1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2021 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>
38 #include <linux/crash_dump.h>
40 #include <asm/set_memory.h>
46 #include "lpfc_sli4.h"
48 #include "lpfc_disc.h"
50 #include "lpfc_scsi.h"
51 #include "lpfc_nvme.h"
52 #include "lpfc_crtn.h"
53 #include "lpfc_logmsg.h"
54 #include "lpfc_compat.h"
55 #include "lpfc_debugfs.h"
56 #include "lpfc_vport.h"
57 #include "lpfc_version.h"
59 /* There are only four IOCB completion types. */
60 typedef enum _lpfc_iocb_type {
68 /* Provide function prototypes local to this module. */
69 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
71 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
72 uint8_t *, uint32_t *);
73 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
75 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
77 static void lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
78 struct hbq_dmabuf *dmabuf);
79 static bool lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba,
80 struct lpfc_queue *cq, struct lpfc_cqe *cqe);
81 static int lpfc_sli4_post_sgl_list(struct lpfc_hba *, struct list_head *,
83 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba,
84 struct lpfc_queue *eq,
85 struct lpfc_eqe *eqe);
86 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
87 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
88 static struct lpfc_cqe *lpfc_sli4_cq_get(struct lpfc_queue *q);
89 static void __lpfc_sli4_consume_cqe(struct lpfc_hba *phba,
90 struct lpfc_queue *cq,
91 struct lpfc_cqe *cqe);
93 union lpfc_wqe128 lpfc_iread_cmd_template;
94 union lpfc_wqe128 lpfc_iwrite_cmd_template;
95 union lpfc_wqe128 lpfc_icmnd_cmd_template;
98 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
103 /* Setup WQE templates for IOs */
104 void lpfc_wqe_cmd_template(void)
106 union lpfc_wqe128 *wqe;
109 wqe = &lpfc_iread_cmd_template;
110 memset(wqe, 0, sizeof(union lpfc_wqe128));
112 /* Word 0, 1, 2 - BDE is variable */
114 /* Word 3 - cmd_buff_len, payload_offset_len is zero */
116 /* Word 4 - total_xfer_len is variable */
118 /* Word 5 - is zero */
120 /* Word 6 - ctxt_tag, xri_tag is variable */
123 bf_set(wqe_cmnd, &wqe->fcp_iread.wqe_com, CMD_FCP_IREAD64_WQE);
124 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, PARM_READ_CHECK);
125 bf_set(wqe_class, &wqe->fcp_iread.wqe_com, CLASS3);
126 bf_set(wqe_ct, &wqe->fcp_iread.wqe_com, SLI4_CT_RPI);
128 /* Word 8 - abort_tag is variable */
130 /* Word 9 - reqtag is variable */
132 /* Word 10 - dbde, wqes is variable */
133 bf_set(wqe_qosd, &wqe->fcp_iread.wqe_com, 0);
134 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
135 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com, LPFC_WQE_LENLOC_WORD4);
136 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
137 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
139 /* Word 11 - pbde is variable */
140 bf_set(wqe_cmd_type, &wqe->fcp_iread.wqe_com, COMMAND_DATA_IN);
141 bf_set(wqe_cqid, &wqe->fcp_iread.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
142 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
144 /* Word 12 - is zero */
146 /* Word 13, 14, 15 - PBDE is variable */
148 /* IWRITE template */
149 wqe = &lpfc_iwrite_cmd_template;
150 memset(wqe, 0, sizeof(union lpfc_wqe128));
152 /* Word 0, 1, 2 - BDE is variable */
154 /* Word 3 - cmd_buff_len, payload_offset_len is zero */
156 /* Word 4 - total_xfer_len is variable */
158 /* Word 5 - initial_xfer_len is variable */
160 /* Word 6 - ctxt_tag, xri_tag is variable */
163 bf_set(wqe_cmnd, &wqe->fcp_iwrite.wqe_com, CMD_FCP_IWRITE64_WQE);
164 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, PARM_READ_CHECK);
165 bf_set(wqe_class, &wqe->fcp_iwrite.wqe_com, CLASS3);
166 bf_set(wqe_ct, &wqe->fcp_iwrite.wqe_com, SLI4_CT_RPI);
168 /* Word 8 - abort_tag is variable */
170 /* Word 9 - reqtag is variable */
172 /* Word 10 - dbde, wqes is variable */
173 bf_set(wqe_qosd, &wqe->fcp_iwrite.wqe_com, 0);
174 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
175 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_LENLOC_WORD4);
176 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
177 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
179 /* Word 11 - pbde is variable */
180 bf_set(wqe_cmd_type, &wqe->fcp_iwrite.wqe_com, COMMAND_DATA_OUT);
181 bf_set(wqe_cqid, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
182 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
184 /* Word 12 - is zero */
186 /* Word 13, 14, 15 - PBDE is variable */
189 wqe = &lpfc_icmnd_cmd_template;
190 memset(wqe, 0, sizeof(union lpfc_wqe128));
192 /* Word 0, 1, 2 - BDE is variable */
194 /* Word 3 - payload_offset_len is variable */
196 /* Word 4, 5 - is zero */
198 /* Word 6 - ctxt_tag, xri_tag is variable */
201 bf_set(wqe_cmnd, &wqe->fcp_icmd.wqe_com, CMD_FCP_ICMND64_WQE);
202 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
203 bf_set(wqe_class, &wqe->fcp_icmd.wqe_com, CLASS3);
204 bf_set(wqe_ct, &wqe->fcp_icmd.wqe_com, SLI4_CT_RPI);
206 /* Word 8 - abort_tag is variable */
208 /* Word 9 - reqtag is variable */
210 /* Word 10 - dbde, wqes is variable */
211 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
212 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_NONE);
213 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com, LPFC_WQE_LENLOC_NONE);
214 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
215 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
218 bf_set(wqe_cmd_type, &wqe->fcp_icmd.wqe_com, COMMAND_DATA_IN);
219 bf_set(wqe_cqid, &wqe->fcp_icmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
220 bf_set(wqe_pbde, &wqe->fcp_icmd.wqe_com, 0);
222 /* Word 12, 13, 14, 15 - is zero */
225 #if defined(CONFIG_64BIT) && defined(__LITTLE_ENDIAN)
227 * lpfc_sli4_pcimem_bcopy - SLI4 memory copy function
228 * @srcp: Source memory pointer.
229 * @destp: Destination memory pointer.
230 * @cnt: Number of words required to be copied.
231 * Must be a multiple of sizeof(uint64_t)
233 * This function is used for copying data between driver memory
234 * and the SLI WQ. This function also changes the endianness
235 * of each word if native endianness is different from SLI
236 * endianness. This function can be called with or without
240 lpfc_sli4_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
242 uint64_t *src = srcp;
243 uint64_t *dest = destp;
246 for (i = 0; i < (int)cnt; i += sizeof(uint64_t))
250 #define lpfc_sli4_pcimem_bcopy(a, b, c) lpfc_sli_pcimem_bcopy(a, b, c)
254 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
255 * @q: The Work Queue to operate on.
256 * @wqe: The work Queue Entry to put on the Work queue.
258 * This routine will copy the contents of @wqe to the next available entry on
259 * the @q. This function will then ring the Work Queue Doorbell to signal the
260 * HBA to start processing the Work Queue Entry. This function returns 0 if
261 * successful. If no entries are available on @q then this function will return
263 * The caller is expected to hold the hbalock when calling this routine.
266 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe128 *wqe)
268 union lpfc_wqe *temp_wqe;
269 struct lpfc_register doorbell;
276 /* sanity check on queue memory */
280 temp_wqe = lpfc_sli4_qe(q, q->host_index);
282 /* If the host has not yet processed the next entry then we are done */
283 idx = ((q->host_index + 1) % q->entry_count);
284 if (idx == q->hba_index) {
289 /* set consumption flag every once in a while */
290 if (!((q->host_index + 1) % q->notify_interval))
291 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
293 bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
294 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
295 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
296 lpfc_sli4_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
297 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
298 /* write to DPP aperture taking advatage of Combined Writes */
299 tmp = (uint8_t *)temp_wqe;
301 for (i = 0; i < q->entry_size; i += sizeof(uint64_t))
302 __raw_writeq(*((uint64_t *)(tmp + i)),
305 for (i = 0; i < q->entry_size; i += sizeof(uint32_t))
306 __raw_writel(*((uint32_t *)(tmp + i)),
310 /* ensure WQE bcopy and DPP flushed before doorbell write */
313 /* Update the host index before invoking device */
314 host_index = q->host_index;
320 if (q->db_format == LPFC_DB_LIST_FORMAT) {
321 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
322 bf_set(lpfc_if6_wq_db_list_fm_num_posted, &doorbell, 1);
323 bf_set(lpfc_if6_wq_db_list_fm_dpp, &doorbell, 1);
324 bf_set(lpfc_if6_wq_db_list_fm_dpp_id, &doorbell,
326 bf_set(lpfc_if6_wq_db_list_fm_id, &doorbell,
329 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
330 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
332 /* Leave bits <23:16> clear for if_type 6 dpp */
333 if_type = bf_get(lpfc_sli_intf_if_type,
334 &q->phba->sli4_hba.sli_intf);
335 if (if_type != LPFC_SLI_INTF_IF_TYPE_6)
336 bf_set(lpfc_wq_db_list_fm_index, &doorbell,
339 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
340 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
341 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
345 writel(doorbell.word0, q->db_regaddr);
351 * lpfc_sli4_wq_release - Updates internal hba index for WQ
352 * @q: The Work Queue to operate on.
353 * @index: The index to advance the hba index to.
355 * This routine will update the HBA index of a queue to reflect consumption of
356 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
357 * an entry the host calls this function to update the queue's internal
361 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
363 /* sanity check on queue memory */
367 q->hba_index = index;
371 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
372 * @q: The Mailbox Queue to operate on.
373 * @mqe: The Mailbox Queue Entry to put on the Work queue.
375 * This routine will copy the contents of @mqe to the next available entry on
376 * the @q. This function will then ring the Work Queue Doorbell to signal the
377 * HBA to start processing the Work Queue Entry. This function returns 0 if
378 * successful. If no entries are available on @q then this function will return
380 * The caller is expected to hold the hbalock when calling this routine.
383 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
385 struct lpfc_mqe *temp_mqe;
386 struct lpfc_register doorbell;
388 /* sanity check on queue memory */
391 temp_mqe = lpfc_sli4_qe(q, q->host_index);
393 /* If the host has not yet processed the next entry then we are done */
394 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
396 lpfc_sli4_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
397 /* Save off the mailbox pointer for completion */
398 q->phba->mbox = (MAILBOX_t *)temp_mqe;
400 /* Update the host index before invoking device */
401 q->host_index = ((q->host_index + 1) % q->entry_count);
405 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
406 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
407 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
412 * lpfc_sli4_mq_release - Updates internal hba index for MQ
413 * @q: The Mailbox Queue to operate on.
415 * This routine will update the HBA index of a queue to reflect consumption of
416 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
417 * an entry the host calls this function to update the queue's internal
418 * pointers. This routine returns the number of entries that were consumed by
422 lpfc_sli4_mq_release(struct lpfc_queue *q)
424 /* sanity check on queue memory */
428 /* Clear the mailbox pointer for completion */
429 q->phba->mbox = NULL;
430 q->hba_index = ((q->hba_index + 1) % q->entry_count);
435 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
436 * @q: The Event Queue to get the first valid EQE from
438 * This routine will get the first valid Event Queue Entry from @q, update
439 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
440 * the Queue (no more work to do), or the Queue is full of EQEs that have been
441 * processed, but not popped back to the HBA then this routine will return NULL.
443 static struct lpfc_eqe *
444 lpfc_sli4_eq_get(struct lpfc_queue *q)
446 struct lpfc_eqe *eqe;
448 /* sanity check on queue memory */
451 eqe = lpfc_sli4_qe(q, q->host_index);
453 /* If the next EQE is not valid then we are done */
454 if (bf_get_le32(lpfc_eqe_valid, eqe) != q->qe_valid)
458 * insert barrier for instruction interlock : data from the hardware
459 * must have the valid bit checked before it can be copied and acted
460 * upon. Speculative instructions were allowing a bcopy at the start
461 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
462 * after our return, to copy data before the valid bit check above
463 * was done. As such, some of the copied data was stale. The barrier
464 * ensures the check is before any data is copied.
471 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
472 * @q: The Event Queue to disable interrupts
476 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
478 struct lpfc_register doorbell;
481 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
482 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
483 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
484 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
485 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
486 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
490 * lpfc_sli4_if6_eq_clr_intr - Turn off interrupts from this EQ
491 * @q: The Event Queue to disable interrupts
495 lpfc_sli4_if6_eq_clr_intr(struct lpfc_queue *q)
497 struct lpfc_register doorbell;
500 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
501 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
505 * lpfc_sli4_write_eq_db - write EQ DB for eqe's consumed or arm state
506 * @phba: adapter with EQ
507 * @q: The Event Queue that the host has completed processing for.
508 * @count: Number of elements that have been consumed
509 * @arm: Indicates whether the host wants to arms this CQ.
511 * This routine will notify the HBA, by ringing the doorbell, that count
512 * number of EQEs have been processed. The @arm parameter indicates whether
513 * the queue should be rearmed when ringing the doorbell.
516 lpfc_sli4_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
517 uint32_t count, bool arm)
519 struct lpfc_register doorbell;
521 /* sanity check on queue memory */
522 if (unlikely(!q || (count == 0 && !arm)))
525 /* ring doorbell for number popped */
528 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
529 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
531 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
532 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
533 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
534 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
535 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
536 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
537 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
538 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
539 readl(q->phba->sli4_hba.EQDBregaddr);
543 * lpfc_sli4_if6_write_eq_db - write EQ DB for eqe's consumed or arm state
544 * @phba: adapter with EQ
545 * @q: The Event Queue that the host has completed processing for.
546 * @count: Number of elements that have been consumed
547 * @arm: Indicates whether the host wants to arms this CQ.
549 * This routine will notify the HBA, by ringing the doorbell, that count
550 * number of EQEs have been processed. The @arm parameter indicates whether
551 * the queue should be rearmed when ringing the doorbell.
554 lpfc_sli4_if6_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
555 uint32_t count, bool arm)
557 struct lpfc_register doorbell;
559 /* sanity check on queue memory */
560 if (unlikely(!q || (count == 0 && !arm)))
563 /* ring doorbell for number popped */
566 bf_set(lpfc_if6_eq_doorbell_arm, &doorbell, 1);
567 bf_set(lpfc_if6_eq_doorbell_num_released, &doorbell, count);
568 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
569 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
570 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
571 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
572 readl(q->phba->sli4_hba.EQDBregaddr);
576 __lpfc_sli4_consume_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
577 struct lpfc_eqe *eqe)
579 if (!phba->sli4_hba.pc_sli4_params.eqav)
580 bf_set_le32(lpfc_eqe_valid, eqe, 0);
582 eq->host_index = ((eq->host_index + 1) % eq->entry_count);
584 /* if the index wrapped around, toggle the valid bit */
585 if (phba->sli4_hba.pc_sli4_params.eqav && !eq->host_index)
586 eq->qe_valid = (eq->qe_valid) ? 0 : 1;
590 lpfc_sli4_eqcq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
592 struct lpfc_eqe *eqe = NULL;
593 u32 eq_count = 0, cq_count = 0;
594 struct lpfc_cqe *cqe = NULL;
595 struct lpfc_queue *cq = NULL, *childq = NULL;
598 /* walk all the EQ entries and drop on the floor */
599 eqe = lpfc_sli4_eq_get(eq);
601 /* Get the reference to the corresponding CQ */
602 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
605 list_for_each_entry(childq, &eq->child_list, list) {
606 if (childq->queue_id == cqid) {
611 /* If CQ is valid, iterate through it and drop all the CQEs */
613 cqe = lpfc_sli4_cq_get(cq);
615 __lpfc_sli4_consume_cqe(phba, cq, cqe);
617 cqe = lpfc_sli4_cq_get(cq);
619 /* Clear and re-arm the CQ */
620 phba->sli4_hba.sli4_write_cq_db(phba, cq, cq_count,
624 __lpfc_sli4_consume_eqe(phba, eq, eqe);
626 eqe = lpfc_sli4_eq_get(eq);
629 /* Clear and re-arm the EQ */
630 phba->sli4_hba.sli4_write_eq_db(phba, eq, eq_count, LPFC_QUEUE_REARM);
634 lpfc_sli4_process_eq(struct lpfc_hba *phba, struct lpfc_queue *eq,
637 struct lpfc_eqe *eqe;
638 int count = 0, consumed = 0;
640 if (cmpxchg(&eq->queue_claimed, 0, 1) != 0)
643 eqe = lpfc_sli4_eq_get(eq);
645 lpfc_sli4_hba_handle_eqe(phba, eq, eqe);
646 __lpfc_sli4_consume_eqe(phba, eq, eqe);
649 if (!(++count % eq->max_proc_limit))
652 if (!(count % eq->notify_interval)) {
653 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed,
658 eqe = lpfc_sli4_eq_get(eq);
660 eq->EQ_processed += count;
662 /* Track the max number of EQEs processed in 1 intr */
663 if (count > eq->EQ_max_eqe)
664 eq->EQ_max_eqe = count;
666 xchg(&eq->queue_claimed, 0);
669 /* Always clear the EQ. */
670 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed, rearm);
676 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
677 * @q: The Completion Queue to get the first valid CQE from
679 * This routine will get the first valid Completion Queue Entry from @q, update
680 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
681 * the Queue (no more work to do), or the Queue is full of CQEs that have been
682 * processed, but not popped back to the HBA then this routine will return NULL.
684 static struct lpfc_cqe *
685 lpfc_sli4_cq_get(struct lpfc_queue *q)
687 struct lpfc_cqe *cqe;
689 /* sanity check on queue memory */
692 cqe = lpfc_sli4_qe(q, q->host_index);
694 /* If the next CQE is not valid then we are done */
695 if (bf_get_le32(lpfc_cqe_valid, cqe) != q->qe_valid)
699 * insert barrier for instruction interlock : data from the hardware
700 * must have the valid bit checked before it can be copied and acted
701 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
702 * instructions allowing action on content before valid bit checked,
703 * add barrier here as well. May not be needed as "content" is a
704 * single 32-bit entity here (vs multi word structure for cq's).
711 __lpfc_sli4_consume_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
712 struct lpfc_cqe *cqe)
714 if (!phba->sli4_hba.pc_sli4_params.cqav)
715 bf_set_le32(lpfc_cqe_valid, cqe, 0);
717 cq->host_index = ((cq->host_index + 1) % cq->entry_count);
719 /* if the index wrapped around, toggle the valid bit */
720 if (phba->sli4_hba.pc_sli4_params.cqav && !cq->host_index)
721 cq->qe_valid = (cq->qe_valid) ? 0 : 1;
725 * lpfc_sli4_write_cq_db - write cq DB for entries consumed or arm state.
726 * @phba: the adapter with the CQ
727 * @q: The Completion Queue that the host has completed processing for.
728 * @count: the number of elements that were consumed
729 * @arm: Indicates whether the host wants to arms this CQ.
731 * This routine will notify the HBA, by ringing the doorbell, that the
732 * CQEs have been processed. The @arm parameter specifies whether the
733 * queue should be rearmed when ringing the doorbell.
736 lpfc_sli4_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
737 uint32_t count, bool arm)
739 struct lpfc_register doorbell;
741 /* sanity check on queue memory */
742 if (unlikely(!q || (count == 0 && !arm)))
745 /* ring doorbell for number popped */
748 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
749 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
750 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
751 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
752 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
753 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
754 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
758 * lpfc_sli4_if6_write_cq_db - write cq DB for entries consumed or arm state.
759 * @phba: the adapter with the CQ
760 * @q: The Completion Queue that the host has completed processing for.
761 * @count: the number of elements that were consumed
762 * @arm: Indicates whether the host wants to arms this CQ.
764 * This routine will notify the HBA, by ringing the doorbell, that the
765 * CQEs have been processed. The @arm parameter specifies whether the
766 * queue should be rearmed when ringing the doorbell.
769 lpfc_sli4_if6_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
770 uint32_t count, bool arm)
772 struct lpfc_register doorbell;
774 /* sanity check on queue memory */
775 if (unlikely(!q || (count == 0 && !arm)))
778 /* ring doorbell for number popped */
781 bf_set(lpfc_if6_cq_doorbell_arm, &doorbell, 1);
782 bf_set(lpfc_if6_cq_doorbell_num_released, &doorbell, count);
783 bf_set(lpfc_if6_cq_doorbell_cqid, &doorbell, q->queue_id);
784 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
788 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
790 * This routine will copy the contents of @wqe to the next available entry on
791 * the @q. This function will then ring the Receive Queue Doorbell to signal the
792 * HBA to start processing the Receive Queue Entry. This function returns the
793 * index that the rqe was copied to if successful. If no entries are available
794 * on @q then this function will return -ENOMEM.
795 * The caller is expected to hold the hbalock when calling this routine.
798 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
799 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
801 struct lpfc_rqe *temp_hrqe;
802 struct lpfc_rqe *temp_drqe;
803 struct lpfc_register doorbell;
807 /* sanity check on queue memory */
808 if (unlikely(!hq) || unlikely(!dq))
810 hq_put_index = hq->host_index;
811 dq_put_index = dq->host_index;
812 temp_hrqe = lpfc_sli4_qe(hq, hq_put_index);
813 temp_drqe = lpfc_sli4_qe(dq, dq_put_index);
815 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
817 if (hq_put_index != dq_put_index)
819 /* If the host has not yet processed the next entry then we are done */
820 if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index)
822 lpfc_sli4_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
823 lpfc_sli4_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
825 /* Update the host index to point to the next slot */
826 hq->host_index = ((hq_put_index + 1) % hq->entry_count);
827 dq->host_index = ((dq_put_index + 1) % dq->entry_count);
830 /* Ring The Header Receive Queue Doorbell */
831 if (!(hq->host_index % hq->notify_interval)) {
833 if (hq->db_format == LPFC_DB_RING_FORMAT) {
834 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
835 hq->notify_interval);
836 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
837 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
838 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
839 hq->notify_interval);
840 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
842 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
846 writel(doorbell.word0, hq->db_regaddr);
852 * lpfc_sli4_rq_release - Updates internal hba index for RQ
854 * This routine will update the HBA index of a queue to reflect consumption of
855 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
856 * consumed an entry the host calls this function to update the queue's
857 * internal pointers. This routine returns the number of entries that were
858 * consumed by the HBA.
861 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
863 /* sanity check on queue memory */
864 if (unlikely(!hq) || unlikely(!dq))
867 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
869 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
870 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
875 * lpfc_cmd_iocb - Get next command iocb entry in the ring
876 * @phba: Pointer to HBA context object.
877 * @pring: Pointer to driver SLI ring object.
879 * This function returns pointer to next command iocb entry
880 * in the command ring. The caller must hold hbalock to prevent
881 * other threads consume the next command iocb.
882 * SLI-2/SLI-3 provide different sized iocbs.
884 static inline IOCB_t *
885 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
887 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
888 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
892 * lpfc_resp_iocb - Get next response iocb entry in the ring
893 * @phba: Pointer to HBA context object.
894 * @pring: Pointer to driver SLI ring object.
896 * This function returns pointer to next response iocb entry
897 * in the response ring. The caller must hold hbalock to make sure
898 * that no other thread consume the next response iocb.
899 * SLI-2/SLI-3 provide different sized iocbs.
901 static inline IOCB_t *
902 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
904 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
905 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
909 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
910 * @phba: Pointer to HBA context object.
912 * This function is called with hbalock held. This function
913 * allocates a new driver iocb object from the iocb pool. If the
914 * allocation is successful, it returns pointer to the newly
915 * allocated iocb object else it returns NULL.
918 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
920 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
921 struct lpfc_iocbq * iocbq = NULL;
923 lockdep_assert_held(&phba->hbalock);
925 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
928 if (phba->iocb_cnt > phba->iocb_max)
929 phba->iocb_max = phba->iocb_cnt;
934 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
935 * @phba: Pointer to HBA context object.
936 * @xritag: XRI value.
938 * This function clears the sglq pointer from the array of active
939 * sglq's. The xritag that is passed in is used to index into the
940 * array. Before the xritag can be used it needs to be adjusted
941 * by subtracting the xribase.
943 * Returns sglq ponter = success, NULL = Failure.
946 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
948 struct lpfc_sglq *sglq;
950 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
951 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
956 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
957 * @phba: Pointer to HBA context object.
958 * @xritag: XRI value.
960 * This function returns the sglq pointer from the array of active
961 * sglq's. The xritag that is passed in is used to index into the
962 * array. Before the xritag can be used it needs to be adjusted
963 * by subtracting the xribase.
965 * Returns sglq ponter = success, NULL = Failure.
968 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
970 struct lpfc_sglq *sglq;
972 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
977 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
978 * @phba: Pointer to HBA context object.
979 * @xritag: xri used in this exchange.
980 * @rrq: The RRQ to be cleared.
984 lpfc_clr_rrq_active(struct lpfc_hba *phba,
986 struct lpfc_node_rrq *rrq)
988 struct lpfc_nodelist *ndlp = NULL;
990 /* Lookup did to verify if did is still active on this vport */
992 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
997 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
1000 rrq->rrq_stop_time = 0;
1003 mempool_free(rrq, phba->rrq_pool);
1007 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
1008 * @phba: Pointer to HBA context object.
1010 * This function is called with hbalock held. This function
1011 * Checks if stop_time (ratov from setting rrq active) has
1012 * been reached, if it has and the send_rrq flag is set then
1013 * it will call lpfc_send_rrq. If the send_rrq flag is not set
1014 * then it will just call the routine to clear the rrq and
1015 * free the rrq resource.
1016 * The timer is set to the next rrq that is going to expire before
1017 * leaving the routine.
1021 lpfc_handle_rrq_active(struct lpfc_hba *phba)
1023 struct lpfc_node_rrq *rrq;
1024 struct lpfc_node_rrq *nextrrq;
1025 unsigned long next_time;
1026 unsigned long iflags;
1027 LIST_HEAD(send_rrq);
1029 spin_lock_irqsave(&phba->hbalock, iflags);
1030 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1031 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
1032 list_for_each_entry_safe(rrq, nextrrq,
1033 &phba->active_rrq_list, list) {
1034 if (time_after(jiffies, rrq->rrq_stop_time))
1035 list_move(&rrq->list, &send_rrq);
1036 else if (time_before(rrq->rrq_stop_time, next_time))
1037 next_time = rrq->rrq_stop_time;
1039 spin_unlock_irqrestore(&phba->hbalock, iflags);
1040 if ((!list_empty(&phba->active_rrq_list)) &&
1041 (!(phba->pport->load_flag & FC_UNLOADING)))
1042 mod_timer(&phba->rrq_tmr, next_time);
1043 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
1044 list_del(&rrq->list);
1045 if (!rrq->send_rrq) {
1046 /* this call will free the rrq */
1047 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1048 } else if (lpfc_send_rrq(phba, rrq)) {
1049 /* if we send the rrq then the completion handler
1050 * will clear the bit in the xribitmap.
1052 lpfc_clr_rrq_active(phba, rrq->xritag,
1059 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
1060 * @vport: Pointer to vport context object.
1061 * @xri: The xri used in the exchange.
1062 * @did: The targets DID for this exchange.
1064 * returns NULL = rrq not found in the phba->active_rrq_list.
1065 * rrq = rrq for this xri and target.
1067 struct lpfc_node_rrq *
1068 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
1070 struct lpfc_hba *phba = vport->phba;
1071 struct lpfc_node_rrq *rrq;
1072 struct lpfc_node_rrq *nextrrq;
1073 unsigned long iflags;
1075 if (phba->sli_rev != LPFC_SLI_REV4)
1077 spin_lock_irqsave(&phba->hbalock, iflags);
1078 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
1079 if (rrq->vport == vport && rrq->xritag == xri &&
1080 rrq->nlp_DID == did){
1081 list_del(&rrq->list);
1082 spin_unlock_irqrestore(&phba->hbalock, iflags);
1086 spin_unlock_irqrestore(&phba->hbalock, iflags);
1091 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
1092 * @vport: Pointer to vport context object.
1093 * @ndlp: Pointer to the lpfc_node_list structure.
1094 * If ndlp is NULL Remove all active RRQs for this vport from the
1095 * phba->active_rrq_list and clear the rrq.
1096 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
1099 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1102 struct lpfc_hba *phba = vport->phba;
1103 struct lpfc_node_rrq *rrq;
1104 struct lpfc_node_rrq *nextrrq;
1105 unsigned long iflags;
1106 LIST_HEAD(rrq_list);
1108 if (phba->sli_rev != LPFC_SLI_REV4)
1111 lpfc_sli4_vport_delete_els_xri_aborted(vport);
1112 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
1114 spin_lock_irqsave(&phba->hbalock, iflags);
1115 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
1116 if (rrq->vport != vport)
1119 if (!ndlp || ndlp == lpfc_findnode_did(vport, rrq->nlp_DID))
1120 list_move(&rrq->list, &rrq_list);
1123 spin_unlock_irqrestore(&phba->hbalock, iflags);
1125 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
1126 list_del(&rrq->list);
1127 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1132 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
1133 * @phba: Pointer to HBA context object.
1134 * @ndlp: Targets nodelist pointer for this exchange.
1135 * @xritag: the xri in the bitmap to test.
1137 * This function returns:
1138 * 0 = rrq not active for this xri
1139 * 1 = rrq is valid for this xri.
1142 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1147 if (!ndlp->active_rrqs_xri_bitmap)
1149 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1156 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
1157 * @phba: Pointer to HBA context object.
1158 * @ndlp: nodelist pointer for this target.
1159 * @xritag: xri used in this exchange.
1160 * @rxid: Remote Exchange ID.
1161 * @send_rrq: Flag used to determine if we should send rrq els cmd.
1163 * This function takes the hbalock.
1164 * The active bit is always set in the active rrq xri_bitmap even
1165 * if there is no slot avaiable for the other rrq information.
1167 * returns 0 rrq actived for this xri
1168 * < 0 No memory or invalid ndlp.
1171 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1172 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
1174 unsigned long iflags;
1175 struct lpfc_node_rrq *rrq;
1181 if (!phba->cfg_enable_rrq)
1184 spin_lock_irqsave(&phba->hbalock, iflags);
1185 if (phba->pport->load_flag & FC_UNLOADING) {
1186 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1190 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
1193 if (!ndlp->active_rrqs_xri_bitmap)
1196 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1199 spin_unlock_irqrestore(&phba->hbalock, iflags);
1200 rrq = mempool_alloc(phba->rrq_pool, GFP_ATOMIC);
1202 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1203 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
1204 " DID:0x%x Send:%d\n",
1205 xritag, rxid, ndlp->nlp_DID, send_rrq);
1208 if (phba->cfg_enable_rrq == 1)
1209 rrq->send_rrq = send_rrq;
1212 rrq->xritag = xritag;
1213 rrq->rrq_stop_time = jiffies +
1214 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
1215 rrq->nlp_DID = ndlp->nlp_DID;
1216 rrq->vport = ndlp->vport;
1218 spin_lock_irqsave(&phba->hbalock, iflags);
1219 empty = list_empty(&phba->active_rrq_list);
1220 list_add_tail(&rrq->list, &phba->active_rrq_list);
1221 phba->hba_flag |= HBA_RRQ_ACTIVE;
1223 lpfc_worker_wake_up(phba);
1224 spin_unlock_irqrestore(&phba->hbalock, iflags);
1227 spin_unlock_irqrestore(&phba->hbalock, iflags);
1228 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1229 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
1230 " DID:0x%x Send:%d\n",
1231 xritag, rxid, ndlp->nlp_DID, send_rrq);
1236 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
1237 * @phba: Pointer to HBA context object.
1238 * @piocbq: Pointer to the iocbq.
1240 * The driver calls this function with either the nvme ls ring lock
1241 * or the fc els ring lock held depending on the iocb usage. This function
1242 * gets a new driver sglq object from the sglq list. If the list is not empty
1243 * then it is successful, it returns pointer to the newly allocated sglq
1244 * object else it returns NULL.
1246 static struct lpfc_sglq *
1247 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1249 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
1250 struct lpfc_sglq *sglq = NULL;
1251 struct lpfc_sglq *start_sglq = NULL;
1252 struct lpfc_io_buf *lpfc_cmd;
1253 struct lpfc_nodelist *ndlp;
1254 struct lpfc_sli_ring *pring = NULL;
1257 if (piocbq->iocb_flag & LPFC_IO_NVME_LS)
1258 pring = phba->sli4_hba.nvmels_wq->pring;
1260 pring = lpfc_phba_elsring(phba);
1262 lockdep_assert_held(&pring->ring_lock);
1264 if (piocbq->iocb_flag & LPFC_IO_FCP) {
1265 lpfc_cmd = (struct lpfc_io_buf *) piocbq->context1;
1266 ndlp = lpfc_cmd->rdata->pnode;
1267 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
1268 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
1269 ndlp = piocbq->context_un.ndlp;
1270 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
1271 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
1274 ndlp = piocbq->context_un.ndlp;
1276 ndlp = piocbq->context1;
1279 spin_lock(&phba->sli4_hba.sgl_list_lock);
1280 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
1285 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
1286 test_bit(sglq->sli4_lxritag,
1287 ndlp->active_rrqs_xri_bitmap)) {
1288 /* This xri has an rrq outstanding for this DID.
1289 * put it back in the list and get another xri.
1291 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1293 list_remove_head(lpfc_els_sgl_list, sglq,
1294 struct lpfc_sglq, list);
1295 if (sglq == start_sglq) {
1296 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1304 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1305 sglq->state = SGL_ALLOCATED;
1307 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1312 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
1313 * @phba: Pointer to HBA context object.
1314 * @piocbq: Pointer to the iocbq.
1316 * This function is called with the sgl_list lock held. This function
1317 * gets a new driver sglq object from the sglq list. If the
1318 * list is not empty then it is successful, it returns pointer to the newly
1319 * allocated sglq object else it returns NULL.
1322 __lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1324 struct list_head *lpfc_nvmet_sgl_list;
1325 struct lpfc_sglq *sglq = NULL;
1327 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1329 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1331 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1334 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1335 sglq->state = SGL_ALLOCATED;
1340 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
1341 * @phba: Pointer to HBA context object.
1343 * This function is called with no lock held. This function
1344 * allocates a new driver iocb object from the iocb pool. If the
1345 * allocation is successful, it returns pointer to the newly
1346 * allocated iocb object else it returns NULL.
1349 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1351 struct lpfc_iocbq * iocbq = NULL;
1352 unsigned long iflags;
1354 spin_lock_irqsave(&phba->hbalock, iflags);
1355 iocbq = __lpfc_sli_get_iocbq(phba);
1356 spin_unlock_irqrestore(&phba->hbalock, iflags);
1361 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1362 * @phba: Pointer to HBA context object.
1363 * @iocbq: Pointer to driver iocb object.
1365 * This function is called to release the driver iocb object
1366 * to the iocb pool. The iotag in the iocb object
1367 * does not change for each use of the iocb object. This function
1368 * clears all other fields of the iocb object when it is freed.
1369 * The sqlq structure that holds the xritag and phys and virtual
1370 * mappings for the scatter gather list is retrieved from the
1371 * active array of sglq. The get of the sglq pointer also clears
1372 * the entry in the array. If the status of the IO indiactes that
1373 * this IO was aborted then the sglq entry it put on the
1374 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1375 * IO has good status or fails for any other reason then the sglq
1376 * entry is added to the free list (lpfc_els_sgl_list). The hbalock is
1377 * asserted held in the code path calling this routine.
1380 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1382 struct lpfc_sglq *sglq;
1383 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1384 unsigned long iflag = 0;
1385 struct lpfc_sli_ring *pring;
1387 if (iocbq->sli4_xritag == NO_XRI)
1390 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1394 if (iocbq->iocb_flag & LPFC_IO_NVMET) {
1395 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1397 sglq->state = SGL_FREED;
1399 list_add_tail(&sglq->list,
1400 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1401 spin_unlock_irqrestore(
1402 &phba->sli4_hba.sgl_list_lock, iflag);
1406 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1407 (sglq->state != SGL_XRI_ABORTED)) {
1408 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1411 /* Check if we can get a reference on ndlp */
1412 if (sglq->ndlp && !lpfc_nlp_get(sglq->ndlp))
1415 list_add(&sglq->list,
1416 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1417 spin_unlock_irqrestore(
1418 &phba->sli4_hba.sgl_list_lock, iflag);
1420 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1422 sglq->state = SGL_FREED;
1424 list_add_tail(&sglq->list,
1425 &phba->sli4_hba.lpfc_els_sgl_list);
1426 spin_unlock_irqrestore(
1427 &phba->sli4_hba.sgl_list_lock, iflag);
1428 pring = lpfc_phba_elsring(phba);
1429 /* Check if TXQ queue needs to be serviced */
1430 if (pring && (!list_empty(&pring->txq)))
1431 lpfc_worker_wake_up(phba);
1437 * Clean all volatile data fields, preserve iotag and node struct.
1439 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1440 iocbq->sli4_lxritag = NO_XRI;
1441 iocbq->sli4_xritag = NO_XRI;
1442 iocbq->iocb_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET |
1444 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1449 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1450 * @phba: Pointer to HBA context object.
1451 * @iocbq: Pointer to driver iocb object.
1453 * This function is called to release the driver iocb object to the
1454 * iocb pool. The iotag in the iocb object does not change for each
1455 * use of the iocb object. This function clears all other fields of
1456 * the iocb object when it is freed. The hbalock is asserted held in
1457 * the code path calling this routine.
1460 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1462 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1465 * Clean all volatile data fields, preserve iotag and node struct.
1467 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1468 iocbq->sli4_xritag = NO_XRI;
1469 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1473 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1474 * @phba: Pointer to HBA context object.
1475 * @iocbq: Pointer to driver iocb object.
1477 * This function is called with hbalock held to release driver
1478 * iocb object to the iocb pool. The iotag in the iocb object
1479 * does not change for each use of the iocb object. This function
1480 * clears all other fields of the iocb object when it is freed.
1483 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1485 lockdep_assert_held(&phba->hbalock);
1487 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1492 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1493 * @phba: Pointer to HBA context object.
1494 * @iocbq: Pointer to driver iocb object.
1496 * This function is called with no lock held to release the iocb to
1500 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1502 unsigned long iflags;
1505 * Clean all volatile data fields, preserve iotag and node struct.
1507 spin_lock_irqsave(&phba->hbalock, iflags);
1508 __lpfc_sli_release_iocbq(phba, iocbq);
1509 spin_unlock_irqrestore(&phba->hbalock, iflags);
1513 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1514 * @phba: Pointer to HBA context object.
1515 * @iocblist: List of IOCBs.
1516 * @ulpstatus: ULP status in IOCB command field.
1517 * @ulpWord4: ULP word-4 in IOCB command field.
1519 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1520 * on the list by invoking the complete callback function associated with the
1521 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1525 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1526 uint32_t ulpstatus, uint32_t ulpWord4)
1528 struct lpfc_iocbq *piocb;
1530 while (!list_empty(iocblist)) {
1531 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1532 if (piocb->wqe_cmpl) {
1533 if (piocb->iocb_flag & LPFC_IO_NVME)
1534 lpfc_nvme_cancel_iocb(phba, piocb,
1535 ulpstatus, ulpWord4);
1537 lpfc_sli_release_iocbq(phba, piocb);
1539 } else if (piocb->iocb_cmpl) {
1540 piocb->iocb.ulpStatus = ulpstatus;
1541 piocb->iocb.un.ulpWord[4] = ulpWord4;
1542 (piocb->iocb_cmpl) (phba, piocb, piocb);
1544 lpfc_sli_release_iocbq(phba, piocb);
1551 * lpfc_sli_iocb_cmd_type - Get the iocb type
1552 * @iocb_cmnd: iocb command code.
1554 * This function is called by ring event handler function to get the iocb type.
1555 * This function translates the iocb command to an iocb command type used to
1556 * decide the final disposition of each completed IOCB.
1557 * The function returns
1558 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1559 * LPFC_SOL_IOCB if it is a solicited iocb completion
1560 * LPFC_ABORT_IOCB if it is an abort iocb
1561 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1563 * The caller is not required to hold any lock.
1565 static lpfc_iocb_type
1566 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1568 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1570 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1573 switch (iocb_cmnd) {
1574 case CMD_XMIT_SEQUENCE_CR:
1575 case CMD_XMIT_SEQUENCE_CX:
1576 case CMD_XMIT_BCAST_CN:
1577 case CMD_XMIT_BCAST_CX:
1578 case CMD_ELS_REQUEST_CR:
1579 case CMD_ELS_REQUEST_CX:
1580 case CMD_CREATE_XRI_CR:
1581 case CMD_CREATE_XRI_CX:
1582 case CMD_GET_RPI_CN:
1583 case CMD_XMIT_ELS_RSP_CX:
1584 case CMD_GET_RPI_CR:
1585 case CMD_FCP_IWRITE_CR:
1586 case CMD_FCP_IWRITE_CX:
1587 case CMD_FCP_IREAD_CR:
1588 case CMD_FCP_IREAD_CX:
1589 case CMD_FCP_ICMND_CR:
1590 case CMD_FCP_ICMND_CX:
1591 case CMD_FCP_TSEND_CX:
1592 case CMD_FCP_TRSP_CX:
1593 case CMD_FCP_TRECEIVE_CX:
1594 case CMD_FCP_AUTO_TRSP_CX:
1595 case CMD_ADAPTER_MSG:
1596 case CMD_ADAPTER_DUMP:
1597 case CMD_XMIT_SEQUENCE64_CR:
1598 case CMD_XMIT_SEQUENCE64_CX:
1599 case CMD_XMIT_BCAST64_CN:
1600 case CMD_XMIT_BCAST64_CX:
1601 case CMD_ELS_REQUEST64_CR:
1602 case CMD_ELS_REQUEST64_CX:
1603 case CMD_FCP_IWRITE64_CR:
1604 case CMD_FCP_IWRITE64_CX:
1605 case CMD_FCP_IREAD64_CR:
1606 case CMD_FCP_IREAD64_CX:
1607 case CMD_FCP_ICMND64_CR:
1608 case CMD_FCP_ICMND64_CX:
1609 case CMD_FCP_TSEND64_CX:
1610 case CMD_FCP_TRSP64_CX:
1611 case CMD_FCP_TRECEIVE64_CX:
1612 case CMD_GEN_REQUEST64_CR:
1613 case CMD_GEN_REQUEST64_CX:
1614 case CMD_XMIT_ELS_RSP64_CX:
1615 case DSSCMD_IWRITE64_CR:
1616 case DSSCMD_IWRITE64_CX:
1617 case DSSCMD_IREAD64_CR:
1618 case DSSCMD_IREAD64_CX:
1619 case CMD_SEND_FRAME:
1620 type = LPFC_SOL_IOCB;
1622 case CMD_ABORT_XRI_CN:
1623 case CMD_ABORT_XRI_CX:
1624 case CMD_CLOSE_XRI_CN:
1625 case CMD_CLOSE_XRI_CX:
1626 case CMD_XRI_ABORTED_CX:
1627 case CMD_ABORT_MXRI64_CN:
1628 case CMD_XMIT_BLS_RSP64_CX:
1629 type = LPFC_ABORT_IOCB;
1631 case CMD_RCV_SEQUENCE_CX:
1632 case CMD_RCV_ELS_REQ_CX:
1633 case CMD_RCV_SEQUENCE64_CX:
1634 case CMD_RCV_ELS_REQ64_CX:
1635 case CMD_ASYNC_STATUS:
1636 case CMD_IOCB_RCV_SEQ64_CX:
1637 case CMD_IOCB_RCV_ELS64_CX:
1638 case CMD_IOCB_RCV_CONT64_CX:
1639 case CMD_IOCB_RET_XRI64_CX:
1640 type = LPFC_UNSOL_IOCB;
1642 case CMD_IOCB_XMIT_MSEQ64_CR:
1643 case CMD_IOCB_XMIT_MSEQ64_CX:
1644 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1645 case CMD_IOCB_RCV_ELS_LIST64_CX:
1646 case CMD_IOCB_CLOSE_EXTENDED_CN:
1647 case CMD_IOCB_ABORT_EXTENDED_CN:
1648 case CMD_IOCB_RET_HBQE64_CN:
1649 case CMD_IOCB_FCP_IBIDIR64_CR:
1650 case CMD_IOCB_FCP_IBIDIR64_CX:
1651 case CMD_IOCB_FCP_ITASKMGT64_CX:
1652 case CMD_IOCB_LOGENTRY_CN:
1653 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1654 printk("%s - Unhandled SLI-3 Command x%x\n",
1655 __func__, iocb_cmnd);
1656 type = LPFC_UNKNOWN_IOCB;
1659 type = LPFC_UNKNOWN_IOCB;
1667 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1668 * @phba: Pointer to HBA context object.
