1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2018 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 int lpfc_sli4_fp_handle_cqe(struct lpfc_hba *, struct lpfc_queue *,
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_eqe *eqe, uint32_t qidx);
87 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
88 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
89 static int lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba,
90 struct lpfc_sli_ring *pring,
91 struct lpfc_iocbq *cmdiocb);
94 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
99 #if defined(CONFIG_64BIT) && defined(__LITTLE_ENDIAN)
101 * lpfc_sli4_pcimem_bcopy - SLI4 memory copy function
102 * @srcp: Source memory pointer.
103 * @destp: Destination memory pointer.
104 * @cnt: Number of words required to be copied.
105 * Must be a multiple of sizeof(uint64_t)
107 * This function is used for copying data between driver memory
108 * and the SLI WQ. This function also changes the endianness
109 * of each word if native endianness is different from SLI
110 * endianness. This function can be called with or without
114 lpfc_sli4_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
116 uint64_t *src = srcp;
117 uint64_t *dest = destp;
120 for (i = 0; i < (int)cnt; i += sizeof(uint64_t))
124 #define lpfc_sli4_pcimem_bcopy(a, b, c) lpfc_sli_pcimem_bcopy(a, b, c)
128 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
129 * @q: The Work Queue to operate on.
130 * @wqe: The work Queue Entry to put on the Work queue.
132 * This routine will copy the contents of @wqe to the next available entry on
133 * the @q. This function will then ring the Work Queue Doorbell to signal the
134 * HBA to start processing the Work Queue Entry. This function returns 0 if
135 * successful. If no entries are available on @q then this function will return
137 * The caller is expected to hold the hbalock when calling this routine.
140 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe128 *wqe)
142 union lpfc_wqe *temp_wqe;
143 struct lpfc_register doorbell;
150 /* sanity check on queue memory */
153 temp_wqe = q->qe[q->host_index].wqe;
155 /* If the host has not yet processed the next entry then we are done */
156 idx = ((q->host_index + 1) % q->entry_count);
157 if (idx == q->hba_index) {
162 /* set consumption flag every once in a while */
163 if (!((q->host_index + 1) % q->entry_repost))
164 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
166 bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
167 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
168 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
169 lpfc_sli4_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
170 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
171 /* write to DPP aperture taking advatage of Combined Writes */
172 tmp = (uint8_t *)temp_wqe;
174 for (i = 0; i < q->entry_size; i += sizeof(uint64_t))
175 __raw_writeq(*((uint64_t *)(tmp + i)),
178 for (i = 0; i < q->entry_size; i += sizeof(uint32_t))
179 __raw_writel(*((uint32_t *)(tmp + i)),
183 /* ensure WQE bcopy and DPP flushed before doorbell write */
186 /* Update the host index before invoking device */
187 host_index = q->host_index;
193 if (q->db_format == LPFC_DB_LIST_FORMAT) {
194 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
195 bf_set(lpfc_if6_wq_db_list_fm_num_posted, &doorbell, 1);
196 bf_set(lpfc_if6_wq_db_list_fm_dpp, &doorbell, 1);
197 bf_set(lpfc_if6_wq_db_list_fm_dpp_id, &doorbell,
199 bf_set(lpfc_if6_wq_db_list_fm_id, &doorbell,
202 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
203 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
205 /* Leave bits <23:16> clear for if_type 6 dpp */
206 if_type = bf_get(lpfc_sli_intf_if_type,
207 &q->phba->sli4_hba.sli_intf);
208 if (if_type != LPFC_SLI_INTF_IF_TYPE_6)
209 bf_set(lpfc_wq_db_list_fm_index, &doorbell,
212 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
213 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
214 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
218 writel(doorbell.word0, q->db_regaddr);
224 * lpfc_sli4_wq_release - Updates internal hba index for WQ
225 * @q: The Work Queue to operate on.
226 * @index: The index to advance the hba index to.
228 * This routine will update the HBA index of a queue to reflect consumption of
229 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
230 * an entry the host calls this function to update the queue's internal
231 * pointers. This routine returns the number of entries that were consumed by
235 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
237 uint32_t released = 0;
239 /* sanity check on queue memory */
243 if (q->hba_index == index)
246 q->hba_index = ((q->hba_index + 1) % q->entry_count);
248 } while (q->hba_index != index);
253 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
254 * @q: The Mailbox Queue to operate on.
255 * @wqe: The Mailbox Queue Entry to put on the Work queue.
257 * This routine will copy the contents of @mqe to the next available entry on
258 * the @q. This function will then ring the Work Queue Doorbell to signal the
259 * HBA to start processing the Work Queue Entry. This function returns 0 if
260 * successful. If no entries are available on @q then this function will return
262 * The caller is expected to hold the hbalock when calling this routine.
265 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
267 struct lpfc_mqe *temp_mqe;
268 struct lpfc_register doorbell;
270 /* sanity check on queue memory */
273 temp_mqe = q->qe[q->host_index].mqe;
275 /* If the host has not yet processed the next entry then we are done */
276 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
278 lpfc_sli4_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
279 /* Save off the mailbox pointer for completion */
280 q->phba->mbox = (MAILBOX_t *)temp_mqe;
282 /* Update the host index before invoking device */
283 q->host_index = ((q->host_index + 1) % q->entry_count);
287 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
288 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
289 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
294 * lpfc_sli4_mq_release - Updates internal hba index for MQ
295 * @q: The Mailbox Queue to operate on.
297 * This routine will update the HBA index of a queue to reflect consumption of
298 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
299 * an entry the host calls this function to update the queue's internal
300 * pointers. This routine returns the number of entries that were consumed by
304 lpfc_sli4_mq_release(struct lpfc_queue *q)
306 /* sanity check on queue memory */
310 /* Clear the mailbox pointer for completion */
311 q->phba->mbox = NULL;
312 q->hba_index = ((q->hba_index + 1) % q->entry_count);
317 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
318 * @q: The Event Queue to get the first valid EQE from
320 * This routine will get the first valid Event Queue Entry from @q, update
321 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
322 * the Queue (no more work to do), or the Queue is full of EQEs that have been
323 * processed, but not popped back to the HBA then this routine will return NULL.
325 static struct lpfc_eqe *
326 lpfc_sli4_eq_get(struct lpfc_queue *q)
328 struct lpfc_hba *phba;
329 struct lpfc_eqe *eqe;
332 /* sanity check on queue memory */
336 eqe = q->qe[q->hba_index].eqe;
338 /* If the next EQE is not valid then we are done */
339 if (bf_get_le32(lpfc_eqe_valid, eqe) != q->qe_valid)
341 /* If the host has not yet processed the next entry then we are done */
342 idx = ((q->hba_index + 1) % q->entry_count);
343 if (idx == q->host_index)
347 /* if the index wrapped around, toggle the valid bit */
348 if (phba->sli4_hba.pc_sli4_params.eqav && !q->hba_index)
349 q->qe_valid = (q->qe_valid) ? 0 : 1;
353 * insert barrier for instruction interlock : data from the hardware
354 * must have the valid bit checked before it can be copied and acted
355 * upon. Speculative instructions were allowing a bcopy at the start
356 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
357 * after our return, to copy data before the valid bit check above
358 * was done. As such, some of the copied data was stale. The barrier
359 * ensures the check is before any data is copied.
366 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
367 * @q: The Event Queue to disable interrupts
371 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
373 struct lpfc_register doorbell;
376 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
377 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
378 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
379 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
380 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
381 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
385 * lpfc_sli4_if6_eq_clr_intr - Turn off interrupts from this EQ
386 * @q: The Event Queue to disable interrupts
390 lpfc_sli4_if6_eq_clr_intr(struct lpfc_queue *q)
392 struct lpfc_register doorbell;
395 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
396 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
400 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
401 * @q: The Event Queue that the host has completed processing for.
402 * @arm: Indicates whether the host wants to arms this CQ.
404 * This routine will mark all Event Queue Entries on @q, from the last
405 * known completed entry to the last entry that was processed, as completed
406 * by clearing the valid bit for each completion queue entry. Then it will
407 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
408 * The internal host index in the @q will be updated by this routine to indicate
409 * that the host has finished processing the entries. The @arm parameter
410 * indicates that the queue should be rearmed when ringing the doorbell.
412 * This function will return the number of EQEs that were popped.
415 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
417 uint32_t released = 0;
418 struct lpfc_hba *phba;
419 struct lpfc_eqe *temp_eqe;
420 struct lpfc_register doorbell;
422 /* sanity check on queue memory */
427 /* while there are valid entries */
428 while (q->hba_index != q->host_index) {
429 if (!phba->sli4_hba.pc_sli4_params.eqav) {
430 temp_eqe = q->qe[q->host_index].eqe;
431 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
434 q->host_index = ((q->host_index + 1) % q->entry_count);
436 if (unlikely(released == 0 && !arm))
439 /* ring doorbell for number popped */
442 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
443 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
445 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
446 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
447 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
448 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
449 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
450 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
451 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
452 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
453 readl(q->phba->sli4_hba.EQDBregaddr);
458 * lpfc_sli4_if6_eq_release - Indicates the host has finished processing an EQ
459 * @q: The Event Queue that the host has completed processing for.
460 * @arm: Indicates whether the host wants to arms this CQ.
462 * This routine will mark all Event Queue Entries on @q, from the last
463 * known completed entry to the last entry that was processed, as completed
464 * by clearing the valid bit for each completion queue entry. Then it will
465 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
466 * The internal host index in the @q will be updated by this routine to indicate
467 * that the host has finished processing the entries. The @arm parameter
468 * indicates that the queue should be rearmed when ringing the doorbell.
470 * This function will return the number of EQEs that were popped.
473 lpfc_sli4_if6_eq_release(struct lpfc_queue *q, bool arm)
475 uint32_t released = 0;
476 struct lpfc_hba *phba;
477 struct lpfc_eqe *temp_eqe;
478 struct lpfc_register doorbell;
480 /* sanity check on queue memory */
485 /* while there are valid entries */
486 while (q->hba_index != q->host_index) {
487 if (!phba->sli4_hba.pc_sli4_params.eqav) {
488 temp_eqe = q->qe[q->host_index].eqe;
489 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
492 q->host_index = ((q->host_index + 1) % q->entry_count);
494 if (unlikely(released == 0 && !arm))
497 /* ring doorbell for number popped */
500 bf_set(lpfc_if6_eq_doorbell_arm, &doorbell, 1);
501 bf_set(lpfc_if6_eq_doorbell_num_released, &doorbell, released);
502 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
503 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
504 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
505 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
506 readl(q->phba->sli4_hba.EQDBregaddr);
511 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
512 * @q: The Completion Queue to get the first valid CQE from
514 * This routine will get the first valid Completion Queue Entry from @q, update
515 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
516 * the Queue (no more work to do), or the Queue is full of CQEs that have been
517 * processed, but not popped back to the HBA then this routine will return NULL.
519 static struct lpfc_cqe *
520 lpfc_sli4_cq_get(struct lpfc_queue *q)
522 struct lpfc_hba *phba;
523 struct lpfc_cqe *cqe;
526 /* sanity check on queue memory */
530 cqe = q->qe[q->hba_index].cqe;
532 /* If the next CQE is not valid then we are done */
533 if (bf_get_le32(lpfc_cqe_valid, cqe) != q->qe_valid)
535 /* If the host has not yet processed the next entry then we are done */
536 idx = ((q->hba_index + 1) % q->entry_count);
537 if (idx == q->host_index)
541 /* if the index wrapped around, toggle the valid bit */
542 if (phba->sli4_hba.pc_sli4_params.cqav && !q->hba_index)
543 q->qe_valid = (q->qe_valid) ? 0 : 1;
546 * insert barrier for instruction interlock : data from the hardware
547 * must have the valid bit checked before it can be copied and acted
548 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
549 * instructions allowing action on content before valid bit checked,
550 * add barrier here as well. May not be needed as "content" is a
551 * single 32-bit entity here (vs multi word structure for cq's).
558 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
559 * @q: The Completion Queue that the host has completed processing for.
560 * @arm: Indicates whether the host wants to arms this CQ.
562 * This routine will mark all Completion queue entries on @q, from the last
563 * known completed entry to the last entry that was processed, as completed
564 * by clearing the valid bit for each completion queue entry. Then it will
565 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
566 * The internal host index in the @q will be updated by this routine to indicate
567 * that the host has finished processing the entries. The @arm parameter
568 * indicates that the queue should be rearmed when ringing the doorbell.
570 * This function will return the number of CQEs that were released.
573 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
575 uint32_t released = 0;
576 struct lpfc_hba *phba;
577 struct lpfc_cqe *temp_qe;
578 struct lpfc_register doorbell;
580 /* sanity check on queue memory */
585 /* while there are valid entries */
586 while (q->hba_index != q->host_index) {
587 if (!phba->sli4_hba.pc_sli4_params.cqav) {
588 temp_qe = q->qe[q->host_index].cqe;
589 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
592 q->host_index = ((q->host_index + 1) % q->entry_count);
594 if (unlikely(released == 0 && !arm))
597 /* ring doorbell for number popped */
600 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
601 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
602 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
603 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
604 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
605 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
606 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
611 * lpfc_sli4_if6_cq_release - Indicates the host has finished processing a CQ
612 * @q: The Completion Queue that the host has completed processing for.
613 * @arm: Indicates whether the host wants to arms this CQ.
615 * This routine will mark all Completion queue entries on @q, from the last
616 * known completed entry to the last entry that was processed, as completed
617 * by clearing the valid bit for each completion queue entry. Then it will
618 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
619 * The internal host index in the @q will be updated by this routine to indicate
620 * that the host has finished processing the entries. The @arm parameter
621 * indicates that the queue should be rearmed when ringing the doorbell.
623 * This function will return the number of CQEs that were released.
626 lpfc_sli4_if6_cq_release(struct lpfc_queue *q, bool arm)
628 uint32_t released = 0;
629 struct lpfc_hba *phba;
630 struct lpfc_cqe *temp_qe;
631 struct lpfc_register doorbell;
633 /* sanity check on queue memory */
638 /* while there are valid entries */
639 while (q->hba_index != q->host_index) {
640 if (!phba->sli4_hba.pc_sli4_params.cqav) {
641 temp_qe = q->qe[q->host_index].cqe;
642 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
645 q->host_index = ((q->host_index + 1) % q->entry_count);
647 if (unlikely(released == 0 && !arm))
650 /* ring doorbell for number popped */
653 bf_set(lpfc_if6_cq_doorbell_arm, &doorbell, 1);
654 bf_set(lpfc_if6_cq_doorbell_num_released, &doorbell, released);
655 bf_set(lpfc_if6_cq_doorbell_cqid, &doorbell, q->queue_id);
656 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
661 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
662 * @q: The Header Receive Queue to operate on.
663 * @wqe: The Receive Queue Entry to put on the Receive queue.
665 * This routine will copy the contents of @wqe to the next available entry on
666 * the @q. This function will then ring the Receive Queue Doorbell to signal the
667 * HBA to start processing the Receive Queue Entry. This function returns the
668 * index that the rqe was copied to if successful. If no entries are available
669 * on @q then this function will return -ENOMEM.
670 * The caller is expected to hold the hbalock when calling this routine.
673 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
674 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
676 struct lpfc_rqe *temp_hrqe;
677 struct lpfc_rqe *temp_drqe;
678 struct lpfc_register doorbell;
682 /* sanity check on queue memory */
683 if (unlikely(!hq) || unlikely(!dq))
685 hq_put_index = hq->host_index;
686 dq_put_index = dq->host_index;
687 temp_hrqe = hq->qe[hq_put_index].rqe;
688 temp_drqe = dq->qe[dq_put_index].rqe;
690 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
692 if (hq_put_index != dq_put_index)
694 /* If the host has not yet processed the next entry then we are done */
695 if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index)
697 lpfc_sli4_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
698 lpfc_sli4_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
700 /* Update the host index to point to the next slot */
701 hq->host_index = ((hq_put_index + 1) % hq->entry_count);
702 dq->host_index = ((dq_put_index + 1) % dq->entry_count);
705 /* Ring The Header Receive Queue Doorbell */
706 if (!(hq->host_index % hq->entry_repost)) {
708 if (hq->db_format == LPFC_DB_RING_FORMAT) {
709 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
711 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
712 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
713 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
715 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
717 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
721 writel(doorbell.word0, hq->db_regaddr);
727 * lpfc_sli4_rq_release - Updates internal hba index for RQ
728 * @q: The Header Receive Queue to operate on.
730 * This routine will update the HBA index of a queue to reflect consumption of
731 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
732 * consumed an entry the host calls this function to update the queue's
733 * internal pointers. This routine returns the number of entries that were
734 * consumed by the HBA.
737 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
739 /* sanity check on queue memory */
740 if (unlikely(!hq) || unlikely(!dq))
743 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
745 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
746 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
751 * lpfc_cmd_iocb - Get next command iocb entry in the ring
752 * @phba: Pointer to HBA context object.
753 * @pring: Pointer to driver SLI ring object.
755 * This function returns pointer to next command iocb entry
756 * in the command ring. The caller must hold hbalock to prevent
757 * other threads consume the next command iocb.
758 * SLI-2/SLI-3 provide different sized iocbs.
760 static inline IOCB_t *
761 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
763 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
764 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
768 * lpfc_resp_iocb - Get next response iocb entry in the ring
769 * @phba: Pointer to HBA context object.
770 * @pring: Pointer to driver SLI ring object.
772 * This function returns pointer to next response iocb entry
773 * in the response ring. The caller must hold hbalock to make sure
774 * that no other thread consume the next response iocb.
775 * SLI-2/SLI-3 provide different sized iocbs.
777 static inline IOCB_t *
778 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
780 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
781 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
785 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
786 * @phba: Pointer to HBA context object.
788 * This function is called with hbalock held. This function
789 * allocates a new driver iocb object from the iocb pool. If the
790 * allocation is successful, it returns pointer to the newly
791 * allocated iocb object else it returns NULL.
794 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
796 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
797 struct lpfc_iocbq * iocbq = NULL;
799 lockdep_assert_held(&phba->hbalock);
801 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
804 if (phba->iocb_cnt > phba->iocb_max)
805 phba->iocb_max = phba->iocb_cnt;
810 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
811 * @phba: Pointer to HBA context object.
812 * @xritag: XRI value.
814 * This function clears the sglq pointer from the array of acive
815 * sglq's. The xritag that is passed in is used to index into the
816 * array. Before the xritag can be used it needs to be adjusted
817 * by subtracting the xribase.
819 * Returns sglq ponter = success, NULL = Failure.
822 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
824 struct lpfc_sglq *sglq;
826 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
827 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
832 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
833 * @phba: Pointer to HBA context object.
834 * @xritag: XRI value.
836 * This function returns the sglq pointer from the array of acive
837 * sglq's. The xritag that is passed in is used to index into the
838 * array. Before the xritag can be used it needs to be adjusted
839 * by subtracting the xribase.
841 * Returns sglq ponter = success, NULL = Failure.
844 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
846 struct lpfc_sglq *sglq;
848 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
853 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
854 * @phba: Pointer to HBA context object.
855 * @xritag: xri used in this exchange.
856 * @rrq: The RRQ to be cleared.
860 lpfc_clr_rrq_active(struct lpfc_hba *phba,
862 struct lpfc_node_rrq *rrq)
864 struct lpfc_nodelist *ndlp = NULL;
866 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
867 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
869 /* The target DID could have been swapped (cable swap)
870 * we should use the ndlp from the findnode if it is
873 if ((!ndlp) && rrq->ndlp)
879 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
882 rrq->rrq_stop_time = 0;
885 mempool_free(rrq, phba->rrq_pool);
889 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
890 * @phba: Pointer to HBA context object.
892 * This function is called with hbalock held. This function
893 * Checks if stop_time (ratov from setting rrq active) has
894 * been reached, if it has and the send_rrq flag is set then
895 * it will call lpfc_send_rrq. If the send_rrq flag is not set
896 * then it will just call the routine to clear the rrq and
897 * free the rrq resource.
898 * The timer is set to the next rrq that is going to expire before
899 * leaving the routine.
903 lpfc_handle_rrq_active(struct lpfc_hba *phba)
905 struct lpfc_node_rrq *rrq;
906 struct lpfc_node_rrq *nextrrq;
907 unsigned long next_time;
908 unsigned long iflags;
911 spin_lock_irqsave(&phba->hbalock, iflags);
912 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
913 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
914 list_for_each_entry_safe(rrq, nextrrq,
915 &phba->active_rrq_list, list) {
916 if (time_after(jiffies, rrq->rrq_stop_time))
917 list_move(&rrq->list, &send_rrq);
918 else if (time_before(rrq->rrq_stop_time, next_time))
919 next_time = rrq->rrq_stop_time;
921 spin_unlock_irqrestore(&phba->hbalock, iflags);
922 if ((!list_empty(&phba->active_rrq_list)) &&
923 (!(phba->pport->load_flag & FC_UNLOADING)))
924 mod_timer(&phba->rrq_tmr, next_time);
925 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
926 list_del(&rrq->list);
928 /* this call will free the rrq */
929 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
930 else if (lpfc_send_rrq(phba, rrq)) {
931 /* if we send the rrq then the completion handler
932 * will clear the bit in the xribitmap.
934 lpfc_clr_rrq_active(phba, rrq->xritag,
941 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
942 * @vport: Pointer to vport context object.
943 * @xri: The xri used in the exchange.
944 * @did: The targets DID for this exchange.
946 * returns NULL = rrq not found in the phba->active_rrq_list.
947 * rrq = rrq for this xri and target.
949 struct lpfc_node_rrq *
950 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
952 struct lpfc_hba *phba = vport->phba;
953 struct lpfc_node_rrq *rrq;
954 struct lpfc_node_rrq *nextrrq;
955 unsigned long iflags;
957 if (phba->sli_rev != LPFC_SLI_REV4)
959 spin_lock_irqsave(&phba->hbalock, iflags);
960 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
961 if (rrq->vport == vport && rrq->xritag == xri &&
962 rrq->nlp_DID == did){
963 list_del(&rrq->list);
964 spin_unlock_irqrestore(&phba->hbalock, iflags);
968 spin_unlock_irqrestore(&phba->hbalock, iflags);
973 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
974 * @vport: Pointer to vport context object.
975 * @ndlp: Pointer to the lpfc_node_list structure.
976 * If ndlp is NULL Remove all active RRQs for this vport from the
977 * phba->active_rrq_list and clear the rrq.
978 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
981 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
984 struct lpfc_hba *phba = vport->phba;
985 struct lpfc_node_rrq *rrq;
986 struct lpfc_node_rrq *nextrrq;
987 unsigned long iflags;
990 if (phba->sli_rev != LPFC_SLI_REV4)
993 lpfc_sli4_vport_delete_els_xri_aborted(vport);
994 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
996 spin_lock_irqsave(&phba->hbalock, iflags);
997 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
998 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
999 list_move(&rrq->list, &rrq_list);
1000 spin_unlock_irqrestore(&phba->hbalock, iflags);
1002 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
1003 list_del(&rrq->list);
1004 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1009 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
1010 * @phba: Pointer to HBA context object.
1011 * @ndlp: Targets nodelist pointer for this exchange.
1012 * @xritag the xri in the bitmap to test.
1014 * This function is called with hbalock held. This function
1015 * returns 0 = rrq not active for this xri
1016 * 1 = rrq is valid for this xri.
1019 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1022 lockdep_assert_held(&phba->hbalock);
1025 if (!ndlp->active_rrqs_xri_bitmap)
1027 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1034 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
1035 * @phba: Pointer to HBA context object.
1036 * @ndlp: nodelist pointer for this target.
1037 * @xritag: xri used in this exchange.
1038 * @rxid: Remote Exchange ID.
1039 * @send_rrq: Flag used to determine if we should send rrq els cmd.
1041 * This function takes the hbalock.
1042 * The active bit is always set in the active rrq xri_bitmap even
1043 * if there is no slot avaiable for the other rrq information.
1045 * returns 0 rrq actived for this xri
1046 * < 0 No memory or invalid ndlp.
1049 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1050 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
1052 unsigned long iflags;
1053 struct lpfc_node_rrq *rrq;
1059 if (!phba->cfg_enable_rrq)
1062 spin_lock_irqsave(&phba->hbalock, iflags);
1063 if (phba->pport->load_flag & FC_UNLOADING) {
1064 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1069 * set the active bit even if there is no mem available.
1071 if (NLP_CHK_FREE_REQ(ndlp))
1074 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
1077 if (!ndlp->active_rrqs_xri_bitmap)
1080 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1083 spin_unlock_irqrestore(&phba->hbalock, iflags);
1084 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
1086 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1087 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
1088 " DID:0x%x Send:%d\n",
1089 xritag, rxid, ndlp->nlp_DID, send_rrq);
1092 if (phba->cfg_enable_rrq == 1)
1093 rrq->send_rrq = send_rrq;
1096 rrq->xritag = xritag;
1097 rrq->rrq_stop_time = jiffies +
1098 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
1100 rrq->nlp_DID = ndlp->nlp_DID;
1101 rrq->vport = ndlp->vport;
1103 spin_lock_irqsave(&phba->hbalock, iflags);
1104 empty = list_empty(&phba->active_rrq_list);
1105 list_add_tail(&rrq->list, &phba->active_rrq_list);
1106 phba->hba_flag |= HBA_RRQ_ACTIVE;
1108 lpfc_worker_wake_up(phba);
1109 spin_unlock_irqrestore(&phba->hbalock, iflags);
1112 spin_unlock_irqrestore(&phba->hbalock, iflags);
1113 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1114 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
1115 " DID:0x%x Send:%d\n",
1116 xritag, rxid, ndlp->nlp_DID, send_rrq);
1121 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
1122 * @phba: Pointer to HBA context object.
1123 * @piocb: Pointer to the iocbq.
1125 * This function is called with the ring lock held. This function
1126 * gets a new driver sglq object from the sglq list. If the
1127 * list is not empty then it is successful, it returns pointer to the newly
1128 * allocated sglq object else it returns NULL.
1130 static struct lpfc_sglq *
1131 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1133 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
1134 struct lpfc_sglq *sglq = NULL;
1135 struct lpfc_sglq *start_sglq = NULL;
1136 struct lpfc_scsi_buf *lpfc_cmd;
1137 struct lpfc_nodelist *ndlp;
1140 lockdep_assert_held(&phba->hbalock);
1142 if (piocbq->iocb_flag & LPFC_IO_FCP) {
1143 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
1144 ndlp = lpfc_cmd->rdata->pnode;
1145 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
1146 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
1147 ndlp = piocbq->context_un.ndlp;
1148 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
1149 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
1152 ndlp = piocbq->context_un.ndlp;
1154 ndlp = piocbq->context1;
1157 spin_lock(&phba->sli4_hba.sgl_list_lock);
1158 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
1163 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
1164 test_bit(sglq->sli4_lxritag,
1165 ndlp->active_rrqs_xri_bitmap)) {
1166 /* This xri has an rrq outstanding for this DID.
1167 * put it back in the list and get another xri.
1169 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1171 list_remove_head(lpfc_els_sgl_list, sglq,
1172 struct lpfc_sglq, list);
1173 if (sglq == start_sglq) {
1174 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1182 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1183 sglq->state = SGL_ALLOCATED;
1185 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1190 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
1191 * @phba: Pointer to HBA context object.
1192 * @piocb: Pointer to the iocbq.
1194 * This function is called with the sgl_list lock held. This function
1195 * gets a new driver sglq object from the sglq list. If the
1196 * list is not empty then it is successful, it returns pointer to the newly
1197 * allocated sglq object else it returns NULL.
1200 __lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1202 struct list_head *lpfc_nvmet_sgl_list;
1203 struct lpfc_sglq *sglq = NULL;
1205 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1207 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1209 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1212 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1213 sglq->state = SGL_ALLOCATED;
1218 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
1219 * @phba: Pointer to HBA context object.
1221 * This function is called with no lock held. This function
1222 * allocates a new driver iocb object from the iocb pool. If the
1223 * allocation is successful, it returns pointer to the newly
1224 * allocated iocb object else it returns NULL.
1227 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1229 struct lpfc_iocbq * iocbq = NULL;
1230 unsigned long iflags;
1232 spin_lock_irqsave(&phba->hbalock, iflags);
1233 iocbq = __lpfc_sli_get_iocbq(phba);
1234 spin_unlock_irqrestore(&phba->hbalock, iflags);
1239 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1240 * @phba: Pointer to HBA context object.
1241 * @iocbq: Pointer to driver iocb object.
1243 * This function is called with hbalock held to release driver
1244 * iocb object to the iocb pool. The iotag in the iocb object
1245 * does not change for each use of the iocb object. This function
1246 * clears all other fields of the iocb object when it is freed.
1247 * The sqlq structure that holds the xritag and phys and virtual
1248 * mappings for the scatter gather list is retrieved from the
1249 * active array of sglq. The get of the sglq pointer also clears
1250 * the entry in the array. If the status of the IO indiactes that
1251 * this IO was aborted then the sglq entry it put on the
1252 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1253 * IO has good status or fails for any other reason then the sglq
1254 * entry is added to the free list (lpfc_els_sgl_list).
1257 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1259 struct lpfc_sglq *sglq;
1260 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1261 unsigned long iflag = 0;
1262 struct lpfc_sli_ring *pring;
1264 lockdep_assert_held(&phba->hbalock);
1266 if (iocbq->sli4_xritag == NO_XRI)
1269 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1273 if (iocbq->iocb_flag & LPFC_IO_NVMET) {
1274 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1276 sglq->state = SGL_FREED;
1278 list_add_tail(&sglq->list,
1279 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1280 spin_unlock_irqrestore(
1281 &phba->sli4_hba.sgl_list_lock, iflag);
1285 pring = phba->sli4_hba.els_wq->pring;
1286 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1287 (sglq->state != SGL_XRI_ABORTED)) {
1288 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1290 list_add(&sglq->list,
1291 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1292 spin_unlock_irqrestore(
1293 &phba->sli4_hba.sgl_list_lock, iflag);
1295 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1297 sglq->state = SGL_FREED;
1299 list_add_tail(&sglq->list,
1300 &phba->sli4_hba.lpfc_els_sgl_list);
1301 spin_unlock_irqrestore(
1302 &phba->sli4_hba.sgl_list_lock, iflag);
1304 /* Check if TXQ queue needs to be serviced */
1305 if (!list_empty(&pring->txq))
1306 lpfc_worker_wake_up(phba);
1312 * Clean all volatile data fields, preserve iotag and node struct.
1314 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1315 iocbq->sli4_lxritag = NO_XRI;
1316 iocbq->sli4_xritag = NO_XRI;
1317 iocbq->iocb_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET |
1319 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1324 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1325 * @phba: Pointer to HBA context object.
1326 * @iocbq: Pointer to driver iocb object.
1328 * This function is called with hbalock held to release driver
1329 * iocb object to the iocb pool. The iotag in the iocb object
1330 * does not change for each use of the iocb object. This function
1331 * clears all other fields of the iocb object when it is freed.
1334 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1336 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1338 lockdep_assert_held(&phba->hbalock);
1341 * Clean all volatile data fields, preserve iotag and node struct.
1343 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1344 iocbq->sli4_xritag = NO_XRI;
1345 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1349 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1350 * @phba: Pointer to HBA context object.
1351 * @iocbq: Pointer to driver iocb object.
1353 * This function is called with hbalock held to release driver
1354 * iocb object to the iocb pool. The iotag in the iocb object
1355 * does not change for each use of the iocb object. This function
1356 * clears all other fields of the iocb object when it is freed.
1359 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1361 lockdep_assert_held(&phba->hbalock);
1363 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1368 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1369 * @phba: Pointer to HBA context object.
1370 * @iocbq: Pointer to driver iocb object.
1372 * This function is called with no lock held to release the iocb to
1376 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1378 unsigned long iflags;
1381 * Clean all volatile data fields, preserve iotag and node struct.
1383 spin_lock_irqsave(&phba->hbalock, iflags);
1384 __lpfc_sli_release_iocbq(phba, iocbq);
1385 spin_unlock_irqrestore(&phba->hbalock, iflags);
1389 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1390 * @phba: Pointer to HBA context object.
1391 * @iocblist: List of IOCBs.
1392 * @ulpstatus: ULP status in IOCB command field.
1393 * @ulpWord4: ULP word-4 in IOCB command field.
1395 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1396 * on the list by invoking the complete callback function associated with the
1397 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1401 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1402 uint32_t ulpstatus, uint32_t ulpWord4)
1404 struct lpfc_iocbq *piocb;
1406 while (!list_empty(iocblist)) {
1407 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1408 if (!piocb->iocb_cmpl)
1409 lpfc_sli_release_iocbq(phba, piocb);
1411 piocb->iocb.ulpStatus = ulpstatus;
1412 piocb->iocb.un.ulpWord[4] = ulpWord4;
1413 (piocb->iocb_cmpl) (phba, piocb, piocb);
1420 * lpfc_sli_iocb_cmd_type - Get the iocb type
1421 * @iocb_cmnd: iocb command code.
1423 * This function is called by ring event handler function to get the iocb type.
1424 * This function translates the iocb command to an iocb command type used to
1425 * decide the final disposition of each completed IOCB.
1426 * The function returns
1427 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1428 * LPFC_SOL_IOCB if it is a solicited iocb completion
1429 * LPFC_ABORT_IOCB if it is an abort iocb
1430 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1432 * The caller is not required to hold any lock.
1434 static lpfc_iocb_type
1435 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1437 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1439 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1442 switch (iocb_cmnd) {
1443 case CMD_XMIT_SEQUENCE_CR:
1444 case CMD_XMIT_SEQUENCE_CX:
1445 case CMD_XMIT_BCAST_CN:
1446 case CMD_XMIT_BCAST_CX:
1447 case CMD_ELS_REQUEST_CR:
1448 case CMD_ELS_REQUEST_CX:
1449 case CMD_CREATE_XRI_CR:
1450 case CMD_CREATE_XRI_CX:
1451 case CMD_GET_RPI_CN:
1452 case CMD_XMIT_ELS_RSP_CX:
1453 case CMD_GET_RPI_CR:
1454 case CMD_FCP_IWRITE_CR:
1455 case CMD_FCP_IWRITE_CX:
1456 case CMD_FCP_IREAD_CR:
1457 case CMD_FCP_IREAD_CX:
1458 case CMD_FCP_ICMND_CR:
1459 case CMD_FCP_ICMND_CX:
1460 case CMD_FCP_TSEND_CX:
1461 case CMD_FCP_TRSP_CX:
1462 case CMD_FCP_TRECEIVE_CX:
1463 case CMD_FCP_AUTO_TRSP_CX:
1464 case CMD_ADAPTER_MSG:
1465 case CMD_ADAPTER_DUMP:
1466 case CMD_XMIT_SEQUENCE64_CR:
1467 case CMD_XMIT_SEQUENCE64_CX:
1468 case CMD_XMIT_BCAST64_CN:
1469 case CMD_XMIT_BCAST64_CX:
1470 case CMD_ELS_REQUEST64_CR:
1471 case CMD_ELS_REQUEST64_CX:
1472 case CMD_FCP_IWRITE64_CR:
1473 case CMD_FCP_IWRITE64_CX:
1474 case CMD_FCP_IREAD64_CR:
1475 case CMD_FCP_IREAD64_CX:
1476 case CMD_FCP_ICMND64_CR:
1477 case CMD_FCP_ICMND64_CX:
1478 case CMD_FCP_TSEND64_CX:
1479 case CMD_FCP_TRSP64_CX:
1480 case CMD_FCP_TRECEIVE64_CX:
1481 case CMD_GEN_REQUEST64_CR:
1482 case CMD_GEN_REQUEST64_CX:
1483 case CMD_XMIT_ELS_RSP64_CX:
1484 case DSSCMD_IWRITE64_CR:
1485 case DSSCMD_IWRITE64_CX:
1486 case DSSCMD_IREAD64_CR:
1487 case DSSCMD_IREAD64_CX:
1488 type = LPFC_SOL_IOCB;
1490 case CMD_ABORT_XRI_CN:
1491 case CMD_ABORT_XRI_CX:
1492 case CMD_CLOSE_XRI_CN:
1493 case CMD_CLOSE_XRI_CX:
1494 case CMD_XRI_ABORTED_CX:
1495 case CMD_ABORT_MXRI64_CN:
1496 case CMD_XMIT_BLS_RSP64_CX:
1497 type = LPFC_ABORT_IOCB;
1499 case CMD_RCV_SEQUENCE_CX:
1500 case CMD_RCV_ELS_REQ_CX:
1501 case CMD_RCV_SEQUENCE64_CX:
1502 case CMD_RCV_ELS_REQ64_CX:
1503 case CMD_ASYNC_STATUS:
1504 case CMD_IOCB_RCV_SEQ64_CX:
1505 case CMD_IOCB_RCV_ELS64_CX:
1506 case CMD_IOCB_RCV_CONT64_CX:
1507 case CMD_IOCB_RET_XRI64_CX:
1508 type = LPFC_UNSOL_IOCB;
1510 case CMD_IOCB_XMIT_MSEQ64_CR:
1511 case CMD_IOCB_XMIT_MSEQ64_CX:
1512 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1513 case CMD_IOCB_RCV_ELS_LIST64_CX:
1514 case CMD_IOCB_CLOSE_EXTENDED_CN:
1515 case CMD_IOCB_ABORT_EXTENDED_CN:
1516 case CMD_IOCB_RET_HBQE64_CN:
1517 case CMD_IOCB_FCP_IBIDIR64_CR:
1518 case CMD_IOCB_FCP_IBIDIR64_CX:
1519 case CMD_IOCB_FCP_ITASKMGT64_CX:
1520 case CMD_IOCB_LOGENTRY_CN:
1521 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1522 printk("%s - Unhandled SLI-3 Command x%x\n",
1523 __func__, iocb_cmnd);
1524 type = LPFC_UNKNOWN_IOCB;
1527 type = LPFC_UNKNOWN_IOCB;
1535 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1536 * @phba: Pointer to HBA context object.
1538 * This function is called from SLI initialization code
1539 * to configure every ring of the HBA's SLI interface. The
1540 * caller is not required to hold any lock. This function issues
1541 * a config_ring mailbox command for each ring.
1542 * This function returns zero if successful else returns a negative
1546 lpfc_sli_ring_map(struct lpfc_hba *phba)
1548 struct lpfc_sli *psli = &phba->sli;
1553 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1557 phba->link_state = LPFC_INIT_MBX_CMDS;
1558 for (i = 0; i < psli->num_rings; i++) {
1559 lpfc_config_ring(phba, i, pmb);
1560 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1561 if (rc != MBX_SUCCESS) {
1562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1563 "0446 Adapter failed to init (%d), "
1564 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1566 rc, pmbox->mbxCommand,
1567 pmbox->mbxStatus, i);
1568 phba->link_state = LPFC_HBA_ERROR;
1573 mempool_free(pmb, phba->mbox_mem_pool);
1578 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1579 * @phba: Pointer to HBA context object.
1580 * @pring: Pointer to driver SLI ring object.
1581 * @piocb: Pointer to the driver iocb object.
1583 * This function is called with hbalock held. The function adds the
1584 * new iocb to txcmplq of the given ring. This function always returns
1585 * 0. If this function is called for ELS ring, this function checks if
1586 * there is a vport associated with the ELS command. This function also
1587 * starts els_tmofunc timer if this is an ELS command.
1590 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1591 struct lpfc_iocbq *piocb)
1593 lockdep_assert_held(&phba->hbalock);
1597 list_add_tail(&piocb->list, &pring->txcmplq);
1598 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1600 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1601 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1602 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1603 BUG_ON(!piocb->vport);
1604 if (!(piocb->vport->load_flag & FC_UNLOADING))
1605 mod_timer(&piocb->vport->els_tmofunc,
1607 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1614 * lpfc_sli_ringtx_get - Get first element of the txq
1615 * @phba: Pointer to HBA context object.
1616 * @pring: Pointer to driver SLI ring object.
1618 * This function is called with hbalock held to get next
1619 * iocb in txq of the given ring. If there is any iocb in
1620 * the txq, the function returns first iocb in the list after
1621 * removing the iocb from the list, else it returns NULL.
1624 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1626 struct lpfc_iocbq *cmd_iocb;
1628 lockdep_assert_held(&phba->hbalock);
1630 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1635 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1636 * @phba: Pointer to HBA context object.
1637 * @pring: Pointer to driver SLI ring object.
1639 * This function is called with hbalock held and the caller must post the
1640 * iocb without releasing the lock. If the caller releases the lock,
1641 * iocb slot returned by the function is not guaranteed to be available.
1642 * The function returns pointer to the next available iocb slot if there
1643 * is available slot in the ring, else it returns NULL.
1644 * If the get index of the ring is ahead of the put index, the function
1645 * will post an error attention event to the worker thread to take the
1646 * HBA to offline state.
1649 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1651 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1652 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1654 lockdep_assert_held(&phba->hbalock);
1656 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1657 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1658 pring->sli.sli3.next_cmdidx = 0;
1660 if (unlikely(pring->sli.sli3.local_getidx ==
1661 pring->sli.sli3.next_cmdidx)) {
1663 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1665 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1666 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1667 "0315 Ring %d issue: portCmdGet %d "
1668 "is bigger than cmd ring %d\n",
1670 pring->sli.sli3.local_getidx,
1673 phba->link_state = LPFC_HBA_ERROR;
1675 * All error attention handlers are posted to
1678 phba->work_ha |= HA_ERATT;
1679 phba->work_hs = HS_FFER3;
1681 lpfc_worker_wake_up(phba);
1686 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1690 return lpfc_cmd_iocb(phba, pring);
1694 * lpfc_sli_next_iotag - Get an iotag for the iocb
1695 * @phba: Pointer to HBA context object.
1696 * @iocbq: Pointer to driver iocb object.
1698 * This function gets an iotag for the iocb. If there is no unused iotag and
1699 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1700 * array and assigns a new iotag.
1701 * The function returns the allocated iotag if successful, else returns zero.
1702 * Zero is not a valid iotag.
1703 * The caller is not required to hold any lock.
1706 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1708 struct lpfc_iocbq **new_arr;
1709 struct lpfc_iocbq **old_arr;
1711 struct lpfc_sli *psli = &phba->sli;
1714 spin_lock_irq(&phba->hbalock);
1715 iotag = psli->last_iotag;
1716 if(++iotag < psli->iocbq_lookup_len) {
1717 psli->last_iotag = iotag;
1718 psli->iocbq_lookup[iotag] = iocbq;
1719 spin_unlock_irq(&phba->hbalock);
1720 iocbq->iotag = iotag;
1722 } else if (psli->iocbq_lookup_len < (0xffff
1723 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1724 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1725 spin_unlock_irq(&phba->hbalock);
1726 new_arr = kcalloc(new_len, sizeof(struct lpfc_iocbq *),
1729 spin_lock_irq(&phba->hbalock);
1730 old_arr = psli->iocbq_lookup;
1731 if (new_len <= psli->iocbq_lookup_len) {
1732 /* highly unprobable case */
1734 iotag = psli->last_iotag;
1735 if(++iotag < psli->iocbq_lookup_len) {
1736 psli->last_iotag = iotag;
1737 psli->iocbq_lookup[iotag] = iocbq;
1738 spin_unlock_irq(&phba->hbalock);
1739 iocbq->iotag = iotag;
1742 spin_unlock_irq(&phba->hbalock);
1745 if (psli->iocbq_lookup)
1746 memcpy(new_arr, old_arr,
1747 ((psli->last_iotag + 1) *
1748 sizeof (struct lpfc_iocbq *)));
1749 psli->iocbq_lookup = new_arr;
1750 psli->iocbq_lookup_len = new_len;
1751 psli->last_iotag = iotag;
1752 psli->iocbq_lookup[iotag] = iocbq;
1753 spin_unlock_irq(&phba->hbalock);
1754 iocbq->iotag = iotag;
1759 spin_unlock_irq(&phba->hbalock);
1761 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1762 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1769 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1770 * @phba: Pointer to HBA context object.
1771 * @pring: Pointer to driver SLI ring object.
1772 * @iocb: Pointer to iocb slot in the ring.
1773 * @nextiocb: Pointer to driver iocb object which need to be
1774 * posted to firmware.
1776 * This function is called with hbalock held to post a new iocb to
1777 * the firmware. This function copies the new iocb to ring iocb slot and
1778 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1779 * a completion call back for this iocb else the function will free the
1783 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1784 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1786 lockdep_assert_held(&phba->hbalock);
1790 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1793 if (pring->ringno == LPFC_ELS_RING) {
1794 lpfc_debugfs_slow_ring_trc(phba,
1795 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1796 *(((uint32_t *) &nextiocb->iocb) + 4),
1797 *(((uint32_t *) &nextiocb->iocb) + 6),
1798 *(((uint32_t *) &nextiocb->iocb) + 7));
1802 * Issue iocb command to adapter
1804 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1806 pring->stats.iocb_cmd++;
1809 * If there is no completion routine to call, we can release the
1810 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1811 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1813 if (nextiocb->iocb_cmpl)
1814 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1816 __lpfc_sli_release_iocbq(phba, nextiocb);
1819 * Let the HBA know what IOCB slot will be the next one the
1820 * driver will put a command into.
1822 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1823 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1827 * lpfc_sli_update_full_ring - Update the chip attention register
1828 * @phba: Pointer to HBA context object.
1829 * @pring: Pointer to driver SLI ring object.
1831 * The caller is not required to hold any lock for calling this function.
1832 * This function updates the chip attention bits for the ring to inform firmware
1833 * that there are pending work to be done for this ring and requests an
1834 * interrupt when there is space available in the ring. This function is
1835 * called when the driver is unable to post more iocbs to the ring due
1836 * to unavailability of space in the ring.
1839 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1841 int ringno = pring->ringno;
1843 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1848 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1849 * The HBA will tell us when an IOCB entry is available.
1851 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1852 readl(phba->CAregaddr); /* flush */
1854 pring->stats.iocb_cmd_full++;
1858 * lpfc_sli_update_ring - Update chip attention register
1859 * @phba: Pointer to HBA context object.
1860 * @pring: Pointer to driver SLI ring object.
1862 * This function updates the chip attention register bit for the
1863 * given ring to inform HBA that there is more work to be done
1864 * in this ring. The caller is not required to hold any lock.
1867 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1869 int ringno = pring->ringno;
1872 * Tell the HBA that there is work to do in this ring.
1874 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1876 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1877 readl(phba->CAregaddr); /* flush */
1882 * lpfc_sli_resume_iocb - Process iocbs in the txq
1883 * @phba: Pointer to HBA context object.
1884 * @pring: Pointer to driver SLI ring object.
1886 * This function is called with hbalock held to post pending iocbs
1887 * in the txq to the firmware. This function is called when driver
1888 * detects space available in the ring.
1891 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1894 struct lpfc_iocbq *nextiocb;
1896 lockdep_assert_held(&phba->hbalock);
1900 * (a) there is anything on the txq to send
1902 * (c) link attention events can be processed (fcp ring only)
1903 * (d) IOCB processing is not blocked by the outstanding mbox command.
1906 if (lpfc_is_link_up(phba) &&
1907 (!list_empty(&pring->txq)) &&
1908 (pring->ringno != LPFC_FCP_RING ||
1909 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1911 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1912 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1913 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1916 lpfc_sli_update_ring(phba, pring);
1918 lpfc_sli_update_full_ring(phba, pring);
1925 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1926 * @phba: Pointer to HBA context object.
1927 * @hbqno: HBQ number.
1929 * This function is called with hbalock held to get the next
1930 * available slot for the given HBQ. If there is free slot
1931 * available for the HBQ it will return pointer to the next available
1932 * HBQ entry else it will return NULL.
1934 static struct lpfc_hbq_entry *
1935 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1937 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1939 lockdep_assert_held(&phba->hbalock);
1941 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1942 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1943 hbqp->next_hbqPutIdx = 0;
1945 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1946 uint32_t raw_index = phba->hbq_get[hbqno];
1947 uint32_t getidx = le32_to_cpu(raw_index);
1949 hbqp->local_hbqGetIdx = getidx;
1951 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1952 lpfc_printf_log(phba, KERN_ERR,
1953 LOG_SLI | LOG_VPORT,
1954 "1802 HBQ %d: local_hbqGetIdx "
1955 "%u is > than hbqp->entry_count %u\n",
1956 hbqno, hbqp->local_hbqGetIdx,
1959 phba->link_state = LPFC_HBA_ERROR;
1963 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1967 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1972 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1973 * @phba: Pointer to HBA context object.
1975 * This function is called with no lock held to free all the
1976 * hbq buffers while uninitializing the SLI interface. It also
1977 * frees the HBQ buffers returned by the firmware but not yet
1978 * processed by the upper layers.
1981 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1983 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1984 struct hbq_dmabuf *hbq_buf;
1985 unsigned long flags;
1988 hbq_count = lpfc_sli_hbq_count();
1989 /* Return all memory used by all HBQs */
1990 spin_lock_irqsave(&phba->hbalock, flags);
1991 for (i = 0; i < hbq_count; ++i) {
1992 list_for_each_entry_safe(dmabuf, next_dmabuf,
1993 &phba->hbqs[i].hbq_buffer_list, list) {
1994 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1995 list_del(&hbq_buf->dbuf.list);
1996 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1998 phba->hbqs[i].buffer_count = 0;
2001 /* Mark the HBQs not in use */
2002 phba->hbq_in_use = 0;
2003 spin_unlock_irqrestore(&phba->hbalock, flags);
2007 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
2008 * @phba: Pointer to HBA context object.
2009 * @hbqno: HBQ number.
2010 * @hbq_buf: Pointer to HBQ buffer.
2012 * This function is called with the hbalock held to post a
2013 * hbq buffer to the firmware. If the function finds an empty
2014 * slot in the HBQ, it will post the buffer. The function will return
2015 * pointer to the hbq entry if it successfully post the buffer
2016 * else it will return NULL.
2019 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
2020 struct hbq_dmabuf *hbq_buf)
2022 lockdep_assert_held(&phba->hbalock);
2023 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
2027 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
2028 * @phba: Pointer to HBA context object.
2029 * @hbqno: HBQ number.
2030 * @hbq_buf: Pointer to HBQ buffer.
2032 * This function is called with the hbalock held to post a hbq buffer to the
2033 * firmware. If the function finds an empty slot in the HBQ, it will post the
2034 * buffer and place it on the hbq_buffer_list. The function will return zero if
2035 * it successfully post the buffer else it will return an error.
2038 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
2039 struct hbq_dmabuf *hbq_buf)
2041 struct lpfc_hbq_entry *hbqe;
2042 dma_addr_t physaddr = hbq_buf->dbuf.phys;
2044 lockdep_assert_held(&phba->hbalock);
2045 /* Get next HBQ entry slot to use */
2046 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
2048 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2050 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
2051 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
2052 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
2053 hbqe->bde.tus.f.bdeFlags = 0;
2054 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
2055 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
2057 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
2058 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
2060 readl(phba->hbq_put + hbqno);
2061 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
2068 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
2069 * @phba: Pointer to HBA context object.
2070 * @hbqno: HBQ number.
2071 * @hbq_buf: Pointer to HBQ buffer.
2073 * This function is called with the hbalock held to post an RQE to the SLI4
2074 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
2075 * the hbq_buffer_list and return zero, otherwise it will return an error.
2078 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
2079 struct hbq_dmabuf *hbq_buf)
2082 struct lpfc_rqe hrqe;
2083 struct lpfc_rqe drqe;
2084 struct lpfc_queue *hrq;
2085 struct lpfc_queue *drq;
2087 if (hbqno != LPFC_ELS_HBQ)
2089 hrq = phba->sli4_hba.hdr_rq;
2090 drq = phba->sli4_hba.dat_rq;
2092 lockdep_assert_held(&phba->hbalock);
2093 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
2094 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
2095 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
2096 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
2097 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
2100 hbq_buf->tag = (rc | (hbqno << 16));
2101 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
2105 /* HBQ for ELS and CT traffic. */
2106 static struct lpfc_hbq_init lpfc_els_hbq = {
2111 .ring_mask = (1 << LPFC_ELS_RING),
2118 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
2123 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
2124 * @phba: Pointer to HBA context object.
2125 * @hbqno: HBQ number.
2126 * @count: Number of HBQ buffers to be posted.
2128 * This function is called with no lock held to post more hbq buffers to the
2129 * given HBQ. The function returns the number of HBQ buffers successfully
2133 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
2135 uint32_t i, posted = 0;
2136 unsigned long flags;
2137 struct hbq_dmabuf *hbq_buffer;
2138 LIST_HEAD(hbq_buf_list);
2139 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
2142 if ((phba->hbqs[hbqno].buffer_count + count) >
2143 lpfc_hbq_defs[hbqno]->entry_count)
2144 count = lpfc_hbq_defs[hbqno]->entry_count -
2145 phba->hbqs[hbqno].buffer_count;
2148 /* Allocate HBQ entries */
2149 for (i = 0; i < count; i++) {
2150 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
2153 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
2155 /* Check whether HBQ is still in use */
2156 spin_lock_irqsave(&phba->hbalock, flags);
2157 if (!phba->hbq_in_use)
2159 while (!list_empty(&hbq_buf_list)) {
2160 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2162 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
2164 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
2165 phba->hbqs[hbqno].buffer_count++;
2168 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2170 spin_unlock_irqrestore(&phba->hbalock, flags);
2173 spin_unlock_irqrestore(&phba->hbalock, flags);
2174 while (!list_empty(&hbq_buf_list)) {
2175 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2177 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2183 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
2184 * @phba: Pointer to HBA context object.
2187 * This function posts more buffers to the HBQ. This function
2188 * is called with no lock held. The function returns the number of HBQ entries
2189 * successfully allocated.
2192 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
2194 if (phba->sli_rev == LPFC_SLI_REV4)
2197 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2198 lpfc_hbq_defs[qno]->add_count);
2202 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
2203 * @phba: Pointer to HBA context object.
2204 * @qno: HBQ queue number.
2206 * This function is called from SLI initialization code path with
2207 * no lock held to post initial HBQ buffers to firmware. The
2208 * function returns the number of HBQ entries successfully allocated.
2211 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2213 if (phba->sli_rev == LPFC_SLI_REV4)
2214 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2215 lpfc_hbq_defs[qno]->entry_count);
2217 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2218 lpfc_hbq_defs[qno]->init_count);
2222 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2223 * @phba: Pointer to HBA context object.
2224 * @hbqno: HBQ number.
2226 * This function removes the first hbq buffer on an hbq list and returns a
2227 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2229 static struct hbq_dmabuf *
2230 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2232 struct lpfc_dmabuf *d_buf;
2234 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2237 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2241 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2242 * @phba: Pointer to HBA context object.
2243 * @hbqno: HBQ number.
2245 * This function removes the first RQ buffer on an RQ buffer list and returns a
2246 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2248 static struct rqb_dmabuf *
2249 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2251 struct lpfc_dmabuf *h_buf;
2252 struct lpfc_rqb *rqbp;
2255 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2256 struct lpfc_dmabuf, list);
2259 rqbp->buffer_count--;
2260 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2264 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2265 * @phba: Pointer to HBA context object.
2266 * @tag: Tag of the hbq buffer.
2268 * This function searches for the hbq buffer associated with the given tag in
2269 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2270 * otherwise it returns NULL.
2272 static struct hbq_dmabuf *
2273 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2275 struct lpfc_dmabuf *d_buf;
2276 struct hbq_dmabuf *hbq_buf;
2280 if (hbqno >= LPFC_MAX_HBQS)
2283 spin_lock_irq(&phba->hbalock);
2284 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2285 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2286 if (hbq_buf->tag == tag) {
2287 spin_unlock_irq(&phba->hbalock);
2291 spin_unlock_irq(&phba->hbalock);
2292 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2293 "1803 Bad hbq tag. Data: x%x x%x\n",
2294 tag, phba->hbqs[tag >> 16].buffer_count);
2299 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2300 * @phba: Pointer to HBA context object.
2301 * @hbq_buffer: Pointer to HBQ buffer.
2303 * This function is called with hbalock. This function gives back
2304 * the hbq buffer to firmware. If the HBQ does not have space to
2305 * post the buffer, it will free the buffer.
2308 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2313 hbqno = hbq_buffer->tag >> 16;
2314 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2315 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2320 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2321 * @mbxCommand: mailbox command code.
2323 * This function is called by the mailbox event handler function to verify
2324 * that the completed mailbox command is a legitimate mailbox command. If the
2325 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2326 * and the mailbox event handler will take the HBA offline.
2329 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2333 switch (mbxCommand) {
2337 case MBX_WRITE_VPARMS:
2338 case MBX_RUN_BIU_DIAG:
2341 case MBX_CONFIG_LINK:
2342 case MBX_CONFIG_RING:
2343 case MBX_RESET_RING:
2344 case MBX_READ_CONFIG:
2345 case MBX_READ_RCONFIG:
2346 case MBX_READ_SPARM:
2347 case MBX_READ_STATUS:
2351 case MBX_READ_LNK_STAT:
2353 case MBX_UNREG_LOGIN:
2355 case MBX_DUMP_MEMORY:
2356 case MBX_DUMP_CONTEXT:
2359 case MBX_UPDATE_CFG:
2361 case MBX_DEL_LD_ENTRY:
2362 case MBX_RUN_PROGRAM:
2364 case MBX_SET_VARIABLE:
2365 case MBX_UNREG_D_ID:
2366 case MBX_KILL_BOARD:
2367 case MBX_CONFIG_FARP:
2370 case MBX_RUN_BIU_DIAG64:
2371 case MBX_CONFIG_PORT:
2372 case MBX_READ_SPARM64:
2373 case MBX_READ_RPI64:
2374 case MBX_REG_LOGIN64:
2375 case MBX_READ_TOPOLOGY:
2378 case MBX_LOAD_EXP_ROM:
2379 case MBX_ASYNCEVT_ENABLE:
2383 case MBX_PORT_CAPABILITIES:
2384 case MBX_PORT_IOV_CONTROL:
2385 case MBX_SLI4_CONFIG:
2386 case MBX_SLI4_REQ_FTRS:
2388 case MBX_UNREG_FCFI:
2393 case MBX_RESUME_RPI:
2394 case MBX_READ_EVENT_LOG_STATUS:
2395 case MBX_READ_EVENT_LOG:
2396 case MBX_SECURITY_MGMT:
2398 case MBX_ACCESS_VDATA:
2409 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2410 * @phba: Pointer to HBA context object.
2411 * @pmboxq: Pointer to mailbox command.
2413 * This is completion handler function for mailbox commands issued from
2414 * lpfc_sli_issue_mbox_wait function. This function is called by the
2415 * mailbox event handler function with no lock held. This function
2416 * will wake up thread waiting on the wait queue pointed by context1
2420 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2422 unsigned long drvr_flag;
2423 struct completion *pmbox_done;
2426 * If pmbox_done is empty, the driver thread gave up waiting and
2427 * continued running.
2429 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2430 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2431 pmbox_done = (struct completion *)pmboxq->context3;
2433 complete(pmbox_done);
2434 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2440 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2441 * @phba: Pointer to HBA context object.
2442 * @pmb: Pointer to mailbox object.
2444 * This function is the default mailbox completion handler. It
2445 * frees the memory resources associated with the completed mailbox
2446 * command. If the completed command is a REG_LOGIN mailbox command,
2447 * this function will issue a UREG_LOGIN to re-claim the RPI.
2450 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2452 struct lpfc_vport *vport = pmb->vport;
2453 struct lpfc_dmabuf *mp;
2454 struct lpfc_nodelist *ndlp;
2455 struct Scsi_Host *shost;
2459 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
2462 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2467 * If a REG_LOGIN succeeded after node is destroyed or node
2468 * is in re-discovery driver need to cleanup the RPI.
2470 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2471 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2472 !pmb->u.mb.mbxStatus) {
2473 rpi = pmb->u.mb.un.varWords[0];
2474 vpi = pmb->u.mb.un.varRegLogin.vpi;
2475 lpfc_unreg_login(phba, vpi, rpi, pmb);
2477 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2478 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2479 if (rc != MBX_NOT_FINISHED)
2483 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2484 !(phba->pport->load_flag & FC_UNLOADING) &&
2485 !pmb->u.mb.mbxStatus) {
2486 shost = lpfc_shost_from_vport(vport);
2487 spin_lock_irq(shost->host_lock);
2488 vport->vpi_state |= LPFC_VPI_REGISTERED;
2489 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2490 spin_unlock_irq(shost->host_lock);
2493 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2494 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2496 pmb->ctx_buf = NULL;
2497 pmb->ctx_ndlp = NULL;
2500 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2501 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2503 /* Check to see if there are any deferred events to process */
2507 KERN_INFO, LOG_MBOX | LOG_DISCOVERY,
2508 "1438 UNREG cmpl deferred mbox x%x "
2509 "on NPort x%x Data: x%x x%x %p\n",
2510 ndlp->nlp_rpi, ndlp->nlp_DID,
2511 ndlp->nlp_flag, ndlp->nlp_defer_did, ndlp);
2513 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2514 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
2515 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2516 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
2517 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2519 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2522 pmb->ctx_ndlp = NULL;
2525 /* Check security permission status on INIT_LINK mailbox command */
2526 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2527 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2528 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2529 "2860 SLI authentication is required "
2530 "for INIT_LINK but has not done yet\n");
2532 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2533 lpfc_sli4_mbox_cmd_free(phba, pmb);
2535 mempool_free(pmb, phba->mbox_mem_pool);
2538 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2539 * @phba: Pointer to HBA context object.
2540 * @pmb: Pointer to mailbox object.
2542 * This function is the unreg rpi mailbox completion handler. It
2543 * frees the memory resources associated with the completed mailbox
2544 * command. An additional refrenece is put on the ndlp to prevent
2545 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2546 * the unreg mailbox command completes, this routine puts the
2551 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2553 struct lpfc_vport *vport = pmb->vport;
2554 struct lpfc_nodelist *ndlp;
2556 ndlp = pmb->ctx_ndlp;
2557 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2558 if (phba->sli_rev == LPFC_SLI_REV4 &&
2559 (bf_get(lpfc_sli_intf_if_type,
2560 &phba->sli4_hba.sli_intf) >=
2561 LPFC_SLI_INTF_IF_TYPE_2)) {
2564 vport, KERN_INFO, LOG_MBOX | LOG_SLI,
2565 "0010 UNREG_LOGIN vpi:%x "
2566 "rpi:%x DID:%x defer x%x flg x%x "
2568 vport->vpi, ndlp->nlp_rpi,
2569 ndlp->nlp_DID, ndlp->nlp_defer_did,
2571 ndlp->nlp_usg_map, ndlp);
2572 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2575 /* Check to see if there are any deferred
2578 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2579 (ndlp->nlp_defer_did !=
2580 NLP_EVT_NOTHING_PENDING)) {
2582 vport, KERN_INFO, LOG_DISCOVERY,
2583 "4111 UNREG cmpl deferred "
2585 "NPort x%x Data: x%x %p\n",
2586 ndlp->nlp_rpi, ndlp->nlp_DID,
2587 ndlp->nlp_defer_did, ndlp);
2588 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2589 ndlp->nlp_defer_did =
2590 NLP_EVT_NOTHING_PENDING;
2591 lpfc_issue_els_plogi(
2592 vport, ndlp->nlp_DID, 0);
2594 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2600 mempool_free(pmb, phba->mbox_mem_pool);
2604 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2605 * @phba: Pointer to HBA context object.
2607 * This function is called with no lock held. This function processes all
2608 * the completed mailbox commands and gives it to upper layers. The interrupt
2609 * service routine processes mailbox completion interrupt and adds completed
2610 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2611 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2612 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2613 * function returns the mailbox commands to the upper layer by calling the
2614 * completion handler function of each mailbox.
