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_WARNING, 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_alloc_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 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
6244 dmabuf->buffer_tag = i;
6245 list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
6250 lpfc_sli4_ras_dma_free(phba);
6256 * lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
6257 * @phba: pointer to lpfc hba data structure.
6258 * @pmboxq: pointer to the driver internal queue element for mailbox command.
6260 * Completion handler for driver's RAS MBX command to the device.
6263 lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6266 union lpfc_sli4_cfg_shdr *shdr;
6267 uint32_t shdr_status, shdr_add_status;
6268 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6272 shdr = (union lpfc_sli4_cfg_shdr *)
6273 &pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
6274 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6275 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6277 if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
6278 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6279 "6188 FW LOG mailbox "
6280 "completed with status x%x add_status x%x,"
6281 " mbx status x%x\n",
6282 shdr_status, shdr_add_status, mb->mbxStatus);
6286 ras_fwlog->ras_active = true;
6287 mempool_free(pmb, phba->mbox_mem_pool);
6292 /* Free RAS DMA memory */
6293 lpfc_sli4_ras_dma_free(phba);
6294 mempool_free(pmb, phba->mbox_mem_pool);
6298 * lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
6299 * @phba: pointer to lpfc hba data structure.
6300 * @fwlog_level: Logging verbosity level.
6301 * @fwlog_enable: Enable/Disable logging.
6303 * Initialize memory and post mailbox command to enable FW logging in host
6307 lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
6308 uint32_t fwlog_level,
6309 uint32_t fwlog_enable)
6311 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6312 struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
6313 struct lpfc_dmabuf *dmabuf;
6315 uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
6318 fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
6319 phba->cfg_ras_fwlog_buffsize);
6320 fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
6323 * If re-enabling FW logging support use earlier allocated
6324 * DMA buffers while posting MBX command.
6326 if (!ras_fwlog->lwpd.virt) {
6327 rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
6329 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6330 "6189 RAS FW Log Support Not Enabled");
6335 /* Setup Mailbox command */
6336 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6338 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6339 "6190 RAS MBX Alloc Failed");
6344 ras_fwlog->fw_loglevel = fwlog_level;
6345 len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
6346 sizeof(struct lpfc_sli4_cfg_mhdr));
6348 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
6349 LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
6350 len, LPFC_SLI4_MBX_EMBED);
6352 mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
6353 bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
6355 bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
6356 ras_fwlog->fw_loglevel);
6357 bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
6358 ras_fwlog->fw_buffcount);
6359 bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
6360 LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
6362 /* Update DMA buffer address */
6363 list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
6364 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
6366 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
6367 putPaddrLow(dmabuf->phys);
6369 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
6370 putPaddrHigh(dmabuf->phys);
6373 /* Update LPWD address */
6374 mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
6375 mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
6377 mbox->vport = phba->pport;
6378 mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
6380 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6382 if (rc == MBX_NOT_FINISHED) {
6383 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6384 "6191 RAS Mailbox failed. "
6385 "status %d mbxStatus : x%x", rc,
6386 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6387 mempool_free(mbox, phba->mbox_mem_pool);
6394 lpfc_sli4_ras_dma_free(phba);
6400 * lpfc_sli4_ras_setup - Check if RAS supported on the adapter
6401 * @phba: Pointer to HBA context object.
6403 * Check if RAS is supported on the adapter and initialize it.
6406 lpfc_sli4_ras_setup(struct lpfc_hba *phba)
6408 /* Check RAS FW Log needs to be enabled or not */
6409 if (lpfc_check_fwlog_support(phba))
6412 lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
6413 LPFC_RAS_ENABLE_LOGGING);
6417 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
6418 * @phba: Pointer to HBA context object.
6420 * This function allocates all SLI4 resource identifiers.
6423 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
6425 int i, rc, error = 0;
6426 uint16_t count, base;
6427 unsigned long longs;
6429 if (!phba->sli4_hba.rpi_hdrs_in_use)
6430 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
6431 if (phba->sli4_hba.extents_in_use) {
6433 * The port supports resource extents. The XRI, VPI, VFI, RPI
6434 * resource extent count must be read and allocated before
6435 * provisioning the resource id arrays.
6437 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6438 LPFC_IDX_RSRC_RDY) {
6440 * Extent-based resources are set - the driver could
6441 * be in a port reset. Figure out if any corrective
6442 * actions need to be taken.
6444 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6445 LPFC_RSC_TYPE_FCOE_VFI);
6448 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6449 LPFC_RSC_TYPE_FCOE_VPI);
6452 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6453 LPFC_RSC_TYPE_FCOE_XRI);
6456 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6457 LPFC_RSC_TYPE_FCOE_RPI);
6462 * It's possible that the number of resources
6463 * provided to this port instance changed between
6464 * resets. Detect this condition and reallocate
6465 * resources. Otherwise, there is no action.
6468 lpfc_printf_log(phba, KERN_INFO,
6469 LOG_MBOX | LOG_INIT,
6470 "2931 Detected extent resource "
6471 "change. Reallocating all "
6473 rc = lpfc_sli4_dealloc_extent(phba,
6474 LPFC_RSC_TYPE_FCOE_VFI);
6475 rc = lpfc_sli4_dealloc_extent(phba,
6476 LPFC_RSC_TYPE_FCOE_VPI);
6477 rc = lpfc_sli4_dealloc_extent(phba,
6478 LPFC_RSC_TYPE_FCOE_XRI);
6479 rc = lpfc_sli4_dealloc_extent(phba,
6480 LPFC_RSC_TYPE_FCOE_RPI);
6485 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6489 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6493 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6497 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6500 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6505 * The port does not support resource extents. The XRI, VPI,
6506 * VFI, RPI resource ids were determined from READ_CONFIG.
6507 * Just allocate the bitmasks and provision the resource id
6508 * arrays. If a port reset is active, the resources don't
6509 * need any action - just exit.
6511 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6512 LPFC_IDX_RSRC_RDY) {
6513 lpfc_sli4_dealloc_resource_identifiers(phba);
6514 lpfc_sli4_remove_rpis(phba);
6517 count = phba->sli4_hba.max_cfg_param.max_rpi;
6519 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6520 "3279 Invalid provisioning of "
6525 base = phba->sli4_hba.max_cfg_param.rpi_base;
6526 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6527 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6528 sizeof(unsigned long),
6530 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6534 phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
6536 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6538 goto free_rpi_bmask;
6541 for (i = 0; i < count; i++)
6542 phba->sli4_hba.rpi_ids[i] = base + i;
6545 count = phba->sli4_hba.max_cfg_param.max_vpi;
6547 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6548 "3280 Invalid provisioning of "
6553 base = phba->sli4_hba.max_cfg_param.vpi_base;
6554 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6555 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6557 if (unlikely(!phba->vpi_bmask)) {
6561 phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
6563 if (unlikely(!phba->vpi_ids)) {
6565 goto free_vpi_bmask;
6568 for (i = 0; i < count; i++)
6569 phba->vpi_ids[i] = base + i;
6572 count = phba->sli4_hba.max_cfg_param.max_xri;
6574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6575 "3281 Invalid provisioning of "
6580 base = phba->sli4_hba.max_cfg_param.xri_base;
6581 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6582 phba->sli4_hba.xri_bmask = kcalloc(longs,
6583 sizeof(unsigned long),
6585 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6589 phba->sli4_hba.max_cfg_param.xri_used = 0;
6590 phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
6592 if (unlikely(!phba->sli4_hba.xri_ids)) {
6594 goto free_xri_bmask;
6597 for (i = 0; i < count; i++)
6598 phba->sli4_hba.xri_ids[i] = base + i;
6601 count = phba->sli4_hba.max_cfg_param.max_vfi;
6603 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6604 "3282 Invalid provisioning of "
6609 base = phba->sli4_hba.max_cfg_param.vfi_base;
6610 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6611 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6612 sizeof(unsigned long),
6614 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6618 phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
6620 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6622 goto free_vfi_bmask;
6625 for (i = 0; i < count; i++)
6626 phba->sli4_hba.vfi_ids[i] = base + i;
6629 * Mark all resources ready. An HBA reset doesn't need
6630 * to reset the initialization.
6632 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6638 kfree(phba->sli4_hba.vfi_bmask);
6639 phba->sli4_hba.vfi_bmask = NULL;
6641 kfree(phba->sli4_hba.xri_ids);
6642 phba->sli4_hba.xri_ids = NULL;
6644 kfree(phba->sli4_hba.xri_bmask);
6645 phba->sli4_hba.xri_bmask = NULL;
6647 kfree(phba->vpi_ids);
6648 phba->vpi_ids = NULL;
6650 kfree(phba->vpi_bmask);
6651 phba->vpi_bmask = NULL;
6653 kfree(phba->sli4_hba.rpi_ids);
6654 phba->sli4_hba.rpi_ids = NULL;
6656 kfree(phba->sli4_hba.rpi_bmask);
6657 phba->sli4_hba.rpi_bmask = NULL;
6663 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6664 * @phba: Pointer to HBA context object.
6666 * This function allocates the number of elements for the specified
6670 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6672 if (phba->sli4_hba.extents_in_use) {
6673 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6674 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6675 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6676 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6678 kfree(phba->vpi_bmask);
6679 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6680 kfree(phba->vpi_ids);
6681 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6682 kfree(phba->sli4_hba.xri_bmask);
6683 kfree(phba->sli4_hba.xri_ids);
6684 kfree(phba->sli4_hba.vfi_bmask);
6685 kfree(phba->sli4_hba.vfi_ids);
6686 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6687 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6694 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6695 * @phba: Pointer to HBA context object.
6696 * @type: The resource extent type.
6697 * @extnt_count: buffer to hold port extent count response
6698 * @extnt_size: buffer to hold port extent size response.
6700 * This function calls the port to read the host allocated extents
6701 * for a particular type.
6704 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6705 uint16_t *extnt_cnt, uint16_t *extnt_size)
6709 uint16_t curr_blks = 0;
6710 uint32_t req_len, emb_len;
6711 uint32_t alloc_len, mbox_tmo;
6712 struct list_head *blk_list_head;
6713 struct lpfc_rsrc_blks *rsrc_blk;
6715 void *virtaddr = NULL;
6716 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6717 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6718 union lpfc_sli4_cfg_shdr *shdr;
6721 case LPFC_RSC_TYPE_FCOE_VPI:
6722 blk_list_head = &phba->lpfc_vpi_blk_list;
6724 case LPFC_RSC_TYPE_FCOE_XRI:
6725 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6727 case LPFC_RSC_TYPE_FCOE_VFI:
6728 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6730 case LPFC_RSC_TYPE_FCOE_RPI:
6731 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6737 /* Count the number of extents currently allocatd for this type. */
6738 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6739 if (curr_blks == 0) {
6741 * The GET_ALLOCATED mailbox does not return the size,
6742 * just the count. The size should be just the size
6743 * stored in the current allocated block and all sizes
6744 * for an extent type are the same so set the return
6747 *extnt_size = rsrc_blk->rsrc_size;
6753 * Calculate the size of an embedded mailbox. The uint32_t
6754 * accounts for extents-specific word.
6756 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6760 * Presume the allocation and response will fit into an embedded
6761 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6763 emb = LPFC_SLI4_MBX_EMBED;
6765 if (req_len > emb_len) {
6766 req_len = curr_blks * sizeof(uint16_t) +
6767 sizeof(union lpfc_sli4_cfg_shdr) +
6769 emb = LPFC_SLI4_MBX_NEMBED;
6772 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6775 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6777 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6778 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6780 if (alloc_len < req_len) {
6781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6782 "2983 Allocated DMA memory size (x%x) is "
6783 "less than the requested DMA memory "
6784 "size (x%x)\n", alloc_len, req_len);
6788 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6794 if (!phba->sli4_hba.intr_enable)
6795 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6797 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6798 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6807 * Figure out where the response is located. Then get local pointers
6808 * to the response data. The port does not guarantee to respond to
6809 * all extents counts request so update the local variable with the
6810 * allocated count from the port.
6812 if (emb == LPFC_SLI4_MBX_EMBED) {
6813 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6814 shdr = &rsrc_ext->header.cfg_shdr;
6815 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6817 virtaddr = mbox->sge_array->addr[0];
6818 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6819 shdr = &n_rsrc->cfg_shdr;
6820 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6823 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6824 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6825 "2984 Failed to read allocated resources "
6826 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6828 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6829 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6834 lpfc_sli4_mbox_cmd_free(phba, mbox);
6839 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
6840 * @phba: pointer to lpfc hba data structure.
6841 * @pring: Pointer to driver SLI ring object.
6842 * @sgl_list: linked link of sgl buffers to post
6843 * @cnt: number of linked list buffers
6845 * This routine walks the list of buffers that have been allocated and
6846 * repost them to the port by using SGL block post. This is needed after a
6847 * pci_function_reset/warm_start or start. It attempts to construct blocks
6848 * of buffer sgls which contains contiguous xris and uses the non-embedded
6849 * SGL block post mailbox commands to post them to the port. For single
6850 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6851 * mailbox command for posting.
6853 * Returns: 0 = success, non-zero failure.
6856 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6857 struct list_head *sgl_list, int cnt)
6859 struct lpfc_sglq *sglq_entry = NULL;
6860 struct lpfc_sglq *sglq_entry_next = NULL;
6861 struct lpfc_sglq *sglq_entry_first = NULL;
6862 int status, total_cnt;
6863 int post_cnt = 0, num_posted = 0, block_cnt = 0;
6864 int last_xritag = NO_XRI;
6865 LIST_HEAD(prep_sgl_list);
6866 LIST_HEAD(blck_sgl_list);
6867 LIST_HEAD(allc_sgl_list);
6868 LIST_HEAD(post_sgl_list);
6869 LIST_HEAD(free_sgl_list);
6871 spin_lock_irq(&phba->hbalock);
6872 spin_lock(&phba->sli4_hba.sgl_list_lock);
6873 list_splice_init(sgl_list, &allc_sgl_list);
6874 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6875 spin_unlock_irq(&phba->hbalock);
6878 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6879 &allc_sgl_list, list) {
6880 list_del_init(&sglq_entry->list);
6882 if ((last_xritag != NO_XRI) &&
6883 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6884 /* a hole in xri block, form a sgl posting block */
6885 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6886 post_cnt = block_cnt - 1;
6887 /* prepare list for next posting block */
6888 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6891 /* prepare list for next posting block */
6892 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6893 /* enough sgls for non-embed sgl mbox command */
6894 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6895 list_splice_init(&prep_sgl_list,
6897 post_cnt = block_cnt;
6903 /* keep track of last sgl's xritag */
6904 last_xritag = sglq_entry->sli4_xritag;
6906 /* end of repost sgl list condition for buffers */
6907 if (num_posted == total_cnt) {
6908 if (post_cnt == 0) {
6909 list_splice_init(&prep_sgl_list,
6911 post_cnt = block_cnt;
6912 } else if (block_cnt == 1) {
6913 status = lpfc_sli4_post_sgl(phba,
6914 sglq_entry->phys, 0,
6915 sglq_entry->sli4_xritag);
6917 /* successful, put sgl to posted list */
6918 list_add_tail(&sglq_entry->list,
6921 /* Failure, put sgl to free list */
6922 lpfc_printf_log(phba, KERN_WARNING,
6924 "3159 Failed to post "
6925 "sgl, xritag:x%x\n",
6926 sglq_entry->sli4_xritag);
6927 list_add_tail(&sglq_entry->list,
6934 /* continue until a nembed page worth of sgls */
6938 /* post the buffer list sgls as a block */
6939 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
6943 /* success, put sgl list to posted sgl list */
6944 list_splice_init(&blck_sgl_list, &post_sgl_list);
6946 /* Failure, put sgl list to free sgl list */
6947 sglq_entry_first = list_first_entry(&blck_sgl_list,
6950 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6951 "3160 Failed to post sgl-list, "
6953 sglq_entry_first->sli4_xritag,
6954 (sglq_entry_first->sli4_xritag +
6956 list_splice_init(&blck_sgl_list, &free_sgl_list);
6957 total_cnt -= post_cnt;
6960 /* don't reset xirtag due to hole in xri block */
6962 last_xritag = NO_XRI;
6964 /* reset sgl post count for next round of posting */
6968 /* free the sgls failed to post */
6969 lpfc_free_sgl_list(phba, &free_sgl_list);
6971 /* push sgls posted to the available list */
6972 if (!list_empty(&post_sgl_list)) {
6973 spin_lock_irq(&phba->hbalock);
6974 spin_lock(&phba->sli4_hba.sgl_list_lock);
6975 list_splice_init(&post_sgl_list, sgl_list);
6976 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6977 spin_unlock_irq(&phba->hbalock);
6979 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6980 "3161 Failure to post sgl to port.\n");
6984 /* return the number of XRIs actually posted */
6989 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
6993 len = sizeof(struct lpfc_mbx_set_host_data) -
6994 sizeof(struct lpfc_sli4_cfg_mhdr);
6995 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6996 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
6997 LPFC_SLI4_MBX_EMBED);
6999 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
7000 mbox->u.mqe.un.set_host_data.param_len =
7001 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
7002 snprintf(mbox->u.mqe.un.set_host_data.data,
7003 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
7004 "Linux %s v"LPFC_DRIVER_VERSION,
7005 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
7009 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
7010 struct lpfc_queue *drq, int count, int idx)
7013 struct lpfc_rqe hrqe;
7014 struct lpfc_rqe drqe;
7015 struct lpfc_rqb *rqbp;
7016 unsigned long flags;
7017 struct rqb_dmabuf *rqb_buffer;
7018 LIST_HEAD(rqb_buf_list);
7020 spin_lock_irqsave(&phba->hbalock, flags);
7022 for (i = 0; i < count; i++) {
7023 /* IF RQ is already full, don't bother */
7024 if (rqbp->buffer_count + i >= rqbp->entry_count - 1)
7026 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
7029 rqb_buffer->hrq = hrq;
7030 rqb_buffer->drq = drq;
7031 rqb_buffer->idx = idx;
7032 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
7034 while (!list_empty(&rqb_buf_list)) {
7035 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
7038 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
7039 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
7040 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
7041 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
7042 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
7044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7045 "6421 Cannot post to HRQ %d: %x %x %x "
7053 rqbp->rqb_free_buffer(phba, rqb_buffer);
7055 list_add_tail(&rqb_buffer->hbuf.list,
7056 &rqbp->rqb_buffer_list);
7057 rqbp->buffer_count++;
7060 spin_unlock_irqrestore(&phba->hbalock, flags);
7065 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
7066 * @phba: Pointer to HBA context object.
7068 * This function is the main SLI4 device initialization PCI function. This
7069 * function is called by the HBA initialization code, HBA reset code and
7070 * HBA error attention handler code. Caller is not required to hold any
7074 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
7077 LPFC_MBOXQ_t *mboxq;
7078 struct lpfc_mqe *mqe;
7081 uint32_t ftr_rsp = 0;
7082 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
7083 struct lpfc_vport *vport = phba->pport;
7084 struct lpfc_dmabuf *mp;
7085 struct lpfc_rqb *rqbp;
7087 /* Perform a PCI function reset to start from clean */
7088 rc = lpfc_pci_function_reset(phba);
7092 /* Check the HBA Host Status Register for readyness */
7093 rc = lpfc_sli4_post_status_check(phba);
7097 spin_lock_irq(&phba->hbalock);
7098 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
7099 spin_unlock_irq(&phba->hbalock);
7103 * Allocate a single mailbox container for initializing the
7106 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7110 /* Issue READ_REV to collect vpd and FW information. */
7111 vpd_size = SLI4_PAGE_SIZE;
7112 vpd = kzalloc(vpd_size, GFP_KERNEL);
7118 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
7124 mqe = &mboxq->u.mqe;
7125 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
7126 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
7127 phba->hba_flag |= HBA_FCOE_MODE;
7128 phba->fcp_embed_io = 0; /* SLI4 FC support only */
7130 phba->hba_flag &= ~HBA_FCOE_MODE;
7133 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
7135 phba->hba_flag |= HBA_FIP_SUPPORT;
7137 phba->hba_flag &= ~HBA_FIP_SUPPORT;
7139 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
7141 if (phba->sli_rev != LPFC_SLI_REV4) {
7142 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7143 "0376 READ_REV Error. SLI Level %d "
7144 "FCoE enabled %d\n",
7145 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
7152 * Continue initialization with default values even if driver failed
7153 * to read FCoE param config regions, only read parameters if the
7156 if (phba->hba_flag & HBA_FCOE_MODE &&
7157 lpfc_sli4_read_fcoe_params(phba))
7158 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
7159 "2570 Failed to read FCoE parameters\n");
7162 * Retrieve sli4 device physical port name, failure of doing it
7163 * is considered as non-fatal.
7165 rc = lpfc_sli4_retrieve_pport_name(phba);
7167 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7168 "3080 Successful retrieving SLI4 device "
7169 "physical port name: %s.\n", phba->Port);
7172 * Evaluate the read rev and vpd data. Populate the driver
7173 * state with the results. If this routine fails, the failure
7174 * is not fatal as the driver will use generic values.
7176 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
7177 if (unlikely(!rc)) {
7178 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7179 "0377 Error %d parsing vpd. "
7180 "Using defaults.\n", rc);
7185 /* Save information as VPD data */
7186 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
7187 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
7190 * This is because first G7 ASIC doesn't support the standard
7191 * 0x5a NVME cmd descriptor type/subtype
7193 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7194 LPFC_SLI_INTF_IF_TYPE_6) &&
7195 (phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
7196 (phba->vpd.rev.smRev == 0) &&
7197 (phba->cfg_nvme_embed_cmd == 1))
7198 phba->cfg_nvme_embed_cmd = 0;
7200 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
7201 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
7203 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
7205 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
7207 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
7209 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
7210 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
7211 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
7212 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
7213 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
7214 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
7215 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7216 "(%d):0380 READ_REV Status x%x "
7217 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
7218 mboxq->vport ? mboxq->vport->vpi : 0,
7219 bf_get(lpfc_mqe_status, mqe),
7220 phba->vpd.rev.opFwName,
7221 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
7222 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
7224 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
7225 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
7226 if (phba->pport->cfg_lun_queue_depth > rc) {
7227 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7228 "3362 LUN queue depth changed from %d to %d\n",
7229 phba->pport->cfg_lun_queue_depth, rc);
7230 phba->pport->cfg_lun_queue_depth = rc;
7233 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7234 LPFC_SLI_INTF_IF_TYPE_0) {
7235 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
7236 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7237 if (rc == MBX_SUCCESS) {
7238 phba->hba_flag |= HBA_RECOVERABLE_UE;
7239 /* Set 1Sec interval to detect UE */
7240 phba->eratt_poll_interval = 1;
7241 phba->sli4_hba.ue_to_sr = bf_get(
7242 lpfc_mbx_set_feature_UESR,
7243 &mboxq->u.mqe.un.set_feature);
7244 phba->sli4_hba.ue_to_rp = bf_get(
7245 lpfc_mbx_set_feature_UERP,
7246 &mboxq->u.mqe.un.set_feature);
7250 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
7251 /* Enable MDS Diagnostics only if the SLI Port supports it */
7252 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
7253 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7254 if (rc != MBX_SUCCESS)
7255 phba->mds_diags_support = 0;
7259 * Discover the port's supported feature set and match it against the
7262 lpfc_request_features(phba, mboxq);
7263 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7270 * The port must support FCP initiator mode as this is the
7271 * only mode running in the host.
7273 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
7274 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7275 "0378 No support for fcpi mode.\n");
7279 /* Performance Hints are ONLY for FCoE */
7280 if (phba->hba_flag & HBA_FCOE_MODE) {
7281 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
7282 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
7284 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
7288 * If the port cannot support the host's requested features
7289 * then turn off the global config parameters to disable the
7290 * feature in the driver. This is not a fatal error.
7292 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
7293 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
7294 phba->cfg_enable_bg = 0;
7295 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
7300 if (phba->max_vpi && phba->cfg_enable_npiv &&
7301 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7305 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7306 "0379 Feature Mismatch Data: x%08x %08x "
7307 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
7308 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
7309 phba->cfg_enable_npiv, phba->max_vpi);
7310 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
7311 phba->cfg_enable_bg = 0;
7312 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7313 phba->cfg_enable_npiv = 0;
7316 /* These SLI3 features are assumed in SLI4 */
7317 spin_lock_irq(&phba->hbalock);
7318 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
7319 spin_unlock_irq(&phba->hbalock);
7322 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
7323 * calls depends on these resources to complete port setup.
7325 rc = lpfc_sli4_alloc_resource_identifiers(phba);
7327 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7328 "2920 Failed to alloc Resource IDs "
7333 lpfc_set_host_data(phba, mboxq);
7335 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7337 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7338 "2134 Failed to set host os driver version %x",
7342 /* Read the port's service parameters. */
7343 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
7345 phba->link_state = LPFC_HBA_ERROR;
7350 mboxq->vport = vport;
7351 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7352 mp = (struct lpfc_dmabuf *) mboxq->context1;
7353 if (rc == MBX_SUCCESS) {
7354 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
7359 * This memory was allocated by the lpfc_read_sparam routine. Release
7360 * it to the mbuf pool.
7362 lpfc_mbuf_free(phba, mp->virt, mp->phys);
7364 mboxq->context1 = NULL;
7366 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7367 "0382 READ_SPARAM command failed "
7368 "status %d, mbxStatus x%x\n",
7369 rc, bf_get(lpfc_mqe_status, mqe));
7370 phba->link_state = LPFC_HBA_ERROR;
7375 lpfc_update_vport_wwn(vport);
7377 /* Update the fc_host data structures with new wwn. */
7378 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
7379 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
7381 /* Create all the SLI4 queues */
7382 rc = lpfc_sli4_queue_create(phba);
7384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7385 "3089 Failed to allocate queues\n");
7389 /* Set up all the queues to the device */
7390 rc = lpfc_sli4_queue_setup(phba);
7392 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7393 "0381 Error %d during queue setup.\n ", rc);
7394 goto out_stop_timers;
7396 /* Initialize the driver internal SLI layer lists. */
7397 lpfc_sli4_setup(phba);
7398 lpfc_sli4_queue_init(phba);
7400 /* update host els xri-sgl sizes and mappings */
7401 rc = lpfc_sli4_els_sgl_update(phba);
7403 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7404 "1400 Failed to update xri-sgl size and "
7405 "mapping: %d\n", rc);
7406 goto out_destroy_queue;
7409 /* register the els sgl pool to the port */
7410 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
7411 phba->sli4_hba.els_xri_cnt);
7412 if (unlikely(rc < 0)) {
7413 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7414 "0582 Error %d during els sgl post "
7417 goto out_destroy_queue;
7419 phba->sli4_hba.els_xri_cnt = rc;
7421 if (phba->nvmet_support) {
7422 /* update host nvmet xri-sgl sizes and mappings */
7423 rc = lpfc_sli4_nvmet_sgl_update(phba);
7425 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7426 "6308 Failed to update nvmet-sgl size "
7427 "and mapping: %d\n", rc);
7428 goto out_destroy_queue;
7431 /* register the nvmet sgl pool to the port */
7432 rc = lpfc_sli4_repost_sgl_list(
7434 &phba->sli4_hba.lpfc_nvmet_sgl_list,
7435 phba->sli4_hba.nvmet_xri_cnt);
7436 if (unlikely(rc < 0)) {
7437 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7438 "3117 Error %d during nvmet "
7441 goto out_destroy_queue;
7443 phba->sli4_hba.nvmet_xri_cnt = rc;
7445 cnt = phba->cfg_iocb_cnt * 1024;
7446 /* We need 1 iocbq for every SGL, for IO processing */
7447 cnt += phba->sli4_hba.nvmet_xri_cnt;
7449 /* update host scsi xri-sgl sizes and mappings */
7450 rc = lpfc_sli4_scsi_sgl_update(phba);
7452 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7453 "6309 Failed to update scsi-sgl size "
7454 "and mapping: %d\n", rc);
7455 goto out_destroy_queue;
7458 /* update host nvme xri-sgl sizes and mappings */
7459 rc = lpfc_sli4_nvme_sgl_update(phba);
7461 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7462 "6082 Failed to update nvme-sgl size "
7463 "and mapping: %d\n", rc);
7464 goto out_destroy_queue;
7467 cnt = phba->cfg_iocb_cnt * 1024;
7470 if (!phba->sli.iocbq_lookup) {
7471 /* Initialize and populate the iocb list per host */
7472 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7473 "2821 initialize iocb list %d total %d\n",
7474 phba->cfg_iocb_cnt, cnt);
7475 rc = lpfc_init_iocb_list(phba, cnt);
7477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7478 "1413 Failed to init iocb list.\n");
7479 goto out_destroy_queue;
7483 if (phba->nvmet_support)
7484 lpfc_nvmet_create_targetport(phba);
7486 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
7487 /* Post initial buffers to all RQs created */
7488 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
7489 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
7490 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
7491 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
7492 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
7493 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
7494 rqbp->buffer_count = 0;
7496 lpfc_post_rq_buffer(
7497 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
7498 phba->sli4_hba.nvmet_mrq_data[i],
7499 phba->cfg_nvmet_mrq_post, i);
7503 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
7504 /* register the allocated scsi sgl pool to the port */
7505 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
7507 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7508 "0383 Error %d during scsi sgl post "
7510 /* Some Scsi buffers were moved to abort scsi list */
7511 /* A pci function reset will repost them */
7513 goto out_destroy_queue;
7517 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
7518 (phba->nvmet_support == 0)) {
7520 /* register the allocated nvme sgl pool to the port */
7521 rc = lpfc_repost_nvme_sgl_list(phba);
7523 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7524 "6116 Error %d during nvme sgl post "
7526 /* Some NVME buffers were moved to abort nvme list */
7527 /* A pci function reset will repost them */
7529 goto out_destroy_queue;
7533 /* Post the rpi header region to the device. */
7534 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7536 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7537 "0393 Error %d during rpi post operation\n",
7540 goto out_destroy_queue;
7542 lpfc_sli4_node_prep(phba);
7544 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
7545 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
7547 * The FC Port needs to register FCFI (index 0)
7549 lpfc_reg_fcfi(phba, mboxq);
7550 mboxq->vport = phba->pport;
7551 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7552 if (rc != MBX_SUCCESS)
7553 goto out_unset_queue;
7555 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7556 &mboxq->u.mqe.un.reg_fcfi);
7558 /* We are a NVME Target mode with MRQ > 1 */
7560 /* First register the FCFI */
7561 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7562 mboxq->vport = phba->pport;
7563 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7564 if (rc != MBX_SUCCESS)
7565 goto out_unset_queue;
7567 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7568 &mboxq->u.mqe.un.reg_fcfi_mrq);
7570 /* Next register the MRQs */
7571 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7572 mboxq->vport = phba->pport;
7573 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7574 if (rc != MBX_SUCCESS)
7575 goto out_unset_queue;
7578 /* Check if the port is configured to be disabled */
7579 lpfc_sli_read_link_ste(phba);
7582 /* Arm the CQs and then EQs on device */
7583 lpfc_sli4_arm_cqeq_intr(phba);
7585 /* Indicate device interrupt mode */
7586 phba->sli4_hba.intr_enable = 1;
7588 /* Allow asynchronous mailbox command to go through */
7589 spin_lock_irq(&phba->hbalock);
7590 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7591 spin_unlock_irq(&phba->hbalock);
7593 /* Post receive buffers to the device */
7594 lpfc_sli4_rb_setup(phba);
7596 /* Reset HBA FCF states after HBA reset */
7597 phba->fcf.fcf_flag = 0;
7598 phba->fcf.current_rec.flag = 0;
7600 /* Start the ELS watchdog timer */
7601 mod_timer(&vport->els_tmofunc,
7602 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
7604 /* Start heart beat timer */
7605 mod_timer(&phba->hb_tmofunc,
7606 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
7607 phba->hb_outstanding = 0;
7608 phba->last_completion_time = jiffies;
7610 /* Start error attention (ERATT) polling timer */
7611 mod_timer(&phba->eratt_poll,
7612 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
7614 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7615 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7616 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7618 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7619 "2829 This device supports "
7620 "Advanced Error Reporting (AER)\n");
7621 spin_lock_irq(&phba->hbalock);
7622 phba->hba_flag |= HBA_AER_ENABLED;
7623 spin_unlock_irq(&phba->hbalock);
7625 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7626 "2830 This device does not support "
7627 "Advanced Error Reporting (AER)\n");
7628 phba->cfg_aer_support = 0;
7634 * The port is ready, set the host's link state to LINK_DOWN
7635 * in preparation for link interrupts.
7637 spin_lock_irq(&phba->hbalock);
7638 phba->link_state = LPFC_LINK_DOWN;
7639 spin_unlock_irq(&phba->hbalock);
7640 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7641 (phba->hba_flag & LINK_DISABLED)) {
7642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7643 "3103 Adapter Link is disabled.\n");
7644 lpfc_down_link(phba, mboxq);
7645 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7646 if (rc != MBX_SUCCESS) {
7647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7648 "3104 Adapter failed to issue "
7649 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7650 goto out_unset_queue;
7652 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
7653 /* don't perform init_link on SLI4 FC port loopback test */
7654 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7655 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7657 goto out_unset_queue;
7660 mempool_free(mboxq, phba->mbox_mem_pool);
7663 /* Unset all the queues set up in this routine when error out */
7664 lpfc_sli4_queue_unset(phba);
7666 lpfc_free_iocb_list(phba);
7667 lpfc_sli4_queue_destroy(phba);
7669 lpfc_stop_hba_timers(phba);
7671 mempool_free(mboxq, phba->mbox_mem_pool);
7676 * lpfc_mbox_timeout - Timeout call back function for mbox timer
7677 * @ptr: context object - pointer to hba structure.
7679 * This is the callback function for mailbox timer. The mailbox
7680 * timer is armed when a new mailbox command is issued and the timer
7681 * is deleted when the mailbox complete. The function is called by
7682 * the kernel timer code when a mailbox does not complete within
7683 * expected time. This function wakes up the worker thread to
7684 * process the mailbox timeout and returns. All the processing is
7685 * done by the worker thread function lpfc_mbox_timeout_handler.
7688 lpfc_mbox_timeout(struct timer_list *t)
7690 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
7691 unsigned long iflag;
7692 uint32_t tmo_posted;
7694 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
7695 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
7697 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7698 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7701 lpfc_worker_wake_up(phba);
7706 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7708 * @phba: Pointer to HBA context object.
7710 * This function checks if any mailbox completions are present on the mailbox
7714 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7718 struct lpfc_queue *mcq;
7719 struct lpfc_mcqe *mcqe;
7720 bool pending_completions = false;
7723 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7726 /* Check for completions on mailbox completion queue */
7728 mcq = phba->sli4_hba.mbx_cq;
7729 idx = mcq->hba_index;
7730 qe_valid = mcq->qe_valid;
7731 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe) == qe_valid) {
7732 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
7733 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7734 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7735 pending_completions = true;
7738 idx = (idx + 1) % mcq->entry_count;
7739 if (mcq->hba_index == idx)
7742 /* if the index wrapped around, toggle the valid bit */
7743 if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
7744 qe_valid = (qe_valid) ? 0 : 1;
7746 return pending_completions;
7751 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7753 * @phba: Pointer to HBA context object.
7755 * For sli4, it is possible to miss an interrupt. As such mbox completions
7756 * maybe missed causing erroneous mailbox timeouts to occur. This function
7757 * checks to see if mbox completions are on the mailbox completion queue
7758 * and will process all the completions associated with the eq for the
7759 * mailbox completion queue.
7762 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7764 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
7766 struct lpfc_queue *fpeq = NULL;
7767 struct lpfc_eqe *eqe;
7770 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7773 /* Find the eq associated with the mcq */
7775 if (sli4_hba->hba_eq)
7776 for (eqidx = 0; eqidx < phba->io_channel_irqs; eqidx++)
7777 if (sli4_hba->hba_eq[eqidx]->queue_id ==
7778 sli4_hba->mbx_cq->assoc_qid) {
7779 fpeq = sli4_hba->hba_eq[eqidx];
7785 /* Turn off interrupts from this EQ */
7787 sli4_hba->sli4_eq_clr_intr(fpeq);
7789 /* Check to see if a mbox completion is pending */
7791 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7794 * If a mbox completion is pending, process all the events on EQ
7795 * associated with the mbox completion queue (this could include
7796 * mailbox commands, async events, els commands, receive queue data
7801 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
7802 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
7803 fpeq->EQ_processed++;
7806 /* Always clear and re-arm the EQ */
7808 sli4_hba->sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
7810 return mbox_pending;
7815 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
7816 * @phba: Pointer to HBA context object.
7818 * This function is called from worker thread when a mailbox command times out.
7819 * The caller is not required to hold any locks. This function will reset the
7820 * HBA and recover all the pending commands.
7823 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7825 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
7826 MAILBOX_t *mb = NULL;
7828 struct lpfc_sli *psli = &phba->sli;
7830 /* If the mailbox completed, process the completion and return */
7831 if (lpfc_sli4_process_missed_mbox_completions(phba))
7836 /* Check the pmbox pointer first. There is a race condition
7837 * between the mbox timeout handler getting executed in the
7838 * worklist and the mailbox actually completing. When this
7839 * race condition occurs, the mbox_active will be NULL.
7841 spin_lock_irq(&phba->hbalock);
7842 if (pmbox == NULL) {
7843 lpfc_printf_log(phba, KERN_WARNING,
7845 "0353 Active Mailbox cleared - mailbox timeout "
7847 spin_unlock_irq(&phba->hbalock);
7851 /* Mbox cmd <mbxCommand> timeout */
7852 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7853 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
7855 phba->pport->port_state,
7857 phba->sli.mbox_active);
7858 spin_unlock_irq(&phba->hbalock);
7860 /* Setting state unknown so lpfc_sli_abort_iocb_ring
7861 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
7862 * it to fail all outstanding SCSI IO.
7864 spin_lock_irq(&phba->pport->work_port_lock);
7865 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
7866 spin_unlock_irq(&phba->pport->work_port_lock);
7867 spin_lock_irq(&phba->hbalock);
7868 phba->link_state = LPFC_LINK_UNKNOWN;
7869 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7870 spin_unlock_irq(&phba->hbalock);
7872 lpfc_sli_abort_fcp_rings(phba);
7874 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7875 "0345 Resetting board due to mailbox timeout\n");
7877 /* Reset the HBA device */
7878 lpfc_reset_hba(phba);
7882 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
7883 * @phba: Pointer to HBA context object.
7884 * @pmbox: Pointer to mailbox object.
7885 * @flag: Flag indicating how the mailbox need to be processed.
7887 * This function is called by discovery code and HBA management code
7888 * to submit a mailbox command to firmware with SLI-3 interface spec. This
7889 * function gets the hbalock to protect the data structures.
7890 * The mailbox command can be submitted in polling mode, in which case
7891 * this function will wait in a polling loop for the completion of the
7893 * If the mailbox is submitted in no_wait mode (not polling) the
7894 * function will submit the command and returns immediately without waiting
7895 * for the mailbox completion. The no_wait is supported only when HBA
7896 * is in SLI2/SLI3 mode - interrupts are enabled.
7897 * The SLI interface allows only one mailbox pending at a time. If the
7898 * mailbox is issued in polling mode and there is already a mailbox
7899 * pending, then the function will return an error. If the mailbox is issued
7900 * in NO_WAIT mode and there is a mailbox pending already, the function
7901 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
7902 * The sli layer owns the mailbox object until the completion of mailbox
7903 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
7904 * return codes the caller owns the mailbox command after the return of
7908 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
7912 struct lpfc_sli *psli = &phba->sli;
7913 uint32_t status, evtctr;
7914 uint32_t ha_copy, hc_copy;
7916 unsigned long timeout;
7917 unsigned long drvr_flag = 0;
7918 uint32_t word0, ldata;
7919 void __iomem *to_slim;
7920 int processing_queue = 0;
7922 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7924 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7925 /* processing mbox queue from intr_handler */
7926 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7927 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7930 processing_queue = 1;
7931 pmbox = lpfc_mbox_get(phba);
7933 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7938 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
7939 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
7941 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7942 lpfc_printf_log(phba, KERN_ERR,
7943 LOG_MBOX | LOG_VPORT,
7944 "1806 Mbox x%x failed. No vport\n",
7945 pmbox->u.mb.mbxCommand);
7947 goto out_not_finished;
7951 /* If the PCI channel is in offline state, do not post mbox. */
7952 if (unlikely(pci_channel_offline(phba->pcidev))) {
7953 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7954 goto out_not_finished;
7957 /* If HBA has a deferred error attention, fail the iocb. */
7958 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7959 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7960 goto out_not_finished;
7966 status = MBX_SUCCESS;
7968 if (phba->link_state == LPFC_HBA_ERROR) {
7969 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7971 /* Mbox command <mbxCommand> cannot issue */
7972 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7973 "(%d):0311 Mailbox command x%x cannot "
7974 "issue Data: x%x x%x\n",
7975 pmbox->vport ? pmbox->vport->vpi : 0,
7976 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7977 goto out_not_finished;
7980 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
7981 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
7982 !(hc_copy & HC_MBINT_ENA)) {
7983 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7984 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7985 "(%d):2528 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;
7993 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7994 /* Polling for a mbox command when another one is already active
7995 * is not allowed in SLI. Also, the driver must have established
7996 * SLI2 mode to queue and process multiple mbox commands.
7999 if (flag & MBX_POLL) {
8000 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8002 /* Mbox command <mbxCommand> cannot issue */
8003 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8004 "(%d):2529 Mailbox command x%x "
8005 "cannot issue Data: x%x x%x\n",
8006 pmbox->vport ? pmbox->vport->vpi : 0,
8007 pmbox->u.mb.mbxCommand,
8008 psli->sli_flag, flag);
8009 goto out_not_finished;
8012 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
8013 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):2530 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 /* Another mailbox command is still being processed, queue this
8025 * command to be processed later.