1670 * This function is called from SLI initialization code
1671 * to configure every ring of the HBA's SLI interface. The
1672 * caller is not required to hold any lock. This function issues
1673 * a config_ring mailbox command for each ring.
1674 * This function returns zero if successful else returns a negative
1678 lpfc_sli_ring_map(struct lpfc_hba *phba)
1680 struct lpfc_sli *psli = &phba->sli;
1685 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1689 phba->link_state = LPFC_INIT_MBX_CMDS;
1690 for (i = 0; i < psli->num_rings; i++) {
1691 lpfc_config_ring(phba, i, pmb);
1692 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1693 if (rc != MBX_SUCCESS) {
1694 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1695 "0446 Adapter failed to init (%d), "
1696 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1698 rc, pmbox->mbxCommand,
1699 pmbox->mbxStatus, i);
1700 phba->link_state = LPFC_HBA_ERROR;
1705 mempool_free(pmb, phba->mbox_mem_pool);
1710 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1711 * @phba: Pointer to HBA context object.
1712 * @pring: Pointer to driver SLI ring object.
1713 * @piocb: Pointer to the driver iocb object.
1715 * The driver calls this function with the hbalock held for SLI3 ports or
1716 * the ring lock held for SLI4 ports. The function adds the
1717 * new iocb to txcmplq of the given ring. This function always returns
1718 * 0. If this function is called for ELS ring, this function checks if
1719 * there is a vport associated with the ELS command. This function also
1720 * starts els_tmofunc timer if this is an ELS command.
1723 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1724 struct lpfc_iocbq *piocb)
1726 if (phba->sli_rev == LPFC_SLI_REV4)
1727 lockdep_assert_held(&pring->ring_lock);
1729 lockdep_assert_held(&phba->hbalock);
1733 list_add_tail(&piocb->list, &pring->txcmplq);
1734 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1735 pring->txcmplq_cnt++;
1737 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1738 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1739 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1740 BUG_ON(!piocb->vport);
1741 if (!(piocb->vport->load_flag & FC_UNLOADING))
1742 mod_timer(&piocb->vport->els_tmofunc,
1744 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1751 * lpfc_sli_ringtx_get - Get first element of the txq
1752 * @phba: Pointer to HBA context object.
1753 * @pring: Pointer to driver SLI ring object.
1755 * This function is called with hbalock held to get next
1756 * iocb in txq of the given ring. If there is any iocb in
1757 * the txq, the function returns first iocb in the list after
1758 * removing the iocb from the list, else it returns NULL.
1761 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1763 struct lpfc_iocbq *cmd_iocb;
1765 lockdep_assert_held(&phba->hbalock);
1767 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1772 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1773 * @phba: Pointer to HBA context object.
1774 * @pring: Pointer to driver SLI ring object.
1776 * This function is called with hbalock held and the caller must post the
1777 * iocb without releasing the lock. If the caller releases the lock,
1778 * iocb slot returned by the function is not guaranteed to be available.
1779 * The function returns pointer to the next available iocb slot if there
1780 * is available slot in the ring, else it returns NULL.
1781 * If the get index of the ring is ahead of the put index, the function
1782 * will post an error attention event to the worker thread to take the
1783 * HBA to offline state.
1786 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1788 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1789 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1791 lockdep_assert_held(&phba->hbalock);
1793 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1794 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1795 pring->sli.sli3.next_cmdidx = 0;
1797 if (unlikely(pring->sli.sli3.local_getidx ==
1798 pring->sli.sli3.next_cmdidx)) {
1800 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1802 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1803 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1804 "0315 Ring %d issue: portCmdGet %d "
1805 "is bigger than cmd ring %d\n",
1807 pring->sli.sli3.local_getidx,
1810 phba->link_state = LPFC_HBA_ERROR;
1812 * All error attention handlers are posted to
1815 phba->work_ha |= HA_ERATT;
1816 phba->work_hs = HS_FFER3;
1818 lpfc_worker_wake_up(phba);
1823 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1827 return lpfc_cmd_iocb(phba, pring);
1831 * lpfc_sli_next_iotag - Get an iotag for the iocb
1832 * @phba: Pointer to HBA context object.
1833 * @iocbq: Pointer to driver iocb object.
1835 * This function gets an iotag for the iocb. If there is no unused iotag and
1836 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1837 * array and assigns a new iotag.
1838 * The function returns the allocated iotag if successful, else returns zero.
1839 * Zero is not a valid iotag.
1840 * The caller is not required to hold any lock.
1843 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1845 struct lpfc_iocbq **new_arr;
1846 struct lpfc_iocbq **old_arr;
1848 struct lpfc_sli *psli = &phba->sli;
1851 spin_lock_irq(&phba->hbalock);
1852 iotag = psli->last_iotag;
1853 if(++iotag < psli->iocbq_lookup_len) {
1854 psli->last_iotag = iotag;
1855 psli->iocbq_lookup[iotag] = iocbq;
1856 spin_unlock_irq(&phba->hbalock);
1857 iocbq->iotag = iotag;
1859 } else if (psli->iocbq_lookup_len < (0xffff
1860 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1861 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1862 spin_unlock_irq(&phba->hbalock);
1863 new_arr = kcalloc(new_len, sizeof(struct lpfc_iocbq *),
1866 spin_lock_irq(&phba->hbalock);
1867 old_arr = psli->iocbq_lookup;
1868 if (new_len <= psli->iocbq_lookup_len) {
1869 /* highly unprobable case */
1871 iotag = psli->last_iotag;
1872 if(++iotag < psli->iocbq_lookup_len) {
1873 psli->last_iotag = iotag;
1874 psli->iocbq_lookup[iotag] = iocbq;
1875 spin_unlock_irq(&phba->hbalock);
1876 iocbq->iotag = iotag;
1879 spin_unlock_irq(&phba->hbalock);
1882 if (psli->iocbq_lookup)
1883 memcpy(new_arr, old_arr,
1884 ((psli->last_iotag + 1) *
1885 sizeof (struct lpfc_iocbq *)));
1886 psli->iocbq_lookup = new_arr;
1887 psli->iocbq_lookup_len = new_len;
1888 psli->last_iotag = iotag;
1889 psli->iocbq_lookup[iotag] = iocbq;
1890 spin_unlock_irq(&phba->hbalock);
1891 iocbq->iotag = iotag;
1896 spin_unlock_irq(&phba->hbalock);
1898 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1899 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1906 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1907 * @phba: Pointer to HBA context object.
1908 * @pring: Pointer to driver SLI ring object.
1909 * @iocb: Pointer to iocb slot in the ring.
1910 * @nextiocb: Pointer to driver iocb object which need to be
1911 * posted to firmware.
1913 * This function is called to post a new iocb to the firmware. This
1914 * function copies the new iocb to ring iocb slot and updates the
1915 * ring pointers. It adds the new iocb to txcmplq if there is
1916 * a completion call back for this iocb else the function will free the
1917 * iocb object. The hbalock is asserted held in the code path calling
1921 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1922 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1927 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1930 if (pring->ringno == LPFC_ELS_RING) {
1931 lpfc_debugfs_slow_ring_trc(phba,
1932 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1933 *(((uint32_t *) &nextiocb->iocb) + 4),
1934 *(((uint32_t *) &nextiocb->iocb) + 6),
1935 *(((uint32_t *) &nextiocb->iocb) + 7));
1939 * Issue iocb command to adapter
1941 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1943 pring->stats.iocb_cmd++;
1946 * If there is no completion routine to call, we can release the
1947 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1948 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1950 if (nextiocb->iocb_cmpl)
1951 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1953 __lpfc_sli_release_iocbq(phba, nextiocb);
1956 * Let the HBA know what IOCB slot will be the next one the
1957 * driver will put a command into.
1959 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1960 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1964 * lpfc_sli_update_full_ring - Update the chip attention register
1965 * @phba: Pointer to HBA context object.
1966 * @pring: Pointer to driver SLI ring object.
1968 * The caller is not required to hold any lock for calling this function.
1969 * This function updates the chip attention bits for the ring to inform firmware
1970 * that there are pending work to be done for this ring and requests an
1971 * interrupt when there is space available in the ring. This function is
1972 * called when the driver is unable to post more iocbs to the ring due
1973 * to unavailability of space in the ring.
1976 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1978 int ringno = pring->ringno;
1980 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1985 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1986 * The HBA will tell us when an IOCB entry is available.
1988 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1989 readl(phba->CAregaddr); /* flush */
1991 pring->stats.iocb_cmd_full++;
1995 * lpfc_sli_update_ring - Update chip attention register
1996 * @phba: Pointer to HBA context object.
1997 * @pring: Pointer to driver SLI ring object.
1999 * This function updates the chip attention register bit for the
2000 * given ring to inform HBA that there is more work to be done
2001 * in this ring. The caller is not required to hold any lock.
2004 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2006 int ringno = pring->ringno;
2009 * Tell the HBA that there is work to do in this ring.
2011 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
2013 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
2014 readl(phba->CAregaddr); /* flush */
2019 * lpfc_sli_resume_iocb - Process iocbs in the txq
2020 * @phba: Pointer to HBA context object.
2021 * @pring: Pointer to driver SLI ring object.
2023 * This function is called with hbalock held to post pending iocbs
2024 * in the txq to the firmware. This function is called when driver
2025 * detects space available in the ring.
2028 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2031 struct lpfc_iocbq *nextiocb;
2033 lockdep_assert_held(&phba->hbalock);
2037 * (a) there is anything on the txq to send
2039 * (c) link attention events can be processed (fcp ring only)
2040 * (d) IOCB processing is not blocked by the outstanding mbox command.
2043 if (lpfc_is_link_up(phba) &&
2044 (!list_empty(&pring->txq)) &&
2045 (pring->ringno != LPFC_FCP_RING ||
2046 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
2048 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
2049 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
2050 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
2053 lpfc_sli_update_ring(phba, pring);
2055 lpfc_sli_update_full_ring(phba, pring);
2062 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
2063 * @phba: Pointer to HBA context object.
2064 * @hbqno: HBQ number.
2066 * This function is called with hbalock held to get the next
2067 * available slot for the given HBQ. If there is free slot
2068 * available for the HBQ it will return pointer to the next available
2069 * HBQ entry else it will return NULL.
2071 static struct lpfc_hbq_entry *
2072 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
2074 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2076 lockdep_assert_held(&phba->hbalock);
2078 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
2079 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
2080 hbqp->next_hbqPutIdx = 0;
2082 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
2083 uint32_t raw_index = phba->hbq_get[hbqno];
2084 uint32_t getidx = le32_to_cpu(raw_index);
2086 hbqp->local_hbqGetIdx = getidx;
2088 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
2089 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2090 "1802 HBQ %d: local_hbqGetIdx "
2091 "%u is > than hbqp->entry_count %u\n",
2092 hbqno, hbqp->local_hbqGetIdx,
2095 phba->link_state = LPFC_HBA_ERROR;
2099 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
2103 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
2108 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
2109 * @phba: Pointer to HBA context object.
2111 * This function is called with no lock held to free all the
2112 * hbq buffers while uninitializing the SLI interface. It also
2113 * frees the HBQ buffers returned by the firmware but not yet
2114 * processed by the upper layers.
2117 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
2119 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
2120 struct hbq_dmabuf *hbq_buf;
2121 unsigned long flags;
2124 hbq_count = lpfc_sli_hbq_count();
2125 /* Return all memory used by all HBQs */
2126 spin_lock_irqsave(&phba->hbalock, flags);
2127 for (i = 0; i < hbq_count; ++i) {
2128 list_for_each_entry_safe(dmabuf, next_dmabuf,
2129 &phba->hbqs[i].hbq_buffer_list, list) {
2130 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
2131 list_del(&hbq_buf->dbuf.list);
2132 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
2134 phba->hbqs[i].buffer_count = 0;
2137 /* Mark the HBQs not in use */
2138 phba->hbq_in_use = 0;
2139 spin_unlock_irqrestore(&phba->hbalock, flags);
2143 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
2144 * @phba: Pointer to HBA context object.
2145 * @hbqno: HBQ number.
2146 * @hbq_buf: Pointer to HBQ buffer.
2148 * This function is called with the hbalock held to post a
2149 * hbq buffer to the firmware. If the function finds an empty
2150 * slot in the HBQ, it will post the buffer. The function will return
2151 * pointer to the hbq entry if it successfully post the buffer
2152 * else it will return NULL.
2155 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
2156 struct hbq_dmabuf *hbq_buf)
2158 lockdep_assert_held(&phba->hbalock);
2159 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
2163 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
2164 * @phba: Pointer to HBA context object.
2165 * @hbqno: HBQ number.
2166 * @hbq_buf: Pointer to HBQ buffer.
2168 * This function is called with the hbalock held to post a hbq buffer to the
2169 * firmware. If the function finds an empty slot in the HBQ, it will post the
2170 * buffer and place it on the hbq_buffer_list. The function will return zero if
2171 * it successfully post the buffer else it will return an error.
2174 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
2175 struct hbq_dmabuf *hbq_buf)
2177 struct lpfc_hbq_entry *hbqe;
2178 dma_addr_t physaddr = hbq_buf->dbuf.phys;
2180 lockdep_assert_held(&phba->hbalock);
2181 /* Get next HBQ entry slot to use */
2182 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
2184 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2186 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
2187 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
2188 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
2189 hbqe->bde.tus.f.bdeFlags = 0;
2190 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
2191 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
2193 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
2194 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
2196 readl(phba->hbq_put + hbqno);
2197 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
2204 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
2205 * @phba: Pointer to HBA context object.
2206 * @hbqno: HBQ number.
2207 * @hbq_buf: Pointer to HBQ buffer.
2209 * This function is called with the hbalock held to post an RQE to the SLI4
2210 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
2211 * the hbq_buffer_list and return zero, otherwise it will return an error.
2214 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
2215 struct hbq_dmabuf *hbq_buf)
2218 struct lpfc_rqe hrqe;
2219 struct lpfc_rqe drqe;
2220 struct lpfc_queue *hrq;
2221 struct lpfc_queue *drq;
2223 if (hbqno != LPFC_ELS_HBQ)
2225 hrq = phba->sli4_hba.hdr_rq;
2226 drq = phba->sli4_hba.dat_rq;
2228 lockdep_assert_held(&phba->hbalock);
2229 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
2230 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
2231 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
2232 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
2233 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
2236 hbq_buf->tag = (rc | (hbqno << 16));
2237 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
2241 /* HBQ for ELS and CT traffic. */
2242 static struct lpfc_hbq_init lpfc_els_hbq = {
2247 .ring_mask = (1 << LPFC_ELS_RING),
2254 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
2259 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
2260 * @phba: Pointer to HBA context object.
2261 * @hbqno: HBQ number.
2262 * @count: Number of HBQ buffers to be posted.
2264 * This function is called with no lock held to post more hbq buffers to the
2265 * given HBQ. The function returns the number of HBQ buffers successfully
2269 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
2271 uint32_t i, posted = 0;
2272 unsigned long flags;
2273 struct hbq_dmabuf *hbq_buffer;
2274 LIST_HEAD(hbq_buf_list);
2275 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
2278 if ((phba->hbqs[hbqno].buffer_count + count) >
2279 lpfc_hbq_defs[hbqno]->entry_count)
2280 count = lpfc_hbq_defs[hbqno]->entry_count -
2281 phba->hbqs[hbqno].buffer_count;
2284 /* Allocate HBQ entries */
2285 for (i = 0; i < count; i++) {
2286 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
2289 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
2291 /* Check whether HBQ is still in use */
2292 spin_lock_irqsave(&phba->hbalock, flags);
2293 if (!phba->hbq_in_use)
2295 while (!list_empty(&hbq_buf_list)) {
2296 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2298 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
2300 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
2301 phba->hbqs[hbqno].buffer_count++;
2304 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2306 spin_unlock_irqrestore(&phba->hbalock, flags);
2309 spin_unlock_irqrestore(&phba->hbalock, flags);
2310 while (!list_empty(&hbq_buf_list)) {
2311 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2313 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2319 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
2320 * @phba: Pointer to HBA context object.
2323 * This function posts more buffers to the HBQ. This function
2324 * is called with no lock held. The function returns the number of HBQ entries
2325 * successfully allocated.
2328 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
2330 if (phba->sli_rev == LPFC_SLI_REV4)
2333 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2334 lpfc_hbq_defs[qno]->add_count);
2338 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
2339 * @phba: Pointer to HBA context object.
2340 * @qno: HBQ queue number.
2342 * This function is called from SLI initialization code path with
2343 * no lock held to post initial HBQ buffers to firmware. The
2344 * function returns the number of HBQ entries successfully allocated.
2347 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2349 if (phba->sli_rev == LPFC_SLI_REV4)
2350 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2351 lpfc_hbq_defs[qno]->entry_count);
2353 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2354 lpfc_hbq_defs[qno]->init_count);
2358 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2360 * This function removes the first hbq buffer on an hbq list and returns a
2361 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2363 static struct hbq_dmabuf *
2364 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2366 struct lpfc_dmabuf *d_buf;
2368 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2371 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2375 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2376 * @phba: Pointer to HBA context object.
2379 * This function removes the first RQ buffer on an RQ buffer list and returns a
2380 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2382 static struct rqb_dmabuf *
2383 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2385 struct lpfc_dmabuf *h_buf;
2386 struct lpfc_rqb *rqbp;
2389 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2390 struct lpfc_dmabuf, list);
2393 rqbp->buffer_count--;
2394 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2398 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2399 * @phba: Pointer to HBA context object.
2400 * @tag: Tag of the hbq buffer.
2402 * This function searches for the hbq buffer associated with the given tag in
2403 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2404 * otherwise it returns NULL.
2406 static struct hbq_dmabuf *
2407 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2409 struct lpfc_dmabuf *d_buf;
2410 struct hbq_dmabuf *hbq_buf;
2414 if (hbqno >= LPFC_MAX_HBQS)
2417 spin_lock_irq(&phba->hbalock);
2418 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2419 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2420 if (hbq_buf->tag == tag) {
2421 spin_unlock_irq(&phba->hbalock);
2425 spin_unlock_irq(&phba->hbalock);
2426 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2427 "1803 Bad hbq tag. Data: x%x x%x\n",
2428 tag, phba->hbqs[tag >> 16].buffer_count);
2433 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2434 * @phba: Pointer to HBA context object.
2435 * @hbq_buffer: Pointer to HBQ buffer.
2437 * This function is called with hbalock. This function gives back
2438 * the hbq buffer to firmware. If the HBQ does not have space to
2439 * post the buffer, it will free the buffer.
2442 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2447 hbqno = hbq_buffer->tag >> 16;
2448 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2449 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2454 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2455 * @mbxCommand: mailbox command code.
2457 * This function is called by the mailbox event handler function to verify
2458 * that the completed mailbox command is a legitimate mailbox command. If the
2459 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2460 * and the mailbox event handler will take the HBA offline.
2463 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2467 switch (mbxCommand) {
2471 case MBX_WRITE_VPARMS:
2472 case MBX_RUN_BIU_DIAG:
2475 case MBX_CONFIG_LINK:
2476 case MBX_CONFIG_RING:
2477 case MBX_RESET_RING:
2478 case MBX_READ_CONFIG:
2479 case MBX_READ_RCONFIG:
2480 case MBX_READ_SPARM:
2481 case MBX_READ_STATUS:
2485 case MBX_READ_LNK_STAT:
2487 case MBX_UNREG_LOGIN:
2489 case MBX_DUMP_MEMORY:
2490 case MBX_DUMP_CONTEXT:
2493 case MBX_UPDATE_CFG:
2495 case MBX_DEL_LD_ENTRY:
2496 case MBX_RUN_PROGRAM:
2498 case MBX_SET_VARIABLE:
2499 case MBX_UNREG_D_ID:
2500 case MBX_KILL_BOARD:
2501 case MBX_CONFIG_FARP:
2504 case MBX_RUN_BIU_DIAG64:
2505 case MBX_CONFIG_PORT:
2506 case MBX_READ_SPARM64:
2507 case MBX_READ_RPI64:
2508 case MBX_REG_LOGIN64:
2509 case MBX_READ_TOPOLOGY:
2512 case MBX_LOAD_EXP_ROM:
2513 case MBX_ASYNCEVT_ENABLE:
2517 case MBX_PORT_CAPABILITIES:
2518 case MBX_PORT_IOV_CONTROL:
2519 case MBX_SLI4_CONFIG:
2520 case MBX_SLI4_REQ_FTRS:
2522 case MBX_UNREG_FCFI:
2527 case MBX_RESUME_RPI:
2528 case MBX_READ_EVENT_LOG_STATUS:
2529 case MBX_READ_EVENT_LOG:
2530 case MBX_SECURITY_MGMT:
2532 case MBX_ACCESS_VDATA:
2543 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2544 * @phba: Pointer to HBA context object.
2545 * @pmboxq: Pointer to mailbox command.
2547 * This is completion handler function for mailbox commands issued from
2548 * lpfc_sli_issue_mbox_wait function. This function is called by the
2549 * mailbox event handler function with no lock held. This function
2550 * will wake up thread waiting on the wait queue pointed by context1
2554 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2556 unsigned long drvr_flag;
2557 struct completion *pmbox_done;
2560 * If pmbox_done is empty, the driver thread gave up waiting and
2561 * continued running.
2563 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2564 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2565 pmbox_done = (struct completion *)pmboxq->context3;
2567 complete(pmbox_done);
2568 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2573 __lpfc_sli_rpi_release(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2575 unsigned long iflags;
2577 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
2578 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
2579 spin_lock_irqsave(&ndlp->lock, iflags);
2580 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
2581 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
2582 spin_unlock_irqrestore(&ndlp->lock, iflags);
2584 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2588 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2589 * @phba: Pointer to HBA context object.
2590 * @pmb: Pointer to mailbox object.
2592 * This function is the default mailbox completion handler. It
2593 * frees the memory resources associated with the completed mailbox
2594 * command. If the completed command is a REG_LOGIN mailbox command,
2595 * this function will issue a UREG_LOGIN to re-claim the RPI.
2598 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2600 struct lpfc_vport *vport = pmb->vport;
2601 struct lpfc_dmabuf *mp;
2602 struct lpfc_nodelist *ndlp;
2603 struct Scsi_Host *shost;
2607 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
2610 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2615 * If a REG_LOGIN succeeded after node is destroyed or node
2616 * is in re-discovery driver need to cleanup the RPI.
2618 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2619 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2620 !pmb->u.mb.mbxStatus) {
2621 rpi = pmb->u.mb.un.varWords[0];
2622 vpi = pmb->u.mb.un.varRegLogin.vpi;
2623 if (phba->sli_rev == LPFC_SLI_REV4)
2624 vpi -= phba->sli4_hba.max_cfg_param.vpi_base;
2625 lpfc_unreg_login(phba, vpi, rpi, pmb);
2627 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2628 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2629 if (rc != MBX_NOT_FINISHED)
2633 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2634 !(phba->pport->load_flag & FC_UNLOADING) &&
2635 !pmb->u.mb.mbxStatus) {
2636 shost = lpfc_shost_from_vport(vport);
2637 spin_lock_irq(shost->host_lock);
2638 vport->vpi_state |= LPFC_VPI_REGISTERED;
2639 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2640 spin_unlock_irq(shost->host_lock);
2643 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2644 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2646 pmb->ctx_buf = NULL;
2647 pmb->ctx_ndlp = NULL;
2650 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2651 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2653 /* Check to see if there are any deferred events to process */
2657 KERN_INFO, LOG_MBOX | LOG_DISCOVERY,
2658 "1438 UNREG cmpl deferred mbox x%x "
2659 "on NPort x%x Data: x%x x%x x%px x%x x%x\n",
2660 ndlp->nlp_rpi, ndlp->nlp_DID,
2661 ndlp->nlp_flag, ndlp->nlp_defer_did,
2662 ndlp, vport->load_flag, kref_read(&ndlp->kref));
2664 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2665 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
2666 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2667 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
2668 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2670 __lpfc_sli_rpi_release(vport, ndlp);
2673 /* The unreg_login mailbox is complete and had a
2674 * reference that has to be released. The PLOGI
2678 pmb->ctx_ndlp = NULL;
2682 /* Check security permission status on INIT_LINK mailbox command */
2683 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2684 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2685 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2686 "2860 SLI authentication is required "
2687 "for INIT_LINK but has not done yet\n");
2689 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2690 lpfc_sli4_mbox_cmd_free(phba, pmb);
2692 mempool_free(pmb, phba->mbox_mem_pool);
2695 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2696 * @phba: Pointer to HBA context object.
2697 * @pmb: Pointer to mailbox object.
2699 * This function is the unreg rpi mailbox completion handler. It
2700 * frees the memory resources associated with the completed mailbox
2701 * command. An additional reference is put on the ndlp to prevent
2702 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2703 * the unreg mailbox command completes, this routine puts the
2708 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2710 struct lpfc_vport *vport = pmb->vport;
2711 struct lpfc_nodelist *ndlp;
2713 ndlp = pmb->ctx_ndlp;
2714 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2715 if (phba->sli_rev == LPFC_SLI_REV4 &&
2716 (bf_get(lpfc_sli_intf_if_type,
2717 &phba->sli4_hba.sli_intf) >=
2718 LPFC_SLI_INTF_IF_TYPE_2)) {
2721 vport, KERN_INFO, LOG_MBOX | LOG_SLI,
2722 "0010 UNREG_LOGIN vpi:%x "
2723 "rpi:%x DID:%x defer x%x flg x%x "
2725 vport->vpi, ndlp->nlp_rpi,
2726 ndlp->nlp_DID, ndlp->nlp_defer_did,
2729 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2731 /* Check to see if there are any deferred
2734 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2735 (ndlp->nlp_defer_did !=
2736 NLP_EVT_NOTHING_PENDING)) {
2738 vport, KERN_INFO, LOG_DISCOVERY,
2739 "4111 UNREG cmpl deferred "
2741 "NPort x%x Data: x%x x%px\n",
2742 ndlp->nlp_rpi, ndlp->nlp_DID,
2743 ndlp->nlp_defer_did, ndlp);
2744 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2745 ndlp->nlp_defer_did =
2746 NLP_EVT_NOTHING_PENDING;
2747 lpfc_issue_els_plogi(
2748 vport, ndlp->nlp_DID, 0);
2750 __lpfc_sli_rpi_release(vport, ndlp);
2758 mempool_free(pmb, phba->mbox_mem_pool);
2762 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2763 * @phba: Pointer to HBA context object.
2765 * This function is called with no lock held. This function processes all
2766 * the completed mailbox commands and gives it to upper layers. The interrupt
2767 * service routine processes mailbox completion interrupt and adds completed
2768 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2769 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2770 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2771 * function returns the mailbox commands to the upper layer by calling the
2772 * completion handler function of each mailbox.
2775 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2782 phba->sli.slistat.mbox_event++;
2784 /* Get all completed mailboxe buffers into the cmplq */
2785 spin_lock_irq(&phba->hbalock);
2786 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2787 spin_unlock_irq(&phba->hbalock);
2789 /* Get a Mailbox buffer to setup mailbox commands for callback */
2791 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2797 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2799 lpfc_debugfs_disc_trc(pmb->vport,
2800 LPFC_DISC_TRC_MBOX_VPORT,
2801 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2802 (uint32_t)pmbox->mbxCommand,
2803 pmbox->un.varWords[0],
2804 pmbox->un.varWords[1]);
2807 lpfc_debugfs_disc_trc(phba->pport,
2809 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2810 (uint32_t)pmbox->mbxCommand,
2811 pmbox->un.varWords[0],
2812 pmbox->un.varWords[1]);
2817 * It is a fatal error if unknown mbox command completion.
2819 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2821 /* Unknown mailbox command compl */
2822 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2823 "(%d):0323 Unknown Mailbox command "
2824 "x%x (x%x/x%x) Cmpl\n",
2825 pmb->vport ? pmb->vport->vpi :
2828 lpfc_sli_config_mbox_subsys_get(phba,
2830 lpfc_sli_config_mbox_opcode_get(phba,
2832 phba->link_state = LPFC_HBA_ERROR;
2833 phba->work_hs = HS_FFER3;
2834 lpfc_handle_eratt(phba);
2838 if (pmbox->mbxStatus) {
2839 phba->sli.slistat.mbox_stat_err++;
2840 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2841 /* Mbox cmd cmpl error - RETRYing */
2842 lpfc_printf_log(phba, KERN_INFO,
2844 "(%d):0305 Mbox cmd cmpl "
2845 "error - RETRYing Data: x%x "
2846 "(x%x/x%x) x%x x%x x%x\n",
2847 pmb->vport ? pmb->vport->vpi :
2850 lpfc_sli_config_mbox_subsys_get(phba,
2852 lpfc_sli_config_mbox_opcode_get(phba,
2855 pmbox->un.varWords[0],
2856 pmb->vport ? pmb->vport->port_state :
2857 LPFC_VPORT_UNKNOWN);
2858 pmbox->mbxStatus = 0;
2859 pmbox->mbxOwner = OWN_HOST;
2860 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2861 if (rc != MBX_NOT_FINISHED)
2866 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2867 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2868 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl %ps "
2869 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2871 pmb->vport ? pmb->vport->vpi : 0,
2873 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2874 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2876 *((uint32_t *) pmbox),
2877 pmbox->un.varWords[0],
2878 pmbox->un.varWords[1],
2879 pmbox->un.varWords[2],
2880 pmbox->un.varWords[3],
2881 pmbox->un.varWords[4],
2882 pmbox->un.varWords[5],
2883 pmbox->un.varWords[6],
2884 pmbox->un.varWords[7],
2885 pmbox->un.varWords[8],
2886 pmbox->un.varWords[9],
2887 pmbox->un.varWords[10]);
2890 pmb->mbox_cmpl(phba,pmb);
2896 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2897 * @phba: Pointer to HBA context object.
2898 * @pring: Pointer to driver SLI ring object.
2901 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2902 * is set in the tag the buffer is posted for a particular exchange,
2903 * the function will return the buffer without replacing the buffer.
2904 * If the buffer is for unsolicited ELS or CT traffic, this function
2905 * returns the buffer and also posts another buffer to the firmware.
2907 static struct lpfc_dmabuf *
2908 lpfc_sli_get_buff(struct lpfc_hba *phba,
2909 struct lpfc_sli_ring *pring,
2912 struct hbq_dmabuf *hbq_entry;
2914 if (tag & QUE_BUFTAG_BIT)
2915 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2916 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2919 return &hbq_entry->dbuf;
2923 * lpfc_nvme_unsol_ls_handler - Process an unsolicited event data buffer
2924 * containing a NVME LS request.
2925 * @phba: pointer to lpfc hba data structure.
2926 * @piocb: pointer to the iocbq struct representing the sequence starting
2929 * This routine initially validates the NVME LS, validates there is a login
2930 * with the port that sent the LS, and then calls the appropriate nvme host
2931 * or target LS request handler.
2934 lpfc_nvme_unsol_ls_handler(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
2936 struct lpfc_nodelist *ndlp;
2937 struct lpfc_dmabuf *d_buf;
2938 struct hbq_dmabuf *nvmebuf;
2939 struct fc_frame_header *fc_hdr;
2940 struct lpfc_async_xchg_ctx *axchg = NULL;
2941 char *failwhy = NULL;
2942 uint32_t oxid, sid, did, fctl, size;
2945 d_buf = piocb->context2;
2947 nvmebuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2948 fc_hdr = nvmebuf->hbuf.virt;
2949 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
2950 sid = sli4_sid_from_fc_hdr(fc_hdr);
2951 did = sli4_did_from_fc_hdr(fc_hdr);
2952 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
2953 fc_hdr->fh_f_ctl[1] << 8 |
2954 fc_hdr->fh_f_ctl[2]);
2955 size = bf_get(lpfc_rcqe_length, &nvmebuf->cq_event.cqe.rcqe_cmpl);
2957 lpfc_nvmeio_data(phba, "NVME LS RCV: xri x%x sz %d from %06x\n",
2960 if (phba->pport->load_flag & FC_UNLOADING) {
2961 failwhy = "Driver Unloading";
2962 } else if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
2963 failwhy = "NVME FC4 Disabled";
2964 } else if (!phba->nvmet_support && !phba->pport->localport) {
2965 failwhy = "No Localport";
2966 } else if (phba->nvmet_support && !phba->targetport) {
2967 failwhy = "No Targetport";
2968 } else if (unlikely(fc_hdr->fh_r_ctl != FC_RCTL_ELS4_REQ)) {
2969 failwhy = "Bad NVME LS R_CTL";
2970 } else if (unlikely((fctl & 0x00FF0000) !=
2971 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT))) {
2972 failwhy = "Bad NVME LS F_CTL";
2974 axchg = kzalloc(sizeof(*axchg), GFP_ATOMIC);
2976 failwhy = "No CTX memory";
2979 if (unlikely(failwhy)) {
2980 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2981 "6154 Drop NVME LS: SID %06X OXID x%X: %s\n",
2982 sid, oxid, failwhy);
2986 /* validate the source of the LS is logged in */
2987 ndlp = lpfc_findnode_did(phba->pport, sid);
2989 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2990 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
2991 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
2992 "6216 NVME Unsol rcv: No ndlp: "
2993 "NPort_ID x%x oxid x%x\n",
3004 axchg->state = LPFC_NVME_STE_LS_RCV;
3005 axchg->entry_cnt = 1;
3006 axchg->rqb_buffer = (void *)nvmebuf;
3007 axchg->hdwq = &phba->sli4_hba.hdwq[0];
3008 axchg->payload = nvmebuf->dbuf.virt;
3009 INIT_LIST_HEAD(&axchg->list);
3011 if (phba->nvmet_support) {
3012 ret = lpfc_nvmet_handle_lsreq(phba, axchg);
3013 spin_lock_irq(&ndlp->lock);
3014 if (!ret && !(ndlp->fc4_xpt_flags & NLP_XPT_HAS_HH)) {
3015 ndlp->fc4_xpt_flags |= NLP_XPT_HAS_HH;
3016 spin_unlock_irq(&ndlp->lock);
3018 /* This reference is a single occurrence to hold the
3019 * node valid until the nvmet transport calls
3022 if (!lpfc_nlp_get(ndlp))
3025 lpfc_printf_log(phba, KERN_ERR, LOG_NODE,
3026 "6206 NVMET unsol ls_req ndlp x%px "
3027 "DID x%x xflags x%x refcnt %d\n",
3028 ndlp, ndlp->nlp_DID,
3029 ndlp->fc4_xpt_flags,
3030 kref_read(&ndlp->kref));
3032 spin_unlock_irq(&ndlp->lock);
3035 ret = lpfc_nvme_handle_lsreq(phba, axchg);
3038 /* if zero, LS was successfully handled. If non-zero, LS not handled */
3043 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3044 "6155 Drop NVME LS from DID %06X: SID %06X OXID x%X "
3045 "NVMe%s handler failed %d\n",
3047 (phba->nvmet_support) ? "T" : "I", ret);
3049 /* recycle receive buffer */
3050 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
3052 /* If start of new exchange, abort it */
3053 if (axchg && (fctl & FC_FC_FIRST_SEQ && !(fctl & FC_FC_EX_CTX)))
3054 ret = lpfc_nvme_unsol_ls_issue_abort(phba, axchg, sid, oxid);
3061 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
3062 * @phba: Pointer to HBA context object.
3063 * @pring: Pointer to driver SLI ring object.
3064 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
3065 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
3066 * @fch_type: the type for the first frame of the sequence.
3068 * This function is called with no lock held. This function uses the r_ctl and
3069 * type of the received sequence to find the correct callback function to call
3070 * to process the sequence.
3073 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3074 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
3081 lpfc_nvme_unsol_ls_handler(phba, saveq);
3087 /* unSolicited Responses */
3088 if (pring->prt[0].profile) {
3089 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
3090 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
3094 /* We must search, based on rctl / type
3095 for the right routine */
3096 for (i = 0; i < pring->num_mask; i++) {
3097 if ((pring->prt[i].rctl == fch_r_ctl) &&
3098 (pring->prt[i].type == fch_type)) {
3099 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
3100 (pring->prt[i].lpfc_sli_rcv_unsol_event)
3101 (phba, pring, saveq);
3109 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
3110 * @phba: Pointer to HBA context object.
3111 * @pring: Pointer to driver SLI ring object.
3112 * @saveq: Pointer to the unsolicited iocb.
3114 * This function is called with no lock held by the ring event handler
3115 * when there is an unsolicited iocb posted to the response ring by the
3116 * firmware. This function gets the buffer associated with the iocbs
3117 * and calls the event handler for the ring. This function handles both
3118 * qring buffers and hbq buffers.
3119 * When the function returns 1 the caller can free the iocb object otherwise
3120 * upper layer functions will free the iocb objects.
3123 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3124 struct lpfc_iocbq *saveq)
3128 uint32_t Rctl, Type;
3129 struct lpfc_iocbq *iocbq;
3130 struct lpfc_dmabuf *dmzbuf;
3132 irsp = &(saveq->iocb);
3134 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
3135 if (pring->lpfc_sli_rcv_async_status)
3136 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
3138 lpfc_printf_log(phba,
3141 "0316 Ring %d handler: unexpected "
3142 "ASYNC_STATUS iocb received evt_code "
3145 irsp->un.asyncstat.evt_code);
3149 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
3150 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
3151 if (irsp->ulpBdeCount > 0) {
3152 dmzbuf = lpfc_sli_get_buff(phba, pring,
3153 irsp->un.ulpWord[3]);
3154 lpfc_in_buf_free(phba, dmzbuf);
3157 if (irsp->ulpBdeCount > 1) {
3158 dmzbuf = lpfc_sli_get_buff(phba, pring,
3159 irsp->unsli3.sli3Words[3]);
3160 lpfc_in_buf_free(phba, dmzbuf);
3163 if (irsp->ulpBdeCount > 2) {
3164 dmzbuf = lpfc_sli_get_buff(phba, pring,
3165 irsp->unsli3.sli3Words[7]);
3166 lpfc_in_buf_free(phba, dmzbuf);
3172 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
3173 if (irsp->ulpBdeCount != 0) {
3174 saveq->context2 = lpfc_sli_get_buff(phba, pring,
3175 irsp->un.ulpWord[3]);
3176 if (!saveq->context2)
3177 lpfc_printf_log(phba,
3180 "0341 Ring %d Cannot find buffer for "
3181 "an unsolicited iocb. tag 0x%x\n",
3183 irsp->un.ulpWord[3]);
3185 if (irsp->ulpBdeCount == 2) {
3186 saveq->context3 = lpfc_sli_get_buff(phba, pring,
3187 irsp->unsli3.sli3Words[7]);
3188 if (!saveq->context3)
3189 lpfc_printf_log(phba,
3192 "0342 Ring %d Cannot find buffer for an"
3193 " unsolicited iocb. tag 0x%x\n",
3195 irsp->unsli3.sli3Words[7]);
3197 list_for_each_entry(iocbq, &saveq->list, list) {
3198 irsp = &(iocbq->iocb);
3199 if (irsp->ulpBdeCount != 0) {
3200 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
3201 irsp->un.ulpWord[3]);
3202 if (!iocbq->context2)
3203 lpfc_printf_log(phba,
3206 "0343 Ring %d Cannot find "
3207 "buffer for an unsolicited iocb"
3208 ". tag 0x%x\n", pring->ringno,
3209 irsp->un.ulpWord[3]);
3211 if (irsp->ulpBdeCount == 2) {
3212 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
3213 irsp->unsli3.sli3Words[7]);
3214 if (!iocbq->context3)
3215 lpfc_printf_log(phba,
3218 "0344 Ring %d Cannot find "
3219 "buffer for an unsolicited "
3222 irsp->unsli3.sli3Words[7]);
3226 if (irsp->ulpBdeCount != 0 &&
3227 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
3228 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
3231 /* search continue save q for same XRI */
3232 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
3233 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
3234 saveq->iocb.unsli3.rcvsli3.ox_id) {
3235 list_add_tail(&saveq->list, &iocbq->list);
3241 list_add_tail(&saveq->clist,
3242 &pring->iocb_continue_saveq);
3243 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
3244 list_del_init(&iocbq->clist);
3246 irsp = &(saveq->iocb);
3250 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
3251 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
3252 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
3253 Rctl = FC_RCTL_ELS_REQ;
3256 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
3257 Rctl = w5p->hcsw.Rctl;
3258 Type = w5p->hcsw.Type;
3260 /* Firmware Workaround */
3261 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
3262 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
3263 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
3264 Rctl = FC_RCTL_ELS_REQ;
3266 w5p->hcsw.Rctl = Rctl;
3267 w5p->hcsw.Type = Type;
3271 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
3272 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3273 "0313 Ring %d handler: unexpected Rctl x%x "
3274 "Type x%x received\n",
3275 pring->ringno, Rctl, Type);
3281 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
3282 * @phba: Pointer to HBA context object.
3283 * @pring: Pointer to driver SLI ring object.
3284 * @prspiocb: Pointer to response iocb object.
3286 * This function looks up the iocb_lookup table to get the command iocb
3287 * corresponding to the given response iocb using the iotag of the
3288 * response iocb. The driver calls this function with the hbalock held
3289 * for SLI3 ports or the ring lock held for SLI4 ports.
3290 * This function returns the command iocb object if it finds the command
3291 * iocb else returns NULL.
3293 static struct lpfc_iocbq *
3294 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
3295 struct lpfc_sli_ring *pring,
3296 struct lpfc_iocbq *prspiocb)
3298 struct lpfc_iocbq *cmd_iocb = NULL;
3300 spinlock_t *temp_lock = NULL;
3301 unsigned long iflag = 0;
3303 if (phba->sli_rev == LPFC_SLI_REV4)
3304 temp_lock = &pring->ring_lock;
3306 temp_lock = &phba->hbalock;
3308 spin_lock_irqsave(temp_lock, iflag);
3309 iotag = prspiocb->iocb.ulpIoTag;
3311 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3312 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3313 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3314 /* remove from txcmpl queue list */
3315 list_del_init(&cmd_iocb->list);
3316 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3317 pring->txcmplq_cnt--;
3318 spin_unlock_irqrestore(temp_lock, iflag);
3323 spin_unlock_irqrestore(temp_lock, iflag);
3324 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3325 "0317 iotag x%x is out of "
3326 "range: max iotag x%x wd0 x%x\n",
3327 iotag, phba->sli.last_iotag,
3328 *(((uint32_t *) &prspiocb->iocb) + 7));
3333 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
3334 * @phba: Pointer to HBA context object.
3335 * @pring: Pointer to driver SLI ring object.
3338 * This function looks up the iocb_lookup table to get the command iocb
3339 * corresponding to the given iotag. The driver calls this function with
3340 * the ring lock held because this function is an SLI4 port only helper.
3341 * This function returns the command iocb object if it finds the command
3342 * iocb else returns NULL.
3344 static struct lpfc_iocbq *
3345 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
3346 struct lpfc_sli_ring *pring, uint16_t iotag)
3348 struct lpfc_iocbq *cmd_iocb = NULL;
3349 spinlock_t *temp_lock = NULL;
3350 unsigned long iflag = 0;
3352 if (phba->sli_rev == LPFC_SLI_REV4)
3353 temp_lock = &pring->ring_lock;
3355 temp_lock = &phba->hbalock;
3357 spin_lock_irqsave(temp_lock, iflag);
3358 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3359 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3360 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3361 /* remove from txcmpl queue list */
3362 list_del_init(&cmd_iocb->list);
3363 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3364 pring->txcmplq_cnt--;
3365 spin_unlock_irqrestore(temp_lock, iflag);
3370 spin_unlock_irqrestore(temp_lock, iflag);
3371 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3372 "0372 iotag x%x lookup error: max iotag (x%x) "
3374 iotag, phba->sli.last_iotag,
3375 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
3380 * lpfc_sli_process_sol_iocb - process solicited iocb completion
3381 * @phba: Pointer to HBA context object.
3382 * @pring: Pointer to driver SLI ring object.
3383 * @saveq: Pointer to the response iocb to be processed.
3385 * This function is called by the ring event handler for non-fcp
3386 * rings when there is a new response iocb in the response ring.
3387 * The caller is not required to hold any locks. This function
3388 * gets the command iocb associated with the response iocb and
3389 * calls the completion handler for the command iocb. If there
3390 * is no completion handler, the function will free the resources
3391 * associated with command iocb. If the response iocb is for
3392 * an already aborted command iocb, the status of the completion
3393 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
3394 * This function always returns 1.