2617 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2624 phba->sli.slistat.mbox_event++;
2626 /* Get all completed mailboxe buffers into the cmplq */
2627 spin_lock_irq(&phba->hbalock);
2628 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2629 spin_unlock_irq(&phba->hbalock);
2631 /* Get a Mailbox buffer to setup mailbox commands for callback */
2633 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2639 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2641 lpfc_debugfs_disc_trc(pmb->vport,
2642 LPFC_DISC_TRC_MBOX_VPORT,
2643 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2644 (uint32_t)pmbox->mbxCommand,
2645 pmbox->un.varWords[0],
2646 pmbox->un.varWords[1]);
2649 lpfc_debugfs_disc_trc(phba->pport,
2651 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2652 (uint32_t)pmbox->mbxCommand,
2653 pmbox->un.varWords[0],
2654 pmbox->un.varWords[1]);
2659 * It is a fatal error if unknown mbox command completion.
2661 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2663 /* Unknown mailbox command compl */
2664 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2665 "(%d):0323 Unknown Mailbox command "
2666 "x%x (x%x/x%x) Cmpl\n",
2667 pmb->vport ? pmb->vport->vpi : 0,
2669 lpfc_sli_config_mbox_subsys_get(phba,
2671 lpfc_sli_config_mbox_opcode_get(phba,
2673 phba->link_state = LPFC_HBA_ERROR;
2674 phba->work_hs = HS_FFER3;
2675 lpfc_handle_eratt(phba);
2679 if (pmbox->mbxStatus) {
2680 phba->sli.slistat.mbox_stat_err++;
2681 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2682 /* Mbox cmd cmpl error - RETRYing */
2683 lpfc_printf_log(phba, KERN_INFO,
2685 "(%d):0305 Mbox cmd cmpl "
2686 "error - RETRYing Data: x%x "
2687 "(x%x/x%x) x%x x%x x%x\n",
2688 pmb->vport ? pmb->vport->vpi : 0,
2690 lpfc_sli_config_mbox_subsys_get(phba,
2692 lpfc_sli_config_mbox_opcode_get(phba,
2695 pmbox->un.varWords[0],
2696 pmb->vport->port_state);
2697 pmbox->mbxStatus = 0;
2698 pmbox->mbxOwner = OWN_HOST;
2699 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2700 if (rc != MBX_NOT_FINISHED)
2705 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2706 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2707 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2708 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2710 pmb->vport ? pmb->vport->vpi : 0,
2712 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2713 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2715 *((uint32_t *) pmbox),
2716 pmbox->un.varWords[0],
2717 pmbox->un.varWords[1],
2718 pmbox->un.varWords[2],
2719 pmbox->un.varWords[3],
2720 pmbox->un.varWords[4],
2721 pmbox->un.varWords[5],
2722 pmbox->un.varWords[6],
2723 pmbox->un.varWords[7],
2724 pmbox->un.varWords[8],
2725 pmbox->un.varWords[9],
2726 pmbox->un.varWords[10]);
2729 pmb->mbox_cmpl(phba,pmb);
2735 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2736 * @phba: Pointer to HBA context object.
2737 * @pring: Pointer to driver SLI ring object.
2740 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2741 * is set in the tag the buffer is posted for a particular exchange,
2742 * the function will return the buffer without replacing the buffer.
2743 * If the buffer is for unsolicited ELS or CT traffic, this function
2744 * returns the buffer and also posts another buffer to the firmware.
2746 static struct lpfc_dmabuf *
2747 lpfc_sli_get_buff(struct lpfc_hba *phba,
2748 struct lpfc_sli_ring *pring,
2751 struct hbq_dmabuf *hbq_entry;
2753 if (tag & QUE_BUFTAG_BIT)
2754 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2755 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2758 return &hbq_entry->dbuf;
2762 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2763 * @phba: Pointer to HBA context object.
2764 * @pring: Pointer to driver SLI ring object.
2765 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2766 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2767 * @fch_type: the type for the first frame of the sequence.
2769 * This function is called with no lock held. This function uses the r_ctl and
2770 * type of the received sequence to find the correct callback function to call
2771 * to process the sequence.
2774 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2775 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2782 lpfc_nvmet_unsol_ls_event(phba, pring, saveq);
2788 /* unSolicited Responses */
2789 if (pring->prt[0].profile) {
2790 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2791 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2795 /* We must search, based on rctl / type
2796 for the right routine */
2797 for (i = 0; i < pring->num_mask; i++) {
2798 if ((pring->prt[i].rctl == fch_r_ctl) &&
2799 (pring->prt[i].type == fch_type)) {
2800 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2801 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2802 (phba, pring, saveq);
2810 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2811 * @phba: Pointer to HBA context object.
2812 * @pring: Pointer to driver SLI ring object.
2813 * @saveq: Pointer to the unsolicited iocb.
2815 * This function is called with no lock held by the ring event handler
2816 * when there is an unsolicited iocb posted to the response ring by the
2817 * firmware. This function gets the buffer associated with the iocbs
2818 * and calls the event handler for the ring. This function handles both
2819 * qring buffers and hbq buffers.
2820 * When the function returns 1 the caller can free the iocb object otherwise
2821 * upper layer functions will free the iocb objects.
2824 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2825 struct lpfc_iocbq *saveq)
2829 uint32_t Rctl, Type;
2830 struct lpfc_iocbq *iocbq;
2831 struct lpfc_dmabuf *dmzbuf;
2833 irsp = &(saveq->iocb);
2835 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2836 if (pring->lpfc_sli_rcv_async_status)
2837 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2839 lpfc_printf_log(phba,
2842 "0316 Ring %d handler: unexpected "
2843 "ASYNC_STATUS iocb received evt_code "
2846 irsp->un.asyncstat.evt_code);
2850 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2851 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2852 if (irsp->ulpBdeCount > 0) {
2853 dmzbuf = lpfc_sli_get_buff(phba, pring,
2854 irsp->un.ulpWord[3]);
2855 lpfc_in_buf_free(phba, dmzbuf);
2858 if (irsp->ulpBdeCount > 1) {
2859 dmzbuf = lpfc_sli_get_buff(phba, pring,
2860 irsp->unsli3.sli3Words[3]);
2861 lpfc_in_buf_free(phba, dmzbuf);
2864 if (irsp->ulpBdeCount > 2) {
2865 dmzbuf = lpfc_sli_get_buff(phba, pring,
2866 irsp->unsli3.sli3Words[7]);
2867 lpfc_in_buf_free(phba, dmzbuf);
2873 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2874 if (irsp->ulpBdeCount != 0) {
2875 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2876 irsp->un.ulpWord[3]);
2877 if (!saveq->context2)
2878 lpfc_printf_log(phba,
2881 "0341 Ring %d Cannot find buffer for "
2882 "an unsolicited iocb. tag 0x%x\n",
2884 irsp->un.ulpWord[3]);
2886 if (irsp->ulpBdeCount == 2) {
2887 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2888 irsp->unsli3.sli3Words[7]);
2889 if (!saveq->context3)
2890 lpfc_printf_log(phba,
2893 "0342 Ring %d Cannot find buffer for an"
2894 " unsolicited iocb. tag 0x%x\n",
2896 irsp->unsli3.sli3Words[7]);
2898 list_for_each_entry(iocbq, &saveq->list, list) {
2899 irsp = &(iocbq->iocb);
2900 if (irsp->ulpBdeCount != 0) {
2901 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2902 irsp->un.ulpWord[3]);
2903 if (!iocbq->context2)
2904 lpfc_printf_log(phba,
2907 "0343 Ring %d Cannot find "
2908 "buffer for an unsolicited iocb"
2909 ". tag 0x%x\n", pring->ringno,
2910 irsp->un.ulpWord[3]);
2912 if (irsp->ulpBdeCount == 2) {
2913 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2914 irsp->unsli3.sli3Words[7]);
2915 if (!iocbq->context3)
2916 lpfc_printf_log(phba,
2919 "0344 Ring %d Cannot find "
2920 "buffer for an unsolicited "
2923 irsp->unsli3.sli3Words[7]);
2927 if (irsp->ulpBdeCount != 0 &&
2928 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2929 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2932 /* search continue save q for same XRI */
2933 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2934 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2935 saveq->iocb.unsli3.rcvsli3.ox_id) {
2936 list_add_tail(&saveq->list, &iocbq->list);
2942 list_add_tail(&saveq->clist,
2943 &pring->iocb_continue_saveq);
2944 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2945 list_del_init(&iocbq->clist);
2947 irsp = &(saveq->iocb);
2951 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2952 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2953 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2954 Rctl = FC_RCTL_ELS_REQ;
2957 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2958 Rctl = w5p->hcsw.Rctl;
2959 Type = w5p->hcsw.Type;
2961 /* Firmware Workaround */
2962 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2963 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2964 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2965 Rctl = FC_RCTL_ELS_REQ;
2967 w5p->hcsw.Rctl = Rctl;
2968 w5p->hcsw.Type = Type;
2972 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2973 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2974 "0313 Ring %d handler: unexpected Rctl x%x "
2975 "Type x%x received\n",
2976 pring->ringno, Rctl, Type);
2982 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2983 * @phba: Pointer to HBA context object.
2984 * @pring: Pointer to driver SLI ring object.
2985 * @prspiocb: Pointer to response iocb object.
2987 * This function looks up the iocb_lookup table to get the command iocb
2988 * corresponding to the given response iocb using the iotag of the
2989 * response iocb. This function is called with the hbalock held
2990 * for sli3 devices or the ring_lock for sli4 devices.
2991 * This function returns the command iocb object if it finds the command
2992 * iocb else returns NULL.
2994 static struct lpfc_iocbq *
2995 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2996 struct lpfc_sli_ring *pring,
2997 struct lpfc_iocbq *prspiocb)
2999 struct lpfc_iocbq *cmd_iocb = NULL;
3001 lockdep_assert_held(&phba->hbalock);
3003 iotag = prspiocb->iocb.ulpIoTag;
3005 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3006 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3007 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3008 /* remove from txcmpl queue list */
3009 list_del_init(&cmd_iocb->list);
3010 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3015 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3016 "0317 iotag x%x is out of "
3017 "range: max iotag x%x wd0 x%x\n",
3018 iotag, phba->sli.last_iotag,
3019 *(((uint32_t *) &prspiocb->iocb) + 7));
3024 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
3025 * @phba: Pointer to HBA context object.
3026 * @pring: Pointer to driver SLI ring object.
3029 * This function looks up the iocb_lookup table to get the command iocb
3030 * corresponding to the given iotag. This function is called with the
3032 * This function returns the command iocb object if it finds the command
3033 * iocb else returns NULL.
3035 static struct lpfc_iocbq *
3036 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
3037 struct lpfc_sli_ring *pring, uint16_t iotag)
3039 struct lpfc_iocbq *cmd_iocb = NULL;
3041 lockdep_assert_held(&phba->hbalock);
3042 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3043 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3044 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3045 /* remove from txcmpl queue list */
3046 list_del_init(&cmd_iocb->list);
3047 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3052 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3053 "0372 iotag x%x lookup error: max iotag (x%x) "
3055 iotag, phba->sli.last_iotag,
3056 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
3061 * lpfc_sli_process_sol_iocb - process solicited iocb completion
3062 * @phba: Pointer to HBA context object.
3063 * @pring: Pointer to driver SLI ring object.
3064 * @saveq: Pointer to the response iocb to be processed.
3066 * This function is called by the ring event handler for non-fcp
3067 * rings when there is a new response iocb in the response ring.
3068 * The caller is not required to hold any locks. This function
3069 * gets the command iocb associated with the response iocb and
3070 * calls the completion handler for the command iocb. If there
3071 * is no completion handler, the function will free the resources
3072 * associated with command iocb. If the response iocb is for
3073 * an already aborted command iocb, the status of the completion
3074 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
3075 * This function always returns 1.
3078 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3079 struct lpfc_iocbq *saveq)
3081 struct lpfc_iocbq *cmdiocbp;
3083 unsigned long iflag;
3085 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
3086 if (phba->sli_rev == LPFC_SLI_REV4)
3087 spin_lock_irqsave(&pring->ring_lock, iflag);
3089 spin_lock_irqsave(&phba->hbalock, iflag);
3090 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
3091 if (phba->sli_rev == LPFC_SLI_REV4)
3092 spin_unlock_irqrestore(&pring->ring_lock, iflag);
3094 spin_unlock_irqrestore(&phba->hbalock, iflag);
3097 if (cmdiocbp->iocb_cmpl) {
3099 * If an ELS command failed send an event to mgmt
3102 if (saveq->iocb.ulpStatus &&
3103 (pring->ringno == LPFC_ELS_RING) &&
3104 (cmdiocbp->iocb.ulpCommand ==
3105 CMD_ELS_REQUEST64_CR))
3106 lpfc_send_els_failure_event(phba,
3110 * Post all ELS completions to the worker thread.
3111 * All other are passed to the completion callback.
3113 if (pring->ringno == LPFC_ELS_RING) {
3114 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3115 (cmdiocbp->iocb_flag &
3116 LPFC_DRIVER_ABORTED)) {
3117 spin_lock_irqsave(&phba->hbalock,
3119 cmdiocbp->iocb_flag &=
3120 ~LPFC_DRIVER_ABORTED;
3121 spin_unlock_irqrestore(&phba->hbalock,
3123 saveq->iocb.ulpStatus =
3124 IOSTAT_LOCAL_REJECT;
3125 saveq->iocb.un.ulpWord[4] =
3128 /* Firmware could still be in progress
3129 * of DMAing payload, so don't free data
3130 * buffer till after a hbeat.
3132 spin_lock_irqsave(&phba->hbalock,
3134 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
3135 spin_unlock_irqrestore(&phba->hbalock,
3138 if (phba->sli_rev == LPFC_SLI_REV4) {
3139 if (saveq->iocb_flag &
3140 LPFC_EXCHANGE_BUSY) {
3141 /* Set cmdiocb flag for the
3142 * exchange busy so sgl (xri)
3143 * will not be released until
3144 * the abort xri is received
3148 &phba->hbalock, iflag);
3149 cmdiocbp->iocb_flag |=
3151 spin_unlock_irqrestore(
3152 &phba->hbalock, iflag);
3154 if (cmdiocbp->iocb_flag &
3155 LPFC_DRIVER_ABORTED) {
3157 * Clear LPFC_DRIVER_ABORTED
3158 * bit in case it was driver
3162 &phba->hbalock, iflag);
3163 cmdiocbp->iocb_flag &=
3164 ~LPFC_DRIVER_ABORTED;
3165 spin_unlock_irqrestore(
3166 &phba->hbalock, iflag);
3167 cmdiocbp->iocb.ulpStatus =
3168 IOSTAT_LOCAL_REJECT;
3169 cmdiocbp->iocb.un.ulpWord[4] =
3170 IOERR_ABORT_REQUESTED;
3172 * For SLI4, irsiocb contains
3173 * NO_XRI in sli_xritag, it
3174 * shall not affect releasing
3175 * sgl (xri) process.
3177 saveq->iocb.ulpStatus =
3178 IOSTAT_LOCAL_REJECT;
3179 saveq->iocb.un.ulpWord[4] =
3182 &phba->hbalock, iflag);
3184 LPFC_DELAY_MEM_FREE;
3185 spin_unlock_irqrestore(
3186 &phba->hbalock, iflag);
3190 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
3192 lpfc_sli_release_iocbq(phba, cmdiocbp);
3195 * Unknown initiating command based on the response iotag.
3196 * This could be the case on the ELS ring because of
3199 if (pring->ringno != LPFC_ELS_RING) {
3201 * Ring <ringno> handler: unexpected completion IoTag
3204 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3205 "0322 Ring %d handler: "
3206 "unexpected completion IoTag x%x "
3207 "Data: x%x x%x x%x x%x\n",
3209 saveq->iocb.ulpIoTag,
3210 saveq->iocb.ulpStatus,
3211 saveq->iocb.un.ulpWord[4],
3212 saveq->iocb.ulpCommand,
3213 saveq->iocb.ulpContext);
3221 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
3222 * @phba: Pointer to HBA context object.
3223 * @pring: Pointer to driver SLI ring object.
3225 * This function is called from the iocb ring event handlers when
3226 * put pointer is ahead of the get pointer for a ring. This function signal
3227 * an error attention condition to the worker thread and the worker
3228 * thread will transition the HBA to offline state.
3231 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3233 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3235 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3236 * rsp ring <portRspMax>
3238 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3239 "0312 Ring %d handler: portRspPut %d "
3240 "is bigger than rsp ring %d\n",
3241 pring->ringno, le32_to_cpu(pgp->rspPutInx),
3242 pring->sli.sli3.numRiocb);
3244 phba->link_state = LPFC_HBA_ERROR;
3247 * All error attention handlers are posted to
3250 phba->work_ha |= HA_ERATT;
3251 phba->work_hs = HS_FFER3;
3253 lpfc_worker_wake_up(phba);
3259 * lpfc_poll_eratt - Error attention polling timer timeout handler
3260 * @ptr: Pointer to address of HBA context object.
3262 * This function is invoked by the Error Attention polling timer when the
3263 * timer times out. It will check the SLI Error Attention register for
3264 * possible attention events. If so, it will post an Error Attention event
3265 * and wake up worker thread to process it. Otherwise, it will set up the
3266 * Error Attention polling timer for the next poll.
3268 void lpfc_poll_eratt(struct timer_list *t)
3270 struct lpfc_hba *phba;
3272 uint64_t sli_intr, cnt;
3274 phba = from_timer(phba, t, eratt_poll);
3276 /* Here we will also keep track of interrupts per sec of the hba */
3277 sli_intr = phba->sli.slistat.sli_intr;
3279 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3280 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3283 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3285 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3286 do_div(cnt, phba->eratt_poll_interval);
3287 phba->sli.slistat.sli_ips = cnt;
3289 phba->sli.slistat.sli_prev_intr = sli_intr;
3291 /* Check chip HA register for error event */
3292 eratt = lpfc_sli_check_eratt(phba);
3295 /* Tell the worker thread there is work to do */
3296 lpfc_worker_wake_up(phba);
3298 /* Restart the timer for next eratt poll */
3299 mod_timer(&phba->eratt_poll,
3301 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3307 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3308 * @phba: Pointer to HBA context object.
3309 * @pring: Pointer to driver SLI ring object.
3310 * @mask: Host attention register mask for this ring.
3312 * This function is called from the interrupt context when there is a ring
3313 * event for the fcp ring. The caller does not hold any lock.
3314 * The function processes each response iocb in the response ring until it
3315 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3316 * LE bit set. The function will call the completion handler of the command iocb
3317 * if the response iocb indicates a completion for a command iocb or it is
3318 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3319 * function if this is an unsolicited iocb.
3320 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3321 * to check it explicitly.
3324 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3325 struct lpfc_sli_ring *pring, uint32_t mask)
3327 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3328 IOCB_t *irsp = NULL;
3329 IOCB_t *entry = NULL;
3330 struct lpfc_iocbq *cmdiocbq = NULL;
3331 struct lpfc_iocbq rspiocbq;
3333 uint32_t portRspPut, portRspMax;
3335 lpfc_iocb_type type;
3336 unsigned long iflag;
3337 uint32_t rsp_cmpl = 0;
3339 spin_lock_irqsave(&phba->hbalock, iflag);
3340 pring->stats.iocb_event++;
3343 * The next available response entry should never exceed the maximum
3344 * entries. If it does, treat it as an adapter hardware error.
3346 portRspMax = pring->sli.sli3.numRiocb;
3347 portRspPut = le32_to_cpu(pgp->rspPutInx);
3348 if (unlikely(portRspPut >= portRspMax)) {
3349 lpfc_sli_rsp_pointers_error(phba, pring);
3350 spin_unlock_irqrestore(&phba->hbalock, iflag);
3353 if (phba->fcp_ring_in_use) {
3354 spin_unlock_irqrestore(&phba->hbalock, iflag);
3357 phba->fcp_ring_in_use = 1;
3360 while (pring->sli.sli3.rspidx != portRspPut) {
3362 * Fetch an entry off the ring and copy it into a local data
3363 * structure. The copy involves a byte-swap since the
3364 * network byte order and pci byte orders are different.
3366 entry = lpfc_resp_iocb(phba, pring);
3367 phba->last_completion_time = jiffies;
3369 if (++pring->sli.sli3.rspidx >= portRspMax)
3370 pring->sli.sli3.rspidx = 0;
3372 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3373 (uint32_t *) &rspiocbq.iocb,
3374 phba->iocb_rsp_size);
3375 INIT_LIST_HEAD(&(rspiocbq.list));
3376 irsp = &rspiocbq.iocb;
3378 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3379 pring->stats.iocb_rsp++;
3382 if (unlikely(irsp->ulpStatus)) {
3384 * If resource errors reported from HBA, reduce
3385 * queuedepths of the SCSI device.
3387 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3388 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3389 IOERR_NO_RESOURCES)) {
3390 spin_unlock_irqrestore(&phba->hbalock, iflag);
3391 phba->lpfc_rampdown_queue_depth(phba);
3392 spin_lock_irqsave(&phba->hbalock, iflag);
3395 /* Rsp ring <ringno> error: IOCB */
3396 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3397 "0336 Rsp Ring %d error: IOCB Data: "
3398 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3400 irsp->un.ulpWord[0],
3401 irsp->un.ulpWord[1],
3402 irsp->un.ulpWord[2],
3403 irsp->un.ulpWord[3],
3404 irsp->un.ulpWord[4],
3405 irsp->un.ulpWord[5],
3406 *(uint32_t *)&irsp->un1,
3407 *((uint32_t *)&irsp->un1 + 1));
3411 case LPFC_ABORT_IOCB:
3414 * Idle exchange closed via ABTS from port. No iocb
3415 * resources need to be recovered.
3417 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3418 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3419 "0333 IOCB cmd 0x%x"
3420 " processed. Skipping"
3426 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3428 if (unlikely(!cmdiocbq))
3430 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3431 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3432 if (cmdiocbq->iocb_cmpl) {
3433 spin_unlock_irqrestore(&phba->hbalock, iflag);
3434 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3436 spin_lock_irqsave(&phba->hbalock, iflag);
3439 case LPFC_UNSOL_IOCB:
3440 spin_unlock_irqrestore(&phba->hbalock, iflag);
3441 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3442 spin_lock_irqsave(&phba->hbalock, iflag);
3445 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3446 char adaptermsg[LPFC_MAX_ADPTMSG];
3447 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3448 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3450 dev_warn(&((phba->pcidev)->dev),
3452 phba->brd_no, adaptermsg);
3454 /* Unknown IOCB command */
3455 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3456 "0334 Unknown IOCB command "
3457 "Data: x%x, x%x x%x x%x x%x\n",
3458 type, irsp->ulpCommand,
3467 * The response IOCB has been processed. Update the ring
3468 * pointer in SLIM. If the port response put pointer has not
3469 * been updated, sync the pgp->rspPutInx and fetch the new port
3470 * response put pointer.
3472 writel(pring->sli.sli3.rspidx,
3473 &phba->host_gp[pring->ringno].rspGetInx);
3475 if (pring->sli.sli3.rspidx == portRspPut)
3476 portRspPut = le32_to_cpu(pgp->rspPutInx);
3479 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3480 pring->stats.iocb_rsp_full++;
3481 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3482 writel(status, phba->CAregaddr);
3483 readl(phba->CAregaddr);
3485 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3486 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3487 pring->stats.iocb_cmd_empty++;
3489 /* Force update of the local copy of cmdGetInx */
3490 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3491 lpfc_sli_resume_iocb(phba, pring);
3493 if ((pring->lpfc_sli_cmd_available))
3494 (pring->lpfc_sli_cmd_available) (phba, pring);
3498 phba->fcp_ring_in_use = 0;
3499 spin_unlock_irqrestore(&phba->hbalock, iflag);
3504 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3505 * @phba: Pointer to HBA context object.
3506 * @pring: Pointer to driver SLI ring object.
3507 * @rspiocbp: Pointer to driver response IOCB object.
3509 * This function is called from the worker thread when there is a slow-path
3510 * response IOCB to process. This function chains all the response iocbs until
3511 * seeing the iocb with the LE bit set. The function will call
3512 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3513 * completion of a command iocb. The function will call the
3514 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3515 * The function frees the resources or calls the completion handler if this
3516 * iocb is an abort completion. The function returns NULL when the response
3517 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3518 * this function shall chain the iocb on to the iocb_continueq and return the
3519 * response iocb passed in.
3521 static struct lpfc_iocbq *
3522 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3523 struct lpfc_iocbq *rspiocbp)
3525 struct lpfc_iocbq *saveq;
3526 struct lpfc_iocbq *cmdiocbp;
3527 struct lpfc_iocbq *next_iocb;
3528 IOCB_t *irsp = NULL;
3529 uint32_t free_saveq;
3530 uint8_t iocb_cmd_type;
3531 lpfc_iocb_type type;
3532 unsigned long iflag;
3535 spin_lock_irqsave(&phba->hbalock, iflag);
3536 /* First add the response iocb to the countinueq list */
3537 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3538 pring->iocb_continueq_cnt++;
3540 /* Now, determine whether the list is completed for processing */
3541 irsp = &rspiocbp->iocb;
3544 * By default, the driver expects to free all resources
3545 * associated with this iocb completion.
3548 saveq = list_get_first(&pring->iocb_continueq,
3549 struct lpfc_iocbq, list);
3550 irsp = &(saveq->iocb);
3551 list_del_init(&pring->iocb_continueq);
3552 pring->iocb_continueq_cnt = 0;
3554 pring->stats.iocb_rsp++;
3557 * If resource errors reported from HBA, reduce
3558 * queuedepths of the SCSI device.
3560 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3561 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3562 IOERR_NO_RESOURCES)) {
3563 spin_unlock_irqrestore(&phba->hbalock, iflag);
3564 phba->lpfc_rampdown_queue_depth(phba);
3565 spin_lock_irqsave(&phba->hbalock, iflag);
3568 if (irsp->ulpStatus) {
3569 /* Rsp ring <ringno> error: IOCB */
3570 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3571 "0328 Rsp Ring %d error: "
3576 "x%x x%x x%x x%x\n",
3578 irsp->un.ulpWord[0],
3579 irsp->un.ulpWord[1],
3580 irsp->un.ulpWord[2],
3581 irsp->un.ulpWord[3],
3582 irsp->un.ulpWord[4],
3583 irsp->un.ulpWord[5],
3584 *(((uint32_t *) irsp) + 6),
3585 *(((uint32_t *) irsp) + 7),
3586 *(((uint32_t *) irsp) + 8),
3587 *(((uint32_t *) irsp) + 9),
3588 *(((uint32_t *) irsp) + 10),
3589 *(((uint32_t *) irsp) + 11),
3590 *(((uint32_t *) irsp) + 12),
3591 *(((uint32_t *) irsp) + 13),
3592 *(((uint32_t *) irsp) + 14),
3593 *(((uint32_t *) irsp) + 15));
3597 * Fetch the IOCB command type and call the correct completion
3598 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3599 * get freed back to the lpfc_iocb_list by the discovery
3602 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3603 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3606 spin_unlock_irqrestore(&phba->hbalock, iflag);
3607 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3608 spin_lock_irqsave(&phba->hbalock, iflag);
3611 case LPFC_UNSOL_IOCB:
3612 spin_unlock_irqrestore(&phba->hbalock, iflag);
3613 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3614 spin_lock_irqsave(&phba->hbalock, iflag);
3619 case LPFC_ABORT_IOCB:
3621 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3622 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3625 /* Call the specified completion routine */
3626 if (cmdiocbp->iocb_cmpl) {
3627 spin_unlock_irqrestore(&phba->hbalock,
3629 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3631 spin_lock_irqsave(&phba->hbalock,
3634 __lpfc_sli_release_iocbq(phba,
3639 case LPFC_UNKNOWN_IOCB:
3640 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3641 char adaptermsg[LPFC_MAX_ADPTMSG];
3642 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3643 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3645 dev_warn(&((phba->pcidev)->dev),
3647 phba->brd_no, adaptermsg);
3649 /* Unknown IOCB command */
3650 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3651 "0335 Unknown IOCB "
3652 "command Data: x%x "
3663 list_for_each_entry_safe(rspiocbp, next_iocb,
3664 &saveq->list, list) {
3665 list_del_init(&rspiocbp->list);
3666 __lpfc_sli_release_iocbq(phba, rspiocbp);
3668 __lpfc_sli_release_iocbq(phba, saveq);
3672 spin_unlock_irqrestore(&phba->hbalock, iflag);
3677 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3678 * @phba: Pointer to HBA context object.
3679 * @pring: Pointer to driver SLI ring object.
3680 * @mask: Host attention register mask for this ring.
3682 * This routine wraps the actual slow_ring event process routine from the
3683 * API jump table function pointer from the lpfc_hba struct.
3686 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3687 struct lpfc_sli_ring *pring, uint32_t mask)
3689 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3693 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3694 * @phba: Pointer to HBA context object.
3695 * @pring: Pointer to driver SLI ring object.
3696 * @mask: Host attention register mask for this ring.
3698 * This function is called from the worker thread when there is a ring event
3699 * for non-fcp rings. The caller does not hold any lock. The function will
3700 * remove each response iocb in the response ring and calls the handle
3701 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3704 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3705 struct lpfc_sli_ring *pring, uint32_t mask)
3707 struct lpfc_pgp *pgp;
3709 IOCB_t *irsp = NULL;
3710 struct lpfc_iocbq *rspiocbp = NULL;
3711 uint32_t portRspPut, portRspMax;
3712 unsigned long iflag;
3715 pgp = &phba->port_gp[pring->ringno];
3716 spin_lock_irqsave(&phba->hbalock, iflag);
3717 pring->stats.iocb_event++;
3720 * The next available response entry should never exceed the maximum
3721 * entries. If it does, treat it as an adapter hardware error.
3723 portRspMax = pring->sli.sli3.numRiocb;
3724 portRspPut = le32_to_cpu(pgp->rspPutInx);
3725 if (portRspPut >= portRspMax) {
3727 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3728 * rsp ring <portRspMax>
3730 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3731 "0303 Ring %d handler: portRspPut %d "
3732 "is bigger than rsp ring %d\n",
3733 pring->ringno, portRspPut, portRspMax);
3735 phba->link_state = LPFC_HBA_ERROR;
3736 spin_unlock_irqrestore(&phba->hbalock, iflag);
3738 phba->work_hs = HS_FFER3;
3739 lpfc_handle_eratt(phba);
3745 while (pring->sli.sli3.rspidx != portRspPut) {
3747 * Build a completion list and call the appropriate handler.
3748 * The process is to get the next available response iocb, get
3749 * a free iocb from the list, copy the response data into the
3750 * free iocb, insert to the continuation list, and update the
3751 * next response index to slim. This process makes response
3752 * iocb's in the ring available to DMA as fast as possible but
3753 * pays a penalty for a copy operation. Since the iocb is
3754 * only 32 bytes, this penalty is considered small relative to
3755 * the PCI reads for register values and a slim write. When
3756 * the ulpLe field is set, the entire Command has been
3759 entry = lpfc_resp_iocb(phba, pring);
3761 phba->last_completion_time = jiffies;
3762 rspiocbp = __lpfc_sli_get_iocbq(phba);
3763 if (rspiocbp == NULL) {
3764 printk(KERN_ERR "%s: out of buffers! Failing "
3765 "completion.\n", __func__);
3769 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3770 phba->iocb_rsp_size);
3771 irsp = &rspiocbp->iocb;
3773 if (++pring->sli.sli3.rspidx >= portRspMax)
3774 pring->sli.sli3.rspidx = 0;
3776 if (pring->ringno == LPFC_ELS_RING) {
3777 lpfc_debugfs_slow_ring_trc(phba,
3778 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3779 *(((uint32_t *) irsp) + 4),
3780 *(((uint32_t *) irsp) + 6),
3781 *(((uint32_t *) irsp) + 7));
3784 writel(pring->sli.sli3.rspidx,
3785 &phba->host_gp[pring->ringno].rspGetInx);
3787 spin_unlock_irqrestore(&phba->hbalock, iflag);
3788 /* Handle the response IOCB */
3789 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3790 spin_lock_irqsave(&phba->hbalock, iflag);
3793 * If the port response put pointer has not been updated, sync
3794 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3795 * response put pointer.
3797 if (pring->sli.sli3.rspidx == portRspPut) {
3798 portRspPut = le32_to_cpu(pgp->rspPutInx);
3800 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3802 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3803 /* At least one response entry has been freed */
3804 pring->stats.iocb_rsp_full++;
3805 /* SET RxRE_RSP in Chip Att register */
3806 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3807 writel(status, phba->CAregaddr);
3808 readl(phba->CAregaddr); /* flush */
3810 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3811 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3812 pring->stats.iocb_cmd_empty++;
3814 /* Force update of the local copy of cmdGetInx */
3815 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3816 lpfc_sli_resume_iocb(phba, pring);
3818 if ((pring->lpfc_sli_cmd_available))
3819 (pring->lpfc_sli_cmd_available) (phba, pring);
3823 spin_unlock_irqrestore(&phba->hbalock, iflag);
3828 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3829 * @phba: Pointer to HBA context object.
3830 * @pring: Pointer to driver SLI ring object.
3831 * @mask: Host attention register mask for this ring.
3833 * This function is called from the worker thread when there is a pending
3834 * ELS response iocb on the driver internal slow-path response iocb worker
3835 * queue. The caller does not hold any lock. The function will remove each
3836 * response iocb from the response worker queue and calls the handle
3837 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3840 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3841 struct lpfc_sli_ring *pring, uint32_t mask)
3843 struct lpfc_iocbq *irspiocbq;
3844 struct hbq_dmabuf *dmabuf;
3845 struct lpfc_cq_event *cq_event;
3846 unsigned long iflag;
3849 spin_lock_irqsave(&phba->hbalock, iflag);
3850 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3851 spin_unlock_irqrestore(&phba->hbalock, iflag);
3852 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3853 /* Get the response iocb from the head of work queue */
3854 spin_lock_irqsave(&phba->hbalock, iflag);
3855 list_remove_head(&phba->sli4_hba.sp_queue_event,
3856 cq_event, struct lpfc_cq_event, list);
3857 spin_unlock_irqrestore(&phba->hbalock, iflag);
3859 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3860 case CQE_CODE_COMPL_WQE:
3861 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3863 /* Translate ELS WCQE to response IOCBQ */
3864 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3867 lpfc_sli_sp_handle_rspiocb(phba, pring,
3871 case CQE_CODE_RECEIVE:
3872 case CQE_CODE_RECEIVE_V1:
3873 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3875 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3882 /* Limit the number of events to 64 to avoid soft lockups */
3889 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3890 * @phba: Pointer to HBA context object.
3891 * @pring: Pointer to driver SLI ring object.
3893 * This function aborts all iocbs in the given ring and frees all the iocb
3894 * objects in txq. This function issues an abort iocb for all the iocb commands
3895 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3896 * the return of this function. The caller is not required to hold any locks.
3899 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3901 LIST_HEAD(completions);
3902 struct lpfc_iocbq *iocb, *next_iocb;
3904 if (pring->ringno == LPFC_ELS_RING) {
3905 lpfc_fabric_abort_hba(phba);
3908 /* Error everything on txq and txcmplq
3911 if (phba->sli_rev >= LPFC_SLI_REV4) {
3912 spin_lock_irq(&pring->ring_lock);
3913 list_splice_init(&pring->txq, &completions);
3915 spin_unlock_irq(&pring->ring_lock);
3917 spin_lock_irq(&phba->hbalock);
3918 /* Next issue ABTS for everything on the txcmplq */
3919 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3920 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3921 spin_unlock_irq(&phba->hbalock);
3923 spin_lock_irq(&phba->hbalock);
3924 list_splice_init(&pring->txq, &completions);
3927 /* Next issue ABTS for everything on the txcmplq */
3928 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3929 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3930 spin_unlock_irq(&phba->hbalock);
3933 /* Cancel all the IOCBs from the completions list */
3934 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3939 * lpfc_sli_abort_wqe_ring - Abort all iocbs in the ring
3940 * @phba: Pointer to HBA context object.
3941 * @pring: Pointer to driver SLI ring object.
3943 * This function aborts all iocbs in the given ring and frees all the iocb
3944 * objects in txq. This function issues an abort iocb for all the iocb commands
3945 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3946 * the return of this function. The caller is not required to hold any locks.
3949 lpfc_sli_abort_wqe_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3951 LIST_HEAD(completions);
3952 struct lpfc_iocbq *iocb, *next_iocb;
3954 if (pring->ringno == LPFC_ELS_RING)
3955 lpfc_fabric_abort_hba(phba);
3957 spin_lock_irq(&phba->hbalock);
3958 /* Next issue ABTS for everything on the txcmplq */
3959 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3960 lpfc_sli4_abort_nvme_io(phba, pring, iocb);
3961 spin_unlock_irq(&phba->hbalock);
3966 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3967 * @phba: Pointer to HBA context object.
3968 * @pring: Pointer to driver SLI ring object.
3970 * This function aborts all iocbs in FCP rings and frees all the iocb
3971 * objects in txq. This function issues an abort iocb for all the iocb commands
3972 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3973 * the return of this function. The caller is not required to hold any locks.
3976 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3978 struct lpfc_sli *psli = &phba->sli;
3979 struct lpfc_sli_ring *pring;
3982 /* Look on all the FCP Rings for the iotag */
3983 if (phba->sli_rev >= LPFC_SLI_REV4) {
3984 for (i = 0; i < phba->cfg_hdw_queue; i++) {
3985 pring = phba->sli4_hba.hdwq[i].fcp_wq->pring;
3986 lpfc_sli_abort_iocb_ring(phba, pring);
3989 pring = &psli->sli3_ring[LPFC_FCP_RING];
3990 lpfc_sli_abort_iocb_ring(phba, pring);
3995 * lpfc_sli_abort_nvme_rings - Abort all wqes in all NVME rings
3996 * @phba: Pointer to HBA context object.
3998 * This function aborts all wqes in NVME rings. This function issues an
3999 * abort wqe for all the outstanding IO commands in txcmplq. The iocbs in
4000 * the txcmplq is not guaranteed to complete before the return of this
4001 * function. The caller is not required to hold any locks.
4004 lpfc_sli_abort_nvme_rings(struct lpfc_hba *phba)
4006 struct lpfc_sli_ring *pring;
4009 if ((phba->sli_rev < LPFC_SLI_REV4) ||
4010 !(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
4013 /* Abort all IO on each NVME ring. */
4014 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4015 pring = phba->sli4_hba.hdwq[i].nvme_wq->pring;
4016 lpfc_sli_abort_wqe_ring(phba, pring);
4022 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
4023 * @phba: Pointer to HBA context object.
4025 * This function flushes all iocbs in the fcp ring and frees all the iocb
4026 * objects in txq and txcmplq. This function will not issue abort iocbs
4027 * for all the iocb commands in txcmplq, they will just be returned with
4028 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
4029 * slot has been permanently disabled.
4032 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
4036 struct lpfc_sli *psli = &phba->sli;
4037 struct lpfc_sli_ring *pring;
4039 struct lpfc_iocbq *piocb, *next_iocb;
4041 spin_lock_irq(&phba->hbalock);
4042 /* Indicate the I/O queues are flushed */
4043 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
4044 spin_unlock_irq(&phba->hbalock);
4046 /* Look on all the FCP Rings for the iotag */
4047 if (phba->sli_rev >= LPFC_SLI_REV4) {
4048 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4049 pring = phba->sli4_hba.hdwq[i].fcp_wq->pring;
4051 spin_lock_irq(&pring->ring_lock);
4052 /* Retrieve everything on txq */
4053 list_splice_init(&pring->txq, &txq);
4054 list_for_each_entry_safe(piocb, next_iocb,
4055 &pring->txcmplq, list)
4056 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4057 /* Retrieve everything on the txcmplq */
4058 list_splice_init(&pring->txcmplq, &txcmplq);
4060 pring->txcmplq_cnt = 0;
4061 spin_unlock_irq(&pring->ring_lock);
4064 lpfc_sli_cancel_iocbs(phba, &txq,
4065 IOSTAT_LOCAL_REJECT,
4067 /* Flush the txcmpq */
4068 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4069 IOSTAT_LOCAL_REJECT,
4073 pring = &psli->sli3_ring[LPFC_FCP_RING];
4075 spin_lock_irq(&phba->hbalock);
4076 /* Retrieve everything on txq */
4077 list_splice_init(&pring->txq, &txq);
4078 list_for_each_entry_safe(piocb, next_iocb,
4079 &pring->txcmplq, list)
4080 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4081 /* Retrieve everything on the txcmplq */
4082 list_splice_init(&pring->txcmplq, &txcmplq);
4084 pring->txcmplq_cnt = 0;
4085 spin_unlock_irq(&phba->hbalock);
4088 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
4090 /* Flush the txcmpq */
4091 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
4097 * lpfc_sli_flush_nvme_rings - flush all wqes in the nvme rings
4098 * @phba: Pointer to HBA context object.
4100 * This function flushes all wqes in the nvme rings and frees all resources
4101 * in the txcmplq. This function does not issue abort wqes for the IO
4102 * commands in txcmplq, they will just be returned with
4103 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
4104 * slot has been permanently disabled.
4107 lpfc_sli_flush_nvme_rings(struct lpfc_hba *phba)
4110 struct lpfc_sli_ring *pring;
4112 struct lpfc_iocbq *piocb, *next_iocb;
4114 if ((phba->sli_rev < LPFC_SLI_REV4) ||
4115 !(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
4118 /* Hint to other driver operations that a flush is in progress. */
4119 spin_lock_irq(&phba->hbalock);
4120 phba->hba_flag |= HBA_NVME_IOQ_FLUSH;
4121 spin_unlock_irq(&phba->hbalock);
4123 /* Cycle through all NVME rings and complete each IO with
4124 * a local driver reason code. This is a flush so no
4125 * abort exchange to FW.
4127 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4128 pring = phba->sli4_hba.hdwq[i].nvme_wq->pring;
4130 spin_lock_irq(&pring->ring_lock);
4131 list_for_each_entry_safe(piocb, next_iocb,
4132 &pring->txcmplq, list)
4133 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4134 /* Retrieve everything on the txcmplq */
4135 list_splice_init(&pring->txcmplq, &txcmplq);
4136 pring->txcmplq_cnt = 0;
4137 spin_unlock_irq(&pring->ring_lock);
4139 /* Flush the txcmpq &&&PAE */
4140 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4141 IOSTAT_LOCAL_REJECT,
4147 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
4148 * @phba: Pointer to HBA context object.
4149 * @mask: Bit mask to be checked.
4151 * This function reads the host status register and compares
4152 * with the provided bit mask to check if HBA completed
4153 * the restart. This function will wait in a loop for the
4154 * HBA to complete restart. If the HBA does not restart within
4155 * 15 iterations, the function will reset the HBA again. The
4156 * function returns 1 when HBA fail to restart otherwise returns
4160 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
4166 /* Read the HBA Host Status Register */
4167 if (lpfc_readl(phba->HSregaddr, &status))
4171 * Check status register every 100ms for 5 retries, then every
4172 * 500ms for 5, then every 2.5 sec for 5, then reset board and
4173 * every 2.5 sec for 4.
4174 * Break our of the loop if errors occurred during init.
4176 while (((status & mask) != mask) &&
4177 !(status & HS_FFERM) &&
4189 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4190 lpfc_sli_brdrestart(phba);
4192 /* Read the HBA Host Status Register */
4193 if (lpfc_readl(phba->HSregaddr, &status)) {
4199 /* Check to see if any errors occurred during init */
4200 if ((status & HS_FFERM) || (i >= 20)) {
4201 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4202 "2751 Adapter failed to restart, "
4203 "status reg x%x, FW Data: A8 x%x AC x%x\n",
4205 readl(phba->MBslimaddr + 0xa8),
4206 readl(phba->MBslimaddr + 0xac));
4207 phba->link_state = LPFC_HBA_ERROR;
4215 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
4216 * @phba: Pointer to HBA context object.
4217 * @mask: Bit mask to be checked.
4219 * This function checks the host status register to check if HBA is
4220 * ready. This function will wait in a loop for the HBA to be ready
4221 * If the HBA is not ready , the function will will reset the HBA PCI
4222 * function again. The function returns 1 when HBA fail to be ready
4223 * otherwise returns zero.
4226 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
4231 /* Read the HBA Host Status Register */
4232 status = lpfc_sli4_post_status_check(phba);
4235 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4236 lpfc_sli_brdrestart(phba);
4237 status = lpfc_sli4_post_status_check(phba);
4240 /* Check to see if any errors occurred during init */
4242 phba->link_state = LPFC_HBA_ERROR;
4245 phba->sli4_hba.intr_enable = 0;
4251 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
4252 * @phba: Pointer to HBA context object.
4253 * @mask: Bit mask to be checked.
4255 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
4256 * from the API jump table function pointer from the lpfc_hba struct.
4259 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
4261 return phba->lpfc_sli_brdready(phba, mask);
4264 #define BARRIER_TEST_PATTERN (0xdeadbeef)
4267 * lpfc_reset_barrier - Make HBA ready for HBA reset
4268 * @phba: Pointer to HBA context object.
4270 * This function is called before resetting an HBA. This function is called
4271 * with hbalock held and requests HBA to quiesce DMAs before a reset.
4273 void lpfc_reset_barrier(struct lpfc_hba *phba)
4275 uint32_t __iomem *resp_buf;
4276 uint32_t __iomem *mbox_buf;
4277 volatile uint32_t mbox;
4278 uint32_t hc_copy, ha_copy, resp_data;
4282 lockdep_assert_held(&phba->hbalock);
4284 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4285 if (hdrtype != 0x80 ||
4286 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4287 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4291 * Tell the other part of the chip to suspend temporarily all
4294 resp_buf = phba->MBslimaddr;
4296 /* Disable the error attention */
4297 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4299 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4300 readl(phba->HCregaddr); /* flush */
4301 phba->link_flag |= LS_IGNORE_ERATT;
4303 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4305 if (ha_copy & HA_ERATT) {
4306 /* Clear Chip error bit */
4307 writel(HA_ERATT, phba->HAregaddr);
4308 phba->pport->stopped = 1;
4312 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4313 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4315 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4316 mbox_buf = phba->MBslimaddr;
4317 writel(mbox, mbox_buf);
4319 for (i = 0; i < 50; i++) {
4320 if (lpfc_readl((resp_buf + 1), &resp_data))
4322 if (resp_data != ~(BARRIER_TEST_PATTERN))
4328 if (lpfc_readl((resp_buf + 1), &resp_data))
4330 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4331 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4332 phba->pport->stopped)
4338 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4340 for (i = 0; i < 500; i++) {
4341 if (lpfc_readl(resp_buf, &resp_data))
4343 if (resp_data != mbox)
4352 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4354 if (!(ha_copy & HA_ERATT))
4360 if (readl(phba->HAregaddr) & HA_ERATT) {
4361 writel(HA_ERATT, phba->HAregaddr);
4362 phba->pport->stopped = 1;
4366 phba->link_flag &= ~LS_IGNORE_ERATT;
4367 writel(hc_copy, phba->HCregaddr);
4368 readl(phba->HCregaddr); /* flush */
4372 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4373 * @phba: Pointer to HBA context object.
4375 * This function issues a kill_board mailbox command and waits for
4376 * the error attention interrupt. This function is called for stopping
4377 * the firmware processing. The caller is not required to hold any
4378 * locks. This function calls lpfc_hba_down_post function to free
4379 * any pending commands after the kill. The function will return 1 when it
4380 * fails to kill the board else will return 0.
4383 lpfc_sli_brdkill(struct lpfc_hba *phba)
4385 struct lpfc_sli *psli;
4395 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4396 "0329 Kill HBA Data: x%x x%x\n",
4397 phba->pport->port_state, psli->sli_flag);
4399 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4403 /* Disable the error attention */
4404 spin_lock_irq(&phba->hbalock);
4405 if (lpfc_readl(phba->HCregaddr, &status)) {
4406 spin_unlock_irq(&phba->hbalock);
4407 mempool_free(pmb, phba->mbox_mem_pool);
4410 status &= ~HC_ERINT_ENA;
4411 writel(status, phba->HCregaddr);
4412 readl(phba->HCregaddr); /* flush */
4413 phba->link_flag |= LS_IGNORE_ERATT;
4414 spin_unlock_irq(&phba->hbalock);
4416 lpfc_kill_board(phba, pmb);
4417 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4418 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4420 if (retval != MBX_SUCCESS) {
4421 if (retval != MBX_BUSY)
4422 mempool_free(pmb, phba->mbox_mem_pool);
4423 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4424 "2752 KILL_BOARD command failed retval %d\n",
4426 spin_lock_irq(&phba->hbalock);
4427 phba->link_flag &= ~LS_IGNORE_ERATT;
4428 spin_unlock_irq(&phba->hbalock);
4432 spin_lock_irq(&phba->hbalock);
4433 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4434 spin_unlock_irq(&phba->hbalock);
4436 mempool_free(pmb, phba->mbox_mem_pool);
4438 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4439 * attention every 100ms for 3 seconds. If we don't get ERATT after
4440 * 3 seconds we still set HBA_ERROR state because the status of the
4441 * board is now undefined.
4443 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4445 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4447 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4451 del_timer_sync(&psli->mbox_tmo);
4452 if (ha_copy & HA_ERATT) {
4453 writel(HA_ERATT, phba->HAregaddr);
4454 phba->pport->stopped = 1;
4456 spin_lock_irq(&phba->hbalock);
4457 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4458 psli->mbox_active = NULL;
4459 phba->link_flag &= ~LS_IGNORE_ERATT;
4460 spin_unlock_irq(&phba->hbalock);
4462 lpfc_hba_down_post(phba);
4463 phba->link_state = LPFC_HBA_ERROR;
4465 return ha_copy & HA_ERATT ? 0 : 1;
4469 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4470 * @phba: Pointer to HBA context object.
4472 * This function resets the HBA by writing HC_INITFF to the control
4473 * register. After the HBA resets, this function resets all the iocb ring
4474 * indices. This function disables PCI layer parity checking during
4476 * This function returns 0 always.
4477 * The caller is not required to hold any locks.
4480 lpfc_sli_brdreset(struct lpfc_hba *phba)
4482 struct lpfc_sli *psli;
4483 struct lpfc_sli_ring *pring;
4490 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4491 "0325 Reset HBA Data: x%x x%x\n",
4492 (phba->pport) ? phba->pport->port_state : 0,
4495 /* perform board reset */
4496 phba->fc_eventTag = 0;
4497 phba->link_events = 0;
4499 phba->pport->fc_myDID = 0;
4500 phba->pport->fc_prevDID = 0;
4503 /* Turn off parity checking and serr during the physical reset */
4504 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4505 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4507 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4509 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4511 /* Now toggle INITFF bit in the Host Control Register */
4512 writel(HC_INITFF, phba->HCregaddr);
4514 readl(phba->HCregaddr); /* flush */
4515 writel(0, phba->HCregaddr);
4516 readl(phba->HCregaddr); /* flush */
4518 /* Restore PCI cmd register */
4519 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4521 /* Initialize relevant SLI info */
4522 for (i = 0; i < psli->num_rings; i++) {
4523 pring = &psli->sli3_ring[i];
4525 pring->sli.sli3.rspidx = 0;
4526 pring->sli.sli3.next_cmdidx = 0;
4527 pring->sli.sli3.local_getidx = 0;
4528 pring->sli.sli3.cmdidx = 0;
4529 pring->missbufcnt = 0;
4532 phba->link_state = LPFC_WARM_START;
4537 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4538 * @phba: Pointer to HBA context object.
4540 * This function resets a SLI4 HBA. This function disables PCI layer parity
4541 * checking during resets the device. The caller is not required to hold
4544 * This function returns 0 always.
4547 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4549 struct lpfc_sli *psli = &phba->sli;
4554 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4555 "0295 Reset HBA Data: x%x x%x x%x\n",
4556 phba->pport->port_state, psli->sli_flag,
4559 /* perform board reset */
4560 phba->fc_eventTag = 0;
4561 phba->link_events = 0;
4562 phba->pport->fc_myDID = 0;
4563 phba->pport->fc_prevDID = 0;
4565 spin_lock_irq(&phba->hbalock);
4566 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4567 phba->fcf.fcf_flag = 0;
4568 spin_unlock_irq(&phba->hbalock);
4570 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4571 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4572 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4576 /* Now physically reset the device */
4577 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4578 "0389 Performing PCI function reset!\n");
4580 /* Turn off parity checking and serr during the physical reset */
4581 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4582 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4583 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4585 /* Perform FCoE PCI function reset before freeing queue memory */
4586 rc = lpfc_pci_function_reset(phba);
4588 /* Restore PCI cmd register */
4589 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4595 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4596 * @phba: Pointer to HBA context object.
4598 * This function is called in the SLI initialization code path to
4599 * restart the HBA. The caller is not required to hold any lock.
4600 * This function writes MBX_RESTART mailbox command to the SLIM and
4601 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4602 * function to free any pending commands. The function enables
4603 * POST only during the first initialization. The function returns zero.
4604 * The function does not guarantee completion of MBX_RESTART mailbox
4605 * command before the return of this function.
4608 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4611 struct lpfc_sli *psli;
4612 volatile uint32_t word0;
4613 void __iomem *to_slim;
4614 uint32_t hba_aer_enabled;
4616 spin_lock_irq(&phba->hbalock);
4618 /* Take PCIe device Advanced Error Reporting (AER) state */
4619 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4624 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4625 "0337 Restart HBA Data: x%x x%x\n",
4626 (phba->pport) ? phba->pport->port_state : 0,
4630 mb = (MAILBOX_t *) &word0;
4631 mb->mbxCommand = MBX_RESTART;
4634 lpfc_reset_barrier(phba);
4636 to_slim = phba->MBslimaddr;
4637 writel(*(uint32_t *) mb, to_slim);
4638 readl(to_slim); /* flush */
4640 /* Only skip post after fc_ffinit is completed */
4641 if (phba->pport && phba->pport->port_state)
4642 word0 = 1; /* This is really setting up word1 */
4644 word0 = 0; /* This is really setting up word1 */
4645 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4646 writel(*(uint32_t *) mb, to_slim);
4647 readl(to_slim); /* flush */
4649 lpfc_sli_brdreset(phba);
4651 phba->pport->stopped = 0;
4652 phba->link_state = LPFC_INIT_START;
4654 spin_unlock_irq(&phba->hbalock);
4656 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4657 psli->stats_start = ktime_get_seconds();
4659 /* Give the INITFF and Post time to settle. */
4662 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4663 if (hba_aer_enabled)
4664 pci_disable_pcie_error_reporting(phba->pcidev);
4666 lpfc_hba_down_post(phba);
4672 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4673 * @phba: Pointer to HBA context object.
4675 * This function is called in the SLI initialization code path to restart
4676 * a SLI4 HBA. The caller is not required to hold any lock.
4677 * At the end of the function, it calls lpfc_hba_down_post function to
4678 * free any pending commands.
4681 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4683 struct lpfc_sli *psli = &phba->sli;
4684 uint32_t hba_aer_enabled;
4688 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4689 "0296 Restart HBA Data: x%x x%x\n",
4690 phba->pport->port_state, psli->sli_flag);
4692 /* Take PCIe device Advanced Error Reporting (AER) state */
4693 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4695 rc = lpfc_sli4_brdreset(phba);
4699 spin_lock_irq(&phba->hbalock);
4700 phba->pport->stopped = 0;
4701 phba->link_state = LPFC_INIT_START;
4703 spin_unlock_irq(&phba->hbalock);
4705 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4706 psli->stats_start = ktime_get_seconds();
4708 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4709 if (hba_aer_enabled)
4710 pci_disable_pcie_error_reporting(phba->pcidev);
4712 lpfc_hba_down_post(phba);
4713 lpfc_sli4_queue_destroy(phba);
4719 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4720 * @phba: Pointer to HBA context object.
4722 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4723 * API jump table function pointer from the lpfc_hba struct.
4726 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4728 return phba->lpfc_sli_brdrestart(phba);
4732 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4733 * @phba: Pointer to HBA context object.
4735 * This function is called after a HBA restart to wait for successful
4736 * restart of the HBA. Successful restart of the HBA is indicated by
4737 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4738 * iteration, the function will restart the HBA again. The function returns
4739 * zero if HBA successfully restarted else returns negative error code.
4742 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4744 uint32_t status, i = 0;
4746 /* Read the HBA Host Status Register */
4747 if (lpfc_readl(phba->HSregaddr, &status))
4750 /* Check status register to see what current state is */
4752 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4754 /* Check every 10ms for 10 retries, then every 100ms for 90
4755 * retries, then every 1 sec for 50 retires for a total of
4756 * ~60 seconds before reset the board again and check every
4757 * 1 sec for 50 retries. The up to 60 seconds before the
4758 * board ready is required by the Falcon FIPS zeroization
4759 * complete, and any reset the board in between shall cause
4760 * restart of zeroization, further delay the board ready.
4763 /* Adapter failed to init, timeout, status reg
4765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4766 "0436 Adapter failed to init, "
4767 "timeout, status reg x%x, "
4768 "FW Data: A8 x%x AC x%x\n", status,
4769 readl(phba->MBslimaddr + 0xa8),
4770 readl(phba->MBslimaddr + 0xac));
4771 phba->link_state = LPFC_HBA_ERROR;
4775 /* Check to see if any errors occurred during init */
4776 if (status & HS_FFERM) {
4777 /* ERROR: During chipset initialization */
4778 /* Adapter failed to init, chipset, status reg
4780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4781 "0437 Adapter failed to init, "
4782 "chipset, status reg x%x, "
4783 "FW Data: A8 x%x AC x%x\n", status,
4784 readl(phba->MBslimaddr + 0xa8),
4785 readl(phba->MBslimaddr + 0xac));
4786 phba->link_state = LPFC_HBA_ERROR;
4799 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4800 lpfc_sli_brdrestart(phba);
4802 /* Read the HBA Host Status Register */
4803 if (lpfc_readl(phba->HSregaddr, &status))
4807 /* Check to see if any errors occurred during init */
4808 if (status & HS_FFERM) {
4809 /* ERROR: During chipset initialization */
4810 /* Adapter failed to init, chipset, status reg <status> */
4811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4812 "0438 Adapter failed to init, chipset, "
4814 "FW Data: A8 x%x AC x%x\n", status,
4815 readl(phba->MBslimaddr + 0xa8),
4816 readl(phba->MBslimaddr + 0xac));
4817 phba->link_state = LPFC_HBA_ERROR;
4821 /* Clear all interrupt enable conditions */
4822 writel(0, phba->HCregaddr);
4823 readl(phba->HCregaddr); /* flush */
4825 /* setup host attn register */
4826 writel(0xffffffff, phba->HAregaddr);
4827 readl(phba->HAregaddr); /* flush */
4832 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4834 * This function calculates and returns the number of HBQs required to be
4838 lpfc_sli_hbq_count(void)
4840 return ARRAY_SIZE(lpfc_hbq_defs);
4844 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4846 * This function adds the number of hbq entries in every HBQ to get
4847 * the total number of hbq entries required for the HBA and returns
4851 lpfc_sli_hbq_entry_count(void)
4853 int hbq_count = lpfc_sli_hbq_count();
4857 for (i = 0; i < hbq_count; ++i)
4858 count += lpfc_hbq_defs[i]->entry_count;
4863 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4865 * This function calculates amount of memory required for all hbq entries
4866 * to be configured and returns the total memory required.
4869 lpfc_sli_hbq_size(void)
4871 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4875 * lpfc_sli_hbq_setup - configure and initialize HBQs
4876 * @phba: Pointer to HBA context object.
4878 * This function is called during the SLI initialization to configure
4879 * all the HBQs and post buffers to the HBQ. The caller is not
4880 * required to hold any locks. This function will return zero if successful
4881 * else it will return negative error code.
4884 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4886 int hbq_count = lpfc_sli_hbq_count();
4890 uint32_t hbq_entry_index;
4892 /* Get a Mailbox buffer to setup mailbox
4893 * commands for HBA initialization
4895 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4902 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4903 phba->link_state = LPFC_INIT_MBX_CMDS;
4904 phba->hbq_in_use = 1;
4906 hbq_entry_index = 0;
4907 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4908 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4909 phba->hbqs[hbqno].hbqPutIdx = 0;
4910 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4911 phba->hbqs[hbqno].entry_count =
4912 lpfc_hbq_defs[hbqno]->entry_count;
4913 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4914 hbq_entry_index, pmb);
4915 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4917 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4918 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4919 mbxStatus <status>, ring <num> */
4921 lpfc_printf_log(phba, KERN_ERR,
4922 LOG_SLI | LOG_VPORT,
4923 "1805 Adapter failed to init. "
4924 "Data: x%x x%x x%x\n",
4926 pmbox->mbxStatus, hbqno);
4928 phba->link_state = LPFC_HBA_ERROR;
4929 mempool_free(pmb, phba->mbox_mem_pool);
4933 phba->hbq_count = hbq_count;
4935 mempool_free(pmb, phba->mbox_mem_pool);
4937 /* Initially populate or replenish the HBQs */
4938 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4939 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4944 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4945 * @phba: Pointer to HBA context object.
4947 * This function is called during the SLI initialization to configure
4948 * all the HBQs and post buffers to the HBQ. The caller is not
4949 * required to hold any locks. This function will return zero if successful
4950 * else it will return negative error code.
4953 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4955 phba->hbq_in_use = 1;
4956 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4957 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
4958 phba->hbq_count = 1;
4959 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
4960 /* Initially populate or replenish the HBQs */
4965 * lpfc_sli_config_port - Issue config port mailbox command
4966 * @phba: Pointer to HBA context object.
4967 * @sli_mode: sli mode - 2/3
4969 * This function is called by the sli initialization code path
4970 * to issue config_port mailbox command. This function restarts the
4971 * HBA firmware and issues a config_port mailbox command to configure
4972 * the SLI interface in the sli mode specified by sli_mode
4973 * variable. The caller is not required to hold any locks.
4974 * The function returns 0 if successful, else returns negative error
4978 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4981 uint32_t resetcount = 0, rc = 0, done = 0;
4983 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4985 phba->link_state = LPFC_HBA_ERROR;
4989 phba->sli_rev = sli_mode;
4990 while (resetcount < 2 && !done) {
4991 spin_lock_irq(&phba->hbalock);
4992 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4993 spin_unlock_irq(&phba->hbalock);
4994 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4995 lpfc_sli_brdrestart(phba);
4996 rc = lpfc_sli_chipset_init(phba);
5000 spin_lock_irq(&phba->hbalock);
5001 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5002 spin_unlock_irq(&phba->hbalock);
5005 /* Call pre CONFIG_PORT mailbox command initialization. A
5006 * value of 0 means the call was successful. Any other
5007 * nonzero value is a failure, but if ERESTART is returned,
5008 * the driver may reset the HBA and try again.
5010 rc = lpfc_config_port_prep(phba);
5011 if (rc == -ERESTART) {
5012 phba->link_state = LPFC_LINK_UNKNOWN;
5017 phba->link_state = LPFC_INIT_MBX_CMDS;
5018 lpfc_config_port(phba, pmb);
5019 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5020 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
5021 LPFC_SLI3_HBQ_ENABLED |
5022 LPFC_SLI3_CRP_ENABLED |
5023 LPFC_SLI3_DSS_ENABLED);
5024 if (rc != MBX_SUCCESS) {
5025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5026 "0442 Adapter failed to init, mbxCmd x%x "
5027 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
5028 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
5029 spin_lock_irq(&phba->hbalock);
5030 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
5031 spin_unlock_irq(&phba->hbalock);
5034 /* Allow asynchronous mailbox command to go through */
5035 spin_lock_irq(&phba->hbalock);
5036 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5037 spin_unlock_irq(&phba->hbalock);
5040 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
5041 (pmb->u.mb.un.varCfgPort.gasabt == 0))
5042 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5043 "3110 Port did not grant ASABT\n");
5048 goto do_prep_failed;
5050 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
5051 if (!pmb->u.mb.un.varCfgPort.cMA) {
5053 goto do_prep_failed;
5055 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
5056 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
5057 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
5058 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
5059 phba->max_vpi : phba->max_vports;
5063 phba->fips_level = 0;
5064 phba->fips_spec_rev = 0;
5065 if (pmb->u.mb.un.varCfgPort.gdss) {
5066 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
5067 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
5068 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
5069 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5070 "2850 Security Crypto Active. FIPS x%d "
5072 phba->fips_level, phba->fips_spec_rev);
5074 if (pmb->u.mb.un.varCfgPort.sec_err) {
5075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5076 "2856 Config Port Security Crypto "
5078 pmb->u.mb.un.varCfgPort.sec_err);
5080 if (pmb->u.mb.un.varCfgPort.gerbm)
5081 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
5082 if (pmb->u.mb.un.varCfgPort.gcrp)
5083 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
5085 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
5086 phba->port_gp = phba->mbox->us.s3_pgp.port;
5088 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5089 if (pmb->u.mb.un.varCfgPort.gbg == 0) {
5090 phba->cfg_enable_bg = 0;
5091 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
5092 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5093 "0443 Adapter did not grant "
5098 phba->hbq_get = NULL;
5099 phba->port_gp = phba->mbox->us.s2.port;
5103 mempool_free(pmb, phba->mbox_mem_pool);
5109 * lpfc_sli_hba_setup - SLI initialization function
5110 * @phba: Pointer to HBA context object.
