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->context1);
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->context2;
2496 pmb->context2 = NULL;
2499 /* Check security permission status on INIT_LINK mailbox command */
2500 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2501 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2502 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2503 "2860 SLI authentication is required "
2504 "for INIT_LINK but has not done yet\n");
2506 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2507 lpfc_sli4_mbox_cmd_free(phba, pmb);
2509 mempool_free(pmb, phba->mbox_mem_pool);
2512 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2513 * @phba: Pointer to HBA context object.
2514 * @pmb: Pointer to mailbox object.
2516 * This function is the unreg rpi mailbox completion handler. It
2517 * frees the memory resources associated with the completed mailbox
2518 * command. An additional refrenece is put on the ndlp to prevent
2519 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2520 * the unreg mailbox command completes, this routine puts the
2525 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2527 struct lpfc_vport *vport = pmb->vport;
2528 struct lpfc_nodelist *ndlp;
2530 ndlp = pmb->context1;
2531 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2532 if (phba->sli_rev == LPFC_SLI_REV4 &&
2533 (bf_get(lpfc_sli_intf_if_type,
2534 &phba->sli4_hba.sli_intf) >=
2535 LPFC_SLI_INTF_IF_TYPE_2)) {
2537 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2538 "0010 UNREG_LOGIN vpi:%x "
2539 "rpi:%x DID:%x map:%x %p\n",
2540 vport->vpi, ndlp->nlp_rpi,
2542 ndlp->nlp_usg_map, ndlp);
2543 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2549 mempool_free(pmb, phba->mbox_mem_pool);
2553 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2554 * @phba: Pointer to HBA context object.
2556 * This function is called with no lock held. This function processes all
2557 * the completed mailbox commands and gives it to upper layers. The interrupt
2558 * service routine processes mailbox completion interrupt and adds completed
2559 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2560 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2561 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2562 * function returns the mailbox commands to the upper layer by calling the
2563 * completion handler function of each mailbox.
2566 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2573 phba->sli.slistat.mbox_event++;
2575 /* Get all completed mailboxe buffers into the cmplq */
2576 spin_lock_irq(&phba->hbalock);
2577 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2578 spin_unlock_irq(&phba->hbalock);
2580 /* Get a Mailbox buffer to setup mailbox commands for callback */
2582 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2588 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2590 lpfc_debugfs_disc_trc(pmb->vport,
2591 LPFC_DISC_TRC_MBOX_VPORT,
2592 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2593 (uint32_t)pmbox->mbxCommand,
2594 pmbox->un.varWords[0],
2595 pmbox->un.varWords[1]);
2598 lpfc_debugfs_disc_trc(phba->pport,
2600 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2601 (uint32_t)pmbox->mbxCommand,
2602 pmbox->un.varWords[0],
2603 pmbox->un.varWords[1]);
2608 * It is a fatal error if unknown mbox command completion.
2610 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2612 /* Unknown mailbox command compl */
2613 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2614 "(%d):0323 Unknown Mailbox command "
2615 "x%x (x%x/x%x) Cmpl\n",
2616 pmb->vport ? pmb->vport->vpi : 0,
2618 lpfc_sli_config_mbox_subsys_get(phba,
2620 lpfc_sli_config_mbox_opcode_get(phba,
2622 phba->link_state = LPFC_HBA_ERROR;
2623 phba->work_hs = HS_FFER3;
2624 lpfc_handle_eratt(phba);
2628 if (pmbox->mbxStatus) {
2629 phba->sli.slistat.mbox_stat_err++;
2630 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2631 /* Mbox cmd cmpl error - RETRYing */
2632 lpfc_printf_log(phba, KERN_INFO,
2634 "(%d):0305 Mbox cmd cmpl "
2635 "error - RETRYing Data: x%x "
2636 "(x%x/x%x) x%x x%x x%x\n",
2637 pmb->vport ? pmb->vport->vpi : 0,
2639 lpfc_sli_config_mbox_subsys_get(phba,
2641 lpfc_sli_config_mbox_opcode_get(phba,
2644 pmbox->un.varWords[0],
2645 pmb->vport->port_state);
2646 pmbox->mbxStatus = 0;
2647 pmbox->mbxOwner = OWN_HOST;
2648 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2649 if (rc != MBX_NOT_FINISHED)
2654 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2655 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2656 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2657 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2659 pmb->vport ? pmb->vport->vpi : 0,
2661 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2662 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2664 *((uint32_t *) pmbox),
2665 pmbox->un.varWords[0],
2666 pmbox->un.varWords[1],
2667 pmbox->un.varWords[2],
2668 pmbox->un.varWords[3],
2669 pmbox->un.varWords[4],
2670 pmbox->un.varWords[5],
2671 pmbox->un.varWords[6],
2672 pmbox->un.varWords[7],
2673 pmbox->un.varWords[8],
2674 pmbox->un.varWords[9],
2675 pmbox->un.varWords[10]);
2678 pmb->mbox_cmpl(phba,pmb);
2684 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2685 * @phba: Pointer to HBA context object.
2686 * @pring: Pointer to driver SLI ring object.
2689 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2690 * is set in the tag the buffer is posted for a particular exchange,
2691 * the function will return the buffer without replacing the buffer.
2692 * If the buffer is for unsolicited ELS or CT traffic, this function
2693 * returns the buffer and also posts another buffer to the firmware.
2695 static struct lpfc_dmabuf *
2696 lpfc_sli_get_buff(struct lpfc_hba *phba,
2697 struct lpfc_sli_ring *pring,
2700 struct hbq_dmabuf *hbq_entry;
2702 if (tag & QUE_BUFTAG_BIT)
2703 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2704 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2707 return &hbq_entry->dbuf;
2711 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2712 * @phba: Pointer to HBA context object.
2713 * @pring: Pointer to driver SLI ring object.
2714 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2715 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2716 * @fch_type: the type for the first frame of the sequence.
2718 * This function is called with no lock held. This function uses the r_ctl and
2719 * type of the received sequence to find the correct callback function to call
2720 * to process the sequence.
2723 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2724 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2731 lpfc_nvmet_unsol_ls_event(phba, pring, saveq);
2737 /* unSolicited Responses */
2738 if (pring->prt[0].profile) {
2739 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2740 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2744 /* We must search, based on rctl / type
2745 for the right routine */
2746 for (i = 0; i < pring->num_mask; i++) {
2747 if ((pring->prt[i].rctl == fch_r_ctl) &&
2748 (pring->prt[i].type == fch_type)) {
2749 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2750 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2751 (phba, pring, saveq);
2759 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2760 * @phba: Pointer to HBA context object.
2761 * @pring: Pointer to driver SLI ring object.
2762 * @saveq: Pointer to the unsolicited iocb.
2764 * This function is called with no lock held by the ring event handler
2765 * when there is an unsolicited iocb posted to the response ring by the
2766 * firmware. This function gets the buffer associated with the iocbs
2767 * and calls the event handler for the ring. This function handles both
2768 * qring buffers and hbq buffers.
2769 * When the function returns 1 the caller can free the iocb object otherwise
2770 * upper layer functions will free the iocb objects.
2773 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2774 struct lpfc_iocbq *saveq)
2778 uint32_t Rctl, Type;
2779 struct lpfc_iocbq *iocbq;
2780 struct lpfc_dmabuf *dmzbuf;
2782 irsp = &(saveq->iocb);
2784 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2785 if (pring->lpfc_sli_rcv_async_status)
2786 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2788 lpfc_printf_log(phba,
2791 "0316 Ring %d handler: unexpected "
2792 "ASYNC_STATUS iocb received evt_code "
2795 irsp->un.asyncstat.evt_code);
2799 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2800 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2801 if (irsp->ulpBdeCount > 0) {
2802 dmzbuf = lpfc_sli_get_buff(phba, pring,
2803 irsp->un.ulpWord[3]);
2804 lpfc_in_buf_free(phba, dmzbuf);
2807 if (irsp->ulpBdeCount > 1) {
2808 dmzbuf = lpfc_sli_get_buff(phba, pring,
2809 irsp->unsli3.sli3Words[3]);
2810 lpfc_in_buf_free(phba, dmzbuf);
2813 if (irsp->ulpBdeCount > 2) {
2814 dmzbuf = lpfc_sli_get_buff(phba, pring,
2815 irsp->unsli3.sli3Words[7]);
2816 lpfc_in_buf_free(phba, dmzbuf);
2822 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2823 if (irsp->ulpBdeCount != 0) {
2824 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2825 irsp->un.ulpWord[3]);
2826 if (!saveq->context2)
2827 lpfc_printf_log(phba,
2830 "0341 Ring %d Cannot find buffer for "
2831 "an unsolicited iocb. tag 0x%x\n",
2833 irsp->un.ulpWord[3]);
2835 if (irsp->ulpBdeCount == 2) {
2836 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2837 irsp->unsli3.sli3Words[7]);
2838 if (!saveq->context3)
2839 lpfc_printf_log(phba,
2842 "0342 Ring %d Cannot find buffer for an"
2843 " unsolicited iocb. tag 0x%x\n",
2845 irsp->unsli3.sli3Words[7]);
2847 list_for_each_entry(iocbq, &saveq->list, list) {
2848 irsp = &(iocbq->iocb);
2849 if (irsp->ulpBdeCount != 0) {
2850 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2851 irsp->un.ulpWord[3]);
2852 if (!iocbq->context2)
2853 lpfc_printf_log(phba,
2856 "0343 Ring %d Cannot find "
2857 "buffer for an unsolicited iocb"
2858 ". tag 0x%x\n", pring->ringno,
2859 irsp->un.ulpWord[3]);
2861 if (irsp->ulpBdeCount == 2) {
2862 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2863 irsp->unsli3.sli3Words[7]);
2864 if (!iocbq->context3)
2865 lpfc_printf_log(phba,
2868 "0344 Ring %d Cannot find "
2869 "buffer for an unsolicited "
2872 irsp->unsli3.sli3Words[7]);
2876 if (irsp->ulpBdeCount != 0 &&
2877 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2878 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2881 /* search continue save q for same XRI */
2882 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2883 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2884 saveq->iocb.unsli3.rcvsli3.ox_id) {
2885 list_add_tail(&saveq->list, &iocbq->list);
2891 list_add_tail(&saveq->clist,
2892 &pring->iocb_continue_saveq);
2893 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2894 list_del_init(&iocbq->clist);
2896 irsp = &(saveq->iocb);
2900 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2901 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2902 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2903 Rctl = FC_RCTL_ELS_REQ;
2906 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2907 Rctl = w5p->hcsw.Rctl;
2908 Type = w5p->hcsw.Type;
2910 /* Firmware Workaround */
2911 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2912 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2913 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2914 Rctl = FC_RCTL_ELS_REQ;
2916 w5p->hcsw.Rctl = Rctl;
2917 w5p->hcsw.Type = Type;
2921 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2922 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2923 "0313 Ring %d handler: unexpected Rctl x%x "
2924 "Type x%x received\n",
2925 pring->ringno, Rctl, Type);
2931 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2932 * @phba: Pointer to HBA context object.
2933 * @pring: Pointer to driver SLI ring object.
2934 * @prspiocb: Pointer to response iocb object.
2936 * This function looks up the iocb_lookup table to get the command iocb
2937 * corresponding to the given response iocb using the iotag of the
2938 * response iocb. This function is called with the hbalock held
2939 * for sli3 devices or the ring_lock for sli4 devices.
2940 * This function returns the command iocb object if it finds the command
2941 * iocb else returns NULL.
2943 static struct lpfc_iocbq *
2944 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2945 struct lpfc_sli_ring *pring,
2946 struct lpfc_iocbq *prspiocb)
2948 struct lpfc_iocbq *cmd_iocb = NULL;
2950 lockdep_assert_held(&phba->hbalock);
2952 iotag = prspiocb->iocb.ulpIoTag;
2954 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2955 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2956 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2957 /* remove from txcmpl queue list */
2958 list_del_init(&cmd_iocb->list);
2959 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2964 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2965 "0317 iotag x%x is out of "
2966 "range: max iotag x%x wd0 x%x\n",
2967 iotag, phba->sli.last_iotag,
2968 *(((uint32_t *) &prspiocb->iocb) + 7));
2973 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2974 * @phba: Pointer to HBA context object.
2975 * @pring: Pointer to driver SLI ring object.
2978 * This function looks up the iocb_lookup table to get the command iocb
2979 * corresponding to the given iotag. This function is called with the
2981 * This function returns the command iocb object if it finds the command
2982 * iocb else returns NULL.
2984 static struct lpfc_iocbq *
2985 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2986 struct lpfc_sli_ring *pring, uint16_t iotag)
2988 struct lpfc_iocbq *cmd_iocb = NULL;
2990 lockdep_assert_held(&phba->hbalock);
2991 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2992 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2993 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2994 /* remove from txcmpl queue list */
2995 list_del_init(&cmd_iocb->list);
2996 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3001 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3002 "0372 iotag x%x lookup error: max iotag (x%x) "
3004 iotag, phba->sli.last_iotag,
3005 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
3010 * lpfc_sli_process_sol_iocb - process solicited iocb completion
3011 * @phba: Pointer to HBA context object.
3012 * @pring: Pointer to driver SLI ring object.
3013 * @saveq: Pointer to the response iocb to be processed.
3015 * This function is called by the ring event handler for non-fcp
3016 * rings when there is a new response iocb in the response ring.
3017 * The caller is not required to hold any locks. This function
3018 * gets the command iocb associated with the response iocb and
3019 * calls the completion handler for the command iocb. If there
3020 * is no completion handler, the function will free the resources
3021 * associated with command iocb. If the response iocb is for
3022 * an already aborted command iocb, the status of the completion
3023 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
3024 * This function always returns 1.
3027 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3028 struct lpfc_iocbq *saveq)
3030 struct lpfc_iocbq *cmdiocbp;
3032 unsigned long iflag;
3034 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
3035 if (phba->sli_rev == LPFC_SLI_REV4)
3036 spin_lock_irqsave(&pring->ring_lock, iflag);
3038 spin_lock_irqsave(&phba->hbalock, iflag);
3039 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
3040 if (phba->sli_rev == LPFC_SLI_REV4)
3041 spin_unlock_irqrestore(&pring->ring_lock, iflag);
3043 spin_unlock_irqrestore(&phba->hbalock, iflag);
3046 if (cmdiocbp->iocb_cmpl) {
3048 * If an ELS command failed send an event to mgmt
3051 if (saveq->iocb.ulpStatus &&
3052 (pring->ringno == LPFC_ELS_RING) &&
3053 (cmdiocbp->iocb.ulpCommand ==
3054 CMD_ELS_REQUEST64_CR))
3055 lpfc_send_els_failure_event(phba,
3059 * Post all ELS completions to the worker thread.
3060 * All other are passed to the completion callback.
3062 if (pring->ringno == LPFC_ELS_RING) {
3063 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3064 (cmdiocbp->iocb_flag &
3065 LPFC_DRIVER_ABORTED)) {
3066 spin_lock_irqsave(&phba->hbalock,
3068 cmdiocbp->iocb_flag &=
3069 ~LPFC_DRIVER_ABORTED;
3070 spin_unlock_irqrestore(&phba->hbalock,
3072 saveq->iocb.ulpStatus =
3073 IOSTAT_LOCAL_REJECT;
3074 saveq->iocb.un.ulpWord[4] =
3077 /* Firmware could still be in progress
3078 * of DMAing payload, so don't free data
3079 * buffer till after a hbeat.
3081 spin_lock_irqsave(&phba->hbalock,
3083 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
3084 spin_unlock_irqrestore(&phba->hbalock,
3087 if (phba->sli_rev == LPFC_SLI_REV4) {
3088 if (saveq->iocb_flag &
3089 LPFC_EXCHANGE_BUSY) {
3090 /* Set cmdiocb flag for the
3091 * exchange busy so sgl (xri)
3092 * will not be released until
3093 * the abort xri is received
3097 &phba->hbalock, iflag);
3098 cmdiocbp->iocb_flag |=
3100 spin_unlock_irqrestore(
3101 &phba->hbalock, iflag);
3103 if (cmdiocbp->iocb_flag &
3104 LPFC_DRIVER_ABORTED) {
3106 * Clear LPFC_DRIVER_ABORTED
3107 * bit in case it was driver
3111 &phba->hbalock, iflag);
3112 cmdiocbp->iocb_flag &=
3113 ~LPFC_DRIVER_ABORTED;
3114 spin_unlock_irqrestore(
3115 &phba->hbalock, iflag);
3116 cmdiocbp->iocb.ulpStatus =
3117 IOSTAT_LOCAL_REJECT;
3118 cmdiocbp->iocb.un.ulpWord[4] =
3119 IOERR_ABORT_REQUESTED;
3121 * For SLI4, irsiocb contains
3122 * NO_XRI in sli_xritag, it
3123 * shall not affect releasing
3124 * sgl (xri) process.
3126 saveq->iocb.ulpStatus =
3127 IOSTAT_LOCAL_REJECT;
3128 saveq->iocb.un.ulpWord[4] =
3131 &phba->hbalock, iflag);
3133 LPFC_DELAY_MEM_FREE;
3134 spin_unlock_irqrestore(
3135 &phba->hbalock, iflag);
3139 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
3141 lpfc_sli_release_iocbq(phba, cmdiocbp);
3144 * Unknown initiating command based on the response iotag.
3145 * This could be the case on the ELS ring because of
3148 if (pring->ringno != LPFC_ELS_RING) {
3150 * Ring <ringno> handler: unexpected completion IoTag
3153 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3154 "0322 Ring %d handler: "
3155 "unexpected completion IoTag x%x "
3156 "Data: x%x x%x x%x x%x\n",
3158 saveq->iocb.ulpIoTag,
3159 saveq->iocb.ulpStatus,
3160 saveq->iocb.un.ulpWord[4],
3161 saveq->iocb.ulpCommand,
3162 saveq->iocb.ulpContext);
3170 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
3171 * @phba: Pointer to HBA context object.
3172 * @pring: Pointer to driver SLI ring object.
3174 * This function is called from the iocb ring event handlers when
3175 * put pointer is ahead of the get pointer for a ring. This function signal
3176 * an error attention condition to the worker thread and the worker
3177 * thread will transition the HBA to offline state.
3180 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3182 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3184 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3185 * rsp ring <portRspMax>
3187 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3188 "0312 Ring %d handler: portRspPut %d "
3189 "is bigger than rsp ring %d\n",
3190 pring->ringno, le32_to_cpu(pgp->rspPutInx),
3191 pring->sli.sli3.numRiocb);
3193 phba->link_state = LPFC_HBA_ERROR;
3196 * All error attention handlers are posted to
3199 phba->work_ha |= HA_ERATT;
3200 phba->work_hs = HS_FFER3;
3202 lpfc_worker_wake_up(phba);
3208 * lpfc_poll_eratt - Error attention polling timer timeout handler
3209 * @ptr: Pointer to address of HBA context object.
3211 * This function is invoked by the Error Attention polling timer when the
3212 * timer times out. It will check the SLI Error Attention register for
3213 * possible attention events. If so, it will post an Error Attention event
3214 * and wake up worker thread to process it. Otherwise, it will set up the
3215 * Error Attention polling timer for the next poll.
3217 void lpfc_poll_eratt(struct timer_list *t)
3219 struct lpfc_hba *phba;
3221 uint64_t sli_intr, cnt;
3223 phba = from_timer(phba, t, eratt_poll);
3225 /* Here we will also keep track of interrupts per sec of the hba */
3226 sli_intr = phba->sli.slistat.sli_intr;
3228 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3229 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3232 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3234 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3235 do_div(cnt, phba->eratt_poll_interval);
3236 phba->sli.slistat.sli_ips = cnt;
3238 phba->sli.slistat.sli_prev_intr = sli_intr;
3240 /* Check chip HA register for error event */
3241 eratt = lpfc_sli_check_eratt(phba);
3244 /* Tell the worker thread there is work to do */
3245 lpfc_worker_wake_up(phba);
3247 /* Restart the timer for next eratt poll */
3248 mod_timer(&phba->eratt_poll,
3250 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3256 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3257 * @phba: Pointer to HBA context object.
3258 * @pring: Pointer to driver SLI ring object.
3259 * @mask: Host attention register mask for this ring.
3261 * This function is called from the interrupt context when there is a ring
3262 * event for the fcp ring. The caller does not hold any lock.
3263 * The function processes each response iocb in the response ring until it
3264 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3265 * LE bit set. The function will call the completion handler of the command iocb
3266 * if the response iocb indicates a completion for a command iocb or it is
3267 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3268 * function if this is an unsolicited iocb.
3269 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3270 * to check it explicitly.
3273 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3274 struct lpfc_sli_ring *pring, uint32_t mask)
3276 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3277 IOCB_t *irsp = NULL;
3278 IOCB_t *entry = NULL;
3279 struct lpfc_iocbq *cmdiocbq = NULL;
3280 struct lpfc_iocbq rspiocbq;
3282 uint32_t portRspPut, portRspMax;
3284 lpfc_iocb_type type;
3285 unsigned long iflag;
3286 uint32_t rsp_cmpl = 0;
3288 spin_lock_irqsave(&phba->hbalock, iflag);
3289 pring->stats.iocb_event++;
3292 * The next available response entry should never exceed the maximum
3293 * entries. If it does, treat it as an adapter hardware error.
3295 portRspMax = pring->sli.sli3.numRiocb;
3296 portRspPut = le32_to_cpu(pgp->rspPutInx);
3297 if (unlikely(portRspPut >= portRspMax)) {
3298 lpfc_sli_rsp_pointers_error(phba, pring);
3299 spin_unlock_irqrestore(&phba->hbalock, iflag);
3302 if (phba->fcp_ring_in_use) {
3303 spin_unlock_irqrestore(&phba->hbalock, iflag);
3306 phba->fcp_ring_in_use = 1;
3309 while (pring->sli.sli3.rspidx != portRspPut) {
3311 * Fetch an entry off the ring and copy it into a local data
3312 * structure. The copy involves a byte-swap since the
3313 * network byte order and pci byte orders are different.
3315 entry = lpfc_resp_iocb(phba, pring);
3316 phba->last_completion_time = jiffies;
3318 if (++pring->sli.sli3.rspidx >= portRspMax)
3319 pring->sli.sli3.rspidx = 0;
3321 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3322 (uint32_t *) &rspiocbq.iocb,
3323 phba->iocb_rsp_size);
3324 INIT_LIST_HEAD(&(rspiocbq.list));
3325 irsp = &rspiocbq.iocb;
3327 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3328 pring->stats.iocb_rsp++;
3331 if (unlikely(irsp->ulpStatus)) {
3333 * If resource errors reported from HBA, reduce
3334 * queuedepths of the SCSI device.
3336 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3337 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3338 IOERR_NO_RESOURCES)) {
3339 spin_unlock_irqrestore(&phba->hbalock, iflag);
3340 phba->lpfc_rampdown_queue_depth(phba);
3341 spin_lock_irqsave(&phba->hbalock, iflag);
3344 /* Rsp ring <ringno> error: IOCB */
3345 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3346 "0336 Rsp Ring %d error: IOCB Data: "
3347 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3349 irsp->un.ulpWord[0],
3350 irsp->un.ulpWord[1],
3351 irsp->un.ulpWord[2],
3352 irsp->un.ulpWord[3],
3353 irsp->un.ulpWord[4],
3354 irsp->un.ulpWord[5],
3355 *(uint32_t *)&irsp->un1,
3356 *((uint32_t *)&irsp->un1 + 1));
3360 case LPFC_ABORT_IOCB:
3363 * Idle exchange closed via ABTS from port. No iocb
3364 * resources need to be recovered.
3366 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3367 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3368 "0333 IOCB cmd 0x%x"
3369 " processed. Skipping"
3375 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3377 if (unlikely(!cmdiocbq))
3379 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3380 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3381 if (cmdiocbq->iocb_cmpl) {
3382 spin_unlock_irqrestore(&phba->hbalock, iflag);
3383 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3385 spin_lock_irqsave(&phba->hbalock, iflag);
3388 case LPFC_UNSOL_IOCB:
3389 spin_unlock_irqrestore(&phba->hbalock, iflag);
3390 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3391 spin_lock_irqsave(&phba->hbalock, iflag);
3394 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3395 char adaptermsg[LPFC_MAX_ADPTMSG];
3396 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3397 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3399 dev_warn(&((phba->pcidev)->dev),
3401 phba->brd_no, adaptermsg);
3403 /* Unknown IOCB command */
3404 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3405 "0334 Unknown IOCB command "
3406 "Data: x%x, x%x x%x x%x x%x\n",
3407 type, irsp->ulpCommand,
3416 * The response IOCB has been processed. Update the ring
3417 * pointer in SLIM. If the port response put pointer has not
3418 * been updated, sync the pgp->rspPutInx and fetch the new port
3419 * response put pointer.
3421 writel(pring->sli.sli3.rspidx,
3422 &phba->host_gp[pring->ringno].rspGetInx);
3424 if (pring->sli.sli3.rspidx == portRspPut)
3425 portRspPut = le32_to_cpu(pgp->rspPutInx);
3428 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3429 pring->stats.iocb_rsp_full++;
3430 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3431 writel(status, phba->CAregaddr);
3432 readl(phba->CAregaddr);
3434 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3435 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3436 pring->stats.iocb_cmd_empty++;
3438 /* Force update of the local copy of cmdGetInx */
3439 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3440 lpfc_sli_resume_iocb(phba, pring);
3442 if ((pring->lpfc_sli_cmd_available))
3443 (pring->lpfc_sli_cmd_available) (phba, pring);
3447 phba->fcp_ring_in_use = 0;
3448 spin_unlock_irqrestore(&phba->hbalock, iflag);
3453 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3454 * @phba: Pointer to HBA context object.
3455 * @pring: Pointer to driver SLI ring object.
3456 * @rspiocbp: Pointer to driver response IOCB object.
3458 * This function is called from the worker thread when there is a slow-path
3459 * response IOCB to process. This function chains all the response iocbs until
3460 * seeing the iocb with the LE bit set. The function will call
3461 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3462 * completion of a command iocb. The function will call the
3463 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3464 * The function frees the resources or calls the completion handler if this
3465 * iocb is an abort completion. The function returns NULL when the response
3466 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3467 * this function shall chain the iocb on to the iocb_continueq and return the
3468 * response iocb passed in.
3470 static struct lpfc_iocbq *
3471 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3472 struct lpfc_iocbq *rspiocbp)
3474 struct lpfc_iocbq *saveq;
3475 struct lpfc_iocbq *cmdiocbp;
3476 struct lpfc_iocbq *next_iocb;
3477 IOCB_t *irsp = NULL;
3478 uint32_t free_saveq;
3479 uint8_t iocb_cmd_type;
3480 lpfc_iocb_type type;
3481 unsigned long iflag;
3484 spin_lock_irqsave(&phba->hbalock, iflag);
3485 /* First add the response iocb to the countinueq list */
3486 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3487 pring->iocb_continueq_cnt++;
3489 /* Now, determine whether the list is completed for processing */
3490 irsp = &rspiocbp->iocb;
3493 * By default, the driver expects to free all resources
3494 * associated with this iocb completion.
3497 saveq = list_get_first(&pring->iocb_continueq,
3498 struct lpfc_iocbq, list);
3499 irsp = &(saveq->iocb);
3500 list_del_init(&pring->iocb_continueq);
3501 pring->iocb_continueq_cnt = 0;
3503 pring->stats.iocb_rsp++;
3506 * If resource errors reported from HBA, reduce
3507 * queuedepths of the SCSI device.
3509 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3510 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3511 IOERR_NO_RESOURCES)) {
3512 spin_unlock_irqrestore(&phba->hbalock, iflag);
3513 phba->lpfc_rampdown_queue_depth(phba);
3514 spin_lock_irqsave(&phba->hbalock, iflag);
3517 if (irsp->ulpStatus) {
3518 /* Rsp ring <ringno> error: IOCB */
3519 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3520 "0328 Rsp Ring %d error: "
3525 "x%x x%x x%x x%x\n",
3527 irsp->un.ulpWord[0],
3528 irsp->un.ulpWord[1],
3529 irsp->un.ulpWord[2],
3530 irsp->un.ulpWord[3],
3531 irsp->un.ulpWord[4],
3532 irsp->un.ulpWord[5],
3533 *(((uint32_t *) irsp) + 6),
3534 *(((uint32_t *) irsp) + 7),
3535 *(((uint32_t *) irsp) + 8),
3536 *(((uint32_t *) irsp) + 9),
3537 *(((uint32_t *) irsp) + 10),
3538 *(((uint32_t *) irsp) + 11),
3539 *(((uint32_t *) irsp) + 12),
3540 *(((uint32_t *) irsp) + 13),
3541 *(((uint32_t *) irsp) + 14),
3542 *(((uint32_t *) irsp) + 15));
3546 * Fetch the IOCB command type and call the correct completion
3547 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3548 * get freed back to the lpfc_iocb_list by the discovery
3551 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3552 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3555 spin_unlock_irqrestore(&phba->hbalock, iflag);
3556 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3557 spin_lock_irqsave(&phba->hbalock, iflag);
3560 case LPFC_UNSOL_IOCB:
3561 spin_unlock_irqrestore(&phba->hbalock, iflag);
3562 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3563 spin_lock_irqsave(&phba->hbalock, iflag);
3568 case LPFC_ABORT_IOCB:
3570 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3571 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3574 /* Call the specified completion routine */
3575 if (cmdiocbp->iocb_cmpl) {
3576 spin_unlock_irqrestore(&phba->hbalock,
3578 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3580 spin_lock_irqsave(&phba->hbalock,
3583 __lpfc_sli_release_iocbq(phba,
3588 case LPFC_UNKNOWN_IOCB:
3589 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3590 char adaptermsg[LPFC_MAX_ADPTMSG];
3591 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3592 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3594 dev_warn(&((phba->pcidev)->dev),
3596 phba->brd_no, adaptermsg);
3598 /* Unknown IOCB command */
3599 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3600 "0335 Unknown IOCB "
3601 "command Data: x%x "
3612 list_for_each_entry_safe(rspiocbp, next_iocb,
3613 &saveq->list, list) {
3614 list_del_init(&rspiocbp->list);
3615 __lpfc_sli_release_iocbq(phba, rspiocbp);
3617 __lpfc_sli_release_iocbq(phba, saveq);
3621 spin_unlock_irqrestore(&phba->hbalock, iflag);
3626 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3627 * @phba: Pointer to HBA context object.
3628 * @pring: Pointer to driver SLI ring object.
3629 * @mask: Host attention register mask for this ring.
3631 * This routine wraps the actual slow_ring event process routine from the
3632 * API jump table function pointer from the lpfc_hba struct.
3635 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3636 struct lpfc_sli_ring *pring, uint32_t mask)
3638 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3642 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3643 * @phba: Pointer to HBA context object.
3644 * @pring: Pointer to driver SLI ring object.
3645 * @mask: Host attention register mask for this ring.
3647 * This function is called from the worker thread when there is a ring event
3648 * for non-fcp rings. The caller does not hold any lock. The function will
3649 * remove each response iocb in the response ring and calls the handle
3650 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3653 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3654 struct lpfc_sli_ring *pring, uint32_t mask)
3656 struct lpfc_pgp *pgp;
3658 IOCB_t *irsp = NULL;
3659 struct lpfc_iocbq *rspiocbp = NULL;
3660 uint32_t portRspPut, portRspMax;
3661 unsigned long iflag;
3664 pgp = &phba->port_gp[pring->ringno];
3665 spin_lock_irqsave(&phba->hbalock, iflag);
3666 pring->stats.iocb_event++;
3669 * The next available response entry should never exceed the maximum
3670 * entries. If it does, treat it as an adapter hardware error.
3672 portRspMax = pring->sli.sli3.numRiocb;
3673 portRspPut = le32_to_cpu(pgp->rspPutInx);
3674 if (portRspPut >= portRspMax) {
3676 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3677 * rsp ring <portRspMax>
3679 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3680 "0303 Ring %d handler: portRspPut %d "
3681 "is bigger than rsp ring %d\n",
3682 pring->ringno, portRspPut, portRspMax);
3684 phba->link_state = LPFC_HBA_ERROR;
3685 spin_unlock_irqrestore(&phba->hbalock, iflag);
3687 phba->work_hs = HS_FFER3;
3688 lpfc_handle_eratt(phba);
3694 while (pring->sli.sli3.rspidx != portRspPut) {
3696 * Build a completion list and call the appropriate handler.
3697 * The process is to get the next available response iocb, get
3698 * a free iocb from the list, copy the response data into the
3699 * free iocb, insert to the continuation list, and update the
3700 * next response index to slim. This process makes response
3701 * iocb's in the ring available to DMA as fast as possible but
3702 * pays a penalty for a copy operation. Since the iocb is
3703 * only 32 bytes, this penalty is considered small relative to
3704 * the PCI reads for register values and a slim write. When
3705 * the ulpLe field is set, the entire Command has been
3708 entry = lpfc_resp_iocb(phba, pring);
3710 phba->last_completion_time = jiffies;
3711 rspiocbp = __lpfc_sli_get_iocbq(phba);
3712 if (rspiocbp == NULL) {
3713 printk(KERN_ERR "%s: out of buffers! Failing "
3714 "completion.\n", __func__);
3718 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3719 phba->iocb_rsp_size);
3720 irsp = &rspiocbp->iocb;
3722 if (++pring->sli.sli3.rspidx >= portRspMax)
3723 pring->sli.sli3.rspidx = 0;
3725 if (pring->ringno == LPFC_ELS_RING) {
3726 lpfc_debugfs_slow_ring_trc(phba,
3727 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3728 *(((uint32_t *) irsp) + 4),
3729 *(((uint32_t *) irsp) + 6),
3730 *(((uint32_t *) irsp) + 7));
3733 writel(pring->sli.sli3.rspidx,
3734 &phba->host_gp[pring->ringno].rspGetInx);
3736 spin_unlock_irqrestore(&phba->hbalock, iflag);
3737 /* Handle the response IOCB */
3738 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3739 spin_lock_irqsave(&phba->hbalock, iflag);
3742 * If the port response put pointer has not been updated, sync
3743 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3744 * response put pointer.
3746 if (pring->sli.sli3.rspidx == portRspPut) {
3747 portRspPut = le32_to_cpu(pgp->rspPutInx);
3749 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3751 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3752 /* At least one response entry has been freed */
3753 pring->stats.iocb_rsp_full++;
3754 /* SET RxRE_RSP in Chip Att register */
3755 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3756 writel(status, phba->CAregaddr);
3757 readl(phba->CAregaddr); /* flush */
3759 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3760 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3761 pring->stats.iocb_cmd_empty++;
3763 /* Force update of the local copy of cmdGetInx */
3764 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3765 lpfc_sli_resume_iocb(phba, pring);
3767 if ((pring->lpfc_sli_cmd_available))
3768 (pring->lpfc_sli_cmd_available) (phba, pring);
3772 spin_unlock_irqrestore(&phba->hbalock, iflag);
3777 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3778 * @phba: Pointer to HBA context object.
3779 * @pring: Pointer to driver SLI ring object.
3780 * @mask: Host attention register mask for this ring.
3782 * This function is called from the worker thread when there is a pending
3783 * ELS response iocb on the driver internal slow-path response iocb worker
3784 * queue. The caller does not hold any lock. The function will remove each
3785 * response iocb from the response worker queue and calls the handle
3786 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3789 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3790 struct lpfc_sli_ring *pring, uint32_t mask)
3792 struct lpfc_iocbq *irspiocbq;
3793 struct hbq_dmabuf *dmabuf;
3794 struct lpfc_cq_event *cq_event;
3795 unsigned long iflag;
3798 spin_lock_irqsave(&phba->hbalock, iflag);
3799 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3800 spin_unlock_irqrestore(&phba->hbalock, iflag);
3801 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3802 /* Get the response iocb from the head of work queue */
3803 spin_lock_irqsave(&phba->hbalock, iflag);
3804 list_remove_head(&phba->sli4_hba.sp_queue_event,
3805 cq_event, struct lpfc_cq_event, list);
3806 spin_unlock_irqrestore(&phba->hbalock, iflag);
3808 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3809 case CQE_CODE_COMPL_WQE:
3810 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3812 /* Translate ELS WCQE to response IOCBQ */
3813 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3816 lpfc_sli_sp_handle_rspiocb(phba, pring,
3820 case CQE_CODE_RECEIVE:
3821 case CQE_CODE_RECEIVE_V1:
3822 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3824 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3831 /* Limit the number of events to 64 to avoid soft lockups */
3838 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3839 * @phba: Pointer to HBA context object.
3840 * @pring: Pointer to driver SLI ring object.
3842 * This function aborts all iocbs in the given ring and frees all the iocb
3843 * objects in txq. This function issues an abort iocb for all the iocb commands
3844 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3845 * the return of this function. The caller is not required to hold any locks.
3848 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3850 LIST_HEAD(completions);
3851 struct lpfc_iocbq *iocb, *next_iocb;
3853 if (pring->ringno == LPFC_ELS_RING) {
3854 lpfc_fabric_abort_hba(phba);
3857 /* Error everything on txq and txcmplq
3860 if (phba->sli_rev >= LPFC_SLI_REV4) {
3861 spin_lock_irq(&pring->ring_lock);
3862 list_splice_init(&pring->txq, &completions);
3864 spin_unlock_irq(&pring->ring_lock);
3866 spin_lock_irq(&phba->hbalock);
3867 /* Next issue ABTS for everything on the txcmplq */
3868 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3869 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3870 spin_unlock_irq(&phba->hbalock);
3872 spin_lock_irq(&phba->hbalock);
3873 list_splice_init(&pring->txq, &completions);
3876 /* Next issue ABTS for everything on the txcmplq */
3877 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3878 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3879 spin_unlock_irq(&phba->hbalock);
3882 /* Cancel all the IOCBs from the completions list */
3883 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3888 * lpfc_sli_abort_wqe_ring - Abort all iocbs in the ring
3889 * @phba: Pointer to HBA context object.
3890 * @pring: Pointer to driver SLI ring object.
3892 * This function aborts all iocbs in the given ring and frees all the iocb
3893 * objects in txq. This function issues an abort iocb for all the iocb commands
3894 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3895 * the return of this function. The caller is not required to hold any locks.
3898 lpfc_sli_abort_wqe_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3900 LIST_HEAD(completions);
3901 struct lpfc_iocbq *iocb, *next_iocb;
3903 if (pring->ringno == LPFC_ELS_RING)
3904 lpfc_fabric_abort_hba(phba);
3906 spin_lock_irq(&phba->hbalock);
3907 /* Next issue ABTS for everything on the txcmplq */
3908 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3909 lpfc_sli4_abort_nvme_io(phba, pring, iocb);
3910 spin_unlock_irq(&phba->hbalock);
3915 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3916 * @phba: Pointer to HBA context object.
3917 * @pring: Pointer to driver SLI ring object.
3919 * This function aborts all iocbs in FCP rings and frees all the iocb
3920 * objects in txq. This function issues an abort iocb for all the iocb commands
3921 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3922 * the return of this function. The caller is not required to hold any locks.
3925 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3927 struct lpfc_sli *psli = &phba->sli;
3928 struct lpfc_sli_ring *pring;
3931 /* Look on all the FCP Rings for the iotag */
3932 if (phba->sli_rev >= LPFC_SLI_REV4) {
3933 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3934 pring = phba->sli4_hba.fcp_wq[i]->pring;
3935 lpfc_sli_abort_iocb_ring(phba, pring);
3938 pring = &psli->sli3_ring[LPFC_FCP_RING];
3939 lpfc_sli_abort_iocb_ring(phba, pring);
3944 * lpfc_sli_abort_nvme_rings - Abort all wqes in all NVME rings
3945 * @phba: Pointer to HBA context object.
3947 * This function aborts all wqes in NVME rings. This function issues an
3948 * abort wqe for all the outstanding IO commands in txcmplq. The iocbs in
3949 * the txcmplq is not guaranteed to complete before the return of this
3950 * function. The caller is not required to hold any locks.
3953 lpfc_sli_abort_nvme_rings(struct lpfc_hba *phba)
3955 struct lpfc_sli_ring *pring;
3958 if (phba->sli_rev < LPFC_SLI_REV4)
3961 /* Abort all IO on each NVME ring. */
3962 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
3963 pring = phba->sli4_hba.nvme_wq[i]->pring;
3964 lpfc_sli_abort_wqe_ring(phba, pring);
3970 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3971 * @phba: Pointer to HBA context object.
3973 * This function flushes all iocbs in the fcp ring and frees all the iocb
3974 * objects in txq and txcmplq. This function will not issue abort iocbs
3975 * for all the iocb commands in txcmplq, they will just be returned with
3976 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3977 * slot has been permanently disabled.
3980 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3984 struct lpfc_sli *psli = &phba->sli;
3985 struct lpfc_sli_ring *pring;
3987 struct lpfc_iocbq *piocb, *next_iocb;
3989 spin_lock_irq(&phba->hbalock);
3990 /* Indicate the I/O queues are flushed */
3991 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3992 spin_unlock_irq(&phba->hbalock);
3994 /* Look on all the FCP Rings for the iotag */
3995 if (phba->sli_rev >= LPFC_SLI_REV4) {
3996 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3997 pring = phba->sli4_hba.fcp_wq[i]->pring;
3999 spin_lock_irq(&pring->ring_lock);
4000 /* Retrieve everything on txq */
4001 list_splice_init(&pring->txq, &txq);
4002 list_for_each_entry_safe(piocb, next_iocb,
4003 &pring->txcmplq, list)
4004 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4005 /* Retrieve everything on the txcmplq */
4006 list_splice_init(&pring->txcmplq, &txcmplq);
4008 pring->txcmplq_cnt = 0;
4009 spin_unlock_irq(&pring->ring_lock);
4012 lpfc_sli_cancel_iocbs(phba, &txq,
4013 IOSTAT_LOCAL_REJECT,
4015 /* Flush the txcmpq */
4016 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4017 IOSTAT_LOCAL_REJECT,
4021 pring = &psli->sli3_ring[LPFC_FCP_RING];
4023 spin_lock_irq(&phba->hbalock);
4024 /* Retrieve everything on txq */
4025 list_splice_init(&pring->txq, &txq);
4026 list_for_each_entry_safe(piocb, next_iocb,
4027 &pring->txcmplq, list)
4028 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4029 /* Retrieve everything on the txcmplq */
4030 list_splice_init(&pring->txcmplq, &txcmplq);
4032 pring->txcmplq_cnt = 0;
4033 spin_unlock_irq(&phba->hbalock);
4036 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
4038 /* Flush the txcmpq */
4039 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
4045 * lpfc_sli_flush_nvme_rings - flush all wqes in the nvme rings
4046 * @phba: Pointer to HBA context object.
4048 * This function flushes all wqes in the nvme rings and frees all resources
4049 * in the txcmplq. This function does not issue abort wqes for the IO
4050 * commands in txcmplq, they will just be returned with
4051 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
4052 * slot has been permanently disabled.
4055 lpfc_sli_flush_nvme_rings(struct lpfc_hba *phba)
4058 struct lpfc_sli_ring *pring;
4060 struct lpfc_iocbq *piocb, *next_iocb;
4062 if (phba->sli_rev < LPFC_SLI_REV4)
4065 /* Hint to other driver operations that a flush is in progress. */
4066 spin_lock_irq(&phba->hbalock);
4067 phba->hba_flag |= HBA_NVME_IOQ_FLUSH;
4068 spin_unlock_irq(&phba->hbalock);
4070 /* Cycle through all NVME rings and complete each IO with
4071 * a local driver reason code. This is a flush so no
4072 * abort exchange to FW.
4074 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
4075 pring = phba->sli4_hba.nvme_wq[i]->pring;
4077 spin_lock_irq(&pring->ring_lock);
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);
4083 pring->txcmplq_cnt = 0;
4084 spin_unlock_irq(&pring->ring_lock);
4086 /* Flush the txcmpq &&&PAE */
4087 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4088 IOSTAT_LOCAL_REJECT,
4094 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
4095 * @phba: Pointer to HBA context object.
4096 * @mask: Bit mask to be checked.
4098 * This function reads the host status register and compares
4099 * with the provided bit mask to check if HBA completed
4100 * the restart. This function will wait in a loop for the
4101 * HBA to complete restart. If the HBA does not restart within
4102 * 15 iterations, the function will reset the HBA again. The
4103 * function returns 1 when HBA fail to restart otherwise returns
4107 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
4113 /* Read the HBA Host Status Register */
4114 if (lpfc_readl(phba->HSregaddr, &status))
4118 * Check status register every 100ms for 5 retries, then every
4119 * 500ms for 5, then every 2.5 sec for 5, then reset board and
4120 * every 2.5 sec for 4.
4121 * Break our of the loop if errors occurred during init.
4123 while (((status & mask) != mask) &&
4124 !(status & HS_FFERM) &&
4136 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4137 lpfc_sli_brdrestart(phba);
4139 /* Read the HBA Host Status Register */
4140 if (lpfc_readl(phba->HSregaddr, &status)) {
4146 /* Check to see if any errors occurred during init */
4147 if ((status & HS_FFERM) || (i >= 20)) {
4148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4149 "2751 Adapter failed to restart, "
4150 "status reg x%x, FW Data: A8 x%x AC x%x\n",
4152 readl(phba->MBslimaddr + 0xa8),
4153 readl(phba->MBslimaddr + 0xac));
4154 phba->link_state = LPFC_HBA_ERROR;
4162 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
4163 * @phba: Pointer to HBA context object.
4164 * @mask: Bit mask to be checked.
4166 * This function checks the host status register to check if HBA is
4167 * ready. This function will wait in a loop for the HBA to be ready
4168 * If the HBA is not ready , the function will will reset the HBA PCI
4169 * function again. The function returns 1 when HBA fail to be ready
4170 * otherwise returns zero.
4173 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
4178 /* Read the HBA Host Status Register */
4179 status = lpfc_sli4_post_status_check(phba);
4182 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4183 lpfc_sli_brdrestart(phba);
4184 status = lpfc_sli4_post_status_check(phba);
4187 /* Check to see if any errors occurred during init */
4189 phba->link_state = LPFC_HBA_ERROR;
4192 phba->sli4_hba.intr_enable = 0;
4198 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
4199 * @phba: Pointer to HBA context object.
4200 * @mask: Bit mask to be checked.
4202 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
4203 * from the API jump table function pointer from the lpfc_hba struct.
4206 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
4208 return phba->lpfc_sli_brdready(phba, mask);
4211 #define BARRIER_TEST_PATTERN (0xdeadbeef)
4214 * lpfc_reset_barrier - Make HBA ready for HBA reset
4215 * @phba: Pointer to HBA context object.
4217 * This function is called before resetting an HBA. This function is called
4218 * with hbalock held and requests HBA to quiesce DMAs before a reset.
4220 void lpfc_reset_barrier(struct lpfc_hba *phba)
4222 uint32_t __iomem *resp_buf;
4223 uint32_t __iomem *mbox_buf;
4224 volatile uint32_t mbox;
4225 uint32_t hc_copy, ha_copy, resp_data;
4229 lockdep_assert_held(&phba->hbalock);
4231 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4232 if (hdrtype != 0x80 ||
4233 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4234 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4238 * Tell the other part of the chip to suspend temporarily all
4241 resp_buf = phba->MBslimaddr;
4243 /* Disable the error attention */
4244 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4246 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4247 readl(phba->HCregaddr); /* flush */
4248 phba->link_flag |= LS_IGNORE_ERATT;
4250 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4252 if (ha_copy & HA_ERATT) {
4253 /* Clear Chip error bit */
4254 writel(HA_ERATT, phba->HAregaddr);
4255 phba->pport->stopped = 1;
4259 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4260 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4262 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4263 mbox_buf = phba->MBslimaddr;
4264 writel(mbox, mbox_buf);
4266 for (i = 0; i < 50; i++) {
4267 if (lpfc_readl((resp_buf + 1), &resp_data))
4269 if (resp_data != ~(BARRIER_TEST_PATTERN))
4275 if (lpfc_readl((resp_buf + 1), &resp_data))
4277 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4278 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4279 phba->pport->stopped)
4285 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4287 for (i = 0; i < 500; i++) {
4288 if (lpfc_readl(resp_buf, &resp_data))
4290 if (resp_data != mbox)
4299 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4301 if (!(ha_copy & HA_ERATT))
4307 if (readl(phba->HAregaddr) & HA_ERATT) {
4308 writel(HA_ERATT, phba->HAregaddr);
4309 phba->pport->stopped = 1;
4313 phba->link_flag &= ~LS_IGNORE_ERATT;
4314 writel(hc_copy, phba->HCregaddr);
4315 readl(phba->HCregaddr); /* flush */
4319 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4320 * @phba: Pointer to HBA context object.
4322 * This function issues a kill_board mailbox command and waits for
4323 * the error attention interrupt. This function is called for stopping
4324 * the firmware processing. The caller is not required to hold any
4325 * locks. This function calls lpfc_hba_down_post function to free
4326 * any pending commands after the kill. The function will return 1 when it
4327 * fails to kill the board else will return 0.
4330 lpfc_sli_brdkill(struct lpfc_hba *phba)
4332 struct lpfc_sli *psli;
4342 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4343 "0329 Kill HBA Data: x%x x%x\n",
4344 phba->pport->port_state, psli->sli_flag);
4346 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4350 /* Disable the error attention */
4351 spin_lock_irq(&phba->hbalock);
4352 if (lpfc_readl(phba->HCregaddr, &status)) {
4353 spin_unlock_irq(&phba->hbalock);
4354 mempool_free(pmb, phba->mbox_mem_pool);
4357 status &= ~HC_ERINT_ENA;
4358 writel(status, phba->HCregaddr);
4359 readl(phba->HCregaddr); /* flush */
4360 phba->link_flag |= LS_IGNORE_ERATT;
4361 spin_unlock_irq(&phba->hbalock);
4363 lpfc_kill_board(phba, pmb);
4364 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4365 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4367 if (retval != MBX_SUCCESS) {
4368 if (retval != MBX_BUSY)
4369 mempool_free(pmb, phba->mbox_mem_pool);
4370 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4371 "2752 KILL_BOARD command failed retval %d\n",
4373 spin_lock_irq(&phba->hbalock);
4374 phba->link_flag &= ~LS_IGNORE_ERATT;
4375 spin_unlock_irq(&phba->hbalock);
4379 spin_lock_irq(&phba->hbalock);
4380 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4381 spin_unlock_irq(&phba->hbalock);
4383 mempool_free(pmb, phba->mbox_mem_pool);
4385 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4386 * attention every 100ms for 3 seconds. If we don't get ERATT after
4387 * 3 seconds we still set HBA_ERROR state because the status of the
4388 * board is now undefined.
4390 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4392 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4394 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4398 del_timer_sync(&psli->mbox_tmo);
4399 if (ha_copy & HA_ERATT) {
4400 writel(HA_ERATT, phba->HAregaddr);
4401 phba->pport->stopped = 1;
4403 spin_lock_irq(&phba->hbalock);
4404 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4405 psli->mbox_active = NULL;
4406 phba->link_flag &= ~LS_IGNORE_ERATT;
4407 spin_unlock_irq(&phba->hbalock);
4409 lpfc_hba_down_post(phba);
4410 phba->link_state = LPFC_HBA_ERROR;
4412 return ha_copy & HA_ERATT ? 0 : 1;
4416 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4417 * @phba: Pointer to HBA context object.
4419 * This function resets the HBA by writing HC_INITFF to the control
4420 * register. After the HBA resets, this function resets all the iocb ring
4421 * indices. This function disables PCI layer parity checking during
4423 * This function returns 0 always.
4424 * The caller is not required to hold any locks.
4427 lpfc_sli_brdreset(struct lpfc_hba *phba)
4429 struct lpfc_sli *psli;
4430 struct lpfc_sli_ring *pring;
4437 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4438 "0325 Reset HBA Data: x%x x%x\n",
4439 (phba->pport) ? phba->pport->port_state : 0,
4442 /* perform board reset */
4443 phba->fc_eventTag = 0;
4444 phba->link_events = 0;
4446 phba->pport->fc_myDID = 0;
4447 phba->pport->fc_prevDID = 0;
4450 /* Turn off parity checking and serr during the physical reset */
4451 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4452 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4454 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4456 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4458 /* Now toggle INITFF bit in the Host Control Register */
4459 writel(HC_INITFF, phba->HCregaddr);
4461 readl(phba->HCregaddr); /* flush */
4462 writel(0, phba->HCregaddr);
4463 readl(phba->HCregaddr); /* flush */
4465 /* Restore PCI cmd register */
4466 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4468 /* Initialize relevant SLI info */
4469 for (i = 0; i < psli->num_rings; i++) {
4470 pring = &psli->sli3_ring[i];
4472 pring->sli.sli3.rspidx = 0;
4473 pring->sli.sli3.next_cmdidx = 0;
4474 pring->sli.sli3.local_getidx = 0;
4475 pring->sli.sli3.cmdidx = 0;
4476 pring->missbufcnt = 0;
4479 phba->link_state = LPFC_WARM_START;
4484 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4485 * @phba: Pointer to HBA context object.
4487 * This function resets a SLI4 HBA. This function disables PCI layer parity
4488 * checking during resets the device. The caller is not required to hold
4491 * This function returns 0 always.
4494 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4496 struct lpfc_sli *psli = &phba->sli;
4501 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4502 "0295 Reset HBA Data: x%x x%x x%x\n",
4503 phba->pport->port_state, psli->sli_flag,
4506 /* perform board reset */
4507 phba->fc_eventTag = 0;
4508 phba->link_events = 0;
4509 phba->pport->fc_myDID = 0;
4510 phba->pport->fc_prevDID = 0;
4512 spin_lock_irq(&phba->hbalock);
4513 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4514 phba->fcf.fcf_flag = 0;
4515 spin_unlock_irq(&phba->hbalock);
4517 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4518 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4519 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4523 /* Now physically reset the device */
4524 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4525 "0389 Performing PCI function reset!\n");
4527 /* Turn off parity checking and serr during the physical reset */
4528 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4529 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4530 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4532 /* Perform FCoE PCI function reset before freeing queue memory */
4533 rc = lpfc_pci_function_reset(phba);
4535 /* Restore PCI cmd register */
4536 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4542 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4543 * @phba: Pointer to HBA context object.
4545 * This function is called in the SLI initialization code path to
4546 * restart the HBA. The caller is not required to hold any lock.
4547 * This function writes MBX_RESTART mailbox command to the SLIM and
4548 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4549 * function to free any pending commands. The function enables
4550 * POST only during the first initialization. The function returns zero.
4551 * The function does not guarantee completion of MBX_RESTART mailbox
4552 * command before the return of this function.
4555 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4558 struct lpfc_sli *psli;
4559 volatile uint32_t word0;
4560 void __iomem *to_slim;
4561 uint32_t hba_aer_enabled;
4563 spin_lock_irq(&phba->hbalock);
4565 /* Take PCIe device Advanced Error Reporting (AER) state */
4566 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4571 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4572 "0337 Restart HBA Data: x%x x%x\n",
4573 (phba->pport) ? phba->pport->port_state : 0,
4577 mb = (MAILBOX_t *) &word0;
4578 mb->mbxCommand = MBX_RESTART;
4581 lpfc_reset_barrier(phba);
4583 to_slim = phba->MBslimaddr;
4584 writel(*(uint32_t *) mb, to_slim);
4585 readl(to_slim); /* flush */
4587 /* Only skip post after fc_ffinit is completed */
4588 if (phba->pport && phba->pport->port_state)
4589 word0 = 1; /* This is really setting up word1 */
4591 word0 = 0; /* This is really setting up word1 */
4592 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4593 writel(*(uint32_t *) mb, to_slim);
4594 readl(to_slim); /* flush */
4596 lpfc_sli_brdreset(phba);
4598 phba->pport->stopped = 0;
4599 phba->link_state = LPFC_INIT_START;
4601 spin_unlock_irq(&phba->hbalock);
4603 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4604 psli->stats_start = ktime_get_seconds();
4606 /* Give the INITFF and Post time to settle. */
4609 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4610 if (hba_aer_enabled)
4611 pci_disable_pcie_error_reporting(phba->pcidev);
4613 lpfc_hba_down_post(phba);
4619 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4620 * @phba: Pointer to HBA context object.
4622 * This function is called in the SLI initialization code path to restart
4623 * a SLI4 HBA. The caller is not required to hold any lock.