3397 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3398 struct lpfc_iocbq *saveq)
3400 struct lpfc_iocbq *cmdiocbp;
3402 unsigned long iflag;
3404 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
3406 if (cmdiocbp->iocb_cmpl) {
3408 * If an ELS command failed send an event to mgmt
3411 if (saveq->iocb.ulpStatus &&
3412 (pring->ringno == LPFC_ELS_RING) &&
3413 (cmdiocbp->iocb.ulpCommand ==
3414 CMD_ELS_REQUEST64_CR))
3415 lpfc_send_els_failure_event(phba,
3419 * Post all ELS completions to the worker thread.
3420 * All other are passed to the completion callback.
3422 if (pring->ringno == LPFC_ELS_RING) {
3423 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3424 (cmdiocbp->iocb_flag &
3425 LPFC_DRIVER_ABORTED)) {
3426 spin_lock_irqsave(&phba->hbalock,
3428 cmdiocbp->iocb_flag &=
3429 ~LPFC_DRIVER_ABORTED;
3430 spin_unlock_irqrestore(&phba->hbalock,
3432 saveq->iocb.ulpStatus =
3433 IOSTAT_LOCAL_REJECT;
3434 saveq->iocb.un.ulpWord[4] =
3437 /* Firmware could still be in progress
3438 * of DMAing payload, so don't free data
3439 * buffer till after a hbeat.
3441 spin_lock_irqsave(&phba->hbalock,
3443 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
3444 spin_unlock_irqrestore(&phba->hbalock,
3447 if (phba->sli_rev == LPFC_SLI_REV4) {
3448 if (saveq->iocb_flag &
3449 LPFC_EXCHANGE_BUSY) {
3450 /* Set cmdiocb flag for the
3451 * exchange busy so sgl (xri)
3452 * will not be released until
3453 * the abort xri is received
3457 &phba->hbalock, iflag);
3458 cmdiocbp->iocb_flag |=
3460 spin_unlock_irqrestore(
3461 &phba->hbalock, iflag);
3463 if (cmdiocbp->iocb_flag &
3464 LPFC_DRIVER_ABORTED) {
3466 * Clear LPFC_DRIVER_ABORTED
3467 * bit in case it was driver
3471 &phba->hbalock, iflag);
3472 cmdiocbp->iocb_flag &=
3473 ~LPFC_DRIVER_ABORTED;
3474 spin_unlock_irqrestore(
3475 &phba->hbalock, iflag);
3476 cmdiocbp->iocb.ulpStatus =
3477 IOSTAT_LOCAL_REJECT;
3478 cmdiocbp->iocb.un.ulpWord[4] =
3479 IOERR_ABORT_REQUESTED;
3481 * For SLI4, irsiocb contains
3482 * NO_XRI in sli_xritag, it
3483 * shall not affect releasing
3484 * sgl (xri) process.
3486 saveq->iocb.ulpStatus =
3487 IOSTAT_LOCAL_REJECT;
3488 saveq->iocb.un.ulpWord[4] =
3491 &phba->hbalock, iflag);
3493 LPFC_DELAY_MEM_FREE;
3494 spin_unlock_irqrestore(
3495 &phba->hbalock, iflag);
3499 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
3501 lpfc_sli_release_iocbq(phba, cmdiocbp);
3504 * Unknown initiating command based on the response iotag.
3505 * This could be the case on the ELS ring because of
3508 if (pring->ringno != LPFC_ELS_RING) {
3510 * Ring <ringno> handler: unexpected completion IoTag
3513 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3514 "0322 Ring %d handler: "
3515 "unexpected completion IoTag x%x "
3516 "Data: x%x x%x x%x x%x\n",
3518 saveq->iocb.ulpIoTag,
3519 saveq->iocb.ulpStatus,
3520 saveq->iocb.un.ulpWord[4],
3521 saveq->iocb.ulpCommand,
3522 saveq->iocb.ulpContext);
3530 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
3531 * @phba: Pointer to HBA context object.
3532 * @pring: Pointer to driver SLI ring object.
3534 * This function is called from the iocb ring event handlers when
3535 * put pointer is ahead of the get pointer for a ring. This function signal
3536 * an error attention condition to the worker thread and the worker
3537 * thread will transition the HBA to offline state.
3540 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3542 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3544 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3545 * rsp ring <portRspMax>
3547 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3548 "0312 Ring %d handler: portRspPut %d "
3549 "is bigger than rsp ring %d\n",
3550 pring->ringno, le32_to_cpu(pgp->rspPutInx),
3551 pring->sli.sli3.numRiocb);
3553 phba->link_state = LPFC_HBA_ERROR;
3556 * All error attention handlers are posted to
3559 phba->work_ha |= HA_ERATT;
3560 phba->work_hs = HS_FFER3;
3562 lpfc_worker_wake_up(phba);
3568 * lpfc_poll_eratt - Error attention polling timer timeout handler
3569 * @t: Context to fetch pointer to address of HBA context object from.
3571 * This function is invoked by the Error Attention polling timer when the
3572 * timer times out. It will check the SLI Error Attention register for
3573 * possible attention events. If so, it will post an Error Attention event
3574 * and wake up worker thread to process it. Otherwise, it will set up the
3575 * Error Attention polling timer for the next poll.
3577 void lpfc_poll_eratt(struct timer_list *t)
3579 struct lpfc_hba *phba;
3581 uint64_t sli_intr, cnt;
3583 phba = from_timer(phba, t, eratt_poll);
3585 /* Here we will also keep track of interrupts per sec of the hba */
3586 sli_intr = phba->sli.slistat.sli_intr;
3588 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3589 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3592 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3594 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3595 do_div(cnt, phba->eratt_poll_interval);
3596 phba->sli.slistat.sli_ips = cnt;
3598 phba->sli.slistat.sli_prev_intr = sli_intr;
3600 /* Check chip HA register for error event */
3601 eratt = lpfc_sli_check_eratt(phba);
3604 /* Tell the worker thread there is work to do */
3605 lpfc_worker_wake_up(phba);
3607 /* Restart the timer for next eratt poll */
3608 mod_timer(&phba->eratt_poll,
3610 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3616 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3617 * @phba: Pointer to HBA context object.
3618 * @pring: Pointer to driver SLI ring object.
3619 * @mask: Host attention register mask for this ring.
3621 * This function is called from the interrupt context when there is a ring
3622 * event for the fcp ring. The caller does not hold any lock.
3623 * The function processes each response iocb in the response ring until it
3624 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3625 * LE bit set. The function will call the completion handler of the command iocb
3626 * if the response iocb indicates a completion for a command iocb or it is
3627 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3628 * function if this is an unsolicited iocb.
3629 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3630 * to check it explicitly.
3633 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3634 struct lpfc_sli_ring *pring, uint32_t mask)
3636 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3637 IOCB_t *irsp = NULL;
3638 IOCB_t *entry = NULL;
3639 struct lpfc_iocbq *cmdiocbq = NULL;
3640 struct lpfc_iocbq rspiocbq;
3642 uint32_t portRspPut, portRspMax;
3644 lpfc_iocb_type type;
3645 unsigned long iflag;
3646 uint32_t rsp_cmpl = 0;
3648 spin_lock_irqsave(&phba->hbalock, iflag);
3649 pring->stats.iocb_event++;
3652 * The next available response entry should never exceed the maximum
3653 * entries. If it does, treat it as an adapter hardware error.
3655 portRspMax = pring->sli.sli3.numRiocb;
3656 portRspPut = le32_to_cpu(pgp->rspPutInx);
3657 if (unlikely(portRspPut >= portRspMax)) {
3658 lpfc_sli_rsp_pointers_error(phba, pring);
3659 spin_unlock_irqrestore(&phba->hbalock, iflag);
3662 if (phba->fcp_ring_in_use) {
3663 spin_unlock_irqrestore(&phba->hbalock, iflag);
3666 phba->fcp_ring_in_use = 1;
3669 while (pring->sli.sli3.rspidx != portRspPut) {
3671 * Fetch an entry off the ring and copy it into a local data
3672 * structure. The copy involves a byte-swap since the
3673 * network byte order and pci byte orders are different.
3675 entry = lpfc_resp_iocb(phba, pring);
3676 phba->last_completion_time = jiffies;
3678 if (++pring->sli.sli3.rspidx >= portRspMax)
3679 pring->sli.sli3.rspidx = 0;
3681 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3682 (uint32_t *) &rspiocbq.iocb,
3683 phba->iocb_rsp_size);
3684 INIT_LIST_HEAD(&(rspiocbq.list));
3685 irsp = &rspiocbq.iocb;
3687 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3688 pring->stats.iocb_rsp++;
3691 if (unlikely(irsp->ulpStatus)) {
3693 * If resource errors reported from HBA, reduce
3694 * queuedepths of the SCSI device.
3696 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3697 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3698 IOERR_NO_RESOURCES)) {
3699 spin_unlock_irqrestore(&phba->hbalock, iflag);
3700 phba->lpfc_rampdown_queue_depth(phba);
3701 spin_lock_irqsave(&phba->hbalock, iflag);
3704 /* Rsp ring <ringno> error: IOCB */
3705 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3706 "0336 Rsp Ring %d error: IOCB Data: "
3707 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3709 irsp->un.ulpWord[0],
3710 irsp->un.ulpWord[1],
3711 irsp->un.ulpWord[2],
3712 irsp->un.ulpWord[3],
3713 irsp->un.ulpWord[4],
3714 irsp->un.ulpWord[5],
3715 *(uint32_t *)&irsp->un1,
3716 *((uint32_t *)&irsp->un1 + 1));
3720 case LPFC_ABORT_IOCB:
3723 * Idle exchange closed via ABTS from port. No iocb
3724 * resources need to be recovered.
3726 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3727 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3728 "0333 IOCB cmd 0x%x"
3729 " processed. Skipping"
3735 spin_unlock_irqrestore(&phba->hbalock, iflag);
3736 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3738 spin_lock_irqsave(&phba->hbalock, iflag);
3739 if (unlikely(!cmdiocbq))
3741 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3742 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3743 if (cmdiocbq->iocb_cmpl) {
3744 spin_unlock_irqrestore(&phba->hbalock, iflag);
3745 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3747 spin_lock_irqsave(&phba->hbalock, iflag);
3750 case LPFC_UNSOL_IOCB:
3751 spin_unlock_irqrestore(&phba->hbalock, iflag);
3752 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3753 spin_lock_irqsave(&phba->hbalock, iflag);
3756 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3757 char adaptermsg[LPFC_MAX_ADPTMSG];
3758 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3759 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3761 dev_warn(&((phba->pcidev)->dev),
3763 phba->brd_no, adaptermsg);
3765 /* Unknown IOCB command */
3766 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3767 "0334 Unknown IOCB command "
3768 "Data: x%x, x%x x%x x%x x%x\n",
3769 type, irsp->ulpCommand,
3778 * The response IOCB has been processed. Update the ring
3779 * pointer in SLIM. If the port response put pointer has not
3780 * been updated, sync the pgp->rspPutInx and fetch the new port
3781 * response put pointer.
3783 writel(pring->sli.sli3.rspidx,
3784 &phba->host_gp[pring->ringno].rspGetInx);
3786 if (pring->sli.sli3.rspidx == portRspPut)
3787 portRspPut = le32_to_cpu(pgp->rspPutInx);
3790 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3791 pring->stats.iocb_rsp_full++;
3792 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3793 writel(status, phba->CAregaddr);
3794 readl(phba->CAregaddr);
3796 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3797 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3798 pring->stats.iocb_cmd_empty++;
3800 /* Force update of the local copy of cmdGetInx */
3801 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3802 lpfc_sli_resume_iocb(phba, pring);
3804 if ((pring->lpfc_sli_cmd_available))
3805 (pring->lpfc_sli_cmd_available) (phba, pring);
3809 phba->fcp_ring_in_use = 0;
3810 spin_unlock_irqrestore(&phba->hbalock, iflag);
3815 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3816 * @phba: Pointer to HBA context object.
3817 * @pring: Pointer to driver SLI ring object.
3818 * @rspiocbp: Pointer to driver response IOCB object.
3820 * This function is called from the worker thread when there is a slow-path
3821 * response IOCB to process. This function chains all the response iocbs until
3822 * seeing the iocb with the LE bit set. The function will call
3823 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3824 * completion of a command iocb. The function will call the
3825 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3826 * The function frees the resources or calls the completion handler if this
3827 * iocb is an abort completion. The function returns NULL when the response
3828 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3829 * this function shall chain the iocb on to the iocb_continueq and return the
3830 * response iocb passed in.
3832 static struct lpfc_iocbq *
3833 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3834 struct lpfc_iocbq *rspiocbp)
3836 struct lpfc_iocbq *saveq;
3837 struct lpfc_iocbq *cmdiocbp;
3838 struct lpfc_iocbq *next_iocb;
3839 IOCB_t *irsp = NULL;
3840 uint32_t free_saveq;
3841 uint8_t iocb_cmd_type;
3842 lpfc_iocb_type type;
3843 unsigned long iflag;
3846 spin_lock_irqsave(&phba->hbalock, iflag);
3847 /* First add the response iocb to the countinueq list */
3848 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3849 pring->iocb_continueq_cnt++;
3851 /* Now, determine whether the list is completed for processing */
3852 irsp = &rspiocbp->iocb;
3855 * By default, the driver expects to free all resources
3856 * associated with this iocb completion.
3859 saveq = list_get_first(&pring->iocb_continueq,
3860 struct lpfc_iocbq, list);
3861 irsp = &(saveq->iocb);
3862 list_del_init(&pring->iocb_continueq);
3863 pring->iocb_continueq_cnt = 0;
3865 pring->stats.iocb_rsp++;
3868 * If resource errors reported from HBA, reduce
3869 * queuedepths of the SCSI device.
3871 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3872 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3873 IOERR_NO_RESOURCES)) {
3874 spin_unlock_irqrestore(&phba->hbalock, iflag);
3875 phba->lpfc_rampdown_queue_depth(phba);
3876 spin_lock_irqsave(&phba->hbalock, iflag);
3879 if (irsp->ulpStatus) {
3880 /* Rsp ring <ringno> error: IOCB */
3881 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3882 "0328 Rsp Ring %d error: "
3887 "x%x x%x x%x x%x\n",
3889 irsp->un.ulpWord[0],
3890 irsp->un.ulpWord[1],
3891 irsp->un.ulpWord[2],
3892 irsp->un.ulpWord[3],
3893 irsp->un.ulpWord[4],
3894 irsp->un.ulpWord[5],
3895 *(((uint32_t *) irsp) + 6),
3896 *(((uint32_t *) irsp) + 7),
3897 *(((uint32_t *) irsp) + 8),
3898 *(((uint32_t *) irsp) + 9),
3899 *(((uint32_t *) irsp) + 10),
3900 *(((uint32_t *) irsp) + 11),
3901 *(((uint32_t *) irsp) + 12),
3902 *(((uint32_t *) irsp) + 13),
3903 *(((uint32_t *) irsp) + 14),
3904 *(((uint32_t *) irsp) + 15));
3908 * Fetch the IOCB command type and call the correct completion
3909 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3910 * get freed back to the lpfc_iocb_list by the discovery
3913 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3914 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3917 spin_unlock_irqrestore(&phba->hbalock, iflag);
3918 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3919 spin_lock_irqsave(&phba->hbalock, iflag);
3922 case LPFC_UNSOL_IOCB:
3923 spin_unlock_irqrestore(&phba->hbalock, iflag);
3924 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3925 spin_lock_irqsave(&phba->hbalock, iflag);
3930 case LPFC_ABORT_IOCB:
3932 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) {
3933 spin_unlock_irqrestore(&phba->hbalock, iflag);
3934 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3936 spin_lock_irqsave(&phba->hbalock, iflag);
3939 /* Call the specified completion routine */
3940 if (cmdiocbp->iocb_cmpl) {
3941 spin_unlock_irqrestore(&phba->hbalock,
3943 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3945 spin_lock_irqsave(&phba->hbalock,
3948 __lpfc_sli_release_iocbq(phba,
3953 case LPFC_UNKNOWN_IOCB:
3954 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3955 char adaptermsg[LPFC_MAX_ADPTMSG];
3956 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3957 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3959 dev_warn(&((phba->pcidev)->dev),
3961 phba->brd_no, adaptermsg);
3963 /* Unknown IOCB command */
3964 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3965 "0335 Unknown IOCB "
3966 "command Data: x%x "
3977 list_for_each_entry_safe(rspiocbp, next_iocb,
3978 &saveq->list, list) {
3979 list_del_init(&rspiocbp->list);
3980 __lpfc_sli_release_iocbq(phba, rspiocbp);
3982 __lpfc_sli_release_iocbq(phba, saveq);
3986 spin_unlock_irqrestore(&phba->hbalock, iflag);
3991 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3992 * @phba: Pointer to HBA context object.
3993 * @pring: Pointer to driver SLI ring object.
3994 * @mask: Host attention register mask for this ring.
3996 * This routine wraps the actual slow_ring event process routine from the
3997 * API jump table function pointer from the lpfc_hba struct.
4000 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
4001 struct lpfc_sli_ring *pring, uint32_t mask)
4003 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
4007 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
4008 * @phba: Pointer to HBA context object.
4009 * @pring: Pointer to driver SLI ring object.
4010 * @mask: Host attention register mask for this ring.
4012 * This function is called from the worker thread when there is a ring event
4013 * for non-fcp rings. The caller does not hold any lock. The function will
4014 * remove each response iocb in the response ring and calls the handle
4015 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
4018 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
4019 struct lpfc_sli_ring *pring, uint32_t mask)
4021 struct lpfc_pgp *pgp;
4023 IOCB_t *irsp = NULL;
4024 struct lpfc_iocbq *rspiocbp = NULL;
4025 uint32_t portRspPut, portRspMax;
4026 unsigned long iflag;
4029 pgp = &phba->port_gp[pring->ringno];
4030 spin_lock_irqsave(&phba->hbalock, iflag);
4031 pring->stats.iocb_event++;
4034 * The next available response entry should never exceed the maximum
4035 * entries. If it does, treat it as an adapter hardware error.
4037 portRspMax = pring->sli.sli3.numRiocb;
4038 portRspPut = le32_to_cpu(pgp->rspPutInx);
4039 if (portRspPut >= portRspMax) {
4041 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
4042 * rsp ring <portRspMax>
4044 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4045 "0303 Ring %d handler: portRspPut %d "
4046 "is bigger than rsp ring %d\n",
4047 pring->ringno, portRspPut, portRspMax);
4049 phba->link_state = LPFC_HBA_ERROR;
4050 spin_unlock_irqrestore(&phba->hbalock, iflag);
4052 phba->work_hs = HS_FFER3;
4053 lpfc_handle_eratt(phba);
4059 while (pring->sli.sli3.rspidx != portRspPut) {
4061 * Build a completion list and call the appropriate handler.
4062 * The process is to get the next available response iocb, get
4063 * a free iocb from the list, copy the response data into the
4064 * free iocb, insert to the continuation list, and update the
4065 * next response index to slim. This process makes response
4066 * iocb's in the ring available to DMA as fast as possible but
4067 * pays a penalty for a copy operation. Since the iocb is
4068 * only 32 bytes, this penalty is considered small relative to
4069 * the PCI reads for register values and a slim write. When
4070 * the ulpLe field is set, the entire Command has been
4073 entry = lpfc_resp_iocb(phba, pring);
4075 phba->last_completion_time = jiffies;
4076 rspiocbp = __lpfc_sli_get_iocbq(phba);
4077 if (rspiocbp == NULL) {
4078 printk(KERN_ERR "%s: out of buffers! Failing "
4079 "completion.\n", __func__);
4083 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
4084 phba->iocb_rsp_size);
4085 irsp = &rspiocbp->iocb;
4087 if (++pring->sli.sli3.rspidx >= portRspMax)
4088 pring->sli.sli3.rspidx = 0;
4090 if (pring->ringno == LPFC_ELS_RING) {
4091 lpfc_debugfs_slow_ring_trc(phba,
4092 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
4093 *(((uint32_t *) irsp) + 4),
4094 *(((uint32_t *) irsp) + 6),
4095 *(((uint32_t *) irsp) + 7));
4098 writel(pring->sli.sli3.rspidx,
4099 &phba->host_gp[pring->ringno].rspGetInx);
4101 spin_unlock_irqrestore(&phba->hbalock, iflag);
4102 /* Handle the response IOCB */
4103 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
4104 spin_lock_irqsave(&phba->hbalock, iflag);
4107 * If the port response put pointer has not been updated, sync
4108 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
4109 * response put pointer.
4111 if (pring->sli.sli3.rspidx == portRspPut) {
4112 portRspPut = le32_to_cpu(pgp->rspPutInx);
4114 } /* while (pring->sli.sli3.rspidx != portRspPut) */
4116 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
4117 /* At least one response entry has been freed */
4118 pring->stats.iocb_rsp_full++;
4119 /* SET RxRE_RSP in Chip Att register */
4120 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
4121 writel(status, phba->CAregaddr);
4122 readl(phba->CAregaddr); /* flush */
4124 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
4125 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
4126 pring->stats.iocb_cmd_empty++;
4128 /* Force update of the local copy of cmdGetInx */
4129 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
4130 lpfc_sli_resume_iocb(phba, pring);
4132 if ((pring->lpfc_sli_cmd_available))
4133 (pring->lpfc_sli_cmd_available) (phba, pring);
4137 spin_unlock_irqrestore(&phba->hbalock, iflag);
4142 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
4143 * @phba: Pointer to HBA context object.
4144 * @pring: Pointer to driver SLI ring object.
4145 * @mask: Host attention register mask for this ring.
4147 * This function is called from the worker thread when there is a pending
4148 * ELS response iocb on the driver internal slow-path response iocb worker
4149 * queue. The caller does not hold any lock. The function will remove each
4150 * response iocb from the response worker queue and calls the handle
4151 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
4154 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
4155 struct lpfc_sli_ring *pring, uint32_t mask)
4157 struct lpfc_iocbq *irspiocbq;
4158 struct hbq_dmabuf *dmabuf;
4159 struct lpfc_cq_event *cq_event;
4160 unsigned long iflag;
4163 spin_lock_irqsave(&phba->hbalock, iflag);
4164 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
4165 spin_unlock_irqrestore(&phba->hbalock, iflag);
4166 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
4167 /* Get the response iocb from the head of work queue */
4168 spin_lock_irqsave(&phba->hbalock, iflag);
4169 list_remove_head(&phba->sli4_hba.sp_queue_event,
4170 cq_event, struct lpfc_cq_event, list);
4171 spin_unlock_irqrestore(&phba->hbalock, iflag);
4173 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
4174 case CQE_CODE_COMPL_WQE:
4175 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
4177 /* Translate ELS WCQE to response IOCBQ */
4178 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
4181 lpfc_sli_sp_handle_rspiocb(phba, pring,
4185 case CQE_CODE_RECEIVE:
4186 case CQE_CODE_RECEIVE_V1:
4187 dmabuf = container_of(cq_event, struct hbq_dmabuf,
4189 lpfc_sli4_handle_received_buffer(phba, dmabuf);
4196 /* Limit the number of events to 64 to avoid soft lockups */
4203 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
4204 * @phba: Pointer to HBA context object.
4205 * @pring: Pointer to driver SLI ring object.
4207 * This function aborts all iocbs in the given ring and frees all the iocb
4208 * objects in txq. This function issues an abort iocb for all the iocb commands
4209 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
4210 * the return of this function. The caller is not required to hold any locks.
4213 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
4215 LIST_HEAD(completions);
4216 struct lpfc_iocbq *iocb, *next_iocb;
4218 if (pring->ringno == LPFC_ELS_RING) {
4219 lpfc_fabric_abort_hba(phba);
4222 /* Error everything on txq and txcmplq
4225 if (phba->sli_rev >= LPFC_SLI_REV4) {
4226 spin_lock_irq(&pring->ring_lock);
4227 list_splice_init(&pring->txq, &completions);
4229 spin_unlock_irq(&pring->ring_lock);
4231 spin_lock_irq(&phba->hbalock);
4232 /* Next issue ABTS for everything on the txcmplq */
4233 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
4234 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
4235 spin_unlock_irq(&phba->hbalock);
4237 spin_lock_irq(&phba->hbalock);
4238 list_splice_init(&pring->txq, &completions);
4241 /* Next issue ABTS for everything on the txcmplq */
4242 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
4243 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
4244 spin_unlock_irq(&phba->hbalock);
4246 /* Make sure HBA is alive */
4247 lpfc_issue_hb_tmo(phba);
4249 /* Cancel all the IOCBs from the completions list */
4250 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4255 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
4256 * @phba: Pointer to HBA context object.
4258 * This function aborts all iocbs in FCP rings and frees all the iocb
4259 * objects in txq. This function issues an abort iocb for all the iocb commands
4260 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
4261 * the return of this function. The caller is not required to hold any locks.
4264 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
4266 struct lpfc_sli *psli = &phba->sli;
4267 struct lpfc_sli_ring *pring;
4270 /* Look on all the FCP Rings for the iotag */
4271 if (phba->sli_rev >= LPFC_SLI_REV4) {
4272 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4273 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4274 lpfc_sli_abort_iocb_ring(phba, pring);
4277 pring = &psli->sli3_ring[LPFC_FCP_RING];
4278 lpfc_sli_abort_iocb_ring(phba, pring);
4283 * lpfc_sli_flush_io_rings - flush all iocbs in the IO ring
4284 * @phba: Pointer to HBA context object.
4286 * This function flushes all iocbs in the IO ring and frees all the iocb
4287 * objects in txq and txcmplq. This function will not issue abort iocbs
4288 * for all the iocb commands in txcmplq, they will just be returned with
4289 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
4290 * slot has been permanently disabled.
4293 lpfc_sli_flush_io_rings(struct lpfc_hba *phba)
4297 struct lpfc_sli *psli = &phba->sli;
4298 struct lpfc_sli_ring *pring;
4300 struct lpfc_iocbq *piocb, *next_iocb;
4302 spin_lock_irq(&phba->hbalock);
4303 if (phba->hba_flag & HBA_IOQ_FLUSH ||
4304 !phba->sli4_hba.hdwq) {
4305 spin_unlock_irq(&phba->hbalock);
4308 /* Indicate the I/O queues are flushed */
4309 phba->hba_flag |= HBA_IOQ_FLUSH;
4310 spin_unlock_irq(&phba->hbalock);
4312 /* Look on all the FCP Rings for the iotag */
4313 if (phba->sli_rev >= LPFC_SLI_REV4) {
4314 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4315 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4317 spin_lock_irq(&pring->ring_lock);
4318 /* Retrieve everything on txq */
4319 list_splice_init(&pring->txq, &txq);
4320 list_for_each_entry_safe(piocb, next_iocb,
4321 &pring->txcmplq, list)
4322 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4323 /* Retrieve everything on the txcmplq */
4324 list_splice_init(&pring->txcmplq, &txcmplq);
4326 pring->txcmplq_cnt = 0;
4327 spin_unlock_irq(&pring->ring_lock);
4330 lpfc_sli_cancel_iocbs(phba, &txq,
4331 IOSTAT_LOCAL_REJECT,
4333 /* Flush the txcmpq */
4334 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4335 IOSTAT_LOCAL_REJECT,
4339 pring = &psli->sli3_ring[LPFC_FCP_RING];
4341 spin_lock_irq(&phba->hbalock);
4342 /* Retrieve everything on txq */
4343 list_splice_init(&pring->txq, &txq);
4344 list_for_each_entry_safe(piocb, next_iocb,
4345 &pring->txcmplq, list)
4346 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4347 /* Retrieve everything on the txcmplq */
4348 list_splice_init(&pring->txcmplq, &txcmplq);
4350 pring->txcmplq_cnt = 0;
4351 spin_unlock_irq(&phba->hbalock);
4354 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
4356 /* Flush the txcmpq */
4357 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
4363 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
4364 * @phba: Pointer to HBA context object.
4365 * @mask: Bit mask to be checked.
4367 * This function reads the host status register and compares
4368 * with the provided bit mask to check if HBA completed
4369 * the restart. This function will wait in a loop for the
4370 * HBA to complete restart. If the HBA does not restart within
4371 * 15 iterations, the function will reset the HBA again. The
4372 * function returns 1 when HBA fail to restart otherwise returns
4376 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
4382 /* Read the HBA Host Status Register */
4383 if (lpfc_readl(phba->HSregaddr, &status))
4386 phba->hba_flag |= HBA_NEEDS_CFG_PORT;
4389 * Check status register every 100ms for 5 retries, then every
4390 * 500ms for 5, then every 2.5 sec for 5, then reset board and
4391 * every 2.5 sec for 4.
4392 * Break our of the loop if errors occurred during init.
4394 while (((status & mask) != mask) &&
4395 !(status & HS_FFERM) &&
4407 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4408 lpfc_sli_brdrestart(phba);
4410 /* Read the HBA Host Status Register */
4411 if (lpfc_readl(phba->HSregaddr, &status)) {
4417 /* Check to see if any errors occurred during init */
4418 if ((status & HS_FFERM) || (i >= 20)) {
4419 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4420 "2751 Adapter failed to restart, "
4421 "status reg x%x, FW Data: A8 x%x AC x%x\n",
4423 readl(phba->MBslimaddr + 0xa8),
4424 readl(phba->MBslimaddr + 0xac));
4425 phba->link_state = LPFC_HBA_ERROR;
4433 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
4434 * @phba: Pointer to HBA context object.
4435 * @mask: Bit mask to be checked.
4437 * This function checks the host status register to check if HBA is
4438 * ready. This function will wait in a loop for the HBA to be ready
4439 * If the HBA is not ready , the function will will reset the HBA PCI
4440 * function again. The function returns 1 when HBA fail to be ready
4441 * otherwise returns zero.
4444 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
4449 /* Read the HBA Host Status Register */
4450 status = lpfc_sli4_post_status_check(phba);
4453 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4454 lpfc_sli_brdrestart(phba);
4455 status = lpfc_sli4_post_status_check(phba);
4458 /* Check to see if any errors occurred during init */
4460 phba->link_state = LPFC_HBA_ERROR;
4463 phba->sli4_hba.intr_enable = 0;
4469 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
4470 * @phba: Pointer to HBA context object.
4471 * @mask: Bit mask to be checked.
4473 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
4474 * from the API jump table function pointer from the lpfc_hba struct.
4477 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
4479 return phba->lpfc_sli_brdready(phba, mask);
4482 #define BARRIER_TEST_PATTERN (0xdeadbeef)
4485 * lpfc_reset_barrier - Make HBA ready for HBA reset
4486 * @phba: Pointer to HBA context object.
4488 * This function is called before resetting an HBA. This function is called
4489 * with hbalock held and requests HBA to quiesce DMAs before a reset.
4491 void lpfc_reset_barrier(struct lpfc_hba *phba)
4493 uint32_t __iomem *resp_buf;
4494 uint32_t __iomem *mbox_buf;
4495 volatile uint32_t mbox;
4496 uint32_t hc_copy, ha_copy, resp_data;
4500 lockdep_assert_held(&phba->hbalock);
4502 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4503 if (hdrtype != 0x80 ||
4504 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4505 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4509 * Tell the other part of the chip to suspend temporarily all
4512 resp_buf = phba->MBslimaddr;
4514 /* Disable the error attention */
4515 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4517 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4518 readl(phba->HCregaddr); /* flush */
4519 phba->link_flag |= LS_IGNORE_ERATT;
4521 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4523 if (ha_copy & HA_ERATT) {
4524 /* Clear Chip error bit */
4525 writel(HA_ERATT, phba->HAregaddr);
4526 phba->pport->stopped = 1;
4530 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4531 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4533 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4534 mbox_buf = phba->MBslimaddr;
4535 writel(mbox, mbox_buf);
4537 for (i = 0; i < 50; i++) {
4538 if (lpfc_readl((resp_buf + 1), &resp_data))
4540 if (resp_data != ~(BARRIER_TEST_PATTERN))
4546 if (lpfc_readl((resp_buf + 1), &resp_data))
4548 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4549 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4550 phba->pport->stopped)
4556 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4558 for (i = 0; i < 500; i++) {
4559 if (lpfc_readl(resp_buf, &resp_data))
4561 if (resp_data != mbox)
4570 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4572 if (!(ha_copy & HA_ERATT))
4578 if (readl(phba->HAregaddr) & HA_ERATT) {
4579 writel(HA_ERATT, phba->HAregaddr);
4580 phba->pport->stopped = 1;
4584 phba->link_flag &= ~LS_IGNORE_ERATT;
4585 writel(hc_copy, phba->HCregaddr);
4586 readl(phba->HCregaddr); /* flush */
4590 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4591 * @phba: Pointer to HBA context object.
4593 * This function issues a kill_board mailbox command and waits for
4594 * the error attention interrupt. This function is called for stopping
4595 * the firmware processing. The caller is not required to hold any
4596 * locks. This function calls lpfc_hba_down_post function to free
4597 * any pending commands after the kill. The function will return 1 when it
4598 * fails to kill the board else will return 0.
4601 lpfc_sli_brdkill(struct lpfc_hba *phba)
4603 struct lpfc_sli *psli;
4613 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4614 "0329 Kill HBA Data: x%x x%x\n",
4615 phba->pport->port_state, psli->sli_flag);
4617 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4621 /* Disable the error attention */
4622 spin_lock_irq(&phba->hbalock);
4623 if (lpfc_readl(phba->HCregaddr, &status)) {
4624 spin_unlock_irq(&phba->hbalock);
4625 mempool_free(pmb, phba->mbox_mem_pool);
4628 status &= ~HC_ERINT_ENA;
4629 writel(status, phba->HCregaddr);
4630 readl(phba->HCregaddr); /* flush */
4631 phba->link_flag |= LS_IGNORE_ERATT;
4632 spin_unlock_irq(&phba->hbalock);
4634 lpfc_kill_board(phba, pmb);
4635 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4636 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4638 if (retval != MBX_SUCCESS) {
4639 if (retval != MBX_BUSY)
4640 mempool_free(pmb, phba->mbox_mem_pool);
4641 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4642 "2752 KILL_BOARD command failed retval %d\n",
4644 spin_lock_irq(&phba->hbalock);
4645 phba->link_flag &= ~LS_IGNORE_ERATT;
4646 spin_unlock_irq(&phba->hbalock);
4650 spin_lock_irq(&phba->hbalock);
4651 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4652 spin_unlock_irq(&phba->hbalock);
4654 mempool_free(pmb, phba->mbox_mem_pool);
4656 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4657 * attention every 100ms for 3 seconds. If we don't get ERATT after
4658 * 3 seconds we still set HBA_ERROR state because the status of the
4659 * board is now undefined.
4661 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4663 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4665 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4669 del_timer_sync(&psli->mbox_tmo);
4670 if (ha_copy & HA_ERATT) {
4671 writel(HA_ERATT, phba->HAregaddr);
4672 phba->pport->stopped = 1;
4674 spin_lock_irq(&phba->hbalock);
4675 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4676 psli->mbox_active = NULL;
4677 phba->link_flag &= ~LS_IGNORE_ERATT;
4678 spin_unlock_irq(&phba->hbalock);
4680 lpfc_hba_down_post(phba);
4681 phba->link_state = LPFC_HBA_ERROR;
4683 return ha_copy & HA_ERATT ? 0 : 1;
4687 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4688 * @phba: Pointer to HBA context object.
4690 * This function resets the HBA by writing HC_INITFF to the control
4691 * register. After the HBA resets, this function resets all the iocb ring
4692 * indices. This function disables PCI layer parity checking during
4694 * This function returns 0 always.
4695 * The caller is not required to hold any locks.
4698 lpfc_sli_brdreset(struct lpfc_hba *phba)
4700 struct lpfc_sli *psli;
4701 struct lpfc_sli_ring *pring;
4708 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4709 "0325 Reset HBA Data: x%x x%x\n",
4710 (phba->pport) ? phba->pport->port_state : 0,
4713 /* perform board reset */
4714 phba->fc_eventTag = 0;
4715 phba->link_events = 0;
4716 phba->hba_flag |= HBA_NEEDS_CFG_PORT;
4718 phba->pport->fc_myDID = 0;
4719 phba->pport->fc_prevDID = 0;
4722 /* Turn off parity checking and serr during the physical reset */
4723 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value))
4726 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4728 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4730 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4732 /* Now toggle INITFF bit in the Host Control Register */
4733 writel(HC_INITFF, phba->HCregaddr);
4735 readl(phba->HCregaddr); /* flush */
4736 writel(0, phba->HCregaddr);
4737 readl(phba->HCregaddr); /* flush */
4739 /* Restore PCI cmd register */
4740 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4742 /* Initialize relevant SLI info */
4743 for (i = 0; i < psli->num_rings; i++) {
4744 pring = &psli->sli3_ring[i];
4746 pring->sli.sli3.rspidx = 0;
4747 pring->sli.sli3.next_cmdidx = 0;
4748 pring->sli.sli3.local_getidx = 0;
4749 pring->sli.sli3.cmdidx = 0;
4750 pring->missbufcnt = 0;
4753 phba->link_state = LPFC_WARM_START;
4758 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4759 * @phba: Pointer to HBA context object.
4761 * This function resets a SLI4 HBA. This function disables PCI layer parity
4762 * checking during resets the device. The caller is not required to hold
4765 * This function returns 0 on success else returns negative error code.
4768 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4770 struct lpfc_sli *psli = &phba->sli;
4775 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4776 "0295 Reset HBA Data: x%x x%x x%x\n",
4777 phba->pport->port_state, psli->sli_flag,
4780 /* perform board reset */
4781 phba->fc_eventTag = 0;
4782 phba->link_events = 0;
4783 phba->pport->fc_myDID = 0;
4784 phba->pport->fc_prevDID = 0;
4786 spin_lock_irq(&phba->hbalock);
4787 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4788 phba->fcf.fcf_flag = 0;
4789 spin_unlock_irq(&phba->hbalock);
4791 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4792 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4793 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4797 /* Now physically reset the device */
4798 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4799 "0389 Performing PCI function reset!\n");
4801 /* Turn off parity checking and serr during the physical reset */
4802 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value)) {
4803 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4804 "3205 PCI read Config failed\n");
4808 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4809 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4811 /* Perform FCoE PCI function reset before freeing queue memory */
4812 rc = lpfc_pci_function_reset(phba);
4814 /* Restore PCI cmd register */
4815 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4821 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4822 * @phba: Pointer to HBA context object.
4824 * This function is called in the SLI initialization code path to
4825 * restart the HBA. The caller is not required to hold any lock.
4826 * This function writes MBX_RESTART mailbox command to the SLIM and
4827 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4828 * function to free any pending commands. The function enables
4829 * POST only during the first initialization. The function returns zero.
4830 * The function does not guarantee completion of MBX_RESTART mailbox
4831 * command before the return of this function.
4834 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4837 struct lpfc_sli *psli;
4838 volatile uint32_t word0;
4839 void __iomem *to_slim;
4840 uint32_t hba_aer_enabled;
4842 spin_lock_irq(&phba->hbalock);
4844 /* Take PCIe device Advanced Error Reporting (AER) state */
4845 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4850 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4851 "0337 Restart HBA Data: x%x x%x\n",
4852 (phba->pport) ? phba->pport->port_state : 0,
4856 mb = (MAILBOX_t *) &word0;
4857 mb->mbxCommand = MBX_RESTART;
4860 lpfc_reset_barrier(phba);
4862 to_slim = phba->MBslimaddr;
4863 writel(*(uint32_t *) mb, to_slim);
4864 readl(to_slim); /* flush */
4866 /* Only skip post after fc_ffinit is completed */
4867 if (phba->pport && phba->pport->port_state)
4868 word0 = 1; /* This is really setting up word1 */
4870 word0 = 0; /* This is really setting up word1 */
4871 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4872 writel(*(uint32_t *) mb, to_slim);
4873 readl(to_slim); /* flush */
4875 lpfc_sli_brdreset(phba);
4877 phba->pport->stopped = 0;
4878 phba->link_state = LPFC_INIT_START;
4880 spin_unlock_irq(&phba->hbalock);
4882 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4883 psli->stats_start = ktime_get_seconds();
4885 /* Give the INITFF and Post time to settle. */
4888 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4889 if (hba_aer_enabled)
4890 pci_disable_pcie_error_reporting(phba->pcidev);
4892 lpfc_hba_down_post(phba);
4898 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4899 * @phba: Pointer to HBA context object.
4901 * This function is called in the SLI initialization code path to restart
4902 * a SLI4 HBA. The caller is not required to hold any lock.
4903 * At the end of the function, it calls lpfc_hba_down_post function to
4904 * free any pending commands.
4907 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4909 struct lpfc_sli *psli = &phba->sli;
4910 uint32_t hba_aer_enabled;
4914 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4915 "0296 Restart HBA Data: x%x x%x\n",
4916 phba->pport->port_state, psli->sli_flag);
4918 /* Take PCIe device Advanced Error Reporting (AER) state */
4919 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4921 rc = lpfc_sli4_brdreset(phba);
4923 phba->link_state = LPFC_HBA_ERROR;
4924 goto hba_down_queue;
4927 spin_lock_irq(&phba->hbalock);
4928 phba->pport->stopped = 0;
4929 phba->link_state = LPFC_INIT_START;
4931 spin_unlock_irq(&phba->hbalock);
4933 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4934 psli->stats_start = ktime_get_seconds();
4936 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4937 if (hba_aer_enabled)
4938 pci_disable_pcie_error_reporting(phba->pcidev);
4941 lpfc_hba_down_post(phba);
4942 lpfc_sli4_queue_destroy(phba);
4948 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4949 * @phba: Pointer to HBA context object.
4951 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4952 * API jump table function pointer from the lpfc_hba struct.
4955 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4957 return phba->lpfc_sli_brdrestart(phba);
4961 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4962 * @phba: Pointer to HBA context object.
4964 * This function is called after a HBA restart to wait for successful
4965 * restart of the HBA. Successful restart of the HBA is indicated by
4966 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4967 * iteration, the function will restart the HBA again. The function returns
4968 * zero if HBA successfully restarted else returns negative error code.
4971 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4973 uint32_t status, i = 0;
4975 /* Read the HBA Host Status Register */
4976 if (lpfc_readl(phba->HSregaddr, &status))
4979 /* Check status register to see what current state is */
4981 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4983 /* Check every 10ms for 10 retries, then every 100ms for 90
4984 * retries, then every 1 sec for 50 retires for a total of
4985 * ~60 seconds before reset the board again and check every
4986 * 1 sec for 50 retries. The up to 60 seconds before the
4987 * board ready is required by the Falcon FIPS zeroization
4988 * complete, and any reset the board in between shall cause
4989 * restart of zeroization, further delay the board ready.
4992 /* Adapter failed to init, timeout, status reg
4994 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4995 "0436 Adapter failed to init, "
4996 "timeout, status reg x%x, "
4997 "FW Data: A8 x%x AC x%x\n", status,
4998 readl(phba->MBslimaddr + 0xa8),
4999 readl(phba->MBslimaddr + 0xac));
5000 phba->link_state = LPFC_HBA_ERROR;
5004 /* Check to see if any errors occurred during init */
5005 if (status & HS_FFERM) {
5006 /* ERROR: During chipset initialization */
5007 /* Adapter failed to init, chipset, status reg
5009 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5010 "0437 Adapter failed to init, "
5011 "chipset, status reg x%x, "
5012 "FW Data: A8 x%x AC x%x\n", status,
5013 readl(phba->MBslimaddr + 0xa8),
5014 readl(phba->MBslimaddr + 0xac));
5015 phba->link_state = LPFC_HBA_ERROR;
5028 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
5029 lpfc_sli_brdrestart(phba);
5031 /* Read the HBA Host Status Register */
5032 if (lpfc_readl(phba->HSregaddr, &status))
5036 /* Check to see if any errors occurred during init */
5037 if (status & HS_FFERM) {
5038 /* ERROR: During chipset initialization */
5039 /* Adapter failed to init, chipset, status reg <status> */
5040 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5041 "0438 Adapter failed to init, chipset, "
5043 "FW Data: A8 x%x AC x%x\n", status,
5044 readl(phba->MBslimaddr + 0xa8),
5045 readl(phba->MBslimaddr + 0xac));
5046 phba->link_state = LPFC_HBA_ERROR;
5050 phba->hba_flag |= HBA_NEEDS_CFG_PORT;
5052 /* Clear all interrupt enable conditions */
5053 writel(0, phba->HCregaddr);
5054 readl(phba->HCregaddr); /* flush */
5056 /* setup host attn register */
5057 writel(0xffffffff, phba->HAregaddr);
5058 readl(phba->HAregaddr); /* flush */
5063 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
5065 * This function calculates and returns the number of HBQs required to be
5069 lpfc_sli_hbq_count(void)
5071 return ARRAY_SIZE(lpfc_hbq_defs);
5075 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
5077 * This function adds the number of hbq entries in every HBQ to get
5078 * the total number of hbq entries required for the HBA and returns
5082 lpfc_sli_hbq_entry_count(void)
5084 int hbq_count = lpfc_sli_hbq_count();
5088 for (i = 0; i < hbq_count; ++i)
5089 count += lpfc_hbq_defs[i]->entry_count;
5094 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
5096 * This function calculates amount of memory required for all hbq entries
5097 * to be configured and returns the total memory required.