5112 * This function is the main SLI initialization function. This function
5113 * is called by the HBA initialization code, HBA reset code and HBA
5114 * error attention handler code. Caller is not required to hold any
5115 * locks. This function issues config_port mailbox command to configure
5116 * the SLI, setup iocb rings and HBQ rings. In the end the function
5117 * calls the config_port_post function to issue init_link mailbox
5118 * command and to start the discovery. The function will return zero
5119 * if successful, else it will return negative error code.
5122 lpfc_sli_hba_setup(struct lpfc_hba *phba)
5128 switch (phba->cfg_sli_mode) {
5130 if (phba->cfg_enable_npiv) {
5131 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5132 "1824 NPIV enabled: Override sli_mode "
5133 "parameter (%d) to auto (0).\n",
5134 phba->cfg_sli_mode);
5143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5144 "1819 Unrecognized sli_mode parameter: %d.\n",
5145 phba->cfg_sli_mode);
5149 phba->fcp_embed_io = 0; /* SLI4 FC support only */
5151 rc = lpfc_sli_config_port(phba, mode);
5153 if (rc && phba->cfg_sli_mode == 3)
5154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5155 "1820 Unable to select SLI-3. "
5156 "Not supported by adapter.\n");
5157 if (rc && mode != 2)
5158 rc = lpfc_sli_config_port(phba, 2);
5159 else if (rc && mode == 2)
5160 rc = lpfc_sli_config_port(phba, 3);
5162 goto lpfc_sli_hba_setup_error;
5164 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
5165 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
5166 rc = pci_enable_pcie_error_reporting(phba->pcidev);
5168 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5169 "2709 This device supports "
5170 "Advanced Error Reporting (AER)\n");
5171 spin_lock_irq(&phba->hbalock);
5172 phba->hba_flag |= HBA_AER_ENABLED;
5173 spin_unlock_irq(&phba->hbalock);
5175 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5176 "2708 This device does not support "
5177 "Advanced Error Reporting (AER): %d\n",
5179 phba->cfg_aer_support = 0;
5183 if (phba->sli_rev == 3) {
5184 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
5185 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
5187 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
5188 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
5189 phba->sli3_options = 0;
5192 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5193 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
5194 phba->sli_rev, phba->max_vpi);
5195 rc = lpfc_sli_ring_map(phba);
5198 goto lpfc_sli_hba_setup_error;
5200 /* Initialize VPIs. */
5201 if (phba->sli_rev == LPFC_SLI_REV3) {
5203 * The VPI bitmask and physical ID array are allocated
5204 * and initialized once only - at driver load. A port
5205 * reset doesn't need to reinitialize this memory.
5207 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
5208 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
5209 phba->vpi_bmask = kcalloc(longs,
5210 sizeof(unsigned long),
5212 if (!phba->vpi_bmask) {
5214 goto lpfc_sli_hba_setup_error;
5217 phba->vpi_ids = kcalloc(phba->max_vpi + 1,
5220 if (!phba->vpi_ids) {
5221 kfree(phba->vpi_bmask);
5223 goto lpfc_sli_hba_setup_error;
5225 for (i = 0; i < phba->max_vpi; i++)
5226 phba->vpi_ids[i] = i;
5231 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
5232 rc = lpfc_sli_hbq_setup(phba);
5234 goto lpfc_sli_hba_setup_error;
5236 spin_lock_irq(&phba->hbalock);
5237 phba->sli.sli_flag |= LPFC_PROCESS_LA;
5238 spin_unlock_irq(&phba->hbalock);
5240 rc = lpfc_config_port_post(phba);
5242 goto lpfc_sli_hba_setup_error;
5246 lpfc_sli_hba_setup_error:
5247 phba->link_state = LPFC_HBA_ERROR;
5248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5249 "0445 Firmware initialization failed\n");
5254 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
5255 * @phba: Pointer to HBA context object.
5256 * @mboxq: mailbox pointer.
5257 * This function issue a dump mailbox command to read config region
5258 * 23 and parse the records in the region and populate driver
5262 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
5264 LPFC_MBOXQ_t *mboxq;
5265 struct lpfc_dmabuf *mp;
5266 struct lpfc_mqe *mqe;
5267 uint32_t data_length;
5270 /* Program the default value of vlan_id and fc_map */
5271 phba->valid_vlan = 0;
5272 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5273 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5274 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5276 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5280 mqe = &mboxq->u.mqe;
5281 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5283 goto out_free_mboxq;
5286 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
5287 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5289 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5290 "(%d):2571 Mailbox cmd x%x Status x%x "
5291 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5292 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5293 "CQ: x%x x%x x%x x%x\n",
5294 mboxq->vport ? mboxq->vport->vpi : 0,
5295 bf_get(lpfc_mqe_command, mqe),
5296 bf_get(lpfc_mqe_status, mqe),
5297 mqe->un.mb_words[0], mqe->un.mb_words[1],
5298 mqe->un.mb_words[2], mqe->un.mb_words[3],
5299 mqe->un.mb_words[4], mqe->un.mb_words[5],
5300 mqe->un.mb_words[6], mqe->un.mb_words[7],
5301 mqe->un.mb_words[8], mqe->un.mb_words[9],
5302 mqe->un.mb_words[10], mqe->un.mb_words[11],
5303 mqe->un.mb_words[12], mqe->un.mb_words[13],
5304 mqe->un.mb_words[14], mqe->un.mb_words[15],
5305 mqe->un.mb_words[16], mqe->un.mb_words[50],
5307 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5308 mboxq->mcqe.trailer);
5311 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5314 goto out_free_mboxq;
5316 data_length = mqe->un.mb_words[5];
5317 if (data_length > DMP_RGN23_SIZE) {
5318 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5321 goto out_free_mboxq;
5324 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5325 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5330 mempool_free(mboxq, phba->mbox_mem_pool);
5335 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5336 * @phba: pointer to lpfc hba data structure.
5337 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5338 * @vpd: pointer to the memory to hold resulting port vpd data.
5339 * @vpd_size: On input, the number of bytes allocated to @vpd.
5340 * On output, the number of data bytes in @vpd.
5342 * This routine executes a READ_REV SLI4 mailbox command. In
5343 * addition, this routine gets the port vpd data.
5347 * -ENOMEM - could not allocated memory.
5350 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5351 uint8_t *vpd, uint32_t *vpd_size)
5355 struct lpfc_dmabuf *dmabuf;
5356 struct lpfc_mqe *mqe;
5358 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5363 * Get a DMA buffer for the vpd data resulting from the READ_REV
5366 dma_size = *vpd_size;
5367 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
5368 &dmabuf->phys, GFP_KERNEL);
5369 if (!dmabuf->virt) {
5375 * The SLI4 implementation of READ_REV conflicts at word1,
5376 * bits 31:16 and SLI4 adds vpd functionality not present
5377 * in SLI3. This code corrects the conflicts.
5379 lpfc_read_rev(phba, mboxq);
5380 mqe = &mboxq->u.mqe;
5381 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5382 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5383 mqe->un.read_rev.word1 &= 0x0000FFFF;
5384 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5385 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5387 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5389 dma_free_coherent(&phba->pcidev->dev, dma_size,
5390 dmabuf->virt, dmabuf->phys);
5396 * The available vpd length cannot be bigger than the
5397 * DMA buffer passed to the port. Catch the less than
5398 * case and update the caller's size.
5400 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5401 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5403 memcpy(vpd, dmabuf->virt, *vpd_size);
5405 dma_free_coherent(&phba->pcidev->dev, dma_size,
5406 dmabuf->virt, dmabuf->phys);
5412 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5413 * @phba: pointer to lpfc hba data structure.
5415 * This routine retrieves SLI4 device physical port name this PCI function
5420 * otherwise - failed to retrieve physical port name
5423 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5425 LPFC_MBOXQ_t *mboxq;
5426 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5427 struct lpfc_controller_attribute *cntl_attr;
5428 struct lpfc_mbx_get_port_name *get_port_name;
5429 void *virtaddr = NULL;
5430 uint32_t alloclen, reqlen;
5431 uint32_t shdr_status, shdr_add_status;
5432 union lpfc_sli4_cfg_shdr *shdr;
5433 char cport_name = 0;
5436 /* We assume nothing at this point */
5437 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5438 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5440 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5443 /* obtain link type and link number via READ_CONFIG */
5444 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5445 lpfc_sli4_read_config(phba);
5446 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5447 goto retrieve_ppname;
5449 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5450 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5451 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5452 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5453 LPFC_SLI4_MBX_NEMBED);
5454 if (alloclen < reqlen) {
5455 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5456 "3084 Allocated DMA memory size (%d) is "
5457 "less than the requested DMA memory size "
5458 "(%d)\n", alloclen, reqlen);
5460 goto out_free_mboxq;
5462 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5463 virtaddr = mboxq->sge_array->addr[0];
5464 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5465 shdr = &mbx_cntl_attr->cfg_shdr;
5466 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5467 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5468 if (shdr_status || shdr_add_status || rc) {
5469 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5470 "3085 Mailbox x%x (x%x/x%x) failed, "
5471 "rc:x%x, status:x%x, add_status:x%x\n",
5472 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5473 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5474 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5475 rc, shdr_status, shdr_add_status);
5477 goto out_free_mboxq;
5479 cntl_attr = &mbx_cntl_attr->cntl_attr;
5480 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5481 phba->sli4_hba.lnk_info.lnk_tp =
5482 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5483 phba->sli4_hba.lnk_info.lnk_no =
5484 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5485 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5486 "3086 lnk_type:%d, lnk_numb:%d\n",
5487 phba->sli4_hba.lnk_info.lnk_tp,
5488 phba->sli4_hba.lnk_info.lnk_no);
5491 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5492 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5493 sizeof(struct lpfc_mbx_get_port_name) -
5494 sizeof(struct lpfc_sli4_cfg_mhdr),
5495 LPFC_SLI4_MBX_EMBED);
5496 get_port_name = &mboxq->u.mqe.un.get_port_name;
5497 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5498 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5499 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5500 phba->sli4_hba.lnk_info.lnk_tp);
5501 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5502 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5503 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5504 if (shdr_status || shdr_add_status || rc) {
5505 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5506 "3087 Mailbox x%x (x%x/x%x) failed: "
5507 "rc:x%x, status:x%x, add_status:x%x\n",
5508 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5509 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5510 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5511 rc, shdr_status, shdr_add_status);
5513 goto out_free_mboxq;
5515 switch (phba->sli4_hba.lnk_info.lnk_no) {
5516 case LPFC_LINK_NUMBER_0:
5517 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5518 &get_port_name->u.response);
5519 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5521 case LPFC_LINK_NUMBER_1:
5522 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5523 &get_port_name->u.response);
5524 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5526 case LPFC_LINK_NUMBER_2:
5527 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5528 &get_port_name->u.response);
5529 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5531 case LPFC_LINK_NUMBER_3:
5532 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5533 &get_port_name->u.response);
5534 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5540 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5541 phba->Port[0] = cport_name;
5542 phba->Port[1] = '\0';
5543 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5544 "3091 SLI get port name: %s\n", phba->Port);
5548 if (rc != MBX_TIMEOUT) {
5549 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5550 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5552 mempool_free(mboxq, phba->mbox_mem_pool);
5558 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5559 * @phba: pointer to lpfc hba data structure.
5561 * This routine is called to explicitly arm the SLI4 device's completion and
5565 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5568 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
5569 struct lpfc_sli4_hdw_queue *qp;
5571 sli4_hba->sli4_cq_release(sli4_hba->mbx_cq, LPFC_QUEUE_REARM);
5572 sli4_hba->sli4_cq_release(sli4_hba->els_cq, LPFC_QUEUE_REARM);
5573 if (sli4_hba->nvmels_cq)
5574 sli4_hba->sli4_cq_release(sli4_hba->nvmels_cq,
5577 qp = sli4_hba->hdwq;
5578 if (sli4_hba->hdwq) {
5579 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
5580 sli4_hba->sli4_cq_release(qp[qidx].fcp_cq,
5582 sli4_hba->sli4_cq_release(qp[qidx].nvme_cq,
5586 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++)
5587 sli4_hba->sli4_eq_release(qp[qidx].hba_eq,
5591 if (phba->nvmet_support) {
5592 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5593 sli4_hba->sli4_cq_release(
5594 sli4_hba->nvmet_cqset[qidx],
5601 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5602 * @phba: Pointer to HBA context object.
5603 * @type: The resource extent type.
5604 * @extnt_count: buffer to hold port available extent count.
5605 * @extnt_size: buffer to hold element count per extent.
5607 * This function calls the port and retrievs the number of available
5608 * extents and their size for a particular extent type.
5610 * Returns: 0 if successful. Nonzero otherwise.
5613 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5614 uint16_t *extnt_count, uint16_t *extnt_size)
5619 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5622 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5626 /* Find out how many extents are available for this resource type */
5627 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5628 sizeof(struct lpfc_sli4_cfg_mhdr));
5629 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5630 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5631 length, LPFC_SLI4_MBX_EMBED);
5633 /* Send an extents count of 0 - the GET doesn't use it. */
5634 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5635 LPFC_SLI4_MBX_EMBED);
5641 if (!phba->sli4_hba.intr_enable)
5642 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5644 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5645 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5652 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5653 if (bf_get(lpfc_mbox_hdr_status,
5654 &rsrc_info->header.cfg_shdr.response)) {
5655 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5656 "2930 Failed to get resource extents "
5657 "Status 0x%x Add'l Status 0x%x\n",
5658 bf_get(lpfc_mbox_hdr_status,
5659 &rsrc_info->header.cfg_shdr.response),
5660 bf_get(lpfc_mbox_hdr_add_status,
5661 &rsrc_info->header.cfg_shdr.response));
5666 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5668 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5671 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5672 "3162 Retrieved extents type-%d from port: count:%d, "
5673 "size:%d\n", type, *extnt_count, *extnt_size);
5676 mempool_free(mbox, phba->mbox_mem_pool);
5681 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5682 * @phba: Pointer to HBA context object.
5683 * @type: The extent type to check.
5685 * This function reads the current available extents from the port and checks
5686 * if the extent count or extent size has changed since the last access.
5687 * Callers use this routine post port reset to understand if there is a
5688 * extent reprovisioning requirement.
5691 * -Error: error indicates problem.
5692 * 1: Extent count or size has changed.
5696 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5698 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5699 uint16_t size_diff, rsrc_ext_size;
5701 struct lpfc_rsrc_blks *rsrc_entry;
5702 struct list_head *rsrc_blk_list = NULL;
5706 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5713 case LPFC_RSC_TYPE_FCOE_RPI:
5714 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5716 case LPFC_RSC_TYPE_FCOE_VPI:
5717 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5719 case LPFC_RSC_TYPE_FCOE_XRI:
5720 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5722 case LPFC_RSC_TYPE_FCOE_VFI:
5723 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5729 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5731 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5735 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5742 * lpfc_sli4_cfg_post_extnts -
5743 * @phba: Pointer to HBA context object.
5744 * @extnt_cnt - number of available extents.
5745 * @type - the extent type (rpi, xri, vfi, vpi).
5746 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5747 * @mbox - pointer to the caller's allocated mailbox structure.
5749 * This function executes the extents allocation request. It also
5750 * takes care of the amount of memory needed to allocate or get the
5751 * allocated extents. It is the caller's responsibility to evaluate
5755 * -Error: Error value describes the condition found.
5759 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5760 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5765 uint32_t alloc_len, mbox_tmo;
5767 /* Calculate the total requested length of the dma memory */
5768 req_len = extnt_cnt * sizeof(uint16_t);
5771 * Calculate the size of an embedded mailbox. The uint32_t
5772 * accounts for extents-specific word.
5774 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5778 * Presume the allocation and response will fit into an embedded
5779 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5781 *emb = LPFC_SLI4_MBX_EMBED;
5782 if (req_len > emb_len) {
5783 req_len = extnt_cnt * sizeof(uint16_t) +
5784 sizeof(union lpfc_sli4_cfg_shdr) +
5786 *emb = LPFC_SLI4_MBX_NEMBED;
5789 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5790 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5792 if (alloc_len < req_len) {
5793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5794 "2982 Allocated DMA memory size (x%x) is "
5795 "less than the requested DMA memory "
5796 "size (x%x)\n", alloc_len, req_len);
5799 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5803 if (!phba->sli4_hba.intr_enable)
5804 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5806 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5807 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5816 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5817 * @phba: Pointer to HBA context object.
5818 * @type: The resource extent type to allocate.
5820 * This function allocates the number of elements for the specified
5824 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5827 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5828 uint16_t rsrc_id, rsrc_start, j, k;
5831 unsigned long longs;
5832 unsigned long *bmask;
5833 struct lpfc_rsrc_blks *rsrc_blks;
5836 struct lpfc_id_range *id_array = NULL;
5837 void *virtaddr = NULL;
5838 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5839 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5840 struct list_head *ext_blk_list;
5842 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5848 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5849 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5850 "3009 No available Resource Extents "
5851 "for resource type 0x%x: Count: 0x%x, "
5852 "Size 0x%x\n", type, rsrc_cnt,
5857 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5858 "2903 Post resource extents type-0x%x: "
5859 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5861 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5865 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5872 * Figure out where the response is located. Then get local pointers
5873 * to the response data. The port does not guarantee to respond to
5874 * all extents counts request so update the local variable with the
5875 * allocated count from the port.
5877 if (emb == LPFC_SLI4_MBX_EMBED) {
5878 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5879 id_array = &rsrc_ext->u.rsp.id[0];
5880 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5882 virtaddr = mbox->sge_array->addr[0];
5883 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5884 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5885 id_array = &n_rsrc->id;
5888 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5889 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5892 * Based on the resource size and count, correct the base and max
5895 length = sizeof(struct lpfc_rsrc_blks);
5897 case LPFC_RSC_TYPE_FCOE_RPI:
5898 phba->sli4_hba.rpi_bmask = kcalloc(longs,
5899 sizeof(unsigned long),
5901 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5905 phba->sli4_hba.rpi_ids = kcalloc(rsrc_id_cnt,
5908 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5909 kfree(phba->sli4_hba.rpi_bmask);
5915 * The next_rpi was initialized with the maximum available
5916 * count but the port may allocate a smaller number. Catch
5917 * that case and update the next_rpi.
5919 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5921 /* Initialize local ptrs for common extent processing later. */
5922 bmask = phba->sli4_hba.rpi_bmask;
5923 ids = phba->sli4_hba.rpi_ids;
5924 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5926 case LPFC_RSC_TYPE_FCOE_VPI:
5927 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
5929 if (unlikely(!phba->vpi_bmask)) {
5933 phba->vpi_ids = kcalloc(rsrc_id_cnt, sizeof(uint16_t),
5935 if (unlikely(!phba->vpi_ids)) {
5936 kfree(phba->vpi_bmask);
5941 /* Initialize local ptrs for common extent processing later. */
5942 bmask = phba->vpi_bmask;
5943 ids = phba->vpi_ids;
5944 ext_blk_list = &phba->lpfc_vpi_blk_list;
5946 case LPFC_RSC_TYPE_FCOE_XRI:
5947 phba->sli4_hba.xri_bmask = kcalloc(longs,
5948 sizeof(unsigned long),
5950 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5954 phba->sli4_hba.max_cfg_param.xri_used = 0;
5955 phba->sli4_hba.xri_ids = kcalloc(rsrc_id_cnt,
5958 if (unlikely(!phba->sli4_hba.xri_ids)) {
5959 kfree(phba->sli4_hba.xri_bmask);
5964 /* Initialize local ptrs for common extent processing later. */
5965 bmask = phba->sli4_hba.xri_bmask;
5966 ids = phba->sli4_hba.xri_ids;
5967 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5969 case LPFC_RSC_TYPE_FCOE_VFI:
5970 phba->sli4_hba.vfi_bmask = kcalloc(longs,
5971 sizeof(unsigned long),
5973 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5977 phba->sli4_hba.vfi_ids = kcalloc(rsrc_id_cnt,
5980 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5981 kfree(phba->sli4_hba.vfi_bmask);
5986 /* Initialize local ptrs for common extent processing later. */
5987 bmask = phba->sli4_hba.vfi_bmask;
5988 ids = phba->sli4_hba.vfi_ids;
5989 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5992 /* Unsupported Opcode. Fail call. */
5996 ext_blk_list = NULL;
6001 * Complete initializing the extent configuration with the
6002 * allocated ids assigned to this function. The bitmask serves
6003 * as an index into the array and manages the available ids. The
6004 * array just stores the ids communicated to the port via the wqes.
6006 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
6008 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
6011 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
6014 rsrc_blks = kzalloc(length, GFP_KERNEL);
6015 if (unlikely(!rsrc_blks)) {
6021 rsrc_blks->rsrc_start = rsrc_id;
6022 rsrc_blks->rsrc_size = rsrc_size;
6023 list_add_tail(&rsrc_blks->list, ext_blk_list);
6024 rsrc_start = rsrc_id;
6025 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
6026 phba->sli4_hba.io_xri_start = rsrc_start +
6027 lpfc_sli4_get_iocb_cnt(phba);
6030 while (rsrc_id < (rsrc_start + rsrc_size)) {
6035 /* Entire word processed. Get next word.*/
6040 lpfc_sli4_mbox_cmd_free(phba, mbox);
6047 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
6048 * @phba: Pointer to HBA context object.
6049 * @type: the extent's type.
6051 * This function deallocates all extents of a particular resource type.
6052 * SLI4 does not allow for deallocating a particular extent range. It
6053 * is the caller's responsibility to release all kernel memory resources.
6056 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
6059 uint32_t length, mbox_tmo = 0;
6061 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
6062 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
6064 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6069 * This function sends an embedded mailbox because it only sends the
6070 * the resource type. All extents of this type are released by the
6073 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
6074 sizeof(struct lpfc_sli4_cfg_mhdr));
6075 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6076 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
6077 length, LPFC_SLI4_MBX_EMBED);
6079 /* Send an extents count of 0 - the dealloc doesn't use it. */
6080 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6081 LPFC_SLI4_MBX_EMBED);
6086 if (!phba->sli4_hba.intr_enable)
6087 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6089 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6090 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6097 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
6098 if (bf_get(lpfc_mbox_hdr_status,
6099 &dealloc_rsrc->header.cfg_shdr.response)) {
6100 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6101 "2919 Failed to release resource extents "
6102 "for type %d - Status 0x%x Add'l Status 0x%x. "
6103 "Resource memory not released.\n",
6105 bf_get(lpfc_mbox_hdr_status,
6106 &dealloc_rsrc->header.cfg_shdr.response),
6107 bf_get(lpfc_mbox_hdr_add_status,
6108 &dealloc_rsrc->header.cfg_shdr.response));
6113 /* Release kernel memory resources for the specific type. */
6115 case LPFC_RSC_TYPE_FCOE_VPI:
6116 kfree(phba->vpi_bmask);
6117 kfree(phba->vpi_ids);
6118 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6119 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6120 &phba->lpfc_vpi_blk_list, list) {
6121 list_del_init(&rsrc_blk->list);
6124 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6126 case LPFC_RSC_TYPE_FCOE_XRI:
6127 kfree(phba->sli4_hba.xri_bmask);
6128 kfree(phba->sli4_hba.xri_ids);
6129 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6130 &phba->sli4_hba.lpfc_xri_blk_list, list) {
6131 list_del_init(&rsrc_blk->list);
6135 case LPFC_RSC_TYPE_FCOE_VFI:
6136 kfree(phba->sli4_hba.vfi_bmask);
6137 kfree(phba->sli4_hba.vfi_ids);
6138 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6139 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6140 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
6141 list_del_init(&rsrc_blk->list);
6145 case LPFC_RSC_TYPE_FCOE_RPI:
6146 /* RPI bitmask and physical id array are cleaned up earlier. */
6147 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6148 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
6149 list_del_init(&rsrc_blk->list);
6157 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6160 mempool_free(mbox, phba->mbox_mem_pool);
6165 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
6170 len = sizeof(struct lpfc_mbx_set_feature) -
6171 sizeof(struct lpfc_sli4_cfg_mhdr);
6172 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6173 LPFC_MBOX_OPCODE_SET_FEATURES, len,
6174 LPFC_SLI4_MBX_EMBED);
6177 case LPFC_SET_UE_RECOVERY:
6178 bf_set(lpfc_mbx_set_feature_UER,
6179 &mbox->u.mqe.un.set_feature, 1);
6180 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
6181 mbox->u.mqe.un.set_feature.param_len = 8;
6183 case LPFC_SET_MDS_DIAGS:
6184 bf_set(lpfc_mbx_set_feature_mds,
6185 &mbox->u.mqe.un.set_feature, 1);
6186 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
6187 &mbox->u.mqe.un.set_feature, 1);
6188 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
6189 mbox->u.mqe.un.set_feature.param_len = 8;
6197 * lpfc_ras_stop_fwlog: Disable FW logging by the adapter
6198 * @phba: Pointer to HBA context object.
6200 * Disable FW logging into host memory on the adapter. To
6201 * be done before reading logs from the host memory.
6204 lpfc_ras_stop_fwlog(struct lpfc_hba *phba)
6206 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6208 ras_fwlog->ras_active = false;
6210 /* Disable FW logging to host memory */
6211 writel(LPFC_CTL_PDEV_CTL_DDL_RAS,
6212 phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
6216 * lpfc_sli4_ras_dma_free - Free memory allocated for FW logging.
6217 * @phba: Pointer to HBA context object.
6219 * This function is called to free memory allocated for RAS FW logging
6220 * support in the driver.
6223 lpfc_sli4_ras_dma_free(struct lpfc_hba *phba)
6225 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6226 struct lpfc_dmabuf *dmabuf, *next;
6228 if (!list_empty(&ras_fwlog->fwlog_buff_list)) {
6229 list_for_each_entry_safe(dmabuf, next,
6230 &ras_fwlog->fwlog_buff_list,
6232 list_del(&dmabuf->list);
6233 dma_free_coherent(&phba->pcidev->dev,
6234 LPFC_RAS_MAX_ENTRY_SIZE,
6235 dmabuf->virt, dmabuf->phys);
6240 if (ras_fwlog->lwpd.virt) {
6241 dma_free_coherent(&phba->pcidev->dev,
6242 sizeof(uint32_t) * 2,
6243 ras_fwlog->lwpd.virt,
6244 ras_fwlog->lwpd.phys);
6245 ras_fwlog->lwpd.virt = NULL;
6248 ras_fwlog->ras_active = false;
6252 * lpfc_sli4_ras_dma_alloc: Allocate memory for FW support
6253 * @phba: Pointer to HBA context object.
6254 * @fwlog_buff_count: Count of buffers to be created.
6256 * This routine DMA memory for Log Write Position Data[LPWD] and buffer
6257 * to update FW log is posted to the adapter.
6258 * Buffer count is calculated based on module param ras_fwlog_buffsize
6259 * Size of each buffer posted to FW is 64K.
6263 lpfc_sli4_ras_dma_alloc(struct lpfc_hba *phba,
6264 uint32_t fwlog_buff_count)
6266 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6267 struct lpfc_dmabuf *dmabuf;
6270 /* Initialize List */
6271 INIT_LIST_HEAD(&ras_fwlog->fwlog_buff_list);
6273 /* Allocate memory for the LWPD */
6274 ras_fwlog->lwpd.virt = dma_alloc_coherent(&phba->pcidev->dev,
6275 sizeof(uint32_t) * 2,
6276 &ras_fwlog->lwpd.phys,
6278 if (!ras_fwlog->lwpd.virt) {
6279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6280 "6185 LWPD Memory Alloc Failed\n");
6285 ras_fwlog->fw_buffcount = fwlog_buff_count;
6286 for (i = 0; i < ras_fwlog->fw_buffcount; i++) {
6287 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
6291 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6292 "6186 Memory Alloc failed FW logging");
6296 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6297 LPFC_RAS_MAX_ENTRY_SIZE,
6300 if (!dmabuf->virt) {
6303 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6304 "6187 DMA Alloc Failed FW logging");
6307 dmabuf->buffer_tag = i;
6308 list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
6313 lpfc_sli4_ras_dma_free(phba);
6319 * lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
6320 * @phba: pointer to lpfc hba data structure.
6321 * @pmboxq: pointer to the driver internal queue element for mailbox command.
6323 * Completion handler for driver's RAS MBX command to the device.
6326 lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6329 union lpfc_sli4_cfg_shdr *shdr;
6330 uint32_t shdr_status, shdr_add_status;
6331 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6335 shdr = (union lpfc_sli4_cfg_shdr *)
6336 &pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
6337 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6338 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6340 if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
6341 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
6342 "6188 FW LOG mailbox "
6343 "completed with status x%x add_status x%x,"
6344 " mbx status x%x\n",
6345 shdr_status, shdr_add_status, mb->mbxStatus);
6347 ras_fwlog->ras_hwsupport = false;
6351 ras_fwlog->ras_active = true;
6352 mempool_free(pmb, phba->mbox_mem_pool);
6357 /* Free RAS DMA memory */
6358 lpfc_sli4_ras_dma_free(phba);
6359 mempool_free(pmb, phba->mbox_mem_pool);
6363 * lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
6364 * @phba: pointer to lpfc hba data structure.
6365 * @fwlog_level: Logging verbosity level.
6366 * @fwlog_enable: Enable/Disable logging.
6368 * Initialize memory and post mailbox command to enable FW logging in host
6372 lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
6373 uint32_t fwlog_level,
6374 uint32_t fwlog_enable)
6376 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6377 struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
6378 struct lpfc_dmabuf *dmabuf;
6380 uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
6383 fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
6384 phba->cfg_ras_fwlog_buffsize);
6385 fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
6388 * If re-enabling FW logging support use earlier allocated
6389 * DMA buffers while posting MBX command.
6391 if (!ras_fwlog->lwpd.virt) {
6392 rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
6394 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6395 "6189 FW Log Memory Allocation Failed");
6400 /* Setup Mailbox command */
6401 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6404 "6190 RAS MBX Alloc Failed");
6409 ras_fwlog->fw_loglevel = fwlog_level;
6410 len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
6411 sizeof(struct lpfc_sli4_cfg_mhdr));
6413 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
6414 LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
6415 len, LPFC_SLI4_MBX_EMBED);
6417 mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
6418 bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
6420 bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
6421 ras_fwlog->fw_loglevel);
6422 bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
6423 ras_fwlog->fw_buffcount);
6424 bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
6425 LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
6427 /* Update DMA buffer address */
6428 list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
6429 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
6431 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
6432 putPaddrLow(dmabuf->phys);
6434 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
6435 putPaddrHigh(dmabuf->phys);
6438 /* Update LPWD address */
6439 mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
6440 mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
6442 mbox->vport = phba->pport;
6443 mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
6445 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6447 if (rc == MBX_NOT_FINISHED) {
6448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6449 "6191 FW-Log Mailbox failed. "
6450 "status %d mbxStatus : x%x", rc,
6451 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6452 mempool_free(mbox, phba->mbox_mem_pool);
6459 lpfc_sli4_ras_dma_free(phba);
6465 * lpfc_sli4_ras_setup - Check if RAS supported on the adapter
6466 * @phba: Pointer to HBA context object.
6468 * Check if RAS is supported on the adapter and initialize it.
6471 lpfc_sli4_ras_setup(struct lpfc_hba *phba)
6473 /* Check RAS FW Log needs to be enabled or not */
6474 if (lpfc_check_fwlog_support(phba))
6477 lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
6478 LPFC_RAS_ENABLE_LOGGING);
6482 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
6483 * @phba: Pointer to HBA context object.
6485 * This function allocates all SLI4 resource identifiers.
6488 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
6490 int i, rc, error = 0;
6491 uint16_t count, base;
6492 unsigned long longs;
6494 if (!phba->sli4_hba.rpi_hdrs_in_use)
6495 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
6496 if (phba->sli4_hba.extents_in_use) {
6498 * The port supports resource extents. The XRI, VPI, VFI, RPI
6499 * resource extent count must be read and allocated before
6500 * provisioning the resource id arrays.
6502 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6503 LPFC_IDX_RSRC_RDY) {
6505 * Extent-based resources are set - the driver could
6506 * be in a port reset. Figure out if any corrective
6507 * actions need to be taken.
6509 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6510 LPFC_RSC_TYPE_FCOE_VFI);
6513 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6514 LPFC_RSC_TYPE_FCOE_VPI);
6517 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6518 LPFC_RSC_TYPE_FCOE_XRI);
6521 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6522 LPFC_RSC_TYPE_FCOE_RPI);
6527 * It's possible that the number of resources
6528 * provided to this port instance changed between
6529 * resets. Detect this condition and reallocate
6530 * resources. Otherwise, there is no action.
6533 lpfc_printf_log(phba, KERN_INFO,
6534 LOG_MBOX | LOG_INIT,
6535 "2931 Detected extent resource "
6536 "change. Reallocating all "
6538 rc = lpfc_sli4_dealloc_extent(phba,
6539 LPFC_RSC_TYPE_FCOE_VFI);
6540 rc = lpfc_sli4_dealloc_extent(phba,
6541 LPFC_RSC_TYPE_FCOE_VPI);
6542 rc = lpfc_sli4_dealloc_extent(phba,
6543 LPFC_RSC_TYPE_FCOE_XRI);
6544 rc = lpfc_sli4_dealloc_extent(phba,
6545 LPFC_RSC_TYPE_FCOE_RPI);
6550 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6554 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6558 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6562 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6565 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6570 * The port does not support resource extents. The XRI, VPI,
6571 * VFI, RPI resource ids were determined from READ_CONFIG.
6572 * Just allocate the bitmasks and provision the resource id
6573 * arrays. If a port reset is active, the resources don't
6574 * need any action - just exit.
6576 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6577 LPFC_IDX_RSRC_RDY) {
6578 lpfc_sli4_dealloc_resource_identifiers(phba);
6579 lpfc_sli4_remove_rpis(phba);
6582 count = phba->sli4_hba.max_cfg_param.max_rpi;
6584 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6585 "3279 Invalid provisioning of "
6590 base = phba->sli4_hba.max_cfg_param.rpi_base;
6591 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6592 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6593 sizeof(unsigned long),
6595 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6599 phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
6601 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6603 goto free_rpi_bmask;
6606 for (i = 0; i < count; i++)
6607 phba->sli4_hba.rpi_ids[i] = base + i;
6610 count = phba->sli4_hba.max_cfg_param.max_vpi;
6612 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6613 "3280 Invalid provisioning of "
6618 base = phba->sli4_hba.max_cfg_param.vpi_base;
6619 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6620 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6622 if (unlikely(!phba->vpi_bmask)) {
6626 phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
6628 if (unlikely(!phba->vpi_ids)) {
6630 goto free_vpi_bmask;
6633 for (i = 0; i < count; i++)
6634 phba->vpi_ids[i] = base + i;
6637 count = phba->sli4_hba.max_cfg_param.max_xri;
6639 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6640 "3281 Invalid provisioning of "
6645 base = phba->sli4_hba.max_cfg_param.xri_base;
6646 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6647 phba->sli4_hba.xri_bmask = kcalloc(longs,
6648 sizeof(unsigned long),
6650 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6654 phba->sli4_hba.max_cfg_param.xri_used = 0;
6655 phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
6657 if (unlikely(!phba->sli4_hba.xri_ids)) {
6659 goto free_xri_bmask;
6662 for (i = 0; i < count; i++)
6663 phba->sli4_hba.xri_ids[i] = base + i;
6666 count = phba->sli4_hba.max_cfg_param.max_vfi;
6668 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6669 "3282 Invalid provisioning of "
6674 base = phba->sli4_hba.max_cfg_param.vfi_base;
6675 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6676 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6677 sizeof(unsigned long),
6679 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6683 phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
6685 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6687 goto free_vfi_bmask;
6690 for (i = 0; i < count; i++)
6691 phba->sli4_hba.vfi_ids[i] = base + i;
6694 * Mark all resources ready. An HBA reset doesn't need
6695 * to reset the initialization.
6697 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6703 kfree(phba->sli4_hba.vfi_bmask);
6704 phba->sli4_hba.vfi_bmask = NULL;
6706 kfree(phba->sli4_hba.xri_ids);
6707 phba->sli4_hba.xri_ids = NULL;
6709 kfree(phba->sli4_hba.xri_bmask);
6710 phba->sli4_hba.xri_bmask = NULL;
6712 kfree(phba->vpi_ids);
6713 phba->vpi_ids = NULL;
6715 kfree(phba->vpi_bmask);
6716 phba->vpi_bmask = NULL;
6718 kfree(phba->sli4_hba.rpi_ids);
6719 phba->sli4_hba.rpi_ids = NULL;
6721 kfree(phba->sli4_hba.rpi_bmask);
6722 phba->sli4_hba.rpi_bmask = NULL;
6728 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6729 * @phba: Pointer to HBA context object.
6731 * This function allocates the number of elements for the specified
6735 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6737 if (phba->sli4_hba.extents_in_use) {
6738 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6739 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6740 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6741 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6743 kfree(phba->vpi_bmask);
6744 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6745 kfree(phba->vpi_ids);
6746 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6747 kfree(phba->sli4_hba.xri_bmask);
6748 kfree(phba->sli4_hba.xri_ids);
6749 kfree(phba->sli4_hba.vfi_bmask);
6750 kfree(phba->sli4_hba.vfi_ids);
6751 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6752 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6759 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6760 * @phba: Pointer to HBA context object.
6761 * @type: The resource extent type.
6762 * @extnt_count: buffer to hold port extent count response
6763 * @extnt_size: buffer to hold port extent size response.
6765 * This function calls the port to read the host allocated extents
6766 * for a particular type.
6769 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6770 uint16_t *extnt_cnt, uint16_t *extnt_size)
6774 uint16_t curr_blks = 0;
6775 uint32_t req_len, emb_len;
6776 uint32_t alloc_len, mbox_tmo;
6777 struct list_head *blk_list_head;
6778 struct lpfc_rsrc_blks *rsrc_blk;
6780 void *virtaddr = NULL;
6781 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6782 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6783 union lpfc_sli4_cfg_shdr *shdr;
6786 case LPFC_RSC_TYPE_FCOE_VPI:
6787 blk_list_head = &phba->lpfc_vpi_blk_list;
6789 case LPFC_RSC_TYPE_FCOE_XRI:
6790 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6792 case LPFC_RSC_TYPE_FCOE_VFI:
6793 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6795 case LPFC_RSC_TYPE_FCOE_RPI:
6796 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6802 /* Count the number of extents currently allocatd for this type. */
6803 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6804 if (curr_blks == 0) {
6806 * The GET_ALLOCATED mailbox does not return the size,
6807 * just the count. The size should be just the size
6808 * stored in the current allocated block and all sizes
6809 * for an extent type are the same so set the return
6812 *extnt_size = rsrc_blk->rsrc_size;
6818 * Calculate the size of an embedded mailbox. The uint32_t
6819 * accounts for extents-specific word.
6821 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6825 * Presume the allocation and response will fit into an embedded
6826 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6828 emb = LPFC_SLI4_MBX_EMBED;
6830 if (req_len > emb_len) {
6831 req_len = curr_blks * sizeof(uint16_t) +
6832 sizeof(union lpfc_sli4_cfg_shdr) +
6834 emb = LPFC_SLI4_MBX_NEMBED;
6837 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6840 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6842 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6843 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6845 if (alloc_len < req_len) {
6846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6847 "2983 Allocated DMA memory size (x%x) is "
6848 "less than the requested DMA memory "
6849 "size (x%x)\n", alloc_len, req_len);
6853 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6859 if (!phba->sli4_hba.intr_enable)
6860 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6862 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6863 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6872 * Figure out where the response is located. Then get local pointers
6873 * to the response data. The port does not guarantee to respond to
6874 * all extents counts request so update the local variable with the
6875 * allocated count from the port.
6877 if (emb == LPFC_SLI4_MBX_EMBED) {
6878 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6879 shdr = &rsrc_ext->header.cfg_shdr;
6880 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6882 virtaddr = mbox->sge_array->addr[0];
6883 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6884 shdr = &n_rsrc->cfg_shdr;
6885 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6888 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6889 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6890 "2984 Failed to read allocated resources "
6891 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6893 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6894 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6899 lpfc_sli4_mbox_cmd_free(phba, mbox);
6904 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
6905 * @phba: pointer to lpfc hba data structure.
6906 * @pring: Pointer to driver SLI ring object.
6907 * @sgl_list: linked link of sgl buffers to post
6908 * @cnt: number of linked list buffers
6910 * This routine walks the list of buffers that have been allocated and
6911 * repost them to the port by using SGL block post. This is needed after a
6912 * pci_function_reset/warm_start or start. It attempts to construct blocks
6913 * of buffer sgls which contains contiguous xris and uses the non-embedded
6914 * SGL block post mailbox commands to post them to the port. For single
6915 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6916 * mailbox command for posting.
6918 * Returns: 0 = success, non-zero failure.
6921 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6922 struct list_head *sgl_list, int cnt)
6924 struct lpfc_sglq *sglq_entry = NULL;
6925 struct lpfc_sglq *sglq_entry_next = NULL;
6926 struct lpfc_sglq *sglq_entry_first = NULL;
6927 int status, total_cnt;
6928 int post_cnt = 0, num_posted = 0, block_cnt = 0;
6929 int last_xritag = NO_XRI;
6930 LIST_HEAD(prep_sgl_list);
6931 LIST_HEAD(blck_sgl_list);
6932 LIST_HEAD(allc_sgl_list);
6933 LIST_HEAD(post_sgl_list);
6934 LIST_HEAD(free_sgl_list);
6936 spin_lock_irq(&phba->hbalock);
6937 spin_lock(&phba->sli4_hba.sgl_list_lock);
6938 list_splice_init(sgl_list, &allc_sgl_list);
6939 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6940 spin_unlock_irq(&phba->hbalock);
6943 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6944 &allc_sgl_list, list) {
6945 list_del_init(&sglq_entry->list);
6947 if ((last_xritag != NO_XRI) &&
6948 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6949 /* a hole in xri block, form a sgl posting block */
6950 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6951 post_cnt = block_cnt - 1;
6952 /* prepare list for next posting block */
6953 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6956 /* prepare list for next posting block */
6957 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6958 /* enough sgls for non-embed sgl mbox command */
6959 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6960 list_splice_init(&prep_sgl_list,
6962 post_cnt = block_cnt;
6968 /* keep track of last sgl's xritag */
6969 last_xritag = sglq_entry->sli4_xritag;
6971 /* end of repost sgl list condition for buffers */
6972 if (num_posted == total_cnt) {
6973 if (post_cnt == 0) {
6974 list_splice_init(&prep_sgl_list,
6976 post_cnt = block_cnt;
6977 } else if (block_cnt == 1) {
6978 status = lpfc_sli4_post_sgl(phba,
6979 sglq_entry->phys, 0,
6980 sglq_entry->sli4_xritag);
6982 /* successful, put sgl to posted list */
6983 list_add_tail(&sglq_entry->list,
6986 /* Failure, put sgl to free list */
6987 lpfc_printf_log(phba, KERN_WARNING,
6989 "3159 Failed to post "
6990 "sgl, xritag:x%x\n",
6991 sglq_entry->sli4_xritag);
6992 list_add_tail(&sglq_entry->list,
6999 /* continue until a nembed page worth of sgls */
7003 /* post the buffer list sgls as a block */
7004 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
7008 /* success, put sgl list to posted sgl list */
7009 list_splice_init(&blck_sgl_list, &post_sgl_list);
7011 /* Failure, put sgl list to free sgl list */
7012 sglq_entry_first = list_first_entry(&blck_sgl_list,
7015 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7016 "3160 Failed to post sgl-list, "
7018 sglq_entry_first->sli4_xritag,
7019 (sglq_entry_first->sli4_xritag +
7021 list_splice_init(&blck_sgl_list, &free_sgl_list);
7022 total_cnt -= post_cnt;
7025 /* don't reset xirtag due to hole in xri block */
7027 last_xritag = NO_XRI;
7029 /* reset sgl post count for next round of posting */
7033 /* free the sgls failed to post */
7034 lpfc_free_sgl_list(phba, &free_sgl_list);
7036 /* push sgls posted to the available list */
7037 if (!list_empty(&post_sgl_list)) {
7038 spin_lock_irq(&phba->hbalock);
7039 spin_lock(&phba->sli4_hba.sgl_list_lock);
7040 list_splice_init(&post_sgl_list, sgl_list);
7041 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7042 spin_unlock_irq(&phba->hbalock);
7044 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7045 "3161 Failure to post sgl to port.\n");
7049 /* return the number of XRIs actually posted */
7054 * lpfc_sli4_repost_io_sgl_list - Repost all the allocated nvme buffer sgls
7055 * @phba: pointer to lpfc hba data structure.
7057 * This routine walks the list of nvme buffers that have been allocated and
7058 * repost them to the port by using SGL block post. This is needed after a
7059 * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine
7060 * is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list
7061 * to the lpfc_io_buf_list. If the repost fails, reject all nvme buffers.
7063 * Returns: 0 = success, non-zero failure.
7066 lpfc_sli4_repost_io_sgl_list(struct lpfc_hba *phba)
7068 LIST_HEAD(post_nblist);
7069 int num_posted, rc = 0;
7071 /* get all NVME buffers need to repost to a local list */
7072 lpfc_io_buf_flush(phba, &post_nblist);
7074 /* post the list of nvme buffer sgls to port if available */
7075 if (!list_empty(&post_nblist)) {
7076 num_posted = lpfc_sli4_post_io_sgl_list(
7077 phba, &post_nblist, phba->sli4_hba.io_xri_cnt);
7078 /* failed to post any nvme buffer, return error */
7079 if (num_posted == 0)
7086 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
7090 len = sizeof(struct lpfc_mbx_set_host_data) -
7091 sizeof(struct lpfc_sli4_cfg_mhdr);
7092 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7093 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
7094 LPFC_SLI4_MBX_EMBED);
7096 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
7097 mbox->u.mqe.un.set_host_data.param_len =
7098 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
7099 snprintf(mbox->u.mqe.un.set_host_data.data,
7100 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
7101 "Linux %s v"LPFC_DRIVER_VERSION,
7102 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
7106 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
7107 struct lpfc_queue *drq, int count, int idx)
7110 struct lpfc_rqe hrqe;
7111 struct lpfc_rqe drqe;
7112 struct lpfc_rqb *rqbp;
7113 unsigned long flags;
7114 struct rqb_dmabuf *rqb_buffer;
7115 LIST_HEAD(rqb_buf_list);
7117 spin_lock_irqsave(&phba->hbalock, flags);
7119 for (i = 0; i < count; i++) {
7120 /* IF RQ is already full, don't bother */
7121 if (rqbp->buffer_count + i >= rqbp->entry_count - 1)
7123 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
7126 rqb_buffer->hrq = hrq;
7127 rqb_buffer->drq = drq;
7128 rqb_buffer->idx = idx;
7129 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
7131 while (!list_empty(&rqb_buf_list)) {
7132 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
7135 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
7136 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
7137 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
7138 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
7139 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
7141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7142 "6421 Cannot post to HRQ %d: %x %x %x "
7150 rqbp->rqb_free_buffer(phba, rqb_buffer);
7152 list_add_tail(&rqb_buffer->hbuf.list,
7153 &rqbp->rqb_buffer_list);
7154 rqbp->buffer_count++;
7157 spin_unlock_irqrestore(&phba->hbalock, flags);
7162 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
7163 * @phba: Pointer to HBA context object.
7165 * This function is the main SLI4 device initialization PCI function. This
7166 * function is called by the HBA initialization code, HBA reset code and
7167 * HBA error attention handler code. Caller is not required to hold any
7171 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
7174 LPFC_MBOXQ_t *mboxq;
7175 struct lpfc_mqe *mqe;
7178 uint32_t ftr_rsp = 0;
7179 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
7180 struct lpfc_vport *vport = phba->pport;
7181 struct lpfc_dmabuf *mp;
7182 struct lpfc_rqb *rqbp;
7184 /* Perform a PCI function reset to start from clean */
7185 rc = lpfc_pci_function_reset(phba);
7189 /* Check the HBA Host Status Register for readyness */
7190 rc = lpfc_sli4_post_status_check(phba);
7194 spin_lock_irq(&phba->hbalock);
7195 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
7196 spin_unlock_irq(&phba->hbalock);
7200 * Allocate a single mailbox container for initializing the
7203 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7207 /* Issue READ_REV to collect vpd and FW information. */
7208 vpd_size = SLI4_PAGE_SIZE;
7209 vpd = kzalloc(vpd_size, GFP_KERNEL);
7215 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
7221 mqe = &mboxq->u.mqe;
7222 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
7223 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
7224 phba->hba_flag |= HBA_FCOE_MODE;
7225 phba->fcp_embed_io = 0; /* SLI4 FC support only */
7227 phba->hba_flag &= ~HBA_FCOE_MODE;
7230 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
7232 phba->hba_flag |= HBA_FIP_SUPPORT;
7234 phba->hba_flag &= ~HBA_FIP_SUPPORT;
7236 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
7238 if (phba->sli_rev != LPFC_SLI_REV4) {
7239 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7240 "0376 READ_REV Error. SLI Level %d "
7241 "FCoE enabled %d\n",
7242 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
7249 * Continue initialization with default values even if driver failed
7250 * to read FCoE param config regions, only read parameters if the
7253 if (phba->hba_flag & HBA_FCOE_MODE &&
7254 lpfc_sli4_read_fcoe_params(phba))
7255 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
7256 "2570 Failed to read FCoE parameters\n");
7259 * Retrieve sli4 device physical port name, failure of doing it
7260 * is considered as non-fatal.
7262 rc = lpfc_sli4_retrieve_pport_name(phba);
7264 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7265 "3080 Successful retrieving SLI4 device "
7266 "physical port name: %s.\n", phba->Port);
7269 * Evaluate the read rev and vpd data. Populate the driver
7270 * state with the results. If this routine fails, the failure
7271 * is not fatal as the driver will use generic values.
7273 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
7274 if (unlikely(!rc)) {
7275 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7276 "0377 Error %d parsing vpd. "
7277 "Using defaults.\n", rc);
7282 /* Save information as VPD data */
7283 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
7284 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
7287 * This is because first G7 ASIC doesn't support the standard
7288 * 0x5a NVME cmd descriptor type/subtype
7290 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7291 LPFC_SLI_INTF_IF_TYPE_6) &&
7292 (phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
7293 (phba->vpd.rev.smRev == 0) &&
7294 (phba->cfg_nvme_embed_cmd == 1))
7295 phba->cfg_nvme_embed_cmd = 0;
7297 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
7298 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
7300 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
7302 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
7304 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
7306 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
7307 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
7308 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
7309 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
7310 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
7311 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
7312 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7313 "(%d):0380 READ_REV Status x%x "
7314 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
7315 mboxq->vport ? mboxq->vport->vpi : 0,
7316 bf_get(lpfc_mqe_status, mqe),
7317 phba->vpd.rev.opFwName,
7318 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
7319 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
7321 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
7322 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
7323 if (phba->pport->cfg_lun_queue_depth > rc) {
7324 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7325 "3362 LUN queue depth changed from %d to %d\n",
7326 phba->pport->cfg_lun_queue_depth, rc);
7327 phba->pport->cfg_lun_queue_depth = rc;
7330 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7331 LPFC_SLI_INTF_IF_TYPE_0) {
7332 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
7333 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7334 if (rc == MBX_SUCCESS) {
7335 phba->hba_flag |= HBA_RECOVERABLE_UE;
7336 /* Set 1Sec interval to detect UE */
7337 phba->eratt_poll_interval = 1;
7338 phba->sli4_hba.ue_to_sr = bf_get(
7339 lpfc_mbx_set_feature_UESR,
7340 &mboxq->u.mqe.un.set_feature);
7341 phba->sli4_hba.ue_to_rp = bf_get(
7342 lpfc_mbx_set_feature_UERP,
7343 &mboxq->u.mqe.un.set_feature);
7347 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
7348 /* Enable MDS Diagnostics only if the SLI Port supports it */
7349 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
7350 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7351 if (rc != MBX_SUCCESS)
7352 phba->mds_diags_support = 0;
7356 * Discover the port's supported feature set and match it against the
7359 lpfc_request_features(phba, mboxq);
7360 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7367 * The port must support FCP initiator mode as this is the
7368 * only mode running in the host.
7370 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
7371 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7372 "0378 No support for fcpi mode.\n");
7376 /* Performance Hints are ONLY for FCoE */
7377 if (phba->hba_flag & HBA_FCOE_MODE) {
7378 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
7379 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
7381 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
7385 * If the port cannot support the host's requested features
7386 * then turn off the global config parameters to disable the
7387 * feature in the driver. This is not a fatal error.
7389 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
7390 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
7391 phba->cfg_enable_bg = 0;
7392 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
7397 if (phba->max_vpi && phba->cfg_enable_npiv &&
7398 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7402 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7403 "0379 Feature Mismatch Data: x%08x %08x "
7404 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
7405 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
7406 phba->cfg_enable_npiv, phba->max_vpi);
7407 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
7408 phba->cfg_enable_bg = 0;
7409 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7410 phba->cfg_enable_npiv = 0;
7413 /* These SLI3 features are assumed in SLI4 */
7414 spin_lock_irq(&phba->hbalock);
7415 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
7416 spin_unlock_irq(&phba->hbalock);
7419 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
7420 * calls depends on these resources to complete port setup.
7422 rc = lpfc_sli4_alloc_resource_identifiers(phba);
7424 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7425 "2920 Failed to alloc Resource IDs "
7430 lpfc_set_host_data(phba, mboxq);
7432 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7434 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7435 "2134 Failed to set host os driver version %x",
7439 /* Read the port's service parameters. */
7440 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
7442 phba->link_state = LPFC_HBA_ERROR;
7447 mboxq->vport = vport;
7448 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7449 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
7450 if (rc == MBX_SUCCESS) {
7451 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
7456 * This memory was allocated by the lpfc_read_sparam routine. Release
7457 * it to the mbuf pool.
7459 lpfc_mbuf_free(phba, mp->virt, mp->phys);
7461 mboxq->ctx_buf = NULL;
7463 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7464 "0382 READ_SPARAM command failed "
7465 "status %d, mbxStatus x%x\n",
7466 rc, bf_get(lpfc_mqe_status, mqe));
7467 phba->link_state = LPFC_HBA_ERROR;
7472 lpfc_update_vport_wwn(vport);
7474 /* Update the fc_host data structures with new wwn. */
7475 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
7476 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
7478 /* Create all the SLI4 queues */
7479 rc = lpfc_sli4_queue_create(phba);
7481 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7482 "3089 Failed to allocate queues\n");
7486 /* Set up all the queues to the device */
7487 rc = lpfc_sli4_queue_setup(phba);
7489 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7490 "0381 Error %d during queue setup.\n ", rc);
7491 goto out_stop_timers;
7493 /* Initialize the driver internal SLI layer lists. */
7494 lpfc_sli4_setup(phba);
7495 lpfc_sli4_queue_init(phba);
7497 /* update host els xri-sgl sizes and mappings */
7498 rc = lpfc_sli4_els_sgl_update(phba);
7500 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7501 "1400 Failed to update xri-sgl size and "
7502 "mapping: %d\n", rc);
7503 goto out_destroy_queue;
7506 /* register the els sgl pool to the port */
7507 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
7508 phba->sli4_hba.els_xri_cnt);
7509 if (unlikely(rc < 0)) {
7510 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7511 "0582 Error %d during els sgl post "
7514 goto out_destroy_queue;
7516 phba->sli4_hba.els_xri_cnt = rc;
7518 if (phba->nvmet_support) {
7519 /* update host nvmet xri-sgl sizes and mappings */
7520 rc = lpfc_sli4_nvmet_sgl_update(phba);
7522 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7523 "6308 Failed to update nvmet-sgl size "
7524 "and mapping: %d\n", rc);
7525 goto out_destroy_queue;
7528 /* register the nvmet sgl pool to the port */
7529 rc = lpfc_sli4_repost_sgl_list(
7531 &phba->sli4_hba.lpfc_nvmet_sgl_list,
7532 phba->sli4_hba.nvmet_xri_cnt);
7533 if (unlikely(rc < 0)) {
7534 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7535 "3117 Error %d during nvmet "
7538 goto out_destroy_queue;
7540 phba->sli4_hba.nvmet_xri_cnt = rc;
7542 cnt = phba->cfg_iocb_cnt * 1024;
7543 /* We need 1 iocbq for every SGL, for IO processing */
7544 cnt += phba->sli4_hba.nvmet_xri_cnt;
7546 /* update host common xri-sgl sizes and mappings */
7547 rc = lpfc_sli4_io_sgl_update(phba);
7549 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7550 "6082 Failed to update nvme-sgl size "
7551 "and mapping: %d\n", rc);
7552 goto out_destroy_queue;
7555 /* register the allocated common sgl pool to the port */
7556 rc = lpfc_sli4_repost_io_sgl_list(phba);
7558 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7559 "6116 Error %d during nvme sgl post "
7561 /* Some NVME buffers were moved to abort nvme list */
7562 /* A pci function reset will repost them */
7564 goto out_destroy_queue;
7566 cnt = phba->cfg_iocb_cnt * 1024;
7569 if (!phba->sli.iocbq_lookup) {
7570 /* Initialize and populate the iocb list per host */
7571 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7572 "2821 initialize iocb list %d total %d\n",
7573 phba->cfg_iocb_cnt, cnt);
7574 rc = lpfc_init_iocb_list(phba, cnt);
7576 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7577 "1413 Failed to init iocb list.\n");
7578 goto out_destroy_queue;
7582 if (phba->nvmet_support)
7583 lpfc_nvmet_create_targetport(phba);
7585 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
7586 /* Post initial buffers to all RQs created */
7587 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
7588 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
7589 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
7590 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
7591 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
7592 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
7593 rqbp->buffer_count = 0;
7595 lpfc_post_rq_buffer(
7596 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
7597 phba->sli4_hba.nvmet_mrq_data[i],
7598 phba->cfg_nvmet_mrq_post, i);
7602 /* Post the rpi header region to the device. */
7603 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7605 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7606 "0393 Error %d during rpi post operation\n",
7609 goto out_destroy_queue;
7611 lpfc_sli4_node_prep(phba);
7613 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
7614 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
7616 * The FC Port needs to register FCFI (index 0)
7618 lpfc_reg_fcfi(phba, mboxq);
7619 mboxq->vport = phba->pport;
7620 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7621 if (rc != MBX_SUCCESS)
7622 goto out_unset_queue;
7624 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7625 &mboxq->u.mqe.un.reg_fcfi);
7627 /* We are a NVME Target mode with MRQ > 1 */
7629 /* First register the FCFI */
7630 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7631 mboxq->vport = phba->pport;
7632 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7633 if (rc != MBX_SUCCESS)
7634 goto out_unset_queue;
7636 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7637 &mboxq->u.mqe.un.reg_fcfi_mrq);
7639 /* Next register the MRQs */
7640 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7641 mboxq->vport = phba->pport;
7642 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7643 if (rc != MBX_SUCCESS)
7644 goto out_unset_queue;
7647 /* Check if the port is configured to be disabled */
7648 lpfc_sli_read_link_ste(phba);
7651 /* Arm the CQs and then EQs on device */
7652 lpfc_sli4_arm_cqeq_intr(phba);
7654 /* Indicate device interrupt mode */
7655 phba->sli4_hba.intr_enable = 1;
7657 /* Allow asynchronous mailbox command to go through */
7658 spin_lock_irq(&phba->hbalock);
7659 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7660 spin_unlock_irq(&phba->hbalock);
7662 /* Post receive buffers to the device */
7663 lpfc_sli4_rb_setup(phba);
7665 /* Reset HBA FCF states after HBA reset */
7666 phba->fcf.fcf_flag = 0;
7667 phba->fcf.current_rec.flag = 0;
7669 /* Start the ELS watchdog timer */
7670 mod_timer(&vport->els_tmofunc,
7671 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
7673 /* Start heart beat timer */
7674 mod_timer(&phba->hb_tmofunc,
7675 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
7676 phba->hb_outstanding = 0;
7677 phba->last_completion_time = jiffies;
7679 /* Start error attention (ERATT) polling timer */
7680 mod_timer(&phba->eratt_poll,
7681 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
7683 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7684 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7685 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7687 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7688 "2829 This device supports "
7689 "Advanced Error Reporting (AER)\n");
7690 spin_lock_irq(&phba->hbalock);
7691 phba->hba_flag |= HBA_AER_ENABLED;
7692 spin_unlock_irq(&phba->hbalock);
7694 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7695 "2830 This device does not support "
7696 "Advanced Error Reporting (AER)\n");
7697 phba->cfg_aer_support = 0;
7703 * The port is ready, set the host's link state to LINK_DOWN
7704 * in preparation for link interrupts.
7706 spin_lock_irq(&phba->hbalock);
7707 phba->link_state = LPFC_LINK_DOWN;
7709 /* Check if physical ports are trunked */
7710 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
7711 phba->trunk_link.link0.state = LPFC_LINK_DOWN;
7712 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
7713 phba->trunk_link.link1.state = LPFC_LINK_DOWN;
7714 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
7715 phba->trunk_link.link2.state = LPFC_LINK_DOWN;
7716 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
7717 phba->trunk_link.link3.state = LPFC_LINK_DOWN;
7718 spin_unlock_irq(&phba->hbalock);
7720 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7721 (phba->hba_flag & LINK_DISABLED)) {
7722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7723 "3103 Adapter Link is disabled.\n");
7724 lpfc_down_link(phba, mboxq);
7725 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7726 if (rc != MBX_SUCCESS) {
7727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7728 "3104 Adapter failed to issue "
7729 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7730 goto out_unset_queue;
7732 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
7733 /* don't perform init_link on SLI4 FC port loopback test */
7734 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7735 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7737 goto out_unset_queue;
7740 mempool_free(mboxq, phba->mbox_mem_pool);
7743 /* Unset all the queues set up in this routine when error out */
7744 lpfc_sli4_queue_unset(phba);
7746 lpfc_free_iocb_list(phba);
7747 lpfc_sli4_queue_destroy(phba);
7749 lpfc_stop_hba_timers(phba);
7751 mempool_free(mboxq, phba->mbox_mem_pool);
7756 * lpfc_mbox_timeout - Timeout call back function for mbox timer
7757 * @ptr: context object - pointer to hba structure.
7759 * This is the callback function for mailbox timer. The mailbox
7760 * timer is armed when a new mailbox command is issued and the timer
7761 * is deleted when the mailbox complete. The function is called by
7762 * the kernel timer code when a mailbox does not complete within
7763 * expected time. This function wakes up the worker thread to
7764 * process the mailbox timeout and returns. All the processing is
7765 * done by the worker thread function lpfc_mbox_timeout_handler.
7768 lpfc_mbox_timeout(struct timer_list *t)
7770 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
7771 unsigned long iflag;
7772 uint32_t tmo_posted;
7774 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
7775 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
7777 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7778 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7781 lpfc_worker_wake_up(phba);
7786 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7788 * @phba: Pointer to HBA context object.