8027 lpfc_mbox_put(phba, pmbox);
8029 /* Mbox cmd issue - BUSY */
8030 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8031 "(%d):0308 Mbox cmd issue - BUSY Data: "
8032 "x%x x%x x%x x%x\n",
8033 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
8035 phba->pport ? phba->pport->port_state : 0xff,
8036 psli->sli_flag, flag);
8038 psli->slistat.mbox_busy++;
8039 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8042 lpfc_debugfs_disc_trc(pmbox->vport,
8043 LPFC_DISC_TRC_MBOX_VPORT,
8044 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
8045 (uint32_t)mbx->mbxCommand,
8046 mbx->un.varWords[0], mbx->un.varWords[1]);
8049 lpfc_debugfs_disc_trc(phba->pport,
8051 "MBOX Bsy: cmd:x%x mb:x%x x%x",
8052 (uint32_t)mbx->mbxCommand,
8053 mbx->un.varWords[0], mbx->un.varWords[1]);
8059 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8061 /* If we are not polling, we MUST be in SLI2 mode */
8062 if (flag != MBX_POLL) {
8063 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
8064 (mbx->mbxCommand != MBX_KILL_BOARD)) {
8065 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8066 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8067 /* Mbox command <mbxCommand> cannot issue */
8068 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8069 "(%d):2531 Mailbox command x%x "
8070 "cannot issue Data: x%x x%x\n",
8071 pmbox->vport ? pmbox->vport->vpi : 0,
8072 pmbox->u.mb.mbxCommand,
8073 psli->sli_flag, flag);
8074 goto out_not_finished;
8076 /* timeout active mbox command */
8077 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8079 mod_timer(&psli->mbox_tmo, jiffies + timeout);
8082 /* Mailbox cmd <cmd> issue */
8083 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8084 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
8086 pmbox->vport ? pmbox->vport->vpi : 0,
8088 phba->pport ? phba->pport->port_state : 0xff,
8089 psli->sli_flag, flag);
8091 if (mbx->mbxCommand != MBX_HEARTBEAT) {
8093 lpfc_debugfs_disc_trc(pmbox->vport,
8094 LPFC_DISC_TRC_MBOX_VPORT,
8095 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8096 (uint32_t)mbx->mbxCommand,
8097 mbx->un.varWords[0], mbx->un.varWords[1]);
8100 lpfc_debugfs_disc_trc(phba->pport,
8102 "MBOX Send: cmd:x%x mb:x%x x%x",
8103 (uint32_t)mbx->mbxCommand,
8104 mbx->un.varWords[0], mbx->un.varWords[1]);
8108 psli->slistat.mbox_cmd++;
8109 evtctr = psli->slistat.mbox_event;
8111 /* next set own bit for the adapter and copy over command word */
8112 mbx->mbxOwner = OWN_CHIP;
8114 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8115 /* Populate mbox extension offset word. */
8116 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
8117 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8118 = (uint8_t *)phba->mbox_ext
8119 - (uint8_t *)phba->mbox;
8122 /* Copy the mailbox extension data */
8123 if (pmbox->in_ext_byte_len && pmbox->context2) {
8124 lpfc_sli_pcimem_bcopy(pmbox->context2,
8125 (uint8_t *)phba->mbox_ext,
8126 pmbox->in_ext_byte_len);
8128 /* Copy command data to host SLIM area */
8129 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
8131 /* Populate mbox extension offset word. */
8132 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
8133 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8134 = MAILBOX_HBA_EXT_OFFSET;
8136 /* Copy the mailbox extension data */
8137 if (pmbox->in_ext_byte_len && pmbox->context2)
8138 lpfc_memcpy_to_slim(phba->MBslimaddr +
8139 MAILBOX_HBA_EXT_OFFSET,
8140 pmbox->context2, pmbox->in_ext_byte_len);
8142 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8143 /* copy command data into host mbox for cmpl */
8144 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
8147 /* First copy mbox command data to HBA SLIM, skip past first
8149 to_slim = phba->MBslimaddr + sizeof (uint32_t);
8150 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
8151 MAILBOX_CMD_SIZE - sizeof (uint32_t));
8153 /* Next copy over first word, with mbxOwner set */
8154 ldata = *((uint32_t *)mbx);
8155 to_slim = phba->MBslimaddr;
8156 writel(ldata, to_slim);
8157 readl(to_slim); /* flush */
8159 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8160 /* switch over to host mailbox */
8161 psli->sli_flag |= LPFC_SLI_ACTIVE;
8168 /* Set up reference to mailbox command */
8169 psli->mbox_active = pmbox;
8170 /* Interrupt board to do it */
8171 writel(CA_MBATT, phba->CAregaddr);
8172 readl(phba->CAregaddr); /* flush */
8173 /* Don't wait for it to finish, just return */
8177 /* Set up null reference to mailbox command */
8178 psli->mbox_active = NULL;
8179 /* Interrupt board to do it */
8180 writel(CA_MBATT, phba->CAregaddr);
8181 readl(phba->CAregaddr); /* flush */
8183 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8184 /* First read mbox status word */
8185 word0 = *((uint32_t *)phba->mbox);
8186 word0 = le32_to_cpu(word0);
8188 /* First read mbox status word */
8189 if (lpfc_readl(phba->MBslimaddr, &word0)) {
8190 spin_unlock_irqrestore(&phba->hbalock,
8192 goto out_not_finished;
8196 /* Read the HBA Host Attention Register */
8197 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8198 spin_unlock_irqrestore(&phba->hbalock,
8200 goto out_not_finished;
8202 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8205 /* Wait for command to complete */
8206 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
8207 (!(ha_copy & HA_MBATT) &&
8208 (phba->link_state > LPFC_WARM_START))) {
8209 if (time_after(jiffies, timeout)) {
8210 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8211 spin_unlock_irqrestore(&phba->hbalock,
8213 goto out_not_finished;
8216 /* Check if we took a mbox interrupt while we were
8218 if (((word0 & OWN_CHIP) != OWN_CHIP)
8219 && (evtctr != psli->slistat.mbox_event))
8223 spin_unlock_irqrestore(&phba->hbalock,
8226 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8229 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8230 /* First copy command data */
8231 word0 = *((uint32_t *)phba->mbox);
8232 word0 = le32_to_cpu(word0);
8233 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
8236 /* Check real SLIM for any errors */
8237 slimword0 = readl(phba->MBslimaddr);
8238 slimmb = (MAILBOX_t *) & slimword0;
8239 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
8240 && slimmb->mbxStatus) {
8247 /* First copy command data */
8248 word0 = readl(phba->MBslimaddr);
8250 /* Read the HBA Host Attention Register */
8251 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8252 spin_unlock_irqrestore(&phba->hbalock,
8254 goto out_not_finished;
8258 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8259 /* copy results back to user */
8260 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
8262 /* Copy the mailbox extension data */
8263 if (pmbox->out_ext_byte_len && pmbox->context2) {
8264 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
8266 pmbox->out_ext_byte_len);
8269 /* First copy command data */
8270 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
8272 /* Copy the mailbox extension data */
8273 if (pmbox->out_ext_byte_len && pmbox->context2) {
8274 lpfc_memcpy_from_slim(pmbox->context2,
8276 MAILBOX_HBA_EXT_OFFSET,
8277 pmbox->out_ext_byte_len);
8281 writel(HA_MBATT, phba->HAregaddr);
8282 readl(phba->HAregaddr); /* flush */
8284 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8285 status = mbx->mbxStatus;
8288 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8292 if (processing_queue) {
8293 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
8294 lpfc_mbox_cmpl_put(phba, pmbox);
8296 return MBX_NOT_FINISHED;
8300 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
8301 * @phba: Pointer to HBA context object.
8303 * The function blocks the posting of SLI4 asynchronous mailbox commands from
8304 * the driver internal pending mailbox queue. It will then try to wait out the
8305 * possible outstanding mailbox command before return.
8308 * 0 - the outstanding mailbox command completed; otherwise, the wait for
8309 * the outstanding mailbox command timed out.
8312 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
8314 struct lpfc_sli *psli = &phba->sli;
8316 unsigned long timeout = 0;
8318 /* Mark the asynchronous mailbox command posting as blocked */
8319 spin_lock_irq(&phba->hbalock);
8320 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8321 /* Determine how long we might wait for the active mailbox
8322 * command to be gracefully completed by firmware.
8324 if (phba->sli.mbox_active)
8325 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
8326 phba->sli.mbox_active) *
8328 spin_unlock_irq(&phba->hbalock);
8330 /* Make sure the mailbox is really active */
8332 lpfc_sli4_process_missed_mbox_completions(phba);
8334 /* Wait for the outstnading mailbox command to complete */
8335 while (phba->sli.mbox_active) {
8336 /* Check active mailbox complete status every 2ms */
8338 if (time_after(jiffies, timeout)) {
8339 /* Timeout, marked the outstanding cmd not complete */
8345 /* Can not cleanly block async mailbox command, fails it */
8347 spin_lock_irq(&phba->hbalock);
8348 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8349 spin_unlock_irq(&phba->hbalock);
8355 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
8356 * @phba: Pointer to HBA context object.
8358 * The function unblocks and resume posting of SLI4 asynchronous mailbox
8359 * commands from the driver internal pending mailbox queue. It makes sure
8360 * that there is no outstanding mailbox command before resuming posting
8361 * asynchronous mailbox commands. If, for any reason, there is outstanding
8362 * mailbox command, it will try to wait it out before resuming asynchronous
8363 * mailbox command posting.
8366 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
8368 struct lpfc_sli *psli = &phba->sli;
8370 spin_lock_irq(&phba->hbalock);
8371 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8372 /* Asynchronous mailbox posting is not blocked, do nothing */
8373 spin_unlock_irq(&phba->hbalock);
8377 /* Outstanding synchronous mailbox command is guaranteed to be done,
8378 * successful or timeout, after timing-out the outstanding mailbox
8379 * command shall always be removed, so just unblock posting async
8380 * mailbox command and resume
8382 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8383 spin_unlock_irq(&phba->hbalock);
8385 /* wake up worker thread to post asynchronlous mailbox command */
8386 lpfc_worker_wake_up(phba);
8390 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
8391 * @phba: Pointer to HBA context object.
8392 * @mboxq: Pointer to mailbox object.
8394 * The function waits for the bootstrap mailbox register ready bit from
8395 * port for twice the regular mailbox command timeout value.
8397 * 0 - no timeout on waiting for bootstrap mailbox register ready.
8398 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
8401 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8404 unsigned long timeout;
8405 struct lpfc_register bmbx_reg;
8407 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
8411 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
8412 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
8416 if (time_after(jiffies, timeout))
8417 return MBXERR_ERROR;
8418 } while (!db_ready);
8424 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
8425 * @phba: Pointer to HBA context object.
8426 * @mboxq: Pointer to mailbox object.
8428 * The function posts a mailbox to the port. The mailbox is expected
8429 * to be comletely filled in and ready for the port to operate on it.
8430 * This routine executes a synchronous completion operation on the
8431 * mailbox by polling for its completion.
8433 * The caller must not be holding any locks when calling this routine.
8436 * MBX_SUCCESS - mailbox posted successfully
8437 * Any of the MBX error values.
8440 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8442 int rc = MBX_SUCCESS;
8443 unsigned long iflag;
8444 uint32_t mcqe_status;
8446 struct lpfc_sli *psli = &phba->sli;
8447 struct lpfc_mqe *mb = &mboxq->u.mqe;
8448 struct lpfc_bmbx_create *mbox_rgn;
8449 struct dma_address *dma_address;
8452 * Only one mailbox can be active to the bootstrap mailbox region
8453 * at a time and there is no queueing provided.
8455 spin_lock_irqsave(&phba->hbalock, iflag);
8456 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8457 spin_unlock_irqrestore(&phba->hbalock, iflag);
8458 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8459 "(%d):2532 Mailbox command x%x (x%x/x%x) "
8460 "cannot issue Data: x%x x%x\n",
8461 mboxq->vport ? mboxq->vport->vpi : 0,
8462 mboxq->u.mb.mbxCommand,
8463 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8464 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8465 psli->sli_flag, MBX_POLL);
8466 return MBXERR_ERROR;
8468 /* The server grabs the token and owns it until release */
8469 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8470 phba->sli.mbox_active = mboxq;
8471 spin_unlock_irqrestore(&phba->hbalock, iflag);
8473 /* wait for bootstrap mbox register for readyness */
8474 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8479 * Initialize the bootstrap memory region to avoid stale data areas
8480 * in the mailbox post. Then copy the caller's mailbox contents to
8481 * the bmbx mailbox region.
8483 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
8484 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
8485 lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
8486 sizeof(struct lpfc_mqe));
8488 /* Post the high mailbox dma address to the port and wait for ready. */
8489 dma_address = &phba->sli4_hba.bmbx.dma_address;
8490 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
8492 /* wait for bootstrap mbox register for hi-address write done */
8493 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8497 /* Post the low mailbox dma address to the port. */
8498 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
8500 /* wait for bootstrap mbox register for low address write done */
8501 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8506 * Read the CQ to ensure the mailbox has completed.
8507 * If so, update the mailbox status so that the upper layers
8508 * can complete the request normally.
8510 lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
8511 sizeof(struct lpfc_mqe));
8512 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
8513 lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
8514 sizeof(struct lpfc_mcqe));
8515 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
8517 * When the CQE status indicates a failure and the mailbox status
8518 * indicates success then copy the CQE status into the mailbox status
8519 * (and prefix it with x4000).
8521 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
8522 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
8523 bf_set(lpfc_mqe_status, mb,
8524 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8527 lpfc_sli4_swap_str(phba, mboxq);
8529 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8530 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
8531 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8532 " x%x x%x CQ: x%x x%x x%x x%x\n",
8533 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8534 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8535 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8536 bf_get(lpfc_mqe_status, mb),
8537 mb->un.mb_words[0], mb->un.mb_words[1],
8538 mb->un.mb_words[2], mb->un.mb_words[3],
8539 mb->un.mb_words[4], mb->un.mb_words[5],
8540 mb->un.mb_words[6], mb->un.mb_words[7],
8541 mb->un.mb_words[8], mb->un.mb_words[9],
8542 mb->un.mb_words[10], mb->un.mb_words[11],
8543 mb->un.mb_words[12], mboxq->mcqe.word0,
8544 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
8545 mboxq->mcqe.trailer);
8547 /* We are holding the token, no needed for lock when release */
8548 spin_lock_irqsave(&phba->hbalock, iflag);
8549 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8550 phba->sli.mbox_active = NULL;
8551 spin_unlock_irqrestore(&phba->hbalock, iflag);
8556 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
8557 * @phba: Pointer to HBA context object.
8558 * @pmbox: Pointer to mailbox object.
8559 * @flag: Flag indicating how the mailbox need to be processed.
8561 * This function is called by discovery code and HBA management code to submit
8562 * a mailbox command to firmware with SLI-4 interface spec.
8564 * Return codes the caller owns the mailbox command after the return of the
8568 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
8571 struct lpfc_sli *psli = &phba->sli;
8572 unsigned long iflags;
8575 /* dump from issue mailbox command if setup */
8576 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
8578 rc = lpfc_mbox_dev_check(phba);
8580 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8581 "(%d):2544 Mailbox command x%x (x%x/x%x) "
8582 "cannot issue Data: x%x x%x\n",
8583 mboxq->vport ? mboxq->vport->vpi : 0,
8584 mboxq->u.mb.mbxCommand,
8585 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8586 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8587 psli->sli_flag, flag);
8588 goto out_not_finished;
8591 /* Detect polling mode and jump to a handler */
8592 if (!phba->sli4_hba.intr_enable) {
8593 if (flag == MBX_POLL)
8594 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8597 if (rc != MBX_SUCCESS)
8598 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8599 "(%d):2541 Mailbox command x%x "
8600 "(x%x/x%x) failure: "
8601 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8603 mboxq->vport ? mboxq->vport->vpi : 0,
8604 mboxq->u.mb.mbxCommand,
8605 lpfc_sli_config_mbox_subsys_get(phba,
8607 lpfc_sli_config_mbox_opcode_get(phba,
8609 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8610 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8611 bf_get(lpfc_mcqe_ext_status,
8613 psli->sli_flag, flag);
8615 } else if (flag == MBX_POLL) {
8616 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8617 "(%d):2542 Try to issue mailbox command "
8618 "x%x (x%x/x%x) synchronously ahead of async "
8619 "mailbox command queue: x%x x%x\n",
8620 mboxq->vport ? mboxq->vport->vpi : 0,
8621 mboxq->u.mb.mbxCommand,
8622 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8623 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8624 psli->sli_flag, flag);
8625 /* Try to block the asynchronous mailbox posting */
8626 rc = lpfc_sli4_async_mbox_block(phba);
8628 /* Successfully blocked, now issue sync mbox cmd */
8629 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8630 if (rc != MBX_SUCCESS)
8631 lpfc_printf_log(phba, KERN_WARNING,
8633 "(%d):2597 Sync Mailbox command "
8634 "x%x (x%x/x%x) failure: "
8635 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8637 mboxq->vport ? mboxq->vport->vpi : 0,
8638 mboxq->u.mb.mbxCommand,
8639 lpfc_sli_config_mbox_subsys_get(phba,
8641 lpfc_sli_config_mbox_opcode_get(phba,
8643 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8644 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8645 bf_get(lpfc_mcqe_ext_status,
8647 psli->sli_flag, flag);
8648 /* Unblock the async mailbox posting afterward */
8649 lpfc_sli4_async_mbox_unblock(phba);
8654 /* Now, interrupt mode asynchrous mailbox command */
8655 rc = lpfc_mbox_cmd_check(phba, mboxq);
8657 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8658 "(%d):2543 Mailbox command x%x (x%x/x%x) "
8659 "cannot issue Data: x%x x%x\n",
8660 mboxq->vport ? mboxq->vport->vpi : 0,
8661 mboxq->u.mb.mbxCommand,
8662 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8663 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8664 psli->sli_flag, flag);
8665 goto out_not_finished;
8668 /* Put the mailbox command to the driver internal FIFO */
8669 psli->slistat.mbox_busy++;
8670 spin_lock_irqsave(&phba->hbalock, iflags);
8671 lpfc_mbox_put(phba, mboxq);
8672 spin_unlock_irqrestore(&phba->hbalock, iflags);
8673 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8674 "(%d):0354 Mbox cmd issue - Enqueue Data: "
8675 "x%x (x%x/x%x) x%x x%x x%x\n",
8676 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8677 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8678 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8679 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8680 phba->pport->port_state,
8681 psli->sli_flag, MBX_NOWAIT);
8682 /* Wake up worker thread to transport mailbox command from head */
8683 lpfc_worker_wake_up(phba);
8688 return MBX_NOT_FINISHED;
8692 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8693 * @phba: Pointer to HBA context object.
8695 * This function is called by worker thread to send a mailbox command to
8696 * SLI4 HBA firmware.
8700 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8702 struct lpfc_sli *psli = &phba->sli;
8703 LPFC_MBOXQ_t *mboxq;
8704 int rc = MBX_SUCCESS;
8705 unsigned long iflags;
8706 struct lpfc_mqe *mqe;
8709 /* Check interrupt mode before post async mailbox command */
8710 if (unlikely(!phba->sli4_hba.intr_enable))
8711 return MBX_NOT_FINISHED;
8713 /* Check for mailbox command service token */
8714 spin_lock_irqsave(&phba->hbalock, iflags);
8715 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8716 spin_unlock_irqrestore(&phba->hbalock, iflags);
8717 return MBX_NOT_FINISHED;
8719 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8720 spin_unlock_irqrestore(&phba->hbalock, iflags);
8721 return MBX_NOT_FINISHED;
8723 if (unlikely(phba->sli.mbox_active)) {
8724 spin_unlock_irqrestore(&phba->hbalock, iflags);
8725 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8726 "0384 There is pending active mailbox cmd\n");
8727 return MBX_NOT_FINISHED;
8729 /* Take the mailbox command service token */
8730 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8732 /* Get the next mailbox command from head of queue */
8733 mboxq = lpfc_mbox_get(phba);
8735 /* If no more mailbox command waiting for post, we're done */
8737 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8738 spin_unlock_irqrestore(&phba->hbalock, iflags);
8741 phba->sli.mbox_active = mboxq;
8742 spin_unlock_irqrestore(&phba->hbalock, iflags);
8744 /* Check device readiness for posting mailbox command */
8745 rc = lpfc_mbox_dev_check(phba);
8747 /* Driver clean routine will clean up pending mailbox */
8748 goto out_not_finished;
8750 /* Prepare the mbox command to be posted */
8751 mqe = &mboxq->u.mqe;
8752 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8754 /* Start timer for the mbox_tmo and log some mailbox post messages */
8755 mod_timer(&psli->mbox_tmo, (jiffies +
8756 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
8758 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8759 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
8761 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8762 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8763 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8764 phba->pport->port_state, psli->sli_flag);
8766 if (mbx_cmnd != MBX_HEARTBEAT) {
8768 lpfc_debugfs_disc_trc(mboxq->vport,
8769 LPFC_DISC_TRC_MBOX_VPORT,
8770 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8771 mbx_cmnd, mqe->un.mb_words[0],
8772 mqe->un.mb_words[1]);
8774 lpfc_debugfs_disc_trc(phba->pport,
8776 "MBOX Send: cmd:x%x mb:x%x x%x",
8777 mbx_cmnd, mqe->un.mb_words[0],
8778 mqe->un.mb_words[1]);
8781 psli->slistat.mbox_cmd++;
8783 /* Post the mailbox command to the port */
8784 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8785 if (rc != MBX_SUCCESS) {
8786 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8787 "(%d):2533 Mailbox command x%x (x%x/x%x) "
8788 "cannot issue Data: x%x x%x\n",
8789 mboxq->vport ? mboxq->vport->vpi : 0,
8790 mboxq->u.mb.mbxCommand,
8791 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8792 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8793 psli->sli_flag, MBX_NOWAIT);
8794 goto out_not_finished;
8800 spin_lock_irqsave(&phba->hbalock, iflags);
8801 if (phba->sli.mbox_active) {
8802 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8803 __lpfc_mbox_cmpl_put(phba, mboxq);
8804 /* Release the token */
8805 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8806 phba->sli.mbox_active = NULL;
8808 spin_unlock_irqrestore(&phba->hbalock, iflags);
8810 return MBX_NOT_FINISHED;
8814 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8815 * @phba: Pointer to HBA context object.
8816 * @pmbox: Pointer to mailbox object.
8817 * @flag: Flag indicating how the mailbox need to be processed.
8819 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8820 * the API jump table function pointer from the lpfc_hba struct.
8822 * Return codes the caller owns the mailbox command after the return of the
8826 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
8828 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
8832 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
8833 * @phba: The hba struct for which this call is being executed.
8834 * @dev_grp: The HBA PCI-Device group number.
8836 * This routine sets up the mbox interface API function jump table in @phba
8838 * Returns: 0 - success, -ENODEV - failure.
8841 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8845 case LPFC_PCI_DEV_LP:
8846 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
8847 phba->lpfc_sli_handle_slow_ring_event =
8848 lpfc_sli_handle_slow_ring_event_s3;
8849 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
8850 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
8851 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
8853 case LPFC_PCI_DEV_OC:
8854 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
8855 phba->lpfc_sli_handle_slow_ring_event =
8856 lpfc_sli_handle_slow_ring_event_s4;
8857 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
8858 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
8859 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
8862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8863 "1420 Invalid HBA PCI-device group: 0x%x\n",
8872 * __lpfc_sli_ringtx_put - Add an iocb to the txq
8873 * @phba: Pointer to HBA context object.
8874 * @pring: Pointer to driver SLI ring object.
8875 * @piocb: Pointer to address of newly added command iocb.
8877 * This function is called with hbalock held to add a command
8878 * iocb to the txq when SLI layer cannot submit the command iocb
8882 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8883 struct lpfc_iocbq *piocb)
8885 lockdep_assert_held(&phba->hbalock);
8886 /* Insert the caller's iocb in the txq tail for later processing. */
8887 list_add_tail(&piocb->list, &pring->txq);
8891 * lpfc_sli_next_iocb - Get the next iocb in the txq
8892 * @phba: Pointer to HBA context object.
8893 * @pring: Pointer to driver SLI ring object.
8894 * @piocb: Pointer to address of newly added command iocb.
8896 * This function is called with hbalock held before a new
8897 * iocb is submitted to the firmware. This function checks
8898 * txq to flush the iocbs in txq to Firmware before
8899 * submitting new iocbs to the Firmware.
8900 * If there are iocbs in the txq which need to be submitted
8901 * to firmware, lpfc_sli_next_iocb returns the first element
8902 * of the txq after dequeuing it from txq.
8903 * If there is no iocb in the txq then the function will return
8904 * *piocb and *piocb is set to NULL. Caller needs to check
8905 * *piocb to find if there are more commands in the txq.
8907 static struct lpfc_iocbq *
8908 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8909 struct lpfc_iocbq **piocb)
8911 struct lpfc_iocbq * nextiocb;
8913 lockdep_assert_held(&phba->hbalock);
8915 nextiocb = lpfc_sli_ringtx_get(phba, pring);
8925 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
8926 * @phba: Pointer to HBA context object.
8927 * @ring_number: SLI ring number to issue iocb on.
8928 * @piocb: Pointer to command iocb.
8929 * @flag: Flag indicating if this command can be put into txq.
8931 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
8932 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
8933 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
8934 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
8935 * this function allows only iocbs for posting buffers. This function finds
8936 * next available slot in the command ring and posts the command to the
8937 * available slot and writes the port attention register to request HBA start
8938 * processing new iocb. If there is no slot available in the ring and
8939 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
8940 * the function returns IOCB_BUSY.
8942 * This function is called with hbalock held. The function will return success
8943 * after it successfully submit the iocb to firmware or after adding to the
8947 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
8948 struct lpfc_iocbq *piocb, uint32_t flag)
8950 struct lpfc_iocbq *nextiocb;
8952 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
8954 lockdep_assert_held(&phba->hbalock);
8956 if (piocb->iocb_cmpl && (!piocb->vport) &&
8957 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
8958 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
8959 lpfc_printf_log(phba, KERN_ERR,
8960 LOG_SLI | LOG_VPORT,
8961 "1807 IOCB x%x failed. No vport\n",
8962 piocb->iocb.ulpCommand);
8968 /* If the PCI channel is in offline state, do not post iocbs. */
8969 if (unlikely(pci_channel_offline(phba->pcidev)))
8972 /* If HBA has a deferred error attention, fail the iocb. */
8973 if (unlikely(phba->hba_flag & DEFER_ERATT))
8977 * We should never get an IOCB if we are in a < LINK_DOWN state
8979 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
8983 * Check to see if we are blocking IOCB processing because of a
8984 * outstanding event.
8986 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
8989 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
8991 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
8992 * can be issued if the link is not up.
8994 switch (piocb->iocb.ulpCommand) {
8995 case CMD_GEN_REQUEST64_CR:
8996 case CMD_GEN_REQUEST64_CX:
8997 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
8998 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
8999 FC_RCTL_DD_UNSOL_CMD) ||
9000 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
9001 MENLO_TRANSPORT_TYPE))
9005 case CMD_QUE_RING_BUF_CN:
9006 case CMD_QUE_RING_BUF64_CN:
9008 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
9009 * completion, iocb_cmpl MUST be 0.
9011 if (piocb->iocb_cmpl)
9012 piocb->iocb_cmpl = NULL;
9014 case CMD_CREATE_XRI_CR:
9015 case CMD_CLOSE_XRI_CN:
9016 case CMD_CLOSE_XRI_CX:
9023 * For FCP commands, we must be in a state where we can process link
9026 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
9027 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
9031 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
9032 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
9033 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
9036 lpfc_sli_update_ring(phba, pring);
9038 lpfc_sli_update_full_ring(phba, pring);
9041 return IOCB_SUCCESS;
9046 pring->stats.iocb_cmd_delay++;
9050 if (!(flag & SLI_IOCB_RET_IOCB)) {
9051 __lpfc_sli_ringtx_put(phba, pring, piocb);
9052 return IOCB_SUCCESS;
9059 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
9060 * @phba: Pointer to HBA context object.
9061 * @piocb: Pointer to command iocb.
9062 * @sglq: Pointer to the scatter gather queue object.
9064 * This routine converts the bpl or bde that is in the IOCB
9065 * to a sgl list for the sli4 hardware. The physical address
9066 * of the bpl/bde is converted back to a virtual address.
9067 * If the IOCB contains a BPL then the list of BDE's is
9068 * converted to sli4_sge's. If the IOCB contains a single
9069 * BDE then it is converted to a single sli_sge.
9070 * The IOCB is still in cpu endianess so the contents of
9071 * the bpl can be used without byte swapping.
9073 * Returns valid XRI = Success, NO_XRI = Failure.
9076 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
9077 struct lpfc_sglq *sglq)
9079 uint16_t xritag = NO_XRI;
9080 struct ulp_bde64 *bpl = NULL;
9081 struct ulp_bde64 bde;
9082 struct sli4_sge *sgl = NULL;
9083 struct lpfc_dmabuf *dmabuf;
9087 uint32_t offset = 0; /* accumulated offset in the sg request list */
9088 int inbound = 0; /* number of sg reply entries inbound from firmware */
9090 if (!piocbq || !sglq)
9093 sgl = (struct sli4_sge *)sglq->sgl;
9094 icmd = &piocbq->iocb;
9095 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
9096 return sglq->sli4_xritag;
9097 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9098 numBdes = icmd->un.genreq64.bdl.bdeSize /
9099 sizeof(struct ulp_bde64);
9100 /* The addrHigh and addrLow fields within the IOCB
9101 * have not been byteswapped yet so there is no
9102 * need to swap them back.
9104 if (piocbq->context3)
9105 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
9109 bpl = (struct ulp_bde64 *)dmabuf->virt;
9113 for (i = 0; i < numBdes; i++) {
9114 /* Should already be byte swapped. */
9115 sgl->addr_hi = bpl->addrHigh;
9116 sgl->addr_lo = bpl->addrLow;
9118 sgl->word2 = le32_to_cpu(sgl->word2);
9119 if ((i+1) == numBdes)
9120 bf_set(lpfc_sli4_sge_last, sgl, 1);
9122 bf_set(lpfc_sli4_sge_last, sgl, 0);
9123 /* swap the size field back to the cpu so we
9124 * can assign it to the sgl.
9126 bde.tus.w = le32_to_cpu(bpl->tus.w);
9127 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
9128 /* The offsets in the sgl need to be accumulated
9129 * separately for the request and reply lists.
9130 * The request is always first, the reply follows.
9132 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
9133 /* add up the reply sg entries */
9134 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
9136 /* first inbound? reset the offset */
9139 bf_set(lpfc_sli4_sge_offset, sgl, offset);
9140 bf_set(lpfc_sli4_sge_type, sgl,
9141 LPFC_SGE_TYPE_DATA);
9142 offset += bde.tus.f.bdeSize;
9144 sgl->word2 = cpu_to_le32(sgl->word2);
9148 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
9149 /* The addrHigh and addrLow fields of the BDE have not
9150 * been byteswapped yet so they need to be swapped
9151 * before putting them in the sgl.
9154 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
9156 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
9157 sgl->word2 = le32_to_cpu(sgl->word2);
9158 bf_set(lpfc_sli4_sge_last, sgl, 1);
9159 sgl->word2 = cpu_to_le32(sgl->word2);
9161 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
9163 return sglq->sli4_xritag;
9167 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
9168 * @phba: Pointer to HBA context object.
9169 * @piocb: Pointer to command iocb.
9170 * @wqe: Pointer to the work queue entry.
9172 * This routine converts the iocb command to its Work Queue Entry
9173 * equivalent. The wqe pointer should not have any fields set when
9174 * this routine is called because it will memcpy over them.
9175 * This routine does not set the CQ_ID or the WQEC bits in the
9178 * Returns: 0 = Success, IOCB_ERROR = Failure.
9181 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
9182 union lpfc_wqe128 *wqe)
9184 uint32_t xmit_len = 0, total_len = 0;
9188 uint8_t command_type = ELS_COMMAND_NON_FIP;
9191 uint16_t abrt_iotag;
9192 struct lpfc_iocbq *abrtiocbq;
9193 struct ulp_bde64 *bpl = NULL;
9194 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
9196 struct ulp_bde64 bde;
9197 struct lpfc_nodelist *ndlp;
9201 fip = phba->hba_flag & HBA_FIP_SUPPORT;
9202 /* The fcp commands will set command type */
9203 if (iocbq->iocb_flag & LPFC_IO_FCP)
9204 command_type = FCP_COMMAND;
9205 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
9206 command_type = ELS_COMMAND_FIP;
9208 command_type = ELS_COMMAND_NON_FIP;
9210 if (phba->fcp_embed_io)
9211 memset(wqe, 0, sizeof(union lpfc_wqe128));
9212 /* Some of the fields are in the right position already */
9213 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
9214 if (iocbq->iocb.ulpCommand != CMD_SEND_FRAME) {
9215 /* The ct field has moved so reset */
9216 wqe->generic.wqe_com.word7 = 0;
9217 wqe->generic.wqe_com.word10 = 0;
9220 abort_tag = (uint32_t) iocbq->iotag;
9221 xritag = iocbq->sli4_xritag;
9222 /* words0-2 bpl convert bde */
9223 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9224 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9225 sizeof(struct ulp_bde64);
9226 bpl = (struct ulp_bde64 *)
9227 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
9231 /* Should already be byte swapped. */
9232 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
9233 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
9234 /* swap the size field back to the cpu so we
9235 * can assign it to the sgl.
9237 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
9238 xmit_len = wqe->generic.bde.tus.f.bdeSize;
9240 for (i = 0; i < numBdes; i++) {
9241 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9242 total_len += bde.tus.f.bdeSize;
9245 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
9247 iocbq->iocb.ulpIoTag = iocbq->iotag;
9248 cmnd = iocbq->iocb.ulpCommand;
9250 switch (iocbq->iocb.ulpCommand) {
9251 case CMD_ELS_REQUEST64_CR:
9252 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
9253 ndlp = iocbq->context_un.ndlp;
9255 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9256 if (!iocbq->iocb.ulpLe) {
9257 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9258 "2007 Only Limited Edition cmd Format"
9259 " supported 0x%x\n",
9260 iocbq->iocb.ulpCommand);
9264 wqe->els_req.payload_len = xmit_len;
9265 /* Els_reguest64 has a TMO */
9266 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
9267 iocbq->iocb.ulpTimeout);
9268 /* Need a VF for word 4 set the vf bit*/
9269 bf_set(els_req64_vf, &wqe->els_req, 0);
9270 /* And a VFID for word 12 */
9271 bf_set(els_req64_vfid, &wqe->els_req, 0);
9272 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9273 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9274 iocbq->iocb.ulpContext);
9275 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
9276 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
9277 /* CCP CCPE PV PRI in word10 were set in the memcpy */
9278 if (command_type == ELS_COMMAND_FIP)
9279 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
9280 >> LPFC_FIP_ELS_ID_SHIFT);
9281 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9282 iocbq->context2)->virt);
9283 if_type = bf_get(lpfc_sli_intf_if_type,
9284 &phba->sli4_hba.sli_intf);
9285 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9286 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
9287 *pcmd == ELS_CMD_SCR ||
9288 *pcmd == ELS_CMD_FDISC ||
9289 *pcmd == ELS_CMD_LOGO ||
9290 *pcmd == ELS_CMD_PLOGI)) {
9291 bf_set(els_req64_sp, &wqe->els_req, 1);
9292 bf_set(els_req64_sid, &wqe->els_req,
9293 iocbq->vport->fc_myDID);
9294 if ((*pcmd == ELS_CMD_FLOGI) &&
9295 !(phba->fc_topology ==
9296 LPFC_TOPOLOGY_LOOP))
9297 bf_set(els_req64_sid, &wqe->els_req, 0);
9298 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
9299 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9300 phba->vpi_ids[iocbq->vport->vpi]);
9301 } else if (pcmd && iocbq->context1) {
9302 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
9303 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9304 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9307 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
9308 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9309 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
9310 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
9311 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
9312 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
9313 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9314 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
9315 wqe->els_req.max_response_payload_len = total_len - xmit_len;
9317 case CMD_XMIT_SEQUENCE64_CX:
9318 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
9319 iocbq->iocb.un.ulpWord[3]);
9320 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
9321 iocbq->iocb.unsli3.rcvsli3.ox_id);
9322 /* The entire sequence is transmitted for this IOCB */
9323 xmit_len = total_len;
9324 cmnd = CMD_XMIT_SEQUENCE64_CR;
9325 if (phba->link_flag & LS_LOOPBACK_MODE)
9326 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
9327 case CMD_XMIT_SEQUENCE64_CR:
9328 /* word3 iocb=io_tag32 wqe=reserved */
9329 wqe->xmit_sequence.rsvd3 = 0;
9330 /* word4 relative_offset memcpy */
9331 /* word5 r_ctl/df_ctl memcpy */
9332 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
9333 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
9334 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
9335 LPFC_WQE_IOD_WRITE);
9336 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
9337 LPFC_WQE_LENLOC_WORD12);
9338 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
9339 wqe->xmit_sequence.xmit_len = xmit_len;
9340 command_type = OTHER_COMMAND;
9342 case CMD_XMIT_BCAST64_CN:
9343 /* word3 iocb=iotag32 wqe=seq_payload_len */
9344 wqe->xmit_bcast64.seq_payload_len = xmit_len;
9345 /* word4 iocb=rsvd wqe=rsvd */
9346 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
9347 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
9348 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
9349 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9350 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
9351 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
9352 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
9353 LPFC_WQE_LENLOC_WORD3);
9354 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
9356 case CMD_FCP_IWRITE64_CR:
9357 command_type = FCP_COMMAND_DATA_OUT;
9358 /* word3 iocb=iotag wqe=payload_offset_len */
9359 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9360 bf_set(payload_offset_len, &wqe->fcp_iwrite,
9361 xmit_len + sizeof(struct fcp_rsp));
9362 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
9364 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9365 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9366 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
9367 iocbq->iocb.ulpFCP2Rcvy);
9368 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
9369 /* Always open the exchange */
9370 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
9371 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
9372 LPFC_WQE_LENLOC_WORD4);
9373 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
9374 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
9375 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9376 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
9377 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
9378 if (iocbq->priority) {
9379 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9380 (iocbq->priority << 1));
9382 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9383 (phba->cfg_XLanePriority << 1));
9386 /* Note, word 10 is already initialized to 0 */
9388 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9389 if (phba->cfg_enable_pbde)
9390 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 1);
9392 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
9394 if (phba->fcp_embed_io) {
9395 struct lpfc_scsi_buf *lpfc_cmd;
9396 struct sli4_sge *sgl;
9397 struct fcp_cmnd *fcp_cmnd;
9400 /* 128 byte wqe support here */
9402 lpfc_cmd = iocbq->context1;
9403 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
9404 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9406 /* Word 0-2 - FCP_CMND */
9407 wqe->generic.bde.tus.f.bdeFlags =
9408 BUFF_TYPE_BDE_IMMED;
9409 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9410 wqe->generic.bde.addrHigh = 0;
9411 wqe->generic.bde.addrLow = 88; /* Word 22 */
9413 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
9414 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
9416 /* Word 22-29 FCP CMND Payload */
9417 ptr = &wqe->words[22];
9418 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9421 case CMD_FCP_IREAD64_CR:
9422 /* word3 iocb=iotag wqe=payload_offset_len */
9423 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9424 bf_set(payload_offset_len, &wqe->fcp_iread,
9425 xmit_len + sizeof(struct fcp_rsp));
9426 bf_set(cmd_buff_len, &wqe->fcp_iread,
9428 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9429 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9430 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
9431 iocbq->iocb.ulpFCP2Rcvy);
9432 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
9433 /* Always open the exchange */
9434 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
9435 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
9436 LPFC_WQE_LENLOC_WORD4);
9437 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
9438 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
9439 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9440 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
9441 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
9442 if (iocbq->priority) {
9443 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9444 (iocbq->priority << 1));
9446 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9447 (phba->cfg_XLanePriority << 1));
9450 /* Note, word 10 is already initialized to 0 */
9452 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9453 if (phba->cfg_enable_pbde)
9454 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 1);
9456 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
9458 if (phba->fcp_embed_io) {
9459 struct lpfc_scsi_buf *lpfc_cmd;
9460 struct sli4_sge *sgl;
9461 struct fcp_cmnd *fcp_cmnd;
9464 /* 128 byte wqe support here */
9466 lpfc_cmd = iocbq->context1;
9467 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
9468 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9470 /* Word 0-2 - FCP_CMND */
9471 wqe->generic.bde.tus.f.bdeFlags =
9472 BUFF_TYPE_BDE_IMMED;
9473 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9474 wqe->generic.bde.addrHigh = 0;
9475 wqe->generic.bde.addrLow = 88; /* Word 22 */
9477 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
9478 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
9480 /* Word 22-29 FCP CMND Payload */
9481 ptr = &wqe->words[22];
9482 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9485 case CMD_FCP_ICMND64_CR:
9486 /* word3 iocb=iotag wqe=payload_offset_len */
9487 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9488 bf_set(payload_offset_len, &wqe->fcp_icmd,
9489 xmit_len + sizeof(struct fcp_rsp));
9490 bf_set(cmd_buff_len, &wqe->fcp_icmd,
9492 /* word3 iocb=IO_TAG wqe=reserved */
9493 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
9494 /* Always open the exchange */
9495 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
9496 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
9497 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
9498 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
9499 LPFC_WQE_LENLOC_NONE);
9500 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
9501 iocbq->iocb.ulpFCP2Rcvy);
9502 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9503 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
9504 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
9505 if (iocbq->priority) {
9506 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9507 (iocbq->priority << 1));
9509 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9510 (phba->cfg_XLanePriority << 1));
9513 /* Note, word 10 is already initialized to 0 */
9515 if (phba->fcp_embed_io) {
9516 struct lpfc_scsi_buf *lpfc_cmd;
9517 struct sli4_sge *sgl;
9518 struct fcp_cmnd *fcp_cmnd;
9521 /* 128 byte wqe support here */
9523 lpfc_cmd = iocbq->context1;
9524 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
9525 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9527 /* Word 0-2 - FCP_CMND */
9528 wqe->generic.bde.tus.f.bdeFlags =
9529 BUFF_TYPE_BDE_IMMED;
9530 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9531 wqe->generic.bde.addrHigh = 0;
9532 wqe->generic.bde.addrLow = 88; /* Word 22 */
9534 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
9535 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
9537 /* Word 22-29 FCP CMND Payload */
9538 ptr = &wqe->words[22];
9539 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9542 case CMD_GEN_REQUEST64_CR:
9543 /* For this command calculate the xmit length of the
9547 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9548 sizeof(struct ulp_bde64);
9549 for (i = 0; i < numBdes; i++) {
9550 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9551 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
9553 xmit_len += bde.tus.f.bdeSize;
9555 /* word3 iocb=IO_TAG wqe=request_payload_len */
9556 wqe->gen_req.request_payload_len = xmit_len;
9557 /* word4 iocb=parameter wqe=relative_offset memcpy */
9558 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
9559 /* word6 context tag copied in memcpy */
9560 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
9561 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9562 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9563 "2015 Invalid CT %x command 0x%x\n",
9564 ct, iocbq->iocb.ulpCommand);
9567 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
9568 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
9569 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
9570 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
9571 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
9572 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
9573 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9574 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
9575 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
9576 command_type = OTHER_COMMAND;
9578 case CMD_XMIT_ELS_RSP64_CX:
9579 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9580 /* words0-2 BDE memcpy */
9581 /* word3 iocb=iotag32 wqe=response_payload_len */
9582 wqe->xmit_els_rsp.response_payload_len = xmit_len;
9584 wqe->xmit_els_rsp.word4 = 0;
9585 /* word5 iocb=rsvd wge=did */
9586 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
9587 iocbq->iocb.un.xseq64.xmit_els_remoteID);
9589 if_type = bf_get(lpfc_sli_intf_if_type,
9590 &phba->sli4_hba.sli_intf);
9591 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9592 if (iocbq->vport->fc_flag & FC_PT2PT) {
9593 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9594 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9595 iocbq->vport->fc_myDID);
9596 if (iocbq->vport->fc_myDID == Fabric_DID) {
9598 &wqe->xmit_els_rsp.wqe_dest, 0);
9602 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
9603 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9604 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
9605 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
9606 iocbq->iocb.unsli3.rcvsli3.ox_id);
9607 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
9608 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9609 phba->vpi_ids[iocbq->vport->vpi]);
9610 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9611 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9612 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9613 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9614 LPFC_WQE_LENLOC_WORD3);
9615 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
9616 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9617 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9618 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9619 iocbq->context2)->virt);
9620 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9621 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9622 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9623 iocbq->vport->fc_myDID);
9624 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9625 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9626 phba->vpi_ids[phba->pport->vpi]);
9628 command_type = OTHER_COMMAND;
9630 case CMD_CLOSE_XRI_CN:
9631 case CMD_ABORT_XRI_CN:
9632 case CMD_ABORT_XRI_CX:
9633 /* words 0-2 memcpy should be 0 rserved */
9634 /* port will send abts */
9635 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9636 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9637 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9638 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9642 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
9644 * The link is down, or the command was ELS_FIP
9645 * so the fw does not need to send abts
9648 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9650 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9651 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
9652 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9653 wqe->abort_cmd.rsrvd5 = 0;
9654 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
9655 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9656 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
9658 * The abort handler will send us CMD_ABORT_XRI_CN or
9659 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9661 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9662 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9663 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9664 LPFC_WQE_LENLOC_NONE);
9665 cmnd = CMD_ABORT_XRI_CX;
9666 command_type = OTHER_COMMAND;
9669 case CMD_XMIT_BLS_RSP64_CX:
9670 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9671 /* As BLS ABTS RSP WQE is very different from other WQEs,
9672 * we re-construct this WQE here based on information in
9673 * iocbq from scratch.
9675 memset(wqe, 0, sizeof(union lpfc_wqe));
9676 /* OX_ID is invariable to who sent ABTS to CT exchange */
9677 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
9678 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9679 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
9680 LPFC_ABTS_UNSOL_INT) {
9681 /* ABTS sent by initiator to CT exchange, the
9682 * RX_ID field will be filled with the newly
9683 * allocated responder XRI.
9685 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9686 iocbq->sli4_xritag);
9688 /* ABTS sent by responder to CT exchange, the
9689 * RX_ID field will be filled with the responder
9692 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9693 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
9695 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9696 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
9699 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9701 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9702 iocbq->iocb.ulpContext);
9703 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
9704 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
9705 phba->vpi_ids[phba->pport->vpi]);
9706 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9707 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9708 LPFC_WQE_LENLOC_NONE);
9709 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9710 command_type = OTHER_COMMAND;
9711 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9712 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9713 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9714 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9715 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9716 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9717 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9721 case CMD_SEND_FRAME:
9722 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9723 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9725 case CMD_XRI_ABORTED_CX:
9726 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
9727 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9728 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9729 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9730 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9732 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9733 "2014 Invalid command 0x%x\n",
9734 iocbq->iocb.ulpCommand);
9739 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9740 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9741 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9742 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9743 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9744 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9745 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9746 LPFC_IO_DIF_INSERT);
9747 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9748 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9749 wqe->generic.wqe_com.abort_tag = abort_tag;
9750 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9751 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9752 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9753 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9758 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9759 * @phba: Pointer to HBA context object.