4624 * At the end of the function, it calls lpfc_hba_down_post function to
4625 * free any pending commands.
4628 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4630 struct lpfc_sli *psli = &phba->sli;
4631 uint32_t hba_aer_enabled;
4635 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4636 "0296 Restart HBA Data: x%x x%x\n",
4637 phba->pport->port_state, psli->sli_flag);
4639 /* Take PCIe device Advanced Error Reporting (AER) state */
4640 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4642 rc = lpfc_sli4_brdreset(phba);
4644 spin_lock_irq(&phba->hbalock);
4645 phba->pport->stopped = 0;
4646 phba->link_state = LPFC_INIT_START;
4648 spin_unlock_irq(&phba->hbalock);
4650 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4651 psli->stats_start = ktime_get_seconds();
4653 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4654 if (hba_aer_enabled)
4655 pci_disable_pcie_error_reporting(phba->pcidev);
4657 lpfc_hba_down_post(phba);
4658 lpfc_sli4_queue_destroy(phba);
4664 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4665 * @phba: Pointer to HBA context object.
4667 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4668 * API jump table function pointer from the lpfc_hba struct.
4671 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4673 return phba->lpfc_sli_brdrestart(phba);
4677 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4678 * @phba: Pointer to HBA context object.
4680 * This function is called after a HBA restart to wait for successful
4681 * restart of the HBA. Successful restart of the HBA is indicated by
4682 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4683 * iteration, the function will restart the HBA again. The function returns
4684 * zero if HBA successfully restarted else returns negative error code.
4687 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4689 uint32_t status, i = 0;
4691 /* Read the HBA Host Status Register */
4692 if (lpfc_readl(phba->HSregaddr, &status))
4695 /* Check status register to see what current state is */
4697 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4699 /* Check every 10ms for 10 retries, then every 100ms for 90
4700 * retries, then every 1 sec for 50 retires for a total of
4701 * ~60 seconds before reset the board again and check every
4702 * 1 sec for 50 retries. The up to 60 seconds before the
4703 * board ready is required by the Falcon FIPS zeroization
4704 * complete, and any reset the board in between shall cause
4705 * restart of zeroization, further delay the board ready.
4708 /* Adapter failed to init, timeout, status reg
4710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4711 "0436 Adapter failed to init, "
4712 "timeout, status reg x%x, "
4713 "FW Data: A8 x%x AC x%x\n", status,
4714 readl(phba->MBslimaddr + 0xa8),
4715 readl(phba->MBslimaddr + 0xac));
4716 phba->link_state = LPFC_HBA_ERROR;
4720 /* Check to see if any errors occurred during init */
4721 if (status & HS_FFERM) {
4722 /* ERROR: During chipset initialization */
4723 /* Adapter failed to init, chipset, status reg
4725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4726 "0437 Adapter failed to init, "
4727 "chipset, status reg x%x, "
4728 "FW Data: A8 x%x AC x%x\n", status,
4729 readl(phba->MBslimaddr + 0xa8),
4730 readl(phba->MBslimaddr + 0xac));
4731 phba->link_state = LPFC_HBA_ERROR;
4744 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4745 lpfc_sli_brdrestart(phba);
4747 /* Read the HBA Host Status Register */
4748 if (lpfc_readl(phba->HSregaddr, &status))
4752 /* Check to see if any errors occurred during init */
4753 if (status & HS_FFERM) {
4754 /* ERROR: During chipset initialization */
4755 /* Adapter failed to init, chipset, status reg <status> */
4756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4757 "0438 Adapter failed to init, chipset, "
4759 "FW Data: A8 x%x AC x%x\n", status,
4760 readl(phba->MBslimaddr + 0xa8),
4761 readl(phba->MBslimaddr + 0xac));
4762 phba->link_state = LPFC_HBA_ERROR;
4766 /* Clear all interrupt enable conditions */
4767 writel(0, phba->HCregaddr);
4768 readl(phba->HCregaddr); /* flush */
4770 /* setup host attn register */
4771 writel(0xffffffff, phba->HAregaddr);
4772 readl(phba->HAregaddr); /* flush */
4777 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4779 * This function calculates and returns the number of HBQs required to be
4783 lpfc_sli_hbq_count(void)
4785 return ARRAY_SIZE(lpfc_hbq_defs);
4789 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4791 * This function adds the number of hbq entries in every HBQ to get
4792 * the total number of hbq entries required for the HBA and returns
4796 lpfc_sli_hbq_entry_count(void)
4798 int hbq_count = lpfc_sli_hbq_count();
4802 for (i = 0; i < hbq_count; ++i)
4803 count += lpfc_hbq_defs[i]->entry_count;
4808 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4810 * This function calculates amount of memory required for all hbq entries
4811 * to be configured and returns the total memory required.
4814 lpfc_sli_hbq_size(void)
4816 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4820 * lpfc_sli_hbq_setup - configure and initialize HBQs
4821 * @phba: Pointer to HBA context object.
4823 * This function is called during the SLI initialization to configure
4824 * all the HBQs and post buffers to the HBQ. The caller is not
4825 * required to hold any locks. This function will return zero if successful
4826 * else it will return negative error code.
4829 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4831 int hbq_count = lpfc_sli_hbq_count();
4835 uint32_t hbq_entry_index;
4837 /* Get a Mailbox buffer to setup mailbox
4838 * commands for HBA initialization
4840 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4847 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4848 phba->link_state = LPFC_INIT_MBX_CMDS;
4849 phba->hbq_in_use = 1;
4851 hbq_entry_index = 0;
4852 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4853 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4854 phba->hbqs[hbqno].hbqPutIdx = 0;
4855 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4856 phba->hbqs[hbqno].entry_count =
4857 lpfc_hbq_defs[hbqno]->entry_count;
4858 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4859 hbq_entry_index, pmb);
4860 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4862 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4863 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4864 mbxStatus <status>, ring <num> */
4866 lpfc_printf_log(phba, KERN_ERR,
4867 LOG_SLI | LOG_VPORT,
4868 "1805 Adapter failed to init. "
4869 "Data: x%x x%x x%x\n",
4871 pmbox->mbxStatus, hbqno);
4873 phba->link_state = LPFC_HBA_ERROR;
4874 mempool_free(pmb, phba->mbox_mem_pool);
4878 phba->hbq_count = hbq_count;
4880 mempool_free(pmb, phba->mbox_mem_pool);
4882 /* Initially populate or replenish the HBQs */
4883 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4884 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4889 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4890 * @phba: Pointer to HBA context object.
4892 * This function is called during the SLI initialization to configure
4893 * all the HBQs and post buffers to the HBQ. The caller is not
4894 * required to hold any locks. This function will return zero if successful
4895 * else it will return negative error code.
4898 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4900 phba->hbq_in_use = 1;
4901 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4902 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
4903 phba->hbq_count = 1;
4904 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
4905 /* Initially populate or replenish the HBQs */
4910 * lpfc_sli_config_port - Issue config port mailbox command
4911 * @phba: Pointer to HBA context object.
4912 * @sli_mode: sli mode - 2/3
4914 * This function is called by the sli initialization code path
4915 * to issue config_port mailbox command. This function restarts the
4916 * HBA firmware and issues a config_port mailbox command to configure
4917 * the SLI interface in the sli mode specified by sli_mode
4918 * variable. The caller is not required to hold any locks.
4919 * The function returns 0 if successful, else returns negative error
4923 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4926 uint32_t resetcount = 0, rc = 0, done = 0;
4928 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4930 phba->link_state = LPFC_HBA_ERROR;
4934 phba->sli_rev = sli_mode;
4935 while (resetcount < 2 && !done) {
4936 spin_lock_irq(&phba->hbalock);
4937 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4938 spin_unlock_irq(&phba->hbalock);
4939 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4940 lpfc_sli_brdrestart(phba);
4941 rc = lpfc_sli_chipset_init(phba);
4945 spin_lock_irq(&phba->hbalock);
4946 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4947 spin_unlock_irq(&phba->hbalock);
4950 /* Call pre CONFIG_PORT mailbox command initialization. A
4951 * value of 0 means the call was successful. Any other
4952 * nonzero value is a failure, but if ERESTART is returned,
4953 * the driver may reset the HBA and try again.
4955 rc = lpfc_config_port_prep(phba);
4956 if (rc == -ERESTART) {
4957 phba->link_state = LPFC_LINK_UNKNOWN;
4962 phba->link_state = LPFC_INIT_MBX_CMDS;
4963 lpfc_config_port(phba, pmb);
4964 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4965 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4966 LPFC_SLI3_HBQ_ENABLED |
4967 LPFC_SLI3_CRP_ENABLED |
4968 LPFC_SLI3_BG_ENABLED |
4969 LPFC_SLI3_DSS_ENABLED);
4970 if (rc != MBX_SUCCESS) {
4971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4972 "0442 Adapter failed to init, mbxCmd x%x "
4973 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4974 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4975 spin_lock_irq(&phba->hbalock);
4976 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4977 spin_unlock_irq(&phba->hbalock);
4980 /* Allow asynchronous mailbox command to go through */
4981 spin_lock_irq(&phba->hbalock);
4982 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4983 spin_unlock_irq(&phba->hbalock);
4986 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4987 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4988 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4989 "3110 Port did not grant ASABT\n");
4994 goto do_prep_failed;
4996 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4997 if (!pmb->u.mb.un.varCfgPort.cMA) {
4999 goto do_prep_failed;
5001 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
5002 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
5003 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
5004 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
5005 phba->max_vpi : phba->max_vports;
5009 phba->fips_level = 0;
5010 phba->fips_spec_rev = 0;
5011 if (pmb->u.mb.un.varCfgPort.gdss) {
5012 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
5013 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
5014 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
5015 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5016 "2850 Security Crypto Active. FIPS x%d "
5018 phba->fips_level, phba->fips_spec_rev);
5020 if (pmb->u.mb.un.varCfgPort.sec_err) {
5021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5022 "2856 Config Port Security Crypto "
5024 pmb->u.mb.un.varCfgPort.sec_err);
5026 if (pmb->u.mb.un.varCfgPort.gerbm)
5027 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
5028 if (pmb->u.mb.un.varCfgPort.gcrp)
5029 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
5031 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
5032 phba->port_gp = phba->mbox->us.s3_pgp.port;
5034 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5035 if (pmb->u.mb.un.varCfgPort.gbg == 0) {
5036 phba->cfg_enable_bg = 0;
5037 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
5038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5039 "0443 Adapter did not grant "
5044 phba->hbq_get = NULL;
5045 phba->port_gp = phba->mbox->us.s2.port;
5049 mempool_free(pmb, phba->mbox_mem_pool);
5055 * lpfc_sli_hba_setup - SLI initialization function
5056 * @phba: Pointer to HBA context object.
5058 * This function is the main SLI initialization function. This function
5059 * is called by the HBA initialization code, HBA reset code and HBA
5060 * error attention handler code. Caller is not required to hold any
5061 * locks. This function issues config_port mailbox command to configure
5062 * the SLI, setup iocb rings and HBQ rings. In the end the function
5063 * calls the config_port_post function to issue init_link mailbox
5064 * command and to start the discovery. The function will return zero
5065 * if successful, else it will return negative error code.
5068 lpfc_sli_hba_setup(struct lpfc_hba *phba)
5074 switch (phba->cfg_sli_mode) {
5076 if (phba->cfg_enable_npiv) {
5077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5078 "1824 NPIV enabled: Override sli_mode "
5079 "parameter (%d) to auto (0).\n",
5080 phba->cfg_sli_mode);
5089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5090 "1819 Unrecognized sli_mode parameter: %d.\n",
5091 phba->cfg_sli_mode);
5095 phba->fcp_embed_io = 0; /* SLI4 FC support only */
5097 rc = lpfc_sli_config_port(phba, mode);
5099 if (rc && phba->cfg_sli_mode == 3)
5100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5101 "1820 Unable to select SLI-3. "
5102 "Not supported by adapter.\n");
5103 if (rc && mode != 2)
5104 rc = lpfc_sli_config_port(phba, 2);
5105 else if (rc && mode == 2)
5106 rc = lpfc_sli_config_port(phba, 3);
5108 goto lpfc_sli_hba_setup_error;
5110 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
5111 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
5112 rc = pci_enable_pcie_error_reporting(phba->pcidev);
5114 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5115 "2709 This device supports "
5116 "Advanced Error Reporting (AER)\n");
5117 spin_lock_irq(&phba->hbalock);
5118 phba->hba_flag |= HBA_AER_ENABLED;
5119 spin_unlock_irq(&phba->hbalock);
5121 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5122 "2708 This device does not support "
5123 "Advanced Error Reporting (AER): %d\n",
5125 phba->cfg_aer_support = 0;
5129 if (phba->sli_rev == 3) {
5130 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
5131 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
5133 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
5134 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
5135 phba->sli3_options = 0;
5138 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5139 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
5140 phba->sli_rev, phba->max_vpi);
5141 rc = lpfc_sli_ring_map(phba);
5144 goto lpfc_sli_hba_setup_error;
5146 /* Initialize VPIs. */
5147 if (phba->sli_rev == LPFC_SLI_REV3) {
5149 * The VPI bitmask and physical ID array are allocated
5150 * and initialized once only - at driver load. A port
5151 * reset doesn't need to reinitialize this memory.
5153 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
5154 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
5155 phba->vpi_bmask = kcalloc(longs,
5156 sizeof(unsigned long),
5158 if (!phba->vpi_bmask) {
5160 goto lpfc_sli_hba_setup_error;
5163 phba->vpi_ids = kcalloc(phba->max_vpi + 1,
5166 if (!phba->vpi_ids) {
5167 kfree(phba->vpi_bmask);
5169 goto lpfc_sli_hba_setup_error;
5171 for (i = 0; i < phba->max_vpi; i++)
5172 phba->vpi_ids[i] = i;
5177 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
5178 rc = lpfc_sli_hbq_setup(phba);
5180 goto lpfc_sli_hba_setup_error;
5182 spin_lock_irq(&phba->hbalock);
5183 phba->sli.sli_flag |= LPFC_PROCESS_LA;
5184 spin_unlock_irq(&phba->hbalock);
5186 rc = lpfc_config_port_post(phba);
5188 goto lpfc_sli_hba_setup_error;
5192 lpfc_sli_hba_setup_error:
5193 phba->link_state = LPFC_HBA_ERROR;
5194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5195 "0445 Firmware initialization failed\n");
5200 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
5201 * @phba: Pointer to HBA context object.
5202 * @mboxq: mailbox pointer.
5203 * This function issue a dump mailbox command to read config region
5204 * 23 and parse the records in the region and populate driver
5208 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
5210 LPFC_MBOXQ_t *mboxq;
5211 struct lpfc_dmabuf *mp;
5212 struct lpfc_mqe *mqe;
5213 uint32_t data_length;
5216 /* Program the default value of vlan_id and fc_map */
5217 phba->valid_vlan = 0;
5218 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5219 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5220 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5222 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5226 mqe = &mboxq->u.mqe;
5227 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5229 goto out_free_mboxq;
5232 mp = (struct lpfc_dmabuf *) mboxq->context1;
5233 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5235 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5236 "(%d):2571 Mailbox cmd x%x Status x%x "
5237 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5238 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5239 "CQ: x%x x%x x%x x%x\n",
5240 mboxq->vport ? mboxq->vport->vpi : 0,
5241 bf_get(lpfc_mqe_command, mqe),
5242 bf_get(lpfc_mqe_status, mqe),
5243 mqe->un.mb_words[0], mqe->un.mb_words[1],
5244 mqe->un.mb_words[2], mqe->un.mb_words[3],
5245 mqe->un.mb_words[4], mqe->un.mb_words[5],
5246 mqe->un.mb_words[6], mqe->un.mb_words[7],
5247 mqe->un.mb_words[8], mqe->un.mb_words[9],
5248 mqe->un.mb_words[10], mqe->un.mb_words[11],
5249 mqe->un.mb_words[12], mqe->un.mb_words[13],
5250 mqe->un.mb_words[14], mqe->un.mb_words[15],
5251 mqe->un.mb_words[16], mqe->un.mb_words[50],
5253 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5254 mboxq->mcqe.trailer);
5257 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5260 goto out_free_mboxq;
5262 data_length = mqe->un.mb_words[5];
5263 if (data_length > DMP_RGN23_SIZE) {
5264 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5267 goto out_free_mboxq;
5270 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5271 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5276 mempool_free(mboxq, phba->mbox_mem_pool);
5281 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5282 * @phba: pointer to lpfc hba data structure.
5283 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5284 * @vpd: pointer to the memory to hold resulting port vpd data.
5285 * @vpd_size: On input, the number of bytes allocated to @vpd.
5286 * On output, the number of data bytes in @vpd.
5288 * This routine executes a READ_REV SLI4 mailbox command. In
5289 * addition, this routine gets the port vpd data.
5293 * -ENOMEM - could not allocated memory.
5296 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5297 uint8_t *vpd, uint32_t *vpd_size)
5301 struct lpfc_dmabuf *dmabuf;
5302 struct lpfc_mqe *mqe;
5304 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5309 * Get a DMA buffer for the vpd data resulting from the READ_REV
5312 dma_size = *vpd_size;
5313 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
5314 &dmabuf->phys, GFP_KERNEL);
5315 if (!dmabuf->virt) {
5321 * The SLI4 implementation of READ_REV conflicts at word1,
5322 * bits 31:16 and SLI4 adds vpd functionality not present
5323 * in SLI3. This code corrects the conflicts.
5325 lpfc_read_rev(phba, mboxq);
5326 mqe = &mboxq->u.mqe;
5327 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5328 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5329 mqe->un.read_rev.word1 &= 0x0000FFFF;
5330 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5331 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5333 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5335 dma_free_coherent(&phba->pcidev->dev, dma_size,
5336 dmabuf->virt, dmabuf->phys);
5342 * The available vpd length cannot be bigger than the
5343 * DMA buffer passed to the port. Catch the less than
5344 * case and update the caller's size.
5346 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5347 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5349 memcpy(vpd, dmabuf->virt, *vpd_size);
5351 dma_free_coherent(&phba->pcidev->dev, dma_size,
5352 dmabuf->virt, dmabuf->phys);
5358 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5359 * @phba: pointer to lpfc hba data structure.
5361 * This routine retrieves SLI4 device physical port name this PCI function
5366 * otherwise - failed to retrieve physical port name
5369 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5371 LPFC_MBOXQ_t *mboxq;
5372 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5373 struct lpfc_controller_attribute *cntl_attr;
5374 struct lpfc_mbx_get_port_name *get_port_name;
5375 void *virtaddr = NULL;
5376 uint32_t alloclen, reqlen;
5377 uint32_t shdr_status, shdr_add_status;
5378 union lpfc_sli4_cfg_shdr *shdr;
5379 char cport_name = 0;
5382 /* We assume nothing at this point */
5383 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5384 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5386 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5389 /* obtain link type and link number via READ_CONFIG */
5390 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5391 lpfc_sli4_read_config(phba);
5392 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5393 goto retrieve_ppname;
5395 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5396 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5397 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5398 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5399 LPFC_SLI4_MBX_NEMBED);
5400 if (alloclen < reqlen) {
5401 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5402 "3084 Allocated DMA memory size (%d) is "
5403 "less than the requested DMA memory size "
5404 "(%d)\n", alloclen, reqlen);
5406 goto out_free_mboxq;
5408 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5409 virtaddr = mboxq->sge_array->addr[0];
5410 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5411 shdr = &mbx_cntl_attr->cfg_shdr;
5412 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5413 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5414 if (shdr_status || shdr_add_status || rc) {
5415 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5416 "3085 Mailbox x%x (x%x/x%x) failed, "
5417 "rc:x%x, status:x%x, add_status:x%x\n",
5418 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5419 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5420 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5421 rc, shdr_status, shdr_add_status);
5423 goto out_free_mboxq;
5425 cntl_attr = &mbx_cntl_attr->cntl_attr;
5426 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5427 phba->sli4_hba.lnk_info.lnk_tp =
5428 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5429 phba->sli4_hba.lnk_info.lnk_no =
5430 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5431 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5432 "3086 lnk_type:%d, lnk_numb:%d\n",
5433 phba->sli4_hba.lnk_info.lnk_tp,
5434 phba->sli4_hba.lnk_info.lnk_no);
5437 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5438 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5439 sizeof(struct lpfc_mbx_get_port_name) -
5440 sizeof(struct lpfc_sli4_cfg_mhdr),
5441 LPFC_SLI4_MBX_EMBED);
5442 get_port_name = &mboxq->u.mqe.un.get_port_name;
5443 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5444 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5445 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5446 phba->sli4_hba.lnk_info.lnk_tp);
5447 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5448 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5449 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5450 if (shdr_status || shdr_add_status || rc) {
5451 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5452 "3087 Mailbox x%x (x%x/x%x) failed: "
5453 "rc:x%x, status:x%x, add_status:x%x\n",
5454 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5455 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5456 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5457 rc, shdr_status, shdr_add_status);
5459 goto out_free_mboxq;
5461 switch (phba->sli4_hba.lnk_info.lnk_no) {
5462 case LPFC_LINK_NUMBER_0:
5463 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5464 &get_port_name->u.response);
5465 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5467 case LPFC_LINK_NUMBER_1:
5468 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5469 &get_port_name->u.response);
5470 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5472 case LPFC_LINK_NUMBER_2:
5473 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5474 &get_port_name->u.response);
5475 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5477 case LPFC_LINK_NUMBER_3:
5478 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5479 &get_port_name->u.response);
5480 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5486 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5487 phba->Port[0] = cport_name;
5488 phba->Port[1] = '\0';
5489 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5490 "3091 SLI get port name: %s\n", phba->Port);
5494 if (rc != MBX_TIMEOUT) {
5495 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5496 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5498 mempool_free(mboxq, phba->mbox_mem_pool);
5504 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5505 * @phba: pointer to lpfc hba data structure.
5507 * This routine is called to explicitly arm the SLI4 device's completion and
5511 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5514 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
5516 sli4_hba->sli4_cq_release(sli4_hba->mbx_cq, LPFC_QUEUE_REARM);
5517 sli4_hba->sli4_cq_release(sli4_hba->els_cq, LPFC_QUEUE_REARM);
5518 if (sli4_hba->nvmels_cq)
5519 sli4_hba->sli4_cq_release(sli4_hba->nvmels_cq,
5522 if (sli4_hba->fcp_cq)
5523 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
5524 sli4_hba->sli4_cq_release(sli4_hba->fcp_cq[qidx],
5527 if (sli4_hba->nvme_cq)
5528 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
5529 sli4_hba->sli4_cq_release(sli4_hba->nvme_cq[qidx],
5533 sli4_hba->sli4_cq_release(sli4_hba->oas_cq, LPFC_QUEUE_REARM);
5535 if (sli4_hba->hba_eq)
5536 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
5537 sli4_hba->sli4_eq_release(sli4_hba->hba_eq[qidx],
5540 if (phba->nvmet_support) {
5541 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5542 sli4_hba->sli4_cq_release(
5543 sli4_hba->nvmet_cqset[qidx],
5549 sli4_hba->sli4_eq_release(sli4_hba->fof_eq, LPFC_QUEUE_REARM);
5553 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5554 * @phba: Pointer to HBA context object.
5555 * @type: The resource extent type.
5556 * @extnt_count: buffer to hold port available extent count.
5557 * @extnt_size: buffer to hold element count per extent.
5559 * This function calls the port and retrievs the number of available
5560 * extents and their size for a particular extent type.
5562 * Returns: 0 if successful. Nonzero otherwise.
5565 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5566 uint16_t *extnt_count, uint16_t *extnt_size)
5571 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5574 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5578 /* Find out how many extents are available for this resource type */
5579 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5580 sizeof(struct lpfc_sli4_cfg_mhdr));
5581 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5582 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5583 length, LPFC_SLI4_MBX_EMBED);
5585 /* Send an extents count of 0 - the GET doesn't use it. */
5586 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5587 LPFC_SLI4_MBX_EMBED);
5593 if (!phba->sli4_hba.intr_enable)
5594 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5596 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5597 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5604 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5605 if (bf_get(lpfc_mbox_hdr_status,
5606 &rsrc_info->header.cfg_shdr.response)) {
5607 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5608 "2930 Failed to get resource extents "
5609 "Status 0x%x Add'l Status 0x%x\n",
5610 bf_get(lpfc_mbox_hdr_status,
5611 &rsrc_info->header.cfg_shdr.response),
5612 bf_get(lpfc_mbox_hdr_add_status,
5613 &rsrc_info->header.cfg_shdr.response));
5618 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5620 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5623 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5624 "3162 Retrieved extents type-%d from port: count:%d, "
5625 "size:%d\n", type, *extnt_count, *extnt_size);
5628 mempool_free(mbox, phba->mbox_mem_pool);
5633 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5634 * @phba: Pointer to HBA context object.
5635 * @type: The extent type to check.
5637 * This function reads the current available extents from the port and checks
5638 * if the extent count or extent size has changed since the last access.
5639 * Callers use this routine post port reset to understand if there is a
5640 * extent reprovisioning requirement.
5643 * -Error: error indicates problem.
5644 * 1: Extent count or size has changed.
5648 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5650 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5651 uint16_t size_diff, rsrc_ext_size;
5653 struct lpfc_rsrc_blks *rsrc_entry;
5654 struct list_head *rsrc_blk_list = NULL;
5658 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5665 case LPFC_RSC_TYPE_FCOE_RPI:
5666 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5668 case LPFC_RSC_TYPE_FCOE_VPI:
5669 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5671 case LPFC_RSC_TYPE_FCOE_XRI:
5672 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5674 case LPFC_RSC_TYPE_FCOE_VFI:
5675 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5681 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5683 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5687 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5694 * lpfc_sli4_cfg_post_extnts -
5695 * @phba: Pointer to HBA context object.
5696 * @extnt_cnt - number of available extents.
5697 * @type - the extent type (rpi, xri, vfi, vpi).
5698 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5699 * @mbox - pointer to the caller's allocated mailbox structure.
5701 * This function executes the extents allocation request. It also
5702 * takes care of the amount of memory needed to allocate or get the
5703 * allocated extents. It is the caller's responsibility to evaluate
5707 * -Error: Error value describes the condition found.
5711 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5712 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5717 uint32_t alloc_len, mbox_tmo;
5719 /* Calculate the total requested length of the dma memory */
5720 req_len = extnt_cnt * sizeof(uint16_t);
5723 * Calculate the size of an embedded mailbox. The uint32_t
5724 * accounts for extents-specific word.
5726 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5730 * Presume the allocation and response will fit into an embedded
5731 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5733 *emb = LPFC_SLI4_MBX_EMBED;
5734 if (req_len > emb_len) {
5735 req_len = extnt_cnt * sizeof(uint16_t) +
5736 sizeof(union lpfc_sli4_cfg_shdr) +
5738 *emb = LPFC_SLI4_MBX_NEMBED;
5741 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5742 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5744 if (alloc_len < req_len) {
5745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5746 "2982 Allocated DMA memory size (x%x) is "
5747 "less than the requested DMA memory "
5748 "size (x%x)\n", alloc_len, req_len);
5751 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5755 if (!phba->sli4_hba.intr_enable)
5756 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5758 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5759 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5768 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5769 * @phba: Pointer to HBA context object.
5770 * @type: The resource extent type to allocate.
5772 * This function allocates the number of elements for the specified
5776 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5779 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5780 uint16_t rsrc_id, rsrc_start, j, k;
5783 unsigned long longs;
5784 unsigned long *bmask;
5785 struct lpfc_rsrc_blks *rsrc_blks;
5788 struct lpfc_id_range *id_array = NULL;
5789 void *virtaddr = NULL;
5790 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5791 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5792 struct list_head *ext_blk_list;
5794 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5800 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5801 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5802 "3009 No available Resource Extents "
5803 "for resource type 0x%x: Count: 0x%x, "
5804 "Size 0x%x\n", type, rsrc_cnt,
5809 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5810 "2903 Post resource extents type-0x%x: "
5811 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5813 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5817 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5824 * Figure out where the response is located. Then get local pointers
5825 * to the response data. The port does not guarantee to respond to
5826 * all extents counts request so update the local variable with the
5827 * allocated count from the port.
5829 if (emb == LPFC_SLI4_MBX_EMBED) {
5830 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5831 id_array = &rsrc_ext->u.rsp.id[0];
5832 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5834 virtaddr = mbox->sge_array->addr[0];
5835 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5836 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5837 id_array = &n_rsrc->id;
5840 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5841 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5844 * Based on the resource size and count, correct the base and max
5847 length = sizeof(struct lpfc_rsrc_blks);
5849 case LPFC_RSC_TYPE_FCOE_RPI:
5850 phba->sli4_hba.rpi_bmask = kcalloc(longs,
5851 sizeof(unsigned long),
5853 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5857 phba->sli4_hba.rpi_ids = kcalloc(rsrc_id_cnt,
5860 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5861 kfree(phba->sli4_hba.rpi_bmask);
5867 * The next_rpi was initialized with the maximum available
5868 * count but the port may allocate a smaller number. Catch
5869 * that case and update the next_rpi.
5871 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5873 /* Initialize local ptrs for common extent processing later. */
5874 bmask = phba->sli4_hba.rpi_bmask;
5875 ids = phba->sli4_hba.rpi_ids;
5876 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5878 case LPFC_RSC_TYPE_FCOE_VPI:
5879 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
5881 if (unlikely(!phba->vpi_bmask)) {
5885 phba->vpi_ids = kcalloc(rsrc_id_cnt, sizeof(uint16_t),
5887 if (unlikely(!phba->vpi_ids)) {
5888 kfree(phba->vpi_bmask);
5893 /* Initialize local ptrs for common extent processing later. */
5894 bmask = phba->vpi_bmask;
5895 ids = phba->vpi_ids;
5896 ext_blk_list = &phba->lpfc_vpi_blk_list;
5898 case LPFC_RSC_TYPE_FCOE_XRI:
5899 phba->sli4_hba.xri_bmask = kcalloc(longs,
5900 sizeof(unsigned long),
5902 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5906 phba->sli4_hba.max_cfg_param.xri_used = 0;
5907 phba->sli4_hba.xri_ids = kcalloc(rsrc_id_cnt,
5910 if (unlikely(!phba->sli4_hba.xri_ids)) {
5911 kfree(phba->sli4_hba.xri_bmask);
5916 /* Initialize local ptrs for common extent processing later. */
5917 bmask = phba->sli4_hba.xri_bmask;
5918 ids = phba->sli4_hba.xri_ids;
5919 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5921 case LPFC_RSC_TYPE_FCOE_VFI:
5922 phba->sli4_hba.vfi_bmask = kcalloc(longs,
5923 sizeof(unsigned long),
5925 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5929 phba->sli4_hba.vfi_ids = kcalloc(rsrc_id_cnt,
5932 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5933 kfree(phba->sli4_hba.vfi_bmask);
5938 /* Initialize local ptrs for common extent processing later. */
5939 bmask = phba->sli4_hba.vfi_bmask;
5940 ids = phba->sli4_hba.vfi_ids;
5941 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5944 /* Unsupported Opcode. Fail call. */
5948 ext_blk_list = NULL;
5953 * Complete initializing the extent configuration with the
5954 * allocated ids assigned to this function. The bitmask serves
5955 * as an index into the array and manages the available ids. The
5956 * array just stores the ids communicated to the port via the wqes.
5958 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5960 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5963 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5966 rsrc_blks = kzalloc(length, GFP_KERNEL);
5967 if (unlikely(!rsrc_blks)) {
5973 rsrc_blks->rsrc_start = rsrc_id;
5974 rsrc_blks->rsrc_size = rsrc_size;
5975 list_add_tail(&rsrc_blks->list, ext_blk_list);
5976 rsrc_start = rsrc_id;
5977 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
5978 phba->sli4_hba.scsi_xri_start = rsrc_start +
5979 lpfc_sli4_get_iocb_cnt(phba);
5980 phba->sli4_hba.nvme_xri_start =
5981 phba->sli4_hba.scsi_xri_start +
5982 phba->sli4_hba.scsi_xri_max;
5985 while (rsrc_id < (rsrc_start + rsrc_size)) {
5990 /* Entire word processed. Get next word.*/
5995 lpfc_sli4_mbox_cmd_free(phba, mbox);
6002 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
6003 * @phba: Pointer to HBA context object.
6004 * @type: the extent's type.
6006 * This function deallocates all extents of a particular resource type.
6007 * SLI4 does not allow for deallocating a particular extent range. It
6008 * is the caller's responsibility to release all kernel memory resources.
6011 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
6014 uint32_t length, mbox_tmo = 0;
6016 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
6017 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
6019 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6024 * This function sends an embedded mailbox because it only sends the
6025 * the resource type. All extents of this type are released by the
6028 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
6029 sizeof(struct lpfc_sli4_cfg_mhdr));
6030 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6031 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
6032 length, LPFC_SLI4_MBX_EMBED);
6034 /* Send an extents count of 0 - the dealloc doesn't use it. */
6035 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6036 LPFC_SLI4_MBX_EMBED);
6041 if (!phba->sli4_hba.intr_enable)
6042 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6044 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6045 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6052 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
6053 if (bf_get(lpfc_mbox_hdr_status,
6054 &dealloc_rsrc->header.cfg_shdr.response)) {
6055 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6056 "2919 Failed to release resource extents "
6057 "for type %d - Status 0x%x Add'l Status 0x%x. "
6058 "Resource memory not released.\n",
6060 bf_get(lpfc_mbox_hdr_status,
6061 &dealloc_rsrc->header.cfg_shdr.response),
6062 bf_get(lpfc_mbox_hdr_add_status,
6063 &dealloc_rsrc->header.cfg_shdr.response));
6068 /* Release kernel memory resources for the specific type. */
6070 case LPFC_RSC_TYPE_FCOE_VPI:
6071 kfree(phba->vpi_bmask);
6072 kfree(phba->vpi_ids);
6073 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6074 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6075 &phba->lpfc_vpi_blk_list, list) {
6076 list_del_init(&rsrc_blk->list);
6079 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6081 case LPFC_RSC_TYPE_FCOE_XRI:
6082 kfree(phba->sli4_hba.xri_bmask);
6083 kfree(phba->sli4_hba.xri_ids);
6084 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6085 &phba->sli4_hba.lpfc_xri_blk_list, list) {
6086 list_del_init(&rsrc_blk->list);
6090 case LPFC_RSC_TYPE_FCOE_VFI:
6091 kfree(phba->sli4_hba.vfi_bmask);
6092 kfree(phba->sli4_hba.vfi_ids);
6093 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6094 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6095 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
6096 list_del_init(&rsrc_blk->list);
6100 case LPFC_RSC_TYPE_FCOE_RPI:
6101 /* RPI bitmask and physical id array are cleaned up earlier. */
6102 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6103 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
6104 list_del_init(&rsrc_blk->list);
6112 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6115 mempool_free(mbox, phba->mbox_mem_pool);
6120 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
6125 len = sizeof(struct lpfc_mbx_set_feature) -
6126 sizeof(struct lpfc_sli4_cfg_mhdr);
6127 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6128 LPFC_MBOX_OPCODE_SET_FEATURES, len,
6129 LPFC_SLI4_MBX_EMBED);
6132 case LPFC_SET_UE_RECOVERY:
6133 bf_set(lpfc_mbx_set_feature_UER,
6134 &mbox->u.mqe.un.set_feature, 1);
6135 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
6136 mbox->u.mqe.un.set_feature.param_len = 8;
6138 case LPFC_SET_MDS_DIAGS:
6139 bf_set(lpfc_mbx_set_feature_mds,
6140 &mbox->u.mqe.un.set_feature, 1);
6141 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
6142 &mbox->u.mqe.un.set_feature, 1);
6143 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
6144 mbox->u.mqe.un.set_feature.param_len = 8;
6152 * lpfc_sli4_ras_dma_free - Free memory allocated for FW logging.
6153 * @phba: Pointer to HBA context object.
6155 * This function is called to free memory allocated for RAS FW logging
6156 * support in the driver.
6159 lpfc_sli4_ras_dma_free(struct lpfc_hba *phba)
6161 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6162 struct lpfc_dmabuf *dmabuf, *next;
6164 if (!list_empty(&ras_fwlog->fwlog_buff_list)) {
6165 list_for_each_entry_safe(dmabuf, next,
6166 &ras_fwlog->fwlog_buff_list,
6168 list_del(&dmabuf->list);
6169 dma_free_coherent(&phba->pcidev->dev,
6170 LPFC_RAS_MAX_ENTRY_SIZE,
6171 dmabuf->virt, dmabuf->phys);
6176 if (ras_fwlog->lwpd.virt) {
6177 dma_free_coherent(&phba->pcidev->dev,
6178 sizeof(uint32_t) * 2,
6179 ras_fwlog->lwpd.virt,
6180 ras_fwlog->lwpd.phys);
6181 ras_fwlog->lwpd.virt = NULL;
6184 ras_fwlog->ras_active = false;
6188 * lpfc_sli4_ras_dma_alloc: Allocate memory for FW support
6189 * @phba: Pointer to HBA context object.
6190 * @fwlog_buff_count: Count of buffers to be created.
6192 * This routine DMA memory for Log Write Position Data[LPWD] and buffer
6193 * to update FW log is posted to the adapter.
6194 * Buffer count is calculated based on module param ras_fwlog_buffsize
6195 * Size of each buffer posted to FW is 64K.
6199 lpfc_sli4_ras_dma_alloc(struct lpfc_hba *phba,
6200 uint32_t fwlog_buff_count)
6202 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6203 struct lpfc_dmabuf *dmabuf;
6206 /* Initialize List */
6207 INIT_LIST_HEAD(&ras_fwlog->fwlog_buff_list);
6209 /* Allocate memory for the LWPD */
6210 ras_fwlog->lwpd.virt = dma_alloc_coherent(&phba->pcidev->dev,
6211 sizeof(uint32_t) * 2,
6212 &ras_fwlog->lwpd.phys,
6214 if (!ras_fwlog->lwpd.virt) {
6215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6216 "6185 LWPD Memory Alloc Failed\n");
6221 ras_fwlog->fw_buffcount = fwlog_buff_count;
6222 for (i = 0; i < ras_fwlog->fw_buffcount; i++) {
6223 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
6227 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6228 "6186 Memory Alloc failed FW logging");
6232 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6233 LPFC_RAS_MAX_ENTRY_SIZE,
6236 if (!dmabuf->virt) {
6239 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6240 "6187 DMA Alloc Failed FW logging");
6243 dmabuf->buffer_tag = i;
6244 list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
6249 lpfc_sli4_ras_dma_free(phba);
6255 * lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
6256 * @phba: pointer to lpfc hba data structure.
6257 * @pmboxq: pointer to the driver internal queue element for mailbox command.
6259 * Completion handler for driver's RAS MBX command to the device.
6262 lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6265 union lpfc_sli4_cfg_shdr *shdr;
6266 uint32_t shdr_status, shdr_add_status;
6267 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6271 shdr = (union lpfc_sli4_cfg_shdr *)
6272 &pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
6273 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6274 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6276 if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
6277 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
6278 "6188 FW LOG mailbox "
6279 "completed with status x%x add_status x%x,"
6280 " mbx status x%x\n",
6281 shdr_status, shdr_add_status, mb->mbxStatus);
6283 ras_fwlog->ras_hwsupport = false;
6287 ras_fwlog->ras_active = true;
6288 mempool_free(pmb, phba->mbox_mem_pool);
6293 /* Free RAS DMA memory */
6294 lpfc_sli4_ras_dma_free(phba);
6295 mempool_free(pmb, phba->mbox_mem_pool);
6299 * lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
6300 * @phba: pointer to lpfc hba data structure.
6301 * @fwlog_level: Logging verbosity level.
6302 * @fwlog_enable: Enable/Disable logging.
6304 * Initialize memory and post mailbox command to enable FW logging in host
6308 lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
6309 uint32_t fwlog_level,
6310 uint32_t fwlog_enable)
6312 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6313 struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
6314 struct lpfc_dmabuf *dmabuf;
6316 uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
6319 fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
6320 phba->cfg_ras_fwlog_buffsize);
6321 fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
6324 * If re-enabling FW logging support use earlier allocated
6325 * DMA buffers while posting MBX command.
6327 if (!ras_fwlog->lwpd.virt) {
6328 rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
6330 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6331 "6189 FW Log Memory Allocation Failed");
6336 /* Setup Mailbox command */
6337 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6340 "6190 RAS MBX Alloc Failed");
6345 ras_fwlog->fw_loglevel = fwlog_level;
6346 len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
6347 sizeof(struct lpfc_sli4_cfg_mhdr));
6349 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
6350 LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
6351 len, LPFC_SLI4_MBX_EMBED);
6353 mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
6354 bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
6356 bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
6357 ras_fwlog->fw_loglevel);
6358 bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
6359 ras_fwlog->fw_buffcount);
6360 bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
6361 LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
6363 /* Update DMA buffer address */
6364 list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
6365 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
6367 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
6368 putPaddrLow(dmabuf->phys);
6370 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
6371 putPaddrHigh(dmabuf->phys);
6374 /* Update LPWD address */
6375 mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
6376 mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
6378 mbox->vport = phba->pport;
6379 mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
6381 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6383 if (rc == MBX_NOT_FINISHED) {
6384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6385 "6191 FW-Log Mailbox failed. "
6386 "status %d mbxStatus : x%x", rc,
6387 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6388 mempool_free(mbox, phba->mbox_mem_pool);
6395 lpfc_sli4_ras_dma_free(phba);
6401 * lpfc_sli4_ras_setup - Check if RAS supported on the adapter
6402 * @phba: Pointer to HBA context object.
6404 * Check if RAS is supported on the adapter and initialize it.
6407 lpfc_sli4_ras_setup(struct lpfc_hba *phba)
6409 /* Check RAS FW Log needs to be enabled or not */
6410 if (lpfc_check_fwlog_support(phba))
6413 lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
6414 LPFC_RAS_ENABLE_LOGGING);
6418 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
6419 * @phba: Pointer to HBA context object.
6421 * This function allocates all SLI4 resource identifiers.
6424 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
6426 int i, rc, error = 0;
6427 uint16_t count, base;
6428 unsigned long longs;
6430 if (!phba->sli4_hba.rpi_hdrs_in_use)
6431 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
6432 if (phba->sli4_hba.extents_in_use) {
6434 * The port supports resource extents. The XRI, VPI, VFI, RPI
6435 * resource extent count must be read and allocated before
6436 * provisioning the resource id arrays.
6438 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6439 LPFC_IDX_RSRC_RDY) {
6441 * Extent-based resources are set - the driver could
6442 * be in a port reset. Figure out if any corrective
6443 * actions need to be taken.
6445 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6446 LPFC_RSC_TYPE_FCOE_VFI);
6449 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6450 LPFC_RSC_TYPE_FCOE_VPI);
6453 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6454 LPFC_RSC_TYPE_FCOE_XRI);
6457 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6458 LPFC_RSC_TYPE_FCOE_RPI);
6463 * It's possible that the number of resources
6464 * provided to this port instance changed between
6465 * resets. Detect this condition and reallocate
6466 * resources. Otherwise, there is no action.
6469 lpfc_printf_log(phba, KERN_INFO,
6470 LOG_MBOX | LOG_INIT,
6471 "2931 Detected extent resource "
6472 "change. Reallocating all "
6474 rc = lpfc_sli4_dealloc_extent(phba,
6475 LPFC_RSC_TYPE_FCOE_VFI);
6476 rc = lpfc_sli4_dealloc_extent(phba,
6477 LPFC_RSC_TYPE_FCOE_VPI);
6478 rc = lpfc_sli4_dealloc_extent(phba,
6479 LPFC_RSC_TYPE_FCOE_XRI);
6480 rc = lpfc_sli4_dealloc_extent(phba,
6481 LPFC_RSC_TYPE_FCOE_RPI);
6486 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6490 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6494 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6498 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6501 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6506 * The port does not support resource extents. The XRI, VPI,
6507 * VFI, RPI resource ids were determined from READ_CONFIG.
6508 * Just allocate the bitmasks and provision the resource id
6509 * arrays. If a port reset is active, the resources don't
6510 * need any action - just exit.
6512 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6513 LPFC_IDX_RSRC_RDY) {
6514 lpfc_sli4_dealloc_resource_identifiers(phba);
6515 lpfc_sli4_remove_rpis(phba);
6518 count = phba->sli4_hba.max_cfg_param.max_rpi;
6520 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6521 "3279 Invalid provisioning of "
6526 base = phba->sli4_hba.max_cfg_param.rpi_base;
6527 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6528 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6529 sizeof(unsigned long),
6531 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6535 phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
6537 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6539 goto free_rpi_bmask;
6542 for (i = 0; i < count; i++)
6543 phba->sli4_hba.rpi_ids[i] = base + i;
6546 count = phba->sli4_hba.max_cfg_param.max_vpi;
6548 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6549 "3280 Invalid provisioning of "
6554 base = phba->sli4_hba.max_cfg_param.vpi_base;
6555 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6556 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6558 if (unlikely(!phba->vpi_bmask)) {
6562 phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
6564 if (unlikely(!phba->vpi_ids)) {
6566 goto free_vpi_bmask;
6569 for (i = 0; i < count; i++)
6570 phba->vpi_ids[i] = base + i;
6573 count = phba->sli4_hba.max_cfg_param.max_xri;
6575 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6576 "3281 Invalid provisioning of "
6581 base = phba->sli4_hba.max_cfg_param.xri_base;
6582 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6583 phba->sli4_hba.xri_bmask = kcalloc(longs,
6584 sizeof(unsigned long),
6586 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6590 phba->sli4_hba.max_cfg_param.xri_used = 0;
6591 phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
6593 if (unlikely(!phba->sli4_hba.xri_ids)) {
6595 goto free_xri_bmask;
6598 for (i = 0; i < count; i++)
6599 phba->sli4_hba.xri_ids[i] = base + i;
6602 count = phba->sli4_hba.max_cfg_param.max_vfi;
6604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6605 "3282 Invalid provisioning of "
6610 base = phba->sli4_hba.max_cfg_param.vfi_base;
6611 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6612 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6613 sizeof(unsigned long),
6615 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6619 phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
6621 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6623 goto free_vfi_bmask;
6626 for (i = 0; i < count; i++)
6627 phba->sli4_hba.vfi_ids[i] = base + i;
6630 * Mark all resources ready. An HBA reset doesn't need
6631 * to reset the initialization.
6633 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6639 kfree(phba->sli4_hba.vfi_bmask);
6640 phba->sli4_hba.vfi_bmask = NULL;
6642 kfree(phba->sli4_hba.xri_ids);
6643 phba->sli4_hba.xri_ids = NULL;
6645 kfree(phba->sli4_hba.xri_bmask);
6646 phba->sli4_hba.xri_bmask = NULL;
6648 kfree(phba->vpi_ids);
6649 phba->vpi_ids = NULL;
6651 kfree(phba->vpi_bmask);
6652 phba->vpi_bmask = NULL;
6654 kfree(phba->sli4_hba.rpi_ids);
6655 phba->sli4_hba.rpi_ids = NULL;
6657 kfree(phba->sli4_hba.rpi_bmask);
6658 phba->sli4_hba.rpi_bmask = NULL;
6664 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6665 * @phba: Pointer to HBA context object.
6667 * This function allocates the number of elements for the specified
6671 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6673 if (phba->sli4_hba.extents_in_use) {
6674 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6675 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6676 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6677 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6679 kfree(phba->vpi_bmask);
6680 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6681 kfree(phba->vpi_ids);
6682 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6683 kfree(phba->sli4_hba.xri_bmask);
6684 kfree(phba->sli4_hba.xri_ids);
6685 kfree(phba->sli4_hba.vfi_bmask);
6686 kfree(phba->sli4_hba.vfi_ids);
6687 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6688 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6695 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6696 * @phba: Pointer to HBA context object.
6697 * @type: The resource extent type.
6698 * @extnt_count: buffer to hold port extent count response
6699 * @extnt_size: buffer to hold port extent size response.
6701 * This function calls the port to read the host allocated extents
6702 * for a particular type.
6705 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6706 uint16_t *extnt_cnt, uint16_t *extnt_size)
6710 uint16_t curr_blks = 0;
6711 uint32_t req_len, emb_len;
6712 uint32_t alloc_len, mbox_tmo;
6713 struct list_head *blk_list_head;
6714 struct lpfc_rsrc_blks *rsrc_blk;
6716 void *virtaddr = NULL;
6717 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6718 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6719 union lpfc_sli4_cfg_shdr *shdr;
6722 case LPFC_RSC_TYPE_FCOE_VPI:
6723 blk_list_head = &phba->lpfc_vpi_blk_list;
6725 case LPFC_RSC_TYPE_FCOE_XRI:
6726 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6728 case LPFC_RSC_TYPE_FCOE_VFI:
6729 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6731 case LPFC_RSC_TYPE_FCOE_RPI:
6732 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6738 /* Count the number of extents currently allocatd for this type. */
6739 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6740 if (curr_blks == 0) {
6742 * The GET_ALLOCATED mailbox does not return the size,
6743 * just the count. The size should be just the size
6744 * stored in the current allocated block and all sizes
6745 * for an extent type are the same so set the return
6748 *extnt_size = rsrc_blk->rsrc_size;
6754 * Calculate the size of an embedded mailbox. The uint32_t
6755 * accounts for extents-specific word.
6757 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6761 * Presume the allocation and response will fit into an embedded
6762 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6764 emb = LPFC_SLI4_MBX_EMBED;
6766 if (req_len > emb_len) {
6767 req_len = curr_blks * sizeof(uint16_t) +
6768 sizeof(union lpfc_sli4_cfg_shdr) +
6770 emb = LPFC_SLI4_MBX_NEMBED;
6773 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6776 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6778 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6779 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6781 if (alloc_len < req_len) {
6782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6783 "2983 Allocated DMA memory size (x%x) is "
6784 "less than the requested DMA memory "
6785 "size (x%x)\n", alloc_len, req_len);
6789 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6795 if (!phba->sli4_hba.intr_enable)
6796 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6798 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6799 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6808 * Figure out where the response is located. Then get local pointers
6809 * to the response data. The port does not guarantee to respond to
6810 * all extents counts request so update the local variable with the
6811 * allocated count from the port.
6813 if (emb == LPFC_SLI4_MBX_EMBED) {
6814 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6815 shdr = &rsrc_ext->header.cfg_shdr;
6816 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6818 virtaddr = mbox->sge_array->addr[0];
6819 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6820 shdr = &n_rsrc->cfg_shdr;
6821 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6824 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6825 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6826 "2984 Failed to read allocated resources "
6827 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6829 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6830 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6835 lpfc_sli4_mbox_cmd_free(phba, mbox);
6840 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
6841 * @phba: pointer to lpfc hba data structure.
6842 * @pring: Pointer to driver SLI ring object.
6843 * @sgl_list: linked link of sgl buffers to post
6844 * @cnt: number of linked list buffers
6846 * This routine walks the list of buffers that have been allocated and
6847 * repost them to the port by using SGL block post. This is needed after a
6848 * pci_function_reset/warm_start or start. It attempts to construct blocks
6849 * of buffer sgls which contains contiguous xris and uses the non-embedded
6850 * SGL block post mailbox commands to post them to the port. For single
6851 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6852 * mailbox command for posting.
6854 * Returns: 0 = success, non-zero failure.
6857 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6858 struct list_head *sgl_list, int cnt)
6860 struct lpfc_sglq *sglq_entry = NULL;
6861 struct lpfc_sglq *sglq_entry_next = NULL;
6862 struct lpfc_sglq *sglq_entry_first = NULL;
6863 int status, total_cnt;
6864 int post_cnt = 0, num_posted = 0, block_cnt = 0;
6865 int last_xritag = NO_XRI;
6866 LIST_HEAD(prep_sgl_list);
6867 LIST_HEAD(blck_sgl_list);
6868 LIST_HEAD(allc_sgl_list);
6869 LIST_HEAD(post_sgl_list);
6870 LIST_HEAD(free_sgl_list);
6872 spin_lock_irq(&phba->hbalock);
6873 spin_lock(&phba->sli4_hba.sgl_list_lock);
6874 list_splice_init(sgl_list, &allc_sgl_list);
6875 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6876 spin_unlock_irq(&phba->hbalock);
6879 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6880 &allc_sgl_list, list) {
6881 list_del_init(&sglq_entry->list);
6883 if ((last_xritag != NO_XRI) &&
6884 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6885 /* a hole in xri block, form a sgl posting block */
6886 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6887 post_cnt = block_cnt - 1;
6888 /* prepare list for next posting block */
6889 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6892 /* prepare list for next posting block */
6893 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6894 /* enough sgls for non-embed sgl mbox command */
6895 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6896 list_splice_init(&prep_sgl_list,
6898 post_cnt = block_cnt;
6904 /* keep track of last sgl's xritag */
6905 last_xritag = sglq_entry->sli4_xritag;
6907 /* end of repost sgl list condition for buffers */
6908 if (num_posted == total_cnt) {
6909 if (post_cnt == 0) {
6910 list_splice_init(&prep_sgl_list,
6912 post_cnt = block_cnt;
6913 } else if (block_cnt == 1) {
6914 status = lpfc_sli4_post_sgl(phba,
6915 sglq_entry->phys, 0,
6916 sglq_entry->sli4_xritag);
6918 /* successful, put sgl to posted list */
6919 list_add_tail(&sglq_entry->list,
6922 /* Failure, put sgl to free list */
6923 lpfc_printf_log(phba, KERN_WARNING,
6925 "3159 Failed to post "
6926 "sgl, xritag:x%x\n",
6927 sglq_entry->sli4_xritag);
6928 list_add_tail(&sglq_entry->list,
6935 /* continue until a nembed page worth of sgls */
6939 /* post the buffer list sgls as a block */
6940 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
6944 /* success, put sgl list to posted sgl list */
6945 list_splice_init(&blck_sgl_list, &post_sgl_list);
6947 /* Failure, put sgl list to free sgl list */
6948 sglq_entry_first = list_first_entry(&blck_sgl_list,
6951 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6952 "3160 Failed to post sgl-list, "
6954 sglq_entry_first->sli4_xritag,
6955 (sglq_entry_first->sli4_xritag +
6957 list_splice_init(&blck_sgl_list, &free_sgl_list);
6958 total_cnt -= post_cnt;
6961 /* don't reset xirtag due to hole in xri block */
6963 last_xritag = NO_XRI;
6965 /* reset sgl post count for next round of posting */
6969 /* free the sgls failed to post */
6970 lpfc_free_sgl_list(phba, &free_sgl_list);
6972 /* push sgls posted to the available list */
6973 if (!list_empty(&post_sgl_list)) {
6974 spin_lock_irq(&phba->hbalock);
6975 spin_lock(&phba->sli4_hba.sgl_list_lock);
6976 list_splice_init(&post_sgl_list, sgl_list);
6977 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6978 spin_unlock_irq(&phba->hbalock);
6980 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6981 "3161 Failure to post sgl to port.\n");
6985 /* return the number of XRIs actually posted */
6990 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
6994 len = sizeof(struct lpfc_mbx_set_host_data) -
6995 sizeof(struct lpfc_sli4_cfg_mhdr);
6996 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6997 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
6998 LPFC_SLI4_MBX_EMBED);
7000 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
7001 mbox->u.mqe.un.set_host_data.param_len =
7002 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
7003 snprintf(mbox->u.mqe.un.set_host_data.data,
7004 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
7005 "Linux %s v"LPFC_DRIVER_VERSION,
7006 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
7010 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
7011 struct lpfc_queue *drq, int count, int idx)
7014 struct lpfc_rqe hrqe;
7015 struct lpfc_rqe drqe;
7016 struct lpfc_rqb *rqbp;
7017 unsigned long flags;
7018 struct rqb_dmabuf *rqb_buffer;
7019 LIST_HEAD(rqb_buf_list);
7021 spin_lock_irqsave(&phba->hbalock, flags);
7023 for (i = 0; i < count; i++) {
7024 /* IF RQ is already full, don't bother */
7025 if (rqbp->buffer_count + i >= rqbp->entry_count - 1)
7027 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
7030 rqb_buffer->hrq = hrq;
7031 rqb_buffer->drq = drq;
7032 rqb_buffer->idx = idx;
7033 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
7035 while (!list_empty(&rqb_buf_list)) {
7036 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
7039 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
7040 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
7041 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
7042 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
7043 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
7045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7046 "6421 Cannot post to HRQ %d: %x %x %x "
7054 rqbp->rqb_free_buffer(phba, rqb_buffer);
7056 list_add_tail(&rqb_buffer->hbuf.list,
7057 &rqbp->rqb_buffer_list);
7058 rqbp->buffer_count++;
7061 spin_unlock_irqrestore(&phba->hbalock, flags);
7066 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
7067 * @phba: Pointer to HBA context object.