5100 lpfc_sli_hbq_size(void)
5102 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
5106 * lpfc_sli_hbq_setup - configure and initialize HBQs
5107 * @phba: Pointer to HBA context object.
5109 * This function is called during the SLI initialization to configure
5110 * all the HBQs and post buffers to the HBQ. The caller is not
5111 * required to hold any locks. This function will return zero if successful
5112 * else it will return negative error code.
5115 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
5117 int hbq_count = lpfc_sli_hbq_count();
5121 uint32_t hbq_entry_index;
5123 /* Get a Mailbox buffer to setup mailbox
5124 * commands for HBA initialization
5126 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5133 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
5134 phba->link_state = LPFC_INIT_MBX_CMDS;
5135 phba->hbq_in_use = 1;
5137 hbq_entry_index = 0;
5138 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
5139 phba->hbqs[hbqno].next_hbqPutIdx = 0;
5140 phba->hbqs[hbqno].hbqPutIdx = 0;
5141 phba->hbqs[hbqno].local_hbqGetIdx = 0;
5142 phba->hbqs[hbqno].entry_count =
5143 lpfc_hbq_defs[hbqno]->entry_count;
5144 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
5145 hbq_entry_index, pmb);
5146 hbq_entry_index += phba->hbqs[hbqno].entry_count;
5148 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
5149 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
5150 mbxStatus <status>, ring <num> */
5152 lpfc_printf_log(phba, KERN_ERR,
5153 LOG_SLI | LOG_VPORT,
5154 "1805 Adapter failed to init. "
5155 "Data: x%x x%x x%x\n",
5157 pmbox->mbxStatus, hbqno);
5159 phba->link_state = LPFC_HBA_ERROR;
5160 mempool_free(pmb, phba->mbox_mem_pool);
5164 phba->hbq_count = hbq_count;
5166 mempool_free(pmb, phba->mbox_mem_pool);
5168 /* Initially populate or replenish the HBQs */
5169 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
5170 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
5175 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
5176 * @phba: Pointer to HBA context object.
5178 * This function is called during the SLI initialization to configure
5179 * all the HBQs and post buffers to the HBQ. The caller is not
5180 * required to hold any locks. This function will return zero if successful
5181 * else it will return negative error code.
5184 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
5186 phba->hbq_in_use = 1;
5188 * Specific case when the MDS diagnostics is enabled and supported.
5189 * The receive buffer count is truncated to manage the incoming
5192 if (phba->cfg_enable_mds_diags && phba->mds_diags_support)
5193 phba->hbqs[LPFC_ELS_HBQ].entry_count =
5194 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count >> 1;
5196 phba->hbqs[LPFC_ELS_HBQ].entry_count =
5197 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
5198 phba->hbq_count = 1;
5199 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
5200 /* Initially populate or replenish the HBQs */
5205 * lpfc_sli_config_port - Issue config port mailbox command
5206 * @phba: Pointer to HBA context object.
5207 * @sli_mode: sli mode - 2/3
5209 * This function is called by the sli initialization code path
5210 * to issue config_port mailbox command. This function restarts the
5211 * HBA firmware and issues a config_port mailbox command to configure
5212 * the SLI interface in the sli mode specified by sli_mode
5213 * variable. The caller is not required to hold any locks.
5214 * The function returns 0 if successful, else returns negative error
5218 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
5221 uint32_t resetcount = 0, rc = 0, done = 0;
5223 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5225 phba->link_state = LPFC_HBA_ERROR;
5229 phba->sli_rev = sli_mode;
5230 while (resetcount < 2 && !done) {
5231 spin_lock_irq(&phba->hbalock);
5232 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5233 spin_unlock_irq(&phba->hbalock);
5234 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
5235 lpfc_sli_brdrestart(phba);
5236 rc = lpfc_sli_chipset_init(phba);
5240 spin_lock_irq(&phba->hbalock);
5241 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5242 spin_unlock_irq(&phba->hbalock);
5245 /* Call pre CONFIG_PORT mailbox command initialization. A
5246 * value of 0 means the call was successful. Any other
5247 * nonzero value is a failure, but if ERESTART is returned,
5248 * the driver may reset the HBA and try again.
5250 rc = lpfc_config_port_prep(phba);
5251 if (rc == -ERESTART) {
5252 phba->link_state = LPFC_LINK_UNKNOWN;
5257 phba->link_state = LPFC_INIT_MBX_CMDS;
5258 lpfc_config_port(phba, pmb);
5259 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5260 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
5261 LPFC_SLI3_HBQ_ENABLED |
5262 LPFC_SLI3_CRP_ENABLED |
5263 LPFC_SLI3_DSS_ENABLED);
5264 if (rc != MBX_SUCCESS) {
5265 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5266 "0442 Adapter failed to init, mbxCmd x%x "
5267 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
5268 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
5269 spin_lock_irq(&phba->hbalock);
5270 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
5271 spin_unlock_irq(&phba->hbalock);
5274 /* Allow asynchronous mailbox command to go through */
5275 spin_lock_irq(&phba->hbalock);
5276 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5277 spin_unlock_irq(&phba->hbalock);
5280 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
5281 (pmb->u.mb.un.varCfgPort.gasabt == 0))
5282 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5283 "3110 Port did not grant ASABT\n");
5288 goto do_prep_failed;
5290 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
5291 if (!pmb->u.mb.un.varCfgPort.cMA) {
5293 goto do_prep_failed;
5295 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
5296 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
5297 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
5298 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
5299 phba->max_vpi : phba->max_vports;
5303 if (pmb->u.mb.un.varCfgPort.gerbm)
5304 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
5305 if (pmb->u.mb.un.varCfgPort.gcrp)
5306 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
5308 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
5309 phba->port_gp = phba->mbox->us.s3_pgp.port;
5311 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5312 if (pmb->u.mb.un.varCfgPort.gbg == 0) {
5313 phba->cfg_enable_bg = 0;
5314 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
5315 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5316 "0443 Adapter did not grant "
5321 phba->hbq_get = NULL;
5322 phba->port_gp = phba->mbox->us.s2.port;
5326 mempool_free(pmb, phba->mbox_mem_pool);
5332 * lpfc_sli_hba_setup - SLI initialization function
5333 * @phba: Pointer to HBA context object.
5335 * This function is the main SLI initialization function. This function
5336 * is called by the HBA initialization code, HBA reset code and HBA
5337 * error attention handler code. Caller is not required to hold any
5338 * locks. This function issues config_port mailbox command to configure
5339 * the SLI, setup iocb rings and HBQ rings. In the end the function
5340 * calls the config_port_post function to issue init_link mailbox
5341 * command and to start the discovery. The function will return zero
5342 * if successful, else it will return negative error code.
5345 lpfc_sli_hba_setup(struct lpfc_hba *phba)
5351 /* Enable ISR already does config_port because of config_msi mbx */
5352 if (phba->hba_flag & HBA_NEEDS_CFG_PORT) {
5353 rc = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
5356 phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
5358 phba->fcp_embed_io = 0; /* SLI4 FC support only */
5360 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
5361 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
5362 rc = pci_enable_pcie_error_reporting(phba->pcidev);
5364 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5365 "2709 This device supports "
5366 "Advanced Error Reporting (AER)\n");
5367 spin_lock_irq(&phba->hbalock);
5368 phba->hba_flag |= HBA_AER_ENABLED;
5369 spin_unlock_irq(&phba->hbalock);
5371 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5372 "2708 This device does not support "
5373 "Advanced Error Reporting (AER): %d\n",
5375 phba->cfg_aer_support = 0;
5379 if (phba->sli_rev == 3) {
5380 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
5381 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
5383 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
5384 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
5385 phba->sli3_options = 0;
5388 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5389 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
5390 phba->sli_rev, phba->max_vpi);
5391 rc = lpfc_sli_ring_map(phba);
5394 goto lpfc_sli_hba_setup_error;
5396 /* Initialize VPIs. */
5397 if (phba->sli_rev == LPFC_SLI_REV3) {
5399 * The VPI bitmask and physical ID array are allocated
5400 * and initialized once only - at driver load. A port
5401 * reset doesn't need to reinitialize this memory.
5403 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
5404 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
5405 phba->vpi_bmask = kcalloc(longs,
5406 sizeof(unsigned long),
5408 if (!phba->vpi_bmask) {
5410 goto lpfc_sli_hba_setup_error;
5413 phba->vpi_ids = kcalloc(phba->max_vpi + 1,
5416 if (!phba->vpi_ids) {
5417 kfree(phba->vpi_bmask);
5419 goto lpfc_sli_hba_setup_error;
5421 for (i = 0; i < phba->max_vpi; i++)
5422 phba->vpi_ids[i] = i;
5427 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
5428 rc = lpfc_sli_hbq_setup(phba);
5430 goto lpfc_sli_hba_setup_error;
5432 spin_lock_irq(&phba->hbalock);
5433 phba->sli.sli_flag |= LPFC_PROCESS_LA;
5434 spin_unlock_irq(&phba->hbalock);
5436 rc = lpfc_config_port_post(phba);
5438 goto lpfc_sli_hba_setup_error;
5442 lpfc_sli_hba_setup_error:
5443 phba->link_state = LPFC_HBA_ERROR;
5444 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5445 "0445 Firmware initialization failed\n");
5450 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
5451 * @phba: Pointer to HBA context object.
5453 * This function issue a dump mailbox command to read config region
5454 * 23 and parse the records in the region and populate driver
5458 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
5460 LPFC_MBOXQ_t *mboxq;
5461 struct lpfc_dmabuf *mp;
5462 struct lpfc_mqe *mqe;
5463 uint32_t data_length;
5466 /* Program the default value of vlan_id and fc_map */
5467 phba->valid_vlan = 0;
5468 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5469 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5470 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5472 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5476 mqe = &mboxq->u.mqe;
5477 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5479 goto out_free_mboxq;
5482 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
5483 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5485 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5486 "(%d):2571 Mailbox cmd x%x Status x%x "
5487 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5488 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5489 "CQ: x%x x%x x%x x%x\n",
5490 mboxq->vport ? mboxq->vport->vpi : 0,
5491 bf_get(lpfc_mqe_command, mqe),
5492 bf_get(lpfc_mqe_status, mqe),
5493 mqe->un.mb_words[0], mqe->un.mb_words[1],
5494 mqe->un.mb_words[2], mqe->un.mb_words[3],
5495 mqe->un.mb_words[4], mqe->un.mb_words[5],
5496 mqe->un.mb_words[6], mqe->un.mb_words[7],
5497 mqe->un.mb_words[8], mqe->un.mb_words[9],
5498 mqe->un.mb_words[10], mqe->un.mb_words[11],
5499 mqe->un.mb_words[12], mqe->un.mb_words[13],
5500 mqe->un.mb_words[14], mqe->un.mb_words[15],
5501 mqe->un.mb_words[16], mqe->un.mb_words[50],
5503 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5504 mboxq->mcqe.trailer);
5507 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5510 goto out_free_mboxq;
5512 data_length = mqe->un.mb_words[5];
5513 if (data_length > DMP_RGN23_SIZE) {
5514 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5517 goto out_free_mboxq;
5520 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5521 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5526 mempool_free(mboxq, phba->mbox_mem_pool);
5531 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5532 * @phba: pointer to lpfc hba data structure.
5533 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5534 * @vpd: pointer to the memory to hold resulting port vpd data.
5535 * @vpd_size: On input, the number of bytes allocated to @vpd.
5536 * On output, the number of data bytes in @vpd.
5538 * This routine executes a READ_REV SLI4 mailbox command. In
5539 * addition, this routine gets the port vpd data.
5543 * -ENOMEM - could not allocated memory.
5546 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5547 uint8_t *vpd, uint32_t *vpd_size)
5551 struct lpfc_dmabuf *dmabuf;
5552 struct lpfc_mqe *mqe;
5554 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5559 * Get a DMA buffer for the vpd data resulting from the READ_REV
5562 dma_size = *vpd_size;
5563 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, dma_size,
5564 &dmabuf->phys, GFP_KERNEL);
5565 if (!dmabuf->virt) {
5571 * The SLI4 implementation of READ_REV conflicts at word1,
5572 * bits 31:16 and SLI4 adds vpd functionality not present
5573 * in SLI3. This code corrects the conflicts.
5575 lpfc_read_rev(phba, mboxq);
5576 mqe = &mboxq->u.mqe;
5577 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5578 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5579 mqe->un.read_rev.word1 &= 0x0000FFFF;
5580 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5581 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5583 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5585 dma_free_coherent(&phba->pcidev->dev, dma_size,
5586 dmabuf->virt, dmabuf->phys);
5592 * The available vpd length cannot be bigger than the
5593 * DMA buffer passed to the port. Catch the less than
5594 * case and update the caller's size.
5596 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5597 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5599 memcpy(vpd, dmabuf->virt, *vpd_size);
5601 dma_free_coherent(&phba->pcidev->dev, dma_size,
5602 dmabuf->virt, dmabuf->phys);
5608 * lpfc_sli4_get_ctl_attr - Retrieve SLI4 device controller attributes
5609 * @phba: pointer to lpfc hba data structure.
5611 * This routine retrieves SLI4 device physical port name this PCI function
5616 * otherwise - failed to retrieve controller attributes
5619 lpfc_sli4_get_ctl_attr(struct lpfc_hba *phba)
5621 LPFC_MBOXQ_t *mboxq;
5622 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5623 struct lpfc_controller_attribute *cntl_attr;
5624 void *virtaddr = NULL;
5625 uint32_t alloclen, reqlen;
5626 uint32_t shdr_status, shdr_add_status;
5627 union lpfc_sli4_cfg_shdr *shdr;
5630 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5634 /* Send COMMON_GET_CNTL_ATTRIBUTES mbox cmd */
5635 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5636 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5637 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5638 LPFC_SLI4_MBX_NEMBED);
5640 if (alloclen < reqlen) {
5641 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5642 "3084 Allocated DMA memory size (%d) is "
5643 "less than the requested DMA memory size "
5644 "(%d)\n", alloclen, reqlen);
5646 goto out_free_mboxq;
5648 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5649 virtaddr = mboxq->sge_array->addr[0];
5650 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5651 shdr = &mbx_cntl_attr->cfg_shdr;
5652 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5653 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5654 if (shdr_status || shdr_add_status || rc) {
5655 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5656 "3085 Mailbox x%x (x%x/x%x) failed, "
5657 "rc:x%x, status:x%x, add_status:x%x\n",
5658 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5659 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5660 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5661 rc, shdr_status, shdr_add_status);
5663 goto out_free_mboxq;
5666 cntl_attr = &mbx_cntl_attr->cntl_attr;
5667 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5668 phba->sli4_hba.lnk_info.lnk_tp =
5669 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5670 phba->sli4_hba.lnk_info.lnk_no =
5671 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5673 memset(phba->BIOSVersion, 0, sizeof(phba->BIOSVersion));
5674 strlcat(phba->BIOSVersion, (char *)cntl_attr->bios_ver_str,
5675 sizeof(phba->BIOSVersion));
5677 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5678 "3086 lnk_type:%d, lnk_numb:%d, bios_ver:%s\n",
5679 phba->sli4_hba.lnk_info.lnk_tp,
5680 phba->sli4_hba.lnk_info.lnk_no,
5683 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5684 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5686 mempool_free(mboxq, phba->mbox_mem_pool);
5691 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5692 * @phba: pointer to lpfc hba data structure.
5694 * This routine retrieves SLI4 device physical port name this PCI function
5699 * otherwise - failed to retrieve physical port name
5702 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5704 LPFC_MBOXQ_t *mboxq;
5705 struct lpfc_mbx_get_port_name *get_port_name;
5706 uint32_t shdr_status, shdr_add_status;
5707 union lpfc_sli4_cfg_shdr *shdr;
5708 char cport_name = 0;
5711 /* We assume nothing at this point */
5712 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5713 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5715 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5718 /* obtain link type and link number via READ_CONFIG */
5719 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5720 lpfc_sli4_read_config(phba);
5721 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5722 goto retrieve_ppname;
5724 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5725 rc = lpfc_sli4_get_ctl_attr(phba);
5727 goto out_free_mboxq;
5730 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5731 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5732 sizeof(struct lpfc_mbx_get_port_name) -
5733 sizeof(struct lpfc_sli4_cfg_mhdr),
5734 LPFC_SLI4_MBX_EMBED);
5735 get_port_name = &mboxq->u.mqe.un.get_port_name;
5736 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5737 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5738 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5739 phba->sli4_hba.lnk_info.lnk_tp);
5740 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5741 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5742 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5743 if (shdr_status || shdr_add_status || rc) {
5744 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5745 "3087 Mailbox x%x (x%x/x%x) failed: "
5746 "rc:x%x, status:x%x, add_status:x%x\n",
5747 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5748 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5749 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5750 rc, shdr_status, shdr_add_status);
5752 goto out_free_mboxq;
5754 switch (phba->sli4_hba.lnk_info.lnk_no) {
5755 case LPFC_LINK_NUMBER_0:
5756 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5757 &get_port_name->u.response);
5758 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5760 case LPFC_LINK_NUMBER_1:
5761 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5762 &get_port_name->u.response);
5763 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5765 case LPFC_LINK_NUMBER_2:
5766 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5767 &get_port_name->u.response);
5768 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5770 case LPFC_LINK_NUMBER_3:
5771 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5772 &get_port_name->u.response);
5773 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5779 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5780 phba->Port[0] = cport_name;
5781 phba->Port[1] = '\0';
5782 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5783 "3091 SLI get port name: %s\n", phba->Port);
5787 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5788 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5790 mempool_free(mboxq, phba->mbox_mem_pool);
5795 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5796 * @phba: pointer to lpfc hba data structure.
5798 * This routine is called to explicitly arm the SLI4 device's completion and
5802 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5805 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
5806 struct lpfc_sli4_hdw_queue *qp;
5807 struct lpfc_queue *eq;
5809 sli4_hba->sli4_write_cq_db(phba, sli4_hba->mbx_cq, 0, LPFC_QUEUE_REARM);
5810 sli4_hba->sli4_write_cq_db(phba, sli4_hba->els_cq, 0, LPFC_QUEUE_REARM);
5811 if (sli4_hba->nvmels_cq)
5812 sli4_hba->sli4_write_cq_db(phba, sli4_hba->nvmels_cq, 0,
5815 if (sli4_hba->hdwq) {
5816 /* Loop thru all Hardware Queues */
5817 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
5818 qp = &sli4_hba->hdwq[qidx];
5819 /* ARM the corresponding CQ */
5820 sli4_hba->sli4_write_cq_db(phba, qp->io_cq, 0,
5824 /* Loop thru all IRQ vectors */
5825 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
5826 eq = sli4_hba->hba_eq_hdl[qidx].eq;
5827 /* ARM the corresponding EQ */
5828 sli4_hba->sli4_write_eq_db(phba, eq,
5829 0, LPFC_QUEUE_REARM);
5833 if (phba->nvmet_support) {
5834 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5835 sli4_hba->sli4_write_cq_db(phba,
5836 sli4_hba->nvmet_cqset[qidx], 0,
5843 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5844 * @phba: Pointer to HBA context object.
5845 * @type: The resource extent type.
5846 * @extnt_count: buffer to hold port available extent count.
5847 * @extnt_size: buffer to hold element count per extent.
5849 * This function calls the port and retrievs the number of available
5850 * extents and their size for a particular extent type.
5852 * Returns: 0 if successful. Nonzero otherwise.
5855 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5856 uint16_t *extnt_count, uint16_t *extnt_size)
5861 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5864 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5868 /* Find out how many extents are available for this resource type */
5869 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5870 sizeof(struct lpfc_sli4_cfg_mhdr));
5871 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5872 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5873 length, LPFC_SLI4_MBX_EMBED);
5875 /* Send an extents count of 0 - the GET doesn't use it. */
5876 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5877 LPFC_SLI4_MBX_EMBED);
5883 if (!phba->sli4_hba.intr_enable)
5884 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5886 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5887 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5894 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5895 if (bf_get(lpfc_mbox_hdr_status,
5896 &rsrc_info->header.cfg_shdr.response)) {
5897 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5898 "2930 Failed to get resource extents "
5899 "Status 0x%x Add'l Status 0x%x\n",
5900 bf_get(lpfc_mbox_hdr_status,
5901 &rsrc_info->header.cfg_shdr.response),
5902 bf_get(lpfc_mbox_hdr_add_status,
5903 &rsrc_info->header.cfg_shdr.response));
5908 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5910 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5913 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5914 "3162 Retrieved extents type-%d from port: count:%d, "
5915 "size:%d\n", type, *extnt_count, *extnt_size);
5918 mempool_free(mbox, phba->mbox_mem_pool);
5923 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5924 * @phba: Pointer to HBA context object.
5925 * @type: The extent type to check.
5927 * This function reads the current available extents from the port and checks
5928 * if the extent count or extent size has changed since the last access.
5929 * Callers use this routine post port reset to understand if there is a
5930 * extent reprovisioning requirement.
5933 * -Error: error indicates problem.
5934 * 1: Extent count or size has changed.
5938 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5940 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5941 uint16_t size_diff, rsrc_ext_size;
5943 struct lpfc_rsrc_blks *rsrc_entry;
5944 struct list_head *rsrc_blk_list = NULL;
5948 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5955 case LPFC_RSC_TYPE_FCOE_RPI:
5956 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5958 case LPFC_RSC_TYPE_FCOE_VPI:
5959 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5961 case LPFC_RSC_TYPE_FCOE_XRI:
5962 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5964 case LPFC_RSC_TYPE_FCOE_VFI:
5965 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5971 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5973 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5977 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5984 * lpfc_sli4_cfg_post_extnts -
5985 * @phba: Pointer to HBA context object.
5986 * @extnt_cnt: number of available extents.
5987 * @type: the extent type (rpi, xri, vfi, vpi).
5988 * @emb: buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5989 * @mbox: pointer to the caller's allocated mailbox structure.
5991 * This function executes the extents allocation request. It also
5992 * takes care of the amount of memory needed to allocate or get the
5993 * allocated extents. It is the caller's responsibility to evaluate
5997 * -Error: Error value describes the condition found.
6001 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
6002 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
6007 uint32_t alloc_len, mbox_tmo;
6009 /* Calculate the total requested length of the dma memory */
6010 req_len = extnt_cnt * sizeof(uint16_t);
6013 * Calculate the size of an embedded mailbox. The uint32_t
6014 * accounts for extents-specific word.
6016 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6020 * Presume the allocation and response will fit into an embedded
6021 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6023 *emb = LPFC_SLI4_MBX_EMBED;
6024 if (req_len > emb_len) {
6025 req_len = extnt_cnt * sizeof(uint16_t) +
6026 sizeof(union lpfc_sli4_cfg_shdr) +
6028 *emb = LPFC_SLI4_MBX_NEMBED;
6031 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6032 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
6034 if (alloc_len < req_len) {
6035 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6036 "2982 Allocated DMA memory size (x%x) is "
6037 "less than the requested DMA memory "
6038 "size (x%x)\n", alloc_len, req_len);
6041 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
6045 if (!phba->sli4_hba.intr_enable)
6046 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6048 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6049 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6058 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
6059 * @phba: Pointer to HBA context object.
6060 * @type: The resource extent type to allocate.
6062 * This function allocates the number of elements for the specified
6066 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
6069 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
6070 uint16_t rsrc_id, rsrc_start, j, k;
6073 unsigned long longs;
6074 unsigned long *bmask;
6075 struct lpfc_rsrc_blks *rsrc_blks;
6078 struct lpfc_id_range *id_array = NULL;
6079 void *virtaddr = NULL;
6080 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6081 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6082 struct list_head *ext_blk_list;
6084 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
6090 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
6091 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6092 "3009 No available Resource Extents "
6093 "for resource type 0x%x: Count: 0x%x, "
6094 "Size 0x%x\n", type, rsrc_cnt,
6099 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
6100 "2903 Post resource extents type-0x%x: "
6101 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
6103 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6107 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
6114 * Figure out where the response is located. Then get local pointers
6115 * to the response data. The port does not guarantee to respond to
6116 * all extents counts request so update the local variable with the
6117 * allocated count from the port.
6119 if (emb == LPFC_SLI4_MBX_EMBED) {
6120 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6121 id_array = &rsrc_ext->u.rsp.id[0];
6122 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6124 virtaddr = mbox->sge_array->addr[0];
6125 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6126 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6127 id_array = &n_rsrc->id;
6130 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
6131 rsrc_id_cnt = rsrc_cnt * rsrc_size;
6134 * Based on the resource size and count, correct the base and max
6137 length = sizeof(struct lpfc_rsrc_blks);
6139 case LPFC_RSC_TYPE_FCOE_RPI:
6140 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6141 sizeof(unsigned long),
6143 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6147 phba->sli4_hba.rpi_ids = kcalloc(rsrc_id_cnt,
6150 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6151 kfree(phba->sli4_hba.rpi_bmask);
6157 * The next_rpi was initialized with the maximum available
6158 * count but the port may allocate a smaller number. Catch
6159 * that case and update the next_rpi.
6161 phba->sli4_hba.next_rpi = rsrc_id_cnt;
6163 /* Initialize local ptrs for common extent processing later. */
6164 bmask = phba->sli4_hba.rpi_bmask;
6165 ids = phba->sli4_hba.rpi_ids;
6166 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
6168 case LPFC_RSC_TYPE_FCOE_VPI:
6169 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6171 if (unlikely(!phba->vpi_bmask)) {
6175 phba->vpi_ids = kcalloc(rsrc_id_cnt, sizeof(uint16_t),
6177 if (unlikely(!phba->vpi_ids)) {
6178 kfree(phba->vpi_bmask);
6183 /* Initialize local ptrs for common extent processing later. */
6184 bmask = phba->vpi_bmask;
6185 ids = phba->vpi_ids;
6186 ext_blk_list = &phba->lpfc_vpi_blk_list;
6188 case LPFC_RSC_TYPE_FCOE_XRI:
6189 phba->sli4_hba.xri_bmask = kcalloc(longs,
6190 sizeof(unsigned long),
6192 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6196 phba->sli4_hba.max_cfg_param.xri_used = 0;
6197 phba->sli4_hba.xri_ids = kcalloc(rsrc_id_cnt,
6200 if (unlikely(!phba->sli4_hba.xri_ids)) {
6201 kfree(phba->sli4_hba.xri_bmask);
6206 /* Initialize local ptrs for common extent processing later. */
6207 bmask = phba->sli4_hba.xri_bmask;
6208 ids = phba->sli4_hba.xri_ids;
6209 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
6211 case LPFC_RSC_TYPE_FCOE_VFI:
6212 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6213 sizeof(unsigned long),
6215 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6219 phba->sli4_hba.vfi_ids = kcalloc(rsrc_id_cnt,
6222 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6223 kfree(phba->sli4_hba.vfi_bmask);
6228 /* Initialize local ptrs for common extent processing later. */
6229 bmask = phba->sli4_hba.vfi_bmask;
6230 ids = phba->sli4_hba.vfi_ids;
6231 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
6234 /* Unsupported Opcode. Fail call. */
6238 ext_blk_list = NULL;
6243 * Complete initializing the extent configuration with the
6244 * allocated ids assigned to this function. The bitmask serves
6245 * as an index into the array and manages the available ids. The
6246 * array just stores the ids communicated to the port via the wqes.
6248 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
6250 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
6253 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
6256 rsrc_blks = kzalloc(length, GFP_KERNEL);
6257 if (unlikely(!rsrc_blks)) {
6263 rsrc_blks->rsrc_start = rsrc_id;
6264 rsrc_blks->rsrc_size = rsrc_size;
6265 list_add_tail(&rsrc_blks->list, ext_blk_list);
6266 rsrc_start = rsrc_id;
6267 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
6268 phba->sli4_hba.io_xri_start = rsrc_start +
6269 lpfc_sli4_get_iocb_cnt(phba);
6272 while (rsrc_id < (rsrc_start + rsrc_size)) {
6277 /* Entire word processed. Get next word.*/
6282 lpfc_sli4_mbox_cmd_free(phba, mbox);
6289 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
6290 * @phba: Pointer to HBA context object.
6291 * @type: the extent's type.
6293 * This function deallocates all extents of a particular resource type.
6294 * SLI4 does not allow for deallocating a particular extent range. It
6295 * is the caller's responsibility to release all kernel memory resources.
6298 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
6301 uint32_t length, mbox_tmo = 0;
6303 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
6304 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
6306 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6311 * This function sends an embedded mailbox because it only sends the
6312 * the resource type. All extents of this type are released by the
6315 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
6316 sizeof(struct lpfc_sli4_cfg_mhdr));
6317 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6318 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
6319 length, LPFC_SLI4_MBX_EMBED);
6321 /* Send an extents count of 0 - the dealloc doesn't use it. */
6322 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6323 LPFC_SLI4_MBX_EMBED);
6328 if (!phba->sli4_hba.intr_enable)
6329 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6331 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6332 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6339 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
6340 if (bf_get(lpfc_mbox_hdr_status,
6341 &dealloc_rsrc->header.cfg_shdr.response)) {
6342 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6343 "2919 Failed to release resource extents "
6344 "for type %d - Status 0x%x Add'l Status 0x%x. "
6345 "Resource memory not released.\n",
6347 bf_get(lpfc_mbox_hdr_status,
6348 &dealloc_rsrc->header.cfg_shdr.response),
6349 bf_get(lpfc_mbox_hdr_add_status,
6350 &dealloc_rsrc->header.cfg_shdr.response));
6355 /* Release kernel memory resources for the specific type. */
6357 case LPFC_RSC_TYPE_FCOE_VPI:
6358 kfree(phba->vpi_bmask);
6359 kfree(phba->vpi_ids);
6360 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6361 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6362 &phba->lpfc_vpi_blk_list, list) {
6363 list_del_init(&rsrc_blk->list);
6366 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6368 case LPFC_RSC_TYPE_FCOE_XRI:
6369 kfree(phba->sli4_hba.xri_bmask);
6370 kfree(phba->sli4_hba.xri_ids);
6371 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6372 &phba->sli4_hba.lpfc_xri_blk_list, list) {
6373 list_del_init(&rsrc_blk->list);
6377 case LPFC_RSC_TYPE_FCOE_VFI:
6378 kfree(phba->sli4_hba.vfi_bmask);
6379 kfree(phba->sli4_hba.vfi_ids);
6380 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6381 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6382 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
6383 list_del_init(&rsrc_blk->list);
6387 case LPFC_RSC_TYPE_FCOE_RPI:
6388 /* RPI bitmask and physical id array are cleaned up earlier. */
6389 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6390 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
6391 list_del_init(&rsrc_blk->list);
6399 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6402 mempool_free(mbox, phba->mbox_mem_pool);
6407 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
6412 len = sizeof(struct lpfc_mbx_set_feature) -
6413 sizeof(struct lpfc_sli4_cfg_mhdr);
6414 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6415 LPFC_MBOX_OPCODE_SET_FEATURES, len,
6416 LPFC_SLI4_MBX_EMBED);
6419 case LPFC_SET_UE_RECOVERY:
6420 bf_set(lpfc_mbx_set_feature_UER,
6421 &mbox->u.mqe.un.set_feature, 1);
6422 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
6423 mbox->u.mqe.un.set_feature.param_len = 8;
6425 case LPFC_SET_MDS_DIAGS:
6426 bf_set(lpfc_mbx_set_feature_mds,
6427 &mbox->u.mqe.un.set_feature, 1);
6428 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
6429 &mbox->u.mqe.un.set_feature, 1);
6430 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
6431 mbox->u.mqe.un.set_feature.param_len = 8;
6433 case LPFC_SET_DUAL_DUMP:
6434 bf_set(lpfc_mbx_set_feature_dd,
6435 &mbox->u.mqe.un.set_feature, LPFC_ENABLE_DUAL_DUMP);
6436 bf_set(lpfc_mbx_set_feature_ddquery,
6437 &mbox->u.mqe.un.set_feature, 0);
6438 mbox->u.mqe.un.set_feature.feature = LPFC_SET_DUAL_DUMP;
6439 mbox->u.mqe.un.set_feature.param_len = 4;
6447 * lpfc_ras_stop_fwlog: Disable FW logging by the adapter
6448 * @phba: Pointer to HBA context object.
6450 * Disable FW logging into host memory on the adapter. To
6451 * be done before reading logs from the host memory.
6454 lpfc_ras_stop_fwlog(struct lpfc_hba *phba)
6456 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6458 spin_lock_irq(&phba->hbalock);
6459 ras_fwlog->state = INACTIVE;
6460 spin_unlock_irq(&phba->hbalock);
6462 /* Disable FW logging to host memory */
6463 writel(LPFC_CTL_PDEV_CTL_DDL_RAS,
6464 phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
6466 /* Wait 10ms for firmware to stop using DMA buffer */
6467 usleep_range(10 * 1000, 20 * 1000);
6471 * lpfc_sli4_ras_dma_free - Free memory allocated for FW logging.
6472 * @phba: Pointer to HBA context object.
6474 * This function is called to free memory allocated for RAS FW logging
6475 * support in the driver.
6478 lpfc_sli4_ras_dma_free(struct lpfc_hba *phba)
6480 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6481 struct lpfc_dmabuf *dmabuf, *next;
6483 if (!list_empty(&ras_fwlog->fwlog_buff_list)) {
6484 list_for_each_entry_safe(dmabuf, next,
6485 &ras_fwlog->fwlog_buff_list,
6487 list_del(&dmabuf->list);
6488 dma_free_coherent(&phba->pcidev->dev,
6489 LPFC_RAS_MAX_ENTRY_SIZE,
6490 dmabuf->virt, dmabuf->phys);
6495 if (ras_fwlog->lwpd.virt) {
6496 dma_free_coherent(&phba->pcidev->dev,
6497 sizeof(uint32_t) * 2,
6498 ras_fwlog->lwpd.virt,
6499 ras_fwlog->lwpd.phys);
6500 ras_fwlog->lwpd.virt = NULL;
6503 spin_lock_irq(&phba->hbalock);
6504 ras_fwlog->state = INACTIVE;
6505 spin_unlock_irq(&phba->hbalock);
6509 * lpfc_sli4_ras_dma_alloc: Allocate memory for FW support
6510 * @phba: Pointer to HBA context object.
6511 * @fwlog_buff_count: Count of buffers to be created.
6513 * This routine DMA memory for Log Write Position Data[LPWD] and buffer
6514 * to update FW log is posted to the adapter.
6515 * Buffer count is calculated based on module param ras_fwlog_buffsize
6516 * Size of each buffer posted to FW is 64K.
6520 lpfc_sli4_ras_dma_alloc(struct lpfc_hba *phba,
6521 uint32_t fwlog_buff_count)
6523 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6524 struct lpfc_dmabuf *dmabuf;
6527 /* Initialize List */
6528 INIT_LIST_HEAD(&ras_fwlog->fwlog_buff_list);
6530 /* Allocate memory for the LWPD */
6531 ras_fwlog->lwpd.virt = dma_alloc_coherent(&phba->pcidev->dev,
6532 sizeof(uint32_t) * 2,
6533 &ras_fwlog->lwpd.phys,
6535 if (!ras_fwlog->lwpd.virt) {
6536 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6537 "6185 LWPD Memory Alloc Failed\n");
6542 ras_fwlog->fw_buffcount = fwlog_buff_count;
6543 for (i = 0; i < ras_fwlog->fw_buffcount; i++) {
6544 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
6548 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6549 "6186 Memory Alloc failed FW logging");
6553 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6554 LPFC_RAS_MAX_ENTRY_SIZE,
6555 &dmabuf->phys, GFP_KERNEL);
6556 if (!dmabuf->virt) {
6559 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6560 "6187 DMA Alloc Failed FW logging");
6563 dmabuf->buffer_tag = i;
6564 list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
6569 lpfc_sli4_ras_dma_free(phba);
6575 * lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
6576 * @phba: pointer to lpfc hba data structure.
6577 * @pmb: pointer to the driver internal queue element for mailbox command.
6579 * Completion handler for driver's RAS MBX command to the device.
6582 lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6585 union lpfc_sli4_cfg_shdr *shdr;
6586 uint32_t shdr_status, shdr_add_status;
6587 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6591 shdr = (union lpfc_sli4_cfg_shdr *)
6592 &pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
6593 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6594 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6596 if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
6597 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6598 "6188 FW LOG mailbox "
6599 "completed with status x%x add_status x%x,"
6600 " mbx status x%x\n",
6601 shdr_status, shdr_add_status, mb->mbxStatus);
6603 ras_fwlog->ras_hwsupport = false;
6607 spin_lock_irq(&phba->hbalock);
6608 ras_fwlog->state = ACTIVE;
6609 spin_unlock_irq(&phba->hbalock);
6610 mempool_free(pmb, phba->mbox_mem_pool);
6615 /* Free RAS DMA memory */
6616 lpfc_sli4_ras_dma_free(phba);
6617 mempool_free(pmb, phba->mbox_mem_pool);
6621 * lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
6622 * @phba: pointer to lpfc hba data structure.
6623 * @fwlog_level: Logging verbosity level.
6624 * @fwlog_enable: Enable/Disable logging.
6626 * Initialize memory and post mailbox command to enable FW logging in host
6630 lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
6631 uint32_t fwlog_level,
6632 uint32_t fwlog_enable)
6634 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6635 struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
6636 struct lpfc_dmabuf *dmabuf;
6638 uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
6641 spin_lock_irq(&phba->hbalock);
6642 ras_fwlog->state = INACTIVE;
6643 spin_unlock_irq(&phba->hbalock);
6645 fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
6646 phba->cfg_ras_fwlog_buffsize);
6647 fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
6650 * If re-enabling FW logging support use earlier allocated
6651 * DMA buffers while posting MBX command.
6653 if (!ras_fwlog->lwpd.virt) {
6654 rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
6656 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6657 "6189 FW Log Memory Allocation Failed");
6662 /* Setup Mailbox command */
6663 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6665 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6666 "6190 RAS MBX Alloc Failed");
6671 ras_fwlog->fw_loglevel = fwlog_level;
6672 len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
6673 sizeof(struct lpfc_sli4_cfg_mhdr));
6675 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
6676 LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
6677 len, LPFC_SLI4_MBX_EMBED);
6679 mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
6680 bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
6682 bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
6683 ras_fwlog->fw_loglevel);
6684 bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
6685 ras_fwlog->fw_buffcount);
6686 bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
6687 LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
6689 /* Update DMA buffer address */
6690 list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
6691 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
6693 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
6694 putPaddrLow(dmabuf->phys);
6696 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
6697 putPaddrHigh(dmabuf->phys);
6700 /* Update LPWD address */
6701 mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
6702 mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
6704 spin_lock_irq(&phba->hbalock);
6705 ras_fwlog->state = REG_INPROGRESS;
6706 spin_unlock_irq(&phba->hbalock);
6707 mbox->vport = phba->pport;
6708 mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
6710 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6712 if (rc == MBX_NOT_FINISHED) {
6713 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6714 "6191 FW-Log Mailbox failed. "
6715 "status %d mbxStatus : x%x", rc,
6716 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6717 mempool_free(mbox, phba->mbox_mem_pool);
6724 lpfc_sli4_ras_dma_free(phba);
6730 * lpfc_sli4_ras_setup - Check if RAS supported on the adapter
6731 * @phba: Pointer to HBA context object.
6733 * Check if RAS is supported on the adapter and initialize it.
6736 lpfc_sli4_ras_setup(struct lpfc_hba *phba)
6738 /* Check RAS FW Log needs to be enabled or not */
6739 if (lpfc_check_fwlog_support(phba))
6742 lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
6743 LPFC_RAS_ENABLE_LOGGING);
6747 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
6748 * @phba: Pointer to HBA context object.
6750 * This function allocates all SLI4 resource identifiers.
6753 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
6755 int i, rc, error = 0;
6756 uint16_t count, base;
6757 unsigned long longs;
6759 if (!phba->sli4_hba.rpi_hdrs_in_use)
6760 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
6761 if (phba->sli4_hba.extents_in_use) {
6763 * The port supports resource extents. The XRI, VPI, VFI, RPI
6764 * resource extent count must be read and allocated before
6765 * provisioning the resource id arrays.
6767 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6768 LPFC_IDX_RSRC_RDY) {
6770 * Extent-based resources are set - the driver could
6771 * be in a port reset. Figure out if any corrective
6772 * actions need to be taken.
6774 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6775 LPFC_RSC_TYPE_FCOE_VFI);
6778 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6779 LPFC_RSC_TYPE_FCOE_VPI);
6782 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6783 LPFC_RSC_TYPE_FCOE_XRI);
6786 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6787 LPFC_RSC_TYPE_FCOE_RPI);
6792 * It's possible that the number of resources
6793 * provided to this port instance changed between
6794 * resets. Detect this condition and reallocate
6795 * resources. Otherwise, there is no action.
6798 lpfc_printf_log(phba, KERN_INFO,
6799 LOG_MBOX | LOG_INIT,
6800 "2931 Detected extent resource "
6801 "change. Reallocating all "
6803 rc = lpfc_sli4_dealloc_extent(phba,
6804 LPFC_RSC_TYPE_FCOE_VFI);
6805 rc = lpfc_sli4_dealloc_extent(phba,
6806 LPFC_RSC_TYPE_FCOE_VPI);
6807 rc = lpfc_sli4_dealloc_extent(phba,
6808 LPFC_RSC_TYPE_FCOE_XRI);
6809 rc = lpfc_sli4_dealloc_extent(phba,
6810 LPFC_RSC_TYPE_FCOE_RPI);
6815 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6819 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6823 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6827 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6830 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6835 * The port does not support resource extents. The XRI, VPI,
6836 * VFI, RPI resource ids were determined from READ_CONFIG.
6837 * Just allocate the bitmasks and provision the resource id
6838 * arrays. If a port reset is active, the resources don't
6839 * need any action - just exit.
6841 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6842 LPFC_IDX_RSRC_RDY) {
6843 lpfc_sli4_dealloc_resource_identifiers(phba);
6844 lpfc_sli4_remove_rpis(phba);
6847 count = phba->sli4_hba.max_cfg_param.max_rpi;
6849 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6850 "3279 Invalid provisioning of "
6855 base = phba->sli4_hba.max_cfg_param.rpi_base;
6856 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6857 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6858 sizeof(unsigned long),
6860 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6864 phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
6866 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6868 goto free_rpi_bmask;
6871 for (i = 0; i < count; i++)
6872 phba->sli4_hba.rpi_ids[i] = base + i;
6875 count = phba->sli4_hba.max_cfg_param.max_vpi;
6877 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6878 "3280 Invalid provisioning of "
6883 base = phba->sli4_hba.max_cfg_param.vpi_base;
6884 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6885 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6887 if (unlikely(!phba->vpi_bmask)) {
6891 phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
6893 if (unlikely(!phba->vpi_ids)) {
6895 goto free_vpi_bmask;
6898 for (i = 0; i < count; i++)
6899 phba->vpi_ids[i] = base + i;
6902 count = phba->sli4_hba.max_cfg_param.max_xri;
6904 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6905 "3281 Invalid provisioning of "
6910 base = phba->sli4_hba.max_cfg_param.xri_base;
6911 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6912 phba->sli4_hba.xri_bmask = kcalloc(longs,
6913 sizeof(unsigned long),
6915 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6919 phba->sli4_hba.max_cfg_param.xri_used = 0;
6920 phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
6922 if (unlikely(!phba->sli4_hba.xri_ids)) {
6924 goto free_xri_bmask;
6927 for (i = 0; i < count; i++)
6928 phba->sli4_hba.xri_ids[i] = base + i;
6931 count = phba->sli4_hba.max_cfg_param.max_vfi;
6933 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6934 "3282 Invalid provisioning of "
6939 base = phba->sli4_hba.max_cfg_param.vfi_base;
6940 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6941 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6942 sizeof(unsigned long),
6944 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6948 phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
6950 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6952 goto free_vfi_bmask;
6955 for (i = 0; i < count; i++)
6956 phba->sli4_hba.vfi_ids[i] = base + i;
6959 * Mark all resources ready. An HBA reset doesn't need
6960 * to reset the initialization.