9760 * @ring_number: SLI ring number to issue iocb on.
9761 * @piocb: Pointer to command iocb.
9762 * @flag: Flag indicating if this command can be put into txq.
9764 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9765 * an iocb command to an HBA with SLI-4 interface spec.
9767 * This function is called with hbalock held. The function will return success
9768 * after it successfully submit the iocb to firmware or after adding to the
9772 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9773 struct lpfc_iocbq *piocb, uint32_t flag)
9775 struct lpfc_sglq *sglq;
9776 union lpfc_wqe128 wqe;
9777 struct lpfc_queue *wq;
9778 struct lpfc_sli_ring *pring;
9781 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9782 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9783 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS)))
9784 wq = phba->sli4_hba.fcp_wq[piocb->hba_wqidx];
9786 wq = phba->sli4_hba.oas_wq;
9788 wq = phba->sli4_hba.els_wq;
9791 /* Get corresponding ring */
9795 * The WQE can be either 64 or 128 bytes,
9798 lockdep_assert_held(&phba->hbalock);
9800 if (piocb->sli4_xritag == NO_XRI) {
9801 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
9802 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
9805 if (!list_empty(&pring->txq)) {
9806 if (!(flag & SLI_IOCB_RET_IOCB)) {
9807 __lpfc_sli_ringtx_put(phba,
9809 return IOCB_SUCCESS;
9814 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
9816 if (!(flag & SLI_IOCB_RET_IOCB)) {
9817 __lpfc_sli_ringtx_put(phba,
9820 return IOCB_SUCCESS;
9826 } else if (piocb->iocb_flag & LPFC_IO_FCP)
9827 /* These IO's already have an XRI and a mapped sgl. */
9831 * This is a continuation of a commandi,(CX) so this
9832 * sglq is on the active list
9834 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
9840 piocb->sli4_lxritag = sglq->sli4_lxritag;
9841 piocb->sli4_xritag = sglq->sli4_xritag;
9842 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
9846 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
9849 if (lpfc_sli4_wq_put(wq, &wqe))
9851 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
9857 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
9859 * This routine wraps the actual lockless version for issusing IOCB function
9860 * pointer from the lpfc_hba struct.
9863 * IOCB_ERROR - Error
9864 * IOCB_SUCCESS - Success
9868 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9869 struct lpfc_iocbq *piocb, uint32_t flag)
9871 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9875 * lpfc_sli_api_table_setup - Set up sli api function jump table
9876 * @phba: The hba struct for which this call is being executed.
9877 * @dev_grp: The HBA PCI-Device group number.
9879 * This routine sets up the SLI interface API function jump table in @phba
9881 * Returns: 0 - success, -ENODEV - failure.
9884 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9888 case LPFC_PCI_DEV_LP:
9889 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
9890 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
9892 case LPFC_PCI_DEV_OC:
9893 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
9894 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
9897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9898 "1419 Invalid HBA PCI-device group: 0x%x\n",
9903 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
9908 * lpfc_sli4_calc_ring - Calculates which ring to use
9909 * @phba: Pointer to HBA context object.
9910 * @piocb: Pointer to command iocb.
9912 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
9913 * hba_wqidx, thus we need to calculate the corresponding ring.
9914 * Since ABORTS must go on the same WQ of the command they are
9915 * aborting, we use command's hba_wqidx.
9917 struct lpfc_sli_ring *
9918 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
9920 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
9921 if (!(phba->cfg_fof) ||
9922 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
9923 if (unlikely(!phba->sli4_hba.fcp_wq))
9926 * for abort iocb hba_wqidx should already
9927 * be setup based on what work queue we used.
9929 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9931 lpfc_sli4_scmd_to_wqidx_distr(phba,
9933 piocb->hba_wqidx = piocb->hba_wqidx %
9934 phba->cfg_fcp_io_channel;
9936 return phba->sli4_hba.fcp_wq[piocb->hba_wqidx]->pring;
9938 if (unlikely(!phba->sli4_hba.oas_wq))
9940 piocb->hba_wqidx = 0;
9941 return phba->sli4_hba.oas_wq->pring;
9944 if (unlikely(!phba->sli4_hba.els_wq))
9946 piocb->hba_wqidx = 0;
9947 return phba->sli4_hba.els_wq->pring;
9952 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
9953 * @phba: Pointer to HBA context object.
9954 * @pring: Pointer to driver SLI ring object.
9955 * @piocb: Pointer to command iocb.
9956 * @flag: Flag indicating if this command can be put into txq.
9958 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
9959 * function. This function gets the hbalock and calls
9960 * __lpfc_sli_issue_iocb function and will return the error returned
9961 * by __lpfc_sli_issue_iocb function. This wrapper is used by
9962 * functions which do not hold hbalock.
9965 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9966 struct lpfc_iocbq *piocb, uint32_t flag)
9968 struct lpfc_hba_eq_hdl *hba_eq_hdl;
9969 struct lpfc_sli_ring *pring;
9970 struct lpfc_queue *fpeq;
9971 struct lpfc_eqe *eqe;
9972 unsigned long iflags;
9975 if (phba->sli_rev == LPFC_SLI_REV4) {
9976 pring = lpfc_sli4_calc_ring(phba, piocb);
9977 if (unlikely(pring == NULL))
9980 spin_lock_irqsave(&pring->ring_lock, iflags);
9981 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9982 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9984 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
9985 idx = piocb->hba_wqidx;
9986 hba_eq_hdl = &phba->sli4_hba.hba_eq_hdl[idx];
9988 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use)) {
9990 /* Get associated EQ with this index */
9991 fpeq = phba->sli4_hba.hba_eq[idx];
9993 /* Turn off interrupts from this EQ */
9994 phba->sli4_hba.sli4_eq_clr_intr(fpeq);
9997 * Process all the events on FCP EQ
9999 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
10000 lpfc_sli4_hba_handle_eqe(phba,
10002 fpeq->EQ_processed++;
10005 /* Always clear and re-arm the EQ */
10006 phba->sli4_hba.sli4_eq_release(fpeq,
10009 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
10012 /* For now, SLI2/3 will still use hbalock */
10013 spin_lock_irqsave(&phba->hbalock, iflags);
10014 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10015 spin_unlock_irqrestore(&phba->hbalock, iflags);
10021 * lpfc_extra_ring_setup - Extra ring setup function
10022 * @phba: Pointer to HBA context object.
10024 * This function is called while driver attaches with the
10025 * HBA to setup the extra ring. The extra ring is used
10026 * only when driver needs to support target mode functionality
10027 * or IP over FC functionalities.
10029 * This function is called with no lock held. SLI3 only.
10032 lpfc_extra_ring_setup( struct lpfc_hba *phba)
10034 struct lpfc_sli *psli;
10035 struct lpfc_sli_ring *pring;
10039 /* Adjust cmd/rsp ring iocb entries more evenly */
10041 /* Take some away from the FCP ring */
10042 pring = &psli->sli3_ring[LPFC_FCP_RING];
10043 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10044 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10045 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10046 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10048 /* and give them to the extra ring */
10049 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
10051 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10052 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10053 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10054 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10056 /* Setup default profile for this ring */
10057 pring->iotag_max = 4096;
10058 pring->num_mask = 1;
10059 pring->prt[0].profile = 0; /* Mask 0 */
10060 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
10061 pring->prt[0].type = phba->cfg_multi_ring_type;
10062 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
10066 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
10067 * @phba: Pointer to HBA context object.
10068 * @iocbq: Pointer to iocb object.
10070 * The async_event handler calls this routine when it receives
10071 * an ASYNC_STATUS_CN event from the port. The port generates
10072 * this event when an Abort Sequence request to an rport fails
10073 * twice in succession. The abort could be originated by the
10074 * driver or by the port. The ABTS could have been for an ELS
10075 * or FCP IO. The port only generates this event when an ABTS
10076 * fails to complete after one retry.
10079 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
10080 struct lpfc_iocbq *iocbq)
10082 struct lpfc_nodelist *ndlp = NULL;
10083 uint16_t rpi = 0, vpi = 0;
10084 struct lpfc_vport *vport = NULL;
10086 /* The rpi in the ulpContext is vport-sensitive. */
10087 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
10088 rpi = iocbq->iocb.ulpContext;
10090 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10091 "3092 Port generated ABTS async event "
10092 "on vpi %d rpi %d status 0x%x\n",
10093 vpi, rpi, iocbq->iocb.ulpStatus);
10095 vport = lpfc_find_vport_by_vpid(phba, vpi);
10098 ndlp = lpfc_findnode_rpi(vport, rpi);
10099 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
10102 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
10103 lpfc_sli_abts_recover_port(vport, ndlp);
10107 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10108 "3095 Event Context not found, no "
10109 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
10110 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
10114 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
10115 * @phba: pointer to HBA context object.
10116 * @ndlp: nodelist pointer for the impacted rport.
10117 * @axri: pointer to the wcqe containing the failed exchange.
10119 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
10120 * port. The port generates this event when an abort exchange request to an
10121 * rport fails twice in succession with no reply. The abort could be originated
10122 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
10125 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
10126 struct lpfc_nodelist *ndlp,
10127 struct sli4_wcqe_xri_aborted *axri)
10129 struct lpfc_vport *vport;
10130 uint32_t ext_status = 0;
10132 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
10133 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10134 "3115 Node Context not found, driver "
10135 "ignoring abts err event\n");
10139 vport = ndlp->vport;
10140 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10141 "3116 Port generated FCP XRI ABORT event on "
10142 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
10143 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
10144 bf_get(lpfc_wcqe_xa_xri, axri),
10145 bf_get(lpfc_wcqe_xa_status, axri),
10149 * Catch the ABTS protocol failure case. Older OCe FW releases returned
10150 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
10151 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
10153 ext_status = axri->parameter & IOERR_PARAM_MASK;
10154 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
10155 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
10156 lpfc_sli_abts_recover_port(vport, ndlp);
10160 * lpfc_sli_async_event_handler - ASYNC iocb handler function
10161 * @phba: Pointer to HBA context object.
10162 * @pring: Pointer to driver SLI ring object.
10163 * @iocbq: Pointer to iocb object.
10165 * This function is called by the slow ring event handler
10166 * function when there is an ASYNC event iocb in the ring.
10167 * This function is called with no lock held.
10168 * Currently this function handles only temperature related
10169 * ASYNC events. The function decodes the temperature sensor
10170 * event message and posts events for the management applications.
10173 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
10174 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
10178 struct temp_event temp_event_data;
10179 struct Scsi_Host *shost;
10182 icmd = &iocbq->iocb;
10183 evt_code = icmd->un.asyncstat.evt_code;
10185 switch (evt_code) {
10186 case ASYNC_TEMP_WARN:
10187 case ASYNC_TEMP_SAFE:
10188 temp_event_data.data = (uint32_t) icmd->ulpContext;
10189 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
10190 if (evt_code == ASYNC_TEMP_WARN) {
10191 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
10192 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10193 "0347 Adapter is very hot, please take "
10194 "corrective action. temperature : %d Celsius\n",
10195 (uint32_t) icmd->ulpContext);
10197 temp_event_data.event_code = LPFC_NORMAL_TEMP;
10198 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10199 "0340 Adapter temperature is OK now. "
10200 "temperature : %d Celsius\n",
10201 (uint32_t) icmd->ulpContext);
10204 /* Send temperature change event to applications */
10205 shost = lpfc_shost_from_vport(phba->pport);
10206 fc_host_post_vendor_event(shost, fc_get_event_number(),
10207 sizeof(temp_event_data), (char *) &temp_event_data,
10208 LPFC_NL_VENDOR_ID);
10210 case ASYNC_STATUS_CN:
10211 lpfc_sli_abts_err_handler(phba, iocbq);
10214 iocb_w = (uint32_t *) icmd;
10215 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10216 "0346 Ring %d handler: unexpected ASYNC_STATUS"
10218 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
10219 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
10220 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
10221 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
10222 pring->ringno, icmd->un.asyncstat.evt_code,
10223 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
10224 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
10225 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
10226 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
10234 * lpfc_sli4_setup - SLI ring setup function
10235 * @phba: Pointer to HBA context object.
10237 * lpfc_sli_setup sets up rings of the SLI interface with
10238 * number of iocbs per ring and iotags. This function is
10239 * called while driver attach to the HBA and before the
10240 * interrupts are enabled. So there is no need for locking.
10242 * This function always returns 0.
10245 lpfc_sli4_setup(struct lpfc_hba *phba)
10247 struct lpfc_sli_ring *pring;
10249 pring = phba->sli4_hba.els_wq->pring;
10250 pring->num_mask = LPFC_MAX_RING_MASK;
10251 pring->prt[0].profile = 0; /* Mask 0 */
10252 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10253 pring->prt[0].type = FC_TYPE_ELS;
10254 pring->prt[0].lpfc_sli_rcv_unsol_event =
10255 lpfc_els_unsol_event;
10256 pring->prt[1].profile = 0; /* Mask 1 */
10257 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10258 pring->prt[1].type = FC_TYPE_ELS;
10259 pring->prt[1].lpfc_sli_rcv_unsol_event =
10260 lpfc_els_unsol_event;
10261 pring->prt[2].profile = 0; /* Mask 2 */
10262 /* NameServer Inquiry */
10263 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10265 pring->prt[2].type = FC_TYPE_CT;
10266 pring->prt[2].lpfc_sli_rcv_unsol_event =
10267 lpfc_ct_unsol_event;
10268 pring->prt[3].profile = 0; /* Mask 3 */
10269 /* NameServer response */
10270 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10272 pring->prt[3].type = FC_TYPE_CT;
10273 pring->prt[3].lpfc_sli_rcv_unsol_event =
10274 lpfc_ct_unsol_event;
10279 * lpfc_sli_setup - SLI ring setup function
10280 * @phba: Pointer to HBA context object.
10282 * lpfc_sli_setup sets up rings of the SLI interface with
10283 * number of iocbs per ring and iotags. This function is
10284 * called while driver attach to the HBA and before the
10285 * interrupts are enabled. So there is no need for locking.
10287 * This function always returns 0. SLI3 only.
10290 lpfc_sli_setup(struct lpfc_hba *phba)
10292 int i, totiocbsize = 0;
10293 struct lpfc_sli *psli = &phba->sli;
10294 struct lpfc_sli_ring *pring;
10296 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
10297 psli->sli_flag = 0;
10299 psli->iocbq_lookup = NULL;
10300 psli->iocbq_lookup_len = 0;
10301 psli->last_iotag = 0;
10303 for (i = 0; i < psli->num_rings; i++) {
10304 pring = &psli->sli3_ring[i];
10306 case LPFC_FCP_RING: /* ring 0 - FCP */
10307 /* numCiocb and numRiocb are used in config_port */
10308 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
10309 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
10310 pring->sli.sli3.numCiocb +=
10311 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10312 pring->sli.sli3.numRiocb +=
10313 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10314 pring->sli.sli3.numCiocb +=
10315 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10316 pring->sli.sli3.numRiocb +=
10317 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10318 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10319 SLI3_IOCB_CMD_SIZE :
10320 SLI2_IOCB_CMD_SIZE;
10321 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10322 SLI3_IOCB_RSP_SIZE :
10323 SLI2_IOCB_RSP_SIZE;
10324 pring->iotag_ctr = 0;
10326 (phba->cfg_hba_queue_depth * 2);
10327 pring->fast_iotag = pring->iotag_max;
10328 pring->num_mask = 0;
10330 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
10331 /* numCiocb and numRiocb are used in config_port */
10332 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
10333 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
10334 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10335 SLI3_IOCB_CMD_SIZE :
10336 SLI2_IOCB_CMD_SIZE;
10337 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10338 SLI3_IOCB_RSP_SIZE :
10339 SLI2_IOCB_RSP_SIZE;
10340 pring->iotag_max = phba->cfg_hba_queue_depth;
10341 pring->num_mask = 0;
10343 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
10344 /* numCiocb and numRiocb are used in config_port */
10345 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
10346 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
10347 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10348 SLI3_IOCB_CMD_SIZE :
10349 SLI2_IOCB_CMD_SIZE;
10350 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10351 SLI3_IOCB_RSP_SIZE :
10352 SLI2_IOCB_RSP_SIZE;
10353 pring->fast_iotag = 0;
10354 pring->iotag_ctr = 0;
10355 pring->iotag_max = 4096;
10356 pring->lpfc_sli_rcv_async_status =
10357 lpfc_sli_async_event_handler;
10358 pring->num_mask = LPFC_MAX_RING_MASK;
10359 pring->prt[0].profile = 0; /* Mask 0 */
10360 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10361 pring->prt[0].type = FC_TYPE_ELS;
10362 pring->prt[0].lpfc_sli_rcv_unsol_event =
10363 lpfc_els_unsol_event;
10364 pring->prt[1].profile = 0; /* Mask 1 */
10365 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10366 pring->prt[1].type = FC_TYPE_ELS;
10367 pring->prt[1].lpfc_sli_rcv_unsol_event =
10368 lpfc_els_unsol_event;
10369 pring->prt[2].profile = 0; /* Mask 2 */
10370 /* NameServer Inquiry */
10371 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10373 pring->prt[2].type = FC_TYPE_CT;
10374 pring->prt[2].lpfc_sli_rcv_unsol_event =
10375 lpfc_ct_unsol_event;
10376 pring->prt[3].profile = 0; /* Mask 3 */
10377 /* NameServer response */
10378 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10380 pring->prt[3].type = FC_TYPE_CT;
10381 pring->prt[3].lpfc_sli_rcv_unsol_event =
10382 lpfc_ct_unsol_event;
10385 totiocbsize += (pring->sli.sli3.numCiocb *
10386 pring->sli.sli3.sizeCiocb) +
10387 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
10389 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
10390 /* Too many cmd / rsp ring entries in SLI2 SLIM */
10391 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
10392 "SLI2 SLIM Data: x%x x%lx\n",
10393 phba->brd_no, totiocbsize,
10394 (unsigned long) MAX_SLIM_IOCB_SIZE);
10396 if (phba->cfg_multi_ring_support == 2)
10397 lpfc_extra_ring_setup(phba);
10403 * lpfc_sli4_queue_init - Queue initialization function
10404 * @phba: Pointer to HBA context object.
10406 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
10407 * ring. This function also initializes ring indices of each ring.
10408 * This function is called during the initialization of the SLI
10409 * interface of an HBA.
10410 * This function is called with no lock held and always returns
10414 lpfc_sli4_queue_init(struct lpfc_hba *phba)
10416 struct lpfc_sli *psli;
10417 struct lpfc_sli_ring *pring;
10421 spin_lock_irq(&phba->hbalock);
10422 INIT_LIST_HEAD(&psli->mboxq);
10423 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10424 /* Initialize list headers for txq and txcmplq as double linked lists */
10425 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
10426 pring = phba->sli4_hba.fcp_wq[i]->pring;
10428 pring->ringno = LPFC_FCP_RING;
10429 INIT_LIST_HEAD(&pring->txq);
10430 INIT_LIST_HEAD(&pring->txcmplq);
10431 INIT_LIST_HEAD(&pring->iocb_continueq);
10432 spin_lock_init(&pring->ring_lock);
10434 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
10435 pring = phba->sli4_hba.nvme_wq[i]->pring;
10437 pring->ringno = LPFC_FCP_RING;
10438 INIT_LIST_HEAD(&pring->txq);
10439 INIT_LIST_HEAD(&pring->txcmplq);
10440 INIT_LIST_HEAD(&pring->iocb_continueq);
10441 spin_lock_init(&pring->ring_lock);
10443 pring = phba->sli4_hba.els_wq->pring;
10445 pring->ringno = LPFC_ELS_RING;
10446 INIT_LIST_HEAD(&pring->txq);
10447 INIT_LIST_HEAD(&pring->txcmplq);
10448 INIT_LIST_HEAD(&pring->iocb_continueq);
10449 spin_lock_init(&pring->ring_lock);
10451 if (phba->cfg_nvme_io_channel) {
10452 pring = phba->sli4_hba.nvmels_wq->pring;
10454 pring->ringno = LPFC_ELS_RING;
10455 INIT_LIST_HEAD(&pring->txq);
10456 INIT_LIST_HEAD(&pring->txcmplq);
10457 INIT_LIST_HEAD(&pring->iocb_continueq);
10458 spin_lock_init(&pring->ring_lock);
10461 if (phba->cfg_fof) {
10462 pring = phba->sli4_hba.oas_wq->pring;
10464 pring->ringno = LPFC_FCP_RING;
10465 INIT_LIST_HEAD(&pring->txq);
10466 INIT_LIST_HEAD(&pring->txcmplq);
10467 INIT_LIST_HEAD(&pring->iocb_continueq);
10468 spin_lock_init(&pring->ring_lock);
10471 spin_unlock_irq(&phba->hbalock);
10475 * lpfc_sli_queue_init - Queue initialization function
10476 * @phba: Pointer to HBA context object.
10478 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
10479 * ring. This function also initializes ring indices of each ring.
10480 * This function is called during the initialization of the SLI
10481 * interface of an HBA.
10482 * This function is called with no lock held and always returns
10486 lpfc_sli_queue_init(struct lpfc_hba *phba)
10488 struct lpfc_sli *psli;
10489 struct lpfc_sli_ring *pring;
10493 spin_lock_irq(&phba->hbalock);
10494 INIT_LIST_HEAD(&psli->mboxq);
10495 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10496 /* Initialize list headers for txq and txcmplq as double linked lists */
10497 for (i = 0; i < psli->num_rings; i++) {
10498 pring = &psli->sli3_ring[i];
10500 pring->sli.sli3.next_cmdidx = 0;
10501 pring->sli.sli3.local_getidx = 0;
10502 pring->sli.sli3.cmdidx = 0;
10503 INIT_LIST_HEAD(&pring->iocb_continueq);
10504 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
10505 INIT_LIST_HEAD(&pring->postbufq);
10507 INIT_LIST_HEAD(&pring->txq);
10508 INIT_LIST_HEAD(&pring->txcmplq);
10509 spin_lock_init(&pring->ring_lock);
10511 spin_unlock_irq(&phba->hbalock);
10515 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
10516 * @phba: Pointer to HBA context object.
10518 * This routine flushes the mailbox command subsystem. It will unconditionally
10519 * flush all the mailbox commands in the three possible stages in the mailbox
10520 * command sub-system: pending mailbox command queue; the outstanding mailbox
10521 * command; and completed mailbox command queue. It is caller's responsibility
10522 * to make sure that the driver is in the proper state to flush the mailbox
10523 * command sub-system. Namely, the posting of mailbox commands into the
10524 * pending mailbox command queue from the various clients must be stopped;
10525 * either the HBA is in a state that it will never works on the outstanding
10526 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
10527 * mailbox command has been completed.
10530 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
10532 LIST_HEAD(completions);
10533 struct lpfc_sli *psli = &phba->sli;
10535 unsigned long iflag;
10537 /* Disable softirqs, including timers from obtaining phba->hbalock */
10538 local_bh_disable();
10540 /* Flush all the mailbox commands in the mbox system */
10541 spin_lock_irqsave(&phba->hbalock, iflag);
10543 /* The pending mailbox command queue */
10544 list_splice_init(&phba->sli.mboxq, &completions);
10545 /* The outstanding active mailbox command */
10546 if (psli->mbox_active) {
10547 list_add_tail(&psli->mbox_active->list, &completions);
10548 psli->mbox_active = NULL;
10549 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10551 /* The completed mailbox command queue */
10552 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
10553 spin_unlock_irqrestore(&phba->hbalock, iflag);
10555 /* Enable softirqs again, done with phba->hbalock */
10558 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
10559 while (!list_empty(&completions)) {
10560 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
10561 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
10562 if (pmb->mbox_cmpl)
10563 pmb->mbox_cmpl(phba, pmb);
10568 * lpfc_sli_host_down - Vport cleanup function
10569 * @vport: Pointer to virtual port object.
10571 * lpfc_sli_host_down is called to clean up the resources
10572 * associated with a vport before destroying virtual
10573 * port data structures.
10574 * This function does following operations:
10575 * - Free discovery resources associated with this virtual
10577 * - Free iocbs associated with this virtual port in
10579 * - Send abort for all iocb commands associated with this
10580 * vport in txcmplq.
10582 * This function is called with no lock held and always returns 1.
10585 lpfc_sli_host_down(struct lpfc_vport *vport)
10587 LIST_HEAD(completions);
10588 struct lpfc_hba *phba = vport->phba;
10589 struct lpfc_sli *psli = &phba->sli;
10590 struct lpfc_queue *qp = NULL;
10591 struct lpfc_sli_ring *pring;
10592 struct lpfc_iocbq *iocb, *next_iocb;
10594 unsigned long flags = 0;
10595 uint16_t prev_pring_flag;
10597 lpfc_cleanup_discovery_resources(vport);
10599 spin_lock_irqsave(&phba->hbalock, flags);
10602 * Error everything on the txq since these iocbs
10603 * have not been given to the FW yet.
10604 * Also issue ABTS for everything on the txcmplq
10606 if (phba->sli_rev != LPFC_SLI_REV4) {
10607 for (i = 0; i < psli->num_rings; i++) {
10608 pring = &psli->sli3_ring[i];
10609 prev_pring_flag = pring->flag;
10610 /* Only slow rings */
10611 if (pring->ringno == LPFC_ELS_RING) {
10612 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10613 /* Set the lpfc data pending flag */
10614 set_bit(LPFC_DATA_READY, &phba->data_flags);
10616 list_for_each_entry_safe(iocb, next_iocb,
10617 &pring->txq, list) {
10618 if (iocb->vport != vport)
10620 list_move_tail(&iocb->list, &completions);
10622 list_for_each_entry_safe(iocb, next_iocb,
10623 &pring->txcmplq, list) {
10624 if (iocb->vport != vport)
10626 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10628 pring->flag = prev_pring_flag;
10631 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10635 if (pring == phba->sli4_hba.els_wq->pring) {
10636 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10637 /* Set the lpfc data pending flag */
10638 set_bit(LPFC_DATA_READY, &phba->data_flags);
10640 prev_pring_flag = pring->flag;
10641 spin_lock_irq(&pring->ring_lock);
10642 list_for_each_entry_safe(iocb, next_iocb,
10643 &pring->txq, list) {
10644 if (iocb->vport != vport)
10646 list_move_tail(&iocb->list, &completions);
10648 spin_unlock_irq(&pring->ring_lock);
10649 list_for_each_entry_safe(iocb, next_iocb,
10650 &pring->txcmplq, list) {
10651 if (iocb->vport != vport)
10653 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10655 pring->flag = prev_pring_flag;
10658 spin_unlock_irqrestore(&phba->hbalock, flags);
10660 /* Cancel all the IOCBs from the completions list */
10661 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10667 * lpfc_sli_hba_down - Resource cleanup function for the HBA
10668 * @phba: Pointer to HBA context object.
10670 * This function cleans up all iocb, buffers, mailbox commands
10671 * while shutting down the HBA. This function is called with no
10672 * lock held and always returns 1.
10673 * This function does the following to cleanup driver resources:
10674 * - Free discovery resources for each virtual port
10675 * - Cleanup any pending fabric iocbs
10676 * - Iterate through the iocb txq and free each entry
10678 * - Free up any buffer posted to the HBA
10679 * - Free mailbox commands in the mailbox queue.
10682 lpfc_sli_hba_down(struct lpfc_hba *phba)
10684 LIST_HEAD(completions);
10685 struct lpfc_sli *psli = &phba->sli;
10686 struct lpfc_queue *qp = NULL;
10687 struct lpfc_sli_ring *pring;
10688 struct lpfc_dmabuf *buf_ptr;
10689 unsigned long flags = 0;
10692 /* Shutdown the mailbox command sub-system */
10693 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
10695 lpfc_hba_down_prep(phba);
10697 /* Disable softirqs, including timers from obtaining phba->hbalock */
10698 local_bh_disable();
10700 lpfc_fabric_abort_hba(phba);
10702 spin_lock_irqsave(&phba->hbalock, flags);
10705 * Error everything on the txq since these iocbs
10706 * have not been given to the FW yet.
10708 if (phba->sli_rev != LPFC_SLI_REV4) {
10709 for (i = 0; i < psli->num_rings; i++) {
10710 pring = &psli->sli3_ring[i];
10711 /* Only slow rings */
10712 if (pring->ringno == LPFC_ELS_RING) {
10713 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10714 /* Set the lpfc data pending flag */
10715 set_bit(LPFC_DATA_READY, &phba->data_flags);
10717 list_splice_init(&pring->txq, &completions);
10720 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10724 spin_lock_irq(&pring->ring_lock);
10725 list_splice_init(&pring->txq, &completions);
10726 spin_unlock_irq(&pring->ring_lock);
10727 if (pring == phba->sli4_hba.els_wq->pring) {
10728 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10729 /* Set the lpfc data pending flag */
10730 set_bit(LPFC_DATA_READY, &phba->data_flags);
10734 spin_unlock_irqrestore(&phba->hbalock, flags);
10736 /* Cancel all the IOCBs from the completions list */
10737 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10740 spin_lock_irqsave(&phba->hbalock, flags);
10741 list_splice_init(&phba->elsbuf, &completions);
10742 phba->elsbuf_cnt = 0;
10743 phba->elsbuf_prev_cnt = 0;
10744 spin_unlock_irqrestore(&phba->hbalock, flags);
10746 while (!list_empty(&completions)) {
10747 list_remove_head(&completions, buf_ptr,
10748 struct lpfc_dmabuf, list);
10749 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10753 /* Enable softirqs again, done with phba->hbalock */
10756 /* Return any active mbox cmds */
10757 del_timer_sync(&psli->mbox_tmo);
10759 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
10760 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10761 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
10767 * lpfc_sli_pcimem_bcopy - SLI memory copy function
10768 * @srcp: Source memory pointer.
10769 * @destp: Destination memory pointer.
10770 * @cnt: Number of words required to be copied.
10772 * This function is used for copying data between driver memory
10773 * and the SLI memory. This function also changes the endianness
10774 * of each word if native endianness is different from SLI
10775 * endianness. This function can be called with or without
10779 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10781 uint32_t *src = srcp;
10782 uint32_t *dest = destp;
10786 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10788 ldata = le32_to_cpu(ldata);
10797 * lpfc_sli_bemem_bcopy - SLI memory copy function
10798 * @srcp: Source memory pointer.
10799 * @destp: Destination memory pointer.
10800 * @cnt: Number of words required to be copied.
10802 * This function is used for copying data between a data structure
10803 * with big endian representation to local endianness.
10804 * This function can be called with or without lock.
10807 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10809 uint32_t *src = srcp;
10810 uint32_t *dest = destp;
10814 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10816 ldata = be32_to_cpu(ldata);
10824 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
10825 * @phba: Pointer to HBA context object.
10826 * @pring: Pointer to driver SLI ring object.
10827 * @mp: Pointer to driver buffer object.
10829 * This function is called with no lock held.
10830 * It always return zero after adding the buffer to the postbufq
10834 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10835 struct lpfc_dmabuf *mp)
10837 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10839 spin_lock_irq(&phba->hbalock);
10840 list_add_tail(&mp->list, &pring->postbufq);
10841 pring->postbufq_cnt++;
10842 spin_unlock_irq(&phba->hbalock);
10847 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
10848 * @phba: Pointer to HBA context object.
10850 * When HBQ is enabled, buffers are searched based on tags. This function
10851 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10852 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10853 * does not conflict with tags of buffer posted for unsolicited events.
10854 * The function returns the allocated tag. The function is called with
10858 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10860 spin_lock_irq(&phba->hbalock);
10861 phba->buffer_tag_count++;
10863 * Always set the QUE_BUFTAG_BIT to distiguish between
10864 * a tag assigned by HBQ.
10866 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10867 spin_unlock_irq(&phba->hbalock);
10868 return phba->buffer_tag_count;
10872 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
10873 * @phba: Pointer to HBA context object.
10874 * @pring: Pointer to driver SLI ring object.
10875 * @tag: Buffer tag.
10877 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
10878 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
10879 * iocb is posted to the response ring with the tag of the buffer.
10880 * This function searches the pring->postbufq list using the tag
10881 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
10882 * iocb. If the buffer is found then lpfc_dmabuf object of the
10883 * buffer is returned to the caller else NULL is returned.
10884 * This function is called with no lock held.
10886 struct lpfc_dmabuf *
10887 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10890 struct lpfc_dmabuf *mp, *next_mp;
10891 struct list_head *slp = &pring->postbufq;
10893 /* Search postbufq, from the beginning, looking for a match on tag */
10894 spin_lock_irq(&phba->hbalock);
10895 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10896 if (mp->buffer_tag == tag) {
10897 list_del_init(&mp->list);
10898 pring->postbufq_cnt--;
10899 spin_unlock_irq(&phba->hbalock);
10904 spin_unlock_irq(&phba->hbalock);
10905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10906 "0402 Cannot find virtual addr for buffer tag on "
10907 "ring %d Data x%lx x%p x%p x%x\n",
10908 pring->ringno, (unsigned long) tag,
10909 slp->next, slp->prev, pring->postbufq_cnt);
10915 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
10916 * @phba: Pointer to HBA context object.
10917 * @pring: Pointer to driver SLI ring object.
10918 * @phys: DMA address of the buffer.
10920 * This function searches the buffer list using the dma_address
10921 * of unsolicited event to find the driver's lpfc_dmabuf object
10922 * corresponding to the dma_address. The function returns the
10923 * lpfc_dmabuf object if a buffer is found else it returns NULL.
10924 * This function is called by the ct and els unsolicited event
10925 * handlers to get the buffer associated with the unsolicited
10928 * This function is called with no lock held.
10930 struct lpfc_dmabuf *
10931 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10934 struct lpfc_dmabuf *mp, *next_mp;
10935 struct list_head *slp = &pring->postbufq;
10937 /* Search postbufq, from the beginning, looking for a match on phys */
10938 spin_lock_irq(&phba->hbalock);
10939 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10940 if (mp->phys == phys) {
10941 list_del_init(&mp->list);
10942 pring->postbufq_cnt--;
10943 spin_unlock_irq(&phba->hbalock);
10948 spin_unlock_irq(&phba->hbalock);
10949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10950 "0410 Cannot find virtual addr for mapped buf on "
10951 "ring %d Data x%llx x%p x%p x%x\n",
10952 pring->ringno, (unsigned long long)phys,
10953 slp->next, slp->prev, pring->postbufq_cnt);
10958 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
10959 * @phba: Pointer to HBA context object.
10960 * @cmdiocb: Pointer to driver command iocb object.
10961 * @rspiocb: Pointer to driver response iocb object.
10963 * This function is the completion handler for the abort iocbs for
10964 * ELS commands. This function is called from the ELS ring event
10965 * handler with no lock held. This function frees memory resources
10966 * associated with the abort iocb.
10969 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10970 struct lpfc_iocbq *rspiocb)
10972 IOCB_t *irsp = &rspiocb->iocb;
10973 uint16_t abort_iotag, abort_context;
10974 struct lpfc_iocbq *abort_iocb = NULL;
10976 if (irsp->ulpStatus) {
10979 * Assume that the port already completed and returned, or
10980 * will return the iocb. Just Log the message.
10982 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
10983 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
10985 spin_lock_irq(&phba->hbalock);
10986 if (phba->sli_rev < LPFC_SLI_REV4) {
10987 if (irsp->ulpCommand == CMD_ABORT_XRI_CX &&
10988 irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
10989 irsp->un.ulpWord[4] == IOERR_ABORT_REQUESTED) {
10990 spin_unlock_irq(&phba->hbalock);
10993 if (abort_iotag != 0 &&
10994 abort_iotag <= phba->sli.last_iotag)
10996 phba->sli.iocbq_lookup[abort_iotag];
10998 /* For sli4 the abort_tag is the XRI,
10999 * so the abort routine puts the iotag of the iocb
11000 * being aborted in the context field of the abort
11003 abort_iocb = phba->sli.iocbq_lookup[abort_context];
11005 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
11006 "0327 Cannot abort els iocb %p "
11007 "with tag %x context %x, abort status %x, "
11009 abort_iocb, abort_iotag, abort_context,
11010 irsp->ulpStatus, irsp->un.ulpWord[4]);
11012 spin_unlock_irq(&phba->hbalock);
11015 lpfc_sli_release_iocbq(phba, cmdiocb);
11020 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
11021 * @phba: Pointer to HBA context object.
11022 * @cmdiocb: Pointer to driver command iocb object.
11023 * @rspiocb: Pointer to driver response iocb object.
11025 * The function is called from SLI ring event handler with no
11026 * lock held. This function is the completion handler for ELS commands
11027 * which are aborted. The function frees memory resources used for
11028 * the aborted ELS commands.
11031 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11032 struct lpfc_iocbq *rspiocb)
11034 IOCB_t *irsp = &rspiocb->iocb;
11036 /* ELS cmd tag <ulpIoTag> completes */
11037 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11038 "0139 Ignoring ELS cmd tag x%x completion Data: "
11040 irsp->ulpIoTag, irsp->ulpStatus,
11041 irsp->un.ulpWord[4], irsp->ulpTimeout);
11042 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
11043 lpfc_ct_free_iocb(phba, cmdiocb);
11045 lpfc_els_free_iocb(phba, cmdiocb);
11050 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
11051 * @phba: Pointer to HBA context object.
11052 * @pring: Pointer to driver SLI ring object.
11053 * @cmdiocb: Pointer to driver command iocb object.
11055 * This function issues an abort iocb for the provided command iocb down to
11056 * the port. Other than the case the outstanding command iocb is an abort
11057 * request, this function issues abort out unconditionally. This function is
11058 * called with hbalock held. The function returns 0 when it fails due to
11059 * memory allocation failure or when the command iocb is an abort request.
11062 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11063 struct lpfc_iocbq *cmdiocb)
11065 struct lpfc_vport *vport = cmdiocb->vport;
11066 struct lpfc_iocbq *abtsiocbp;
11067 IOCB_t *icmd = NULL;
11068 IOCB_t *iabt = NULL;
11070 unsigned long iflags;
11071 struct lpfc_nodelist *ndlp;
11073 lockdep_assert_held(&phba->hbalock);
11076 * There are certain command types we don't want to abort. And we
11077 * don't want to abort commands that are already in the process of
11080 icmd = &cmdiocb->iocb;
11081 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11082 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11083 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11086 /* issue ABTS for this IOCB based on iotag */
11087 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11088 if (abtsiocbp == NULL)
11091 /* This signals the response to set the correct status
11092 * before calling the completion handler
11094 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11096 iabt = &abtsiocbp->iocb;
11097 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
11098 iabt->un.acxri.abortContextTag = icmd->ulpContext;
11099 if (phba->sli_rev == LPFC_SLI_REV4) {
11100 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
11101 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
11103 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
11104 if (pring->ringno == LPFC_ELS_RING) {
11105 ndlp = (struct lpfc_nodelist *)(cmdiocb->context1);
11106 iabt->un.acxri.abortContextTag = ndlp->nlp_rpi;
11110 iabt->ulpClass = icmd->ulpClass;
11112 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11113 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
11114 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
11115 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
11116 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
11117 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
11119 if (phba->link_state >= LPFC_LINK_UP)
11120 iabt->ulpCommand = CMD_ABORT_XRI_CN;
11122 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
11124 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
11125 abtsiocbp->vport = vport;
11127 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
11128 "0339 Abort xri x%x, original iotag x%x, "
11129 "abort cmd iotag x%x\n",
11130 iabt->un.acxri.abortIoTag,
11131 iabt->un.acxri.abortContextTag,
11134 if (phba->sli_rev == LPFC_SLI_REV4) {
11135 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
11136 if (unlikely(pring == NULL))
11138 /* Note: both hbalock and ring_lock need to be set here */
11139 spin_lock_irqsave(&pring->ring_lock, iflags);
11140 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11142 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11144 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11149 __lpfc_sli_release_iocbq(phba, abtsiocbp);
11152 * Caller to this routine should check for IOCB_ERROR
11153 * and handle it properly. This routine no longer removes
11154 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11160 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
11161 * @phba: Pointer to HBA context object.
11162 * @pring: Pointer to driver SLI ring object.
11163 * @cmdiocb: Pointer to driver command iocb object.
11165 * This function issues an abort iocb for the provided command iocb. In case
11166 * of unloading, the abort iocb will not be issued to commands on the ELS
11167 * ring. Instead, the callback function shall be changed to those commands
11168 * so that nothing happens when them finishes. This function is called with
11169 * hbalock held. The function returns 0 when the command iocb is an abort
11173 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11174 struct lpfc_iocbq *cmdiocb)
11176 struct lpfc_vport *vport = cmdiocb->vport;
11177 int retval = IOCB_ERROR;
11178 IOCB_t *icmd = NULL;
11180 lockdep_assert_held(&phba->hbalock);
11183 * There are certain command types we don't want to abort. And we
11184 * don't want to abort commands that are already in the process of
11187 icmd = &cmdiocb->iocb;
11188 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11189 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11190 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11194 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11195 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11197 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11198 goto abort_iotag_exit;
11202 * If we're unloading, don't abort iocb on the ELS ring, but change
11203 * the callback so that nothing happens when it finishes.
11205 if ((vport->load_flag & FC_UNLOADING) &&
11206 (pring->ringno == LPFC_ELS_RING)) {
11207 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11208 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11210 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11211 goto abort_iotag_exit;
11214 /* Now, we try to issue the abort to the cmdiocb out */
11215 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
11219 * Caller to this routine should check for IOCB_ERROR
11220 * and handle it properly. This routine no longer removes
11221 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11227 * lpfc_sli4_abort_nvme_io - Issue abort for a command iocb
11228 * @phba: Pointer to HBA context object.
11229 * @pring: Pointer to driver SLI ring object.
11230 * @cmdiocb: Pointer to driver command iocb object.
11232 * This function issues an abort iocb for the provided command iocb down to
11233 * the port. Other than the case the outstanding command iocb is an abort
11234 * request, this function issues abort out unconditionally. This function is
11235 * called with hbalock held. The function returns 0 when it fails due to
11236 * memory allocation failure or when the command iocb is an abort request.
11239 lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11240 struct lpfc_iocbq *cmdiocb)
11242 struct lpfc_vport *vport = cmdiocb->vport;
11243 struct lpfc_iocbq *abtsiocbp;
11244 union lpfc_wqe128 *abts_wqe;
11248 * There are certain command types we don't want to abort. And we
11249 * don't want to abort commands that are already in the process of
11252 if (cmdiocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
11253 cmdiocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN ||
11254 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11257 /* issue ABTS for this io based on iotag */
11258 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11259 if (abtsiocbp == NULL)
11262 /* This signals the response to set the correct status
11263 * before calling the completion handler
11265 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11267 /* Complete prepping the abort wqe and issue to the FW. */
11268 abts_wqe = &abtsiocbp->wqe;
11269 bf_set(abort_cmd_ia, &abts_wqe->abort_cmd, 0);
11270 bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG);
11272 /* Explicitly set reserved fields to zero.*/
11273 abts_wqe->abort_cmd.rsrvd4 = 0;
11274 abts_wqe->abort_cmd.rsrvd5 = 0;
11276 /* WQE Common - word 6. Context is XRI tag. Set 0. */
11277 bf_set(wqe_xri_tag, &abts_wqe->abort_cmd.wqe_com, 0);
11278 bf_set(wqe_ctxt_tag, &abts_wqe->abort_cmd.wqe_com, 0);
11281 bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0);
11282 bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
11283 bf_set(wqe_class, &abts_wqe->abort_cmd.wqe_com,
11284 cmdiocb->iocb.ulpClass);
11286 /* word 8 - tell the FW to abort the IO associated with this
11287 * outstanding exchange ID.