7069 * This function is the main SLI4 device initialization PCI function. This
7070 * function is called by the HBA initialization code, HBA reset code and
7071 * HBA error attention handler code. Caller is not required to hold any
7075 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
7078 LPFC_MBOXQ_t *mboxq;
7079 struct lpfc_mqe *mqe;
7082 uint32_t ftr_rsp = 0;
7083 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
7084 struct lpfc_vport *vport = phba->pport;
7085 struct lpfc_dmabuf *mp;
7086 struct lpfc_rqb *rqbp;
7088 /* Perform a PCI function reset to start from clean */
7089 rc = lpfc_pci_function_reset(phba);
7093 /* Check the HBA Host Status Register for readyness */
7094 rc = lpfc_sli4_post_status_check(phba);
7098 spin_lock_irq(&phba->hbalock);
7099 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
7100 spin_unlock_irq(&phba->hbalock);
7104 * Allocate a single mailbox container for initializing the
7107 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7111 /* Issue READ_REV to collect vpd and FW information. */
7112 vpd_size = SLI4_PAGE_SIZE;
7113 vpd = kzalloc(vpd_size, GFP_KERNEL);
7119 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
7125 mqe = &mboxq->u.mqe;
7126 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
7127 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
7128 phba->hba_flag |= HBA_FCOE_MODE;
7129 phba->fcp_embed_io = 0; /* SLI4 FC support only */
7131 phba->hba_flag &= ~HBA_FCOE_MODE;
7134 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
7136 phba->hba_flag |= HBA_FIP_SUPPORT;
7138 phba->hba_flag &= ~HBA_FIP_SUPPORT;
7140 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
7142 if (phba->sli_rev != LPFC_SLI_REV4) {
7143 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7144 "0376 READ_REV Error. SLI Level %d "
7145 "FCoE enabled %d\n",
7146 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
7153 * Continue initialization with default values even if driver failed
7154 * to read FCoE param config regions, only read parameters if the
7157 if (phba->hba_flag & HBA_FCOE_MODE &&
7158 lpfc_sli4_read_fcoe_params(phba))
7159 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
7160 "2570 Failed to read FCoE parameters\n");
7163 * Retrieve sli4 device physical port name, failure of doing it
7164 * is considered as non-fatal.
7166 rc = lpfc_sli4_retrieve_pport_name(phba);
7168 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7169 "3080 Successful retrieving SLI4 device "
7170 "physical port name: %s.\n", phba->Port);
7173 * Evaluate the read rev and vpd data. Populate the driver
7174 * state with the results. If this routine fails, the failure
7175 * is not fatal as the driver will use generic values.
7177 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
7178 if (unlikely(!rc)) {
7179 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7180 "0377 Error %d parsing vpd. "
7181 "Using defaults.\n", rc);
7186 /* Save information as VPD data */
7187 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
7188 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
7191 * This is because first G7 ASIC doesn't support the standard
7192 * 0x5a NVME cmd descriptor type/subtype
7194 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7195 LPFC_SLI_INTF_IF_TYPE_6) &&
7196 (phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
7197 (phba->vpd.rev.smRev == 0) &&
7198 (phba->cfg_nvme_embed_cmd == 1))
7199 phba->cfg_nvme_embed_cmd = 0;
7201 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
7202 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
7204 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
7206 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
7208 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
7210 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
7211 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
7212 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
7213 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
7214 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
7215 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
7216 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7217 "(%d):0380 READ_REV Status x%x "
7218 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
7219 mboxq->vport ? mboxq->vport->vpi : 0,
7220 bf_get(lpfc_mqe_status, mqe),
7221 phba->vpd.rev.opFwName,
7222 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
7223 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
7225 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
7226 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
7227 if (phba->pport->cfg_lun_queue_depth > rc) {
7228 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7229 "3362 LUN queue depth changed from %d to %d\n",
7230 phba->pport->cfg_lun_queue_depth, rc);
7231 phba->pport->cfg_lun_queue_depth = rc;
7234 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7235 LPFC_SLI_INTF_IF_TYPE_0) {
7236 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
7237 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7238 if (rc == MBX_SUCCESS) {
7239 phba->hba_flag |= HBA_RECOVERABLE_UE;
7240 /* Set 1Sec interval to detect UE */
7241 phba->eratt_poll_interval = 1;
7242 phba->sli4_hba.ue_to_sr = bf_get(
7243 lpfc_mbx_set_feature_UESR,
7244 &mboxq->u.mqe.un.set_feature);
7245 phba->sli4_hba.ue_to_rp = bf_get(
7246 lpfc_mbx_set_feature_UERP,
7247 &mboxq->u.mqe.un.set_feature);
7251 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
7252 /* Enable MDS Diagnostics only if the SLI Port supports it */
7253 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
7254 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7255 if (rc != MBX_SUCCESS)
7256 phba->mds_diags_support = 0;
7260 * Discover the port's supported feature set and match it against the
7263 lpfc_request_features(phba, mboxq);
7264 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7271 * The port must support FCP initiator mode as this is the
7272 * only mode running in the host.
7274 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
7275 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7276 "0378 No support for fcpi mode.\n");
7280 /* Performance Hints are ONLY for FCoE */
7281 if (phba->hba_flag & HBA_FCOE_MODE) {
7282 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
7283 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
7285 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
7289 * If the port cannot support the host's requested features
7290 * then turn off the global config parameters to disable the
7291 * feature in the driver. This is not a fatal error.
7293 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
7294 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
7295 phba->cfg_enable_bg = 0;
7296 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
7301 if (phba->max_vpi && phba->cfg_enable_npiv &&
7302 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7306 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7307 "0379 Feature Mismatch Data: x%08x %08x "
7308 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
7309 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
7310 phba->cfg_enable_npiv, phba->max_vpi);
7311 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
7312 phba->cfg_enable_bg = 0;
7313 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7314 phba->cfg_enable_npiv = 0;
7317 /* These SLI3 features are assumed in SLI4 */
7318 spin_lock_irq(&phba->hbalock);
7319 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
7320 spin_unlock_irq(&phba->hbalock);
7323 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
7324 * calls depends on these resources to complete port setup.
7326 rc = lpfc_sli4_alloc_resource_identifiers(phba);
7328 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7329 "2920 Failed to alloc Resource IDs "
7334 lpfc_set_host_data(phba, mboxq);
7336 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7338 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7339 "2134 Failed to set host os driver version %x",
7343 /* Read the port's service parameters. */
7344 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
7346 phba->link_state = LPFC_HBA_ERROR;
7351 mboxq->vport = vport;
7352 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7353 mp = (struct lpfc_dmabuf *) mboxq->context1;
7354 if (rc == MBX_SUCCESS) {
7355 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
7360 * This memory was allocated by the lpfc_read_sparam routine. Release
7361 * it to the mbuf pool.
7363 lpfc_mbuf_free(phba, mp->virt, mp->phys);
7365 mboxq->context1 = NULL;
7367 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7368 "0382 READ_SPARAM command failed "
7369 "status %d, mbxStatus x%x\n",
7370 rc, bf_get(lpfc_mqe_status, mqe));
7371 phba->link_state = LPFC_HBA_ERROR;
7376 lpfc_update_vport_wwn(vport);
7378 /* Update the fc_host data structures with new wwn. */
7379 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
7380 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
7382 /* Create all the SLI4 queues */
7383 rc = lpfc_sli4_queue_create(phba);
7385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7386 "3089 Failed to allocate queues\n");
7390 /* Set up all the queues to the device */
7391 rc = lpfc_sli4_queue_setup(phba);
7393 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7394 "0381 Error %d during queue setup.\n ", rc);
7395 goto out_stop_timers;
7397 /* Initialize the driver internal SLI layer lists. */
7398 lpfc_sli4_setup(phba);
7399 lpfc_sli4_queue_init(phba);
7401 /* update host els xri-sgl sizes and mappings */
7402 rc = lpfc_sli4_els_sgl_update(phba);
7404 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7405 "1400 Failed to update xri-sgl size and "
7406 "mapping: %d\n", rc);
7407 goto out_destroy_queue;
7410 /* register the els sgl pool to the port */
7411 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
7412 phba->sli4_hba.els_xri_cnt);
7413 if (unlikely(rc < 0)) {
7414 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7415 "0582 Error %d during els sgl post "
7418 goto out_destroy_queue;
7420 phba->sli4_hba.els_xri_cnt = rc;
7422 if (phba->nvmet_support) {
7423 /* update host nvmet xri-sgl sizes and mappings */
7424 rc = lpfc_sli4_nvmet_sgl_update(phba);
7426 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7427 "6308 Failed to update nvmet-sgl size "
7428 "and mapping: %d\n", rc);
7429 goto out_destroy_queue;
7432 /* register the nvmet sgl pool to the port */
7433 rc = lpfc_sli4_repost_sgl_list(
7435 &phba->sli4_hba.lpfc_nvmet_sgl_list,
7436 phba->sli4_hba.nvmet_xri_cnt);
7437 if (unlikely(rc < 0)) {
7438 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7439 "3117 Error %d during nvmet "
7442 goto out_destroy_queue;
7444 phba->sli4_hba.nvmet_xri_cnt = rc;
7446 cnt = phba->cfg_iocb_cnt * 1024;
7447 /* We need 1 iocbq for every SGL, for IO processing */
7448 cnt += phba->sli4_hba.nvmet_xri_cnt;
7450 /* update host scsi xri-sgl sizes and mappings */
7451 rc = lpfc_sli4_scsi_sgl_update(phba);
7453 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7454 "6309 Failed to update scsi-sgl size "
7455 "and mapping: %d\n", rc);
7456 goto out_destroy_queue;
7459 /* update host nvme xri-sgl sizes and mappings */
7460 rc = lpfc_sli4_nvme_sgl_update(phba);
7462 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7463 "6082 Failed to update nvme-sgl size "
7464 "and mapping: %d\n", rc);
7465 goto out_destroy_queue;
7468 cnt = phba->cfg_iocb_cnt * 1024;
7471 if (!phba->sli.iocbq_lookup) {
7472 /* Initialize and populate the iocb list per host */
7473 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7474 "2821 initialize iocb list %d total %d\n",
7475 phba->cfg_iocb_cnt, cnt);
7476 rc = lpfc_init_iocb_list(phba, cnt);
7478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7479 "1413 Failed to init iocb list.\n");
7480 goto out_destroy_queue;
7484 if (phba->nvmet_support)
7485 lpfc_nvmet_create_targetport(phba);
7487 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
7488 /* Post initial buffers to all RQs created */
7489 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
7490 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
7491 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
7492 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
7493 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
7494 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
7495 rqbp->buffer_count = 0;
7497 lpfc_post_rq_buffer(
7498 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
7499 phba->sli4_hba.nvmet_mrq_data[i],
7500 phba->cfg_nvmet_mrq_post, i);
7504 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
7505 /* register the allocated scsi sgl pool to the port */
7506 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
7508 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7509 "0383 Error %d during scsi sgl post "
7511 /* Some Scsi buffers were moved to abort scsi list */
7512 /* A pci function reset will repost them */
7514 goto out_destroy_queue;
7518 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
7519 (phba->nvmet_support == 0)) {
7521 /* register the allocated nvme sgl pool to the port */
7522 rc = lpfc_repost_nvme_sgl_list(phba);
7524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7525 "6116 Error %d during nvme sgl post "
7527 /* Some NVME buffers were moved to abort nvme list */
7528 /* A pci function reset will repost them */
7530 goto out_destroy_queue;
7534 /* Post the rpi header region to the device. */
7535 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7537 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7538 "0393 Error %d during rpi post operation\n",
7541 goto out_destroy_queue;
7543 lpfc_sli4_node_prep(phba);
7545 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
7546 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
7548 * The FC Port needs to register FCFI (index 0)
7550 lpfc_reg_fcfi(phba, mboxq);
7551 mboxq->vport = phba->pport;
7552 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7553 if (rc != MBX_SUCCESS)
7554 goto out_unset_queue;
7556 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7557 &mboxq->u.mqe.un.reg_fcfi);
7559 /* We are a NVME Target mode with MRQ > 1 */
7561 /* First register the FCFI */
7562 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7563 mboxq->vport = phba->pport;
7564 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7565 if (rc != MBX_SUCCESS)
7566 goto out_unset_queue;
7568 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7569 &mboxq->u.mqe.un.reg_fcfi_mrq);
7571 /* Next register the MRQs */
7572 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7573 mboxq->vport = phba->pport;
7574 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7575 if (rc != MBX_SUCCESS)
7576 goto out_unset_queue;
7579 /* Check if the port is configured to be disabled */
7580 lpfc_sli_read_link_ste(phba);
7583 /* Arm the CQs and then EQs on device */
7584 lpfc_sli4_arm_cqeq_intr(phba);
7586 /* Indicate device interrupt mode */
7587 phba->sli4_hba.intr_enable = 1;
7589 /* Allow asynchronous mailbox command to go through */
7590 spin_lock_irq(&phba->hbalock);
7591 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7592 spin_unlock_irq(&phba->hbalock);
7594 /* Post receive buffers to the device */
7595 lpfc_sli4_rb_setup(phba);
7597 /* Reset HBA FCF states after HBA reset */
7598 phba->fcf.fcf_flag = 0;
7599 phba->fcf.current_rec.flag = 0;
7601 /* Start the ELS watchdog timer */
7602 mod_timer(&vport->els_tmofunc,
7603 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
7605 /* Start heart beat timer */
7606 mod_timer(&phba->hb_tmofunc,
7607 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
7608 phba->hb_outstanding = 0;
7609 phba->last_completion_time = jiffies;
7611 /* Start error attention (ERATT) polling timer */
7612 mod_timer(&phba->eratt_poll,
7613 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
7615 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7616 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7617 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7619 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7620 "2829 This device supports "
7621 "Advanced Error Reporting (AER)\n");
7622 spin_lock_irq(&phba->hbalock);
7623 phba->hba_flag |= HBA_AER_ENABLED;
7624 spin_unlock_irq(&phba->hbalock);
7626 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7627 "2830 This device does not support "
7628 "Advanced Error Reporting (AER)\n");
7629 phba->cfg_aer_support = 0;
7635 * The port is ready, set the host's link state to LINK_DOWN
7636 * in preparation for link interrupts.
7638 spin_lock_irq(&phba->hbalock);
7639 phba->link_state = LPFC_LINK_DOWN;
7641 /* Check if physical ports are trunked */
7642 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
7643 phba->trunk_link.link0.state = LPFC_LINK_DOWN;
7644 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
7645 phba->trunk_link.link1.state = LPFC_LINK_DOWN;
7646 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
7647 phba->trunk_link.link2.state = LPFC_LINK_DOWN;
7648 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
7649 phba->trunk_link.link3.state = LPFC_LINK_DOWN;
7650 spin_unlock_irq(&phba->hbalock);
7652 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7653 (phba->hba_flag & LINK_DISABLED)) {
7654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7655 "3103 Adapter Link is disabled.\n");
7656 lpfc_down_link(phba, mboxq);
7657 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7658 if (rc != MBX_SUCCESS) {
7659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7660 "3104 Adapter failed to issue "
7661 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7662 goto out_unset_queue;
7664 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
7665 /* don't perform init_link on SLI4 FC port loopback test */
7666 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7667 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7669 goto out_unset_queue;
7672 mempool_free(mboxq, phba->mbox_mem_pool);
7675 /* Unset all the queues set up in this routine when error out */
7676 lpfc_sli4_queue_unset(phba);
7678 lpfc_free_iocb_list(phba);
7679 lpfc_sli4_queue_destroy(phba);
7681 lpfc_stop_hba_timers(phba);
7683 mempool_free(mboxq, phba->mbox_mem_pool);
7688 * lpfc_mbox_timeout - Timeout call back function for mbox timer
7689 * @ptr: context object - pointer to hba structure.
7691 * This is the callback function for mailbox timer. The mailbox
7692 * timer is armed when a new mailbox command is issued and the timer
7693 * is deleted when the mailbox complete. The function is called by
7694 * the kernel timer code when a mailbox does not complete within
7695 * expected time. This function wakes up the worker thread to
7696 * process the mailbox timeout and returns. All the processing is
7697 * done by the worker thread function lpfc_mbox_timeout_handler.
7700 lpfc_mbox_timeout(struct timer_list *t)
7702 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
7703 unsigned long iflag;
7704 uint32_t tmo_posted;
7706 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
7707 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
7709 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7710 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7713 lpfc_worker_wake_up(phba);
7718 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7720 * @phba: Pointer to HBA context object.
7722 * This function checks if any mailbox completions are present on the mailbox
7726 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7730 struct lpfc_queue *mcq;
7731 struct lpfc_mcqe *mcqe;
7732 bool pending_completions = false;
7735 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7738 /* Check for completions on mailbox completion queue */
7740 mcq = phba->sli4_hba.mbx_cq;
7741 idx = mcq->hba_index;
7742 qe_valid = mcq->qe_valid;
7743 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe) == qe_valid) {
7744 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
7745 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7746 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7747 pending_completions = true;
7750 idx = (idx + 1) % mcq->entry_count;
7751 if (mcq->hba_index == idx)
7754 /* if the index wrapped around, toggle the valid bit */
7755 if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
7756 qe_valid = (qe_valid) ? 0 : 1;
7758 return pending_completions;
7763 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7765 * @phba: Pointer to HBA context object.
7767 * For sli4, it is possible to miss an interrupt. As such mbox completions
7768 * maybe missed causing erroneous mailbox timeouts to occur. This function
7769 * checks to see if mbox completions are on the mailbox completion queue
7770 * and will process all the completions associated with the eq for the
7771 * mailbox completion queue.
7774 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7776 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
7778 struct lpfc_queue *fpeq = NULL;
7779 struct lpfc_eqe *eqe;
7782 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7785 /* Find the eq associated with the mcq */
7787 if (sli4_hba->hba_eq)
7788 for (eqidx = 0; eqidx < phba->io_channel_irqs; eqidx++)
7789 if (sli4_hba->hba_eq[eqidx]->queue_id ==
7790 sli4_hba->mbx_cq->assoc_qid) {
7791 fpeq = sli4_hba->hba_eq[eqidx];
7797 /* Turn off interrupts from this EQ */
7799 sli4_hba->sli4_eq_clr_intr(fpeq);
7801 /* Check to see if a mbox completion is pending */
7803 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7806 * If a mbox completion is pending, process all the events on EQ
7807 * associated with the mbox completion queue (this could include
7808 * mailbox commands, async events, els commands, receive queue data
7813 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
7814 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
7815 fpeq->EQ_processed++;
7818 /* Always clear and re-arm the EQ */
7820 sli4_hba->sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
7822 return mbox_pending;
7827 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
7828 * @phba: Pointer to HBA context object.
7830 * This function is called from worker thread when a mailbox command times out.
7831 * The caller is not required to hold any locks. This function will reset the
7832 * HBA and recover all the pending commands.
7835 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7837 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
7838 MAILBOX_t *mb = NULL;
7840 struct lpfc_sli *psli = &phba->sli;
7842 /* If the mailbox completed, process the completion and return */
7843 if (lpfc_sli4_process_missed_mbox_completions(phba))
7848 /* Check the pmbox pointer first. There is a race condition
7849 * between the mbox timeout handler getting executed in the
7850 * worklist and the mailbox actually completing. When this
7851 * race condition occurs, the mbox_active will be NULL.
7853 spin_lock_irq(&phba->hbalock);
7854 if (pmbox == NULL) {
7855 lpfc_printf_log(phba, KERN_WARNING,
7857 "0353 Active Mailbox cleared - mailbox timeout "
7859 spin_unlock_irq(&phba->hbalock);
7863 /* Mbox cmd <mbxCommand> timeout */
7864 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7865 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
7867 phba->pport->port_state,
7869 phba->sli.mbox_active);
7870 spin_unlock_irq(&phba->hbalock);
7872 /* Setting state unknown so lpfc_sli_abort_iocb_ring
7873 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
7874 * it to fail all outstanding SCSI IO.
7876 spin_lock_irq(&phba->pport->work_port_lock);
7877 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
7878 spin_unlock_irq(&phba->pport->work_port_lock);
7879 spin_lock_irq(&phba->hbalock);
7880 phba->link_state = LPFC_LINK_UNKNOWN;
7881 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7882 spin_unlock_irq(&phba->hbalock);
7884 lpfc_sli_abort_fcp_rings(phba);
7886 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7887 "0345 Resetting board due to mailbox timeout\n");
7889 /* Reset the HBA device */
7890 lpfc_reset_hba(phba);
7894 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
7895 * @phba: Pointer to HBA context object.
7896 * @pmbox: Pointer to mailbox object.
7897 * @flag: Flag indicating how the mailbox need to be processed.
7899 * This function is called by discovery code and HBA management code
7900 * to submit a mailbox command to firmware with SLI-3 interface spec. This
7901 * function gets the hbalock to protect the data structures.
7902 * The mailbox command can be submitted in polling mode, in which case
7903 * this function will wait in a polling loop for the completion of the
7905 * If the mailbox is submitted in no_wait mode (not polling) the
7906 * function will submit the command and returns immediately without waiting
7907 * for the mailbox completion. The no_wait is supported only when HBA
7908 * is in SLI2/SLI3 mode - interrupts are enabled.
7909 * The SLI interface allows only one mailbox pending at a time. If the
7910 * mailbox is issued in polling mode and there is already a mailbox
7911 * pending, then the function will return an error. If the mailbox is issued
7912 * in NO_WAIT mode and there is a mailbox pending already, the function
7913 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
7914 * The sli layer owns the mailbox object until the completion of mailbox
7915 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
7916 * return codes the caller owns the mailbox command after the return of
7920 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
7924 struct lpfc_sli *psli = &phba->sli;
7925 uint32_t status, evtctr;
7926 uint32_t ha_copy, hc_copy;
7928 unsigned long timeout;
7929 unsigned long drvr_flag = 0;
7930 uint32_t word0, ldata;
7931 void __iomem *to_slim;
7932 int processing_queue = 0;
7934 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7936 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7937 /* processing mbox queue from intr_handler */
7938 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7939 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7942 processing_queue = 1;
7943 pmbox = lpfc_mbox_get(phba);
7945 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7950 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
7951 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
7953 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7954 lpfc_printf_log(phba, KERN_ERR,
7955 LOG_MBOX | LOG_VPORT,
7956 "1806 Mbox x%x failed. No vport\n",
7957 pmbox->u.mb.mbxCommand);
7959 goto out_not_finished;
7963 /* If the PCI channel is in offline state, do not post mbox. */
7964 if (unlikely(pci_channel_offline(phba->pcidev))) {
7965 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7966 goto out_not_finished;
7969 /* If HBA has a deferred error attention, fail the iocb. */
7970 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7971 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7972 goto out_not_finished;
7978 status = MBX_SUCCESS;
7980 if (phba->link_state == LPFC_HBA_ERROR) {
7981 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7983 /* Mbox command <mbxCommand> cannot issue */
7984 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7985 "(%d):0311 Mailbox command x%x cannot "
7986 "issue Data: x%x x%x\n",
7987 pmbox->vport ? pmbox->vport->vpi : 0,
7988 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7989 goto out_not_finished;
7992 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
7993 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
7994 !(hc_copy & HC_MBINT_ENA)) {
7995 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7996 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7997 "(%d):2528 Mailbox command x%x cannot "
7998 "issue Data: x%x x%x\n",
7999 pmbox->vport ? pmbox->vport->vpi : 0,
8000 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8001 goto out_not_finished;
8005 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8006 /* Polling for a mbox command when another one is already active
8007 * is not allowed in SLI. Also, the driver must have established
8008 * SLI2 mode to queue and process multiple mbox commands.
8011 if (flag & MBX_POLL) {
8012 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8014 /* Mbox command <mbxCommand> cannot issue */
8015 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8016 "(%d):2529 Mailbox command x%x "
8017 "cannot issue Data: x%x x%x\n",
8018 pmbox->vport ? pmbox->vport->vpi : 0,
8019 pmbox->u.mb.mbxCommand,
8020 psli->sli_flag, flag);
8021 goto out_not_finished;
8024 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
8025 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8026 /* Mbox command <mbxCommand> cannot issue */
8027 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8028 "(%d):2530 Mailbox command x%x "
8029 "cannot issue Data: x%x x%x\n",
8030 pmbox->vport ? pmbox->vport->vpi : 0,
8031 pmbox->u.mb.mbxCommand,
8032 psli->sli_flag, flag);
8033 goto out_not_finished;
8036 /* Another mailbox command is still being processed, queue this
8037 * command to be processed later.
8039 lpfc_mbox_put(phba, pmbox);
8041 /* Mbox cmd issue - BUSY */
8042 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8043 "(%d):0308 Mbox cmd issue - BUSY Data: "
8044 "x%x x%x x%x x%x\n",
8045 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
8047 phba->pport ? phba->pport->port_state : 0xff,
8048 psli->sli_flag, flag);
8050 psli->slistat.mbox_busy++;
8051 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8054 lpfc_debugfs_disc_trc(pmbox->vport,
8055 LPFC_DISC_TRC_MBOX_VPORT,
8056 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
8057 (uint32_t)mbx->mbxCommand,
8058 mbx->un.varWords[0], mbx->un.varWords[1]);
8061 lpfc_debugfs_disc_trc(phba->pport,
8063 "MBOX Bsy: cmd:x%x mb:x%x x%x",
8064 (uint32_t)mbx->mbxCommand,
8065 mbx->un.varWords[0], mbx->un.varWords[1]);
8071 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8073 /* If we are not polling, we MUST be in SLI2 mode */
8074 if (flag != MBX_POLL) {
8075 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
8076 (mbx->mbxCommand != MBX_KILL_BOARD)) {
8077 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8078 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8079 /* Mbox command <mbxCommand> cannot issue */
8080 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8081 "(%d):2531 Mailbox command x%x "
8082 "cannot issue Data: x%x x%x\n",
8083 pmbox->vport ? pmbox->vport->vpi : 0,
8084 pmbox->u.mb.mbxCommand,
8085 psli->sli_flag, flag);
8086 goto out_not_finished;
8088 /* timeout active mbox command */
8089 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8091 mod_timer(&psli->mbox_tmo, jiffies + timeout);
8094 /* Mailbox cmd <cmd> issue */
8095 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8096 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
8098 pmbox->vport ? pmbox->vport->vpi : 0,
8100 phba->pport ? phba->pport->port_state : 0xff,
8101 psli->sli_flag, flag);
8103 if (mbx->mbxCommand != MBX_HEARTBEAT) {
8105 lpfc_debugfs_disc_trc(pmbox->vport,
8106 LPFC_DISC_TRC_MBOX_VPORT,
8107 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8108 (uint32_t)mbx->mbxCommand,
8109 mbx->un.varWords[0], mbx->un.varWords[1]);
8112 lpfc_debugfs_disc_trc(phba->pport,
8114 "MBOX Send: cmd:x%x mb:x%x x%x",
8115 (uint32_t)mbx->mbxCommand,
8116 mbx->un.varWords[0], mbx->un.varWords[1]);
8120 psli->slistat.mbox_cmd++;
8121 evtctr = psli->slistat.mbox_event;
8123 /* next set own bit for the adapter and copy over command word */
8124 mbx->mbxOwner = OWN_CHIP;
8126 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8127 /* Populate mbox extension offset word. */
8128 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
8129 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8130 = (uint8_t *)phba->mbox_ext
8131 - (uint8_t *)phba->mbox;
8134 /* Copy the mailbox extension data */
8135 if (pmbox->in_ext_byte_len && pmbox->context2) {
8136 lpfc_sli_pcimem_bcopy(pmbox->context2,
8137 (uint8_t *)phba->mbox_ext,
8138 pmbox->in_ext_byte_len);
8140 /* Copy command data to host SLIM area */
8141 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
8143 /* Populate mbox extension offset word. */
8144 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
8145 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8146 = MAILBOX_HBA_EXT_OFFSET;
8148 /* Copy the mailbox extension data */
8149 if (pmbox->in_ext_byte_len && pmbox->context2)
8150 lpfc_memcpy_to_slim(phba->MBslimaddr +
8151 MAILBOX_HBA_EXT_OFFSET,
8152 pmbox->context2, pmbox->in_ext_byte_len);
8154 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8155 /* copy command data into host mbox for cmpl */
8156 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
8159 /* First copy mbox command data to HBA SLIM, skip past first
8161 to_slim = phba->MBslimaddr + sizeof (uint32_t);
8162 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
8163 MAILBOX_CMD_SIZE - sizeof (uint32_t));
8165 /* Next copy over first word, with mbxOwner set */
8166 ldata = *((uint32_t *)mbx);
8167 to_slim = phba->MBslimaddr;
8168 writel(ldata, to_slim);
8169 readl(to_slim); /* flush */
8171 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8172 /* switch over to host mailbox */
8173 psli->sli_flag |= LPFC_SLI_ACTIVE;
8180 /* Set up reference to mailbox command */
8181 psli->mbox_active = pmbox;
8182 /* Interrupt board to do it */
8183 writel(CA_MBATT, phba->CAregaddr);
8184 readl(phba->CAregaddr); /* flush */
8185 /* Don't wait for it to finish, just return */
8189 /* Set up null reference to mailbox command */
8190 psli->mbox_active = NULL;
8191 /* Interrupt board to do it */
8192 writel(CA_MBATT, phba->CAregaddr);
8193 readl(phba->CAregaddr); /* flush */
8195 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8196 /* First read mbox status word */
8197 word0 = *((uint32_t *)phba->mbox);
8198 word0 = le32_to_cpu(word0);
8200 /* First read mbox status word */
8201 if (lpfc_readl(phba->MBslimaddr, &word0)) {
8202 spin_unlock_irqrestore(&phba->hbalock,
8204 goto out_not_finished;
8208 /* Read the HBA Host Attention Register */
8209 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8210 spin_unlock_irqrestore(&phba->hbalock,
8212 goto out_not_finished;
8214 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8217 /* Wait for command to complete */
8218 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
8219 (!(ha_copy & HA_MBATT) &&
8220 (phba->link_state > LPFC_WARM_START))) {
8221 if (time_after(jiffies, timeout)) {
8222 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8223 spin_unlock_irqrestore(&phba->hbalock,
8225 goto out_not_finished;
8228 /* Check if we took a mbox interrupt while we were
8230 if (((word0 & OWN_CHIP) != OWN_CHIP)
8231 && (evtctr != psli->slistat.mbox_event))
8235 spin_unlock_irqrestore(&phba->hbalock,
8238 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8241 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8242 /* First copy command data */
8243 word0 = *((uint32_t *)phba->mbox);
8244 word0 = le32_to_cpu(word0);
8245 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
8248 /* Check real SLIM for any errors */
8249 slimword0 = readl(phba->MBslimaddr);
8250 slimmb = (MAILBOX_t *) & slimword0;
8251 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
8252 && slimmb->mbxStatus) {
8259 /* First copy command data */
8260 word0 = readl(phba->MBslimaddr);
8262 /* Read the HBA Host Attention Register */
8263 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8264 spin_unlock_irqrestore(&phba->hbalock,
8266 goto out_not_finished;
8270 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8271 /* copy results back to user */
8272 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
8274 /* Copy the mailbox extension data */
8275 if (pmbox->out_ext_byte_len && pmbox->context2) {
8276 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
8278 pmbox->out_ext_byte_len);
8281 /* First copy command data */
8282 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
8284 /* Copy the mailbox extension data */
8285 if (pmbox->out_ext_byte_len && pmbox->context2) {
8286 lpfc_memcpy_from_slim(pmbox->context2,
8288 MAILBOX_HBA_EXT_OFFSET,
8289 pmbox->out_ext_byte_len);
8293 writel(HA_MBATT, phba->HAregaddr);
8294 readl(phba->HAregaddr); /* flush */
8296 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8297 status = mbx->mbxStatus;
8300 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8304 if (processing_queue) {
8305 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
8306 lpfc_mbox_cmpl_put(phba, pmbox);
8308 return MBX_NOT_FINISHED;
8312 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
8313 * @phba: Pointer to HBA context object.
8315 * The function blocks the posting of SLI4 asynchronous mailbox commands from
8316 * the driver internal pending mailbox queue. It will then try to wait out the
8317 * possible outstanding mailbox command before return.
8320 * 0 - the outstanding mailbox command completed; otherwise, the wait for
8321 * the outstanding mailbox command timed out.
8324 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
8326 struct lpfc_sli *psli = &phba->sli;
8328 unsigned long timeout = 0;
8330 /* Mark the asynchronous mailbox command posting as blocked */
8331 spin_lock_irq(&phba->hbalock);
8332 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8333 /* Determine how long we might wait for the active mailbox
8334 * command to be gracefully completed by firmware.
8336 if (phba->sli.mbox_active)
8337 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
8338 phba->sli.mbox_active) *
8340 spin_unlock_irq(&phba->hbalock);
8342 /* Make sure the mailbox is really active */
8344 lpfc_sli4_process_missed_mbox_completions(phba);
8346 /* Wait for the outstnading mailbox command to complete */
8347 while (phba->sli.mbox_active) {
8348 /* Check active mailbox complete status every 2ms */
8350 if (time_after(jiffies, timeout)) {
8351 /* Timeout, marked the outstanding cmd not complete */
8357 /* Can not cleanly block async mailbox command, fails it */
8359 spin_lock_irq(&phba->hbalock);
8360 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8361 spin_unlock_irq(&phba->hbalock);
8367 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
8368 * @phba: Pointer to HBA context object.
8370 * The function unblocks and resume posting of SLI4 asynchronous mailbox
8371 * commands from the driver internal pending mailbox queue. It makes sure
8372 * that there is no outstanding mailbox command before resuming posting
8373 * asynchronous mailbox commands. If, for any reason, there is outstanding
8374 * mailbox command, it will try to wait it out before resuming asynchronous
8375 * mailbox command posting.
8378 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
8380 struct lpfc_sli *psli = &phba->sli;
8382 spin_lock_irq(&phba->hbalock);
8383 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8384 /* Asynchronous mailbox posting is not blocked, do nothing */
8385 spin_unlock_irq(&phba->hbalock);
8389 /* Outstanding synchronous mailbox command is guaranteed to be done,
8390 * successful or timeout, after timing-out the outstanding mailbox
8391 * command shall always be removed, so just unblock posting async
8392 * mailbox command and resume
8394 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8395 spin_unlock_irq(&phba->hbalock);
8397 /* wake up worker thread to post asynchronlous mailbox command */
8398 lpfc_worker_wake_up(phba);
8402 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
8403 * @phba: Pointer to HBA context object.
8404 * @mboxq: Pointer to mailbox object.
8406 * The function waits for the bootstrap mailbox register ready bit from
8407 * port for twice the regular mailbox command timeout value.
8409 * 0 - no timeout on waiting for bootstrap mailbox register ready.
8410 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
8413 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8416 unsigned long timeout;
8417 struct lpfc_register bmbx_reg;
8419 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
8423 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
8424 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
8428 if (time_after(jiffies, timeout))
8429 return MBXERR_ERROR;
8430 } while (!db_ready);
8436 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
8437 * @phba: Pointer to HBA context object.
8438 * @mboxq: Pointer to mailbox object.
8440 * The function posts a mailbox to the port. The mailbox is expected
8441 * to be comletely filled in and ready for the port to operate on it.
8442 * This routine executes a synchronous completion operation on the
8443 * mailbox by polling for its completion.
8445 * The caller must not be holding any locks when calling this routine.
8448 * MBX_SUCCESS - mailbox posted successfully
8449 * Any of the MBX error values.
8452 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8454 int rc = MBX_SUCCESS;
8455 unsigned long iflag;
8456 uint32_t mcqe_status;
8458 struct lpfc_sli *psli = &phba->sli;
8459 struct lpfc_mqe *mb = &mboxq->u.mqe;
8460 struct lpfc_bmbx_create *mbox_rgn;
8461 struct dma_address *dma_address;
8464 * Only one mailbox can be active to the bootstrap mailbox region
8465 * at a time and there is no queueing provided.
8467 spin_lock_irqsave(&phba->hbalock, iflag);
8468 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8469 spin_unlock_irqrestore(&phba->hbalock, iflag);
8470 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8471 "(%d):2532 Mailbox command x%x (x%x/x%x) "
8472 "cannot issue Data: x%x x%x\n",
8473 mboxq->vport ? mboxq->vport->vpi : 0,
8474 mboxq->u.mb.mbxCommand,
8475 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8476 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8477 psli->sli_flag, MBX_POLL);
8478 return MBXERR_ERROR;
8480 /* The server grabs the token and owns it until release */
8481 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8482 phba->sli.mbox_active = mboxq;
8483 spin_unlock_irqrestore(&phba->hbalock, iflag);
8485 /* wait for bootstrap mbox register for readyness */
8486 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8491 * Initialize the bootstrap memory region to avoid stale data areas
8492 * in the mailbox post. Then copy the caller's mailbox contents to
8493 * the bmbx mailbox region.
8495 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
8496 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
8497 lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
8498 sizeof(struct lpfc_mqe));
8500 /* Post the high mailbox dma address to the port and wait for ready. */
8501 dma_address = &phba->sli4_hba.bmbx.dma_address;
8502 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
8504 /* wait for bootstrap mbox register for hi-address write done */
8505 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8509 /* Post the low mailbox dma address to the port. */
8510 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
8512 /* wait for bootstrap mbox register for low address write done */
8513 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8518 * Read the CQ to ensure the mailbox has completed.
8519 * If so, update the mailbox status so that the upper layers
8520 * can complete the request normally.
8522 lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
8523 sizeof(struct lpfc_mqe));
8524 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
8525 lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
8526 sizeof(struct lpfc_mcqe));
8527 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
8529 * When the CQE status indicates a failure and the mailbox status
8530 * indicates success then copy the CQE status into the mailbox status
8531 * (and prefix it with x4000).
8533 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
8534 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
8535 bf_set(lpfc_mqe_status, mb,
8536 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8539 lpfc_sli4_swap_str(phba, mboxq);
8541 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8542 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
8543 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8544 " x%x x%x CQ: x%x x%x x%x x%x\n",
8545 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8546 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8547 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8548 bf_get(lpfc_mqe_status, mb),
8549 mb->un.mb_words[0], mb->un.mb_words[1],
8550 mb->un.mb_words[2], mb->un.mb_words[3],
8551 mb->un.mb_words[4], mb->un.mb_words[5],
8552 mb->un.mb_words[6], mb->un.mb_words[7],
8553 mb->un.mb_words[8], mb->un.mb_words[9],
8554 mb->un.mb_words[10], mb->un.mb_words[11],
8555 mb->un.mb_words[12], mboxq->mcqe.word0,
8556 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
8557 mboxq->mcqe.trailer);
8559 /* We are holding the token, no needed for lock when release */
8560 spin_lock_irqsave(&phba->hbalock, iflag);
8561 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8562 phba->sli.mbox_active = NULL;
8563 spin_unlock_irqrestore(&phba->hbalock, iflag);
8568 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
8569 * @phba: Pointer to HBA context object.
8570 * @pmbox: Pointer to mailbox object.
8571 * @flag: Flag indicating how the mailbox need to be processed.
8573 * This function is called by discovery code and HBA management code to submit
8574 * a mailbox command to firmware with SLI-4 interface spec.
8576 * Return codes the caller owns the mailbox command after the return of the
8580 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
8583 struct lpfc_sli *psli = &phba->sli;
8584 unsigned long iflags;
8587 /* dump from issue mailbox command if setup */
8588 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
8590 rc = lpfc_mbox_dev_check(phba);
8592 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8593 "(%d):2544 Mailbox command x%x (x%x/x%x) "
8594 "cannot issue Data: x%x x%x\n",
8595 mboxq->vport ? mboxq->vport->vpi : 0,
8596 mboxq->u.mb.mbxCommand,
8597 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8598 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8599 psli->sli_flag, flag);
8600 goto out_not_finished;
8603 /* Detect polling mode and jump to a handler */
8604 if (!phba->sli4_hba.intr_enable) {
8605 if (flag == MBX_POLL)
8606 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8609 if (rc != MBX_SUCCESS)
8610 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8611 "(%d):2541 Mailbox command x%x "
8612 "(x%x/x%x) failure: "
8613 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8615 mboxq->vport ? mboxq->vport->vpi : 0,
8616 mboxq->u.mb.mbxCommand,
8617 lpfc_sli_config_mbox_subsys_get(phba,
8619 lpfc_sli_config_mbox_opcode_get(phba,
8621 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8622 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8623 bf_get(lpfc_mcqe_ext_status,
8625 psli->sli_flag, flag);
8627 } else if (flag == MBX_POLL) {
8628 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8629 "(%d):2542 Try to issue mailbox command "
8630 "x%x (x%x/x%x) synchronously ahead of async "
8631 "mailbox command queue: x%x x%x\n",
8632 mboxq->vport ? mboxq->vport->vpi : 0,
8633 mboxq->u.mb.mbxCommand,
8634 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8635 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8636 psli->sli_flag, flag);
8637 /* Try to block the asynchronous mailbox posting */
8638 rc = lpfc_sli4_async_mbox_block(phba);
8640 /* Successfully blocked, now issue sync mbox cmd */
8641 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8642 if (rc != MBX_SUCCESS)
8643 lpfc_printf_log(phba, KERN_WARNING,
8645 "(%d):2597 Sync Mailbox command "
8646 "x%x (x%x/x%x) failure: "
8647 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8649 mboxq->vport ? mboxq->vport->vpi : 0,
8650 mboxq->u.mb.mbxCommand,
8651 lpfc_sli_config_mbox_subsys_get(phba,
8653 lpfc_sli_config_mbox_opcode_get(phba,
8655 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8656 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8657 bf_get(lpfc_mcqe_ext_status,
8659 psli->sli_flag, flag);
8660 /* Unblock the async mailbox posting afterward */
8661 lpfc_sli4_async_mbox_unblock(phba);
8666 /* Now, interrupt mode asynchrous mailbox command */
8667 rc = lpfc_mbox_cmd_check(phba, mboxq);
8669 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8670 "(%d):2543 Mailbox command x%x (x%x/x%x) "
8671 "cannot issue Data: x%x x%x\n",
8672 mboxq->vport ? mboxq->vport->vpi : 0,
8673 mboxq->u.mb.mbxCommand,
8674 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8675 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8676 psli->sli_flag, flag);
8677 goto out_not_finished;
8680 /* Put the mailbox command to the driver internal FIFO */
8681 psli->slistat.mbox_busy++;
8682 spin_lock_irqsave(&phba->hbalock, iflags);
8683 lpfc_mbox_put(phba, mboxq);
8684 spin_unlock_irqrestore(&phba->hbalock, iflags);
8685 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8686 "(%d):0354 Mbox cmd issue - Enqueue Data: "
8687 "x%x (x%x/x%x) x%x x%x x%x\n",
8688 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8689 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8690 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8691 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8692 phba->pport->port_state,
8693 psli->sli_flag, MBX_NOWAIT);
8694 /* Wake up worker thread to transport mailbox command from head */
8695 lpfc_worker_wake_up(phba);
8700 return MBX_NOT_FINISHED;
8704 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8705 * @phba: Pointer to HBA context object.
8707 * This function is called by worker thread to send a mailbox command to
8708 * SLI4 HBA firmware.
8712 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8714 struct lpfc_sli *psli = &phba->sli;
8715 LPFC_MBOXQ_t *mboxq;
8716 int rc = MBX_SUCCESS;
8717 unsigned long iflags;
8718 struct lpfc_mqe *mqe;
8721 /* Check interrupt mode before post async mailbox command */
8722 if (unlikely(!phba->sli4_hba.intr_enable))
8723 return MBX_NOT_FINISHED;
8725 /* Check for mailbox command service token */
8726 spin_lock_irqsave(&phba->hbalock, iflags);
8727 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8728 spin_unlock_irqrestore(&phba->hbalock, iflags);
8729 return MBX_NOT_FINISHED;
8731 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8732 spin_unlock_irqrestore(&phba->hbalock, iflags);
8733 return MBX_NOT_FINISHED;
8735 if (unlikely(phba->sli.mbox_active)) {
8736 spin_unlock_irqrestore(&phba->hbalock, iflags);
8737 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8738 "0384 There is pending active mailbox cmd\n");
8739 return MBX_NOT_FINISHED;
8741 /* Take the mailbox command service token */
8742 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8744 /* Get the next mailbox command from head of queue */
8745 mboxq = lpfc_mbox_get(phba);
8747 /* If no more mailbox command waiting for post, we're done */
8749 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8750 spin_unlock_irqrestore(&phba->hbalock, iflags);
8753 phba->sli.mbox_active = mboxq;
8754 spin_unlock_irqrestore(&phba->hbalock, iflags);
8756 /* Check device readiness for posting mailbox command */
8757 rc = lpfc_mbox_dev_check(phba);
8759 /* Driver clean routine will clean up pending mailbox */
8760 goto out_not_finished;
8762 /* Prepare the mbox command to be posted */
8763 mqe = &mboxq->u.mqe;
8764 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8766 /* Start timer for the mbox_tmo and log some mailbox post messages */
8767 mod_timer(&psli->mbox_tmo, (jiffies +
8768 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
8770 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8771 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
8773 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8774 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8775 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8776 phba->pport->port_state, psli->sli_flag);
8778 if (mbx_cmnd != MBX_HEARTBEAT) {
8780 lpfc_debugfs_disc_trc(mboxq->vport,
8781 LPFC_DISC_TRC_MBOX_VPORT,
8782 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8783 mbx_cmnd, mqe->un.mb_words[0],
8784 mqe->un.mb_words[1]);
8786 lpfc_debugfs_disc_trc(phba->pport,
8788 "MBOX Send: cmd:x%x mb:x%x x%x",
8789 mbx_cmnd, mqe->un.mb_words[0],
8790 mqe->un.mb_words[1]);
8793 psli->slistat.mbox_cmd++;
8795 /* Post the mailbox command to the port */
8796 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8797 if (rc != MBX_SUCCESS) {
8798 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8799 "(%d):2533 Mailbox command x%x (x%x/x%x) "
8800 "cannot issue Data: x%x x%x\n",
8801 mboxq->vport ? mboxq->vport->vpi : 0,
8802 mboxq->u.mb.mbxCommand,
8803 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8804 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8805 psli->sli_flag, MBX_NOWAIT);
8806 goto out_not_finished;
8812 spin_lock_irqsave(&phba->hbalock, iflags);
8813 if (phba->sli.mbox_active) {
8814 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8815 __lpfc_mbox_cmpl_put(phba, mboxq);
8816 /* Release the token */
8817 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8818 phba->sli.mbox_active = NULL;
8820 spin_unlock_irqrestore(&phba->hbalock, iflags);
8822 return MBX_NOT_FINISHED;
8826 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8827 * @phba: Pointer to HBA context object.
8828 * @pmbox: Pointer to mailbox object.
8829 * @flag: Flag indicating how the mailbox need to be processed.
8831 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8832 * the API jump table function pointer from the lpfc_hba struct.
8834 * Return codes the caller owns the mailbox command after the return of the
8838 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
8840 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
8844 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
8845 * @phba: The hba struct for which this call is being executed.
8846 * @dev_grp: The HBA PCI-Device group number.
8848 * This routine sets up the mbox interface API function jump table in @phba
8850 * Returns: 0 - success, -ENODEV - failure.
8853 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8857 case LPFC_PCI_DEV_LP:
8858 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
8859 phba->lpfc_sli_handle_slow_ring_event =
8860 lpfc_sli_handle_slow_ring_event_s3;
8861 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
8862 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
8863 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
8865 case LPFC_PCI_DEV_OC:
8866 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
8867 phba->lpfc_sli_handle_slow_ring_event =
8868 lpfc_sli_handle_slow_ring_event_s4;
8869 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
8870 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
8871 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
8874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8875 "1420 Invalid HBA PCI-device group: 0x%x\n",
8884 * __lpfc_sli_ringtx_put - Add an iocb to the txq
8885 * @phba: Pointer to HBA context object.
8886 * @pring: Pointer to driver SLI ring object.
8887 * @piocb: Pointer to address of newly added command iocb.
8889 * This function is called with hbalock held to add a command
8890 * iocb to the txq when SLI layer cannot submit the command iocb
8894 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8895 struct lpfc_iocbq *piocb)
8897 lockdep_assert_held(&phba->hbalock);
8898 /* Insert the caller's iocb in the txq tail for later processing. */
8899 list_add_tail(&piocb->list, &pring->txq);
8903 * lpfc_sli_next_iocb - Get the next iocb in the txq
8904 * @phba: Pointer to HBA context object.
8905 * @pring: Pointer to driver SLI ring object.
8906 * @piocb: Pointer to address of newly added command iocb.
8908 * This function is called with hbalock held before a new
8909 * iocb is submitted to the firmware. This function checks
8910 * txq to flush the iocbs in txq to Firmware before
8911 * submitting new iocbs to the Firmware.
8912 * If there are iocbs in the txq which need to be submitted
8913 * to firmware, lpfc_sli_next_iocb returns the first element
8914 * of the txq after dequeuing it from txq.
8915 * If there is no iocb in the txq then the function will return
8916 * *piocb and *piocb is set to NULL. Caller needs to check
8917 * *piocb to find if there are more commands in the txq.
8919 static struct lpfc_iocbq *
8920 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8921 struct lpfc_iocbq **piocb)
8923 struct lpfc_iocbq * nextiocb;
8925 lockdep_assert_held(&phba->hbalock);
8927 nextiocb = lpfc_sli_ringtx_get(phba, pring);
8937 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
8938 * @phba: Pointer to HBA context object.
8939 * @ring_number: SLI ring number to issue iocb on.
8940 * @piocb: Pointer to command iocb.
8941 * @flag: Flag indicating if this command can be put into txq.
8943 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
8944 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
8945 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
8946 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
8947 * this function allows only iocbs for posting buffers. This function finds
8948 * next available slot in the command ring and posts the command to the
8949 * available slot and writes the port attention register to request HBA start
8950 * processing new iocb. If there is no slot available in the ring and
8951 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
8952 * the function returns IOCB_BUSY.
8954 * This function is called with hbalock held. The function will return success
8955 * after it successfully submit the iocb to firmware or after adding to the
8959 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
8960 struct lpfc_iocbq *piocb, uint32_t flag)
8962 struct lpfc_iocbq *nextiocb;
8964 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
8966 lockdep_assert_held(&phba->hbalock);
8968 if (piocb->iocb_cmpl && (!piocb->vport) &&
8969 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
8970 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
8971 lpfc_printf_log(phba, KERN_ERR,
8972 LOG_SLI | LOG_VPORT,
8973 "1807 IOCB x%x failed. No vport\n",
8974 piocb->iocb.ulpCommand);
8980 /* If the PCI channel is in offline state, do not post iocbs. */
8981 if (unlikely(pci_channel_offline(phba->pcidev)))
8984 /* If HBA has a deferred error attention, fail the iocb. */
8985 if (unlikely(phba->hba_flag & DEFER_ERATT))
8989 * We should never get an IOCB if we are in a < LINK_DOWN state
8991 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
8995 * Check to see if we are blocking IOCB processing because of a
8996 * outstanding event.
8998 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
9001 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
9003 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
9004 * can be issued if the link is not up.
9006 switch (piocb->iocb.ulpCommand) {
9007 case CMD_GEN_REQUEST64_CR:
9008 case CMD_GEN_REQUEST64_CX:
9009 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
9010 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
9011 FC_RCTL_DD_UNSOL_CMD) ||
9012 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
9013 MENLO_TRANSPORT_TYPE))
9017 case CMD_QUE_RING_BUF_CN:
9018 case CMD_QUE_RING_BUF64_CN:
9020 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
9021 * completion, iocb_cmpl MUST be 0.
9023 if (piocb->iocb_cmpl)
9024 piocb->iocb_cmpl = NULL;
9026 case CMD_CREATE_XRI_CR:
9027 case CMD_CLOSE_XRI_CN:
9028 case CMD_CLOSE_XRI_CX:
9035 * For FCP commands, we must be in a state where we can process link
9038 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
9039 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
9043 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
9044 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
9045 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
9048 lpfc_sli_update_ring(phba, pring);
9050 lpfc_sli_update_full_ring(phba, pring);
9053 return IOCB_SUCCESS;
9058 pring->stats.iocb_cmd_delay++;
9062 if (!(flag & SLI_IOCB_RET_IOCB)) {
9063 __lpfc_sli_ringtx_put(phba, pring, piocb);
9064 return IOCB_SUCCESS;
9071 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
9072 * @phba: Pointer to HBA context object.
9073 * @piocb: Pointer to command iocb.
9074 * @sglq: Pointer to the scatter gather queue object.
9076 * This routine converts the bpl or bde that is in the IOCB
9077 * to a sgl list for the sli4 hardware. The physical address
9078 * of the bpl/bde is converted back to a virtual address.
9079 * If the IOCB contains a BPL then the list of BDE's is
9080 * converted to sli4_sge's. If the IOCB contains a single
9081 * BDE then it is converted to a single sli_sge.
9082 * The IOCB is still in cpu endianess so the contents of
9083 * the bpl can be used without byte swapping.
9085 * Returns valid XRI = Success, NO_XRI = Failure.
9088 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
9089 struct lpfc_sglq *sglq)
9091 uint16_t xritag = NO_XRI;
9092 struct ulp_bde64 *bpl = NULL;
9093 struct ulp_bde64 bde;
9094 struct sli4_sge *sgl = NULL;
9095 struct lpfc_dmabuf *dmabuf;
9099 uint32_t offset = 0; /* accumulated offset in the sg request list */
9100 int inbound = 0; /* number of sg reply entries inbound from firmware */
9102 if (!piocbq || !sglq)
9105 sgl = (struct sli4_sge *)sglq->sgl;
9106 icmd = &piocbq->iocb;
9107 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
9108 return sglq->sli4_xritag;
9109 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9110 numBdes = icmd->un.genreq64.bdl.bdeSize /
9111 sizeof(struct ulp_bde64);
9112 /* The addrHigh and addrLow fields within the IOCB
9113 * have not been byteswapped yet so there is no
9114 * need to swap them back.
9116 if (piocbq->context3)
9117 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
9121 bpl = (struct ulp_bde64 *)dmabuf->virt;
9125 for (i = 0; i < numBdes; i++) {
9126 /* Should already be byte swapped. */
9127 sgl->addr_hi = bpl->addrHigh;
9128 sgl->addr_lo = bpl->addrLow;
9130 sgl->word2 = le32_to_cpu(sgl->word2);
9131 if ((i+1) == numBdes)
9132 bf_set(lpfc_sli4_sge_last, sgl, 1);
9134 bf_set(lpfc_sli4_sge_last, sgl, 0);
9135 /* swap the size field back to the cpu so we
9136 * can assign it to the sgl.
9138 bde.tus.w = le32_to_cpu(bpl->tus.w);
9139 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
9140 /* The offsets in the sgl need to be accumulated
9141 * separately for the request and reply lists.
9142 * The request is always first, the reply follows.
9144 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
9145 /* add up the reply sg entries */
9146 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
9148 /* first inbound? reset the offset */
9151 bf_set(lpfc_sli4_sge_offset, sgl, offset);
9152 bf_set(lpfc_sli4_sge_type, sgl,
9153 LPFC_SGE_TYPE_DATA);
9154 offset += bde.tus.f.bdeSize;
9156 sgl->word2 = cpu_to_le32(sgl->word2);
9160 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
9161 /* The addrHigh and addrLow fields of the BDE have not
9162 * been byteswapped yet so they need to be swapped
9163 * before putting them in the sgl.
9166 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
9168 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
9169 sgl->word2 = le32_to_cpu(sgl->word2);
9170 bf_set(lpfc_sli4_sge_last, sgl, 1);
9171 sgl->word2 = cpu_to_le32(sgl->word2);
9173 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
9175 return sglq->sli4_xritag;
9179 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
9180 * @phba: Pointer to HBA context object.
9181 * @piocb: Pointer to command iocb.
9182 * @wqe: Pointer to the work queue entry.