7790 * This function checks if any mailbox completions are present on the mailbox
7794 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7798 struct lpfc_queue *mcq;
7799 struct lpfc_mcqe *mcqe;
7800 bool pending_completions = false;
7803 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7806 /* Check for completions on mailbox completion queue */
7808 mcq = phba->sli4_hba.mbx_cq;
7809 idx = mcq->hba_index;
7810 qe_valid = mcq->qe_valid;
7811 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe) == qe_valid) {
7812 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
7813 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7814 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7815 pending_completions = true;
7818 idx = (idx + 1) % mcq->entry_count;
7819 if (mcq->hba_index == idx)
7822 /* if the index wrapped around, toggle the valid bit */
7823 if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
7824 qe_valid = (qe_valid) ? 0 : 1;
7826 return pending_completions;
7831 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7833 * @phba: Pointer to HBA context object.
7835 * For sli4, it is possible to miss an interrupt. As such mbox completions
7836 * maybe missed causing erroneous mailbox timeouts to occur. This function
7837 * checks to see if mbox completions are on the mailbox completion queue
7838 * and will process all the completions associated with the eq for the
7839 * mailbox completion queue.
7842 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7844 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
7846 struct lpfc_queue *fpeq = NULL;
7847 struct lpfc_eqe *eqe;
7850 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7853 /* Find the eq associated with the mcq */
7856 for (eqidx = 0; eqidx < phba->cfg_hdw_queue; eqidx++)
7857 if (sli4_hba->hdwq[eqidx].hba_eq->queue_id ==
7858 sli4_hba->mbx_cq->assoc_qid) {
7859 fpeq = sli4_hba->hdwq[eqidx].hba_eq;
7865 /* Turn off interrupts from this EQ */
7867 sli4_hba->sli4_eq_clr_intr(fpeq);
7869 /* Check to see if a mbox completion is pending */
7871 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7874 * If a mbox completion is pending, process all the events on EQ
7875 * associated with the mbox completion queue (this could include
7876 * mailbox commands, async events, els commands, receive queue data
7881 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
7882 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
7883 fpeq->EQ_processed++;
7886 /* Always clear and re-arm the EQ */
7888 sli4_hba->sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
7890 return mbox_pending;
7895 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
7896 * @phba: Pointer to HBA context object.
7898 * This function is called from worker thread when a mailbox command times out.
7899 * The caller is not required to hold any locks. This function will reset the
7900 * HBA and recover all the pending commands.
7903 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7905 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
7906 MAILBOX_t *mb = NULL;
7908 struct lpfc_sli *psli = &phba->sli;
7910 /* If the mailbox completed, process the completion and return */
7911 if (lpfc_sli4_process_missed_mbox_completions(phba))
7916 /* Check the pmbox pointer first. There is a race condition
7917 * between the mbox timeout handler getting executed in the
7918 * worklist and the mailbox actually completing. When this
7919 * race condition occurs, the mbox_active will be NULL.
7921 spin_lock_irq(&phba->hbalock);
7922 if (pmbox == NULL) {
7923 lpfc_printf_log(phba, KERN_WARNING,
7925 "0353 Active Mailbox cleared - mailbox timeout "
7927 spin_unlock_irq(&phba->hbalock);
7931 /* Mbox cmd <mbxCommand> timeout */
7932 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7933 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
7935 phba->pport->port_state,
7937 phba->sli.mbox_active);
7938 spin_unlock_irq(&phba->hbalock);
7940 /* Setting state unknown so lpfc_sli_abort_iocb_ring
7941 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
7942 * it to fail all outstanding SCSI IO.
7944 spin_lock_irq(&phba->pport->work_port_lock);
7945 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
7946 spin_unlock_irq(&phba->pport->work_port_lock);
7947 spin_lock_irq(&phba->hbalock);
7948 phba->link_state = LPFC_LINK_UNKNOWN;
7949 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7950 spin_unlock_irq(&phba->hbalock);
7952 lpfc_sli_abort_fcp_rings(phba);
7954 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7955 "0345 Resetting board due to mailbox timeout\n");
7957 /* Reset the HBA device */
7958 lpfc_reset_hba(phba);
7962 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
7963 * @phba: Pointer to HBA context object.
7964 * @pmbox: Pointer to mailbox object.
7965 * @flag: Flag indicating how the mailbox need to be processed.
7967 * This function is called by discovery code and HBA management code
7968 * to submit a mailbox command to firmware with SLI-3 interface spec. This
7969 * function gets the hbalock to protect the data structures.
7970 * The mailbox command can be submitted in polling mode, in which case
7971 * this function will wait in a polling loop for the completion of the
7973 * If the mailbox is submitted in no_wait mode (not polling) the
7974 * function will submit the command and returns immediately without waiting
7975 * for the mailbox completion. The no_wait is supported only when HBA
7976 * is in SLI2/SLI3 mode - interrupts are enabled.
7977 * The SLI interface allows only one mailbox pending at a time. If the
7978 * mailbox is issued in polling mode and there is already a mailbox
7979 * pending, then the function will return an error. If the mailbox is issued
7980 * in NO_WAIT mode and there is a mailbox pending already, the function
7981 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
7982 * The sli layer owns the mailbox object until the completion of mailbox
7983 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
7984 * return codes the caller owns the mailbox command after the return of
7988 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
7992 struct lpfc_sli *psli = &phba->sli;
7993 uint32_t status, evtctr;
7994 uint32_t ha_copy, hc_copy;
7996 unsigned long timeout;
7997 unsigned long drvr_flag = 0;
7998 uint32_t word0, ldata;
7999 void __iomem *to_slim;
8000 int processing_queue = 0;
8002 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8004 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8005 /* processing mbox queue from intr_handler */
8006 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8007 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8010 processing_queue = 1;
8011 pmbox = lpfc_mbox_get(phba);
8013 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8018 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
8019 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
8021 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8022 lpfc_printf_log(phba, KERN_ERR,
8023 LOG_MBOX | LOG_VPORT,
8024 "1806 Mbox x%x failed. No vport\n",
8025 pmbox->u.mb.mbxCommand);
8027 goto out_not_finished;
8031 /* If the PCI channel is in offline state, do not post mbox. */
8032 if (unlikely(pci_channel_offline(phba->pcidev))) {
8033 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8034 goto out_not_finished;
8037 /* If HBA has a deferred error attention, fail the iocb. */
8038 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8039 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8040 goto out_not_finished;
8046 status = MBX_SUCCESS;
8048 if (phba->link_state == LPFC_HBA_ERROR) {
8049 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8051 /* Mbox command <mbxCommand> cannot issue */
8052 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8053 "(%d):0311 Mailbox command x%x cannot "
8054 "issue Data: x%x x%x\n",
8055 pmbox->vport ? pmbox->vport->vpi : 0,
8056 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8057 goto out_not_finished;
8060 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
8061 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
8062 !(hc_copy & HC_MBINT_ENA)) {
8063 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8064 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8065 "(%d):2528 Mailbox command x%x cannot "
8066 "issue Data: x%x x%x\n",
8067 pmbox->vport ? pmbox->vport->vpi : 0,
8068 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8069 goto out_not_finished;
8073 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8074 /* Polling for a mbox command when another one is already active
8075 * is not allowed in SLI. Also, the driver must have established
8076 * SLI2 mode to queue and process multiple mbox commands.
8079 if (flag & MBX_POLL) {
8080 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8082 /* Mbox command <mbxCommand> cannot issue */
8083 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8084 "(%d):2529 Mailbox command x%x "
8085 "cannot issue Data: x%x x%x\n",
8086 pmbox->vport ? pmbox->vport->vpi : 0,
8087 pmbox->u.mb.mbxCommand,
8088 psli->sli_flag, flag);
8089 goto out_not_finished;
8092 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
8093 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8094 /* Mbox command <mbxCommand> cannot issue */
8095 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8096 "(%d):2530 Mailbox command x%x "
8097 "cannot issue Data: x%x x%x\n",
8098 pmbox->vport ? pmbox->vport->vpi : 0,
8099 pmbox->u.mb.mbxCommand,
8100 psli->sli_flag, flag);
8101 goto out_not_finished;
8104 /* Another mailbox command is still being processed, queue this
8105 * command to be processed later.
8107 lpfc_mbox_put(phba, pmbox);
8109 /* Mbox cmd issue - BUSY */
8110 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8111 "(%d):0308 Mbox cmd issue - BUSY Data: "
8112 "x%x x%x x%x x%x\n",
8113 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
8115 phba->pport ? phba->pport->port_state : 0xff,
8116 psli->sli_flag, flag);
8118 psli->slistat.mbox_busy++;
8119 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8122 lpfc_debugfs_disc_trc(pmbox->vport,
8123 LPFC_DISC_TRC_MBOX_VPORT,
8124 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
8125 (uint32_t)mbx->mbxCommand,
8126 mbx->un.varWords[0], mbx->un.varWords[1]);
8129 lpfc_debugfs_disc_trc(phba->pport,
8131 "MBOX Bsy: cmd:x%x mb:x%x x%x",
8132 (uint32_t)mbx->mbxCommand,
8133 mbx->un.varWords[0], mbx->un.varWords[1]);
8139 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8141 /* If we are not polling, we MUST be in SLI2 mode */
8142 if (flag != MBX_POLL) {
8143 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
8144 (mbx->mbxCommand != MBX_KILL_BOARD)) {
8145 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8146 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8147 /* Mbox command <mbxCommand> cannot issue */
8148 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8149 "(%d):2531 Mailbox command x%x "
8150 "cannot issue Data: x%x x%x\n",
8151 pmbox->vport ? pmbox->vport->vpi : 0,
8152 pmbox->u.mb.mbxCommand,
8153 psli->sli_flag, flag);
8154 goto out_not_finished;
8156 /* timeout active mbox command */
8157 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8159 mod_timer(&psli->mbox_tmo, jiffies + timeout);
8162 /* Mailbox cmd <cmd> issue */
8163 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8164 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
8166 pmbox->vport ? pmbox->vport->vpi : 0,
8168 phba->pport ? phba->pport->port_state : 0xff,
8169 psli->sli_flag, flag);
8171 if (mbx->mbxCommand != MBX_HEARTBEAT) {
8173 lpfc_debugfs_disc_trc(pmbox->vport,
8174 LPFC_DISC_TRC_MBOX_VPORT,
8175 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8176 (uint32_t)mbx->mbxCommand,
8177 mbx->un.varWords[0], mbx->un.varWords[1]);
8180 lpfc_debugfs_disc_trc(phba->pport,
8182 "MBOX Send: cmd:x%x mb:x%x x%x",
8183 (uint32_t)mbx->mbxCommand,
8184 mbx->un.varWords[0], mbx->un.varWords[1]);
8188 psli->slistat.mbox_cmd++;
8189 evtctr = psli->slistat.mbox_event;
8191 /* next set own bit for the adapter and copy over command word */
8192 mbx->mbxOwner = OWN_CHIP;
8194 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8195 /* Populate mbox extension offset word. */
8196 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
8197 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8198 = (uint8_t *)phba->mbox_ext
8199 - (uint8_t *)phba->mbox;
8202 /* Copy the mailbox extension data */
8203 if (pmbox->in_ext_byte_len && pmbox->ctx_buf) {
8204 lpfc_sli_pcimem_bcopy(pmbox->ctx_buf,
8205 (uint8_t *)phba->mbox_ext,
8206 pmbox->in_ext_byte_len);
8208 /* Copy command data to host SLIM area */
8209 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
8211 /* Populate mbox extension offset word. */
8212 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
8213 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8214 = MAILBOX_HBA_EXT_OFFSET;
8216 /* Copy the mailbox extension data */
8217 if (pmbox->in_ext_byte_len && pmbox->ctx_buf)
8218 lpfc_memcpy_to_slim(phba->MBslimaddr +
8219 MAILBOX_HBA_EXT_OFFSET,
8220 pmbox->ctx_buf, pmbox->in_ext_byte_len);
8222 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8223 /* copy command data into host mbox for cmpl */
8224 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
8227 /* First copy mbox command data to HBA SLIM, skip past first
8229 to_slim = phba->MBslimaddr + sizeof (uint32_t);
8230 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
8231 MAILBOX_CMD_SIZE - sizeof (uint32_t));
8233 /* Next copy over first word, with mbxOwner set */
8234 ldata = *((uint32_t *)mbx);
8235 to_slim = phba->MBslimaddr;
8236 writel(ldata, to_slim);
8237 readl(to_slim); /* flush */
8239 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8240 /* switch over to host mailbox */
8241 psli->sli_flag |= LPFC_SLI_ACTIVE;
8248 /* Set up reference to mailbox command */
8249 psli->mbox_active = pmbox;
8250 /* Interrupt board to do it */
8251 writel(CA_MBATT, phba->CAregaddr);
8252 readl(phba->CAregaddr); /* flush */
8253 /* Don't wait for it to finish, just return */
8257 /* Set up null reference to mailbox command */
8258 psli->mbox_active = NULL;
8259 /* Interrupt board to do it */
8260 writel(CA_MBATT, phba->CAregaddr);
8261 readl(phba->CAregaddr); /* flush */
8263 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8264 /* First read mbox status word */
8265 word0 = *((uint32_t *)phba->mbox);
8266 word0 = le32_to_cpu(word0);
8268 /* First read mbox status word */
8269 if (lpfc_readl(phba->MBslimaddr, &word0)) {
8270 spin_unlock_irqrestore(&phba->hbalock,
8272 goto out_not_finished;
8276 /* Read the HBA Host Attention Register */
8277 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8278 spin_unlock_irqrestore(&phba->hbalock,
8280 goto out_not_finished;
8282 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8285 /* Wait for command to complete */
8286 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
8287 (!(ha_copy & HA_MBATT) &&
8288 (phba->link_state > LPFC_WARM_START))) {
8289 if (time_after(jiffies, timeout)) {
8290 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8291 spin_unlock_irqrestore(&phba->hbalock,
8293 goto out_not_finished;
8296 /* Check if we took a mbox interrupt while we were
8298 if (((word0 & OWN_CHIP) != OWN_CHIP)
8299 && (evtctr != psli->slistat.mbox_event))
8303 spin_unlock_irqrestore(&phba->hbalock,
8306 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8309 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8310 /* First copy command data */
8311 word0 = *((uint32_t *)phba->mbox);
8312 word0 = le32_to_cpu(word0);
8313 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
8316 /* Check real SLIM for any errors */
8317 slimword0 = readl(phba->MBslimaddr);
8318 slimmb = (MAILBOX_t *) & slimword0;
8319 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
8320 && slimmb->mbxStatus) {
8327 /* First copy command data */
8328 word0 = readl(phba->MBslimaddr);
8330 /* Read the HBA Host Attention Register */
8331 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8332 spin_unlock_irqrestore(&phba->hbalock,
8334 goto out_not_finished;
8338 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8339 /* copy results back to user */
8340 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
8342 /* Copy the mailbox extension data */
8343 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8344 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
8346 pmbox->out_ext_byte_len);
8349 /* First copy command data */
8350 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
8352 /* Copy the mailbox extension data */
8353 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8354 lpfc_memcpy_from_slim(
8357 MAILBOX_HBA_EXT_OFFSET,
8358 pmbox->out_ext_byte_len);
8362 writel(HA_MBATT, phba->HAregaddr);
8363 readl(phba->HAregaddr); /* flush */
8365 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8366 status = mbx->mbxStatus;
8369 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8373 if (processing_queue) {
8374 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
8375 lpfc_mbox_cmpl_put(phba, pmbox);
8377 return MBX_NOT_FINISHED;
8381 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
8382 * @phba: Pointer to HBA context object.
8384 * The function blocks the posting of SLI4 asynchronous mailbox commands from
8385 * the driver internal pending mailbox queue. It will then try to wait out the
8386 * possible outstanding mailbox command before return.
8389 * 0 - the outstanding mailbox command completed; otherwise, the wait for
8390 * the outstanding mailbox command timed out.
8393 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
8395 struct lpfc_sli *psli = &phba->sli;
8397 unsigned long timeout = 0;
8399 /* Mark the asynchronous mailbox command posting as blocked */
8400 spin_lock_irq(&phba->hbalock);
8401 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8402 /* Determine how long we might wait for the active mailbox
8403 * command to be gracefully completed by firmware.
8405 if (phba->sli.mbox_active)
8406 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
8407 phba->sli.mbox_active) *
8409 spin_unlock_irq(&phba->hbalock);
8411 /* Make sure the mailbox is really active */
8413 lpfc_sli4_process_missed_mbox_completions(phba);
8415 /* Wait for the outstnading mailbox command to complete */
8416 while (phba->sli.mbox_active) {
8417 /* Check active mailbox complete status every 2ms */
8419 if (time_after(jiffies, timeout)) {
8420 /* Timeout, marked the outstanding cmd not complete */
8426 /* Can not cleanly block async mailbox command, fails it */
8428 spin_lock_irq(&phba->hbalock);
8429 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8430 spin_unlock_irq(&phba->hbalock);
8436 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
8437 * @phba: Pointer to HBA context object.
8439 * The function unblocks and resume posting of SLI4 asynchronous mailbox
8440 * commands from the driver internal pending mailbox queue. It makes sure
8441 * that there is no outstanding mailbox command before resuming posting
8442 * asynchronous mailbox commands. If, for any reason, there is outstanding
8443 * mailbox command, it will try to wait it out before resuming asynchronous
8444 * mailbox command posting.
8447 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
8449 struct lpfc_sli *psli = &phba->sli;
8451 spin_lock_irq(&phba->hbalock);
8452 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8453 /* Asynchronous mailbox posting is not blocked, do nothing */
8454 spin_unlock_irq(&phba->hbalock);
8458 /* Outstanding synchronous mailbox command is guaranteed to be done,
8459 * successful or timeout, after timing-out the outstanding mailbox
8460 * command shall always be removed, so just unblock posting async
8461 * mailbox command and resume
8463 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8464 spin_unlock_irq(&phba->hbalock);
8466 /* wake up worker thread to post asynchronlous mailbox command */
8467 lpfc_worker_wake_up(phba);
8471 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
8472 * @phba: Pointer to HBA context object.
8473 * @mboxq: Pointer to mailbox object.
8475 * The function waits for the bootstrap mailbox register ready bit from
8476 * port for twice the regular mailbox command timeout value.
8478 * 0 - no timeout on waiting for bootstrap mailbox register ready.
8479 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
8482 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8485 unsigned long timeout;
8486 struct lpfc_register bmbx_reg;
8488 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
8492 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
8493 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
8497 if (time_after(jiffies, timeout))
8498 return MBXERR_ERROR;
8499 } while (!db_ready);
8505 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
8506 * @phba: Pointer to HBA context object.
8507 * @mboxq: Pointer to mailbox object.
8509 * The function posts a mailbox to the port. The mailbox is expected
8510 * to be comletely filled in and ready for the port to operate on it.
8511 * This routine executes a synchronous completion operation on the
8512 * mailbox by polling for its completion.
8514 * The caller must not be holding any locks when calling this routine.
8517 * MBX_SUCCESS - mailbox posted successfully
8518 * Any of the MBX error values.
8521 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8523 int rc = MBX_SUCCESS;
8524 unsigned long iflag;
8525 uint32_t mcqe_status;
8527 struct lpfc_sli *psli = &phba->sli;
8528 struct lpfc_mqe *mb = &mboxq->u.mqe;
8529 struct lpfc_bmbx_create *mbox_rgn;
8530 struct dma_address *dma_address;
8533 * Only one mailbox can be active to the bootstrap mailbox region
8534 * at a time and there is no queueing provided.
8536 spin_lock_irqsave(&phba->hbalock, iflag);
8537 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8538 spin_unlock_irqrestore(&phba->hbalock, iflag);
8539 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8540 "(%d):2532 Mailbox command x%x (x%x/x%x) "
8541 "cannot issue Data: x%x x%x\n",
8542 mboxq->vport ? mboxq->vport->vpi : 0,
8543 mboxq->u.mb.mbxCommand,
8544 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8545 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8546 psli->sli_flag, MBX_POLL);
8547 return MBXERR_ERROR;
8549 /* The server grabs the token and owns it until release */
8550 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8551 phba->sli.mbox_active = mboxq;
8552 spin_unlock_irqrestore(&phba->hbalock, iflag);
8554 /* wait for bootstrap mbox register for readyness */
8555 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8559 * Initialize the bootstrap memory region to avoid stale data areas
8560 * in the mailbox post. Then copy the caller's mailbox contents to
8561 * the bmbx mailbox region.
8563 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
8564 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
8565 lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
8566 sizeof(struct lpfc_mqe));
8568 /* Post the high mailbox dma address to the port and wait for ready. */
8569 dma_address = &phba->sli4_hba.bmbx.dma_address;
8570 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
8572 /* wait for bootstrap mbox register for hi-address write done */
8573 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8577 /* Post the low mailbox dma address to the port. */
8578 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
8580 /* wait for bootstrap mbox register for low address write done */
8581 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8586 * Read the CQ to ensure the mailbox has completed.
8587 * If so, update the mailbox status so that the upper layers
8588 * can complete the request normally.
8590 lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
8591 sizeof(struct lpfc_mqe));
8592 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
8593 lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
8594 sizeof(struct lpfc_mcqe));
8595 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
8597 * When the CQE status indicates a failure and the mailbox status
8598 * indicates success then copy the CQE status into the mailbox status
8599 * (and prefix it with x4000).
8601 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
8602 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
8603 bf_set(lpfc_mqe_status, mb,
8604 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8607 lpfc_sli4_swap_str(phba, mboxq);
8609 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8610 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
8611 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8612 " x%x x%x CQ: x%x x%x x%x x%x\n",
8613 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8614 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8615 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8616 bf_get(lpfc_mqe_status, mb),
8617 mb->un.mb_words[0], mb->un.mb_words[1],
8618 mb->un.mb_words[2], mb->un.mb_words[3],
8619 mb->un.mb_words[4], mb->un.mb_words[5],
8620 mb->un.mb_words[6], mb->un.mb_words[7],
8621 mb->un.mb_words[8], mb->un.mb_words[9],
8622 mb->un.mb_words[10], mb->un.mb_words[11],
8623 mb->un.mb_words[12], mboxq->mcqe.word0,
8624 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
8625 mboxq->mcqe.trailer);
8627 /* We are holding the token, no needed for lock when release */
8628 spin_lock_irqsave(&phba->hbalock, iflag);
8629 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8630 phba->sli.mbox_active = NULL;
8631 spin_unlock_irqrestore(&phba->hbalock, iflag);
8636 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
8637 * @phba: Pointer to HBA context object.
8638 * @pmbox: Pointer to mailbox object.
8639 * @flag: Flag indicating how the mailbox need to be processed.
8641 * This function is called by discovery code and HBA management code to submit
8642 * a mailbox command to firmware with SLI-4 interface spec.
8644 * Return codes the caller owns the mailbox command after the return of the
8648 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
8651 struct lpfc_sli *psli = &phba->sli;
8652 unsigned long iflags;
8655 /* dump from issue mailbox command if setup */
8656 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
8658 rc = lpfc_mbox_dev_check(phba);
8660 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8661 "(%d):2544 Mailbox command x%x (x%x/x%x) "
8662 "cannot issue Data: x%x x%x\n",
8663 mboxq->vport ? mboxq->vport->vpi : 0,
8664 mboxq->u.mb.mbxCommand,
8665 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8666 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8667 psli->sli_flag, flag);
8668 goto out_not_finished;
8671 /* Detect polling mode and jump to a handler */
8672 if (!phba->sli4_hba.intr_enable) {
8673 if (flag == MBX_POLL)
8674 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8677 if (rc != MBX_SUCCESS)
8678 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8679 "(%d):2541 Mailbox command x%x "
8680 "(x%x/x%x) failure: "
8681 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8683 mboxq->vport ? mboxq->vport->vpi : 0,
8684 mboxq->u.mb.mbxCommand,
8685 lpfc_sli_config_mbox_subsys_get(phba,
8687 lpfc_sli_config_mbox_opcode_get(phba,
8689 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8690 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8691 bf_get(lpfc_mcqe_ext_status,
8693 psli->sli_flag, flag);
8695 } else if (flag == MBX_POLL) {
8696 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8697 "(%d):2542 Try to issue mailbox command "
8698 "x%x (x%x/x%x) synchronously ahead of async "
8699 "mailbox command queue: x%x x%x\n",
8700 mboxq->vport ? mboxq->vport->vpi : 0,
8701 mboxq->u.mb.mbxCommand,
8702 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8703 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8704 psli->sli_flag, flag);
8705 /* Try to block the asynchronous mailbox posting */
8706 rc = lpfc_sli4_async_mbox_block(phba);
8708 /* Successfully blocked, now issue sync mbox cmd */
8709 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8710 if (rc != MBX_SUCCESS)
8711 lpfc_printf_log(phba, KERN_WARNING,
8713 "(%d):2597 Sync Mailbox command "
8714 "x%x (x%x/x%x) failure: "
8715 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8717 mboxq->vport ? mboxq->vport->vpi : 0,
8718 mboxq->u.mb.mbxCommand,
8719 lpfc_sli_config_mbox_subsys_get(phba,
8721 lpfc_sli_config_mbox_opcode_get(phba,
8723 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8724 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8725 bf_get(lpfc_mcqe_ext_status,
8727 psli->sli_flag, flag);
8728 /* Unblock the async mailbox posting afterward */
8729 lpfc_sli4_async_mbox_unblock(phba);
8734 /* Now, interrupt mode asynchrous mailbox command */
8735 rc = lpfc_mbox_cmd_check(phba, mboxq);
8737 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8738 "(%d):2543 Mailbox command x%x (x%x/x%x) "
8739 "cannot issue Data: x%x x%x\n",
8740 mboxq->vport ? mboxq->vport->vpi : 0,
8741 mboxq->u.mb.mbxCommand,
8742 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8743 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8744 psli->sli_flag, flag);
8745 goto out_not_finished;
8748 /* Put the mailbox command to the driver internal FIFO */
8749 psli->slistat.mbox_busy++;
8750 spin_lock_irqsave(&phba->hbalock, iflags);
8751 lpfc_mbox_put(phba, mboxq);
8752 spin_unlock_irqrestore(&phba->hbalock, iflags);
8753 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8754 "(%d):0354 Mbox cmd issue - Enqueue Data: "
8755 "x%x (x%x/x%x) x%x x%x x%x\n",
8756 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8757 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8758 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8759 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8760 phba->pport->port_state,
8761 psli->sli_flag, MBX_NOWAIT);
8762 /* Wake up worker thread to transport mailbox command from head */
8763 lpfc_worker_wake_up(phba);
8768 return MBX_NOT_FINISHED;
8772 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8773 * @phba: Pointer to HBA context object.
8775 * This function is called by worker thread to send a mailbox command to
8776 * SLI4 HBA firmware.
8780 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8782 struct lpfc_sli *psli = &phba->sli;
8783 LPFC_MBOXQ_t *mboxq;
8784 int rc = MBX_SUCCESS;
8785 unsigned long iflags;
8786 struct lpfc_mqe *mqe;
8789 /* Check interrupt mode before post async mailbox command */
8790 if (unlikely(!phba->sli4_hba.intr_enable))
8791 return MBX_NOT_FINISHED;
8793 /* Check for mailbox command service token */
8794 spin_lock_irqsave(&phba->hbalock, iflags);
8795 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8796 spin_unlock_irqrestore(&phba->hbalock, iflags);
8797 return MBX_NOT_FINISHED;
8799 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8800 spin_unlock_irqrestore(&phba->hbalock, iflags);
8801 return MBX_NOT_FINISHED;
8803 if (unlikely(phba->sli.mbox_active)) {
8804 spin_unlock_irqrestore(&phba->hbalock, iflags);
8805 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8806 "0384 There is pending active mailbox cmd\n");
8807 return MBX_NOT_FINISHED;
8809 /* Take the mailbox command service token */
8810 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8812 /* Get the next mailbox command from head of queue */
8813 mboxq = lpfc_mbox_get(phba);
8815 /* If no more mailbox command waiting for post, we're done */
8817 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8818 spin_unlock_irqrestore(&phba->hbalock, iflags);
8821 phba->sli.mbox_active = mboxq;
8822 spin_unlock_irqrestore(&phba->hbalock, iflags);
8824 /* Check device readiness for posting mailbox command */
8825 rc = lpfc_mbox_dev_check(phba);
8827 /* Driver clean routine will clean up pending mailbox */
8828 goto out_not_finished;
8830 /* Prepare the mbox command to be posted */
8831 mqe = &mboxq->u.mqe;
8832 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8834 /* Start timer for the mbox_tmo and log some mailbox post messages */
8835 mod_timer(&psli->mbox_tmo, (jiffies +
8836 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
8838 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8839 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
8841 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8842 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8843 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8844 phba->pport->port_state, psli->sli_flag);
8846 if (mbx_cmnd != MBX_HEARTBEAT) {
8848 lpfc_debugfs_disc_trc(mboxq->vport,
8849 LPFC_DISC_TRC_MBOX_VPORT,
8850 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8851 mbx_cmnd, mqe->un.mb_words[0],
8852 mqe->un.mb_words[1]);
8854 lpfc_debugfs_disc_trc(phba->pport,
8856 "MBOX Send: cmd:x%x mb:x%x x%x",
8857 mbx_cmnd, mqe->un.mb_words[0],
8858 mqe->un.mb_words[1]);
8861 psli->slistat.mbox_cmd++;
8863 /* Post the mailbox command to the port */
8864 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8865 if (rc != MBX_SUCCESS) {
8866 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8867 "(%d):2533 Mailbox command x%x (x%x/x%x) "
8868 "cannot issue Data: x%x x%x\n",
8869 mboxq->vport ? mboxq->vport->vpi : 0,
8870 mboxq->u.mb.mbxCommand,
8871 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8872 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8873 psli->sli_flag, MBX_NOWAIT);
8874 goto out_not_finished;
8880 spin_lock_irqsave(&phba->hbalock, iflags);
8881 if (phba->sli.mbox_active) {
8882 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8883 __lpfc_mbox_cmpl_put(phba, mboxq);
8884 /* Release the token */
8885 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8886 phba->sli.mbox_active = NULL;
8888 spin_unlock_irqrestore(&phba->hbalock, iflags);
8890 return MBX_NOT_FINISHED;
8894 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8895 * @phba: Pointer to HBA context object.
8896 * @pmbox: Pointer to mailbox object.
8897 * @flag: Flag indicating how the mailbox need to be processed.
8899 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8900 * the API jump table function pointer from the lpfc_hba struct.
8902 * Return codes the caller owns the mailbox command after the return of the
8906 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
8908 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
8912 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
8913 * @phba: The hba struct for which this call is being executed.
8914 * @dev_grp: The HBA PCI-Device group number.
8916 * This routine sets up the mbox interface API function jump table in @phba
8918 * Returns: 0 - success, -ENODEV - failure.
8921 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8925 case LPFC_PCI_DEV_LP:
8926 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
8927 phba->lpfc_sli_handle_slow_ring_event =
8928 lpfc_sli_handle_slow_ring_event_s3;
8929 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
8930 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
8931 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
8933 case LPFC_PCI_DEV_OC:
8934 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
8935 phba->lpfc_sli_handle_slow_ring_event =
8936 lpfc_sli_handle_slow_ring_event_s4;
8937 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
8938 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
8939 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
8942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8943 "1420 Invalid HBA PCI-device group: 0x%x\n",
8952 * __lpfc_sli_ringtx_put - Add an iocb to the txq
8953 * @phba: Pointer to HBA context object.
8954 * @pring: Pointer to driver SLI ring object.
8955 * @piocb: Pointer to address of newly added command iocb.
8957 * This function is called with hbalock held to add a command
8958 * iocb to the txq when SLI layer cannot submit the command iocb
8962 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8963 struct lpfc_iocbq *piocb)
8965 lockdep_assert_held(&phba->hbalock);
8966 /* Insert the caller's iocb in the txq tail for later processing. */
8967 list_add_tail(&piocb->list, &pring->txq);
8971 * lpfc_sli_next_iocb - Get the next iocb in the txq
8972 * @phba: Pointer to HBA context object.
8973 * @pring: Pointer to driver SLI ring object.
8974 * @piocb: Pointer to address of newly added command iocb.
8976 * This function is called with hbalock held before a new
8977 * iocb is submitted to the firmware. This function checks
8978 * txq to flush the iocbs in txq to Firmware before
8979 * submitting new iocbs to the Firmware.
8980 * If there are iocbs in the txq which need to be submitted
8981 * to firmware, lpfc_sli_next_iocb returns the first element
8982 * of the txq after dequeuing it from txq.
8983 * If there is no iocb in the txq then the function will return
8984 * *piocb and *piocb is set to NULL. Caller needs to check
8985 * *piocb to find if there are more commands in the txq.
8987 static struct lpfc_iocbq *
8988 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8989 struct lpfc_iocbq **piocb)
8991 struct lpfc_iocbq * nextiocb;
8993 lockdep_assert_held(&phba->hbalock);
8995 nextiocb = lpfc_sli_ringtx_get(phba, pring);
9005 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
9006 * @phba: Pointer to HBA context object.
9007 * @ring_number: SLI ring number to issue iocb on.
9008 * @piocb: Pointer to command iocb.
9009 * @flag: Flag indicating if this command can be put into txq.
9011 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
9012 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
9013 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
9014 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
9015 * this function allows only iocbs for posting buffers. This function finds
9016 * next available slot in the command ring and posts the command to the
9017 * available slot and writes the port attention register to request HBA start
9018 * processing new iocb. If there is no slot available in the ring and
9019 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
9020 * the function returns IOCB_BUSY.
9022 * This function is called with hbalock held. The function will return success
9023 * after it successfully submit the iocb to firmware or after adding to the
9027 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
9028 struct lpfc_iocbq *piocb, uint32_t flag)
9030 struct lpfc_iocbq *nextiocb;
9032 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
9034 lockdep_assert_held(&phba->hbalock);
9036 if (piocb->iocb_cmpl && (!piocb->vport) &&
9037 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
9038 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
9039 lpfc_printf_log(phba, KERN_ERR,
9040 LOG_SLI | LOG_VPORT,
9041 "1807 IOCB x%x failed. No vport\n",
9042 piocb->iocb.ulpCommand);
9048 /* If the PCI channel is in offline state, do not post iocbs. */
9049 if (unlikely(pci_channel_offline(phba->pcidev)))
9052 /* If HBA has a deferred error attention, fail the iocb. */
9053 if (unlikely(phba->hba_flag & DEFER_ERATT))
9057 * We should never get an IOCB if we are in a < LINK_DOWN state
9059 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
9063 * Check to see if we are blocking IOCB processing because of a
9064 * outstanding event.
9066 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
9069 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
9071 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
9072 * can be issued if the link is not up.
9074 switch (piocb->iocb.ulpCommand) {
9075 case CMD_GEN_REQUEST64_CR:
9076 case CMD_GEN_REQUEST64_CX:
9077 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
9078 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
9079 FC_RCTL_DD_UNSOL_CMD) ||
9080 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
9081 MENLO_TRANSPORT_TYPE))
9085 case CMD_QUE_RING_BUF_CN:
9086 case CMD_QUE_RING_BUF64_CN:
9088 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
9089 * completion, iocb_cmpl MUST be 0.
9091 if (piocb->iocb_cmpl)
9092 piocb->iocb_cmpl = NULL;
9094 case CMD_CREATE_XRI_CR:
9095 case CMD_CLOSE_XRI_CN:
9096 case CMD_CLOSE_XRI_CX:
9103 * For FCP commands, we must be in a state where we can process link
9106 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
9107 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
9111 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
9112 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
9113 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
9116 lpfc_sli_update_ring(phba, pring);
9118 lpfc_sli_update_full_ring(phba, pring);
9121 return IOCB_SUCCESS;
9126 pring->stats.iocb_cmd_delay++;
9130 if (!(flag & SLI_IOCB_RET_IOCB)) {
9131 __lpfc_sli_ringtx_put(phba, pring, piocb);
9132 return IOCB_SUCCESS;
9139 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
9140 * @phba: Pointer to HBA context object.
9141 * @piocb: Pointer to command iocb.
9142 * @sglq: Pointer to the scatter gather queue object.
9144 * This routine converts the bpl or bde that is in the IOCB
9145 * to a sgl list for the sli4 hardware. The physical address
9146 * of the bpl/bde is converted back to a virtual address.
9147 * If the IOCB contains a BPL then the list of BDE's is
9148 * converted to sli4_sge's. If the IOCB contains a single
9149 * BDE then it is converted to a single sli_sge.
9150 * The IOCB is still in cpu endianess so the contents of
9151 * the bpl can be used without byte swapping.
9153 * Returns valid XRI = Success, NO_XRI = Failure.
9156 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
9157 struct lpfc_sglq *sglq)
9159 uint16_t xritag = NO_XRI;
9160 struct ulp_bde64 *bpl = NULL;
9161 struct ulp_bde64 bde;
9162 struct sli4_sge *sgl = NULL;
9163 struct lpfc_dmabuf *dmabuf;
9167 uint32_t offset = 0; /* accumulated offset in the sg request list */
9168 int inbound = 0; /* number of sg reply entries inbound from firmware */
9170 if (!piocbq || !sglq)
9173 sgl = (struct sli4_sge *)sglq->sgl;
9174 icmd = &piocbq->iocb;
9175 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
9176 return sglq->sli4_xritag;
9177 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9178 numBdes = icmd->un.genreq64.bdl.bdeSize /
9179 sizeof(struct ulp_bde64);
9180 /* The addrHigh and addrLow fields within the IOCB
9181 * have not been byteswapped yet so there is no
9182 * need to swap them back.
9184 if (piocbq->context3)
9185 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
9189 bpl = (struct ulp_bde64 *)dmabuf->virt;
9193 for (i = 0; i < numBdes; i++) {
9194 /* Should already be byte swapped. */
9195 sgl->addr_hi = bpl->addrHigh;
9196 sgl->addr_lo = bpl->addrLow;
9198 sgl->word2 = le32_to_cpu(sgl->word2);
9199 if ((i+1) == numBdes)
9200 bf_set(lpfc_sli4_sge_last, sgl, 1);
9202 bf_set(lpfc_sli4_sge_last, sgl, 0);
9203 /* swap the size field back to the cpu so we
9204 * can assign it to the sgl.
9206 bde.tus.w = le32_to_cpu(bpl->tus.w);
9207 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
9208 /* The offsets in the sgl need to be accumulated
9209 * separately for the request and reply lists.
9210 * The request is always first, the reply follows.
9212 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
9213 /* add up the reply sg entries */
9214 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
9216 /* first inbound? reset the offset */
9219 bf_set(lpfc_sli4_sge_offset, sgl, offset);
9220 bf_set(lpfc_sli4_sge_type, sgl,
9221 LPFC_SGE_TYPE_DATA);
9222 offset += bde.tus.f.bdeSize;
9224 sgl->word2 = cpu_to_le32(sgl->word2);
9228 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
9229 /* The addrHigh and addrLow fields of the BDE have not
9230 * been byteswapped yet so they need to be swapped
9231 * before putting them in the sgl.
9234 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
9236 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
9237 sgl->word2 = le32_to_cpu(sgl->word2);
9238 bf_set(lpfc_sli4_sge_last, sgl, 1);
9239 sgl->word2 = cpu_to_le32(sgl->word2);
9241 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
9243 return sglq->sli4_xritag;
9247 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
9248 * @phba: Pointer to HBA context object.
9249 * @piocb: Pointer to command iocb.
9250 * @wqe: Pointer to the work queue entry.
9252 * This routine converts the iocb command to its Work Queue Entry
9253 * equivalent. The wqe pointer should not have any fields set when
9254 * this routine is called because it will memcpy over them.
9255 * This routine does not set the CQ_ID or the WQEC bits in the
9258 * Returns: 0 = Success, IOCB_ERROR = Failure.
9261 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
9262 union lpfc_wqe128 *wqe)
9264 uint32_t xmit_len = 0, total_len = 0;
9268 uint8_t command_type = ELS_COMMAND_NON_FIP;
9271 uint16_t abrt_iotag;
9272 struct lpfc_iocbq *abrtiocbq;
9273 struct ulp_bde64 *bpl = NULL;
9274 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
9276 struct ulp_bde64 bde;
9277 struct lpfc_nodelist *ndlp;
9281 fip = phba->hba_flag & HBA_FIP_SUPPORT;
9282 /* The fcp commands will set command type */
9283 if (iocbq->iocb_flag & LPFC_IO_FCP)
9284 command_type = FCP_COMMAND;
9285 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
9286 command_type = ELS_COMMAND_FIP;
9288 command_type = ELS_COMMAND_NON_FIP;
9290 if (phba->fcp_embed_io)
9291 memset(wqe, 0, sizeof(union lpfc_wqe128));
9292 /* Some of the fields are in the right position already */
9293 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
9294 if (iocbq->iocb.ulpCommand != CMD_SEND_FRAME) {
9295 /* The ct field has moved so reset */
9296 wqe->generic.wqe_com.word7 = 0;
9297 wqe->generic.wqe_com.word10 = 0;
9300 abort_tag = (uint32_t) iocbq->iotag;
9301 xritag = iocbq->sli4_xritag;
9302 /* words0-2 bpl convert bde */
9303 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9304 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9305 sizeof(struct ulp_bde64);
9306 bpl = (struct ulp_bde64 *)
9307 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
9311 /* Should already be byte swapped. */
9312 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
9313 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
9314 /* swap the size field back to the cpu so we
9315 * can assign it to the sgl.
9317 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
9318 xmit_len = wqe->generic.bde.tus.f.bdeSize;
9320 for (i = 0; i < numBdes; i++) {
9321 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9322 total_len += bde.tus.f.bdeSize;
9325 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
9327 iocbq->iocb.ulpIoTag = iocbq->iotag;
9328 cmnd = iocbq->iocb.ulpCommand;
9330 switch (iocbq->iocb.ulpCommand) {
9331 case CMD_ELS_REQUEST64_CR:
9332 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
9333 ndlp = iocbq->context_un.ndlp;
9335 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9336 if (!iocbq->iocb.ulpLe) {
9337 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9338 "2007 Only Limited Edition cmd Format"
9339 " supported 0x%x\n",
9340 iocbq->iocb.ulpCommand);
9344 wqe->els_req.payload_len = xmit_len;
9345 /* Els_reguest64 has a TMO */
9346 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
9347 iocbq->iocb.ulpTimeout);
9348 /* Need a VF for word 4 set the vf bit*/
9349 bf_set(els_req64_vf, &wqe->els_req, 0);
9350 /* And a VFID for word 12 */
9351 bf_set(els_req64_vfid, &wqe->els_req, 0);
9352 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9353 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9354 iocbq->iocb.ulpContext);
9355 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
9356 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
9357 /* CCP CCPE PV PRI in word10 were set in the memcpy */
9358 if (command_type == ELS_COMMAND_FIP)
9359 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
9360 >> LPFC_FIP_ELS_ID_SHIFT);
9361 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9362 iocbq->context2)->virt);
9363 if_type = bf_get(lpfc_sli_intf_if_type,
9364 &phba->sli4_hba.sli_intf);
9365 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9366 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
9367 *pcmd == ELS_CMD_SCR ||
9368 *pcmd == ELS_CMD_FDISC ||
9369 *pcmd == ELS_CMD_LOGO ||
9370 *pcmd == ELS_CMD_PLOGI)) {
9371 bf_set(els_req64_sp, &wqe->els_req, 1);
9372 bf_set(els_req64_sid, &wqe->els_req,
9373 iocbq->vport->fc_myDID);
9374 if ((*pcmd == ELS_CMD_FLOGI) &&
9375 !(phba->fc_topology ==
9376 LPFC_TOPOLOGY_LOOP))
9377 bf_set(els_req64_sid, &wqe->els_req, 0);
9378 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
9379 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9380 phba->vpi_ids[iocbq->vport->vpi]);
9381 } else if (pcmd && iocbq->context1) {
9382 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
9383 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9384 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9387 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
9388 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9389 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
9390 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
9391 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
9392 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
9393 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9394 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
9395 wqe->els_req.max_response_payload_len = total_len - xmit_len;
9397 case CMD_XMIT_SEQUENCE64_CX:
9398 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
9399 iocbq->iocb.un.ulpWord[3]);
9400 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
9401 iocbq->iocb.unsli3.rcvsli3.ox_id);
9402 /* The entire sequence is transmitted for this IOCB */
9403 xmit_len = total_len;
9404 cmnd = CMD_XMIT_SEQUENCE64_CR;
9405 if (phba->link_flag & LS_LOOPBACK_MODE)
9406 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
9407 case CMD_XMIT_SEQUENCE64_CR:
9408 /* word3 iocb=io_tag32 wqe=reserved */
9409 wqe->xmit_sequence.rsvd3 = 0;
9410 /* word4 relative_offset memcpy */
9411 /* word5 r_ctl/df_ctl memcpy */
9412 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
9413 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
9414 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
9415 LPFC_WQE_IOD_WRITE);
9416 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
9417 LPFC_WQE_LENLOC_WORD12);
9418 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
9419 wqe->xmit_sequence.xmit_len = xmit_len;
9420 command_type = OTHER_COMMAND;
9422 case CMD_XMIT_BCAST64_CN:
9423 /* word3 iocb=iotag32 wqe=seq_payload_len */
9424 wqe->xmit_bcast64.seq_payload_len = xmit_len;
9425 /* word4 iocb=rsvd wqe=rsvd */
9426 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
9427 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
9428 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
9429 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9430 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
9431 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
9432 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
9433 LPFC_WQE_LENLOC_WORD3);
9434 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
9436 case CMD_FCP_IWRITE64_CR:
9437 command_type = FCP_COMMAND_DATA_OUT;
9438 /* word3 iocb=iotag wqe=payload_offset_len */
9439 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9440 bf_set(payload_offset_len, &wqe->fcp_iwrite,
9441 xmit_len + sizeof(struct fcp_rsp));
9442 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
9444 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9445 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9446 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
9447 iocbq->iocb.ulpFCP2Rcvy);
9448 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
9449 /* Always open the exchange */
9450 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
9451 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
9452 LPFC_WQE_LENLOC_WORD4);
9453 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
9454 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
9455 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9456 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
9457 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
9458 if (iocbq->priority) {
9459 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9460 (iocbq->priority << 1));
9462 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9463 (phba->cfg_XLanePriority << 1));
9466 /* Note, word 10 is already initialized to 0 */
9468 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9469 if (phba->cfg_enable_pbde)
9470 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 1);
9472 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
9474 if (phba->fcp_embed_io) {
9475 struct lpfc_scsi_buf *lpfc_cmd;
9476 struct sli4_sge *sgl;
9477 struct fcp_cmnd *fcp_cmnd;
9480 /* 128 byte wqe support here */
9482 lpfc_cmd = iocbq->context1;
9483 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9484 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9486 /* Word 0-2 - FCP_CMND */
9487 wqe->generic.bde.tus.f.bdeFlags =
9488 BUFF_TYPE_BDE_IMMED;
9489 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9490 wqe->generic.bde.addrHigh = 0;
9491 wqe->generic.bde.addrLow = 88; /* Word 22 */
9493 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
9494 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
9496 /* Word 22-29 FCP CMND Payload */
9497 ptr = &wqe->words[22];
9498 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9501 case CMD_FCP_IREAD64_CR:
9502 /* word3 iocb=iotag wqe=payload_offset_len */
9503 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9504 bf_set(payload_offset_len, &wqe->fcp_iread,
9505 xmit_len + sizeof(struct fcp_rsp));
9506 bf_set(cmd_buff_len, &wqe->fcp_iread,
9508 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9509 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9510 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
9511 iocbq->iocb.ulpFCP2Rcvy);
9512 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
9513 /* Always open the exchange */
9514 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
9515 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
9516 LPFC_WQE_LENLOC_WORD4);
9517 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
9518 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
9519 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9520 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
9521 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
9522 if (iocbq->priority) {
9523 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9524 (iocbq->priority << 1));
9526 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9527 (phba->cfg_XLanePriority << 1));
9530 /* Note, word 10 is already initialized to 0 */
9532 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9533 if (phba->cfg_enable_pbde)
9534 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 1);
9536 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
9538 if (phba->fcp_embed_io) {
9539 struct lpfc_scsi_buf *lpfc_cmd;
9540 struct sli4_sge *sgl;
9541 struct fcp_cmnd *fcp_cmnd;
9544 /* 128 byte wqe support here */
9546 lpfc_cmd = iocbq->context1;
9547 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9548 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9550 /* Word 0-2 - FCP_CMND */
9551 wqe->generic.bde.tus.f.bdeFlags =
9552 BUFF_TYPE_BDE_IMMED;
9553 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9554 wqe->generic.bde.addrHigh = 0;
9555 wqe->generic.bde.addrLow = 88; /* Word 22 */
9557 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
9558 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
9560 /* Word 22-29 FCP CMND Payload */
9561 ptr = &wqe->words[22];
9562 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9565 case CMD_FCP_ICMND64_CR:
9566 /* word3 iocb=iotag wqe=payload_offset_len */
9567 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9568 bf_set(payload_offset_len, &wqe->fcp_icmd,
9569 xmit_len + sizeof(struct fcp_rsp));
9570 bf_set(cmd_buff_len, &wqe->fcp_icmd,
9572 /* word3 iocb=IO_TAG wqe=reserved */
9573 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
9574 /* Always open the exchange */
9575 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
9576 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
9577 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
9578 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
9579 LPFC_WQE_LENLOC_NONE);
9580 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
9581 iocbq->iocb.ulpFCP2Rcvy);
9582 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9583 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
9584 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
9585 if (iocbq->priority) {
9586 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9587 (iocbq->priority << 1));
9589 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9590 (phba->cfg_XLanePriority << 1));
9593 /* Note, word 10 is already initialized to 0 */
9595 if (phba->fcp_embed_io) {
9596 struct lpfc_scsi_buf *lpfc_cmd;
9597 struct sli4_sge *sgl;
9598 struct fcp_cmnd *fcp_cmnd;
9601 /* 128 byte wqe support here */
9603 lpfc_cmd = iocbq->context1;
9604 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9605 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9607 /* Word 0-2 - FCP_CMND */
9608 wqe->generic.bde.tus.f.bdeFlags =
9609 BUFF_TYPE_BDE_IMMED;
9610 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9611 wqe->generic.bde.addrHigh = 0;
9612 wqe->generic.bde.addrLow = 88; /* Word 22 */
9614 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
9615 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
9617 /* Word 22-29 FCP CMND Payload */
9618 ptr = &wqe->words[22];
9619 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9622 case CMD_GEN_REQUEST64_CR:
9623 /* For this command calculate the xmit length of the
9627 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9628 sizeof(struct ulp_bde64);
9629 for (i = 0; i < numBdes; i++) {
9630 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9631 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
9633 xmit_len += bde.tus.f.bdeSize;
9635 /* word3 iocb=IO_TAG wqe=request_payload_len */
9636 wqe->gen_req.request_payload_len = xmit_len;
9637 /* word4 iocb=parameter wqe=relative_offset memcpy */
9638 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
9639 /* word6 context tag copied in memcpy */
9640 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
9641 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9642 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9643 "2015 Invalid CT %x command 0x%x\n",
9644 ct, iocbq->iocb.ulpCommand);
9647 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
9648 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
9649 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
9650 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
9651 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
9652 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
9653 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9654 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
9655 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
9656 command_type = OTHER_COMMAND;
9658 case CMD_XMIT_ELS_RSP64_CX:
9659 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9660 /* words0-2 BDE memcpy */
9661 /* word3 iocb=iotag32 wqe=response_payload_len */
9662 wqe->xmit_els_rsp.response_payload_len = xmit_len;
9664 wqe->xmit_els_rsp.word4 = 0;
9665 /* word5 iocb=rsvd wge=did */
9666 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
9667 iocbq->iocb.un.xseq64.xmit_els_remoteID);
9669 if_type = bf_get(lpfc_sli_intf_if_type,
9670 &phba->sli4_hba.sli_intf);
9671 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9672 if (iocbq->vport->fc_flag & FC_PT2PT) {
9673 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9674 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9675 iocbq->vport->fc_myDID);
9676 if (iocbq->vport->fc_myDID == Fabric_DID) {
9678 &wqe->xmit_els_rsp.wqe_dest, 0);
9682 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
9683 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9684 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
9685 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
9686 iocbq->iocb.unsli3.rcvsli3.ox_id);
9687 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
9688 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9689 phba->vpi_ids[iocbq->vport->vpi]);
9690 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9691 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9692 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9693 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9694 LPFC_WQE_LENLOC_WORD3);
9695 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
9696 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9697 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9698 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9699 iocbq->context2)->virt);
9700 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9701 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9702 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9703 iocbq->vport->fc_myDID);
9704 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9705 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9706 phba->vpi_ids[phba->pport->vpi]);
9708 command_type = OTHER_COMMAND;
9710 case CMD_CLOSE_XRI_CN:
9711 case CMD_ABORT_XRI_CN:
9712 case CMD_ABORT_XRI_CX:
9713 /* words 0-2 memcpy should be 0 rserved */
9714 /* port will send abts */
9715 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9716 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9717 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9718 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9722 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
9724 * The link is down, or the command was ELS_FIP
9725 * so the fw does not need to send abts
9728 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9730 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9731 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
9732 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9733 wqe->abort_cmd.rsrvd5 = 0;
9734 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
9735 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9736 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
9738 * The abort handler will send us CMD_ABORT_XRI_CN or
9739 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9741 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9742 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9743 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9744 LPFC_WQE_LENLOC_NONE);
9745 cmnd = CMD_ABORT_XRI_CX;
9746 command_type = OTHER_COMMAND;
9749 case CMD_XMIT_BLS_RSP64_CX:
9750 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9751 /* As BLS ABTS RSP WQE is very different from other WQEs,
9752 * we re-construct this WQE here based on information in
9753 * iocbq from scratch.
9755 memset(wqe, 0, sizeof(union lpfc_wqe));
9756 /* OX_ID is invariable to who sent ABTS to CT exchange */
9757 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
9758 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9759 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
9760 LPFC_ABTS_UNSOL_INT) {
9761 /* ABTS sent by initiator to CT exchange, the
9762 * RX_ID field will be filled with the newly
9763 * allocated responder XRI.
9765 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9766 iocbq->sli4_xritag);
9768 /* ABTS sent by responder to CT exchange, the
9769 * RX_ID field will be filled with the responder
9772 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9773 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
9775 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9776 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
9779 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9781 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9782 iocbq->iocb.ulpContext);
9783 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
9784 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
9785 phba->vpi_ids[phba->pport->vpi]);
9786 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9787 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9788 LPFC_WQE_LENLOC_NONE);
9789 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9790 command_type = OTHER_COMMAND;
9791 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9792 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9793 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9794 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9795 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9796 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9797 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9801 case CMD_SEND_FRAME:
9802 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9803 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9805 case CMD_XRI_ABORTED_CX:
9806 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
9807 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9808 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9809 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9810 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9812 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9813 "2014 Invalid command 0x%x\n",
9814 iocbq->iocb.ulpCommand);
9819 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9820 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9821 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9822 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9823 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9824 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9825 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9826 LPFC_IO_DIF_INSERT);
9827 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9828 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9829 wqe->generic.wqe_com.abort_tag = abort_tag;
9830 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9831 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9832 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9833 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9838 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9839 * @phba: Pointer to HBA context object.
9840 * @ring_number: SLI ring number to issue iocb on.
9841 * @piocb: Pointer to command iocb.
9842 * @flag: Flag indicating if this command can be put into txq.
9844 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9845 * an iocb command to an HBA with SLI-4 interface spec.
9847 * This function is called with hbalock held. The function will return success
9848 * after it successfully submit the iocb to firmware or after adding to the
9852 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9853 struct lpfc_iocbq *piocb, uint32_t flag)
9855 struct lpfc_sglq *sglq;
9856 union lpfc_wqe128 wqe;
9857 struct lpfc_queue *wq;
9858 struct lpfc_sli_ring *pring;
9861 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9862 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9863 wq = phba->sli4_hba.hdwq[piocb->hba_wqidx].fcp_wq;
9865 wq = phba->sli4_hba.els_wq;
9868 /* Get corresponding ring */
9872 * The WQE can be either 64 or 128 bytes,
9875 lockdep_assert_held(&phba->hbalock);
9877 if (piocb->sli4_xritag == NO_XRI) {
9878 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
9879 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
9882 if (!list_empty(&pring->txq)) {
9883 if (!(flag & SLI_IOCB_RET_IOCB)) {
9884 __lpfc_sli_ringtx_put(phba,
9886 return IOCB_SUCCESS;
9891 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
9893 if (!(flag & SLI_IOCB_RET_IOCB)) {
9894 __lpfc_sli_ringtx_put(phba,
9897 return IOCB_SUCCESS;
9903 } else if (piocb->iocb_flag & LPFC_IO_FCP)
9904 /* These IO's already have an XRI and a mapped sgl. */
9908 * This is a continuation of a commandi,(CX) so this
9909 * sglq is on the active list
9911 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
9917 piocb->sli4_lxritag = sglq->sli4_lxritag;
9918 piocb->sli4_xritag = sglq->sli4_xritag;
9919 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
9923 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
9926 if (lpfc_sli4_wq_put(wq, &wqe))
9928 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
9934 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
9936 * This routine wraps the actual lockless version for issusing IOCB function
9937 * pointer from the lpfc_hba struct.
9940 * IOCB_ERROR - Error
9941 * IOCB_SUCCESS - Success
9945 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9946 struct lpfc_iocbq *piocb, uint32_t flag)
9948 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9952 * lpfc_sli_api_table_setup - Set up sli api function jump table
9953 * @phba: The hba struct for which this call is being executed.
9954 * @dev_grp: The HBA PCI-Device group number.
9956 * This routine sets up the SLI interface API function jump table in @phba
9958 * Returns: 0 - success, -ENODEV - failure.
9961 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9965 case LPFC_PCI_DEV_LP:
9966 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
9967 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
9969 case LPFC_PCI_DEV_OC:
9970 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
9971 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
9974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9975 "1419 Invalid HBA PCI-device group: 0x%x\n",
9980 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
9985 * lpfc_sli4_calc_ring - Calculates which ring to use
9986 * @phba: Pointer to HBA context object.
9987 * @piocb: Pointer to command iocb.
9989 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
9990 * hba_wqidx, thus we need to calculate the corresponding ring.
9991 * Since ABORTS must go on the same WQ of the command they are
9992 * aborting, we use command's hba_wqidx.
9994 struct lpfc_sli_ring *
9995 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
9997 struct lpfc_scsi_buf *lpfc_cmd;
9999 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
10000 if (unlikely(!phba->sli4_hba.hdwq))
10003 * for abort iocb hba_wqidx should already
10004 * be setup based on what work queue we used.
10006 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
10007 lpfc_cmd = (struct lpfc_scsi_buf *)piocb->context1;
10008 piocb->hba_wqidx = lpfc_cmd->hdwq;
10010 return phba->sli4_hba.hdwq[piocb->hba_wqidx].fcp_wq->pring;
10012 if (unlikely(!phba->sli4_hba.els_wq))
10014 piocb->hba_wqidx = 0;
10015 return phba->sli4_hba.els_wq->pring;
10020 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
10021 * @phba: Pointer to HBA context object.
10022 * @pring: Pointer to driver SLI ring object.
10023 * @piocb: Pointer to command iocb.
10024 * @flag: Flag indicating if this command can be put into txq.
10026 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
10027 * function. This function gets the hbalock and calls
10028 * __lpfc_sli_issue_iocb function and will return the error returned
10029 * by __lpfc_sli_issue_iocb function. This wrapper is used by
10030 * functions which do not hold hbalock.
10033 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10034 struct lpfc_iocbq *piocb, uint32_t flag)
10036 struct lpfc_hba_eq_hdl *hba_eq_hdl;
10037 struct lpfc_sli_ring *pring;
10038 struct lpfc_queue *fpeq;
10039 struct lpfc_eqe *eqe;
10040 unsigned long iflags;
10043 if (phba->sli_rev == LPFC_SLI_REV4) {
10044 pring = lpfc_sli4_calc_ring(phba, piocb);
10045 if (unlikely(pring == NULL))
10048 spin_lock_irqsave(&pring->ring_lock, iflags);
10049 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10050 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10052 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
10053 idx = piocb->hba_wqidx;
10054 hba_eq_hdl = &phba->sli4_hba.hba_eq_hdl[idx];
10056 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use)) {
10058 /* Get associated EQ with this index */
10059 fpeq = phba->sli4_hba.hdwq[idx].hba_eq;
10061 /* Turn off interrupts from this EQ */
10062 phba->sli4_hba.sli4_eq_clr_intr(fpeq);
10065 * Process all the events on FCP EQ
10067 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
10068 lpfc_sli4_hba_handle_eqe(phba,
10070 fpeq->EQ_processed++;
10073 /* Always clear and re-arm the EQ */
10074 phba->sli4_hba.sli4_eq_release(fpeq,
10077 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
10080 /* For now, SLI2/3 will still use hbalock */
10081 spin_lock_irqsave(&phba->hbalock, iflags);
10082 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10083 spin_unlock_irqrestore(&phba->hbalock, iflags);
10089 * lpfc_extra_ring_setup - Extra ring setup function
10090 * @phba: Pointer to HBA context object.
10092 * This function is called while driver attaches with the
10093 * HBA to setup the extra ring. The extra ring is used
10094 * only when driver needs to support target mode functionality
10095 * or IP over FC functionalities.
10097 * This function is called with no lock held. SLI3 only.
10100 lpfc_extra_ring_setup( struct lpfc_hba *phba)
10102 struct lpfc_sli *psli;
10103 struct lpfc_sli_ring *pring;
10107 /* Adjust cmd/rsp ring iocb entries more evenly */
10109 /* Take some away from the FCP ring */
10110 pring = &psli->sli3_ring[LPFC_FCP_RING];
10111 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10112 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10113 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10114 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10116 /* and give them to the extra ring */
10117 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
10119 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10120 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10121 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10122 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10124 /* Setup default profile for this ring */
10125 pring->iotag_max = 4096;
10126 pring->num_mask = 1;
10127 pring->prt[0].profile = 0; /* Mask 0 */
10128 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
10129 pring->prt[0].type = phba->cfg_multi_ring_type;
10130 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
10134 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
10135 * @phba: Pointer to HBA context object.
10136 * @iocbq: Pointer to iocb object.
10138 * The async_event handler calls this routine when it receives
10139 * an ASYNC_STATUS_CN event from the port. The port generates
10140 * this event when an Abort Sequence request to an rport fails
10141 * twice in succession. The abort could be originated by the
10142 * driver or by the port. The ABTS could have been for an ELS
10143 * or FCP IO. The port only generates this event when an ABTS
10144 * fails to complete after one retry.
10147 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
10148 struct lpfc_iocbq *iocbq)
10150 struct lpfc_nodelist *ndlp = NULL;
10151 uint16_t rpi = 0, vpi = 0;
10152 struct lpfc_vport *vport = NULL;
10154 /* The rpi in the ulpContext is vport-sensitive. */
10155 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
10156 rpi = iocbq->iocb.ulpContext;
10158 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10159 "3092 Port generated ABTS async event "
10160 "on vpi %d rpi %d status 0x%x\n",
10161 vpi, rpi, iocbq->iocb.ulpStatus);
10163 vport = lpfc_find_vport_by_vpid(phba, vpi);
10166 ndlp = lpfc_findnode_rpi(vport, rpi);
10167 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
10170 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
10171 lpfc_sli_abts_recover_port(vport, ndlp);
10175 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10176 "3095 Event Context not found, no "
10177 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
10178 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
10182 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
10183 * @phba: pointer to HBA context object.
10184 * @ndlp: nodelist pointer for the impacted rport.
10185 * @axri: pointer to the wcqe containing the failed exchange.
10187 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
10188 * port. The port generates this event when an abort exchange request to an
10189 * rport fails twice in succession with no reply. The abort could be originated
10190 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
10193 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
10194 struct lpfc_nodelist *ndlp,
10195 struct sli4_wcqe_xri_aborted *axri)
10197 struct lpfc_vport *vport;
10198 uint32_t ext_status = 0;
10200 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
10201 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10202 "3115 Node Context not found, driver "
10203 "ignoring abts err event\n");
10207 vport = ndlp->vport;
10208 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10209 "3116 Port generated FCP XRI ABORT event on "
10210 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
10211 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
10212 bf_get(lpfc_wcqe_xa_xri, axri),
10213 bf_get(lpfc_wcqe_xa_status, axri),
10217 * Catch the ABTS protocol failure case. Older OCe FW releases returned
10218 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
10219 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
10221 ext_status = axri->parameter & IOERR_PARAM_MASK;
10222 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
10223 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
10224 lpfc_sli_abts_recover_port(vport, ndlp);
10228 * lpfc_sli_async_event_handler - ASYNC iocb handler function
10229 * @phba: Pointer to HBA context object.