11289 abts_wqe->abort_cmd.wqe_com.abort_tag = cmdiocb->sli4_xritag;
11291 /* word 9 - this is the iotag for the abts_wqe completion. */
11292 bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com,
11296 bf_set(wqe_wqid, &abts_wqe->abort_cmd.wqe_com, cmdiocb->hba_wqidx);
11297 bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1);
11298 bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
11301 bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND);
11302 bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1);
11303 bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
11305 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11306 abtsiocbp->iocb_flag |= LPFC_IO_NVME;
11307 abtsiocbp->vport = vport;
11308 abtsiocbp->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl;
11309 retval = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abtsiocbp);
11311 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
11312 "6147 Failed abts issue_wqe with status x%x "
11314 retval, cmdiocb->sli4_xritag);
11315 lpfc_sli_release_iocbq(phba, abtsiocbp);
11319 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
11320 "6148 Drv Abort NVME Request Issued for "
11321 "ox_id x%x on reqtag x%x\n",
11322 cmdiocb->sli4_xritag,
11329 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
11330 * @phba: pointer to lpfc HBA data structure.
11332 * This routine will abort all pending and outstanding iocbs to an HBA.
11335 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
11337 struct lpfc_sli *psli = &phba->sli;
11338 struct lpfc_sli_ring *pring;
11339 struct lpfc_queue *qp = NULL;
11342 if (phba->sli_rev != LPFC_SLI_REV4) {
11343 for (i = 0; i < psli->num_rings; i++) {
11344 pring = &psli->sli3_ring[i];
11345 lpfc_sli_abort_iocb_ring(phba, pring);
11349 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11353 lpfc_sli_abort_iocb_ring(phba, pring);
11358 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
11359 * @iocbq: Pointer to driver iocb object.
11360 * @vport: Pointer to driver virtual port object.
11361 * @tgt_id: SCSI ID of the target.
11362 * @lun_id: LUN ID of the scsi device.
11363 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
11365 * This function acts as an iocb filter for functions which abort or count
11366 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
11367 * 0 if the filtering criteria is met for the given iocb and will return
11368 * 1 if the filtering criteria is not met.
11369 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
11370 * given iocb is for the SCSI device specified by vport, tgt_id and
11371 * lun_id parameter.
11372 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
11373 * given iocb is for the SCSI target specified by vport and tgt_id
11375 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
11376 * given iocb is for the SCSI host associated with the given vport.
11377 * This function is called with no locks held.
11380 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
11381 uint16_t tgt_id, uint64_t lun_id,
11382 lpfc_ctx_cmd ctx_cmd)
11384 struct lpfc_scsi_buf *lpfc_cmd;
11387 if (iocbq->vport != vport)
11390 if (!(iocbq->iocb_flag & LPFC_IO_FCP) ||
11391 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ))
11394 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11396 if (lpfc_cmd->pCmd == NULL)
11401 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11402 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
11403 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
11407 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11408 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
11411 case LPFC_CTX_HOST:
11415 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
11416 __func__, ctx_cmd);
11424 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
11425 * @vport: Pointer to virtual port.
11426 * @tgt_id: SCSI ID of the target.
11427 * @lun_id: LUN ID of the scsi device.
11428 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11430 * This function returns number of FCP commands pending for the vport.
11431 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
11432 * commands pending on the vport associated with SCSI device specified
11433 * by tgt_id and lun_id parameters.
11434 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
11435 * commands pending on the vport associated with SCSI target specified
11436 * by tgt_id parameter.
11437 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
11438 * commands pending on the vport.
11439 * This function returns the number of iocbs which satisfy the filter.
11440 * This function is called without any lock held.
11443 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
11444 lpfc_ctx_cmd ctx_cmd)
11446 struct lpfc_hba *phba = vport->phba;
11447 struct lpfc_iocbq *iocbq;
11450 spin_lock_irq(&phba->hbalock);
11451 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
11452 iocbq = phba->sli.iocbq_lookup[i];
11454 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
11458 spin_unlock_irq(&phba->hbalock);
11464 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
11465 * @phba: Pointer to HBA context object
11466 * @cmdiocb: Pointer to command iocb object.
11467 * @rspiocb: Pointer to response iocb object.
11469 * This function is called when an aborted FCP iocb completes. This
11470 * function is called by the ring event handler with no lock held.
11471 * This function frees the iocb.
11474 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11475 struct lpfc_iocbq *rspiocb)
11477 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11478 "3096 ABORT_XRI_CN completing on rpi x%x "
11479 "original iotag x%x, abort cmd iotag x%x "
11480 "status 0x%x, reason 0x%x\n",
11481 cmdiocb->iocb.un.acxri.abortContextTag,
11482 cmdiocb->iocb.un.acxri.abortIoTag,
11483 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
11484 rspiocb->iocb.un.ulpWord[4]);
11485 lpfc_sli_release_iocbq(phba, cmdiocb);
11490 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
11491 * @vport: Pointer to virtual port.
11492 * @pring: Pointer to driver SLI ring object.
11493 * @tgt_id: SCSI ID of the target.
11494 * @lun_id: LUN ID of the scsi device.
11495 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11497 * This function sends an abort command for every SCSI command
11498 * associated with the given virtual port pending on the ring
11499 * filtered by lpfc_sli_validate_fcp_iocb function.
11500 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
11501 * FCP iocbs associated with lun specified by tgt_id and lun_id
11503 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
11504 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11505 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
11506 * FCP iocbs associated with virtual port.
11507 * This function returns number of iocbs it failed to abort.
11508 * This function is called with no locks held.
11511 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11512 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
11514 struct lpfc_hba *phba = vport->phba;
11515 struct lpfc_iocbq *iocbq;
11516 struct lpfc_iocbq *abtsiocb;
11517 struct lpfc_sli_ring *pring_s4;
11518 IOCB_t *cmd = NULL;
11519 int errcnt = 0, ret_val = 0;
11522 /* all I/Os are in process of being flushed */
11523 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH)
11526 for (i = 1; i <= phba->sli.last_iotag; i++) {
11527 iocbq = phba->sli.iocbq_lookup[i];
11529 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11534 * If the iocbq is already being aborted, don't take a second
11535 * action, but do count it.
11537 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11540 /* issue ABTS for this IOCB based on iotag */
11541 abtsiocb = lpfc_sli_get_iocbq(phba);
11542 if (abtsiocb == NULL) {
11547 /* indicate the IO is being aborted by the driver. */
11548 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11550 cmd = &iocbq->iocb;
11551 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11552 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
11553 if (phba->sli_rev == LPFC_SLI_REV4)
11554 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
11556 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
11557 abtsiocb->iocb.ulpLe = 1;
11558 abtsiocb->iocb.ulpClass = cmd->ulpClass;
11559 abtsiocb->vport = vport;
11561 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11562 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
11563 if (iocbq->iocb_flag & LPFC_IO_FCP)
11564 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
11565 if (iocbq->iocb_flag & LPFC_IO_FOF)
11566 abtsiocb->iocb_flag |= LPFC_IO_FOF;
11568 if (lpfc_is_link_up(phba))
11569 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11571 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11573 /* Setup callback routine and issue the command. */
11574 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11575 if (phba->sli_rev == LPFC_SLI_REV4) {
11576 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11579 ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11582 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
11584 if (ret_val == IOCB_ERROR) {
11585 lpfc_sli_release_iocbq(phba, abtsiocb);
11595 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
11596 * @vport: Pointer to virtual port.
11597 * @pring: Pointer to driver SLI ring object.
11598 * @tgt_id: SCSI ID of the target.
11599 * @lun_id: LUN ID of the scsi device.
11600 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11602 * This function sends an abort command for every SCSI command
11603 * associated with the given virtual port pending on the ring
11604 * filtered by lpfc_sli_validate_fcp_iocb function.
11605 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
11606 * FCP iocbs associated with lun specified by tgt_id and lun_id
11608 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
11609 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11610 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
11611 * FCP iocbs associated with virtual port.
11612 * This function returns number of iocbs it aborted .
11613 * This function is called with no locks held right after a taskmgmt
11617 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11618 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
11620 struct lpfc_hba *phba = vport->phba;
11621 struct lpfc_scsi_buf *lpfc_cmd;
11622 struct lpfc_iocbq *abtsiocbq;
11623 struct lpfc_nodelist *ndlp;
11624 struct lpfc_iocbq *iocbq;
11626 int sum, i, ret_val;
11627 unsigned long iflags;
11628 struct lpfc_sli_ring *pring_s4;
11630 spin_lock_irqsave(&phba->hbalock, iflags);
11632 /* all I/Os are in process of being flushed */
11633 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
11634 spin_unlock_irqrestore(&phba->hbalock, iflags);
11639 for (i = 1; i <= phba->sli.last_iotag; i++) {
11640 iocbq = phba->sli.iocbq_lookup[i];
11642 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11647 * If the iocbq is already being aborted, don't take a second
11648 * action, but do count it.
11650 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11653 /* issue ABTS for this IOCB based on iotag */
11654 abtsiocbq = __lpfc_sli_get_iocbq(phba);
11655 if (abtsiocbq == NULL)
11658 icmd = &iocbq->iocb;
11659 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11660 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11661 if (phba->sli_rev == LPFC_SLI_REV4)
11662 abtsiocbq->iocb.un.acxri.abortIoTag =
11663 iocbq->sli4_xritag;
11665 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11666 abtsiocbq->iocb.ulpLe = 1;
11667 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11668 abtsiocbq->vport = vport;
11670 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11671 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
11672 if (iocbq->iocb_flag & LPFC_IO_FCP)
11673 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
11674 if (iocbq->iocb_flag & LPFC_IO_FOF)
11675 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
11677 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11678 ndlp = lpfc_cmd->rdata->pnode;
11680 if (lpfc_is_link_up(phba) &&
11681 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
11682 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11684 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11686 /* Setup callback routine and issue the command. */
11687 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11690 * Indicate the IO is being aborted by the driver and set
11691 * the caller's flag into the aborted IO.
11693 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11695 if (phba->sli_rev == LPFC_SLI_REV4) {
11696 pring_s4 = lpfc_sli4_calc_ring(phba, abtsiocbq);
11699 /* Note: both hbalock and ring_lock must be set here */
11700 spin_lock(&pring_s4->ring_lock);
11701 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11703 spin_unlock(&pring_s4->ring_lock);
11705 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11710 if (ret_val == IOCB_ERROR)
11711 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11715 spin_unlock_irqrestore(&phba->hbalock, iflags);
11720 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
11721 * @phba: Pointer to HBA context object.
11722 * @cmdiocbq: Pointer to command iocb.
11723 * @rspiocbq: Pointer to response iocb.
11725 * This function is the completion handler for iocbs issued using
11726 * lpfc_sli_issue_iocb_wait function. This function is called by the
11727 * ring event handler function without any lock held. This function
11728 * can be called from both worker thread context and interrupt
11729 * context. This function also can be called from other thread which
11730 * cleans up the SLI layer objects.
11731 * This function copy the contents of the response iocb to the
11732 * response iocb memory object provided by the caller of
11733 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11734 * sleeps for the iocb completion.
11737 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11738 struct lpfc_iocbq *cmdiocbq,
11739 struct lpfc_iocbq *rspiocbq)
11741 wait_queue_head_t *pdone_q;
11742 unsigned long iflags;
11743 struct lpfc_scsi_buf *lpfc_cmd;
11745 spin_lock_irqsave(&phba->hbalock, iflags);
11746 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11749 * A time out has occurred for the iocb. If a time out
11750 * completion handler has been supplied, call it. Otherwise,
11751 * just free the iocbq.
11754 spin_unlock_irqrestore(&phba->hbalock, iflags);
11755 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11756 cmdiocbq->wait_iocb_cmpl = NULL;
11757 if (cmdiocbq->iocb_cmpl)
11758 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11760 lpfc_sli_release_iocbq(phba, cmdiocbq);
11764 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11765 if (cmdiocbq->context2 && rspiocbq)
11766 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11767 &rspiocbq->iocb, sizeof(IOCB_t));
11769 /* Set the exchange busy flag for task management commands */
11770 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11771 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11772 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
11774 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
11777 pdone_q = cmdiocbq->context_un.wait_queue;
11780 spin_unlock_irqrestore(&phba->hbalock, iflags);
11785 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11786 * @phba: Pointer to HBA context object..
11787 * @piocbq: Pointer to command iocb.
11788 * @flag: Flag to test.
11790 * This routine grabs the hbalock and then test the iocb_flag to
11791 * see if the passed in flag is set.
11793 * 1 if flag is set.
11794 * 0 if flag is not set.
11797 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11798 struct lpfc_iocbq *piocbq, uint32_t flag)
11800 unsigned long iflags;
11803 spin_lock_irqsave(&phba->hbalock, iflags);
11804 ret = piocbq->iocb_flag & flag;
11805 spin_unlock_irqrestore(&phba->hbalock, iflags);
11811 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
11812 * @phba: Pointer to HBA context object..
11813 * @pring: Pointer to sli ring.
11814 * @piocb: Pointer to command iocb.
11815 * @prspiocbq: Pointer to response iocb.
11816 * @timeout: Timeout in number of seconds.
11818 * This function issues the iocb to firmware and waits for the
11819 * iocb to complete. The iocb_cmpl field of the shall be used
11820 * to handle iocbs which time out. If the field is NULL, the
11821 * function shall free the iocbq structure. If more clean up is
11822 * needed, the caller is expected to provide a completion function
11823 * that will provide the needed clean up. If the iocb command is
11824 * not completed within timeout seconds, the function will either
11825 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11826 * completion function set in the iocb_cmpl field and then return
11827 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11828 * resources if this function returns IOCB_TIMEDOUT.
11829 * The function waits for the iocb completion using an
11830 * non-interruptible wait.
11831 * This function will sleep while waiting for iocb completion.
11832 * So, this function should not be called from any context which
11833 * does not allow sleeping. Due to the same reason, this function
11834 * cannot be called with interrupt disabled.
11835 * This function assumes that the iocb completions occur while
11836 * this function sleep. So, this function cannot be called from
11837 * the thread which process iocb completion for this ring.
11838 * This function clears the iocb_flag of the iocb object before
11839 * issuing the iocb and the iocb completion handler sets this
11840 * flag and wakes this thread when the iocb completes.
11841 * The contents of the response iocb will be copied to prspiocbq
11842 * by the completion handler when the command completes.
11843 * This function returns IOCB_SUCCESS when success.
11844 * This function is called with no lock held.
11847 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
11848 uint32_t ring_number,
11849 struct lpfc_iocbq *piocb,
11850 struct lpfc_iocbq *prspiocbq,
11853 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11854 long timeleft, timeout_req = 0;
11855 int retval = IOCB_SUCCESS;
11857 struct lpfc_iocbq *iocb;
11859 int txcmplq_cnt = 0;
11860 struct lpfc_sli_ring *pring;
11861 unsigned long iflags;
11862 bool iocb_completed = true;
11864 if (phba->sli_rev >= LPFC_SLI_REV4)
11865 pring = lpfc_sli4_calc_ring(phba, piocb);
11867 pring = &phba->sli.sli3_ring[ring_number];
11869 * If the caller has provided a response iocbq buffer, then context2
11870 * is NULL or its an error.
11873 if (piocb->context2)
11875 piocb->context2 = prspiocbq;
11878 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
11879 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11880 piocb->context_un.wait_queue = &done_q;
11881 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
11883 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11884 if (lpfc_readl(phba->HCregaddr, &creg_val))
11886 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11887 writel(creg_val, phba->HCregaddr);
11888 readl(phba->HCregaddr); /* flush */
11891 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11892 SLI_IOCB_RET_IOCB);
11893 if (retval == IOCB_SUCCESS) {
11894 timeout_req = msecs_to_jiffies(timeout * 1000);
11895 timeleft = wait_event_timeout(done_q,
11896 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
11898 spin_lock_irqsave(&phba->hbalock, iflags);
11899 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
11902 * IOCB timed out. Inform the wake iocb wait
11903 * completion function and set local status
11906 iocb_completed = false;
11907 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11909 spin_unlock_irqrestore(&phba->hbalock, iflags);
11910 if (iocb_completed) {
11911 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11912 "0331 IOCB wake signaled\n");
11913 /* Note: we are not indicating if the IOCB has a success
11914 * status or not - that's for the caller to check.
11915 * IOCB_SUCCESS means just that the command was sent and
11916 * completed. Not that it completed successfully.
11918 } else if (timeleft == 0) {
11919 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11920 "0338 IOCB wait timeout error - no "
11921 "wake response Data x%x\n", timeout);
11922 retval = IOCB_TIMEDOUT;
11924 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11925 "0330 IOCB wake NOT set, "
11927 timeout, (timeleft / jiffies));
11928 retval = IOCB_TIMEDOUT;
11930 } else if (retval == IOCB_BUSY) {
11931 if (phba->cfg_log_verbose & LOG_SLI) {
11932 list_for_each_entry(iocb, &pring->txq, list) {
11935 list_for_each_entry(iocb, &pring->txcmplq, list) {
11938 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11939 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11940 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
11944 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11945 "0332 IOCB wait issue failed, Data x%x\n",
11947 retval = IOCB_ERROR;
11950 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11951 if (lpfc_readl(phba->HCregaddr, &creg_val))
11953 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
11954 writel(creg_val, phba->HCregaddr);
11955 readl(phba->HCregaddr); /* flush */
11959 piocb->context2 = NULL;
11961 piocb->context_un.wait_queue = NULL;
11962 piocb->iocb_cmpl = NULL;
11967 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
11968 * @phba: Pointer to HBA context object.
11969 * @pmboxq: Pointer to driver mailbox object.
11970 * @timeout: Timeout in number of seconds.
11972 * This function issues the mailbox to firmware and waits for the
11973 * mailbox command to complete. If the mailbox command is not
11974 * completed within timeout seconds, it returns MBX_TIMEOUT.
11975 * The function waits for the mailbox completion using an
11976 * interruptible wait. If the thread is woken up due to a
11977 * signal, MBX_TIMEOUT error is returned to the caller. Caller
11978 * should not free the mailbox resources, if this function returns
11980 * This function will sleep while waiting for mailbox completion.
11981 * So, this function should not be called from any context which
11982 * does not allow sleeping. Due to the same reason, this function
11983 * cannot be called with interrupt disabled.
11984 * This function assumes that the mailbox completion occurs while
11985 * this function sleep. So, this function cannot be called from
11986 * the worker thread which processes mailbox completion.
11987 * This function is called in the context of HBA management
11989 * This function returns MBX_SUCCESS when successful.
11990 * This function is called with no lock held.
11993 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
11996 struct completion mbox_done;
11998 unsigned long flag;
12000 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
12001 /* setup wake call as IOCB callback */
12002 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
12004 /* setup context3 field to pass wait_queue pointer to wake function */
12005 init_completion(&mbox_done);
12006 pmboxq->context3 = &mbox_done;
12007 /* now issue the command */
12008 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
12009 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
12010 wait_for_completion_timeout(&mbox_done,
12011 msecs_to_jiffies(timeout * 1000));
12013 spin_lock_irqsave(&phba->hbalock, flag);
12014 pmboxq->context3 = NULL;
12016 * if LPFC_MBX_WAKE flag is set the mailbox is completed
12017 * else do not free the resources.
12019 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
12020 retval = MBX_SUCCESS;
12022 retval = MBX_TIMEOUT;
12023 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12025 spin_unlock_irqrestore(&phba->hbalock, flag);
12031 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
12032 * @phba: Pointer to HBA context.
12034 * This function is called to shutdown the driver's mailbox sub-system.
12035 * It first marks the mailbox sub-system is in a block state to prevent
12036 * the asynchronous mailbox command from issued off the pending mailbox
12037 * command queue. If the mailbox command sub-system shutdown is due to
12038 * HBA error conditions such as EEH or ERATT, this routine shall invoke
12039 * the mailbox sub-system flush routine to forcefully bring down the
12040 * mailbox sub-system. Otherwise, if it is due to normal condition (such
12041 * as with offline or HBA function reset), this routine will wait for the
12042 * outstanding mailbox command to complete before invoking the mailbox
12043 * sub-system flush routine to gracefully bring down mailbox sub-system.
12046 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
12048 struct lpfc_sli *psli = &phba->sli;
12049 unsigned long timeout;
12051 if (mbx_action == LPFC_MBX_NO_WAIT) {
12052 /* delay 100ms for port state */
12054 lpfc_sli_mbox_sys_flush(phba);
12057 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
12059 /* Disable softirqs, including timers from obtaining phba->hbalock */
12060 local_bh_disable();
12062 spin_lock_irq(&phba->hbalock);
12063 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
12065 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
12066 /* Determine how long we might wait for the active mailbox
12067 * command to be gracefully completed by firmware.
12069 if (phba->sli.mbox_active)
12070 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
12071 phba->sli.mbox_active) *
12073 spin_unlock_irq(&phba->hbalock);
12075 /* Enable softirqs again, done with phba->hbalock */
12078 while (phba->sli.mbox_active) {
12079 /* Check active mailbox complete status every 2ms */
12081 if (time_after(jiffies, timeout))
12082 /* Timeout, let the mailbox flush routine to
12083 * forcefully release active mailbox command
12088 spin_unlock_irq(&phba->hbalock);
12090 /* Enable softirqs again, done with phba->hbalock */
12094 lpfc_sli_mbox_sys_flush(phba);
12098 * lpfc_sli_eratt_read - read sli-3 error attention events
12099 * @phba: Pointer to HBA context.
12101 * This function is called to read the SLI3 device error attention registers
12102 * for possible error attention events. The caller must hold the hostlock
12103 * with spin_lock_irq().
12105 * This function returns 1 when there is Error Attention in the Host Attention
12106 * Register and returns 0 otherwise.
12109 lpfc_sli_eratt_read(struct lpfc_hba *phba)
12113 /* Read chip Host Attention (HA) register */
12114 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12117 if (ha_copy & HA_ERATT) {
12118 /* Read host status register to retrieve error event */
12119 if (lpfc_sli_read_hs(phba))
12122 /* Check if there is a deferred error condition is active */
12123 if ((HS_FFER1 & phba->work_hs) &&
12124 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12125 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
12126 phba->hba_flag |= DEFER_ERATT;
12127 /* Clear all interrupt enable conditions */
12128 writel(0, phba->HCregaddr);
12129 readl(phba->HCregaddr);
12132 /* Set the driver HA work bitmap */
12133 phba->work_ha |= HA_ERATT;
12134 /* Indicate polling handles this ERATT */
12135 phba->hba_flag |= HBA_ERATT_HANDLED;
12141 /* Set the driver HS work bitmap */
12142 phba->work_hs |= UNPLUG_ERR;
12143 /* Set the driver HA work bitmap */
12144 phba->work_ha |= HA_ERATT;
12145 /* Indicate polling handles this ERATT */
12146 phba->hba_flag |= HBA_ERATT_HANDLED;
12151 * lpfc_sli4_eratt_read - read sli-4 error attention events
12152 * @phba: Pointer to HBA context.
12154 * This function is called to read the SLI4 device error attention registers
12155 * for possible error attention events. The caller must hold the hostlock
12156 * with spin_lock_irq().
12158 * This function returns 1 when there is Error Attention in the Host Attention
12159 * Register and returns 0 otherwise.
12162 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
12164 uint32_t uerr_sta_hi, uerr_sta_lo;
12165 uint32_t if_type, portsmphr;
12166 struct lpfc_register portstat_reg;
12169 * For now, use the SLI4 device internal unrecoverable error
12170 * registers for error attention. This can be changed later.
12172 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12174 case LPFC_SLI_INTF_IF_TYPE_0:
12175 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
12177 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
12179 phba->work_hs |= UNPLUG_ERR;
12180 phba->work_ha |= HA_ERATT;
12181 phba->hba_flag |= HBA_ERATT_HANDLED;
12184 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
12185 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
12186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12187 "1423 HBA Unrecoverable error: "
12188 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
12189 "ue_mask_lo_reg=0x%x, "
12190 "ue_mask_hi_reg=0x%x\n",
12191 uerr_sta_lo, uerr_sta_hi,
12192 phba->sli4_hba.ue_mask_lo,
12193 phba->sli4_hba.ue_mask_hi);
12194 phba->work_status[0] = uerr_sta_lo;
12195 phba->work_status[1] = uerr_sta_hi;
12196 phba->work_ha |= HA_ERATT;
12197 phba->hba_flag |= HBA_ERATT_HANDLED;
12201 case LPFC_SLI_INTF_IF_TYPE_2:
12202 case LPFC_SLI_INTF_IF_TYPE_6:
12203 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
12204 &portstat_reg.word0) ||
12205 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
12207 phba->work_hs |= UNPLUG_ERR;
12208 phba->work_ha |= HA_ERATT;
12209 phba->hba_flag |= HBA_ERATT_HANDLED;
12212 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
12213 phba->work_status[0] =
12214 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
12215 phba->work_status[1] =
12216 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
12217 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12218 "2885 Port Status Event: "
12219 "port status reg 0x%x, "
12220 "port smphr reg 0x%x, "
12221 "error 1=0x%x, error 2=0x%x\n",
12222 portstat_reg.word0,
12224 phba->work_status[0],
12225 phba->work_status[1]);
12226 phba->work_ha |= HA_ERATT;
12227 phba->hba_flag |= HBA_ERATT_HANDLED;
12231 case LPFC_SLI_INTF_IF_TYPE_1:
12233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12234 "2886 HBA Error Attention on unsupported "
12235 "if type %d.", if_type);
12243 * lpfc_sli_check_eratt - check error attention events
12244 * @phba: Pointer to HBA context.
12246 * This function is called from timer soft interrupt context to check HBA's
12247 * error attention register bit for error attention events.
12249 * This function returns 1 when there is Error Attention in the Host Attention
12250 * Register and returns 0 otherwise.
12253 lpfc_sli_check_eratt(struct lpfc_hba *phba)
12257 /* If somebody is waiting to handle an eratt, don't process it
12258 * here. The brdkill function will do this.
12260 if (phba->link_flag & LS_IGNORE_ERATT)
12263 /* Check if interrupt handler handles this ERATT */
12264 spin_lock_irq(&phba->hbalock);
12265 if (phba->hba_flag & HBA_ERATT_HANDLED) {
12266 /* Interrupt handler has handled ERATT */
12267 spin_unlock_irq(&phba->hbalock);
12272 * If there is deferred error attention, do not check for error
12275 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12276 spin_unlock_irq(&phba->hbalock);
12280 /* If PCI channel is offline, don't process it */
12281 if (unlikely(pci_channel_offline(phba->pcidev))) {
12282 spin_unlock_irq(&phba->hbalock);
12286 switch (phba->sli_rev) {
12287 case LPFC_SLI_REV2:
12288 case LPFC_SLI_REV3:
12289 /* Read chip Host Attention (HA) register */
12290 ha_copy = lpfc_sli_eratt_read(phba);
12292 case LPFC_SLI_REV4:
12293 /* Read device Uncoverable Error (UERR) registers */
12294 ha_copy = lpfc_sli4_eratt_read(phba);
12297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12298 "0299 Invalid SLI revision (%d)\n",
12303 spin_unlock_irq(&phba->hbalock);
12309 * lpfc_intr_state_check - Check device state for interrupt handling
12310 * @phba: Pointer to HBA context.
12312 * This inline routine checks whether a device or its PCI slot is in a state
12313 * that the interrupt should be handled.
12315 * This function returns 0 if the device or the PCI slot is in a state that
12316 * interrupt should be handled, otherwise -EIO.
12319 lpfc_intr_state_check(struct lpfc_hba *phba)
12321 /* If the pci channel is offline, ignore all the interrupts */
12322 if (unlikely(pci_channel_offline(phba->pcidev)))
12325 /* Update device level interrupt statistics */
12326 phba->sli.slistat.sli_intr++;
12328 /* Ignore all interrupts during initialization. */
12329 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
12336 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
12337 * @irq: Interrupt number.
12338 * @dev_id: The device context pointer.
12340 * This function is directly called from the PCI layer as an interrupt
12341 * service routine when device with SLI-3 interface spec is enabled with
12342 * MSI-X multi-message interrupt mode and there are slow-path events in
12343 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
12344 * interrupt mode, this function is called as part of the device-level
12345 * interrupt handler. When the PCI slot is in error recovery or the HBA
12346 * is undergoing initialization, the interrupt handler will not process
12347 * the interrupt. The link attention and ELS ring attention events are
12348 * handled by the worker thread. The interrupt handler signals the worker
12349 * thread and returns for these events. This function is called without
12350 * any lock held. It gets the hbalock to access and update SLI data
12353 * This function returns IRQ_HANDLED when interrupt is handled else it
12354 * returns IRQ_NONE.
12357 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
12359 struct lpfc_hba *phba;
12360 uint32_t ha_copy, hc_copy;
12361 uint32_t work_ha_copy;
12362 unsigned long status;
12363 unsigned long iflag;
12366 MAILBOX_t *mbox, *pmbox;
12367 struct lpfc_vport *vport;
12368 struct lpfc_nodelist *ndlp;
12369 struct lpfc_dmabuf *mp;
12374 * Get the driver's phba structure from the dev_id and
12375 * assume the HBA is not interrupting.
12377 phba = (struct lpfc_hba *)dev_id;
12379 if (unlikely(!phba))
12383 * Stuff needs to be attented to when this function is invoked as an
12384 * individual interrupt handler in MSI-X multi-message interrupt mode
12386 if (phba->intr_type == MSIX) {
12387 /* Check device state for handling interrupt */
12388 if (lpfc_intr_state_check(phba))
12390 /* Need to read HA REG for slow-path events */
12391 spin_lock_irqsave(&phba->hbalock, iflag);
12392 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12394 /* If somebody is waiting to handle an eratt don't process it
12395 * here. The brdkill function will do this.
12397 if (phba->link_flag & LS_IGNORE_ERATT)
12398 ha_copy &= ~HA_ERATT;
12399 /* Check the need for handling ERATT in interrupt handler */
12400 if (ha_copy & HA_ERATT) {
12401 if (phba->hba_flag & HBA_ERATT_HANDLED)
12402 /* ERATT polling has handled ERATT */
12403 ha_copy &= ~HA_ERATT;
12405 /* Indicate interrupt handler handles ERATT */
12406 phba->hba_flag |= HBA_ERATT_HANDLED;
12410 * If there is deferred error attention, do not check for any
12413 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12414 spin_unlock_irqrestore(&phba->hbalock, iflag);
12418 /* Clear up only attention source related to slow-path */
12419 if (lpfc_readl(phba->HCregaddr, &hc_copy))
12422 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
12423 HC_LAINT_ENA | HC_ERINT_ENA),
12425 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
12427 writel(hc_copy, phba->HCregaddr);
12428 readl(phba->HAregaddr); /* flush */
12429 spin_unlock_irqrestore(&phba->hbalock, iflag);
12431 ha_copy = phba->ha_copy;
12433 work_ha_copy = ha_copy & phba->work_ha_mask;
12435 if (work_ha_copy) {
12436 if (work_ha_copy & HA_LATT) {
12437 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
12439 * Turn off Link Attention interrupts
12440 * until CLEAR_LA done
12442 spin_lock_irqsave(&phba->hbalock, iflag);
12443 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
12444 if (lpfc_readl(phba->HCregaddr, &control))
12446 control &= ~HC_LAINT_ENA;
12447 writel(control, phba->HCregaddr);
12448 readl(phba->HCregaddr); /* flush */
12449 spin_unlock_irqrestore(&phba->hbalock, iflag);
12452 work_ha_copy &= ~HA_LATT;
12455 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
12457 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
12458 * the only slow ring.
12460 status = (work_ha_copy &
12461 (HA_RXMASK << (4*LPFC_ELS_RING)));
12462 status >>= (4*LPFC_ELS_RING);
12463 if (status & HA_RXMASK) {
12464 spin_lock_irqsave(&phba->hbalock, iflag);
12465 if (lpfc_readl(phba->HCregaddr, &control))
12468 lpfc_debugfs_slow_ring_trc(phba,
12469 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
12471 (uint32_t)phba->sli.slistat.sli_intr);
12473 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
12474 lpfc_debugfs_slow_ring_trc(phba,
12475 "ISR Disable ring:"
12476 "pwork:x%x hawork:x%x wait:x%x",
12477 phba->work_ha, work_ha_copy,
12478 (uint32_t)((unsigned long)
12479 &phba->work_waitq));
12482 ~(HC_R0INT_ENA << LPFC_ELS_RING);
12483 writel(control, phba->HCregaddr);
12484 readl(phba->HCregaddr); /* flush */
12487 lpfc_debugfs_slow_ring_trc(phba,
12488 "ISR slow ring: pwork:"
12489 "x%x hawork:x%x wait:x%x",
12490 phba->work_ha, work_ha_copy,
12491 (uint32_t)((unsigned long)
12492 &phba->work_waitq));
12494 spin_unlock_irqrestore(&phba->hbalock, iflag);
12497 spin_lock_irqsave(&phba->hbalock, iflag);
12498 if (work_ha_copy & HA_ERATT) {
12499 if (lpfc_sli_read_hs(phba))
12502 * Check if there is a deferred error condition
12505 if ((HS_FFER1 & phba->work_hs) &&
12506 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12507 HS_FFER6 | HS_FFER7 | HS_FFER8) &
12509 phba->hba_flag |= DEFER_ERATT;
12510 /* Clear all interrupt enable conditions */
12511 writel(0, phba->HCregaddr);
12512 readl(phba->HCregaddr);
12516 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
12517 pmb = phba->sli.mbox_active;
12518 pmbox = &pmb->u.mb;
12520 vport = pmb->vport;
12522 /* First check out the status word */
12523 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
12524 if (pmbox->mbxOwner != OWN_HOST) {
12525 spin_unlock_irqrestore(&phba->hbalock, iflag);
12527 * Stray Mailbox Interrupt, mbxCommand <cmd>
12528 * mbxStatus <status>
12530 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12532 "(%d):0304 Stray Mailbox "
12533 "Interrupt mbxCommand x%x "
12535 (vport ? vport->vpi : 0),
12538 /* clear mailbox attention bit */
12539 work_ha_copy &= ~HA_MBATT;
12541 phba->sli.mbox_active = NULL;
12542 spin_unlock_irqrestore(&phba->hbalock, iflag);
12543 phba->last_completion_time = jiffies;
12544 del_timer(&phba->sli.mbox_tmo);
12545 if (pmb->mbox_cmpl) {
12546 lpfc_sli_pcimem_bcopy(mbox, pmbox,
12548 if (pmb->out_ext_byte_len &&
12550 lpfc_sli_pcimem_bcopy(
12553 pmb->out_ext_byte_len);
12555 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12556 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12558 lpfc_debugfs_disc_trc(vport,
12559 LPFC_DISC_TRC_MBOX_VPORT,
12560 "MBOX dflt rpi: : "
12561 "status:x%x rpi:x%x",
12562 (uint32_t)pmbox->mbxStatus,
12563 pmbox->un.varWords[0], 0);
12565 if (!pmbox->mbxStatus) {
12566 mp = (struct lpfc_dmabuf *)
12568 ndlp = (struct lpfc_nodelist *)
12571 /* Reg_LOGIN of dflt RPI was
12572 * successful. new lets get
12573 * rid of the RPI using the
12574 * same mbox buffer.
12576 lpfc_unreg_login(phba,
12578 pmbox->un.varWords[0],
12581 lpfc_mbx_cmpl_dflt_rpi;
12582 pmb->context1 = mp;
12583 pmb->context2 = ndlp;
12584 pmb->vport = vport;
12585 rc = lpfc_sli_issue_mbox(phba,
12588 if (rc != MBX_BUSY)
12589 lpfc_printf_log(phba,
12591 LOG_MBOX | LOG_SLI,
12592 "0350 rc should have"
12593 "been MBX_BUSY\n");
12594 if (rc != MBX_NOT_FINISHED)
12595 goto send_current_mbox;
12599 &phba->pport->work_port_lock,
12601 phba->pport->work_port_events &=
12603 spin_unlock_irqrestore(
12604 &phba->pport->work_port_lock,
12606 lpfc_mbox_cmpl_put(phba, pmb);
12609 spin_unlock_irqrestore(&phba->hbalock, iflag);
12611 if ((work_ha_copy & HA_MBATT) &&
12612 (phba->sli.mbox_active == NULL)) {
12614 /* Process next mailbox command if there is one */
12616 rc = lpfc_sli_issue_mbox(phba, NULL,
12618 } while (rc == MBX_NOT_FINISHED);
12619 if (rc != MBX_SUCCESS)
12620 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12621 LOG_SLI, "0349 rc should be "
12625 spin_lock_irqsave(&phba->hbalock, iflag);
12626 phba->work_ha |= work_ha_copy;
12627 spin_unlock_irqrestore(&phba->hbalock, iflag);
12628 lpfc_worker_wake_up(phba);
12630 return IRQ_HANDLED;
12632 spin_unlock_irqrestore(&phba->hbalock, iflag);
12633 return IRQ_HANDLED;
12635 } /* lpfc_sli_sp_intr_handler */
12638 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
12639 * @irq: Interrupt number.
12640 * @dev_id: The device context pointer.
12642 * This function is directly called from the PCI layer as an interrupt
12643 * service routine when device with SLI-3 interface spec is enabled with
12644 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12645 * ring event in the HBA. However, when the device is enabled with either
12646 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12647 * device-level interrupt handler. When the PCI slot is in error recovery
12648 * or the HBA is undergoing initialization, the interrupt handler will not
12649 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12650 * the intrrupt context. This function is called without any lock held.
12651 * It gets the hbalock to access and update SLI data structures.
12653 * This function returns IRQ_HANDLED when interrupt is handled else it
12654 * returns IRQ_NONE.
12657 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
12659 struct lpfc_hba *phba;
12661 unsigned long status;
12662 unsigned long iflag;
12663 struct lpfc_sli_ring *pring;
12665 /* Get the driver's phba structure from the dev_id and
12666 * assume the HBA is not interrupting.
12668 phba = (struct lpfc_hba *) dev_id;
12670 if (unlikely(!phba))
12674 * Stuff needs to be attented to when this function is invoked as an
12675 * individual interrupt handler in MSI-X multi-message interrupt mode
12677 if (phba->intr_type == MSIX) {
12678 /* Check device state for handling interrupt */
12679 if (lpfc_intr_state_check(phba))
12681 /* Need to read HA REG for FCP ring and other ring events */
12682 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12683 return IRQ_HANDLED;
12684 /* Clear up only attention source related to fast-path */
12685 spin_lock_irqsave(&phba->hbalock, iflag);
12687 * If there is deferred error attention, do not check for
12690 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12691 spin_unlock_irqrestore(&phba->hbalock, iflag);
12694 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12696 readl(phba->HAregaddr); /* flush */
12697 spin_unlock_irqrestore(&phba->hbalock, iflag);
12699 ha_copy = phba->ha_copy;
12702 * Process all events on FCP ring. Take the optimized path for FCP IO.
12704 ha_copy &= ~(phba->work_ha_mask);
12706 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12707 status >>= (4*LPFC_FCP_RING);
12708 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12709 if (status & HA_RXMASK)
12710 lpfc_sli_handle_fast_ring_event(phba, pring, status);
12712 if (phba->cfg_multi_ring_support == 2) {
12714 * Process all events on extra ring. Take the optimized path
12715 * for extra ring IO.
12717 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12718 status >>= (4*LPFC_EXTRA_RING);
12719 if (status & HA_RXMASK) {
12720 lpfc_sli_handle_fast_ring_event(phba,
12721 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
12725 return IRQ_HANDLED;
12726 } /* lpfc_sli_fp_intr_handler */
12729 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
12730 * @irq: Interrupt number.
12731 * @dev_id: The device context pointer.
12733 * This function is the HBA device-level interrupt handler to device with
12734 * SLI-3 interface spec, called from the PCI layer when either MSI or
12735 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12736 * requires driver attention. This function invokes the slow-path interrupt
12737 * attention handling function and fast-path interrupt attention handling
12738 * function in turn to process the relevant HBA attention events. This
12739 * function is called without any lock held. It gets the hbalock to access
12740 * and update SLI data structures.
12742 * This function returns IRQ_HANDLED when interrupt is handled, else it
12743 * returns IRQ_NONE.
12746 lpfc_sli_intr_handler(int irq, void *dev_id)
12748 struct lpfc_hba *phba;
12749 irqreturn_t sp_irq_rc, fp_irq_rc;
12750 unsigned long status1, status2;
12754 * Get the driver's phba structure from the dev_id and
12755 * assume the HBA is not interrupting.
12757 phba = (struct lpfc_hba *) dev_id;
12759 if (unlikely(!phba))
12762 /* Check device state for handling interrupt */
12763 if (lpfc_intr_state_check(phba))
12766 spin_lock(&phba->hbalock);
12767 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12768 spin_unlock(&phba->hbalock);
12769 return IRQ_HANDLED;
12772 if (unlikely(!phba->ha_copy)) {
12773 spin_unlock(&phba->hbalock);
12775 } else if (phba->ha_copy & HA_ERATT) {
12776 if (phba->hba_flag & HBA_ERATT_HANDLED)
12777 /* ERATT polling has handled ERATT */
12778 phba->ha_copy &= ~HA_ERATT;
12780 /* Indicate interrupt handler handles ERATT */
12781 phba->hba_flag |= HBA_ERATT_HANDLED;
12785 * If there is deferred error attention, do not check for any interrupt.
12787 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12788 spin_unlock(&phba->hbalock);
12792 /* Clear attention sources except link and error attentions */
12793 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12794 spin_unlock(&phba->hbalock);
12795 return IRQ_HANDLED;
12797 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12798 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12800 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
12801 writel(hc_copy, phba->HCregaddr);
12802 readl(phba->HAregaddr); /* flush */
12803 spin_unlock(&phba->hbalock);
12806 * Invokes slow-path host attention interrupt handling as appropriate.
12809 /* status of events with mailbox and link attention */
12810 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12812 /* status of events with ELS ring */
12813 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12814 status2 >>= (4*LPFC_ELS_RING);
12816 if (status1 || (status2 & HA_RXMASK))
12817 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
12819 sp_irq_rc = IRQ_NONE;
12822 * Invoke fast-path host attention interrupt handling as appropriate.
12825 /* status of events with FCP ring */
12826 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12827 status1 >>= (4*LPFC_FCP_RING);
12829 /* status of events with extra ring */
12830 if (phba->cfg_multi_ring_support == 2) {
12831 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12832 status2 >>= (4*LPFC_EXTRA_RING);
12836 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
12837 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
12839 fp_irq_rc = IRQ_NONE;
12841 /* Return device-level interrupt handling status */
12842 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
12843 } /* lpfc_sli_intr_handler */
12846 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
12847 * @phba: pointer to lpfc hba data structure.
12849 * This routine is invoked by the worker thread to process all the pending
12850 * SLI4 FCP abort XRI events.
12852 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
12854 struct lpfc_cq_event *cq_event;
12856 /* First, declare the fcp xri abort event has been handled */
12857 spin_lock_irq(&phba->hbalock);
12858 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
12859 spin_unlock_irq(&phba->hbalock);
12860 /* Now, handle all the fcp xri abort events */
12861 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
12862 /* Get the first event from the head of the event queue */
12863 spin_lock_irq(&phba->hbalock);
12864 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
12865 cq_event, struct lpfc_cq_event, list);
12866 spin_unlock_irq(&phba->hbalock);
12867 /* Notify aborted XRI for FCP work queue */
12868 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12869 /* Free the event processed back to the free pool */
12870 lpfc_sli4_cq_event_release(phba, cq_event);
12875 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12876 * @phba: pointer to lpfc hba data structure.
12878 * This routine is invoked by the worker thread to process all the pending
12879 * SLI4 els abort xri events.
12881 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12883 struct lpfc_cq_event *cq_event;
12885 /* First, declare the els xri abort event has been handled */
12886 spin_lock_irq(&phba->hbalock);
12887 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12888 spin_unlock_irq(&phba->hbalock);
12889 /* Now, handle all the els xri abort events */
12890 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12891 /* Get the first event from the head of the event queue */
12892 spin_lock_irq(&phba->hbalock);
12893 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12894 cq_event, struct lpfc_cq_event, list);
12895 spin_unlock_irq(&phba->hbalock);
12896 /* Notify aborted XRI for ELS work queue */
12897 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12898 /* Free the event processed back to the free pool */
12899 lpfc_sli4_cq_event_release(phba, cq_event);
12904 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12905 * @phba: pointer to lpfc hba data structure
12906 * @pIocbIn: pointer to the rspiocbq
12907 * @pIocbOut: pointer to the cmdiocbq
12908 * @wcqe: pointer to the complete wcqe
12910 * This routine transfers the fields of a command iocbq to a response iocbq
12911 * by copying all the IOCB fields from command iocbq and transferring the
12912 * completion status information from the complete wcqe.