9184 * This routine converts the iocb command to its Work Queue Entry
9185 * equivalent. The wqe pointer should not have any fields set when
9186 * this routine is called because it will memcpy over them.
9187 * This routine does not set the CQ_ID or the WQEC bits in the
9190 * Returns: 0 = Success, IOCB_ERROR = Failure.
9193 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
9194 union lpfc_wqe128 *wqe)
9196 uint32_t xmit_len = 0, total_len = 0;
9200 uint8_t command_type = ELS_COMMAND_NON_FIP;
9203 uint16_t abrt_iotag;
9204 struct lpfc_iocbq *abrtiocbq;
9205 struct ulp_bde64 *bpl = NULL;
9206 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
9208 struct ulp_bde64 bde;
9209 struct lpfc_nodelist *ndlp;
9213 fip = phba->hba_flag & HBA_FIP_SUPPORT;
9214 /* The fcp commands will set command type */
9215 if (iocbq->iocb_flag & LPFC_IO_FCP)
9216 command_type = FCP_COMMAND;
9217 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
9218 command_type = ELS_COMMAND_FIP;
9220 command_type = ELS_COMMAND_NON_FIP;
9222 if (phba->fcp_embed_io)
9223 memset(wqe, 0, sizeof(union lpfc_wqe128));
9224 /* Some of the fields are in the right position already */
9225 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
9226 if (iocbq->iocb.ulpCommand != CMD_SEND_FRAME) {
9227 /* The ct field has moved so reset */
9228 wqe->generic.wqe_com.word7 = 0;
9229 wqe->generic.wqe_com.word10 = 0;
9232 abort_tag = (uint32_t) iocbq->iotag;
9233 xritag = iocbq->sli4_xritag;
9234 /* words0-2 bpl convert bde */
9235 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9236 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9237 sizeof(struct ulp_bde64);
9238 bpl = (struct ulp_bde64 *)
9239 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
9243 /* Should already be byte swapped. */
9244 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
9245 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
9246 /* swap the size field back to the cpu so we
9247 * can assign it to the sgl.
9249 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
9250 xmit_len = wqe->generic.bde.tus.f.bdeSize;
9252 for (i = 0; i < numBdes; i++) {
9253 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9254 total_len += bde.tus.f.bdeSize;
9257 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
9259 iocbq->iocb.ulpIoTag = iocbq->iotag;
9260 cmnd = iocbq->iocb.ulpCommand;
9262 switch (iocbq->iocb.ulpCommand) {
9263 case CMD_ELS_REQUEST64_CR:
9264 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
9265 ndlp = iocbq->context_un.ndlp;
9267 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9268 if (!iocbq->iocb.ulpLe) {
9269 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9270 "2007 Only Limited Edition cmd Format"
9271 " supported 0x%x\n",
9272 iocbq->iocb.ulpCommand);
9276 wqe->els_req.payload_len = xmit_len;
9277 /* Els_reguest64 has a TMO */
9278 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
9279 iocbq->iocb.ulpTimeout);
9280 /* Need a VF for word 4 set the vf bit*/
9281 bf_set(els_req64_vf, &wqe->els_req, 0);
9282 /* And a VFID for word 12 */
9283 bf_set(els_req64_vfid, &wqe->els_req, 0);
9284 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9285 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9286 iocbq->iocb.ulpContext);
9287 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
9288 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
9289 /* CCP CCPE PV PRI in word10 were set in the memcpy */
9290 if (command_type == ELS_COMMAND_FIP)
9291 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
9292 >> LPFC_FIP_ELS_ID_SHIFT);
9293 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9294 iocbq->context2)->virt);
9295 if_type = bf_get(lpfc_sli_intf_if_type,
9296 &phba->sli4_hba.sli_intf);
9297 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9298 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
9299 *pcmd == ELS_CMD_SCR ||
9300 *pcmd == ELS_CMD_FDISC ||
9301 *pcmd == ELS_CMD_LOGO ||
9302 *pcmd == ELS_CMD_PLOGI)) {
9303 bf_set(els_req64_sp, &wqe->els_req, 1);
9304 bf_set(els_req64_sid, &wqe->els_req,
9305 iocbq->vport->fc_myDID);
9306 if ((*pcmd == ELS_CMD_FLOGI) &&
9307 !(phba->fc_topology ==
9308 LPFC_TOPOLOGY_LOOP))
9309 bf_set(els_req64_sid, &wqe->els_req, 0);
9310 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
9311 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9312 phba->vpi_ids[iocbq->vport->vpi]);
9313 } else if (pcmd && iocbq->context1) {
9314 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
9315 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9316 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9319 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
9320 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9321 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
9322 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
9323 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
9324 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
9325 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9326 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
9327 wqe->els_req.max_response_payload_len = total_len - xmit_len;
9329 case CMD_XMIT_SEQUENCE64_CX:
9330 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
9331 iocbq->iocb.un.ulpWord[3]);
9332 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
9333 iocbq->iocb.unsli3.rcvsli3.ox_id);
9334 /* The entire sequence is transmitted for this IOCB */
9335 xmit_len = total_len;
9336 cmnd = CMD_XMIT_SEQUENCE64_CR;
9337 if (phba->link_flag & LS_LOOPBACK_MODE)
9338 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
9339 case CMD_XMIT_SEQUENCE64_CR:
9340 /* word3 iocb=io_tag32 wqe=reserved */
9341 wqe->xmit_sequence.rsvd3 = 0;
9342 /* word4 relative_offset memcpy */
9343 /* word5 r_ctl/df_ctl memcpy */
9344 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
9345 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
9346 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
9347 LPFC_WQE_IOD_WRITE);
9348 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
9349 LPFC_WQE_LENLOC_WORD12);
9350 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
9351 wqe->xmit_sequence.xmit_len = xmit_len;
9352 command_type = OTHER_COMMAND;
9354 case CMD_XMIT_BCAST64_CN:
9355 /* word3 iocb=iotag32 wqe=seq_payload_len */
9356 wqe->xmit_bcast64.seq_payload_len = xmit_len;
9357 /* word4 iocb=rsvd wqe=rsvd */
9358 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
9359 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
9360 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
9361 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9362 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
9363 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
9364 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
9365 LPFC_WQE_LENLOC_WORD3);
9366 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
9368 case CMD_FCP_IWRITE64_CR:
9369 command_type = FCP_COMMAND_DATA_OUT;
9370 /* word3 iocb=iotag wqe=payload_offset_len */
9371 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9372 bf_set(payload_offset_len, &wqe->fcp_iwrite,
9373 xmit_len + sizeof(struct fcp_rsp));
9374 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
9376 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9377 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9378 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
9379 iocbq->iocb.ulpFCP2Rcvy);
9380 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
9381 /* Always open the exchange */
9382 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
9383 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
9384 LPFC_WQE_LENLOC_WORD4);
9385 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
9386 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
9387 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9388 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
9389 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
9390 if (iocbq->priority) {
9391 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9392 (iocbq->priority << 1));
9394 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9395 (phba->cfg_XLanePriority << 1));
9398 /* Note, word 10 is already initialized to 0 */
9400 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9401 if (phba->cfg_enable_pbde)
9402 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 1);
9404 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
9406 if (phba->fcp_embed_io) {
9407 struct lpfc_scsi_buf *lpfc_cmd;
9408 struct sli4_sge *sgl;
9409 struct fcp_cmnd *fcp_cmnd;
9412 /* 128 byte wqe support here */
9414 lpfc_cmd = iocbq->context1;
9415 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
9416 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9418 /* Word 0-2 - FCP_CMND */
9419 wqe->generic.bde.tus.f.bdeFlags =
9420 BUFF_TYPE_BDE_IMMED;
9421 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9422 wqe->generic.bde.addrHigh = 0;
9423 wqe->generic.bde.addrLow = 88; /* Word 22 */
9425 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
9426 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
9428 /* Word 22-29 FCP CMND Payload */
9429 ptr = &wqe->words[22];
9430 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9433 case CMD_FCP_IREAD64_CR:
9434 /* word3 iocb=iotag wqe=payload_offset_len */
9435 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9436 bf_set(payload_offset_len, &wqe->fcp_iread,
9437 xmit_len + sizeof(struct fcp_rsp));
9438 bf_set(cmd_buff_len, &wqe->fcp_iread,
9440 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9441 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9442 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
9443 iocbq->iocb.ulpFCP2Rcvy);
9444 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
9445 /* Always open the exchange */
9446 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
9447 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
9448 LPFC_WQE_LENLOC_WORD4);
9449 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
9450 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
9451 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9452 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
9453 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
9454 if (iocbq->priority) {
9455 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9456 (iocbq->priority << 1));
9458 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9459 (phba->cfg_XLanePriority << 1));
9462 /* Note, word 10 is already initialized to 0 */
9464 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9465 if (phba->cfg_enable_pbde)
9466 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 1);
9468 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
9470 if (phba->fcp_embed_io) {
9471 struct lpfc_scsi_buf *lpfc_cmd;
9472 struct sli4_sge *sgl;
9473 struct fcp_cmnd *fcp_cmnd;
9476 /* 128 byte wqe support here */
9478 lpfc_cmd = iocbq->context1;
9479 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
9480 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9482 /* Word 0-2 - FCP_CMND */
9483 wqe->generic.bde.tus.f.bdeFlags =
9484 BUFF_TYPE_BDE_IMMED;
9485 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9486 wqe->generic.bde.addrHigh = 0;
9487 wqe->generic.bde.addrLow = 88; /* Word 22 */
9489 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
9490 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
9492 /* Word 22-29 FCP CMND Payload */
9493 ptr = &wqe->words[22];
9494 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9497 case CMD_FCP_ICMND64_CR:
9498 /* word3 iocb=iotag wqe=payload_offset_len */
9499 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9500 bf_set(payload_offset_len, &wqe->fcp_icmd,
9501 xmit_len + sizeof(struct fcp_rsp));
9502 bf_set(cmd_buff_len, &wqe->fcp_icmd,
9504 /* word3 iocb=IO_TAG wqe=reserved */
9505 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
9506 /* Always open the exchange */
9507 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
9508 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
9509 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
9510 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
9511 LPFC_WQE_LENLOC_NONE);
9512 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
9513 iocbq->iocb.ulpFCP2Rcvy);
9514 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9515 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
9516 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
9517 if (iocbq->priority) {
9518 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9519 (iocbq->priority << 1));
9521 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9522 (phba->cfg_XLanePriority << 1));
9525 /* Note, word 10 is already initialized to 0 */
9527 if (phba->fcp_embed_io) {
9528 struct lpfc_scsi_buf *lpfc_cmd;
9529 struct sli4_sge *sgl;
9530 struct fcp_cmnd *fcp_cmnd;
9533 /* 128 byte wqe support here */
9535 lpfc_cmd = iocbq->context1;
9536 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
9537 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9539 /* Word 0-2 - FCP_CMND */
9540 wqe->generic.bde.tus.f.bdeFlags =
9541 BUFF_TYPE_BDE_IMMED;
9542 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9543 wqe->generic.bde.addrHigh = 0;
9544 wqe->generic.bde.addrLow = 88; /* Word 22 */
9546 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
9547 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
9549 /* Word 22-29 FCP CMND Payload */
9550 ptr = &wqe->words[22];
9551 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9554 case CMD_GEN_REQUEST64_CR:
9555 /* For this command calculate the xmit length of the
9559 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9560 sizeof(struct ulp_bde64);
9561 for (i = 0; i < numBdes; i++) {
9562 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9563 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
9565 xmit_len += bde.tus.f.bdeSize;
9567 /* word3 iocb=IO_TAG wqe=request_payload_len */
9568 wqe->gen_req.request_payload_len = xmit_len;
9569 /* word4 iocb=parameter wqe=relative_offset memcpy */
9570 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
9571 /* word6 context tag copied in memcpy */
9572 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
9573 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9575 "2015 Invalid CT %x command 0x%x\n",
9576 ct, iocbq->iocb.ulpCommand);
9579 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
9580 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
9581 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
9582 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
9583 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
9584 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
9585 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9586 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
9587 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
9588 command_type = OTHER_COMMAND;
9590 case CMD_XMIT_ELS_RSP64_CX:
9591 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9592 /* words0-2 BDE memcpy */
9593 /* word3 iocb=iotag32 wqe=response_payload_len */
9594 wqe->xmit_els_rsp.response_payload_len = xmit_len;
9596 wqe->xmit_els_rsp.word4 = 0;
9597 /* word5 iocb=rsvd wge=did */
9598 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
9599 iocbq->iocb.un.xseq64.xmit_els_remoteID);
9601 if_type = bf_get(lpfc_sli_intf_if_type,
9602 &phba->sli4_hba.sli_intf);
9603 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9604 if (iocbq->vport->fc_flag & FC_PT2PT) {
9605 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9606 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9607 iocbq->vport->fc_myDID);
9608 if (iocbq->vport->fc_myDID == Fabric_DID) {
9610 &wqe->xmit_els_rsp.wqe_dest, 0);
9614 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
9615 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9616 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
9617 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
9618 iocbq->iocb.unsli3.rcvsli3.ox_id);
9619 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
9620 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9621 phba->vpi_ids[iocbq->vport->vpi]);
9622 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9623 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9624 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9625 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9626 LPFC_WQE_LENLOC_WORD3);
9627 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
9628 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9629 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9630 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9631 iocbq->context2)->virt);
9632 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9633 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9634 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9635 iocbq->vport->fc_myDID);
9636 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9637 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9638 phba->vpi_ids[phba->pport->vpi]);
9640 command_type = OTHER_COMMAND;
9642 case CMD_CLOSE_XRI_CN:
9643 case CMD_ABORT_XRI_CN:
9644 case CMD_ABORT_XRI_CX:
9645 /* words 0-2 memcpy should be 0 rserved */
9646 /* port will send abts */
9647 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9648 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9649 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9650 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9654 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
9656 * The link is down, or the command was ELS_FIP
9657 * so the fw does not need to send abts
9660 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9662 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9663 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
9664 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9665 wqe->abort_cmd.rsrvd5 = 0;
9666 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
9667 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9668 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
9670 * The abort handler will send us CMD_ABORT_XRI_CN or
9671 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9673 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9674 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9675 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9676 LPFC_WQE_LENLOC_NONE);
9677 cmnd = CMD_ABORT_XRI_CX;
9678 command_type = OTHER_COMMAND;
9681 case CMD_XMIT_BLS_RSP64_CX:
9682 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9683 /* As BLS ABTS RSP WQE is very different from other WQEs,
9684 * we re-construct this WQE here based on information in
9685 * iocbq from scratch.
9687 memset(wqe, 0, sizeof(union lpfc_wqe));
9688 /* OX_ID is invariable to who sent ABTS to CT exchange */
9689 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
9690 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9691 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
9692 LPFC_ABTS_UNSOL_INT) {
9693 /* ABTS sent by initiator to CT exchange, the
9694 * RX_ID field will be filled with the newly
9695 * allocated responder XRI.
9697 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9698 iocbq->sli4_xritag);
9700 /* ABTS sent by responder to CT exchange, the
9701 * RX_ID field will be filled with the responder
9704 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9705 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
9707 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9708 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
9711 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9713 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9714 iocbq->iocb.ulpContext);
9715 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
9716 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
9717 phba->vpi_ids[phba->pport->vpi]);
9718 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9719 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9720 LPFC_WQE_LENLOC_NONE);
9721 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9722 command_type = OTHER_COMMAND;
9723 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9724 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9725 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9726 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9727 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9728 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9729 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9733 case CMD_SEND_FRAME:
9734 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9735 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9737 case CMD_XRI_ABORTED_CX:
9738 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
9739 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9740 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9741 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9742 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9744 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9745 "2014 Invalid command 0x%x\n",
9746 iocbq->iocb.ulpCommand);
9751 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9752 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9753 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9754 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9755 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9756 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9757 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9758 LPFC_IO_DIF_INSERT);
9759 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9760 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9761 wqe->generic.wqe_com.abort_tag = abort_tag;
9762 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9763 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9764 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9765 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9770 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9771 * @phba: Pointer to HBA context object.
9772 * @ring_number: SLI ring number to issue iocb on.
9773 * @piocb: Pointer to command iocb.
9774 * @flag: Flag indicating if this command can be put into txq.
9776 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9777 * an iocb command to an HBA with SLI-4 interface spec.
9779 * This function is called with hbalock held. The function will return success
9780 * after it successfully submit the iocb to firmware or after adding to the
9784 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9785 struct lpfc_iocbq *piocb, uint32_t flag)
9787 struct lpfc_sglq *sglq;
9788 union lpfc_wqe128 wqe;
9789 struct lpfc_queue *wq;
9790 struct lpfc_sli_ring *pring;
9793 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9794 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9795 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS)))
9796 wq = phba->sli4_hba.fcp_wq[piocb->hba_wqidx];
9798 wq = phba->sli4_hba.oas_wq;
9800 wq = phba->sli4_hba.els_wq;
9803 /* Get corresponding ring */
9807 * The WQE can be either 64 or 128 bytes,
9810 lockdep_assert_held(&phba->hbalock);
9812 if (piocb->sli4_xritag == NO_XRI) {
9813 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
9814 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
9817 if (!list_empty(&pring->txq)) {
9818 if (!(flag & SLI_IOCB_RET_IOCB)) {
9819 __lpfc_sli_ringtx_put(phba,
9821 return IOCB_SUCCESS;
9826 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
9828 if (!(flag & SLI_IOCB_RET_IOCB)) {
9829 __lpfc_sli_ringtx_put(phba,
9832 return IOCB_SUCCESS;
9838 } else if (piocb->iocb_flag & LPFC_IO_FCP)
9839 /* These IO's already have an XRI and a mapped sgl. */
9843 * This is a continuation of a commandi,(CX) so this
9844 * sglq is on the active list
9846 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
9852 piocb->sli4_lxritag = sglq->sli4_lxritag;
9853 piocb->sli4_xritag = sglq->sli4_xritag;
9854 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
9858 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
9861 if (lpfc_sli4_wq_put(wq, &wqe))
9863 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
9869 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
9871 * This routine wraps the actual lockless version for issusing IOCB function
9872 * pointer from the lpfc_hba struct.
9875 * IOCB_ERROR - Error
9876 * IOCB_SUCCESS - Success
9880 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9881 struct lpfc_iocbq *piocb, uint32_t flag)
9883 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9887 * lpfc_sli_api_table_setup - Set up sli api function jump table
9888 * @phba: The hba struct for which this call is being executed.
9889 * @dev_grp: The HBA PCI-Device group number.
9891 * This routine sets up the SLI interface API function jump table in @phba
9893 * Returns: 0 - success, -ENODEV - failure.
9896 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9900 case LPFC_PCI_DEV_LP:
9901 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
9902 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
9904 case LPFC_PCI_DEV_OC:
9905 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
9906 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
9909 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9910 "1419 Invalid HBA PCI-device group: 0x%x\n",
9915 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
9920 * lpfc_sli4_calc_ring - Calculates which ring to use
9921 * @phba: Pointer to HBA context object.
9922 * @piocb: Pointer to command iocb.
9924 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
9925 * hba_wqidx, thus we need to calculate the corresponding ring.
9926 * Since ABORTS must go on the same WQ of the command they are
9927 * aborting, we use command's hba_wqidx.
9929 struct lpfc_sli_ring *
9930 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
9932 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
9933 if (!(phba->cfg_fof) ||
9934 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
9935 if (unlikely(!phba->sli4_hba.fcp_wq))
9938 * for abort iocb hba_wqidx should already
9939 * be setup based on what work queue we used.
9941 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9943 lpfc_sli4_scmd_to_wqidx_distr(phba,
9945 piocb->hba_wqidx = piocb->hba_wqidx %
9946 phba->cfg_fcp_io_channel;
9948 return phba->sli4_hba.fcp_wq[piocb->hba_wqidx]->pring;
9950 if (unlikely(!phba->sli4_hba.oas_wq))
9952 piocb->hba_wqidx = 0;
9953 return phba->sli4_hba.oas_wq->pring;
9956 if (unlikely(!phba->sli4_hba.els_wq))
9958 piocb->hba_wqidx = 0;
9959 return phba->sli4_hba.els_wq->pring;
9964 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
9965 * @phba: Pointer to HBA context object.
9966 * @pring: Pointer to driver SLI ring object.
9967 * @piocb: Pointer to command iocb.
9968 * @flag: Flag indicating if this command can be put into txq.
9970 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
9971 * function. This function gets the hbalock and calls
9972 * __lpfc_sli_issue_iocb function and will return the error returned
9973 * by __lpfc_sli_issue_iocb function. This wrapper is used by
9974 * functions which do not hold hbalock.
9977 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9978 struct lpfc_iocbq *piocb, uint32_t flag)
9980 struct lpfc_hba_eq_hdl *hba_eq_hdl;
9981 struct lpfc_sli_ring *pring;
9982 struct lpfc_queue *fpeq;
9983 struct lpfc_eqe *eqe;
9984 unsigned long iflags;
9987 if (phba->sli_rev == LPFC_SLI_REV4) {
9988 pring = lpfc_sli4_calc_ring(phba, piocb);
9989 if (unlikely(pring == NULL))
9992 spin_lock_irqsave(&pring->ring_lock, iflags);
9993 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9994 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9996 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
9997 idx = piocb->hba_wqidx;
9998 hba_eq_hdl = &phba->sli4_hba.hba_eq_hdl[idx];
10000 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use)) {
10002 /* Get associated EQ with this index */
10003 fpeq = phba->sli4_hba.hba_eq[idx];
10005 /* Turn off interrupts from this EQ */
10006 phba->sli4_hba.sli4_eq_clr_intr(fpeq);
10009 * Process all the events on FCP EQ
10011 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
10012 lpfc_sli4_hba_handle_eqe(phba,
10014 fpeq->EQ_processed++;
10017 /* Always clear and re-arm the EQ */
10018 phba->sli4_hba.sli4_eq_release(fpeq,
10021 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
10024 /* For now, SLI2/3 will still use hbalock */
10025 spin_lock_irqsave(&phba->hbalock, iflags);
10026 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10027 spin_unlock_irqrestore(&phba->hbalock, iflags);
10033 * lpfc_extra_ring_setup - Extra ring setup function
10034 * @phba: Pointer to HBA context object.
10036 * This function is called while driver attaches with the
10037 * HBA to setup the extra ring. The extra ring is used
10038 * only when driver needs to support target mode functionality
10039 * or IP over FC functionalities.
10041 * This function is called with no lock held. SLI3 only.
10044 lpfc_extra_ring_setup( struct lpfc_hba *phba)
10046 struct lpfc_sli *psli;
10047 struct lpfc_sli_ring *pring;
10051 /* Adjust cmd/rsp ring iocb entries more evenly */
10053 /* Take some away from the FCP ring */
10054 pring = &psli->sli3_ring[LPFC_FCP_RING];
10055 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10056 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10057 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10058 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10060 /* and give them to the extra ring */
10061 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
10063 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10064 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10065 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10066 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10068 /* Setup default profile for this ring */
10069 pring->iotag_max = 4096;
10070 pring->num_mask = 1;
10071 pring->prt[0].profile = 0; /* Mask 0 */
10072 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
10073 pring->prt[0].type = phba->cfg_multi_ring_type;
10074 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
10078 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
10079 * @phba: Pointer to HBA context object.
10080 * @iocbq: Pointer to iocb object.
10082 * The async_event handler calls this routine when it receives
10083 * an ASYNC_STATUS_CN event from the port. The port generates
10084 * this event when an Abort Sequence request to an rport fails
10085 * twice in succession. The abort could be originated by the
10086 * driver or by the port. The ABTS could have been for an ELS
10087 * or FCP IO. The port only generates this event when an ABTS
10088 * fails to complete after one retry.
10091 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
10092 struct lpfc_iocbq *iocbq)
10094 struct lpfc_nodelist *ndlp = NULL;
10095 uint16_t rpi = 0, vpi = 0;
10096 struct lpfc_vport *vport = NULL;
10098 /* The rpi in the ulpContext is vport-sensitive. */
10099 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
10100 rpi = iocbq->iocb.ulpContext;
10102 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10103 "3092 Port generated ABTS async event "
10104 "on vpi %d rpi %d status 0x%x\n",
10105 vpi, rpi, iocbq->iocb.ulpStatus);
10107 vport = lpfc_find_vport_by_vpid(phba, vpi);
10110 ndlp = lpfc_findnode_rpi(vport, rpi);
10111 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
10114 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
10115 lpfc_sli_abts_recover_port(vport, ndlp);
10119 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10120 "3095 Event Context not found, no "
10121 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
10122 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
10126 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
10127 * @phba: pointer to HBA context object.
10128 * @ndlp: nodelist pointer for the impacted rport.
10129 * @axri: pointer to the wcqe containing the failed exchange.
10131 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
10132 * port. The port generates this event when an abort exchange request to an
10133 * rport fails twice in succession with no reply. The abort could be originated
10134 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
10137 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
10138 struct lpfc_nodelist *ndlp,
10139 struct sli4_wcqe_xri_aborted *axri)
10141 struct lpfc_vport *vport;
10142 uint32_t ext_status = 0;
10144 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
10145 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10146 "3115 Node Context not found, driver "
10147 "ignoring abts err event\n");
10151 vport = ndlp->vport;
10152 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10153 "3116 Port generated FCP XRI ABORT event on "
10154 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
10155 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
10156 bf_get(lpfc_wcqe_xa_xri, axri),
10157 bf_get(lpfc_wcqe_xa_status, axri),
10161 * Catch the ABTS protocol failure case. Older OCe FW releases returned
10162 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
10163 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
10165 ext_status = axri->parameter & IOERR_PARAM_MASK;
10166 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
10167 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
10168 lpfc_sli_abts_recover_port(vport, ndlp);
10172 * lpfc_sli_async_event_handler - ASYNC iocb handler function
10173 * @phba: Pointer to HBA context object.
10174 * @pring: Pointer to driver SLI ring object.
10175 * @iocbq: Pointer to iocb object.
10177 * This function is called by the slow ring event handler
10178 * function when there is an ASYNC event iocb in the ring.
10179 * This function is called with no lock held.
10180 * Currently this function handles only temperature related
10181 * ASYNC events. The function decodes the temperature sensor
10182 * event message and posts events for the management applications.
10185 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
10186 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
10190 struct temp_event temp_event_data;
10191 struct Scsi_Host *shost;
10194 icmd = &iocbq->iocb;
10195 evt_code = icmd->un.asyncstat.evt_code;
10197 switch (evt_code) {
10198 case ASYNC_TEMP_WARN:
10199 case ASYNC_TEMP_SAFE:
10200 temp_event_data.data = (uint32_t) icmd->ulpContext;
10201 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
10202 if (evt_code == ASYNC_TEMP_WARN) {
10203 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
10204 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10205 "0347 Adapter is very hot, please take "
10206 "corrective action. temperature : %d Celsius\n",
10207 (uint32_t) icmd->ulpContext);
10209 temp_event_data.event_code = LPFC_NORMAL_TEMP;
10210 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10211 "0340 Adapter temperature is OK now. "
10212 "temperature : %d Celsius\n",
10213 (uint32_t) icmd->ulpContext);
10216 /* Send temperature change event to applications */
10217 shost = lpfc_shost_from_vport(phba->pport);
10218 fc_host_post_vendor_event(shost, fc_get_event_number(),
10219 sizeof(temp_event_data), (char *) &temp_event_data,
10220 LPFC_NL_VENDOR_ID);
10222 case ASYNC_STATUS_CN:
10223 lpfc_sli_abts_err_handler(phba, iocbq);
10226 iocb_w = (uint32_t *) icmd;
10227 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10228 "0346 Ring %d handler: unexpected ASYNC_STATUS"
10230 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
10231 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
10232 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
10233 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
10234 pring->ringno, icmd->un.asyncstat.evt_code,
10235 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
10236 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
10237 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
10238 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
10246 * lpfc_sli4_setup - SLI ring setup function
10247 * @phba: Pointer to HBA context object.
10249 * lpfc_sli_setup sets up rings of the SLI interface with
10250 * number of iocbs per ring and iotags. This function is
10251 * called while driver attach to the HBA and before the
10252 * interrupts are enabled. So there is no need for locking.
10254 * This function always returns 0.
10257 lpfc_sli4_setup(struct lpfc_hba *phba)
10259 struct lpfc_sli_ring *pring;
10261 pring = phba->sli4_hba.els_wq->pring;
10262 pring->num_mask = LPFC_MAX_RING_MASK;
10263 pring->prt[0].profile = 0; /* Mask 0 */
10264 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10265 pring->prt[0].type = FC_TYPE_ELS;
10266 pring->prt[0].lpfc_sli_rcv_unsol_event =
10267 lpfc_els_unsol_event;
10268 pring->prt[1].profile = 0; /* Mask 1 */
10269 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10270 pring->prt[1].type = FC_TYPE_ELS;
10271 pring->prt[1].lpfc_sli_rcv_unsol_event =
10272 lpfc_els_unsol_event;
10273 pring->prt[2].profile = 0; /* Mask 2 */
10274 /* NameServer Inquiry */
10275 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10277 pring->prt[2].type = FC_TYPE_CT;
10278 pring->prt[2].lpfc_sli_rcv_unsol_event =
10279 lpfc_ct_unsol_event;
10280 pring->prt[3].profile = 0; /* Mask 3 */
10281 /* NameServer response */
10282 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10284 pring->prt[3].type = FC_TYPE_CT;
10285 pring->prt[3].lpfc_sli_rcv_unsol_event =
10286 lpfc_ct_unsol_event;
10291 * lpfc_sli_setup - SLI ring setup function
10292 * @phba: Pointer to HBA context object.
10294 * lpfc_sli_setup sets up rings of the SLI interface with
10295 * number of iocbs per ring and iotags. This function is
10296 * called while driver attach to the HBA and before the
10297 * interrupts are enabled. So there is no need for locking.
10299 * This function always returns 0. SLI3 only.
10302 lpfc_sli_setup(struct lpfc_hba *phba)
10304 int i, totiocbsize = 0;
10305 struct lpfc_sli *psli = &phba->sli;
10306 struct lpfc_sli_ring *pring;
10308 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
10309 psli->sli_flag = 0;
10311 psli->iocbq_lookup = NULL;
10312 psli->iocbq_lookup_len = 0;
10313 psli->last_iotag = 0;
10315 for (i = 0; i < psli->num_rings; i++) {
10316 pring = &psli->sli3_ring[i];
10318 case LPFC_FCP_RING: /* ring 0 - FCP */
10319 /* numCiocb and numRiocb are used in config_port */
10320 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
10321 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
10322 pring->sli.sli3.numCiocb +=
10323 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10324 pring->sli.sli3.numRiocb +=
10325 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10326 pring->sli.sli3.numCiocb +=
10327 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10328 pring->sli.sli3.numRiocb +=
10329 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10330 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10331 SLI3_IOCB_CMD_SIZE :
10332 SLI2_IOCB_CMD_SIZE;
10333 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10334 SLI3_IOCB_RSP_SIZE :
10335 SLI2_IOCB_RSP_SIZE;
10336 pring->iotag_ctr = 0;
10338 (phba->cfg_hba_queue_depth * 2);
10339 pring->fast_iotag = pring->iotag_max;
10340 pring->num_mask = 0;
10342 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
10343 /* numCiocb and numRiocb are used in config_port */
10344 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
10345 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
10346 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10347 SLI3_IOCB_CMD_SIZE :
10348 SLI2_IOCB_CMD_SIZE;
10349 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10350 SLI3_IOCB_RSP_SIZE :
10351 SLI2_IOCB_RSP_SIZE;
10352 pring->iotag_max = phba->cfg_hba_queue_depth;
10353 pring->num_mask = 0;
10355 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
10356 /* numCiocb and numRiocb are used in config_port */
10357 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
10358 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
10359 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10360 SLI3_IOCB_CMD_SIZE :
10361 SLI2_IOCB_CMD_SIZE;
10362 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10363 SLI3_IOCB_RSP_SIZE :
10364 SLI2_IOCB_RSP_SIZE;
10365 pring->fast_iotag = 0;
10366 pring->iotag_ctr = 0;
10367 pring->iotag_max = 4096;
10368 pring->lpfc_sli_rcv_async_status =
10369 lpfc_sli_async_event_handler;
10370 pring->num_mask = LPFC_MAX_RING_MASK;
10371 pring->prt[0].profile = 0; /* Mask 0 */
10372 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10373 pring->prt[0].type = FC_TYPE_ELS;
10374 pring->prt[0].lpfc_sli_rcv_unsol_event =
10375 lpfc_els_unsol_event;
10376 pring->prt[1].profile = 0; /* Mask 1 */
10377 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10378 pring->prt[1].type = FC_TYPE_ELS;
10379 pring->prt[1].lpfc_sli_rcv_unsol_event =
10380 lpfc_els_unsol_event;
10381 pring->prt[2].profile = 0; /* Mask 2 */
10382 /* NameServer Inquiry */
10383 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10385 pring->prt[2].type = FC_TYPE_CT;
10386 pring->prt[2].lpfc_sli_rcv_unsol_event =
10387 lpfc_ct_unsol_event;
10388 pring->prt[3].profile = 0; /* Mask 3 */
10389 /* NameServer response */
10390 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10392 pring->prt[3].type = FC_TYPE_CT;
10393 pring->prt[3].lpfc_sli_rcv_unsol_event =
10394 lpfc_ct_unsol_event;
10397 totiocbsize += (pring->sli.sli3.numCiocb *
10398 pring->sli.sli3.sizeCiocb) +
10399 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
10401 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
10402 /* Too many cmd / rsp ring entries in SLI2 SLIM */
10403 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
10404 "SLI2 SLIM Data: x%x x%lx\n",
10405 phba->brd_no, totiocbsize,
10406 (unsigned long) MAX_SLIM_IOCB_SIZE);
10408 if (phba->cfg_multi_ring_support == 2)
10409 lpfc_extra_ring_setup(phba);
10415 * lpfc_sli4_queue_init - Queue initialization function
10416 * @phba: Pointer to HBA context object.
10418 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
10419 * ring. This function also initializes ring indices of each ring.
10420 * This function is called during the initialization of the SLI
10421 * interface of an HBA.
10422 * This function is called with no lock held and always returns
10426 lpfc_sli4_queue_init(struct lpfc_hba *phba)
10428 struct lpfc_sli *psli;
10429 struct lpfc_sli_ring *pring;
10433 spin_lock_irq(&phba->hbalock);
10434 INIT_LIST_HEAD(&psli->mboxq);
10435 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10436 /* Initialize list headers for txq and txcmplq as double linked lists */
10437 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
10438 pring = phba->sli4_hba.fcp_wq[i]->pring;
10440 pring->ringno = LPFC_FCP_RING;
10441 INIT_LIST_HEAD(&pring->txq);
10442 INIT_LIST_HEAD(&pring->txcmplq);
10443 INIT_LIST_HEAD(&pring->iocb_continueq);
10444 spin_lock_init(&pring->ring_lock);
10446 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
10447 pring = phba->sli4_hba.nvme_wq[i]->pring;
10449 pring->ringno = LPFC_FCP_RING;
10450 INIT_LIST_HEAD(&pring->txq);
10451 INIT_LIST_HEAD(&pring->txcmplq);
10452 INIT_LIST_HEAD(&pring->iocb_continueq);
10453 spin_lock_init(&pring->ring_lock);
10455 pring = phba->sli4_hba.els_wq->pring;
10457 pring->ringno = LPFC_ELS_RING;
10458 INIT_LIST_HEAD(&pring->txq);
10459 INIT_LIST_HEAD(&pring->txcmplq);
10460 INIT_LIST_HEAD(&pring->iocb_continueq);
10461 spin_lock_init(&pring->ring_lock);
10463 if (phba->cfg_nvme_io_channel) {
10464 pring = phba->sli4_hba.nvmels_wq->pring;
10466 pring->ringno = LPFC_ELS_RING;
10467 INIT_LIST_HEAD(&pring->txq);
10468 INIT_LIST_HEAD(&pring->txcmplq);
10469 INIT_LIST_HEAD(&pring->iocb_continueq);
10470 spin_lock_init(&pring->ring_lock);
10473 if (phba->cfg_fof) {
10474 pring = phba->sli4_hba.oas_wq->pring;
10476 pring->ringno = LPFC_FCP_RING;
10477 INIT_LIST_HEAD(&pring->txq);
10478 INIT_LIST_HEAD(&pring->txcmplq);
10479 INIT_LIST_HEAD(&pring->iocb_continueq);
10480 spin_lock_init(&pring->ring_lock);
10483 spin_unlock_irq(&phba->hbalock);
10487 * lpfc_sli_queue_init - Queue initialization function
10488 * @phba: Pointer to HBA context object.
10490 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
10491 * ring. This function also initializes ring indices of each ring.
10492 * This function is called during the initialization of the SLI
10493 * interface of an HBA.
10494 * This function is called with no lock held and always returns
10498 lpfc_sli_queue_init(struct lpfc_hba *phba)
10500 struct lpfc_sli *psli;
10501 struct lpfc_sli_ring *pring;
10505 spin_lock_irq(&phba->hbalock);
10506 INIT_LIST_HEAD(&psli->mboxq);
10507 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10508 /* Initialize list headers for txq and txcmplq as double linked lists */
10509 for (i = 0; i < psli->num_rings; i++) {
10510 pring = &psli->sli3_ring[i];
10512 pring->sli.sli3.next_cmdidx = 0;
10513 pring->sli.sli3.local_getidx = 0;
10514 pring->sli.sli3.cmdidx = 0;
10515 INIT_LIST_HEAD(&pring->iocb_continueq);
10516 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
10517 INIT_LIST_HEAD(&pring->postbufq);
10519 INIT_LIST_HEAD(&pring->txq);
10520 INIT_LIST_HEAD(&pring->txcmplq);
10521 spin_lock_init(&pring->ring_lock);
10523 spin_unlock_irq(&phba->hbalock);
10527 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
10528 * @phba: Pointer to HBA context object.
10530 * This routine flushes the mailbox command subsystem. It will unconditionally
10531 * flush all the mailbox commands in the three possible stages in the mailbox
10532 * command sub-system: pending mailbox command queue; the outstanding mailbox
10533 * command; and completed mailbox command queue. It is caller's responsibility
10534 * to make sure that the driver is in the proper state to flush the mailbox
10535 * command sub-system. Namely, the posting of mailbox commands into the
10536 * pending mailbox command queue from the various clients must be stopped;
10537 * either the HBA is in a state that it will never works on the outstanding
10538 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
10539 * mailbox command has been completed.
10542 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
10544 LIST_HEAD(completions);
10545 struct lpfc_sli *psli = &phba->sli;
10547 unsigned long iflag;
10549 /* Disable softirqs, including timers from obtaining phba->hbalock */
10550 local_bh_disable();
10552 /* Flush all the mailbox commands in the mbox system */
10553 spin_lock_irqsave(&phba->hbalock, iflag);
10555 /* The pending mailbox command queue */
10556 list_splice_init(&phba->sli.mboxq, &completions);
10557 /* The outstanding active mailbox command */
10558 if (psli->mbox_active) {
10559 list_add_tail(&psli->mbox_active->list, &completions);
10560 psli->mbox_active = NULL;
10561 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10563 /* The completed mailbox command queue */
10564 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
10565 spin_unlock_irqrestore(&phba->hbalock, iflag);
10567 /* Enable softirqs again, done with phba->hbalock */
10570 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
10571 while (!list_empty(&completions)) {
10572 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
10573 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
10574 if (pmb->mbox_cmpl)
10575 pmb->mbox_cmpl(phba, pmb);
10580 * lpfc_sli_host_down - Vport cleanup function
10581 * @vport: Pointer to virtual port object.
10583 * lpfc_sli_host_down is called to clean up the resources
10584 * associated with a vport before destroying virtual
10585 * port data structures.
10586 * This function does following operations:
10587 * - Free discovery resources associated with this virtual
10589 * - Free iocbs associated with this virtual port in
10591 * - Send abort for all iocb commands associated with this
10592 * vport in txcmplq.
10594 * This function is called with no lock held and always returns 1.
10597 lpfc_sli_host_down(struct lpfc_vport *vport)
10599 LIST_HEAD(completions);
10600 struct lpfc_hba *phba = vport->phba;
10601 struct lpfc_sli *psli = &phba->sli;
10602 struct lpfc_queue *qp = NULL;
10603 struct lpfc_sli_ring *pring;
10604 struct lpfc_iocbq *iocb, *next_iocb;
10606 unsigned long flags = 0;
10607 uint16_t prev_pring_flag;
10609 lpfc_cleanup_discovery_resources(vport);
10611 spin_lock_irqsave(&phba->hbalock, flags);
10614 * Error everything on the txq since these iocbs
10615 * have not been given to the FW yet.
10616 * Also issue ABTS for everything on the txcmplq
10618 if (phba->sli_rev != LPFC_SLI_REV4) {
10619 for (i = 0; i < psli->num_rings; i++) {
10620 pring = &psli->sli3_ring[i];
10621 prev_pring_flag = pring->flag;
10622 /* Only slow rings */
10623 if (pring->ringno == LPFC_ELS_RING) {
10624 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10625 /* Set the lpfc data pending flag */
10626 set_bit(LPFC_DATA_READY, &phba->data_flags);
10628 list_for_each_entry_safe(iocb, next_iocb,
10629 &pring->txq, list) {
10630 if (iocb->vport != vport)
10632 list_move_tail(&iocb->list, &completions);
10634 list_for_each_entry_safe(iocb, next_iocb,
10635 &pring->txcmplq, list) {
10636 if (iocb->vport != vport)
10638 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10640 pring->flag = prev_pring_flag;
10643 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10647 if (pring == phba->sli4_hba.els_wq->pring) {
10648 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10649 /* Set the lpfc data pending flag */
10650 set_bit(LPFC_DATA_READY, &phba->data_flags);
10652 prev_pring_flag = pring->flag;
10653 spin_lock_irq(&pring->ring_lock);
10654 list_for_each_entry_safe(iocb, next_iocb,
10655 &pring->txq, list) {
10656 if (iocb->vport != vport)
10658 list_move_tail(&iocb->list, &completions);
10660 spin_unlock_irq(&pring->ring_lock);
10661 list_for_each_entry_safe(iocb, next_iocb,
10662 &pring->txcmplq, list) {
10663 if (iocb->vport != vport)
10665 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10667 pring->flag = prev_pring_flag;
10670 spin_unlock_irqrestore(&phba->hbalock, flags);
10672 /* Cancel all the IOCBs from the completions list */
10673 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10679 * lpfc_sli_hba_down - Resource cleanup function for the HBA
10680 * @phba: Pointer to HBA context object.
10682 * This function cleans up all iocb, buffers, mailbox commands
10683 * while shutting down the HBA. This function is called with no
10684 * lock held and always returns 1.
10685 * This function does the following to cleanup driver resources:
10686 * - Free discovery resources for each virtual port
10687 * - Cleanup any pending fabric iocbs
10688 * - Iterate through the iocb txq and free each entry
10690 * - Free up any buffer posted to the HBA
10691 * - Free mailbox commands in the mailbox queue.
10694 lpfc_sli_hba_down(struct lpfc_hba *phba)
10696 LIST_HEAD(completions);
10697 struct lpfc_sli *psli = &phba->sli;
10698 struct lpfc_queue *qp = NULL;
10699 struct lpfc_sli_ring *pring;
10700 struct lpfc_dmabuf *buf_ptr;
10701 unsigned long flags = 0;
10704 /* Shutdown the mailbox command sub-system */
10705 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
10707 lpfc_hba_down_prep(phba);
10709 /* Disable softirqs, including timers from obtaining phba->hbalock */
10710 local_bh_disable();
10712 lpfc_fabric_abort_hba(phba);
10714 spin_lock_irqsave(&phba->hbalock, flags);
10717 * Error everything on the txq since these iocbs
10718 * have not been given to the FW yet.
10720 if (phba->sli_rev != LPFC_SLI_REV4) {
10721 for (i = 0; i < psli->num_rings; i++) {
10722 pring = &psli->sli3_ring[i];
10723 /* Only slow rings */
10724 if (pring->ringno == LPFC_ELS_RING) {
10725 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10726 /* Set the lpfc data pending flag */
10727 set_bit(LPFC_DATA_READY, &phba->data_flags);
10729 list_splice_init(&pring->txq, &completions);
10732 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10736 spin_lock_irq(&pring->ring_lock);
10737 list_splice_init(&pring->txq, &completions);
10738 spin_unlock_irq(&pring->ring_lock);
10739 if (pring == phba->sli4_hba.els_wq->pring) {
10740 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10741 /* Set the lpfc data pending flag */
10742 set_bit(LPFC_DATA_READY, &phba->data_flags);
10746 spin_unlock_irqrestore(&phba->hbalock, flags);
10748 /* Cancel all the IOCBs from the completions list */
10749 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10752 spin_lock_irqsave(&phba->hbalock, flags);
10753 list_splice_init(&phba->elsbuf, &completions);
10754 phba->elsbuf_cnt = 0;
10755 phba->elsbuf_prev_cnt = 0;
10756 spin_unlock_irqrestore(&phba->hbalock, flags);
10758 while (!list_empty(&completions)) {
10759 list_remove_head(&completions, buf_ptr,
10760 struct lpfc_dmabuf, list);
10761 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10765 /* Enable softirqs again, done with phba->hbalock */
10768 /* Return any active mbox cmds */
10769 del_timer_sync(&psli->mbox_tmo);
10771 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
10772 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10773 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
10779 * lpfc_sli_pcimem_bcopy - SLI memory copy function
10780 * @srcp: Source memory pointer.
10781 * @destp: Destination memory pointer.
10782 * @cnt: Number of words required to be copied.
10784 * This function is used for copying data between driver memory
10785 * and the SLI memory. This function also changes the endianness
10786 * of each word if native endianness is different from SLI
10787 * endianness. This function can be called with or without
10791 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10793 uint32_t *src = srcp;
10794 uint32_t *dest = destp;
10798 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10800 ldata = le32_to_cpu(ldata);
10809 * lpfc_sli_bemem_bcopy - SLI memory copy function
10810 * @srcp: Source memory pointer.
10811 * @destp: Destination memory pointer.
10812 * @cnt: Number of words required to be copied.
10814 * This function is used for copying data between a data structure
10815 * with big endian representation to local endianness.
10816 * This function can be called with or without lock.
10819 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10821 uint32_t *src = srcp;
10822 uint32_t *dest = destp;
10826 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10828 ldata = be32_to_cpu(ldata);
10836 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
10837 * @phba: Pointer to HBA context object.
10838 * @pring: Pointer to driver SLI ring object.
10839 * @mp: Pointer to driver buffer object.
10841 * This function is called with no lock held.
10842 * It always return zero after adding the buffer to the postbufq
10846 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10847 struct lpfc_dmabuf *mp)
10849 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10851 spin_lock_irq(&phba->hbalock);
10852 list_add_tail(&mp->list, &pring->postbufq);
10853 pring->postbufq_cnt++;
10854 spin_unlock_irq(&phba->hbalock);
10859 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
10860 * @phba: Pointer to HBA context object.
10862 * When HBQ is enabled, buffers are searched based on tags. This function
10863 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10864 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10865 * does not conflict with tags of buffer posted for unsolicited events.
10866 * The function returns the allocated tag. The function is called with
10870 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10872 spin_lock_irq(&phba->hbalock);
10873 phba->buffer_tag_count++;
10875 * Always set the QUE_BUFTAG_BIT to distiguish between
10876 * a tag assigned by HBQ.
10878 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10879 spin_unlock_irq(&phba->hbalock);
10880 return phba->buffer_tag_count;
10884 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
10885 * @phba: Pointer to HBA context object.
10886 * @pring: Pointer to driver SLI ring object.
10887 * @tag: Buffer tag.
10889 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
10890 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
10891 * iocb is posted to the response ring with the tag of the buffer.
10892 * This function searches the pring->postbufq list using the tag
10893 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
10894 * iocb. If the buffer is found then lpfc_dmabuf object of the
10895 * buffer is returned to the caller else NULL is returned.
10896 * This function is called with no lock held.
10898 struct lpfc_dmabuf *
10899 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10902 struct lpfc_dmabuf *mp, *next_mp;
10903 struct list_head *slp = &pring->postbufq;
10905 /* Search postbufq, from the beginning, looking for a match on tag */
10906 spin_lock_irq(&phba->hbalock);
10907 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10908 if (mp->buffer_tag == tag) {
10909 list_del_init(&mp->list);
10910 pring->postbufq_cnt--;
10911 spin_unlock_irq(&phba->hbalock);
10916 spin_unlock_irq(&phba->hbalock);
10917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10918 "0402 Cannot find virtual addr for buffer tag on "
10919 "ring %d Data x%lx x%p x%p x%x\n",
10920 pring->ringno, (unsigned long) tag,
10921 slp->next, slp->prev, pring->postbufq_cnt);
10927 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
10928 * @phba: Pointer to HBA context object.
10929 * @pring: Pointer to driver SLI ring object.
10930 * @phys: DMA address of the buffer.
10932 * This function searches the buffer list using the dma_address
10933 * of unsolicited event to find the driver's lpfc_dmabuf object
10934 * corresponding to the dma_address. The function returns the
10935 * lpfc_dmabuf object if a buffer is found else it returns NULL.
10936 * This function is called by the ct and els unsolicited event
10937 * handlers to get the buffer associated with the unsolicited
10940 * This function is called with no lock held.
10942 struct lpfc_dmabuf *
10943 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10946 struct lpfc_dmabuf *mp, *next_mp;
10947 struct list_head *slp = &pring->postbufq;
10949 /* Search postbufq, from the beginning, looking for a match on phys */
10950 spin_lock_irq(&phba->hbalock);
10951 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10952 if (mp->phys == phys) {
10953 list_del_init(&mp->list);
10954 pring->postbufq_cnt--;
10955 spin_unlock_irq(&phba->hbalock);
10960 spin_unlock_irq(&phba->hbalock);
10961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10962 "0410 Cannot find virtual addr for mapped buf on "
10963 "ring %d Data x%llx x%p x%p x%x\n",
10964 pring->ringno, (unsigned long long)phys,
10965 slp->next, slp->prev, pring->postbufq_cnt);
10970 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
10971 * @phba: Pointer to HBA context object.
10972 * @cmdiocb: Pointer to driver command iocb object.
10973 * @rspiocb: Pointer to driver response iocb object.
10975 * This function is the completion handler for the abort iocbs for
10976 * ELS commands. This function is called from the ELS ring event
10977 * handler with no lock held. This function frees memory resources
10978 * associated with the abort iocb.
10981 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10982 struct lpfc_iocbq *rspiocb)
10984 IOCB_t *irsp = &rspiocb->iocb;
10985 uint16_t abort_iotag, abort_context;
10986 struct lpfc_iocbq *abort_iocb = NULL;
10988 if (irsp->ulpStatus) {
10991 * Assume that the port already completed and returned, or
10992 * will return the iocb. Just Log the message.
10994 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
10995 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
10997 spin_lock_irq(&phba->hbalock);
10998 if (phba->sli_rev < LPFC_SLI_REV4) {
10999 if (irsp->ulpCommand == CMD_ABORT_XRI_CX &&
11000 irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
11001 irsp->un.ulpWord[4] == IOERR_ABORT_REQUESTED) {
11002 spin_unlock_irq(&phba->hbalock);
11005 if (abort_iotag != 0 &&
11006 abort_iotag <= phba->sli.last_iotag)
11008 phba->sli.iocbq_lookup[abort_iotag];
11010 /* For sli4 the abort_tag is the XRI,
11011 * so the abort routine puts the iotag of the iocb
11012 * being aborted in the context field of the abort
11015 abort_iocb = phba->sli.iocbq_lookup[abort_context];
11017 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
11018 "0327 Cannot abort els iocb %p "
11019 "with tag %x context %x, abort status %x, "
11021 abort_iocb, abort_iotag, abort_context,
11022 irsp->ulpStatus, irsp->un.ulpWord[4]);
11024 spin_unlock_irq(&phba->hbalock);
11027 lpfc_sli_release_iocbq(phba, cmdiocb);
11032 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
11033 * @phba: Pointer to HBA context object.
11034 * @cmdiocb: Pointer to driver command iocb object.
11035 * @rspiocb: Pointer to driver response iocb object.
11037 * The function is called from SLI ring event handler with no
11038 * lock held. This function is the completion handler for ELS commands
11039 * which are aborted. The function frees memory resources used for
11040 * the aborted ELS commands.
11043 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11044 struct lpfc_iocbq *rspiocb)
11046 IOCB_t *irsp = &rspiocb->iocb;
11048 /* ELS cmd tag <ulpIoTag> completes */
11049 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11050 "0139 Ignoring ELS cmd tag x%x completion Data: "
11052 irsp->ulpIoTag, irsp->ulpStatus,
11053 irsp->un.ulpWord[4], irsp->ulpTimeout);
11054 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
11055 lpfc_ct_free_iocb(phba, cmdiocb);
11057 lpfc_els_free_iocb(phba, cmdiocb);
11062 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
11063 * @phba: Pointer to HBA context object.
11064 * @pring: Pointer to driver SLI ring object.
11065 * @cmdiocb: Pointer to driver command iocb object.
11067 * This function issues an abort iocb for the provided command iocb down to
11068 * the port. Other than the case the outstanding command iocb is an abort
11069 * request, this function issues abort out unconditionally. This function is
11070 * called with hbalock held. The function returns 0 when it fails due to
11071 * memory allocation failure or when the command iocb is an abort request.
11074 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11075 struct lpfc_iocbq *cmdiocb)
11077 struct lpfc_vport *vport = cmdiocb->vport;
11078 struct lpfc_iocbq *abtsiocbp;
11079 IOCB_t *icmd = NULL;
11080 IOCB_t *iabt = NULL;
11082 unsigned long iflags;
11083 struct lpfc_nodelist *ndlp;
11085 lockdep_assert_held(&phba->hbalock);
11088 * There are certain command types we don't want to abort. And we
11089 * don't want to abort commands that are already in the process of
11092 icmd = &cmdiocb->iocb;
11093 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11094 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11095 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11098 /* issue ABTS for this IOCB based on iotag */
11099 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11100 if (abtsiocbp == NULL)
11103 /* This signals the response to set the correct status
11104 * before calling the completion handler
11106 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11108 iabt = &abtsiocbp->iocb;
11109 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
11110 iabt->un.acxri.abortContextTag = icmd->ulpContext;
11111 if (phba->sli_rev == LPFC_SLI_REV4) {
11112 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
11113 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
11115 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
11116 if (pring->ringno == LPFC_ELS_RING) {
11117 ndlp = (struct lpfc_nodelist *)(cmdiocb->context1);
11118 iabt->un.acxri.abortContextTag = ndlp->nlp_rpi;
11122 iabt->ulpClass = icmd->ulpClass;
11124 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11125 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
11126 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
11127 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
11128 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
11129 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
11131 if (phba->link_state >= LPFC_LINK_UP)
11132 iabt->ulpCommand = CMD_ABORT_XRI_CN;
11134 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
11136 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
11137 abtsiocbp->vport = vport;
11139 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
11140 "0339 Abort xri x%x, original iotag x%x, "
11141 "abort cmd iotag x%x\n",
11142 iabt->un.acxri.abortIoTag,
11143 iabt->un.acxri.abortContextTag,
11146 if (phba->sli_rev == LPFC_SLI_REV4) {
11147 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
11148 if (unlikely(pring == NULL))
11150 /* Note: both hbalock and ring_lock need to be set here */
11151 spin_lock_irqsave(&pring->ring_lock, iflags);
11152 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11154 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11156 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11161 __lpfc_sli_release_iocbq(phba, abtsiocbp);
11164 * Caller to this routine should check for IOCB_ERROR
11165 * and handle it properly. This routine no longer removes
11166 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11172 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
11173 * @phba: Pointer to HBA context object.
11174 * @pring: Pointer to driver SLI ring object.
11175 * @cmdiocb: Pointer to driver command iocb object.