6962 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6968 kfree(phba->sli4_hba.vfi_bmask);
6969 phba->sli4_hba.vfi_bmask = NULL;
6971 kfree(phba->sli4_hba.xri_ids);
6972 phba->sli4_hba.xri_ids = NULL;
6974 kfree(phba->sli4_hba.xri_bmask);
6975 phba->sli4_hba.xri_bmask = NULL;
6977 kfree(phba->vpi_ids);
6978 phba->vpi_ids = NULL;
6980 kfree(phba->vpi_bmask);
6981 phba->vpi_bmask = NULL;
6983 kfree(phba->sli4_hba.rpi_ids);
6984 phba->sli4_hba.rpi_ids = NULL;
6986 kfree(phba->sli4_hba.rpi_bmask);
6987 phba->sli4_hba.rpi_bmask = NULL;
6993 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6994 * @phba: Pointer to HBA context object.
6996 * This function allocates the number of elements for the specified
7000 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
7002 if (phba->sli4_hba.extents_in_use) {
7003 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
7004 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
7005 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
7006 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
7008 kfree(phba->vpi_bmask);
7009 phba->sli4_hba.max_cfg_param.vpi_used = 0;
7010 kfree(phba->vpi_ids);
7011 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
7012 kfree(phba->sli4_hba.xri_bmask);
7013 kfree(phba->sli4_hba.xri_ids);
7014 kfree(phba->sli4_hba.vfi_bmask);
7015 kfree(phba->sli4_hba.vfi_ids);
7016 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
7017 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
7024 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
7025 * @phba: Pointer to HBA context object.
7026 * @type: The resource extent type.
7027 * @extnt_cnt: buffer to hold port extent count response
7028 * @extnt_size: buffer to hold port extent size response.
7030 * This function calls the port to read the host allocated extents
7031 * for a particular type.
7034 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
7035 uint16_t *extnt_cnt, uint16_t *extnt_size)
7039 uint16_t curr_blks = 0;
7040 uint32_t req_len, emb_len;
7041 uint32_t alloc_len, mbox_tmo;
7042 struct list_head *blk_list_head;
7043 struct lpfc_rsrc_blks *rsrc_blk;
7045 void *virtaddr = NULL;
7046 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
7047 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
7048 union lpfc_sli4_cfg_shdr *shdr;
7051 case LPFC_RSC_TYPE_FCOE_VPI:
7052 blk_list_head = &phba->lpfc_vpi_blk_list;
7054 case LPFC_RSC_TYPE_FCOE_XRI:
7055 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
7057 case LPFC_RSC_TYPE_FCOE_VFI:
7058 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
7060 case LPFC_RSC_TYPE_FCOE_RPI:
7061 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
7067 /* Count the number of extents currently allocatd for this type. */
7068 list_for_each_entry(rsrc_blk, blk_list_head, list) {
7069 if (curr_blks == 0) {
7071 * The GET_ALLOCATED mailbox does not return the size,
7072 * just the count. The size should be just the size
7073 * stored in the current allocated block and all sizes
7074 * for an extent type are the same so set the return
7077 *extnt_size = rsrc_blk->rsrc_size;
7083 * Calculate the size of an embedded mailbox. The uint32_t
7084 * accounts for extents-specific word.
7086 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
7090 * Presume the allocation and response will fit into an embedded
7091 * mailbox. If not true, reconfigure to a non-embedded mailbox.
7093 emb = LPFC_SLI4_MBX_EMBED;
7095 if (req_len > emb_len) {
7096 req_len = curr_blks * sizeof(uint16_t) +
7097 sizeof(union lpfc_sli4_cfg_shdr) +
7099 emb = LPFC_SLI4_MBX_NEMBED;
7102 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7105 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
7107 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7108 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
7110 if (alloc_len < req_len) {
7111 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7112 "2983 Allocated DMA memory size (x%x) is "
7113 "less than the requested DMA memory "
7114 "size (x%x)\n", alloc_len, req_len);
7118 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
7124 if (!phba->sli4_hba.intr_enable)
7125 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
7127 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
7128 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
7137 * Figure out where the response is located. Then get local pointers
7138 * to the response data. The port does not guarantee to respond to
7139 * all extents counts request so update the local variable with the
7140 * allocated count from the port.
7142 if (emb == LPFC_SLI4_MBX_EMBED) {
7143 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
7144 shdr = &rsrc_ext->header.cfg_shdr;
7145 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
7147 virtaddr = mbox->sge_array->addr[0];
7148 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
7149 shdr = &n_rsrc->cfg_shdr;
7150 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
7153 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
7154 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7155 "2984 Failed to read allocated resources "
7156 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
7158 bf_get(lpfc_mbox_hdr_status, &shdr->response),
7159 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
7164 lpfc_sli4_mbox_cmd_free(phba, mbox);
7169 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
7170 * @phba: pointer to lpfc hba data structure.
7171 * @sgl_list: linked link of sgl buffers to post
7172 * @cnt: number of linked list buffers
7174 * This routine walks the list of buffers that have been allocated and
7175 * repost them to the port by using SGL block post. This is needed after a
7176 * pci_function_reset/warm_start or start. It attempts to construct blocks
7177 * of buffer sgls which contains contiguous xris and uses the non-embedded
7178 * SGL block post mailbox commands to post them to the port. For single
7179 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
7180 * mailbox command for posting.
7182 * Returns: 0 = success, non-zero failure.
7185 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
7186 struct list_head *sgl_list, int cnt)
7188 struct lpfc_sglq *sglq_entry = NULL;
7189 struct lpfc_sglq *sglq_entry_next = NULL;
7190 struct lpfc_sglq *sglq_entry_first = NULL;
7191 int status, total_cnt;
7192 int post_cnt = 0, num_posted = 0, block_cnt = 0;
7193 int last_xritag = NO_XRI;
7194 LIST_HEAD(prep_sgl_list);
7195 LIST_HEAD(blck_sgl_list);
7196 LIST_HEAD(allc_sgl_list);
7197 LIST_HEAD(post_sgl_list);
7198 LIST_HEAD(free_sgl_list);
7200 spin_lock_irq(&phba->hbalock);
7201 spin_lock(&phba->sli4_hba.sgl_list_lock);
7202 list_splice_init(sgl_list, &allc_sgl_list);
7203 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7204 spin_unlock_irq(&phba->hbalock);
7207 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
7208 &allc_sgl_list, list) {
7209 list_del_init(&sglq_entry->list);
7211 if ((last_xritag != NO_XRI) &&
7212 (sglq_entry->sli4_xritag != last_xritag + 1)) {
7213 /* a hole in xri block, form a sgl posting block */
7214 list_splice_init(&prep_sgl_list, &blck_sgl_list);
7215 post_cnt = block_cnt - 1;
7216 /* prepare list for next posting block */
7217 list_add_tail(&sglq_entry->list, &prep_sgl_list);
7220 /* prepare list for next posting block */
7221 list_add_tail(&sglq_entry->list, &prep_sgl_list);
7222 /* enough sgls for non-embed sgl mbox command */
7223 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
7224 list_splice_init(&prep_sgl_list,
7226 post_cnt = block_cnt;
7232 /* keep track of last sgl's xritag */
7233 last_xritag = sglq_entry->sli4_xritag;
7235 /* end of repost sgl list condition for buffers */
7236 if (num_posted == total_cnt) {
7237 if (post_cnt == 0) {
7238 list_splice_init(&prep_sgl_list,
7240 post_cnt = block_cnt;
7241 } else if (block_cnt == 1) {
7242 status = lpfc_sli4_post_sgl(phba,
7243 sglq_entry->phys, 0,
7244 sglq_entry->sli4_xritag);
7246 /* successful, put sgl to posted list */
7247 list_add_tail(&sglq_entry->list,
7250 /* Failure, put sgl to free list */
7251 lpfc_printf_log(phba, KERN_WARNING,
7253 "3159 Failed to post "
7254 "sgl, xritag:x%x\n",
7255 sglq_entry->sli4_xritag);
7256 list_add_tail(&sglq_entry->list,
7263 /* continue until a nembed page worth of sgls */
7267 /* post the buffer list sgls as a block */
7268 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
7272 /* success, put sgl list to posted sgl list */
7273 list_splice_init(&blck_sgl_list, &post_sgl_list);
7275 /* Failure, put sgl list to free sgl list */
7276 sglq_entry_first = list_first_entry(&blck_sgl_list,
7279 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7280 "3160 Failed to post sgl-list, "
7282 sglq_entry_first->sli4_xritag,
7283 (sglq_entry_first->sli4_xritag +
7285 list_splice_init(&blck_sgl_list, &free_sgl_list);
7286 total_cnt -= post_cnt;
7289 /* don't reset xirtag due to hole in xri block */
7291 last_xritag = NO_XRI;
7293 /* reset sgl post count for next round of posting */
7297 /* free the sgls failed to post */
7298 lpfc_free_sgl_list(phba, &free_sgl_list);
7300 /* push sgls posted to the available list */
7301 if (!list_empty(&post_sgl_list)) {
7302 spin_lock_irq(&phba->hbalock);
7303 spin_lock(&phba->sli4_hba.sgl_list_lock);
7304 list_splice_init(&post_sgl_list, sgl_list);
7305 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7306 spin_unlock_irq(&phba->hbalock);
7308 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7309 "3161 Failure to post sgl to port.\n");
7313 /* return the number of XRIs actually posted */
7318 * lpfc_sli4_repost_io_sgl_list - Repost all the allocated nvme buffer sgls
7319 * @phba: pointer to lpfc hba data structure.
7321 * This routine walks the list of nvme buffers that have been allocated and
7322 * repost them to the port by using SGL block post. This is needed after a
7323 * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine
7324 * is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list
7325 * to the lpfc_io_buf_list. If the repost fails, reject all nvme buffers.
7327 * Returns: 0 = success, non-zero failure.
7330 lpfc_sli4_repost_io_sgl_list(struct lpfc_hba *phba)
7332 LIST_HEAD(post_nblist);
7333 int num_posted, rc = 0;
7335 /* get all NVME buffers need to repost to a local list */
7336 lpfc_io_buf_flush(phba, &post_nblist);
7338 /* post the list of nvme buffer sgls to port if available */
7339 if (!list_empty(&post_nblist)) {
7340 num_posted = lpfc_sli4_post_io_sgl_list(
7341 phba, &post_nblist, phba->sli4_hba.io_xri_cnt);
7342 /* failed to post any nvme buffer, return error */
7343 if (num_posted == 0)
7350 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
7354 len = sizeof(struct lpfc_mbx_set_host_data) -
7355 sizeof(struct lpfc_sli4_cfg_mhdr);
7356 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7357 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
7358 LPFC_SLI4_MBX_EMBED);
7360 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
7361 mbox->u.mqe.un.set_host_data.param_len =
7362 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
7363 snprintf(mbox->u.mqe.un.set_host_data.data,
7364 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
7365 "Linux %s v"LPFC_DRIVER_VERSION,
7366 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
7370 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
7371 struct lpfc_queue *drq, int count, int idx)
7374 struct lpfc_rqe hrqe;
7375 struct lpfc_rqe drqe;
7376 struct lpfc_rqb *rqbp;
7377 unsigned long flags;
7378 struct rqb_dmabuf *rqb_buffer;
7379 LIST_HEAD(rqb_buf_list);
7382 for (i = 0; i < count; i++) {
7383 spin_lock_irqsave(&phba->hbalock, flags);
7384 /* IF RQ is already full, don't bother */
7385 if (rqbp->buffer_count + i >= rqbp->entry_count - 1) {
7386 spin_unlock_irqrestore(&phba->hbalock, flags);
7389 spin_unlock_irqrestore(&phba->hbalock, flags);
7391 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
7394 rqb_buffer->hrq = hrq;
7395 rqb_buffer->drq = drq;
7396 rqb_buffer->idx = idx;
7397 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
7400 spin_lock_irqsave(&phba->hbalock, flags);
7401 while (!list_empty(&rqb_buf_list)) {
7402 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
7405 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
7406 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
7407 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
7408 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
7409 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
7411 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7412 "6421 Cannot post to HRQ %d: %x %x %x "
7420 rqbp->rqb_free_buffer(phba, rqb_buffer);
7422 list_add_tail(&rqb_buffer->hbuf.list,
7423 &rqbp->rqb_buffer_list);
7424 rqbp->buffer_count++;
7427 spin_unlock_irqrestore(&phba->hbalock, flags);
7432 * lpfc_init_idle_stat_hb - Initialize idle_stat tracking
7433 * @phba: pointer to lpfc hba data structure.
7435 * This routine initializes the per-cq idle_stat to dynamically dictate
7436 * polling decisions.
7441 static void lpfc_init_idle_stat_hb(struct lpfc_hba *phba)
7444 struct lpfc_sli4_hdw_queue *hdwq;
7445 struct lpfc_queue *cq;
7446 struct lpfc_idle_stat *idle_stat;
7449 for_each_present_cpu(i) {
7450 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
7453 /* Skip if we've already handled this cq's primary CPU */
7457 idle_stat = &phba->sli4_hba.idle_stat[i];
7459 idle_stat->prev_idle = get_cpu_idle_time(i, &wall, 1);
7460 idle_stat->prev_wall = wall;
7462 if (phba->nvmet_support)
7463 cq->poll_mode = LPFC_QUEUE_WORK;
7465 cq->poll_mode = LPFC_IRQ_POLL;
7468 if (!phba->nvmet_support)
7469 schedule_delayed_work(&phba->idle_stat_delay_work,
7470 msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
7473 static void lpfc_sli4_dip(struct lpfc_hba *phba)
7477 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7478 if (if_type == LPFC_SLI_INTF_IF_TYPE_2 ||
7479 if_type == LPFC_SLI_INTF_IF_TYPE_6) {
7480 struct lpfc_register reg_data;
7482 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7486 if (bf_get(lpfc_sliport_status_dip, ®_data))
7487 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7488 "2904 Firmware Dump Image Present"
7494 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
7495 * @phba: Pointer to HBA context object.
7497 * This function is the main SLI4 device initialization PCI function. This
7498 * function is called by the HBA initialization code, HBA reset code and
7499 * HBA error attention handler code. Caller is not required to hold any
7503 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
7505 int rc, i, cnt, len, dd;
7506 LPFC_MBOXQ_t *mboxq;
7507 struct lpfc_mqe *mqe;
7510 uint32_t ftr_rsp = 0;
7511 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
7512 struct lpfc_vport *vport = phba->pport;
7513 struct lpfc_dmabuf *mp;
7514 struct lpfc_rqb *rqbp;
7516 /* Perform a PCI function reset to start from clean */
7517 rc = lpfc_pci_function_reset(phba);
7521 /* Check the HBA Host Status Register for readyness */
7522 rc = lpfc_sli4_post_status_check(phba);
7526 spin_lock_irq(&phba->hbalock);
7527 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
7528 spin_unlock_irq(&phba->hbalock);
7531 lpfc_sli4_dip(phba);
7534 * Allocate a single mailbox container for initializing the
7537 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7541 /* Issue READ_REV to collect vpd and FW information. */
7542 vpd_size = SLI4_PAGE_SIZE;
7543 vpd = kzalloc(vpd_size, GFP_KERNEL);
7549 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
7555 mqe = &mboxq->u.mqe;
7556 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
7557 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
7558 phba->hba_flag |= HBA_FCOE_MODE;
7559 phba->fcp_embed_io = 0; /* SLI4 FC support only */
7561 phba->hba_flag &= ~HBA_FCOE_MODE;
7564 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
7566 phba->hba_flag |= HBA_FIP_SUPPORT;
7568 phba->hba_flag &= ~HBA_FIP_SUPPORT;
7570 phba->hba_flag &= ~HBA_IOQ_FLUSH;
7572 if (phba->sli_rev != LPFC_SLI_REV4) {
7573 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7574 "0376 READ_REV Error. SLI Level %d "
7575 "FCoE enabled %d\n",
7576 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
7583 * Continue initialization with default values even if driver failed
7584 * to read FCoE param config regions, only read parameters if the
7587 if (phba->hba_flag & HBA_FCOE_MODE &&
7588 lpfc_sli4_read_fcoe_params(phba))
7589 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
7590 "2570 Failed to read FCoE parameters\n");
7593 * Retrieve sli4 device physical port name, failure of doing it
7594 * is considered as non-fatal.
7596 rc = lpfc_sli4_retrieve_pport_name(phba);
7598 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7599 "3080 Successful retrieving SLI4 device "
7600 "physical port name: %s.\n", phba->Port);
7602 rc = lpfc_sli4_get_ctl_attr(phba);
7604 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7605 "8351 Successful retrieving SLI4 device "
7609 * Evaluate the read rev and vpd data. Populate the driver
7610 * state with the results. If this routine fails, the failure
7611 * is not fatal as the driver will use generic values.
7613 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
7614 if (unlikely(!rc)) {
7615 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7616 "0377 Error %d parsing vpd. "
7617 "Using defaults.\n", rc);
7622 /* Save information as VPD data */
7623 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
7624 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
7627 * This is because first G7 ASIC doesn't support the standard
7628 * 0x5a NVME cmd descriptor type/subtype
7630 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7631 LPFC_SLI_INTF_IF_TYPE_6) &&
7632 (phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
7633 (phba->vpd.rev.smRev == 0) &&
7634 (phba->cfg_nvme_embed_cmd == 1))
7635 phba->cfg_nvme_embed_cmd = 0;
7637 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
7638 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
7640 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
7642 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
7644 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
7646 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
7647 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
7648 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
7649 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
7650 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
7651 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
7652 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7653 "(%d):0380 READ_REV Status x%x "
7654 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
7655 mboxq->vport ? mboxq->vport->vpi : 0,
7656 bf_get(lpfc_mqe_status, mqe),
7657 phba->vpd.rev.opFwName,
7658 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
7659 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
7661 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7662 LPFC_SLI_INTF_IF_TYPE_0) {
7663 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
7664 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7665 if (rc == MBX_SUCCESS) {
7666 phba->hba_flag |= HBA_RECOVERABLE_UE;
7667 /* Set 1Sec interval to detect UE */
7668 phba->eratt_poll_interval = 1;
7669 phba->sli4_hba.ue_to_sr = bf_get(
7670 lpfc_mbx_set_feature_UESR,
7671 &mboxq->u.mqe.un.set_feature);
7672 phba->sli4_hba.ue_to_rp = bf_get(
7673 lpfc_mbx_set_feature_UERP,
7674 &mboxq->u.mqe.un.set_feature);
7678 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
7679 /* Enable MDS Diagnostics only if the SLI Port supports it */
7680 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
7681 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7682 if (rc != MBX_SUCCESS)
7683 phba->mds_diags_support = 0;
7687 * Discover the port's supported feature set and match it against the
7690 lpfc_request_features(phba, mboxq);
7691 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7698 * The port must support FCP initiator mode as this is the
7699 * only mode running in the host.
7701 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
7702 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7703 "0378 No support for fcpi mode.\n");
7707 /* Performance Hints are ONLY for FCoE */
7708 if (phba->hba_flag & HBA_FCOE_MODE) {
7709 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
7710 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
7712 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
7716 * If the port cannot support the host's requested features
7717 * then turn off the global config parameters to disable the
7718 * feature in the driver. This is not a fatal error.
7720 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
7721 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
7722 phba->cfg_enable_bg = 0;
7723 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
7728 if (phba->max_vpi && phba->cfg_enable_npiv &&
7729 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7733 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7734 "0379 Feature Mismatch Data: x%08x %08x "
7735 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
7736 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
7737 phba->cfg_enable_npiv, phba->max_vpi);
7738 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
7739 phba->cfg_enable_bg = 0;
7740 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7741 phba->cfg_enable_npiv = 0;
7744 /* These SLI3 features are assumed in SLI4 */
7745 spin_lock_irq(&phba->hbalock);
7746 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
7747 spin_unlock_irq(&phba->hbalock);
7749 /* Always try to enable dual dump feature if we can */
7750 lpfc_set_features(phba, mboxq, LPFC_SET_DUAL_DUMP);
7751 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7752 dd = bf_get(lpfc_mbx_set_feature_dd, &mboxq->u.mqe.un.set_feature);
7753 if ((rc == MBX_SUCCESS) && (dd == LPFC_ENABLE_DUAL_DUMP))
7754 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7755 "6448 Dual Dump is enabled\n");
7757 lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_INIT,
7758 "6447 Dual Dump Mailbox x%x (x%x/x%x) failed, "
7760 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7761 lpfc_sli_config_mbox_subsys_get(
7763 lpfc_sli_config_mbox_opcode_get(
7767 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
7768 * calls depends on these resources to complete port setup.
7770 rc = lpfc_sli4_alloc_resource_identifiers(phba);
7772 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7773 "2920 Failed to alloc Resource IDs "
7778 lpfc_set_host_data(phba, mboxq);
7780 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7782 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7783 "2134 Failed to set host os driver version %x",
7787 /* Read the port's service parameters. */
7788 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
7790 phba->link_state = LPFC_HBA_ERROR;
7795 mboxq->vport = vport;
7796 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7797 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
7798 if (rc == MBX_SUCCESS) {
7799 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
7804 * This memory was allocated by the lpfc_read_sparam routine. Release
7805 * it to the mbuf pool.
7807 lpfc_mbuf_free(phba, mp->virt, mp->phys);
7809 mboxq->ctx_buf = NULL;
7811 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7812 "0382 READ_SPARAM command failed "
7813 "status %d, mbxStatus x%x\n",
7814 rc, bf_get(lpfc_mqe_status, mqe));
7815 phba->link_state = LPFC_HBA_ERROR;
7820 lpfc_update_vport_wwn(vport);
7822 /* Update the fc_host data structures with new wwn. */
7823 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
7824 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
7826 /* Create all the SLI4 queues */
7827 rc = lpfc_sli4_queue_create(phba);
7829 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7830 "3089 Failed to allocate queues\n");
7834 /* Set up all the queues to the device */
7835 rc = lpfc_sli4_queue_setup(phba);
7837 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7838 "0381 Error %d during queue setup.\n ", rc);
7839 goto out_stop_timers;
7841 /* Initialize the driver internal SLI layer lists. */
7842 lpfc_sli4_setup(phba);
7843 lpfc_sli4_queue_init(phba);
7845 /* update host els xri-sgl sizes and mappings */
7846 rc = lpfc_sli4_els_sgl_update(phba);
7848 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7849 "1400 Failed to update xri-sgl size and "
7850 "mapping: %d\n", rc);
7851 goto out_destroy_queue;
7854 /* register the els sgl pool to the port */
7855 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
7856 phba->sli4_hba.els_xri_cnt);
7857 if (unlikely(rc < 0)) {
7858 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7859 "0582 Error %d during els sgl post "
7862 goto out_destroy_queue;
7864 phba->sli4_hba.els_xri_cnt = rc;
7866 if (phba->nvmet_support) {
7867 /* update host nvmet xri-sgl sizes and mappings */
7868 rc = lpfc_sli4_nvmet_sgl_update(phba);
7870 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7871 "6308 Failed to update nvmet-sgl size "
7872 "and mapping: %d\n", rc);
7873 goto out_destroy_queue;
7876 /* register the nvmet sgl pool to the port */
7877 rc = lpfc_sli4_repost_sgl_list(
7879 &phba->sli4_hba.lpfc_nvmet_sgl_list,
7880 phba->sli4_hba.nvmet_xri_cnt);
7881 if (unlikely(rc < 0)) {
7882 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7883 "3117 Error %d during nvmet "
7886 goto out_destroy_queue;
7888 phba->sli4_hba.nvmet_xri_cnt = rc;
7890 /* We allocate an iocbq for every receive context SGL.
7891 * The additional allocation is for abort and ls handling.
7893 cnt = phba->sli4_hba.nvmet_xri_cnt +
7894 phba->sli4_hba.max_cfg_param.max_xri;
7896 /* update host common xri-sgl sizes and mappings */
7897 rc = lpfc_sli4_io_sgl_update(phba);
7899 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7900 "6082 Failed to update nvme-sgl size "
7901 "and mapping: %d\n", rc);
7902 goto out_destroy_queue;
7905 /* register the allocated common sgl pool to the port */
7906 rc = lpfc_sli4_repost_io_sgl_list(phba);
7908 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7909 "6116 Error %d during nvme sgl post "
7911 /* Some NVME buffers were moved to abort nvme list */
7912 /* A pci function reset will repost them */
7914 goto out_destroy_queue;
7916 /* Each lpfc_io_buf job structure has an iocbq element.
7917 * This cnt provides for abort, els, ct and ls requests.
7919 cnt = phba->sli4_hba.max_cfg_param.max_xri;
7922 if (!phba->sli.iocbq_lookup) {
7923 /* Initialize and populate the iocb list per host */
7924 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7925 "2821 initialize iocb list with %d entries\n",
7927 rc = lpfc_init_iocb_list(phba, cnt);
7929 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7930 "1413 Failed to init iocb list.\n");
7931 goto out_destroy_queue;
7935 if (phba->nvmet_support)
7936 lpfc_nvmet_create_targetport(phba);
7938 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
7939 /* Post initial buffers to all RQs created */
7940 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
7941 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
7942 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
7943 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
7944 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
7945 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
7946 rqbp->buffer_count = 0;
7948 lpfc_post_rq_buffer(
7949 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
7950 phba->sli4_hba.nvmet_mrq_data[i],
7951 phba->cfg_nvmet_mrq_post, i);
7955 /* Post the rpi header region to the device. */
7956 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7958 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7959 "0393 Error %d during rpi post operation\n",
7962 goto out_destroy_queue;
7964 lpfc_sli4_node_prep(phba);
7966 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
7967 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
7969 * The FC Port needs to register FCFI (index 0)
7971 lpfc_reg_fcfi(phba, mboxq);
7972 mboxq->vport = phba->pport;
7973 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7974 if (rc != MBX_SUCCESS)
7975 goto out_unset_queue;
7977 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7978 &mboxq->u.mqe.un.reg_fcfi);
7980 /* We are a NVME Target mode with MRQ > 1 */
7982 /* First register the FCFI */
7983 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7984 mboxq->vport = phba->pport;
7985 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7986 if (rc != MBX_SUCCESS)
7987 goto out_unset_queue;
7989 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7990 &mboxq->u.mqe.un.reg_fcfi_mrq);
7992 /* Next register the MRQs */
7993 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7994 mboxq->vport = phba->pport;
7995 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7996 if (rc != MBX_SUCCESS)
7997 goto out_unset_queue;
8000 /* Check if the port is configured to be disabled */
8001 lpfc_sli_read_link_ste(phba);
8004 /* Don't post more new bufs if repost already recovered
8007 if (phba->nvmet_support == 0) {
8008 if (phba->sli4_hba.io_xri_cnt == 0) {
8009 len = lpfc_new_io_buf(
8010 phba, phba->sli4_hba.io_xri_max);
8013 goto out_unset_queue;
8016 if (phba->cfg_xri_rebalancing)
8017 lpfc_create_multixri_pools(phba);
8020 phba->cfg_xri_rebalancing = 0;
8023 /* Allow asynchronous mailbox command to go through */
8024 spin_lock_irq(&phba->hbalock);
8025 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8026 spin_unlock_irq(&phba->hbalock);
8028 /* Post receive buffers to the device */
8029 lpfc_sli4_rb_setup(phba);
8031 /* Reset HBA FCF states after HBA reset */
8032 phba->fcf.fcf_flag = 0;
8033 phba->fcf.current_rec.flag = 0;
8035 /* Start the ELS watchdog timer */
8036 mod_timer(&vport->els_tmofunc,
8037 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
8039 /* Start heart beat timer */
8040 mod_timer(&phba->hb_tmofunc,
8041 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
8042 phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
8043 phba->last_completion_time = jiffies;
8045 /* start eq_delay heartbeat */
8046 if (phba->cfg_auto_imax)
8047 queue_delayed_work(phba->wq, &phba->eq_delay_work,
8048 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
8050 /* start per phba idle_stat_delay heartbeat */
8051 lpfc_init_idle_stat_hb(phba);
8053 /* Start error attention (ERATT) polling timer */
8054 mod_timer(&phba->eratt_poll,
8055 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
8057 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
8058 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
8059 rc = pci_enable_pcie_error_reporting(phba->pcidev);
8061 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8062 "2829 This device supports "
8063 "Advanced Error Reporting (AER)\n");
8064 spin_lock_irq(&phba->hbalock);
8065 phba->hba_flag |= HBA_AER_ENABLED;
8066 spin_unlock_irq(&phba->hbalock);
8068 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8069 "2830 This device does not support "
8070 "Advanced Error Reporting (AER)\n");
8071 phba->cfg_aer_support = 0;
8077 * The port is ready, set the host's link state to LINK_DOWN
8078 * in preparation for link interrupts.
8080 spin_lock_irq(&phba->hbalock);
8081 phba->link_state = LPFC_LINK_DOWN;
8083 /* Check if physical ports are trunked */
8084 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
8085 phba->trunk_link.link0.state = LPFC_LINK_DOWN;
8086 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
8087 phba->trunk_link.link1.state = LPFC_LINK_DOWN;
8088 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
8089 phba->trunk_link.link2.state = LPFC_LINK_DOWN;
8090 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
8091 phba->trunk_link.link3.state = LPFC_LINK_DOWN;
8092 spin_unlock_irq(&phba->hbalock);
8094 /* Arm the CQs and then EQs on device */
8095 lpfc_sli4_arm_cqeq_intr(phba);
8097 /* Indicate device interrupt mode */
8098 phba->sli4_hba.intr_enable = 1;
8100 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
8101 (phba->hba_flag & LINK_DISABLED)) {
8102 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8103 "3103 Adapter Link is disabled.\n");
8104 lpfc_down_link(phba, mboxq);
8105 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8106 if (rc != MBX_SUCCESS) {
8107 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8108 "3104 Adapter failed to issue "
8109 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
8110 goto out_io_buff_free;
8112 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
8113 /* don't perform init_link on SLI4 FC port loopback test */
8114 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
8115 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
8117 goto out_io_buff_free;
8120 mempool_free(mboxq, phba->mbox_mem_pool);
8123 /* Free allocated IO Buffers */
8126 /* Unset all the queues set up in this routine when error out */
8127 lpfc_sli4_queue_unset(phba);
8129 lpfc_free_iocb_list(phba);
8130 lpfc_sli4_queue_destroy(phba);
8132 lpfc_stop_hba_timers(phba);
8134 mempool_free(mboxq, phba->mbox_mem_pool);
8139 * lpfc_mbox_timeout - Timeout call back function for mbox timer
8140 * @t: Context to fetch pointer to hba structure from.
8142 * This is the callback function for mailbox timer. The mailbox
8143 * timer is armed when a new mailbox command is issued and the timer
8144 * is deleted when the mailbox complete. The function is called by
8145 * the kernel timer code when a mailbox does not complete within
8146 * expected time. This function wakes up the worker thread to
8147 * process the mailbox timeout and returns. All the processing is
8148 * done by the worker thread function lpfc_mbox_timeout_handler.
8151 lpfc_mbox_timeout(struct timer_list *t)
8153 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
8154 unsigned long iflag;
8155 uint32_t tmo_posted;
8157 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
8158 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
8160 phba->pport->work_port_events |= WORKER_MBOX_TMO;
8161 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
8164 lpfc_worker_wake_up(phba);
8169 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
8171 * @phba: Pointer to HBA context object.
8173 * This function checks if any mailbox completions are present on the mailbox
8177 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
8181 struct lpfc_queue *mcq;
8182 struct lpfc_mcqe *mcqe;
8183 bool pending_completions = false;
8186 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
8189 /* Check for completions on mailbox completion queue */
8191 mcq = phba->sli4_hba.mbx_cq;
8192 idx = mcq->hba_index;
8193 qe_valid = mcq->qe_valid;
8194 while (bf_get_le32(lpfc_cqe_valid,
8195 (struct lpfc_cqe *)lpfc_sli4_qe(mcq, idx)) == qe_valid) {
8196 mcqe = (struct lpfc_mcqe *)(lpfc_sli4_qe(mcq, idx));
8197 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
8198 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
8199 pending_completions = true;
8202 idx = (idx + 1) % mcq->entry_count;
8203 if (mcq->hba_index == idx)
8206 /* if the index wrapped around, toggle the valid bit */
8207 if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
8208 qe_valid = (qe_valid) ? 0 : 1;
8210 return pending_completions;
8215 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
8217 * @phba: Pointer to HBA context object.
8219 * For sli4, it is possible to miss an interrupt. As such mbox completions
8220 * maybe missed causing erroneous mailbox timeouts to occur. This function
8221 * checks to see if mbox completions are on the mailbox completion queue
8222 * and will process all the completions associated with the eq for the
8223 * mailbox completion queue.
8226 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
8228 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
8230 struct lpfc_queue *fpeq = NULL;
8231 struct lpfc_queue *eq;
8234 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
8237 /* Find the EQ associated with the mbox CQ */
8238 if (sli4_hba->hdwq) {
8239 for (eqidx = 0; eqidx < phba->cfg_irq_chann; eqidx++) {
8240 eq = phba->sli4_hba.hba_eq_hdl[eqidx].eq;
8241 if (eq && eq->queue_id == sli4_hba->mbx_cq->assoc_qid) {
8250 /* Turn off interrupts from this EQ */
8252 sli4_hba->sli4_eq_clr_intr(fpeq);
8254 /* Check to see if a mbox completion is pending */
8256 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
8259 * If a mbox completion is pending, process all the events on EQ
8260 * associated with the mbox completion queue (this could include
8261 * mailbox commands, async events, els commands, receive queue data
8266 /* process and rearm the EQ */
8267 lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM);
8269 /* Always clear and re-arm the EQ */
8270 sli4_hba->sli4_write_eq_db(phba, fpeq, 0, LPFC_QUEUE_REARM);
8272 return mbox_pending;
8277 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
8278 * @phba: Pointer to HBA context object.
8280 * This function is called from worker thread when a mailbox command times out.
8281 * The caller is not required to hold any locks. This function will reset the
8282 * HBA and recover all the pending commands.
8285 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
8287 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
8288 MAILBOX_t *mb = NULL;
8290 struct lpfc_sli *psli = &phba->sli;
8292 /* If the mailbox completed, process the completion */
8293 lpfc_sli4_process_missed_mbox_completions(phba);
8295 if (!(psli->sli_flag & LPFC_SLI_ACTIVE))
8300 /* Check the pmbox pointer first. There is a race condition
8301 * between the mbox timeout handler getting executed in the
8302 * worklist and the mailbox actually completing. When this
8303 * race condition occurs, the mbox_active will be NULL.
8305 spin_lock_irq(&phba->hbalock);
8306 if (pmbox == NULL) {
8307 lpfc_printf_log(phba, KERN_WARNING,
8309 "0353 Active Mailbox cleared - mailbox timeout "
8311 spin_unlock_irq(&phba->hbalock);
8315 /* Mbox cmd <mbxCommand> timeout */
8316 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8317 "0310 Mailbox command x%x timeout Data: x%x x%x x%px\n",
8319 phba->pport->port_state,
8321 phba->sli.mbox_active);
8322 spin_unlock_irq(&phba->hbalock);
8324 /* Setting state unknown so lpfc_sli_abort_iocb_ring
8325 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
8326 * it to fail all outstanding SCSI IO.
8328 spin_lock_irq(&phba->pport->work_port_lock);
8329 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8330 spin_unlock_irq(&phba->pport->work_port_lock);
8331 spin_lock_irq(&phba->hbalock);
8332 phba->link_state = LPFC_LINK_UNKNOWN;
8333 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8334 spin_unlock_irq(&phba->hbalock);
8336 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8337 "0345 Resetting board due to mailbox timeout\n");
8339 /* Reset the HBA device */
8340 lpfc_reset_hba(phba);
8344 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
8345 * @phba: Pointer to HBA context object.
8346 * @pmbox: Pointer to mailbox object.
8347 * @flag: Flag indicating how the mailbox need to be processed.
8349 * This function is called by discovery code and HBA management code
8350 * to submit a mailbox command to firmware with SLI-3 interface spec. This
8351 * function gets the hbalock to protect the data structures.
8352 * The mailbox command can be submitted in polling mode, in which case
8353 * this function will wait in a polling loop for the completion of the
8355 * If the mailbox is submitted in no_wait mode (not polling) the
8356 * function will submit the command and returns immediately without waiting
8357 * for the mailbox completion. The no_wait is supported only when HBA
8358 * is in SLI2/SLI3 mode - interrupts are enabled.
8359 * The SLI interface allows only one mailbox pending at a time. If the
8360 * mailbox is issued in polling mode and there is already a mailbox
8361 * pending, then the function will return an error. If the mailbox is issued
8362 * in NO_WAIT mode and there is a mailbox pending already, the function
8363 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
8364 * The sli layer owns the mailbox object until the completion of mailbox
8365 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
8366 * return codes the caller owns the mailbox command after the return of
8370 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
8374 struct lpfc_sli *psli = &phba->sli;
8375 uint32_t status, evtctr;
8376 uint32_t ha_copy, hc_copy;
8378 unsigned long timeout;
8379 unsigned long drvr_flag = 0;
8380 uint32_t word0, ldata;
8381 void __iomem *to_slim;
8382 int processing_queue = 0;
8384 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8386 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8387 /* processing mbox queue from intr_handler */
8388 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8389 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8392 processing_queue = 1;
8393 pmbox = lpfc_mbox_get(phba);
8395 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8400 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
8401 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
8403 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8404 lpfc_printf_log(phba, KERN_ERR,
8405 LOG_MBOX | LOG_VPORT,
8406 "1806 Mbox x%x failed. No vport\n",
8407 pmbox->u.mb.mbxCommand);
8409 goto out_not_finished;
8413 /* If the PCI channel is in offline state, do not post mbox. */
8414 if (unlikely(pci_channel_offline(phba->pcidev))) {
8415 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8416 goto out_not_finished;
8419 /* If HBA has a deferred error attention, fail the iocb. */
8420 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8421 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8422 goto out_not_finished;
8428 status = MBX_SUCCESS;
8430 if (phba->link_state == LPFC_HBA_ERROR) {
8431 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8433 /* Mbox command <mbxCommand> cannot issue */
8434 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8435 "(%d):0311 Mailbox command x%x cannot "
8436 "issue Data: x%x x%x\n",
8437 pmbox->vport ? pmbox->vport->vpi : 0,
8438 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8439 goto out_not_finished;
8442 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
8443 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
8444 !(hc_copy & HC_MBINT_ENA)) {
8445 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8446 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8447 "(%d):2528 Mailbox command x%x cannot "
8448 "issue Data: x%x x%x\n",
8449 pmbox->vport ? pmbox->vport->vpi : 0,
8450 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8451 goto out_not_finished;
8455 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8456 /* Polling for a mbox command when another one is already active
8457 * is not allowed in SLI. Also, the driver must have established
8458 * SLI2 mode to queue and process multiple mbox commands.
8461 if (flag & MBX_POLL) {
8462 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8464 /* Mbox command <mbxCommand> cannot issue */
8465 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8466 "(%d):2529 Mailbox command x%x "
8467 "cannot issue Data: x%x x%x\n",
8468 pmbox->vport ? pmbox->vport->vpi : 0,
8469 pmbox->u.mb.mbxCommand,
8470 psli->sli_flag, flag);
8471 goto out_not_finished;
8474 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
8475 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8476 /* Mbox command <mbxCommand> cannot issue */
8477 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8478 "(%d):2530 Mailbox command x%x "
8479 "cannot issue Data: x%x x%x\n",
8480 pmbox->vport ? pmbox->vport->vpi : 0,
8481 pmbox->u.mb.mbxCommand,
8482 psli->sli_flag, flag);
8483 goto out_not_finished;
8486 /* Another mailbox command is still being processed, queue this
8487 * command to be processed later.
8489 lpfc_mbox_put(phba, pmbox);
8491 /* Mbox cmd issue - BUSY */
8492 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8493 "(%d):0308 Mbox cmd issue - BUSY Data: "
8494 "x%x x%x x%x x%x\n",
8495 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
8497 phba->pport ? phba->pport->port_state : 0xff,
8498 psli->sli_flag, flag);
8500 psli->slistat.mbox_busy++;
8501 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8504 lpfc_debugfs_disc_trc(pmbox->vport,
8505 LPFC_DISC_TRC_MBOX_VPORT,
8506 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
8507 (uint32_t)mbx->mbxCommand,
8508 mbx->un.varWords[0], mbx->un.varWords[1]);
8511 lpfc_debugfs_disc_trc(phba->pport,
8513 "MBOX Bsy: cmd:x%x mb:x%x x%x",
8514 (uint32_t)mbx->mbxCommand,
8515 mbx->un.varWords[0], mbx->un.varWords[1]);
8521 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8523 /* If we are not polling, we MUST be in SLI2 mode */
8524 if (flag != MBX_POLL) {
8525 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
8526 (mbx->mbxCommand != MBX_KILL_BOARD)) {
8527 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8528 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8529 /* Mbox command <mbxCommand> cannot issue */
8530 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8531 "(%d):2531 Mailbox command x%x "
8532 "cannot issue Data: x%x x%x\n",
8533 pmbox->vport ? pmbox->vport->vpi : 0,
8534 pmbox->u.mb.mbxCommand,
8535 psli->sli_flag, flag);
8536 goto out_not_finished;
8538 /* timeout active mbox command */
8539 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8541 mod_timer(&psli->mbox_tmo, jiffies + timeout);
8544 /* Mailbox cmd <cmd> issue */
8545 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8546 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
8548 pmbox->vport ? pmbox->vport->vpi : 0,
8550 phba->pport ? phba->pport->port_state : 0xff,
8551 psli->sli_flag, flag);
8553 if (mbx->mbxCommand != MBX_HEARTBEAT) {
8555 lpfc_debugfs_disc_trc(pmbox->vport,
8556 LPFC_DISC_TRC_MBOX_VPORT,
8557 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8558 (uint32_t)mbx->mbxCommand,
8559 mbx->un.varWords[0], mbx->un.varWords[1]);
8562 lpfc_debugfs_disc_trc(phba->pport,
8564 "MBOX Send: cmd:x%x mb:x%x x%x",
8565 (uint32_t)mbx->mbxCommand,
8566 mbx->un.varWords[0], mbx->un.varWords[1]);
8570 psli->slistat.mbox_cmd++;
8571 evtctr = psli->slistat.mbox_event;
8573 /* next set own bit for the adapter and copy over command word */
8574 mbx->mbxOwner = OWN_CHIP;
8576 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8577 /* Populate mbox extension offset word. */
8578 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
8579 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8580 = (uint8_t *)phba->mbox_ext
8581 - (uint8_t *)phba->mbox;
8584 /* Copy the mailbox extension data */
8585 if (pmbox->in_ext_byte_len && pmbox->ctx_buf) {
8586 lpfc_sli_pcimem_bcopy(pmbox->ctx_buf,
8587 (uint8_t *)phba->mbox_ext,
8588 pmbox->in_ext_byte_len);
8590 /* Copy command data to host SLIM area */
8591 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
8593 /* Populate mbox extension offset word. */
8594 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
8595 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8596 = MAILBOX_HBA_EXT_OFFSET;
8598 /* Copy the mailbox extension data */
8599 if (pmbox->in_ext_byte_len && pmbox->ctx_buf)
8600 lpfc_memcpy_to_slim(phba->MBslimaddr +
8601 MAILBOX_HBA_EXT_OFFSET,
8602 pmbox->ctx_buf, pmbox->in_ext_byte_len);
8604 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8605 /* copy command data into host mbox for cmpl */
8606 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
8609 /* First copy mbox command data to HBA SLIM, skip past first
8611 to_slim = phba->MBslimaddr + sizeof (uint32_t);
8612 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
8613 MAILBOX_CMD_SIZE - sizeof (uint32_t));
8615 /* Next copy over first word, with mbxOwner set */
8616 ldata = *((uint32_t *)mbx);
8617 to_slim = phba->MBslimaddr;
8618 writel(ldata, to_slim);
8619 readl(to_slim); /* flush */
8621 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8622 /* switch over to host mailbox */
8623 psli->sli_flag |= LPFC_SLI_ACTIVE;
8630 /* Set up reference to mailbox command */
8631 psli->mbox_active = pmbox;
8632 /* Interrupt board to do it */
8633 writel(CA_MBATT, phba->CAregaddr);
8634 readl(phba->CAregaddr); /* flush */
8635 /* Don't wait for it to finish, just return */
8639 /* Set up null reference to mailbox command */
8640 psli->mbox_active = NULL;
8641 /* Interrupt board to do it */
8642 writel(CA_MBATT, phba->CAregaddr);
8643 readl(phba->CAregaddr); /* flush */
8645 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8646 /* First read mbox status word */
8647 word0 = *((uint32_t *)phba->mbox);
8648 word0 = le32_to_cpu(word0);
8650 /* First read mbox status word */
8651 if (lpfc_readl(phba->MBslimaddr, &word0)) {
8652 spin_unlock_irqrestore(&phba->hbalock,
8654 goto out_not_finished;
8658 /* Read the HBA Host Attention Register */
8659 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8660 spin_unlock_irqrestore(&phba->hbalock,
8662 goto out_not_finished;
8664 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8667 /* Wait for command to complete */
8668 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
8669 (!(ha_copy & HA_MBATT) &&
8670 (phba->link_state > LPFC_WARM_START))) {
8671 if (time_after(jiffies, timeout)) {
8672 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8673 spin_unlock_irqrestore(&phba->hbalock,
8675 goto out_not_finished;
8678 /* Check if we took a mbox interrupt while we were
8680 if (((word0 & OWN_CHIP) != OWN_CHIP)
8681 && (evtctr != psli->slistat.mbox_event))
8685 spin_unlock_irqrestore(&phba->hbalock,
8688 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8691 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8692 /* First copy command data */
8693 word0 = *((uint32_t *)phba->mbox);
8694 word0 = le32_to_cpu(word0);
8695 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
8698 /* Check real SLIM for any errors */
8699 slimword0 = readl(phba->MBslimaddr);
8700 slimmb = (MAILBOX_t *) & slimword0;
8701 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
8702 && slimmb->mbxStatus) {
8709 /* First copy command data */
8710 word0 = readl(phba->MBslimaddr);
8712 /* Read the HBA Host Attention Register */
8713 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8714 spin_unlock_irqrestore(&phba->hbalock,
8716 goto out_not_finished;
8720 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8721 /* copy results back to user */
8722 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
8724 /* Copy the mailbox extension data */
8725 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8726 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
8728 pmbox->out_ext_byte_len);
8731 /* First copy command data */
8732 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
8734 /* Copy the mailbox extension data */
8735 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8736 lpfc_memcpy_from_slim(
8739 MAILBOX_HBA_EXT_OFFSET,
8740 pmbox->out_ext_byte_len);
8744 writel(HA_MBATT, phba->HAregaddr);
8745 readl(phba->HAregaddr); /* flush */
8747 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8748 status = mbx->mbxStatus;
8751 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8755 if (processing_queue) {
8756 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
8757 lpfc_mbox_cmpl_put(phba, pmbox);
8759 return MBX_NOT_FINISHED;
8763 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
8764 * @phba: Pointer to HBA context object.