12915 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12916 struct lpfc_iocbq *pIocbIn,
12917 struct lpfc_iocbq *pIocbOut,
12918 struct lpfc_wcqe_complete *wcqe)
12921 unsigned long iflags;
12922 uint32_t status, max_response;
12923 struct lpfc_dmabuf *dmabuf;
12924 struct ulp_bde64 *bpl, bde;
12925 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12927 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12928 sizeof(struct lpfc_iocbq) - offset);
12929 /* Map WCQE parameters into irspiocb parameters */
12930 status = bf_get(lpfc_wcqe_c_status, wcqe);
12931 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
12932 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12933 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12934 pIocbIn->iocb.un.fcpi.fcpi_parm =
12935 pIocbOut->iocb.un.fcpi.fcpi_parm -
12936 wcqe->total_data_placed;
12938 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12940 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12941 switch (pIocbOut->iocb.ulpCommand) {
12942 case CMD_ELS_REQUEST64_CR:
12943 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12944 bpl = (struct ulp_bde64 *)dmabuf->virt;
12945 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12946 max_response = bde.tus.f.bdeSize;
12948 case CMD_GEN_REQUEST64_CR:
12950 if (!pIocbOut->context3)
12952 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12953 sizeof(struct ulp_bde64);
12954 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12955 bpl = (struct ulp_bde64 *)dmabuf->virt;
12956 for (i = 0; i < numBdes; i++) {
12957 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12958 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12959 max_response += bde.tus.f.bdeSize;
12963 max_response = wcqe->total_data_placed;
12966 if (max_response < wcqe->total_data_placed)
12967 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12969 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12970 wcqe->total_data_placed;
12973 /* Convert BG errors for completion status */
12974 if (status == CQE_STATUS_DI_ERROR) {
12975 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
12977 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
12978 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
12980 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
12982 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
12983 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
12984 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12985 BGS_GUARD_ERR_MASK;
12986 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
12987 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12988 BGS_APPTAG_ERR_MASK;
12989 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
12990 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12991 BGS_REFTAG_ERR_MASK;
12993 /* Check to see if there was any good data before the error */
12994 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
12995 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12996 BGS_HI_WATER_MARK_PRESENT_MASK;
12997 pIocbIn->iocb.unsli3.sli3_bg.bghm =
12998 wcqe->total_data_placed;
13002 * Set ALL the error bits to indicate we don't know what
13003 * type of error it is.
13005 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
13006 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13007 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
13008 BGS_GUARD_ERR_MASK);
13011 /* Pick up HBA exchange busy condition */
13012 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
13013 spin_lock_irqsave(&phba->hbalock, iflags);
13014 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
13015 spin_unlock_irqrestore(&phba->hbalock, iflags);
13020 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
13021 * @phba: Pointer to HBA context object.
13022 * @wcqe: Pointer to work-queue completion queue entry.
13024 * This routine handles an ELS work-queue completion event and construct
13025 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
13026 * discovery engine to handle.
13028 * Return: Pointer to the receive IOCBQ, NULL otherwise.
13030 static struct lpfc_iocbq *
13031 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
13032 struct lpfc_iocbq *irspiocbq)
13034 struct lpfc_sli_ring *pring;
13035 struct lpfc_iocbq *cmdiocbq;
13036 struct lpfc_wcqe_complete *wcqe;
13037 unsigned long iflags;
13039 pring = lpfc_phba_elsring(phba);
13040 if (unlikely(!pring))
13043 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
13044 spin_lock_irqsave(&pring->ring_lock, iflags);
13045 pring->stats.iocb_event++;
13046 /* Look up the ELS command IOCB and create pseudo response IOCB */
13047 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13048 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13049 if (unlikely(!cmdiocbq)) {
13050 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13051 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13052 "0386 ELS complete with no corresponding "
13053 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
13054 wcqe->word0, wcqe->total_data_placed,
13055 wcqe->parameter, wcqe->word3);
13056 lpfc_sli_release_iocbq(phba, irspiocbq);
13060 /* Put the iocb back on the txcmplq */
13061 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
13062 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13064 /* Fake the irspiocbq and copy necessary response information */
13065 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
13070 inline struct lpfc_cq_event *
13071 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
13073 struct lpfc_cq_event *cq_event;
13075 /* Allocate a new internal CQ_EVENT entry */
13076 cq_event = lpfc_sli4_cq_event_alloc(phba);
13078 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13079 "0602 Failed to alloc CQ_EVENT entry\n");
13083 /* Move the CQE into the event */
13084 memcpy(&cq_event->cqe, entry, size);
13089 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
13090 * @phba: Pointer to HBA context object.
13091 * @cqe: Pointer to mailbox completion queue entry.
13093 * This routine process a mailbox completion queue entry with asynchrous
13096 * Return: true if work posted to worker thread, otherwise false.
13099 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13101 struct lpfc_cq_event *cq_event;
13102 unsigned long iflags;
13104 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13105 "0392 Async Event: word0:x%x, word1:x%x, "
13106 "word2:x%x, word3:x%x\n", mcqe->word0,
13107 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
13109 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
13112 spin_lock_irqsave(&phba->hbalock, iflags);
13113 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
13114 /* Set the async event flag */
13115 phba->hba_flag |= ASYNC_EVENT;
13116 spin_unlock_irqrestore(&phba->hbalock, iflags);
13122 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
13123 * @phba: Pointer to HBA context object.
13124 * @cqe: Pointer to mailbox completion queue entry.
13126 * This routine process a mailbox completion queue entry with mailbox
13127 * completion event.
13129 * Return: true if work posted to worker thread, otherwise false.
13132 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13134 uint32_t mcqe_status;
13135 MAILBOX_t *mbox, *pmbox;
13136 struct lpfc_mqe *mqe;
13137 struct lpfc_vport *vport;
13138 struct lpfc_nodelist *ndlp;
13139 struct lpfc_dmabuf *mp;
13140 unsigned long iflags;
13142 bool workposted = false;
13145 /* If not a mailbox complete MCQE, out by checking mailbox consume */
13146 if (!bf_get(lpfc_trailer_completed, mcqe))
13147 goto out_no_mqe_complete;
13149 /* Get the reference to the active mbox command */
13150 spin_lock_irqsave(&phba->hbalock, iflags);
13151 pmb = phba->sli.mbox_active;
13152 if (unlikely(!pmb)) {
13153 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13154 "1832 No pending MBOX command to handle\n");
13155 spin_unlock_irqrestore(&phba->hbalock, iflags);
13156 goto out_no_mqe_complete;
13158 spin_unlock_irqrestore(&phba->hbalock, iflags);
13160 pmbox = (MAILBOX_t *)&pmb->u.mqe;
13162 vport = pmb->vport;
13164 /* Reset heartbeat timer */
13165 phba->last_completion_time = jiffies;
13166 del_timer(&phba->sli.mbox_tmo);
13168 /* Move mbox data to caller's mailbox region, do endian swapping */
13169 if (pmb->mbox_cmpl && mbox)
13170 lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
13173 * For mcqe errors, conditionally move a modified error code to
13174 * the mbox so that the error will not be missed.
13176 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
13177 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
13178 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
13179 bf_set(lpfc_mqe_status, mqe,
13180 (LPFC_MBX_ERROR_RANGE | mcqe_status));
13182 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
13183 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
13184 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
13185 "MBOX dflt rpi: status:x%x rpi:x%x",
13187 pmbox->un.varWords[0], 0);
13188 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
13189 mp = (struct lpfc_dmabuf *)(pmb->context1);
13190 ndlp = (struct lpfc_nodelist *)pmb->context2;
13191 /* Reg_LOGIN of dflt RPI was successful. Now lets get
13192 * RID of the PPI using the same mbox buffer.
13194 lpfc_unreg_login(phba, vport->vpi,
13195 pmbox->un.varWords[0], pmb);
13196 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
13197 pmb->context1 = mp;
13198 pmb->context2 = ndlp;
13199 pmb->vport = vport;
13200 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
13201 if (rc != MBX_BUSY)
13202 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
13203 LOG_SLI, "0385 rc should "
13204 "have been MBX_BUSY\n");
13205 if (rc != MBX_NOT_FINISHED)
13206 goto send_current_mbox;
13209 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
13210 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
13211 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
13213 /* There is mailbox completion work to do */
13214 spin_lock_irqsave(&phba->hbalock, iflags);
13215 __lpfc_mbox_cmpl_put(phba, pmb);
13216 phba->work_ha |= HA_MBATT;
13217 spin_unlock_irqrestore(&phba->hbalock, iflags);
13221 spin_lock_irqsave(&phba->hbalock, iflags);
13222 /* Release the mailbox command posting token */
13223 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13224 /* Setting active mailbox pointer need to be in sync to flag clear */
13225 phba->sli.mbox_active = NULL;
13226 spin_unlock_irqrestore(&phba->hbalock, iflags);
13227 /* Wake up worker thread to post the next pending mailbox command */
13228 lpfc_worker_wake_up(phba);
13229 out_no_mqe_complete:
13230 if (bf_get(lpfc_trailer_consumed, mcqe))
13231 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13236 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
13237 * @phba: Pointer to HBA context object.
13238 * @cqe: Pointer to mailbox completion queue entry.
13240 * This routine process a mailbox completion queue entry, it invokes the
13241 * proper mailbox complete handling or asynchrous event handling routine
13242 * according to the MCQE's async bit.
13244 * Return: true if work posted to worker thread, otherwise false.
13247 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
13249 struct lpfc_mcqe mcqe;
13252 /* Copy the mailbox MCQE and convert endian order as needed */
13253 lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
13255 /* Invoke the proper event handling routine */
13256 if (!bf_get(lpfc_trailer_async, &mcqe))
13257 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
13259 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
13264 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
13265 * @phba: Pointer to HBA context object.
13266 * @cq: Pointer to associated CQ
13267 * @wcqe: Pointer to work-queue completion queue entry.
13269 * This routine handles an ELS work-queue completion event.
13271 * Return: true if work posted to worker thread, otherwise false.
13274 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13275 struct lpfc_wcqe_complete *wcqe)
13277 struct lpfc_iocbq *irspiocbq;
13278 unsigned long iflags;
13279 struct lpfc_sli_ring *pring = cq->pring;
13281 int txcmplq_cnt = 0;
13282 int fcp_txcmplq_cnt = 0;
13284 /* Check for response status */
13285 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13286 /* Log the error status */
13287 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13288 "0357 ELS CQE error: status=x%x: "
13289 "CQE: %08x %08x %08x %08x\n",
13290 bf_get(lpfc_wcqe_c_status, wcqe),
13291 wcqe->word0, wcqe->total_data_placed,
13292 wcqe->parameter, wcqe->word3);
13295 /* Get an irspiocbq for later ELS response processing use */
13296 irspiocbq = lpfc_sli_get_iocbq(phba);
13298 if (!list_empty(&pring->txq))
13300 if (!list_empty(&pring->txcmplq))
13302 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13303 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
13304 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
13305 txq_cnt, phba->iocb_cnt,
13311 /* Save off the slow-path queue event for work thread to process */
13312 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
13313 spin_lock_irqsave(&phba->hbalock, iflags);
13314 list_add_tail(&irspiocbq->cq_event.list,
13315 &phba->sli4_hba.sp_queue_event);
13316 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13317 spin_unlock_irqrestore(&phba->hbalock, iflags);
13323 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
13324 * @phba: Pointer to HBA context object.
13325 * @wcqe: Pointer to work-queue completion queue entry.
13327 * This routine handles slow-path WQ entry consumed event by invoking the
13328 * proper WQ release routine to the slow-path WQ.
13331 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
13332 struct lpfc_wcqe_release *wcqe)
13334 /* sanity check on queue memory */
13335 if (unlikely(!phba->sli4_hba.els_wq))
13337 /* Check for the slow-path ELS work queue */
13338 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
13339 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
13340 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13342 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13343 "2579 Slow-path wqe consume event carries "
13344 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
13345 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
13346 phba->sli4_hba.els_wq->queue_id);
13350 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
13351 * @phba: Pointer to HBA context object.
13352 * @cq: Pointer to a WQ completion queue.
13353 * @wcqe: Pointer to work-queue completion queue entry.
13355 * This routine handles an XRI abort event.
13357 * Return: true if work posted to worker thread, otherwise false.
13360 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
13361 struct lpfc_queue *cq,
13362 struct sli4_wcqe_xri_aborted *wcqe)
13364 bool workposted = false;
13365 struct lpfc_cq_event *cq_event;
13366 unsigned long iflags;
13368 switch (cq->subtype) {
13370 cq_event = lpfc_cq_event_setup(
13371 phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
13374 spin_lock_irqsave(&phba->hbalock, iflags);
13375 list_add_tail(&cq_event->list,
13376 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
13377 /* Set the fcp xri abort event flag */
13378 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
13379 spin_unlock_irqrestore(&phba->hbalock, iflags);
13382 case LPFC_NVME_LS: /* NVME LS uses ELS resources */
13384 cq_event = lpfc_cq_event_setup(
13385 phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
13388 spin_lock_irqsave(&phba->hbalock, iflags);
13389 list_add_tail(&cq_event->list,
13390 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
13391 /* Set the els xri abort event flag */
13392 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
13393 spin_unlock_irqrestore(&phba->hbalock, iflags);
13397 /* Notify aborted XRI for NVME work queue */
13398 if (phba->nvmet_support)
13399 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
13401 lpfc_sli4_nvme_xri_aborted(phba, wcqe);
13403 workposted = false;
13406 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13407 "0603 Invalid CQ subtype %d: "
13408 "%08x %08x %08x %08x\n",
13409 cq->subtype, wcqe->word0, wcqe->parameter,
13410 wcqe->word2, wcqe->word3);
13411 workposted = false;
13418 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
13419 * @phba: Pointer to HBA context object.
13420 * @rcqe: Pointer to receive-queue completion queue entry.
13422 * This routine process a receive-queue completion queue entry.
13424 * Return: true if work posted to worker thread, otherwise false.
13427 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
13429 bool workposted = false;
13430 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
13431 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
13432 struct lpfc_nvmet_tgtport *tgtp;
13433 struct hbq_dmabuf *dma_buf;
13434 uint32_t status, rq_id;
13435 unsigned long iflags;
13437 /* sanity check on queue memory */
13438 if (unlikely(!hrq) || unlikely(!drq))
13441 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13442 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13444 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13445 if (rq_id != hrq->queue_id)
13448 status = bf_get(lpfc_rcqe_status, rcqe);
13450 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13451 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13452 "2537 Receive Frame Truncated!!\n");
13453 case FC_STATUS_RQ_SUCCESS:
13454 spin_lock_irqsave(&phba->hbalock, iflags);
13455 lpfc_sli4_rq_release(hrq, drq);
13456 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
13458 hrq->RQ_no_buf_found++;
13459 spin_unlock_irqrestore(&phba->hbalock, iflags);
13463 hrq->RQ_buf_posted--;
13464 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
13466 /* save off the frame for the word thread to process */
13467 list_add_tail(&dma_buf->cq_event.list,
13468 &phba->sli4_hba.sp_queue_event);
13469 /* Frame received */
13470 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13471 spin_unlock_irqrestore(&phba->hbalock, iflags);
13474 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13475 if (phba->nvmet_support) {
13476 tgtp = phba->targetport->private;
13477 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13478 "6402 RQE Error x%x, posted %d err_cnt "
13480 status, hrq->RQ_buf_posted,
13481 hrq->RQ_no_posted_buf,
13482 atomic_read(&tgtp->rcv_fcp_cmd_in),
13483 atomic_read(&tgtp->rcv_fcp_cmd_out),
13484 atomic_read(&tgtp->xmt_fcp_release));
13488 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13489 hrq->RQ_no_posted_buf++;
13490 /* Post more buffers if possible */
13491 spin_lock_irqsave(&phba->hbalock, iflags);
13492 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
13493 spin_unlock_irqrestore(&phba->hbalock, iflags);
13502 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
13503 * @phba: Pointer to HBA context object.
13504 * @cq: Pointer to the completion queue.
13505 * @wcqe: Pointer to a completion queue entry.
13507 * This routine process a slow-path work-queue or receive queue completion queue
13510 * Return: true if work posted to worker thread, otherwise false.
13513 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13514 struct lpfc_cqe *cqe)
13516 struct lpfc_cqe cqevt;
13517 bool workposted = false;
13519 /* Copy the work queue CQE and convert endian order if needed */
13520 lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
13522 /* Check and process for different type of WCQE and dispatch */
13523 switch (bf_get(lpfc_cqe_code, &cqevt)) {
13524 case CQE_CODE_COMPL_WQE:
13525 /* Process the WQ/RQ complete event */
13526 phba->last_completion_time = jiffies;
13527 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
13528 (struct lpfc_wcqe_complete *)&cqevt);
13530 case CQE_CODE_RELEASE_WQE:
13531 /* Process the WQ release event */
13532 lpfc_sli4_sp_handle_rel_wcqe(phba,
13533 (struct lpfc_wcqe_release *)&cqevt);
13535 case CQE_CODE_XRI_ABORTED:
13536 /* Process the WQ XRI abort event */
13537 phba->last_completion_time = jiffies;
13538 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13539 (struct sli4_wcqe_xri_aborted *)&cqevt);
13541 case CQE_CODE_RECEIVE:
13542 case CQE_CODE_RECEIVE_V1:
13543 /* Process the RQ event */
13544 phba->last_completion_time = jiffies;
13545 workposted = lpfc_sli4_sp_handle_rcqe(phba,
13546 (struct lpfc_rcqe *)&cqevt);
13549 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13550 "0388 Not a valid WCQE code: x%x\n",
13551 bf_get(lpfc_cqe_code, &cqevt));
13558 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
13559 * @phba: Pointer to HBA context object.
13560 * @eqe: Pointer to fast-path event queue entry.
13562 * This routine process a event queue entry from the slow-path event queue.
13563 * It will check the MajorCode and MinorCode to determine this is for a
13564 * completion event on a completion queue, if not, an error shall be logged
13565 * and just return. Otherwise, it will get to the corresponding completion
13566 * queue and process all the entries on that completion queue, rearm the
13567 * completion queue, and then return.
13571 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13572 struct lpfc_queue *speq)
13574 struct lpfc_queue *cq = NULL, *childq;
13577 /* Get the reference to the corresponding CQ */
13578 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13580 list_for_each_entry(childq, &speq->child_list, list) {
13581 if (childq->queue_id == cqid) {
13586 if (unlikely(!cq)) {
13587 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13588 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13589 "0365 Slow-path CQ identifier "
13590 "(%d) does not exist\n", cqid);
13594 /* Save EQ associated with this CQ */
13595 cq->assoc_qp = speq;
13597 if (!queue_work(phba->wq, &cq->spwork))
13598 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13599 "0390 Cannot schedule soft IRQ "
13600 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
13601 cqid, cq->queue_id, smp_processor_id());
13605 * lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
13606 * @phba: Pointer to HBA context object.
13608 * This routine process a event queue entry from the slow-path event queue.
13609 * It will check the MajorCode and MinorCode to determine this is for a
13610 * completion event on a completion queue, if not, an error shall be logged
13611 * and just return. Otherwise, it will get to the corresponding completion
13612 * queue and process all the entries on that completion queue, rearm the
13613 * completion queue, and then return.
13617 lpfc_sli4_sp_process_cq(struct work_struct *work)
13619 struct lpfc_queue *cq =
13620 container_of(work, struct lpfc_queue, spwork);
13621 struct lpfc_hba *phba = cq->phba;
13622 struct lpfc_cqe *cqe;
13623 bool workposted = false;
13626 /* Process all the entries to the CQ */
13627 switch (cq->type) {
13629 while ((cqe = lpfc_sli4_cq_get(cq))) {
13630 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
13631 if (!(++ccount % cq->entry_repost))
13637 while ((cqe = lpfc_sli4_cq_get(cq))) {
13638 if (cq->subtype == LPFC_FCP ||
13639 cq->subtype == LPFC_NVME) {
13640 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13641 if (phba->ktime_on)
13642 cq->isr_timestamp = ktime_get_ns();
13644 cq->isr_timestamp = 0;
13646 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq,
13649 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
13652 if (!(++ccount % cq->entry_repost))
13656 /* Track the max number of CQEs processed in 1 EQ */
13657 if (ccount > cq->CQ_max_cqe)
13658 cq->CQ_max_cqe = ccount;
13661 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13662 "0370 Invalid completion queue type (%d)\n",
13667 /* Catch the no cq entry condition, log an error */
13668 if (unlikely(ccount == 0))
13669 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13670 "0371 No entry from the CQ: identifier "
13671 "(x%x), type (%d)\n", cq->queue_id, cq->type);
13673 /* In any case, flash and re-arm the RCQ */
13674 phba->sli4_hba.sli4_cq_release(cq, LPFC_QUEUE_REARM);
13676 /* wake up worker thread if there are works to be done */
13678 lpfc_worker_wake_up(phba);
13682 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
13683 * @phba: Pointer to HBA context object.
13684 * @cq: Pointer to associated CQ
13685 * @wcqe: Pointer to work-queue completion queue entry.
13687 * This routine process a fast-path work queue completion entry from fast-path
13688 * event queue for FCP command response completion.
13691 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13692 struct lpfc_wcqe_complete *wcqe)
13694 struct lpfc_sli_ring *pring = cq->pring;
13695 struct lpfc_iocbq *cmdiocbq;
13696 struct lpfc_iocbq irspiocbq;
13697 unsigned long iflags;
13699 /* Check for response status */
13700 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13701 /* If resource errors reported from HBA, reduce queue
13702 * depth of the SCSI device.
13704 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13705 IOSTAT_LOCAL_REJECT)) &&
13706 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13707 IOERR_NO_RESOURCES))
13708 phba->lpfc_rampdown_queue_depth(phba);
13710 /* Log the error status */
13711 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13712 "0373 FCP CQE error: status=x%x: "
13713 "CQE: %08x %08x %08x %08x\n",
13714 bf_get(lpfc_wcqe_c_status, wcqe),
13715 wcqe->word0, wcqe->total_data_placed,
13716 wcqe->parameter, wcqe->word3);
13719 /* Look up the FCP command IOCB and create pseudo response IOCB */
13720 spin_lock_irqsave(&pring->ring_lock, iflags);
13721 pring->stats.iocb_event++;
13722 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13723 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13724 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13725 if (unlikely(!cmdiocbq)) {
13726 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13727 "0374 FCP complete with no corresponding "
13728 "cmdiocb: iotag (%d)\n",
13729 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13732 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13733 cmdiocbq->isr_timestamp = cq->isr_timestamp;
13735 if (cmdiocbq->iocb_cmpl == NULL) {
13736 if (cmdiocbq->wqe_cmpl) {
13737 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13738 spin_lock_irqsave(&phba->hbalock, iflags);
13739 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13740 spin_unlock_irqrestore(&phba->hbalock, iflags);
13743 /* Pass the cmd_iocb and the wcqe to the upper layer */
13744 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13747 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13748 "0375 FCP cmdiocb not callback function "
13750 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13754 /* Fake the irspiocb and copy necessary response information */
13755 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
13757 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13758 spin_lock_irqsave(&phba->hbalock, iflags);
13759 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13760 spin_unlock_irqrestore(&phba->hbalock, iflags);
13763 /* Pass the cmd_iocb and the rsp state to the upper layer */
13764 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13768 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13769 * @phba: Pointer to HBA context object.
13770 * @cq: Pointer to completion queue.
13771 * @wcqe: Pointer to work-queue completion queue entry.
13773 * This routine handles an fast-path WQ entry consumed event by invoking the
13774 * proper WQ release routine to the slow-path WQ.
13777 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13778 struct lpfc_wcqe_release *wcqe)
13780 struct lpfc_queue *childwq;
13781 bool wqid_matched = false;
13784 /* Check for fast-path FCP work queue release */
13785 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
13786 list_for_each_entry(childwq, &cq->child_list, list) {
13787 if (childwq->queue_id == hba_wqid) {
13788 lpfc_sli4_wq_release(childwq,
13789 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13790 if (childwq->q_flag & HBA_NVMET_WQFULL)
13791 lpfc_nvmet_wqfull_process(phba, childwq);
13792 wqid_matched = true;
13796 /* Report warning log message if no match found */
13797 if (wqid_matched != true)
13798 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13799 "2580 Fast-path wqe consume event carries "
13800 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
13804 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13805 * @phba: Pointer to HBA context object.
13806 * @rcqe: Pointer to receive-queue completion queue entry.
13808 * This routine process a receive-queue completion queue entry.
13810 * Return: true if work posted to worker thread, otherwise false.
13813 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13814 struct lpfc_rcqe *rcqe)
13816 bool workposted = false;
13817 struct lpfc_queue *hrq;
13818 struct lpfc_queue *drq;
13819 struct rqb_dmabuf *dma_buf;
13820 struct fc_frame_header *fc_hdr;
13821 struct lpfc_nvmet_tgtport *tgtp;
13822 uint32_t status, rq_id;
13823 unsigned long iflags;
13824 uint32_t fctl, idx;
13826 if ((phba->nvmet_support == 0) ||
13827 (phba->sli4_hba.nvmet_cqset == NULL))
13830 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13831 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13832 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13834 /* sanity check on queue memory */
13835 if (unlikely(!hrq) || unlikely(!drq))
13838 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13839 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13841 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13843 if ((phba->nvmet_support == 0) ||
13844 (rq_id != hrq->queue_id))
13847 status = bf_get(lpfc_rcqe_status, rcqe);
13849 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13850 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13851 "6126 Receive Frame Truncated!!\n");
13853 case FC_STATUS_RQ_SUCCESS:
13854 spin_lock_irqsave(&phba->hbalock, iflags);
13855 lpfc_sli4_rq_release(hrq, drq);
13856 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13858 hrq->RQ_no_buf_found++;
13859 spin_unlock_irqrestore(&phba->hbalock, iflags);
13862 spin_unlock_irqrestore(&phba->hbalock, iflags);
13864 hrq->RQ_buf_posted--;
13865 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13867 /* Just some basic sanity checks on FCP Command frame */
13868 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
13869 fc_hdr->fh_f_ctl[1] << 8 |
13870 fc_hdr->fh_f_ctl[2]);
13872 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
13873 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
13874 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
13877 if (fc_hdr->fh_type == FC_TYPE_FCP) {
13878 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
13879 lpfc_nvmet_unsol_fcp_event(
13880 phba, idx, dma_buf,
13881 cq->isr_timestamp);
13885 lpfc_in_buf_free(phba, &dma_buf->dbuf);
13887 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13888 if (phba->nvmet_support) {
13889 tgtp = phba->targetport->private;
13890 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13891 "6401 RQE Error x%x, posted %d err_cnt "
13893 status, hrq->RQ_buf_posted,
13894 hrq->RQ_no_posted_buf,
13895 atomic_read(&tgtp->rcv_fcp_cmd_in),
13896 atomic_read(&tgtp->rcv_fcp_cmd_out),
13897 atomic_read(&tgtp->xmt_fcp_release));
13901 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13902 hrq->RQ_no_posted_buf++;
13903 /* Post more buffers if possible */
13911 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
13912 * @cq: Pointer to the completion queue.
13913 * @eqe: Pointer to fast-path completion queue entry.
13915 * This routine process a fast-path work queue completion entry from fast-path
13916 * event queue for FCP command response completion.
13919 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13920 struct lpfc_cqe *cqe)
13922 struct lpfc_wcqe_release wcqe;
13923 bool workposted = false;
13925 /* Copy the work queue CQE and convert endian order if needed */
13926 lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
13928 /* Check and process for different type of WCQE and dispatch */
13929 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
13930 case CQE_CODE_COMPL_WQE:
13931 case CQE_CODE_NVME_ERSP:
13933 /* Process the WQ complete event */
13934 phba->last_completion_time = jiffies;
13935 if ((cq->subtype == LPFC_FCP) || (cq->subtype == LPFC_NVME))
13936 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13937 (struct lpfc_wcqe_complete *)&wcqe);
13938 if (cq->subtype == LPFC_NVME_LS)
13939 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13940 (struct lpfc_wcqe_complete *)&wcqe);
13942 case CQE_CODE_RELEASE_WQE:
13943 cq->CQ_release_wqe++;
13944 /* Process the WQ release event */
13945 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
13946 (struct lpfc_wcqe_release *)&wcqe);
13948 case CQE_CODE_XRI_ABORTED:
13949 cq->CQ_xri_aborted++;
13950 /* Process the WQ XRI abort event */
13951 phba->last_completion_time = jiffies;
13952 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13953 (struct sli4_wcqe_xri_aborted *)&wcqe);
13955 case CQE_CODE_RECEIVE_V1:
13956 case CQE_CODE_RECEIVE:
13957 phba->last_completion_time = jiffies;
13958 if (cq->subtype == LPFC_NVMET) {
13959 workposted = lpfc_sli4_nvmet_handle_rcqe(
13960 phba, cq, (struct lpfc_rcqe *)&wcqe);
13964 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13965 "0144 Not a valid CQE code: x%x\n",
13966 bf_get(lpfc_wcqe_c_code, &wcqe));
13973 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
13974 * @phba: Pointer to HBA context object.
13975 * @eqe: Pointer to fast-path event queue entry.
13977 * This routine process a event queue entry from the fast-path event queue.
13978 * It will check the MajorCode and MinorCode to determine this is for a
13979 * completion event on a completion queue, if not, an error shall be logged
13980 * and just return. Otherwise, it will get to the corresponding completion
13981 * queue and process all the entries on the completion queue, rearm the
13982 * completion queue, and then return.
13985 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13988 struct lpfc_queue *cq = NULL;
13991 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
13992 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13993 "0366 Not a valid completion "
13994 "event: majorcode=x%x, minorcode=x%x\n",
13995 bf_get_le32(lpfc_eqe_major_code, eqe),
13996 bf_get_le32(lpfc_eqe_minor_code, eqe));
14000 /* Get the reference to the corresponding CQ */
14001 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14003 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
14004 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
14005 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
14006 /* Process NVMET unsol rcv */
14007 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
14012 if (phba->sli4_hba.nvme_cq_map &&
14013 (cqid == phba->sli4_hba.nvme_cq_map[qidx])) {
14014 /* Process NVME / NVMET command completion */
14015 cq = phba->sli4_hba.nvme_cq[qidx];
14019 if (phba->sli4_hba.fcp_cq_map &&
14020 (cqid == phba->sli4_hba.fcp_cq_map[qidx])) {
14021 /* Process FCP command completion */
14022 cq = phba->sli4_hba.fcp_cq[qidx];
14026 if (phba->sli4_hba.nvmels_cq &&
14027 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
14028 /* Process NVME unsol rcv */
14029 cq = phba->sli4_hba.nvmels_cq;
14032 /* Otherwise this is a Slow path event */
14034 lpfc_sli4_sp_handle_eqe(phba, eqe, phba->sli4_hba.hba_eq[qidx]);
14039 if (unlikely(cqid != cq->queue_id)) {
14040 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14041 "0368 Miss-matched fast-path completion "
14042 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
14043 cqid, cq->queue_id);
14047 /* Save EQ associated with this CQ */
14048 cq->assoc_qp = phba->sli4_hba.hba_eq[qidx];
14050 if (!queue_work(phba->wq, &cq->irqwork))
14051 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14052 "0363 Cannot schedule soft IRQ "
14053 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14054 cqid, cq->queue_id, smp_processor_id());
14058 * lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
14059 * @phba: Pointer to HBA context object.
14060 * @eqe: Pointer to fast-path event queue entry.
14062 * This routine process a event queue entry from the fast-path event queue.
14063 * It will check the MajorCode and MinorCode to determine this is for a
14064 * completion event on a completion queue, if not, an error shall be logged
14065 * and just return. Otherwise, it will get to the corresponding completion
14066 * queue and process all the entries on the completion queue, rearm the
14067 * completion queue, and then return.
14070 lpfc_sli4_hba_process_cq(struct work_struct *work)
14072 struct lpfc_queue *cq =
14073 container_of(work, struct lpfc_queue, irqwork);
14074 struct lpfc_hba *phba = cq->phba;
14075 struct lpfc_cqe *cqe;
14076 bool workposted = false;
14079 /* Process all the entries to the CQ */
14080 while ((cqe = lpfc_sli4_cq_get(cq))) {
14081 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
14082 if (phba->ktime_on)
14083 cq->isr_timestamp = ktime_get_ns();
14085 cq->isr_timestamp = 0;
14087 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
14088 if (!(++ccount % cq->entry_repost))
14092 /* Track the max number of CQEs processed in 1 EQ */
14093 if (ccount > cq->CQ_max_cqe)
14094 cq->CQ_max_cqe = ccount;
14095 cq->assoc_qp->EQ_cqe_cnt += ccount;
14097 /* Catch the no cq entry condition */
14098 if (unlikely(ccount == 0))
14099 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14100 "0369 No entry from fast-path completion "
14101 "queue fcpcqid=%d\n", cq->queue_id);
14103 /* In any case, flash and re-arm the CQ */
14104 phba->sli4_hba.sli4_cq_release(cq, LPFC_QUEUE_REARM);
14106 /* wake up worker thread if there are works to be done */
14108 lpfc_worker_wake_up(phba);
14112 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
14114 struct lpfc_eqe *eqe;
14116 /* walk all the EQ entries and drop on the floor */
14117 while ((eqe = lpfc_sli4_eq_get(eq)))
14120 /* Clear and re-arm the EQ */
14121 phba->sli4_hba.sli4_eq_release(eq, LPFC_QUEUE_REARM);
14126 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
14128 * @phba: Pointer to HBA context object.
14129 * @eqe: Pointer to fast-path event queue entry.
14131 * This routine process a event queue entry from the Flash Optimized Fabric
14132 * event queue. It will check the MajorCode and MinorCode to determine this
14133 * is for a completion event on a completion queue, if not, an error shall be
14134 * logged and just return. Otherwise, it will get to the corresponding
14135 * completion queue and process all the entries on the completion queue, rearm
14136 * the completion queue, and then return.
14139 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
14141 struct lpfc_queue *cq;
14144 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
14145 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14146 "9147 Not a valid completion "
14147 "event: majorcode=x%x, minorcode=x%x\n",
14148 bf_get_le32(lpfc_eqe_major_code, eqe),
14149 bf_get_le32(lpfc_eqe_minor_code, eqe));
14153 /* Get the reference to the corresponding CQ */
14154 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14156 /* Next check for OAS */
14157 cq = phba->sli4_hba.oas_cq;
14158 if (unlikely(!cq)) {
14159 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
14160 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14161 "9148 OAS completion queue "
14162 "does not exist\n");
14166 if (unlikely(cqid != cq->queue_id)) {
14167 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14168 "9149 Miss-matched fast-path compl "
14169 "queue id: eqcqid=%d, fcpcqid=%d\n",
14170 cqid, cq->queue_id);
14174 /* Save EQ associated with this CQ */
14175 cq->assoc_qp = phba->sli4_hba.fof_eq;
14177 /* CQ work will be processed on CPU affinitized to this IRQ */
14178 if (!queue_work(phba->wq, &cq->irqwork))
14179 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14180 "0367 Cannot schedule soft IRQ "
14181 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14182 cqid, cq->queue_id, smp_processor_id());
14186 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
14187 * @irq: Interrupt number.
14188 * @dev_id: The device context pointer.
14190 * This function is directly called from the PCI layer as an interrupt
14191 * service routine when device with SLI-4 interface spec is enabled with
14192 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
14193 * IOCB ring event in the HBA. However, when the device is enabled with either
14194 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
14195 * device-level interrupt handler. When the PCI slot is in error recovery
14196 * or the HBA is undergoing initialization, the interrupt handler will not
14197 * process the interrupt. The Flash Optimized Fabric ring event are handled in
14198 * the intrrupt context. This function is called without any lock held.
14199 * It gets the hbalock to access and update SLI data structures. Note that,
14200 * the EQ to CQ are one-to-one map such that the EQ index is
14201 * equal to that of CQ index.
14203 * This function returns IRQ_HANDLED when interrupt is handled else it
14204 * returns IRQ_NONE.
14207 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
14209 struct lpfc_hba *phba;
14210 struct lpfc_hba_eq_hdl *hba_eq_hdl;
14211 struct lpfc_queue *eq;
14212 struct lpfc_eqe *eqe;
14213 unsigned long iflag;
14216 /* Get the driver's phba structure from the dev_id */
14217 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
14218 phba = hba_eq_hdl->phba;
14220 if (unlikely(!phba))
14223 /* Get to the EQ struct associated with this vector */
14224 eq = phba->sli4_hba.fof_eq;
14228 /* Check device state for handling interrupt */
14229 if (unlikely(lpfc_intr_state_check(phba))) {
14230 /* Check again for link_state with lock held */
14231 spin_lock_irqsave(&phba->hbalock, iflag);
14232 if (phba->link_state < LPFC_LINK_DOWN)
14233 /* Flush, clear interrupt, and rearm the EQ */
14234 lpfc_sli4_eq_flush(phba, eq);
14235 spin_unlock_irqrestore(&phba->hbalock, iflag);
14240 * Process all the event on FCP fast-path EQ
14242 while ((eqe = lpfc_sli4_eq_get(eq))) {
14243 lpfc_sli4_fof_handle_eqe(phba, eqe);
14244 if (!(++ecount % eq->entry_repost))
14246 eq->EQ_processed++;
14249 /* Track the max number of EQEs processed in 1 intr */
14250 if (ecount > eq->EQ_max_eqe)
14251 eq->EQ_max_eqe = ecount;
14254 if (unlikely(ecount == 0)) {
14257 if (phba->intr_type == MSIX)
14258 /* MSI-X treated interrupt served as no EQ share INT */
14259 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14260 "9145 MSI-X interrupt with no EQE\n");
14262 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14263 "9146 ISR interrupt with no EQE\n");
14264 /* Non MSI-X treated on interrupt as EQ share INT */
14268 /* Always clear and re-arm the fast-path EQ */
14269 phba->sli4_hba.sli4_eq_release(eq, LPFC_QUEUE_REARM);
14270 return IRQ_HANDLED;
14274 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
14275 * @irq: Interrupt number.
14276 * @dev_id: The device context pointer.
14278 * This function is directly called from the PCI layer as an interrupt
14279 * service routine when device with SLI-4 interface spec is enabled with
14280 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
14281 * ring event in the HBA. However, when the device is enabled with either
14282 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
14283 * device-level interrupt handler. When the PCI slot is in error recovery
14284 * or the HBA is undergoing initialization, the interrupt handler will not
14285 * process the interrupt. The SCSI FCP fast-path ring event are handled in
14286 * the intrrupt context. This function is called without any lock held.
14287 * It gets the hbalock to access and update SLI data structures. Note that,
14288 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
14289 * equal to that of FCP CQ index.
14291 * The link attention and ELS ring attention events are handled
14292 * by the worker thread. The interrupt handler signals the worker thread
14293 * and returns for these events. This function is called without any lock
14294 * held. It gets the hbalock to access and update SLI data structures.
14296 * This function returns IRQ_HANDLED when interrupt is handled else it
14297 * returns IRQ_NONE.
14300 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
14302 struct lpfc_hba *phba;
14303 struct lpfc_hba_eq_hdl *hba_eq_hdl;
14304 struct lpfc_queue *fpeq;
14305 struct lpfc_eqe *eqe;
14306 unsigned long iflag;
14310 /* Get the driver's phba structure from the dev_id */
14311 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
14312 phba = hba_eq_hdl->phba;
14313 hba_eqidx = hba_eq_hdl->idx;
14315 if (unlikely(!phba))
14317 if (unlikely(!phba->sli4_hba.hba_eq))
14320 /* Get to the EQ struct associated with this vector */
14321 fpeq = phba->sli4_hba.hba_eq[hba_eqidx];
14322 if (unlikely(!fpeq))
14325 if (lpfc_fcp_look_ahead) {
14326 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use))
14327 phba->sli4_hba.sli4_eq_clr_intr(fpeq);
14329 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14334 /* Check device state for handling interrupt */
14335 if (unlikely(lpfc_intr_state_check(phba))) {
14336 /* Check again for link_state with lock held */
14337 spin_lock_irqsave(&phba->hbalock, iflag);
14338 if (phba->link_state < LPFC_LINK_DOWN)
14339 /* Flush, clear interrupt, and rearm the EQ */
14340 lpfc_sli4_eq_flush(phba, fpeq);
14341 spin_unlock_irqrestore(&phba->hbalock, iflag);
14342 if (lpfc_fcp_look_ahead)
14343 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14348 * Process all the event on FCP fast-path EQ
14350 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
14351 lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx);
14352 if (!(++ecount % fpeq->entry_repost))
14354 fpeq->EQ_processed++;
14357 /* Track the max number of EQEs processed in 1 intr */
14358 if (ecount > fpeq->EQ_max_eqe)
14359 fpeq->EQ_max_eqe = ecount;
14361 /* Always clear and re-arm the fast-path EQ */
14362 phba->sli4_hba.sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
14364 if (unlikely(ecount == 0)) {
14365 fpeq->EQ_no_entry++;
14367 if (lpfc_fcp_look_ahead) {
14368 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14372 if (phba->intr_type == MSIX)
14373 /* MSI-X treated interrupt served as no EQ share INT */
14374 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14375 "0358 MSI-X interrupt with no EQE\n");
14377 /* Non MSI-X treated on interrupt as EQ share INT */
14381 if (lpfc_fcp_look_ahead)
14382 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
14384 return IRQ_HANDLED;
14385 } /* lpfc_sli4_fp_intr_handler */
14388 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
14389 * @irq: Interrupt number.
14390 * @dev_id: The device context pointer.
14392 * This function is the device-level interrupt handler to device with SLI-4
14393 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
14394 * interrupt mode is enabled and there is an event in the HBA which requires
14395 * driver attention. This function invokes the slow-path interrupt attention
14396 * handling function and fast-path interrupt attention handling function in
14397 * turn to process the relevant HBA attention events. This function is called
14398 * without any lock held. It gets the hbalock to access and update SLI data
14401 * This function returns IRQ_HANDLED when interrupt is handled, else it
14402 * returns IRQ_NONE.
14405 lpfc_sli4_intr_handler(int irq, void *dev_id)
14407 struct lpfc_hba *phba;
14408 irqreturn_t hba_irq_rc;
14409 bool hba_handled = false;
14412 /* Get the driver's phba structure from the dev_id */
14413 phba = (struct lpfc_hba *)dev_id;
14415 if (unlikely(!phba))
14419 * Invoke fast-path host attention interrupt handling as appropriate.
14421 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) {
14422 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
14423 &phba->sli4_hba.hba_eq_hdl[qidx]);
14424 if (hba_irq_rc == IRQ_HANDLED)
14425 hba_handled |= true;
14428 if (phba->cfg_fof) {
14429 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
14430 &phba->sli4_hba.hba_eq_hdl[qidx]);
14431 if (hba_irq_rc == IRQ_HANDLED)
14432 hba_handled |= true;
14435 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
14436 } /* lpfc_sli4_intr_handler */
14439 * lpfc_sli4_queue_free - free a queue structure and associated memory
14440 * @queue: The queue structure to free.
14442 * This function frees a queue structure and the DMAable memory used for
14443 * the host resident queue. This function must be called after destroying the
14444 * queue on the HBA.
14447 lpfc_sli4_queue_free(struct lpfc_queue *queue)
14449 struct lpfc_dmabuf *dmabuf;
14454 while (!list_empty(&queue->page_list)) {
14455 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
14457 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
14458 dmabuf->virt, dmabuf->phys);
14462 lpfc_free_rq_buffer(queue->phba, queue);
14463 kfree(queue->rqbp);
14466 if (!list_empty(&queue->wq_list))
14467 list_del(&queue->wq_list);
14474 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
14475 * @phba: The HBA that this queue is being created on.
14476 * @page_size: The size of a queue page
14477 * @entry_size: The size of each queue entry for this queue.
14478 * @entry count: The number of entries that this queue will handle.
14480 * This function allocates a queue structure and the DMAable memory used for
14481 * the host resident queue. This function must be called before creating the
14482 * queue on the HBA.