11177 * This function issues an abort iocb for the provided command iocb. In case
11178 * of unloading, the abort iocb will not be issued to commands on the ELS
11179 * ring. Instead, the callback function shall be changed to those commands
11180 * so that nothing happens when them finishes. This function is called with
11181 * hbalock held. The function returns 0 when the command iocb is an abort
11185 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11186 struct lpfc_iocbq *cmdiocb)
11188 struct lpfc_vport *vport = cmdiocb->vport;
11189 int retval = IOCB_ERROR;
11190 IOCB_t *icmd = NULL;
11192 lockdep_assert_held(&phba->hbalock);
11195 * There are certain command types we don't want to abort. And we
11196 * don't want to abort commands that are already in the process of
11199 icmd = &cmdiocb->iocb;
11200 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11201 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11202 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11206 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11207 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11209 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11210 goto abort_iotag_exit;
11214 * If we're unloading, don't abort iocb on the ELS ring, but change
11215 * the callback so that nothing happens when it finishes.
11217 if ((vport->load_flag & FC_UNLOADING) &&
11218 (pring->ringno == LPFC_ELS_RING)) {
11219 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11220 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11222 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11223 goto abort_iotag_exit;
11226 /* Now, we try to issue the abort to the cmdiocb out */
11227 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
11231 * Caller to this routine should check for IOCB_ERROR
11232 * and handle it properly. This routine no longer removes
11233 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11239 * lpfc_sli4_abort_nvme_io - Issue abort for a command iocb
11240 * @phba: Pointer to HBA context object.
11241 * @pring: Pointer to driver SLI ring object.
11242 * @cmdiocb: Pointer to driver command iocb object.
11244 * This function issues an abort iocb for the provided command iocb down to
11245 * the port. Other than the case the outstanding command iocb is an abort
11246 * request, this function issues abort out unconditionally. This function is
11247 * called with hbalock held. The function returns 0 when it fails due to
11248 * memory allocation failure or when the command iocb is an abort request.
11251 lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11252 struct lpfc_iocbq *cmdiocb)
11254 struct lpfc_vport *vport = cmdiocb->vport;
11255 struct lpfc_iocbq *abtsiocbp;
11256 union lpfc_wqe128 *abts_wqe;
11260 * There are certain command types we don't want to abort. And we
11261 * don't want to abort commands that are already in the process of
11264 if (cmdiocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
11265 cmdiocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN ||
11266 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11269 /* issue ABTS for this io based on iotag */
11270 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11271 if (abtsiocbp == NULL)
11274 /* This signals the response to set the correct status
11275 * before calling the completion handler
11277 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11279 /* Complete prepping the abort wqe and issue to the FW. */
11280 abts_wqe = &abtsiocbp->wqe;
11281 bf_set(abort_cmd_ia, &abts_wqe->abort_cmd, 0);
11282 bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG);
11284 /* Explicitly set reserved fields to zero.*/
11285 abts_wqe->abort_cmd.rsrvd4 = 0;
11286 abts_wqe->abort_cmd.rsrvd5 = 0;
11288 /* WQE Common - word 6. Context is XRI tag. Set 0. */
11289 bf_set(wqe_xri_tag, &abts_wqe->abort_cmd.wqe_com, 0);
11290 bf_set(wqe_ctxt_tag, &abts_wqe->abort_cmd.wqe_com, 0);
11293 bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0);
11294 bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
11295 bf_set(wqe_class, &abts_wqe->abort_cmd.wqe_com,
11296 cmdiocb->iocb.ulpClass);
11298 /* word 8 - tell the FW to abort the IO associated with this
11299 * outstanding exchange ID.
11301 abts_wqe->abort_cmd.wqe_com.abort_tag = cmdiocb->sli4_xritag;
11303 /* word 9 - this is the iotag for the abts_wqe completion. */
11304 bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com,
11308 bf_set(wqe_wqid, &abts_wqe->abort_cmd.wqe_com, cmdiocb->hba_wqidx);
11309 bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1);
11310 bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
11313 bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND);
11314 bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1);
11315 bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
11317 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11318 abtsiocbp->iocb_flag |= LPFC_IO_NVME;
11319 abtsiocbp->vport = vport;
11320 abtsiocbp->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl;
11321 retval = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abtsiocbp);
11323 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
11324 "6147 Failed abts issue_wqe with status x%x "
11326 retval, cmdiocb->sli4_xritag);
11327 lpfc_sli_release_iocbq(phba, abtsiocbp);
11331 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
11332 "6148 Drv Abort NVME Request Issued for "
11333 "ox_id x%x on reqtag x%x\n",
11334 cmdiocb->sli4_xritag,
11341 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
11342 * @phba: pointer to lpfc HBA data structure.
11344 * This routine will abort all pending and outstanding iocbs to an HBA.
11347 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
11349 struct lpfc_sli *psli = &phba->sli;
11350 struct lpfc_sli_ring *pring;
11351 struct lpfc_queue *qp = NULL;
11354 if (phba->sli_rev != LPFC_SLI_REV4) {
11355 for (i = 0; i < psli->num_rings; i++) {
11356 pring = &psli->sli3_ring[i];
11357 lpfc_sli_abort_iocb_ring(phba, pring);
11361 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11365 lpfc_sli_abort_iocb_ring(phba, pring);
11370 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
11371 * @iocbq: Pointer to driver iocb object.
11372 * @vport: Pointer to driver virtual port object.
11373 * @tgt_id: SCSI ID of the target.
11374 * @lun_id: LUN ID of the scsi device.
11375 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
11377 * This function acts as an iocb filter for functions which abort or count
11378 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
11379 * 0 if the filtering criteria is met for the given iocb and will return
11380 * 1 if the filtering criteria is not met.
11381 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
11382 * given iocb is for the SCSI device specified by vport, tgt_id and
11383 * lun_id parameter.
11384 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
11385 * given iocb is for the SCSI target specified by vport and tgt_id
11387 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
11388 * given iocb is for the SCSI host associated with the given vport.
11389 * This function is called with no locks held.
11392 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
11393 uint16_t tgt_id, uint64_t lun_id,
11394 lpfc_ctx_cmd ctx_cmd)
11396 struct lpfc_scsi_buf *lpfc_cmd;
11399 if (iocbq->vport != vport)
11402 if (!(iocbq->iocb_flag & LPFC_IO_FCP) ||
11403 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ))
11406 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11408 if (lpfc_cmd->pCmd == NULL)
11413 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11414 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
11415 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
11419 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11420 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
11423 case LPFC_CTX_HOST:
11427 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
11428 __func__, ctx_cmd);
11436 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
11437 * @vport: Pointer to virtual port.
11438 * @tgt_id: SCSI ID of the target.
11439 * @lun_id: LUN ID of the scsi device.
11440 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11442 * This function returns number of FCP commands pending for the vport.
11443 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
11444 * commands pending on the vport associated with SCSI device specified
11445 * by tgt_id and lun_id parameters.
11446 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
11447 * commands pending on the vport associated with SCSI target specified
11448 * by tgt_id parameter.
11449 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
11450 * commands pending on the vport.
11451 * This function returns the number of iocbs which satisfy the filter.
11452 * This function is called without any lock held.
11455 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
11456 lpfc_ctx_cmd ctx_cmd)
11458 struct lpfc_hba *phba = vport->phba;
11459 struct lpfc_iocbq *iocbq;
11462 spin_lock_irq(&phba->hbalock);
11463 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
11464 iocbq = phba->sli.iocbq_lookup[i];
11466 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
11470 spin_unlock_irq(&phba->hbalock);
11476 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
11477 * @phba: Pointer to HBA context object
11478 * @cmdiocb: Pointer to command iocb object.
11479 * @rspiocb: Pointer to response iocb object.
11481 * This function is called when an aborted FCP iocb completes. This
11482 * function is called by the ring event handler with no lock held.
11483 * This function frees the iocb.
11486 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11487 struct lpfc_iocbq *rspiocb)
11489 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11490 "3096 ABORT_XRI_CN completing on rpi x%x "
11491 "original iotag x%x, abort cmd iotag x%x "
11492 "status 0x%x, reason 0x%x\n",
11493 cmdiocb->iocb.un.acxri.abortContextTag,
11494 cmdiocb->iocb.un.acxri.abortIoTag,
11495 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
11496 rspiocb->iocb.un.ulpWord[4]);
11497 lpfc_sli_release_iocbq(phba, cmdiocb);
11502 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
11503 * @vport: Pointer to virtual port.
11504 * @pring: Pointer to driver SLI ring object.
11505 * @tgt_id: SCSI ID of the target.
11506 * @lun_id: LUN ID of the scsi device.
11507 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11509 * This function sends an abort command for every SCSI command
11510 * associated with the given virtual port pending on the ring
11511 * filtered by lpfc_sli_validate_fcp_iocb function.
11512 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
11513 * FCP iocbs associated with lun specified by tgt_id and lun_id
11515 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
11516 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11517 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
11518 * FCP iocbs associated with virtual port.
11519 * This function returns number of iocbs it failed to abort.
11520 * This function is called with no locks held.
11523 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11524 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
11526 struct lpfc_hba *phba = vport->phba;
11527 struct lpfc_iocbq *iocbq;
11528 struct lpfc_iocbq *abtsiocb;
11529 struct lpfc_sli_ring *pring_s4;
11530 IOCB_t *cmd = NULL;
11531 int errcnt = 0, ret_val = 0;
11534 /* all I/Os are in process of being flushed */
11535 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH)
11538 for (i = 1; i <= phba->sli.last_iotag; i++) {
11539 iocbq = phba->sli.iocbq_lookup[i];
11541 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11546 * If the iocbq is already being aborted, don't take a second
11547 * action, but do count it.
11549 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11552 /* issue ABTS for this IOCB based on iotag */
11553 abtsiocb = lpfc_sli_get_iocbq(phba);
11554 if (abtsiocb == NULL) {
11559 /* indicate the IO is being aborted by the driver. */
11560 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11562 cmd = &iocbq->iocb;
11563 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11564 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
11565 if (phba->sli_rev == LPFC_SLI_REV4)
11566 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
11568 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
11569 abtsiocb->iocb.ulpLe = 1;
11570 abtsiocb->iocb.ulpClass = cmd->ulpClass;
11571 abtsiocb->vport = vport;
11573 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11574 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
11575 if (iocbq->iocb_flag & LPFC_IO_FCP)
11576 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
11577 if (iocbq->iocb_flag & LPFC_IO_FOF)
11578 abtsiocb->iocb_flag |= LPFC_IO_FOF;
11580 if (lpfc_is_link_up(phba))
11581 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11583 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11585 /* Setup callback routine and issue the command. */
11586 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11587 if (phba->sli_rev == LPFC_SLI_REV4) {
11588 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11591 ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11594 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
11596 if (ret_val == IOCB_ERROR) {
11597 lpfc_sli_release_iocbq(phba, abtsiocb);
11607 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
11608 * @vport: Pointer to virtual port.
11609 * @pring: Pointer to driver SLI ring object.
11610 * @tgt_id: SCSI ID of the target.
11611 * @lun_id: LUN ID of the scsi device.
11612 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11614 * This function sends an abort command for every SCSI command
11615 * associated with the given virtual port pending on the ring
11616 * filtered by lpfc_sli_validate_fcp_iocb function.
11617 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
11618 * FCP iocbs associated with lun specified by tgt_id and lun_id
11620 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
11621 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11622 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
11623 * FCP iocbs associated with virtual port.
11624 * This function returns number of iocbs it aborted .
11625 * This function is called with no locks held right after a taskmgmt
11629 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11630 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
11632 struct lpfc_hba *phba = vport->phba;
11633 struct lpfc_scsi_buf *lpfc_cmd;
11634 struct lpfc_iocbq *abtsiocbq;
11635 struct lpfc_nodelist *ndlp;
11636 struct lpfc_iocbq *iocbq;
11638 int sum, i, ret_val;
11639 unsigned long iflags;
11640 struct lpfc_sli_ring *pring_s4;
11642 spin_lock_irqsave(&phba->hbalock, iflags);
11644 /* all I/Os are in process of being flushed */
11645 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
11646 spin_unlock_irqrestore(&phba->hbalock, iflags);
11651 for (i = 1; i <= phba->sli.last_iotag; i++) {
11652 iocbq = phba->sli.iocbq_lookup[i];
11654 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11659 * If the iocbq is already being aborted, don't take a second
11660 * action, but do count it.
11662 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11665 /* issue ABTS for this IOCB based on iotag */
11666 abtsiocbq = __lpfc_sli_get_iocbq(phba);
11667 if (abtsiocbq == NULL)
11670 icmd = &iocbq->iocb;
11671 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11672 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11673 if (phba->sli_rev == LPFC_SLI_REV4)
11674 abtsiocbq->iocb.un.acxri.abortIoTag =
11675 iocbq->sli4_xritag;
11677 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11678 abtsiocbq->iocb.ulpLe = 1;
11679 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11680 abtsiocbq->vport = vport;
11682 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11683 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
11684 if (iocbq->iocb_flag & LPFC_IO_FCP)
11685 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
11686 if (iocbq->iocb_flag & LPFC_IO_FOF)
11687 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
11689 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11690 ndlp = lpfc_cmd->rdata->pnode;
11692 if (lpfc_is_link_up(phba) &&
11693 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
11694 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11696 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11698 /* Setup callback routine and issue the command. */
11699 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11702 * Indicate the IO is being aborted by the driver and set
11703 * the caller's flag into the aborted IO.
11705 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11707 if (phba->sli_rev == LPFC_SLI_REV4) {
11708 pring_s4 = lpfc_sli4_calc_ring(phba, abtsiocbq);
11711 /* Note: both hbalock and ring_lock must be set here */
11712 spin_lock(&pring_s4->ring_lock);
11713 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11715 spin_unlock(&pring_s4->ring_lock);
11717 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11722 if (ret_val == IOCB_ERROR)
11723 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11727 spin_unlock_irqrestore(&phba->hbalock, iflags);
11732 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
11733 * @phba: Pointer to HBA context object.
11734 * @cmdiocbq: Pointer to command iocb.
11735 * @rspiocbq: Pointer to response iocb.
11737 * This function is the completion handler for iocbs issued using
11738 * lpfc_sli_issue_iocb_wait function. This function is called by the
11739 * ring event handler function without any lock held. This function
11740 * can be called from both worker thread context and interrupt
11741 * context. This function also can be called from other thread which
11742 * cleans up the SLI layer objects.
11743 * This function copy the contents of the response iocb to the
11744 * response iocb memory object provided by the caller of
11745 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11746 * sleeps for the iocb completion.
11749 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11750 struct lpfc_iocbq *cmdiocbq,
11751 struct lpfc_iocbq *rspiocbq)
11753 wait_queue_head_t *pdone_q;
11754 unsigned long iflags;
11755 struct lpfc_scsi_buf *lpfc_cmd;
11757 spin_lock_irqsave(&phba->hbalock, iflags);
11758 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11761 * A time out has occurred for the iocb. If a time out
11762 * completion handler has been supplied, call it. Otherwise,
11763 * just free the iocbq.
11766 spin_unlock_irqrestore(&phba->hbalock, iflags);
11767 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11768 cmdiocbq->wait_iocb_cmpl = NULL;
11769 if (cmdiocbq->iocb_cmpl)
11770 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11772 lpfc_sli_release_iocbq(phba, cmdiocbq);
11776 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11777 if (cmdiocbq->context2 && rspiocbq)
11778 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11779 &rspiocbq->iocb, sizeof(IOCB_t));
11781 /* Set the exchange busy flag for task management commands */
11782 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11783 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11784 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
11786 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
11789 pdone_q = cmdiocbq->context_un.wait_queue;
11792 spin_unlock_irqrestore(&phba->hbalock, iflags);
11797 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11798 * @phba: Pointer to HBA context object..
11799 * @piocbq: Pointer to command iocb.
11800 * @flag: Flag to test.
11802 * This routine grabs the hbalock and then test the iocb_flag to
11803 * see if the passed in flag is set.
11805 * 1 if flag is set.
11806 * 0 if flag is not set.
11809 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11810 struct lpfc_iocbq *piocbq, uint32_t flag)
11812 unsigned long iflags;
11815 spin_lock_irqsave(&phba->hbalock, iflags);
11816 ret = piocbq->iocb_flag & flag;
11817 spin_unlock_irqrestore(&phba->hbalock, iflags);
11823 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
11824 * @phba: Pointer to HBA context object..
11825 * @pring: Pointer to sli ring.
11826 * @piocb: Pointer to command iocb.
11827 * @prspiocbq: Pointer to response iocb.
11828 * @timeout: Timeout in number of seconds.
11830 * This function issues the iocb to firmware and waits for the
11831 * iocb to complete. The iocb_cmpl field of the shall be used
11832 * to handle iocbs which time out. If the field is NULL, the
11833 * function shall free the iocbq structure. If more clean up is
11834 * needed, the caller is expected to provide a completion function
11835 * that will provide the needed clean up. If the iocb command is
11836 * not completed within timeout seconds, the function will either
11837 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11838 * completion function set in the iocb_cmpl field and then return
11839 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11840 * resources if this function returns IOCB_TIMEDOUT.
11841 * The function waits for the iocb completion using an
11842 * non-interruptible wait.
11843 * This function will sleep while waiting for iocb completion.
11844 * So, this function should not be called from any context which
11845 * does not allow sleeping. Due to the same reason, this function
11846 * cannot be called with interrupt disabled.
11847 * This function assumes that the iocb completions occur while
11848 * this function sleep. So, this function cannot be called from
11849 * the thread which process iocb completion for this ring.
11850 * This function clears the iocb_flag of the iocb object before
11851 * issuing the iocb and the iocb completion handler sets this
11852 * flag and wakes this thread when the iocb completes.
11853 * The contents of the response iocb will be copied to prspiocbq
11854 * by the completion handler when the command completes.
11855 * This function returns IOCB_SUCCESS when success.
11856 * This function is called with no lock held.
11859 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
11860 uint32_t ring_number,
11861 struct lpfc_iocbq *piocb,
11862 struct lpfc_iocbq *prspiocbq,
11865 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11866 long timeleft, timeout_req = 0;
11867 int retval = IOCB_SUCCESS;
11869 struct lpfc_iocbq *iocb;
11871 int txcmplq_cnt = 0;
11872 struct lpfc_sli_ring *pring;
11873 unsigned long iflags;
11874 bool iocb_completed = true;
11876 if (phba->sli_rev >= LPFC_SLI_REV4)
11877 pring = lpfc_sli4_calc_ring(phba, piocb);
11879 pring = &phba->sli.sli3_ring[ring_number];
11881 * If the caller has provided a response iocbq buffer, then context2
11882 * is NULL or its an error.
11885 if (piocb->context2)
11887 piocb->context2 = prspiocbq;
11890 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
11891 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11892 piocb->context_un.wait_queue = &done_q;
11893 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
11895 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11896 if (lpfc_readl(phba->HCregaddr, &creg_val))
11898 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11899 writel(creg_val, phba->HCregaddr);
11900 readl(phba->HCregaddr); /* flush */
11903 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11904 SLI_IOCB_RET_IOCB);
11905 if (retval == IOCB_SUCCESS) {
11906 timeout_req = msecs_to_jiffies(timeout * 1000);
11907 timeleft = wait_event_timeout(done_q,
11908 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
11910 spin_lock_irqsave(&phba->hbalock, iflags);
11911 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
11914 * IOCB timed out. Inform the wake iocb wait
11915 * completion function and set local status
11918 iocb_completed = false;
11919 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11921 spin_unlock_irqrestore(&phba->hbalock, iflags);
11922 if (iocb_completed) {
11923 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11924 "0331 IOCB wake signaled\n");
11925 /* Note: we are not indicating if the IOCB has a success
11926 * status or not - that's for the caller to check.
11927 * IOCB_SUCCESS means just that the command was sent and
11928 * completed. Not that it completed successfully.
11930 } else if (timeleft == 0) {
11931 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11932 "0338 IOCB wait timeout error - no "
11933 "wake response Data x%x\n", timeout);
11934 retval = IOCB_TIMEDOUT;
11936 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11937 "0330 IOCB wake NOT set, "
11939 timeout, (timeleft / jiffies));
11940 retval = IOCB_TIMEDOUT;
11942 } else if (retval == IOCB_BUSY) {
11943 if (phba->cfg_log_verbose & LOG_SLI) {
11944 list_for_each_entry(iocb, &pring->txq, list) {
11947 list_for_each_entry(iocb, &pring->txcmplq, list) {
11950 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11951 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11952 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
11956 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11957 "0332 IOCB wait issue failed, Data x%x\n",
11959 retval = IOCB_ERROR;
11962 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11963 if (lpfc_readl(phba->HCregaddr, &creg_val))
11965 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
11966 writel(creg_val, phba->HCregaddr);
11967 readl(phba->HCregaddr); /* flush */
11971 piocb->context2 = NULL;
11973 piocb->context_un.wait_queue = NULL;
11974 piocb->iocb_cmpl = NULL;
11979 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
11980 * @phba: Pointer to HBA context object.
11981 * @pmboxq: Pointer to driver mailbox object.
11982 * @timeout: Timeout in number of seconds.
11984 * This function issues the mailbox to firmware and waits for the
11985 * mailbox command to complete. If the mailbox command is not
11986 * completed within timeout seconds, it returns MBX_TIMEOUT.
11987 * The function waits for the mailbox completion using an
11988 * interruptible wait. If the thread is woken up due to a
11989 * signal, MBX_TIMEOUT error is returned to the caller. Caller
11990 * should not free the mailbox resources, if this function returns
11992 * This function will sleep while waiting for mailbox completion.
11993 * So, this function should not be called from any context which
11994 * does not allow sleeping. Due to the same reason, this function
11995 * cannot be called with interrupt disabled.
11996 * This function assumes that the mailbox completion occurs while
11997 * this function sleep. So, this function cannot be called from
11998 * the worker thread which processes mailbox completion.
11999 * This function is called in the context of HBA management
12001 * This function returns MBX_SUCCESS when successful.
12002 * This function is called with no lock held.
12005 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
12008 struct completion mbox_done;
12010 unsigned long flag;
12012 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
12013 /* setup wake call as IOCB callback */
12014 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
12016 /* setup context3 field to pass wait_queue pointer to wake function */
12017 init_completion(&mbox_done);
12018 pmboxq->context3 = &mbox_done;
12019 /* now issue the command */
12020 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
12021 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
12022 wait_for_completion_timeout(&mbox_done,
12023 msecs_to_jiffies(timeout * 1000));
12025 spin_lock_irqsave(&phba->hbalock, flag);
12026 pmboxq->context3 = NULL;
12028 * if LPFC_MBX_WAKE flag is set the mailbox is completed
12029 * else do not free the resources.
12031 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
12032 retval = MBX_SUCCESS;
12034 retval = MBX_TIMEOUT;
12035 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12037 spin_unlock_irqrestore(&phba->hbalock, flag);
12043 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
12044 * @phba: Pointer to HBA context.
12046 * This function is called to shutdown the driver's mailbox sub-system.
12047 * It first marks the mailbox sub-system is in a block state to prevent
12048 * the asynchronous mailbox command from issued off the pending mailbox
12049 * command queue. If the mailbox command sub-system shutdown is due to
12050 * HBA error conditions such as EEH or ERATT, this routine shall invoke
12051 * the mailbox sub-system flush routine to forcefully bring down the
12052 * mailbox sub-system. Otherwise, if it is due to normal condition (such
12053 * as with offline or HBA function reset), this routine will wait for the
12054 * outstanding mailbox command to complete before invoking the mailbox
12055 * sub-system flush routine to gracefully bring down mailbox sub-system.
12058 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
12060 struct lpfc_sli *psli = &phba->sli;
12061 unsigned long timeout;
12063 if (mbx_action == LPFC_MBX_NO_WAIT) {
12064 /* delay 100ms for port state */
12066 lpfc_sli_mbox_sys_flush(phba);
12069 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
12071 /* Disable softirqs, including timers from obtaining phba->hbalock */
12072 local_bh_disable();
12074 spin_lock_irq(&phba->hbalock);
12075 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
12077 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
12078 /* Determine how long we might wait for the active mailbox
12079 * command to be gracefully completed by firmware.
12081 if (phba->sli.mbox_active)
12082 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
12083 phba->sli.mbox_active) *
12085 spin_unlock_irq(&phba->hbalock);
12087 /* Enable softirqs again, done with phba->hbalock */
12090 while (phba->sli.mbox_active) {
12091 /* Check active mailbox complete status every 2ms */
12093 if (time_after(jiffies, timeout))
12094 /* Timeout, let the mailbox flush routine to
12095 * forcefully release active mailbox command
12100 spin_unlock_irq(&phba->hbalock);
12102 /* Enable softirqs again, done with phba->hbalock */
12106 lpfc_sli_mbox_sys_flush(phba);
12110 * lpfc_sli_eratt_read - read sli-3 error attention events
12111 * @phba: Pointer to HBA context.
12113 * This function is called to read the SLI3 device error attention registers
12114 * for possible error attention events. The caller must hold the hostlock
12115 * with spin_lock_irq().
12117 * This function returns 1 when there is Error Attention in the Host Attention
12118 * Register and returns 0 otherwise.
12121 lpfc_sli_eratt_read(struct lpfc_hba *phba)
12125 /* Read chip Host Attention (HA) register */
12126 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12129 if (ha_copy & HA_ERATT) {
12130 /* Read host status register to retrieve error event */
12131 if (lpfc_sli_read_hs(phba))
12134 /* Check if there is a deferred error condition is active */
12135 if ((HS_FFER1 & phba->work_hs) &&
12136 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12137 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
12138 phba->hba_flag |= DEFER_ERATT;
12139 /* Clear all interrupt enable conditions */
12140 writel(0, phba->HCregaddr);
12141 readl(phba->HCregaddr);
12144 /* Set the driver HA work bitmap */
12145 phba->work_ha |= HA_ERATT;
12146 /* Indicate polling handles this ERATT */
12147 phba->hba_flag |= HBA_ERATT_HANDLED;
12153 /* Set the driver HS work bitmap */
12154 phba->work_hs |= UNPLUG_ERR;
12155 /* Set the driver HA work bitmap */
12156 phba->work_ha |= HA_ERATT;
12157 /* Indicate polling handles this ERATT */
12158 phba->hba_flag |= HBA_ERATT_HANDLED;
12163 * lpfc_sli4_eratt_read - read sli-4 error attention events
12164 * @phba: Pointer to HBA context.
12166 * This function is called to read the SLI4 device error attention registers
12167 * for possible error attention events. The caller must hold the hostlock
12168 * with spin_lock_irq().
12170 * This function returns 1 when there is Error Attention in the Host Attention
12171 * Register and returns 0 otherwise.
12174 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
12176 uint32_t uerr_sta_hi, uerr_sta_lo;
12177 uint32_t if_type, portsmphr;
12178 struct lpfc_register portstat_reg;
12181 * For now, use the SLI4 device internal unrecoverable error
12182 * registers for error attention. This can be changed later.
12184 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12186 case LPFC_SLI_INTF_IF_TYPE_0:
12187 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
12189 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
12191 phba->work_hs |= UNPLUG_ERR;
12192 phba->work_ha |= HA_ERATT;
12193 phba->hba_flag |= HBA_ERATT_HANDLED;
12196 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
12197 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
12198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12199 "1423 HBA Unrecoverable error: "
12200 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
12201 "ue_mask_lo_reg=0x%x, "
12202 "ue_mask_hi_reg=0x%x\n",
12203 uerr_sta_lo, uerr_sta_hi,
12204 phba->sli4_hba.ue_mask_lo,
12205 phba->sli4_hba.ue_mask_hi);
12206 phba->work_status[0] = uerr_sta_lo;
12207 phba->work_status[1] = uerr_sta_hi;
12208 phba->work_ha |= HA_ERATT;
12209 phba->hba_flag |= HBA_ERATT_HANDLED;
12213 case LPFC_SLI_INTF_IF_TYPE_2:
12214 case LPFC_SLI_INTF_IF_TYPE_6:
12215 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
12216 &portstat_reg.word0) ||
12217 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
12219 phba->work_hs |= UNPLUG_ERR;
12220 phba->work_ha |= HA_ERATT;
12221 phba->hba_flag |= HBA_ERATT_HANDLED;
12224 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
12225 phba->work_status[0] =
12226 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
12227 phba->work_status[1] =
12228 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
12229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12230 "2885 Port Status Event: "
12231 "port status reg 0x%x, "
12232 "port smphr reg 0x%x, "
12233 "error 1=0x%x, error 2=0x%x\n",
12234 portstat_reg.word0,
12236 phba->work_status[0],
12237 phba->work_status[1]);
12238 phba->work_ha |= HA_ERATT;
12239 phba->hba_flag |= HBA_ERATT_HANDLED;
12243 case LPFC_SLI_INTF_IF_TYPE_1:
12245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12246 "2886 HBA Error Attention on unsupported "
12247 "if type %d.", if_type);
12255 * lpfc_sli_check_eratt - check error attention events
12256 * @phba: Pointer to HBA context.
12258 * This function is called from timer soft interrupt context to check HBA's
12259 * error attention register bit for error attention events.
12261 * This function returns 1 when there is Error Attention in the Host Attention
12262 * Register and returns 0 otherwise.
12265 lpfc_sli_check_eratt(struct lpfc_hba *phba)
12269 /* If somebody is waiting to handle an eratt, don't process it
12270 * here. The brdkill function will do this.
12272 if (phba->link_flag & LS_IGNORE_ERATT)
12275 /* Check if interrupt handler handles this ERATT */
12276 spin_lock_irq(&phba->hbalock);
12277 if (phba->hba_flag & HBA_ERATT_HANDLED) {
12278 /* Interrupt handler has handled ERATT */
12279 spin_unlock_irq(&phba->hbalock);
12284 * If there is deferred error attention, do not check for error
12287 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12288 spin_unlock_irq(&phba->hbalock);
12292 /* If PCI channel is offline, don't process it */
12293 if (unlikely(pci_channel_offline(phba->pcidev))) {
12294 spin_unlock_irq(&phba->hbalock);
12298 switch (phba->sli_rev) {
12299 case LPFC_SLI_REV2:
12300 case LPFC_SLI_REV3:
12301 /* Read chip Host Attention (HA) register */
12302 ha_copy = lpfc_sli_eratt_read(phba);
12304 case LPFC_SLI_REV4:
12305 /* Read device Uncoverable Error (UERR) registers */
12306 ha_copy = lpfc_sli4_eratt_read(phba);
12309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12310 "0299 Invalid SLI revision (%d)\n",
12315 spin_unlock_irq(&phba->hbalock);
12321 * lpfc_intr_state_check - Check device state for interrupt handling
12322 * @phba: Pointer to HBA context.
12324 * This inline routine checks whether a device or its PCI slot is in a state
12325 * that the interrupt should be handled.
12327 * This function returns 0 if the device or the PCI slot is in a state that
12328 * interrupt should be handled, otherwise -EIO.
12331 lpfc_intr_state_check(struct lpfc_hba *phba)
12333 /* If the pci channel is offline, ignore all the interrupts */
12334 if (unlikely(pci_channel_offline(phba->pcidev)))
12337 /* Update device level interrupt statistics */
12338 phba->sli.slistat.sli_intr++;
12340 /* Ignore all interrupts during initialization. */
12341 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
12348 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
12349 * @irq: Interrupt number.
12350 * @dev_id: The device context pointer.
12352 * This function is directly called from the PCI layer as an interrupt
12353 * service routine when device with SLI-3 interface spec is enabled with
12354 * MSI-X multi-message interrupt mode and there are slow-path events in
12355 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
12356 * interrupt mode, this function is called as part of the device-level
12357 * interrupt handler. When the PCI slot is in error recovery or the HBA
12358 * is undergoing initialization, the interrupt handler will not process
12359 * the interrupt. The link attention and ELS ring attention events are
12360 * handled by the worker thread. The interrupt handler signals the worker
12361 * thread and returns for these events. This function is called without
12362 * any lock held. It gets the hbalock to access and update SLI data
12365 * This function returns IRQ_HANDLED when interrupt is handled else it
12366 * returns IRQ_NONE.
12369 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
12371 struct lpfc_hba *phba;
12372 uint32_t ha_copy, hc_copy;
12373 uint32_t work_ha_copy;
12374 unsigned long status;
12375 unsigned long iflag;
12378 MAILBOX_t *mbox, *pmbox;
12379 struct lpfc_vport *vport;
12380 struct lpfc_nodelist *ndlp;
12381 struct lpfc_dmabuf *mp;
12386 * Get the driver's phba structure from the dev_id and
12387 * assume the HBA is not interrupting.
12389 phba = (struct lpfc_hba *)dev_id;
12391 if (unlikely(!phba))
12395 * Stuff needs to be attented to when this function is invoked as an
12396 * individual interrupt handler in MSI-X multi-message interrupt mode
12398 if (phba->intr_type == MSIX) {
12399 /* Check device state for handling interrupt */
12400 if (lpfc_intr_state_check(phba))
12402 /* Need to read HA REG for slow-path events */
12403 spin_lock_irqsave(&phba->hbalock, iflag);
12404 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12406 /* If somebody is waiting to handle an eratt don't process it
12407 * here. The brdkill function will do this.
12409 if (phba->link_flag & LS_IGNORE_ERATT)
12410 ha_copy &= ~HA_ERATT;
12411 /* Check the need for handling ERATT in interrupt handler */
12412 if (ha_copy & HA_ERATT) {
12413 if (phba->hba_flag & HBA_ERATT_HANDLED)
12414 /* ERATT polling has handled ERATT */
12415 ha_copy &= ~HA_ERATT;
12417 /* Indicate interrupt handler handles ERATT */
12418 phba->hba_flag |= HBA_ERATT_HANDLED;
12422 * If there is deferred error attention, do not check for any
12425 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12426 spin_unlock_irqrestore(&phba->hbalock, iflag);
12430 /* Clear up only attention source related to slow-path */
12431 if (lpfc_readl(phba->HCregaddr, &hc_copy))
12434 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
12435 HC_LAINT_ENA | HC_ERINT_ENA),
12437 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
12439 writel(hc_copy, phba->HCregaddr);
12440 readl(phba->HAregaddr); /* flush */
12441 spin_unlock_irqrestore(&phba->hbalock, iflag);
12443 ha_copy = phba->ha_copy;
12445 work_ha_copy = ha_copy & phba->work_ha_mask;
12447 if (work_ha_copy) {
12448 if (work_ha_copy & HA_LATT) {
12449 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
12451 * Turn off Link Attention interrupts
12452 * until CLEAR_LA done
12454 spin_lock_irqsave(&phba->hbalock, iflag);
12455 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
12456 if (lpfc_readl(phba->HCregaddr, &control))
12458 control &= ~HC_LAINT_ENA;
12459 writel(control, phba->HCregaddr);
12460 readl(phba->HCregaddr); /* flush */
12461 spin_unlock_irqrestore(&phba->hbalock, iflag);
12464 work_ha_copy &= ~HA_LATT;
12467 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
12469 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
12470 * the only slow ring.
12472 status = (work_ha_copy &
12473 (HA_RXMASK << (4*LPFC_ELS_RING)));
12474 status >>= (4*LPFC_ELS_RING);
12475 if (status & HA_RXMASK) {
12476 spin_lock_irqsave(&phba->hbalock, iflag);
12477 if (lpfc_readl(phba->HCregaddr, &control))
12480 lpfc_debugfs_slow_ring_trc(phba,
12481 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
12483 (uint32_t)phba->sli.slistat.sli_intr);
12485 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
12486 lpfc_debugfs_slow_ring_trc(phba,
12487 "ISR Disable ring:"
12488 "pwork:x%x hawork:x%x wait:x%x",
12489 phba->work_ha, work_ha_copy,
12490 (uint32_t)((unsigned long)
12491 &phba->work_waitq));
12494 ~(HC_R0INT_ENA << LPFC_ELS_RING);
12495 writel(control, phba->HCregaddr);
12496 readl(phba->HCregaddr); /* flush */
12499 lpfc_debugfs_slow_ring_trc(phba,
12500 "ISR slow ring: pwork:"
12501 "x%x hawork:x%x wait:x%x",
12502 phba->work_ha, work_ha_copy,
12503 (uint32_t)((unsigned long)
12504 &phba->work_waitq));
12506 spin_unlock_irqrestore(&phba->hbalock, iflag);
12509 spin_lock_irqsave(&phba->hbalock, iflag);
12510 if (work_ha_copy & HA_ERATT) {
12511 if (lpfc_sli_read_hs(phba))
12514 * Check if there is a deferred error condition
12517 if ((HS_FFER1 & phba->work_hs) &&
12518 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12519 HS_FFER6 | HS_FFER7 | HS_FFER8) &
12521 phba->hba_flag |= DEFER_ERATT;
12522 /* Clear all interrupt enable conditions */
12523 writel(0, phba->HCregaddr);
12524 readl(phba->HCregaddr);
12528 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
12529 pmb = phba->sli.mbox_active;
12530 pmbox = &pmb->u.mb;
12532 vport = pmb->vport;
12534 /* First check out the status word */
12535 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
12536 if (pmbox->mbxOwner != OWN_HOST) {
12537 spin_unlock_irqrestore(&phba->hbalock, iflag);
12539 * Stray Mailbox Interrupt, mbxCommand <cmd>
12540 * mbxStatus <status>
12542 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12544 "(%d):0304 Stray Mailbox "
12545 "Interrupt mbxCommand x%x "
12547 (vport ? vport->vpi : 0),
12550 /* clear mailbox attention bit */
12551 work_ha_copy &= ~HA_MBATT;
12553 phba->sli.mbox_active = NULL;
12554 spin_unlock_irqrestore(&phba->hbalock, iflag);
12555 phba->last_completion_time = jiffies;
12556 del_timer(&phba->sli.mbox_tmo);
12557 if (pmb->mbox_cmpl) {
12558 lpfc_sli_pcimem_bcopy(mbox, pmbox,
12560 if (pmb->out_ext_byte_len &&
12562 lpfc_sli_pcimem_bcopy(
12565 pmb->out_ext_byte_len);
12567 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12568 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12570 lpfc_debugfs_disc_trc(vport,
12571 LPFC_DISC_TRC_MBOX_VPORT,
12572 "MBOX dflt rpi: : "
12573 "status:x%x rpi:x%x",
12574 (uint32_t)pmbox->mbxStatus,
12575 pmbox->un.varWords[0], 0);
12577 if (!pmbox->mbxStatus) {
12578 mp = (struct lpfc_dmabuf *)
12580 ndlp = (struct lpfc_nodelist *)
12583 /* Reg_LOGIN of dflt RPI was
12584 * successful. new lets get
12585 * rid of the RPI using the
12586 * same mbox buffer.
12588 lpfc_unreg_login(phba,
12590 pmbox->un.varWords[0],
12593 lpfc_mbx_cmpl_dflt_rpi;
12594 pmb->context1 = mp;
12595 pmb->context2 = ndlp;
12596 pmb->vport = vport;
12597 rc = lpfc_sli_issue_mbox(phba,
12600 if (rc != MBX_BUSY)
12601 lpfc_printf_log(phba,
12603 LOG_MBOX | LOG_SLI,
12604 "0350 rc should have"
12605 "been MBX_BUSY\n");
12606 if (rc != MBX_NOT_FINISHED)
12607 goto send_current_mbox;
12611 &phba->pport->work_port_lock,
12613 phba->pport->work_port_events &=
12615 spin_unlock_irqrestore(
12616 &phba->pport->work_port_lock,
12618 lpfc_mbox_cmpl_put(phba, pmb);
12621 spin_unlock_irqrestore(&phba->hbalock, iflag);
12623 if ((work_ha_copy & HA_MBATT) &&
12624 (phba->sli.mbox_active == NULL)) {
12626 /* Process next mailbox command if there is one */
12628 rc = lpfc_sli_issue_mbox(phba, NULL,
12630 } while (rc == MBX_NOT_FINISHED);
12631 if (rc != MBX_SUCCESS)
12632 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12633 LOG_SLI, "0349 rc should be "
12637 spin_lock_irqsave(&phba->hbalock, iflag);
12638 phba->work_ha |= work_ha_copy;
12639 spin_unlock_irqrestore(&phba->hbalock, iflag);
12640 lpfc_worker_wake_up(phba);
12642 return IRQ_HANDLED;
12644 spin_unlock_irqrestore(&phba->hbalock, iflag);
12645 return IRQ_HANDLED;
12647 } /* lpfc_sli_sp_intr_handler */
12650 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
12651 * @irq: Interrupt number.
12652 * @dev_id: The device context pointer.
12654 * This function is directly called from the PCI layer as an interrupt
12655 * service routine when device with SLI-3 interface spec is enabled with
12656 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12657 * ring event in the HBA. However, when the device is enabled with either
12658 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12659 * device-level interrupt handler. When the PCI slot is in error recovery
12660 * or the HBA is undergoing initialization, the interrupt handler will not
12661 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12662 * the intrrupt context. This function is called without any lock held.
12663 * It gets the hbalock to access and update SLI data structures.
12665 * This function returns IRQ_HANDLED when interrupt is handled else it
12666 * returns IRQ_NONE.
12669 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
12671 struct lpfc_hba *phba;
12673 unsigned long status;
12674 unsigned long iflag;
12675 struct lpfc_sli_ring *pring;
12677 /* Get the driver's phba structure from the dev_id and
12678 * assume the HBA is not interrupting.
12680 phba = (struct lpfc_hba *) dev_id;
12682 if (unlikely(!phba))
12686 * Stuff needs to be attented to when this function is invoked as an
12687 * individual interrupt handler in MSI-X multi-message interrupt mode
12689 if (phba->intr_type == MSIX) {
12690 /* Check device state for handling interrupt */
12691 if (lpfc_intr_state_check(phba))
12693 /* Need to read HA REG for FCP ring and other ring events */
12694 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12695 return IRQ_HANDLED;
12696 /* Clear up only attention source related to fast-path */
12697 spin_lock_irqsave(&phba->hbalock, iflag);
12699 * If there is deferred error attention, do not check for
12702 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12703 spin_unlock_irqrestore(&phba->hbalock, iflag);
12706 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12708 readl(phba->HAregaddr); /* flush */
12709 spin_unlock_irqrestore(&phba->hbalock, iflag);
12711 ha_copy = phba->ha_copy;
12714 * Process all events on FCP ring. Take the optimized path for FCP IO.
12716 ha_copy &= ~(phba->work_ha_mask);
12718 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12719 status >>= (4*LPFC_FCP_RING);
12720 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12721 if (status & HA_RXMASK)
12722 lpfc_sli_handle_fast_ring_event(phba, pring, status);
12724 if (phba->cfg_multi_ring_support == 2) {
12726 * Process all events on extra ring. Take the optimized path
12727 * for extra ring IO.
12729 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12730 status >>= (4*LPFC_EXTRA_RING);
12731 if (status & HA_RXMASK) {
12732 lpfc_sli_handle_fast_ring_event(phba,
12733 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
12737 return IRQ_HANDLED;
12738 } /* lpfc_sli_fp_intr_handler */
12741 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
12742 * @irq: Interrupt number.
12743 * @dev_id: The device context pointer.
12745 * This function is the HBA device-level interrupt handler to device with
12746 * SLI-3 interface spec, called from the PCI layer when either MSI or
12747 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12748 * requires driver attention. This function invokes the slow-path interrupt
12749 * attention handling function and fast-path interrupt attention handling
12750 * function in turn to process the relevant HBA attention events. This
12751 * function is called without any lock held. It gets the hbalock to access
12752 * and update SLI data structures.
12754 * This function returns IRQ_HANDLED when interrupt is handled, else it
12755 * returns IRQ_NONE.
12758 lpfc_sli_intr_handler(int irq, void *dev_id)
12760 struct lpfc_hba *phba;
12761 irqreturn_t sp_irq_rc, fp_irq_rc;
12762 unsigned long status1, status2;
12766 * Get the driver's phba structure from the dev_id and
12767 * assume the HBA is not interrupting.
12769 phba = (struct lpfc_hba *) dev_id;
12771 if (unlikely(!phba))
12774 /* Check device state for handling interrupt */
12775 if (lpfc_intr_state_check(phba))
12778 spin_lock(&phba->hbalock);
12779 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12780 spin_unlock(&phba->hbalock);
12781 return IRQ_HANDLED;
12784 if (unlikely(!phba->ha_copy)) {
12785 spin_unlock(&phba->hbalock);
12787 } else if (phba->ha_copy & HA_ERATT) {
12788 if (phba->hba_flag & HBA_ERATT_HANDLED)
12789 /* ERATT polling has handled ERATT */
12790 phba->ha_copy &= ~HA_ERATT;
12792 /* Indicate interrupt handler handles ERATT */
12793 phba->hba_flag |= HBA_ERATT_HANDLED;
12797 * If there is deferred error attention, do not check for any interrupt.
12799 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12800 spin_unlock(&phba->hbalock);
12804 /* Clear attention sources except link and error attentions */
12805 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12806 spin_unlock(&phba->hbalock);
12807 return IRQ_HANDLED;
12809 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12810 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12812 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
12813 writel(hc_copy, phba->HCregaddr);
12814 readl(phba->HAregaddr); /* flush */
12815 spin_unlock(&phba->hbalock);
12818 * Invokes slow-path host attention interrupt handling as appropriate.
12821 /* status of events with mailbox and link attention */
12822 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12824 /* status of events with ELS ring */
12825 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12826 status2 >>= (4*LPFC_ELS_RING);
12828 if (status1 || (status2 & HA_RXMASK))
12829 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
12831 sp_irq_rc = IRQ_NONE;
12834 * Invoke fast-path host attention interrupt handling as appropriate.
12837 /* status of events with FCP ring */
12838 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12839 status1 >>= (4*LPFC_FCP_RING);
12841 /* status of events with extra ring */
12842 if (phba->cfg_multi_ring_support == 2) {
12843 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12844 status2 >>= (4*LPFC_EXTRA_RING);
12848 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
12849 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
12851 fp_irq_rc = IRQ_NONE;
12853 /* Return device-level interrupt handling status */
12854 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
12855 } /* lpfc_sli_intr_handler */
12858 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
12859 * @phba: pointer to lpfc hba data structure.
12861 * This routine is invoked by the worker thread to process all the pending
12862 * SLI4 FCP abort XRI events.
12864 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
12866 struct lpfc_cq_event *cq_event;
12868 /* First, declare the fcp xri abort event has been handled */
12869 spin_lock_irq(&phba->hbalock);
12870 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
12871 spin_unlock_irq(&phba->hbalock);
12872 /* Now, handle all the fcp xri abort events */
12873 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
12874 /* Get the first event from the head of the event queue */
12875 spin_lock_irq(&phba->hbalock);
12876 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
12877 cq_event, struct lpfc_cq_event, list);
12878 spin_unlock_irq(&phba->hbalock);
12879 /* Notify aborted XRI for FCP work queue */
12880 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12881 /* Free the event processed back to the free pool */
12882 lpfc_sli4_cq_event_release(phba, cq_event);
12887 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12888 * @phba: pointer to lpfc hba data structure.
12890 * This routine is invoked by the worker thread to process all the pending
12891 * SLI4 els abort xri events.
12893 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12895 struct lpfc_cq_event *cq_event;
12897 /* First, declare the els xri abort event has been handled */
12898 spin_lock_irq(&phba->hbalock);
12899 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12900 spin_unlock_irq(&phba->hbalock);
12901 /* Now, handle all the els xri abort events */
12902 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12903 /* Get the first event from the head of the event queue */
12904 spin_lock_irq(&phba->hbalock);
12905 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12906 cq_event, struct lpfc_cq_event, list);
12907 spin_unlock_irq(&phba->hbalock);
12908 /* Notify aborted XRI for ELS work queue */
12909 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12910 /* Free the event processed back to the free pool */
12911 lpfc_sli4_cq_event_release(phba, cq_event);
12916 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12917 * @phba: pointer to lpfc hba data structure
12918 * @pIocbIn: pointer to the rspiocbq
12919 * @pIocbOut: pointer to the cmdiocbq
12920 * @wcqe: pointer to the complete wcqe
12922 * This routine transfers the fields of a command iocbq to a response iocbq
12923 * by copying all the IOCB fields from command iocbq and transferring the
12924 * completion status information from the complete wcqe.
12927 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12928 struct lpfc_iocbq *pIocbIn,
12929 struct lpfc_iocbq *pIocbOut,
12930 struct lpfc_wcqe_complete *wcqe)
12933 unsigned long iflags;
12934 uint32_t status, max_response;
12935 struct lpfc_dmabuf *dmabuf;
12936 struct ulp_bde64 *bpl, bde;
12937 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12939 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12940 sizeof(struct lpfc_iocbq) - offset);
12941 /* Map WCQE parameters into irspiocb parameters */
12942 status = bf_get(lpfc_wcqe_c_status, wcqe);
12943 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
12944 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12945 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12946 pIocbIn->iocb.un.fcpi.fcpi_parm =
12947 pIocbOut->iocb.un.fcpi.fcpi_parm -
12948 wcqe->total_data_placed;
12950 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12952 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12953 switch (pIocbOut->iocb.ulpCommand) {
12954 case CMD_ELS_REQUEST64_CR:
12955 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12956 bpl = (struct ulp_bde64 *)dmabuf->virt;
12957 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12958 max_response = bde.tus.f.bdeSize;
12960 case CMD_GEN_REQUEST64_CR:
12962 if (!pIocbOut->context3)
12964 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12965 sizeof(struct ulp_bde64);
12966 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12967 bpl = (struct ulp_bde64 *)dmabuf->virt;
12968 for (i = 0; i < numBdes; i++) {
12969 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12970 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12971 max_response += bde.tus.f.bdeSize;
12975 max_response = wcqe->total_data_placed;
12978 if (max_response < wcqe->total_data_placed)
12979 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12981 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12982 wcqe->total_data_placed;
12985 /* Convert BG errors for completion status */
12986 if (status == CQE_STATUS_DI_ERROR) {
12987 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
12989 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
12990 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
12992 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
12994 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
12995 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
12996 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12997 BGS_GUARD_ERR_MASK;
12998 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
12999 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13000 BGS_APPTAG_ERR_MASK;
13001 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
13002 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13003 BGS_REFTAG_ERR_MASK;
13005 /* Check to see if there was any good data before the error */
13006 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
13007 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13008 BGS_HI_WATER_MARK_PRESENT_MASK;
13009 pIocbIn->iocb.unsli3.sli3_bg.bghm =
13010 wcqe->total_data_placed;
13014 * Set ALL the error bits to indicate we don't know what
13015 * type of error it is.
13017 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
13018 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13019 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
13020 BGS_GUARD_ERR_MASK);
13023 /* Pick up HBA exchange busy condition */
13024 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
13025 spin_lock_irqsave(&phba->hbalock, iflags);
13026 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
13027 spin_unlock_irqrestore(&phba->hbalock, iflags);
13032 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
13033 * @phba: Pointer to HBA context object.
13034 * @wcqe: Pointer to work-queue completion queue entry.
13036 * This routine handles an ELS work-queue completion event and construct
13037 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
13038 * discovery engine to handle.
13040 * Return: Pointer to the receive IOCBQ, NULL otherwise.
13042 static struct lpfc_iocbq *
13043 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
13044 struct lpfc_iocbq *irspiocbq)
13046 struct lpfc_sli_ring *pring;
13047 struct lpfc_iocbq *cmdiocbq;
13048 struct lpfc_wcqe_complete *wcqe;
13049 unsigned long iflags;
13051 pring = lpfc_phba_elsring(phba);
13052 if (unlikely(!pring))
13055 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
13056 spin_lock_irqsave(&pring->ring_lock, iflags);
13057 pring->stats.iocb_event++;
13058 /* Look up the ELS command IOCB and create pseudo response IOCB */
13059 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13060 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13061 if (unlikely(!cmdiocbq)) {
13062 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13063 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13064 "0386 ELS complete with no corresponding "
13065 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
13066 wcqe->word0, wcqe->total_data_placed,
13067 wcqe->parameter, wcqe->word3);
13068 lpfc_sli_release_iocbq(phba, irspiocbq);
13072 /* Put the iocb back on the txcmplq */
13073 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
13074 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13076 /* Fake the irspiocbq and copy necessary response information */
13077 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
13082 inline struct lpfc_cq_event *
13083 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
13085 struct lpfc_cq_event *cq_event;
13087 /* Allocate a new internal CQ_EVENT entry */
13088 cq_event = lpfc_sli4_cq_event_alloc(phba);
13090 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13091 "0602 Failed to alloc CQ_EVENT entry\n");
13095 /* Move the CQE into the event */
13096 memcpy(&cq_event->cqe, entry, size);
13101 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
13102 * @phba: Pointer to HBA context object.
13103 * @cqe: Pointer to mailbox completion queue entry.
13105 * This routine process a mailbox completion queue entry with asynchrous
13108 * Return: true if work posted to worker thread, otherwise false.
13111 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13113 struct lpfc_cq_event *cq_event;
13114 unsigned long iflags;
13116 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13117 "0392 Async Event: word0:x%x, word1:x%x, "
13118 "word2:x%x, word3:x%x\n", mcqe->word0,
13119 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
13121 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
13124 spin_lock_irqsave(&phba->hbalock, iflags);
13125 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
13126 /* Set the async event flag */
13127 phba->hba_flag |= ASYNC_EVENT;
13128 spin_unlock_irqrestore(&phba->hbalock, iflags);
13134 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
13135 * @phba: Pointer to HBA context object.
13136 * @cqe: Pointer to mailbox completion queue entry.
13138 * This routine process a mailbox completion queue entry with mailbox
13139 * completion event.
13141 * Return: true if work posted to worker thread, otherwise false.
13144 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13146 uint32_t mcqe_status;
13147 MAILBOX_t *mbox, *pmbox;
13148 struct lpfc_mqe *mqe;
13149 struct lpfc_vport *vport;
13150 struct lpfc_nodelist *ndlp;
13151 struct lpfc_dmabuf *mp;
13152 unsigned long iflags;
13154 bool workposted = false;
13157 /* If not a mailbox complete MCQE, out by checking mailbox consume */
13158 if (!bf_get(lpfc_trailer_completed, mcqe))
13159 goto out_no_mqe_complete;
13161 /* Get the reference to the active mbox command */
13162 spin_lock_irqsave(&phba->hbalock, iflags);
13163 pmb = phba->sli.mbox_active;
13164 if (unlikely(!pmb)) {
13165 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13166 "1832 No pending MBOX command to handle\n");
13167 spin_unlock_irqrestore(&phba->hbalock, iflags);
13168 goto out_no_mqe_complete;
13170 spin_unlock_irqrestore(&phba->hbalock, iflags);
13172 pmbox = (MAILBOX_t *)&pmb->u.mqe;
13174 vport = pmb->vport;
13176 /* Reset heartbeat timer */
13177 phba->last_completion_time = jiffies;
13178 del_timer(&phba->sli.mbox_tmo);
13180 /* Move mbox data to caller's mailbox region, do endian swapping */
13181 if (pmb->mbox_cmpl && mbox)
13182 lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
13185 * For mcqe errors, conditionally move a modified error code to
13186 * the mbox so that the error will not be missed.
13188 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
13189 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
13190 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
13191 bf_set(lpfc_mqe_status, mqe,
13192 (LPFC_MBX_ERROR_RANGE | mcqe_status));
13194 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
13195 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
13196 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
13197 "MBOX dflt rpi: status:x%x rpi:x%x",
13199 pmbox->un.varWords[0], 0);
13200 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
13201 mp = (struct lpfc_dmabuf *)(pmb->context1);
13202 ndlp = (struct lpfc_nodelist *)pmb->context2;
13203 /* Reg_LOGIN of dflt RPI was successful. Now lets get
13204 * RID of the PPI using the same mbox buffer.
13206 lpfc_unreg_login(phba, vport->vpi,
13207 pmbox->un.varWords[0], pmb);
13208 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
13209 pmb->context1 = mp;
13210 pmb->context2 = ndlp;
13211 pmb->vport = vport;
13212 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
13213 if (rc != MBX_BUSY)
13214 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
13215 LOG_SLI, "0385 rc should "
13216 "have been MBX_BUSY\n");
13217 if (rc != MBX_NOT_FINISHED)
13218 goto send_current_mbox;
13221 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
13222 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
13223 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
13225 /* There is mailbox completion work to do */
13226 spin_lock_irqsave(&phba->hbalock, iflags);
13227 __lpfc_mbox_cmpl_put(phba, pmb);
13228 phba->work_ha |= HA_MBATT;
13229 spin_unlock_irqrestore(&phba->hbalock, iflags);
13233 spin_lock_irqsave(&phba->hbalock, iflags);
13234 /* Release the mailbox command posting token */
13235 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13236 /* Setting active mailbox pointer need to be in sync to flag clear */
13237 phba->sli.mbox_active = NULL;
13238 spin_unlock_irqrestore(&phba->hbalock, iflags);
13239 /* Wake up worker thread to post the next pending mailbox command */
13240 lpfc_worker_wake_up(phba);
13241 out_no_mqe_complete:
13242 if (bf_get(lpfc_trailer_consumed, mcqe))
13243 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13248 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
13249 * @phba: Pointer to HBA context object.