10230 * @pring: Pointer to driver SLI ring object.
10231 * @iocbq: Pointer to iocb object.
10233 * This function is called by the slow ring event handler
10234 * function when there is an ASYNC event iocb in the ring.
10235 * This function is called with no lock held.
10236 * Currently this function handles only temperature related
10237 * ASYNC events. The function decodes the temperature sensor
10238 * event message and posts events for the management applications.
10241 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
10242 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
10246 struct temp_event temp_event_data;
10247 struct Scsi_Host *shost;
10250 icmd = &iocbq->iocb;
10251 evt_code = icmd->un.asyncstat.evt_code;
10253 switch (evt_code) {
10254 case ASYNC_TEMP_WARN:
10255 case ASYNC_TEMP_SAFE:
10256 temp_event_data.data = (uint32_t) icmd->ulpContext;
10257 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
10258 if (evt_code == ASYNC_TEMP_WARN) {
10259 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
10260 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10261 "0347 Adapter is very hot, please take "
10262 "corrective action. temperature : %d Celsius\n",
10263 (uint32_t) icmd->ulpContext);
10265 temp_event_data.event_code = LPFC_NORMAL_TEMP;
10266 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10267 "0340 Adapter temperature is OK now. "
10268 "temperature : %d Celsius\n",
10269 (uint32_t) icmd->ulpContext);
10272 /* Send temperature change event to applications */
10273 shost = lpfc_shost_from_vport(phba->pport);
10274 fc_host_post_vendor_event(shost, fc_get_event_number(),
10275 sizeof(temp_event_data), (char *) &temp_event_data,
10276 LPFC_NL_VENDOR_ID);
10278 case ASYNC_STATUS_CN:
10279 lpfc_sli_abts_err_handler(phba, iocbq);
10282 iocb_w = (uint32_t *) icmd;
10283 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10284 "0346 Ring %d handler: unexpected ASYNC_STATUS"
10286 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
10287 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
10288 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
10289 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
10290 pring->ringno, icmd->un.asyncstat.evt_code,
10291 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
10292 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
10293 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
10294 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
10302 * lpfc_sli4_setup - SLI ring setup function
10303 * @phba: Pointer to HBA context object.
10305 * lpfc_sli_setup sets up rings of the SLI interface with
10306 * number of iocbs per ring and iotags. This function is
10307 * called while driver attach to the HBA and before the
10308 * interrupts are enabled. So there is no need for locking.
10310 * This function always returns 0.
10313 lpfc_sli4_setup(struct lpfc_hba *phba)
10315 struct lpfc_sli_ring *pring;
10317 pring = phba->sli4_hba.els_wq->pring;
10318 pring->num_mask = LPFC_MAX_RING_MASK;
10319 pring->prt[0].profile = 0; /* Mask 0 */
10320 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10321 pring->prt[0].type = FC_TYPE_ELS;
10322 pring->prt[0].lpfc_sli_rcv_unsol_event =
10323 lpfc_els_unsol_event;
10324 pring->prt[1].profile = 0; /* Mask 1 */
10325 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10326 pring->prt[1].type = FC_TYPE_ELS;
10327 pring->prt[1].lpfc_sli_rcv_unsol_event =
10328 lpfc_els_unsol_event;
10329 pring->prt[2].profile = 0; /* Mask 2 */
10330 /* NameServer Inquiry */
10331 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10333 pring->prt[2].type = FC_TYPE_CT;
10334 pring->prt[2].lpfc_sli_rcv_unsol_event =
10335 lpfc_ct_unsol_event;
10336 pring->prt[3].profile = 0; /* Mask 3 */
10337 /* NameServer response */
10338 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10340 pring->prt[3].type = FC_TYPE_CT;
10341 pring->prt[3].lpfc_sli_rcv_unsol_event =
10342 lpfc_ct_unsol_event;
10347 * lpfc_sli_setup - SLI ring setup function
10348 * @phba: Pointer to HBA context object.
10350 * lpfc_sli_setup sets up rings of the SLI interface with
10351 * number of iocbs per ring and iotags. This function is
10352 * called while driver attach to the HBA and before the
10353 * interrupts are enabled. So there is no need for locking.
10355 * This function always returns 0. SLI3 only.
10358 lpfc_sli_setup(struct lpfc_hba *phba)
10360 int i, totiocbsize = 0;
10361 struct lpfc_sli *psli = &phba->sli;
10362 struct lpfc_sli_ring *pring;
10364 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
10365 psli->sli_flag = 0;
10367 psli->iocbq_lookup = NULL;
10368 psli->iocbq_lookup_len = 0;
10369 psli->last_iotag = 0;
10371 for (i = 0; i < psli->num_rings; i++) {
10372 pring = &psli->sli3_ring[i];
10374 case LPFC_FCP_RING: /* ring 0 - FCP */
10375 /* numCiocb and numRiocb are used in config_port */
10376 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
10377 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
10378 pring->sli.sli3.numCiocb +=
10379 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10380 pring->sli.sli3.numRiocb +=
10381 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10382 pring->sli.sli3.numCiocb +=
10383 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10384 pring->sli.sli3.numRiocb +=
10385 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10386 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10387 SLI3_IOCB_CMD_SIZE :
10388 SLI2_IOCB_CMD_SIZE;
10389 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10390 SLI3_IOCB_RSP_SIZE :
10391 SLI2_IOCB_RSP_SIZE;
10392 pring->iotag_ctr = 0;
10394 (phba->cfg_hba_queue_depth * 2);
10395 pring->fast_iotag = pring->iotag_max;
10396 pring->num_mask = 0;
10398 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
10399 /* numCiocb and numRiocb are used in config_port */
10400 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
10401 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
10402 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10403 SLI3_IOCB_CMD_SIZE :
10404 SLI2_IOCB_CMD_SIZE;
10405 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10406 SLI3_IOCB_RSP_SIZE :
10407 SLI2_IOCB_RSP_SIZE;
10408 pring->iotag_max = phba->cfg_hba_queue_depth;
10409 pring->num_mask = 0;
10411 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
10412 /* numCiocb and numRiocb are used in config_port */
10413 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
10414 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
10415 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10416 SLI3_IOCB_CMD_SIZE :
10417 SLI2_IOCB_CMD_SIZE;
10418 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10419 SLI3_IOCB_RSP_SIZE :
10420 SLI2_IOCB_RSP_SIZE;
10421 pring->fast_iotag = 0;
10422 pring->iotag_ctr = 0;
10423 pring->iotag_max = 4096;
10424 pring->lpfc_sli_rcv_async_status =
10425 lpfc_sli_async_event_handler;
10426 pring->num_mask = LPFC_MAX_RING_MASK;
10427 pring->prt[0].profile = 0; /* Mask 0 */
10428 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10429 pring->prt[0].type = FC_TYPE_ELS;
10430 pring->prt[0].lpfc_sli_rcv_unsol_event =
10431 lpfc_els_unsol_event;
10432 pring->prt[1].profile = 0; /* Mask 1 */
10433 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10434 pring->prt[1].type = FC_TYPE_ELS;
10435 pring->prt[1].lpfc_sli_rcv_unsol_event =
10436 lpfc_els_unsol_event;
10437 pring->prt[2].profile = 0; /* Mask 2 */
10438 /* NameServer Inquiry */
10439 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10441 pring->prt[2].type = FC_TYPE_CT;
10442 pring->prt[2].lpfc_sli_rcv_unsol_event =
10443 lpfc_ct_unsol_event;
10444 pring->prt[3].profile = 0; /* Mask 3 */
10445 /* NameServer response */
10446 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10448 pring->prt[3].type = FC_TYPE_CT;
10449 pring->prt[3].lpfc_sli_rcv_unsol_event =
10450 lpfc_ct_unsol_event;
10453 totiocbsize += (pring->sli.sli3.numCiocb *
10454 pring->sli.sli3.sizeCiocb) +
10455 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
10457 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
10458 /* Too many cmd / rsp ring entries in SLI2 SLIM */
10459 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
10460 "SLI2 SLIM Data: x%x x%lx\n",
10461 phba->brd_no, totiocbsize,
10462 (unsigned long) MAX_SLIM_IOCB_SIZE);
10464 if (phba->cfg_multi_ring_support == 2)
10465 lpfc_extra_ring_setup(phba);
10471 * lpfc_sli4_queue_init - Queue initialization function
10472 * @phba: Pointer to HBA context object.
10474 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
10475 * ring. This function also initializes ring indices of each ring.
10476 * This function is called during the initialization of the SLI
10477 * interface of an HBA.
10478 * This function is called with no lock held and always returns
10482 lpfc_sli4_queue_init(struct lpfc_hba *phba)
10484 struct lpfc_sli *psli;
10485 struct lpfc_sli_ring *pring;
10489 spin_lock_irq(&phba->hbalock);
10490 INIT_LIST_HEAD(&psli->mboxq);
10491 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10492 /* Initialize list headers for txq and txcmplq as double linked lists */
10493 for (i = 0; i < phba->cfg_hdw_queue; i++) {
10494 pring = phba->sli4_hba.hdwq[i].fcp_wq->pring;
10496 pring->ringno = LPFC_FCP_RING;
10497 INIT_LIST_HEAD(&pring->txq);
10498 INIT_LIST_HEAD(&pring->txcmplq);
10499 INIT_LIST_HEAD(&pring->iocb_continueq);
10500 spin_lock_init(&pring->ring_lock);
10502 pring = phba->sli4_hba.els_wq->pring;
10504 pring->ringno = LPFC_ELS_RING;
10505 INIT_LIST_HEAD(&pring->txq);
10506 INIT_LIST_HEAD(&pring->txcmplq);
10507 INIT_LIST_HEAD(&pring->iocb_continueq);
10508 spin_lock_init(&pring->ring_lock);
10510 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10511 for (i = 0; i < phba->cfg_hdw_queue; i++) {
10512 pring = phba->sli4_hba.hdwq[i].nvme_wq->pring;
10514 pring->ringno = LPFC_FCP_RING;
10515 INIT_LIST_HEAD(&pring->txq);
10516 INIT_LIST_HEAD(&pring->txcmplq);
10517 INIT_LIST_HEAD(&pring->iocb_continueq);
10518 spin_lock_init(&pring->ring_lock);
10520 pring = phba->sli4_hba.nvmels_wq->pring;
10522 pring->ringno = LPFC_ELS_RING;
10523 INIT_LIST_HEAD(&pring->txq);
10524 INIT_LIST_HEAD(&pring->txcmplq);
10525 INIT_LIST_HEAD(&pring->iocb_continueq);
10526 spin_lock_init(&pring->ring_lock);
10529 spin_unlock_irq(&phba->hbalock);
10533 * lpfc_sli_queue_init - Queue initialization function
10534 * @phba: Pointer to HBA context object.
10536 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
10537 * ring. This function also initializes ring indices of each ring.
10538 * This function is called during the initialization of the SLI
10539 * interface of an HBA.
10540 * This function is called with no lock held and always returns
10544 lpfc_sli_queue_init(struct lpfc_hba *phba)
10546 struct lpfc_sli *psli;
10547 struct lpfc_sli_ring *pring;
10551 spin_lock_irq(&phba->hbalock);
10552 INIT_LIST_HEAD(&psli->mboxq);
10553 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10554 /* Initialize list headers for txq and txcmplq as double linked lists */
10555 for (i = 0; i < psli->num_rings; i++) {
10556 pring = &psli->sli3_ring[i];
10558 pring->sli.sli3.next_cmdidx = 0;
10559 pring->sli.sli3.local_getidx = 0;
10560 pring->sli.sli3.cmdidx = 0;
10561 INIT_LIST_HEAD(&pring->iocb_continueq);
10562 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
10563 INIT_LIST_HEAD(&pring->postbufq);
10565 INIT_LIST_HEAD(&pring->txq);
10566 INIT_LIST_HEAD(&pring->txcmplq);
10567 spin_lock_init(&pring->ring_lock);
10569 spin_unlock_irq(&phba->hbalock);
10573 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
10574 * @phba: Pointer to HBA context object.
10576 * This routine flushes the mailbox command subsystem. It will unconditionally
10577 * flush all the mailbox commands in the three possible stages in the mailbox
10578 * command sub-system: pending mailbox command queue; the outstanding mailbox
10579 * command; and completed mailbox command queue. It is caller's responsibility
10580 * to make sure that the driver is in the proper state to flush the mailbox
10581 * command sub-system. Namely, the posting of mailbox commands into the
10582 * pending mailbox command queue from the various clients must be stopped;
10583 * either the HBA is in a state that it will never works on the outstanding
10584 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
10585 * mailbox command has been completed.
10588 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
10590 LIST_HEAD(completions);
10591 struct lpfc_sli *psli = &phba->sli;
10593 unsigned long iflag;
10595 /* Disable softirqs, including timers from obtaining phba->hbalock */
10596 local_bh_disable();
10598 /* Flush all the mailbox commands in the mbox system */
10599 spin_lock_irqsave(&phba->hbalock, iflag);
10601 /* The pending mailbox command queue */
10602 list_splice_init(&phba->sli.mboxq, &completions);
10603 /* The outstanding active mailbox command */
10604 if (psli->mbox_active) {
10605 list_add_tail(&psli->mbox_active->list, &completions);
10606 psli->mbox_active = NULL;
10607 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10609 /* The completed mailbox command queue */
10610 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
10611 spin_unlock_irqrestore(&phba->hbalock, iflag);
10613 /* Enable softirqs again, done with phba->hbalock */
10616 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
10617 while (!list_empty(&completions)) {
10618 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
10619 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
10620 if (pmb->mbox_cmpl)
10621 pmb->mbox_cmpl(phba, pmb);
10626 * lpfc_sli_host_down - Vport cleanup function
10627 * @vport: Pointer to virtual port object.
10629 * lpfc_sli_host_down is called to clean up the resources
10630 * associated with a vport before destroying virtual
10631 * port data structures.
10632 * This function does following operations:
10633 * - Free discovery resources associated with this virtual
10635 * - Free iocbs associated with this virtual port in
10637 * - Send abort for all iocb commands associated with this
10638 * vport in txcmplq.
10640 * This function is called with no lock held and always returns 1.
10643 lpfc_sli_host_down(struct lpfc_vport *vport)
10645 LIST_HEAD(completions);
10646 struct lpfc_hba *phba = vport->phba;
10647 struct lpfc_sli *psli = &phba->sli;
10648 struct lpfc_queue *qp = NULL;
10649 struct lpfc_sli_ring *pring;
10650 struct lpfc_iocbq *iocb, *next_iocb;
10652 unsigned long flags = 0;
10653 uint16_t prev_pring_flag;
10655 lpfc_cleanup_discovery_resources(vport);
10657 spin_lock_irqsave(&phba->hbalock, flags);
10660 * Error everything on the txq since these iocbs
10661 * have not been given to the FW yet.
10662 * Also issue ABTS for everything on the txcmplq
10664 if (phba->sli_rev != LPFC_SLI_REV4) {
10665 for (i = 0; i < psli->num_rings; i++) {
10666 pring = &psli->sli3_ring[i];
10667 prev_pring_flag = pring->flag;
10668 /* Only slow rings */
10669 if (pring->ringno == LPFC_ELS_RING) {
10670 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10671 /* Set the lpfc data pending flag */
10672 set_bit(LPFC_DATA_READY, &phba->data_flags);
10674 list_for_each_entry_safe(iocb, next_iocb,
10675 &pring->txq, list) {
10676 if (iocb->vport != vport)
10678 list_move_tail(&iocb->list, &completions);
10680 list_for_each_entry_safe(iocb, next_iocb,
10681 &pring->txcmplq, list) {
10682 if (iocb->vport != vport)
10684 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10686 pring->flag = prev_pring_flag;
10689 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10693 if (pring == phba->sli4_hba.els_wq->pring) {
10694 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10695 /* Set the lpfc data pending flag */
10696 set_bit(LPFC_DATA_READY, &phba->data_flags);
10698 prev_pring_flag = pring->flag;
10699 spin_lock_irq(&pring->ring_lock);
10700 list_for_each_entry_safe(iocb, next_iocb,
10701 &pring->txq, list) {
10702 if (iocb->vport != vport)
10704 list_move_tail(&iocb->list, &completions);
10706 spin_unlock_irq(&pring->ring_lock);
10707 list_for_each_entry_safe(iocb, next_iocb,
10708 &pring->txcmplq, list) {
10709 if (iocb->vport != vport)
10711 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10713 pring->flag = prev_pring_flag;
10716 spin_unlock_irqrestore(&phba->hbalock, flags);
10718 /* Cancel all the IOCBs from the completions list */
10719 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10725 * lpfc_sli_hba_down - Resource cleanup function for the HBA
10726 * @phba: Pointer to HBA context object.
10728 * This function cleans up all iocb, buffers, mailbox commands
10729 * while shutting down the HBA. This function is called with no
10730 * lock held and always returns 1.
10731 * This function does the following to cleanup driver resources:
10732 * - Free discovery resources for each virtual port
10733 * - Cleanup any pending fabric iocbs
10734 * - Iterate through the iocb txq and free each entry
10736 * - Free up any buffer posted to the HBA
10737 * - Free mailbox commands in the mailbox queue.
10740 lpfc_sli_hba_down(struct lpfc_hba *phba)
10742 LIST_HEAD(completions);
10743 struct lpfc_sli *psli = &phba->sli;
10744 struct lpfc_queue *qp = NULL;
10745 struct lpfc_sli_ring *pring;
10746 struct lpfc_dmabuf *buf_ptr;
10747 unsigned long flags = 0;
10750 /* Shutdown the mailbox command sub-system */
10751 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
10753 lpfc_hba_down_prep(phba);
10755 /* Disable softirqs, including timers from obtaining phba->hbalock */
10756 local_bh_disable();
10758 lpfc_fabric_abort_hba(phba);
10760 spin_lock_irqsave(&phba->hbalock, flags);
10763 * Error everything on the txq since these iocbs
10764 * have not been given to the FW yet.
10766 if (phba->sli_rev != LPFC_SLI_REV4) {
10767 for (i = 0; i < psli->num_rings; i++) {
10768 pring = &psli->sli3_ring[i];
10769 /* Only slow rings */
10770 if (pring->ringno == LPFC_ELS_RING) {
10771 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10772 /* Set the lpfc data pending flag */
10773 set_bit(LPFC_DATA_READY, &phba->data_flags);
10775 list_splice_init(&pring->txq, &completions);
10778 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10782 spin_lock_irq(&pring->ring_lock);
10783 list_splice_init(&pring->txq, &completions);
10784 spin_unlock_irq(&pring->ring_lock);
10785 if (pring == phba->sli4_hba.els_wq->pring) {
10786 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10787 /* Set the lpfc data pending flag */
10788 set_bit(LPFC_DATA_READY, &phba->data_flags);
10792 spin_unlock_irqrestore(&phba->hbalock, flags);
10794 /* Cancel all the IOCBs from the completions list */
10795 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10798 spin_lock_irqsave(&phba->hbalock, flags);
10799 list_splice_init(&phba->elsbuf, &completions);
10800 phba->elsbuf_cnt = 0;
10801 phba->elsbuf_prev_cnt = 0;
10802 spin_unlock_irqrestore(&phba->hbalock, flags);
10804 while (!list_empty(&completions)) {
10805 list_remove_head(&completions, buf_ptr,
10806 struct lpfc_dmabuf, list);
10807 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10811 /* Enable softirqs again, done with phba->hbalock */
10814 /* Return any active mbox cmds */
10815 del_timer_sync(&psli->mbox_tmo);
10817 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
10818 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10819 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
10825 * lpfc_sli_pcimem_bcopy - SLI memory copy function
10826 * @srcp: Source memory pointer.
10827 * @destp: Destination memory pointer.
10828 * @cnt: Number of words required to be copied.
10830 * This function is used for copying data between driver memory
10831 * and the SLI memory. This function also changes the endianness
10832 * of each word if native endianness is different from SLI
10833 * endianness. This function can be called with or without
10837 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10839 uint32_t *src = srcp;
10840 uint32_t *dest = destp;
10844 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10846 ldata = le32_to_cpu(ldata);
10855 * lpfc_sli_bemem_bcopy - SLI memory copy function
10856 * @srcp: Source memory pointer.
10857 * @destp: Destination memory pointer.
10858 * @cnt: Number of words required to be copied.
10860 * This function is used for copying data between a data structure
10861 * with big endian representation to local endianness.
10862 * This function can be called with or without lock.
10865 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10867 uint32_t *src = srcp;
10868 uint32_t *dest = destp;
10872 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10874 ldata = be32_to_cpu(ldata);
10882 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
10883 * @phba: Pointer to HBA context object.
10884 * @pring: Pointer to driver SLI ring object.
10885 * @mp: Pointer to driver buffer object.
10887 * This function is called with no lock held.
10888 * It always return zero after adding the buffer to the postbufq
10892 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10893 struct lpfc_dmabuf *mp)
10895 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10897 spin_lock_irq(&phba->hbalock);
10898 list_add_tail(&mp->list, &pring->postbufq);
10899 pring->postbufq_cnt++;
10900 spin_unlock_irq(&phba->hbalock);
10905 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
10906 * @phba: Pointer to HBA context object.
10908 * When HBQ is enabled, buffers are searched based on tags. This function
10909 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10910 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10911 * does not conflict with tags of buffer posted for unsolicited events.
10912 * The function returns the allocated tag. The function is called with
10916 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10918 spin_lock_irq(&phba->hbalock);
10919 phba->buffer_tag_count++;
10921 * Always set the QUE_BUFTAG_BIT to distiguish between
10922 * a tag assigned by HBQ.
10924 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10925 spin_unlock_irq(&phba->hbalock);
10926 return phba->buffer_tag_count;
10930 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
10931 * @phba: Pointer to HBA context object.
10932 * @pring: Pointer to driver SLI ring object.
10933 * @tag: Buffer tag.
10935 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
10936 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
10937 * iocb is posted to the response ring with the tag of the buffer.
10938 * This function searches the pring->postbufq list using the tag
10939 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
10940 * iocb. If the buffer is found then lpfc_dmabuf object of the
10941 * buffer is returned to the caller else NULL is returned.
10942 * This function is called with no lock held.
10944 struct lpfc_dmabuf *
10945 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10948 struct lpfc_dmabuf *mp, *next_mp;
10949 struct list_head *slp = &pring->postbufq;
10951 /* Search postbufq, from the beginning, looking for a match on tag */
10952 spin_lock_irq(&phba->hbalock);
10953 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10954 if (mp->buffer_tag == tag) {
10955 list_del_init(&mp->list);
10956 pring->postbufq_cnt--;
10957 spin_unlock_irq(&phba->hbalock);
10962 spin_unlock_irq(&phba->hbalock);
10963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10964 "0402 Cannot find virtual addr for buffer tag on "
10965 "ring %d Data x%lx x%p x%p x%x\n",
10966 pring->ringno, (unsigned long) tag,
10967 slp->next, slp->prev, pring->postbufq_cnt);
10973 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
10974 * @phba: Pointer to HBA context object.
10975 * @pring: Pointer to driver SLI ring object.
10976 * @phys: DMA address of the buffer.
10978 * This function searches the buffer list using the dma_address
10979 * of unsolicited event to find the driver's lpfc_dmabuf object
10980 * corresponding to the dma_address. The function returns the
10981 * lpfc_dmabuf object if a buffer is found else it returns NULL.
10982 * This function is called by the ct and els unsolicited event
10983 * handlers to get the buffer associated with the unsolicited
10986 * This function is called with no lock held.
10988 struct lpfc_dmabuf *
10989 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10992 struct lpfc_dmabuf *mp, *next_mp;
10993 struct list_head *slp = &pring->postbufq;
10995 /* Search postbufq, from the beginning, looking for a match on phys */
10996 spin_lock_irq(&phba->hbalock);
10997 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10998 if (mp->phys == phys) {
10999 list_del_init(&mp->list);
11000 pring->postbufq_cnt--;
11001 spin_unlock_irq(&phba->hbalock);
11006 spin_unlock_irq(&phba->hbalock);
11007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11008 "0410 Cannot find virtual addr for mapped buf on "
11009 "ring %d Data x%llx x%p x%p x%x\n",
11010 pring->ringno, (unsigned long long)phys,
11011 slp->next, slp->prev, pring->postbufq_cnt);
11016 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
11017 * @phba: Pointer to HBA context object.
11018 * @cmdiocb: Pointer to driver command iocb object.
11019 * @rspiocb: Pointer to driver response iocb object.
11021 * This function is the completion handler for the abort iocbs for
11022 * ELS commands. This function is called from the ELS ring event
11023 * handler with no lock held. This function frees memory resources
11024 * associated with the abort iocb.
11027 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11028 struct lpfc_iocbq *rspiocb)
11030 IOCB_t *irsp = &rspiocb->iocb;
11031 uint16_t abort_iotag, abort_context;
11032 struct lpfc_iocbq *abort_iocb = NULL;
11034 if (irsp->ulpStatus) {
11037 * Assume that the port already completed and returned, or
11038 * will return the iocb. Just Log the message.
11040 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
11041 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
11043 spin_lock_irq(&phba->hbalock);
11044 if (phba->sli_rev < LPFC_SLI_REV4) {
11045 if (irsp->ulpCommand == CMD_ABORT_XRI_CX &&
11046 irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
11047 irsp->un.ulpWord[4] == IOERR_ABORT_REQUESTED) {
11048 spin_unlock_irq(&phba->hbalock);
11051 if (abort_iotag != 0 &&
11052 abort_iotag <= phba->sli.last_iotag)
11054 phba->sli.iocbq_lookup[abort_iotag];
11056 /* For sli4 the abort_tag is the XRI,
11057 * so the abort routine puts the iotag of the iocb
11058 * being aborted in the context field of the abort
11061 abort_iocb = phba->sli.iocbq_lookup[abort_context];
11063 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
11064 "0327 Cannot abort els iocb %p "
11065 "with tag %x context %x, abort status %x, "
11067 abort_iocb, abort_iotag, abort_context,
11068 irsp->ulpStatus, irsp->un.ulpWord[4]);
11070 spin_unlock_irq(&phba->hbalock);
11073 lpfc_sli_release_iocbq(phba, cmdiocb);
11078 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
11079 * @phba: Pointer to HBA context object.
11080 * @cmdiocb: Pointer to driver command iocb object.
11081 * @rspiocb: Pointer to driver response iocb object.
11083 * The function is called from SLI ring event handler with no
11084 * lock held. This function is the completion handler for ELS commands
11085 * which are aborted. The function frees memory resources used for
11086 * the aborted ELS commands.
11089 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11090 struct lpfc_iocbq *rspiocb)
11092 IOCB_t *irsp = &rspiocb->iocb;
11094 /* ELS cmd tag <ulpIoTag> completes */
11095 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11096 "0139 Ignoring ELS cmd tag x%x completion Data: "
11098 irsp->ulpIoTag, irsp->ulpStatus,
11099 irsp->un.ulpWord[4], irsp->ulpTimeout);
11100 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
11101 lpfc_ct_free_iocb(phba, cmdiocb);
11103 lpfc_els_free_iocb(phba, cmdiocb);
11108 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
11109 * @phba: Pointer to HBA context object.
11110 * @pring: Pointer to driver SLI ring object.
11111 * @cmdiocb: Pointer to driver command iocb object.
11113 * This function issues an abort iocb for the provided command iocb down to
11114 * the port. Other than the case the outstanding command iocb is an abort
11115 * request, this function issues abort out unconditionally. This function is
11116 * called with hbalock held. The function returns 0 when it fails due to
11117 * memory allocation failure or when the command iocb is an abort request.
11120 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11121 struct lpfc_iocbq *cmdiocb)
11123 struct lpfc_vport *vport = cmdiocb->vport;
11124 struct lpfc_iocbq *abtsiocbp;
11125 IOCB_t *icmd = NULL;
11126 IOCB_t *iabt = NULL;
11128 unsigned long iflags;
11129 struct lpfc_nodelist *ndlp;
11131 lockdep_assert_held(&phba->hbalock);
11134 * There are certain command types we don't want to abort. And we
11135 * don't want to abort commands that are already in the process of
11138 icmd = &cmdiocb->iocb;
11139 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11140 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11141 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11144 /* issue ABTS for this IOCB based on iotag */
11145 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11146 if (abtsiocbp == NULL)
11149 /* This signals the response to set the correct status
11150 * before calling the completion handler
11152 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11154 iabt = &abtsiocbp->iocb;
11155 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
11156 iabt->un.acxri.abortContextTag = icmd->ulpContext;
11157 if (phba->sli_rev == LPFC_SLI_REV4) {
11158 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
11159 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
11161 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
11162 if (pring->ringno == LPFC_ELS_RING) {
11163 ndlp = (struct lpfc_nodelist *)(cmdiocb->context1);
11164 iabt->un.acxri.abortContextTag = ndlp->nlp_rpi;
11168 iabt->ulpClass = icmd->ulpClass;
11170 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11171 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
11172 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
11173 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
11174 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
11175 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
11177 if (phba->link_state >= LPFC_LINK_UP)
11178 iabt->ulpCommand = CMD_ABORT_XRI_CN;
11180 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
11182 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
11183 abtsiocbp->vport = vport;
11185 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
11186 "0339 Abort xri x%x, original iotag x%x, "
11187 "abort cmd iotag x%x\n",
11188 iabt->un.acxri.abortIoTag,
11189 iabt->un.acxri.abortContextTag,
11192 if (phba->sli_rev == LPFC_SLI_REV4) {
11193 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
11194 if (unlikely(pring == NULL))
11196 /* Note: both hbalock and ring_lock need to be set here */
11197 spin_lock_irqsave(&pring->ring_lock, iflags);
11198 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11200 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11202 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11207 __lpfc_sli_release_iocbq(phba, abtsiocbp);
11210 * Caller to this routine should check for IOCB_ERROR
11211 * and handle it properly. This routine no longer removes
11212 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11218 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
11219 * @phba: Pointer to HBA context object.
11220 * @pring: Pointer to driver SLI ring object.
11221 * @cmdiocb: Pointer to driver command iocb object.
11223 * This function issues an abort iocb for the provided command iocb. In case
11224 * of unloading, the abort iocb will not be issued to commands on the ELS
11225 * ring. Instead, the callback function shall be changed to those commands
11226 * so that nothing happens when them finishes. This function is called with
11227 * hbalock held. The function returns 0 when the command iocb is an abort
11231 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11232 struct lpfc_iocbq *cmdiocb)
11234 struct lpfc_vport *vport = cmdiocb->vport;
11235 int retval = IOCB_ERROR;
11236 IOCB_t *icmd = NULL;
11238 lockdep_assert_held(&phba->hbalock);
11241 * There are certain command types we don't want to abort. And we
11242 * don't want to abort commands that are already in the process of
11245 icmd = &cmdiocb->iocb;
11246 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11247 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11248 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11252 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11253 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11255 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11256 goto abort_iotag_exit;
11260 * If we're unloading, don't abort iocb on the ELS ring, but change
11261 * the callback so that nothing happens when it finishes.
11263 if ((vport->load_flag & FC_UNLOADING) &&
11264 (pring->ringno == LPFC_ELS_RING)) {
11265 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11266 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11268 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11269 goto abort_iotag_exit;
11272 /* Now, we try to issue the abort to the cmdiocb out */
11273 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
11277 * Caller to this routine should check for IOCB_ERROR
11278 * and handle it properly. This routine no longer removes
11279 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11285 * lpfc_sli4_abort_nvme_io - Issue abort for a command iocb
11286 * @phba: Pointer to HBA context object.
11287 * @pring: Pointer to driver SLI ring object.
11288 * @cmdiocb: Pointer to driver command iocb object.
11290 * This function issues an abort iocb for the provided command iocb down to
11291 * the port. Other than the case the outstanding command iocb is an abort
11292 * request, this function issues abort out unconditionally. This function is
11293 * called with hbalock held. The function returns 0 when it fails due to
11294 * memory allocation failure or when the command iocb is an abort request.
11297 lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11298 struct lpfc_iocbq *cmdiocb)
11300 struct lpfc_vport *vport = cmdiocb->vport;
11301 struct lpfc_iocbq *abtsiocbp;
11302 union lpfc_wqe128 *abts_wqe;
11306 * There are certain command types we don't want to abort. And we
11307 * don't want to abort commands that are already in the process of
11310 if (cmdiocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
11311 cmdiocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN ||
11312 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11315 /* issue ABTS for this io based on iotag */
11316 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11317 if (abtsiocbp == NULL)
11320 /* This signals the response to set the correct status
11321 * before calling the completion handler
11323 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11325 /* Complete prepping the abort wqe and issue to the FW. */
11326 abts_wqe = &abtsiocbp->wqe;
11328 /* Clear any stale WQE contents */
11329 memset(abts_wqe, 0, sizeof(union lpfc_wqe));
11330 bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG);
11333 bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
11334 bf_set(wqe_class, &abts_wqe->abort_cmd.wqe_com,
11335 cmdiocb->iocb.ulpClass);
11337 /* word 8 - tell the FW to abort the IO associated with this
11338 * outstanding exchange ID.
11340 abts_wqe->abort_cmd.wqe_com.abort_tag = cmdiocb->sli4_xritag;
11342 /* word 9 - this is the iotag for the abts_wqe completion. */
11343 bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com,
11347 bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1);
11348 bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
11351 bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND);
11352 bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1);
11353 bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
11355 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11356 abtsiocbp->iocb_flag |= LPFC_IO_NVME;
11357 abtsiocbp->vport = vport;
11358 abtsiocbp->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl;
11359 retval = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abtsiocbp);
11361 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
11362 "6147 Failed abts issue_wqe with status x%x "
11364 retval, cmdiocb->sli4_xritag);
11365 lpfc_sli_release_iocbq(phba, abtsiocbp);
11369 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
11370 "6148 Drv Abort NVME Request Issued for "
11371 "ox_id x%x on reqtag x%x\n",
11372 cmdiocb->sli4_xritag,
11379 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
11380 * @phba: pointer to lpfc HBA data structure.
11382 * This routine will abort all pending and outstanding iocbs to an HBA.
11385 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
11387 struct lpfc_sli *psli = &phba->sli;
11388 struct lpfc_sli_ring *pring;
11389 struct lpfc_queue *qp = NULL;
11392 if (phba->sli_rev != LPFC_SLI_REV4) {
11393 for (i = 0; i < psli->num_rings; i++) {
11394 pring = &psli->sli3_ring[i];
11395 lpfc_sli_abort_iocb_ring(phba, pring);
11399 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11403 lpfc_sli_abort_iocb_ring(phba, pring);
11408 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
11409 * @iocbq: Pointer to driver iocb object.
11410 * @vport: Pointer to driver virtual port object.
11411 * @tgt_id: SCSI ID of the target.
11412 * @lun_id: LUN ID of the scsi device.
11413 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
11415 * This function acts as an iocb filter for functions which abort or count
11416 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
11417 * 0 if the filtering criteria is met for the given iocb and will return
11418 * 1 if the filtering criteria is not met.
11419 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
11420 * given iocb is for the SCSI device specified by vport, tgt_id and
11421 * lun_id parameter.
11422 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
11423 * given iocb is for the SCSI target specified by vport and tgt_id
11425 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
11426 * given iocb is for the SCSI host associated with the given vport.
11427 * This function is called with no locks held.
11430 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
11431 uint16_t tgt_id, uint64_t lun_id,
11432 lpfc_ctx_cmd ctx_cmd)
11434 struct lpfc_scsi_buf *lpfc_cmd;
11437 if (iocbq->vport != vport)
11440 if (!(iocbq->iocb_flag & LPFC_IO_FCP) ||
11441 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ))
11444 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11446 if (lpfc_cmd->pCmd == NULL)
11451 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11452 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
11453 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
11457 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11458 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
11461 case LPFC_CTX_HOST:
11465 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
11466 __func__, ctx_cmd);
11474 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
11475 * @vport: Pointer to virtual port.
11476 * @tgt_id: SCSI ID of the target.
11477 * @lun_id: LUN ID of the scsi device.
11478 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11480 * This function returns number of FCP commands pending for the vport.
11481 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
11482 * commands pending on the vport associated with SCSI device specified
11483 * by tgt_id and lun_id parameters.
11484 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
11485 * commands pending on the vport associated with SCSI target specified
11486 * by tgt_id parameter.
11487 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
11488 * commands pending on the vport.
11489 * This function returns the number of iocbs which satisfy the filter.
11490 * This function is called without any lock held.
11493 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
11494 lpfc_ctx_cmd ctx_cmd)
11496 struct lpfc_hba *phba = vport->phba;
11497 struct lpfc_iocbq *iocbq;
11500 spin_lock_irq(&phba->hbalock);
11501 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
11502 iocbq = phba->sli.iocbq_lookup[i];
11504 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
11508 spin_unlock_irq(&phba->hbalock);
11514 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
11515 * @phba: Pointer to HBA context object
11516 * @cmdiocb: Pointer to command iocb object.
11517 * @rspiocb: Pointer to response iocb object.
11519 * This function is called when an aborted FCP iocb completes. This
11520 * function is called by the ring event handler with no lock held.
11521 * This function frees the iocb.
11524 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11525 struct lpfc_iocbq *rspiocb)
11527 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11528 "3096 ABORT_XRI_CN completing on rpi x%x "
11529 "original iotag x%x, abort cmd iotag x%x "
11530 "status 0x%x, reason 0x%x\n",
11531 cmdiocb->iocb.un.acxri.abortContextTag,
11532 cmdiocb->iocb.un.acxri.abortIoTag,
11533 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
11534 rspiocb->iocb.un.ulpWord[4]);
11535 lpfc_sli_release_iocbq(phba, cmdiocb);
11540 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
11541 * @vport: Pointer to virtual port.
11542 * @pring: Pointer to driver SLI ring object.
11543 * @tgt_id: SCSI ID of the target.
11544 * @lun_id: LUN ID of the scsi device.
11545 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11547 * This function sends an abort command for every SCSI command
11548 * associated with the given virtual port pending on the ring
11549 * filtered by lpfc_sli_validate_fcp_iocb function.
11550 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
11551 * FCP iocbs associated with lun specified by tgt_id and lun_id
11553 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
11554 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11555 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
11556 * FCP iocbs associated with virtual port.
11557 * This function returns number of iocbs it failed to abort.
11558 * This function is called with no locks held.
11561 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11562 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
11564 struct lpfc_hba *phba = vport->phba;
11565 struct lpfc_iocbq *iocbq;
11566 struct lpfc_iocbq *abtsiocb;
11567 struct lpfc_sli_ring *pring_s4;
11568 IOCB_t *cmd = NULL;
11569 int errcnt = 0, ret_val = 0;
11572 /* all I/Os are in process of being flushed */
11573 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH)
11576 for (i = 1; i <= phba->sli.last_iotag; i++) {
11577 iocbq = phba->sli.iocbq_lookup[i];
11579 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11584 * If the iocbq is already being aborted, don't take a second
11585 * action, but do count it.
11587 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11590 /* issue ABTS for this IOCB based on iotag */
11591 abtsiocb = lpfc_sli_get_iocbq(phba);
11592 if (abtsiocb == NULL) {
11597 /* indicate the IO is being aborted by the driver. */
11598 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11600 cmd = &iocbq->iocb;
11601 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11602 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
11603 if (phba->sli_rev == LPFC_SLI_REV4)
11604 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
11606 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
11607 abtsiocb->iocb.ulpLe = 1;
11608 abtsiocb->iocb.ulpClass = cmd->ulpClass;
11609 abtsiocb->vport = vport;
11611 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11612 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
11613 if (iocbq->iocb_flag & LPFC_IO_FCP)
11614 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
11615 if (iocbq->iocb_flag & LPFC_IO_FOF)
11616 abtsiocb->iocb_flag |= LPFC_IO_FOF;
11618 if (lpfc_is_link_up(phba))
11619 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11621 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11623 /* Setup callback routine and issue the command. */
11624 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11625 if (phba->sli_rev == LPFC_SLI_REV4) {
11626 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11629 ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11632 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
11634 if (ret_val == IOCB_ERROR) {
11635 lpfc_sli_release_iocbq(phba, abtsiocb);
11645 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
11646 * @vport: Pointer to virtual port.
11647 * @pring: Pointer to driver SLI ring object.
11648 * @tgt_id: SCSI ID of the target.
11649 * @lun_id: LUN ID of the scsi device.
11650 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11652 * This function sends an abort command for every SCSI command
11653 * associated with the given virtual port pending on the ring
11654 * filtered by lpfc_sli_validate_fcp_iocb function.
11655 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
11656 * FCP iocbs associated with lun specified by tgt_id and lun_id
11658 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
11659 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11660 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
11661 * FCP iocbs associated with virtual port.
11662 * This function returns number of iocbs it aborted .
11663 * This function is called with no locks held right after a taskmgmt
11667 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11668 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
11670 struct lpfc_hba *phba = vport->phba;
11671 struct lpfc_scsi_buf *lpfc_cmd;
11672 struct lpfc_iocbq *abtsiocbq;
11673 struct lpfc_nodelist *ndlp;
11674 struct lpfc_iocbq *iocbq;
11676 int sum, i, ret_val;
11677 unsigned long iflags;
11678 struct lpfc_sli_ring *pring_s4;
11680 spin_lock_irqsave(&phba->hbalock, iflags);
11682 /* all I/Os are in process of being flushed */
11683 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
11684 spin_unlock_irqrestore(&phba->hbalock, iflags);
11689 for (i = 1; i <= phba->sli.last_iotag; i++) {
11690 iocbq = phba->sli.iocbq_lookup[i];
11692 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11697 * If the iocbq is already being aborted, don't take a second
11698 * action, but do count it.
11700 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11703 /* issue ABTS for this IOCB based on iotag */
11704 abtsiocbq = __lpfc_sli_get_iocbq(phba);
11705 if (abtsiocbq == NULL)
11708 icmd = &iocbq->iocb;
11709 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11710 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11711 if (phba->sli_rev == LPFC_SLI_REV4)
11712 abtsiocbq->iocb.un.acxri.abortIoTag =
11713 iocbq->sli4_xritag;
11715 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11716 abtsiocbq->iocb.ulpLe = 1;
11717 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11718 abtsiocbq->vport = vport;
11720 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11721 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
11722 if (iocbq->iocb_flag & LPFC_IO_FCP)
11723 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
11724 if (iocbq->iocb_flag & LPFC_IO_FOF)
11725 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
11727 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11728 ndlp = lpfc_cmd->rdata->pnode;
11730 if (lpfc_is_link_up(phba) &&
11731 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
11732 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11734 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11736 /* Setup callback routine and issue the command. */
11737 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11740 * Indicate the IO is being aborted by the driver and set
11741 * the caller's flag into the aborted IO.
11743 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11745 if (phba->sli_rev == LPFC_SLI_REV4) {
11746 pring_s4 = lpfc_sli4_calc_ring(phba, abtsiocbq);
11749 /* Note: both hbalock and ring_lock must be set here */
11750 spin_lock(&pring_s4->ring_lock);
11751 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11753 spin_unlock(&pring_s4->ring_lock);
11755 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11760 if (ret_val == IOCB_ERROR)
11761 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11765 spin_unlock_irqrestore(&phba->hbalock, iflags);
11770 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
11771 * @phba: Pointer to HBA context object.
11772 * @cmdiocbq: Pointer to command iocb.
11773 * @rspiocbq: Pointer to response iocb.
11775 * This function is the completion handler for iocbs issued using
11776 * lpfc_sli_issue_iocb_wait function. This function is called by the
11777 * ring event handler function without any lock held. This function
11778 * can be called from both worker thread context and interrupt
11779 * context. This function also can be called from other thread which
11780 * cleans up the SLI layer objects.
11781 * This function copy the contents of the response iocb to the
11782 * response iocb memory object provided by the caller of
11783 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11784 * sleeps for the iocb completion.
11787 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11788 struct lpfc_iocbq *cmdiocbq,
11789 struct lpfc_iocbq *rspiocbq)
11791 wait_queue_head_t *pdone_q;
11792 unsigned long iflags;
11793 struct lpfc_scsi_buf *lpfc_cmd;
11795 spin_lock_irqsave(&phba->hbalock, iflags);
11796 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11799 * A time out has occurred for the iocb. If a time out
11800 * completion handler has been supplied, call it. Otherwise,
11801 * just free the iocbq.
11804 spin_unlock_irqrestore(&phba->hbalock, iflags);
11805 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11806 cmdiocbq->wait_iocb_cmpl = NULL;
11807 if (cmdiocbq->iocb_cmpl)
11808 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11810 lpfc_sli_release_iocbq(phba, cmdiocbq);
11814 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11815 if (cmdiocbq->context2 && rspiocbq)
11816 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11817 &rspiocbq->iocb, sizeof(IOCB_t));
11819 /* Set the exchange busy flag for task management commands */
11820 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11821 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11822 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
11824 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
11827 pdone_q = cmdiocbq->context_un.wait_queue;
11830 spin_unlock_irqrestore(&phba->hbalock, iflags);
11835 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11836 * @phba: Pointer to HBA context object..
11837 * @piocbq: Pointer to command iocb.
11838 * @flag: Flag to test.
11840 * This routine grabs the hbalock and then test the iocb_flag to
11841 * see if the passed in flag is set.
11843 * 1 if flag is set.
11844 * 0 if flag is not set.
11847 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11848 struct lpfc_iocbq *piocbq, uint32_t flag)
11850 unsigned long iflags;
11853 spin_lock_irqsave(&phba->hbalock, iflags);
11854 ret = piocbq->iocb_flag & flag;
11855 spin_unlock_irqrestore(&phba->hbalock, iflags);
11861 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
11862 * @phba: Pointer to HBA context object..
11863 * @pring: Pointer to sli ring.
11864 * @piocb: Pointer to command iocb.
11865 * @prspiocbq: Pointer to response iocb.
11866 * @timeout: Timeout in number of seconds.
11868 * This function issues the iocb to firmware and waits for the
11869 * iocb to complete. The iocb_cmpl field of the shall be used
11870 * to handle iocbs which time out. If the field is NULL, the
11871 * function shall free the iocbq structure. If more clean up is
11872 * needed, the caller is expected to provide a completion function
11873 * that will provide the needed clean up. If the iocb command is
11874 * not completed within timeout seconds, the function will either
11875 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11876 * completion function set in the iocb_cmpl field and then return
11877 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11878 * resources if this function returns IOCB_TIMEDOUT.
11879 * The function waits for the iocb completion using an
11880 * non-interruptible wait.
11881 * This function will sleep while waiting for iocb completion.
11882 * So, this function should not be called from any context which
11883 * does not allow sleeping. Due to the same reason, this function
11884 * cannot be called with interrupt disabled.
11885 * This function assumes that the iocb completions occur while
11886 * this function sleep. So, this function cannot be called from
11887 * the thread which process iocb completion for this ring.
11888 * This function clears the iocb_flag of the iocb object before
11889 * issuing the iocb and the iocb completion handler sets this
11890 * flag and wakes this thread when the iocb completes.
11891 * The contents of the response iocb will be copied to prspiocbq
11892 * by the completion handler when the command completes.
11893 * This function returns IOCB_SUCCESS when success.
11894 * This function is called with no lock held.
11897 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
11898 uint32_t ring_number,
11899 struct lpfc_iocbq *piocb,
11900 struct lpfc_iocbq *prspiocbq,
11903 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11904 long timeleft, timeout_req = 0;
11905 int retval = IOCB_SUCCESS;
11907 struct lpfc_iocbq *iocb;
11909 int txcmplq_cnt = 0;
11910 struct lpfc_sli_ring *pring;
11911 unsigned long iflags;
11912 bool iocb_completed = true;
11914 if (phba->sli_rev >= LPFC_SLI_REV4)
11915 pring = lpfc_sli4_calc_ring(phba, piocb);
11917 pring = &phba->sli.sli3_ring[ring_number];
11919 * If the caller has provided a response iocbq buffer, then context2
11920 * is NULL or its an error.
11923 if (piocb->context2)
11925 piocb->context2 = prspiocbq;
11928 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
11929 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11930 piocb->context_un.wait_queue = &done_q;
11931 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
11933 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11934 if (lpfc_readl(phba->HCregaddr, &creg_val))
11936 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11937 writel(creg_val, phba->HCregaddr);
11938 readl(phba->HCregaddr); /* flush */
11941 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11942 SLI_IOCB_RET_IOCB);
11943 if (retval == IOCB_SUCCESS) {
11944 timeout_req = msecs_to_jiffies(timeout * 1000);
11945 timeleft = wait_event_timeout(done_q,
11946 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
11948 spin_lock_irqsave(&phba->hbalock, iflags);
11949 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
11952 * IOCB timed out. Inform the wake iocb wait
11953 * completion function and set local status
11956 iocb_completed = false;
11957 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11959 spin_unlock_irqrestore(&phba->hbalock, iflags);
11960 if (iocb_completed) {
11961 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11962 "0331 IOCB wake signaled\n");
11963 /* Note: we are not indicating if the IOCB has a success
11964 * status or not - that's for the caller to check.
11965 * IOCB_SUCCESS means just that the command was sent and
11966 * completed. Not that it completed successfully.
11968 } else if (timeleft == 0) {
11969 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11970 "0338 IOCB wait timeout error - no "
11971 "wake response Data x%x\n", timeout);
11972 retval = IOCB_TIMEDOUT;
11974 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11975 "0330 IOCB wake NOT set, "
11977 timeout, (timeleft / jiffies));
11978 retval = IOCB_TIMEDOUT;
11980 } else if (retval == IOCB_BUSY) {
11981 if (phba->cfg_log_verbose & LOG_SLI) {
11982 list_for_each_entry(iocb, &pring->txq, list) {
11985 list_for_each_entry(iocb, &pring->txcmplq, list) {
11988 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11989 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11990 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
11994 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11995 "0332 IOCB wait issue failed, Data x%x\n",
11997 retval = IOCB_ERROR;
12000 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
12001 if (lpfc_readl(phba->HCregaddr, &creg_val))
12003 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
12004 writel(creg_val, phba->HCregaddr);
12005 readl(phba->HCregaddr); /* flush */
12009 piocb->context2 = NULL;
12011 piocb->context_un.wait_queue = NULL;
12012 piocb->iocb_cmpl = NULL;
12017 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
12018 * @phba: Pointer to HBA context object.
12019 * @pmboxq: Pointer to driver mailbox object.
12020 * @timeout: Timeout in number of seconds.
12022 * This function issues the mailbox to firmware and waits for the
12023 * mailbox command to complete. If the mailbox command is not
12024 * completed within timeout seconds, it returns MBX_TIMEOUT.
12025 * The function waits for the mailbox completion using an
12026 * interruptible wait. If the thread is woken up due to a
12027 * signal, MBX_TIMEOUT error is returned to the caller. Caller
12028 * should not free the mailbox resources, if this function returns
12030 * This function will sleep while waiting for mailbox completion.
12031 * So, this function should not be called from any context which
12032 * does not allow sleeping. Due to the same reason, this function
12033 * cannot be called with interrupt disabled.
12034 * This function assumes that the mailbox completion occurs while
12035 * this function sleep. So, this function cannot be called from
12036 * the worker thread which processes mailbox completion.
12037 * This function is called in the context of HBA management
12039 * This function returns MBX_SUCCESS when successful.
12040 * This function is called with no lock held.
12043 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
12046 struct completion mbox_done;
12048 unsigned long flag;
12050 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
12051 /* setup wake call as IOCB callback */
12052 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
12054 /* setup context3 field to pass wait_queue pointer to wake function */
12055 init_completion(&mbox_done);
12056 pmboxq->context3 = &mbox_done;
12057 /* now issue the command */
12058 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
12059 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
12060 wait_for_completion_timeout(&mbox_done,
12061 msecs_to_jiffies(timeout * 1000));
12063 spin_lock_irqsave(&phba->hbalock, flag);
12064 pmboxq->context3 = NULL;
12066 * if LPFC_MBX_WAKE flag is set the mailbox is completed
12067 * else do not free the resources.
12069 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
12070 retval = MBX_SUCCESS;
12072 retval = MBX_TIMEOUT;
12073 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12075 spin_unlock_irqrestore(&phba->hbalock, flag);
12081 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
12082 * @phba: Pointer to HBA context.
12084 * This function is called to shutdown the driver's mailbox sub-system.
12085 * It first marks the mailbox sub-system is in a block state to prevent
12086 * the asynchronous mailbox command from issued off the pending mailbox
12087 * command queue. If the mailbox command sub-system shutdown is due to
12088 * HBA error conditions such as EEH or ERATT, this routine shall invoke
12089 * the mailbox sub-system flush routine to forcefully bring down the
12090 * mailbox sub-system. Otherwise, if it is due to normal condition (such
12091 * as with offline or HBA function reset), this routine will wait for the
12092 * outstanding mailbox command to complete before invoking the mailbox
12093 * sub-system flush routine to gracefully bring down mailbox sub-system.
12096 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
12098 struct lpfc_sli *psli = &phba->sli;
12099 unsigned long timeout;
12101 if (mbx_action == LPFC_MBX_NO_WAIT) {
12102 /* delay 100ms for port state */
12104 lpfc_sli_mbox_sys_flush(phba);
12107 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
12109 /* Disable softirqs, including timers from obtaining phba->hbalock */
12110 local_bh_disable();
12112 spin_lock_irq(&phba->hbalock);
12113 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
12115 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
12116 /* Determine how long we might wait for the active mailbox
12117 * command to be gracefully completed by firmware.
12119 if (phba->sli.mbox_active)
12120 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
12121 phba->sli.mbox_active) *
12123 spin_unlock_irq(&phba->hbalock);
12125 /* Enable softirqs again, done with phba->hbalock */
12128 while (phba->sli.mbox_active) {
12129 /* Check active mailbox complete status every 2ms */
12131 if (time_after(jiffies, timeout))
12132 /* Timeout, let the mailbox flush routine to
12133 * forcefully release active mailbox command
12138 spin_unlock_irq(&phba->hbalock);
12140 /* Enable softirqs again, done with phba->hbalock */
12144 lpfc_sli_mbox_sys_flush(phba);
12148 * lpfc_sli_eratt_read - read sli-3 error attention events
12149 * @phba: Pointer to HBA context.
12151 * This function is called to read the SLI3 device error attention registers
12152 * for possible error attention events. The caller must hold the hostlock
12153 * with spin_lock_irq().
12155 * This function returns 1 when there is Error Attention in the Host Attention
12156 * Register and returns 0 otherwise.
12159 lpfc_sli_eratt_read(struct lpfc_hba *phba)
12163 /* Read chip Host Attention (HA) register */
12164 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12167 if (ha_copy & HA_ERATT) {
12168 /* Read host status register to retrieve error event */
12169 if (lpfc_sli_read_hs(phba))
12172 /* Check if there is a deferred error condition is active */
12173 if ((HS_FFER1 & phba->work_hs) &&
12174 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12175 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
12176 phba->hba_flag |= DEFER_ERATT;
12177 /* Clear all interrupt enable conditions */
12178 writel(0, phba->HCregaddr);
12179 readl(phba->HCregaddr);
12182 /* Set the driver HA work bitmap */
12183 phba->work_ha |= HA_ERATT;
12184 /* Indicate polling handles this ERATT */
12185 phba->hba_flag |= HBA_ERATT_HANDLED;
12191 /* Set the driver HS work bitmap */
12192 phba->work_hs |= UNPLUG_ERR;
12193 /* Set the driver HA work bitmap */
12194 phba->work_ha |= HA_ERATT;
12195 /* Indicate polling handles this ERATT */
12196 phba->hba_flag |= HBA_ERATT_HANDLED;
12201 * lpfc_sli4_eratt_read - read sli-4 error attention events
12202 * @phba: Pointer to HBA context.
12204 * This function is called to read the SLI4 device error attention registers
12205 * for possible error attention events. The caller must hold the hostlock
12206 * with spin_lock_irq().
12208 * This function returns 1 when there is Error Attention in the Host Attention
12209 * Register and returns 0 otherwise.
12212 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
12214 uint32_t uerr_sta_hi, uerr_sta_lo;
12215 uint32_t if_type, portsmphr;
12216 struct lpfc_register portstat_reg;
12219 * For now, use the SLI4 device internal unrecoverable error
12220 * registers for error attention. This can be changed later.
12222 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12224 case LPFC_SLI_INTF_IF_TYPE_0:
12225 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
12227 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
12229 phba->work_hs |= UNPLUG_ERR;
12230 phba->work_ha |= HA_ERATT;
12231 phba->hba_flag |= HBA_ERATT_HANDLED;
12234 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
12235 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
12236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12237 "1423 HBA Unrecoverable error: "
12238 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
12239 "ue_mask_lo_reg=0x%x, "
12240 "ue_mask_hi_reg=0x%x\n",
12241 uerr_sta_lo, uerr_sta_hi,
12242 phba->sli4_hba.ue_mask_lo,
12243 phba->sli4_hba.ue_mask_hi);
12244 phba->work_status[0] = uerr_sta_lo;
12245 phba->work_status[1] = uerr_sta_hi;
12246 phba->work_ha |= HA_ERATT;
12247 phba->hba_flag |= HBA_ERATT_HANDLED;
12251 case LPFC_SLI_INTF_IF_TYPE_2:
12252 case LPFC_SLI_INTF_IF_TYPE_6:
12253 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
12254 &portstat_reg.word0) ||
12255 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
12257 phba->work_hs |= UNPLUG_ERR;
12258 phba->work_ha |= HA_ERATT;
12259 phba->hba_flag |= HBA_ERATT_HANDLED;
12262 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
12263 phba->work_status[0] =
12264 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
12265 phba->work_status[1] =
12266 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
12267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12268 "2885 Port Status Event: "
12269 "port status reg 0x%x, "
12270 "port smphr reg 0x%x, "
12271 "error 1=0x%x, error 2=0x%x\n",
12272 portstat_reg.word0,
12274 phba->work_status[0],
12275 phba->work_status[1]);
12276 phba->work_ha |= HA_ERATT;
12277 phba->hba_flag |= HBA_ERATT_HANDLED;
12281 case LPFC_SLI_INTF_IF_TYPE_1:
12283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12284 "2886 HBA Error Attention on unsupported "
12285 "if type %d.", if_type);
12293 * lpfc_sli_check_eratt - check error attention events
12294 * @phba: Pointer to HBA context.
12296 * This function is called from timer soft interrupt context to check HBA's
12297 * error attention register bit for error attention events.
12299 * This function returns 1 when there is Error Attention in the Host Attention
12300 * Register and returns 0 otherwise.
12303 lpfc_sli_check_eratt(struct lpfc_hba *phba)
12307 /* If somebody is waiting to handle an eratt, don't process it
12308 * here. The brdkill function will do this.
12310 if (phba->link_flag & LS_IGNORE_ERATT)
12313 /* Check if interrupt handler handles this ERATT */
12314 spin_lock_irq(&phba->hbalock);
12315 if (phba->hba_flag & HBA_ERATT_HANDLED) {
12316 /* Interrupt handler has handled ERATT */
12317 spin_unlock_irq(&phba->hbalock);
12322 * If there is deferred error attention, do not check for error
12325 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12326 spin_unlock_irq(&phba->hbalock);
12330 /* If PCI channel is offline, don't process it */
12331 if (unlikely(pci_channel_offline(phba->pcidev))) {
12332 spin_unlock_irq(&phba->hbalock);
12336 switch (phba->sli_rev) {
12337 case LPFC_SLI_REV2:
12338 case LPFC_SLI_REV3:
12339 /* Read chip Host Attention (HA) register */
12340 ha_copy = lpfc_sli_eratt_read(phba);
12342 case LPFC_SLI_REV4:
12343 /* Read device Uncoverable Error (UERR) registers */
12344 ha_copy = lpfc_sli4_eratt_read(phba);
12347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12348 "0299 Invalid SLI revision (%d)\n",
12353 spin_unlock_irq(&phba->hbalock);
12359 * lpfc_intr_state_check - Check device state for interrupt handling
12360 * @phba: Pointer to HBA context.
12362 * This inline routine checks whether a device or its PCI slot is in a state
12363 * that the interrupt should be handled.
12365 * This function returns 0 if the device or the PCI slot is in a state that
12366 * interrupt should be handled, otherwise -EIO.
12369 lpfc_intr_state_check(struct lpfc_hba *phba)
12371 /* If the pci channel is offline, ignore all the interrupts */
12372 if (unlikely(pci_channel_offline(phba->pcidev)))
12375 /* Update device level interrupt statistics */
12376 phba->sli.slistat.sli_intr++;
12378 /* Ignore all interrupts during initialization. */
12379 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
12386 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
12387 * @irq: Interrupt number.
12388 * @dev_id: The device context pointer.
12390 * This function is directly called from the PCI layer as an interrupt
12391 * service routine when device with SLI-3 interface spec is enabled with
12392 * MSI-X multi-message interrupt mode and there are slow-path events in
12393 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
12394 * interrupt mode, this function is called as part of the device-level
12395 * interrupt handler. When the PCI slot is in error recovery or the HBA
12396 * is undergoing initialization, the interrupt handler will not process
12397 * the interrupt. The link attention and ELS ring attention events are
12398 * handled by the worker thread. The interrupt handler signals the worker
12399 * thread and returns for these events. This function is called without
12400 * any lock held. It gets the hbalock to access and update SLI data
12403 * This function returns IRQ_HANDLED when interrupt is handled else it
12404 * returns IRQ_NONE.
12407 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
12409 struct lpfc_hba *phba;
12410 uint32_t ha_copy, hc_copy;
12411 uint32_t work_ha_copy;
12412 unsigned long status;
12413 unsigned long iflag;
12416 MAILBOX_t *mbox, *pmbox;
12417 struct lpfc_vport *vport;
12418 struct lpfc_nodelist *ndlp;
12419 struct lpfc_dmabuf *mp;
12424 * Get the driver's phba structure from the dev_id and
12425 * assume the HBA is not interrupting.
12427 phba = (struct lpfc_hba *)dev_id;
12429 if (unlikely(!phba))
12433 * Stuff needs to be attented to when this function is invoked as an
12434 * individual interrupt handler in MSI-X multi-message interrupt mode
12436 if (phba->intr_type == MSIX) {
12437 /* Check device state for handling interrupt */
12438 if (lpfc_intr_state_check(phba))
12440 /* Need to read HA REG for slow-path events */
12441 spin_lock_irqsave(&phba->hbalock, iflag);
12442 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12444 /* If somebody is waiting to handle an eratt don't process it
12445 * here. The brdkill function will do this.
12447 if (phba->link_flag & LS_IGNORE_ERATT)
12448 ha_copy &= ~HA_ERATT;
12449 /* Check the need for handling ERATT in interrupt handler */
12450 if (ha_copy & HA_ERATT) {
12451 if (phba->hba_flag & HBA_ERATT_HANDLED)
12452 /* ERATT polling has handled ERATT */
12453 ha_copy &= ~HA_ERATT;
12455 /* Indicate interrupt handler handles ERATT */
12456 phba->hba_flag |= HBA_ERATT_HANDLED;
12460 * If there is deferred error attention, do not check for any
12463 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12464 spin_unlock_irqrestore(&phba->hbalock, iflag);
12468 /* Clear up only attention source related to slow-path */
12469 if (lpfc_readl(phba->HCregaddr, &hc_copy))
12472 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
12473 HC_LAINT_ENA | HC_ERINT_ENA),
12475 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
12477 writel(hc_copy, phba->HCregaddr);
12478 readl(phba->HAregaddr); /* flush */
12479 spin_unlock_irqrestore(&phba->hbalock, iflag);
12481 ha_copy = phba->ha_copy;
12483 work_ha_copy = ha_copy & phba->work_ha_mask;
12485 if (work_ha_copy) {
12486 if (work_ha_copy & HA_LATT) {
12487 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
12489 * Turn off Link Attention interrupts
12490 * until CLEAR_LA done
12492 spin_lock_irqsave(&phba->hbalock, iflag);
12493 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
12494 if (lpfc_readl(phba->HCregaddr, &control))
12496 control &= ~HC_LAINT_ENA;
12497 writel(control, phba->HCregaddr);
12498 readl(phba->HCregaddr); /* flush */
12499 spin_unlock_irqrestore(&phba->hbalock, iflag);
12502 work_ha_copy &= ~HA_LATT;
12505 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
12507 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
12508 * the only slow ring.