14484 struct lpfc_queue *
14485 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
14486 uint32_t entry_size, uint32_t entry_count)
14488 struct lpfc_queue *queue;
14489 struct lpfc_dmabuf *dmabuf;
14490 int x, total_qe_count;
14492 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14494 if (!phba->sli4_hba.pc_sli4_params.supported)
14495 hw_page_size = page_size;
14497 queue = kzalloc(sizeof(struct lpfc_queue) +
14498 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
14501 queue->page_count = (ALIGN(entry_size * entry_count,
14502 hw_page_size))/hw_page_size;
14504 /* If needed, Adjust page count to match the max the adapter supports */
14505 if (queue->page_count > phba->sli4_hba.pc_sli4_params.wqpcnt)
14506 queue->page_count = phba->sli4_hba.pc_sli4_params.wqpcnt;
14508 INIT_LIST_HEAD(&queue->list);
14509 INIT_LIST_HEAD(&queue->wq_list);
14510 INIT_LIST_HEAD(&queue->wqfull_list);
14511 INIT_LIST_HEAD(&queue->page_list);
14512 INIT_LIST_HEAD(&queue->child_list);
14514 /* Set queue parameters now. If the system cannot provide memory
14515 * resources, the free routine needs to know what was allocated.
14517 queue->entry_size = entry_size;
14518 queue->entry_count = entry_count;
14519 queue->page_size = hw_page_size;
14520 queue->phba = phba;
14522 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
14523 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
14526 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
14527 hw_page_size, &dmabuf->phys,
14529 if (!dmabuf->virt) {
14533 dmabuf->buffer_tag = x;
14534 list_add_tail(&dmabuf->list, &queue->page_list);
14535 /* initialize queue's entry array */
14536 dma_pointer = dmabuf->virt;
14537 for (; total_qe_count < entry_count &&
14538 dma_pointer < (hw_page_size + dmabuf->virt);
14539 total_qe_count++, dma_pointer += entry_size) {
14540 queue->qe[total_qe_count].address = dma_pointer;
14543 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
14544 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
14546 /* entry_repost will be set during q creation */
14550 lpfc_sli4_queue_free(queue);
14555 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
14556 * @phba: HBA structure that indicates port to create a queue on.
14557 * @pci_barset: PCI BAR set flag.
14559 * This function shall perform iomap of the specified PCI BAR address to host
14560 * memory address if not already done so and return it. The returned host
14561 * memory address can be NULL.
14563 static void __iomem *
14564 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
14569 switch (pci_barset) {
14570 case WQ_PCI_BAR_0_AND_1:
14571 return phba->pci_bar0_memmap_p;
14572 case WQ_PCI_BAR_2_AND_3:
14573 return phba->pci_bar2_memmap_p;
14574 case WQ_PCI_BAR_4_AND_5:
14575 return phba->pci_bar4_memmap_p;
14583 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on FCP EQs
14584 * @phba: HBA structure that indicates port to create a queue on.
14585 * @startq: The starting FCP EQ to modify
14587 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
14588 * The command allows up to LPFC_MAX_EQ_DELAY_EQID_CNT EQ ID's to be
14589 * updated in one mailbox command.
14591 * The @phba struct is used to send mailbox command to HBA. The @startq
14592 * is used to get the starting FCP EQ to change.
14593 * This function is asynchronous and will wait for the mailbox
14594 * command to finish before continuing.
14596 * On success this function will return a zero. If unable to allocate enough
14597 * memory this function will return -ENOMEM. If the queue create mailbox command
14598 * fails this function will return -ENXIO.
14601 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
14602 uint32_t numq, uint32_t imax)
14604 struct lpfc_mbx_modify_eq_delay *eq_delay;
14605 LPFC_MBOXQ_t *mbox;
14606 struct lpfc_queue *eq;
14607 int cnt, rc, length, status = 0;
14608 uint32_t shdr_status, shdr_add_status;
14609 uint32_t result, val;
14611 union lpfc_sli4_cfg_shdr *shdr;
14614 if (startq >= phba->io_channel_irqs)
14617 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14620 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
14621 sizeof(struct lpfc_sli4_cfg_mhdr));
14622 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14623 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
14624 length, LPFC_SLI4_MBX_EMBED);
14625 eq_delay = &mbox->u.mqe.un.eq_delay;
14627 /* Calculate delay multiper from maximum interrupt per second */
14628 result = imax / phba->io_channel_irqs;
14629 if (result > LPFC_DMULT_CONST || result == 0)
14632 dmult = LPFC_DMULT_CONST/result - 1;
14633 if (dmult > LPFC_DMULT_MAX)
14634 dmult = LPFC_DMULT_MAX;
14637 for (qidx = startq; qidx < phba->io_channel_irqs; qidx++) {
14638 eq = phba->sli4_hba.hba_eq[qidx];
14642 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
14643 eq_delay->u.request.eq[cnt].phase = 0;
14644 eq_delay->u.request.eq[cnt].delay_multi = dmult;
14647 /* q_mode is only used for auto_imax */
14648 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
14649 /* Use EQ Delay Register method for q_mode */
14651 /* Convert for EQ Delay register */
14652 val = phba->cfg_fcp_imax;
14654 /* First, interrupts per sec per EQ */
14655 val = phba->cfg_fcp_imax /
14656 phba->io_channel_irqs;
14658 /* us delay between each interrupt */
14659 val = LPFC_SEC_TO_USEC / val;
14669 eq_delay->u.request.num_eq = cnt;
14671 mbox->vport = phba->pport;
14672 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14673 mbox->context1 = NULL;
14674 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14675 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
14676 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14677 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14678 if (shdr_status || shdr_add_status || rc) {
14679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14680 "2512 MODIFY_EQ_DELAY mailbox failed with "
14681 "status x%x add_status x%x, mbx status x%x\n",
14682 shdr_status, shdr_add_status, rc);
14685 mempool_free(mbox, phba->mbox_mem_pool);
14690 * lpfc_eq_create - Create an Event Queue on the HBA
14691 * @phba: HBA structure that indicates port to create a queue on.
14692 * @eq: The queue structure to use to create the event queue.
14693 * @imax: The maximum interrupt per second limit.
14695 * This function creates an event queue, as detailed in @eq, on a port,
14696 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
14698 * The @phba struct is used to send mailbox command to HBA. The @eq struct
14699 * is used to get the entry count and entry size that are necessary to
14700 * determine the number of pages to allocate and use for this queue. This
14701 * function will send the EQ_CREATE mailbox command to the HBA to setup the
14702 * event queue. This function is asynchronous and will wait for the mailbox
14703 * command to finish before continuing.
14705 * On success this function will return a zero. If unable to allocate enough
14706 * memory this function will return -ENOMEM. If the queue create mailbox command
14707 * fails this function will return -ENXIO.
14710 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
14712 struct lpfc_mbx_eq_create *eq_create;
14713 LPFC_MBOXQ_t *mbox;
14714 int rc, length, status = 0;
14715 struct lpfc_dmabuf *dmabuf;
14716 uint32_t shdr_status, shdr_add_status;
14717 union lpfc_sli4_cfg_shdr *shdr;
14719 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14721 /* sanity check on queue memory */
14724 if (!phba->sli4_hba.pc_sli4_params.supported)
14725 hw_page_size = SLI4_PAGE_SIZE;
14727 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14730 length = (sizeof(struct lpfc_mbx_eq_create) -
14731 sizeof(struct lpfc_sli4_cfg_mhdr));
14732 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14733 LPFC_MBOX_OPCODE_EQ_CREATE,
14734 length, LPFC_SLI4_MBX_EMBED);
14735 eq_create = &mbox->u.mqe.un.eq_create;
14736 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14737 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14739 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14741 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
14743 /* Use version 2 of CREATE_EQ if eqav is set */
14744 if (phba->sli4_hba.pc_sli4_params.eqav) {
14745 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14746 LPFC_Q_CREATE_VERSION_2);
14747 bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
14748 phba->sli4_hba.pc_sli4_params.eqav);
14751 /* don't setup delay multiplier using EQ_CREATE */
14753 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14755 switch (eq->entry_count) {
14757 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14758 "0360 Unsupported EQ count. (%d)\n",
14760 if (eq->entry_count < 256)
14762 /* otherwise default to smallest count (drop through) */
14764 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14768 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14772 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
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 list_for_each_entry(dmabuf, &eq->page_list, list) {
14785 memset(dmabuf->virt, 0, hw_page_size);
14786 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14787 putPaddrLow(dmabuf->phys);
14788 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14789 putPaddrHigh(dmabuf->phys);
14791 mbox->vport = phba->pport;
14792 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14793 mbox->context1 = NULL;
14794 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14795 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14796 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14797 if (shdr_status || shdr_add_status || rc) {
14798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14799 "2500 EQ_CREATE mailbox failed with "
14800 "status x%x add_status x%x, mbx status x%x\n",
14801 shdr_status, shdr_add_status, rc);
14804 eq->type = LPFC_EQ;
14805 eq->subtype = LPFC_NONE;
14806 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14807 if (eq->queue_id == 0xFFFF)
14809 eq->host_index = 0;
14811 eq->entry_repost = LPFC_EQ_REPOST;
14813 mempool_free(mbox, phba->mbox_mem_pool);
14818 * lpfc_cq_create - Create a Completion Queue on the HBA
14819 * @phba: HBA structure that indicates port to create a queue on.
14820 * @cq: The queue structure to use to create the completion queue.
14821 * @eq: The event queue to bind this completion queue to.
14823 * This function creates a completion queue, as detailed in @wq, on a port,
14824 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14826 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14827 * is used to get the entry count and entry size that are necessary to
14828 * determine the number of pages to allocate and use for this queue. The @eq
14829 * is used to indicate which event queue to bind this completion queue to. This
14830 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14831 * completion queue. This function is asynchronous and will wait for the mailbox
14832 * command to finish before continuing.
14834 * On success this function will return a zero. If unable to allocate enough
14835 * memory this function will return -ENOMEM. If the queue create mailbox command
14836 * fails this function will return -ENXIO.
14839 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14840 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14842 struct lpfc_mbx_cq_create *cq_create;
14843 struct lpfc_dmabuf *dmabuf;
14844 LPFC_MBOXQ_t *mbox;
14845 int rc, length, status = 0;
14846 uint32_t shdr_status, shdr_add_status;
14847 union lpfc_sli4_cfg_shdr *shdr;
14849 /* sanity check on queue memory */
14853 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14856 length = (sizeof(struct lpfc_mbx_cq_create) -
14857 sizeof(struct lpfc_sli4_cfg_mhdr));
14858 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14859 LPFC_MBOX_OPCODE_CQ_CREATE,
14860 length, LPFC_SLI4_MBX_EMBED);
14861 cq_create = &mbox->u.mqe.un.cq_create;
14862 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
14863 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14865 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14866 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
14867 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14868 phba->sli4_hba.pc_sli4_params.cqv);
14869 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
14870 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
14871 (cq->page_size / SLI4_PAGE_SIZE));
14872 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14874 bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
14875 phba->sli4_hba.pc_sli4_params.cqav);
14877 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14880 switch (cq->entry_count) {
14883 if (phba->sli4_hba.pc_sli4_params.cqv ==
14884 LPFC_Q_CREATE_VERSION_2) {
14885 cq_create->u.request.context.lpfc_cq_context_count =
14887 bf_set(lpfc_cq_context_count,
14888 &cq_create->u.request.context,
14889 LPFC_CQ_CNT_WORD7);
14894 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14895 "0361 Unsupported CQ count: "
14896 "entry cnt %d sz %d pg cnt %d\n",
14897 cq->entry_count, cq->entry_size,
14899 if (cq->entry_count < 256) {
14903 /* otherwise default to smallest count (drop through) */
14905 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14909 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14913 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14917 list_for_each_entry(dmabuf, &cq->page_list, list) {
14918 memset(dmabuf->virt, 0, cq->page_size);
14919 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14920 putPaddrLow(dmabuf->phys);
14921 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14922 putPaddrHigh(dmabuf->phys);
14924 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14926 /* The IOCTL status is embedded in the mailbox subheader. */
14927 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14928 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14929 if (shdr_status || shdr_add_status || rc) {
14930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14931 "2501 CQ_CREATE mailbox failed with "
14932 "status x%x add_status x%x, mbx status x%x\n",
14933 shdr_status, shdr_add_status, rc);
14937 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14938 if (cq->queue_id == 0xFFFF) {
14942 /* link the cq onto the parent eq child list */
14943 list_add_tail(&cq->list, &eq->child_list);
14944 /* Set up completion queue's type and subtype */
14946 cq->subtype = subtype;
14947 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14948 cq->assoc_qid = eq->queue_id;
14949 cq->host_index = 0;
14951 cq->entry_repost = LPFC_CQ_REPOST;
14954 mempool_free(mbox, phba->mbox_mem_pool);
14959 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
14960 * @phba: HBA structure that indicates port to create a queue on.
14961 * @cqp: The queue structure array to use to create the completion queues.
14962 * @eqp: The event queue array to bind these completion queues to.
14964 * This function creates a set of completion queue, s to support MRQ
14965 * as detailed in @cqp, on a port,
14966 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
14968 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14969 * is used to get the entry count and entry size that are necessary to
14970 * determine the number of pages to allocate and use for this queue. The @eq
14971 * is used to indicate which event queue to bind this completion queue to. This
14972 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
14973 * completion queue. This function is asynchronous and will wait for the mailbox
14974 * command to finish before continuing.
14976 * On success this function will return a zero. If unable to allocate enough
14977 * memory this function will return -ENOMEM. If the queue create mailbox command
14978 * fails this function will return -ENXIO.
14981 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
14982 struct lpfc_queue **eqp, uint32_t type, uint32_t subtype)
14984 struct lpfc_queue *cq;
14985 struct lpfc_queue *eq;
14986 struct lpfc_mbx_cq_create_set *cq_set;
14987 struct lpfc_dmabuf *dmabuf;
14988 LPFC_MBOXQ_t *mbox;
14989 int rc, length, alloclen, status = 0;
14990 int cnt, idx, numcq, page_idx = 0;
14991 uint32_t shdr_status, shdr_add_status;
14992 union lpfc_sli4_cfg_shdr *shdr;
14993 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14995 /* sanity check on queue memory */
14996 numcq = phba->cfg_nvmet_mrq;
14997 if (!cqp || !eqp || !numcq)
15000 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15004 length = sizeof(struct lpfc_mbx_cq_create_set);
15005 length += ((numcq * cqp[0]->page_count) *
15006 sizeof(struct dma_address));
15007 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15008 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
15009 LPFC_SLI4_MBX_NEMBED);
15010 if (alloclen < length) {
15011 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15012 "3098 Allocated DMA memory size (%d) is "
15013 "less than the requested DMA memory size "
15014 "(%d)\n", alloclen, length);
15018 cq_set = mbox->sge_array->addr[0];
15019 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
15020 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
15022 for (idx = 0; idx < numcq; idx++) {
15029 if (!phba->sli4_hba.pc_sli4_params.supported)
15030 hw_page_size = cq->page_size;
15034 bf_set(lpfc_mbx_cq_create_set_page_size,
15035 &cq_set->u.request,
15036 (hw_page_size / SLI4_PAGE_SIZE));
15037 bf_set(lpfc_mbx_cq_create_set_num_pages,
15038 &cq_set->u.request, cq->page_count);
15039 bf_set(lpfc_mbx_cq_create_set_evt,
15040 &cq_set->u.request, 1);
15041 bf_set(lpfc_mbx_cq_create_set_valid,
15042 &cq_set->u.request, 1);
15043 bf_set(lpfc_mbx_cq_create_set_cqe_size,
15044 &cq_set->u.request, 0);
15045 bf_set(lpfc_mbx_cq_create_set_num_cq,
15046 &cq_set->u.request, numcq);
15047 bf_set(lpfc_mbx_cq_create_set_autovalid,
15048 &cq_set->u.request,
15049 phba->sli4_hba.pc_sli4_params.cqav);
15050 switch (cq->entry_count) {
15053 if (phba->sli4_hba.pc_sli4_params.cqv ==
15054 LPFC_Q_CREATE_VERSION_2) {
15055 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15056 &cq_set->u.request,
15058 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15059 &cq_set->u.request,
15060 LPFC_CQ_CNT_WORD7);
15065 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15066 "3118 Bad CQ count. (%d)\n",
15068 if (cq->entry_count < 256) {
15072 /* otherwise default to smallest (drop thru) */
15074 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15075 &cq_set->u.request, LPFC_CQ_CNT_256);
15078 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15079 &cq_set->u.request, LPFC_CQ_CNT_512);
15082 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15083 &cq_set->u.request, LPFC_CQ_CNT_1024);
15086 bf_set(lpfc_mbx_cq_create_set_eq_id0,
15087 &cq_set->u.request, eq->queue_id);
15090 bf_set(lpfc_mbx_cq_create_set_eq_id1,
15091 &cq_set->u.request, eq->queue_id);
15094 bf_set(lpfc_mbx_cq_create_set_eq_id2,
15095 &cq_set->u.request, eq->queue_id);
15098 bf_set(lpfc_mbx_cq_create_set_eq_id3,
15099 &cq_set->u.request, eq->queue_id);
15102 bf_set(lpfc_mbx_cq_create_set_eq_id4,
15103 &cq_set->u.request, eq->queue_id);
15106 bf_set(lpfc_mbx_cq_create_set_eq_id5,
15107 &cq_set->u.request, eq->queue_id);
15110 bf_set(lpfc_mbx_cq_create_set_eq_id6,
15111 &cq_set->u.request, eq->queue_id);
15114 bf_set(lpfc_mbx_cq_create_set_eq_id7,
15115 &cq_set->u.request, eq->queue_id);
15118 bf_set(lpfc_mbx_cq_create_set_eq_id8,
15119 &cq_set->u.request, eq->queue_id);
15122 bf_set(lpfc_mbx_cq_create_set_eq_id9,
15123 &cq_set->u.request, eq->queue_id);
15126 bf_set(lpfc_mbx_cq_create_set_eq_id10,
15127 &cq_set->u.request, eq->queue_id);
15130 bf_set(lpfc_mbx_cq_create_set_eq_id11,
15131 &cq_set->u.request, eq->queue_id);
15134 bf_set(lpfc_mbx_cq_create_set_eq_id12,
15135 &cq_set->u.request, eq->queue_id);
15138 bf_set(lpfc_mbx_cq_create_set_eq_id13,
15139 &cq_set->u.request, eq->queue_id);
15142 bf_set(lpfc_mbx_cq_create_set_eq_id14,
15143 &cq_set->u.request, eq->queue_id);
15146 bf_set(lpfc_mbx_cq_create_set_eq_id15,
15147 &cq_set->u.request, eq->queue_id);
15151 /* link the cq onto the parent eq child list */
15152 list_add_tail(&cq->list, &eq->child_list);
15153 /* Set up completion queue's type and subtype */
15155 cq->subtype = subtype;
15156 cq->assoc_qid = eq->queue_id;
15157 cq->host_index = 0;
15159 cq->entry_repost = LPFC_CQ_REPOST;
15163 list_for_each_entry(dmabuf, &cq->page_list, list) {
15164 memset(dmabuf->virt, 0, hw_page_size);
15165 cnt = page_idx + dmabuf->buffer_tag;
15166 cq_set->u.request.page[cnt].addr_lo =
15167 putPaddrLow(dmabuf->phys);
15168 cq_set->u.request.page[cnt].addr_hi =
15169 putPaddrHigh(dmabuf->phys);
15175 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15177 /* The IOCTL status is embedded in the mailbox subheader. */
15178 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15179 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15180 if (shdr_status || shdr_add_status || rc) {
15181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15182 "3119 CQ_CREATE_SET mailbox failed with "
15183 "status x%x add_status x%x, mbx status x%x\n",
15184 shdr_status, shdr_add_status, rc);
15188 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
15189 if (rc == 0xFFFF) {
15194 for (idx = 0; idx < numcq; idx++) {
15196 cq->queue_id = rc + idx;
15200 lpfc_sli4_mbox_cmd_free(phba, mbox);
15205 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
15206 * @phba: HBA structure that indicates port to create a queue on.
15207 * @mq: The queue structure to use to create the mailbox queue.
15208 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
15209 * @cq: The completion queue to associate with this cq.
15211 * This function provides failback (fb) functionality when the
15212 * mq_create_ext fails on older FW generations. It's purpose is identical
15213 * to mq_create_ext otherwise.
15215 * This routine cannot fail as all attributes were previously accessed and
15216 * initialized in mq_create_ext.
15219 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
15220 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
15222 struct lpfc_mbx_mq_create *mq_create;
15223 struct lpfc_dmabuf *dmabuf;
15226 length = (sizeof(struct lpfc_mbx_mq_create) -
15227 sizeof(struct lpfc_sli4_cfg_mhdr));
15228 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15229 LPFC_MBOX_OPCODE_MQ_CREATE,
15230 length, LPFC_SLI4_MBX_EMBED);
15231 mq_create = &mbox->u.mqe.un.mq_create;
15232 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
15234 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
15236 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
15237 switch (mq->entry_count) {
15239 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15240 LPFC_MQ_RING_SIZE_16);
15243 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15244 LPFC_MQ_RING_SIZE_32);
15247 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15248 LPFC_MQ_RING_SIZE_64);
15251 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15252 LPFC_MQ_RING_SIZE_128);
15255 list_for_each_entry(dmabuf, &mq->page_list, list) {
15256 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15257 putPaddrLow(dmabuf->phys);
15258 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15259 putPaddrHigh(dmabuf->phys);
15264 * lpfc_mq_create - Create a mailbox Queue on the HBA
15265 * @phba: HBA structure that indicates port to create a queue on.
15266 * @mq: The queue structure to use to create the mailbox queue.
15267 * @cq: The completion queue to associate with this cq.
15268 * @subtype: The queue's subtype.
15270 * This function creates a mailbox queue, as detailed in @mq, on a port,
15271 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
15273 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15274 * is used to get the entry count and entry size that are necessary to
15275 * determine the number of pages to allocate and use for this queue. This
15276 * function will send the MQ_CREATE mailbox command to the HBA to setup the
15277 * mailbox queue. This function is asynchronous and will wait for the mailbox
15278 * command to finish before continuing.
15280 * On success this function will return a zero. If unable to allocate enough
15281 * memory this function will return -ENOMEM. If the queue create mailbox command
15282 * fails this function will return -ENXIO.
15285 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
15286 struct lpfc_queue *cq, uint32_t subtype)
15288 struct lpfc_mbx_mq_create *mq_create;
15289 struct lpfc_mbx_mq_create_ext *mq_create_ext;
15290 struct lpfc_dmabuf *dmabuf;
15291 LPFC_MBOXQ_t *mbox;
15292 int rc, length, status = 0;
15293 uint32_t shdr_status, shdr_add_status;
15294 union lpfc_sli4_cfg_shdr *shdr;
15295 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15297 /* sanity check on queue memory */
15300 if (!phba->sli4_hba.pc_sli4_params.supported)
15301 hw_page_size = SLI4_PAGE_SIZE;
15303 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15306 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
15307 sizeof(struct lpfc_sli4_cfg_mhdr));
15308 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15309 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
15310 length, LPFC_SLI4_MBX_EMBED);
15312 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
15313 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
15314 bf_set(lpfc_mbx_mq_create_ext_num_pages,
15315 &mq_create_ext->u.request, mq->page_count);
15316 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
15317 &mq_create_ext->u.request, 1);
15318 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
15319 &mq_create_ext->u.request, 1);
15320 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
15321 &mq_create_ext->u.request, 1);
15322 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
15323 &mq_create_ext->u.request, 1);
15324 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
15325 &mq_create_ext->u.request, 1);
15326 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
15327 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15328 phba->sli4_hba.pc_sli4_params.mqv);
15329 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
15330 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
15333 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
15335 switch (mq->entry_count) {
15337 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15338 "0362 Unsupported MQ count. (%d)\n",
15340 if (mq->entry_count < 16) {
15344 /* otherwise default to smallest count (drop through) */
15346 bf_set(lpfc_mq_context_ring_size,
15347 &mq_create_ext->u.request.context,
15348 LPFC_MQ_RING_SIZE_16);
15351 bf_set(lpfc_mq_context_ring_size,
15352 &mq_create_ext->u.request.context,
15353 LPFC_MQ_RING_SIZE_32);
15356 bf_set(lpfc_mq_context_ring_size,
15357 &mq_create_ext->u.request.context,
15358 LPFC_MQ_RING_SIZE_64);
15361 bf_set(lpfc_mq_context_ring_size,
15362 &mq_create_ext->u.request.context,
15363 LPFC_MQ_RING_SIZE_128);
15366 list_for_each_entry(dmabuf, &mq->page_list, list) {
15367 memset(dmabuf->virt, 0, hw_page_size);
15368 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
15369 putPaddrLow(dmabuf->phys);
15370 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
15371 putPaddrHigh(dmabuf->phys);
15373 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15374 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15375 &mq_create_ext->u.response);
15376 if (rc != MBX_SUCCESS) {
15377 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15378 "2795 MQ_CREATE_EXT failed with "
15379 "status x%x. Failback to MQ_CREATE.\n",
15381 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
15382 mq_create = &mbox->u.mqe.un.mq_create;
15383 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15384 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
15385 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15386 &mq_create->u.response);
15389 /* The IOCTL status is embedded in the mailbox subheader. */
15390 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15391 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15392 if (shdr_status || shdr_add_status || rc) {
15393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15394 "2502 MQ_CREATE mailbox failed with "
15395 "status x%x add_status x%x, mbx status x%x\n",
15396 shdr_status, shdr_add_status, rc);
15400 if (mq->queue_id == 0xFFFF) {
15404 mq->type = LPFC_MQ;
15405 mq->assoc_qid = cq->queue_id;
15406 mq->subtype = subtype;
15407 mq->host_index = 0;
15409 mq->entry_repost = LPFC_MQ_REPOST;
15411 /* link the mq onto the parent cq child list */
15412 list_add_tail(&mq->list, &cq->child_list);
15414 mempool_free(mbox, phba->mbox_mem_pool);
15419 * lpfc_wq_create - Create a Work Queue on the HBA
15420 * @phba: HBA structure that indicates port to create a queue on.
15421 * @wq: The queue structure to use to create the work queue.
15422 * @cq: The completion queue to bind this work queue to.
15423 * @subtype: The subtype of the work queue indicating its functionality.
15425 * This function creates a work queue, as detailed in @wq, on a port, described
15426 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
15428 * The @phba struct is used to send mailbox command to HBA. The @wq struct
15429 * is used to get the entry count and entry size that are necessary to
15430 * determine the number of pages to allocate and use for this queue. The @cq
15431 * is used to indicate which completion queue to bind this work queue to. This
15432 * function will send the WQ_CREATE mailbox command to the HBA to setup the
15433 * work queue. This function is asynchronous and will wait for the mailbox
15434 * command to finish before continuing.
15436 * On success this function will return a zero. If unable to allocate enough
15437 * memory this function will return -ENOMEM. If the queue create mailbox command
15438 * fails this function will return -ENXIO.
15441 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
15442 struct lpfc_queue *cq, uint32_t subtype)
15444 struct lpfc_mbx_wq_create *wq_create;
15445 struct lpfc_dmabuf *dmabuf;
15446 LPFC_MBOXQ_t *mbox;
15447 int rc, length, status = 0;
15448 uint32_t shdr_status, shdr_add_status;
15449 union lpfc_sli4_cfg_shdr *shdr;
15450 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15451 struct dma_address *page;
15452 void __iomem *bar_memmap_p;
15453 uint32_t db_offset;
15454 uint16_t pci_barset;
15455 uint8_t dpp_barset;
15456 uint32_t dpp_offset;
15457 unsigned long pg_addr;
15458 uint8_t wq_create_version;
15460 /* sanity check on queue memory */
15463 if (!phba->sli4_hba.pc_sli4_params.supported)
15464 hw_page_size = wq->page_size;
15466 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15469 length = (sizeof(struct lpfc_mbx_wq_create) -
15470 sizeof(struct lpfc_sli4_cfg_mhdr));
15471 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15472 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
15473 length, LPFC_SLI4_MBX_EMBED);
15474 wq_create = &mbox->u.mqe.un.wq_create;
15475 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
15476 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
15478 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
15481 /* wqv is the earliest version supported, NOT the latest */
15482 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15483 phba->sli4_hba.pc_sli4_params.wqv);
15485 if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
15486 (wq->page_size > SLI4_PAGE_SIZE))
15487 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15489 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15492 if (phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT)
15493 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15495 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15497 switch (wq_create_version) {
15498 case LPFC_Q_CREATE_VERSION_1:
15499 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
15501 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15502 LPFC_Q_CREATE_VERSION_1);
15504 switch (wq->entry_size) {
15507 bf_set(lpfc_mbx_wq_create_wqe_size,
15508 &wq_create->u.request_1,
15509 LPFC_WQ_WQE_SIZE_64);
15512 bf_set(lpfc_mbx_wq_create_wqe_size,
15513 &wq_create->u.request_1,
15514 LPFC_WQ_WQE_SIZE_128);
15517 /* Request DPP by default */
15518 bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
15519 bf_set(lpfc_mbx_wq_create_page_size,
15520 &wq_create->u.request_1,
15521 (wq->page_size / SLI4_PAGE_SIZE));
15522 page = wq_create->u.request_1.page;
15525 page = wq_create->u.request.page;
15529 list_for_each_entry(dmabuf, &wq->page_list, list) {
15530 memset(dmabuf->virt, 0, hw_page_size);
15531 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
15532 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
15535 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15536 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
15538 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15539 /* The IOCTL status is embedded in the mailbox subheader. */
15540 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15541 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15542 if (shdr_status || shdr_add_status || rc) {
15543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15544 "2503 WQ_CREATE mailbox failed with "
15545 "status x%x add_status x%x, mbx status x%x\n",
15546 shdr_status, shdr_add_status, rc);
15551 if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
15552 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
15553 &wq_create->u.response);
15555 wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
15556 &wq_create->u.response_1);
15558 if (wq->queue_id == 0xFFFF) {
15563 wq->db_format = LPFC_DB_LIST_FORMAT;
15564 if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
15565 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15566 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
15567 &wq_create->u.response);
15568 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
15569 (wq->db_format != LPFC_DB_RING_FORMAT)) {
15570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15571 "3265 WQ[%d] doorbell format "
15572 "not supported: x%x\n",
15573 wq->queue_id, wq->db_format);
15577 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
15578 &wq_create->u.response);
15579 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15581 if (!bar_memmap_p) {
15582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15583 "3263 WQ[%d] failed to memmap "
15584 "pci barset:x%x\n",
15585 wq->queue_id, pci_barset);
15589 db_offset = wq_create->u.response.doorbell_offset;
15590 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
15591 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
15592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15593 "3252 WQ[%d] doorbell offset "
15594 "not supported: x%x\n",
15595 wq->queue_id, db_offset);
15599 wq->db_regaddr = bar_memmap_p + db_offset;
15600 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15601 "3264 WQ[%d]: barset:x%x, offset:x%x, "
15602 "format:x%x\n", wq->queue_id,
15603 pci_barset, db_offset, wq->db_format);
15605 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15607 /* Check if DPP was honored by the firmware */
15608 wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
15609 &wq_create->u.response_1);
15610 if (wq->dpp_enable) {
15611 pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
15612 &wq_create->u.response_1);
15613 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15615 if (!bar_memmap_p) {
15616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15617 "3267 WQ[%d] failed to memmap "
15618 "pci barset:x%x\n",
15619 wq->queue_id, pci_barset);
15623 db_offset = wq_create->u.response_1.doorbell_offset;
15624 wq->db_regaddr = bar_memmap_p + db_offset;
15625 wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
15626 &wq_create->u.response_1);
15627 dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
15628 &wq_create->u.response_1);
15629 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15631 if (!bar_memmap_p) {
15632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15633 "3268 WQ[%d] failed to memmap "
15634 "pci barset:x%x\n",
15635 wq->queue_id, dpp_barset);
15639 dpp_offset = wq_create->u.response_1.dpp_offset;
15640 wq->dpp_regaddr = bar_memmap_p + dpp_offset;
15641 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15642 "3271 WQ[%d]: barset:x%x, offset:x%x, "
15643 "dpp_id:x%x dpp_barset:x%x "
15644 "dpp_offset:x%x\n",
15645 wq->queue_id, pci_barset, db_offset,
15646 wq->dpp_id, dpp_barset, dpp_offset);
15648 /* Enable combined writes for DPP aperture */
15649 pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
15651 rc = set_memory_wc(pg_addr, 1);
15653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15654 "3272 Cannot setup Combined "
15655 "Write on WQ[%d] - disable DPP\n",
15657 phba->cfg_enable_dpp = 0;
15660 phba->cfg_enable_dpp = 0;
15663 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15665 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
15666 if (wq->pring == NULL) {
15670 wq->type = LPFC_WQ;
15671 wq->assoc_qid = cq->queue_id;
15672 wq->subtype = subtype;
15673 wq->host_index = 0;
15675 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
15677 /* link the wq onto the parent cq child list */
15678 list_add_tail(&wq->list, &cq->child_list);
15680 mempool_free(mbox, phba->mbox_mem_pool);
15685 * lpfc_rq_create - Create a Receive Queue on the HBA
15686 * @phba: HBA structure that indicates port to create a queue on.
15687 * @hrq: The queue structure to use to create the header receive queue.
15688 * @drq: The queue structure to use to create the data receive queue.
15689 * @cq: The completion queue to bind this work queue to.
15691 * This function creates a receive buffer queue pair , as detailed in @hrq and
15692 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15695 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15696 * struct is used to get the entry count that is necessary to determine the
15697 * number of pages to use for this queue. The @cq is used to indicate which
15698 * completion queue to bind received buffers that are posted to these queues to.
15699 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15700 * receive queue pair. This function is asynchronous and will wait for the
15701 * mailbox command to finish before continuing.
15703 * On success this function will return a zero. If unable to allocate enough
15704 * memory this function will return -ENOMEM. If the queue create mailbox command
15705 * fails this function will return -ENXIO.
15708 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15709 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
15711 struct lpfc_mbx_rq_create *rq_create;
15712 struct lpfc_dmabuf *dmabuf;
15713 LPFC_MBOXQ_t *mbox;
15714 int rc, length, status = 0;
15715 uint32_t shdr_status, shdr_add_status;
15716 union lpfc_sli4_cfg_shdr *shdr;
15717 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15718 void __iomem *bar_memmap_p;
15719 uint32_t db_offset;
15720 uint16_t pci_barset;
15722 /* sanity check on queue memory */
15723 if (!hrq || !drq || !cq)
15725 if (!phba->sli4_hba.pc_sli4_params.supported)
15726 hw_page_size = SLI4_PAGE_SIZE;
15728 if (hrq->entry_count != drq->entry_count)
15730 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15733 length = (sizeof(struct lpfc_mbx_rq_create) -
15734 sizeof(struct lpfc_sli4_cfg_mhdr));
15735 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15736 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15737 length, LPFC_SLI4_MBX_EMBED);
15738 rq_create = &mbox->u.mqe.un.rq_create;
15739 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15740 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15741 phba->sli4_hba.pc_sli4_params.rqv);
15742 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15743 bf_set(lpfc_rq_context_rqe_count_1,
15744 &rq_create->u.request.context,
15746 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
15747 bf_set(lpfc_rq_context_rqe_size,
15748 &rq_create->u.request.context,
15750 bf_set(lpfc_rq_context_page_size,
15751 &rq_create->u.request.context,
15752 LPFC_RQ_PAGE_SIZE_4096);
15754 switch (hrq->entry_count) {
15756 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15757 "2535 Unsupported RQ count. (%d)\n",
15759 if (hrq->entry_count < 512) {
15763 /* otherwise default to smallest count (drop through) */
15765 bf_set(lpfc_rq_context_rqe_count,
15766 &rq_create->u.request.context,
15767 LPFC_RQ_RING_SIZE_512);
15770 bf_set(lpfc_rq_context_rqe_count,
15771 &rq_create->u.request.context,
15772 LPFC_RQ_RING_SIZE_1024);
15775 bf_set(lpfc_rq_context_rqe_count,
15776 &rq_create->u.request.context,
15777 LPFC_RQ_RING_SIZE_2048);
15780 bf_set(lpfc_rq_context_rqe_count,
15781 &rq_create->u.request.context,
15782 LPFC_RQ_RING_SIZE_4096);
15785 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15786 LPFC_HDR_BUF_SIZE);
15788 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15790 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15792 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15793 memset(dmabuf->virt, 0, hw_page_size);
15794 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15795 putPaddrLow(dmabuf->phys);
15796 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15797 putPaddrHigh(dmabuf->phys);
15799 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15800 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15802 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15803 /* The IOCTL status is embedded in the mailbox subheader. */
15804 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15805 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15806 if (shdr_status || shdr_add_status || rc) {
15807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15808 "2504 RQ_CREATE mailbox failed with "
15809 "status x%x add_status x%x, mbx status x%x\n",
15810 shdr_status, shdr_add_status, rc);
15814 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15815 if (hrq->queue_id == 0xFFFF) {
15820 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15821 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15822 &rq_create->u.response);
15823 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15824 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15825 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15826 "3262 RQ [%d] doorbell format not "
15827 "supported: x%x\n", hrq->queue_id,
15833 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15834 &rq_create->u.response);
15835 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15836 if (!bar_memmap_p) {
15837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15838 "3269 RQ[%d] failed to memmap pci "
15839 "barset:x%x\n", hrq->queue_id,
15845 db_offset = rq_create->u.response.doorbell_offset;
15846 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15847 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15848 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15849 "3270 RQ[%d] doorbell offset not "
15850 "supported: x%x\n", hrq->queue_id,
15855 hrq->db_regaddr = bar_memmap_p + db_offset;
15856 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15857 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15858 "format:x%x\n", hrq->queue_id, pci_barset,
15859 db_offset, hrq->db_format);
15861 hrq->db_format = LPFC_DB_RING_FORMAT;
15862 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15864 hrq->type = LPFC_HRQ;
15865 hrq->assoc_qid = cq->queue_id;
15866 hrq->subtype = subtype;
15867 hrq->host_index = 0;
15868 hrq->hba_index = 0;
15869 hrq->entry_repost = LPFC_RQ_REPOST;
15871 /* now create the data queue */
15872 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15873 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15874 length, LPFC_SLI4_MBX_EMBED);
15875 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15876 phba->sli4_hba.pc_sli4_params.rqv);
15877 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15878 bf_set(lpfc_rq_context_rqe_count_1,
15879 &rq_create->u.request.context, hrq->entry_count);
15880 if (subtype == LPFC_NVMET)
15881 rq_create->u.request.context.buffer_size =
15882 LPFC_NVMET_DATA_BUF_SIZE;
15884 rq_create->u.request.context.buffer_size =
15885 LPFC_DATA_BUF_SIZE;
15886 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
15888 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
15889 (PAGE_SIZE/SLI4_PAGE_SIZE));
15891 switch (drq->entry_count) {
15893 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15894 "2536 Unsupported RQ count. (%d)\n",
15896 if (drq->entry_count < 512) {
15900 /* otherwise default to smallest count (drop through) */
15902 bf_set(lpfc_rq_context_rqe_count,
15903 &rq_create->u.request.context,
15904 LPFC_RQ_RING_SIZE_512);
15907 bf_set(lpfc_rq_context_rqe_count,
15908 &rq_create->u.request.context,
15909 LPFC_RQ_RING_SIZE_1024);
15912 bf_set(lpfc_rq_context_rqe_count,
15913 &rq_create->u.request.context,
15914 LPFC_RQ_RING_SIZE_2048);
15917 bf_set(lpfc_rq_context_rqe_count,
15918 &rq_create->u.request.context,
15919 LPFC_RQ_RING_SIZE_4096);
15922 if (subtype == LPFC_NVMET)
15923 bf_set(lpfc_rq_context_buf_size,
15924 &rq_create->u.request.context,
15925 LPFC_NVMET_DATA_BUF_SIZE);
15927 bf_set(lpfc_rq_context_buf_size,
15928 &rq_create->u.request.context,
15929 LPFC_DATA_BUF_SIZE);
15931 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15933 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15935 list_for_each_entry(dmabuf, &drq->page_list, list) {
15936 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15937 putPaddrLow(dmabuf->phys);
15938 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15939 putPaddrHigh(dmabuf->phys);
15941 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15942 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15943 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15944 /* The IOCTL status is embedded in the mailbox subheader. */
15945 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15946 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15947 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15948 if (shdr_status || shdr_add_status || rc) {
15952 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15953 if (drq->queue_id == 0xFFFF) {
15957 drq->type = LPFC_DRQ;
15958 drq->assoc_qid = cq->queue_id;
15959 drq->subtype = subtype;
15960 drq->host_index = 0;
15961 drq->hba_index = 0;
15962 drq->entry_repost = LPFC_RQ_REPOST;
15964 /* link the header and data RQs onto the parent cq child list */
15965 list_add_tail(&hrq->list, &cq->child_list);
15966 list_add_tail(&drq->list, &cq->child_list);
15969 mempool_free(mbox, phba->mbox_mem_pool);
15974 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
15975 * @phba: HBA structure that indicates port to create a queue on.
15976 * @hrqp: The queue structure array to use to create the header receive queues.
15977 * @drqp: The queue structure array to use to create the data receive queues.
15978 * @cqp: The completion queue array to bind these receive queues to.
15980 * This function creates a receive buffer queue pair , as detailed in @hrq and
15981 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15984 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15985 * struct is used to get the entry count that is necessary to determine the
15986 * number of pages to use for this queue. The @cq is used to indicate which
15987 * completion queue to bind received buffers that are posted to these queues to.
15988 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15989 * receive queue pair. This function is asynchronous and will wait for the
15990 * mailbox command to finish before continuing.
15992 * On success this function will return a zero. If unable to allocate enough
15993 * memory this function will return -ENOMEM. If the queue create mailbox command
15994 * fails this function will return -ENXIO.
15997 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
15998 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
16001 struct lpfc_queue *hrq, *drq, *cq;
16002 struct lpfc_mbx_rq_create_v2 *rq_create;
16003 struct lpfc_dmabuf *dmabuf;
16004 LPFC_MBOXQ_t *mbox;
16005 int rc, length, alloclen, status = 0;
16006 int cnt, idx, numrq, page_idx = 0;
16007 uint32_t shdr_status, shdr_add_status;
16008 union lpfc_sli4_cfg_shdr *shdr;
16009 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16011 numrq = phba->cfg_nvmet_mrq;
16012 /* sanity check on array memory */
16013 if (!hrqp || !drqp || !cqp || !numrq)
16015 if (!phba->sli4_hba.pc_sli4_params.supported)
16016 hw_page_size = SLI4_PAGE_SIZE;
16018 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16022 length = sizeof(struct lpfc_mbx_rq_create_v2);
16023 length += ((2 * numrq * hrqp[0]->page_count) *
16024 sizeof(struct dma_address));
16026 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16027 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
16028 LPFC_SLI4_MBX_NEMBED);
16029 if (alloclen < length) {
16030 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16031 "3099 Allocated DMA memory size (%d) is "
16032 "less than the requested DMA memory size "
16033 "(%d)\n", alloclen, length);
16040 rq_create = mbox->sge_array->addr[0];
16041 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
16043 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
16046 for (idx = 0; idx < numrq; idx++) {
16051 /* sanity check on queue memory */
16052 if (!hrq || !drq || !cq) {
16057 if (hrq->entry_count != drq->entry_count) {
16063 bf_set(lpfc_mbx_rq_create_num_pages,
16064 &rq_create->u.request,
16066 bf_set(lpfc_mbx_rq_create_rq_cnt,
16067 &rq_create->u.request, (numrq * 2));
16068 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
16070 bf_set(lpfc_rq_context_base_cq,
16071 &rq_create->u.request.context,
16073 bf_set(lpfc_rq_context_data_size,
16074 &rq_create->u.request.context,
16075 LPFC_NVMET_DATA_BUF_SIZE);
16076 bf_set(lpfc_rq_context_hdr_size,
16077 &rq_create->u.request.context,
16078 LPFC_HDR_BUF_SIZE);
16079 bf_set(lpfc_rq_context_rqe_count_1,
16080 &rq_create->u.request.context,
16082 bf_set(lpfc_rq_context_rqe_size,
16083 &rq_create->u.request.context,
16085 bf_set(lpfc_rq_context_page_size,
16086 &rq_create->u.request.context,
16087 (PAGE_SIZE/SLI4_PAGE_SIZE));
16090 list_for_each_entry(dmabuf, &hrq->page_list, list) {
16091 memset(dmabuf->virt, 0, hw_page_size);
16092 cnt = page_idx + dmabuf->buffer_tag;
16093 rq_create->u.request.page[cnt].addr_lo =
16094 putPaddrLow(dmabuf->phys);
16095 rq_create->u.request.page[cnt].addr_hi =
16096 putPaddrHigh(dmabuf->phys);
16102 list_for_each_entry(dmabuf, &drq->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);
16113 hrq->db_format = LPFC_DB_RING_FORMAT;
16114 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16115 hrq->type = LPFC_HRQ;
16116 hrq->assoc_qid = cq->queue_id;
16117 hrq->subtype = subtype;
16118 hrq->host_index = 0;
16119 hrq->hba_index = 0;
16120 hrq->entry_repost = LPFC_RQ_REPOST;
16122 drq->db_format = LPFC_DB_RING_FORMAT;
16123 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16124 drq->type = LPFC_DRQ;
16125 drq->assoc_qid = cq->queue_id;
16126 drq->subtype = subtype;
16127 drq->host_index = 0;
16128 drq->hba_index = 0;
16129 drq->entry_repost = LPFC_RQ_REPOST;
16131 list_add_tail(&hrq->list, &cq->child_list);
16132 list_add_tail(&drq->list, &cq->child_list);
16135 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16136 /* The IOCTL status is embedded in the mailbox subheader. */
16137 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16138 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16139 if (shdr_status || shdr_add_status || rc) {
16140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16141 "3120 RQ_CREATE mailbox failed with "
16142 "status x%x add_status x%x, mbx status x%x\n",
16143 shdr_status, shdr_add_status, rc);
16147 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16148 if (rc == 0xFFFF) {
16153 /* Initialize all RQs with associated queue id */
16154 for (idx = 0; idx < numrq; idx++) {
16156 hrq->queue_id = rc + (2 * idx);
16158 drq->queue_id = rc + (2 * idx) + 1;
16162 lpfc_sli4_mbox_cmd_free(phba, mbox);
16167 * lpfc_eq_destroy - Destroy an event Queue on the HBA
16168 * @eq: The queue structure associated with the queue to destroy.