13250 * @cqe: Pointer to mailbox completion queue entry.
13252 * This routine process a mailbox completion queue entry, it invokes the
13253 * proper mailbox complete handling or asynchrous event handling routine
13254 * according to the MCQE's async bit.
13256 * Return: true if work posted to worker thread, otherwise false.
13259 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
13261 struct lpfc_mcqe mcqe;
13264 /* Copy the mailbox MCQE and convert endian order as needed */
13265 lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
13267 /* Invoke the proper event handling routine */
13268 if (!bf_get(lpfc_trailer_async, &mcqe))
13269 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
13271 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
13276 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
13277 * @phba: Pointer to HBA context object.
13278 * @cq: Pointer to associated CQ
13279 * @wcqe: Pointer to work-queue completion queue entry.
13281 * This routine handles an ELS work-queue completion event.
13283 * Return: true if work posted to worker thread, otherwise false.
13286 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13287 struct lpfc_wcqe_complete *wcqe)
13289 struct lpfc_iocbq *irspiocbq;
13290 unsigned long iflags;
13291 struct lpfc_sli_ring *pring = cq->pring;
13293 int txcmplq_cnt = 0;
13294 int fcp_txcmplq_cnt = 0;
13296 /* Check for response status */
13297 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13298 /* Log the error status */
13299 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13300 "0357 ELS CQE error: status=x%x: "
13301 "CQE: %08x %08x %08x %08x\n",
13302 bf_get(lpfc_wcqe_c_status, wcqe),
13303 wcqe->word0, wcqe->total_data_placed,
13304 wcqe->parameter, wcqe->word3);
13307 /* Get an irspiocbq for later ELS response processing use */
13308 irspiocbq = lpfc_sli_get_iocbq(phba);
13310 if (!list_empty(&pring->txq))
13312 if (!list_empty(&pring->txcmplq))
13314 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13315 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
13316 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
13317 txq_cnt, phba->iocb_cnt,
13323 /* Save off the slow-path queue event for work thread to process */
13324 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
13325 spin_lock_irqsave(&phba->hbalock, iflags);
13326 list_add_tail(&irspiocbq->cq_event.list,
13327 &phba->sli4_hba.sp_queue_event);
13328 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13329 spin_unlock_irqrestore(&phba->hbalock, iflags);
13335 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
13336 * @phba: Pointer to HBA context object.
13337 * @wcqe: Pointer to work-queue completion queue entry.
13339 * This routine handles slow-path WQ entry consumed event by invoking the
13340 * proper WQ release routine to the slow-path WQ.
13343 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
13344 struct lpfc_wcqe_release *wcqe)
13346 /* sanity check on queue memory */
13347 if (unlikely(!phba->sli4_hba.els_wq))
13349 /* Check for the slow-path ELS work queue */
13350 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
13351 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
13352 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13354 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13355 "2579 Slow-path wqe consume event carries "
13356 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
13357 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
13358 phba->sli4_hba.els_wq->queue_id);
13362 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
13363 * @phba: Pointer to HBA context object.
13364 * @cq: Pointer to a WQ completion queue.
13365 * @wcqe: Pointer to work-queue completion queue entry.
13367 * This routine handles an XRI abort event.
13369 * Return: true if work posted to worker thread, otherwise false.
13372 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
13373 struct lpfc_queue *cq,
13374 struct sli4_wcqe_xri_aborted *wcqe)
13376 bool workposted = false;
13377 struct lpfc_cq_event *cq_event;
13378 unsigned long iflags;
13380 switch (cq->subtype) {
13382 cq_event = lpfc_cq_event_setup(
13383 phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
13386 spin_lock_irqsave(&phba->hbalock, iflags);
13387 list_add_tail(&cq_event->list,
13388 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
13389 /* Set the fcp xri abort event flag */
13390 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
13391 spin_unlock_irqrestore(&phba->hbalock, iflags);
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 spin_lock_irqsave(&phba->hbalock, iflags);
13401 list_add_tail(&cq_event->list,
13402 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
13403 /* Set the els xri abort event flag */
13404 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
13405 spin_unlock_irqrestore(&phba->hbalock, iflags);
13409 /* Notify aborted XRI for NVME work queue */
13410 if (phba->nvmet_support)
13411 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
13413 lpfc_sli4_nvme_xri_aborted(phba, wcqe);
13415 workposted = false;
13418 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13419 "0603 Invalid CQ subtype %d: "
13420 "%08x %08x %08x %08x\n",
13421 cq->subtype, wcqe->word0, wcqe->parameter,
13422 wcqe->word2, wcqe->word3);
13423 workposted = false;
13430 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
13431 * @phba: Pointer to HBA context object.
13432 * @rcqe: Pointer to receive-queue completion queue entry.
13434 * This routine process a receive-queue completion queue entry.
13436 * Return: true if work posted to worker thread, otherwise false.
13439 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
13441 bool workposted = false;
13442 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
13443 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
13444 struct lpfc_nvmet_tgtport *tgtp;
13445 struct hbq_dmabuf *dma_buf;
13446 uint32_t status, rq_id;
13447 unsigned long iflags;
13449 /* sanity check on queue memory */
13450 if (unlikely(!hrq) || unlikely(!drq))
13453 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13454 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13456 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13457 if (rq_id != hrq->queue_id)
13460 status = bf_get(lpfc_rcqe_status, rcqe);
13462 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13463 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13464 "2537 Receive Frame Truncated!!\n");
13465 case FC_STATUS_RQ_SUCCESS:
13466 spin_lock_irqsave(&phba->hbalock, iflags);
13467 lpfc_sli4_rq_release(hrq, drq);
13468 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
13470 hrq->RQ_no_buf_found++;
13471 spin_unlock_irqrestore(&phba->hbalock, iflags);
13475 hrq->RQ_buf_posted--;
13476 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
13478 /* save off the frame for the word thread to process */
13479 list_add_tail(&dma_buf->cq_event.list,
13480 &phba->sli4_hba.sp_queue_event);
13481 /* Frame received */
13482 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13483 spin_unlock_irqrestore(&phba->hbalock, iflags);
13486 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13487 if (phba->nvmet_support) {
13488 tgtp = phba->targetport->private;
13489 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13490 "6402 RQE Error x%x, posted %d err_cnt "
13492 status, hrq->RQ_buf_posted,
13493 hrq->RQ_no_posted_buf,
13494 atomic_read(&tgtp->rcv_fcp_cmd_in),
13495 atomic_read(&tgtp->rcv_fcp_cmd_out),
13496 atomic_read(&tgtp->xmt_fcp_release));
13500 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13501 hrq->RQ_no_posted_buf++;
13502 /* Post more buffers if possible */
13503 spin_lock_irqsave(&phba->hbalock, iflags);
13504 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
13505 spin_unlock_irqrestore(&phba->hbalock, iflags);
13514 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
13515 * @phba: Pointer to HBA context object.
13516 * @cq: Pointer to the completion queue.
13517 * @wcqe: Pointer to a completion queue entry.
13519 * This routine process a slow-path work-queue or receive queue completion queue
13522 * Return: true if work posted to worker thread, otherwise false.
13525 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13526 struct lpfc_cqe *cqe)
13528 struct lpfc_cqe cqevt;
13529 bool workposted = false;
13531 /* Copy the work queue CQE and convert endian order if needed */
13532 lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
13534 /* Check and process for different type of WCQE and dispatch */
13535 switch (bf_get(lpfc_cqe_code, &cqevt)) {
13536 case CQE_CODE_COMPL_WQE:
13537 /* Process the WQ/RQ complete event */
13538 phba->last_completion_time = jiffies;
13539 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
13540 (struct lpfc_wcqe_complete *)&cqevt);
13542 case CQE_CODE_RELEASE_WQE:
13543 /* Process the WQ release event */
13544 lpfc_sli4_sp_handle_rel_wcqe(phba,
13545 (struct lpfc_wcqe_release *)&cqevt);
13547 case CQE_CODE_XRI_ABORTED:
13548 /* Process the WQ XRI abort event */
13549 phba->last_completion_time = jiffies;
13550 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13551 (struct sli4_wcqe_xri_aborted *)&cqevt);
13553 case CQE_CODE_RECEIVE:
13554 case CQE_CODE_RECEIVE_V1:
13555 /* Process the RQ event */
13556 phba->last_completion_time = jiffies;
13557 workposted = lpfc_sli4_sp_handle_rcqe(phba,
13558 (struct lpfc_rcqe *)&cqevt);
13561 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13562 "0388 Not a valid WCQE code: x%x\n",
13563 bf_get(lpfc_cqe_code, &cqevt));
13570 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
13571 * @phba: Pointer to HBA context object.
13572 * @eqe: Pointer to fast-path event queue entry.
13574 * This routine process a event queue entry from the slow-path event queue.
13575 * It will check the MajorCode and MinorCode to determine this is for a
13576 * completion event on a completion queue, if not, an error shall be logged
13577 * and just return. Otherwise, it will get to the corresponding completion
13578 * queue and process all the entries on that completion queue, rearm the
13579 * completion queue, and then return.
13583 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13584 struct lpfc_queue *speq)
13586 struct lpfc_queue *cq = NULL, *childq;
13589 /* Get the reference to the corresponding CQ */
13590 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13592 list_for_each_entry(childq, &speq->child_list, list) {
13593 if (childq->queue_id == cqid) {
13598 if (unlikely(!cq)) {
13599 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13600 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13601 "0365 Slow-path CQ identifier "
13602 "(%d) does not exist\n", cqid);
13606 /* Save EQ associated with this CQ */
13607 cq->assoc_qp = speq;
13609 if (!queue_work(phba->wq, &cq->spwork))
13610 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13611 "0390 Cannot schedule soft IRQ "
13612 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
13613 cqid, cq->queue_id, smp_processor_id());
13617 * lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
13618 * @phba: Pointer to HBA context object.
13620 * This routine process a event queue entry from the slow-path event queue.
13621 * It will check the MajorCode and MinorCode to determine this is for a
13622 * completion event on a completion queue, if not, an error shall be logged
13623 * and just return. Otherwise, it will get to the corresponding completion
13624 * queue and process all the entries on that completion queue, rearm the
13625 * completion queue, and then return.
13629 lpfc_sli4_sp_process_cq(struct work_struct *work)
13631 struct lpfc_queue *cq =
13632 container_of(work, struct lpfc_queue, spwork);
13633 struct lpfc_hba *phba = cq->phba;
13634 struct lpfc_cqe *cqe;
13635 bool workposted = false;
13638 /* Process all the entries to the CQ */
13639 switch (cq->type) {
13641 while ((cqe = lpfc_sli4_cq_get(cq))) {
13642 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
13643 if (!(++ccount % cq->entry_repost))
13649 while ((cqe = lpfc_sli4_cq_get(cq))) {
13650 if (cq->subtype == LPFC_FCP ||
13651 cq->subtype == LPFC_NVME) {
13652 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13653 if (phba->ktime_on)
13654 cq->isr_timestamp = ktime_get_ns();
13656 cq->isr_timestamp = 0;
13658 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq,
13661 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
13664 if (!(++ccount % cq->entry_repost))
13668 /* Track the max number of CQEs processed in 1 EQ */
13669 if (ccount > cq->CQ_max_cqe)
13670 cq->CQ_max_cqe = ccount;
13673 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13674 "0370 Invalid completion queue type (%d)\n",
13679 /* Catch the no cq entry condition, log an error */
13680 if (unlikely(ccount == 0))
13681 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13682 "0371 No entry from the CQ: identifier "
13683 "(x%x), type (%d)\n", cq->queue_id, cq->type);
13685 /* In any case, flash and re-arm the RCQ */
13686 phba->sli4_hba.sli4_cq_release(cq, LPFC_QUEUE_REARM);
13688 /* wake up worker thread if there are works to be done */
13690 lpfc_worker_wake_up(phba);
13694 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
13695 * @phba: Pointer to HBA context object.
13696 * @cq: Pointer to associated CQ
13697 * @wcqe: Pointer to work-queue completion queue entry.
13699 * This routine process a fast-path work queue completion entry from fast-path
13700 * event queue for FCP command response completion.
13703 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13704 struct lpfc_wcqe_complete *wcqe)
13706 struct lpfc_sli_ring *pring = cq->pring;
13707 struct lpfc_iocbq *cmdiocbq;
13708 struct lpfc_iocbq irspiocbq;
13709 unsigned long iflags;
13711 /* Check for response status */
13712 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13713 /* If resource errors reported from HBA, reduce queue
13714 * depth of the SCSI device.
13716 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13717 IOSTAT_LOCAL_REJECT)) &&
13718 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13719 IOERR_NO_RESOURCES))
13720 phba->lpfc_rampdown_queue_depth(phba);
13722 /* Log the error status */
13723 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13724 "0373 FCP CQE error: status=x%x: "
13725 "CQE: %08x %08x %08x %08x\n",
13726 bf_get(lpfc_wcqe_c_status, wcqe),
13727 wcqe->word0, wcqe->total_data_placed,
13728 wcqe->parameter, wcqe->word3);
13731 /* Look up the FCP command IOCB and create pseudo response IOCB */
13732 spin_lock_irqsave(&pring->ring_lock, iflags);
13733 pring->stats.iocb_event++;
13734 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13735 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13736 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13737 if (unlikely(!cmdiocbq)) {
13738 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13739 "0374 FCP complete with no corresponding "
13740 "cmdiocb: iotag (%d)\n",
13741 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13744 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13745 cmdiocbq->isr_timestamp = cq->isr_timestamp;
13747 if (cmdiocbq->iocb_cmpl == NULL) {
13748 if (cmdiocbq->wqe_cmpl) {
13749 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13750 spin_lock_irqsave(&phba->hbalock, iflags);
13751 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13752 spin_unlock_irqrestore(&phba->hbalock, iflags);
13755 /* Pass the cmd_iocb and the wcqe to the upper layer */
13756 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13759 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13760 "0375 FCP cmdiocb not callback function "
13762 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13766 /* Fake the irspiocb and copy necessary response information */
13767 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
13769 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13770 spin_lock_irqsave(&phba->hbalock, iflags);
13771 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13772 spin_unlock_irqrestore(&phba->hbalock, iflags);
13775 /* Pass the cmd_iocb and the rsp state to the upper layer */
13776 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13780 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13781 * @phba: Pointer to HBA context object.
13782 * @cq: Pointer to completion queue.
13783 * @wcqe: Pointer to work-queue completion queue entry.
13785 * This routine handles an fast-path WQ entry consumed event by invoking the
13786 * proper WQ release routine to the slow-path WQ.
13789 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13790 struct lpfc_wcqe_release *wcqe)
13792 struct lpfc_queue *childwq;
13793 bool wqid_matched = false;
13796 /* Check for fast-path FCP work queue release */
13797 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
13798 list_for_each_entry(childwq, &cq->child_list, list) {
13799 if (childwq->queue_id == hba_wqid) {
13800 lpfc_sli4_wq_release(childwq,
13801 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13802 if (childwq->q_flag & HBA_NVMET_WQFULL)
13803 lpfc_nvmet_wqfull_process(phba, childwq);
13804 wqid_matched = true;
13808 /* Report warning log message if no match found */
13809 if (wqid_matched != true)
13810 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13811 "2580 Fast-path wqe consume event carries "
13812 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
13816 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13817 * @phba: Pointer to HBA context object.
13818 * @rcqe: Pointer to receive-queue completion queue entry.
13820 * This routine process a receive-queue completion queue entry.
13822 * Return: true if work posted to worker thread, otherwise false.
13825 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13826 struct lpfc_rcqe *rcqe)
13828 bool workposted = false;
13829 struct lpfc_queue *hrq;
13830 struct lpfc_queue *drq;
13831 struct rqb_dmabuf *dma_buf;
13832 struct fc_frame_header *fc_hdr;
13833 struct lpfc_nvmet_tgtport *tgtp;
13834 uint32_t status, rq_id;
13835 unsigned long iflags;
13836 uint32_t fctl, idx;
13838 if ((phba->nvmet_support == 0) ||
13839 (phba->sli4_hba.nvmet_cqset == NULL))
13842 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13843 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13844 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13846 /* sanity check on queue memory */
13847 if (unlikely(!hrq) || unlikely(!drq))
13850 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13851 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13853 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13855 if ((phba->nvmet_support == 0) ||
13856 (rq_id != hrq->queue_id))
13859 status = bf_get(lpfc_rcqe_status, rcqe);
13861 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13862 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13863 "6126 Receive Frame Truncated!!\n");
13865 case FC_STATUS_RQ_SUCCESS:
13866 spin_lock_irqsave(&phba->hbalock, iflags);
13867 lpfc_sli4_rq_release(hrq, drq);
13868 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13870 hrq->RQ_no_buf_found++;
13871 spin_unlock_irqrestore(&phba->hbalock, iflags);
13874 spin_unlock_irqrestore(&phba->hbalock, iflags);
13876 hrq->RQ_buf_posted--;
13877 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13879 /* Just some basic sanity checks on FCP Command frame */
13880 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
13881 fc_hdr->fh_f_ctl[1] << 8 |
13882 fc_hdr->fh_f_ctl[2]);
13884 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
13885 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
13886 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
13889 if (fc_hdr->fh_type == FC_TYPE_FCP) {
13890 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
13891 lpfc_nvmet_unsol_fcp_event(
13892 phba, idx, dma_buf,
13893 cq->isr_timestamp);
13897 lpfc_in_buf_free(phba, &dma_buf->dbuf);
13899 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13900 if (phba->nvmet_support) {
13901 tgtp = phba->targetport->private;
13902 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13903 "6401 RQE Error x%x, posted %d err_cnt "
13905 status, hrq->RQ_buf_posted,
13906 hrq->RQ_no_posted_buf,
13907 atomic_read(&tgtp->rcv_fcp_cmd_in),
13908 atomic_read(&tgtp->rcv_fcp_cmd_out),
13909 atomic_read(&tgtp->xmt_fcp_release));
13913 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13914 hrq->RQ_no_posted_buf++;
13915 /* Post more buffers if possible */
13923 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
13924 * @cq: Pointer to the completion queue.
13925 * @eqe: Pointer to fast-path completion queue entry.
13927 * This routine process a fast-path work queue completion entry from fast-path
13928 * event queue for FCP command response completion.
13931 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13932 struct lpfc_cqe *cqe)
13934 struct lpfc_wcqe_release wcqe;
13935 bool workposted = false;
13937 /* Copy the work queue CQE and convert endian order if needed */
13938 lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
13940 /* Check and process for different type of WCQE and dispatch */
13941 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
13942 case CQE_CODE_COMPL_WQE:
13943 case CQE_CODE_NVME_ERSP:
13945 /* Process the WQ complete event */
13946 phba->last_completion_time = jiffies;
13947 if ((cq->subtype == LPFC_FCP) || (cq->subtype == LPFC_NVME))
13948 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13949 (struct lpfc_wcqe_complete *)&wcqe);
13950 if (cq->subtype == LPFC_NVME_LS)
13951 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13952 (struct lpfc_wcqe_complete *)&wcqe);
13954 case CQE_CODE_RELEASE_WQE:
13955 cq->CQ_release_wqe++;
13956 /* Process the WQ release event */
13957 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
13958 (struct lpfc_wcqe_release *)&wcqe);
13960 case CQE_CODE_XRI_ABORTED:
13961 cq->CQ_xri_aborted++;
13962 /* Process the WQ XRI abort event */
13963 phba->last_completion_time = jiffies;
13964 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13965 (struct sli4_wcqe_xri_aborted *)&wcqe);
13967 case CQE_CODE_RECEIVE_V1:
13968 case CQE_CODE_RECEIVE:
13969 phba->last_completion_time = jiffies;
13970 if (cq->subtype == LPFC_NVMET) {
13971 workposted = lpfc_sli4_nvmet_handle_rcqe(
13972 phba, cq, (struct lpfc_rcqe *)&wcqe);
13976 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13977 "0144 Not a valid CQE code: x%x\n",
13978 bf_get(lpfc_wcqe_c_code, &wcqe));
13985 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
13986 * @phba: Pointer to HBA context object.
13987 * @eqe: Pointer to fast-path event queue entry.
13989 * This routine process a event queue entry from the fast-path event queue.
13990 * It will check the MajorCode and MinorCode to determine this is for a
13991 * completion event on a completion queue, if not, an error shall be logged
13992 * and just return. Otherwise, it will get to the corresponding completion
13993 * queue and process all the entries on the completion queue, rearm the
13994 * completion queue, and then return.
13997 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
14000 struct lpfc_queue *cq = NULL;
14003 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
14004 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14005 "0366 Not a valid completion "
14006 "event: majorcode=x%x, minorcode=x%x\n",
14007 bf_get_le32(lpfc_eqe_major_code, eqe),
14008 bf_get_le32(lpfc_eqe_minor_code, eqe));
14012 /* Get the reference to the corresponding CQ */
14013 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14015 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
14016 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
14017 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
14018 /* Process NVMET unsol rcv */
14019 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
14024 if (phba->sli4_hba.nvme_cq_map &&
14025 (cqid == phba->sli4_hba.nvme_cq_map[qidx])) {
14026 /* Process NVME / NVMET command completion */
14027 cq = phba->sli4_hba.nvme_cq[qidx];
14031 if (phba->sli4_hba.fcp_cq_map &&
14032 (cqid == phba->sli4_hba.fcp_cq_map[qidx])) {
14033 /* Process FCP command completion */
14034 cq = phba->sli4_hba.fcp_cq[qidx];
14038 if (phba->sli4_hba.nvmels_cq &&
14039 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
14040 /* Process NVME unsol rcv */
14041 cq = phba->sli4_hba.nvmels_cq;
14044 /* Otherwise this is a Slow path event */
14046 lpfc_sli4_sp_handle_eqe(phba, eqe, phba->sli4_hba.hba_eq[qidx]);
14051 if (unlikely(cqid != cq->queue_id)) {
14052 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14053 "0368 Miss-matched fast-path completion "
14054 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
14055 cqid, cq->queue_id);
14059 /* Save EQ associated with this CQ */
14060 cq->assoc_qp = phba->sli4_hba.hba_eq[qidx];
14062 if (!queue_work(phba->wq, &cq->irqwork))
14063 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14064 "0363 Cannot schedule soft IRQ "
14065 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14066 cqid, cq->queue_id, smp_processor_id());
14070 * lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
14071 * @phba: Pointer to HBA context object.
14072 * @eqe: Pointer to fast-path event queue entry.
14074 * This routine process a event queue entry from the fast-path event queue.
14075 * It will check the MajorCode and MinorCode to determine this is for a
14076 * completion event on a completion queue, if not, an error shall be logged
14077 * and just return. Otherwise, it will get to the corresponding completion
14078 * queue and process all the entries on the completion queue, rearm the
14079 * completion queue, and then return.
14082 lpfc_sli4_hba_process_cq(struct work_struct *work)
14084 struct lpfc_queue *cq =
14085 container_of(work, struct lpfc_queue, irqwork);
14086 struct lpfc_hba *phba = cq->phba;
14087 struct lpfc_cqe *cqe;
14088 bool workposted = false;
14091 /* Process all the entries to the CQ */
14092 while ((cqe = lpfc_sli4_cq_get(cq))) {
14093 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
14094 if (phba->ktime_on)
14095 cq->isr_timestamp = ktime_get_ns();
14097 cq->isr_timestamp = 0;
14099 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
14100 if (!(++ccount % cq->entry_repost))
14104 /* Track the max number of CQEs processed in 1 EQ */
14105 if (ccount > cq->CQ_max_cqe)
14106 cq->CQ_max_cqe = ccount;
14107 cq->assoc_qp->EQ_cqe_cnt += ccount;
14109 /* Catch the no cq entry condition */
14110 if (unlikely(ccount == 0))
14111 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14112 "0369 No entry from fast-path completion "
14113 "queue fcpcqid=%d\n", cq->queue_id);
14115 /* In any case, flash and re-arm the CQ */
14116 phba->sli4_hba.sli4_cq_release(cq, LPFC_QUEUE_REARM);
14118 /* wake up worker thread if there are works to be done */
14120 lpfc_worker_wake_up(phba);
14124 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
14126 struct lpfc_eqe *eqe;
14128 /* walk all the EQ entries and drop on the floor */
14129 while ((eqe = lpfc_sli4_eq_get(eq)))
14132 /* Clear and re-arm the EQ */
14133 phba->sli4_hba.sli4_eq_release(eq, LPFC_QUEUE_REARM);
14138 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
14140 * @phba: Pointer to HBA context object.
14141 * @eqe: Pointer to fast-path event queue entry.
14143 * This routine process a event queue entry from the Flash Optimized Fabric
14144 * event queue. It will check the MajorCode and MinorCode to determine this
14145 * is for a completion event on a completion queue, if not, an error shall be
14146 * logged and just return. Otherwise, it will get to the corresponding
14147 * completion queue and process all the entries on the completion queue, rearm
14148 * the completion queue, and then return.
14151 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
14153 struct lpfc_queue *cq;
14156 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
14157 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14158 "9147 Not a valid completion "
14159 "event: majorcode=x%x, minorcode=x%x\n",
14160 bf_get_le32(lpfc_eqe_major_code, eqe),
14161 bf_get_le32(lpfc_eqe_minor_code, eqe));
14165 /* Get the reference to the corresponding CQ */
14166 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14168 /* Next check for OAS */
14169 cq = phba->sli4_hba.oas_cq;
14170 if (unlikely(!cq)) {
14171 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
14172 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14173 "9148 OAS completion queue "
14174 "does not exist\n");
14178 if (unlikely(cqid != cq->queue_id)) {
14179 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14180 "9149 Miss-matched fast-path compl "
14181 "queue id: eqcqid=%d, fcpcqid=%d\n",
14182 cqid, cq->queue_id);
14186 /* Save EQ associated with this CQ */
14187 cq->assoc_qp = phba->sli4_hba.fof_eq;
14189 /* CQ work will be processed on CPU affinitized to this IRQ */
14190 if (!queue_work(phba->wq, &cq->irqwork))
14191 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14192 "0367 Cannot schedule soft IRQ "
14193 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14194 cqid, cq->queue_id, smp_processor_id());
14198 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
14199 * @irq: Interrupt number.
14200 * @dev_id: The device context pointer.
14202 * This function is directly called from the PCI layer as an interrupt
14203 * service routine when device with SLI-4 interface spec is enabled with
14204 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
14205 * IOCB ring event in the HBA. However, when the device is enabled with either
14206 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
14207 * device-level interrupt handler. When the PCI slot is in error recovery
14208 * or the HBA is undergoing initialization, the interrupt handler will not
14209 * process the interrupt. The Flash Optimized Fabric ring event are handled in
14210 * the intrrupt context. This function is called without any lock held.
14211 * It gets the hbalock to access and update SLI data structures. Note that,
14212 * the EQ to CQ are one-to-one map such that the EQ index is
14213 * equal to that of CQ index.
14215 * This function returns IRQ_HANDLED when interrupt is handled else it
14216 * returns IRQ_NONE.
14219 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
14221 struct lpfc_hba *phba;
14222 struct lpfc_hba_eq_hdl *hba_eq_hdl;
14223 struct lpfc_queue *eq;
14224 struct lpfc_eqe *eqe;
14225 unsigned long iflag;
14228 /* Get the driver's phba structure from the dev_id */
14229 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
14230 phba = hba_eq_hdl->phba;
14232 if (unlikely(!phba))
14235 /* Get to the EQ struct associated with this vector */
14236 eq = phba->sli4_hba.fof_eq;
14240 /* Check device state for handling interrupt */
14241 if (unlikely(lpfc_intr_state_check(phba))) {
14242 /* Check again for link_state with lock held */
14243 spin_lock_irqsave(&phba->hbalock, iflag);
14244 if (phba->link_state < LPFC_LINK_DOWN)
14245 /* Flush, clear interrupt, and rearm the EQ */
14246 lpfc_sli4_eq_flush(phba, eq);
14247 spin_unlock_irqrestore(&phba->hbalock, iflag);
14252 * Process all the event on FCP fast-path EQ
14254 while ((eqe = lpfc_sli4_eq_get(eq))) {
14255 lpfc_sli4_fof_handle_eqe(phba, eqe);
14256 if (!(++ecount % eq->entry_repost))
14258 eq->EQ_processed++;
14261 /* Track the max number of EQEs processed in 1 intr */
14262 if (ecount > eq->EQ_max_eqe)
14263 eq->EQ_max_eqe = ecount;
14266 if (unlikely(ecount == 0)) {
14269 if (phba->intr_type == MSIX)
14270 /* MSI-X treated interrupt served as no EQ share INT */
14271 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14272 "9145 MSI-X interrupt with no EQE\n");
14274 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14275 "9146 ISR interrupt with no EQE\n");
14276 /* Non MSI-X treated on interrupt as EQ share INT */
14280 /* Always clear and re-arm the fast-path EQ */
14281 phba->sli4_hba.sli4_eq_release(eq, LPFC_QUEUE_REARM);
14282 return IRQ_HANDLED;
14286 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
14287 * @irq: Interrupt number.
14288 * @dev_id: The device context pointer.
14290 * This function is directly called from the PCI layer as an interrupt
14291 * service routine when device with SLI-4 interface spec is enabled with
14292 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
14293 * ring event in the HBA. However, when the device is enabled with either
14294 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
14295 * device-level interrupt handler. When the PCI slot is in error recovery
14296 * or the HBA is undergoing initialization, the interrupt handler will not
14297 * process the interrupt. The SCSI FCP fast-path ring event are handled in
14298 * the intrrupt context. This function is called without any lock held.
14299 * It gets the hbalock to access and update SLI data structures. Note that,
14300 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
14301 * equal to that of FCP CQ index.
14303 * The link attention and ELS ring attention events are handled
14304 * by the worker thread. The interrupt handler signals the worker thread
14305 * and returns for these events. This function is called without any lock
14306 * held. It gets the hbalock to access and update SLI data structures.
14308 * This function returns IRQ_HANDLED when interrupt is handled else it
14309 * returns IRQ_NONE.
14312 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
14314 struct lpfc_hba *phba;
14315 struct lpfc_hba_eq_hdl *hba_eq_hdl;
14316 struct lpfc_queue *fpeq;
14317 struct lpfc_eqe *eqe;
14318 unsigned long iflag;
14322 /* Get the driver's phba structure from the dev_id */
14323 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
14324 phba = hba_eq_hdl->phba;
14325 hba_eqidx = hba_eq_hdl->idx;
14327 if (unlikely(!phba))
14329 if (unlikely(!phba->sli4_hba.hba_eq))
14332 /* Get to the EQ struct associated with this vector */
14333 fpeq = phba->sli4_hba.hba_eq[hba_eqidx];
14334 if (unlikely(!fpeq))
14337 if (lpfc_fcp_look_ahead) {
14338 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use))
14339 phba->sli4_hba.sli4_eq_clr_intr(fpeq);
14341 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14346 /* Check device state for handling interrupt */
14347 if (unlikely(lpfc_intr_state_check(phba))) {
14348 /* Check again for link_state with lock held */
14349 spin_lock_irqsave(&phba->hbalock, iflag);
14350 if (phba->link_state < LPFC_LINK_DOWN)
14351 /* Flush, clear interrupt, and rearm the EQ */
14352 lpfc_sli4_eq_flush(phba, fpeq);
14353 spin_unlock_irqrestore(&phba->hbalock, iflag);
14354 if (lpfc_fcp_look_ahead)
14355 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14360 * Process all the event on FCP fast-path EQ
14362 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
14363 lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx);
14364 if (!(++ecount % fpeq->entry_repost))
14366 fpeq->EQ_processed++;
14369 /* Track the max number of EQEs processed in 1 intr */
14370 if (ecount > fpeq->EQ_max_eqe)
14371 fpeq->EQ_max_eqe = ecount;
14373 /* Always clear and re-arm the fast-path EQ */
14374 phba->sli4_hba.sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
14376 if (unlikely(ecount == 0)) {
14377 fpeq->EQ_no_entry++;
14379 if (lpfc_fcp_look_ahead) {
14380 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14384 if (phba->intr_type == MSIX)
14385 /* MSI-X treated interrupt served as no EQ share INT */
14386 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14387 "0358 MSI-X interrupt with no EQE\n");
14389 /* Non MSI-X treated on interrupt as EQ share INT */
14393 if (lpfc_fcp_look_ahead)
14394 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14396 return IRQ_HANDLED;
14397 } /* lpfc_sli4_fp_intr_handler */
14400 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
14401 * @irq: Interrupt number.
14402 * @dev_id: The device context pointer.
14404 * This function is the device-level interrupt handler to device with SLI-4
14405 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
14406 * interrupt mode is enabled and there is an event in the HBA which requires
14407 * driver attention. This function invokes the slow-path interrupt attention
14408 * handling function and fast-path interrupt attention handling function in
14409 * turn to process the relevant HBA attention events. This function is called
14410 * without any lock held. It gets the hbalock to access and update SLI data
14413 * This function returns IRQ_HANDLED when interrupt is handled, else it
14414 * returns IRQ_NONE.
14417 lpfc_sli4_intr_handler(int irq, void *dev_id)
14419 struct lpfc_hba *phba;
14420 irqreturn_t hba_irq_rc;
14421 bool hba_handled = false;
14424 /* Get the driver's phba structure from the dev_id */
14425 phba = (struct lpfc_hba *)dev_id;
14427 if (unlikely(!phba))
14431 * Invoke fast-path host attention interrupt handling as appropriate.
14433 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) {
14434 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
14435 &phba->sli4_hba.hba_eq_hdl[qidx]);
14436 if (hba_irq_rc == IRQ_HANDLED)
14437 hba_handled |= true;
14440 if (phba->cfg_fof) {
14441 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
14442 &phba->sli4_hba.hba_eq_hdl[qidx]);
14443 if (hba_irq_rc == IRQ_HANDLED)
14444 hba_handled |= true;
14447 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
14448 } /* lpfc_sli4_intr_handler */
14451 * lpfc_sli4_queue_free - free a queue structure and associated memory
14452 * @queue: The queue structure to free.
14454 * This function frees a queue structure and the DMAable memory used for
14455 * the host resident queue. This function must be called after destroying the
14456 * queue on the HBA.
14459 lpfc_sli4_queue_free(struct lpfc_queue *queue)
14461 struct lpfc_dmabuf *dmabuf;
14466 while (!list_empty(&queue->page_list)) {
14467 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
14469 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
14470 dmabuf->virt, dmabuf->phys);
14474 lpfc_free_rq_buffer(queue->phba, queue);
14475 kfree(queue->rqbp);
14478 if (!list_empty(&queue->wq_list))
14479 list_del(&queue->wq_list);
14486 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
14487 * @phba: The HBA that this queue is being created on.
14488 * @page_size: The size of a queue page
14489 * @entry_size: The size of each queue entry for this queue.
14490 * @entry count: The number of entries that this queue will handle.
14492 * This function allocates a queue structure and the DMAable memory used for
14493 * the host resident queue. This function must be called before creating the
14494 * queue on the HBA.
14496 struct lpfc_queue *
14497 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
14498 uint32_t entry_size, uint32_t entry_count)
14500 struct lpfc_queue *queue;
14501 struct lpfc_dmabuf *dmabuf;
14502 int x, total_qe_count;
14504 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14506 if (!phba->sli4_hba.pc_sli4_params.supported)
14507 hw_page_size = page_size;
14509 queue = kzalloc(sizeof(struct lpfc_queue) +
14510 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
14513 queue->page_count = (ALIGN(entry_size * entry_count,
14514 hw_page_size))/hw_page_size;
14516 /* If needed, Adjust page count to match the max the adapter supports */
14517 if (queue->page_count > phba->sli4_hba.pc_sli4_params.wqpcnt)
14518 queue->page_count = phba->sli4_hba.pc_sli4_params.wqpcnt;
14520 INIT_LIST_HEAD(&queue->list);
14521 INIT_LIST_HEAD(&queue->wq_list);
14522 INIT_LIST_HEAD(&queue->wqfull_list);
14523 INIT_LIST_HEAD(&queue->page_list);
14524 INIT_LIST_HEAD(&queue->child_list);
14526 /* Set queue parameters now. If the system cannot provide memory
14527 * resources, the free routine needs to know what was allocated.
14529 queue->entry_size = entry_size;
14530 queue->entry_count = entry_count;
14531 queue->page_size = hw_page_size;
14532 queue->phba = phba;
14534 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
14535 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
14538 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
14539 hw_page_size, &dmabuf->phys,
14541 if (!dmabuf->virt) {
14545 dmabuf->buffer_tag = x;
14546 list_add_tail(&dmabuf->list, &queue->page_list);
14547 /* initialize queue's entry array */
14548 dma_pointer = dmabuf->virt;
14549 for (; total_qe_count < entry_count &&
14550 dma_pointer < (hw_page_size + dmabuf->virt);
14551 total_qe_count++, dma_pointer += entry_size) {
14552 queue->qe[total_qe_count].address = dma_pointer;
14555 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
14556 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
14558 /* entry_repost will be set during q creation */
14562 lpfc_sli4_queue_free(queue);
14567 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
14568 * @phba: HBA structure that indicates port to create a queue on.
14569 * @pci_barset: PCI BAR set flag.
14571 * This function shall perform iomap of the specified PCI BAR address to host
14572 * memory address if not already done so and return it. The returned host
14573 * memory address can be NULL.
14575 static void __iomem *
14576 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
14581 switch (pci_barset) {
14582 case WQ_PCI_BAR_0_AND_1:
14583 return phba->pci_bar0_memmap_p;
14584 case WQ_PCI_BAR_2_AND_3:
14585 return phba->pci_bar2_memmap_p;
14586 case WQ_PCI_BAR_4_AND_5:
14587 return phba->pci_bar4_memmap_p;
14595 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on FCP EQs
14596 * @phba: HBA structure that indicates port to create a queue on.
14597 * @startq: The starting FCP EQ to modify
14599 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
14600 * The command allows up to LPFC_MAX_EQ_DELAY_EQID_CNT EQ ID's to be
14601 * updated in one mailbox command.
14603 * The @phba struct is used to send mailbox command to HBA. The @startq
14604 * is used to get the starting FCP EQ to change.
14605 * This function is asynchronous and will wait for the mailbox
14606 * command to finish before continuing.
14608 * On success this function will return a zero. If unable to allocate enough
14609 * memory this function will return -ENOMEM. If the queue create mailbox command
14610 * fails this function will return -ENXIO.
14613 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
14614 uint32_t numq, uint32_t imax)
14616 struct lpfc_mbx_modify_eq_delay *eq_delay;
14617 LPFC_MBOXQ_t *mbox;
14618 struct lpfc_queue *eq;
14619 int cnt, rc, length, status = 0;
14620 uint32_t shdr_status, shdr_add_status;
14621 uint32_t result, val;
14623 union lpfc_sli4_cfg_shdr *shdr;
14626 if (startq >= phba->io_channel_irqs)
14629 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14632 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
14633 sizeof(struct lpfc_sli4_cfg_mhdr));
14634 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14635 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
14636 length, LPFC_SLI4_MBX_EMBED);
14637 eq_delay = &mbox->u.mqe.un.eq_delay;
14639 /* Calculate delay multiper from maximum interrupt per second */
14640 result = imax / phba->io_channel_irqs;
14641 if (result > LPFC_DMULT_CONST || result == 0)
14644 dmult = LPFC_DMULT_CONST/result - 1;
14645 if (dmult > LPFC_DMULT_MAX)
14646 dmult = LPFC_DMULT_MAX;
14649 for (qidx = startq; qidx < phba->io_channel_irqs; qidx++) {
14650 eq = phba->sli4_hba.hba_eq[qidx];
14654 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
14655 eq_delay->u.request.eq[cnt].phase = 0;
14656 eq_delay->u.request.eq[cnt].delay_multi = dmult;
14659 /* q_mode is only used for auto_imax */
14660 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
14661 /* Use EQ Delay Register method for q_mode */
14663 /* Convert for EQ Delay register */
14664 val = phba->cfg_fcp_imax;
14666 /* First, interrupts per sec per EQ */
14667 val = phba->cfg_fcp_imax /
14668 phba->io_channel_irqs;
14670 /* us delay between each interrupt */
14671 val = LPFC_SEC_TO_USEC / val;
14681 eq_delay->u.request.num_eq = cnt;
14683 mbox->vport = phba->pport;
14684 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14685 mbox->context1 = NULL;
14686 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14687 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
14688 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14689 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14690 if (shdr_status || shdr_add_status || rc) {
14691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14692 "2512 MODIFY_EQ_DELAY mailbox failed with "
14693 "status x%x add_status x%x, mbx status x%x\n",
14694 shdr_status, shdr_add_status, rc);
14697 mempool_free(mbox, phba->mbox_mem_pool);
14702 * lpfc_eq_create - Create an Event Queue on the HBA
14703 * @phba: HBA structure that indicates port to create a queue on.
14704 * @eq: The queue structure to use to create the event queue.
14705 * @imax: The maximum interrupt per second limit.
14707 * This function creates an event queue, as detailed in @eq, on a port,
14708 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
14710 * The @phba struct is used to send mailbox command to HBA. The @eq struct
14711 * is used to get the entry count and entry size that are necessary to
14712 * determine the number of pages to allocate and use for this queue. This
14713 * function will send the EQ_CREATE mailbox command to the HBA to setup the
14714 * event queue. This function is asynchronous and will wait for the mailbox
14715 * command to finish before continuing.
14717 * On success this function will return a zero. If unable to allocate enough
14718 * memory this function will return -ENOMEM. If the queue create mailbox command
14719 * fails this function will return -ENXIO.
14722 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
14724 struct lpfc_mbx_eq_create *eq_create;
14725 LPFC_MBOXQ_t *mbox;
14726 int rc, length, status = 0;
14727 struct lpfc_dmabuf *dmabuf;
14728 uint32_t shdr_status, shdr_add_status;
14729 union lpfc_sli4_cfg_shdr *shdr;
14731 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14733 /* sanity check on queue memory */
14736 if (!phba->sli4_hba.pc_sli4_params.supported)
14737 hw_page_size = SLI4_PAGE_SIZE;
14739 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14742 length = (sizeof(struct lpfc_mbx_eq_create) -
14743 sizeof(struct lpfc_sli4_cfg_mhdr));
14744 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14745 LPFC_MBOX_OPCODE_EQ_CREATE,
14746 length, LPFC_SLI4_MBX_EMBED);
14747 eq_create = &mbox->u.mqe.un.eq_create;
14748 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14749 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14751 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14753 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
14755 /* Use version 2 of CREATE_EQ if eqav is set */
14756 if (phba->sli4_hba.pc_sli4_params.eqav) {
14757 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14758 LPFC_Q_CREATE_VERSION_2);
14759 bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
14760 phba->sli4_hba.pc_sli4_params.eqav);
14763 /* don't setup delay multiplier using EQ_CREATE */
14765 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14767 switch (eq->entry_count) {
14769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14770 "0360 Unsupported EQ count. (%d)\n",
14772 if (eq->entry_count < 256)
14774 /* otherwise default to smallest count (drop through) */
14776 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14780 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14784 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14788 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14792 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14796 list_for_each_entry(dmabuf, &eq->page_list, list) {
14797 memset(dmabuf->virt, 0, hw_page_size);
14798 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14799 putPaddrLow(dmabuf->phys);
14800 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14801 putPaddrHigh(dmabuf->phys);
14803 mbox->vport = phba->pport;
14804 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14805 mbox->context1 = NULL;
14806 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14807 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14808 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14809 if (shdr_status || shdr_add_status || rc) {
14810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14811 "2500 EQ_CREATE mailbox failed with "
14812 "status x%x add_status x%x, mbx status x%x\n",
14813 shdr_status, shdr_add_status, rc);
14816 eq->type = LPFC_EQ;
14817 eq->subtype = LPFC_NONE;
14818 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14819 if (eq->queue_id == 0xFFFF)
14821 eq->host_index = 0;
14823 eq->entry_repost = LPFC_EQ_REPOST;
14825 mempool_free(mbox, phba->mbox_mem_pool);
14830 * lpfc_cq_create - Create a Completion Queue on the HBA
14831 * @phba: HBA structure that indicates port to create a queue on.
14832 * @cq: The queue structure to use to create the completion queue.
14833 * @eq: The event queue to bind this completion queue to.
14835 * This function creates a completion queue, as detailed in @wq, on a port,
14836 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14838 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14839 * is used to get the entry count and entry size that are necessary to
14840 * determine the number of pages to allocate and use for this queue. The @eq
14841 * is used to indicate which event queue to bind this completion queue to. This
14842 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14843 * completion queue. This function is asynchronous and will wait for the mailbox
14844 * command to finish before continuing.
14846 * On success this function will return a zero. If unable to allocate enough
14847 * memory this function will return -ENOMEM. If the queue create mailbox command
14848 * fails this function will return -ENXIO.
14851 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14852 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14854 struct lpfc_mbx_cq_create *cq_create;
14855 struct lpfc_dmabuf *dmabuf;
14856 LPFC_MBOXQ_t *mbox;
14857 int rc, length, status = 0;
14858 uint32_t shdr_status, shdr_add_status;
14859 union lpfc_sli4_cfg_shdr *shdr;
14861 /* sanity check on queue memory */
14865 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14868 length = (sizeof(struct lpfc_mbx_cq_create) -
14869 sizeof(struct lpfc_sli4_cfg_mhdr));
14870 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14871 LPFC_MBOX_OPCODE_CQ_CREATE,
14872 length, LPFC_SLI4_MBX_EMBED);
14873 cq_create = &mbox->u.mqe.un.cq_create;
14874 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
14875 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14877 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14878 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
14879 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14880 phba->sli4_hba.pc_sli4_params.cqv);
14881 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
14882 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
14883 (cq->page_size / SLI4_PAGE_SIZE));
14884 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14886 bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
14887 phba->sli4_hba.pc_sli4_params.cqav);
14889 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14892 switch (cq->entry_count) {
14895 if (phba->sli4_hba.pc_sli4_params.cqv ==
14896 LPFC_Q_CREATE_VERSION_2) {
14897 cq_create->u.request.context.lpfc_cq_context_count =
14899 bf_set(lpfc_cq_context_count,
14900 &cq_create->u.request.context,
14901 LPFC_CQ_CNT_WORD7);
14906 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14907 "0361 Unsupported CQ count: "
14908 "entry cnt %d sz %d pg cnt %d\n",
14909 cq->entry_count, cq->entry_size,
14911 if (cq->entry_count < 256) {
14915 /* otherwise default to smallest count (drop through) */
14917 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14921 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14925 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14929 list_for_each_entry(dmabuf, &cq->page_list, list) {
14930 memset(dmabuf->virt, 0, cq->page_size);
14931 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14932 putPaddrLow(dmabuf->phys);
14933 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14934 putPaddrHigh(dmabuf->phys);
14936 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14938 /* The IOCTL status is embedded in the mailbox subheader. */
14939 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14940 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14941 if (shdr_status || shdr_add_status || rc) {
14942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14943 "2501 CQ_CREATE mailbox failed with "
14944 "status x%x add_status x%x, mbx status x%x\n",
14945 shdr_status, shdr_add_status, rc);
14949 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14950 if (cq->queue_id == 0xFFFF) {
14954 /* link the cq onto the parent eq child list */
14955 list_add_tail(&cq->list, &eq->child_list);
14956 /* Set up completion queue's type and subtype */
14958 cq->subtype = subtype;
14959 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14960 cq->assoc_qid = eq->queue_id;
14961 cq->host_index = 0;
14963 cq->entry_repost = LPFC_CQ_REPOST;
14966 mempool_free(mbox, phba->mbox_mem_pool);
14971 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
14972 * @phba: HBA structure that indicates port to create a queue on.
14973 * @cqp: The queue structure array to use to create the completion queues.
14974 * @eqp: The event queue array to bind these completion queues to.
14976 * This function creates a set of completion queue, s to support MRQ
14977 * as detailed in @cqp, on a port,
14978 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
14980 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14981 * is used to get the entry count and entry size that are necessary to
14982 * determine the number of pages to allocate and use for this queue. The @eq
14983 * is used to indicate which event queue to bind this completion queue to. This
14984 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
14985 * completion queue. This function is asynchronous and will wait for the mailbox
14986 * command to finish before continuing.
14988 * On success this function will return a zero. If unable to allocate enough
14989 * memory this function will return -ENOMEM. If the queue create mailbox command
14990 * fails this function will return -ENXIO.
14993 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
14994 struct lpfc_queue **eqp, uint32_t type, uint32_t subtype)
14996 struct lpfc_queue *cq;
14997 struct lpfc_queue *eq;
14998 struct lpfc_mbx_cq_create_set *cq_set;
14999 struct lpfc_dmabuf *dmabuf;
15000 LPFC_MBOXQ_t *mbox;
15001 int rc, length, alloclen, status = 0;
15002 int cnt, idx, numcq, page_idx = 0;
15003 uint32_t shdr_status, shdr_add_status;
15004 union lpfc_sli4_cfg_shdr *shdr;
15005 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15007 /* sanity check on queue memory */
15008 numcq = phba->cfg_nvmet_mrq;
15009 if (!cqp || !eqp || !numcq)
15012 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15016 length = sizeof(struct lpfc_mbx_cq_create_set);
15017 length += ((numcq * cqp[0]->page_count) *
15018 sizeof(struct dma_address));
15019 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15020 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
15021 LPFC_SLI4_MBX_NEMBED);
15022 if (alloclen < length) {
15023 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15024 "3098 Allocated DMA memory size (%d) is "
15025 "less than the requested DMA memory size "
15026 "(%d)\n", alloclen, length);
15030 cq_set = mbox->sge_array->addr[0];
15031 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
15032 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
15034 for (idx = 0; idx < numcq; idx++) {
15041 if (!phba->sli4_hba.pc_sli4_params.supported)
15042 hw_page_size = cq->page_size;
15046 bf_set(lpfc_mbx_cq_create_set_page_size,
15047 &cq_set->u.request,
15048 (hw_page_size / SLI4_PAGE_SIZE));
15049 bf_set(lpfc_mbx_cq_create_set_num_pages,
15050 &cq_set->u.request, cq->page_count);
15051 bf_set(lpfc_mbx_cq_create_set_evt,
15052 &cq_set->u.request, 1);
15053 bf_set(lpfc_mbx_cq_create_set_valid,
15054 &cq_set->u.request, 1);
15055 bf_set(lpfc_mbx_cq_create_set_cqe_size,
15056 &cq_set->u.request, 0);
15057 bf_set(lpfc_mbx_cq_create_set_num_cq,
15058 &cq_set->u.request, numcq);
15059 bf_set(lpfc_mbx_cq_create_set_autovalid,
15060 &cq_set->u.request,
15061 phba->sli4_hba.pc_sli4_params.cqav);
15062 switch (cq->entry_count) {
15065 if (phba->sli4_hba.pc_sli4_params.cqv ==
15066 LPFC_Q_CREATE_VERSION_2) {
15067 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15068 &cq_set->u.request,
15070 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15071 &cq_set->u.request,
15072 LPFC_CQ_CNT_WORD7);
15077 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15078 "3118 Bad CQ count. (%d)\n",
15080 if (cq->entry_count < 256) {
15084 /* otherwise default to smallest (drop thru) */
15086 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15087 &cq_set->u.request, LPFC_CQ_CNT_256);
15090 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15091 &cq_set->u.request, LPFC_CQ_CNT_512);
15094 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15095 &cq_set->u.request, LPFC_CQ_CNT_1024);
15098 bf_set(lpfc_mbx_cq_create_set_eq_id0,
15099 &cq_set->u.request, eq->queue_id);
15102 bf_set(lpfc_mbx_cq_create_set_eq_id1,
15103 &cq_set->u.request, eq->queue_id);
15106 bf_set(lpfc_mbx_cq_create_set_eq_id2,
15107 &cq_set->u.request, eq->queue_id);
15110 bf_set(lpfc_mbx_cq_create_set_eq_id3,
15111 &cq_set->u.request, eq->queue_id);
15114 bf_set(lpfc_mbx_cq_create_set_eq_id4,
15115 &cq_set->u.request, eq->queue_id);
15118 bf_set(lpfc_mbx_cq_create_set_eq_id5,
15119 &cq_set->u.request, eq->queue_id);
15122 bf_set(lpfc_mbx_cq_create_set_eq_id6,
15123 &cq_set->u.request, eq->queue_id);
15126 bf_set(lpfc_mbx_cq_create_set_eq_id7,
15127 &cq_set->u.request, eq->queue_id);
15130 bf_set(lpfc_mbx_cq_create_set_eq_id8,
15131 &cq_set->u.request, eq->queue_id);
15134 bf_set(lpfc_mbx_cq_create_set_eq_id9,
15135 &cq_set->u.request, eq->queue_id);
15138 bf_set(lpfc_mbx_cq_create_set_eq_id10,
15139 &cq_set->u.request, eq->queue_id);
15142 bf_set(lpfc_mbx_cq_create_set_eq_id11,
15143 &cq_set->u.request, eq->queue_id);
15146 bf_set(lpfc_mbx_cq_create_set_eq_id12,
15147 &cq_set->u.request, eq->queue_id);
15150 bf_set(lpfc_mbx_cq_create_set_eq_id13,
15151 &cq_set->u.request, eq->queue_id);
15154 bf_set(lpfc_mbx_cq_create_set_eq_id14,
15155 &cq_set->u.request, eq->queue_id);
15158 bf_set(lpfc_mbx_cq_create_set_eq_id15,
15159 &cq_set->u.request, eq->queue_id);
15163 /* link the cq onto the parent eq child list */
15164 list_add_tail(&cq->list, &eq->child_list);
15165 /* Set up completion queue's type and subtype */
15167 cq->subtype = subtype;
15168 cq->assoc_qid = eq->queue_id;
15169 cq->host_index = 0;
15171 cq->entry_repost = LPFC_CQ_REPOST;
15175 list_for_each_entry(dmabuf, &cq->page_list, list) {
15176 memset(dmabuf->virt, 0, hw_page_size);
15177 cnt = page_idx + dmabuf->buffer_tag;
15178 cq_set->u.request.page[cnt].addr_lo =
15179 putPaddrLow(dmabuf->phys);
15180 cq_set->u.request.page[cnt].addr_hi =
15181 putPaddrHigh(dmabuf->phys);
15187 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15189 /* The IOCTL status is embedded in the mailbox subheader. */
15190 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15191 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15192 if (shdr_status || shdr_add_status || rc) {
15193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15194 "3119 CQ_CREATE_SET mailbox failed with "
15195 "status x%x add_status x%x, mbx status x%x\n",
15196 shdr_status, shdr_add_status, rc);
15200 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
15201 if (rc == 0xFFFF) {
15206 for (idx = 0; idx < numcq; idx++) {
15208 cq->queue_id = rc + idx;
15212 lpfc_sli4_mbox_cmd_free(phba, mbox);
15217 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
15218 * @phba: HBA structure that indicates port to create a queue on.
15219 * @mq: The queue structure to use to create the mailbox queue.
15220 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
15221 * @cq: The completion queue to associate with this cq.
15223 * This function provides failback (fb) functionality when the
15224 * mq_create_ext fails on older FW generations. It's purpose is identical
15225 * to mq_create_ext otherwise.
15227 * This routine cannot fail as all attributes were previously accessed and
15228 * initialized in mq_create_ext.
15231 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
15232 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
15234 struct lpfc_mbx_mq_create *mq_create;
15235 struct lpfc_dmabuf *dmabuf;
15238 length = (sizeof(struct lpfc_mbx_mq_create) -
15239 sizeof(struct lpfc_sli4_cfg_mhdr));
15240 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15241 LPFC_MBOX_OPCODE_MQ_CREATE,
15242 length, LPFC_SLI4_MBX_EMBED);
15243 mq_create = &mbox->u.mqe.un.mq_create;
15244 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
15246 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
15248 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
15249 switch (mq->entry_count) {
15251 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15252 LPFC_MQ_RING_SIZE_16);
15255 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15256 LPFC_MQ_RING_SIZE_32);
15259 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15260 LPFC_MQ_RING_SIZE_64);
15263 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15264 LPFC_MQ_RING_SIZE_128);
15267 list_for_each_entry(dmabuf, &mq->page_list, list) {
15268 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15269 putPaddrLow(dmabuf->phys);
15270 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15271 putPaddrHigh(dmabuf->phys);
15276 * lpfc_mq_create - Create a mailbox Queue on the HBA
15277 * @phba: HBA structure that indicates port to create a queue on.