8766 * The function blocks the posting of SLI4 asynchronous mailbox commands from
8767 * the driver internal pending mailbox queue. It will then try to wait out the
8768 * possible outstanding mailbox command before return.
8771 * 0 - the outstanding mailbox command completed; otherwise, the wait for
8772 * the outstanding mailbox command timed out.
8775 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
8777 struct lpfc_sli *psli = &phba->sli;
8779 unsigned long timeout = 0;
8781 /* Mark the asynchronous mailbox command posting as blocked */
8782 spin_lock_irq(&phba->hbalock);
8783 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8784 /* Determine how long we might wait for the active mailbox
8785 * command to be gracefully completed by firmware.
8787 if (phba->sli.mbox_active)
8788 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
8789 phba->sli.mbox_active) *
8791 spin_unlock_irq(&phba->hbalock);
8793 /* Make sure the mailbox is really active */
8795 lpfc_sli4_process_missed_mbox_completions(phba);
8797 /* Wait for the outstnading mailbox command to complete */
8798 while (phba->sli.mbox_active) {
8799 /* Check active mailbox complete status every 2ms */
8801 if (time_after(jiffies, timeout)) {
8802 /* Timeout, marked the outstanding cmd not complete */
8808 /* Can not cleanly block async mailbox command, fails it */
8810 spin_lock_irq(&phba->hbalock);
8811 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8812 spin_unlock_irq(&phba->hbalock);
8818 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
8819 * @phba: Pointer to HBA context object.
8821 * The function unblocks and resume posting of SLI4 asynchronous mailbox
8822 * commands from the driver internal pending mailbox queue. It makes sure
8823 * that there is no outstanding mailbox command before resuming posting
8824 * asynchronous mailbox commands. If, for any reason, there is outstanding
8825 * mailbox command, it will try to wait it out before resuming asynchronous
8826 * mailbox command posting.
8829 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
8831 struct lpfc_sli *psli = &phba->sli;
8833 spin_lock_irq(&phba->hbalock);
8834 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8835 /* Asynchronous mailbox posting is not blocked, do nothing */
8836 spin_unlock_irq(&phba->hbalock);
8840 /* Outstanding synchronous mailbox command is guaranteed to be done,
8841 * successful or timeout, after timing-out the outstanding mailbox
8842 * command shall always be removed, so just unblock posting async
8843 * mailbox command and resume
8845 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8846 spin_unlock_irq(&phba->hbalock);
8848 /* wake up worker thread to post asynchronous mailbox command */
8849 lpfc_worker_wake_up(phba);
8853 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
8854 * @phba: Pointer to HBA context object.
8855 * @mboxq: Pointer to mailbox object.
8857 * The function waits for the bootstrap mailbox register ready bit from
8858 * port for twice the regular mailbox command timeout value.
8860 * 0 - no timeout on waiting for bootstrap mailbox register ready.
8861 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
8864 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8867 unsigned long timeout;
8868 struct lpfc_register bmbx_reg;
8870 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
8874 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
8875 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
8879 if (time_after(jiffies, timeout))
8880 return MBXERR_ERROR;
8881 } while (!db_ready);
8887 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
8888 * @phba: Pointer to HBA context object.
8889 * @mboxq: Pointer to mailbox object.
8891 * The function posts a mailbox to the port. The mailbox is expected
8892 * to be comletely filled in and ready for the port to operate on it.
8893 * This routine executes a synchronous completion operation on the
8894 * mailbox by polling for its completion.
8896 * The caller must not be holding any locks when calling this routine.
8899 * MBX_SUCCESS - mailbox posted successfully
8900 * Any of the MBX error values.
8903 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8905 int rc = MBX_SUCCESS;
8906 unsigned long iflag;
8907 uint32_t mcqe_status;
8909 struct lpfc_sli *psli = &phba->sli;
8910 struct lpfc_mqe *mb = &mboxq->u.mqe;
8911 struct lpfc_bmbx_create *mbox_rgn;
8912 struct dma_address *dma_address;
8915 * Only one mailbox can be active to the bootstrap mailbox region
8916 * at a time and there is no queueing provided.
8918 spin_lock_irqsave(&phba->hbalock, iflag);
8919 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8920 spin_unlock_irqrestore(&phba->hbalock, iflag);
8921 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8922 "(%d):2532 Mailbox command x%x (x%x/x%x) "
8923 "cannot issue Data: x%x x%x\n",
8924 mboxq->vport ? mboxq->vport->vpi : 0,
8925 mboxq->u.mb.mbxCommand,
8926 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8927 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8928 psli->sli_flag, MBX_POLL);
8929 return MBXERR_ERROR;
8931 /* The server grabs the token and owns it until release */
8932 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8933 phba->sli.mbox_active = mboxq;
8934 spin_unlock_irqrestore(&phba->hbalock, iflag);
8936 /* wait for bootstrap mbox register for readyness */
8937 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8941 * Initialize the bootstrap memory region to avoid stale data areas
8942 * in the mailbox post. Then copy the caller's mailbox contents to
8943 * the bmbx mailbox region.
8945 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
8946 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
8947 lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
8948 sizeof(struct lpfc_mqe));
8950 /* Post the high mailbox dma address to the port and wait for ready. */
8951 dma_address = &phba->sli4_hba.bmbx.dma_address;
8952 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
8954 /* wait for bootstrap mbox register for hi-address write done */
8955 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8959 /* Post the low mailbox dma address to the port. */
8960 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
8962 /* wait for bootstrap mbox register for low address write done */
8963 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8968 * Read the CQ to ensure the mailbox has completed.
8969 * If so, update the mailbox status so that the upper layers
8970 * can complete the request normally.
8972 lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
8973 sizeof(struct lpfc_mqe));
8974 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
8975 lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
8976 sizeof(struct lpfc_mcqe));
8977 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
8979 * When the CQE status indicates a failure and the mailbox status
8980 * indicates success then copy the CQE status into the mailbox status
8981 * (and prefix it with x4000).
8983 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
8984 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
8985 bf_set(lpfc_mqe_status, mb,
8986 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8989 lpfc_sli4_swap_str(phba, mboxq);
8991 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8992 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
8993 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8994 " x%x x%x CQ: x%x x%x x%x x%x\n",
8995 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8996 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8997 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8998 bf_get(lpfc_mqe_status, mb),
8999 mb->un.mb_words[0], mb->un.mb_words[1],
9000 mb->un.mb_words[2], mb->un.mb_words[3],
9001 mb->un.mb_words[4], mb->un.mb_words[5],
9002 mb->un.mb_words[6], mb->un.mb_words[7],
9003 mb->un.mb_words[8], mb->un.mb_words[9],
9004 mb->un.mb_words[10], mb->un.mb_words[11],
9005 mb->un.mb_words[12], mboxq->mcqe.word0,
9006 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
9007 mboxq->mcqe.trailer);
9009 /* We are holding the token, no needed for lock when release */
9010 spin_lock_irqsave(&phba->hbalock, iflag);
9011 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9012 phba->sli.mbox_active = NULL;
9013 spin_unlock_irqrestore(&phba->hbalock, iflag);
9018 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
9019 * @phba: Pointer to HBA context object.
9020 * @mboxq: Pointer to mailbox object.
9021 * @flag: Flag indicating how the mailbox need to be processed.
9023 * This function is called by discovery code and HBA management code to submit
9024 * a mailbox command to firmware with SLI-4 interface spec.
9026 * Return codes the caller owns the mailbox command after the return of the
9030 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
9033 struct lpfc_sli *psli = &phba->sli;
9034 unsigned long iflags;
9037 /* dump from issue mailbox command if setup */
9038 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
9040 rc = lpfc_mbox_dev_check(phba);
9042 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9043 "(%d):2544 Mailbox command x%x (x%x/x%x) "
9044 "cannot issue Data: x%x x%x\n",
9045 mboxq->vport ? mboxq->vport->vpi : 0,
9046 mboxq->u.mb.mbxCommand,
9047 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9048 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9049 psli->sli_flag, flag);
9050 goto out_not_finished;
9053 /* Detect polling mode and jump to a handler */
9054 if (!phba->sli4_hba.intr_enable) {
9055 if (flag == MBX_POLL)
9056 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
9059 if (rc != MBX_SUCCESS)
9060 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
9061 "(%d):2541 Mailbox command x%x "
9062 "(x%x/x%x) failure: "
9063 "mqe_sta: x%x mcqe_sta: x%x/x%x "
9065 mboxq->vport ? mboxq->vport->vpi : 0,
9066 mboxq->u.mb.mbxCommand,
9067 lpfc_sli_config_mbox_subsys_get(phba,
9069 lpfc_sli_config_mbox_opcode_get(phba,
9071 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
9072 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
9073 bf_get(lpfc_mcqe_ext_status,
9075 psli->sli_flag, flag);
9077 } else if (flag == MBX_POLL) {
9078 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
9079 "(%d):2542 Try to issue mailbox command "
9080 "x%x (x%x/x%x) synchronously ahead of async "
9081 "mailbox command queue: x%x x%x\n",
9082 mboxq->vport ? mboxq->vport->vpi : 0,
9083 mboxq->u.mb.mbxCommand,
9084 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9085 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9086 psli->sli_flag, flag);
9087 /* Try to block the asynchronous mailbox posting */
9088 rc = lpfc_sli4_async_mbox_block(phba);
9090 /* Successfully blocked, now issue sync mbox cmd */
9091 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
9092 if (rc != MBX_SUCCESS)
9093 lpfc_printf_log(phba, KERN_WARNING,
9095 "(%d):2597 Sync Mailbox command "
9096 "x%x (x%x/x%x) failure: "
9097 "mqe_sta: x%x mcqe_sta: x%x/x%x "
9099 mboxq->vport ? mboxq->vport->vpi : 0,
9100 mboxq->u.mb.mbxCommand,
9101 lpfc_sli_config_mbox_subsys_get(phba,
9103 lpfc_sli_config_mbox_opcode_get(phba,
9105 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
9106 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
9107 bf_get(lpfc_mcqe_ext_status,
9109 psli->sli_flag, flag);
9110 /* Unblock the async mailbox posting afterward */
9111 lpfc_sli4_async_mbox_unblock(phba);
9116 /* Now, interrupt mode asynchronous mailbox command */
9117 rc = lpfc_mbox_cmd_check(phba, mboxq);
9119 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9120 "(%d):2543 Mailbox command x%x (x%x/x%x) "
9121 "cannot issue Data: x%x x%x\n",
9122 mboxq->vport ? mboxq->vport->vpi : 0,
9123 mboxq->u.mb.mbxCommand,
9124 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9125 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9126 psli->sli_flag, flag);
9127 goto out_not_finished;
9130 /* Put the mailbox command to the driver internal FIFO */
9131 psli->slistat.mbox_busy++;
9132 spin_lock_irqsave(&phba->hbalock, iflags);
9133 lpfc_mbox_put(phba, mboxq);
9134 spin_unlock_irqrestore(&phba->hbalock, iflags);
9135 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
9136 "(%d):0354 Mbox cmd issue - Enqueue Data: "
9137 "x%x (x%x/x%x) x%x x%x x%x\n",
9138 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
9139 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
9140 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9141 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9142 phba->pport->port_state,
9143 psli->sli_flag, MBX_NOWAIT);
9144 /* Wake up worker thread to transport mailbox command from head */
9145 lpfc_worker_wake_up(phba);
9150 return MBX_NOT_FINISHED;
9154 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
9155 * @phba: Pointer to HBA context object.
9157 * This function is called by worker thread to send a mailbox command to
9158 * SLI4 HBA firmware.
9162 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
9164 struct lpfc_sli *psli = &phba->sli;
9165 LPFC_MBOXQ_t *mboxq;
9166 int rc = MBX_SUCCESS;
9167 unsigned long iflags;
9168 struct lpfc_mqe *mqe;
9171 /* Check interrupt mode before post async mailbox command */
9172 if (unlikely(!phba->sli4_hba.intr_enable))
9173 return MBX_NOT_FINISHED;
9175 /* Check for mailbox command service token */
9176 spin_lock_irqsave(&phba->hbalock, iflags);
9177 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
9178 spin_unlock_irqrestore(&phba->hbalock, iflags);
9179 return MBX_NOT_FINISHED;
9181 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9182 spin_unlock_irqrestore(&phba->hbalock, iflags);
9183 return MBX_NOT_FINISHED;
9185 if (unlikely(phba->sli.mbox_active)) {
9186 spin_unlock_irqrestore(&phba->hbalock, iflags);
9187 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9188 "0384 There is pending active mailbox cmd\n");
9189 return MBX_NOT_FINISHED;
9191 /* Take the mailbox command service token */
9192 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
9194 /* Get the next mailbox command from head of queue */
9195 mboxq = lpfc_mbox_get(phba);
9197 /* If no more mailbox command waiting for post, we're done */
9199 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9200 spin_unlock_irqrestore(&phba->hbalock, iflags);
9203 phba->sli.mbox_active = mboxq;
9204 spin_unlock_irqrestore(&phba->hbalock, iflags);
9206 /* Check device readiness for posting mailbox command */
9207 rc = lpfc_mbox_dev_check(phba);
9209 /* Driver clean routine will clean up pending mailbox */
9210 goto out_not_finished;
9212 /* Prepare the mbox command to be posted */
9213 mqe = &mboxq->u.mqe;
9214 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
9216 /* Start timer for the mbox_tmo and log some mailbox post messages */
9217 mod_timer(&psli->mbox_tmo, (jiffies +
9218 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
9220 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
9221 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
9223 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
9224 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9225 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9226 phba->pport->port_state, psli->sli_flag);
9228 if (mbx_cmnd != MBX_HEARTBEAT) {
9230 lpfc_debugfs_disc_trc(mboxq->vport,
9231 LPFC_DISC_TRC_MBOX_VPORT,
9232 "MBOX Send vport: cmd:x%x mb:x%x x%x",
9233 mbx_cmnd, mqe->un.mb_words[0],
9234 mqe->un.mb_words[1]);
9236 lpfc_debugfs_disc_trc(phba->pport,
9238 "MBOX Send: cmd:x%x mb:x%x x%x",
9239 mbx_cmnd, mqe->un.mb_words[0],
9240 mqe->un.mb_words[1]);
9243 psli->slistat.mbox_cmd++;
9245 /* Post the mailbox command to the port */
9246 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
9247 if (rc != MBX_SUCCESS) {
9248 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9249 "(%d):2533 Mailbox command x%x (x%x/x%x) "
9250 "cannot issue Data: x%x x%x\n",
9251 mboxq->vport ? mboxq->vport->vpi : 0,
9252 mboxq->u.mb.mbxCommand,
9253 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9254 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9255 psli->sli_flag, MBX_NOWAIT);
9256 goto out_not_finished;
9262 spin_lock_irqsave(&phba->hbalock, iflags);
9263 if (phba->sli.mbox_active) {
9264 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9265 __lpfc_mbox_cmpl_put(phba, mboxq);
9266 /* Release the token */
9267 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9268 phba->sli.mbox_active = NULL;
9270 spin_unlock_irqrestore(&phba->hbalock, iflags);
9272 return MBX_NOT_FINISHED;
9276 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
9277 * @phba: Pointer to HBA context object.
9278 * @pmbox: Pointer to mailbox object.
9279 * @flag: Flag indicating how the mailbox need to be processed.
9281 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
9282 * the API jump table function pointer from the lpfc_hba struct.
9284 * Return codes the caller owns the mailbox command after the return of the
9288 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
9290 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
9294 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
9295 * @phba: The hba struct for which this call is being executed.
9296 * @dev_grp: The HBA PCI-Device group number.
9298 * This routine sets up the mbox interface API function jump table in @phba
9300 * Returns: 0 - success, -ENODEV - failure.
9303 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9307 case LPFC_PCI_DEV_LP:
9308 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
9309 phba->lpfc_sli_handle_slow_ring_event =
9310 lpfc_sli_handle_slow_ring_event_s3;
9311 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
9312 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
9313 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
9315 case LPFC_PCI_DEV_OC:
9316 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
9317 phba->lpfc_sli_handle_slow_ring_event =
9318 lpfc_sli_handle_slow_ring_event_s4;
9319 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
9320 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
9321 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
9324 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9325 "1420 Invalid HBA PCI-device group: 0x%x\n",
9333 * __lpfc_sli_ringtx_put - Add an iocb to the txq
9334 * @phba: Pointer to HBA context object.
9335 * @pring: Pointer to driver SLI ring object.
9336 * @piocb: Pointer to address of newly added command iocb.
9338 * This function is called with hbalock held for SLI3 ports or
9339 * the ring lock held for SLI4 ports to add a command
9340 * iocb to the txq when SLI layer cannot submit the command iocb
9344 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9345 struct lpfc_iocbq *piocb)
9347 if (phba->sli_rev == LPFC_SLI_REV4)
9348 lockdep_assert_held(&pring->ring_lock);
9350 lockdep_assert_held(&phba->hbalock);
9351 /* Insert the caller's iocb in the txq tail for later processing. */
9352 list_add_tail(&piocb->list, &pring->txq);
9356 * lpfc_sli_next_iocb - Get the next iocb in the txq
9357 * @phba: Pointer to HBA context object.
9358 * @pring: Pointer to driver SLI ring object.
9359 * @piocb: Pointer to address of newly added command iocb.
9361 * This function is called with hbalock held before a new
9362 * iocb is submitted to the firmware. This function checks
9363 * txq to flush the iocbs in txq to Firmware before
9364 * submitting new iocbs to the Firmware.
9365 * If there are iocbs in the txq which need to be submitted
9366 * to firmware, lpfc_sli_next_iocb returns the first element
9367 * of the txq after dequeuing it from txq.
9368 * If there is no iocb in the txq then the function will return
9369 * *piocb and *piocb is set to NULL. Caller needs to check
9370 * *piocb to find if there are more commands in the txq.
9372 static struct lpfc_iocbq *
9373 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9374 struct lpfc_iocbq **piocb)
9376 struct lpfc_iocbq * nextiocb;
9378 lockdep_assert_held(&phba->hbalock);
9380 nextiocb = lpfc_sli_ringtx_get(phba, pring);
9390 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
9391 * @phba: Pointer to HBA context object.
9392 * @ring_number: SLI ring number to issue iocb on.
9393 * @piocb: Pointer to command iocb.
9394 * @flag: Flag indicating if this command can be put into txq.
9396 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
9397 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
9398 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
9399 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
9400 * this function allows only iocbs for posting buffers. This function finds
9401 * next available slot in the command ring and posts the command to the
9402 * available slot and writes the port attention register to request HBA start
9403 * processing new iocb. If there is no slot available in the ring and
9404 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
9405 * the function returns IOCB_BUSY.
9407 * This function is called with hbalock held. The function will return success
9408 * after it successfully submit the iocb to firmware or after adding to the
9412 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
9413 struct lpfc_iocbq *piocb, uint32_t flag)
9415 struct lpfc_iocbq *nextiocb;
9417 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
9419 lockdep_assert_held(&phba->hbalock);
9421 if (piocb->iocb_cmpl && (!piocb->vport) &&
9422 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
9423 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
9424 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9425 "1807 IOCB x%x failed. No vport\n",
9426 piocb->iocb.ulpCommand);
9432 /* If the PCI channel is in offline state, do not post iocbs. */
9433 if (unlikely(pci_channel_offline(phba->pcidev)))
9436 /* If HBA has a deferred error attention, fail the iocb. */
9437 if (unlikely(phba->hba_flag & DEFER_ERATT))
9441 * We should never get an IOCB if we are in a < LINK_DOWN state
9443 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
9447 * Check to see if we are blocking IOCB processing because of a
9448 * outstanding event.
9450 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
9453 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
9455 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
9456 * can be issued if the link is not up.
9458 switch (piocb->iocb.ulpCommand) {
9459 case CMD_GEN_REQUEST64_CR:
9460 case CMD_GEN_REQUEST64_CX:
9461 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
9462 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
9463 FC_RCTL_DD_UNSOL_CMD) ||
9464 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
9465 MENLO_TRANSPORT_TYPE))
9469 case CMD_QUE_RING_BUF_CN:
9470 case CMD_QUE_RING_BUF64_CN:
9472 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
9473 * completion, iocb_cmpl MUST be 0.
9475 if (piocb->iocb_cmpl)
9476 piocb->iocb_cmpl = NULL;
9478 case CMD_CREATE_XRI_CR:
9479 case CMD_CLOSE_XRI_CN:
9480 case CMD_CLOSE_XRI_CX:
9487 * For FCP commands, we must be in a state where we can process link
9490 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
9491 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
9495 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
9496 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
9497 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
9500 lpfc_sli_update_ring(phba, pring);
9502 lpfc_sli_update_full_ring(phba, pring);
9505 return IOCB_SUCCESS;
9510 pring->stats.iocb_cmd_delay++;
9514 if (!(flag & SLI_IOCB_RET_IOCB)) {
9515 __lpfc_sli_ringtx_put(phba, pring, piocb);
9516 return IOCB_SUCCESS;
9523 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
9524 * @phba: Pointer to HBA context object.
9525 * @piocbq: Pointer to command iocb.
9526 * @sglq: Pointer to the scatter gather queue object.
9528 * This routine converts the bpl or bde that is in the IOCB
9529 * to a sgl list for the sli4 hardware. The physical address
9530 * of the bpl/bde is converted back to a virtual address.
9531 * If the IOCB contains a BPL then the list of BDE's is
9532 * converted to sli4_sge's. If the IOCB contains a single
9533 * BDE then it is converted to a single sli_sge.
9534 * The IOCB is still in cpu endianess so the contents of
9535 * the bpl can be used without byte swapping.
9537 * Returns valid XRI = Success, NO_XRI = Failure.
9540 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
9541 struct lpfc_sglq *sglq)
9543 uint16_t xritag = NO_XRI;
9544 struct ulp_bde64 *bpl = NULL;
9545 struct ulp_bde64 bde;
9546 struct sli4_sge *sgl = NULL;
9547 struct lpfc_dmabuf *dmabuf;
9551 uint32_t offset = 0; /* accumulated offset in the sg request list */
9552 int inbound = 0; /* number of sg reply entries inbound from firmware */
9554 if (!piocbq || !sglq)
9557 sgl = (struct sli4_sge *)sglq->sgl;
9558 icmd = &piocbq->iocb;
9559 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
9560 return sglq->sli4_xritag;
9561 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9562 numBdes = icmd->un.genreq64.bdl.bdeSize /
9563 sizeof(struct ulp_bde64);
9564 /* The addrHigh and addrLow fields within the IOCB
9565 * have not been byteswapped yet so there is no
9566 * need to swap them back.
9568 if (piocbq->context3)
9569 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
9573 bpl = (struct ulp_bde64 *)dmabuf->virt;
9577 for (i = 0; i < numBdes; i++) {
9578 /* Should already be byte swapped. */
9579 sgl->addr_hi = bpl->addrHigh;
9580 sgl->addr_lo = bpl->addrLow;
9582 sgl->word2 = le32_to_cpu(sgl->word2);
9583 if ((i+1) == numBdes)
9584 bf_set(lpfc_sli4_sge_last, sgl, 1);
9586 bf_set(lpfc_sli4_sge_last, sgl, 0);
9587 /* swap the size field back to the cpu so we
9588 * can assign it to the sgl.
9590 bde.tus.w = le32_to_cpu(bpl->tus.w);
9591 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
9592 /* The offsets in the sgl need to be accumulated
9593 * separately for the request and reply lists.
9594 * The request is always first, the reply follows.
9596 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
9597 /* add up the reply sg entries */
9598 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
9600 /* first inbound? reset the offset */
9603 bf_set(lpfc_sli4_sge_offset, sgl, offset);
9604 bf_set(lpfc_sli4_sge_type, sgl,
9605 LPFC_SGE_TYPE_DATA);
9606 offset += bde.tus.f.bdeSize;
9608 sgl->word2 = cpu_to_le32(sgl->word2);
9612 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
9613 /* The addrHigh and addrLow fields of the BDE have not
9614 * been byteswapped yet so they need to be swapped
9615 * before putting them in the sgl.
9618 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
9620 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
9621 sgl->word2 = le32_to_cpu(sgl->word2);
9622 bf_set(lpfc_sli4_sge_last, sgl, 1);
9623 sgl->word2 = cpu_to_le32(sgl->word2);
9625 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
9627 return sglq->sli4_xritag;
9631 * lpfc_sli4_iocb2wqe - Convert the IOCB to a work queue entry.
9632 * @phba: Pointer to HBA context object.
9633 * @iocbq: Pointer to command iocb.
9634 * @wqe: Pointer to the work queue entry.
9636 * This routine converts the iocb command to its Work Queue Entry
9637 * equivalent. The wqe pointer should not have any fields set when
9638 * this routine is called because it will memcpy over them.
9639 * This routine does not set the CQ_ID or the WQEC bits in the
9642 * Returns: 0 = Success, IOCB_ERROR = Failure.
9645 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
9646 union lpfc_wqe128 *wqe)
9648 uint32_t xmit_len = 0, total_len = 0;
9652 uint8_t command_type = ELS_COMMAND_NON_FIP;
9655 uint16_t abrt_iotag;
9656 struct lpfc_iocbq *abrtiocbq;
9657 struct ulp_bde64 *bpl = NULL;
9658 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
9660 struct ulp_bde64 bde;
9661 struct lpfc_nodelist *ndlp;
9665 fip = phba->hba_flag & HBA_FIP_SUPPORT;
9666 /* The fcp commands will set command type */
9667 if (iocbq->iocb_flag & LPFC_IO_FCP)
9668 command_type = FCP_COMMAND;
9669 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
9670 command_type = ELS_COMMAND_FIP;
9672 command_type = ELS_COMMAND_NON_FIP;
9674 if (phba->fcp_embed_io)
9675 memset(wqe, 0, sizeof(union lpfc_wqe128));
9676 /* Some of the fields are in the right position already */
9677 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
9678 /* The ct field has moved so reset */
9679 wqe->generic.wqe_com.word7 = 0;
9680 wqe->generic.wqe_com.word10 = 0;
9682 abort_tag = (uint32_t) iocbq->iotag;
9683 xritag = iocbq->sli4_xritag;
9684 /* words0-2 bpl convert bde */
9685 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9686 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9687 sizeof(struct ulp_bde64);
9688 bpl = (struct ulp_bde64 *)
9689 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
9693 /* Should already be byte swapped. */
9694 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
9695 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
9696 /* swap the size field back to the cpu so we
9697 * can assign it to the sgl.
9699 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
9700 xmit_len = wqe->generic.bde.tus.f.bdeSize;
9702 for (i = 0; i < numBdes; i++) {
9703 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9704 total_len += bde.tus.f.bdeSize;
9707 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
9709 iocbq->iocb.ulpIoTag = iocbq->iotag;
9710 cmnd = iocbq->iocb.ulpCommand;
9712 switch (iocbq->iocb.ulpCommand) {
9713 case CMD_ELS_REQUEST64_CR:
9714 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
9715 ndlp = iocbq->context_un.ndlp;
9717 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9718 if (!iocbq->iocb.ulpLe) {
9719 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9720 "2007 Only Limited Edition cmd Format"
9721 " supported 0x%x\n",
9722 iocbq->iocb.ulpCommand);
9726 wqe->els_req.payload_len = xmit_len;
9727 /* Els_reguest64 has a TMO */
9728 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
9729 iocbq->iocb.ulpTimeout);
9730 /* Need a VF for word 4 set the vf bit*/
9731 bf_set(els_req64_vf, &wqe->els_req, 0);
9732 /* And a VFID for word 12 */
9733 bf_set(els_req64_vfid, &wqe->els_req, 0);
9734 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9735 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9736 iocbq->iocb.ulpContext);
9737 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
9738 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
9739 /* CCP CCPE PV PRI in word10 were set in the memcpy */
9740 if (command_type == ELS_COMMAND_FIP)
9741 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
9742 >> LPFC_FIP_ELS_ID_SHIFT);
9743 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9744 iocbq->context2)->virt);
9745 if_type = bf_get(lpfc_sli_intf_if_type,
9746 &phba->sli4_hba.sli_intf);
9747 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9748 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
9749 *pcmd == ELS_CMD_SCR ||
9750 *pcmd == ELS_CMD_RDF ||
9751 *pcmd == ELS_CMD_RSCN_XMT ||
9752 *pcmd == ELS_CMD_FDISC ||
9753 *pcmd == ELS_CMD_LOGO ||
9754 *pcmd == ELS_CMD_PLOGI)) {
9755 bf_set(els_req64_sp, &wqe->els_req, 1);
9756 bf_set(els_req64_sid, &wqe->els_req,
9757 iocbq->vport->fc_myDID);
9758 if ((*pcmd == ELS_CMD_FLOGI) &&
9759 !(phba->fc_topology ==
9760 LPFC_TOPOLOGY_LOOP))
9761 bf_set(els_req64_sid, &wqe->els_req, 0);
9762 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
9763 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9764 phba->vpi_ids[iocbq->vport->vpi]);
9765 } else if (pcmd && iocbq->context1) {
9766 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
9767 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9768 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9771 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
9772 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9773 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
9774 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
9775 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
9776 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
9777 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9778 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
9779 wqe->els_req.max_response_payload_len = total_len - xmit_len;
9781 case CMD_XMIT_SEQUENCE64_CX:
9782 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
9783 iocbq->iocb.un.ulpWord[3]);
9784 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
9785 iocbq->iocb.unsli3.rcvsli3.ox_id);
9786 /* The entire sequence is transmitted for this IOCB */
9787 xmit_len = total_len;
9788 cmnd = CMD_XMIT_SEQUENCE64_CR;
9789 if (phba->link_flag & LS_LOOPBACK_MODE)
9790 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
9792 case CMD_XMIT_SEQUENCE64_CR:
9793 /* word3 iocb=io_tag32 wqe=reserved */
9794 wqe->xmit_sequence.rsvd3 = 0;
9795 /* word4 relative_offset memcpy */
9796 /* word5 r_ctl/df_ctl memcpy */
9797 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
9798 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
9799 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
9800 LPFC_WQE_IOD_WRITE);
9801 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
9802 LPFC_WQE_LENLOC_WORD12);
9803 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
9804 wqe->xmit_sequence.xmit_len = xmit_len;
9805 command_type = OTHER_COMMAND;
9807 case CMD_XMIT_BCAST64_CN:
9808 /* word3 iocb=iotag32 wqe=seq_payload_len */
9809 wqe->xmit_bcast64.seq_payload_len = xmit_len;
9810 /* word4 iocb=rsvd wqe=rsvd */
9811 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
9812 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
9813 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
9814 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9815 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
9816 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
9817 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
9818 LPFC_WQE_LENLOC_WORD3);
9819 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
9821 case CMD_FCP_IWRITE64_CR:
9822 command_type = FCP_COMMAND_DATA_OUT;
9823 /* word3 iocb=iotag wqe=payload_offset_len */
9824 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9825 bf_set(payload_offset_len, &wqe->fcp_iwrite,
9826 xmit_len + sizeof(struct fcp_rsp));
9827 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
9829 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9830 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9831 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
9832 iocbq->iocb.ulpFCP2Rcvy);
9833 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
9834 /* Always open the exchange */
9835 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
9836 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
9837 LPFC_WQE_LENLOC_WORD4);
9838 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
9839 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
9840 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9841 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
9842 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
9843 if (iocbq->priority) {
9844 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9845 (iocbq->priority << 1));
9847 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9848 (phba->cfg_XLanePriority << 1));
9851 /* Note, word 10 is already initialized to 0 */
9853 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9854 if (phba->cfg_enable_pbde)
9855 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 1);
9857 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
9859 if (phba->fcp_embed_io) {
9860 struct lpfc_io_buf *lpfc_cmd;
9861 struct sli4_sge *sgl;
9862 struct fcp_cmnd *fcp_cmnd;
9865 /* 128 byte wqe support here */
9867 lpfc_cmd = iocbq->context1;
9868 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9869 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9871 /* Word 0-2 - FCP_CMND */
9872 wqe->generic.bde.tus.f.bdeFlags =
9873 BUFF_TYPE_BDE_IMMED;
9874 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9875 wqe->generic.bde.addrHigh = 0;
9876 wqe->generic.bde.addrLow = 88; /* Word 22 */
9878 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
9879 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
9881 /* Word 22-29 FCP CMND Payload */
9882 ptr = &wqe->words[22];
9883 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9886 case CMD_FCP_IREAD64_CR:
9887 /* word3 iocb=iotag wqe=payload_offset_len */
9888 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9889 bf_set(payload_offset_len, &wqe->fcp_iread,
9890 xmit_len + sizeof(struct fcp_rsp));
9891 bf_set(cmd_buff_len, &wqe->fcp_iread,
9893 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9894 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9895 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
9896 iocbq->iocb.ulpFCP2Rcvy);
9897 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
9898 /* Always open the exchange */
9899 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
9900 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
9901 LPFC_WQE_LENLOC_WORD4);
9902 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
9903 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
9904 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9905 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
9906 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
9907 if (iocbq->priority) {
9908 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9909 (iocbq->priority << 1));
9911 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9912 (phba->cfg_XLanePriority << 1));
9915 /* Note, word 10 is already initialized to 0 */
9917 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9918 if (phba->cfg_enable_pbde)
9919 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 1);
9921 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
9923 if (phba->fcp_embed_io) {
9924 struct lpfc_io_buf *lpfc_cmd;
9925 struct sli4_sge *sgl;
9926 struct fcp_cmnd *fcp_cmnd;
9929 /* 128 byte wqe support here */
9931 lpfc_cmd = iocbq->context1;
9932 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9933 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9935 /* Word 0-2 - FCP_CMND */
9936 wqe->generic.bde.tus.f.bdeFlags =
9937 BUFF_TYPE_BDE_IMMED;
9938 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9939 wqe->generic.bde.addrHigh = 0;
9940 wqe->generic.bde.addrLow = 88; /* Word 22 */
9942 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
9943 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
9945 /* Word 22-29 FCP CMND Payload */
9946 ptr = &wqe->words[22];
9947 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9950 case CMD_FCP_ICMND64_CR:
9951 /* word3 iocb=iotag wqe=payload_offset_len */
9952 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9953 bf_set(payload_offset_len, &wqe->fcp_icmd,
9954 xmit_len + sizeof(struct fcp_rsp));
9955 bf_set(cmd_buff_len, &wqe->fcp_icmd,
9957 /* word3 iocb=IO_TAG wqe=reserved */
9958 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
9959 /* Always open the exchange */
9960 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
9961 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
9962 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
9963 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
9964 LPFC_WQE_LENLOC_NONE);
9965 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
9966 iocbq->iocb.ulpFCP2Rcvy);
9967 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9968 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
9969 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
9970 if (iocbq->priority) {
9971 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9972 (iocbq->priority << 1));
9974 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9975 (phba->cfg_XLanePriority << 1));
9978 /* Note, word 10 is already initialized to 0 */
9980 if (phba->fcp_embed_io) {
9981 struct lpfc_io_buf *lpfc_cmd;
9982 struct sli4_sge *sgl;
9983 struct fcp_cmnd *fcp_cmnd;
9986 /* 128 byte wqe support here */
9988 lpfc_cmd = iocbq->context1;
9989 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9990 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9992 /* Word 0-2 - FCP_CMND */
9993 wqe->generic.bde.tus.f.bdeFlags =
9994 BUFF_TYPE_BDE_IMMED;
9995 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9996 wqe->generic.bde.addrHigh = 0;
9997 wqe->generic.bde.addrLow = 88; /* Word 22 */
9999 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
10000 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
10002 /* Word 22-29 FCP CMND Payload */
10003 ptr = &wqe->words[22];
10004 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
10007 case CMD_GEN_REQUEST64_CR:
10008 /* For this command calculate the xmit length of the
10012 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
10013 sizeof(struct ulp_bde64);
10014 for (i = 0; i < numBdes; i++) {
10015 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
10016 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
10018 xmit_len += bde.tus.f.bdeSize;
10020 /* word3 iocb=IO_TAG wqe=request_payload_len */
10021 wqe->gen_req.request_payload_len = xmit_len;
10022 /* word4 iocb=parameter wqe=relative_offset memcpy */
10023 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
10024 /* word6 context tag copied in memcpy */
10025 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
10026 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
10027 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10028 "2015 Invalid CT %x command 0x%x\n",
10029 ct, iocbq->iocb.ulpCommand);
10032 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
10033 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
10034 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
10035 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
10036 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
10037 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
10038 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
10039 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
10040 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
10041 command_type = OTHER_COMMAND;
10043 case CMD_XMIT_ELS_RSP64_CX:
10044 ndlp = (struct lpfc_nodelist *)iocbq->context1;
10045 /* words0-2 BDE memcpy */
10046 /* word3 iocb=iotag32 wqe=response_payload_len */
10047 wqe->xmit_els_rsp.response_payload_len = xmit_len;
10049 wqe->xmit_els_rsp.word4 = 0;
10050 /* word5 iocb=rsvd wge=did */
10051 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
10052 iocbq->iocb.un.xseq64.xmit_els_remoteID);
10054 if_type = bf_get(lpfc_sli_intf_if_type,
10055 &phba->sli4_hba.sli_intf);
10056 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10057 if (iocbq->vport->fc_flag & FC_PT2PT) {
10058 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
10059 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
10060 iocbq->vport->fc_myDID);
10061 if (iocbq->vport->fc_myDID == Fabric_DID) {
10062 bf_set(wqe_els_did,
10063 &wqe->xmit_els_rsp.wqe_dest, 0);
10067 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
10068 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
10069 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
10070 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
10071 iocbq->iocb.unsli3.rcvsli3.ox_id);
10072 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
10073 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
10074 phba->vpi_ids[iocbq->vport->vpi]);
10075 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
10076 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
10077 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
10078 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
10079 LPFC_WQE_LENLOC_WORD3);
10080 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
10081 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
10082 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
10083 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
10084 iocbq->context2)->virt);
10085 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
10086 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
10087 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
10088 iocbq->vport->fc_myDID);
10089 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
10090 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
10091 phba->vpi_ids[phba->pport->vpi]);
10093 command_type = OTHER_COMMAND;
10095 case CMD_CLOSE_XRI_CN:
10096 case CMD_ABORT_XRI_CN:
10097 case CMD_ABORT_XRI_CX:
10098 /* words 0-2 memcpy should be 0 rserved */
10099 /* port will send abts */
10100 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
10101 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
10102 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
10103 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
10107 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
10109 * The link is down, or the command was ELS_FIP
10110 * so the fw does not need to send abts
10113 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
10115 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
10116 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
10117 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
10118 wqe->abort_cmd.rsrvd5 = 0;
10119 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
10120 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
10121 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
10123 * The abort handler will send us CMD_ABORT_XRI_CN or
10124 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
10126 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
10127 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
10128 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
10129 LPFC_WQE_LENLOC_NONE);
10130 cmnd = CMD_ABORT_XRI_CX;
10131 command_type = OTHER_COMMAND;
10134 case CMD_XMIT_BLS_RSP64_CX:
10135 ndlp = (struct lpfc_nodelist *)iocbq->context1;
10136 /* As BLS ABTS RSP WQE is very different from other WQEs,
10137 * we re-construct this WQE here based on information in
10138 * iocbq from scratch.
10140 memset(wqe, 0, sizeof(*wqe));
10141 /* OX_ID is invariable to who sent ABTS to CT exchange */
10142 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
10143 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
10144 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
10145 LPFC_ABTS_UNSOL_INT) {
10146 /* ABTS sent by initiator to CT exchange, the
10147 * RX_ID field will be filled with the newly
10148 * allocated responder XRI.
10150 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
10151 iocbq->sli4_xritag);
10153 /* ABTS sent by responder to CT exchange, the
10154 * RX_ID field will be filled with the responder
10157 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
10158 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
10160 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
10161 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
10164 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
10166 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
10167 iocbq->iocb.ulpContext);
10168 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
10169 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
10170 phba->vpi_ids[phba->pport->vpi]);
10171 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
10172 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
10173 LPFC_WQE_LENLOC_NONE);
10174 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
10175 command_type = OTHER_COMMAND;
10176 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
10177 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
10178 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
10179 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
10180 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
10181 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
10182 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
10186 case CMD_SEND_FRAME:
10187 bf_set(wqe_cmnd, &wqe->generic.wqe_com, CMD_SEND_FRAME);
10188 bf_set(wqe_sof, &wqe->generic.wqe_com, 0x2E); /* SOF byte */
10189 bf_set(wqe_eof, &wqe->generic.wqe_com, 0x41); /* EOF byte */
10190 bf_set(wqe_lenloc, &wqe->generic.wqe_com, 1);
10191 bf_set(wqe_xbl, &wqe->generic.wqe_com, 1);
10192 bf_set(wqe_dbde, &wqe->generic.wqe_com, 1);
10193 bf_set(wqe_xc, &wqe->generic.wqe_com, 1);
10194 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, 0xA);
10195 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
10196 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
10197 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
10199 case CMD_XRI_ABORTED_CX:
10200 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
10201 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
10202 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
10203 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
10204 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
10206 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10207 "2014 Invalid command 0x%x\n",
10208 iocbq->iocb.ulpCommand);
10212 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
10213 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
10214 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
10215 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
10216 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
10217 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
10218 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
10219 LPFC_IO_DIF_INSERT);
10220 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
10221 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
10222 wqe->generic.wqe_com.abort_tag = abort_tag;
10223 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
10224 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
10225 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
10226 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
10231 * __lpfc_sli_issue_fcp_io_s3 - SLI3 device for sending fcp io iocb
10232 * @phba: Pointer to HBA context object.
10233 * @ring_number: SLI ring number to issue wqe on.
10234 * @piocb: Pointer to command iocb.
10235 * @flag: Flag indicating if this command can be put into txq.
10237 * __lpfc_sli_issue_fcp_io_s3 is wrapper function to invoke lockless func to
10238 * send an iocb command to an HBA with SLI-4 interface spec.
10240 * This function takes the hbalock before invoking the lockless version.
10241 * The function will return success after it successfully submit the wqe to
10242 * firmware or after adding to the txq.
10245 __lpfc_sli_issue_fcp_io_s3(struct lpfc_hba *phba, uint32_t ring_number,
10246 struct lpfc_iocbq *piocb, uint32_t flag)
10248 unsigned long iflags;
10251 spin_lock_irqsave(&phba->hbalock, iflags);
10252 rc = __lpfc_sli_issue_iocb_s3(phba, ring_number, piocb, flag);
10253 spin_unlock_irqrestore(&phba->hbalock, iflags);
10259 * __lpfc_sli_issue_fcp_io_s4 - SLI4 device for sending fcp io wqe
10260 * @phba: Pointer to HBA context object.
10261 * @ring_number: SLI ring number to issue wqe on.
10262 * @piocb: Pointer to command iocb.
10263 * @flag: Flag indicating if this command can be put into txq.