16170 * This function destroys a queue, as detailed in @eq by sending an mailbox
16171 * command, specific to the type of queue, to the HBA.
16173 * The @eq struct is used to get the queue ID of the queue to destroy.
16175 * On success this function will return a zero. If the queue destroy mailbox
16176 * command fails this function will return -ENXIO.
16179 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
16181 LPFC_MBOXQ_t *mbox;
16182 int rc, length, status = 0;
16183 uint32_t shdr_status, shdr_add_status;
16184 union lpfc_sli4_cfg_shdr *shdr;
16186 /* sanity check on queue memory */
16189 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
16192 length = (sizeof(struct lpfc_mbx_eq_destroy) -
16193 sizeof(struct lpfc_sli4_cfg_mhdr));
16194 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16195 LPFC_MBOX_OPCODE_EQ_DESTROY,
16196 length, LPFC_SLI4_MBX_EMBED);
16197 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
16199 mbox->vport = eq->phba->pport;
16200 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16202 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
16203 /* The IOCTL status is embedded in the mailbox subheader. */
16204 shdr = (union lpfc_sli4_cfg_shdr *)
16205 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
16206 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16207 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16208 if (shdr_status || shdr_add_status || rc) {
16209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16210 "2505 EQ_DESTROY mailbox failed with "
16211 "status x%x add_status x%x, mbx status x%x\n",
16212 shdr_status, shdr_add_status, rc);
16216 /* Remove eq from any list */
16217 list_del_init(&eq->list);
16218 mempool_free(mbox, eq->phba->mbox_mem_pool);
16223 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
16224 * @cq: The queue structure associated with the queue to destroy.
16226 * This function destroys a queue, as detailed in @cq by sending an mailbox
16227 * command, specific to the type of queue, to the HBA.
16229 * The @cq struct is used to get the queue ID of the queue to destroy.
16231 * On success this function will return a zero. If the queue destroy mailbox
16232 * command fails this function will return -ENXIO.
16235 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
16237 LPFC_MBOXQ_t *mbox;
16238 int rc, length, status = 0;
16239 uint32_t shdr_status, shdr_add_status;
16240 union lpfc_sli4_cfg_shdr *shdr;
16242 /* sanity check on queue memory */
16245 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
16248 length = (sizeof(struct lpfc_mbx_cq_destroy) -
16249 sizeof(struct lpfc_sli4_cfg_mhdr));
16250 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16251 LPFC_MBOX_OPCODE_CQ_DESTROY,
16252 length, LPFC_SLI4_MBX_EMBED);
16253 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
16255 mbox->vport = cq->phba->pport;
16256 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16257 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
16258 /* The IOCTL status is embedded in the mailbox subheader. */
16259 shdr = (union lpfc_sli4_cfg_shdr *)
16260 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
16261 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16262 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16263 if (shdr_status || shdr_add_status || rc) {
16264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16265 "2506 CQ_DESTROY mailbox failed with "
16266 "status x%x add_status x%x, mbx status x%x\n",
16267 shdr_status, shdr_add_status, rc);
16270 /* Remove cq from any list */
16271 list_del_init(&cq->list);
16272 mempool_free(mbox, cq->phba->mbox_mem_pool);
16277 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
16278 * @qm: The queue structure associated with the queue to destroy.
16280 * This function destroys a queue, as detailed in @mq by sending an mailbox
16281 * command, specific to the type of queue, to the HBA.
16283 * The @mq struct is used to get the queue ID of the queue to destroy.
16285 * On success this function will return a zero. If the queue destroy mailbox
16286 * command fails this function will return -ENXIO.
16289 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
16291 LPFC_MBOXQ_t *mbox;
16292 int rc, length, status = 0;
16293 uint32_t shdr_status, shdr_add_status;
16294 union lpfc_sli4_cfg_shdr *shdr;
16296 /* sanity check on queue memory */
16299 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
16302 length = (sizeof(struct lpfc_mbx_mq_destroy) -
16303 sizeof(struct lpfc_sli4_cfg_mhdr));
16304 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16305 LPFC_MBOX_OPCODE_MQ_DESTROY,
16306 length, LPFC_SLI4_MBX_EMBED);
16307 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
16309 mbox->vport = mq->phba->pport;
16310 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16311 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
16312 /* The IOCTL status is embedded in the mailbox subheader. */
16313 shdr = (union lpfc_sli4_cfg_shdr *)
16314 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
16315 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16316 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16317 if (shdr_status || shdr_add_status || rc) {
16318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16319 "2507 MQ_DESTROY mailbox failed with "
16320 "status x%x add_status x%x, mbx status x%x\n",
16321 shdr_status, shdr_add_status, rc);
16324 /* Remove mq from any list */
16325 list_del_init(&mq->list);
16326 mempool_free(mbox, mq->phba->mbox_mem_pool);
16331 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
16332 * @wq: The queue structure associated with the queue to destroy.
16334 * This function destroys a queue, as detailed in @wq by sending an mailbox
16335 * command, specific to the type of queue, to the HBA.
16337 * The @wq struct is used to get the queue ID of the queue to destroy.
16339 * On success this function will return a zero. If the queue destroy mailbox
16340 * command fails this function will return -ENXIO.
16343 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
16345 LPFC_MBOXQ_t *mbox;
16346 int rc, length, status = 0;
16347 uint32_t shdr_status, shdr_add_status;
16348 union lpfc_sli4_cfg_shdr *shdr;
16350 /* sanity check on queue memory */
16353 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
16356 length = (sizeof(struct lpfc_mbx_wq_destroy) -
16357 sizeof(struct lpfc_sli4_cfg_mhdr));
16358 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16359 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
16360 length, LPFC_SLI4_MBX_EMBED);
16361 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
16363 mbox->vport = wq->phba->pport;
16364 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16365 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
16366 shdr = (union lpfc_sli4_cfg_shdr *)
16367 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
16368 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16369 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16370 if (shdr_status || shdr_add_status || rc) {
16371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16372 "2508 WQ_DESTROY mailbox failed with "
16373 "status x%x add_status x%x, mbx status x%x\n",
16374 shdr_status, shdr_add_status, rc);
16377 /* Remove wq from any list */
16378 list_del_init(&wq->list);
16381 mempool_free(mbox, wq->phba->mbox_mem_pool);
16386 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
16387 * @rq: The queue structure associated with the queue to destroy.
16389 * This function destroys a queue, as detailed in @rq by sending an mailbox
16390 * command, specific to the type of queue, to the HBA.
16392 * The @rq struct is used to get the queue ID of the queue to destroy.
16394 * On success this function will return a zero. If the queue destroy mailbox
16395 * command fails this function will return -ENXIO.
16398 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
16399 struct lpfc_queue *drq)
16401 LPFC_MBOXQ_t *mbox;
16402 int rc, length, status = 0;
16403 uint32_t shdr_status, shdr_add_status;
16404 union lpfc_sli4_cfg_shdr *shdr;
16406 /* sanity check on queue memory */
16409 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
16412 length = (sizeof(struct lpfc_mbx_rq_destroy) -
16413 sizeof(struct lpfc_sli4_cfg_mhdr));
16414 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16415 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
16416 length, LPFC_SLI4_MBX_EMBED);
16417 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16419 mbox->vport = hrq->phba->pport;
16420 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16421 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
16422 /* The IOCTL status is embedded in the mailbox subheader. */
16423 shdr = (union lpfc_sli4_cfg_shdr *)
16424 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16425 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16426 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16427 if (shdr_status || shdr_add_status || rc) {
16428 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16429 "2509 RQ_DESTROY mailbox failed with "
16430 "status x%x add_status x%x, mbx status x%x\n",
16431 shdr_status, shdr_add_status, rc);
16432 if (rc != MBX_TIMEOUT)
16433 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16436 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16438 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
16439 shdr = (union lpfc_sli4_cfg_shdr *)
16440 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16441 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16442 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16443 if (shdr_status || shdr_add_status || rc) {
16444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16445 "2510 RQ_DESTROY mailbox failed with "
16446 "status x%x add_status x%x, mbx status x%x\n",
16447 shdr_status, shdr_add_status, rc);
16450 list_del_init(&hrq->list);
16451 list_del_init(&drq->list);
16452 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16457 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
16458 * @phba: The virtual port for which this call being executed.
16459 * @pdma_phys_addr0: Physical address of the 1st SGL page.
16460 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
16461 * @xritag: the xritag that ties this io to the SGL pages.
16463 * This routine will post the sgl pages for the IO that has the xritag
16464 * that is in the iocbq structure. The xritag is assigned during iocbq
16465 * creation and persists for as long as the driver is loaded.
16466 * if the caller has fewer than 256 scatter gather segments to map then
16467 * pdma_phys_addr1 should be 0.
16468 * If the caller needs to map more than 256 scatter gather segment then
16469 * pdma_phys_addr1 should be a valid physical address.
16470 * physical address for SGLs must be 64 byte aligned.
16471 * If you are going to map 2 SGL's then the first one must have 256 entries
16472 * the second sgl can have between 1 and 256 entries.
16476 * -ENXIO, -ENOMEM - Failure
16479 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
16480 dma_addr_t pdma_phys_addr0,
16481 dma_addr_t pdma_phys_addr1,
16484 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
16485 LPFC_MBOXQ_t *mbox;
16487 uint32_t shdr_status, shdr_add_status;
16489 union lpfc_sli4_cfg_shdr *shdr;
16491 if (xritag == NO_XRI) {
16492 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16493 "0364 Invalid param:\n");
16497 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16501 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16502 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16503 sizeof(struct lpfc_mbx_post_sgl_pages) -
16504 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16506 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
16507 &mbox->u.mqe.un.post_sgl_pages;
16508 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
16509 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
16511 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
16512 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
16513 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
16514 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
16516 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
16517 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
16518 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
16519 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
16520 if (!phba->sli4_hba.intr_enable)
16521 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16523 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16524 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16526 /* The IOCTL status is embedded in the mailbox subheader. */
16527 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
16528 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16529 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16530 if (rc != MBX_TIMEOUT)
16531 mempool_free(mbox, phba->mbox_mem_pool);
16532 if (shdr_status || shdr_add_status || rc) {
16533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16534 "2511 POST_SGL mailbox failed with "
16535 "status x%x add_status x%x, mbx status x%x\n",
16536 shdr_status, shdr_add_status, rc);
16542 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
16543 * @phba: pointer to lpfc hba data structure.
16545 * This routine is invoked to post rpi header templates to the
16546 * HBA consistent with the SLI-4 interface spec. This routine
16547 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
16548 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
16551 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
16552 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
16555 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
16560 * Fetch the next logical xri. Because this index is logical,
16561 * the driver starts at 0 each time.
16563 spin_lock_irq(&phba->hbalock);
16564 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
16565 phba->sli4_hba.max_cfg_param.max_xri, 0);
16566 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
16567 spin_unlock_irq(&phba->hbalock);
16570 set_bit(xri, phba->sli4_hba.xri_bmask);
16571 phba->sli4_hba.max_cfg_param.xri_used++;
16573 spin_unlock_irq(&phba->hbalock);
16578 * lpfc_sli4_free_xri - Release an xri for reuse.
16579 * @phba: pointer to lpfc hba data structure.
16581 * This routine is invoked to release an xri to the pool of
16582 * available rpis maintained by the driver.
16585 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16587 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
16588 phba->sli4_hba.max_cfg_param.xri_used--;
16593 * lpfc_sli4_free_xri - Release an xri for reuse.
16594 * @phba: pointer to lpfc hba data structure.
16596 * This routine is invoked to release an xri to the pool of
16597 * available rpis maintained by the driver.
16600 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16602 spin_lock_irq(&phba->hbalock);
16603 __lpfc_sli4_free_xri(phba, xri);
16604 spin_unlock_irq(&phba->hbalock);
16608 * lpfc_sli4_next_xritag - Get an xritag for the io
16609 * @phba: Pointer to HBA context object.
16611 * This function gets an xritag for the iocb. If there is no unused xritag
16612 * it will return 0xffff.
16613 * The function returns the allocated xritag if successful, else returns zero.
16614 * Zero is not a valid xritag.
16615 * The caller is not required to hold any lock.
16618 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
16620 uint16_t xri_index;
16622 xri_index = lpfc_sli4_alloc_xri(phba);
16623 if (xri_index == NO_XRI)
16624 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
16625 "2004 Failed to allocate XRI.last XRITAG is %d"
16626 " Max XRI is %d, Used XRI is %d\n",
16628 phba->sli4_hba.max_cfg_param.max_xri,
16629 phba->sli4_hba.max_cfg_param.xri_used);
16634 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
16635 * @phba: pointer to lpfc hba data structure.
16636 * @post_sgl_list: pointer to els sgl entry list.
16637 * @count: number of els sgl entries on the list.
16639 * This routine is invoked to post a block of driver's sgl pages to the
16640 * HBA using non-embedded mailbox command. No Lock is held. This routine
16641 * is only called when the driver is loading and after all IO has been
16645 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
16646 struct list_head *post_sgl_list,
16649 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
16650 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16651 struct sgl_page_pairs *sgl_pg_pairs;
16653 LPFC_MBOXQ_t *mbox;
16654 uint32_t reqlen, alloclen, pg_pairs;
16656 uint16_t xritag_start = 0;
16658 uint32_t shdr_status, shdr_add_status;
16659 union lpfc_sli4_cfg_shdr *shdr;
16661 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
16662 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16663 if (reqlen > SLI4_PAGE_SIZE) {
16664 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16665 "2559 Block sgl registration required DMA "
16666 "size (%d) great than a page\n", reqlen);
16670 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16674 /* Allocate DMA memory and set up the non-embedded mailbox command */
16675 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16676 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16677 LPFC_SLI4_MBX_NEMBED);
16679 if (alloclen < reqlen) {
16680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16681 "0285 Allocated DMA memory size (%d) is "
16682 "less than the requested DMA memory "
16683 "size (%d)\n", alloclen, reqlen);
16684 lpfc_sli4_mbox_cmd_free(phba, mbox);
16687 /* Set up the SGL pages in the non-embedded DMA pages */
16688 viraddr = mbox->sge_array->addr[0];
16689 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16690 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16693 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
16694 /* Set up the sge entry */
16695 sgl_pg_pairs->sgl_pg0_addr_lo =
16696 cpu_to_le32(putPaddrLow(sglq_entry->phys));
16697 sgl_pg_pairs->sgl_pg0_addr_hi =
16698 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
16699 sgl_pg_pairs->sgl_pg1_addr_lo =
16700 cpu_to_le32(putPaddrLow(0));
16701 sgl_pg_pairs->sgl_pg1_addr_hi =
16702 cpu_to_le32(putPaddrHigh(0));
16704 /* Keep the first xritag on the list */
16706 xritag_start = sglq_entry->sli4_xritag;
16711 /* Complete initialization and perform endian conversion. */
16712 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16713 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
16714 sgl->word0 = cpu_to_le32(sgl->word0);
16716 if (!phba->sli4_hba.intr_enable)
16717 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16719 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16720 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16722 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16723 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16724 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16725 if (rc != MBX_TIMEOUT)
16726 lpfc_sli4_mbox_cmd_free(phba, mbox);
16727 if (shdr_status || shdr_add_status || rc) {
16728 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16729 "2513 POST_SGL_BLOCK mailbox command failed "
16730 "status x%x add_status x%x mbx status x%x\n",
16731 shdr_status, shdr_add_status, rc);
16738 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
16739 * @phba: pointer to lpfc hba data structure.
16740 * @sblist: pointer to scsi buffer list.
16741 * @count: number of scsi buffers on the list.
16743 * This routine is invoked to post a block of @count scsi sgl pages from a
16744 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
16749 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
16750 struct list_head *sblist,
16753 struct lpfc_scsi_buf *psb;
16754 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16755 struct sgl_page_pairs *sgl_pg_pairs;
16757 LPFC_MBOXQ_t *mbox;
16758 uint32_t reqlen, alloclen, pg_pairs;
16760 uint16_t xritag_start = 0;
16762 uint32_t shdr_status, shdr_add_status;
16763 dma_addr_t pdma_phys_bpl1;
16764 union lpfc_sli4_cfg_shdr *shdr;
16766 /* Calculate the requested length of the dma memory */
16767 reqlen = count * sizeof(struct sgl_page_pairs) +
16768 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16769 if (reqlen > SLI4_PAGE_SIZE) {
16770 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
16771 "0217 Block sgl registration required DMA "
16772 "size (%d) great than a page\n", reqlen);
16775 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16778 "0283 Failed to allocate mbox cmd memory\n");
16782 /* Allocate DMA memory and set up the non-embedded mailbox command */
16783 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16784 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16785 LPFC_SLI4_MBX_NEMBED);
16787 if (alloclen < reqlen) {
16788 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16789 "2561 Allocated DMA memory size (%d) is "
16790 "less than the requested DMA memory "
16791 "size (%d)\n", alloclen, reqlen);
16792 lpfc_sli4_mbox_cmd_free(phba, mbox);
16796 /* Get the first SGE entry from the non-embedded DMA memory */
16797 viraddr = mbox->sge_array->addr[0];
16799 /* Set up the SGL pages in the non-embedded DMA pages */
16800 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16801 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16804 list_for_each_entry(psb, sblist, list) {
16805 /* Set up the sge entry */
16806 sgl_pg_pairs->sgl_pg0_addr_lo =
16807 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
16808 sgl_pg_pairs->sgl_pg0_addr_hi =
16809 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
16810 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
16811 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
16813 pdma_phys_bpl1 = 0;
16814 sgl_pg_pairs->sgl_pg1_addr_lo =
16815 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
16816 sgl_pg_pairs->sgl_pg1_addr_hi =
16817 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16818 /* Keep the first xritag on the list */
16820 xritag_start = psb->cur_iocbq.sli4_xritag;
16824 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16825 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16826 /* Perform endian conversion if necessary */
16827 sgl->word0 = cpu_to_le32(sgl->word0);
16829 if (!phba->sli4_hba.intr_enable)
16830 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16832 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16833 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16835 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16836 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16837 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16838 if (rc != MBX_TIMEOUT)
16839 lpfc_sli4_mbox_cmd_free(phba, mbox);
16840 if (shdr_status || shdr_add_status || rc) {
16841 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16842 "2564 POST_SGL_BLOCK mailbox command failed "
16843 "status x%x add_status x%x mbx status x%x\n",
16844 shdr_status, shdr_add_status, rc);
16851 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
16852 * @phba: pointer to lpfc_hba struct that the frame was received on
16853 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16855 * This function checks the fields in the @fc_hdr to see if the FC frame is a
16856 * valid type of frame that the LPFC driver will handle. This function will
16857 * return a zero if the frame is a valid frame or a non zero value when the
16858 * frame does not pass the check.
16861 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
16863 /* make rctl_names static to save stack space */
16864 struct fc_vft_header *fc_vft_hdr;
16865 uint32_t *header = (uint32_t *) fc_hdr;
16867 #define FC_RCTL_MDS_DIAGS 0xF4
16869 switch (fc_hdr->fh_r_ctl) {
16870 case FC_RCTL_DD_UNCAT: /* uncategorized information */
16871 case FC_RCTL_DD_SOL_DATA: /* solicited data */
16872 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
16873 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
16874 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
16875 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
16876 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
16877 case FC_RCTL_DD_CMD_STATUS: /* command status */
16878 case FC_RCTL_ELS_REQ: /* extended link services request */
16879 case FC_RCTL_ELS_REP: /* extended link services reply */
16880 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
16881 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
16882 case FC_RCTL_BA_NOP: /* basic link service NOP */
16883 case FC_RCTL_BA_ABTS: /* basic link service abort */
16884 case FC_RCTL_BA_RMC: /* remove connection */
16885 case FC_RCTL_BA_ACC: /* basic accept */
16886 case FC_RCTL_BA_RJT: /* basic reject */
16887 case FC_RCTL_BA_PRMT:
16888 case FC_RCTL_ACK_1: /* acknowledge_1 */
16889 case FC_RCTL_ACK_0: /* acknowledge_0 */
16890 case FC_RCTL_P_RJT: /* port reject */
16891 case FC_RCTL_F_RJT: /* fabric reject */
16892 case FC_RCTL_P_BSY: /* port busy */
16893 case FC_RCTL_F_BSY: /* fabric busy to data frame */
16894 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
16895 case FC_RCTL_LCR: /* link credit reset */
16896 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
16897 case FC_RCTL_END: /* end */
16899 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
16900 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16901 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
16902 return lpfc_fc_frame_check(phba, fc_hdr);
16907 #define FC_TYPE_VENDOR_UNIQUE 0xFF
16909 switch (fc_hdr->fh_type) {
16915 case FC_TYPE_VENDOR_UNIQUE:
16923 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
16924 "2538 Received frame rctl:x%x, type:x%x, "
16925 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
16926 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
16927 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
16928 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
16929 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
16930 be32_to_cpu(header[6]));
16933 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
16934 "2539 Dropped frame rctl:x%x type:x%x\n",
16935 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
16940 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
16941 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16943 * This function processes the FC header to retrieve the VFI from the VF
16944 * header, if one exists. This function will return the VFI if one exists
16945 * or 0 if no VSAN Header exists.
16948 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
16950 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16952 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
16954 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
16958 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
16959 * @phba: Pointer to the HBA structure to search for the vport on
16960 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16961 * @fcfi: The FC Fabric ID that the frame came from
16963 * This function searches the @phba for a vport that matches the content of the
16964 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
16965 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
16966 * returns the matching vport pointer or NULL if unable to match frame to a
16969 static struct lpfc_vport *
16970 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
16971 uint16_t fcfi, uint32_t did)
16973 struct lpfc_vport **vports;
16974 struct lpfc_vport *vport = NULL;
16977 if (did == Fabric_DID)
16978 return phba->pport;
16979 if ((phba->pport->fc_flag & FC_PT2PT) &&
16980 !(phba->link_state == LPFC_HBA_READY))
16981 return phba->pport;
16983 vports = lpfc_create_vport_work_array(phba);
16984 if (vports != NULL) {
16985 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
16986 if (phba->fcf.fcfi == fcfi &&
16987 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
16988 vports[i]->fc_myDID == did) {
16994 lpfc_destroy_vport_work_array(phba, vports);
16999 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
17000 * @vport: The vport to work on.
17002 * This function updates the receive sequence time stamp for this vport. The
17003 * receive sequence time stamp indicates the time that the last frame of the
17004 * the sequence that has been idle for the longest amount of time was received.
17005 * the driver uses this time stamp to indicate if any received sequences have
17009 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
17011 struct lpfc_dmabuf *h_buf;
17012 struct hbq_dmabuf *dmabuf = NULL;
17014 /* get the oldest sequence on the rcv list */
17015 h_buf = list_get_first(&vport->rcv_buffer_list,
17016 struct lpfc_dmabuf, list);
17019 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17020 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
17024 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
17025 * @vport: The vport that the received sequences were sent to.
17027 * This function cleans up all outstanding received sequences. This is called
17028 * by the driver when a link event or user action invalidates all the received
17032 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
17034 struct lpfc_dmabuf *h_buf, *hnext;
17035 struct lpfc_dmabuf *d_buf, *dnext;
17036 struct hbq_dmabuf *dmabuf = NULL;
17038 /* start with the oldest sequence on the rcv list */
17039 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17040 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17041 list_del_init(&dmabuf->hbuf.list);
17042 list_for_each_entry_safe(d_buf, dnext,
17043 &dmabuf->dbuf.list, list) {
17044 list_del_init(&d_buf->list);
17045 lpfc_in_buf_free(vport->phba, d_buf);
17047 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17052 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
17053 * @vport: The vport that the received sequences were sent to.
17055 * This function determines whether any received sequences have timed out by
17056 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
17057 * indicates that there is at least one timed out sequence this routine will
17058 * go through the received sequences one at a time from most inactive to most
17059 * active to determine which ones need to be cleaned up. Once it has determined
17060 * that a sequence needs to be cleaned up it will simply free up the resources
17061 * without sending an abort.
17064 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
17066 struct lpfc_dmabuf *h_buf, *hnext;
17067 struct lpfc_dmabuf *d_buf, *dnext;
17068 struct hbq_dmabuf *dmabuf = NULL;
17069 unsigned long timeout;
17070 int abort_count = 0;
17072 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17073 vport->rcv_buffer_time_stamp);
17074 if (list_empty(&vport->rcv_buffer_list) ||
17075 time_before(jiffies, timeout))
17077 /* start with the oldest sequence on the rcv list */
17078 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17079 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17080 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17081 dmabuf->time_stamp);
17082 if (time_before(jiffies, timeout))
17085 list_del_init(&dmabuf->hbuf.list);
17086 list_for_each_entry_safe(d_buf, dnext,
17087 &dmabuf->dbuf.list, list) {
17088 list_del_init(&d_buf->list);
17089 lpfc_in_buf_free(vport->phba, d_buf);
17091 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17094 lpfc_update_rcv_time_stamp(vport);
17098 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
17099 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
17101 * This function searches through the existing incomplete sequences that have
17102 * been sent to this @vport. If the frame matches one of the incomplete
17103 * sequences then the dbuf in the @dmabuf is added to the list of frames that
17104 * make up that sequence. If no sequence is found that matches this frame then
17105 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
17106 * This function returns a pointer to the first dmabuf in the sequence list that
17107 * the frame was linked to.
17109 static struct hbq_dmabuf *
17110 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17112 struct fc_frame_header *new_hdr;
17113 struct fc_frame_header *temp_hdr;
17114 struct lpfc_dmabuf *d_buf;
17115 struct lpfc_dmabuf *h_buf;
17116 struct hbq_dmabuf *seq_dmabuf = NULL;
17117 struct hbq_dmabuf *temp_dmabuf = NULL;
17120 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17121 dmabuf->time_stamp = jiffies;
17122 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17124 /* Use the hdr_buf to find the sequence that this frame belongs to */
17125 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17126 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17127 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17128 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17129 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17131 /* found a pending sequence that matches this frame */
17132 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17137 * This indicates first frame received for this sequence.
17138 * Queue the buffer on the vport's rcv_buffer_list.
17140 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17141 lpfc_update_rcv_time_stamp(vport);
17144 temp_hdr = seq_dmabuf->hbuf.virt;
17145 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
17146 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17147 list_del_init(&seq_dmabuf->hbuf.list);
17148 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17149 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17150 lpfc_update_rcv_time_stamp(vport);
17153 /* move this sequence to the tail to indicate a young sequence */
17154 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
17155 seq_dmabuf->time_stamp = jiffies;
17156 lpfc_update_rcv_time_stamp(vport);
17157 if (list_empty(&seq_dmabuf->dbuf.list)) {
17158 temp_hdr = dmabuf->hbuf.virt;
17159 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17162 /* find the correct place in the sequence to insert this frame */
17163 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
17165 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17166 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
17168 * If the frame's sequence count is greater than the frame on
17169 * the list then insert the frame right after this frame
17171 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
17172 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17173 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
17178 if (&d_buf->list == &seq_dmabuf->dbuf.list)
17180 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
17189 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
17190 * @vport: pointer to a vitural port
17191 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17193 * This function tries to abort from the partially assembed sequence, described
17194 * by the information from basic abbort @dmabuf. It checks to see whether such
17195 * partially assembled sequence held by the driver. If so, it shall free up all
17196 * the frames from the partially assembled sequence.
17199 * true -- if there is matching partially assembled sequence present and all
17200 * the frames freed with the sequence;
17201 * false -- if there is no matching partially assembled sequence present so
17202 * nothing got aborted in the lower layer driver
17205 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
17206 struct hbq_dmabuf *dmabuf)
17208 struct fc_frame_header *new_hdr;
17209 struct fc_frame_header *temp_hdr;
17210 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
17211 struct hbq_dmabuf *seq_dmabuf = NULL;
17213 /* Use the hdr_buf to find the sequence that matches this frame */
17214 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17215 INIT_LIST_HEAD(&dmabuf->hbuf.list);
17216 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17217 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17218 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17219 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17220 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17221 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17223 /* found a pending sequence that matches this frame */
17224 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17228 /* Free up all the frames from the partially assembled sequence */
17230 list_for_each_entry_safe(d_buf, n_buf,
17231 &seq_dmabuf->dbuf.list, list) {
17232 list_del_init(&d_buf->list);
17233 lpfc_in_buf_free(vport->phba, d_buf);
17241 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
17242 * @vport: pointer to a vitural port
17243 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17245 * This function tries to abort from the assembed sequence from upper level
17246 * protocol, described by the information from basic abbort @dmabuf. It
17247 * checks to see whether such pending context exists at upper level protocol.
17248 * If so, it shall clean up the pending context.
17251 * true -- if there is matching pending context of the sequence cleaned
17253 * false -- if there is no matching pending context of the sequence present
17257 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17259 struct lpfc_hba *phba = vport->phba;
17262 /* Accepting abort at ulp with SLI4 only */
17263 if (phba->sli_rev < LPFC_SLI_REV4)
17266 /* Register all caring upper level protocols to attend abort */
17267 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
17275 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
17276 * @phba: Pointer to HBA context object.
17277 * @cmd_iocbq: pointer to the command iocbq structure.
17278 * @rsp_iocbq: pointer to the response iocbq structure.
17280 * This function handles the sequence abort response iocb command complete
17281 * event. It properly releases the memory allocated to the sequence abort
17285 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
17286 struct lpfc_iocbq *cmd_iocbq,
17287 struct lpfc_iocbq *rsp_iocbq)
17289 struct lpfc_nodelist *ndlp;
17292 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
17293 lpfc_nlp_put(ndlp);
17294 lpfc_nlp_not_used(ndlp);
17295 lpfc_sli_release_iocbq(phba, cmd_iocbq);
17298 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
17299 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
17300 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17301 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
17302 rsp_iocbq->iocb.ulpStatus,
17303 rsp_iocbq->iocb.un.ulpWord[4]);
17307 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
17308 * @phba: Pointer to HBA context object.
17309 * @xri: xri id in transaction.
17311 * This function validates the xri maps to the known range of XRIs allocated an
17312 * used by the driver.
17315 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
17320 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
17321 if (xri == phba->sli4_hba.xri_ids[i])
17328 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
17329 * @phba: Pointer to HBA context object.
17330 * @fc_hdr: pointer to a FC frame header.
17332 * This function sends a basic response to a previous unsol sequence abort
17333 * event after aborting the sequence handling.
17336 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
17337 struct fc_frame_header *fc_hdr, bool aborted)
17339 struct lpfc_hba *phba = vport->phba;
17340 struct lpfc_iocbq *ctiocb = NULL;
17341 struct lpfc_nodelist *ndlp;
17342 uint16_t oxid, rxid, xri, lxri;
17343 uint32_t sid, fctl;
17347 if (!lpfc_is_link_up(phba))
17350 sid = sli4_sid_from_fc_hdr(fc_hdr);
17351 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
17352 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
17354 ndlp = lpfc_findnode_did(vport, sid);
17356 ndlp = lpfc_nlp_init(vport, sid);
17358 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17359 "1268 Failed to allocate ndlp for "
17360 "oxid:x%x SID:x%x\n", oxid, sid);
17363 /* Put ndlp onto pport node list */
17364 lpfc_enqueue_node(vport, ndlp);
17365 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
17366 /* re-setup ndlp without removing from node list */
17367 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
17369 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17370 "3275 Failed to active ndlp found "
17371 "for oxid:x%x SID:x%x\n", oxid, sid);
17376 /* Allocate buffer for rsp iocb */
17377 ctiocb = lpfc_sli_get_iocbq(phba);
17381 /* Extract the F_CTL field from FC_HDR */
17382 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
17384 icmd = &ctiocb->iocb;
17385 icmd->un.xseq64.bdl.bdeSize = 0;
17386 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
17387 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
17388 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
17389 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
17391 /* Fill in the rest of iocb fields */
17392 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
17393 icmd->ulpBdeCount = 0;
17395 icmd->ulpClass = CLASS3;
17396 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
17397 ctiocb->context1 = lpfc_nlp_get(ndlp);
17399 ctiocb->iocb_cmpl = NULL;
17400 ctiocb->vport = phba->pport;
17401 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
17402 ctiocb->sli4_lxritag = NO_XRI;
17403 ctiocb->sli4_xritag = NO_XRI;
17405 if (fctl & FC_FC_EX_CTX)
17406 /* Exchange responder sent the abort so we
17412 lxri = lpfc_sli4_xri_inrange(phba, xri);
17413 if (lxri != NO_XRI)
17414 lpfc_set_rrq_active(phba, ndlp, lxri,
17415 (xri == oxid) ? rxid : oxid, 0);
17416 /* For BA_ABTS from exchange responder, if the logical xri with
17417 * the oxid maps to the FCP XRI range, the port no longer has
17418 * that exchange context, send a BLS_RJT. Override the IOCB for
17421 if ((fctl & FC_FC_EX_CTX) &&
17422 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
17423 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17424 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17425 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17426 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17429 /* If BA_ABTS failed to abort a partially assembled receive sequence,
17430 * the driver no longer has that exchange, send a BLS_RJT. Override
17431 * the IOCB for a BA_RJT.
17433 if (aborted == false) {
17434 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17435 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17436 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17437 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17440 if (fctl & FC_FC_EX_CTX) {
17441 /* ABTS sent by responder to CT exchange, construction
17442 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
17443 * field and RX_ID from ABTS for RX_ID field.
17445 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
17447 /* ABTS sent by initiator to CT exchange, construction
17448 * of BA_ACC will need to allocate a new XRI as for the
17451 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
17453 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
17454 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
17456 /* Xmit CT abts response on exchange <xid> */
17457 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
17458 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
17459 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
17461 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
17462 if (rc == IOCB_ERROR) {
17463 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
17464 "2925 Failed to issue CT ABTS RSP x%x on "
17465 "xri x%x, Data x%x\n",
17466 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
17468 lpfc_nlp_put(ndlp);
17469 ctiocb->context1 = NULL;
17470 lpfc_sli_release_iocbq(phba, ctiocb);
17475 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
17476 * @vport: Pointer to the vport on which this sequence was received
17477 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17479 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
17480 * receive sequence is only partially assembed by the driver, it shall abort
17481 * the partially assembled frames for the sequence. Otherwise, if the
17482 * unsolicited receive sequence has been completely assembled and passed to
17483 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
17484 * unsolicited sequence has been aborted. After that, it will issue a basic
17485 * accept to accept the abort.
17488 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
17489 struct hbq_dmabuf *dmabuf)
17491 struct lpfc_hba *phba = vport->phba;
17492 struct fc_frame_header fc_hdr;
17496 /* Make a copy of fc_hdr before the dmabuf being released */
17497 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
17498 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
17500 if (fctl & FC_FC_EX_CTX) {
17501 /* ABTS by responder to exchange, no cleanup needed */
17504 /* ABTS by initiator to exchange, need to do cleanup */
17505 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
17506 if (aborted == false)
17507 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
17509 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17511 if (phba->nvmet_support) {
17512 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
17516 /* Respond with BA_ACC or BA_RJT accordingly */
17517 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
17521 * lpfc_seq_complete - Indicates if a sequence is complete
17522 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17524 * This function checks the sequence, starting with the frame described by
17525 * @dmabuf, to see if all the frames associated with this sequence are present.
17526 * the frames associated with this sequence are linked to the @dmabuf using the
17527 * dbuf list. This function looks for two major things. 1) That the first frame
17528 * has a sequence count of zero. 2) There is a frame with last frame of sequence
17529 * set. 3) That there are no holes in the sequence count. The function will
17530 * return 1 when the sequence is complete, otherwise it will return 0.
17533 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
17535 struct fc_frame_header *hdr;
17536 struct lpfc_dmabuf *d_buf;
17537 struct hbq_dmabuf *seq_dmabuf;
17541 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17542 /* make sure first fame of sequence has a sequence count of zero */
17543 if (hdr->fh_seq_cnt != seq_count)
17545 fctl = (hdr->fh_f_ctl[0] << 16 |
17546 hdr->fh_f_ctl[1] << 8 |
17548 /* If last frame of sequence we can return success. */
17549 if (fctl & FC_FC_END_SEQ)
17551 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
17552 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17553 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17554 /* If there is a hole in the sequence count then fail. */
17555 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
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)
17568 * lpfc_prep_seq - Prep sequence for ULP processing
17569 * @vport: Pointer to the vport on which this sequence was received
17570 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17572 * This function takes a sequence, described by a list of frames, and creates
17573 * a list of iocbq structures to describe the sequence. This iocbq list will be
17574 * used to issue to the generic unsolicited sequence handler. This routine
17575 * returns a pointer to the first iocbq in the list. If the function is unable
17576 * to allocate an iocbq then it throw out the received frames that were not
17577 * able to be described and return a pointer to the first iocbq. If unable to
17578 * allocate any iocbqs (including the first) this function will return NULL.
17580 static struct lpfc_iocbq *
17581 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
17583 struct hbq_dmabuf *hbq_buf;
17584 struct lpfc_dmabuf *d_buf, *n_buf;
17585 struct lpfc_iocbq *first_iocbq, *iocbq;
17586 struct fc_frame_header *fc_hdr;
17588 uint32_t len, tot_len;
17589 struct ulp_bde64 *pbde;
17591 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17592 /* remove from receive buffer list */
17593 list_del_init(&seq_dmabuf->hbuf.list);
17594 lpfc_update_rcv_time_stamp(vport);
17595 /* get the Remote Port's SID */
17596 sid = sli4_sid_from_fc_hdr(fc_hdr);
17598 /* Get an iocbq struct to fill in. */
17599 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
17601 /* Initialize the first IOCB. */
17602 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
17603 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
17604 first_iocbq->vport = vport;
17606 /* Check FC Header to see what TYPE of frame we are rcv'ing */
17607 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
17608 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
17609 first_iocbq->iocb.un.rcvels.parmRo =
17610 sli4_did_from_fc_hdr(fc_hdr);
17611 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
17613 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
17614 first_iocbq->iocb.ulpContext = NO_XRI;
17615 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
17616 be16_to_cpu(fc_hdr->fh_ox_id);
17617 /* iocbq is prepped for internal consumption. Physical vpi. */
17618 first_iocbq->iocb.unsli3.rcvsli3.vpi =
17619 vport->phba->vpi_ids[vport->vpi];
17620 /* put the first buffer into the first IOCBq */
17621 tot_len = bf_get(lpfc_rcqe_length,
17622 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
17624 first_iocbq->context2 = &seq_dmabuf->dbuf;
17625 first_iocbq->context3 = NULL;
17626 first_iocbq->iocb.ulpBdeCount = 1;
17627 if (tot_len > LPFC_DATA_BUF_SIZE)
17628 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17629 LPFC_DATA_BUF_SIZE;
17631 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
17633 first_iocbq->iocb.un.rcvels.remoteID = sid;
17635 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17637 iocbq = first_iocbq;
17639 * Each IOCBq can have two Buffers assigned, so go through the list
17640 * of buffers for this sequence and save two buffers in each IOCBq
17642 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
17644 lpfc_in_buf_free(vport->phba, d_buf);
17647 if (!iocbq->context3) {
17648 iocbq->context3 = d_buf;
17649 iocbq->iocb.ulpBdeCount++;
17650 /* We need to get the size out of the right CQE */
17651 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17652 len = bf_get(lpfc_rcqe_length,
17653 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17654 pbde = (struct ulp_bde64 *)
17655 &iocbq->iocb.unsli3.sli3Words[4];
17656 if (len > LPFC_DATA_BUF_SIZE)
17657 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
17659 pbde->tus.f.bdeSize = len;
17661 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
17664 iocbq = lpfc_sli_get_iocbq(vport->phba);
17667 first_iocbq->iocb.ulpStatus =
17668 IOSTAT_FCP_RSP_ERROR;
17669 first_iocbq->iocb.un.ulpWord[4] =
17670 IOERR_NO_RESOURCES;
17672 lpfc_in_buf_free(vport->phba, d_buf);
17675 /* We need to get the size out of the right CQE */
17676 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17677 len = bf_get(lpfc_rcqe_length,
17678 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17679 iocbq->context2 = d_buf;
17680 iocbq->context3 = NULL;
17681 iocbq->iocb.ulpBdeCount = 1;
17682 if (len > LPFC_DATA_BUF_SIZE)
17683 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17684 LPFC_DATA_BUF_SIZE;
17686 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
17689 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17691 iocbq->iocb.un.rcvels.remoteID = sid;
17692 list_add_tail(&iocbq->list, &first_iocbq->list);
17695 return first_iocbq;
17699 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
17700 struct hbq_dmabuf *seq_dmabuf)
17702 struct fc_frame_header *fc_hdr;
17703 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
17704 struct lpfc_hba *phba = vport->phba;
17706 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17707 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
17709 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17710 "2707 Ring %d handler: Failed to allocate "
17711 "iocb Rctl x%x Type x%x received\n",
17713 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17716 if (!lpfc_complete_unsol_iocb(phba,
17717 phba->sli4_hba.els_wq->pring,
17718 iocbq, fc_hdr->fh_r_ctl,
17720 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17721 "2540 Ring %d handler: unexpected Rctl "
17722 "x%x Type x%x received\n",
17724 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17726 /* Free iocb created in lpfc_prep_seq */
17727 list_for_each_entry_safe(curr_iocb, next_iocb,
17728 &iocbq->list, list) {
17729 list_del_init(&curr_iocb->list);
17730 lpfc_sli_release_iocbq(phba, curr_iocb);
17732 lpfc_sli_release_iocbq(phba, iocbq);
17736 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
17737 struct lpfc_iocbq *rspiocb)
17739 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
17741 if (pcmd && pcmd->virt)
17742 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17744 lpfc_sli_release_iocbq(phba, cmdiocb);
17748 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
17749 struct hbq_dmabuf *dmabuf)
17751 struct fc_frame_header *fc_hdr;
17752 struct lpfc_hba *phba = vport->phba;
17753 struct lpfc_iocbq *iocbq = NULL;
17754 union lpfc_wqe *wqe;
17755 struct lpfc_dmabuf *pcmd = NULL;
17756 uint32_t frame_len;
17759 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17760 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
17762 /* Send the received frame back */
17763 iocbq = lpfc_sli_get_iocbq(phba);
17767 /* Allocate buffer for command payload */
17768 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
17770 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
17772 if (!pcmd || !pcmd->virt)
17775 INIT_LIST_HEAD(&pcmd->list);
17777 /* copyin the payload */
17778 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
17780 /* fill in BDE's for command */
17781 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
17782 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
17783 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
17784 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
17786 iocbq->context2 = pcmd;
17787 iocbq->vport = vport;
17788 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
17789 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
17792 * Setup rest of the iocb as though it were a WQE
17793 * Build the SEND_FRAME WQE
17795 wqe = (union lpfc_wqe *)&iocbq->iocb;
17797 wqe->send_frame.frame_len = frame_len;
17798 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
17799 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
17800 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
17801 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
17802 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
17803 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
17805 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
17806 iocbq->iocb.ulpLe = 1;
17807 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
17808 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
17809 if (rc == IOCB_ERROR)
17812 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17816 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
17817 "2023 Unable to process MDS loopback frame\n");
17818 if (pcmd && pcmd->virt)
17819 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17822 lpfc_sli_release_iocbq(phba, iocbq);
17823 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17827 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
17828 * @phba: Pointer to HBA context object.