15278 * @mq: The queue structure to use to create the mailbox queue.
15279 * @cq: The completion queue to associate with this cq.
15280 * @subtype: The queue's subtype.
15282 * This function creates a mailbox queue, as detailed in @mq, on a port,
15283 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
15285 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15286 * is used to get the entry count and entry size that are necessary to
15287 * determine the number of pages to allocate and use for this queue. This
15288 * function will send the MQ_CREATE mailbox command to the HBA to setup the
15289 * mailbox queue. This function is asynchronous and will wait for the mailbox
15290 * command to finish before continuing.
15292 * On success this function will return a zero. If unable to allocate enough
15293 * memory this function will return -ENOMEM. If the queue create mailbox command
15294 * fails this function will return -ENXIO.
15297 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
15298 struct lpfc_queue *cq, uint32_t subtype)
15300 struct lpfc_mbx_mq_create *mq_create;
15301 struct lpfc_mbx_mq_create_ext *mq_create_ext;
15302 struct lpfc_dmabuf *dmabuf;
15303 LPFC_MBOXQ_t *mbox;
15304 int rc, length, status = 0;
15305 uint32_t shdr_status, shdr_add_status;
15306 union lpfc_sli4_cfg_shdr *shdr;
15307 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15309 /* sanity check on queue memory */
15312 if (!phba->sli4_hba.pc_sli4_params.supported)
15313 hw_page_size = SLI4_PAGE_SIZE;
15315 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15318 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
15319 sizeof(struct lpfc_sli4_cfg_mhdr));
15320 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15321 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
15322 length, LPFC_SLI4_MBX_EMBED);
15324 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
15325 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
15326 bf_set(lpfc_mbx_mq_create_ext_num_pages,
15327 &mq_create_ext->u.request, mq->page_count);
15328 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
15329 &mq_create_ext->u.request, 1);
15330 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
15331 &mq_create_ext->u.request, 1);
15332 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
15333 &mq_create_ext->u.request, 1);
15334 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
15335 &mq_create_ext->u.request, 1);
15336 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
15337 &mq_create_ext->u.request, 1);
15338 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
15339 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15340 phba->sli4_hba.pc_sli4_params.mqv);
15341 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
15342 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
15345 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
15347 switch (mq->entry_count) {
15349 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15350 "0362 Unsupported MQ count. (%d)\n",
15352 if (mq->entry_count < 16) {
15356 /* otherwise default to smallest count (drop through) */
15358 bf_set(lpfc_mq_context_ring_size,
15359 &mq_create_ext->u.request.context,
15360 LPFC_MQ_RING_SIZE_16);
15363 bf_set(lpfc_mq_context_ring_size,
15364 &mq_create_ext->u.request.context,
15365 LPFC_MQ_RING_SIZE_32);
15368 bf_set(lpfc_mq_context_ring_size,
15369 &mq_create_ext->u.request.context,
15370 LPFC_MQ_RING_SIZE_64);
15373 bf_set(lpfc_mq_context_ring_size,
15374 &mq_create_ext->u.request.context,
15375 LPFC_MQ_RING_SIZE_128);
15378 list_for_each_entry(dmabuf, &mq->page_list, list) {
15379 memset(dmabuf->virt, 0, hw_page_size);
15380 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
15381 putPaddrLow(dmabuf->phys);
15382 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
15383 putPaddrHigh(dmabuf->phys);
15385 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15386 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15387 &mq_create_ext->u.response);
15388 if (rc != MBX_SUCCESS) {
15389 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15390 "2795 MQ_CREATE_EXT failed with "
15391 "status x%x. Failback to MQ_CREATE.\n",
15393 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
15394 mq_create = &mbox->u.mqe.un.mq_create;
15395 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15396 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
15397 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15398 &mq_create->u.response);
15401 /* The IOCTL status is embedded in the mailbox subheader. */
15402 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15403 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15404 if (shdr_status || shdr_add_status || rc) {
15405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15406 "2502 MQ_CREATE mailbox failed with "
15407 "status x%x add_status x%x, mbx status x%x\n",
15408 shdr_status, shdr_add_status, rc);
15412 if (mq->queue_id == 0xFFFF) {
15416 mq->type = LPFC_MQ;
15417 mq->assoc_qid = cq->queue_id;
15418 mq->subtype = subtype;
15419 mq->host_index = 0;
15421 mq->entry_repost = LPFC_MQ_REPOST;
15423 /* link the mq onto the parent cq child list */
15424 list_add_tail(&mq->list, &cq->child_list);
15426 mempool_free(mbox, phba->mbox_mem_pool);
15431 * lpfc_wq_create - Create a Work Queue on the HBA
15432 * @phba: HBA structure that indicates port to create a queue on.
15433 * @wq: The queue structure to use to create the work queue.
15434 * @cq: The completion queue to bind this work queue to.
15435 * @subtype: The subtype of the work queue indicating its functionality.
15437 * This function creates a work queue, as detailed in @wq, on a port, described
15438 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
15440 * The @phba struct is used to send mailbox command to HBA. The @wq struct
15441 * is used to get the entry count and entry size that are necessary to
15442 * determine the number of pages to allocate and use for this queue. The @cq
15443 * is used to indicate which completion queue to bind this work queue to. This
15444 * function will send the WQ_CREATE mailbox command to the HBA to setup the
15445 * work queue. This function is asynchronous and will wait for the mailbox
15446 * command to finish before continuing.
15448 * On success this function will return a zero. If unable to allocate enough
15449 * memory this function will return -ENOMEM. If the queue create mailbox command
15450 * fails this function will return -ENXIO.
15453 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
15454 struct lpfc_queue *cq, uint32_t subtype)
15456 struct lpfc_mbx_wq_create *wq_create;
15457 struct lpfc_dmabuf *dmabuf;
15458 LPFC_MBOXQ_t *mbox;
15459 int rc, length, status = 0;
15460 uint32_t shdr_status, shdr_add_status;
15461 union lpfc_sli4_cfg_shdr *shdr;
15462 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15463 struct dma_address *page;
15464 void __iomem *bar_memmap_p;
15465 uint32_t db_offset;
15466 uint16_t pci_barset;
15467 uint8_t dpp_barset;
15468 uint32_t dpp_offset;
15469 unsigned long pg_addr;
15470 uint8_t wq_create_version;
15472 /* sanity check on queue memory */
15475 if (!phba->sli4_hba.pc_sli4_params.supported)
15476 hw_page_size = wq->page_size;
15478 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15481 length = (sizeof(struct lpfc_mbx_wq_create) -
15482 sizeof(struct lpfc_sli4_cfg_mhdr));
15483 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15484 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
15485 length, LPFC_SLI4_MBX_EMBED);
15486 wq_create = &mbox->u.mqe.un.wq_create;
15487 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
15488 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
15490 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
15493 /* wqv is the earliest version supported, NOT the latest */
15494 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15495 phba->sli4_hba.pc_sli4_params.wqv);
15497 if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
15498 (wq->page_size > SLI4_PAGE_SIZE))
15499 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15501 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15504 if (phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT)
15505 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15507 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15509 switch (wq_create_version) {
15510 case LPFC_Q_CREATE_VERSION_1:
15511 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
15513 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15514 LPFC_Q_CREATE_VERSION_1);
15516 switch (wq->entry_size) {
15519 bf_set(lpfc_mbx_wq_create_wqe_size,
15520 &wq_create->u.request_1,
15521 LPFC_WQ_WQE_SIZE_64);
15524 bf_set(lpfc_mbx_wq_create_wqe_size,
15525 &wq_create->u.request_1,
15526 LPFC_WQ_WQE_SIZE_128);
15529 /* Request DPP by default */
15530 bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
15531 bf_set(lpfc_mbx_wq_create_page_size,
15532 &wq_create->u.request_1,
15533 (wq->page_size / SLI4_PAGE_SIZE));
15534 page = wq_create->u.request_1.page;
15537 page = wq_create->u.request.page;
15541 list_for_each_entry(dmabuf, &wq->page_list, list) {
15542 memset(dmabuf->virt, 0, hw_page_size);
15543 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
15544 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
15547 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15548 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
15550 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15551 /* The IOCTL status is embedded in the mailbox subheader. */
15552 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15553 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15554 if (shdr_status || shdr_add_status || rc) {
15555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15556 "2503 WQ_CREATE mailbox failed with "
15557 "status x%x add_status x%x, mbx status x%x\n",
15558 shdr_status, shdr_add_status, rc);
15563 if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
15564 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
15565 &wq_create->u.response);
15567 wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
15568 &wq_create->u.response_1);
15570 if (wq->queue_id == 0xFFFF) {
15575 wq->db_format = LPFC_DB_LIST_FORMAT;
15576 if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
15577 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15578 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
15579 &wq_create->u.response);
15580 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
15581 (wq->db_format != LPFC_DB_RING_FORMAT)) {
15582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15583 "3265 WQ[%d] doorbell format "
15584 "not supported: x%x\n",
15585 wq->queue_id, wq->db_format);
15589 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
15590 &wq_create->u.response);
15591 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15593 if (!bar_memmap_p) {
15594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15595 "3263 WQ[%d] failed to memmap "
15596 "pci barset:x%x\n",
15597 wq->queue_id, pci_barset);
15601 db_offset = wq_create->u.response.doorbell_offset;
15602 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
15603 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
15604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15605 "3252 WQ[%d] doorbell offset "
15606 "not supported: x%x\n",
15607 wq->queue_id, db_offset);
15611 wq->db_regaddr = bar_memmap_p + db_offset;
15612 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15613 "3264 WQ[%d]: barset:x%x, offset:x%x, "
15614 "format:x%x\n", wq->queue_id,
15615 pci_barset, db_offset, wq->db_format);
15617 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15619 /* Check if DPP was honored by the firmware */
15620 wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
15621 &wq_create->u.response_1);
15622 if (wq->dpp_enable) {
15623 pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
15624 &wq_create->u.response_1);
15625 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15627 if (!bar_memmap_p) {
15628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15629 "3267 WQ[%d] failed to memmap "
15630 "pci barset:x%x\n",
15631 wq->queue_id, pci_barset);
15635 db_offset = wq_create->u.response_1.doorbell_offset;
15636 wq->db_regaddr = bar_memmap_p + db_offset;
15637 wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
15638 &wq_create->u.response_1);
15639 dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
15640 &wq_create->u.response_1);
15641 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15643 if (!bar_memmap_p) {
15644 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15645 "3268 WQ[%d] failed to memmap "
15646 "pci barset:x%x\n",
15647 wq->queue_id, dpp_barset);
15651 dpp_offset = wq_create->u.response_1.dpp_offset;
15652 wq->dpp_regaddr = bar_memmap_p + dpp_offset;
15653 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15654 "3271 WQ[%d]: barset:x%x, offset:x%x, "
15655 "dpp_id:x%x dpp_barset:x%x "
15656 "dpp_offset:x%x\n",
15657 wq->queue_id, pci_barset, db_offset,
15658 wq->dpp_id, dpp_barset, dpp_offset);
15660 /* Enable combined writes for DPP aperture */
15661 pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
15663 rc = set_memory_wc(pg_addr, 1);
15665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15666 "3272 Cannot setup Combined "
15667 "Write on WQ[%d] - disable DPP\n",
15669 phba->cfg_enable_dpp = 0;
15672 phba->cfg_enable_dpp = 0;
15675 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15677 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
15678 if (wq->pring == NULL) {
15682 wq->type = LPFC_WQ;
15683 wq->assoc_qid = cq->queue_id;
15684 wq->subtype = subtype;
15685 wq->host_index = 0;
15687 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
15689 /* link the wq onto the parent cq child list */
15690 list_add_tail(&wq->list, &cq->child_list);
15692 mempool_free(mbox, phba->mbox_mem_pool);
15697 * lpfc_rq_create - Create a Receive Queue on the HBA
15698 * @phba: HBA structure that indicates port to create a queue on.
15699 * @hrq: The queue structure to use to create the header receive queue.
15700 * @drq: The queue structure to use to create the data receive queue.
15701 * @cq: The completion queue to bind this work queue to.
15703 * This function creates a receive buffer queue pair , as detailed in @hrq and
15704 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15707 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15708 * struct is used to get the entry count that is necessary to determine the
15709 * number of pages to use for this queue. The @cq is used to indicate which
15710 * completion queue to bind received buffers that are posted to these queues to.
15711 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15712 * receive queue pair. This function is asynchronous and will wait for the
15713 * mailbox command to finish before continuing.
15715 * On success this function will return a zero. If unable to allocate enough
15716 * memory this function will return -ENOMEM. If the queue create mailbox command
15717 * fails this function will return -ENXIO.
15720 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15721 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
15723 struct lpfc_mbx_rq_create *rq_create;
15724 struct lpfc_dmabuf *dmabuf;
15725 LPFC_MBOXQ_t *mbox;
15726 int rc, length, status = 0;
15727 uint32_t shdr_status, shdr_add_status;
15728 union lpfc_sli4_cfg_shdr *shdr;
15729 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15730 void __iomem *bar_memmap_p;
15731 uint32_t db_offset;
15732 uint16_t pci_barset;
15734 /* sanity check on queue memory */
15735 if (!hrq || !drq || !cq)
15737 if (!phba->sli4_hba.pc_sli4_params.supported)
15738 hw_page_size = SLI4_PAGE_SIZE;
15740 if (hrq->entry_count != drq->entry_count)
15742 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15745 length = (sizeof(struct lpfc_mbx_rq_create) -
15746 sizeof(struct lpfc_sli4_cfg_mhdr));
15747 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15748 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15749 length, LPFC_SLI4_MBX_EMBED);
15750 rq_create = &mbox->u.mqe.un.rq_create;
15751 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15752 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15753 phba->sli4_hba.pc_sli4_params.rqv);
15754 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15755 bf_set(lpfc_rq_context_rqe_count_1,
15756 &rq_create->u.request.context,
15758 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
15759 bf_set(lpfc_rq_context_rqe_size,
15760 &rq_create->u.request.context,
15762 bf_set(lpfc_rq_context_page_size,
15763 &rq_create->u.request.context,
15764 LPFC_RQ_PAGE_SIZE_4096);
15766 switch (hrq->entry_count) {
15768 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15769 "2535 Unsupported RQ count. (%d)\n",
15771 if (hrq->entry_count < 512) {
15775 /* otherwise default to smallest count (drop through) */
15777 bf_set(lpfc_rq_context_rqe_count,
15778 &rq_create->u.request.context,
15779 LPFC_RQ_RING_SIZE_512);
15782 bf_set(lpfc_rq_context_rqe_count,
15783 &rq_create->u.request.context,
15784 LPFC_RQ_RING_SIZE_1024);
15787 bf_set(lpfc_rq_context_rqe_count,
15788 &rq_create->u.request.context,
15789 LPFC_RQ_RING_SIZE_2048);
15792 bf_set(lpfc_rq_context_rqe_count,
15793 &rq_create->u.request.context,
15794 LPFC_RQ_RING_SIZE_4096);
15797 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15798 LPFC_HDR_BUF_SIZE);
15800 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15802 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15804 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15805 memset(dmabuf->virt, 0, hw_page_size);
15806 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15807 putPaddrLow(dmabuf->phys);
15808 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15809 putPaddrHigh(dmabuf->phys);
15811 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15812 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15814 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15815 /* The IOCTL status is embedded in the mailbox subheader. */
15816 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15817 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15818 if (shdr_status || shdr_add_status || rc) {
15819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15820 "2504 RQ_CREATE mailbox failed with "
15821 "status x%x add_status x%x, mbx status x%x\n",
15822 shdr_status, shdr_add_status, rc);
15826 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15827 if (hrq->queue_id == 0xFFFF) {
15832 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15833 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15834 &rq_create->u.response);
15835 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15836 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15838 "3262 RQ [%d] doorbell format not "
15839 "supported: x%x\n", hrq->queue_id,
15845 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15846 &rq_create->u.response);
15847 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15848 if (!bar_memmap_p) {
15849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15850 "3269 RQ[%d] failed to memmap pci "
15851 "barset:x%x\n", hrq->queue_id,
15857 db_offset = rq_create->u.response.doorbell_offset;
15858 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15859 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15861 "3270 RQ[%d] doorbell offset not "
15862 "supported: x%x\n", hrq->queue_id,
15867 hrq->db_regaddr = bar_memmap_p + db_offset;
15868 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15869 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15870 "format:x%x\n", hrq->queue_id, pci_barset,
15871 db_offset, hrq->db_format);
15873 hrq->db_format = LPFC_DB_RING_FORMAT;
15874 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15876 hrq->type = LPFC_HRQ;
15877 hrq->assoc_qid = cq->queue_id;
15878 hrq->subtype = subtype;
15879 hrq->host_index = 0;
15880 hrq->hba_index = 0;
15881 hrq->entry_repost = LPFC_RQ_REPOST;
15883 /* now create the data queue */
15884 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15885 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15886 length, LPFC_SLI4_MBX_EMBED);
15887 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15888 phba->sli4_hba.pc_sli4_params.rqv);
15889 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15890 bf_set(lpfc_rq_context_rqe_count_1,
15891 &rq_create->u.request.context, hrq->entry_count);
15892 if (subtype == LPFC_NVMET)
15893 rq_create->u.request.context.buffer_size =
15894 LPFC_NVMET_DATA_BUF_SIZE;
15896 rq_create->u.request.context.buffer_size =
15897 LPFC_DATA_BUF_SIZE;
15898 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
15900 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
15901 (PAGE_SIZE/SLI4_PAGE_SIZE));
15903 switch (drq->entry_count) {
15905 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15906 "2536 Unsupported RQ count. (%d)\n",
15908 if (drq->entry_count < 512) {
15912 /* otherwise default to smallest count (drop through) */
15914 bf_set(lpfc_rq_context_rqe_count,
15915 &rq_create->u.request.context,
15916 LPFC_RQ_RING_SIZE_512);
15919 bf_set(lpfc_rq_context_rqe_count,
15920 &rq_create->u.request.context,
15921 LPFC_RQ_RING_SIZE_1024);
15924 bf_set(lpfc_rq_context_rqe_count,
15925 &rq_create->u.request.context,
15926 LPFC_RQ_RING_SIZE_2048);
15929 bf_set(lpfc_rq_context_rqe_count,
15930 &rq_create->u.request.context,
15931 LPFC_RQ_RING_SIZE_4096);
15934 if (subtype == LPFC_NVMET)
15935 bf_set(lpfc_rq_context_buf_size,
15936 &rq_create->u.request.context,
15937 LPFC_NVMET_DATA_BUF_SIZE);
15939 bf_set(lpfc_rq_context_buf_size,
15940 &rq_create->u.request.context,
15941 LPFC_DATA_BUF_SIZE);
15943 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15945 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15947 list_for_each_entry(dmabuf, &drq->page_list, list) {
15948 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15949 putPaddrLow(dmabuf->phys);
15950 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15951 putPaddrHigh(dmabuf->phys);
15953 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15954 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15955 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15956 /* The IOCTL status is embedded in the mailbox subheader. */
15957 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15958 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15959 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15960 if (shdr_status || shdr_add_status || rc) {
15964 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15965 if (drq->queue_id == 0xFFFF) {
15969 drq->type = LPFC_DRQ;
15970 drq->assoc_qid = cq->queue_id;
15971 drq->subtype = subtype;
15972 drq->host_index = 0;
15973 drq->hba_index = 0;
15974 drq->entry_repost = LPFC_RQ_REPOST;
15976 /* link the header and data RQs onto the parent cq child list */
15977 list_add_tail(&hrq->list, &cq->child_list);
15978 list_add_tail(&drq->list, &cq->child_list);
15981 mempool_free(mbox, phba->mbox_mem_pool);
15986 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
15987 * @phba: HBA structure that indicates port to create a queue on.
15988 * @hrqp: The queue structure array to use to create the header receive queues.
15989 * @drqp: The queue structure array to use to create the data receive queues.
15990 * @cqp: The completion queue array to bind these receive queues to.
15992 * This function creates a receive buffer queue pair , as detailed in @hrq and
15993 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15996 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15997 * struct is used to get the entry count that is necessary to determine the
15998 * number of pages to use for this queue. The @cq is used to indicate which
15999 * completion queue to bind received buffers that are posted to these queues to.
16000 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
16001 * receive queue pair. This function is asynchronous and will wait for the
16002 * mailbox command to finish before continuing.
16004 * On success this function will return a zero. If unable to allocate enough
16005 * memory this function will return -ENOMEM. If the queue create mailbox command
16006 * fails this function will return -ENXIO.
16009 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
16010 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
16013 struct lpfc_queue *hrq, *drq, *cq;
16014 struct lpfc_mbx_rq_create_v2 *rq_create;
16015 struct lpfc_dmabuf *dmabuf;
16016 LPFC_MBOXQ_t *mbox;
16017 int rc, length, alloclen, status = 0;
16018 int cnt, idx, numrq, page_idx = 0;
16019 uint32_t shdr_status, shdr_add_status;
16020 union lpfc_sli4_cfg_shdr *shdr;
16021 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16023 numrq = phba->cfg_nvmet_mrq;
16024 /* sanity check on array memory */
16025 if (!hrqp || !drqp || !cqp || !numrq)
16027 if (!phba->sli4_hba.pc_sli4_params.supported)
16028 hw_page_size = SLI4_PAGE_SIZE;
16030 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16034 length = sizeof(struct lpfc_mbx_rq_create_v2);
16035 length += ((2 * numrq * hrqp[0]->page_count) *
16036 sizeof(struct dma_address));
16038 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16039 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
16040 LPFC_SLI4_MBX_NEMBED);
16041 if (alloclen < length) {
16042 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16043 "3099 Allocated DMA memory size (%d) is "
16044 "less than the requested DMA memory size "
16045 "(%d)\n", alloclen, length);
16052 rq_create = mbox->sge_array->addr[0];
16053 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
16055 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
16058 for (idx = 0; idx < numrq; idx++) {
16063 /* sanity check on queue memory */
16064 if (!hrq || !drq || !cq) {
16069 if (hrq->entry_count != drq->entry_count) {
16075 bf_set(lpfc_mbx_rq_create_num_pages,
16076 &rq_create->u.request,
16078 bf_set(lpfc_mbx_rq_create_rq_cnt,
16079 &rq_create->u.request, (numrq * 2));
16080 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
16082 bf_set(lpfc_rq_context_base_cq,
16083 &rq_create->u.request.context,
16085 bf_set(lpfc_rq_context_data_size,
16086 &rq_create->u.request.context,
16087 LPFC_NVMET_DATA_BUF_SIZE);
16088 bf_set(lpfc_rq_context_hdr_size,
16089 &rq_create->u.request.context,
16090 LPFC_HDR_BUF_SIZE);
16091 bf_set(lpfc_rq_context_rqe_count_1,
16092 &rq_create->u.request.context,
16094 bf_set(lpfc_rq_context_rqe_size,
16095 &rq_create->u.request.context,
16097 bf_set(lpfc_rq_context_page_size,
16098 &rq_create->u.request.context,
16099 (PAGE_SIZE/SLI4_PAGE_SIZE));
16102 list_for_each_entry(dmabuf, &hrq->page_list, list) {
16103 memset(dmabuf->virt, 0, hw_page_size);
16104 cnt = page_idx + dmabuf->buffer_tag;
16105 rq_create->u.request.page[cnt].addr_lo =
16106 putPaddrLow(dmabuf->phys);
16107 rq_create->u.request.page[cnt].addr_hi =
16108 putPaddrHigh(dmabuf->phys);
16114 list_for_each_entry(dmabuf, &drq->page_list, list) {
16115 memset(dmabuf->virt, 0, hw_page_size);
16116 cnt = page_idx + dmabuf->buffer_tag;
16117 rq_create->u.request.page[cnt].addr_lo =
16118 putPaddrLow(dmabuf->phys);
16119 rq_create->u.request.page[cnt].addr_hi =
16120 putPaddrHigh(dmabuf->phys);
16125 hrq->db_format = LPFC_DB_RING_FORMAT;
16126 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16127 hrq->type = LPFC_HRQ;
16128 hrq->assoc_qid = cq->queue_id;
16129 hrq->subtype = subtype;
16130 hrq->host_index = 0;
16131 hrq->hba_index = 0;
16132 hrq->entry_repost = LPFC_RQ_REPOST;
16134 drq->db_format = LPFC_DB_RING_FORMAT;
16135 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16136 drq->type = LPFC_DRQ;
16137 drq->assoc_qid = cq->queue_id;
16138 drq->subtype = subtype;
16139 drq->host_index = 0;
16140 drq->hba_index = 0;
16141 drq->entry_repost = LPFC_RQ_REPOST;
16143 list_add_tail(&hrq->list, &cq->child_list);
16144 list_add_tail(&drq->list, &cq->child_list);
16147 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16148 /* The IOCTL status is embedded in the mailbox subheader. */
16149 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16150 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16151 if (shdr_status || shdr_add_status || rc) {
16152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16153 "3120 RQ_CREATE mailbox failed with "
16154 "status x%x add_status x%x, mbx status x%x\n",
16155 shdr_status, shdr_add_status, rc);
16159 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16160 if (rc == 0xFFFF) {
16165 /* Initialize all RQs with associated queue id */
16166 for (idx = 0; idx < numrq; idx++) {
16168 hrq->queue_id = rc + (2 * idx);
16170 drq->queue_id = rc + (2 * idx) + 1;
16174 lpfc_sli4_mbox_cmd_free(phba, mbox);
16179 * lpfc_eq_destroy - Destroy an event Queue on the HBA
16180 * @eq: The queue structure associated with the queue to destroy.
16182 * This function destroys a queue, as detailed in @eq by sending an mailbox
16183 * command, specific to the type of queue, to the HBA.
16185 * The @eq struct is used to get the queue ID of the queue to destroy.
16187 * On success this function will return a zero. If the queue destroy mailbox
16188 * command fails this function will return -ENXIO.
16191 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
16193 LPFC_MBOXQ_t *mbox;
16194 int rc, length, status = 0;
16195 uint32_t shdr_status, shdr_add_status;
16196 union lpfc_sli4_cfg_shdr *shdr;
16198 /* sanity check on queue memory */
16201 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
16204 length = (sizeof(struct lpfc_mbx_eq_destroy) -
16205 sizeof(struct lpfc_sli4_cfg_mhdr));
16206 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16207 LPFC_MBOX_OPCODE_EQ_DESTROY,
16208 length, LPFC_SLI4_MBX_EMBED);
16209 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
16211 mbox->vport = eq->phba->pport;
16212 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16214 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
16215 /* The IOCTL status is embedded in the mailbox subheader. */
16216 shdr = (union lpfc_sli4_cfg_shdr *)
16217 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
16218 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16219 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16220 if (shdr_status || shdr_add_status || rc) {
16221 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16222 "2505 EQ_DESTROY mailbox failed with "
16223 "status x%x add_status x%x, mbx status x%x\n",
16224 shdr_status, shdr_add_status, rc);
16228 /* Remove eq from any list */
16229 list_del_init(&eq->list);
16230 mempool_free(mbox, eq->phba->mbox_mem_pool);
16235 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
16236 * @cq: The queue structure associated with the queue to destroy.
16238 * This function destroys a queue, as detailed in @cq by sending an mailbox
16239 * command, specific to the type of queue, to the HBA.
16241 * The @cq struct is used to get the queue ID of the queue to destroy.
16243 * On success this function will return a zero. If the queue destroy mailbox
16244 * command fails this function will return -ENXIO.
16247 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
16249 LPFC_MBOXQ_t *mbox;
16250 int rc, length, status = 0;
16251 uint32_t shdr_status, shdr_add_status;
16252 union lpfc_sli4_cfg_shdr *shdr;
16254 /* sanity check on queue memory */
16257 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
16260 length = (sizeof(struct lpfc_mbx_cq_destroy) -
16261 sizeof(struct lpfc_sli4_cfg_mhdr));
16262 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16263 LPFC_MBOX_OPCODE_CQ_DESTROY,
16264 length, LPFC_SLI4_MBX_EMBED);
16265 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
16267 mbox->vport = cq->phba->pport;
16268 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16269 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
16270 /* The IOCTL status is embedded in the mailbox subheader. */
16271 shdr = (union lpfc_sli4_cfg_shdr *)
16272 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
16273 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16274 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16275 if (shdr_status || shdr_add_status || rc) {
16276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16277 "2506 CQ_DESTROY mailbox failed with "
16278 "status x%x add_status x%x, mbx status x%x\n",
16279 shdr_status, shdr_add_status, rc);
16282 /* Remove cq from any list */
16283 list_del_init(&cq->list);
16284 mempool_free(mbox, cq->phba->mbox_mem_pool);
16289 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
16290 * @qm: The queue structure associated with the queue to destroy.
16292 * This function destroys a queue, as detailed in @mq by sending an mailbox
16293 * command, specific to the type of queue, to the HBA.
16295 * The @mq struct is used to get the queue ID of the queue to destroy.
16297 * On success this function will return a zero. If the queue destroy mailbox
16298 * command fails this function will return -ENXIO.
16301 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
16303 LPFC_MBOXQ_t *mbox;
16304 int rc, length, status = 0;
16305 uint32_t shdr_status, shdr_add_status;
16306 union lpfc_sli4_cfg_shdr *shdr;
16308 /* sanity check on queue memory */
16311 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
16314 length = (sizeof(struct lpfc_mbx_mq_destroy) -
16315 sizeof(struct lpfc_sli4_cfg_mhdr));
16316 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16317 LPFC_MBOX_OPCODE_MQ_DESTROY,
16318 length, LPFC_SLI4_MBX_EMBED);
16319 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
16321 mbox->vport = mq->phba->pport;
16322 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16323 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
16324 /* The IOCTL status is embedded in the mailbox subheader. */
16325 shdr = (union lpfc_sli4_cfg_shdr *)
16326 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
16327 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16328 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16329 if (shdr_status || shdr_add_status || rc) {
16330 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16331 "2507 MQ_DESTROY mailbox failed with "
16332 "status x%x add_status x%x, mbx status x%x\n",
16333 shdr_status, shdr_add_status, rc);
16336 /* Remove mq from any list */
16337 list_del_init(&mq->list);
16338 mempool_free(mbox, mq->phba->mbox_mem_pool);
16343 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
16344 * @wq: The queue structure associated with the queue to destroy.
16346 * This function destroys a queue, as detailed in @wq by sending an mailbox
16347 * command, specific to the type of queue, to the HBA.
16349 * The @wq struct is used to get the queue ID of the queue to destroy.
16351 * On success this function will return a zero. If the queue destroy mailbox
16352 * command fails this function will return -ENXIO.
16355 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
16357 LPFC_MBOXQ_t *mbox;
16358 int rc, length, status = 0;
16359 uint32_t shdr_status, shdr_add_status;
16360 union lpfc_sli4_cfg_shdr *shdr;
16362 /* sanity check on queue memory */
16365 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
16368 length = (sizeof(struct lpfc_mbx_wq_destroy) -
16369 sizeof(struct lpfc_sli4_cfg_mhdr));
16370 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16371 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
16372 length, LPFC_SLI4_MBX_EMBED);
16373 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
16375 mbox->vport = wq->phba->pport;
16376 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16377 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
16378 shdr = (union lpfc_sli4_cfg_shdr *)
16379 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
16380 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16381 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16382 if (shdr_status || shdr_add_status || rc) {
16383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16384 "2508 WQ_DESTROY mailbox failed with "
16385 "status x%x add_status x%x, mbx status x%x\n",
16386 shdr_status, shdr_add_status, rc);
16389 /* Remove wq from any list */
16390 list_del_init(&wq->list);
16393 mempool_free(mbox, wq->phba->mbox_mem_pool);
16398 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
16399 * @rq: The queue structure associated with the queue to destroy.
16401 * This function destroys a queue, as detailed in @rq by sending an mailbox
16402 * command, specific to the type of queue, to the HBA.
16404 * The @rq struct is used to get the queue ID of the queue to destroy.
16406 * On success this function will return a zero. If the queue destroy mailbox
16407 * command fails this function will return -ENXIO.
16410 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
16411 struct lpfc_queue *drq)
16413 LPFC_MBOXQ_t *mbox;
16414 int rc, length, status = 0;
16415 uint32_t shdr_status, shdr_add_status;
16416 union lpfc_sli4_cfg_shdr *shdr;
16418 /* sanity check on queue memory */
16421 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
16424 length = (sizeof(struct lpfc_mbx_rq_destroy) -
16425 sizeof(struct lpfc_sli4_cfg_mhdr));
16426 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16427 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
16428 length, LPFC_SLI4_MBX_EMBED);
16429 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16431 mbox->vport = hrq->phba->pport;
16432 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16433 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
16434 /* The IOCTL status is embedded in the mailbox subheader. */
16435 shdr = (union lpfc_sli4_cfg_shdr *)
16436 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16437 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16438 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16439 if (shdr_status || shdr_add_status || rc) {
16440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16441 "2509 RQ_DESTROY mailbox failed with "
16442 "status x%x add_status x%x, mbx status x%x\n",
16443 shdr_status, shdr_add_status, rc);
16444 if (rc != MBX_TIMEOUT)
16445 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16448 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16450 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
16451 shdr = (union lpfc_sli4_cfg_shdr *)
16452 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16453 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16454 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16455 if (shdr_status || shdr_add_status || rc) {
16456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16457 "2510 RQ_DESTROY mailbox failed with "
16458 "status x%x add_status x%x, mbx status x%x\n",
16459 shdr_status, shdr_add_status, rc);
16462 list_del_init(&hrq->list);
16463 list_del_init(&drq->list);
16464 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16469 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
16470 * @phba: The virtual port for which this call being executed.
16471 * @pdma_phys_addr0: Physical address of the 1st SGL page.
16472 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
16473 * @xritag: the xritag that ties this io to the SGL pages.
16475 * This routine will post the sgl pages for the IO that has the xritag
16476 * that is in the iocbq structure. The xritag is assigned during iocbq
16477 * creation and persists for as long as the driver is loaded.
16478 * if the caller has fewer than 256 scatter gather segments to map then
16479 * pdma_phys_addr1 should be 0.
16480 * If the caller needs to map more than 256 scatter gather segment then
16481 * pdma_phys_addr1 should be a valid physical address.
16482 * physical address for SGLs must be 64 byte aligned.
16483 * If you are going to map 2 SGL's then the first one must have 256 entries
16484 * the second sgl can have between 1 and 256 entries.
16488 * -ENXIO, -ENOMEM - Failure
16491 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
16492 dma_addr_t pdma_phys_addr0,
16493 dma_addr_t pdma_phys_addr1,
16496 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
16497 LPFC_MBOXQ_t *mbox;
16499 uint32_t shdr_status, shdr_add_status;
16501 union lpfc_sli4_cfg_shdr *shdr;
16503 if (xritag == NO_XRI) {
16504 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16505 "0364 Invalid param:\n");
16509 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16513 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16514 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16515 sizeof(struct lpfc_mbx_post_sgl_pages) -
16516 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16518 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
16519 &mbox->u.mqe.un.post_sgl_pages;
16520 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
16521 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
16523 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
16524 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
16525 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
16526 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
16528 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
16529 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
16530 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
16531 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
16532 if (!phba->sli4_hba.intr_enable)
16533 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16535 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16536 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16538 /* The IOCTL status is embedded in the mailbox subheader. */
16539 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
16540 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16541 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16542 if (rc != MBX_TIMEOUT)
16543 mempool_free(mbox, phba->mbox_mem_pool);
16544 if (shdr_status || shdr_add_status || rc) {
16545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16546 "2511 POST_SGL mailbox failed with "
16547 "status x%x add_status x%x, mbx status x%x\n",
16548 shdr_status, shdr_add_status, rc);
16554 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
16555 * @phba: pointer to lpfc hba data structure.
16557 * This routine is invoked to post rpi header templates to the
16558 * HBA consistent with the SLI-4 interface spec. This routine
16559 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
16560 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
16563 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
16564 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
16567 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
16572 * Fetch the next logical xri. Because this index is logical,
16573 * the driver starts at 0 each time.
16575 spin_lock_irq(&phba->hbalock);
16576 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
16577 phba->sli4_hba.max_cfg_param.max_xri, 0);
16578 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
16579 spin_unlock_irq(&phba->hbalock);
16582 set_bit(xri, phba->sli4_hba.xri_bmask);
16583 phba->sli4_hba.max_cfg_param.xri_used++;
16585 spin_unlock_irq(&phba->hbalock);
16590 * lpfc_sli4_free_xri - Release an xri for reuse.
16591 * @phba: pointer to lpfc hba data structure.
16593 * This routine is invoked to release an xri to the pool of
16594 * available rpis maintained by the driver.
16597 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16599 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
16600 phba->sli4_hba.max_cfg_param.xri_used--;
16605 * lpfc_sli4_free_xri - Release an xri for reuse.
16606 * @phba: pointer to lpfc hba data structure.
16608 * This routine is invoked to release an xri to the pool of
16609 * available rpis maintained by the driver.
16612 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16614 spin_lock_irq(&phba->hbalock);
16615 __lpfc_sli4_free_xri(phba, xri);
16616 spin_unlock_irq(&phba->hbalock);
16620 * lpfc_sli4_next_xritag - Get an xritag for the io
16621 * @phba: Pointer to HBA context object.
16623 * This function gets an xritag for the iocb. If there is no unused xritag
16624 * it will return 0xffff.
16625 * The function returns the allocated xritag if successful, else returns zero.
16626 * Zero is not a valid xritag.
16627 * The caller is not required to hold any lock.
16630 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
16632 uint16_t xri_index;
16634 xri_index = lpfc_sli4_alloc_xri(phba);
16635 if (xri_index == NO_XRI)
16636 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
16637 "2004 Failed to allocate XRI.last XRITAG is %d"
16638 " Max XRI is %d, Used XRI is %d\n",
16640 phba->sli4_hba.max_cfg_param.max_xri,
16641 phba->sli4_hba.max_cfg_param.xri_used);
16646 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
16647 * @phba: pointer to lpfc hba data structure.
16648 * @post_sgl_list: pointer to els sgl entry list.
16649 * @count: number of els sgl entries on the list.
16651 * This routine is invoked to post a block of driver's sgl pages to the
16652 * HBA using non-embedded mailbox command. No Lock is held. This routine
16653 * is only called when the driver is loading and after all IO has been
16657 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
16658 struct list_head *post_sgl_list,
16661 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
16662 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16663 struct sgl_page_pairs *sgl_pg_pairs;
16665 LPFC_MBOXQ_t *mbox;
16666 uint32_t reqlen, alloclen, pg_pairs;
16668 uint16_t xritag_start = 0;
16670 uint32_t shdr_status, shdr_add_status;
16671 union lpfc_sli4_cfg_shdr *shdr;
16673 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
16674 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16675 if (reqlen > SLI4_PAGE_SIZE) {
16676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16677 "2559 Block sgl registration required DMA "
16678 "size (%d) great than a page\n", reqlen);
16682 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16686 /* Allocate DMA memory and set up the non-embedded mailbox command */
16687 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16688 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16689 LPFC_SLI4_MBX_NEMBED);
16691 if (alloclen < reqlen) {
16692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16693 "0285 Allocated DMA memory size (%d) is "
16694 "less than the requested DMA memory "
16695 "size (%d)\n", alloclen, reqlen);
16696 lpfc_sli4_mbox_cmd_free(phba, mbox);
16699 /* Set up the SGL pages in the non-embedded DMA pages */
16700 viraddr = mbox->sge_array->addr[0];
16701 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16702 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16705 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
16706 /* Set up the sge entry */
16707 sgl_pg_pairs->sgl_pg0_addr_lo =
16708 cpu_to_le32(putPaddrLow(sglq_entry->phys));
16709 sgl_pg_pairs->sgl_pg0_addr_hi =
16710 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
16711 sgl_pg_pairs->sgl_pg1_addr_lo =
16712 cpu_to_le32(putPaddrLow(0));
16713 sgl_pg_pairs->sgl_pg1_addr_hi =
16714 cpu_to_le32(putPaddrHigh(0));
16716 /* Keep the first xritag on the list */
16718 xritag_start = sglq_entry->sli4_xritag;
16723 /* Complete initialization and perform endian conversion. */
16724 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16725 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
16726 sgl->word0 = cpu_to_le32(sgl->word0);
16728 if (!phba->sli4_hba.intr_enable)
16729 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16731 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16732 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16734 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16735 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16736 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16737 if (rc != MBX_TIMEOUT)
16738 lpfc_sli4_mbox_cmd_free(phba, mbox);
16739 if (shdr_status || shdr_add_status || rc) {
16740 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16741 "2513 POST_SGL_BLOCK mailbox command failed "
16742 "status x%x add_status x%x mbx status x%x\n",
16743 shdr_status, shdr_add_status, rc);
16750 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
16751 * @phba: pointer to lpfc hba data structure.
16752 * @sblist: pointer to scsi buffer list.
16753 * @count: number of scsi buffers on the list.
16755 * This routine is invoked to post a block of @count scsi sgl pages from a
16756 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
16761 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
16762 struct list_head *sblist,
16765 struct lpfc_scsi_buf *psb;
16766 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16767 struct sgl_page_pairs *sgl_pg_pairs;
16769 LPFC_MBOXQ_t *mbox;
16770 uint32_t reqlen, alloclen, pg_pairs;
16772 uint16_t xritag_start = 0;
16774 uint32_t shdr_status, shdr_add_status;
16775 dma_addr_t pdma_phys_bpl1;
16776 union lpfc_sli4_cfg_shdr *shdr;
16778 /* Calculate the requested length of the dma memory */
16779 reqlen = count * sizeof(struct sgl_page_pairs) +
16780 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16781 if (reqlen > SLI4_PAGE_SIZE) {
16782 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
16783 "0217 Block sgl registration required DMA "
16784 "size (%d) great than a page\n", reqlen);
16787 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16790 "0283 Failed to allocate mbox cmd memory\n");
16794 /* Allocate DMA memory and set up the non-embedded mailbox command */
16795 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16796 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16797 LPFC_SLI4_MBX_NEMBED);
16799 if (alloclen < reqlen) {
16800 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16801 "2561 Allocated DMA memory size (%d) is "
16802 "less than the requested DMA memory "
16803 "size (%d)\n", alloclen, reqlen);
16804 lpfc_sli4_mbox_cmd_free(phba, mbox);
16808 /* Get the first SGE entry from the non-embedded DMA memory */
16809 viraddr = mbox->sge_array->addr[0];
16811 /* Set up the SGL pages in the non-embedded DMA pages */
16812 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16813 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16816 list_for_each_entry(psb, sblist, list) {
16817 /* Set up the sge entry */
16818 sgl_pg_pairs->sgl_pg0_addr_lo =
16819 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
16820 sgl_pg_pairs->sgl_pg0_addr_hi =
16821 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
16822 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
16823 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
16825 pdma_phys_bpl1 = 0;
16826 sgl_pg_pairs->sgl_pg1_addr_lo =
16827 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
16828 sgl_pg_pairs->sgl_pg1_addr_hi =
16829 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16830 /* Keep the first xritag on the list */
16832 xritag_start = psb->cur_iocbq.sli4_xritag;
16836 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16837 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16838 /* Perform endian conversion if necessary */
16839 sgl->word0 = cpu_to_le32(sgl->word0);
16841 if (!phba->sli4_hba.intr_enable)
16842 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16844 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16845 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16847 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16848 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16849 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16850 if (rc != MBX_TIMEOUT)
16851 lpfc_sli4_mbox_cmd_free(phba, mbox);
16852 if (shdr_status || shdr_add_status || rc) {
16853 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16854 "2564 POST_SGL_BLOCK mailbox command failed "
16855 "status x%x add_status x%x mbx status x%x\n",
16856 shdr_status, shdr_add_status, rc);
16863 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
16864 * @phba: pointer to lpfc_hba struct that the frame was received on
16865 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16867 * This function checks the fields in the @fc_hdr to see if the FC frame is a
16868 * valid type of frame that the LPFC driver will handle. This function will
16869 * return a zero if the frame is a valid frame or a non zero value when the
16870 * frame does not pass the check.
16873 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
16875 /* make rctl_names static to save stack space */
16876 struct fc_vft_header *fc_vft_hdr;
16877 uint32_t *header = (uint32_t *) fc_hdr;
16879 #define FC_RCTL_MDS_DIAGS 0xF4
16881 switch (fc_hdr->fh_r_ctl) {
16882 case FC_RCTL_DD_UNCAT: /* uncategorized information */
16883 case FC_RCTL_DD_SOL_DATA: /* solicited data */
16884 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
16885 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
16886 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
16887 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
16888 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
16889 case FC_RCTL_DD_CMD_STATUS: /* command status */
16890 case FC_RCTL_ELS_REQ: /* extended link services request */
16891 case FC_RCTL_ELS_REP: /* extended link services reply */
16892 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
16893 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
16894 case FC_RCTL_BA_NOP: /* basic link service NOP */
16895 case FC_RCTL_BA_ABTS: /* basic link service abort */
16896 case FC_RCTL_BA_RMC: /* remove connection */
16897 case FC_RCTL_BA_ACC: /* basic accept */
16898 case FC_RCTL_BA_RJT: /* basic reject */
16899 case FC_RCTL_BA_PRMT:
16900 case FC_RCTL_ACK_1: /* acknowledge_1 */
16901 case FC_RCTL_ACK_0: /* acknowledge_0 */
16902 case FC_RCTL_P_RJT: /* port reject */
16903 case FC_RCTL_F_RJT: /* fabric reject */
16904 case FC_RCTL_P_BSY: /* port busy */
16905 case FC_RCTL_F_BSY: /* fabric busy to data frame */
16906 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
16907 case FC_RCTL_LCR: /* link credit reset */
16908 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
16909 case FC_RCTL_END: /* end */
16911 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
16912 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16913 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
16914 return lpfc_fc_frame_check(phba, fc_hdr);
16919 #define FC_TYPE_VENDOR_UNIQUE 0xFF
16921 switch (fc_hdr->fh_type) {
16927 case FC_TYPE_VENDOR_UNIQUE:
16935 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
16936 "2538 Received frame rctl:x%x, type:x%x, "
16937 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
16938 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
16939 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
16940 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
16941 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
16942 be32_to_cpu(header[6]));
16945 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
16946 "2539 Dropped frame rctl:x%x type:x%x\n",
16947 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
16952 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
16953 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16955 * This function processes the FC header to retrieve the VFI from the VF
16956 * header, if one exists. This function will return the VFI if one exists
16957 * or 0 if no VSAN Header exists.
16960 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
16962 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16964 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
16966 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
16970 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
16971 * @phba: Pointer to the HBA structure to search for the vport on
16972 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16973 * @fcfi: The FC Fabric ID that the frame came from
16975 * This function searches the @phba for a vport that matches the content of the
16976 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
16977 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
16978 * returns the matching vport pointer or NULL if unable to match frame to a
16981 static struct lpfc_vport *
16982 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
16983 uint16_t fcfi, uint32_t did)
16985 struct lpfc_vport **vports;
16986 struct lpfc_vport *vport = NULL;
16989 if (did == Fabric_DID)
16990 return phba->pport;
16991 if ((phba->pport->fc_flag & FC_PT2PT) &&
16992 !(phba->link_state == LPFC_HBA_READY))
16993 return phba->pport;
16995 vports = lpfc_create_vport_work_array(phba);
16996 if (vports != NULL) {
16997 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
16998 if (phba->fcf.fcfi == fcfi &&
16999 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
17000 vports[i]->fc_myDID == did) {
17006 lpfc_destroy_vport_work_array(phba, vports);
17011 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
17012 * @vport: The vport to work on.
17014 * This function updates the receive sequence time stamp for this vport. The
17015 * receive sequence time stamp indicates the time that the last frame of the
17016 * the sequence that has been idle for the longest amount of time was received.
17017 * the driver uses this time stamp to indicate if any received sequences have
17021 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
17023 struct lpfc_dmabuf *h_buf;
17024 struct hbq_dmabuf *dmabuf = NULL;
17026 /* get the oldest sequence on the rcv list */
17027 h_buf = list_get_first(&vport->rcv_buffer_list,
17028 struct lpfc_dmabuf, list);
17031 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17032 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
17036 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
17037 * @vport: The vport that the received sequences were sent to.
17039 * This function cleans up all outstanding received sequences. This is called
17040 * by the driver when a link event or user action invalidates all the received
17044 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
17046 struct lpfc_dmabuf *h_buf, *hnext;
17047 struct lpfc_dmabuf *d_buf, *dnext;
17048 struct hbq_dmabuf *dmabuf = NULL;
17050 /* start with the oldest sequence on the rcv list */
17051 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17052 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17053 list_del_init(&dmabuf->hbuf.list);
17054 list_for_each_entry_safe(d_buf, dnext,
17055 &dmabuf->dbuf.list, list) {
17056 list_del_init(&d_buf->list);
17057 lpfc_in_buf_free(vport->phba, d_buf);
17059 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17064 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
17065 * @vport: The vport that the received sequences were sent to.
17067 * This function determines whether any received sequences have timed out by
17068 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
17069 * indicates that there is at least one timed out sequence this routine will
17070 * go through the received sequences one at a time from most inactive to most
17071 * active to determine which ones need to be cleaned up. Once it has determined
17072 * that a sequence needs to be cleaned up it will simply free up the resources
17073 * without sending an abort.
17076 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
17078 struct lpfc_dmabuf *h_buf, *hnext;
17079 struct lpfc_dmabuf *d_buf, *dnext;
17080 struct hbq_dmabuf *dmabuf = NULL;
17081 unsigned long timeout;
17082 int abort_count = 0;
17084 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17085 vport->rcv_buffer_time_stamp);
17086 if (list_empty(&vport->rcv_buffer_list) ||
17087 time_before(jiffies, timeout))
17089 /* start with the oldest sequence on the rcv list */
17090 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17091 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17092 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17093 dmabuf->time_stamp);
17094 if (time_before(jiffies, timeout))
17097 list_del_init(&dmabuf->hbuf.list);
17098 list_for_each_entry_safe(d_buf, dnext,
17099 &dmabuf->dbuf.list, list) {
17100 list_del_init(&d_buf->list);
17101 lpfc_in_buf_free(vport->phba, d_buf);
17103 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17106 lpfc_update_rcv_time_stamp(vport);
17110 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
17111 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
17113 * This function searches through the existing incomplete sequences that have
17114 * been sent to this @vport. If the frame matches one of the incomplete
17115 * sequences then the dbuf in the @dmabuf is added to the list of frames that
17116 * make up that sequence. If no sequence is found that matches this frame then
17117 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
17118 * This function returns a pointer to the first dmabuf in the sequence list that
17119 * the frame was linked to.
17121 static struct hbq_dmabuf *
17122 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17124 struct fc_frame_header *new_hdr;
17125 struct fc_frame_header *temp_hdr;
17126 struct lpfc_dmabuf *d_buf;
17127 struct lpfc_dmabuf *h_buf;
17128 struct hbq_dmabuf *seq_dmabuf = NULL;
17129 struct hbq_dmabuf *temp_dmabuf = NULL;
17132 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17133 dmabuf->time_stamp = jiffies;
17134 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17136 /* Use the hdr_buf to find the sequence that this frame belongs to */
17137 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17138 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17139 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17140 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17141 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17143 /* found a pending sequence that matches this frame */
17144 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17149 * This indicates first frame received for this sequence.
17150 * Queue the buffer on the vport's rcv_buffer_list.
17152 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17153 lpfc_update_rcv_time_stamp(vport);
17156 temp_hdr = seq_dmabuf->hbuf.virt;
17157 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
17158 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17159 list_del_init(&seq_dmabuf->hbuf.list);
17160 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17161 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17162 lpfc_update_rcv_time_stamp(vport);
17165 /* move this sequence to the tail to indicate a young sequence */
17166 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
17167 seq_dmabuf->time_stamp = jiffies;
17168 lpfc_update_rcv_time_stamp(vport);
17169 if (list_empty(&seq_dmabuf->dbuf.list)) {
17170 temp_hdr = dmabuf->hbuf.virt;
17171 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17174 /* find the correct place in the sequence to insert this frame */
17175 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
17177 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17178 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
17180 * If the frame's sequence count is greater than the frame on
17181 * the list then insert the frame right after this frame
17183 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
17184 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17185 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
17190 if (&d_buf->list == &seq_dmabuf->dbuf.list)
17192 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
17201 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
17202 * @vport: pointer to a vitural port
17203 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17205 * This function tries to abort from the partially assembed sequence, described
17206 * by the information from basic abbort @dmabuf. It checks to see whether such
17207 * partially assembled sequence held by the driver. If so, it shall free up all
17208 * the frames from the partially assembled sequence.
17211 * true -- if there is matching partially assembled sequence present and all
17212 * the frames freed with the sequence;
17213 * false -- if there is no matching partially assembled sequence present so
17214 * nothing got aborted in the lower layer driver
17217 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
17218 struct hbq_dmabuf *dmabuf)
17220 struct fc_frame_header *new_hdr;
17221 struct fc_frame_header *temp_hdr;
17222 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
17223 struct hbq_dmabuf *seq_dmabuf = NULL;
17225 /* Use the hdr_buf to find the sequence that matches this frame */
17226 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17227 INIT_LIST_HEAD(&dmabuf->hbuf.list);
17228 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17229 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17230 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17231 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17232 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17233 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17235 /* found a pending sequence that matches this frame */
17236 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17240 /* Free up all the frames from the partially assembled sequence */
17242 list_for_each_entry_safe(d_buf, n_buf,
17243 &seq_dmabuf->dbuf.list, list) {
17244 list_del_init(&d_buf->list);
17245 lpfc_in_buf_free(vport->phba, d_buf);
17253 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
17254 * @vport: pointer to a vitural port
17255 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17257 * This function tries to abort from the assembed sequence from upper level
17258 * protocol, described by the information from basic abbort @dmabuf. It
17259 * checks to see whether such pending context exists at upper level protocol.
17260 * If so, it shall clean up the pending context.
17263 * true -- if there is matching pending context of the sequence cleaned
17265 * false -- if there is no matching pending context of the sequence present
17269 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17271 struct lpfc_hba *phba = vport->phba;
17274 /* Accepting abort at ulp with SLI4 only */
17275 if (phba->sli_rev < LPFC_SLI_REV4)
17278 /* Register all caring upper level protocols to attend abort */
17279 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
17287 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
17288 * @phba: Pointer to HBA context object.
17289 * @cmd_iocbq: pointer to the command iocbq structure.
17290 * @rsp_iocbq: pointer to the response iocbq structure.
17292 * This function handles the sequence abort response iocb command complete
17293 * event. It properly releases the memory allocated to the sequence abort
17297 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
17298 struct lpfc_iocbq *cmd_iocbq,
17299 struct lpfc_iocbq *rsp_iocbq)
17301 struct lpfc_nodelist *ndlp;
17304 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
17305 lpfc_nlp_put(ndlp);
17306 lpfc_nlp_not_used(ndlp);
17307 lpfc_sli_release_iocbq(phba, cmd_iocbq);
17310 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
17311 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
17312 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17313 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
17314 rsp_iocbq->iocb.ulpStatus,
17315 rsp_iocbq->iocb.un.ulpWord[4]);
17319 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
17320 * @phba: Pointer to HBA context object.
17321 * @xri: xri id in transaction.
17323 * This function validates the xri maps to the known range of XRIs allocated an
17324 * used by the driver.
17327 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
17332 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
17333 if (xri == phba->sli4_hba.xri_ids[i])
17340 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
17341 * @phba: Pointer to HBA context object.
17342 * @fc_hdr: pointer to a FC frame header.
17344 * This function sends a basic response to a previous unsol sequence abort
17345 * event after aborting the sequence handling.