12510 status = (work_ha_copy &
12511 (HA_RXMASK << (4*LPFC_ELS_RING)));
12512 status >>= (4*LPFC_ELS_RING);
12513 if (status & HA_RXMASK) {
12514 spin_lock_irqsave(&phba->hbalock, iflag);
12515 if (lpfc_readl(phba->HCregaddr, &control))
12518 lpfc_debugfs_slow_ring_trc(phba,
12519 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
12521 (uint32_t)phba->sli.slistat.sli_intr);
12523 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
12524 lpfc_debugfs_slow_ring_trc(phba,
12525 "ISR Disable ring:"
12526 "pwork:x%x hawork:x%x wait:x%x",
12527 phba->work_ha, work_ha_copy,
12528 (uint32_t)((unsigned long)
12529 &phba->work_waitq));
12532 ~(HC_R0INT_ENA << LPFC_ELS_RING);
12533 writel(control, phba->HCregaddr);
12534 readl(phba->HCregaddr); /* flush */
12537 lpfc_debugfs_slow_ring_trc(phba,
12538 "ISR slow ring: pwork:"
12539 "x%x hawork:x%x wait:x%x",
12540 phba->work_ha, work_ha_copy,
12541 (uint32_t)((unsigned long)
12542 &phba->work_waitq));
12544 spin_unlock_irqrestore(&phba->hbalock, iflag);
12547 spin_lock_irqsave(&phba->hbalock, iflag);
12548 if (work_ha_copy & HA_ERATT) {
12549 if (lpfc_sli_read_hs(phba))
12552 * Check if there is a deferred error condition
12555 if ((HS_FFER1 & phba->work_hs) &&
12556 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12557 HS_FFER6 | HS_FFER7 | HS_FFER8) &
12559 phba->hba_flag |= DEFER_ERATT;
12560 /* Clear all interrupt enable conditions */
12561 writel(0, phba->HCregaddr);
12562 readl(phba->HCregaddr);
12566 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
12567 pmb = phba->sli.mbox_active;
12568 pmbox = &pmb->u.mb;
12570 vport = pmb->vport;
12572 /* First check out the status word */
12573 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
12574 if (pmbox->mbxOwner != OWN_HOST) {
12575 spin_unlock_irqrestore(&phba->hbalock, iflag);
12577 * Stray Mailbox Interrupt, mbxCommand <cmd>
12578 * mbxStatus <status>
12580 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12582 "(%d):0304 Stray Mailbox "
12583 "Interrupt mbxCommand x%x "
12585 (vport ? vport->vpi : 0),
12588 /* clear mailbox attention bit */
12589 work_ha_copy &= ~HA_MBATT;
12591 phba->sli.mbox_active = NULL;
12592 spin_unlock_irqrestore(&phba->hbalock, iflag);
12593 phba->last_completion_time = jiffies;
12594 del_timer(&phba->sli.mbox_tmo);
12595 if (pmb->mbox_cmpl) {
12596 lpfc_sli_pcimem_bcopy(mbox, pmbox,
12598 if (pmb->out_ext_byte_len &&
12600 lpfc_sli_pcimem_bcopy(
12603 pmb->out_ext_byte_len);
12605 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12606 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12608 lpfc_debugfs_disc_trc(vport,
12609 LPFC_DISC_TRC_MBOX_VPORT,
12610 "MBOX dflt rpi: : "
12611 "status:x%x rpi:x%x",
12612 (uint32_t)pmbox->mbxStatus,
12613 pmbox->un.varWords[0], 0);
12615 if (!pmbox->mbxStatus) {
12616 mp = (struct lpfc_dmabuf *)
12618 ndlp = (struct lpfc_nodelist *)
12621 /* Reg_LOGIN of dflt RPI was
12622 * successful. new lets get
12623 * rid of the RPI using the
12624 * same mbox buffer.
12626 lpfc_unreg_login(phba,
12628 pmbox->un.varWords[0],
12631 lpfc_mbx_cmpl_dflt_rpi;
12633 pmb->ctx_ndlp = ndlp;
12634 pmb->vport = vport;
12635 rc = lpfc_sli_issue_mbox(phba,
12638 if (rc != MBX_BUSY)
12639 lpfc_printf_log(phba,
12641 LOG_MBOX | LOG_SLI,
12642 "0350 rc should have"
12643 "been MBX_BUSY\n");
12644 if (rc != MBX_NOT_FINISHED)
12645 goto send_current_mbox;
12649 &phba->pport->work_port_lock,
12651 phba->pport->work_port_events &=
12653 spin_unlock_irqrestore(
12654 &phba->pport->work_port_lock,
12656 lpfc_mbox_cmpl_put(phba, pmb);
12659 spin_unlock_irqrestore(&phba->hbalock, iflag);
12661 if ((work_ha_copy & HA_MBATT) &&
12662 (phba->sli.mbox_active == NULL)) {
12664 /* Process next mailbox command if there is one */
12666 rc = lpfc_sli_issue_mbox(phba, NULL,
12668 } while (rc == MBX_NOT_FINISHED);
12669 if (rc != MBX_SUCCESS)
12670 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12671 LOG_SLI, "0349 rc should be "
12675 spin_lock_irqsave(&phba->hbalock, iflag);
12676 phba->work_ha |= work_ha_copy;
12677 spin_unlock_irqrestore(&phba->hbalock, iflag);
12678 lpfc_worker_wake_up(phba);
12680 return IRQ_HANDLED;
12682 spin_unlock_irqrestore(&phba->hbalock, iflag);
12683 return IRQ_HANDLED;
12685 } /* lpfc_sli_sp_intr_handler */
12688 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
12689 * @irq: Interrupt number.
12690 * @dev_id: The device context pointer.
12692 * This function is directly called from the PCI layer as an interrupt
12693 * service routine when device with SLI-3 interface spec is enabled with
12694 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12695 * ring event in the HBA. However, when the device is enabled with either
12696 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12697 * device-level interrupt handler. When the PCI slot is in error recovery
12698 * or the HBA is undergoing initialization, the interrupt handler will not
12699 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12700 * the intrrupt context. This function is called without any lock held.
12701 * It gets the hbalock to access and update SLI data structures.
12703 * This function returns IRQ_HANDLED when interrupt is handled else it
12704 * returns IRQ_NONE.
12707 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
12709 struct lpfc_hba *phba;
12711 unsigned long status;
12712 unsigned long iflag;
12713 struct lpfc_sli_ring *pring;
12715 /* Get the driver's phba structure from the dev_id and
12716 * assume the HBA is not interrupting.
12718 phba = (struct lpfc_hba *) dev_id;
12720 if (unlikely(!phba))
12724 * Stuff needs to be attented to when this function is invoked as an
12725 * individual interrupt handler in MSI-X multi-message interrupt mode
12727 if (phba->intr_type == MSIX) {
12728 /* Check device state for handling interrupt */
12729 if (lpfc_intr_state_check(phba))
12731 /* Need to read HA REG for FCP ring and other ring events */
12732 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12733 return IRQ_HANDLED;
12734 /* Clear up only attention source related to fast-path */
12735 spin_lock_irqsave(&phba->hbalock, iflag);
12737 * If there is deferred error attention, do not check for
12740 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12741 spin_unlock_irqrestore(&phba->hbalock, iflag);
12744 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12746 readl(phba->HAregaddr); /* flush */
12747 spin_unlock_irqrestore(&phba->hbalock, iflag);
12749 ha_copy = phba->ha_copy;
12752 * Process all events on FCP ring. Take the optimized path for FCP IO.
12754 ha_copy &= ~(phba->work_ha_mask);
12756 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12757 status >>= (4*LPFC_FCP_RING);
12758 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12759 if (status & HA_RXMASK)
12760 lpfc_sli_handle_fast_ring_event(phba, pring, status);
12762 if (phba->cfg_multi_ring_support == 2) {
12764 * Process all events on extra ring. Take the optimized path
12765 * for extra ring IO.
12767 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12768 status >>= (4*LPFC_EXTRA_RING);
12769 if (status & HA_RXMASK) {
12770 lpfc_sli_handle_fast_ring_event(phba,
12771 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
12775 return IRQ_HANDLED;
12776 } /* lpfc_sli_fp_intr_handler */
12779 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
12780 * @irq: Interrupt number.
12781 * @dev_id: The device context pointer.
12783 * This function is the HBA device-level interrupt handler to device with
12784 * SLI-3 interface spec, called from the PCI layer when either MSI or
12785 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12786 * requires driver attention. This function invokes the slow-path interrupt
12787 * attention handling function and fast-path interrupt attention handling
12788 * function in turn to process the relevant HBA attention events. This
12789 * function is called without any lock held. It gets the hbalock to access
12790 * and update SLI data structures.
12792 * This function returns IRQ_HANDLED when interrupt is handled, else it
12793 * returns IRQ_NONE.
12796 lpfc_sli_intr_handler(int irq, void *dev_id)
12798 struct lpfc_hba *phba;
12799 irqreturn_t sp_irq_rc, fp_irq_rc;
12800 unsigned long status1, status2;
12804 * Get the driver's phba structure from the dev_id and
12805 * assume the HBA is not interrupting.
12807 phba = (struct lpfc_hba *) dev_id;
12809 if (unlikely(!phba))
12812 /* Check device state for handling interrupt */
12813 if (lpfc_intr_state_check(phba))
12816 spin_lock(&phba->hbalock);
12817 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12818 spin_unlock(&phba->hbalock);
12819 return IRQ_HANDLED;
12822 if (unlikely(!phba->ha_copy)) {
12823 spin_unlock(&phba->hbalock);
12825 } else if (phba->ha_copy & HA_ERATT) {
12826 if (phba->hba_flag & HBA_ERATT_HANDLED)
12827 /* ERATT polling has handled ERATT */
12828 phba->ha_copy &= ~HA_ERATT;
12830 /* Indicate interrupt handler handles ERATT */
12831 phba->hba_flag |= HBA_ERATT_HANDLED;
12835 * If there is deferred error attention, do not check for any interrupt.
12837 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12838 spin_unlock(&phba->hbalock);
12842 /* Clear attention sources except link and error attentions */
12843 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12844 spin_unlock(&phba->hbalock);
12845 return IRQ_HANDLED;
12847 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12848 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12850 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
12851 writel(hc_copy, phba->HCregaddr);
12852 readl(phba->HAregaddr); /* flush */
12853 spin_unlock(&phba->hbalock);
12856 * Invokes slow-path host attention interrupt handling as appropriate.
12859 /* status of events with mailbox and link attention */
12860 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12862 /* status of events with ELS ring */
12863 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12864 status2 >>= (4*LPFC_ELS_RING);
12866 if (status1 || (status2 & HA_RXMASK))
12867 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
12869 sp_irq_rc = IRQ_NONE;
12872 * Invoke fast-path host attention interrupt handling as appropriate.
12875 /* status of events with FCP ring */
12876 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12877 status1 >>= (4*LPFC_FCP_RING);
12879 /* status of events with extra ring */
12880 if (phba->cfg_multi_ring_support == 2) {
12881 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12882 status2 >>= (4*LPFC_EXTRA_RING);
12886 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
12887 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
12889 fp_irq_rc = IRQ_NONE;
12891 /* Return device-level interrupt handling status */
12892 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
12893 } /* lpfc_sli_intr_handler */
12896 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12897 * @phba: pointer to lpfc hba data structure.
12899 * This routine is invoked by the worker thread to process all the pending
12900 * SLI4 els abort xri events.
12902 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12904 struct lpfc_cq_event *cq_event;
12906 /* First, declare the els xri abort event has been handled */
12907 spin_lock_irq(&phba->hbalock);
12908 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12909 spin_unlock_irq(&phba->hbalock);
12910 /* Now, handle all the els xri abort events */
12911 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12912 /* Get the first event from the head of the event queue */
12913 spin_lock_irq(&phba->hbalock);
12914 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12915 cq_event, struct lpfc_cq_event, list);
12916 spin_unlock_irq(&phba->hbalock);
12917 /* Notify aborted XRI for ELS work queue */
12918 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12919 /* Free the event processed back to the free pool */
12920 lpfc_sli4_cq_event_release(phba, cq_event);
12925 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12926 * @phba: pointer to lpfc hba data structure
12927 * @pIocbIn: pointer to the rspiocbq
12928 * @pIocbOut: pointer to the cmdiocbq
12929 * @wcqe: pointer to the complete wcqe
12931 * This routine transfers the fields of a command iocbq to a response iocbq
12932 * by copying all the IOCB fields from command iocbq and transferring the
12933 * completion status information from the complete wcqe.
12936 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12937 struct lpfc_iocbq *pIocbIn,
12938 struct lpfc_iocbq *pIocbOut,
12939 struct lpfc_wcqe_complete *wcqe)
12942 unsigned long iflags;
12943 uint32_t status, max_response;
12944 struct lpfc_dmabuf *dmabuf;
12945 struct ulp_bde64 *bpl, bde;
12946 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12948 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12949 sizeof(struct lpfc_iocbq) - offset);
12950 /* Map WCQE parameters into irspiocb parameters */
12951 status = bf_get(lpfc_wcqe_c_status, wcqe);
12952 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
12953 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12954 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12955 pIocbIn->iocb.un.fcpi.fcpi_parm =
12956 pIocbOut->iocb.un.fcpi.fcpi_parm -
12957 wcqe->total_data_placed;
12959 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12961 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12962 switch (pIocbOut->iocb.ulpCommand) {
12963 case CMD_ELS_REQUEST64_CR:
12964 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12965 bpl = (struct ulp_bde64 *)dmabuf->virt;
12966 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12967 max_response = bde.tus.f.bdeSize;
12969 case CMD_GEN_REQUEST64_CR:
12971 if (!pIocbOut->context3)
12973 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12974 sizeof(struct ulp_bde64);
12975 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12976 bpl = (struct ulp_bde64 *)dmabuf->virt;
12977 for (i = 0; i < numBdes; i++) {
12978 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12979 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12980 max_response += bde.tus.f.bdeSize;
12984 max_response = wcqe->total_data_placed;
12987 if (max_response < wcqe->total_data_placed)
12988 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12990 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12991 wcqe->total_data_placed;
12994 /* Convert BG errors for completion status */
12995 if (status == CQE_STATUS_DI_ERROR) {
12996 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
12998 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
12999 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
13001 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
13003 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
13004 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
13005 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13006 BGS_GUARD_ERR_MASK;
13007 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
13008 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13009 BGS_APPTAG_ERR_MASK;
13010 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
13011 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13012 BGS_REFTAG_ERR_MASK;
13014 /* Check to see if there was any good data before the error */
13015 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
13016 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13017 BGS_HI_WATER_MARK_PRESENT_MASK;
13018 pIocbIn->iocb.unsli3.sli3_bg.bghm =
13019 wcqe->total_data_placed;
13023 * Set ALL the error bits to indicate we don't know what
13024 * type of error it is.
13026 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
13027 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13028 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
13029 BGS_GUARD_ERR_MASK);
13032 /* Pick up HBA exchange busy condition */
13033 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
13034 spin_lock_irqsave(&phba->hbalock, iflags);
13035 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
13036 spin_unlock_irqrestore(&phba->hbalock, iflags);
13041 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
13042 * @phba: Pointer to HBA context object.
13043 * @wcqe: Pointer to work-queue completion queue entry.
13045 * This routine handles an ELS work-queue completion event and construct
13046 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
13047 * discovery engine to handle.
13049 * Return: Pointer to the receive IOCBQ, NULL otherwise.
13051 static struct lpfc_iocbq *
13052 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
13053 struct lpfc_iocbq *irspiocbq)
13055 struct lpfc_sli_ring *pring;
13056 struct lpfc_iocbq *cmdiocbq;
13057 struct lpfc_wcqe_complete *wcqe;
13058 unsigned long iflags;
13060 pring = lpfc_phba_elsring(phba);
13061 if (unlikely(!pring))
13064 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
13065 spin_lock_irqsave(&pring->ring_lock, iflags);
13066 pring->stats.iocb_event++;
13067 /* Look up the ELS command IOCB and create pseudo response IOCB */
13068 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13069 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13070 if (unlikely(!cmdiocbq)) {
13071 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13072 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13073 "0386 ELS complete with no corresponding "
13074 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
13075 wcqe->word0, wcqe->total_data_placed,
13076 wcqe->parameter, wcqe->word3);
13077 lpfc_sli_release_iocbq(phba, irspiocbq);
13081 /* Put the iocb back on the txcmplq */
13082 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
13083 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13085 /* Fake the irspiocbq and copy necessary response information */
13086 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
13091 inline struct lpfc_cq_event *
13092 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
13094 struct lpfc_cq_event *cq_event;
13096 /* Allocate a new internal CQ_EVENT entry */
13097 cq_event = lpfc_sli4_cq_event_alloc(phba);
13099 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13100 "0602 Failed to alloc CQ_EVENT entry\n");
13104 /* Move the CQE into the event */
13105 memcpy(&cq_event->cqe, entry, size);
13110 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
13111 * @phba: Pointer to HBA context object.
13112 * @cqe: Pointer to mailbox completion queue entry.
13114 * This routine process a mailbox completion queue entry with asynchrous
13117 * Return: true if work posted to worker thread, otherwise false.
13120 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13122 struct lpfc_cq_event *cq_event;
13123 unsigned long iflags;
13125 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13126 "0392 Async Event: word0:x%x, word1:x%x, "
13127 "word2:x%x, word3:x%x\n", mcqe->word0,
13128 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
13130 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
13133 spin_lock_irqsave(&phba->hbalock, iflags);
13134 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
13135 /* Set the async event flag */
13136 phba->hba_flag |= ASYNC_EVENT;
13137 spin_unlock_irqrestore(&phba->hbalock, iflags);
13143 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
13144 * @phba: Pointer to HBA context object.
13145 * @cqe: Pointer to mailbox completion queue entry.
13147 * This routine process a mailbox completion queue entry with mailbox
13148 * completion event.
13150 * Return: true if work posted to worker thread, otherwise false.
13153 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13155 uint32_t mcqe_status;
13156 MAILBOX_t *mbox, *pmbox;
13157 struct lpfc_mqe *mqe;
13158 struct lpfc_vport *vport;
13159 struct lpfc_nodelist *ndlp;
13160 struct lpfc_dmabuf *mp;
13161 unsigned long iflags;
13163 bool workposted = false;
13166 /* If not a mailbox complete MCQE, out by checking mailbox consume */
13167 if (!bf_get(lpfc_trailer_completed, mcqe))
13168 goto out_no_mqe_complete;
13170 /* Get the reference to the active mbox command */
13171 spin_lock_irqsave(&phba->hbalock, iflags);
13172 pmb = phba->sli.mbox_active;
13173 if (unlikely(!pmb)) {
13174 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13175 "1832 No pending MBOX command to handle\n");
13176 spin_unlock_irqrestore(&phba->hbalock, iflags);
13177 goto out_no_mqe_complete;
13179 spin_unlock_irqrestore(&phba->hbalock, iflags);
13181 pmbox = (MAILBOX_t *)&pmb->u.mqe;
13183 vport = pmb->vport;
13185 /* Reset heartbeat timer */
13186 phba->last_completion_time = jiffies;
13187 del_timer(&phba->sli.mbox_tmo);
13189 /* Move mbox data to caller's mailbox region, do endian swapping */
13190 if (pmb->mbox_cmpl && mbox)
13191 lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
13194 * For mcqe errors, conditionally move a modified error code to
13195 * the mbox so that the error will not be missed.
13197 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
13198 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
13199 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
13200 bf_set(lpfc_mqe_status, mqe,
13201 (LPFC_MBX_ERROR_RANGE | mcqe_status));
13203 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
13204 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
13205 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
13206 "MBOX dflt rpi: status:x%x rpi:x%x",
13208 pmbox->un.varWords[0], 0);
13209 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
13210 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
13211 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
13212 /* Reg_LOGIN of dflt RPI was successful. Now lets get
13213 * RID of the PPI using the same mbox buffer.
13215 lpfc_unreg_login(phba, vport->vpi,
13216 pmbox->un.varWords[0], pmb);
13217 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
13219 pmb->ctx_ndlp = ndlp;
13220 pmb->vport = vport;
13221 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
13222 if (rc != MBX_BUSY)
13223 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
13224 LOG_SLI, "0385 rc should "
13225 "have been MBX_BUSY\n");
13226 if (rc != MBX_NOT_FINISHED)
13227 goto send_current_mbox;
13230 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
13231 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
13232 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
13234 /* There is mailbox completion work to do */
13235 spin_lock_irqsave(&phba->hbalock, iflags);
13236 __lpfc_mbox_cmpl_put(phba, pmb);
13237 phba->work_ha |= HA_MBATT;
13238 spin_unlock_irqrestore(&phba->hbalock, iflags);
13242 spin_lock_irqsave(&phba->hbalock, iflags);
13243 /* Release the mailbox command posting token */
13244 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13245 /* Setting active mailbox pointer need to be in sync to flag clear */
13246 phba->sli.mbox_active = NULL;
13247 spin_unlock_irqrestore(&phba->hbalock, iflags);
13248 /* Wake up worker thread to post the next pending mailbox command */
13249 lpfc_worker_wake_up(phba);
13250 out_no_mqe_complete:
13251 if (bf_get(lpfc_trailer_consumed, mcqe))
13252 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13257 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
13258 * @phba: Pointer to HBA context object.
13259 * @cqe: Pointer to mailbox completion queue entry.
13261 * This routine process a mailbox completion queue entry, it invokes the
13262 * proper mailbox complete handling or asynchrous event handling routine
13263 * according to the MCQE's async bit.
13265 * Return: true if work posted to worker thread, otherwise false.
13268 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
13270 struct lpfc_mcqe mcqe;
13273 /* Copy the mailbox MCQE and convert endian order as needed */
13274 lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
13276 /* Invoke the proper event handling routine */
13277 if (!bf_get(lpfc_trailer_async, &mcqe))
13278 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
13280 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
13285 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
13286 * @phba: Pointer to HBA context object.
13287 * @cq: Pointer to associated CQ
13288 * @wcqe: Pointer to work-queue completion queue entry.
13290 * This routine handles an ELS work-queue completion event.
13292 * Return: true if work posted to worker thread, otherwise false.
13295 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13296 struct lpfc_wcqe_complete *wcqe)
13298 struct lpfc_iocbq *irspiocbq;
13299 unsigned long iflags;
13300 struct lpfc_sli_ring *pring = cq->pring;
13302 int txcmplq_cnt = 0;
13303 int fcp_txcmplq_cnt = 0;
13305 /* Check for response status */
13306 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13307 /* Log the error status */
13308 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13309 "0357 ELS CQE error: status=x%x: "
13310 "CQE: %08x %08x %08x %08x\n",
13311 bf_get(lpfc_wcqe_c_status, wcqe),
13312 wcqe->word0, wcqe->total_data_placed,
13313 wcqe->parameter, wcqe->word3);
13316 /* Get an irspiocbq for later ELS response processing use */
13317 irspiocbq = lpfc_sli_get_iocbq(phba);
13319 if (!list_empty(&pring->txq))
13321 if (!list_empty(&pring->txcmplq))
13323 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13324 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
13325 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
13326 txq_cnt, phba->iocb_cnt,
13332 /* Save off the slow-path queue event for work thread to process */
13333 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
13334 spin_lock_irqsave(&phba->hbalock, iflags);
13335 list_add_tail(&irspiocbq->cq_event.list,
13336 &phba->sli4_hba.sp_queue_event);
13337 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13338 spin_unlock_irqrestore(&phba->hbalock, iflags);
13344 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
13345 * @phba: Pointer to HBA context object.
13346 * @wcqe: Pointer to work-queue completion queue entry.
13348 * This routine handles slow-path WQ entry consumed event by invoking the
13349 * proper WQ release routine to the slow-path WQ.
13352 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
13353 struct lpfc_wcqe_release *wcqe)
13355 /* sanity check on queue memory */
13356 if (unlikely(!phba->sli4_hba.els_wq))
13358 /* Check for the slow-path ELS work queue */
13359 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
13360 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
13361 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13363 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13364 "2579 Slow-path wqe consume event carries "
13365 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
13366 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
13367 phba->sli4_hba.els_wq->queue_id);
13371 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
13372 * @phba: Pointer to HBA context object.
13373 * @cq: Pointer to a WQ completion queue.
13374 * @wcqe: Pointer to work-queue completion queue entry.
13376 * This routine handles an XRI abort event.
13378 * Return: true if work posted to worker thread, otherwise false.
13381 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
13382 struct lpfc_queue *cq,
13383 struct sli4_wcqe_xri_aborted *wcqe)
13385 bool workposted = false;
13386 struct lpfc_cq_event *cq_event;
13387 unsigned long iflags;
13389 switch (cq->subtype) {
13391 lpfc_sli4_fcp_xri_aborted(phba, wcqe, cq->hdwq);
13392 workposted = false;
13394 case LPFC_NVME_LS: /* NVME LS uses ELS resources */
13396 cq_event = lpfc_cq_event_setup(
13397 phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
13400 cq_event->hdwq = cq->hdwq;
13401 spin_lock_irqsave(&phba->hbalock, iflags);
13402 list_add_tail(&cq_event->list,
13403 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
13404 /* Set the els xri abort event flag */
13405 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
13406 spin_unlock_irqrestore(&phba->hbalock, iflags);
13410 /* Notify aborted XRI for NVME work queue */
13411 if (phba->nvmet_support)
13412 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
13414 lpfc_sli4_nvme_xri_aborted(phba, wcqe, cq->hdwq);
13416 workposted = false;
13419 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13420 "0603 Invalid CQ subtype %d: "
13421 "%08x %08x %08x %08x\n",
13422 cq->subtype, wcqe->word0, wcqe->parameter,
13423 wcqe->word2, wcqe->word3);
13424 workposted = false;
13430 #define FC_RCTL_MDS_DIAGS 0xF4
13433 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
13434 * @phba: Pointer to HBA context object.
13435 * @rcqe: Pointer to receive-queue completion queue entry.
13437 * This routine process a receive-queue completion queue entry.
13439 * Return: true if work posted to worker thread, otherwise false.
13442 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
13444 bool workposted = false;
13445 struct fc_frame_header *fc_hdr;
13446 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
13447 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
13448 struct lpfc_nvmet_tgtport *tgtp;
13449 struct hbq_dmabuf *dma_buf;
13450 uint32_t status, rq_id;
13451 unsigned long iflags;
13453 /* sanity check on queue memory */
13454 if (unlikely(!hrq) || unlikely(!drq))
13457 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13458 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13460 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13461 if (rq_id != hrq->queue_id)
13464 status = bf_get(lpfc_rcqe_status, rcqe);
13466 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13467 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13468 "2537 Receive Frame Truncated!!\n");
13469 case FC_STATUS_RQ_SUCCESS:
13470 spin_lock_irqsave(&phba->hbalock, iflags);
13471 lpfc_sli4_rq_release(hrq, drq);
13472 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
13474 hrq->RQ_no_buf_found++;
13475 spin_unlock_irqrestore(&phba->hbalock, iflags);
13479 hrq->RQ_buf_posted--;
13480 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
13482 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13484 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
13485 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
13486 spin_unlock_irqrestore(&phba->hbalock, iflags);
13487 /* Handle MDS Loopback frames */
13488 lpfc_sli4_handle_mds_loopback(phba->pport, dma_buf);
13492 /* save off the frame for the work thread to process */
13493 list_add_tail(&dma_buf->cq_event.list,
13494 &phba->sli4_hba.sp_queue_event);
13495 /* Frame received */
13496 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13497 spin_unlock_irqrestore(&phba->hbalock, iflags);
13500 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13501 if (phba->nvmet_support) {
13502 tgtp = phba->targetport->private;
13503 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13504 "6402 RQE Error x%x, posted %d err_cnt "
13506 status, hrq->RQ_buf_posted,
13507 hrq->RQ_no_posted_buf,
13508 atomic_read(&tgtp->rcv_fcp_cmd_in),
13509 atomic_read(&tgtp->rcv_fcp_cmd_out),
13510 atomic_read(&tgtp->xmt_fcp_release));
13514 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13515 hrq->RQ_no_posted_buf++;
13516 /* Post more buffers if possible */
13517 spin_lock_irqsave(&phba->hbalock, iflags);
13518 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
13519 spin_unlock_irqrestore(&phba->hbalock, iflags);
13528 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
13529 * @phba: Pointer to HBA context object.
13530 * @cq: Pointer to the completion queue.
13531 * @wcqe: Pointer to a completion queue entry.
13533 * This routine process a slow-path work-queue or receive queue completion queue
13536 * Return: true if work posted to worker thread, otherwise false.
13539 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13540 struct lpfc_cqe *cqe)
13542 struct lpfc_cqe cqevt;
13543 bool workposted = false;
13545 /* Copy the work queue CQE and convert endian order if needed */
13546 lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
13548 /* Check and process for different type of WCQE and dispatch */
13549 switch (bf_get(lpfc_cqe_code, &cqevt)) {
13550 case CQE_CODE_COMPL_WQE:
13551 /* Process the WQ/RQ complete event */
13552 phba->last_completion_time = jiffies;
13553 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
13554 (struct lpfc_wcqe_complete *)&cqevt);
13556 case CQE_CODE_RELEASE_WQE:
13557 /* Process the WQ release event */
13558 lpfc_sli4_sp_handle_rel_wcqe(phba,
13559 (struct lpfc_wcqe_release *)&cqevt);
13561 case CQE_CODE_XRI_ABORTED:
13562 /* Process the WQ XRI abort event */
13563 phba->last_completion_time = jiffies;
13564 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13565 (struct sli4_wcqe_xri_aborted *)&cqevt);
13567 case CQE_CODE_RECEIVE:
13568 case CQE_CODE_RECEIVE_V1:
13569 /* Process the RQ event */
13570 phba->last_completion_time = jiffies;
13571 workposted = lpfc_sli4_sp_handle_rcqe(phba,
13572 (struct lpfc_rcqe *)&cqevt);
13575 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13576 "0388 Not a valid WCQE code: x%x\n",
13577 bf_get(lpfc_cqe_code, &cqevt));
13584 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
13585 * @phba: Pointer to HBA context object.
13586 * @eqe: Pointer to fast-path event queue entry.
13588 * This routine process a event queue entry from the slow-path event queue.
13589 * It will check the MajorCode and MinorCode to determine this is for a
13590 * completion event on a completion queue, if not, an error shall be logged
13591 * and just return. Otherwise, it will get to the corresponding completion
13592 * queue and process all the entries on that completion queue, rearm the
13593 * completion queue, and then return.
13597 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13598 struct lpfc_queue *speq)
13600 struct lpfc_queue *cq = NULL, *childq;
13603 /* Get the reference to the corresponding CQ */
13604 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13606 list_for_each_entry(childq, &speq->child_list, list) {
13607 if (childq->queue_id == cqid) {
13612 if (unlikely(!cq)) {
13613 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13614 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13615 "0365 Slow-path CQ identifier "
13616 "(%d) does not exist\n", cqid);
13620 /* Save EQ associated with this CQ */
13621 cq->assoc_qp = speq;
13623 if (!queue_work(phba->wq, &cq->spwork))
13624 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13625 "0390 Cannot schedule soft IRQ "
13626 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
13627 cqid, cq->queue_id, smp_processor_id());
13631 * lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
13632 * @phba: Pointer to HBA context object.
13634 * This routine process a event queue entry from the slow-path event queue.
13635 * It will check the MajorCode and MinorCode to determine this is for a
13636 * completion event on a completion queue, if not, an error shall be logged
13637 * and just return. Otherwise, it will get to the corresponding completion
13638 * queue and process all the entries on that completion queue, rearm the
13639 * completion queue, and then return.
13643 lpfc_sli4_sp_process_cq(struct work_struct *work)
13645 struct lpfc_queue *cq =
13646 container_of(work, struct lpfc_queue, spwork);
13647 struct lpfc_hba *phba = cq->phba;
13648 struct lpfc_cqe *cqe;
13649 bool workposted = false;
13652 /* Process all the entries to the CQ */
13653 switch (cq->type) {
13655 while ((cqe = lpfc_sli4_cq_get(cq))) {
13656 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
13657 if (!(++ccount % cq->entry_repost))
13663 while ((cqe = lpfc_sli4_cq_get(cq))) {
13664 if (cq->subtype == LPFC_FCP ||
13665 cq->subtype == LPFC_NVME) {
13666 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13667 if (phba->ktime_on)
13668 cq->isr_timestamp = ktime_get_ns();
13670 cq->isr_timestamp = 0;
13672 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq,
13675 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
13678 if (!(++ccount % cq->entry_repost))
13682 /* Track the max number of CQEs processed in 1 EQ */
13683 if (ccount > cq->CQ_max_cqe)
13684 cq->CQ_max_cqe = ccount;
13687 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13688 "0370 Invalid completion queue type (%d)\n",
13693 /* Catch the no cq entry condition, log an error */
13694 if (unlikely(ccount == 0))
13695 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13696 "0371 No entry from the CQ: identifier "
13697 "(x%x), type (%d)\n", cq->queue_id, cq->type);
13699 /* In any case, flash and re-arm the RCQ */
13700 phba->sli4_hba.sli4_cq_release(cq, LPFC_QUEUE_REARM);
13702 /* wake up worker thread if there are works to be done */
13704 lpfc_worker_wake_up(phba);
13708 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
13709 * @phba: Pointer to HBA context object.
13710 * @cq: Pointer to associated CQ
13711 * @wcqe: Pointer to work-queue completion queue entry.
13713 * This routine process a fast-path work queue completion entry from fast-path
13714 * event queue for FCP command response completion.
13717 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13718 struct lpfc_wcqe_complete *wcqe)
13720 struct lpfc_sli_ring *pring = cq->pring;
13721 struct lpfc_iocbq *cmdiocbq;
13722 struct lpfc_iocbq irspiocbq;
13723 unsigned long iflags;
13725 /* Check for response status */
13726 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13727 /* If resource errors reported from HBA, reduce queue
13728 * depth of the SCSI device.
13730 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13731 IOSTAT_LOCAL_REJECT)) &&
13732 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13733 IOERR_NO_RESOURCES))
13734 phba->lpfc_rampdown_queue_depth(phba);
13736 /* Log the error status */
13737 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13738 "0373 FCP CQE error: status=x%x: "
13739 "CQE: %08x %08x %08x %08x\n",
13740 bf_get(lpfc_wcqe_c_status, wcqe),
13741 wcqe->word0, wcqe->total_data_placed,
13742 wcqe->parameter, wcqe->word3);
13745 /* Look up the FCP command IOCB and create pseudo response IOCB */
13746 spin_lock_irqsave(&pring->ring_lock, iflags);
13747 pring->stats.iocb_event++;
13748 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13749 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13750 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13751 if (unlikely(!cmdiocbq)) {
13752 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13753 "0374 FCP complete with no corresponding "
13754 "cmdiocb: iotag (%d)\n",
13755 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13758 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13759 cmdiocbq->isr_timestamp = cq->isr_timestamp;
13761 if (cmdiocbq->iocb_cmpl == NULL) {
13762 if (cmdiocbq->wqe_cmpl) {
13763 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13764 spin_lock_irqsave(&phba->hbalock, iflags);
13765 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13766 spin_unlock_irqrestore(&phba->hbalock, iflags);
13769 /* Pass the cmd_iocb and the wcqe to the upper layer */
13770 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13773 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13774 "0375 FCP cmdiocb not callback function "
13776 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13780 /* Fake the irspiocb and copy necessary response information */
13781 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
13783 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13784 spin_lock_irqsave(&phba->hbalock, iflags);
13785 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13786 spin_unlock_irqrestore(&phba->hbalock, iflags);
13789 /* Pass the cmd_iocb and the rsp state to the upper layer */
13790 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13794 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13795 * @phba: Pointer to HBA context object.
13796 * @cq: Pointer to completion queue.
13797 * @wcqe: Pointer to work-queue completion queue entry.
13799 * This routine handles an fast-path WQ entry consumed event by invoking the
13800 * proper WQ release routine to the slow-path WQ.
13803 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13804 struct lpfc_wcqe_release *wcqe)
13806 struct lpfc_queue *childwq;
13807 bool wqid_matched = false;
13810 /* Check for fast-path FCP work queue release */
13811 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
13812 list_for_each_entry(childwq, &cq->child_list, list) {
13813 if (childwq->queue_id == hba_wqid) {
13814 lpfc_sli4_wq_release(childwq,
13815 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13816 if (childwq->q_flag & HBA_NVMET_WQFULL)
13817 lpfc_nvmet_wqfull_process(phba, childwq);
13818 wqid_matched = true;
13822 /* Report warning log message if no match found */
13823 if (wqid_matched != true)
13824 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13825 "2580 Fast-path wqe consume event carries "
13826 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
13830 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13831 * @phba: Pointer to HBA context object.
13832 * @rcqe: Pointer to receive-queue completion queue entry.
13834 * This routine process a receive-queue completion queue entry.
13836 * Return: true if work posted to worker thread, otherwise false.
13839 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13840 struct lpfc_rcqe *rcqe)
13842 bool workposted = false;
13843 struct lpfc_queue *hrq;
13844 struct lpfc_queue *drq;
13845 struct rqb_dmabuf *dma_buf;
13846 struct fc_frame_header *fc_hdr;
13847 struct lpfc_nvmet_tgtport *tgtp;
13848 uint32_t status, rq_id;
13849 unsigned long iflags;
13850 uint32_t fctl, idx;
13852 if ((phba->nvmet_support == 0) ||
13853 (phba->sli4_hba.nvmet_cqset == NULL))
13856 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13857 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13858 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13860 /* sanity check on queue memory */
13861 if (unlikely(!hrq) || unlikely(!drq))
13864 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13865 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13867 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13869 if ((phba->nvmet_support == 0) ||
13870 (rq_id != hrq->queue_id))
13873 status = bf_get(lpfc_rcqe_status, rcqe);
13875 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13876 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13877 "6126 Receive Frame Truncated!!\n");
13879 case FC_STATUS_RQ_SUCCESS:
13880 spin_lock_irqsave(&phba->hbalock, iflags);
13881 lpfc_sli4_rq_release(hrq, drq);
13882 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13884 hrq->RQ_no_buf_found++;
13885 spin_unlock_irqrestore(&phba->hbalock, iflags);
13888 spin_unlock_irqrestore(&phba->hbalock, iflags);
13890 hrq->RQ_buf_posted--;
13891 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13893 /* Just some basic sanity checks on FCP Command frame */
13894 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
13895 fc_hdr->fh_f_ctl[1] << 8 |
13896 fc_hdr->fh_f_ctl[2]);
13898 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
13899 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
13900 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
13903 if (fc_hdr->fh_type == FC_TYPE_FCP) {
13904 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
13905 lpfc_nvmet_unsol_fcp_event(
13906 phba, idx, dma_buf,
13907 cq->isr_timestamp);
13911 lpfc_in_buf_free(phba, &dma_buf->dbuf);
13913 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13914 if (phba->nvmet_support) {
13915 tgtp = phba->targetport->private;
13916 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13917 "6401 RQE Error x%x, posted %d err_cnt "
13919 status, hrq->RQ_buf_posted,
13920 hrq->RQ_no_posted_buf,
13921 atomic_read(&tgtp->rcv_fcp_cmd_in),
13922 atomic_read(&tgtp->rcv_fcp_cmd_out),
13923 atomic_read(&tgtp->xmt_fcp_release));
13927 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13928 hrq->RQ_no_posted_buf++;
13929 /* Post more buffers if possible */
13937 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
13938 * @cq: Pointer to the completion queue.
13939 * @eqe: Pointer to fast-path completion queue entry.
13941 * This routine process a fast-path work queue completion entry from fast-path
13942 * event queue for FCP command response completion.
13945 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13946 struct lpfc_cqe *cqe)
13948 struct lpfc_wcqe_release wcqe;
13949 bool workposted = false;
13951 /* Copy the work queue CQE and convert endian order if needed */
13952 lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
13954 /* Check and process for different type of WCQE and dispatch */
13955 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
13956 case CQE_CODE_COMPL_WQE:
13957 case CQE_CODE_NVME_ERSP:
13959 /* Process the WQ complete event */
13960 phba->last_completion_time = jiffies;
13961 if ((cq->subtype == LPFC_FCP) || (cq->subtype == LPFC_NVME))
13962 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13963 (struct lpfc_wcqe_complete *)&wcqe);
13964 if (cq->subtype == LPFC_NVME_LS)
13965 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13966 (struct lpfc_wcqe_complete *)&wcqe);
13968 case CQE_CODE_RELEASE_WQE:
13969 cq->CQ_release_wqe++;
13970 /* Process the WQ release event */
13971 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
13972 (struct lpfc_wcqe_release *)&wcqe);
13974 case CQE_CODE_XRI_ABORTED:
13975 cq->CQ_xri_aborted++;
13976 /* Process the WQ XRI abort event */
13977 phba->last_completion_time = jiffies;
13978 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13979 (struct sli4_wcqe_xri_aborted *)&wcqe);
13981 case CQE_CODE_RECEIVE_V1:
13982 case CQE_CODE_RECEIVE:
13983 phba->last_completion_time = jiffies;
13984 if (cq->subtype == LPFC_NVMET) {
13985 workposted = lpfc_sli4_nvmet_handle_rcqe(
13986 phba, cq, (struct lpfc_rcqe *)&wcqe);
13990 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13991 "0144 Not a valid CQE code: x%x\n",
13992 bf_get(lpfc_wcqe_c_code, &wcqe));
13999 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
14000 * @phba: Pointer to HBA context object.
14001 * @eqe: Pointer to fast-path event queue entry.
14003 * This routine process a event queue entry from the fast-path event queue.
14004 * It will check the MajorCode and MinorCode to determine this is for a
14005 * completion event on a completion queue, if not, an error shall be logged
14006 * and just return. Otherwise, it will get to the corresponding completion
14007 * queue and process all the entries on the completion queue, rearm the
14008 * completion queue, and then return.
14011 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
14014 struct lpfc_queue *cq = NULL;
14017 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
14018 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14019 "0366 Not a valid completion "
14020 "event: majorcode=x%x, minorcode=x%x\n",
14021 bf_get_le32(lpfc_eqe_major_code, eqe),
14022 bf_get_le32(lpfc_eqe_minor_code, eqe));
14026 /* Get the reference to the corresponding CQ */
14027 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14029 /* First check for NVME/SCSI completion */
14030 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
14031 (cqid == phba->sli4_hba.hdwq[qidx].nvme_cq_map)) {
14032 /* Process NVME / NVMET command completion */
14033 cq = phba->sli4_hba.hdwq[qidx].nvme_cq;
14037 if (cqid == phba->sli4_hba.hdwq[qidx].fcp_cq_map) {
14038 /* Process FCP command completion */
14039 cq = phba->sli4_hba.hdwq[qidx].fcp_cq;
14043 /* Next check for NVMET completion */
14044 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
14045 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
14046 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
14047 /* Process NVMET unsol rcv */
14048 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
14053 if (phba->sli4_hba.nvmels_cq &&
14054 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
14055 /* Process NVME unsol rcv */
14056 cq = phba->sli4_hba.nvmels_cq;
14059 /* Otherwise this is a Slow path event */
14061 lpfc_sli4_sp_handle_eqe(phba, eqe,
14062 phba->sli4_hba.hdwq[qidx].hba_eq);
14067 if (unlikely(cqid != cq->queue_id)) {
14068 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14069 "0368 Miss-matched fast-path completion "
14070 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
14071 cqid, cq->queue_id);
14075 /* Save EQ associated with this CQ */
14076 cq->assoc_qp = phba->sli4_hba.hdwq[qidx].hba_eq;
14078 if (!queue_work(phba->wq, &cq->irqwork))
14079 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14080 "0363 Cannot schedule soft IRQ "
14081 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14082 cqid, cq->queue_id, smp_processor_id());
14086 * lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
14087 * @phba: Pointer to HBA context object.
14088 * @eqe: Pointer to fast-path event queue entry.
14090 * This routine process a event queue entry from the fast-path event queue.
14091 * It will check the MajorCode and MinorCode to determine this is for a
14092 * completion event on a completion queue, if not, an error shall be logged
14093 * and just return. Otherwise, it will get to the corresponding completion
14094 * queue and process all the entries on the completion queue, rearm the
14095 * completion queue, and then return.
14098 lpfc_sli4_hba_process_cq(struct work_struct *work)
14100 struct lpfc_queue *cq =
14101 container_of(work, struct lpfc_queue, irqwork);
14102 struct lpfc_hba *phba = cq->phba;
14103 struct lpfc_cqe *cqe;
14104 bool workposted = false;
14107 /* Process all the entries to the CQ */
14108 while ((cqe = lpfc_sli4_cq_get(cq))) {
14109 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
14110 if (phba->ktime_on)
14111 cq->isr_timestamp = ktime_get_ns();
14113 cq->isr_timestamp = 0;
14115 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
14116 if (!(++ccount % cq->entry_repost))
14120 /* Track the max number of CQEs processed in 1 EQ */
14121 if (ccount > cq->CQ_max_cqe)
14122 cq->CQ_max_cqe = ccount;
14123 cq->assoc_qp->EQ_cqe_cnt += ccount;
14125 /* Catch the no cq entry condition */
14126 if (unlikely(ccount == 0))
14127 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14128 "0369 No entry from fast-path completion "
14129 "queue fcpcqid=%d\n", cq->queue_id);
14131 /* In any case, flash and re-arm the CQ */
14132 phba->sli4_hba.sli4_cq_release(cq, LPFC_QUEUE_REARM);
14134 /* wake up worker thread if there are works to be done */
14136 lpfc_worker_wake_up(phba);
14140 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
14142 struct lpfc_eqe *eqe;
14144 /* walk all the EQ entries and drop on the floor */
14145 while ((eqe = lpfc_sli4_eq_get(eq)))
14148 /* Clear and re-arm the EQ */
14149 phba->sli4_hba.sli4_eq_release(eq, LPFC_QUEUE_REARM);
14154 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
14155 * @irq: Interrupt number.
14156 * @dev_id: The device context pointer.
14158 * This function is directly called from the PCI layer as an interrupt
14159 * service routine when device with SLI-4 interface spec is enabled with
14160 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
14161 * ring event in the HBA. However, when the device is enabled with either
14162 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
14163 * device-level interrupt handler. When the PCI slot is in error recovery
14164 * or the HBA is undergoing initialization, the interrupt handler will not
14165 * process the interrupt. The SCSI FCP fast-path ring event are handled in
14166 * the intrrupt context. This function is called without any lock held.
14167 * It gets the hbalock to access and update SLI data structures. Note that,
14168 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
14169 * equal to that of FCP CQ index.
14171 * The link attention and ELS ring attention events are handled
14172 * by the worker thread. The interrupt handler signals the worker thread
14173 * and returns for these events. This function is called without any lock
14174 * held. It gets the hbalock to access and update SLI data structures.
14176 * This function returns IRQ_HANDLED when interrupt is handled else it
14177 * returns IRQ_NONE.
14180 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
14182 struct lpfc_hba *phba;
14183 struct lpfc_hba_eq_hdl *hba_eq_hdl;
14184 struct lpfc_queue *fpeq;
14185 struct lpfc_eqe *eqe;
14186 unsigned long iflag;
14190 /* Get the driver's phba structure from the dev_id */
14191 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
14192 phba = hba_eq_hdl->phba;
14193 hba_eqidx = hba_eq_hdl->idx;
14195 if (unlikely(!phba))
14197 if (unlikely(!phba->sli4_hba.hdwq))
14200 /* Get to the EQ struct associated with this vector */
14201 fpeq = phba->sli4_hba.hdwq[hba_eqidx].hba_eq;
14202 if (unlikely(!fpeq))
14205 if (lpfc_fcp_look_ahead) {
14206 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use))
14207 phba->sli4_hba.sli4_eq_clr_intr(fpeq);
14209 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14214 /* Check device state for handling interrupt */
14215 if (unlikely(lpfc_intr_state_check(phba))) {
14216 /* Check again for link_state with lock held */
14217 spin_lock_irqsave(&phba->hbalock, iflag);
14218 if (phba->link_state < LPFC_LINK_DOWN)
14219 /* Flush, clear interrupt, and rearm the EQ */
14220 lpfc_sli4_eq_flush(phba, fpeq);
14221 spin_unlock_irqrestore(&phba->hbalock, iflag);
14222 if (lpfc_fcp_look_ahead)
14223 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14228 * Process all the event on FCP fast-path EQ
14230 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
14231 lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx);
14232 if (!(++ecount % fpeq->entry_repost))
14234 fpeq->EQ_processed++;
14237 /* Track the max number of EQEs processed in 1 intr */
14238 if (ecount > fpeq->EQ_max_eqe)
14239 fpeq->EQ_max_eqe = ecount;
14241 /* Always clear and re-arm the fast-path EQ */
14242 phba->sli4_hba.sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
14244 if (unlikely(ecount == 0)) {
14245 fpeq->EQ_no_entry++;
14247 if (lpfc_fcp_look_ahead) {
14248 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14252 if (phba->intr_type == MSIX)
14253 /* MSI-X treated interrupt served as no EQ share INT */
14254 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14255 "0358 MSI-X interrupt with no EQE\n");
14257 /* Non MSI-X treated on interrupt as EQ share INT */
14261 if (lpfc_fcp_look_ahead)
14262 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14264 return IRQ_HANDLED;
14265 } /* lpfc_sli4_fp_intr_handler */
14268 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
14269 * @irq: Interrupt number.
14270 * @dev_id: The device context pointer.
14272 * This function is the device-level interrupt handler to device with SLI-4
14273 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
14274 * interrupt mode is enabled and there is an event in the HBA which requires
14275 * driver attention. This function invokes the slow-path interrupt attention
14276 * handling function and fast-path interrupt attention handling function in
14277 * turn to process the relevant HBA attention events. This function is called
14278 * without any lock held. It gets the hbalock to access and update SLI data
14281 * This function returns IRQ_HANDLED when interrupt is handled, else it
14282 * returns IRQ_NONE.
14285 lpfc_sli4_intr_handler(int irq, void *dev_id)
14287 struct lpfc_hba *phba;
14288 irqreturn_t hba_irq_rc;
14289 bool hba_handled = false;
14292 /* Get the driver's phba structure from the dev_id */
14293 phba = (struct lpfc_hba *)dev_id;
14295 if (unlikely(!phba))
14299 * Invoke fast-path host attention interrupt handling as appropriate.
14301 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
14302 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
14303 &phba->sli4_hba.hba_eq_hdl[qidx]);
14304 if (hba_irq_rc == IRQ_HANDLED)
14305 hba_handled |= true;
14308 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
14309 } /* lpfc_sli4_intr_handler */
14312 * lpfc_sli4_queue_free - free a queue structure and associated memory
14313 * @queue: The queue structure to free.
14315 * This function frees a queue structure and the DMAable memory used for
14316 * the host resident queue. This function must be called after destroying the
14317 * queue on the HBA.
14320 lpfc_sli4_queue_free(struct lpfc_queue *queue)
14322 struct lpfc_dmabuf *dmabuf;
14327 while (!list_empty(&queue->page_list)) {
14328 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
14330 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
14331 dmabuf->virt, dmabuf->phys);
14335 lpfc_free_rq_buffer(queue->phba, queue);
14336 kfree(queue->rqbp);
14339 if (!list_empty(&queue->wq_list))
14340 list_del(&queue->wq_list);
14347 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
14348 * @phba: The HBA that this queue is being created on.
14349 * @page_size: The size of a queue page
14350 * @entry_size: The size of each queue entry for this queue.
14351 * @entry count: The number of entries that this queue will handle.
14353 * This function allocates a queue structure and the DMAable memory used for
14354 * the host resident queue. This function must be called before creating the
14355 * queue on the HBA.
14357 struct lpfc_queue *
14358 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
14359 uint32_t entry_size, uint32_t entry_count)
14361 struct lpfc_queue *queue;
14362 struct lpfc_dmabuf *dmabuf;
14363 int x, total_qe_count;
14365 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14367 if (!phba->sli4_hba.pc_sli4_params.supported)
14368 hw_page_size = page_size;
14370 queue = kzalloc(sizeof(struct lpfc_queue) +
14371 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
14374 queue->page_count = (ALIGN(entry_size * entry_count,
14375 hw_page_size))/hw_page_size;
14377 /* If needed, Adjust page count to match the max the adapter supports */
14378 if (phba->sli4_hba.pc_sli4_params.wqpcnt &&
14379 (queue->page_count > phba->sli4_hba.pc_sli4_params.wqpcnt))
14380 queue->page_count = phba->sli4_hba.pc_sli4_params.wqpcnt;
14382 INIT_LIST_HEAD(&queue->list);
14383 INIT_LIST_HEAD(&queue->wq_list);
14384 INIT_LIST_HEAD(&queue->wqfull_list);
14385 INIT_LIST_HEAD(&queue->page_list);
14386 INIT_LIST_HEAD(&queue->child_list);
14388 /* Set queue parameters now. If the system cannot provide memory
14389 * resources, the free routine needs to know what was allocated.
14391 queue->entry_size = entry_size;
14392 queue->entry_count = entry_count;
14393 queue->page_size = hw_page_size;
14394 queue->phba = phba;
14396 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
14397 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
14400 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
14401 hw_page_size, &dmabuf->phys,
14403 if (!dmabuf->virt) {
14407 dmabuf->buffer_tag = x;
14408 list_add_tail(&dmabuf->list, &queue->page_list);
14409 /* initialize queue's entry array */
14410 dma_pointer = dmabuf->virt;
14411 for (; total_qe_count < entry_count &&
14412 dma_pointer < (hw_page_size + dmabuf->virt);
14413 total_qe_count++, dma_pointer += entry_size) {
14414 queue->qe[total_qe_count].address = dma_pointer;
14417 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
14418 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
14420 /* entry_repost will be set during q creation */
14424 lpfc_sli4_queue_free(queue);
14429 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
14430 * @phba: HBA structure that indicates port to create a queue on.
14431 * @pci_barset: PCI BAR set flag.
14433 * This function shall perform iomap of the specified PCI BAR address to host
14434 * memory address if not already done so and return it. The returned host
14435 * memory address can be NULL.
14437 static void __iomem *
14438 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
14443 switch (pci_barset) {
14444 case WQ_PCI_BAR_0_AND_1:
14445 return phba->pci_bar0_memmap_p;
14446 case WQ_PCI_BAR_2_AND_3:
14447 return phba->pci_bar2_memmap_p;
14448 case WQ_PCI_BAR_4_AND_5:
14449 return phba->pci_bar4_memmap_p;
14457 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on FCP EQs
14458 * @phba: HBA structure that indicates port to create a queue on.
14459 * @startq: The starting FCP EQ to modify
14461 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
14462 * The command allows up to LPFC_MAX_EQ_DELAY_EQID_CNT EQ ID's to be
14463 * updated in one mailbox command.
14465 * The @phba struct is used to send mailbox command to HBA. The @startq
14466 * is used to get the starting FCP EQ to change.
14467 * This function is asynchronous and will wait for the mailbox
14468 * command to finish before continuing.
14470 * On success this function will return a zero. If unable to allocate enough
14471 * memory this function will return -ENOMEM. If the queue create mailbox command
14472 * fails this function will return -ENXIO.
14475 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
14476 uint32_t numq, uint32_t imax)
14478 struct lpfc_mbx_modify_eq_delay *eq_delay;
14479 LPFC_MBOXQ_t *mbox;
14480 struct lpfc_queue *eq;
14481 int cnt, rc, length, status = 0;
14482 uint32_t shdr_status, shdr_add_status;
14483 uint32_t result, val;
14485 union lpfc_sli4_cfg_shdr *shdr;
14488 if (startq >= phba->cfg_hdw_queue)
14491 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14494 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
14495 sizeof(struct lpfc_sli4_cfg_mhdr));
14496 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14497 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
14498 length, LPFC_SLI4_MBX_EMBED);
14499 eq_delay = &mbox->u.mqe.un.eq_delay;
14501 /* Calculate delay multiper from maximum interrupt per second */
14502 result = imax / phba->cfg_hdw_queue;
14503 if (result > LPFC_DMULT_CONST || result == 0)
14506 dmult = LPFC_DMULT_CONST/result - 1;
14507 if (dmult > LPFC_DMULT_MAX)
14508 dmult = LPFC_DMULT_MAX;
14511 for (qidx = startq; qidx < phba->cfg_hdw_queue; qidx++) {
14512 eq = phba->sli4_hba.hdwq[qidx].hba_eq;
14516 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
14517 eq_delay->u.request.eq[cnt].phase = 0;
14518 eq_delay->u.request.eq[cnt].delay_multi = dmult;
14521 /* q_mode is only used for auto_imax */
14522 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
14523 /* Use EQ Delay Register method for q_mode */
14525 /* Convert for EQ Delay register */
14526 val = phba->cfg_fcp_imax;
14528 /* First, interrupts per sec per EQ */
14529 val = phba->cfg_fcp_imax / phba->cfg_hdw_queue;
14531 /* us delay between each interrupt */
14532 val = LPFC_SEC_TO_USEC / val;
14542 eq_delay->u.request.num_eq = cnt;
14544 mbox->vport = phba->pport;
14545 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14546 mbox->ctx_buf = NULL;
14547 mbox->ctx_ndlp = NULL;
14548 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14549 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
14550 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14551 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14552 if (shdr_status || shdr_add_status || rc) {
14553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14554 "2512 MODIFY_EQ_DELAY mailbox failed with "
14555 "status x%x add_status x%x, mbx status x%x\n",
14556 shdr_status, shdr_add_status, rc);
14559 mempool_free(mbox, phba->mbox_mem_pool);
14564 * lpfc_eq_create - Create an Event Queue on the HBA
14565 * @phba: HBA structure that indicates port to create a queue on.
14566 * @eq: The queue structure to use to create the event queue.
14567 * @imax: The maximum interrupt per second limit.
14569 * This function creates an event queue, as detailed in @eq, on a port,
14570 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
14572 * The @phba struct is used to send mailbox command to HBA. The @eq struct
14573 * is used to get the entry count and entry size that are necessary to
14574 * determine the number of pages to allocate and use for this queue. This
14575 * function will send the EQ_CREATE mailbox command to the HBA to setup the
14576 * event queue. This function is asynchronous and will wait for the mailbox
14577 * command to finish before continuing.
14579 * On success this function will return a zero. If unable to allocate enough
14580 * memory this function will return -ENOMEM. If the queue create mailbox command
14581 * fails this function will return -ENXIO.
14584 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
14586 struct lpfc_mbx_eq_create *eq_create;
14587 LPFC_MBOXQ_t *mbox;
14588 int rc, length, status = 0;
14589 struct lpfc_dmabuf *dmabuf;
14590 uint32_t shdr_status, shdr_add_status;
14591 union lpfc_sli4_cfg_shdr *shdr;
14593 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14595 /* sanity check on queue memory */
14598 if (!phba->sli4_hba.pc_sli4_params.supported)
14599 hw_page_size = SLI4_PAGE_SIZE;
14601 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14604 length = (sizeof(struct lpfc_mbx_eq_create) -
14605 sizeof(struct lpfc_sli4_cfg_mhdr));
14606 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14607 LPFC_MBOX_OPCODE_EQ_CREATE,
14608 length, LPFC_SLI4_MBX_EMBED);
14609 eq_create = &mbox->u.mqe.un.eq_create;
14610 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14611 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14613 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14615 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
14617 /* Use version 2 of CREATE_EQ if eqav is set */
14618 if (phba->sli4_hba.pc_sli4_params.eqav) {
14619 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14620 LPFC_Q_CREATE_VERSION_2);
14621 bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
14622 phba->sli4_hba.pc_sli4_params.eqav);
14625 /* don't setup delay multiplier using EQ_CREATE */
14627 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14629 switch (eq->entry_count) {
14631 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14632 "0360 Unsupported EQ count. (%d)\n",
14634 if (eq->entry_count < 256)
14636 /* otherwise default to smallest count (drop through) */
14638 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14642 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14646 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14650 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14654 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14658 list_for_each_entry(dmabuf, &eq->page_list, list) {
14659 memset(dmabuf->virt, 0, hw_page_size);
14660 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14661 putPaddrLow(dmabuf->phys);
14662 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14663 putPaddrHigh(dmabuf->phys);
14665 mbox->vport = phba->pport;
14666 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14667 mbox->ctx_buf = NULL;
14668 mbox->ctx_ndlp = NULL;
14669 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14670 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14671 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14672 if (shdr_status || shdr_add_status || rc) {
14673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14674 "2500 EQ_CREATE mailbox failed with "
14675 "status x%x add_status x%x, mbx status x%x\n",
14676 shdr_status, shdr_add_status, rc);
14679 eq->type = LPFC_EQ;
14680 eq->subtype = LPFC_NONE;
14681 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14682 if (eq->queue_id == 0xFFFF)
14684 eq->host_index = 0;
14686 eq->entry_repost = LPFC_EQ_REPOST;
14688 mempool_free(mbox, phba->mbox_mem_pool);
14693 * lpfc_cq_create - Create a Completion Queue on the HBA
14694 * @phba: HBA structure that indicates port to create a queue on.
14695 * @cq: The queue structure to use to create the completion queue.
14696 * @eq: The event queue to bind this completion queue to.
14698 * This function creates a completion queue, as detailed in @wq, on a port,
14699 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14701 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14702 * is used to get the entry count and entry size that are necessary to
14703 * determine the number of pages to allocate and use for this queue. The @eq
14704 * is used to indicate which event queue to bind this completion queue to. This
14705 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14706 * completion queue. This function is asynchronous and will wait for the mailbox
14707 * command to finish before continuing.
14709 * On success this function will return a zero. If unable to allocate enough
14710 * memory this function will return -ENOMEM. If the queue create mailbox command
14711 * fails this function will return -ENXIO.
14714 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14715 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14717 struct lpfc_mbx_cq_create *cq_create;
14718 struct lpfc_dmabuf *dmabuf;
14719 LPFC_MBOXQ_t *mbox;
14720 int rc, length, status = 0;
14721 uint32_t shdr_status, shdr_add_status;
14722 union lpfc_sli4_cfg_shdr *shdr;
14724 /* sanity check on queue memory */
14728 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14731 length = (sizeof(struct lpfc_mbx_cq_create) -
14732 sizeof(struct lpfc_sli4_cfg_mhdr));
14733 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14734 LPFC_MBOX_OPCODE_CQ_CREATE,
14735 length, LPFC_SLI4_MBX_EMBED);
14736 cq_create = &mbox->u.mqe.un.cq_create;
14737 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
14738 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14740 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14741 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
14742 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14743 phba->sli4_hba.pc_sli4_params.cqv);
14744 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
14745 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
14746 (cq->page_size / SLI4_PAGE_SIZE));
14747 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14749 bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
14750 phba->sli4_hba.pc_sli4_params.cqav);
14752 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14755 switch (cq->entry_count) {
14758 if (phba->sli4_hba.pc_sli4_params.cqv ==
14759 LPFC_Q_CREATE_VERSION_2) {
14760 cq_create->u.request.context.lpfc_cq_context_count =
14762 bf_set(lpfc_cq_context_count,
14763 &cq_create->u.request.context,
14764 LPFC_CQ_CNT_WORD7);
14769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14770 "0361 Unsupported CQ count: "
14771 "entry cnt %d sz %d pg cnt %d\n",
14772 cq->entry_count, cq->entry_size,
14774 if (cq->entry_count < 256) {
14778 /* otherwise default to smallest count (drop through) */
14780 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14784 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14788 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14792 list_for_each_entry(dmabuf, &cq->page_list, list) {
14793 memset(dmabuf->virt, 0, cq->page_size);
14794 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14795 putPaddrLow(dmabuf->phys);
14796 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14797 putPaddrHigh(dmabuf->phys);
14799 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14801 /* The IOCTL status is embedded in the mailbox subheader. */
14802 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14803 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14804 if (shdr_status || shdr_add_status || rc) {
14805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14806 "2501 CQ_CREATE mailbox failed with "
14807 "status x%x add_status x%x, mbx status x%x\n",
14808 shdr_status, shdr_add_status, rc);
14812 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14813 if (cq->queue_id == 0xFFFF) {
14817 /* link the cq onto the parent eq child list */
14818 list_add_tail(&cq->list, &eq->child_list);
14819 /* Set up completion queue's type and subtype */
14821 cq->subtype = subtype;
14822 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14823 cq->assoc_qid = eq->queue_id;
14824 cq->host_index = 0;
14826 cq->entry_repost = LPFC_CQ_REPOST;
14829 mempool_free(mbox, phba->mbox_mem_pool);
14834 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
14835 * @phba: HBA structure that indicates port to create a queue on.