10265 * __lpfc_sli_issue_fcp_io_s4 is used by other functions in the driver to issue
10266 * an wqe command to an HBA with SLI-4 interface spec.
10268 * This function is a lockless version. The function will return success
10269 * after it successfully submit the wqe to firmware or after adding to the
10273 __lpfc_sli_issue_fcp_io_s4(struct lpfc_hba *phba, uint32_t ring_number,
10274 struct lpfc_iocbq *piocb, uint32_t flag)
10277 struct lpfc_io_buf *lpfc_cmd =
10278 (struct lpfc_io_buf *)piocb->context1;
10279 union lpfc_wqe128 *wqe = &piocb->wqe;
10280 struct sli4_sge *sgl;
10282 /* 128 byte wqe support here */
10283 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
10285 if (phba->fcp_embed_io) {
10286 struct fcp_cmnd *fcp_cmnd;
10289 fcp_cmnd = lpfc_cmd->fcp_cmnd;
10291 /* Word 0-2 - FCP_CMND */
10292 wqe->generic.bde.tus.f.bdeFlags =
10293 BUFF_TYPE_BDE_IMMED;
10294 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
10295 wqe->generic.bde.addrHigh = 0;
10296 wqe->generic.bde.addrLow = 88; /* Word 22 */
10298 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
10299 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
10301 /* Word 22-29 FCP CMND Payload */
10302 ptr = &wqe->words[22];
10303 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
10305 /* Word 0-2 - Inline BDE */
10306 wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
10307 wqe->generic.bde.tus.f.bdeSize = sizeof(struct fcp_cmnd);
10308 wqe->generic.bde.addrHigh = sgl->addr_hi;
10309 wqe->generic.bde.addrLow = sgl->addr_lo;
10312 bf_set(wqe_dbde, &wqe->generic.wqe_com, 1);
10313 bf_set(wqe_wqes, &wqe->generic.wqe_com, 0);
10316 rc = lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, piocb);
10321 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
10322 * @phba: Pointer to HBA context object.
10323 * @ring_number: SLI ring number to issue iocb on.
10324 * @piocb: Pointer to command iocb.
10325 * @flag: Flag indicating if this command can be put into txq.
10327 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
10328 * an iocb command to an HBA with SLI-4 interface spec.
10330 * This function is called with ringlock held. The function will return success
10331 * after it successfully submit the iocb to firmware or after adding to the
10335 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
10336 struct lpfc_iocbq *piocb, uint32_t flag)
10338 struct lpfc_sglq *sglq;
10339 union lpfc_wqe128 wqe;
10340 struct lpfc_queue *wq;
10341 struct lpfc_sli_ring *pring;
10344 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
10345 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
10346 wq = phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq;
10348 wq = phba->sli4_hba.els_wq;
10351 /* Get corresponding ring */
10355 * The WQE can be either 64 or 128 bytes,
10358 lockdep_assert_held(&pring->ring_lock);
10360 if (piocb->sli4_xritag == NO_XRI) {
10361 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
10362 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
10365 if (!list_empty(&pring->txq)) {
10366 if (!(flag & SLI_IOCB_RET_IOCB)) {
10367 __lpfc_sli_ringtx_put(phba,
10369 return IOCB_SUCCESS;
10374 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
10376 if (!(flag & SLI_IOCB_RET_IOCB)) {
10377 __lpfc_sli_ringtx_put(phba,
10380 return IOCB_SUCCESS;
10386 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
10387 /* These IO's already have an XRI and a mapped sgl. */
10392 * This is a continuation of a commandi,(CX) so this
10393 * sglq is on the active list
10395 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
10401 piocb->sli4_lxritag = sglq->sli4_lxritag;
10402 piocb->sli4_xritag = sglq->sli4_xritag;
10403 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
10407 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
10410 if (lpfc_sli4_wq_put(wq, &wqe))
10412 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
10418 * lpfc_sli_issue_fcp_io - Wrapper func for issuing fcp i/o
10420 * This routine wraps the actual fcp i/o function for issusing WQE for sli-4
10421 * or IOCB for sli-3 function.
10422 * pointer from the lpfc_hba struct.
10425 * IOCB_ERROR - Error
10426 * IOCB_SUCCESS - Success
10430 lpfc_sli_issue_fcp_io(struct lpfc_hba *phba, uint32_t ring_number,
10431 struct lpfc_iocbq *piocb, uint32_t flag)
10433 return phba->__lpfc_sli_issue_fcp_io(phba, ring_number, piocb, flag);
10437 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
10439 * This routine wraps the actual lockless version for issusing IOCB function
10440 * pointer from the lpfc_hba struct.
10443 * IOCB_ERROR - Error
10444 * IOCB_SUCCESS - Success
10448 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10449 struct lpfc_iocbq *piocb, uint32_t flag)
10451 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10455 * lpfc_sli_api_table_setup - Set up sli api function jump table
10456 * @phba: The hba struct for which this call is being executed.
10457 * @dev_grp: The HBA PCI-Device group number.
10459 * This routine sets up the SLI interface API function jump table in @phba
10461 * Returns: 0 - success, -ENODEV - failure.
10464 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
10468 case LPFC_PCI_DEV_LP:
10469 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
10470 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
10471 phba->__lpfc_sli_issue_fcp_io = __lpfc_sli_issue_fcp_io_s3;
10473 case LPFC_PCI_DEV_OC:
10474 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
10475 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
10476 phba->__lpfc_sli_issue_fcp_io = __lpfc_sli_issue_fcp_io_s4;
10479 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10480 "1419 Invalid HBA PCI-device group: 0x%x\n",
10484 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
10489 * lpfc_sli4_calc_ring - Calculates which ring to use
10490 * @phba: Pointer to HBA context object.
10491 * @piocb: Pointer to command iocb.
10493 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
10494 * hba_wqidx, thus we need to calculate the corresponding ring.
10495 * Since ABORTS must go on the same WQ of the command they are
10496 * aborting, we use command's hba_wqidx.
10498 struct lpfc_sli_ring *
10499 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
10501 struct lpfc_io_buf *lpfc_cmd;
10503 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
10504 if (unlikely(!phba->sli4_hba.hdwq))
10507 * for abort iocb hba_wqidx should already
10508 * be setup based on what work queue we used.
10510 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
10511 lpfc_cmd = (struct lpfc_io_buf *)piocb->context1;
10512 piocb->hba_wqidx = lpfc_cmd->hdwq_no;
10514 return phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq->pring;
10516 if (unlikely(!phba->sli4_hba.els_wq))
10518 piocb->hba_wqidx = 0;
10519 return phba->sli4_hba.els_wq->pring;
10524 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
10525 * @phba: Pointer to HBA context object.
10526 * @ring_number: Ring number
10527 * @piocb: Pointer to command iocb.
10528 * @flag: Flag indicating if this command can be put into txq.
10530 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
10531 * function. This function gets the hbalock and calls
10532 * __lpfc_sli_issue_iocb function and will return the error returned
10533 * by __lpfc_sli_issue_iocb function. This wrapper is used by
10534 * functions which do not hold hbalock.
10537 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10538 struct lpfc_iocbq *piocb, uint32_t flag)
10540 struct lpfc_sli_ring *pring;
10541 struct lpfc_queue *eq;
10542 unsigned long iflags;
10545 if (phba->sli_rev == LPFC_SLI_REV4) {
10546 eq = phba->sli4_hba.hdwq[piocb->hba_wqidx].hba_eq;
10548 pring = lpfc_sli4_calc_ring(phba, piocb);
10549 if (unlikely(pring == NULL))
10552 spin_lock_irqsave(&pring->ring_lock, iflags);
10553 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10554 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10556 lpfc_sli4_poll_eq(eq, LPFC_POLL_FASTPATH);
10558 /* For now, SLI2/3 will still use hbalock */
10559 spin_lock_irqsave(&phba->hbalock, iflags);
10560 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10561 spin_unlock_irqrestore(&phba->hbalock, iflags);
10567 * lpfc_extra_ring_setup - Extra ring setup function
10568 * @phba: Pointer to HBA context object.
10570 * This function is called while driver attaches with the
10571 * HBA to setup the extra ring. The extra ring is used
10572 * only when driver needs to support target mode functionality
10573 * or IP over FC functionalities.
10575 * This function is called with no lock held. SLI3 only.
10578 lpfc_extra_ring_setup( struct lpfc_hba *phba)
10580 struct lpfc_sli *psli;
10581 struct lpfc_sli_ring *pring;
10585 /* Adjust cmd/rsp ring iocb entries more evenly */
10587 /* Take some away from the FCP ring */
10588 pring = &psli->sli3_ring[LPFC_FCP_RING];
10589 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10590 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10591 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10592 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10594 /* and give them to the extra ring */
10595 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
10597 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10598 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10599 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10600 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10602 /* Setup default profile for this ring */
10603 pring->iotag_max = 4096;
10604 pring->num_mask = 1;
10605 pring->prt[0].profile = 0; /* Mask 0 */
10606 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
10607 pring->prt[0].type = phba->cfg_multi_ring_type;
10608 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
10613 lpfc_sli_post_recovery_event(struct lpfc_hba *phba,
10614 struct lpfc_nodelist *ndlp)
10616 unsigned long iflags;
10617 struct lpfc_work_evt *evtp = &ndlp->recovery_evt;
10619 spin_lock_irqsave(&phba->hbalock, iflags);
10620 if (!list_empty(&evtp->evt_listp)) {
10621 spin_unlock_irqrestore(&phba->hbalock, iflags);
10625 /* Incrementing the reference count until the queued work is done. */
10626 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
10627 if (!evtp->evt_arg1) {
10628 spin_unlock_irqrestore(&phba->hbalock, iflags);
10631 evtp->evt = LPFC_EVT_RECOVER_PORT;
10632 list_add_tail(&evtp->evt_listp, &phba->work_list);
10633 spin_unlock_irqrestore(&phba->hbalock, iflags);
10635 lpfc_worker_wake_up(phba);
10638 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
10639 * @phba: Pointer to HBA context object.
10640 * @iocbq: Pointer to iocb object.
10642 * The async_event handler calls this routine when it receives
10643 * an ASYNC_STATUS_CN event from the port. The port generates
10644 * this event when an Abort Sequence request to an rport fails
10645 * twice in succession. The abort could be originated by the
10646 * driver or by the port. The ABTS could have been for an ELS
10647 * or FCP IO. The port only generates this event when an ABTS
10648 * fails to complete after one retry.
10651 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
10652 struct lpfc_iocbq *iocbq)
10654 struct lpfc_nodelist *ndlp = NULL;
10655 uint16_t rpi = 0, vpi = 0;
10656 struct lpfc_vport *vport = NULL;
10658 /* The rpi in the ulpContext is vport-sensitive. */
10659 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
10660 rpi = iocbq->iocb.ulpContext;
10662 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10663 "3092 Port generated ABTS async event "
10664 "on vpi %d rpi %d status 0x%x\n",
10665 vpi, rpi, iocbq->iocb.ulpStatus);
10667 vport = lpfc_find_vport_by_vpid(phba, vpi);
10670 ndlp = lpfc_findnode_rpi(vport, rpi);
10674 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
10675 lpfc_sli_abts_recover_port(vport, ndlp);
10679 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10680 "3095 Event Context not found, no "
10681 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
10682 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
10686 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
10687 * @phba: pointer to HBA context object.
10688 * @ndlp: nodelist pointer for the impacted rport.
10689 * @axri: pointer to the wcqe containing the failed exchange.
10691 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
10692 * port. The port generates this event when an abort exchange request to an
10693 * rport fails twice in succession with no reply. The abort could be originated
10694 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
10697 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
10698 struct lpfc_nodelist *ndlp,
10699 struct sli4_wcqe_xri_aborted *axri)
10701 uint32_t ext_status = 0;
10704 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10705 "3115 Node Context not found, driver "
10706 "ignoring abts err event\n");
10710 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10711 "3116 Port generated FCP XRI ABORT event on "
10712 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
10713 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
10714 bf_get(lpfc_wcqe_xa_xri, axri),
10715 bf_get(lpfc_wcqe_xa_status, axri),
10719 * Catch the ABTS protocol failure case. Older OCe FW releases returned
10720 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
10721 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
10723 ext_status = axri->parameter & IOERR_PARAM_MASK;
10724 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
10725 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
10726 lpfc_sli_post_recovery_event(phba, ndlp);
10730 * lpfc_sli_async_event_handler - ASYNC iocb handler function
10731 * @phba: Pointer to HBA context object.
10732 * @pring: Pointer to driver SLI ring object.
10733 * @iocbq: Pointer to iocb object.
10735 * This function is called by the slow ring event handler
10736 * function when there is an ASYNC event iocb in the ring.
10737 * This function is called with no lock held.
10738 * Currently this function handles only temperature related
10739 * ASYNC events. The function decodes the temperature sensor
10740 * event message and posts events for the management applications.
10743 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
10744 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
10748 struct temp_event temp_event_data;
10749 struct Scsi_Host *shost;
10752 icmd = &iocbq->iocb;
10753 evt_code = icmd->un.asyncstat.evt_code;
10755 switch (evt_code) {
10756 case ASYNC_TEMP_WARN:
10757 case ASYNC_TEMP_SAFE:
10758 temp_event_data.data = (uint32_t) icmd->ulpContext;
10759 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
10760 if (evt_code == ASYNC_TEMP_WARN) {
10761 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
10762 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10763 "0347 Adapter is very hot, please take "
10764 "corrective action. temperature : %d Celsius\n",
10765 (uint32_t) icmd->ulpContext);
10767 temp_event_data.event_code = LPFC_NORMAL_TEMP;
10768 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10769 "0340 Adapter temperature is OK now. "
10770 "temperature : %d Celsius\n",
10771 (uint32_t) icmd->ulpContext);
10774 /* Send temperature change event to applications */
10775 shost = lpfc_shost_from_vport(phba->pport);
10776 fc_host_post_vendor_event(shost, fc_get_event_number(),
10777 sizeof(temp_event_data), (char *) &temp_event_data,
10778 LPFC_NL_VENDOR_ID);
10780 case ASYNC_STATUS_CN:
10781 lpfc_sli_abts_err_handler(phba, iocbq);
10784 iocb_w = (uint32_t *) icmd;
10785 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10786 "0346 Ring %d handler: unexpected ASYNC_STATUS"
10788 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
10789 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
10790 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
10791 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
10792 pring->ringno, icmd->un.asyncstat.evt_code,
10793 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
10794 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
10795 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
10796 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
10804 * lpfc_sli4_setup - SLI ring setup function
10805 * @phba: Pointer to HBA context object.
10807 * lpfc_sli_setup sets up rings of the SLI interface with
10808 * number of iocbs per ring and iotags. This function is
10809 * called while driver attach to the HBA and before the
10810 * interrupts are enabled. So there is no need for locking.
10812 * This function always returns 0.
10815 lpfc_sli4_setup(struct lpfc_hba *phba)
10817 struct lpfc_sli_ring *pring;
10819 pring = phba->sli4_hba.els_wq->pring;
10820 pring->num_mask = LPFC_MAX_RING_MASK;
10821 pring->prt[0].profile = 0; /* Mask 0 */
10822 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10823 pring->prt[0].type = FC_TYPE_ELS;
10824 pring->prt[0].lpfc_sli_rcv_unsol_event =
10825 lpfc_els_unsol_event;
10826 pring->prt[1].profile = 0; /* Mask 1 */
10827 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10828 pring->prt[1].type = FC_TYPE_ELS;
10829 pring->prt[1].lpfc_sli_rcv_unsol_event =
10830 lpfc_els_unsol_event;
10831 pring->prt[2].profile = 0; /* Mask 2 */
10832 /* NameServer Inquiry */
10833 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10835 pring->prt[2].type = FC_TYPE_CT;
10836 pring->prt[2].lpfc_sli_rcv_unsol_event =
10837 lpfc_ct_unsol_event;
10838 pring->prt[3].profile = 0; /* Mask 3 */
10839 /* NameServer response */
10840 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10842 pring->prt[3].type = FC_TYPE_CT;
10843 pring->prt[3].lpfc_sli_rcv_unsol_event =
10844 lpfc_ct_unsol_event;
10849 * lpfc_sli_setup - SLI ring setup function
10850 * @phba: Pointer to HBA context object.
10852 * lpfc_sli_setup sets up rings of the SLI interface with
10853 * number of iocbs per ring and iotags. This function is
10854 * called while driver attach to the HBA and before the
10855 * interrupts are enabled. So there is no need for locking.
10857 * This function always returns 0. SLI3 only.
10860 lpfc_sli_setup(struct lpfc_hba *phba)
10862 int i, totiocbsize = 0;
10863 struct lpfc_sli *psli = &phba->sli;
10864 struct lpfc_sli_ring *pring;
10866 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
10867 psli->sli_flag = 0;
10869 psli->iocbq_lookup = NULL;
10870 psli->iocbq_lookup_len = 0;
10871 psli->last_iotag = 0;
10873 for (i = 0; i < psli->num_rings; i++) {
10874 pring = &psli->sli3_ring[i];
10876 case LPFC_FCP_RING: /* ring 0 - FCP */
10877 /* numCiocb and numRiocb are used in config_port */
10878 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
10879 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
10880 pring->sli.sli3.numCiocb +=
10881 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10882 pring->sli.sli3.numRiocb +=
10883 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10884 pring->sli.sli3.numCiocb +=
10885 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10886 pring->sli.sli3.numRiocb +=
10887 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10888 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10889 SLI3_IOCB_CMD_SIZE :
10890 SLI2_IOCB_CMD_SIZE;
10891 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10892 SLI3_IOCB_RSP_SIZE :
10893 SLI2_IOCB_RSP_SIZE;
10894 pring->iotag_ctr = 0;
10896 (phba->cfg_hba_queue_depth * 2);
10897 pring->fast_iotag = pring->iotag_max;
10898 pring->num_mask = 0;
10900 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
10901 /* numCiocb and numRiocb are used in config_port */
10902 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
10903 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
10904 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10905 SLI3_IOCB_CMD_SIZE :
10906 SLI2_IOCB_CMD_SIZE;
10907 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10908 SLI3_IOCB_RSP_SIZE :
10909 SLI2_IOCB_RSP_SIZE;
10910 pring->iotag_max = phba->cfg_hba_queue_depth;
10911 pring->num_mask = 0;
10913 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
10914 /* numCiocb and numRiocb are used in config_port */
10915 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
10916 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
10917 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10918 SLI3_IOCB_CMD_SIZE :
10919 SLI2_IOCB_CMD_SIZE;
10920 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10921 SLI3_IOCB_RSP_SIZE :
10922 SLI2_IOCB_RSP_SIZE;
10923 pring->fast_iotag = 0;
10924 pring->iotag_ctr = 0;
10925 pring->iotag_max = 4096;
10926 pring->lpfc_sli_rcv_async_status =
10927 lpfc_sli_async_event_handler;
10928 pring->num_mask = LPFC_MAX_RING_MASK;
10929 pring->prt[0].profile = 0; /* Mask 0 */
10930 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10931 pring->prt[0].type = FC_TYPE_ELS;
10932 pring->prt[0].lpfc_sli_rcv_unsol_event =
10933 lpfc_els_unsol_event;
10934 pring->prt[1].profile = 0; /* Mask 1 */
10935 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10936 pring->prt[1].type = FC_TYPE_ELS;
10937 pring->prt[1].lpfc_sli_rcv_unsol_event =
10938 lpfc_els_unsol_event;
10939 pring->prt[2].profile = 0; /* Mask 2 */
10940 /* NameServer Inquiry */
10941 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10943 pring->prt[2].type = FC_TYPE_CT;
10944 pring->prt[2].lpfc_sli_rcv_unsol_event =
10945 lpfc_ct_unsol_event;
10946 pring->prt[3].profile = 0; /* Mask 3 */
10947 /* NameServer response */
10948 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10950 pring->prt[3].type = FC_TYPE_CT;
10951 pring->prt[3].lpfc_sli_rcv_unsol_event =
10952 lpfc_ct_unsol_event;
10955 totiocbsize += (pring->sli.sli3.numCiocb *
10956 pring->sli.sli3.sizeCiocb) +
10957 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
10959 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
10960 /* Too many cmd / rsp ring entries in SLI2 SLIM */
10961 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
10962 "SLI2 SLIM Data: x%x x%lx\n",
10963 phba->brd_no, totiocbsize,
10964 (unsigned long) MAX_SLIM_IOCB_SIZE);
10966 if (phba->cfg_multi_ring_support == 2)
10967 lpfc_extra_ring_setup(phba);
10973 * lpfc_sli4_queue_init - Queue initialization function
10974 * @phba: Pointer to HBA context object.
10976 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
10977 * ring. This function also initializes ring indices of each ring.
10978 * This function is called during the initialization of the SLI
10979 * interface of an HBA.
10980 * This function is called with no lock held and always returns
10984 lpfc_sli4_queue_init(struct lpfc_hba *phba)
10986 struct lpfc_sli *psli;
10987 struct lpfc_sli_ring *pring;
10991 spin_lock_irq(&phba->hbalock);
10992 INIT_LIST_HEAD(&psli->mboxq);
10993 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10994 /* Initialize list headers for txq and txcmplq as double linked lists */
10995 for (i = 0; i < phba->cfg_hdw_queue; i++) {
10996 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
10998 pring->ringno = LPFC_FCP_RING;
10999 pring->txcmplq_cnt = 0;
11000 INIT_LIST_HEAD(&pring->txq);
11001 INIT_LIST_HEAD(&pring->txcmplq);
11002 INIT_LIST_HEAD(&pring->iocb_continueq);
11003 spin_lock_init(&pring->ring_lock);
11005 pring = phba->sli4_hba.els_wq->pring;
11007 pring->ringno = LPFC_ELS_RING;
11008 pring->txcmplq_cnt = 0;
11009 INIT_LIST_HEAD(&pring->txq);
11010 INIT_LIST_HEAD(&pring->txcmplq);
11011 INIT_LIST_HEAD(&pring->iocb_continueq);
11012 spin_lock_init(&pring->ring_lock);
11014 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11015 pring = phba->sli4_hba.nvmels_wq->pring;
11017 pring->ringno = LPFC_ELS_RING;
11018 pring->txcmplq_cnt = 0;
11019 INIT_LIST_HEAD(&pring->txq);
11020 INIT_LIST_HEAD(&pring->txcmplq);
11021 INIT_LIST_HEAD(&pring->iocb_continueq);
11022 spin_lock_init(&pring->ring_lock);
11025 spin_unlock_irq(&phba->hbalock);
11029 * lpfc_sli_queue_init - Queue initialization function
11030 * @phba: Pointer to HBA context object.
11032 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
11033 * ring. This function also initializes ring indices of each ring.
11034 * This function is called during the initialization of the SLI
11035 * interface of an HBA.
11036 * This function is called with no lock held and always returns
11040 lpfc_sli_queue_init(struct lpfc_hba *phba)
11042 struct lpfc_sli *psli;
11043 struct lpfc_sli_ring *pring;
11047 spin_lock_irq(&phba->hbalock);
11048 INIT_LIST_HEAD(&psli->mboxq);
11049 INIT_LIST_HEAD(&psli->mboxq_cmpl);
11050 /* Initialize list headers for txq and txcmplq as double linked lists */
11051 for (i = 0; i < psli->num_rings; i++) {
11052 pring = &psli->sli3_ring[i];
11054 pring->sli.sli3.next_cmdidx = 0;
11055 pring->sli.sli3.local_getidx = 0;
11056 pring->sli.sli3.cmdidx = 0;
11057 INIT_LIST_HEAD(&pring->iocb_continueq);
11058 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
11059 INIT_LIST_HEAD(&pring->postbufq);
11061 INIT_LIST_HEAD(&pring->txq);
11062 INIT_LIST_HEAD(&pring->txcmplq);
11063 spin_lock_init(&pring->ring_lock);
11065 spin_unlock_irq(&phba->hbalock);
11069 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
11070 * @phba: Pointer to HBA context object.
11072 * This routine flushes the mailbox command subsystem. It will unconditionally
11073 * flush all the mailbox commands in the three possible stages in the mailbox
11074 * command sub-system: pending mailbox command queue; the outstanding mailbox
11075 * command; and completed mailbox command queue. It is caller's responsibility
11076 * to make sure that the driver is in the proper state to flush the mailbox
11077 * command sub-system. Namely, the posting of mailbox commands into the
11078 * pending mailbox command queue from the various clients must be stopped;
11079 * either the HBA is in a state that it will never works on the outstanding
11080 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
11081 * mailbox command has been completed.
11084 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
11086 LIST_HEAD(completions);
11087 struct lpfc_sli *psli = &phba->sli;
11089 unsigned long iflag;
11091 /* Disable softirqs, including timers from obtaining phba->hbalock */
11092 local_bh_disable();
11094 /* Flush all the mailbox commands in the mbox system */
11095 spin_lock_irqsave(&phba->hbalock, iflag);
11097 /* The pending mailbox command queue */
11098 list_splice_init(&phba->sli.mboxq, &completions);
11099 /* The outstanding active mailbox command */
11100 if (psli->mbox_active) {
11101 list_add_tail(&psli->mbox_active->list, &completions);
11102 psli->mbox_active = NULL;
11103 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11105 /* The completed mailbox command queue */
11106 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
11107 spin_unlock_irqrestore(&phba->hbalock, iflag);
11109 /* Enable softirqs again, done with phba->hbalock */
11112 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
11113 while (!list_empty(&completions)) {
11114 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
11115 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
11116 if (pmb->mbox_cmpl)
11117 pmb->mbox_cmpl(phba, pmb);
11122 * lpfc_sli_host_down - Vport cleanup function
11123 * @vport: Pointer to virtual port object.
11125 * lpfc_sli_host_down is called to clean up the resources
11126 * associated with a vport before destroying virtual
11127 * port data structures.
11128 * This function does following operations:
11129 * - Free discovery resources associated with this virtual
11131 * - Free iocbs associated with this virtual port in
11133 * - Send abort for all iocb commands associated with this
11134 * vport in txcmplq.
11136 * This function is called with no lock held and always returns 1.
11139 lpfc_sli_host_down(struct lpfc_vport *vport)
11141 LIST_HEAD(completions);
11142 struct lpfc_hba *phba = vport->phba;
11143 struct lpfc_sli *psli = &phba->sli;
11144 struct lpfc_queue *qp = NULL;
11145 struct lpfc_sli_ring *pring;
11146 struct lpfc_iocbq *iocb, *next_iocb;
11148 unsigned long flags = 0;
11149 uint16_t prev_pring_flag;
11151 lpfc_cleanup_discovery_resources(vport);
11153 spin_lock_irqsave(&phba->hbalock, flags);
11156 * Error everything on the txq since these iocbs
11157 * have not been given to the FW yet.
11158 * Also issue ABTS for everything on the txcmplq
11160 if (phba->sli_rev != LPFC_SLI_REV4) {
11161 for (i = 0; i < psli->num_rings; i++) {
11162 pring = &psli->sli3_ring[i];
11163 prev_pring_flag = pring->flag;
11164 /* Only slow rings */
11165 if (pring->ringno == LPFC_ELS_RING) {
11166 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11167 /* Set the lpfc data pending flag */
11168 set_bit(LPFC_DATA_READY, &phba->data_flags);
11170 list_for_each_entry_safe(iocb, next_iocb,
11171 &pring->txq, list) {
11172 if (iocb->vport != vport)
11174 list_move_tail(&iocb->list, &completions);
11176 list_for_each_entry_safe(iocb, next_iocb,
11177 &pring->txcmplq, list) {
11178 if (iocb->vport != vport)
11180 lpfc_sli_issue_abort_iotag(phba, pring, iocb,
11183 pring->flag = prev_pring_flag;
11186 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11190 if (pring == phba->sli4_hba.els_wq->pring) {
11191 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11192 /* Set the lpfc data pending flag */
11193 set_bit(LPFC_DATA_READY, &phba->data_flags);
11195 prev_pring_flag = pring->flag;
11196 spin_lock(&pring->ring_lock);
11197 list_for_each_entry_safe(iocb, next_iocb,
11198 &pring->txq, list) {
11199 if (iocb->vport != vport)
11201 list_move_tail(&iocb->list, &completions);
11203 spin_unlock(&pring->ring_lock);
11204 list_for_each_entry_safe(iocb, next_iocb,
11205 &pring->txcmplq, list) {
11206 if (iocb->vport != vport)
11208 lpfc_sli_issue_abort_iotag(phba, pring, iocb,
11211 pring->flag = prev_pring_flag;
11214 spin_unlock_irqrestore(&phba->hbalock, flags);
11216 /* Make sure HBA is alive */
11217 lpfc_issue_hb_tmo(phba);
11219 /* Cancel all the IOCBs from the completions list */
11220 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
11226 * lpfc_sli_hba_down - Resource cleanup function for the HBA
11227 * @phba: Pointer to HBA context object.
11229 * This function cleans up all iocb, buffers, mailbox commands
11230 * while shutting down the HBA. This function is called with no
11231 * lock held and always returns 1.
11232 * This function does the following to cleanup driver resources:
11233 * - Free discovery resources for each virtual port
11234 * - Cleanup any pending fabric iocbs
11235 * - Iterate through the iocb txq and free each entry
11237 * - Free up any buffer posted to the HBA
11238 * - Free mailbox commands in the mailbox queue.
11241 lpfc_sli_hba_down(struct lpfc_hba *phba)
11243 LIST_HEAD(completions);
11244 struct lpfc_sli *psli = &phba->sli;
11245 struct lpfc_queue *qp = NULL;
11246 struct lpfc_sli_ring *pring;
11247 struct lpfc_dmabuf *buf_ptr;
11248 unsigned long flags = 0;
11251 /* Shutdown the mailbox command sub-system */
11252 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
11254 lpfc_hba_down_prep(phba);
11256 /* Disable softirqs, including timers from obtaining phba->hbalock */
11257 local_bh_disable();
11259 lpfc_fabric_abort_hba(phba);
11261 spin_lock_irqsave(&phba->hbalock, flags);
11264 * Error everything on the txq since these iocbs
11265 * have not been given to the FW yet.
11267 if (phba->sli_rev != LPFC_SLI_REV4) {
11268 for (i = 0; i < psli->num_rings; i++) {
11269 pring = &psli->sli3_ring[i];
11270 /* Only slow rings */
11271 if (pring->ringno == LPFC_ELS_RING) {
11272 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11273 /* Set the lpfc data pending flag */
11274 set_bit(LPFC_DATA_READY, &phba->data_flags);
11276 list_splice_init(&pring->txq, &completions);
11279 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11283 spin_lock(&pring->ring_lock);
11284 list_splice_init(&pring->txq, &completions);
11285 spin_unlock(&pring->ring_lock);
11286 if (pring == phba->sli4_hba.els_wq->pring) {
11287 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11288 /* Set the lpfc data pending flag */
11289 set_bit(LPFC_DATA_READY, &phba->data_flags);
11293 spin_unlock_irqrestore(&phba->hbalock, flags);
11295 /* Cancel all the IOCBs from the completions list */
11296 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
11299 spin_lock_irqsave(&phba->hbalock, flags);
11300 list_splice_init(&phba->elsbuf, &completions);
11301 phba->elsbuf_cnt = 0;
11302 phba->elsbuf_prev_cnt = 0;
11303 spin_unlock_irqrestore(&phba->hbalock, flags);
11305 while (!list_empty(&completions)) {
11306 list_remove_head(&completions, buf_ptr,
11307 struct lpfc_dmabuf, list);
11308 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
11312 /* Enable softirqs again, done with phba->hbalock */
11315 /* Return any active mbox cmds */
11316 del_timer_sync(&psli->mbox_tmo);
11318 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
11319 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11320 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
11326 * lpfc_sli_pcimem_bcopy - SLI memory copy function
11327 * @srcp: Source memory pointer.
11328 * @destp: Destination memory pointer.
11329 * @cnt: Number of words required to be copied.
11331 * This function is used for copying data between driver memory
11332 * and the SLI memory. This function also changes the endianness
11333 * of each word if native endianness is different from SLI
11334 * endianness. This function can be called with or without
11338 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
11340 uint32_t *src = srcp;
11341 uint32_t *dest = destp;
11345 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
11347 ldata = le32_to_cpu(ldata);
11356 * lpfc_sli_bemem_bcopy - SLI memory copy function
11357 * @srcp: Source memory pointer.
11358 * @destp: Destination memory pointer.
11359 * @cnt: Number of words required to be copied.
11361 * This function is used for copying data between a data structure
11362 * with big endian representation to local endianness.
11363 * This function can be called with or without lock.
11366 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
11368 uint32_t *src = srcp;
11369 uint32_t *dest = destp;
11373 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
11375 ldata = be32_to_cpu(ldata);
11383 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
11384 * @phba: Pointer to HBA context object.
11385 * @pring: Pointer to driver SLI ring object.
11386 * @mp: Pointer to driver buffer object.
11388 * This function is called with no lock held.
11389 * It always return zero after adding the buffer to the postbufq
11393 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11394 struct lpfc_dmabuf *mp)
11396 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
11398 spin_lock_irq(&phba->hbalock);
11399 list_add_tail(&mp->list, &pring->postbufq);
11400 pring->postbufq_cnt++;
11401 spin_unlock_irq(&phba->hbalock);
11406 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
11407 * @phba: Pointer to HBA context object.
11409 * When HBQ is enabled, buffers are searched based on tags. This function
11410 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
11411 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
11412 * does not conflict with tags of buffer posted for unsolicited events.
11413 * The function returns the allocated tag. The function is called with
11417 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
11419 spin_lock_irq(&phba->hbalock);
11420 phba->buffer_tag_count++;
11422 * Always set the QUE_BUFTAG_BIT to distiguish between
11423 * a tag assigned by HBQ.
11425 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
11426 spin_unlock_irq(&phba->hbalock);
11427 return phba->buffer_tag_count;
11431 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
11432 * @phba: Pointer to HBA context object.
11433 * @pring: Pointer to driver SLI ring object.
11434 * @tag: Buffer tag.
11436 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
11437 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
11438 * iocb is posted to the response ring with the tag of the buffer.
11439 * This function searches the pring->postbufq list using the tag
11440 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
11441 * iocb. If the buffer is found then lpfc_dmabuf object of the
11442 * buffer is returned to the caller else NULL is returned.
11443 * This function is called with no lock held.
11445 struct lpfc_dmabuf *
11446 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11449 struct lpfc_dmabuf *mp, *next_mp;
11450 struct list_head *slp = &pring->postbufq;
11452 /* Search postbufq, from the beginning, looking for a match on tag */
11453 spin_lock_irq(&phba->hbalock);
11454 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
11455 if (mp->buffer_tag == tag) {
11456 list_del_init(&mp->list);
11457 pring->postbufq_cnt--;
11458 spin_unlock_irq(&phba->hbalock);
11463 spin_unlock_irq(&phba->hbalock);
11464 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11465 "0402 Cannot find virtual addr for buffer tag on "
11466 "ring %d Data x%lx x%px x%px x%x\n",
11467 pring->ringno, (unsigned long) tag,
11468 slp->next, slp->prev, pring->postbufq_cnt);
11474 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
11475 * @phba: Pointer to HBA context object.
11476 * @pring: Pointer to driver SLI ring object.
11477 * @phys: DMA address of the buffer.
11479 * This function searches the buffer list using the dma_address
11480 * of unsolicited event to find the driver's lpfc_dmabuf object
11481 * corresponding to the dma_address. The function returns the
11482 * lpfc_dmabuf object if a buffer is found else it returns NULL.
11483 * This function is called by the ct and els unsolicited event
11484 * handlers to get the buffer associated with the unsolicited
11487 * This function is called with no lock held.
11489 struct lpfc_dmabuf *
11490 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11493 struct lpfc_dmabuf *mp, *next_mp;
11494 struct list_head *slp = &pring->postbufq;
11496 /* Search postbufq, from the beginning, looking for a match on phys */
11497 spin_lock_irq(&phba->hbalock);
11498 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
11499 if (mp->phys == phys) {
11500 list_del_init(&mp->list);
11501 pring->postbufq_cnt--;
11502 spin_unlock_irq(&phba->hbalock);
11507 spin_unlock_irq(&phba->hbalock);
11508 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11509 "0410 Cannot find virtual addr for mapped buf on "
11510 "ring %d Data x%llx x%px x%px x%x\n",
11511 pring->ringno, (unsigned long long)phys,
11512 slp->next, slp->prev, pring->postbufq_cnt);
11517 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
11518 * @phba: Pointer to HBA context object.
11519 * @cmdiocb: Pointer to driver command iocb object.
11520 * @rspiocb: Pointer to driver response iocb object.
11522 * This function is the completion handler for the abort iocbs for
11523 * ELS commands. This function is called from the ELS ring event
11524 * handler with no lock held. This function frees memory resources
11525 * associated with the abort iocb.
11528 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11529 struct lpfc_iocbq *rspiocb)
11531 IOCB_t *irsp = &rspiocb->iocb;
11532 uint16_t abort_iotag, abort_context;
11533 struct lpfc_iocbq *abort_iocb = NULL;
11535 if (irsp->ulpStatus) {
11538 * Assume that the port already completed and returned, or
11539 * will return the iocb. Just Log the message.
11541 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
11542 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
11544 spin_lock_irq(&phba->hbalock);
11545 if (phba->sli_rev < LPFC_SLI_REV4) {
11546 if (irsp->ulpCommand == CMD_ABORT_XRI_CX &&
11547 irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
11548 irsp->un.ulpWord[4] == IOERR_ABORT_REQUESTED) {
11549 spin_unlock_irq(&phba->hbalock);
11552 if (abort_iotag != 0 &&
11553 abort_iotag <= phba->sli.last_iotag)
11555 phba->sli.iocbq_lookup[abort_iotag];
11557 /* For sli4 the abort_tag is the XRI,
11558 * so the abort routine puts the iotag of the iocb
11559 * being aborted in the context field of the abort
11562 abort_iocb = phba->sli.iocbq_lookup[abort_context];
11564 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
11565 "0327 Cannot abort els iocb x%px "
11566 "with tag %x context %x, abort status %x, "
11568 abort_iocb, abort_iotag, abort_context,
11569 irsp->ulpStatus, irsp->un.ulpWord[4]);
11571 spin_unlock_irq(&phba->hbalock);
11574 lpfc_sli_release_iocbq(phba, cmdiocb);
11579 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
11580 * @phba: Pointer to HBA context object.
11581 * @cmdiocb: Pointer to driver command iocb object.
11582 * @rspiocb: Pointer to driver response iocb object.
11584 * The function is called from SLI ring event handler with no
11585 * lock held. This function is the completion handler for ELS commands
11586 * which are aborted. The function frees memory resources used for
11587 * the aborted ELS commands.
11590 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11591 struct lpfc_iocbq *rspiocb)
11593 IOCB_t *irsp = &rspiocb->iocb;
11595 /* ELS cmd tag <ulpIoTag> completes */
11596 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11597 "0139 Ignoring ELS cmd tag x%x completion Data: "
11599 irsp->ulpIoTag, irsp->ulpStatus,
11600 irsp->un.ulpWord[4], irsp->ulpTimeout);
11601 lpfc_nlp_put((struct lpfc_nodelist *)cmdiocb->context1);
11602 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
11603 lpfc_ct_free_iocb(phba, cmdiocb);
11605 lpfc_els_free_iocb(phba, cmdiocb);
11609 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
11610 * @phba: Pointer to HBA context object.
11611 * @pring: Pointer to driver SLI ring object.
11612 * @cmdiocb: Pointer to driver command iocb object.
11613 * @cmpl: completion function.
11615 * This function issues an abort iocb for the provided command iocb. In case
11616 * of unloading, the abort iocb will not be issued to commands on the ELS
11617 * ring. Instead, the callback function shall be changed to those commands
11618 * so that nothing happens when them finishes. This function is called with
11619 * hbalock held andno ring_lock held (SLI4). The function returns IOCB_SUCCESS
11620 * when the command iocb is an abort request.
11624 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11625 struct lpfc_iocbq *cmdiocb, void *cmpl)
11627 struct lpfc_vport *vport = cmdiocb->vport;
11628 struct lpfc_iocbq *abtsiocbp;
11629 IOCB_t *icmd = NULL;
11630 IOCB_t *iabt = NULL;
11631 int retval = IOCB_ERROR;
11632 unsigned long iflags;
11633 struct lpfc_nodelist *ndlp;
11636 * There are certain command types we don't want to abort. And we
11637 * don't want to abort commands that are already in the process of
11640 icmd = &cmdiocb->iocb;
11641 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11642 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11643 cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED)
11644 return IOCB_ABORTING;
11647 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11648 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11650 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11655 * If we're unloading, don't abort iocb on the ELS ring, but change
11656 * the callback so that nothing happens when it finishes.
11658 if ((vport->load_flag & FC_UNLOADING) &&
11659 pring->ringno == LPFC_ELS_RING) {
11660 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11661 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11663 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11667 /* issue ABTS for this IOCB based on iotag */
11668 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11669 if (abtsiocbp == NULL)
11670 return IOCB_NORESOURCE;
11672 /* This signals the response to set the correct status
11673 * before calling the completion handler
11675 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11677 iabt = &abtsiocbp->iocb;
11678 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
11679 iabt->un.acxri.abortContextTag = icmd->ulpContext;
11680 if (phba->sli_rev == LPFC_SLI_REV4) {
11681 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
11682 if (pring->ringno == LPFC_ELS_RING)
11683 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
11685 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
11686 if (pring->ringno == LPFC_ELS_RING) {
11687 ndlp = (struct lpfc_nodelist *)(cmdiocb->context1);
11688 iabt->un.acxri.abortContextTag = ndlp->nlp_rpi;
11692 iabt->ulpClass = icmd->ulpClass;
11694 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11695 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
11696 if (cmdiocb->iocb_flag & LPFC_IO_FCP) {
11697 abtsiocbp->iocb_flag |= LPFC_IO_FCP;
11698 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
11700 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
11701 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
11703 if (phba->link_state >= LPFC_LINK_UP)
11704 iabt->ulpCommand = CMD_ABORT_XRI_CN;
11706 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
11709 abtsiocbp->iocb_cmpl = cmpl;
11711 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
11712 abtsiocbp->vport = vport;
11714 if (phba->sli_rev == LPFC_SLI_REV4) {
11715 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
11716 if (unlikely(pring == NULL))
11717 goto abort_iotag_exit;
11718 /* Note: both hbalock and ring_lock need to be set here */
11719 spin_lock_irqsave(&pring->ring_lock, iflags);
11720 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11722 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11724 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11730 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
11731 "0339 Abort xri x%x, original iotag x%x, "
11732 "abort cmd iotag x%x retval x%x\n",
11733 iabt->un.acxri.abortIoTag,
11734 iabt->un.acxri.abortContextTag,
11735 abtsiocbp->iotag, retval);
11738 cmdiocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
11739 __lpfc_sli_release_iocbq(phba, abtsiocbp);
11743 * Caller to this routine should check for IOCB_ERROR
11744 * and handle it properly. This routine no longer removes
11745 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11751 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
11752 * @phba: pointer to lpfc HBA data structure.
11754 * This routine will abort all pending and outstanding iocbs to an HBA.
11757 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
11759 struct lpfc_sli *psli = &phba->sli;
11760 struct lpfc_sli_ring *pring;
11761 struct lpfc_queue *qp = NULL;
11764 if (phba->sli_rev != LPFC_SLI_REV4) {
11765 for (i = 0; i < psli->num_rings; i++) {
11766 pring = &psli->sli3_ring[i];
11767 lpfc_sli_abort_iocb_ring(phba, pring);
11771 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11775 lpfc_sli_abort_iocb_ring(phba, pring);
11780 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
11781 * @iocbq: Pointer to driver iocb object.
11782 * @vport: Pointer to driver virtual port object.
11783 * @tgt_id: SCSI ID of the target.
11784 * @lun_id: LUN ID of the scsi device.
11785 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
11787 * This function acts as an iocb filter for functions which abort or count
11788 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
11789 * 0 if the filtering criteria is met for the given iocb and will return
11790 * 1 if the filtering criteria is not met.
11791 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
11792 * given iocb is for the SCSI device specified by vport, tgt_id and
11793 * lun_id parameter.
11794 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
11795 * given iocb is for the SCSI target specified by vport and tgt_id
11797 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
11798 * given iocb is for the SCSI host associated with the given vport.
11799 * This function is called with no locks held.