17348 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
17349 struct fc_frame_header *fc_hdr, bool aborted)
17351 struct lpfc_hba *phba = vport->phba;
17352 struct lpfc_iocbq *ctiocb = NULL;
17353 struct lpfc_nodelist *ndlp;
17354 uint16_t oxid, rxid, xri, lxri;
17355 uint32_t sid, fctl;
17359 if (!lpfc_is_link_up(phba))
17362 sid = sli4_sid_from_fc_hdr(fc_hdr);
17363 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
17364 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
17366 ndlp = lpfc_findnode_did(vport, sid);
17368 ndlp = lpfc_nlp_init(vport, sid);
17370 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17371 "1268 Failed to allocate ndlp for "
17372 "oxid:x%x SID:x%x\n", oxid, sid);
17375 /* Put ndlp onto pport node list */
17376 lpfc_enqueue_node(vport, ndlp);
17377 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
17378 /* re-setup ndlp without removing from node list */
17379 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
17381 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17382 "3275 Failed to active ndlp found "
17383 "for oxid:x%x SID:x%x\n", oxid, sid);
17388 /* Allocate buffer for rsp iocb */
17389 ctiocb = lpfc_sli_get_iocbq(phba);
17393 /* Extract the F_CTL field from FC_HDR */
17394 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
17396 icmd = &ctiocb->iocb;
17397 icmd->un.xseq64.bdl.bdeSize = 0;
17398 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
17399 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
17400 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
17401 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
17403 /* Fill in the rest of iocb fields */
17404 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
17405 icmd->ulpBdeCount = 0;
17407 icmd->ulpClass = CLASS3;
17408 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
17409 ctiocb->context1 = lpfc_nlp_get(ndlp);
17411 ctiocb->iocb_cmpl = NULL;
17412 ctiocb->vport = phba->pport;
17413 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
17414 ctiocb->sli4_lxritag = NO_XRI;
17415 ctiocb->sli4_xritag = NO_XRI;
17417 if (fctl & FC_FC_EX_CTX)
17418 /* Exchange responder sent the abort so we
17424 lxri = lpfc_sli4_xri_inrange(phba, xri);
17425 if (lxri != NO_XRI)
17426 lpfc_set_rrq_active(phba, ndlp, lxri,
17427 (xri == oxid) ? rxid : oxid, 0);
17428 /* For BA_ABTS from exchange responder, if the logical xri with
17429 * the oxid maps to the FCP XRI range, the port no longer has
17430 * that exchange context, send a BLS_RJT. Override the IOCB for
17433 if ((fctl & FC_FC_EX_CTX) &&
17434 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
17435 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17436 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17437 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17438 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17441 /* If BA_ABTS failed to abort a partially assembled receive sequence,
17442 * the driver no longer has that exchange, send a BLS_RJT. Override
17443 * the IOCB for a BA_RJT.
17445 if (aborted == false) {
17446 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17447 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17448 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17449 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17452 if (fctl & FC_FC_EX_CTX) {
17453 /* ABTS sent by responder to CT exchange, construction
17454 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
17455 * field and RX_ID from ABTS for RX_ID field.
17457 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
17459 /* ABTS sent by initiator to CT exchange, construction
17460 * of BA_ACC will need to allocate a new XRI as for the
17463 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
17465 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
17466 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
17468 /* Xmit CT abts response on exchange <xid> */
17469 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
17470 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
17471 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
17473 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
17474 if (rc == IOCB_ERROR) {
17475 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
17476 "2925 Failed to issue CT ABTS RSP x%x on "
17477 "xri x%x, Data x%x\n",
17478 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
17480 lpfc_nlp_put(ndlp);
17481 ctiocb->context1 = NULL;
17482 lpfc_sli_release_iocbq(phba, ctiocb);
17487 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
17488 * @vport: Pointer to the vport on which this sequence was received
17489 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17491 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
17492 * receive sequence is only partially assembed by the driver, it shall abort
17493 * the partially assembled frames for the sequence. Otherwise, if the
17494 * unsolicited receive sequence has been completely assembled and passed to
17495 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
17496 * unsolicited sequence has been aborted. After that, it will issue a basic
17497 * accept to accept the abort.
17500 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
17501 struct hbq_dmabuf *dmabuf)
17503 struct lpfc_hba *phba = vport->phba;
17504 struct fc_frame_header fc_hdr;
17508 /* Make a copy of fc_hdr before the dmabuf being released */
17509 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
17510 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
17512 if (fctl & FC_FC_EX_CTX) {
17513 /* ABTS by responder to exchange, no cleanup needed */
17516 /* ABTS by initiator to exchange, need to do cleanup */
17517 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
17518 if (aborted == false)
17519 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
17521 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17523 if (phba->nvmet_support) {
17524 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
17528 /* Respond with BA_ACC or BA_RJT accordingly */
17529 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
17533 * lpfc_seq_complete - Indicates if a sequence is complete
17534 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17536 * This function checks the sequence, starting with the frame described by
17537 * @dmabuf, to see if all the frames associated with this sequence are present.
17538 * the frames associated with this sequence are linked to the @dmabuf using the
17539 * dbuf list. This function looks for two major things. 1) That the first frame
17540 * has a sequence count of zero. 2) There is a frame with last frame of sequence
17541 * set. 3) That there are no holes in the sequence count. The function will
17542 * return 1 when the sequence is complete, otherwise it will return 0.
17545 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
17547 struct fc_frame_header *hdr;
17548 struct lpfc_dmabuf *d_buf;
17549 struct hbq_dmabuf *seq_dmabuf;
17553 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17554 /* make sure first fame of sequence has a sequence count of zero */
17555 if (hdr->fh_seq_cnt != seq_count)
17557 fctl = (hdr->fh_f_ctl[0] << 16 |
17558 hdr->fh_f_ctl[1] << 8 |
17560 /* If last frame of sequence we can return success. */
17561 if (fctl & FC_FC_END_SEQ)
17563 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
17564 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17565 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17566 /* If there is a hole in the sequence count then fail. */
17567 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
17569 fctl = (hdr->fh_f_ctl[0] << 16 |
17570 hdr->fh_f_ctl[1] << 8 |
17572 /* If last frame of sequence we can return success. */
17573 if (fctl & FC_FC_END_SEQ)
17580 * lpfc_prep_seq - Prep sequence for ULP processing
17581 * @vport: Pointer to the vport on which this sequence was received
17582 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17584 * This function takes a sequence, described by a list of frames, and creates
17585 * a list of iocbq structures to describe the sequence. This iocbq list will be
17586 * used to issue to the generic unsolicited sequence handler. This routine
17587 * returns a pointer to the first iocbq in the list. If the function is unable
17588 * to allocate an iocbq then it throw out the received frames that were not
17589 * able to be described and return a pointer to the first iocbq. If unable to
17590 * allocate any iocbqs (including the first) this function will return NULL.
17592 static struct lpfc_iocbq *
17593 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
17595 struct hbq_dmabuf *hbq_buf;
17596 struct lpfc_dmabuf *d_buf, *n_buf;
17597 struct lpfc_iocbq *first_iocbq, *iocbq;
17598 struct fc_frame_header *fc_hdr;
17600 uint32_t len, tot_len;
17601 struct ulp_bde64 *pbde;
17603 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17604 /* remove from receive buffer list */
17605 list_del_init(&seq_dmabuf->hbuf.list);
17606 lpfc_update_rcv_time_stamp(vport);
17607 /* get the Remote Port's SID */
17608 sid = sli4_sid_from_fc_hdr(fc_hdr);
17610 /* Get an iocbq struct to fill in. */
17611 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
17613 /* Initialize the first IOCB. */
17614 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
17615 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
17616 first_iocbq->vport = vport;
17618 /* Check FC Header to see what TYPE of frame we are rcv'ing */
17619 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
17620 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
17621 first_iocbq->iocb.un.rcvels.parmRo =
17622 sli4_did_from_fc_hdr(fc_hdr);
17623 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
17625 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
17626 first_iocbq->iocb.ulpContext = NO_XRI;
17627 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
17628 be16_to_cpu(fc_hdr->fh_ox_id);
17629 /* iocbq is prepped for internal consumption. Physical vpi. */
17630 first_iocbq->iocb.unsli3.rcvsli3.vpi =
17631 vport->phba->vpi_ids[vport->vpi];
17632 /* put the first buffer into the first IOCBq */
17633 tot_len = bf_get(lpfc_rcqe_length,
17634 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
17636 first_iocbq->context2 = &seq_dmabuf->dbuf;
17637 first_iocbq->context3 = NULL;
17638 first_iocbq->iocb.ulpBdeCount = 1;
17639 if (tot_len > LPFC_DATA_BUF_SIZE)
17640 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17641 LPFC_DATA_BUF_SIZE;
17643 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
17645 first_iocbq->iocb.un.rcvels.remoteID = sid;
17647 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17649 iocbq = first_iocbq;
17651 * Each IOCBq can have two Buffers assigned, so go through the list
17652 * of buffers for this sequence and save two buffers in each IOCBq
17654 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
17656 lpfc_in_buf_free(vport->phba, d_buf);
17659 if (!iocbq->context3) {
17660 iocbq->context3 = d_buf;
17661 iocbq->iocb.ulpBdeCount++;
17662 /* We need to get the size out of the right CQE */
17663 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17664 len = bf_get(lpfc_rcqe_length,
17665 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17666 pbde = (struct ulp_bde64 *)
17667 &iocbq->iocb.unsli3.sli3Words[4];
17668 if (len > LPFC_DATA_BUF_SIZE)
17669 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
17671 pbde->tus.f.bdeSize = len;
17673 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
17676 iocbq = lpfc_sli_get_iocbq(vport->phba);
17679 first_iocbq->iocb.ulpStatus =
17680 IOSTAT_FCP_RSP_ERROR;
17681 first_iocbq->iocb.un.ulpWord[4] =
17682 IOERR_NO_RESOURCES;
17684 lpfc_in_buf_free(vport->phba, d_buf);
17687 /* We need to get the size out of the right CQE */
17688 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17689 len = bf_get(lpfc_rcqe_length,
17690 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17691 iocbq->context2 = d_buf;
17692 iocbq->context3 = NULL;
17693 iocbq->iocb.ulpBdeCount = 1;
17694 if (len > LPFC_DATA_BUF_SIZE)
17695 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17696 LPFC_DATA_BUF_SIZE;
17698 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
17701 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17703 iocbq->iocb.un.rcvels.remoteID = sid;
17704 list_add_tail(&iocbq->list, &first_iocbq->list);
17707 return first_iocbq;
17711 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
17712 struct hbq_dmabuf *seq_dmabuf)
17714 struct fc_frame_header *fc_hdr;
17715 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
17716 struct lpfc_hba *phba = vport->phba;
17718 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17719 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
17721 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17722 "2707 Ring %d handler: Failed to allocate "
17723 "iocb Rctl x%x Type x%x received\n",
17725 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17728 if (!lpfc_complete_unsol_iocb(phba,
17729 phba->sli4_hba.els_wq->pring,
17730 iocbq, fc_hdr->fh_r_ctl,
17732 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17733 "2540 Ring %d handler: unexpected Rctl "
17734 "x%x Type x%x received\n",
17736 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17738 /* Free iocb created in lpfc_prep_seq */
17739 list_for_each_entry_safe(curr_iocb, next_iocb,
17740 &iocbq->list, list) {
17741 list_del_init(&curr_iocb->list);
17742 lpfc_sli_release_iocbq(phba, curr_iocb);
17744 lpfc_sli_release_iocbq(phba, iocbq);
17748 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
17749 struct lpfc_iocbq *rspiocb)
17751 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
17753 if (pcmd && pcmd->virt)
17754 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17756 lpfc_sli_release_iocbq(phba, cmdiocb);
17760 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
17761 struct hbq_dmabuf *dmabuf)
17763 struct fc_frame_header *fc_hdr;
17764 struct lpfc_hba *phba = vport->phba;
17765 struct lpfc_iocbq *iocbq = NULL;
17766 union lpfc_wqe *wqe;
17767 struct lpfc_dmabuf *pcmd = NULL;
17768 uint32_t frame_len;
17771 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17772 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
17774 /* Send the received frame back */
17775 iocbq = lpfc_sli_get_iocbq(phba);
17779 /* Allocate buffer for command payload */
17780 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
17782 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
17784 if (!pcmd || !pcmd->virt)
17787 INIT_LIST_HEAD(&pcmd->list);
17789 /* copyin the payload */
17790 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
17792 /* fill in BDE's for command */
17793 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
17794 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
17795 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
17796 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
17798 iocbq->context2 = pcmd;
17799 iocbq->vport = vport;
17800 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
17801 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
17804 * Setup rest of the iocb as though it were a WQE
17805 * Build the SEND_FRAME WQE
17807 wqe = (union lpfc_wqe *)&iocbq->iocb;
17809 wqe->send_frame.frame_len = frame_len;
17810 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
17811 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
17812 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
17813 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
17814 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
17815 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
17817 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
17818 iocbq->iocb.ulpLe = 1;
17819 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
17820 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
17821 if (rc == IOCB_ERROR)
17824 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17828 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
17829 "2023 Unable to process MDS loopback frame\n");
17830 if (pcmd && pcmd->virt)
17831 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17834 lpfc_sli_release_iocbq(phba, iocbq);
17835 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17839 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
17840 * @phba: Pointer to HBA context object.
17842 * This function is called with no lock held. This function processes all
17843 * the received buffers and gives it to upper layers when a received buffer
17844 * indicates that it is the final frame in the sequence. The interrupt
17845 * service routine processes received buffers at interrupt contexts.
17846 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
17847 * appropriate receive function when the final frame in a sequence is received.
17850 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
17851 struct hbq_dmabuf *dmabuf)
17853 struct hbq_dmabuf *seq_dmabuf;
17854 struct fc_frame_header *fc_hdr;
17855 struct lpfc_vport *vport;
17859 /* Process each received buffer */
17860 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17862 /* check to see if this a valid type of frame */
17863 if (lpfc_fc_frame_check(phba, fc_hdr)) {
17864 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17868 if ((bf_get(lpfc_cqe_code,
17869 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
17870 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
17871 &dmabuf->cq_event.cqe.rcqe_cmpl);
17873 fcfi = bf_get(lpfc_rcqe_fcf_id,
17874 &dmabuf->cq_event.cqe.rcqe_cmpl);
17876 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
17877 vport = phba->pport;
17878 /* Handle MDS Loopback frames */
17879 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
17883 /* d_id this frame is directed to */
17884 did = sli4_did_from_fc_hdr(fc_hdr);
17886 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
17888 /* throw out the frame */
17889 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17893 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
17894 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
17895 (did != Fabric_DID)) {
17897 * Throw out the frame if we are not pt2pt.
17898 * The pt2pt protocol allows for discovery frames
17899 * to be received without a registered VPI.
17901 if (!(vport->fc_flag & FC_PT2PT) ||
17902 (phba->link_state == LPFC_HBA_READY)) {
17903 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17908 /* Handle the basic abort sequence (BA_ABTS) event */
17909 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
17910 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
17914 /* Link this frame */
17915 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
17917 /* unable to add frame to vport - throw it out */
17918 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17921 /* If not last frame in sequence continue processing frames. */
17922 if (!lpfc_seq_complete(seq_dmabuf))
17925 /* Send the complete sequence to the upper layer protocol */
17926 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
17930 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
17931 * @phba: pointer to lpfc hba data structure.
17933 * This routine is invoked to post rpi header templates to the
17934 * HBA consistent with the SLI-4 interface spec. This routine
17935 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17936 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17938 * This routine does not require any locks. It's usage is expected
17939 * to be driver load or reset recovery when the driver is
17944 * -EIO - The mailbox failed to complete successfully.
17945 * When this error occurs, the driver is not guaranteed
17946 * to have any rpi regions posted to the device and
17947 * must either attempt to repost the regions or take a
17951 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
17953 struct lpfc_rpi_hdr *rpi_page;
17957 /* SLI4 ports that support extents do not require RPI headers. */
17958 if (!phba->sli4_hba.rpi_hdrs_in_use)
17960 if (phba->sli4_hba.extents_in_use)
17963 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
17965 * Assign the rpi headers a physical rpi only if the driver
17966 * has not initialized those resources. A port reset only
17967 * needs the headers posted.
17969 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
17971 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17973 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
17974 if (rc != MBX_SUCCESS) {
17975 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17976 "2008 Error %d posting all rpi "
17984 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
17985 LPFC_RPI_RSRC_RDY);
17990 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
17991 * @phba: pointer to lpfc hba data structure.
17992 * @rpi_page: pointer to the rpi memory region.
17994 * This routine is invoked to post a single rpi header to the
17995 * HBA consistent with the SLI-4 interface spec. This memory region
17996 * maps up to 64 rpi context regions.
18000 * -ENOMEM - No available memory
18001 * -EIO - The mailbox failed to complete successfully.
18004 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
18006 LPFC_MBOXQ_t *mboxq;
18007 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
18009 uint32_t shdr_status, shdr_add_status;
18010 union lpfc_sli4_cfg_shdr *shdr;
18012 /* SLI4 ports that support extents do not require RPI headers. */
18013 if (!phba->sli4_hba.rpi_hdrs_in_use)
18015 if (phba->sli4_hba.extents_in_use)
18018 /* The port is notified of the header region via a mailbox command. */
18019 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18021 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18022 "2001 Unable to allocate memory for issuing "
18023 "SLI_CONFIG_SPECIAL mailbox command\n");
18027 /* Post all rpi memory regions to the port. */
18028 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
18029 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18030 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
18031 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
18032 sizeof(struct lpfc_sli4_cfg_mhdr),
18033 LPFC_SLI4_MBX_EMBED);
18036 /* Post the physical rpi to the port for this rpi header. */
18037 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
18038 rpi_page->start_rpi);
18039 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
18040 hdr_tmpl, rpi_page->page_count);
18042 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
18043 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
18044 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18045 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
18046 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18047 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18048 if (rc != MBX_TIMEOUT)
18049 mempool_free(mboxq, phba->mbox_mem_pool);
18050 if (shdr_status || shdr_add_status || rc) {
18051 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18052 "2514 POST_RPI_HDR mailbox failed with "
18053 "status x%x add_status x%x, mbx status x%x\n",
18054 shdr_status, shdr_add_status, rc);
18058 * The next_rpi stores the next logical module-64 rpi value used
18059 * to post physical rpis in subsequent rpi postings.
18061 spin_lock_irq(&phba->hbalock);
18062 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
18063 spin_unlock_irq(&phba->hbalock);
18069 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
18070 * @phba: pointer to lpfc hba data structure.
18072 * This routine is invoked to post rpi header templates to the
18073 * HBA consistent with the SLI-4 interface spec. This routine
18074 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18075 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18078 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
18079 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
18082 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
18085 uint16_t max_rpi, rpi_limit;
18086 uint16_t rpi_remaining, lrpi = 0;
18087 struct lpfc_rpi_hdr *rpi_hdr;
18088 unsigned long iflag;
18091 * Fetch the next logical rpi. Because this index is logical,
18092 * the driver starts at 0 each time.
18094 spin_lock_irqsave(&phba->hbalock, iflag);
18095 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
18096 rpi_limit = phba->sli4_hba.next_rpi;
18098 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
18099 if (rpi >= rpi_limit)
18100 rpi = LPFC_RPI_ALLOC_ERROR;
18102 set_bit(rpi, phba->sli4_hba.rpi_bmask);
18103 phba->sli4_hba.max_cfg_param.rpi_used++;
18104 phba->sli4_hba.rpi_count++;
18106 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
18107 "0001 rpi:%x max:%x lim:%x\n",
18108 (int) rpi, max_rpi, rpi_limit);
18111 * Don't try to allocate more rpi header regions if the device limit
18112 * has been exhausted.
18114 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
18115 (phba->sli4_hba.rpi_count >= max_rpi)) {
18116 spin_unlock_irqrestore(&phba->hbalock, iflag);
18121 * RPI header postings are not required for SLI4 ports capable of
18124 if (!phba->sli4_hba.rpi_hdrs_in_use) {
18125 spin_unlock_irqrestore(&phba->hbalock, iflag);
18130 * If the driver is running low on rpi resources, allocate another
18131 * page now. Note that the next_rpi value is used because
18132 * it represents how many are actually in use whereas max_rpi notes
18133 * how many are supported max by the device.
18135 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
18136 spin_unlock_irqrestore(&phba->hbalock, iflag);
18137 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
18138 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
18140 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18141 "2002 Error Could not grow rpi "
18144 lrpi = rpi_hdr->start_rpi;
18145 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18146 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
18154 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18155 * @phba: pointer to lpfc hba data structure.
18157 * This routine is invoked to release an rpi to the pool of
18158 * available rpis maintained by the driver.
18161 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18163 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
18164 phba->sli4_hba.rpi_count--;
18165 phba->sli4_hba.max_cfg_param.rpi_used--;
18170 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18171 * @phba: pointer to lpfc hba data structure.
18173 * This routine is invoked to release an rpi to the pool of
18174 * available rpis maintained by the driver.
18177 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18179 spin_lock_irq(&phba->hbalock);
18180 __lpfc_sli4_free_rpi(phba, rpi);
18181 spin_unlock_irq(&phba->hbalock);
18185 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
18186 * @phba: pointer to lpfc hba data structure.
18188 * This routine is invoked to remove the memory region that
18189 * provided rpi via a bitmask.
18192 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
18194 kfree(phba->sli4_hba.rpi_bmask);
18195 kfree(phba->sli4_hba.rpi_ids);
18196 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
18200 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
18201 * @phba: pointer to lpfc hba data structure.
18203 * This routine is invoked to remove the memory region that
18204 * provided rpi via a bitmask.
18207 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
18208 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
18210 LPFC_MBOXQ_t *mboxq;
18211 struct lpfc_hba *phba = ndlp->phba;
18214 /* The port is notified of the header region via a mailbox command. */
18215 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18219 /* Post all rpi memory regions to the port. */
18220 lpfc_resume_rpi(mboxq, ndlp);
18222 mboxq->mbox_cmpl = cmpl;
18223 mboxq->context1 = arg;
18224 mboxq->context2 = ndlp;
18226 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18227 mboxq->vport = ndlp->vport;
18228 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18229 if (rc == MBX_NOT_FINISHED) {
18230 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18231 "2010 Resume RPI Mailbox failed "
18232 "status %d, mbxStatus x%x\n", rc,
18233 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18234 mempool_free(mboxq, phba->mbox_mem_pool);
18241 * lpfc_sli4_init_vpi - Initialize a vpi with the port
18242 * @vport: Pointer to the vport for which the vpi is being initialized
18244 * This routine is invoked to activate a vpi with the port.
18248 * -Evalue otherwise
18251 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
18253 LPFC_MBOXQ_t *mboxq;
18255 int retval = MBX_SUCCESS;
18257 struct lpfc_hba *phba = vport->phba;
18258 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18261 lpfc_init_vpi(phba, mboxq, vport->vpi);
18262 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
18263 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
18264 if (rc != MBX_SUCCESS) {
18265 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
18266 "2022 INIT VPI Mailbox failed "
18267 "status %d, mbxStatus x%x\n", rc,
18268 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18271 if (rc != MBX_TIMEOUT)
18272 mempool_free(mboxq, vport->phba->mbox_mem_pool);
18278 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
18279 * @phba: pointer to lpfc hba data structure.
18280 * @mboxq: Pointer to mailbox object.
18282 * This routine is invoked to manually add a single FCF record. The caller
18283 * must pass a completely initialized FCF_Record. This routine takes
18284 * care of the nonembedded mailbox operations.
18287 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
18290 union lpfc_sli4_cfg_shdr *shdr;
18291 uint32_t shdr_status, shdr_add_status;
18293 virt_addr = mboxq->sge_array->addr[0];
18294 /* The IOCTL status is embedded in the mailbox subheader. */
18295 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
18296 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18297 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18299 if ((shdr_status || shdr_add_status) &&
18300 (shdr_status != STATUS_FCF_IN_USE))
18301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18302 "2558 ADD_FCF_RECORD mailbox failed with "
18303 "status x%x add_status x%x\n",
18304 shdr_status, shdr_add_status);
18306 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18310 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
18311 * @phba: pointer to lpfc hba data structure.
18312 * @fcf_record: pointer to the initialized fcf record to add.
18314 * This routine is invoked to manually add a single FCF record. The caller
18315 * must pass a completely initialized FCF_Record. This routine takes
18316 * care of the nonembedded mailbox operations.
18319 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
18322 LPFC_MBOXQ_t *mboxq;
18325 struct lpfc_mbx_sge sge;
18326 uint32_t alloc_len, req_len;
18329 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18332 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
18336 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
18339 /* Allocate DMA memory and set up the non-embedded mailbox command */
18340 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18341 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
18342 req_len, LPFC_SLI4_MBX_NEMBED);
18343 if (alloc_len < req_len) {
18344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18345 "2523 Allocated DMA memory size (x%x) is "
18346 "less than the requested DMA memory "
18347 "size (x%x)\n", alloc_len, req_len);
18348 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18353 * Get the first SGE entry from the non-embedded DMA memory. This
18354 * routine only uses a single SGE.
18356 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
18357 virt_addr = mboxq->sge_array->addr[0];
18359 * Configure the FCF record for FCFI 0. This is the driver's
18360 * hardcoded default and gets used in nonFIP mode.
18362 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
18363 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
18364 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
18367 * Copy the fcf_index and the FCF Record Data. The data starts after
18368 * the FCoE header plus word10. The data copy needs to be endian
18371 bytep += sizeof(uint32_t);
18372 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
18373 mboxq->vport = phba->pport;
18374 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
18375 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18376 if (rc == MBX_NOT_FINISHED) {
18377 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18378 "2515 ADD_FCF_RECORD mailbox failed with "
18379 "status 0x%x\n", rc);
18380 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18389 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
18390 * @phba: pointer to lpfc hba data structure.
18391 * @fcf_record: pointer to the fcf record to write the default data.
18392 * @fcf_index: FCF table entry index.
18394 * This routine is invoked to build the driver's default FCF record. The
18395 * values used are hardcoded. This routine handles memory initialization.
18399 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
18400 struct fcf_record *fcf_record,
18401 uint16_t fcf_index)
18403 memset(fcf_record, 0, sizeof(struct fcf_record));
18404 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
18405 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
18406 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
18407 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
18408 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
18409 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
18410 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
18411 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
18412 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
18413 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
18414 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
18415 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
18416 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
18417 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
18418 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
18419 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
18420 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
18421 /* Set the VLAN bit map */
18422 if (phba->valid_vlan) {
18423 fcf_record->vlan_bitmap[phba->vlan_id / 8]
18424 = 1 << (phba->vlan_id % 8);
18429 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
18430 * @phba: pointer to lpfc hba data structure.
18431 * @fcf_index: FCF table entry offset.
18433 * This routine is invoked to scan the entire FCF table by reading FCF
18434 * record and processing it one at a time starting from the @fcf_index
18435 * for initial FCF discovery or fast FCF failover rediscovery.
18437 * Return 0 if the mailbox command is submitted successfully, none 0
18441 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18444 LPFC_MBOXQ_t *mboxq;
18446 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
18447 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
18448 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18451 "2000 Failed to allocate mbox for "
18454 goto fail_fcf_scan;
18456 /* Construct the read FCF record mailbox command */
18457 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18460 goto fail_fcf_scan;
18462 /* Issue the mailbox command asynchronously */
18463 mboxq->vport = phba->pport;
18464 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
18466 spin_lock_irq(&phba->hbalock);
18467 phba->hba_flag |= FCF_TS_INPROG;
18468 spin_unlock_irq(&phba->hbalock);
18470 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18471 if (rc == MBX_NOT_FINISHED)
18474 /* Reset eligible FCF count for new scan */
18475 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
18476 phba->fcf.eligible_fcf_cnt = 0;
18482 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18483 /* FCF scan failed, clear FCF_TS_INPROG flag */
18484 spin_lock_irq(&phba->hbalock);
18485 phba->hba_flag &= ~FCF_TS_INPROG;
18486 spin_unlock_irq(&phba->hbalock);
18492 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
18493 * @phba: pointer to lpfc hba data structure.
18494 * @fcf_index: FCF table entry offset.
18496 * This routine is invoked to read an FCF record indicated by @fcf_index
18497 * and to use it for FLOGI roundrobin FCF failover.
18499 * Return 0 if the mailbox command is submitted successfully, none 0
18503 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18506 LPFC_MBOXQ_t *mboxq;
18508 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18510 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18511 "2763 Failed to allocate mbox for "
18514 goto fail_fcf_read;
18516 /* Construct the read FCF record mailbox command */
18517 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18520 goto fail_fcf_read;
18522 /* Issue the mailbox command asynchronously */
18523 mboxq->vport = phba->pport;
18524 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
18525 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18526 if (rc == MBX_NOT_FINISHED)
18532 if (error && mboxq)
18533 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18538 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
18539 * @phba: pointer to lpfc hba data structure.
18540 * @fcf_index: FCF table entry offset.
18542 * This routine is invoked to read an FCF record indicated by @fcf_index to
18543 * determine whether it's eligible for FLOGI roundrobin failover list.
18545 * Return 0 if the mailbox command is submitted successfully, none 0
18549 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18552 LPFC_MBOXQ_t *mboxq;
18554 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18556 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18557 "2758 Failed to allocate mbox for "
18560 goto fail_fcf_read;
18562 /* Construct the read FCF record mailbox command */
18563 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18566 goto fail_fcf_read;
18568 /* Issue the mailbox command asynchronously */
18569 mboxq->vport = phba->pport;
18570 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
18571 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18572 if (rc == MBX_NOT_FINISHED)
18578 if (error && mboxq)
18579 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18584 * lpfc_check_next_fcf_pri_level
18585 * phba pointer to the lpfc_hba struct for this port.
18586 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
18587 * routine when the rr_bmask is empty. The FCF indecies are put into the
18588 * rr_bmask based on their priority level. Starting from the highest priority
18589 * to the lowest. The most likely FCF candidate will be in the highest
18590 * priority group. When this routine is called it searches the fcf_pri list for
18591 * next lowest priority group and repopulates the rr_bmask with only those
18594 * 1=success 0=failure
18597 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
18599 uint16_t next_fcf_pri;
18600 uint16_t last_index;
18601 struct lpfc_fcf_pri *fcf_pri;
18605 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
18606 LPFC_SLI4_FCF_TBL_INDX_MAX);
18607 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18608 "3060 Last IDX %d\n", last_index);
18610 /* Verify the priority list has 2 or more entries */
18611 spin_lock_irq(&phba->hbalock);
18612 if (list_empty(&phba->fcf.fcf_pri_list) ||
18613 list_is_singular(&phba->fcf.fcf_pri_list)) {
18614 spin_unlock_irq(&phba->hbalock);
18615 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18616 "3061 Last IDX %d\n", last_index);
18617 return 0; /* Empty rr list */
18619 spin_unlock_irq(&phba->hbalock);
18623 * Clear the rr_bmask and set all of the bits that are at this
18626 memset(phba->fcf.fcf_rr_bmask, 0,
18627 sizeof(*phba->fcf.fcf_rr_bmask));
18628 spin_lock_irq(&phba->hbalock);
18629 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18630 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
18633 * the 1st priority that has not FLOGI failed
18634 * will be the highest.
18637 next_fcf_pri = fcf_pri->fcf_rec.priority;
18638 spin_unlock_irq(&phba->hbalock);
18639 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18640 rc = lpfc_sli4_fcf_rr_index_set(phba,
18641 fcf_pri->fcf_rec.fcf_index);
18645 spin_lock_irq(&phba->hbalock);
18648 * if next_fcf_pri was not set above and the list is not empty then
18649 * we have failed flogis on all of them. So reset flogi failed
18650 * and start at the beginning.
18652 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
18653 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18654 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
18656 * the 1st priority that has not FLOGI failed
18657 * will be the highest.
18660 next_fcf_pri = fcf_pri->fcf_rec.priority;
18661 spin_unlock_irq(&phba->hbalock);
18662 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18663 rc = lpfc_sli4_fcf_rr_index_set(phba,
18664 fcf_pri->fcf_rec.fcf_index);
18668 spin_lock_irq(&phba->hbalock);
18672 spin_unlock_irq(&phba->hbalock);
18677 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
18678 * @phba: pointer to lpfc hba data structure.
18680 * This routine is to get the next eligible FCF record index in a round
18681 * robin fashion. If the next eligible FCF record index equals to the
18682 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
18683 * shall be returned, otherwise, the next eligible FCF record's index
18684 * shall be returned.
18687 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
18689 uint16_t next_fcf_index;
18692 /* Search start from next bit of currently registered FCF index */
18693 next_fcf_index = phba->fcf.current_rec.fcf_indx;
18696 /* Determine the next fcf index to check */
18697 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
18698 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18699 LPFC_SLI4_FCF_TBL_INDX_MAX,
18702 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
18703 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18705 * If we have wrapped then we need to clear the bits that
18706 * have been tested so that we can detect when we should
18707 * change the priority level.
18709 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18710 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
18714 /* Check roundrobin failover list empty condition */
18715 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
18716 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
18718 * If next fcf index is not found check if there are lower
18719 * Priority level fcf's in the fcf_priority list.
18720 * Set up the rr_bmask with all of the avaiable fcf bits
18721 * at that level and continue the selection process.
18723 if (lpfc_check_next_fcf_pri_level(phba))
18724 goto initial_priority;
18725 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18726 "2844 No roundrobin failover FCF available\n");
18728 return LPFC_FCOE_FCF_NEXT_NONE;
18731 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
18732 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
18733 LPFC_FCF_FLOGI_FAILED) {
18734 if (list_is_singular(&phba->fcf.fcf_pri_list))
18735 return LPFC_FCOE_FCF_NEXT_NONE;
18737 goto next_priority;
18740 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18741 "2845 Get next roundrobin failover FCF (x%x)\n",
18744 return next_fcf_index;
18748 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
18749 * @phba: pointer to lpfc hba data structure.
18751 * This routine sets the FCF record index in to the eligible bmask for
18752 * roundrobin failover search. It checks to make sure that the index
18753 * does not go beyond the range of the driver allocated bmask dimension
18754 * before setting the bit.
18756 * Returns 0 if the index bit successfully set, otherwise, it returns
18760 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
18762 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18763 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18764 "2610 FCF (x%x) reached driver's book "
18765 "keeping dimension:x%x\n",
18766 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18769 /* Set the eligible FCF record index bmask */
18770 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18772 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18773 "2790 Set FCF (x%x) to roundrobin FCF failover "
18774 "bmask\n", fcf_index);
18780 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
18781 * @phba: pointer to lpfc hba data structure.
18783 * This routine clears the FCF record index from the eligible bmask for
18784 * roundrobin failover search. It checks to make sure that the index
18785 * does not go beyond the range of the driver allocated bmask dimension
18786 * before clearing the bit.
18789 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
18791 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
18792 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18793 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18794 "2762 FCF (x%x) reached driver's book "
18795 "keeping dimension:x%x\n",
18796 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18799 /* Clear the eligible FCF record index bmask */
18800 spin_lock_irq(&phba->hbalock);
18801 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
18803 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
18804 list_del_init(&fcf_pri->list);
18808 spin_unlock_irq(&phba->hbalock);
18809 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18811 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18812 "2791 Clear FCF (x%x) from roundrobin failover "
18813 "bmask\n", fcf_index);
18817 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
18818 * @phba: pointer to lpfc hba data structure.
18820 * This routine is the completion routine for the rediscover FCF table mailbox
18821 * command. If the mailbox command returned failure, it will try to stop the
18822 * FCF rediscover wait timer.
18825 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
18827 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18828 uint32_t shdr_status, shdr_add_status;
18830 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18832 shdr_status = bf_get(lpfc_mbox_hdr_status,
18833 &redisc_fcf->header.cfg_shdr.response);
18834 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
18835 &redisc_fcf->header.cfg_shdr.response);
18836 if (shdr_status || shdr_add_status) {
18837 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18838 "2746 Requesting for FCF rediscovery failed "
18839 "status x%x add_status x%x\n",
18840 shdr_status, shdr_add_status);
18841 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
18842 spin_lock_irq(&phba->hbalock);
18843 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
18844 spin_unlock_irq(&phba->hbalock);
18846 * CVL event triggered FCF rediscover request failed,
18847 * last resort to re-try current registered FCF entry.
18849 lpfc_retry_pport_discovery(phba);
18851 spin_lock_irq(&phba->hbalock);
18852 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
18853 spin_unlock_irq(&phba->hbalock);
18855 * DEAD FCF event triggered FCF rediscover request
18856 * failed, last resort to fail over as a link down
18857 * to FCF registration.
18859 lpfc_sli4_fcf_dead_failthrough(phba);
18862 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18863 "2775 Start FCF rediscover quiescent timer\n");
18865 * Start FCF rediscovery wait timer for pending FCF
18866 * before rescan FCF record table.
18868 lpfc_fcf_redisc_wait_start_timer(phba);
18871 mempool_free(mbox, phba->mbox_mem_pool);
18875 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
18876 * @phba: pointer to lpfc hba data structure.
18878 * This routine is invoked to request for rediscovery of the entire FCF table
18882 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
18884 LPFC_MBOXQ_t *mbox;
18885 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18888 /* Cancel retry delay timers to all vports before FCF rediscover */
18889 lpfc_cancel_all_vport_retry_delay_timer(phba);
18891 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18893 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18894 "2745 Failed to allocate mbox for "
18895 "requesting FCF rediscover.\n");
18899 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
18900 sizeof(struct lpfc_sli4_cfg_mhdr));
18901 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18902 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
18903 length, LPFC_SLI4_MBX_EMBED);
18905 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18906 /* Set count to 0 for invalidating the entire FCF database */
18907 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
18909 /* Issue the mailbox command asynchronously */
18910 mbox->vport = phba->pport;
18911 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
18912 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
18914 if (rc == MBX_NOT_FINISHED) {
18915 mempool_free(mbox, phba->mbox_mem_pool);
18922 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
18923 * @phba: pointer to lpfc hba data structure.
18925 * This function is the failover routine as a last resort to the FCF DEAD
18926 * event when driver failed to perform fast FCF failover.
18929 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
18931 uint32_t link_state;
18934 * Last resort as FCF DEAD event failover will treat this as
18935 * a link down, but save the link state because we don't want
18936 * it to be changed to Link Down unless it is already down.
18938 link_state = phba->link_state;
18939 lpfc_linkdown(phba);
18940 phba->link_state = link_state;
18942 /* Unregister FCF if no devices connected to it */
18943 lpfc_unregister_unused_fcf(phba);
18947 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
18948 * @phba: pointer to lpfc hba data structure.
18949 * @rgn23_data: pointer to configure region 23 data.
18951 * This function gets SLI3 port configure region 23 data through memory dump
18952 * mailbox command. When it successfully retrieves data, the size of the data
18953 * will be returned, otherwise, 0 will be returned.
18956 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18958 LPFC_MBOXQ_t *pmb = NULL;
18960 uint32_t offset = 0;
18966 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18969 "2600 failed to allocate mailbox memory\n");
18975 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
18976 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
18978 if (rc != MBX_SUCCESS) {
18979 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
18980 "2601 failed to read config "
18981 "region 23, rc 0x%x Status 0x%x\n",
18982 rc, mb->mbxStatus);
18983 mb->un.varDmp.word_cnt = 0;
18986 * dump mem may return a zero when finished or we got a
18987 * mailbox error, either way we are done.
18989 if (mb->un.varDmp.word_cnt == 0)
18991 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
18992 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
18994 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
18995 rgn23_data + offset,
18996 mb->un.varDmp.word_cnt);
18997 offset += mb->un.varDmp.word_cnt;
18998 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
19000 mempool_free(pmb, phba->mbox_mem_pool);
19005 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
19006 * @phba: pointer to lpfc hba data structure.
19007 * @rgn23_data: pointer to configure region 23 data.
19009 * This function gets SLI4 port configure region 23 data through memory dump
19010 * mailbox command. When it successfully retrieves data, the size of the data
19011 * will be returned, otherwise, 0 will be returned.
19014 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19016 LPFC_MBOXQ_t *mboxq = NULL;
19017 struct lpfc_dmabuf *mp = NULL;
19018 struct lpfc_mqe *mqe;
19019 uint32_t data_length = 0;
19025 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19028 "3105 failed to allocate mailbox memory\n");
19032 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
19034 mqe = &mboxq->u.mqe;
19035 mp = (struct lpfc_dmabuf *) mboxq->context1;
19036 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
19039 data_length = mqe->un.mb_words[5];
19040 if (data_length == 0)
19042 if (data_length > DMP_RGN23_SIZE) {
19046 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
19048 mempool_free(mboxq, phba->mbox_mem_pool);
19050 lpfc_mbuf_free(phba, mp->virt, mp->phys);
19053 return data_length;
19057 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
19058 * @phba: pointer to lpfc hba data structure.
19060 * This function read region 23 and parse TLV for port status to
19061 * decide if the user disaled the port. If the TLV indicates the
19062 * port is disabled, the hba_flag is set accordingly.
19065 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
19067 uint8_t *rgn23_data = NULL;
19068 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
19069 uint32_t offset = 0;
19071 /* Get adapter Region 23 data */
19072 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
19076 if (phba->sli_rev < LPFC_SLI_REV4)
19077 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
19079 if_type = bf_get(lpfc_sli_intf_if_type,
19080 &phba->sli4_hba.sli_intf);
19081 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
19083 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
19089 /* Check the region signature first */
19090 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
19091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19092 "2619 Config region 23 has bad signature\n");
19097 /* Check the data structure version */
19098 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
19099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19100 "2620 Config region 23 has bad version\n");
19105 /* Parse TLV entries in the region */
19106 while (offset < data_size) {
19107 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
19110 * If the TLV is not driver specific TLV or driver id is
19111 * not linux driver id, skip the record.
19113 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
19114 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
19115 (rgn23_data[offset + 3] != 0)) {
19116 offset += rgn23_data[offset + 1] * 4 + 4;
19120 /* Driver found a driver specific TLV in the config region */
19121 sub_tlv_len = rgn23_data[offset + 1] * 4;
19126 * Search for configured port state sub-TLV.
19128 while ((offset < data_size) &&
19129 (tlv_offset < sub_tlv_len)) {
19130 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
19135 if (rgn23_data[offset] != PORT_STE_TYPE) {
19136 offset += rgn23_data[offset + 1] * 4 + 4;
19137 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
19141 /* This HBA contains PORT_STE configured */
19142 if (!rgn23_data[offset + 2])
19143 phba->hba_flag |= LINK_DISABLED;
19155 * lpfc_wr_object - write an object to the firmware
19156 * @phba: HBA structure that indicates port to create a queue on.
19157 * @dmabuf_list: list of dmabufs to write to the port.
19158 * @size: the total byte value of the objects to write to the port.
19159 * @offset: the current offset to be used to start the transfer.
19161 * This routine will create a wr_object mailbox command to send to the port.
19162 * the mailbox command will be constructed using the dma buffers described in
19163 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
19164 * BDEs that the imbedded mailbox can support. The @offset variable will be
19165 * used to indicate the starting offset of the transfer and will also return
19166 * the offset after the write object mailbox has completed. @size is used to
19167 * determine the end of the object and whether the eof bit should be set.
19169 * Return 0 is successful and offset will contain the the new offset to use
19170 * for the next write.
19171 * Return negative value for error cases.
19174 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
19175 uint32_t size, uint32_t *offset)
19177 struct lpfc_mbx_wr_object *wr_object;
19178 LPFC_MBOXQ_t *mbox;
19180 uint32_t shdr_status, shdr_add_status;
19182 union lpfc_sli4_cfg_shdr *shdr;
19183 struct lpfc_dmabuf *dmabuf;
19184 uint32_t written = 0;
19186 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19190 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
19191 LPFC_MBOX_OPCODE_WRITE_OBJECT,
19192 sizeof(struct lpfc_mbx_wr_object) -
19193 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
19195 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
19196 wr_object->u.request.write_offset = *offset;
19197 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
19198 wr_object->u.request.object_name[0] =
19199 cpu_to_le32(wr_object->u.request.object_name[0]);
19200 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
19201 list_for_each_entry(dmabuf, dmabuf_list, list) {
19202 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
19204 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
19205 wr_object->u.request.bde[i].addrHigh =
19206 putPaddrHigh(dmabuf->phys);
19207 if (written + SLI4_PAGE_SIZE >= size) {
19208 wr_object->u.request.bde[i].tus.f.bdeSize =
19210 written += (size - written);
19211 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
19213 wr_object->u.request.bde[i].tus.f.bdeSize =
19215 written += SLI4_PAGE_SIZE;
19219 wr_object->u.request.bde_count = i;
19220 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
19221 if (!phba->sli4_hba.intr_enable)
19222 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
19224 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
19225 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
19227 /* The IOCTL status is embedded in the mailbox subheader. */
19228 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
19229 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
19230 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
19231 if (rc != MBX_TIMEOUT)
19232 mempool_free(mbox, phba->mbox_mem_pool);
19233 if (shdr_status || shdr_add_status || rc) {
19234 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19235 "3025 Write Object mailbox failed with "
19236 "status x%x add_status x%x, mbx status x%x\n",
19237 shdr_status, shdr_add_status, rc);
19239 *offset = shdr_add_status;
19241 *offset += wr_object->u.response.actual_write_length;
19246 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
19247 * @vport: pointer to vport data structure.
19249 * This function iterate through the mailboxq and clean up all REG_LOGIN
19250 * and REG_VPI mailbox commands associated with the vport. This function
19251 * is called when driver want to restart discovery of the vport due to
19252 * a Clear Virtual Link event.
19255 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
19257 struct lpfc_hba *phba = vport->phba;
19258 LPFC_MBOXQ_t *mb, *nextmb;
19259 struct lpfc_dmabuf *mp;
19260 struct lpfc_nodelist *ndlp;
19261 struct lpfc_nodelist *act_mbx_ndlp = NULL;
19262 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
19263 LIST_HEAD(mbox_cmd_list);
19264 uint8_t restart_loop;
19266 /* Clean up internally queued mailbox commands with the vport */
19267 spin_lock_irq(&phba->hbalock);
19268 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
19269 if (mb->vport != vport)
19272 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19273 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19276 list_del(&mb->list);
19277 list_add_tail(&mb->list, &mbox_cmd_list);
19279 /* Clean up active mailbox command with the vport */
19280 mb = phba->sli.mbox_active;
19281 if (mb && (mb->vport == vport)) {
19282 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
19283 (mb->u.mb.mbxCommand == MBX_REG_VPI))
19284 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19285 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19286 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
19287 /* Put reference count for delayed processing */
19288 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
19289 /* Unregister the RPI when mailbox complete */
19290 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19293 /* Cleanup any mailbox completions which are not yet processed */
19296 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
19298 * If this mailox is already processed or it is
19299 * for another vport ignore it.
19301 if ((mb->vport != vport) ||
19302 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
19305 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19306 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19309 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19310 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19311 ndlp = (struct lpfc_nodelist *)mb->context2;
19312 /* Unregister the RPI when mailbox complete */
19313 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19315 spin_unlock_irq(&phba->hbalock);
19316 spin_lock(shost->host_lock);
19317 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19318 spin_unlock(shost->host_lock);
19319 spin_lock_irq(&phba->hbalock);
19323 } while (restart_loop);
19325 spin_unlock_irq(&phba->hbalock);
19327 /* Release the cleaned-up mailbox commands */
19328 while (!list_empty(&mbox_cmd_list)) {
19329 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
19330 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19331 mp = (struct lpfc_dmabuf *) (mb->context1);
19333 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
19336 ndlp = (struct lpfc_nodelist *) mb->context2;
19337 mb->context2 = NULL;
19339 spin_lock(shost->host_lock);
19340 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19341 spin_unlock(shost->host_lock);
19342 lpfc_nlp_put(ndlp);
19345 mempool_free(mb, phba->mbox_mem_pool);
19348 /* Release the ndlp with the cleaned-up active mailbox command */
19349 if (act_mbx_ndlp) {
19350 spin_lock(shost->host_lock);
19351 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19352 spin_unlock(shost->host_lock);
19353 lpfc_nlp_put(act_mbx_ndlp);
19358 * lpfc_drain_txq - Drain the txq
19359 * @phba: Pointer to HBA context object.
19361 * This function attempt to submit IOCBs on the txq
19362 * to the adapter. For SLI4 adapters, the txq contains
19363 * ELS IOCBs that have been deferred because the there
19364 * are no SGLs. This congestion can occur with large
19365 * vport counts during node discovery.
19369 lpfc_drain_txq(struct lpfc_hba *phba)
19371 LIST_HEAD(completions);
19372 struct lpfc_sli_ring *pring;
19373 struct lpfc_iocbq *piocbq = NULL;
19374 unsigned long iflags = 0;
19375 char *fail_msg = NULL;
19376 struct lpfc_sglq *sglq;
19377 union lpfc_wqe128 wqe;
19378 uint32_t txq_cnt = 0;
19379 struct lpfc_queue *wq;
19381 if (phba->link_flag & LS_MDS_LOOPBACK) {
19382 /* MDS WQE are posted only to first WQ*/
19383 wq = phba->sli4_hba.fcp_wq[0];
19388 wq = phba->sli4_hba.els_wq;
19391 pring = lpfc_phba_elsring(phba);
19394 if (unlikely(!pring) || list_empty(&pring->txq))
19397 spin_lock_irqsave(&pring->ring_lock, iflags);
19398 list_for_each_entry(piocbq, &pring->txq, list) {
19402 if (txq_cnt > pring->txq_max)
19403 pring->txq_max = txq_cnt;
19405 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19407 while (!list_empty(&pring->txq)) {
19408 spin_lock_irqsave(&pring->ring_lock, iflags);
19410 piocbq = lpfc_sli_ringtx_get(phba, pring);
19412 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19413 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19414 "2823 txq empty and txq_cnt is %d\n ",
19418 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
19420 __lpfc_sli_ringtx_put(phba, pring, piocbq);
19421 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19426 /* The xri and iocb resources secured,
19427 * attempt to issue request
19429 piocbq->sli4_lxritag = sglq->sli4_lxritag;
19430 piocbq->sli4_xritag = sglq->sli4_xritag;
19431 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
19432 fail_msg = "to convert bpl to sgl";
19433 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
19434 fail_msg = "to convert iocb to wqe";
19435 else if (lpfc_sli4_wq_put(wq, &wqe))
19436 fail_msg = " - Wq is full";
19438 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
19441 /* Failed means we can't issue and need to cancel */
19442 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19443 "2822 IOCB failed %s iotag 0x%x "
19446 piocbq->iotag, piocbq->sli4_xritag);
19447 list_add_tail(&piocbq->list, &completions);
19449 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19452 /* Cancel all the IOCBs that cannot be issued */
19453 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
19454 IOERR_SLI_ABORTED);
19460 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
19461 * @phba: Pointer to HBA context object.
19462 * @pwqe: Pointer to command WQE.
19463 * @sglq: Pointer to the scatter gather queue object.
19465 * This routine converts the bpl or bde that is in the WQE
19466 * to a sgl list for the sli4 hardware. The physical address
19467 * of the bpl/bde is converted back to a virtual address.
19468 * If the WQE contains a BPL then the list of BDE's is
19469 * converted to sli4_sge's. If the WQE contains a single
19470 * BDE then it is converted to a single sli_sge.
19471 * The WQE is still in cpu endianness so the contents of
19472 * the bpl can be used without byte swapping.
19474 * Returns valid XRI = Success, NO_XRI = Failure.
19477 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
19478 struct lpfc_sglq *sglq)
19480 uint16_t xritag = NO_XRI;
19481 struct ulp_bde64 *bpl = NULL;
19482 struct ulp_bde64 bde;
19483 struct sli4_sge *sgl = NULL;
19484 struct lpfc_dmabuf *dmabuf;
19485 union lpfc_wqe128 *wqe;
19488 uint32_t offset = 0; /* accumulated offset in the sg request list */
19489 int inbound = 0; /* number of sg reply entries inbound from firmware */
19492 if (!pwqeq || !sglq)
19495 sgl = (struct sli4_sge *)sglq->sgl;
19497 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
19499 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
19500 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
19501 return sglq->sli4_xritag;
19502 numBdes = pwqeq->rsvd2;
19504 /* The addrHigh and addrLow fields within the WQE
19505 * have not been byteswapped yet so there is no
19506 * need to swap them back.
19508 if (pwqeq->context3)
19509 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
19513 bpl = (struct ulp_bde64 *)dmabuf->virt;
19517 for (i = 0; i < numBdes; i++) {
19518 /* Should already be byte swapped. */
19519 sgl->addr_hi = bpl->addrHigh;
19520 sgl->addr_lo = bpl->addrLow;
19522 sgl->word2 = le32_to_cpu(sgl->word2);
19523 if ((i+1) == numBdes)
19524 bf_set(lpfc_sli4_sge_last, sgl, 1);
19526 bf_set(lpfc_sli4_sge_last, sgl, 0);
19527 /* swap the size field back to the cpu so we
19528 * can assign it to the sgl.
19530 bde.tus.w = le32_to_cpu(bpl->tus.w);
19531 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
19532 /* The offsets in the sgl need to be accumulated
19533 * separately for the request and reply lists.
19534 * The request is always first, the reply follows.
19537 case CMD_GEN_REQUEST64_WQE:
19538 /* add up the reply sg entries */
19539 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
19541 /* first inbound? reset the offset */
19544 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19545 bf_set(lpfc_sli4_sge_type, sgl,
19546 LPFC_SGE_TYPE_DATA);
19547 offset += bde.tus.f.bdeSize;
19549 case CMD_FCP_TRSP64_WQE:
19550 bf_set(lpfc_sli4_sge_offset, sgl, 0);
19551 bf_set(lpfc_sli4_sge_type, sgl,
19552 LPFC_SGE_TYPE_DATA);
19554 case CMD_FCP_TSEND64_WQE:
19555 case CMD_FCP_TRECEIVE64_WQE:
19556 bf_set(lpfc_sli4_sge_type, sgl,
19557 bpl->tus.f.bdeFlags);
19561 offset += bde.tus.f.bdeSize;
19562 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19565 sgl->word2 = cpu_to_le32(sgl->word2);
19569 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
19570 /* The addrHigh and addrLow fields of the BDE have not
19571 * been byteswapped yet so they need to be swapped
19572 * before putting them in the sgl.
19574 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
19575 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
19576 sgl->word2 = le32_to_cpu(sgl->word2);
19577 bf_set(lpfc_sli4_sge_last, sgl, 1);
19578 sgl->word2 = cpu_to_le32(sgl->word2);
19579 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
19581 return sglq->sli4_xritag;
19585 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
19586 * @phba: Pointer to HBA context object.
19587 * @ring_number: Base sli ring number
19588 * @pwqe: Pointer to command WQE.
19591 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, uint32_t ring_number,
19592 struct lpfc_iocbq *pwqe)
19594 union lpfc_wqe128 *wqe = &pwqe->wqe;
19595 struct lpfc_nvmet_rcv_ctx *ctxp;
19596 struct lpfc_queue *wq;
19597 struct lpfc_sglq *sglq;
19598 struct lpfc_sli_ring *pring;
19599 unsigned long iflags;
19602 /* NVME_LS and NVME_LS ABTS requests. */
19603 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
19604 pring = phba->sli4_hba.nvmels_wq->pring;
19605 spin_lock_irqsave(&pring->ring_lock, iflags);
19606 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
19608 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19611 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19612 pwqe->sli4_xritag = sglq->sli4_xritag;
19613 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
19614 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19617 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19618 pwqe->sli4_xritag);
19619 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
19621 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19625 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19626 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19630 /* NVME_FCREQ and NVME_ABTS requests */
19631 if (pwqe->iocb_flag & LPFC_IO_NVME) {
19632 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19633 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
19635 spin_lock_irqsave(&pring->ring_lock, iflags);
19636 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
19637 bf_set(wqe_cqid, &wqe->generic.wqe_com,
19638 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
19639 ret = lpfc_sli4_wq_put(wq, wqe);
19641 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19644 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19645 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19649 /* NVMET requests */
19650 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
19651 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19652 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
19654 spin_lock_irqsave(&pring->ring_lock, iflags);
19655 ctxp = pwqe->context2;
19656 sglq = ctxp->ctxbuf->sglq;
19657 if (pwqe->sli4_xritag == NO_XRI) {
19658 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19659 pwqe->sli4_xritag = sglq->sli4_xritag;
19661 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19662 pwqe->sli4_xritag);
19663 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
19664 bf_set(wqe_cqid, &wqe->generic.wqe_com,
19665 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
19666 ret = lpfc_sli4_wq_put(wq, wqe);
19668 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19671 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19672 spin_unlock_irqrestore(&pring->ring_lock, iflags);