17830 * This function is called with no lock held. This function processes all
17831 * the received buffers and gives it to upper layers when a received buffer
17832 * indicates that it is the final frame in the sequence. The interrupt
17833 * service routine processes received buffers at interrupt contexts.
17834 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
17835 * appropriate receive function when the final frame in a sequence is received.
17838 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
17839 struct hbq_dmabuf *dmabuf)
17841 struct hbq_dmabuf *seq_dmabuf;
17842 struct fc_frame_header *fc_hdr;
17843 struct lpfc_vport *vport;
17847 /* Process each received buffer */
17848 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17850 /* check to see if this a valid type of frame */
17851 if (lpfc_fc_frame_check(phba, fc_hdr)) {
17852 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17856 if ((bf_get(lpfc_cqe_code,
17857 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
17858 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
17859 &dmabuf->cq_event.cqe.rcqe_cmpl);
17861 fcfi = bf_get(lpfc_rcqe_fcf_id,
17862 &dmabuf->cq_event.cqe.rcqe_cmpl);
17864 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
17865 vport = phba->pport;
17866 /* Handle MDS Loopback frames */
17867 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
17871 /* d_id this frame is directed to */
17872 did = sli4_did_from_fc_hdr(fc_hdr);
17874 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
17876 /* throw out the frame */
17877 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17881 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
17882 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
17883 (did != Fabric_DID)) {
17885 * Throw out the frame if we are not pt2pt.
17886 * The pt2pt protocol allows for discovery frames
17887 * to be received without a registered VPI.
17889 if (!(vport->fc_flag & FC_PT2PT) ||
17890 (phba->link_state == LPFC_HBA_READY)) {
17891 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17896 /* Handle the basic abort sequence (BA_ABTS) event */
17897 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
17898 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
17902 /* Link this frame */
17903 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
17905 /* unable to add frame to vport - throw it out */
17906 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17909 /* If not last frame in sequence continue processing frames. */
17910 if (!lpfc_seq_complete(seq_dmabuf))
17913 /* Send the complete sequence to the upper layer protocol */
17914 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
17918 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
17919 * @phba: pointer to lpfc hba data structure.
17921 * This routine is invoked to post rpi header templates to the
17922 * HBA consistent with the SLI-4 interface spec. This routine
17923 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17924 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17926 * This routine does not require any locks. It's usage is expected
17927 * to be driver load or reset recovery when the driver is
17932 * -EIO - The mailbox failed to complete successfully.
17933 * When this error occurs, the driver is not guaranteed
17934 * to have any rpi regions posted to the device and
17935 * must either attempt to repost the regions or take a
17939 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
17941 struct lpfc_rpi_hdr *rpi_page;
17945 /* SLI4 ports that support extents do not require RPI headers. */
17946 if (!phba->sli4_hba.rpi_hdrs_in_use)
17948 if (phba->sli4_hba.extents_in_use)
17951 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
17953 * Assign the rpi headers a physical rpi only if the driver
17954 * has not initialized those resources. A port reset only
17955 * needs the headers posted.
17957 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
17959 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17961 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
17962 if (rc != MBX_SUCCESS) {
17963 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17964 "2008 Error %d posting all rpi "
17972 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
17973 LPFC_RPI_RSRC_RDY);
17978 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
17979 * @phba: pointer to lpfc hba data structure.
17980 * @rpi_page: pointer to the rpi memory region.
17982 * This routine is invoked to post a single rpi header to the
17983 * HBA consistent with the SLI-4 interface spec. This memory region
17984 * maps up to 64 rpi context regions.
17988 * -ENOMEM - No available memory
17989 * -EIO - The mailbox failed to complete successfully.
17992 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
17994 LPFC_MBOXQ_t *mboxq;
17995 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
17997 uint32_t shdr_status, shdr_add_status;
17998 union lpfc_sli4_cfg_shdr *shdr;
18000 /* SLI4 ports that support extents do not require RPI headers. */
18001 if (!phba->sli4_hba.rpi_hdrs_in_use)
18003 if (phba->sli4_hba.extents_in_use)
18006 /* The port is notified of the header region via a mailbox command. */
18007 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18009 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18010 "2001 Unable to allocate memory for issuing "
18011 "SLI_CONFIG_SPECIAL mailbox command\n");
18015 /* Post all rpi memory regions to the port. */
18016 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
18017 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18018 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
18019 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
18020 sizeof(struct lpfc_sli4_cfg_mhdr),
18021 LPFC_SLI4_MBX_EMBED);
18024 /* Post the physical rpi to the port for this rpi header. */
18025 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
18026 rpi_page->start_rpi);
18027 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
18028 hdr_tmpl, rpi_page->page_count);
18030 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
18031 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
18032 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18033 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
18034 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18035 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18036 if (rc != MBX_TIMEOUT)
18037 mempool_free(mboxq, phba->mbox_mem_pool);
18038 if (shdr_status || shdr_add_status || rc) {
18039 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18040 "2514 POST_RPI_HDR mailbox failed with "
18041 "status x%x add_status x%x, mbx status x%x\n",
18042 shdr_status, shdr_add_status, rc);
18046 * The next_rpi stores the next logical module-64 rpi value used
18047 * to post physical rpis in subsequent rpi postings.
18049 spin_lock_irq(&phba->hbalock);
18050 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
18051 spin_unlock_irq(&phba->hbalock);
18057 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
18058 * @phba: pointer to lpfc hba data structure.
18060 * This routine is invoked to post rpi header templates to the
18061 * HBA consistent with the SLI-4 interface spec. This routine
18062 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18063 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18066 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
18067 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
18070 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
18073 uint16_t max_rpi, rpi_limit;
18074 uint16_t rpi_remaining, lrpi = 0;
18075 struct lpfc_rpi_hdr *rpi_hdr;
18076 unsigned long iflag;
18079 * Fetch the next logical rpi. Because this index is logical,
18080 * the driver starts at 0 each time.
18082 spin_lock_irqsave(&phba->hbalock, iflag);
18083 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
18084 rpi_limit = phba->sli4_hba.next_rpi;
18086 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
18087 if (rpi >= rpi_limit)
18088 rpi = LPFC_RPI_ALLOC_ERROR;
18090 set_bit(rpi, phba->sli4_hba.rpi_bmask);
18091 phba->sli4_hba.max_cfg_param.rpi_used++;
18092 phba->sli4_hba.rpi_count++;
18094 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
18095 "0001 rpi:%x max:%x lim:%x\n",
18096 (int) rpi, max_rpi, rpi_limit);
18099 * Don't try to allocate more rpi header regions if the device limit
18100 * has been exhausted.
18102 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
18103 (phba->sli4_hba.rpi_count >= max_rpi)) {
18104 spin_unlock_irqrestore(&phba->hbalock, iflag);
18109 * RPI header postings are not required for SLI4 ports capable of
18112 if (!phba->sli4_hba.rpi_hdrs_in_use) {
18113 spin_unlock_irqrestore(&phba->hbalock, iflag);
18118 * If the driver is running low on rpi resources, allocate another
18119 * page now. Note that the next_rpi value is used because
18120 * it represents how many are actually in use whereas max_rpi notes
18121 * how many are supported max by the device.
18123 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
18124 spin_unlock_irqrestore(&phba->hbalock, iflag);
18125 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
18126 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
18128 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18129 "2002 Error Could not grow rpi "
18132 lrpi = rpi_hdr->start_rpi;
18133 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18134 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
18142 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18143 * @phba: pointer to lpfc hba data structure.
18145 * This routine is invoked to release an rpi to the pool of
18146 * available rpis maintained by the driver.
18149 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18151 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
18152 phba->sli4_hba.rpi_count--;
18153 phba->sli4_hba.max_cfg_param.rpi_used--;
18158 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18159 * @phba: pointer to lpfc hba data structure.
18161 * This routine is invoked to release an rpi to the pool of
18162 * available rpis maintained by the driver.
18165 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18167 spin_lock_irq(&phba->hbalock);
18168 __lpfc_sli4_free_rpi(phba, rpi);
18169 spin_unlock_irq(&phba->hbalock);
18173 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
18174 * @phba: pointer to lpfc hba data structure.
18176 * This routine is invoked to remove the memory region that
18177 * provided rpi via a bitmask.
18180 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
18182 kfree(phba->sli4_hba.rpi_bmask);
18183 kfree(phba->sli4_hba.rpi_ids);
18184 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
18188 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
18189 * @phba: pointer to lpfc hba data structure.
18191 * This routine is invoked to remove the memory region that
18192 * provided rpi via a bitmask.
18195 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
18196 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
18198 LPFC_MBOXQ_t *mboxq;
18199 struct lpfc_hba *phba = ndlp->phba;
18202 /* The port is notified of the header region via a mailbox command. */
18203 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18207 /* Post all rpi memory regions to the port. */
18208 lpfc_resume_rpi(mboxq, ndlp);
18210 mboxq->mbox_cmpl = cmpl;
18211 mboxq->context1 = arg;
18212 mboxq->context2 = ndlp;
18214 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18215 mboxq->vport = ndlp->vport;
18216 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18217 if (rc == MBX_NOT_FINISHED) {
18218 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18219 "2010 Resume RPI Mailbox failed "
18220 "status %d, mbxStatus x%x\n", rc,
18221 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18222 mempool_free(mboxq, phba->mbox_mem_pool);
18229 * lpfc_sli4_init_vpi - Initialize a vpi with the port
18230 * @vport: Pointer to the vport for which the vpi is being initialized
18232 * This routine is invoked to activate a vpi with the port.
18236 * -Evalue otherwise
18239 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
18241 LPFC_MBOXQ_t *mboxq;
18243 int retval = MBX_SUCCESS;
18245 struct lpfc_hba *phba = vport->phba;
18246 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18249 lpfc_init_vpi(phba, mboxq, vport->vpi);
18250 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
18251 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
18252 if (rc != MBX_SUCCESS) {
18253 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
18254 "2022 INIT VPI Mailbox failed "
18255 "status %d, mbxStatus x%x\n", rc,
18256 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18259 if (rc != MBX_TIMEOUT)
18260 mempool_free(mboxq, vport->phba->mbox_mem_pool);
18266 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
18267 * @phba: pointer to lpfc hba data structure.
18268 * @mboxq: Pointer to mailbox object.
18270 * This routine is invoked to manually add a single FCF record. The caller
18271 * must pass a completely initialized FCF_Record. This routine takes
18272 * care of the nonembedded mailbox operations.
18275 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
18278 union lpfc_sli4_cfg_shdr *shdr;
18279 uint32_t shdr_status, shdr_add_status;
18281 virt_addr = mboxq->sge_array->addr[0];
18282 /* The IOCTL status is embedded in the mailbox subheader. */
18283 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
18284 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18285 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18287 if ((shdr_status || shdr_add_status) &&
18288 (shdr_status != STATUS_FCF_IN_USE))
18289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18290 "2558 ADD_FCF_RECORD mailbox failed with "
18291 "status x%x add_status x%x\n",
18292 shdr_status, shdr_add_status);
18294 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18298 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
18299 * @phba: pointer to lpfc hba data structure.
18300 * @fcf_record: pointer to the initialized fcf record to add.
18302 * This routine is invoked to manually add a single FCF record. The caller
18303 * must pass a completely initialized FCF_Record. This routine takes
18304 * care of the nonembedded mailbox operations.
18307 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
18310 LPFC_MBOXQ_t *mboxq;
18313 struct lpfc_mbx_sge sge;
18314 uint32_t alloc_len, req_len;
18317 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18320 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
18324 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
18327 /* Allocate DMA memory and set up the non-embedded mailbox command */
18328 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18329 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
18330 req_len, LPFC_SLI4_MBX_NEMBED);
18331 if (alloc_len < req_len) {
18332 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18333 "2523 Allocated DMA memory size (x%x) is "
18334 "less than the requested DMA memory "
18335 "size (x%x)\n", alloc_len, req_len);
18336 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18341 * Get the first SGE entry from the non-embedded DMA memory. This
18342 * routine only uses a single SGE.
18344 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
18345 virt_addr = mboxq->sge_array->addr[0];
18347 * Configure the FCF record for FCFI 0. This is the driver's
18348 * hardcoded default and gets used in nonFIP mode.
18350 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
18351 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
18352 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
18355 * Copy the fcf_index and the FCF Record Data. The data starts after
18356 * the FCoE header plus word10. The data copy needs to be endian
18359 bytep += sizeof(uint32_t);
18360 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
18361 mboxq->vport = phba->pport;
18362 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
18363 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18364 if (rc == MBX_NOT_FINISHED) {
18365 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18366 "2515 ADD_FCF_RECORD mailbox failed with "
18367 "status 0x%x\n", rc);
18368 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18377 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
18378 * @phba: pointer to lpfc hba data structure.
18379 * @fcf_record: pointer to the fcf record to write the default data.
18380 * @fcf_index: FCF table entry index.
18382 * This routine is invoked to build the driver's default FCF record. The
18383 * values used are hardcoded. This routine handles memory initialization.
18387 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
18388 struct fcf_record *fcf_record,
18389 uint16_t fcf_index)
18391 memset(fcf_record, 0, sizeof(struct fcf_record));
18392 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
18393 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
18394 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
18395 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
18396 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
18397 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
18398 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
18399 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
18400 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
18401 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
18402 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
18403 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
18404 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
18405 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
18406 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
18407 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
18408 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
18409 /* Set the VLAN bit map */
18410 if (phba->valid_vlan) {
18411 fcf_record->vlan_bitmap[phba->vlan_id / 8]
18412 = 1 << (phba->vlan_id % 8);
18417 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
18418 * @phba: pointer to lpfc hba data structure.
18419 * @fcf_index: FCF table entry offset.
18421 * This routine is invoked to scan the entire FCF table by reading FCF
18422 * record and processing it one at a time starting from the @fcf_index
18423 * for initial FCF discovery or fast FCF failover rediscovery.
18425 * Return 0 if the mailbox command is submitted successfully, none 0
18429 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18432 LPFC_MBOXQ_t *mboxq;
18434 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
18435 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
18436 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18438 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18439 "2000 Failed to allocate mbox for "
18442 goto fail_fcf_scan;
18444 /* Construct the read FCF record mailbox command */
18445 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18448 goto fail_fcf_scan;
18450 /* Issue the mailbox command asynchronously */
18451 mboxq->vport = phba->pport;
18452 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
18454 spin_lock_irq(&phba->hbalock);
18455 phba->hba_flag |= FCF_TS_INPROG;
18456 spin_unlock_irq(&phba->hbalock);
18458 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18459 if (rc == MBX_NOT_FINISHED)
18462 /* Reset eligible FCF count for new scan */
18463 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
18464 phba->fcf.eligible_fcf_cnt = 0;
18470 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18471 /* FCF scan failed, clear FCF_TS_INPROG flag */
18472 spin_lock_irq(&phba->hbalock);
18473 phba->hba_flag &= ~FCF_TS_INPROG;
18474 spin_unlock_irq(&phba->hbalock);
18480 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
18481 * @phba: pointer to lpfc hba data structure.
18482 * @fcf_index: FCF table entry offset.
18484 * This routine is invoked to read an FCF record indicated by @fcf_index
18485 * and to use it for FLOGI roundrobin FCF failover.
18487 * Return 0 if the mailbox command is submitted successfully, none 0
18491 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18494 LPFC_MBOXQ_t *mboxq;
18496 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18498 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18499 "2763 Failed to allocate mbox for "
18502 goto fail_fcf_read;
18504 /* Construct the read FCF record mailbox command */
18505 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18508 goto fail_fcf_read;
18510 /* Issue the mailbox command asynchronously */
18511 mboxq->vport = phba->pport;
18512 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
18513 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18514 if (rc == MBX_NOT_FINISHED)
18520 if (error && mboxq)
18521 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18526 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
18527 * @phba: pointer to lpfc hba data structure.
18528 * @fcf_index: FCF table entry offset.
18530 * This routine is invoked to read an FCF record indicated by @fcf_index to
18531 * determine whether it's eligible for FLOGI roundrobin failover list.
18533 * Return 0 if the mailbox command is submitted successfully, none 0
18537 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18540 LPFC_MBOXQ_t *mboxq;
18542 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18544 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18545 "2758 Failed to allocate mbox for "
18548 goto fail_fcf_read;
18550 /* Construct the read FCF record mailbox command */
18551 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18554 goto fail_fcf_read;
18556 /* Issue the mailbox command asynchronously */
18557 mboxq->vport = phba->pport;
18558 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
18559 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18560 if (rc == MBX_NOT_FINISHED)
18566 if (error && mboxq)
18567 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18572 * lpfc_check_next_fcf_pri_level
18573 * phba pointer to the lpfc_hba struct for this port.
18574 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
18575 * routine when the rr_bmask is empty. The FCF indecies are put into the
18576 * rr_bmask based on their priority level. Starting from the highest priority
18577 * to the lowest. The most likely FCF candidate will be in the highest
18578 * priority group. When this routine is called it searches the fcf_pri list for
18579 * next lowest priority group and repopulates the rr_bmask with only those
18582 * 1=success 0=failure
18585 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
18587 uint16_t next_fcf_pri;
18588 uint16_t last_index;
18589 struct lpfc_fcf_pri *fcf_pri;
18593 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
18594 LPFC_SLI4_FCF_TBL_INDX_MAX);
18595 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18596 "3060 Last IDX %d\n", last_index);
18598 /* Verify the priority list has 2 or more entries */
18599 spin_lock_irq(&phba->hbalock);
18600 if (list_empty(&phba->fcf.fcf_pri_list) ||
18601 list_is_singular(&phba->fcf.fcf_pri_list)) {
18602 spin_unlock_irq(&phba->hbalock);
18603 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18604 "3061 Last IDX %d\n", last_index);
18605 return 0; /* Empty rr list */
18607 spin_unlock_irq(&phba->hbalock);
18611 * Clear the rr_bmask and set all of the bits that are at this
18614 memset(phba->fcf.fcf_rr_bmask, 0,
18615 sizeof(*phba->fcf.fcf_rr_bmask));
18616 spin_lock_irq(&phba->hbalock);
18617 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18618 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
18621 * the 1st priority that has not FLOGI failed
18622 * will be the highest.
18625 next_fcf_pri = fcf_pri->fcf_rec.priority;
18626 spin_unlock_irq(&phba->hbalock);
18627 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18628 rc = lpfc_sli4_fcf_rr_index_set(phba,
18629 fcf_pri->fcf_rec.fcf_index);
18633 spin_lock_irq(&phba->hbalock);
18636 * if next_fcf_pri was not set above and the list is not empty then
18637 * we have failed flogis on all of them. So reset flogi failed
18638 * and start at the beginning.
18640 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
18641 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18642 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
18644 * the 1st priority that has not FLOGI failed
18645 * will be the highest.
18648 next_fcf_pri = fcf_pri->fcf_rec.priority;
18649 spin_unlock_irq(&phba->hbalock);
18650 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18651 rc = lpfc_sli4_fcf_rr_index_set(phba,
18652 fcf_pri->fcf_rec.fcf_index);
18656 spin_lock_irq(&phba->hbalock);
18660 spin_unlock_irq(&phba->hbalock);
18665 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
18666 * @phba: pointer to lpfc hba data structure.
18668 * This routine is to get the next eligible FCF record index in a round
18669 * robin fashion. If the next eligible FCF record index equals to the
18670 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
18671 * shall be returned, otherwise, the next eligible FCF record's index
18672 * shall be returned.
18675 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
18677 uint16_t next_fcf_index;
18680 /* Search start from next bit of currently registered FCF index */
18681 next_fcf_index = phba->fcf.current_rec.fcf_indx;
18684 /* Determine the next fcf index to check */
18685 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
18686 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18687 LPFC_SLI4_FCF_TBL_INDX_MAX,
18690 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
18691 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18693 * If we have wrapped then we need to clear the bits that
18694 * have been tested so that we can detect when we should
18695 * change the priority level.
18697 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18698 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
18702 /* Check roundrobin failover list empty condition */
18703 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
18704 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
18706 * If next fcf index is not found check if there are lower
18707 * Priority level fcf's in the fcf_priority list.
18708 * Set up the rr_bmask with all of the avaiable fcf bits
18709 * at that level and continue the selection process.
18711 if (lpfc_check_next_fcf_pri_level(phba))
18712 goto initial_priority;
18713 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18714 "2844 No roundrobin failover FCF available\n");
18715 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
18716 return LPFC_FCOE_FCF_NEXT_NONE;
18718 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18719 "3063 Only FCF available idx %d, flag %x\n",
18721 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
18722 return next_fcf_index;
18726 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
18727 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
18728 LPFC_FCF_FLOGI_FAILED) {
18729 if (list_is_singular(&phba->fcf.fcf_pri_list))
18730 return LPFC_FCOE_FCF_NEXT_NONE;
18732 goto next_priority;
18735 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18736 "2845 Get next roundrobin failover FCF (x%x)\n",
18739 return next_fcf_index;
18743 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
18744 * @phba: pointer to lpfc hba data structure.
18746 * This routine sets the FCF record index in to the eligible bmask for
18747 * roundrobin failover search. It checks to make sure that the index
18748 * does not go beyond the range of the driver allocated bmask dimension
18749 * before setting the bit.
18751 * Returns 0 if the index bit successfully set, otherwise, it returns
18755 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
18757 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18758 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18759 "2610 FCF (x%x) reached driver's book "
18760 "keeping dimension:x%x\n",
18761 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18764 /* Set the eligible FCF record index bmask */
18765 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18767 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18768 "2790 Set FCF (x%x) to roundrobin FCF failover "
18769 "bmask\n", fcf_index);
18775 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
18776 * @phba: pointer to lpfc hba data structure.
18778 * This routine clears the FCF record index from the eligible bmask for
18779 * roundrobin failover search. It checks to make sure that the index
18780 * does not go beyond the range of the driver allocated bmask dimension
18781 * before clearing the bit.
18784 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
18786 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
18787 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18788 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18789 "2762 FCF (x%x) reached driver's book "
18790 "keeping dimension:x%x\n",
18791 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18794 /* Clear the eligible FCF record index bmask */
18795 spin_lock_irq(&phba->hbalock);
18796 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
18798 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
18799 list_del_init(&fcf_pri->list);
18803 spin_unlock_irq(&phba->hbalock);
18804 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18806 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18807 "2791 Clear FCF (x%x) from roundrobin failover "
18808 "bmask\n", fcf_index);
18812 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
18813 * @phba: pointer to lpfc hba data structure.
18815 * This routine is the completion routine for the rediscover FCF table mailbox
18816 * command. If the mailbox command returned failure, it will try to stop the
18817 * FCF rediscover wait timer.
18820 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
18822 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18823 uint32_t shdr_status, shdr_add_status;
18825 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18827 shdr_status = bf_get(lpfc_mbox_hdr_status,
18828 &redisc_fcf->header.cfg_shdr.response);
18829 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
18830 &redisc_fcf->header.cfg_shdr.response);
18831 if (shdr_status || shdr_add_status) {
18832 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18833 "2746 Requesting for FCF rediscovery failed "
18834 "status x%x add_status x%x\n",
18835 shdr_status, shdr_add_status);
18836 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
18837 spin_lock_irq(&phba->hbalock);
18838 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
18839 spin_unlock_irq(&phba->hbalock);
18841 * CVL event triggered FCF rediscover request failed,
18842 * last resort to re-try current registered FCF entry.
18844 lpfc_retry_pport_discovery(phba);
18846 spin_lock_irq(&phba->hbalock);
18847 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
18848 spin_unlock_irq(&phba->hbalock);
18850 * DEAD FCF event triggered FCF rediscover request
18851 * failed, last resort to fail over as a link down
18852 * to FCF registration.
18854 lpfc_sli4_fcf_dead_failthrough(phba);
18857 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18858 "2775 Start FCF rediscover quiescent timer\n");
18860 * Start FCF rediscovery wait timer for pending FCF
18861 * before rescan FCF record table.
18863 lpfc_fcf_redisc_wait_start_timer(phba);
18866 mempool_free(mbox, phba->mbox_mem_pool);
18870 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
18871 * @phba: pointer to lpfc hba data structure.
18873 * This routine is invoked to request for rediscovery of the entire FCF table
18877 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
18879 LPFC_MBOXQ_t *mbox;
18880 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18883 /* Cancel retry delay timers to all vports before FCF rediscover */
18884 lpfc_cancel_all_vport_retry_delay_timer(phba);
18886 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18888 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18889 "2745 Failed to allocate mbox for "
18890 "requesting FCF rediscover.\n");
18894 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
18895 sizeof(struct lpfc_sli4_cfg_mhdr));
18896 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18897 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
18898 length, LPFC_SLI4_MBX_EMBED);
18900 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18901 /* Set count to 0 for invalidating the entire FCF database */
18902 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
18904 /* Issue the mailbox command asynchronously */
18905 mbox->vport = phba->pport;
18906 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
18907 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
18909 if (rc == MBX_NOT_FINISHED) {
18910 mempool_free(mbox, phba->mbox_mem_pool);
18917 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
18918 * @phba: pointer to lpfc hba data structure.
18920 * This function is the failover routine as a last resort to the FCF DEAD
18921 * event when driver failed to perform fast FCF failover.
18924 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
18926 uint32_t link_state;
18929 * Last resort as FCF DEAD event failover will treat this as
18930 * a link down, but save the link state because we don't want
18931 * it to be changed to Link Down unless it is already down.
18933 link_state = phba->link_state;
18934 lpfc_linkdown(phba);
18935 phba->link_state = link_state;
18937 /* Unregister FCF if no devices connected to it */
18938 lpfc_unregister_unused_fcf(phba);
18942 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
18943 * @phba: pointer to lpfc hba data structure.
18944 * @rgn23_data: pointer to configure region 23 data.
18946 * This function gets SLI3 port configure region 23 data through memory dump
18947 * mailbox command. When it successfully retrieves data, the size of the data
18948 * will be returned, otherwise, 0 will be returned.
18951 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18953 LPFC_MBOXQ_t *pmb = NULL;
18955 uint32_t offset = 0;
18961 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18964 "2600 failed to allocate mailbox memory\n");
18970 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
18971 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
18973 if (rc != MBX_SUCCESS) {
18974 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
18975 "2601 failed to read config "
18976 "region 23, rc 0x%x Status 0x%x\n",
18977 rc, mb->mbxStatus);
18978 mb->un.varDmp.word_cnt = 0;
18981 * dump mem may return a zero when finished or we got a
18982 * mailbox error, either way we are done.
18984 if (mb->un.varDmp.word_cnt == 0)
18986 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
18987 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
18989 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
18990 rgn23_data + offset,
18991 mb->un.varDmp.word_cnt);
18992 offset += mb->un.varDmp.word_cnt;
18993 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
18995 mempool_free(pmb, phba->mbox_mem_pool);
19000 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
19001 * @phba: pointer to lpfc hba data structure.
19002 * @rgn23_data: pointer to configure region 23 data.
19004 * This function gets SLI4 port configure region 23 data through memory dump
19005 * mailbox command. When it successfully retrieves data, the size of the data
19006 * will be returned, otherwise, 0 will be returned.
19009 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19011 LPFC_MBOXQ_t *mboxq = NULL;
19012 struct lpfc_dmabuf *mp = NULL;
19013 struct lpfc_mqe *mqe;
19014 uint32_t data_length = 0;
19020 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19022 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19023 "3105 failed to allocate mailbox memory\n");
19027 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
19029 mqe = &mboxq->u.mqe;
19030 mp = (struct lpfc_dmabuf *) mboxq->context1;
19031 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
19034 data_length = mqe->un.mb_words[5];
19035 if (data_length == 0)
19037 if (data_length > DMP_RGN23_SIZE) {
19041 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
19043 mempool_free(mboxq, phba->mbox_mem_pool);
19045 lpfc_mbuf_free(phba, mp->virt, mp->phys);
19048 return data_length;
19052 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
19053 * @phba: pointer to lpfc hba data structure.
19055 * This function read region 23 and parse TLV for port status to
19056 * decide if the user disaled the port. If the TLV indicates the
19057 * port is disabled, the hba_flag is set accordingly.
19060 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
19062 uint8_t *rgn23_data = NULL;
19063 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
19064 uint32_t offset = 0;
19066 /* Get adapter Region 23 data */
19067 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
19071 if (phba->sli_rev < LPFC_SLI_REV4)
19072 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
19074 if_type = bf_get(lpfc_sli_intf_if_type,
19075 &phba->sli4_hba.sli_intf);
19076 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
19078 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
19084 /* Check the region signature first */
19085 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
19086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19087 "2619 Config region 23 has bad signature\n");
19092 /* Check the data structure version */
19093 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
19094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19095 "2620 Config region 23 has bad version\n");
19100 /* Parse TLV entries in the region */
19101 while (offset < data_size) {
19102 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
19105 * If the TLV is not driver specific TLV or driver id is
19106 * not linux driver id, skip the record.
19108 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
19109 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
19110 (rgn23_data[offset + 3] != 0)) {
19111 offset += rgn23_data[offset + 1] * 4 + 4;
19115 /* Driver found a driver specific TLV in the config region */
19116 sub_tlv_len = rgn23_data[offset + 1] * 4;
19121 * Search for configured port state sub-TLV.
19123 while ((offset < data_size) &&
19124 (tlv_offset < sub_tlv_len)) {
19125 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
19130 if (rgn23_data[offset] != PORT_STE_TYPE) {
19131 offset += rgn23_data[offset + 1] * 4 + 4;
19132 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
19136 /* This HBA contains PORT_STE configured */
19137 if (!rgn23_data[offset + 2])
19138 phba->hba_flag |= LINK_DISABLED;
19150 * lpfc_wr_object - write an object to the firmware
19151 * @phba: HBA structure that indicates port to create a queue on.
19152 * @dmabuf_list: list of dmabufs to write to the port.
19153 * @size: the total byte value of the objects to write to the port.
19154 * @offset: the current offset to be used to start the transfer.
19156 * This routine will create a wr_object mailbox command to send to the port.
19157 * the mailbox command will be constructed using the dma buffers described in
19158 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
19159 * BDEs that the imbedded mailbox can support. The @offset variable will be
19160 * used to indicate the starting offset of the transfer and will also return
19161 * the offset after the write object mailbox has completed. @size is used to
19162 * determine the end of the object and whether the eof bit should be set.
19164 * Return 0 is successful and offset will contain the the new offset to use
19165 * for the next write.
19166 * Return negative value for error cases.
19169 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
19170 uint32_t size, uint32_t *offset)
19172 struct lpfc_mbx_wr_object *wr_object;
19173 LPFC_MBOXQ_t *mbox;
19175 uint32_t shdr_status, shdr_add_status;
19177 union lpfc_sli4_cfg_shdr *shdr;
19178 struct lpfc_dmabuf *dmabuf;
19179 uint32_t written = 0;
19181 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19185 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
19186 LPFC_MBOX_OPCODE_WRITE_OBJECT,
19187 sizeof(struct lpfc_mbx_wr_object) -
19188 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
19190 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
19191 wr_object->u.request.write_offset = *offset;
19192 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
19193 wr_object->u.request.object_name[0] =
19194 cpu_to_le32(wr_object->u.request.object_name[0]);
19195 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
19196 list_for_each_entry(dmabuf, dmabuf_list, list) {
19197 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
19199 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
19200 wr_object->u.request.bde[i].addrHigh =
19201 putPaddrHigh(dmabuf->phys);
19202 if (written + SLI4_PAGE_SIZE >= size) {
19203 wr_object->u.request.bde[i].tus.f.bdeSize =
19205 written += (size - written);
19206 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
19208 wr_object->u.request.bde[i].tus.f.bdeSize =
19210 written += SLI4_PAGE_SIZE;
19214 wr_object->u.request.bde_count = i;
19215 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
19216 if (!phba->sli4_hba.intr_enable)
19217 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
19219 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
19220 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
19222 /* The IOCTL status is embedded in the mailbox subheader. */
19223 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
19224 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
19225 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
19226 if (rc != MBX_TIMEOUT)
19227 mempool_free(mbox, phba->mbox_mem_pool);
19228 if (shdr_status || shdr_add_status || rc) {
19229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19230 "3025 Write Object mailbox failed with "
19231 "status x%x add_status x%x, mbx status x%x\n",
19232 shdr_status, shdr_add_status, rc);
19234 *offset = shdr_add_status;
19236 *offset += wr_object->u.response.actual_write_length;
19241 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
19242 * @vport: pointer to vport data structure.
19244 * This function iterate through the mailboxq and clean up all REG_LOGIN
19245 * and REG_VPI mailbox commands associated with the vport. This function
19246 * is called when driver want to restart discovery of the vport due to
19247 * a Clear Virtual Link event.
19250 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
19252 struct lpfc_hba *phba = vport->phba;
19253 LPFC_MBOXQ_t *mb, *nextmb;
19254 struct lpfc_dmabuf *mp;
19255 struct lpfc_nodelist *ndlp;
19256 struct lpfc_nodelist *act_mbx_ndlp = NULL;
19257 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
19258 LIST_HEAD(mbox_cmd_list);
19259 uint8_t restart_loop;
19261 /* Clean up internally queued mailbox commands with the vport */
19262 spin_lock_irq(&phba->hbalock);
19263 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
19264 if (mb->vport != vport)
19267 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19268 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19271 list_del(&mb->list);
19272 list_add_tail(&mb->list, &mbox_cmd_list);
19274 /* Clean up active mailbox command with the vport */
19275 mb = phba->sli.mbox_active;
19276 if (mb && (mb->vport == vport)) {
19277 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
19278 (mb->u.mb.mbxCommand == MBX_REG_VPI))
19279 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19280 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19281 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
19282 /* Put reference count for delayed processing */
19283 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
19284 /* Unregister the RPI when mailbox complete */
19285 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19288 /* Cleanup any mailbox completions which are not yet processed */
19291 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
19293 * If this mailox is already processed or it is
19294 * for another vport ignore it.
19296 if ((mb->vport != vport) ||
19297 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
19300 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19301 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19304 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19305 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19306 ndlp = (struct lpfc_nodelist *)mb->context2;
19307 /* Unregister the RPI when mailbox complete */
19308 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19310 spin_unlock_irq(&phba->hbalock);
19311 spin_lock(shost->host_lock);
19312 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19313 spin_unlock(shost->host_lock);
19314 spin_lock_irq(&phba->hbalock);
19318 } while (restart_loop);
19320 spin_unlock_irq(&phba->hbalock);
19322 /* Release the cleaned-up mailbox commands */
19323 while (!list_empty(&mbox_cmd_list)) {
19324 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
19325 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19326 mp = (struct lpfc_dmabuf *) (mb->context1);
19328 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
19331 ndlp = (struct lpfc_nodelist *) mb->context2;
19332 mb->context2 = NULL;
19334 spin_lock(shost->host_lock);
19335 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19336 spin_unlock(shost->host_lock);
19337 lpfc_nlp_put(ndlp);
19340 mempool_free(mb, phba->mbox_mem_pool);
19343 /* Release the ndlp with the cleaned-up active mailbox command */
19344 if (act_mbx_ndlp) {
19345 spin_lock(shost->host_lock);
19346 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19347 spin_unlock(shost->host_lock);
19348 lpfc_nlp_put(act_mbx_ndlp);
19353 * lpfc_drain_txq - Drain the txq
19354 * @phba: Pointer to HBA context object.
19356 * This function attempt to submit IOCBs on the txq
19357 * to the adapter. For SLI4 adapters, the txq contains
19358 * ELS IOCBs that have been deferred because the there
19359 * are no SGLs. This congestion can occur with large
19360 * vport counts during node discovery.
19364 lpfc_drain_txq(struct lpfc_hba *phba)
19366 LIST_HEAD(completions);
19367 struct lpfc_sli_ring *pring;
19368 struct lpfc_iocbq *piocbq = NULL;
19369 unsigned long iflags = 0;
19370 char *fail_msg = NULL;
19371 struct lpfc_sglq *sglq;
19372 union lpfc_wqe128 wqe;
19373 uint32_t txq_cnt = 0;
19374 struct lpfc_queue *wq;
19376 if (phba->link_flag & LS_MDS_LOOPBACK) {
19377 /* MDS WQE are posted only to first WQ*/
19378 wq = phba->sli4_hba.fcp_wq[0];
19383 wq = phba->sli4_hba.els_wq;
19386 pring = lpfc_phba_elsring(phba);
19389 if (unlikely(!pring) || list_empty(&pring->txq))
19392 spin_lock_irqsave(&pring->ring_lock, iflags);
19393 list_for_each_entry(piocbq, &pring->txq, list) {
19397 if (txq_cnt > pring->txq_max)
19398 pring->txq_max = txq_cnt;
19400 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19402 while (!list_empty(&pring->txq)) {
19403 spin_lock_irqsave(&pring->ring_lock, iflags);
19405 piocbq = lpfc_sli_ringtx_get(phba, pring);
19407 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19408 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19409 "2823 txq empty and txq_cnt is %d\n ",
19413 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
19415 __lpfc_sli_ringtx_put(phba, pring, piocbq);
19416 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19421 /* The xri and iocb resources secured,
19422 * attempt to issue request
19424 piocbq->sli4_lxritag = sglq->sli4_lxritag;
19425 piocbq->sli4_xritag = sglq->sli4_xritag;
19426 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
19427 fail_msg = "to convert bpl to sgl";
19428 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
19429 fail_msg = "to convert iocb to wqe";
19430 else if (lpfc_sli4_wq_put(wq, &wqe))
19431 fail_msg = " - Wq is full";
19433 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
19436 /* Failed means we can't issue and need to cancel */
19437 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19438 "2822 IOCB failed %s iotag 0x%x "
19441 piocbq->iotag, piocbq->sli4_xritag);
19442 list_add_tail(&piocbq->list, &completions);
19444 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19447 /* Cancel all the IOCBs that cannot be issued */
19448 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
19449 IOERR_SLI_ABORTED);
19455 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
19456 * @phba: Pointer to HBA context object.
19457 * @pwqe: Pointer to command WQE.
19458 * @sglq: Pointer to the scatter gather queue object.
19460 * This routine converts the bpl or bde that is in the WQE
19461 * to a sgl list for the sli4 hardware. The physical address
19462 * of the bpl/bde is converted back to a virtual address.
19463 * If the WQE contains a BPL then the list of BDE's is
19464 * converted to sli4_sge's. If the WQE contains a single
19465 * BDE then it is converted to a single sli_sge.
19466 * The WQE is still in cpu endianness so the contents of
19467 * the bpl can be used without byte swapping.
19469 * Returns valid XRI = Success, NO_XRI = Failure.
19472 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
19473 struct lpfc_sglq *sglq)
19475 uint16_t xritag = NO_XRI;
19476 struct ulp_bde64 *bpl = NULL;
19477 struct ulp_bde64 bde;
19478 struct sli4_sge *sgl = NULL;
19479 struct lpfc_dmabuf *dmabuf;
19480 union lpfc_wqe128 *wqe;
19483 uint32_t offset = 0; /* accumulated offset in the sg request list */
19484 int inbound = 0; /* number of sg reply entries inbound from firmware */
19487 if (!pwqeq || !sglq)
19490 sgl = (struct sli4_sge *)sglq->sgl;
19492 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
19494 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
19495 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
19496 return sglq->sli4_xritag;
19497 numBdes = pwqeq->rsvd2;
19499 /* The addrHigh and addrLow fields within the WQE
19500 * have not been byteswapped yet so there is no
19501 * need to swap them back.
19503 if (pwqeq->context3)
19504 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
19508 bpl = (struct ulp_bde64 *)dmabuf->virt;
19512 for (i = 0; i < numBdes; i++) {
19513 /* Should already be byte swapped. */
19514 sgl->addr_hi = bpl->addrHigh;
19515 sgl->addr_lo = bpl->addrLow;
19517 sgl->word2 = le32_to_cpu(sgl->word2);
19518 if ((i+1) == numBdes)
19519 bf_set(lpfc_sli4_sge_last, sgl, 1);
19521 bf_set(lpfc_sli4_sge_last, sgl, 0);
19522 /* swap the size field back to the cpu so we
19523 * can assign it to the sgl.
19525 bde.tus.w = le32_to_cpu(bpl->tus.w);
19526 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
19527 /* The offsets in the sgl need to be accumulated
19528 * separately for the request and reply lists.
19529 * The request is always first, the reply follows.
19532 case CMD_GEN_REQUEST64_WQE:
19533 /* add up the reply sg entries */
19534 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
19536 /* first inbound? reset the offset */
19539 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19540 bf_set(lpfc_sli4_sge_type, sgl,
19541 LPFC_SGE_TYPE_DATA);
19542 offset += bde.tus.f.bdeSize;
19544 case CMD_FCP_TRSP64_WQE:
19545 bf_set(lpfc_sli4_sge_offset, sgl, 0);
19546 bf_set(lpfc_sli4_sge_type, sgl,
19547 LPFC_SGE_TYPE_DATA);
19549 case CMD_FCP_TSEND64_WQE:
19550 case CMD_FCP_TRECEIVE64_WQE:
19551 bf_set(lpfc_sli4_sge_type, sgl,
19552 bpl->tus.f.bdeFlags);
19556 offset += bde.tus.f.bdeSize;
19557 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19560 sgl->word2 = cpu_to_le32(sgl->word2);
19564 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
19565 /* The addrHigh and addrLow fields of the BDE have not
19566 * been byteswapped yet so they need to be swapped
19567 * before putting them in the sgl.
19569 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
19570 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
19571 sgl->word2 = le32_to_cpu(sgl->word2);
19572 bf_set(lpfc_sli4_sge_last, sgl, 1);
19573 sgl->word2 = cpu_to_le32(sgl->word2);
19574 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
19576 return sglq->sli4_xritag;
19580 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
19581 * @phba: Pointer to HBA context object.
19582 * @ring_number: Base sli ring number
19583 * @pwqe: Pointer to command WQE.
19586 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, uint32_t ring_number,
19587 struct lpfc_iocbq *pwqe)
19589 union lpfc_wqe128 *wqe = &pwqe->wqe;
19590 struct lpfc_nvmet_rcv_ctx *ctxp;
19591 struct lpfc_queue *wq;
19592 struct lpfc_sglq *sglq;
19593 struct lpfc_sli_ring *pring;
19594 unsigned long iflags;
19597 /* NVME_LS and NVME_LS ABTS requests. */
19598 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
19599 pring = phba->sli4_hba.nvmels_wq->pring;
19600 spin_lock_irqsave(&pring->ring_lock, iflags);
19601 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
19603 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19606 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19607 pwqe->sli4_xritag = sglq->sli4_xritag;
19608 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
19609 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19612 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19613 pwqe->sli4_xritag);
19614 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
19616 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19620 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19621 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19625 /* NVME_FCREQ and NVME_ABTS requests */
19626 if (pwqe->iocb_flag & LPFC_IO_NVME) {
19627 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19628 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
19630 spin_lock_irqsave(&pring->ring_lock, iflags);
19631 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
19632 bf_set(wqe_cqid, &wqe->generic.wqe_com,
19633 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
19634 ret = lpfc_sli4_wq_put(wq, wqe);
19636 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19639 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19640 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19644 /* NVMET requests */
19645 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
19646 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19647 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
19649 spin_lock_irqsave(&pring->ring_lock, iflags);
19650 ctxp = pwqe->context2;
19651 sglq = ctxp->ctxbuf->sglq;
19652 if (pwqe->sli4_xritag == NO_XRI) {
19653 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19654 pwqe->sli4_xritag = sglq->sli4_xritag;
19656 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19657 pwqe->sli4_xritag);
19658 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
19659 bf_set(wqe_cqid, &wqe->generic.wqe_com,
19660 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
19661 ret = lpfc_sli4_wq_put(wq, wqe);
19663 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19666 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19667 spin_unlock_irqrestore(&pring->ring_lock, iflags);