14836 * @cqp: The queue structure array to use to create the completion queues.
14837 * @hdwq: The hardware queue array with the EQ to bind completion queues to.
14839 * This function creates a set of completion queue, s to support MRQ
14840 * as detailed in @cqp, on a port,
14841 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
14843 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14844 * is used to get the entry count and entry size that are necessary to
14845 * determine the number of pages to allocate and use for this queue. The @eq
14846 * is used to indicate which event queue to bind this completion queue to. This
14847 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
14848 * completion queue. This function is asynchronous and will wait for the mailbox
14849 * command to finish before continuing.
14851 * On success this function will return a zero. If unable to allocate enough
14852 * memory this function will return -ENOMEM. If the queue create mailbox command
14853 * fails this function will return -ENXIO.
14856 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
14857 struct lpfc_sli4_hdw_queue *hdwq, uint32_t type,
14860 struct lpfc_queue *cq;
14861 struct lpfc_queue *eq;
14862 struct lpfc_mbx_cq_create_set *cq_set;
14863 struct lpfc_dmabuf *dmabuf;
14864 LPFC_MBOXQ_t *mbox;
14865 int rc, length, alloclen, status = 0;
14866 int cnt, idx, numcq, page_idx = 0;
14867 uint32_t shdr_status, shdr_add_status;
14868 union lpfc_sli4_cfg_shdr *shdr;
14869 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14871 /* sanity check on queue memory */
14872 numcq = phba->cfg_nvmet_mrq;
14873 if (!cqp || !hdwq || !numcq)
14876 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14880 length = sizeof(struct lpfc_mbx_cq_create_set);
14881 length += ((numcq * cqp[0]->page_count) *
14882 sizeof(struct dma_address));
14883 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14884 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
14885 LPFC_SLI4_MBX_NEMBED);
14886 if (alloclen < length) {
14887 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14888 "3098 Allocated DMA memory size (%d) is "
14889 "less than the requested DMA memory size "
14890 "(%d)\n", alloclen, length);
14894 cq_set = mbox->sge_array->addr[0];
14895 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
14896 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
14898 for (idx = 0; idx < numcq; idx++) {
14900 eq = hdwq[idx].hba_eq;
14905 if (!phba->sli4_hba.pc_sli4_params.supported)
14906 hw_page_size = cq->page_size;
14910 bf_set(lpfc_mbx_cq_create_set_page_size,
14911 &cq_set->u.request,
14912 (hw_page_size / SLI4_PAGE_SIZE));
14913 bf_set(lpfc_mbx_cq_create_set_num_pages,
14914 &cq_set->u.request, cq->page_count);
14915 bf_set(lpfc_mbx_cq_create_set_evt,
14916 &cq_set->u.request, 1);
14917 bf_set(lpfc_mbx_cq_create_set_valid,
14918 &cq_set->u.request, 1);
14919 bf_set(lpfc_mbx_cq_create_set_cqe_size,
14920 &cq_set->u.request, 0);
14921 bf_set(lpfc_mbx_cq_create_set_num_cq,
14922 &cq_set->u.request, numcq);
14923 bf_set(lpfc_mbx_cq_create_set_autovalid,
14924 &cq_set->u.request,
14925 phba->sli4_hba.pc_sli4_params.cqav);
14926 switch (cq->entry_count) {
14929 if (phba->sli4_hba.pc_sli4_params.cqv ==
14930 LPFC_Q_CREATE_VERSION_2) {
14931 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14932 &cq_set->u.request,
14934 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14935 &cq_set->u.request,
14936 LPFC_CQ_CNT_WORD7);
14941 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14942 "3118 Bad CQ count. (%d)\n",
14944 if (cq->entry_count < 256) {
14948 /* otherwise default to smallest (drop thru) */
14950 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14951 &cq_set->u.request, LPFC_CQ_CNT_256);
14954 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14955 &cq_set->u.request, LPFC_CQ_CNT_512);
14958 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14959 &cq_set->u.request, LPFC_CQ_CNT_1024);
14962 bf_set(lpfc_mbx_cq_create_set_eq_id0,
14963 &cq_set->u.request, eq->queue_id);
14966 bf_set(lpfc_mbx_cq_create_set_eq_id1,
14967 &cq_set->u.request, eq->queue_id);
14970 bf_set(lpfc_mbx_cq_create_set_eq_id2,
14971 &cq_set->u.request, eq->queue_id);
14974 bf_set(lpfc_mbx_cq_create_set_eq_id3,
14975 &cq_set->u.request, eq->queue_id);
14978 bf_set(lpfc_mbx_cq_create_set_eq_id4,
14979 &cq_set->u.request, eq->queue_id);
14982 bf_set(lpfc_mbx_cq_create_set_eq_id5,
14983 &cq_set->u.request, eq->queue_id);
14986 bf_set(lpfc_mbx_cq_create_set_eq_id6,
14987 &cq_set->u.request, eq->queue_id);
14990 bf_set(lpfc_mbx_cq_create_set_eq_id7,
14991 &cq_set->u.request, eq->queue_id);
14994 bf_set(lpfc_mbx_cq_create_set_eq_id8,
14995 &cq_set->u.request, eq->queue_id);
14998 bf_set(lpfc_mbx_cq_create_set_eq_id9,
14999 &cq_set->u.request, eq->queue_id);
15002 bf_set(lpfc_mbx_cq_create_set_eq_id10,
15003 &cq_set->u.request, eq->queue_id);
15006 bf_set(lpfc_mbx_cq_create_set_eq_id11,
15007 &cq_set->u.request, eq->queue_id);
15010 bf_set(lpfc_mbx_cq_create_set_eq_id12,
15011 &cq_set->u.request, eq->queue_id);
15014 bf_set(lpfc_mbx_cq_create_set_eq_id13,
15015 &cq_set->u.request, eq->queue_id);
15018 bf_set(lpfc_mbx_cq_create_set_eq_id14,
15019 &cq_set->u.request, eq->queue_id);
15022 bf_set(lpfc_mbx_cq_create_set_eq_id15,
15023 &cq_set->u.request, eq->queue_id);
15027 /* link the cq onto the parent eq child list */
15028 list_add_tail(&cq->list, &eq->child_list);
15029 /* Set up completion queue's type and subtype */
15031 cq->subtype = subtype;
15032 cq->assoc_qid = eq->queue_id;
15033 cq->host_index = 0;
15035 cq->entry_repost = LPFC_CQ_REPOST;
15039 list_for_each_entry(dmabuf, &cq->page_list, list) {
15040 memset(dmabuf->virt, 0, hw_page_size);
15041 cnt = page_idx + dmabuf->buffer_tag;
15042 cq_set->u.request.page[cnt].addr_lo =
15043 putPaddrLow(dmabuf->phys);
15044 cq_set->u.request.page[cnt].addr_hi =
15045 putPaddrHigh(dmabuf->phys);
15051 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15053 /* The IOCTL status is embedded in the mailbox subheader. */
15054 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15055 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15056 if (shdr_status || shdr_add_status || rc) {
15057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15058 "3119 CQ_CREATE_SET mailbox failed with "
15059 "status x%x add_status x%x, mbx status x%x\n",
15060 shdr_status, shdr_add_status, rc);
15064 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
15065 if (rc == 0xFFFF) {
15070 for (idx = 0; idx < numcq; idx++) {
15072 cq->queue_id = rc + idx;
15076 lpfc_sli4_mbox_cmd_free(phba, mbox);
15081 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
15082 * @phba: HBA structure that indicates port to create a queue on.
15083 * @mq: The queue structure to use to create the mailbox queue.
15084 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
15085 * @cq: The completion queue to associate with this cq.
15087 * This function provides failback (fb) functionality when the
15088 * mq_create_ext fails on older FW generations. It's purpose is identical
15089 * to mq_create_ext otherwise.
15091 * This routine cannot fail as all attributes were previously accessed and
15092 * initialized in mq_create_ext.
15095 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
15096 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
15098 struct lpfc_mbx_mq_create *mq_create;
15099 struct lpfc_dmabuf *dmabuf;
15102 length = (sizeof(struct lpfc_mbx_mq_create) -
15103 sizeof(struct lpfc_sli4_cfg_mhdr));
15104 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15105 LPFC_MBOX_OPCODE_MQ_CREATE,
15106 length, LPFC_SLI4_MBX_EMBED);
15107 mq_create = &mbox->u.mqe.un.mq_create;
15108 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
15110 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
15112 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
15113 switch (mq->entry_count) {
15115 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15116 LPFC_MQ_RING_SIZE_16);
15119 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15120 LPFC_MQ_RING_SIZE_32);
15123 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15124 LPFC_MQ_RING_SIZE_64);
15127 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15128 LPFC_MQ_RING_SIZE_128);
15131 list_for_each_entry(dmabuf, &mq->page_list, list) {
15132 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15133 putPaddrLow(dmabuf->phys);
15134 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15135 putPaddrHigh(dmabuf->phys);
15140 * lpfc_mq_create - Create a mailbox Queue on the HBA
15141 * @phba: HBA structure that indicates port to create a queue on.
15142 * @mq: The queue structure to use to create the mailbox queue.
15143 * @cq: The completion queue to associate with this cq.
15144 * @subtype: The queue's subtype.
15146 * This function creates a mailbox queue, as detailed in @mq, on a port,
15147 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
15149 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15150 * is used to get the entry count and entry size that are necessary to
15151 * determine the number of pages to allocate and use for this queue. This
15152 * function will send the MQ_CREATE mailbox command to the HBA to setup the
15153 * mailbox queue. This function is asynchronous and will wait for the mailbox
15154 * command to finish before continuing.
15156 * On success this function will return a zero. If unable to allocate enough
15157 * memory this function will return -ENOMEM. If the queue create mailbox command
15158 * fails this function will return -ENXIO.
15161 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
15162 struct lpfc_queue *cq, uint32_t subtype)
15164 struct lpfc_mbx_mq_create *mq_create;
15165 struct lpfc_mbx_mq_create_ext *mq_create_ext;
15166 struct lpfc_dmabuf *dmabuf;
15167 LPFC_MBOXQ_t *mbox;
15168 int rc, length, status = 0;
15169 uint32_t shdr_status, shdr_add_status;
15170 union lpfc_sli4_cfg_shdr *shdr;
15171 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15173 /* sanity check on queue memory */
15176 if (!phba->sli4_hba.pc_sli4_params.supported)
15177 hw_page_size = SLI4_PAGE_SIZE;
15179 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15182 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
15183 sizeof(struct lpfc_sli4_cfg_mhdr));
15184 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15185 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
15186 length, LPFC_SLI4_MBX_EMBED);
15188 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
15189 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
15190 bf_set(lpfc_mbx_mq_create_ext_num_pages,
15191 &mq_create_ext->u.request, mq->page_count);
15192 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
15193 &mq_create_ext->u.request, 1);
15194 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
15195 &mq_create_ext->u.request, 1);
15196 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
15197 &mq_create_ext->u.request, 1);
15198 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
15199 &mq_create_ext->u.request, 1);
15200 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
15201 &mq_create_ext->u.request, 1);
15202 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
15203 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15204 phba->sli4_hba.pc_sli4_params.mqv);
15205 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
15206 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
15209 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
15211 switch (mq->entry_count) {
15213 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15214 "0362 Unsupported MQ count. (%d)\n",
15216 if (mq->entry_count < 16) {
15220 /* otherwise default to smallest count (drop through) */
15222 bf_set(lpfc_mq_context_ring_size,
15223 &mq_create_ext->u.request.context,
15224 LPFC_MQ_RING_SIZE_16);
15227 bf_set(lpfc_mq_context_ring_size,
15228 &mq_create_ext->u.request.context,
15229 LPFC_MQ_RING_SIZE_32);
15232 bf_set(lpfc_mq_context_ring_size,
15233 &mq_create_ext->u.request.context,
15234 LPFC_MQ_RING_SIZE_64);
15237 bf_set(lpfc_mq_context_ring_size,
15238 &mq_create_ext->u.request.context,
15239 LPFC_MQ_RING_SIZE_128);
15242 list_for_each_entry(dmabuf, &mq->page_list, list) {
15243 memset(dmabuf->virt, 0, hw_page_size);
15244 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
15245 putPaddrLow(dmabuf->phys);
15246 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
15247 putPaddrHigh(dmabuf->phys);
15249 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15250 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15251 &mq_create_ext->u.response);
15252 if (rc != MBX_SUCCESS) {
15253 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15254 "2795 MQ_CREATE_EXT failed with "
15255 "status x%x. Failback to MQ_CREATE.\n",
15257 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
15258 mq_create = &mbox->u.mqe.un.mq_create;
15259 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15260 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
15261 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15262 &mq_create->u.response);
15265 /* The IOCTL status is embedded in the mailbox subheader. */
15266 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15267 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15268 if (shdr_status || shdr_add_status || rc) {
15269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15270 "2502 MQ_CREATE mailbox failed with "
15271 "status x%x add_status x%x, mbx status x%x\n",
15272 shdr_status, shdr_add_status, rc);
15276 if (mq->queue_id == 0xFFFF) {
15280 mq->type = LPFC_MQ;
15281 mq->assoc_qid = cq->queue_id;
15282 mq->subtype = subtype;
15283 mq->host_index = 0;
15285 mq->entry_repost = LPFC_MQ_REPOST;
15287 /* link the mq onto the parent cq child list */
15288 list_add_tail(&mq->list, &cq->child_list);
15290 mempool_free(mbox, phba->mbox_mem_pool);
15295 * lpfc_wq_create - Create a Work Queue on the HBA
15296 * @phba: HBA structure that indicates port to create a queue on.
15297 * @wq: The queue structure to use to create the work queue.
15298 * @cq: The completion queue to bind this work queue to.
15299 * @subtype: The subtype of the work queue indicating its functionality.
15301 * This function creates a work queue, as detailed in @wq, on a port, described
15302 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
15304 * The @phba struct is used to send mailbox command to HBA. The @wq struct
15305 * is used to get the entry count and entry size that are necessary to
15306 * determine the number of pages to allocate and use for this queue. The @cq
15307 * is used to indicate which completion queue to bind this work queue to. This
15308 * function will send the WQ_CREATE mailbox command to the HBA to setup the
15309 * work queue. This function is asynchronous and will wait for the mailbox
15310 * command to finish before continuing.
15312 * On success this function will return a zero. If unable to allocate enough
15313 * memory this function will return -ENOMEM. If the queue create mailbox command
15314 * fails this function will return -ENXIO.
15317 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
15318 struct lpfc_queue *cq, uint32_t subtype)
15320 struct lpfc_mbx_wq_create *wq_create;
15321 struct lpfc_dmabuf *dmabuf;
15322 LPFC_MBOXQ_t *mbox;
15323 int rc, length, status = 0;
15324 uint32_t shdr_status, shdr_add_status;
15325 union lpfc_sli4_cfg_shdr *shdr;
15326 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15327 struct dma_address *page;
15328 void __iomem *bar_memmap_p;
15329 uint32_t db_offset;
15330 uint16_t pci_barset;
15331 uint8_t dpp_barset;
15332 uint32_t dpp_offset;
15333 unsigned long pg_addr;
15334 uint8_t wq_create_version;
15336 /* sanity check on queue memory */
15339 if (!phba->sli4_hba.pc_sli4_params.supported)
15340 hw_page_size = wq->page_size;
15342 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15345 length = (sizeof(struct lpfc_mbx_wq_create) -
15346 sizeof(struct lpfc_sli4_cfg_mhdr));
15347 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15348 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
15349 length, LPFC_SLI4_MBX_EMBED);
15350 wq_create = &mbox->u.mqe.un.wq_create;
15351 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
15352 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
15354 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
15357 /* wqv is the earliest version supported, NOT the latest */
15358 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15359 phba->sli4_hba.pc_sli4_params.wqv);
15361 if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
15362 (wq->page_size > SLI4_PAGE_SIZE))
15363 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15365 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15368 if (phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT)
15369 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15371 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15373 switch (wq_create_version) {
15374 case LPFC_Q_CREATE_VERSION_1:
15375 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
15377 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15378 LPFC_Q_CREATE_VERSION_1);
15380 switch (wq->entry_size) {
15383 bf_set(lpfc_mbx_wq_create_wqe_size,
15384 &wq_create->u.request_1,
15385 LPFC_WQ_WQE_SIZE_64);
15388 bf_set(lpfc_mbx_wq_create_wqe_size,
15389 &wq_create->u.request_1,
15390 LPFC_WQ_WQE_SIZE_128);
15393 /* Request DPP by default */
15394 bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
15395 bf_set(lpfc_mbx_wq_create_page_size,
15396 &wq_create->u.request_1,
15397 (wq->page_size / SLI4_PAGE_SIZE));
15398 page = wq_create->u.request_1.page;
15401 page = wq_create->u.request.page;
15405 list_for_each_entry(dmabuf, &wq->page_list, list) {
15406 memset(dmabuf->virt, 0, hw_page_size);
15407 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
15408 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
15411 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15412 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
15414 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15415 /* The IOCTL status is embedded in the mailbox subheader. */
15416 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15417 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15418 if (shdr_status || shdr_add_status || rc) {
15419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15420 "2503 WQ_CREATE mailbox failed with "
15421 "status x%x add_status x%x, mbx status x%x\n",
15422 shdr_status, shdr_add_status, rc);
15427 if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
15428 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
15429 &wq_create->u.response);
15431 wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
15432 &wq_create->u.response_1);
15434 if (wq->queue_id == 0xFFFF) {
15439 wq->db_format = LPFC_DB_LIST_FORMAT;
15440 if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
15441 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15442 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
15443 &wq_create->u.response);
15444 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
15445 (wq->db_format != LPFC_DB_RING_FORMAT)) {
15446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15447 "3265 WQ[%d] doorbell format "
15448 "not supported: x%x\n",
15449 wq->queue_id, wq->db_format);
15453 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
15454 &wq_create->u.response);
15455 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15457 if (!bar_memmap_p) {
15458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15459 "3263 WQ[%d] failed to memmap "
15460 "pci barset:x%x\n",
15461 wq->queue_id, pci_barset);
15465 db_offset = wq_create->u.response.doorbell_offset;
15466 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
15467 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
15468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15469 "3252 WQ[%d] doorbell offset "
15470 "not supported: x%x\n",
15471 wq->queue_id, db_offset);
15475 wq->db_regaddr = bar_memmap_p + db_offset;
15476 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15477 "3264 WQ[%d]: barset:x%x, offset:x%x, "
15478 "format:x%x\n", wq->queue_id,
15479 pci_barset, db_offset, wq->db_format);
15481 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15483 /* Check if DPP was honored by the firmware */
15484 wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
15485 &wq_create->u.response_1);
15486 if (wq->dpp_enable) {
15487 pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
15488 &wq_create->u.response_1);
15489 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15491 if (!bar_memmap_p) {
15492 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15493 "3267 WQ[%d] failed to memmap "
15494 "pci barset:x%x\n",
15495 wq->queue_id, pci_barset);
15499 db_offset = wq_create->u.response_1.doorbell_offset;
15500 wq->db_regaddr = bar_memmap_p + db_offset;
15501 wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
15502 &wq_create->u.response_1);
15503 dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
15504 &wq_create->u.response_1);
15505 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15507 if (!bar_memmap_p) {
15508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15509 "3268 WQ[%d] failed to memmap "
15510 "pci barset:x%x\n",
15511 wq->queue_id, dpp_barset);
15515 dpp_offset = wq_create->u.response_1.dpp_offset;
15516 wq->dpp_regaddr = bar_memmap_p + dpp_offset;
15517 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15518 "3271 WQ[%d]: barset:x%x, offset:x%x, "
15519 "dpp_id:x%x dpp_barset:x%x "
15520 "dpp_offset:x%x\n",
15521 wq->queue_id, pci_barset, db_offset,
15522 wq->dpp_id, dpp_barset, dpp_offset);
15524 /* Enable combined writes for DPP aperture */
15525 pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
15527 rc = set_memory_wc(pg_addr, 1);
15529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15530 "3272 Cannot setup Combined "
15531 "Write on WQ[%d] - disable DPP\n",
15533 phba->cfg_enable_dpp = 0;
15536 phba->cfg_enable_dpp = 0;
15539 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15541 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
15542 if (wq->pring == NULL) {
15546 wq->type = LPFC_WQ;
15547 wq->assoc_qid = cq->queue_id;
15548 wq->subtype = subtype;
15549 wq->host_index = 0;
15551 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
15553 /* link the wq onto the parent cq child list */
15554 list_add_tail(&wq->list, &cq->child_list);
15556 mempool_free(mbox, phba->mbox_mem_pool);
15561 * lpfc_rq_create - Create a Receive Queue on the HBA
15562 * @phba: HBA structure that indicates port to create a queue on.
15563 * @hrq: The queue structure to use to create the header receive queue.
15564 * @drq: The queue structure to use to create the data receive queue.
15565 * @cq: The completion queue to bind this work queue to.
15567 * This function creates a receive buffer queue pair , as detailed in @hrq and
15568 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15571 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15572 * struct is used to get the entry count that is necessary to determine the
15573 * number of pages to use for this queue. The @cq is used to indicate which
15574 * completion queue to bind received buffers that are posted to these queues to.
15575 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15576 * receive queue pair. This function is asynchronous and will wait for the
15577 * mailbox command to finish before continuing.
15579 * On success this function will return a zero. If unable to allocate enough
15580 * memory this function will return -ENOMEM. If the queue create mailbox command
15581 * fails this function will return -ENXIO.
15584 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15585 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
15587 struct lpfc_mbx_rq_create *rq_create;
15588 struct lpfc_dmabuf *dmabuf;
15589 LPFC_MBOXQ_t *mbox;
15590 int rc, length, status = 0;
15591 uint32_t shdr_status, shdr_add_status;
15592 union lpfc_sli4_cfg_shdr *shdr;
15593 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15594 void __iomem *bar_memmap_p;
15595 uint32_t db_offset;
15596 uint16_t pci_barset;
15598 /* sanity check on queue memory */
15599 if (!hrq || !drq || !cq)
15601 if (!phba->sli4_hba.pc_sli4_params.supported)
15602 hw_page_size = SLI4_PAGE_SIZE;
15604 if (hrq->entry_count != drq->entry_count)
15606 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15609 length = (sizeof(struct lpfc_mbx_rq_create) -
15610 sizeof(struct lpfc_sli4_cfg_mhdr));
15611 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15612 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15613 length, LPFC_SLI4_MBX_EMBED);
15614 rq_create = &mbox->u.mqe.un.rq_create;
15615 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15616 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15617 phba->sli4_hba.pc_sli4_params.rqv);
15618 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15619 bf_set(lpfc_rq_context_rqe_count_1,
15620 &rq_create->u.request.context,
15622 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
15623 bf_set(lpfc_rq_context_rqe_size,
15624 &rq_create->u.request.context,
15626 bf_set(lpfc_rq_context_page_size,
15627 &rq_create->u.request.context,
15628 LPFC_RQ_PAGE_SIZE_4096);
15630 switch (hrq->entry_count) {
15632 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15633 "2535 Unsupported RQ count. (%d)\n",
15635 if (hrq->entry_count < 512) {
15639 /* otherwise default to smallest count (drop through) */
15641 bf_set(lpfc_rq_context_rqe_count,
15642 &rq_create->u.request.context,
15643 LPFC_RQ_RING_SIZE_512);
15646 bf_set(lpfc_rq_context_rqe_count,
15647 &rq_create->u.request.context,
15648 LPFC_RQ_RING_SIZE_1024);
15651 bf_set(lpfc_rq_context_rqe_count,
15652 &rq_create->u.request.context,
15653 LPFC_RQ_RING_SIZE_2048);
15656 bf_set(lpfc_rq_context_rqe_count,
15657 &rq_create->u.request.context,
15658 LPFC_RQ_RING_SIZE_4096);
15661 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15662 LPFC_HDR_BUF_SIZE);
15664 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15666 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15668 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15669 memset(dmabuf->virt, 0, hw_page_size);
15670 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15671 putPaddrLow(dmabuf->phys);
15672 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15673 putPaddrHigh(dmabuf->phys);
15675 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15676 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15678 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15679 /* The IOCTL status is embedded in the mailbox subheader. */
15680 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15681 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15682 if (shdr_status || shdr_add_status || rc) {
15683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15684 "2504 RQ_CREATE mailbox failed with "
15685 "status x%x add_status x%x, mbx status x%x\n",
15686 shdr_status, shdr_add_status, rc);
15690 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15691 if (hrq->queue_id == 0xFFFF) {
15696 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15697 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15698 &rq_create->u.response);
15699 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15700 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15702 "3262 RQ [%d] doorbell format not "
15703 "supported: x%x\n", hrq->queue_id,
15709 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15710 &rq_create->u.response);
15711 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15712 if (!bar_memmap_p) {
15713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15714 "3269 RQ[%d] failed to memmap pci "
15715 "barset:x%x\n", hrq->queue_id,
15721 db_offset = rq_create->u.response.doorbell_offset;
15722 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15723 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15725 "3270 RQ[%d] doorbell offset not "
15726 "supported: x%x\n", hrq->queue_id,
15731 hrq->db_regaddr = bar_memmap_p + db_offset;
15732 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15733 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15734 "format:x%x\n", hrq->queue_id, pci_barset,
15735 db_offset, hrq->db_format);
15737 hrq->db_format = LPFC_DB_RING_FORMAT;
15738 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15740 hrq->type = LPFC_HRQ;
15741 hrq->assoc_qid = cq->queue_id;
15742 hrq->subtype = subtype;
15743 hrq->host_index = 0;
15744 hrq->hba_index = 0;
15745 hrq->entry_repost = LPFC_RQ_REPOST;
15747 /* now create the data queue */
15748 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15749 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15750 length, LPFC_SLI4_MBX_EMBED);
15751 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15752 phba->sli4_hba.pc_sli4_params.rqv);
15753 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15754 bf_set(lpfc_rq_context_rqe_count_1,
15755 &rq_create->u.request.context, hrq->entry_count);
15756 if (subtype == LPFC_NVMET)
15757 rq_create->u.request.context.buffer_size =
15758 LPFC_NVMET_DATA_BUF_SIZE;
15760 rq_create->u.request.context.buffer_size =
15761 LPFC_DATA_BUF_SIZE;
15762 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
15764 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
15765 (PAGE_SIZE/SLI4_PAGE_SIZE));
15767 switch (drq->entry_count) {
15769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15770 "2536 Unsupported RQ count. (%d)\n",
15772 if (drq->entry_count < 512) {
15776 /* otherwise default to smallest count (drop through) */
15778 bf_set(lpfc_rq_context_rqe_count,
15779 &rq_create->u.request.context,
15780 LPFC_RQ_RING_SIZE_512);
15783 bf_set(lpfc_rq_context_rqe_count,
15784 &rq_create->u.request.context,
15785 LPFC_RQ_RING_SIZE_1024);
15788 bf_set(lpfc_rq_context_rqe_count,
15789 &rq_create->u.request.context,
15790 LPFC_RQ_RING_SIZE_2048);
15793 bf_set(lpfc_rq_context_rqe_count,
15794 &rq_create->u.request.context,
15795 LPFC_RQ_RING_SIZE_4096);
15798 if (subtype == LPFC_NVMET)
15799 bf_set(lpfc_rq_context_buf_size,
15800 &rq_create->u.request.context,
15801 LPFC_NVMET_DATA_BUF_SIZE);
15803 bf_set(lpfc_rq_context_buf_size,
15804 &rq_create->u.request.context,
15805 LPFC_DATA_BUF_SIZE);
15807 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15809 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15811 list_for_each_entry(dmabuf, &drq->page_list, list) {
15812 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15813 putPaddrLow(dmabuf->phys);
15814 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15815 putPaddrHigh(dmabuf->phys);
15817 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15818 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15819 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15820 /* The IOCTL status is embedded in the mailbox subheader. */
15821 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15822 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15823 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15824 if (shdr_status || shdr_add_status || rc) {
15828 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15829 if (drq->queue_id == 0xFFFF) {
15833 drq->type = LPFC_DRQ;
15834 drq->assoc_qid = cq->queue_id;
15835 drq->subtype = subtype;
15836 drq->host_index = 0;
15837 drq->hba_index = 0;
15838 drq->entry_repost = LPFC_RQ_REPOST;
15840 /* link the header and data RQs onto the parent cq child list */
15841 list_add_tail(&hrq->list, &cq->child_list);
15842 list_add_tail(&drq->list, &cq->child_list);
15845 mempool_free(mbox, phba->mbox_mem_pool);
15850 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
15851 * @phba: HBA structure that indicates port to create a queue on.
15852 * @hrqp: The queue structure array to use to create the header receive queues.
15853 * @drqp: The queue structure array to use to create the data receive queues.
15854 * @cqp: The completion queue array to bind these receive queues to.
15856 * This function creates a receive buffer queue pair , as detailed in @hrq and
15857 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15860 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15861 * struct is used to get the entry count that is necessary to determine the
15862 * number of pages to use for this queue. The @cq is used to indicate which
15863 * completion queue to bind received buffers that are posted to these queues to.
15864 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15865 * receive queue pair. This function is asynchronous and will wait for the
15866 * mailbox command to finish before continuing.
15868 * On success this function will return a zero. If unable to allocate enough
15869 * memory this function will return -ENOMEM. If the queue create mailbox command
15870 * fails this function will return -ENXIO.
15873 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
15874 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
15877 struct lpfc_queue *hrq, *drq, *cq;
15878 struct lpfc_mbx_rq_create_v2 *rq_create;
15879 struct lpfc_dmabuf *dmabuf;
15880 LPFC_MBOXQ_t *mbox;
15881 int rc, length, alloclen, status = 0;
15882 int cnt, idx, numrq, page_idx = 0;
15883 uint32_t shdr_status, shdr_add_status;
15884 union lpfc_sli4_cfg_shdr *shdr;
15885 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15887 numrq = phba->cfg_nvmet_mrq;
15888 /* sanity check on array memory */
15889 if (!hrqp || !drqp || !cqp || !numrq)
15891 if (!phba->sli4_hba.pc_sli4_params.supported)
15892 hw_page_size = SLI4_PAGE_SIZE;
15894 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15898 length = sizeof(struct lpfc_mbx_rq_create_v2);
15899 length += ((2 * numrq * hrqp[0]->page_count) *
15900 sizeof(struct dma_address));
15902 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15903 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
15904 LPFC_SLI4_MBX_NEMBED);
15905 if (alloclen < length) {
15906 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15907 "3099 Allocated DMA memory size (%d) is "
15908 "less than the requested DMA memory size "
15909 "(%d)\n", alloclen, length);
15916 rq_create = mbox->sge_array->addr[0];
15917 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
15919 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
15922 for (idx = 0; idx < numrq; idx++) {
15927 /* sanity check on queue memory */
15928 if (!hrq || !drq || !cq) {
15933 if (hrq->entry_count != drq->entry_count) {
15939 bf_set(lpfc_mbx_rq_create_num_pages,
15940 &rq_create->u.request,
15942 bf_set(lpfc_mbx_rq_create_rq_cnt,
15943 &rq_create->u.request, (numrq * 2));
15944 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
15946 bf_set(lpfc_rq_context_base_cq,
15947 &rq_create->u.request.context,
15949 bf_set(lpfc_rq_context_data_size,
15950 &rq_create->u.request.context,
15951 LPFC_NVMET_DATA_BUF_SIZE);
15952 bf_set(lpfc_rq_context_hdr_size,
15953 &rq_create->u.request.context,
15954 LPFC_HDR_BUF_SIZE);
15955 bf_set(lpfc_rq_context_rqe_count_1,
15956 &rq_create->u.request.context,
15958 bf_set(lpfc_rq_context_rqe_size,
15959 &rq_create->u.request.context,
15961 bf_set(lpfc_rq_context_page_size,
15962 &rq_create->u.request.context,
15963 (PAGE_SIZE/SLI4_PAGE_SIZE));
15966 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15967 memset(dmabuf->virt, 0, hw_page_size);
15968 cnt = page_idx + dmabuf->buffer_tag;
15969 rq_create->u.request.page[cnt].addr_lo =
15970 putPaddrLow(dmabuf->phys);
15971 rq_create->u.request.page[cnt].addr_hi =
15972 putPaddrHigh(dmabuf->phys);
15978 list_for_each_entry(dmabuf, &drq->page_list, list) {
15979 memset(dmabuf->virt, 0, hw_page_size);
15980 cnt = page_idx + dmabuf->buffer_tag;
15981 rq_create->u.request.page[cnt].addr_lo =
15982 putPaddrLow(dmabuf->phys);
15983 rq_create->u.request.page[cnt].addr_hi =
15984 putPaddrHigh(dmabuf->phys);
15989 hrq->db_format = LPFC_DB_RING_FORMAT;
15990 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15991 hrq->type = LPFC_HRQ;
15992 hrq->assoc_qid = cq->queue_id;
15993 hrq->subtype = subtype;
15994 hrq->host_index = 0;
15995 hrq->hba_index = 0;
15996 hrq->entry_repost = LPFC_RQ_REPOST;
15998 drq->db_format = LPFC_DB_RING_FORMAT;
15999 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16000 drq->type = LPFC_DRQ;
16001 drq->assoc_qid = cq->queue_id;
16002 drq->subtype = subtype;
16003 drq->host_index = 0;
16004 drq->hba_index = 0;
16005 drq->entry_repost = LPFC_RQ_REPOST;
16007 list_add_tail(&hrq->list, &cq->child_list);
16008 list_add_tail(&drq->list, &cq->child_list);
16011 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16012 /* The IOCTL status is embedded in the mailbox subheader. */
16013 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16014 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16015 if (shdr_status || shdr_add_status || rc) {
16016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16017 "3120 RQ_CREATE mailbox failed with "
16018 "status x%x add_status x%x, mbx status x%x\n",
16019 shdr_status, shdr_add_status, rc);
16023 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16024 if (rc == 0xFFFF) {
16029 /* Initialize all RQs with associated queue id */
16030 for (idx = 0; idx < numrq; idx++) {
16032 hrq->queue_id = rc + (2 * idx);
16034 drq->queue_id = rc + (2 * idx) + 1;
16038 lpfc_sli4_mbox_cmd_free(phba, mbox);
16043 * lpfc_eq_destroy - Destroy an event Queue on the HBA
16044 * @eq: The queue structure associated with the queue to destroy.
16046 * This function destroys a queue, as detailed in @eq by sending an mailbox
16047 * command, specific to the type of queue, to the HBA.
16049 * The @eq struct is used to get the queue ID of the queue to destroy.
16051 * On success this function will return a zero. If the queue destroy mailbox
16052 * command fails this function will return -ENXIO.
16055 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
16057 LPFC_MBOXQ_t *mbox;
16058 int rc, length, status = 0;
16059 uint32_t shdr_status, shdr_add_status;
16060 union lpfc_sli4_cfg_shdr *shdr;
16062 /* sanity check on queue memory */
16065 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
16068 length = (sizeof(struct lpfc_mbx_eq_destroy) -
16069 sizeof(struct lpfc_sli4_cfg_mhdr));
16070 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16071 LPFC_MBOX_OPCODE_EQ_DESTROY,
16072 length, LPFC_SLI4_MBX_EMBED);
16073 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
16075 mbox->vport = eq->phba->pport;
16076 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16078 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
16079 /* The IOCTL status is embedded in the mailbox subheader. */
16080 shdr = (union lpfc_sli4_cfg_shdr *)
16081 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
16082 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16083 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16084 if (shdr_status || shdr_add_status || rc) {
16085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16086 "2505 EQ_DESTROY mailbox failed with "
16087 "status x%x add_status x%x, mbx status x%x\n",
16088 shdr_status, shdr_add_status, rc);
16092 /* Remove eq from any list */
16093 list_del_init(&eq->list);
16094 mempool_free(mbox, eq->phba->mbox_mem_pool);
16099 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
16100 * @cq: The queue structure associated with the queue to destroy.
16102 * This function destroys a queue, as detailed in @cq by sending an mailbox
16103 * command, specific to the type of queue, to the HBA.
16105 * The @cq struct is used to get the queue ID of the queue to destroy.
16107 * On success this function will return a zero. If the queue destroy mailbox
16108 * command fails this function will return -ENXIO.
16111 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
16113 LPFC_MBOXQ_t *mbox;
16114 int rc, length, status = 0;
16115 uint32_t shdr_status, shdr_add_status;
16116 union lpfc_sli4_cfg_shdr *shdr;
16118 /* sanity check on queue memory */
16121 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
16124 length = (sizeof(struct lpfc_mbx_cq_destroy) -
16125 sizeof(struct lpfc_sli4_cfg_mhdr));
16126 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16127 LPFC_MBOX_OPCODE_CQ_DESTROY,
16128 length, LPFC_SLI4_MBX_EMBED);
16129 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
16131 mbox->vport = cq->phba->pport;
16132 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16133 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
16134 /* The IOCTL status is embedded in the mailbox subheader. */
16135 shdr = (union lpfc_sli4_cfg_shdr *)
16136 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
16137 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16138 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16139 if (shdr_status || shdr_add_status || rc) {
16140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16141 "2506 CQ_DESTROY mailbox failed with "
16142 "status x%x add_status x%x, mbx status x%x\n",
16143 shdr_status, shdr_add_status, rc);
16146 /* Remove cq from any list */
16147 list_del_init(&cq->list);
16148 mempool_free(mbox, cq->phba->mbox_mem_pool);
16153 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
16154 * @qm: The queue structure associated with the queue to destroy.
16156 * This function destroys a queue, as detailed in @mq by sending an mailbox
16157 * command, specific to the type of queue, to the HBA.
16159 * The @mq struct is used to get the queue ID of the queue to destroy.
16161 * On success this function will return a zero. If the queue destroy mailbox
16162 * command fails this function will return -ENXIO.
16165 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
16167 LPFC_MBOXQ_t *mbox;
16168 int rc, length, status = 0;
16169 uint32_t shdr_status, shdr_add_status;
16170 union lpfc_sli4_cfg_shdr *shdr;
16172 /* sanity check on queue memory */
16175 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
16178 length = (sizeof(struct lpfc_mbx_mq_destroy) -
16179 sizeof(struct lpfc_sli4_cfg_mhdr));
16180 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16181 LPFC_MBOX_OPCODE_MQ_DESTROY,
16182 length, LPFC_SLI4_MBX_EMBED);
16183 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
16185 mbox->vport = mq->phba->pport;
16186 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16187 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
16188 /* The IOCTL status is embedded in the mailbox subheader. */
16189 shdr = (union lpfc_sli4_cfg_shdr *)
16190 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
16191 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16192 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16193 if (shdr_status || shdr_add_status || rc) {
16194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16195 "2507 MQ_DESTROY mailbox failed with "
16196 "status x%x add_status x%x, mbx status x%x\n",
16197 shdr_status, shdr_add_status, rc);
16200 /* Remove mq from any list */
16201 list_del_init(&mq->list);
16202 mempool_free(mbox, mq->phba->mbox_mem_pool);
16207 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
16208 * @wq: The queue structure associated with the queue to destroy.
16210 * This function destroys a queue, as detailed in @wq by sending an mailbox
16211 * command, specific to the type of queue, to the HBA.
16213 * The @wq struct is used to get the queue ID of the queue to destroy.
16215 * On success this function will return a zero. If the queue destroy mailbox
16216 * command fails this function will return -ENXIO.
16219 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
16221 LPFC_MBOXQ_t *mbox;
16222 int rc, length, status = 0;
16223 uint32_t shdr_status, shdr_add_status;
16224 union lpfc_sli4_cfg_shdr *shdr;
16226 /* sanity check on queue memory */
16229 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
16232 length = (sizeof(struct lpfc_mbx_wq_destroy) -
16233 sizeof(struct lpfc_sli4_cfg_mhdr));
16234 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16235 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
16236 length, LPFC_SLI4_MBX_EMBED);
16237 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
16239 mbox->vport = wq->phba->pport;
16240 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16241 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
16242 shdr = (union lpfc_sli4_cfg_shdr *)
16243 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
16244 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16245 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16246 if (shdr_status || shdr_add_status || rc) {
16247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16248 "2508 WQ_DESTROY mailbox failed with "
16249 "status x%x add_status x%x, mbx status x%x\n",
16250 shdr_status, shdr_add_status, rc);
16253 /* Remove wq from any list */
16254 list_del_init(&wq->list);
16257 mempool_free(mbox, wq->phba->mbox_mem_pool);
16262 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
16263 * @rq: The queue structure associated with the queue to destroy.
16265 * This function destroys a queue, as detailed in @rq by sending an mailbox
16266 * command, specific to the type of queue, to the HBA.
16268 * The @rq struct is used to get the queue ID of the queue to destroy.
16270 * On success this function will return a zero. If the queue destroy mailbox
16271 * command fails this function will return -ENXIO.
16274 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
16275 struct lpfc_queue *drq)
16277 LPFC_MBOXQ_t *mbox;
16278 int rc, length, status = 0;
16279 uint32_t shdr_status, shdr_add_status;
16280 union lpfc_sli4_cfg_shdr *shdr;
16282 /* sanity check on queue memory */
16285 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
16288 length = (sizeof(struct lpfc_mbx_rq_destroy) -
16289 sizeof(struct lpfc_sli4_cfg_mhdr));
16290 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16291 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
16292 length, LPFC_SLI4_MBX_EMBED);
16293 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16295 mbox->vport = hrq->phba->pport;
16296 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16297 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
16298 /* The IOCTL status is embedded in the mailbox subheader. */
16299 shdr = (union lpfc_sli4_cfg_shdr *)
16300 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16301 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16302 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16303 if (shdr_status || shdr_add_status || rc) {
16304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16305 "2509 RQ_DESTROY mailbox failed with "
16306 "status x%x add_status x%x, mbx status x%x\n",
16307 shdr_status, shdr_add_status, rc);
16308 if (rc != MBX_TIMEOUT)
16309 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16312 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16314 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
16315 shdr = (union lpfc_sli4_cfg_shdr *)
16316 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16317 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16318 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16319 if (shdr_status || shdr_add_status || rc) {
16320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16321 "2510 RQ_DESTROY mailbox failed with "
16322 "status x%x add_status x%x, mbx status x%x\n",
16323 shdr_status, shdr_add_status, rc);
16326 list_del_init(&hrq->list);
16327 list_del_init(&drq->list);
16328 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16333 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
16334 * @phba: The virtual port for which this call being executed.
16335 * @pdma_phys_addr0: Physical address of the 1st SGL page.
16336 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
16337 * @xritag: the xritag that ties this io to the SGL pages.
16339 * This routine will post the sgl pages for the IO that has the xritag
16340 * that is in the iocbq structure. The xritag is assigned during iocbq
16341 * creation and persists for as long as the driver is loaded.
16342 * if the caller has fewer than 256 scatter gather segments to map then
16343 * pdma_phys_addr1 should be 0.
16344 * If the caller needs to map more than 256 scatter gather segment then
16345 * pdma_phys_addr1 should be a valid physical address.
16346 * physical address for SGLs must be 64 byte aligned.
16347 * If you are going to map 2 SGL's then the first one must have 256 entries
16348 * the second sgl can have between 1 and 256 entries.
16352 * -ENXIO, -ENOMEM - Failure
16355 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
16356 dma_addr_t pdma_phys_addr0,
16357 dma_addr_t pdma_phys_addr1,
16360 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
16361 LPFC_MBOXQ_t *mbox;
16363 uint32_t shdr_status, shdr_add_status;
16365 union lpfc_sli4_cfg_shdr *shdr;
16367 if (xritag == NO_XRI) {
16368 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16369 "0364 Invalid param:\n");
16373 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16377 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16378 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16379 sizeof(struct lpfc_mbx_post_sgl_pages) -
16380 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16382 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
16383 &mbox->u.mqe.un.post_sgl_pages;
16384 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
16385 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
16387 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
16388 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
16389 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
16390 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
16392 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
16393 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
16394 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
16395 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
16396 if (!phba->sli4_hba.intr_enable)
16397 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16399 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16400 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16402 /* The IOCTL status is embedded in the mailbox subheader. */
16403 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
16404 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16405 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16406 if (rc != MBX_TIMEOUT)
16407 mempool_free(mbox, phba->mbox_mem_pool);
16408 if (shdr_status || shdr_add_status || rc) {
16409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16410 "2511 POST_SGL mailbox failed with "
16411 "status x%x add_status x%x, mbx status x%x\n",
16412 shdr_status, shdr_add_status, rc);
16418 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
16419 * @phba: pointer to lpfc hba data structure.
16421 * This routine is invoked to post rpi header templates to the
16422 * HBA consistent with the SLI-4 interface spec. This routine
16423 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
16424 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
16427 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
16428 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
16431 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
16436 * Fetch the next logical xri. Because this index is logical,
16437 * the driver starts at 0 each time.
16439 spin_lock_irq(&phba->hbalock);
16440 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
16441 phba->sli4_hba.max_cfg_param.max_xri, 0);
16442 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
16443 spin_unlock_irq(&phba->hbalock);
16446 set_bit(xri, phba->sli4_hba.xri_bmask);
16447 phba->sli4_hba.max_cfg_param.xri_used++;
16449 spin_unlock_irq(&phba->hbalock);
16454 * lpfc_sli4_free_xri - Release an xri for reuse.
16455 * @phba: pointer to lpfc hba data structure.
16457 * This routine is invoked to release an xri to the pool of
16458 * available rpis maintained by the driver.
16461 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16463 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
16464 phba->sli4_hba.max_cfg_param.xri_used--;
16469 * lpfc_sli4_free_xri - Release an xri for reuse.
16470 * @phba: pointer to lpfc hba data structure.
16472 * This routine is invoked to release an xri to the pool of
16473 * available rpis maintained by the driver.
16476 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16478 spin_lock_irq(&phba->hbalock);
16479 __lpfc_sli4_free_xri(phba, xri);
16480 spin_unlock_irq(&phba->hbalock);
16484 * lpfc_sli4_next_xritag - Get an xritag for the io
16485 * @phba: Pointer to HBA context object.
16487 * This function gets an xritag for the iocb. If there is no unused xritag
16488 * it will return 0xffff.
16489 * The function returns the allocated xritag if successful, else returns zero.
16490 * Zero is not a valid xritag.
16491 * The caller is not required to hold any lock.
16494 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
16496 uint16_t xri_index;
16498 xri_index = lpfc_sli4_alloc_xri(phba);
16499 if (xri_index == NO_XRI)
16500 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
16501 "2004 Failed to allocate XRI.last XRITAG is %d"
16502 " Max XRI is %d, Used XRI is %d\n",
16504 phba->sli4_hba.max_cfg_param.max_xri,
16505 phba->sli4_hba.max_cfg_param.xri_used);
16510 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
16511 * @phba: pointer to lpfc hba data structure.
16512 * @post_sgl_list: pointer to els sgl entry list.
16513 * @count: number of els sgl entries on the list.
16515 * This routine is invoked to post a block of driver's sgl pages to the
16516 * HBA using non-embedded mailbox command. No Lock is held. This routine
16517 * is only called when the driver is loading and after all IO has been
16521 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
16522 struct list_head *post_sgl_list,
16525 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
16526 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16527 struct sgl_page_pairs *sgl_pg_pairs;
16529 LPFC_MBOXQ_t *mbox;
16530 uint32_t reqlen, alloclen, pg_pairs;
16532 uint16_t xritag_start = 0;
16534 uint32_t shdr_status, shdr_add_status;
16535 union lpfc_sli4_cfg_shdr *shdr;
16537 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
16538 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16539 if (reqlen > SLI4_PAGE_SIZE) {
16540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16541 "2559 Block sgl registration required DMA "
16542 "size (%d) great than a page\n", reqlen);
16546 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16550 /* Allocate DMA memory and set up the non-embedded mailbox command */
16551 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16552 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16553 LPFC_SLI4_MBX_NEMBED);
16555 if (alloclen < reqlen) {
16556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16557 "0285 Allocated DMA memory size (%d) is "
16558 "less than the requested DMA memory "
16559 "size (%d)\n", alloclen, reqlen);
16560 lpfc_sli4_mbox_cmd_free(phba, mbox);
16563 /* Set up the SGL pages in the non-embedded DMA pages */
16564 viraddr = mbox->sge_array->addr[0];
16565 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16566 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16569 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
16570 /* Set up the sge entry */
16571 sgl_pg_pairs->sgl_pg0_addr_lo =
16572 cpu_to_le32(putPaddrLow(sglq_entry->phys));
16573 sgl_pg_pairs->sgl_pg0_addr_hi =
16574 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
16575 sgl_pg_pairs->sgl_pg1_addr_lo =
16576 cpu_to_le32(putPaddrLow(0));
16577 sgl_pg_pairs->sgl_pg1_addr_hi =
16578 cpu_to_le32(putPaddrHigh(0));
16580 /* Keep the first xritag on the list */
16582 xritag_start = sglq_entry->sli4_xritag;
16587 /* Complete initialization and perform endian conversion. */
16588 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16589 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
16590 sgl->word0 = cpu_to_le32(sgl->word0);
16592 if (!phba->sli4_hba.intr_enable)
16593 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16595 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16596 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16598 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16599 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16600 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16601 if (rc != MBX_TIMEOUT)
16602 lpfc_sli4_mbox_cmd_free(phba, mbox);
16603 if (shdr_status || shdr_add_status || rc) {
16604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16605 "2513 POST_SGL_BLOCK mailbox command failed "
16606 "status x%x add_status x%x mbx status x%x\n",
16607 shdr_status, shdr_add_status, rc);
16614 * lpfc_sli4_post_io_sgl_block - post a block of nvme sgl list to firmware
16615 * @phba: pointer to lpfc hba data structure.
16616 * @nblist: pointer to nvme buffer list.
16617 * @count: number of scsi buffers on the list.
16619 * This routine is invoked to post a block of @count scsi sgl pages from a
16620 * SCSI buffer list @nblist to the HBA using non-embedded mailbox command.
16625 lpfc_sli4_post_io_sgl_block(struct lpfc_hba *phba, struct list_head *nblist,
16628 struct lpfc_nvme_buf *lpfc_ncmd;
16629 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16630 struct sgl_page_pairs *sgl_pg_pairs;
16632 LPFC_MBOXQ_t *mbox;
16633 uint32_t reqlen, alloclen, pg_pairs;
16635 uint16_t xritag_start = 0;
16637 uint32_t shdr_status, shdr_add_status;
16638 dma_addr_t pdma_phys_bpl1;
16639 union lpfc_sli4_cfg_shdr *shdr;
16641 /* Calculate the requested length of the dma memory */
16642 reqlen = count * sizeof(struct sgl_page_pairs) +
16643 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16644 if (reqlen > SLI4_PAGE_SIZE) {
16645 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
16646 "6118 Block sgl registration required DMA "
16647 "size (%d) great than a page\n", reqlen);
16650 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16653 "6119 Failed to allocate mbox cmd memory\n");
16657 /* Allocate DMA memory and set up the non-embedded mailbox command */
16658 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16659 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16660 reqlen, LPFC_SLI4_MBX_NEMBED);
16662 if (alloclen < reqlen) {
16663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16664 "6120 Allocated DMA memory size (%d) is "
16665 "less than the requested DMA memory "
16666 "size (%d)\n", alloclen, reqlen);
16667 lpfc_sli4_mbox_cmd_free(phba, mbox);
16671 /* Get the first SGE entry from the non-embedded DMA memory */
16672 viraddr = mbox->sge_array->addr[0];
16674 /* Set up the SGL pages in the non-embedded DMA pages */
16675 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16676 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16679 list_for_each_entry(lpfc_ncmd, nblist, list) {
16680 /* Set up the sge entry */
16681 sgl_pg_pairs->sgl_pg0_addr_lo =
16682 cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl));
16683 sgl_pg_pairs->sgl_pg0_addr_hi =
16684 cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl));
16685 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
16686 pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl +
16689 pdma_phys_bpl1 = 0;
16690 sgl_pg_pairs->sgl_pg1_addr_lo =
16691 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
16692 sgl_pg_pairs->sgl_pg1_addr_hi =
16693 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16694 /* Keep the first xritag on the list */
16696 xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag;
16700 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16701 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16702 /* Perform endian conversion if necessary */
16703 sgl->word0 = cpu_to_le32(sgl->word0);
16705 if (!phba->sli4_hba.intr_enable) {
16706 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16708 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16709 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16711 shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr;
16712 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16713 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16714 if (rc != MBX_TIMEOUT)
16715 lpfc_sli4_mbox_cmd_free(phba, mbox);
16716 if (shdr_status || shdr_add_status || rc) {
16717 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16718 "6125 POST_SGL_BLOCK mailbox command failed "
16719 "status x%x add_status x%x mbx status x%x\n",
16720 shdr_status, shdr_add_status, rc);
16727 * lpfc_sli4_post_io_sgl_list - Post blocks of nvme buffer sgls from a list
16728 * @phba: pointer to lpfc hba data structure.
16729 * @post_nblist: pointer to the nvme buffer list.
16731 * This routine walks a list of nvme buffers that was passed in. It attempts
16732 * to construct blocks of nvme buffer sgls which contains contiguous xris and
16733 * uses the non-embedded SGL block post mailbox commands to post to the port.
16734 * For single NVME buffer sgl with non-contiguous xri, if any, it shall use
16735 * embedded SGL post mailbox command for posting. The @post_nblist passed in
16736 * must be local list, thus no lock is needed when manipulate the list.
16738 * Returns: 0 = failure, non-zero number of successfully posted buffers.
16741 lpfc_sli4_post_io_sgl_list(struct lpfc_hba *phba,
16742 struct list_head *post_nblist, int sb_count)
16744 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
16745 int status, sgl_size;
16746 int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0;
16747 dma_addr_t pdma_phys_sgl1;
16748 int last_xritag = NO_XRI;
16750 LIST_HEAD(prep_nblist);
16751 LIST_HEAD(blck_nblist);
16752 LIST_HEAD(nvme_nblist);
16758 sgl_size = phba->cfg_sg_dma_buf_size;
16759 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) {
16760 list_del_init(&lpfc_ncmd->list);
16762 if ((last_xritag != NO_XRI) &&
16763 (lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) {
16764 /* a hole in xri block, form a sgl posting block */
16765 list_splice_init(&prep_nblist, &blck_nblist);
16766 post_cnt = block_cnt - 1;
16767 /* prepare list for next posting block */
16768 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
16771 /* prepare list for next posting block */
16772 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
16773 /* enough sgls for non-embed sgl mbox command */
16774 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
16775 list_splice_init(&prep_nblist, &blck_nblist);
16776 post_cnt = block_cnt;
16781 last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
16783 /* end of repost sgl list condition for NVME buffers */
16784 if (num_posting == sb_count) {
16785 if (post_cnt == 0) {
16786 /* last sgl posting block */
16787 list_splice_init(&prep_nblist, &blck_nblist);
16788 post_cnt = block_cnt;
16789 } else if (block_cnt == 1) {
16790 /* last single sgl with non-contiguous xri */
16791 if (sgl_size > SGL_PAGE_SIZE)
16793 lpfc_ncmd->dma_phys_sgl +
16796 pdma_phys_sgl1 = 0;
16797 cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
16798 status = lpfc_sli4_post_sgl(
16799 phba, lpfc_ncmd->dma_phys_sgl,
16800 pdma_phys_sgl1, cur_xritag);
16802 /* failure, put on abort nvme list */
16803 lpfc_ncmd->flags |= LPFC_SBUF_XBUSY;
16805 /* success, put on NVME buffer list */
16806 lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY;
16807 lpfc_ncmd->status = IOSTAT_SUCCESS;
16810 /* success, put on NVME buffer sgl list */
16811 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
16815 /* continue until a nembed page worth of sgls */
16819 /* post block of NVME buffer list sgls */
16820 status = lpfc_sli4_post_io_sgl_block(phba, &blck_nblist,
16823 /* don't reset xirtag due to hole in xri block */
16824 if (block_cnt == 0)
16825 last_xritag = NO_XRI;
16827 /* reset NVME buffer post count for next round of posting */
16830 /* put posted NVME buffer-sgl posted on NVME buffer sgl list */
16831 while (!list_empty(&blck_nblist)) {
16832 list_remove_head(&blck_nblist, lpfc_ncmd,
16833 struct lpfc_nvme_buf, list);
16835 /* failure, put on abort nvme list */
16836 lpfc_ncmd->flags |= LPFC_SBUF_XBUSY;
16838 /* success, put on NVME buffer list */
16839 lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY;
16840 lpfc_ncmd->status = IOSTAT_SUCCESS;
16843 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
16846 /* Push NVME buffers with sgl posted to the available list */
16847 lpfc_io_buf_replenish(phba, &nvme_nblist);
16853 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
16854 * @phba: pointer to lpfc_hba struct that the frame was received on
16855 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16857 * This function checks the fields in the @fc_hdr to see if the FC frame is a
16858 * valid type of frame that the LPFC driver will handle. This function will
16859 * return a zero if the frame is a valid frame or a non zero value when the
16860 * frame does not pass the check.
16863 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
16865 /* make rctl_names static to save stack space */
16866 struct fc_vft_header *fc_vft_hdr;
16867 uint32_t *header = (uint32_t *) fc_hdr;
16869 switch (fc_hdr->fh_r_ctl) {
16870 case FC_RCTL_DD_UNCAT: /* uncategorized information */
16871 case FC_RCTL_DD_SOL_DATA: /* solicited data */
16872 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
16873 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
16874 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
16875 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
16876 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
16877 case FC_RCTL_DD_CMD_STATUS: /* command status */
16878 case FC_RCTL_ELS_REQ: /* extended link services request */
16879 case FC_RCTL_ELS_REP: /* extended link services reply */
16880 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
16881 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
16882 case FC_RCTL_BA_NOP: /* basic link service NOP */
16883 case FC_RCTL_BA_ABTS: /* basic link service abort */
16884 case FC_RCTL_BA_RMC: /* remove connection */
16885 case FC_RCTL_BA_ACC: /* basic accept */
16886 case FC_RCTL_BA_RJT: /* basic reject */
16887 case FC_RCTL_BA_PRMT:
16888 case FC_RCTL_ACK_1: /* acknowledge_1 */
16889 case FC_RCTL_ACK_0: /* acknowledge_0 */
16890 case FC_RCTL_P_RJT: /* port reject */
16891 case FC_RCTL_F_RJT: /* fabric reject */
16892 case FC_RCTL_P_BSY: /* port busy */
16893 case FC_RCTL_F_BSY: /* fabric busy to data frame */
16894 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
16895 case FC_RCTL_LCR: /* link credit reset */
16896 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
16897 case FC_RCTL_END: /* end */
16899 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
16900 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16901 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
16902 return lpfc_fc_frame_check(phba, fc_hdr);
16907 switch (fc_hdr->fh_type) {
16920 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
16921 "2538 Received frame rctl:x%x, type:x%x, "
16922 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
16923 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
16924 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
16925 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
16926 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
16927 be32_to_cpu(header[6]));
16930 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
16931 "2539 Dropped frame rctl:x%x type:x%x\n",
16932 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
16937 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
16938 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16940 * This function processes the FC header to retrieve the VFI from the VF
16941 * header, if one exists. This function will return the VFI if one exists
16942 * or 0 if no VSAN Header exists.
16945 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
16947 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16949 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
16951 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
16955 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
16956 * @phba: Pointer to the HBA structure to search for the vport on
16957 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16958 * @fcfi: The FC Fabric ID that the frame came from
16960 * This function searches the @phba for a vport that matches the content of the
16961 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
16962 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
16963 * returns the matching vport pointer or NULL if unable to match frame to a
16966 static struct lpfc_vport *
16967 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
16968 uint16_t fcfi, uint32_t did)
16970 struct lpfc_vport **vports;
16971 struct lpfc_vport *vport = NULL;
16974 if (did == Fabric_DID)
16975 return phba->pport;
16976 if ((phba->pport->fc_flag & FC_PT2PT) &&
16977 !(phba->link_state == LPFC_HBA_READY))
16978 return phba->pport;
16980 vports = lpfc_create_vport_work_array(phba);
16981 if (vports != NULL) {
16982 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
16983 if (phba->fcf.fcfi == fcfi &&
16984 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
16985 vports[i]->fc_myDID == did) {
16991 lpfc_destroy_vport_work_array(phba, vports);
16996 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
16997 * @vport: The vport to work on.
16999 * This function updates the receive sequence time stamp for this vport. The
17000 * receive sequence time stamp indicates the time that the last frame of the
17001 * the sequence that has been idle for the longest amount of time was received.
17002 * the driver uses this time stamp to indicate if any received sequences have
17006 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
17008 struct lpfc_dmabuf *h_buf;
17009 struct hbq_dmabuf *dmabuf = NULL;
17011 /* get the oldest sequence on the rcv list */
17012 h_buf = list_get_first(&vport->rcv_buffer_list,
17013 struct lpfc_dmabuf, list);
17016 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17017 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
17021 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
17022 * @vport: The vport that the received sequences were sent to.
17024 * This function cleans up all outstanding received sequences. This is called
17025 * by the driver when a link event or user action invalidates all the received
17029 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
17031 struct lpfc_dmabuf *h_buf, *hnext;
17032 struct lpfc_dmabuf *d_buf, *dnext;
17033 struct hbq_dmabuf *dmabuf = NULL;
17035 /* start with the oldest sequence on the rcv list */
17036 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17037 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17038 list_del_init(&dmabuf->hbuf.list);
17039 list_for_each_entry_safe(d_buf, dnext,
17040 &dmabuf->dbuf.list, list) {
17041 list_del_init(&d_buf->list);
17042 lpfc_in_buf_free(vport->phba, d_buf);
17044 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17049 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
17050 * @vport: The vport that the received sequences were sent to.
17052 * This function determines whether any received sequences have timed out by
17053 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
17054 * indicates that there is at least one timed out sequence this routine will
17055 * go through the received sequences one at a time from most inactive to most
17056 * active to determine which ones need to be cleaned up. Once it has determined
17057 * that a sequence needs to be cleaned up it will simply free up the resources
17058 * without sending an abort.
17061 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
17063 struct lpfc_dmabuf *h_buf, *hnext;
17064 struct lpfc_dmabuf *d_buf, *dnext;
17065 struct hbq_dmabuf *dmabuf = NULL;
17066 unsigned long timeout;
17067 int abort_count = 0;
17069 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17070 vport->rcv_buffer_time_stamp);
17071 if (list_empty(&vport->rcv_buffer_list) ||
17072 time_before(jiffies, timeout))
17074 /* start with the oldest sequence on the rcv list */
17075 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17076 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17077 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17078 dmabuf->time_stamp);
17079 if (time_before(jiffies, timeout))
17082 list_del_init(&dmabuf->hbuf.list);
17083 list_for_each_entry_safe(d_buf, dnext,
17084 &dmabuf->dbuf.list, list) {
17085 list_del_init(&d_buf->list);
17086 lpfc_in_buf_free(vport->phba, d_buf);
17088 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17091 lpfc_update_rcv_time_stamp(vport);
17095 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
17096 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
17098 * This function searches through the existing incomplete sequences that have
17099 * been sent to this @vport. If the frame matches one of the incomplete
17100 * sequences then the dbuf in the @dmabuf is added to the list of frames that
17101 * make up that sequence. If no sequence is found that matches this frame then
17102 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
17103 * This function returns a pointer to the first dmabuf in the sequence list that
17104 * the frame was linked to.
17106 static struct hbq_dmabuf *
17107 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17109 struct fc_frame_header *new_hdr;
17110 struct fc_frame_header *temp_hdr;
17111 struct lpfc_dmabuf *d_buf;
17112 struct lpfc_dmabuf *h_buf;
17113 struct hbq_dmabuf *seq_dmabuf = NULL;
17114 struct hbq_dmabuf *temp_dmabuf = NULL;
17117 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17118 dmabuf->time_stamp = jiffies;
17119 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17121 /* Use the hdr_buf to find the sequence that this frame belongs to */
17122 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17123 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17124 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17125 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17126 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17128 /* found a pending sequence that matches this frame */
17129 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17134 * This indicates first frame received for this sequence.
17135 * Queue the buffer on the vport's rcv_buffer_list.
17137 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17138 lpfc_update_rcv_time_stamp(vport);
17141 temp_hdr = seq_dmabuf->hbuf.virt;
17142 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
17143 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17144 list_del_init(&seq_dmabuf->hbuf.list);
17145 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17146 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17147 lpfc_update_rcv_time_stamp(vport);
17150 /* move this sequence to the tail to indicate a young sequence */
17151 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
17152 seq_dmabuf->time_stamp = jiffies;
17153 lpfc_update_rcv_time_stamp(vport);
17154 if (list_empty(&seq_dmabuf->dbuf.list)) {
17155 temp_hdr = dmabuf->hbuf.virt;
17156 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17159 /* find the correct place in the sequence to insert this frame */
17160 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
17162 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17163 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
17165 * If the frame's sequence count is greater than the frame on
17166 * the list then insert the frame right after this frame
17168 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
17169 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17170 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
17175 if (&d_buf->list == &seq_dmabuf->dbuf.list)
17177 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
17186 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
17187 * @vport: pointer to a vitural port
17188 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17190 * This function tries to abort from the partially assembed sequence, described
17191 * by the information from basic abbort @dmabuf. It checks to see whether such
17192 * partially assembled sequence held by the driver. If so, it shall free up all
17193 * the frames from the partially assembled sequence.
17196 * true -- if there is matching partially assembled sequence present and all
17197 * the frames freed with the sequence;
17198 * false -- if there is no matching partially assembled sequence present so
17199 * nothing got aborted in the lower layer driver
17202 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
17203 struct hbq_dmabuf *dmabuf)
17205 struct fc_frame_header *new_hdr;
17206 struct fc_frame_header *temp_hdr;
17207 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
17208 struct hbq_dmabuf *seq_dmabuf = NULL;
17210 /* Use the hdr_buf to find the sequence that matches this frame */
17211 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17212 INIT_LIST_HEAD(&dmabuf->hbuf.list);
17213 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17214 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17215 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17216 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17217 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17218 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17220 /* found a pending sequence that matches this frame */
17221 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17225 /* Free up all the frames from the partially assembled sequence */
17227 list_for_each_entry_safe(d_buf, n_buf,
17228 &seq_dmabuf->dbuf.list, list) {
17229 list_del_init(&d_buf->list);
17230 lpfc_in_buf_free(vport->phba, d_buf);
17238 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
17239 * @vport: pointer to a vitural port
17240 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17242 * This function tries to abort from the assembed sequence from upper level
17243 * protocol, described by the information from basic abbort @dmabuf. It
17244 * checks to see whether such pending context exists at upper level protocol.
17245 * If so, it shall clean up the pending context.
17248 * true -- if there is matching pending context of the sequence cleaned
17250 * false -- if there is no matching pending context of the sequence present
17254 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17256 struct lpfc_hba *phba = vport->phba;
17259 /* Accepting abort at ulp with SLI4 only */
17260 if (phba->sli_rev < LPFC_SLI_REV4)
17263 /* Register all caring upper level protocols to attend abort */
17264 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
17272 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
17273 * @phba: Pointer to HBA context object.
17274 * @cmd_iocbq: pointer to the command iocbq structure.
17275 * @rsp_iocbq: pointer to the response iocbq structure.
17277 * This function handles the sequence abort response iocb command complete
17278 * event. It properly releases the memory allocated to the sequence abort
17282 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
17283 struct lpfc_iocbq *cmd_iocbq,
17284 struct lpfc_iocbq *rsp_iocbq)
17286 struct lpfc_nodelist *ndlp;
17289 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
17290 lpfc_nlp_put(ndlp);
17291 lpfc_nlp_not_used(ndlp);
17292 lpfc_sli_release_iocbq(phba, cmd_iocbq);
17295 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
17296 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
17297 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17298 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
17299 rsp_iocbq->iocb.ulpStatus,
17300 rsp_iocbq->iocb.un.ulpWord[4]);
17304 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
17305 * @phba: Pointer to HBA context object.
17306 * @xri: xri id in transaction.
17308 * This function validates the xri maps to the known range of XRIs allocated an
17309 * used by the driver.
17312 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
17317 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
17318 if (xri == phba->sli4_hba.xri_ids[i])
17325 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
17326 * @phba: Pointer to HBA context object.
17327 * @fc_hdr: pointer to a FC frame header.
17329 * This function sends a basic response to a previous unsol sequence abort
17330 * event after aborting the sequence handling.
17333 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
17334 struct fc_frame_header *fc_hdr, bool aborted)
17336 struct lpfc_hba *phba = vport->phba;
17337 struct lpfc_iocbq *ctiocb = NULL;
17338 struct lpfc_nodelist *ndlp;
17339 uint16_t oxid, rxid, xri, lxri;
17340 uint32_t sid, fctl;
17344 if (!lpfc_is_link_up(phba))
17347 sid = sli4_sid_from_fc_hdr(fc_hdr);
17348 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
17349 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
17351 ndlp = lpfc_findnode_did(vport, sid);
17353 ndlp = lpfc_nlp_init(vport, sid);
17355 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17356 "1268 Failed to allocate ndlp for "
17357 "oxid:x%x SID:x%x\n", oxid, sid);
17360 /* Put ndlp onto pport node list */
17361 lpfc_enqueue_node(vport, ndlp);
17362 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
17363 /* re-setup ndlp without removing from node list */
17364 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
17366 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17367 "3275 Failed to active ndlp found "
17368 "for oxid:x%x SID:x%x\n", oxid, sid);
17373 /* Allocate buffer for rsp iocb */
17374 ctiocb = lpfc_sli_get_iocbq(phba);
17378 /* Extract the F_CTL field from FC_HDR */
17379 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
17381 icmd = &ctiocb->iocb;
17382 icmd->un.xseq64.bdl.bdeSize = 0;
17383 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
17384 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
17385 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
17386 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
17388 /* Fill in the rest of iocb fields */
17389 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
17390 icmd->ulpBdeCount = 0;
17392 icmd->ulpClass = CLASS3;
17393 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
17394 ctiocb->context1 = lpfc_nlp_get(ndlp);
17396 ctiocb->iocb_cmpl = NULL;
17397 ctiocb->vport = phba->pport;
17398 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
17399 ctiocb->sli4_lxritag = NO_XRI;
17400 ctiocb->sli4_xritag = NO_XRI;
17402 if (fctl & FC_FC_EX_CTX)
17403 /* Exchange responder sent the abort so we
17409 lxri = lpfc_sli4_xri_inrange(phba, xri);
17410 if (lxri != NO_XRI)
17411 lpfc_set_rrq_active(phba, ndlp, lxri,
17412 (xri == oxid) ? rxid : oxid, 0);
17413 /* For BA_ABTS from exchange responder, if the logical xri with
17414 * the oxid maps to the FCP XRI range, the port no longer has
17415 * that exchange context, send a BLS_RJT. Override the IOCB for
17418 if ((fctl & FC_FC_EX_CTX) &&
17419 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
17420 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17421 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17422 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17423 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17426 /* If BA_ABTS failed to abort a partially assembled receive sequence,
17427 * the driver no longer has that exchange, send a BLS_RJT. Override
17428 * the IOCB for a BA_RJT.
17430 if (aborted == false) {
17431 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17432 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17433 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17434 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17437 if (fctl & FC_FC_EX_CTX) {
17438 /* ABTS sent by responder to CT exchange, construction
17439 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
17440 * field and RX_ID from ABTS for RX_ID field.
17442 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
17444 /* ABTS sent by initiator to CT exchange, construction
17445 * of BA_ACC will need to allocate a new XRI as for the
17448 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
17450 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
17451 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
17453 /* Xmit CT abts response on exchange <xid> */
17454 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
17455 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
17456 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
17458 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
17459 if (rc == IOCB_ERROR) {
17460 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
17461 "2925 Failed to issue CT ABTS RSP x%x on "
17462 "xri x%x, Data x%x\n",
17463 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
17465 lpfc_nlp_put(ndlp);
17466 ctiocb->context1 = NULL;
17467 lpfc_sli_release_iocbq(phba, ctiocb);
17472 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
17473 * @vport: Pointer to the vport on which this sequence was received
17474 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17476 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
17477 * receive sequence is only partially assembed by the driver, it shall abort
17478 * the partially assembled frames for the sequence. Otherwise, if the
17479 * unsolicited receive sequence has been completely assembled and passed to
17480 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
17481 * unsolicited sequence has been aborted. After that, it will issue a basic
17482 * accept to accept the abort.
17485 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
17486 struct hbq_dmabuf *dmabuf)
17488 struct lpfc_hba *phba = vport->phba;
17489 struct fc_frame_header fc_hdr;
17493 /* Make a copy of fc_hdr before the dmabuf being released */
17494 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
17495 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
17497 if (fctl & FC_FC_EX_CTX) {
17498 /* ABTS by responder to exchange, no cleanup needed */
17501 /* ABTS by initiator to exchange, need to do cleanup */
17502 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
17503 if (aborted == false)
17504 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
17506 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17508 if (phba->nvmet_support) {
17509 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
17513 /* Respond with BA_ACC or BA_RJT accordingly */
17514 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
17518 * lpfc_seq_complete - Indicates if a sequence is complete
17519 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17521 * This function checks the sequence, starting with the frame described by
17522 * @dmabuf, to see if all the frames associated with this sequence are present.
17523 * the frames associated with this sequence are linked to the @dmabuf using the
17524 * dbuf list. This function looks for two major things. 1) That the first frame
17525 * has a sequence count of zero. 2) There is a frame with last frame of sequence
17526 * set. 3) That there are no holes in the sequence count. The function will
17527 * return 1 when the sequence is complete, otherwise it will return 0.
17530 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
17532 struct fc_frame_header *hdr;
17533 struct lpfc_dmabuf *d_buf;
17534 struct hbq_dmabuf *seq_dmabuf;
17538 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17539 /* make sure first fame of sequence has a sequence count of zero */
17540 if (hdr->fh_seq_cnt != seq_count)
17542 fctl = (hdr->fh_f_ctl[0] << 16 |
17543 hdr->fh_f_ctl[1] << 8 |
17545 /* If last frame of sequence we can return success. */
17546 if (fctl & FC_FC_END_SEQ)
17548 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
17549 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17550 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17551 /* If there is a hole in the sequence count then fail. */
17552 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
17554 fctl = (hdr->fh_f_ctl[0] << 16 |
17555 hdr->fh_f_ctl[1] << 8 |
17557 /* If last frame of sequence we can return success. */
17558 if (fctl & FC_FC_END_SEQ)
17565 * lpfc_prep_seq - Prep sequence for ULP processing
17566 * @vport: Pointer to the vport on which this sequence was received
17567 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17569 * This function takes a sequence, described by a list of frames, and creates
17570 * a list of iocbq structures to describe the sequence. This iocbq list will be
17571 * used to issue to the generic unsolicited sequence handler. This routine
17572 * returns a pointer to the first iocbq in the list. If the function is unable
17573 * to allocate an iocbq then it throw out the received frames that were not
17574 * able to be described and return a pointer to the first iocbq. If unable to
17575 * allocate any iocbqs (including the first) this function will return NULL.
17577 static struct lpfc_iocbq *
17578 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
17580 struct hbq_dmabuf *hbq_buf;
17581 struct lpfc_dmabuf *d_buf, *n_buf;
17582 struct lpfc_iocbq *first_iocbq, *iocbq;
17583 struct fc_frame_header *fc_hdr;
17585 uint32_t len, tot_len;
17586 struct ulp_bde64 *pbde;
17588 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17589 /* remove from receive buffer list */
17590 list_del_init(&seq_dmabuf->hbuf.list);
17591 lpfc_update_rcv_time_stamp(vport);
17592 /* get the Remote Port's SID */
17593 sid = sli4_sid_from_fc_hdr(fc_hdr);
17595 /* Get an iocbq struct to fill in. */
17596 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
17598 /* Initialize the first IOCB. */
17599 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
17600 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
17601 first_iocbq->vport = vport;
17603 /* Check FC Header to see what TYPE of frame we are rcv'ing */
17604 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
17605 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
17606 first_iocbq->iocb.un.rcvels.parmRo =
17607 sli4_did_from_fc_hdr(fc_hdr);
17608 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
17610 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
17611 first_iocbq->iocb.ulpContext = NO_XRI;
17612 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
17613 be16_to_cpu(fc_hdr->fh_ox_id);
17614 /* iocbq is prepped for internal consumption. Physical vpi. */
17615 first_iocbq->iocb.unsli3.rcvsli3.vpi =
17616 vport->phba->vpi_ids[vport->vpi];
17617 /* put the first buffer into the first IOCBq */
17618 tot_len = bf_get(lpfc_rcqe_length,
17619 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
17621 first_iocbq->context2 = &seq_dmabuf->dbuf;
17622 first_iocbq->context3 = NULL;
17623 first_iocbq->iocb.ulpBdeCount = 1;
17624 if (tot_len > LPFC_DATA_BUF_SIZE)
17625 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17626 LPFC_DATA_BUF_SIZE;
17628 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
17630 first_iocbq->iocb.un.rcvels.remoteID = sid;
17632 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17634 iocbq = first_iocbq;
17636 * Each IOCBq can have two Buffers assigned, so go through the list
17637 * of buffers for this sequence and save two buffers in each IOCBq
17639 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
17641 lpfc_in_buf_free(vport->phba, d_buf);
17644 if (!iocbq->context3) {
17645 iocbq->context3 = d_buf;
17646 iocbq->iocb.ulpBdeCount++;
17647 /* We need to get the size out of the right CQE */
17648 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17649 len = bf_get(lpfc_rcqe_length,
17650 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17651 pbde = (struct ulp_bde64 *)
17652 &iocbq->iocb.unsli3.sli3Words[4];
17653 if (len > LPFC_DATA_BUF_SIZE)
17654 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
17656 pbde->tus.f.bdeSize = len;
17658 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
17661 iocbq = lpfc_sli_get_iocbq(vport->phba);
17664 first_iocbq->iocb.ulpStatus =
17665 IOSTAT_FCP_RSP_ERROR;
17666 first_iocbq->iocb.un.ulpWord[4] =
17667 IOERR_NO_RESOURCES;
17669 lpfc_in_buf_free(vport->phba, d_buf);
17672 /* We need to get the size out of the right CQE */
17673 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17674 len = bf_get(lpfc_rcqe_length,
17675 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17676 iocbq->context2 = d_buf;
17677 iocbq->context3 = NULL;
17678 iocbq->iocb.ulpBdeCount = 1;
17679 if (len > LPFC_DATA_BUF_SIZE)
17680 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17681 LPFC_DATA_BUF_SIZE;
17683 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
17686 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17688 iocbq->iocb.un.rcvels.remoteID = sid;
17689 list_add_tail(&iocbq->list, &first_iocbq->list);
17692 return first_iocbq;
17696 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
17697 struct hbq_dmabuf *seq_dmabuf)
17699 struct fc_frame_header *fc_hdr;
17700 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
17701 struct lpfc_hba *phba = vport->phba;
17703 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17704 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
17706 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17707 "2707 Ring %d handler: Failed to allocate "
17708 "iocb Rctl x%x Type x%x received\n",
17710 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17713 if (!lpfc_complete_unsol_iocb(phba,
17714 phba->sli4_hba.els_wq->pring,
17715 iocbq, fc_hdr->fh_r_ctl,
17717 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17718 "2540 Ring %d handler: unexpected Rctl "
17719 "x%x Type x%x received\n",
17721 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17723 /* Free iocb created in lpfc_prep_seq */
17724 list_for_each_entry_safe(curr_iocb, next_iocb,
17725 &iocbq->list, list) {
17726 list_del_init(&curr_iocb->list);
17727 lpfc_sli_release_iocbq(phba, curr_iocb);
17729 lpfc_sli_release_iocbq(phba, iocbq);
17733 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
17734 struct lpfc_iocbq *rspiocb)
17736 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
17738 if (pcmd && pcmd->virt)
17739 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17741 lpfc_sli_release_iocbq(phba, cmdiocb);
17742 lpfc_drain_txq(phba);
17746 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
17747 struct hbq_dmabuf *dmabuf)
17749 struct fc_frame_header *fc_hdr;
17750 struct lpfc_hba *phba = vport->phba;
17751 struct lpfc_iocbq *iocbq = NULL;
17752 union lpfc_wqe *wqe;
17753 struct lpfc_dmabuf *pcmd = NULL;
17754 uint32_t frame_len;
17756 unsigned long iflags;
17758 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17759 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
17761 /* Send the received frame back */
17762 iocbq = lpfc_sli_get_iocbq(phba);
17764 /* Queue cq event and wakeup worker thread to process it */
17765 spin_lock_irqsave(&phba->hbalock, iflags);
17766 list_add_tail(&dmabuf->cq_event.list,
17767 &phba->sli4_hba.sp_queue_event);
17768 phba->hba_flag |= HBA_SP_QUEUE_EVT;
17769 spin_unlock_irqrestore(&phba->hbalock, iflags);
17770 lpfc_worker_wake_up(phba);
17774 /* Allocate buffer for command payload */
17775 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
17777 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
17779 if (!pcmd || !pcmd->virt)
17782 INIT_LIST_HEAD(&pcmd->list);
17784 /* copyin the payload */
17785 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
17787 /* fill in BDE's for command */
17788 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
17789 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
17790 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
17791 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
17793 iocbq->context2 = pcmd;
17794 iocbq->vport = vport;
17795 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
17796 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
17799 * Setup rest of the iocb as though it were a WQE
17800 * Build the SEND_FRAME WQE
17802 wqe = (union lpfc_wqe *)&iocbq->iocb;
17804 wqe->send_frame.frame_len = frame_len;
17805 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
17806 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
17807 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
17808 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
17809 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
17810 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
17812 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
17813 iocbq->iocb.ulpLe = 1;
17814 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
17815 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
17816 if (rc == IOCB_ERROR)
17819 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17823 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
17824 "2023 Unable to process MDS loopback frame\n");
17825 if (pcmd && pcmd->virt)
17826 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17829 lpfc_sli_release_iocbq(phba, iocbq);
17830 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17834 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
17835 * @phba: Pointer to HBA context object.
17837 * This function is called with no lock held. This function processes all
17838 * the received buffers and gives it to upper layers when a received buffer
17839 * indicates that it is the final frame in the sequence. The interrupt
17840 * service routine processes received buffers at interrupt contexts.
17841 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
17842 * appropriate receive function when the final frame in a sequence is received.
17845 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
17846 struct hbq_dmabuf *dmabuf)
17848 struct hbq_dmabuf *seq_dmabuf;
17849 struct fc_frame_header *fc_hdr;
17850 struct lpfc_vport *vport;
17854 /* Process each received buffer */
17855 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17857 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
17858 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
17859 vport = phba->pport;
17860 /* Handle MDS Loopback frames */
17861 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
17865 /* check to see if this a valid type of frame */
17866 if (lpfc_fc_frame_check(phba, fc_hdr)) {
17867 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17871 if ((bf_get(lpfc_cqe_code,
17872 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
17873 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
17874 &dmabuf->cq_event.cqe.rcqe_cmpl);
17876 fcfi = bf_get(lpfc_rcqe_fcf_id,
17877 &dmabuf->cq_event.cqe.rcqe_cmpl);
17879 /* d_id this frame is directed to */
17880 did = sli4_did_from_fc_hdr(fc_hdr);
17882 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
17884 /* throw out the frame */
17885 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17889 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
17890 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
17891 (did != Fabric_DID)) {
17893 * Throw out the frame if we are not pt2pt.
17894 * The pt2pt protocol allows for discovery frames
17895 * to be received without a registered VPI.
17897 if (!(vport->fc_flag & FC_PT2PT) ||
17898 (phba->link_state == LPFC_HBA_READY)) {
17899 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17904 /* Handle the basic abort sequence (BA_ABTS) event */
17905 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
17906 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
17910 /* Link this frame */
17911 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
17913 /* unable to add frame to vport - throw it out */
17914 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17917 /* If not last frame in sequence continue processing frames. */
17918 if (!lpfc_seq_complete(seq_dmabuf))
17921 /* Send the complete sequence to the upper layer protocol */
17922 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
17926 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
17927 * @phba: pointer to lpfc hba data structure.
17929 * This routine is invoked to post rpi header templates to the
17930 * HBA consistent with the SLI-4 interface spec. This routine
17931 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17932 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17934 * This routine does not require any locks. It's usage is expected
17935 * to be driver load or reset recovery when the driver is
17940 * -EIO - The mailbox failed to complete successfully.
17941 * When this error occurs, the driver is not guaranteed
17942 * to have any rpi regions posted to the device and
17943 * must either attempt to repost the regions or take a
17947 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
17949 struct lpfc_rpi_hdr *rpi_page;
17953 /* SLI4 ports that support extents do not require RPI headers. */
17954 if (!phba->sli4_hba.rpi_hdrs_in_use)
17956 if (phba->sli4_hba.extents_in_use)
17959 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
17961 * Assign the rpi headers a physical rpi only if the driver
17962 * has not initialized those resources. A port reset only
17963 * needs the headers posted.
17965 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
17967 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17969 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
17970 if (rc != MBX_SUCCESS) {
17971 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17972 "2008 Error %d posting all rpi "
17980 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
17981 LPFC_RPI_RSRC_RDY);
17986 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
17987 * @phba: pointer to lpfc hba data structure.
17988 * @rpi_page: pointer to the rpi memory region.
17990 * This routine is invoked to post a single rpi header to the
17991 * HBA consistent with the SLI-4 interface spec. This memory region
17992 * maps up to 64 rpi context regions.
17996 * -ENOMEM - No available memory
17997 * -EIO - The mailbox failed to complete successfully.
18000 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
18002 LPFC_MBOXQ_t *mboxq;
18003 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
18005 uint32_t shdr_status, shdr_add_status;
18006 union lpfc_sli4_cfg_shdr *shdr;
18008 /* SLI4 ports that support extents do not require RPI headers. */
18009 if (!phba->sli4_hba.rpi_hdrs_in_use)
18011 if (phba->sli4_hba.extents_in_use)
18014 /* The port is notified of the header region via a mailbox command. */
18015 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18017 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18018 "2001 Unable to allocate memory for issuing "
18019 "SLI_CONFIG_SPECIAL mailbox command\n");
18023 /* Post all rpi memory regions to the port. */
18024 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
18025 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18026 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
18027 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
18028 sizeof(struct lpfc_sli4_cfg_mhdr),
18029 LPFC_SLI4_MBX_EMBED);
18032 /* Post the physical rpi to the port for this rpi header. */
18033 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
18034 rpi_page->start_rpi);
18035 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
18036 hdr_tmpl, rpi_page->page_count);
18038 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
18039 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
18040 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18041 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
18042 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18043 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18044 if (rc != MBX_TIMEOUT)
18045 mempool_free(mboxq, phba->mbox_mem_pool);
18046 if (shdr_status || shdr_add_status || rc) {
18047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18048 "2514 POST_RPI_HDR mailbox failed with "
18049 "status x%x add_status x%x, mbx status x%x\n",
18050 shdr_status, shdr_add_status, rc);
18054 * The next_rpi stores the next logical module-64 rpi value used
18055 * to post physical rpis in subsequent rpi postings.
18057 spin_lock_irq(&phba->hbalock);
18058 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
18059 spin_unlock_irq(&phba->hbalock);
18065 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
18066 * @phba: pointer to lpfc hba data structure.
18068 * This routine is invoked to post rpi header templates to the
18069 * HBA consistent with the SLI-4 interface spec. This routine
18070 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18071 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18074 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
18075 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
18078 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
18081 uint16_t max_rpi, rpi_limit;
18082 uint16_t rpi_remaining, lrpi = 0;
18083 struct lpfc_rpi_hdr *rpi_hdr;
18084 unsigned long iflag;
18087 * Fetch the next logical rpi. Because this index is logical,
18088 * the driver starts at 0 each time.
18090 spin_lock_irqsave(&phba->hbalock, iflag);
18091 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
18092 rpi_limit = phba->sli4_hba.next_rpi;
18094 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
18095 if (rpi >= rpi_limit)
18096 rpi = LPFC_RPI_ALLOC_ERROR;
18098 set_bit(rpi, phba->sli4_hba.rpi_bmask);
18099 phba->sli4_hba.max_cfg_param.rpi_used++;
18100 phba->sli4_hba.rpi_count++;
18102 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
18103 "0001 rpi:%x max:%x lim:%x\n",
18104 (int) rpi, max_rpi, rpi_limit);
18107 * Don't try to allocate more rpi header regions if the device limit
18108 * has been exhausted.
18110 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
18111 (phba->sli4_hba.rpi_count >= max_rpi)) {
18112 spin_unlock_irqrestore(&phba->hbalock, iflag);
18117 * RPI header postings are not required for SLI4 ports capable of
18120 if (!phba->sli4_hba.rpi_hdrs_in_use) {
18121 spin_unlock_irqrestore(&phba->hbalock, iflag);
18126 * If the driver is running low on rpi resources, allocate another
18127 * page now. Note that the next_rpi value is used because
18128 * it represents how many are actually in use whereas max_rpi notes
18129 * how many are supported max by the device.
18131 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
18132 spin_unlock_irqrestore(&phba->hbalock, iflag);
18133 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
18134 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
18136 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18137 "2002 Error Could not grow rpi "
18140 lrpi = rpi_hdr->start_rpi;
18141 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18142 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
18150 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18151 * @phba: pointer to lpfc hba data structure.
18153 * This routine is invoked to release an rpi to the pool of
18154 * available rpis maintained by the driver.
18157 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18159 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
18160 phba->sli4_hba.rpi_count--;
18161 phba->sli4_hba.max_cfg_param.rpi_used--;
18166 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18167 * @phba: pointer to lpfc hba data structure.
18169 * This routine is invoked to release an rpi to the pool of
18170 * available rpis maintained by the driver.
18173 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18175 spin_lock_irq(&phba->hbalock);
18176 __lpfc_sli4_free_rpi(phba, rpi);
18177 spin_unlock_irq(&phba->hbalock);
18181 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
18182 * @phba: pointer to lpfc hba data structure.
18184 * This routine is invoked to remove the memory region that
18185 * provided rpi via a bitmask.
18188 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
18190 kfree(phba->sli4_hba.rpi_bmask);
18191 kfree(phba->sli4_hba.rpi_ids);
18192 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
18196 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
18197 * @phba: pointer to lpfc hba data structure.
18199 * This routine is invoked to remove the memory region that
18200 * provided rpi via a bitmask.
18203 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
18204 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
18206 LPFC_MBOXQ_t *mboxq;
18207 struct lpfc_hba *phba = ndlp->phba;
18210 /* The port is notified of the header region via a mailbox command. */
18211 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18215 /* Post all rpi memory regions to the port. */
18216 lpfc_resume_rpi(mboxq, ndlp);
18218 mboxq->mbox_cmpl = cmpl;
18219 mboxq->ctx_buf = arg;
18220 mboxq->ctx_ndlp = ndlp;
18222 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18223 mboxq->vport = ndlp->vport;
18224 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18225 if (rc == MBX_NOT_FINISHED) {
18226 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18227 "2010 Resume RPI Mailbox failed "
18228 "status %d, mbxStatus x%x\n", rc,
18229 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18230 mempool_free(mboxq, phba->mbox_mem_pool);
18237 * lpfc_sli4_init_vpi - Initialize a vpi with the port
18238 * @vport: Pointer to the vport for which the vpi is being initialized
18240 * This routine is invoked to activate a vpi with the port.
18244 * -Evalue otherwise
18247 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
18249 LPFC_MBOXQ_t *mboxq;
18251 int retval = MBX_SUCCESS;
18253 struct lpfc_hba *phba = vport->phba;
18254 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18257 lpfc_init_vpi(phba, mboxq, vport->vpi);
18258 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
18259 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
18260 if (rc != MBX_SUCCESS) {
18261 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
18262 "2022 INIT VPI Mailbox failed "
18263 "status %d, mbxStatus x%x\n", rc,
18264 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18267 if (rc != MBX_TIMEOUT)
18268 mempool_free(mboxq, vport->phba->mbox_mem_pool);
18274 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
18275 * @phba: pointer to lpfc hba data structure.
18276 * @mboxq: Pointer to mailbox object.
18278 * This routine is invoked to manually add a single FCF record. The caller
18279 * must pass a completely initialized FCF_Record. This routine takes
18280 * care of the nonembedded mailbox operations.
18283 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
18286 union lpfc_sli4_cfg_shdr *shdr;
18287 uint32_t shdr_status, shdr_add_status;
18289 virt_addr = mboxq->sge_array->addr[0];
18290 /* The IOCTL status is embedded in the mailbox subheader. */
18291 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
18292 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18293 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18295 if ((shdr_status || shdr_add_status) &&
18296 (shdr_status != STATUS_FCF_IN_USE))
18297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18298 "2558 ADD_FCF_RECORD mailbox failed with "
18299 "status x%x add_status x%x\n",
18300 shdr_status, shdr_add_status);
18302 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18306 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
18307 * @phba: pointer to lpfc hba data structure.
18308 * @fcf_record: pointer to the initialized fcf record to add.
18310 * This routine is invoked to manually add a single FCF record. The caller
18311 * must pass a completely initialized FCF_Record. This routine takes
18312 * care of the nonembedded mailbox operations.
18315 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
18318 LPFC_MBOXQ_t *mboxq;
18321 struct lpfc_mbx_sge sge;
18322 uint32_t alloc_len, req_len;
18325 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18328 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
18332 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
18335 /* Allocate DMA memory and set up the non-embedded mailbox command */
18336 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18337 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
18338 req_len, LPFC_SLI4_MBX_NEMBED);
18339 if (alloc_len < req_len) {
18340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18341 "2523 Allocated DMA memory size (x%x) is "
18342 "less than the requested DMA memory "
18343 "size (x%x)\n", alloc_len, req_len);
18344 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18349 * Get the first SGE entry from the non-embedded DMA memory. This
18350 * routine only uses a single SGE.
18352 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
18353 virt_addr = mboxq->sge_array->addr[0];
18355 * Configure the FCF record for FCFI 0. This is the driver's
18356 * hardcoded default and gets used in nonFIP mode.
18358 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
18359 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
18360 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
18363 * Copy the fcf_index and the FCF Record Data. The data starts after
18364 * the FCoE header plus word10. The data copy needs to be endian
18367 bytep += sizeof(uint32_t);
18368 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
18369 mboxq->vport = phba->pport;
18370 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
18371 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18372 if (rc == MBX_NOT_FINISHED) {
18373 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18374 "2515 ADD_FCF_RECORD mailbox failed with "
18375 "status 0x%x\n", rc);
18376 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18385 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
18386 * @phba: pointer to lpfc hba data structure.
18387 * @fcf_record: pointer to the fcf record to write the default data.
18388 * @fcf_index: FCF table entry index.
18390 * This routine is invoked to build the driver's default FCF record. The
18391 * values used are hardcoded. This routine handles memory initialization.
18395 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
18396 struct fcf_record *fcf_record,
18397 uint16_t fcf_index)
18399 memset(fcf_record, 0, sizeof(struct fcf_record));
18400 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
18401 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
18402 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
18403 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
18404 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
18405 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
18406 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
18407 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
18408 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
18409 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
18410 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
18411 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
18412 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
18413 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
18414 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
18415 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
18416 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
18417 /* Set the VLAN bit map */
18418 if (phba->valid_vlan) {
18419 fcf_record->vlan_bitmap[phba->vlan_id / 8]
18420 = 1 << (phba->vlan_id % 8);
18425 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
18426 * @phba: pointer to lpfc hba data structure.
18427 * @fcf_index: FCF table entry offset.
18429 * This routine is invoked to scan the entire FCF table by reading FCF
18430 * record and processing it one at a time starting from the @fcf_index
18431 * for initial FCF discovery or fast FCF failover rediscovery.
18433 * Return 0 if the mailbox command is submitted successfully, none 0
18437 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18440 LPFC_MBOXQ_t *mboxq;
18442 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
18443 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
18444 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18447 "2000 Failed to allocate mbox for "
18450 goto fail_fcf_scan;
18452 /* Construct the read FCF record mailbox command */
18453 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18456 goto fail_fcf_scan;
18458 /* Issue the mailbox command asynchronously */
18459 mboxq->vport = phba->pport;
18460 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
18462 spin_lock_irq(&phba->hbalock);
18463 phba->hba_flag |= FCF_TS_INPROG;
18464 spin_unlock_irq(&phba->hbalock);
18466 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18467 if (rc == MBX_NOT_FINISHED)
18470 /* Reset eligible FCF count for new scan */
18471 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
18472 phba->fcf.eligible_fcf_cnt = 0;
18478 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18479 /* FCF scan failed, clear FCF_TS_INPROG flag */
18480 spin_lock_irq(&phba->hbalock);
18481 phba->hba_flag &= ~FCF_TS_INPROG;
18482 spin_unlock_irq(&phba->hbalock);
18488 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
18489 * @phba: pointer to lpfc hba data structure.
18490 * @fcf_index: FCF table entry offset.
18492 * This routine is invoked to read an FCF record indicated by @fcf_index
18493 * and to use it for FLOGI roundrobin FCF failover.
18495 * Return 0 if the mailbox command is submitted successfully, none 0
18499 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18502 LPFC_MBOXQ_t *mboxq;
18504 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18506 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18507 "2763 Failed to allocate mbox for "
18510 goto fail_fcf_read;
18512 /* Construct the read FCF record mailbox command */
18513 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18516 goto fail_fcf_read;
18518 /* Issue the mailbox command asynchronously */
18519 mboxq->vport = phba->pport;
18520 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
18521 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18522 if (rc == MBX_NOT_FINISHED)
18528 if (error && mboxq)
18529 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18534 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
18535 * @phba: pointer to lpfc hba data structure.
18536 * @fcf_index: FCF table entry offset.
18538 * This routine is invoked to read an FCF record indicated by @fcf_index to
18539 * determine whether it's eligible for FLOGI roundrobin failover list.
18541 * Return 0 if the mailbox command is submitted successfully, none 0
18545 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18548 LPFC_MBOXQ_t *mboxq;
18550 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18552 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18553 "2758 Failed to allocate mbox for "
18556 goto fail_fcf_read;
18558 /* Construct the read FCF record mailbox command */
18559 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18562 goto fail_fcf_read;
18564 /* Issue the mailbox command asynchronously */
18565 mboxq->vport = phba->pport;
18566 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
18567 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18568 if (rc == MBX_NOT_FINISHED)
18574 if (error && mboxq)
18575 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18580 * lpfc_check_next_fcf_pri_level
18581 * phba pointer to the lpfc_hba struct for this port.
18582 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
18583 * routine when the rr_bmask is empty. The FCF indecies are put into the
18584 * rr_bmask based on their priority level. Starting from the highest priority
18585 * to the lowest. The most likely FCF candidate will be in the highest
18586 * priority group. When this routine is called it searches the fcf_pri list for
18587 * next lowest priority group and repopulates the rr_bmask with only those
18590 * 1=success 0=failure
18593 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
18595 uint16_t next_fcf_pri;
18596 uint16_t last_index;
18597 struct lpfc_fcf_pri *fcf_pri;
18601 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
18602 LPFC_SLI4_FCF_TBL_INDX_MAX);
18603 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18604 "3060 Last IDX %d\n", last_index);
18606 /* Verify the priority list has 2 or more entries */
18607 spin_lock_irq(&phba->hbalock);
18608 if (list_empty(&phba->fcf.fcf_pri_list) ||
18609 list_is_singular(&phba->fcf.fcf_pri_list)) {
18610 spin_unlock_irq(&phba->hbalock);
18611 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18612 "3061 Last IDX %d\n", last_index);
18613 return 0; /* Empty rr list */
18615 spin_unlock_irq(&phba->hbalock);
18619 * Clear the rr_bmask and set all of the bits that are at this
18622 memset(phba->fcf.fcf_rr_bmask, 0,
18623 sizeof(*phba->fcf.fcf_rr_bmask));
18624 spin_lock_irq(&phba->hbalock);
18625 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18626 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
18629 * the 1st priority that has not FLOGI failed
18630 * will be the highest.
18633 next_fcf_pri = fcf_pri->fcf_rec.priority;
18634 spin_unlock_irq(&phba->hbalock);
18635 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18636 rc = lpfc_sli4_fcf_rr_index_set(phba,
18637 fcf_pri->fcf_rec.fcf_index);
18641 spin_lock_irq(&phba->hbalock);
18644 * if next_fcf_pri was not set above and the list is not empty then
18645 * we have failed flogis on all of them. So reset flogi failed
18646 * and start at the beginning.
18648 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
18649 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18650 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
18652 * the 1st priority that has not FLOGI failed
18653 * will be the highest.
18656 next_fcf_pri = fcf_pri->fcf_rec.priority;
18657 spin_unlock_irq(&phba->hbalock);
18658 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18659 rc = lpfc_sli4_fcf_rr_index_set(phba,
18660 fcf_pri->fcf_rec.fcf_index);
18664 spin_lock_irq(&phba->hbalock);
18668 spin_unlock_irq(&phba->hbalock);
18673 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
18674 * @phba: pointer to lpfc hba data structure.
18676 * This routine is to get the next eligible FCF record index in a round
18677 * robin fashion. If the next eligible FCF record index equals to the
18678 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
18679 * shall be returned, otherwise, the next eligible FCF record's index
18680 * shall be returned.
18683 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
18685 uint16_t next_fcf_index;
18688 /* Search start from next bit of currently registered FCF index */
18689 next_fcf_index = phba->fcf.current_rec.fcf_indx;
18692 /* Determine the next fcf index to check */
18693 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
18694 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18695 LPFC_SLI4_FCF_TBL_INDX_MAX,
18698 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
18699 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18701 * If we have wrapped then we need to clear the bits that
18702 * have been tested so that we can detect when we should
18703 * change the priority level.
18705 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18706 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
18710 /* Check roundrobin failover list empty condition */
18711 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
18712 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
18714 * If next fcf index is not found check if there are lower
18715 * Priority level fcf's in the fcf_priority list.
18716 * Set up the rr_bmask with all of the avaiable fcf bits
18717 * at that level and continue the selection process.
18719 if (lpfc_check_next_fcf_pri_level(phba))
18720 goto initial_priority;
18721 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18722 "2844 No roundrobin failover FCF available\n");
18724 return LPFC_FCOE_FCF_NEXT_NONE;
18727 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
18728 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
18729 LPFC_FCF_FLOGI_FAILED) {
18730 if (list_is_singular(&phba->fcf.fcf_pri_list))
18731 return LPFC_FCOE_FCF_NEXT_NONE;
18733 goto next_priority;
18736 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18737 "2845 Get next roundrobin failover FCF (x%x)\n",
18740 return next_fcf_index;
18744 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
18745 * @phba: pointer to lpfc hba data structure.
18747 * This routine sets the FCF record index in to the eligible bmask for
18748 * roundrobin failover search. It checks to make sure that the index
18749 * does not go beyond the range of the driver allocated bmask dimension
18750 * before setting the bit.
18752 * Returns 0 if the index bit successfully set, otherwise, it returns
18756 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
18758 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18759 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18760 "2610 FCF (x%x) reached driver's book "
18761 "keeping dimension:x%x\n",
18762 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18765 /* Set the eligible FCF record index bmask */
18766 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18768 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18769 "2790 Set FCF (x%x) to roundrobin FCF failover "
18770 "bmask\n", fcf_index);
18776 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
18777 * @phba: pointer to lpfc hba data structure.
18779 * This routine clears the FCF record index from the eligible bmask for
18780 * roundrobin failover search. It checks to make sure that the index
18781 * does not go beyond the range of the driver allocated bmask dimension
18782 * before clearing the bit.
18785 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
18787 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
18788 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18789 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18790 "2762 FCF (x%x) reached driver's book "
18791 "keeping dimension:x%x\n",
18792 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18795 /* Clear the eligible FCF record index bmask */
18796 spin_lock_irq(&phba->hbalock);
18797 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
18799 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
18800 list_del_init(&fcf_pri->list);
18804 spin_unlock_irq(&phba->hbalock);
18805 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18807 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18808 "2791 Clear FCF (x%x) from roundrobin failover "
18809 "bmask\n", fcf_index);
18813 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
18814 * @phba: pointer to lpfc hba data structure.
18816 * This routine is the completion routine for the rediscover FCF table mailbox
18817 * command. If the mailbox command returned failure, it will try to stop the
18818 * FCF rediscover wait timer.
18821 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
18823 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18824 uint32_t shdr_status, shdr_add_status;
18826 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18828 shdr_status = bf_get(lpfc_mbox_hdr_status,
18829 &redisc_fcf->header.cfg_shdr.response);
18830 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
18831 &redisc_fcf->header.cfg_shdr.response);
18832 if (shdr_status || shdr_add_status) {
18833 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18834 "2746 Requesting for FCF rediscovery failed "
18835 "status x%x add_status x%x\n",
18836 shdr_status, shdr_add_status);
18837 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
18838 spin_lock_irq(&phba->hbalock);
18839 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
18840 spin_unlock_irq(&phba->hbalock);
18842 * CVL event triggered FCF rediscover request failed,
18843 * last resort to re-try current registered FCF entry.
18845 lpfc_retry_pport_discovery(phba);
18847 spin_lock_irq(&phba->hbalock);
18848 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
18849 spin_unlock_irq(&phba->hbalock);
18851 * DEAD FCF event triggered FCF rediscover request
18852 * failed, last resort to fail over as a link down
18853 * to FCF registration.
18855 lpfc_sli4_fcf_dead_failthrough(phba);
18858 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18859 "2775 Start FCF rediscover quiescent timer\n");
18861 * Start FCF rediscovery wait timer for pending FCF
18862 * before rescan FCF record table.
18864 lpfc_fcf_redisc_wait_start_timer(phba);
18867 mempool_free(mbox, phba->mbox_mem_pool);
18871 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
18872 * @phba: pointer to lpfc hba data structure.
18874 * This routine is invoked to request for rediscovery of the entire FCF table
18878 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
18880 LPFC_MBOXQ_t *mbox;
18881 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18884 /* Cancel retry delay timers to all vports before FCF rediscover */
18885 lpfc_cancel_all_vport_retry_delay_timer(phba);
18887 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18889 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18890 "2745 Failed to allocate mbox for "
18891 "requesting FCF rediscover.\n");
18895 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
18896 sizeof(struct lpfc_sli4_cfg_mhdr));
18897 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18898 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
18899 length, LPFC_SLI4_MBX_EMBED);
18901 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18902 /* Set count to 0 for invalidating the entire FCF database */
18903 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
18905 /* Issue the mailbox command asynchronously */
18906 mbox->vport = phba->pport;
18907 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
18908 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
18910 if (rc == MBX_NOT_FINISHED) {
18911 mempool_free(mbox, phba->mbox_mem_pool);
18918 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
18919 * @phba: pointer to lpfc hba data structure.
18921 * This function is the failover routine as a last resort to the FCF DEAD
18922 * event when driver failed to perform fast FCF failover.
18925 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
18927 uint32_t link_state;
18930 * Last resort as FCF DEAD event failover will treat this as
18931 * a link down, but save the link state because we don't want
18932 * it to be changed to Link Down unless it is already down.
18934 link_state = phba->link_state;
18935 lpfc_linkdown(phba);
18936 phba->link_state = link_state;
18938 /* Unregister FCF if no devices connected to it */
18939 lpfc_unregister_unused_fcf(phba);
18943 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
18944 * @phba: pointer to lpfc hba data structure.
18945 * @rgn23_data: pointer to configure region 23 data.
18947 * This function gets SLI3 port configure region 23 data through memory dump
18948 * mailbox command. When it successfully retrieves data, the size of the data
18949 * will be returned, otherwise, 0 will be returned.
18952 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18954 LPFC_MBOXQ_t *pmb = NULL;
18956 uint32_t offset = 0;
18962 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18965 "2600 failed to allocate mailbox memory\n");
18971 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
18972 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
18974 if (rc != MBX_SUCCESS) {
18975 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
18976 "2601 failed to read config "
18977 "region 23, rc 0x%x Status 0x%x\n",
18978 rc, mb->mbxStatus);
18979 mb->un.varDmp.word_cnt = 0;
18982 * dump mem may return a zero when finished or we got a
18983 * mailbox error, either way we are done.
18985 if (mb->un.varDmp.word_cnt == 0)
18987 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
18988 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
18990 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
18991 rgn23_data + offset,
18992 mb->un.varDmp.word_cnt);
18993 offset += mb->un.varDmp.word_cnt;
18994 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
18996 mempool_free(pmb, phba->mbox_mem_pool);
19001 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
19002 * @phba: pointer to lpfc hba data structure.
19003 * @rgn23_data: pointer to configure region 23 data.
19005 * This function gets SLI4 port configure region 23 data through memory dump
19006 * mailbox command. When it successfully retrieves data, the size of the data
19007 * will be returned, otherwise, 0 will be returned.
19010 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19012 LPFC_MBOXQ_t *mboxq = NULL;
19013 struct lpfc_dmabuf *mp = NULL;
19014 struct lpfc_mqe *mqe;
19015 uint32_t data_length = 0;
19021 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19023 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19024 "3105 failed to allocate mailbox memory\n");
19028 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
19030 mqe = &mboxq->u.mqe;
19031 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
19032 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
19035 data_length = mqe->un.mb_words[5];
19036 if (data_length == 0)
19038 if (data_length > DMP_RGN23_SIZE) {
19042 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
19044 mempool_free(mboxq, phba->mbox_mem_pool);
19046 lpfc_mbuf_free(phba, mp->virt, mp->phys);
19049 return data_length;
19053 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
19054 * @phba: pointer to lpfc hba data structure.
19056 * This function read region 23 and parse TLV for port status to
19057 * decide if the user disaled the port. If the TLV indicates the
19058 * port is disabled, the hba_flag is set accordingly.
19061 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
19063 uint8_t *rgn23_data = NULL;
19064 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
19065 uint32_t offset = 0;
19067 /* Get adapter Region 23 data */
19068 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
19072 if (phba->sli_rev < LPFC_SLI_REV4)
19073 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
19075 if_type = bf_get(lpfc_sli_intf_if_type,
19076 &phba->sli4_hba.sli_intf);
19077 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
19079 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
19085 /* Check the region signature first */
19086 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
19087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19088 "2619 Config region 23 has bad signature\n");
19093 /* Check the data structure version */
19094 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
19095 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19096 "2620 Config region 23 has bad version\n");
19101 /* Parse TLV entries in the region */
19102 while (offset < data_size) {
19103 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
19106 * If the TLV is not driver specific TLV or driver id is
19107 * not linux driver id, skip the record.
19109 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
19110 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
19111 (rgn23_data[offset + 3] != 0)) {
19112 offset += rgn23_data[offset + 1] * 4 + 4;
19116 /* Driver found a driver specific TLV in the config region */
19117 sub_tlv_len = rgn23_data[offset + 1] * 4;
19122 * Search for configured port state sub-TLV.
19124 while ((offset < data_size) &&
19125 (tlv_offset < sub_tlv_len)) {
19126 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
19131 if (rgn23_data[offset] != PORT_STE_TYPE) {
19132 offset += rgn23_data[offset + 1] * 4 + 4;
19133 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
19137 /* This HBA contains PORT_STE configured */
19138 if (!rgn23_data[offset + 2])
19139 phba->hba_flag |= LINK_DISABLED;
19151 * lpfc_wr_object - write an object to the firmware
19152 * @phba: HBA structure that indicates port to create a queue on.
19153 * @dmabuf_list: list of dmabufs to write to the port.
19154 * @size: the total byte value of the objects to write to the port.
19155 * @offset: the current offset to be used to start the transfer.
19157 * This routine will create a wr_object mailbox command to send to the port.
19158 * the mailbox command will be constructed using the dma buffers described in
19159 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
19160 * BDEs that the imbedded mailbox can support. The @offset variable will be
19161 * used to indicate the starting offset of the transfer and will also return
19162 * the offset after the write object mailbox has completed. @size is used to
19163 * determine the end of the object and whether the eof bit should be set.
19165 * Return 0 is successful and offset will contain the the new offset to use
19166 * for the next write.
19167 * Return negative value for error cases.
19170 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
19171 uint32_t size, uint32_t *offset)
19173 struct lpfc_mbx_wr_object *wr_object;
19174 LPFC_MBOXQ_t *mbox;
19176 uint32_t shdr_status, shdr_add_status, shdr_change_status;
19178 struct lpfc_dmabuf *dmabuf;
19179 uint32_t written = 0;
19180 bool check_change_status = false;
19182 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19186 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
19187 LPFC_MBOX_OPCODE_WRITE_OBJECT,
19188 sizeof(struct lpfc_mbx_wr_object) -
19189 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
19191 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
19192 wr_object->u.request.write_offset = *offset;
19193 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
19194 wr_object->u.request.object_name[0] =
19195 cpu_to_le32(wr_object->u.request.object_name[0]);
19196 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
19197 list_for_each_entry(dmabuf, dmabuf_list, list) {
19198 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
19200 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
19201 wr_object->u.request.bde[i].addrHigh =
19202 putPaddrHigh(dmabuf->phys);
19203 if (written + SLI4_PAGE_SIZE >= size) {
19204 wr_object->u.request.bde[i].tus.f.bdeSize =
19206 written += (size - written);
19207 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
19208 bf_set(lpfc_wr_object_eas, &wr_object->u.request, 1);
19209 check_change_status = true;
19211 wr_object->u.request.bde[i].tus.f.bdeSize =
19213 written += SLI4_PAGE_SIZE;
19217 wr_object->u.request.bde_count = i;
19218 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
19219 if (!phba->sli4_hba.intr_enable)
19220 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
19222 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
19223 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
19225 /* The IOCTL status is embedded in the mailbox subheader. */
19226 shdr_status = bf_get(lpfc_mbox_hdr_status,
19227 &wr_object->header.cfg_shdr.response);
19228 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
19229 &wr_object->header.cfg_shdr.response);
19230 if (check_change_status) {
19231 shdr_change_status = bf_get(lpfc_wr_object_change_status,
19232 &wr_object->u.response);
19233 switch (shdr_change_status) {
19234 case (LPFC_CHANGE_STATUS_PHYS_DEV_RESET):
19235 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19236 "3198 Firmware write complete: System "
19237 "reboot required to instantiate\n");
19239 case (LPFC_CHANGE_STATUS_FW_RESET):
19240 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19241 "3199 Firmware write complete: Firmware"
19242 " reset required to instantiate\n");
19244 case (LPFC_CHANGE_STATUS_PORT_MIGRATION):
19245 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19246 "3200 Firmware write complete: Port "
19247 "Migration or PCI Reset required to "
19250 case (LPFC_CHANGE_STATUS_PCI_RESET):
19251 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19252 "3201 Firmware write complete: PCI "
19253 "Reset required to instantiate\n");
19259 if (rc != MBX_TIMEOUT)
19260 mempool_free(mbox, phba->mbox_mem_pool);
19261 if (shdr_status || shdr_add_status || rc) {
19262 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19263 "3025 Write Object mailbox failed with "
19264 "status x%x add_status x%x, mbx status x%x\n",
19265 shdr_status, shdr_add_status, rc);
19267 *offset = shdr_add_status;
19269 *offset += wr_object->u.response.actual_write_length;
19274 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
19275 * @vport: pointer to vport data structure.
19277 * This function iterate through the mailboxq and clean up all REG_LOGIN
19278 * and REG_VPI mailbox commands associated with the vport. This function
19279 * is called when driver want to restart discovery of the vport due to
19280 * a Clear Virtual Link event.
19283 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
19285 struct lpfc_hba *phba = vport->phba;
19286 LPFC_MBOXQ_t *mb, *nextmb;
19287 struct lpfc_dmabuf *mp;
19288 struct lpfc_nodelist *ndlp;
19289 struct lpfc_nodelist *act_mbx_ndlp = NULL;
19290 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
19291 LIST_HEAD(mbox_cmd_list);
19292 uint8_t restart_loop;
19294 /* Clean up internally queued mailbox commands with the vport */
19295 spin_lock_irq(&phba->hbalock);
19296 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
19297 if (mb->vport != vport)
19300 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19301 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19304 list_del(&mb->list);
19305 list_add_tail(&mb->list, &mbox_cmd_list);
19307 /* Clean up active mailbox command with the vport */
19308 mb = phba->sli.mbox_active;
19309 if (mb && (mb->vport == vport)) {
19310 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
19311 (mb->u.mb.mbxCommand == MBX_REG_VPI))
19312 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19313 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19314 act_mbx_ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19315 /* Put reference count for delayed processing */
19316 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
19317 /* Unregister the RPI when mailbox complete */
19318 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19321 /* Cleanup any mailbox completions which are not yet processed */
19324 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
19326 * If this mailox is already processed or it is
19327 * for another vport ignore it.
19329 if ((mb->vport != vport) ||
19330 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
19333 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19334 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19337 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19338 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19339 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19340 /* Unregister the RPI when mailbox complete */
19341 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19343 spin_unlock_irq(&phba->hbalock);
19344 spin_lock(shost->host_lock);
19345 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19346 spin_unlock(shost->host_lock);
19347 spin_lock_irq(&phba->hbalock);
19351 } while (restart_loop);
19353 spin_unlock_irq(&phba->hbalock);
19355 /* Release the cleaned-up mailbox commands */
19356 while (!list_empty(&mbox_cmd_list)) {
19357 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
19358 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19359 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
19361 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
19364 mb->ctx_buf = NULL;
19365 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19366 mb->ctx_ndlp = NULL;
19368 spin_lock(shost->host_lock);
19369 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19370 spin_unlock(shost->host_lock);
19371 lpfc_nlp_put(ndlp);
19374 mempool_free(mb, phba->mbox_mem_pool);
19377 /* Release the ndlp with the cleaned-up active mailbox command */
19378 if (act_mbx_ndlp) {
19379 spin_lock(shost->host_lock);
19380 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19381 spin_unlock(shost->host_lock);
19382 lpfc_nlp_put(act_mbx_ndlp);
19387 * lpfc_drain_txq - Drain the txq
19388 * @phba: Pointer to HBA context object.
19390 * This function attempt to submit IOCBs on the txq
19391 * to the adapter. For SLI4 adapters, the txq contains
19392 * ELS IOCBs that have been deferred because the there
19393 * are no SGLs. This congestion can occur with large
19394 * vport counts during node discovery.
19398 lpfc_drain_txq(struct lpfc_hba *phba)
19400 LIST_HEAD(completions);
19401 struct lpfc_sli_ring *pring;
19402 struct lpfc_iocbq *piocbq = NULL;
19403 unsigned long iflags = 0;
19404 char *fail_msg = NULL;
19405 struct lpfc_sglq *sglq;
19406 union lpfc_wqe128 wqe;
19407 uint32_t txq_cnt = 0;
19408 struct lpfc_queue *wq;
19410 if (phba->link_flag & LS_MDS_LOOPBACK) {
19411 /* MDS WQE are posted only to first WQ*/
19412 wq = phba->sli4_hba.hdwq[0].fcp_wq;
19417 wq = phba->sli4_hba.els_wq;
19420 pring = lpfc_phba_elsring(phba);
19423 if (unlikely(!pring) || list_empty(&pring->txq))
19426 spin_lock_irqsave(&pring->ring_lock, iflags);
19427 list_for_each_entry(piocbq, &pring->txq, list) {
19431 if (txq_cnt > pring->txq_max)
19432 pring->txq_max = txq_cnt;
19434 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19436 while (!list_empty(&pring->txq)) {
19437 spin_lock_irqsave(&pring->ring_lock, iflags);
19439 piocbq = lpfc_sli_ringtx_get(phba, pring);
19441 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19442 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19443 "2823 txq empty and txq_cnt is %d\n ",
19447 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
19449 __lpfc_sli_ringtx_put(phba, pring, piocbq);
19450 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19455 /* The xri and iocb resources secured,
19456 * attempt to issue request
19458 piocbq->sli4_lxritag = sglq->sli4_lxritag;
19459 piocbq->sli4_xritag = sglq->sli4_xritag;
19460 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
19461 fail_msg = "to convert bpl to sgl";
19462 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
19463 fail_msg = "to convert iocb to wqe";
19464 else if (lpfc_sli4_wq_put(wq, &wqe))
19465 fail_msg = " - Wq is full";
19467 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
19470 /* Failed means we can't issue and need to cancel */
19471 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19472 "2822 IOCB failed %s iotag 0x%x "
19475 piocbq->iotag, piocbq->sli4_xritag);
19476 list_add_tail(&piocbq->list, &completions);
19478 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19481 /* Cancel all the IOCBs that cannot be issued */
19482 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
19483 IOERR_SLI_ABORTED);
19489 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
19490 * @phba: Pointer to HBA context object.
19491 * @pwqe: Pointer to command WQE.
19492 * @sglq: Pointer to the scatter gather queue object.
19494 * This routine converts the bpl or bde that is in the WQE
19495 * to a sgl list for the sli4 hardware. The physical address
19496 * of the bpl/bde is converted back to a virtual address.
19497 * If the WQE contains a BPL then the list of BDE's is
19498 * converted to sli4_sge's. If the WQE contains a single
19499 * BDE then it is converted to a single sli_sge.
19500 * The WQE is still in cpu endianness so the contents of
19501 * the bpl can be used without byte swapping.
19503 * Returns valid XRI = Success, NO_XRI = Failure.
19506 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
19507 struct lpfc_sglq *sglq)
19509 uint16_t xritag = NO_XRI;
19510 struct ulp_bde64 *bpl = NULL;
19511 struct ulp_bde64 bde;
19512 struct sli4_sge *sgl = NULL;
19513 struct lpfc_dmabuf *dmabuf;
19514 union lpfc_wqe128 *wqe;
19517 uint32_t offset = 0; /* accumulated offset in the sg request list */
19518 int inbound = 0; /* number of sg reply entries inbound from firmware */
19521 if (!pwqeq || !sglq)
19524 sgl = (struct sli4_sge *)sglq->sgl;
19526 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
19528 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
19529 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
19530 return sglq->sli4_xritag;
19531 numBdes = pwqeq->rsvd2;
19533 /* The addrHigh and addrLow fields within the WQE
19534 * have not been byteswapped yet so there is no
19535 * need to swap them back.
19537 if (pwqeq->context3)
19538 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
19542 bpl = (struct ulp_bde64 *)dmabuf->virt;
19546 for (i = 0; i < numBdes; i++) {
19547 /* Should already be byte swapped. */
19548 sgl->addr_hi = bpl->addrHigh;
19549 sgl->addr_lo = bpl->addrLow;
19551 sgl->word2 = le32_to_cpu(sgl->word2);
19552 if ((i+1) == numBdes)
19553 bf_set(lpfc_sli4_sge_last, sgl, 1);
19555 bf_set(lpfc_sli4_sge_last, sgl, 0);
19556 /* swap the size field back to the cpu so we
19557 * can assign it to the sgl.
19559 bde.tus.w = le32_to_cpu(bpl->tus.w);
19560 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
19561 /* The offsets in the sgl need to be accumulated
19562 * separately for the request and reply lists.
19563 * The request is always first, the reply follows.
19566 case CMD_GEN_REQUEST64_WQE:
19567 /* add up the reply sg entries */
19568 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
19570 /* first inbound? reset the offset */
19573 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19574 bf_set(lpfc_sli4_sge_type, sgl,
19575 LPFC_SGE_TYPE_DATA);
19576 offset += bde.tus.f.bdeSize;
19578 case CMD_FCP_TRSP64_WQE:
19579 bf_set(lpfc_sli4_sge_offset, sgl, 0);
19580 bf_set(lpfc_sli4_sge_type, sgl,
19581 LPFC_SGE_TYPE_DATA);
19583 case CMD_FCP_TSEND64_WQE:
19584 case CMD_FCP_TRECEIVE64_WQE:
19585 bf_set(lpfc_sli4_sge_type, sgl,
19586 bpl->tus.f.bdeFlags);
19590 offset += bde.tus.f.bdeSize;
19591 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19594 sgl->word2 = cpu_to_le32(sgl->word2);
19598 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
19599 /* The addrHigh and addrLow fields of the BDE have not
19600 * been byteswapped yet so they need to be swapped
19601 * before putting them in the sgl.
19603 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
19604 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
19605 sgl->word2 = le32_to_cpu(sgl->word2);
19606 bf_set(lpfc_sli4_sge_last, sgl, 1);
19607 sgl->word2 = cpu_to_le32(sgl->word2);
19608 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
19610 return sglq->sli4_xritag;
19614 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
19615 * @phba: Pointer to HBA context object.
19616 * @ring_number: Base sli ring number
19617 * @pwqe: Pointer to command WQE.
19620 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, uint32_t ring_number,
19621 struct lpfc_iocbq *pwqe)
19623 union lpfc_wqe128 *wqe = &pwqe->wqe;
19624 struct lpfc_nvmet_rcv_ctx *ctxp;
19625 struct lpfc_queue *wq;
19626 struct lpfc_sglq *sglq;
19627 struct lpfc_sli_ring *pring;
19628 unsigned long iflags;
19631 /* NVME_LS and NVME_LS ABTS requests. */
19632 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
19633 pring = phba->sli4_hba.nvmels_wq->pring;
19634 spin_lock_irqsave(&pring->ring_lock, iflags);
19635 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
19637 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19640 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19641 pwqe->sli4_xritag = sglq->sli4_xritag;
19642 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
19643 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19646 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19647 pwqe->sli4_xritag);
19648 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
19650 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19654 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19655 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19659 /* NVME_FCREQ and NVME_ABTS requests */
19660 if (pwqe->iocb_flag & LPFC_IO_NVME) {
19661 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19662 pring = phba->sli4_hba.hdwq[pwqe->hba_wqidx].nvme_wq->pring;
19664 spin_lock_irqsave(&pring->ring_lock, iflags);
19665 wq = phba->sli4_hba.hdwq[pwqe->hba_wqidx].nvme_wq;
19666 bf_set(wqe_cqid, &wqe->generic.wqe_com,
19667 phba->sli4_hba.hdwq[pwqe->hba_wqidx].nvme_cq->queue_id);
19668 ret = lpfc_sli4_wq_put(wq, wqe);
19670 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19673 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19674 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19678 /* NVMET requests */
19679 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
19680 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19681 pring = phba->sli4_hba.hdwq[pwqe->hba_wqidx].nvme_wq->pring;
19683 spin_lock_irqsave(&pring->ring_lock, iflags);
19684 ctxp = pwqe->context2;
19685 sglq = ctxp->ctxbuf->sglq;
19686 if (pwqe->sli4_xritag == NO_XRI) {
19687 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19688 pwqe->sli4_xritag = sglq->sli4_xritag;
19690 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19691 pwqe->sli4_xritag);
19692 wq = phba->sli4_hba.hdwq[pwqe->hba_wqidx].nvme_wq;
19693 bf_set(wqe_cqid, &wqe->generic.wqe_com,
19694 phba->sli4_hba.hdwq[pwqe->hba_wqidx].nvme_cq->queue_id);
19695 ret = lpfc_sli4_wq_put(wq, wqe);
19697 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19700 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19701 spin_unlock_irqrestore(&pring->ring_lock, iflags);