11802 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
11803 uint16_t tgt_id, uint64_t lun_id,
11804 lpfc_ctx_cmd ctx_cmd)
11806 struct lpfc_io_buf *lpfc_cmd;
11807 IOCB_t *icmd = NULL;
11810 if (!iocbq || iocbq->vport != vport)
11813 if (!(iocbq->iocb_flag & LPFC_IO_FCP) ||
11814 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ) ||
11815 iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11818 icmd = &iocbq->iocb;
11819 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11820 icmd->ulpCommand == CMD_CLOSE_XRI_CN)
11823 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
11825 if (lpfc_cmd->pCmd == NULL)
11830 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11831 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
11832 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
11836 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11837 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
11840 case LPFC_CTX_HOST:
11844 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
11845 __func__, ctx_cmd);
11853 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
11854 * @vport: Pointer to virtual port.
11855 * @tgt_id: SCSI ID of the target.
11856 * @lun_id: LUN ID of the scsi device.
11857 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11859 * This function returns number of FCP commands pending for the vport.
11860 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
11861 * commands pending on the vport associated with SCSI device specified
11862 * by tgt_id and lun_id parameters.
11863 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
11864 * commands pending on the vport associated with SCSI target specified
11865 * by tgt_id parameter.
11866 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
11867 * commands pending on the vport.
11868 * This function returns the number of iocbs which satisfy the filter.
11869 * This function is called without any lock held.
11872 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
11873 lpfc_ctx_cmd ctx_cmd)
11875 struct lpfc_hba *phba = vport->phba;
11876 struct lpfc_iocbq *iocbq;
11879 spin_lock_irq(&phba->hbalock);
11880 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
11881 iocbq = phba->sli.iocbq_lookup[i];
11883 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
11887 spin_unlock_irq(&phba->hbalock);
11893 * lpfc_sli4_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
11894 * @phba: Pointer to HBA context object
11895 * @cmdiocb: Pointer to command iocb object.
11896 * @wcqe: pointer to the complete wcqe
11898 * This function is called when an aborted FCP iocb completes. This
11899 * function is called by the ring event handler with no lock held.
11900 * This function frees the iocb. It is called for sli-4 adapters.
11903 lpfc_sli4_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11904 struct lpfc_wcqe_complete *wcqe)
11906 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11907 "3017 ABORT_XRI_CN completing on rpi x%x "
11908 "original iotag x%x, abort cmd iotag x%x "
11909 "status 0x%x, reason 0x%x\n",
11910 cmdiocb->iocb.un.acxri.abortContextTag,
11911 cmdiocb->iocb.un.acxri.abortIoTag,
11913 (bf_get(lpfc_wcqe_c_status, wcqe)
11914 & LPFC_IOCB_STATUS_MASK),
11916 lpfc_sli_release_iocbq(phba, cmdiocb);
11920 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
11921 * @phba: Pointer to HBA context object
11922 * @cmdiocb: Pointer to command iocb object.
11923 * @rspiocb: Pointer to response iocb object.
11925 * This function is called when an aborted FCP iocb completes. This
11926 * function is called by the ring event handler with no lock held.
11927 * This function frees the iocb.
11930 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11931 struct lpfc_iocbq *rspiocb)
11933 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11934 "3096 ABORT_XRI_CN completing on rpi x%x "
11935 "original iotag x%x, abort cmd iotag x%x "
11936 "status 0x%x, reason 0x%x\n",
11937 cmdiocb->iocb.un.acxri.abortContextTag,
11938 cmdiocb->iocb.un.acxri.abortIoTag,
11939 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
11940 rspiocb->iocb.un.ulpWord[4]);
11941 lpfc_sli_release_iocbq(phba, cmdiocb);
11946 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
11947 * @vport: Pointer to virtual port.
11948 * @tgt_id: SCSI ID of the target.
11949 * @lun_id: LUN ID of the scsi device.
11950 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11952 * This function sends an abort command for every SCSI command
11953 * associated with the given virtual port pending on the ring
11954 * filtered by lpfc_sli_validate_fcp_iocb function.
11955 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
11956 * FCP iocbs associated with lun specified by tgt_id and lun_id
11958 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
11959 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11960 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
11961 * FCP iocbs associated with virtual port.
11962 * The pring used for SLI3 is sli3_ring[LPFC_FCP_RING], for SLI4
11963 * lpfc_sli4_calc_ring is used.
11964 * This function returns number of iocbs it failed to abort.
11965 * This function is called with no locks held.
11968 lpfc_sli_abort_iocb(struct lpfc_vport *vport, u16 tgt_id, u64 lun_id,
11969 lpfc_ctx_cmd abort_cmd)
11971 struct lpfc_hba *phba = vport->phba;
11972 struct lpfc_sli_ring *pring = NULL;
11973 struct lpfc_iocbq *iocbq;
11974 int errcnt = 0, ret_val = 0;
11975 unsigned long iflags;
11977 void *fcp_cmpl = NULL;
11979 /* all I/Os are in process of being flushed */
11980 if (phba->hba_flag & HBA_IOQ_FLUSH)
11983 for (i = 1; i <= phba->sli.last_iotag; i++) {
11984 iocbq = phba->sli.iocbq_lookup[i];
11986 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11990 spin_lock_irqsave(&phba->hbalock, iflags);
11991 if (phba->sli_rev == LPFC_SLI_REV3) {
11992 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
11993 fcp_cmpl = lpfc_sli_abort_fcp_cmpl;
11994 } else if (phba->sli_rev == LPFC_SLI_REV4) {
11995 pring = lpfc_sli4_calc_ring(phba, iocbq);
11996 fcp_cmpl = lpfc_sli4_abort_fcp_cmpl;
11998 ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocbq,
12000 spin_unlock_irqrestore(&phba->hbalock, iflags);
12001 if (ret_val != IOCB_SUCCESS)
12009 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
12010 * @vport: Pointer to virtual port.
12011 * @pring: Pointer to driver SLI ring object.
12012 * @tgt_id: SCSI ID of the target.
12013 * @lun_id: LUN ID of the scsi device.
12014 * @cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
12016 * This function sends an abort command for every SCSI command
12017 * associated with the given virtual port pending on the ring
12018 * filtered by lpfc_sli_validate_fcp_iocb function.
12019 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
12020 * FCP iocbs associated with lun specified by tgt_id and lun_id
12022 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
12023 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
12024 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
12025 * FCP iocbs associated with virtual port.
12026 * This function returns number of iocbs it aborted .
12027 * This function is called with no locks held right after a taskmgmt
12031 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
12032 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
12034 struct lpfc_hba *phba = vport->phba;
12035 struct lpfc_io_buf *lpfc_cmd;
12036 struct lpfc_iocbq *abtsiocbq;
12037 struct lpfc_nodelist *ndlp;
12038 struct lpfc_iocbq *iocbq;
12040 int sum, i, ret_val;
12041 unsigned long iflags;
12042 struct lpfc_sli_ring *pring_s4 = NULL;
12044 spin_lock_irqsave(&phba->hbalock, iflags);
12046 /* all I/Os are in process of being flushed */
12047 if (phba->hba_flag & HBA_IOQ_FLUSH) {
12048 spin_unlock_irqrestore(&phba->hbalock, iflags);
12053 for (i = 1; i <= phba->sli.last_iotag; i++) {
12054 iocbq = phba->sli.iocbq_lookup[i];
12056 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
12060 /* Guard against IO completion being called at same time */
12061 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
12062 spin_lock(&lpfc_cmd->buf_lock);
12064 if (!lpfc_cmd->pCmd) {
12065 spin_unlock(&lpfc_cmd->buf_lock);
12069 if (phba->sli_rev == LPFC_SLI_REV4) {
12071 phba->sli4_hba.hdwq[iocbq->hba_wqidx].io_wq->pring;
12073 spin_unlock(&lpfc_cmd->buf_lock);
12076 /* Note: both hbalock and ring_lock must be set here */
12077 spin_lock(&pring_s4->ring_lock);
12081 * If the iocbq is already being aborted, don't take a second
12082 * action, but do count it.
12084 if ((iocbq->iocb_flag & LPFC_DRIVER_ABORTED) ||
12085 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ)) {
12086 if (phba->sli_rev == LPFC_SLI_REV4)
12087 spin_unlock(&pring_s4->ring_lock);
12088 spin_unlock(&lpfc_cmd->buf_lock);
12092 /* issue ABTS for this IOCB based on iotag */
12093 abtsiocbq = __lpfc_sli_get_iocbq(phba);
12095 if (phba->sli_rev == LPFC_SLI_REV4)
12096 spin_unlock(&pring_s4->ring_lock);
12097 spin_unlock(&lpfc_cmd->buf_lock);
12101 icmd = &iocbq->iocb;
12102 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
12103 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
12104 if (phba->sli_rev == LPFC_SLI_REV4)
12105 abtsiocbq->iocb.un.acxri.abortIoTag =
12106 iocbq->sli4_xritag;
12108 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
12109 abtsiocbq->iocb.ulpLe = 1;
12110 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
12111 abtsiocbq->vport = vport;
12113 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
12114 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
12115 if (iocbq->iocb_flag & LPFC_IO_FCP)
12116 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
12117 if (iocbq->iocb_flag & LPFC_IO_FOF)
12118 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
12120 ndlp = lpfc_cmd->rdata->pnode;
12122 if (lpfc_is_link_up(phba) &&
12123 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
12124 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
12126 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
12128 /* Setup callback routine and issue the command. */
12129 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
12132 * Indicate the IO is being aborted by the driver and set
12133 * the caller's flag into the aborted IO.
12135 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
12137 if (phba->sli_rev == LPFC_SLI_REV4) {
12138 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
12140 spin_unlock(&pring_s4->ring_lock);
12142 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
12146 spin_unlock(&lpfc_cmd->buf_lock);
12148 if (ret_val == IOCB_ERROR)
12149 __lpfc_sli_release_iocbq(phba, abtsiocbq);
12153 spin_unlock_irqrestore(&phba->hbalock, iflags);
12158 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
12159 * @phba: Pointer to HBA context object.
12160 * @cmdiocbq: Pointer to command iocb.
12161 * @rspiocbq: Pointer to response iocb.
12163 * This function is the completion handler for iocbs issued using
12164 * lpfc_sli_issue_iocb_wait function. This function is called by the
12165 * ring event handler function without any lock held. This function
12166 * can be called from both worker thread context and interrupt
12167 * context. This function also can be called from other thread which
12168 * cleans up the SLI layer objects.
12169 * This function copy the contents of the response iocb to the
12170 * response iocb memory object provided by the caller of
12171 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
12172 * sleeps for the iocb completion.
12175 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
12176 struct lpfc_iocbq *cmdiocbq,
12177 struct lpfc_iocbq *rspiocbq)
12179 wait_queue_head_t *pdone_q;
12180 unsigned long iflags;
12181 struct lpfc_io_buf *lpfc_cmd;
12183 spin_lock_irqsave(&phba->hbalock, iflags);
12184 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
12187 * A time out has occurred for the iocb. If a time out
12188 * completion handler has been supplied, call it. Otherwise,
12189 * just free the iocbq.
12192 spin_unlock_irqrestore(&phba->hbalock, iflags);
12193 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
12194 cmdiocbq->wait_iocb_cmpl = NULL;
12195 if (cmdiocbq->iocb_cmpl)
12196 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
12198 lpfc_sli_release_iocbq(phba, cmdiocbq);
12202 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
12203 if (cmdiocbq->context2 && rspiocbq)
12204 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
12205 &rspiocbq->iocb, sizeof(IOCB_t));
12207 /* Set the exchange busy flag for task management commands */
12208 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
12209 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
12210 lpfc_cmd = container_of(cmdiocbq, struct lpfc_io_buf,
12212 if (rspiocbq && (rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY))
12213 lpfc_cmd->flags |= LPFC_SBUF_XBUSY;
12215 lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
12218 pdone_q = cmdiocbq->context_un.wait_queue;
12221 spin_unlock_irqrestore(&phba->hbalock, iflags);
12226 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
12227 * @phba: Pointer to HBA context object..
12228 * @piocbq: Pointer to command iocb.
12229 * @flag: Flag to test.
12231 * This routine grabs the hbalock and then test the iocb_flag to
12232 * see if the passed in flag is set.
12234 * 1 if flag is set.
12235 * 0 if flag is not set.
12238 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
12239 struct lpfc_iocbq *piocbq, uint32_t flag)
12241 unsigned long iflags;
12244 spin_lock_irqsave(&phba->hbalock, iflags);
12245 ret = piocbq->iocb_flag & flag;
12246 spin_unlock_irqrestore(&phba->hbalock, iflags);
12252 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
12253 * @phba: Pointer to HBA context object..
12254 * @ring_number: Ring number
12255 * @piocb: Pointer to command iocb.
12256 * @prspiocbq: Pointer to response iocb.
12257 * @timeout: Timeout in number of seconds.
12259 * This function issues the iocb to firmware and waits for the
12260 * iocb to complete. The iocb_cmpl field of the shall be used
12261 * to handle iocbs which time out. If the field is NULL, the
12262 * function shall free the iocbq structure. If more clean up is
12263 * needed, the caller is expected to provide a completion function
12264 * that will provide the needed clean up. If the iocb command is
12265 * not completed within timeout seconds, the function will either
12266 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
12267 * completion function set in the iocb_cmpl field and then return
12268 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
12269 * resources if this function returns IOCB_TIMEDOUT.
12270 * The function waits for the iocb completion using an
12271 * non-interruptible wait.
12272 * This function will sleep while waiting for iocb completion.
12273 * So, this function should not be called from any context which
12274 * does not allow sleeping. Due to the same reason, this function
12275 * cannot be called with interrupt disabled.
12276 * This function assumes that the iocb completions occur while
12277 * this function sleep. So, this function cannot be called from
12278 * the thread which process iocb completion for this ring.
12279 * This function clears the iocb_flag of the iocb object before
12280 * issuing the iocb and the iocb completion handler sets this
12281 * flag and wakes this thread when the iocb completes.
12282 * The contents of the response iocb will be copied to prspiocbq
12283 * by the completion handler when the command completes.
12284 * This function returns IOCB_SUCCESS when success.
12285 * This function is called with no lock held.
12288 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
12289 uint32_t ring_number,
12290 struct lpfc_iocbq *piocb,
12291 struct lpfc_iocbq *prspiocbq,
12294 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
12295 long timeleft, timeout_req = 0;
12296 int retval = IOCB_SUCCESS;
12298 struct lpfc_iocbq *iocb;
12300 int txcmplq_cnt = 0;
12301 struct lpfc_sli_ring *pring;
12302 unsigned long iflags;
12303 bool iocb_completed = true;
12305 if (phba->sli_rev >= LPFC_SLI_REV4)
12306 pring = lpfc_sli4_calc_ring(phba, piocb);
12308 pring = &phba->sli.sli3_ring[ring_number];
12310 * If the caller has provided a response iocbq buffer, then context2
12311 * is NULL or its an error.
12314 if (piocb->context2)
12316 piocb->context2 = prspiocbq;
12319 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
12320 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
12321 piocb->context_un.wait_queue = &done_q;
12322 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
12324 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
12325 if (lpfc_readl(phba->HCregaddr, &creg_val))
12327 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
12328 writel(creg_val, phba->HCregaddr);
12329 readl(phba->HCregaddr); /* flush */
12332 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
12333 SLI_IOCB_RET_IOCB);
12334 if (retval == IOCB_SUCCESS) {
12335 timeout_req = msecs_to_jiffies(timeout * 1000);
12336 timeleft = wait_event_timeout(done_q,
12337 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
12339 spin_lock_irqsave(&phba->hbalock, iflags);
12340 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
12343 * IOCB timed out. Inform the wake iocb wait
12344 * completion function and set local status
12347 iocb_completed = false;
12348 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
12350 spin_unlock_irqrestore(&phba->hbalock, iflags);
12351 if (iocb_completed) {
12352 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12353 "0331 IOCB wake signaled\n");
12354 /* Note: we are not indicating if the IOCB has a success
12355 * status or not - that's for the caller to check.
12356 * IOCB_SUCCESS means just that the command was sent and
12357 * completed. Not that it completed successfully.
12359 } else if (timeleft == 0) {
12360 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12361 "0338 IOCB wait timeout error - no "
12362 "wake response Data x%x\n", timeout);
12363 retval = IOCB_TIMEDOUT;
12365 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12366 "0330 IOCB wake NOT set, "
12368 timeout, (timeleft / jiffies));
12369 retval = IOCB_TIMEDOUT;
12371 } else if (retval == IOCB_BUSY) {
12372 if (phba->cfg_log_verbose & LOG_SLI) {
12373 list_for_each_entry(iocb, &pring->txq, list) {
12376 list_for_each_entry(iocb, &pring->txcmplq, list) {
12379 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12380 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
12381 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
12385 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12386 "0332 IOCB wait issue failed, Data x%x\n",
12388 retval = IOCB_ERROR;
12391 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
12392 if (lpfc_readl(phba->HCregaddr, &creg_val))
12394 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
12395 writel(creg_val, phba->HCregaddr);
12396 readl(phba->HCregaddr); /* flush */
12400 piocb->context2 = NULL;
12402 piocb->context_un.wait_queue = NULL;
12403 piocb->iocb_cmpl = NULL;
12408 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
12409 * @phba: Pointer to HBA context object.
12410 * @pmboxq: Pointer to driver mailbox object.
12411 * @timeout: Timeout in number of seconds.
12413 * This function issues the mailbox to firmware and waits for the
12414 * mailbox command to complete. If the mailbox command is not
12415 * completed within timeout seconds, it returns MBX_TIMEOUT.
12416 * The function waits for the mailbox completion using an
12417 * interruptible wait. If the thread is woken up due to a
12418 * signal, MBX_TIMEOUT error is returned to the caller. Caller
12419 * should not free the mailbox resources, if this function returns
12421 * This function will sleep while waiting for mailbox completion.
12422 * So, this function should not be called from any context which
12423 * does not allow sleeping. Due to the same reason, this function
12424 * cannot be called with interrupt disabled.
12425 * This function assumes that the mailbox completion occurs while
12426 * this function sleep. So, this function cannot be called from
12427 * the worker thread which processes mailbox completion.
12428 * This function is called in the context of HBA management
12430 * This function returns MBX_SUCCESS when successful.
12431 * This function is called with no lock held.
12434 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
12437 struct completion mbox_done;
12439 unsigned long flag;
12441 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
12442 /* setup wake call as IOCB callback */
12443 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
12445 /* setup context3 field to pass wait_queue pointer to wake function */
12446 init_completion(&mbox_done);
12447 pmboxq->context3 = &mbox_done;
12448 /* now issue the command */
12449 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
12450 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
12451 wait_for_completion_timeout(&mbox_done,
12452 msecs_to_jiffies(timeout * 1000));
12454 spin_lock_irqsave(&phba->hbalock, flag);
12455 pmboxq->context3 = NULL;
12457 * if LPFC_MBX_WAKE flag is set the mailbox is completed
12458 * else do not free the resources.
12460 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
12461 retval = MBX_SUCCESS;
12463 retval = MBX_TIMEOUT;
12464 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12466 spin_unlock_irqrestore(&phba->hbalock, flag);
12472 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
12473 * @phba: Pointer to HBA context.
12474 * @mbx_action: Mailbox shutdown options.
12476 * This function is called to shutdown the driver's mailbox sub-system.
12477 * It first marks the mailbox sub-system is in a block state to prevent
12478 * the asynchronous mailbox command from issued off the pending mailbox
12479 * command queue. If the mailbox command sub-system shutdown is due to
12480 * HBA error conditions such as EEH or ERATT, this routine shall invoke
12481 * the mailbox sub-system flush routine to forcefully bring down the
12482 * mailbox sub-system. Otherwise, if it is due to normal condition (such
12483 * as with offline or HBA function reset), this routine will wait for the
12484 * outstanding mailbox command to complete before invoking the mailbox
12485 * sub-system flush routine to gracefully bring down mailbox sub-system.
12488 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
12490 struct lpfc_sli *psli = &phba->sli;
12491 unsigned long timeout;
12493 if (mbx_action == LPFC_MBX_NO_WAIT) {
12494 /* delay 100ms for port state */
12496 lpfc_sli_mbox_sys_flush(phba);
12499 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
12501 /* Disable softirqs, including timers from obtaining phba->hbalock */
12502 local_bh_disable();
12504 spin_lock_irq(&phba->hbalock);
12505 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
12507 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
12508 /* Determine how long we might wait for the active mailbox
12509 * command to be gracefully completed by firmware.
12511 if (phba->sli.mbox_active)
12512 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
12513 phba->sli.mbox_active) *
12515 spin_unlock_irq(&phba->hbalock);
12517 /* Enable softirqs again, done with phba->hbalock */
12520 while (phba->sli.mbox_active) {
12521 /* Check active mailbox complete status every 2ms */
12523 if (time_after(jiffies, timeout))
12524 /* Timeout, let the mailbox flush routine to
12525 * forcefully release active mailbox command
12530 spin_unlock_irq(&phba->hbalock);
12532 /* Enable softirqs again, done with phba->hbalock */
12536 lpfc_sli_mbox_sys_flush(phba);
12540 * lpfc_sli_eratt_read - read sli-3 error attention events
12541 * @phba: Pointer to HBA context.
12543 * This function is called to read the SLI3 device error attention registers
12544 * for possible error attention events. The caller must hold the hostlock
12545 * with spin_lock_irq().
12547 * This function returns 1 when there is Error Attention in the Host Attention
12548 * Register and returns 0 otherwise.
12551 lpfc_sli_eratt_read(struct lpfc_hba *phba)
12555 /* Read chip Host Attention (HA) register */
12556 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12559 if (ha_copy & HA_ERATT) {
12560 /* Read host status register to retrieve error event */
12561 if (lpfc_sli_read_hs(phba))
12564 /* Check if there is a deferred error condition is active */
12565 if ((HS_FFER1 & phba->work_hs) &&
12566 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12567 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
12568 phba->hba_flag |= DEFER_ERATT;
12569 /* Clear all interrupt enable conditions */
12570 writel(0, phba->HCregaddr);
12571 readl(phba->HCregaddr);
12574 /* Set the driver HA work bitmap */
12575 phba->work_ha |= HA_ERATT;
12576 /* Indicate polling handles this ERATT */
12577 phba->hba_flag |= HBA_ERATT_HANDLED;
12583 /* Set the driver HS work bitmap */
12584 phba->work_hs |= UNPLUG_ERR;
12585 /* Set the driver HA work bitmap */
12586 phba->work_ha |= HA_ERATT;
12587 /* Indicate polling handles this ERATT */
12588 phba->hba_flag |= HBA_ERATT_HANDLED;
12593 * lpfc_sli4_eratt_read - read sli-4 error attention events
12594 * @phba: Pointer to HBA context.
12596 * This function is called to read the SLI4 device error attention registers
12597 * for possible error attention events. The caller must hold the hostlock
12598 * with spin_lock_irq().
12600 * This function returns 1 when there is Error Attention in the Host Attention
12601 * Register and returns 0 otherwise.
12604 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
12606 uint32_t uerr_sta_hi, uerr_sta_lo;
12607 uint32_t if_type, portsmphr;
12608 struct lpfc_register portstat_reg;
12611 * For now, use the SLI4 device internal unrecoverable error
12612 * registers for error attention. This can be changed later.
12614 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12616 case LPFC_SLI_INTF_IF_TYPE_0:
12617 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
12619 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
12621 phba->work_hs |= UNPLUG_ERR;
12622 phba->work_ha |= HA_ERATT;
12623 phba->hba_flag |= HBA_ERATT_HANDLED;
12626 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
12627 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
12628 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12629 "1423 HBA Unrecoverable error: "
12630 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
12631 "ue_mask_lo_reg=0x%x, "
12632 "ue_mask_hi_reg=0x%x\n",
12633 uerr_sta_lo, uerr_sta_hi,
12634 phba->sli4_hba.ue_mask_lo,
12635 phba->sli4_hba.ue_mask_hi);
12636 phba->work_status[0] = uerr_sta_lo;
12637 phba->work_status[1] = uerr_sta_hi;
12638 phba->work_ha |= HA_ERATT;
12639 phba->hba_flag |= HBA_ERATT_HANDLED;
12643 case LPFC_SLI_INTF_IF_TYPE_2:
12644 case LPFC_SLI_INTF_IF_TYPE_6:
12645 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
12646 &portstat_reg.word0) ||
12647 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
12649 phba->work_hs |= UNPLUG_ERR;
12650 phba->work_ha |= HA_ERATT;
12651 phba->hba_flag |= HBA_ERATT_HANDLED;
12654 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
12655 phba->work_status[0] =
12656 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
12657 phba->work_status[1] =
12658 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
12659 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12660 "2885 Port Status Event: "
12661 "port status reg 0x%x, "
12662 "port smphr reg 0x%x, "
12663 "error 1=0x%x, error 2=0x%x\n",
12664 portstat_reg.word0,
12666 phba->work_status[0],
12667 phba->work_status[1]);
12668 phba->work_ha |= HA_ERATT;
12669 phba->hba_flag |= HBA_ERATT_HANDLED;
12673 case LPFC_SLI_INTF_IF_TYPE_1:
12675 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12676 "2886 HBA Error Attention on unsupported "
12677 "if type %d.", if_type);
12685 * lpfc_sli_check_eratt - check error attention events
12686 * @phba: Pointer to HBA context.
12688 * This function is called from timer soft interrupt context to check HBA's
12689 * error attention register bit for error attention events.
12691 * This function returns 1 when there is Error Attention in the Host Attention
12692 * Register and returns 0 otherwise.
12695 lpfc_sli_check_eratt(struct lpfc_hba *phba)
12699 /* If somebody is waiting to handle an eratt, don't process it
12700 * here. The brdkill function will do this.
12702 if (phba->link_flag & LS_IGNORE_ERATT)
12705 /* Check if interrupt handler handles this ERATT */
12706 spin_lock_irq(&phba->hbalock);
12707 if (phba->hba_flag & HBA_ERATT_HANDLED) {
12708 /* Interrupt handler has handled ERATT */
12709 spin_unlock_irq(&phba->hbalock);
12714 * If there is deferred error attention, do not check for error
12717 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12718 spin_unlock_irq(&phba->hbalock);
12722 /* If PCI channel is offline, don't process it */
12723 if (unlikely(pci_channel_offline(phba->pcidev))) {
12724 spin_unlock_irq(&phba->hbalock);
12728 switch (phba->sli_rev) {
12729 case LPFC_SLI_REV2:
12730 case LPFC_SLI_REV3:
12731 /* Read chip Host Attention (HA) register */
12732 ha_copy = lpfc_sli_eratt_read(phba);
12734 case LPFC_SLI_REV4:
12735 /* Read device Uncoverable Error (UERR) registers */
12736 ha_copy = lpfc_sli4_eratt_read(phba);
12739 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12740 "0299 Invalid SLI revision (%d)\n",
12745 spin_unlock_irq(&phba->hbalock);
12751 * lpfc_intr_state_check - Check device state for interrupt handling
12752 * @phba: Pointer to HBA context.
12754 * This inline routine checks whether a device or its PCI slot is in a state
12755 * that the interrupt should be handled.
12757 * This function returns 0 if the device or the PCI slot is in a state that
12758 * interrupt should be handled, otherwise -EIO.
12761 lpfc_intr_state_check(struct lpfc_hba *phba)
12763 /* If the pci channel is offline, ignore all the interrupts */
12764 if (unlikely(pci_channel_offline(phba->pcidev)))
12767 /* Update device level interrupt statistics */
12768 phba->sli.slistat.sli_intr++;
12770 /* Ignore all interrupts during initialization. */
12771 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
12778 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
12779 * @irq: Interrupt number.
12780 * @dev_id: The device context pointer.
12782 * This function is directly called from the PCI layer as an interrupt
12783 * service routine when device with SLI-3 interface spec is enabled with
12784 * MSI-X multi-message interrupt mode and there are slow-path events in
12785 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
12786 * interrupt mode, this function is called as part of the device-level
12787 * interrupt handler. When the PCI slot is in error recovery or the HBA
12788 * is undergoing initialization, the interrupt handler will not process
12789 * the interrupt. The link attention and ELS ring attention events are
12790 * handled by the worker thread. The interrupt handler signals the worker
12791 * thread and returns for these events. This function is called without
12792 * any lock held. It gets the hbalock to access and update SLI data
12795 * This function returns IRQ_HANDLED when interrupt is handled else it
12796 * returns IRQ_NONE.
12799 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
12801 struct lpfc_hba *phba;
12802 uint32_t ha_copy, hc_copy;
12803 uint32_t work_ha_copy;
12804 unsigned long status;
12805 unsigned long iflag;
12808 MAILBOX_t *mbox, *pmbox;
12809 struct lpfc_vport *vport;
12810 struct lpfc_nodelist *ndlp;
12811 struct lpfc_dmabuf *mp;
12816 * Get the driver's phba structure from the dev_id and
12817 * assume the HBA is not interrupting.
12819 phba = (struct lpfc_hba *)dev_id;
12821 if (unlikely(!phba))
12825 * Stuff needs to be attented to when this function is invoked as an
12826 * individual interrupt handler in MSI-X multi-message interrupt mode
12828 if (phba->intr_type == MSIX) {
12829 /* Check device state for handling interrupt */
12830 if (lpfc_intr_state_check(phba))
12832 /* Need to read HA REG for slow-path events */
12833 spin_lock_irqsave(&phba->hbalock, iflag);
12834 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12836 /* If somebody is waiting to handle an eratt don't process it
12837 * here. The brdkill function will do this.
12839 if (phba->link_flag & LS_IGNORE_ERATT)
12840 ha_copy &= ~HA_ERATT;
12841 /* Check the need for handling ERATT in interrupt handler */
12842 if (ha_copy & HA_ERATT) {
12843 if (phba->hba_flag & HBA_ERATT_HANDLED)
12844 /* ERATT polling has handled ERATT */
12845 ha_copy &= ~HA_ERATT;
12847 /* Indicate interrupt handler handles ERATT */
12848 phba->hba_flag |= HBA_ERATT_HANDLED;
12852 * If there is deferred error attention, do not check for any
12855 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12856 spin_unlock_irqrestore(&phba->hbalock, iflag);
12860 /* Clear up only attention source related to slow-path */
12861 if (lpfc_readl(phba->HCregaddr, &hc_copy))
12864 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
12865 HC_LAINT_ENA | HC_ERINT_ENA),
12867 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
12869 writel(hc_copy, phba->HCregaddr);
12870 readl(phba->HAregaddr); /* flush */
12871 spin_unlock_irqrestore(&phba->hbalock, iflag);
12873 ha_copy = phba->ha_copy;
12875 work_ha_copy = ha_copy & phba->work_ha_mask;
12877 if (work_ha_copy) {
12878 if (work_ha_copy & HA_LATT) {
12879 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
12881 * Turn off Link Attention interrupts
12882 * until CLEAR_LA done
12884 spin_lock_irqsave(&phba->hbalock, iflag);
12885 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
12886 if (lpfc_readl(phba->HCregaddr, &control))
12888 control &= ~HC_LAINT_ENA;
12889 writel(control, phba->HCregaddr);
12890 readl(phba->HCregaddr); /* flush */
12891 spin_unlock_irqrestore(&phba->hbalock, iflag);
12894 work_ha_copy &= ~HA_LATT;
12897 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
12899 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
12900 * the only slow ring.
12902 status = (work_ha_copy &
12903 (HA_RXMASK << (4*LPFC_ELS_RING)));
12904 status >>= (4*LPFC_ELS_RING);
12905 if (status & HA_RXMASK) {
12906 spin_lock_irqsave(&phba->hbalock, iflag);
12907 if (lpfc_readl(phba->HCregaddr, &control))
12910 lpfc_debugfs_slow_ring_trc(phba,
12911 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
12913 (uint32_t)phba->sli.slistat.sli_intr);
12915 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
12916 lpfc_debugfs_slow_ring_trc(phba,
12917 "ISR Disable ring:"
12918 "pwork:x%x hawork:x%x wait:x%x",
12919 phba->work_ha, work_ha_copy,
12920 (uint32_t)((unsigned long)
12921 &phba->work_waitq));
12924 ~(HC_R0INT_ENA << LPFC_ELS_RING);
12925 writel(control, phba->HCregaddr);
12926 readl(phba->HCregaddr); /* flush */
12929 lpfc_debugfs_slow_ring_trc(phba,
12930 "ISR slow ring: pwork:"
12931 "x%x hawork:x%x wait:x%x",
12932 phba->work_ha, work_ha_copy,
12933 (uint32_t)((unsigned long)
12934 &phba->work_waitq));
12936 spin_unlock_irqrestore(&phba->hbalock, iflag);
12939 spin_lock_irqsave(&phba->hbalock, iflag);
12940 if (work_ha_copy & HA_ERATT) {
12941 if (lpfc_sli_read_hs(phba))
12944 * Check if there is a deferred error condition
12947 if ((HS_FFER1 & phba->work_hs) &&
12948 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12949 HS_FFER6 | HS_FFER7 | HS_FFER8) &
12951 phba->hba_flag |= DEFER_ERATT;
12952 /* Clear all interrupt enable conditions */
12953 writel(0, phba->HCregaddr);
12954 readl(phba->HCregaddr);
12958 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
12959 pmb = phba->sli.mbox_active;
12960 pmbox = &pmb->u.mb;
12962 vport = pmb->vport;
12964 /* First check out the status word */
12965 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
12966 if (pmbox->mbxOwner != OWN_HOST) {
12967 spin_unlock_irqrestore(&phba->hbalock, iflag);
12969 * Stray Mailbox Interrupt, mbxCommand <cmd>
12970 * mbxStatus <status>
12972 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12973 "(%d):0304 Stray Mailbox "
12974 "Interrupt mbxCommand x%x "
12976 (vport ? vport->vpi : 0),
12979 /* clear mailbox attention bit */
12980 work_ha_copy &= ~HA_MBATT;
12982 phba->sli.mbox_active = NULL;
12983 spin_unlock_irqrestore(&phba->hbalock, iflag);
12984 phba->last_completion_time = jiffies;
12985 del_timer(&phba->sli.mbox_tmo);
12986 if (pmb->mbox_cmpl) {
12987 lpfc_sli_pcimem_bcopy(mbox, pmbox,
12989 if (pmb->out_ext_byte_len &&
12991 lpfc_sli_pcimem_bcopy(
12994 pmb->out_ext_byte_len);
12996 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12997 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12999 lpfc_debugfs_disc_trc(vport,
13000 LPFC_DISC_TRC_MBOX_VPORT,
13001 "MBOX dflt rpi: : "
13002 "status:x%x rpi:x%x",
13003 (uint32_t)pmbox->mbxStatus,
13004 pmbox->un.varWords[0], 0);
13006 if (!pmbox->mbxStatus) {
13007 mp = (struct lpfc_dmabuf *)
13009 ndlp = (struct lpfc_nodelist *)
13012 /* Reg_LOGIN of dflt RPI was
13013 * successful. new lets get
13014 * rid of the RPI using the
13015 * same mbox buffer.
13017 lpfc_unreg_login(phba,
13019 pmbox->un.varWords[0],
13022 lpfc_mbx_cmpl_dflt_rpi;
13024 pmb->ctx_ndlp = ndlp;
13025 pmb->vport = vport;
13026 rc = lpfc_sli_issue_mbox(phba,
13029 if (rc != MBX_BUSY)
13030 lpfc_printf_log(phba,
13033 "0350 rc should have"
13034 "been MBX_BUSY\n");
13035 if (rc != MBX_NOT_FINISHED)
13036 goto send_current_mbox;
13040 &phba->pport->work_port_lock,
13042 phba->pport->work_port_events &=
13044 spin_unlock_irqrestore(
13045 &phba->pport->work_port_lock,
13048 /* Do NOT queue MBX_HEARTBEAT to the worker
13049 * thread for processing.
13051 if (pmbox->mbxCommand == MBX_HEARTBEAT) {
13052 /* Process mbox now */
13053 phba->sli.mbox_active = NULL;
13054 phba->sli.sli_flag &=
13055 ~LPFC_SLI_MBOX_ACTIVE;
13056 if (pmb->mbox_cmpl)
13057 pmb->mbox_cmpl(phba, pmb);
13059 /* Queue to worker thread to process */
13060 lpfc_mbox_cmpl_put(phba, pmb);
13064 spin_unlock_irqrestore(&phba->hbalock, iflag);
13066 if ((work_ha_copy & HA_MBATT) &&
13067 (phba->sli.mbox_active == NULL)) {
13069 /* Process next mailbox command if there is one */
13071 rc = lpfc_sli_issue_mbox(phba, NULL,
13073 } while (rc == MBX_NOT_FINISHED);
13074 if (rc != MBX_SUCCESS)
13075 lpfc_printf_log(phba, KERN_ERR,
13077 "0349 rc should be "
13081 spin_lock_irqsave(&phba->hbalock, iflag);
13082 phba->work_ha |= work_ha_copy;
13083 spin_unlock_irqrestore(&phba->hbalock, iflag);
13084 lpfc_worker_wake_up(phba);
13086 return IRQ_HANDLED;
13088 spin_unlock_irqrestore(&phba->hbalock, iflag);
13089 return IRQ_HANDLED;
13091 } /* lpfc_sli_sp_intr_handler */
13094 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
13095 * @irq: Interrupt number.
13096 * @dev_id: The device context pointer.
13098 * This function is directly called from the PCI layer as an interrupt
13099 * service routine when device with SLI-3 interface spec is enabled with
13100 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
13101 * ring event in the HBA. However, when the device is enabled with either
13102 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13103 * device-level interrupt handler. When the PCI slot is in error recovery
13104 * or the HBA is undergoing initialization, the interrupt handler will not
13105 * process the interrupt. The SCSI FCP fast-path ring event are handled in
13106 * the intrrupt context. This function is called without any lock held.
13107 * It gets the hbalock to access and update SLI data structures.
13109 * This function returns IRQ_HANDLED when interrupt is handled else it
13110 * returns IRQ_NONE.
13113 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
13115 struct lpfc_hba *phba;
13117 unsigned long status;
13118 unsigned long iflag;
13119 struct lpfc_sli_ring *pring;
13121 /* Get the driver's phba structure from the dev_id and
13122 * assume the HBA is not interrupting.
13124 phba = (struct lpfc_hba *) dev_id;
13126 if (unlikely(!phba))
13130 * Stuff needs to be attented to when this function is invoked as an
13131 * individual interrupt handler in MSI-X multi-message interrupt mode
13133 if (phba->intr_type == MSIX) {
13134 /* Check device state for handling interrupt */
13135 if (lpfc_intr_state_check(phba))
13137 /* Need to read HA REG for FCP ring and other ring events */
13138 if (lpfc_readl(phba->HAregaddr, &ha_copy))
13139 return IRQ_HANDLED;
13140 /* Clear up only attention source related to fast-path */
13141 spin_lock_irqsave(&phba->hbalock, iflag);
13143 * If there is deferred error attention, do not check for
13146 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
13147 spin_unlock_irqrestore(&phba->hbalock, iflag);
13150 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
13152 readl(phba->HAregaddr); /* flush */
13153 spin_unlock_irqrestore(&phba->hbalock, iflag);
13155 ha_copy = phba->ha_copy;
13158 * Process all events on FCP ring. Take the optimized path for FCP IO.
13160 ha_copy &= ~(phba->work_ha_mask);
13162 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
13163 status >>= (4*LPFC_FCP_RING);
13164 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
13165 if (status & HA_RXMASK)
13166 lpfc_sli_handle_fast_ring_event(phba, pring, status);
13168 if (phba->cfg_multi_ring_support == 2) {
13170 * Process all events on extra ring. Take the optimized path
13171 * for extra ring IO.
13173 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
13174 status >>= (4*LPFC_EXTRA_RING);
13175 if (status & HA_RXMASK) {
13176 lpfc_sli_handle_fast_ring_event(phba,
13177 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
13181 return IRQ_HANDLED;
13182 } /* lpfc_sli_fp_intr_handler */
13185 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
13186 * @irq: Interrupt number.
13187 * @dev_id: The device context pointer.
13189 * This function is the HBA device-level interrupt handler to device with
13190 * SLI-3 interface spec, called from the PCI layer when either MSI or
13191 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
13192 * requires driver attention. This function invokes the slow-path interrupt
13193 * attention handling function and fast-path interrupt attention handling
13194 * function in turn to process the relevant HBA attention events. This
13195 * function is called without any lock held. It gets the hbalock to access
13196 * and update SLI data structures.
13198 * This function returns IRQ_HANDLED when interrupt is handled, else it
13199 * returns IRQ_NONE.
13202 lpfc_sli_intr_handler(int irq, void *dev_id)
13204 struct lpfc_hba *phba;
13205 irqreturn_t sp_irq_rc, fp_irq_rc;
13206 unsigned long status1, status2;
13210 * Get the driver's phba structure from the dev_id and
13211 * assume the HBA is not interrupting.
13213 phba = (struct lpfc_hba *) dev_id;
13215 if (unlikely(!phba))
13218 /* Check device state for handling interrupt */
13219 if (lpfc_intr_state_check(phba))
13222 spin_lock(&phba->hbalock);
13223 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
13224 spin_unlock(&phba->hbalock);
13225 return IRQ_HANDLED;
13228 if (unlikely(!phba->ha_copy)) {
13229 spin_unlock(&phba->hbalock);
13231 } else if (phba->ha_copy & HA_ERATT) {
13232 if (phba->hba_flag & HBA_ERATT_HANDLED)
13233 /* ERATT polling has handled ERATT */
13234 phba->ha_copy &= ~HA_ERATT;
13236 /* Indicate interrupt handler handles ERATT */
13237 phba->hba_flag |= HBA_ERATT_HANDLED;
13241 * If there is deferred error attention, do not check for any interrupt.
13243 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
13244 spin_unlock(&phba->hbalock);
13248 /* Clear attention sources except link and error attentions */
13249 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
13250 spin_unlock(&phba->hbalock);
13251 return IRQ_HANDLED;
13253 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
13254 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
13256 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
13257 writel(hc_copy, phba->HCregaddr);
13258 readl(phba->HAregaddr); /* flush */
13259 spin_unlock(&phba->hbalock);
13262 * Invokes slow-path host attention interrupt handling as appropriate.
13265 /* status of events with mailbox and link attention */
13266 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
13268 /* status of events with ELS ring */
13269 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
13270 status2 >>= (4*LPFC_ELS_RING);
13272 if (status1 || (status2 & HA_RXMASK))
13273 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
13275 sp_irq_rc = IRQ_NONE;
13278 * Invoke fast-path host attention interrupt handling as appropriate.
13281 /* status of events with FCP ring */
13282 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
13283 status1 >>= (4*LPFC_FCP_RING);
13285 /* status of events with extra ring */
13286 if (phba->cfg_multi_ring_support == 2) {
13287 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
13288 status2 >>= (4*LPFC_EXTRA_RING);
13292 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
13293 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
13295 fp_irq_rc = IRQ_NONE;
13297 /* Return device-level interrupt handling status */
13298 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
13299 } /* lpfc_sli_intr_handler */
13302 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
13303 * @phba: pointer to lpfc hba data structure.
13305 * This routine is invoked by the worker thread to process all the pending
13306 * SLI4 els abort xri events.
13308 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
13310 struct lpfc_cq_event *cq_event;
13311 unsigned long iflags;
13313 /* First, declare the els xri abort event has been handled */
13314 spin_lock_irqsave(&phba->hbalock, iflags);
13315 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
13316 spin_unlock_irqrestore(&phba->hbalock, iflags);
13318 /* Now, handle all the els xri abort events */
13319 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
13320 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
13321 /* Get the first event from the head of the event queue */
13322 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
13323 cq_event, struct lpfc_cq_event, list);
13324 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock,
13326 /* Notify aborted XRI for ELS work queue */
13327 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
13329 /* Free the event processed back to the free pool */
13330 lpfc_sli4_cq_event_release(phba, cq_event);
13331 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock,
13334 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
13338 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
13339 * @phba: pointer to lpfc hba data structure
13340 * @pIocbIn: pointer to the rspiocbq
13341 * @pIocbOut: pointer to the cmdiocbq
13342 * @wcqe: pointer to the complete wcqe
13344 * This routine transfers the fields of a command iocbq to a response iocbq
13345 * by copying all the IOCB fields from command iocbq and transferring the
13346 * completion status information from the complete wcqe.
13349 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
13350 struct lpfc_iocbq *pIocbIn,
13351 struct lpfc_iocbq *pIocbOut,
13352 struct lpfc_wcqe_complete *wcqe)
13355 unsigned long iflags;
13356 uint32_t status, max_response;
13357 struct lpfc_dmabuf *dmabuf;
13358 struct ulp_bde64 *bpl, bde;
13359 size_t offset = offsetof(struct lpfc_iocbq, iocb);
13361 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
13362 sizeof(struct lpfc_iocbq) - offset);
13363 /* Map WCQE parameters into irspiocb parameters */
13364 status = bf_get(lpfc_wcqe_c_status, wcqe);
13365 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
13366 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
13367 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
13368 pIocbIn->iocb.un.fcpi.fcpi_parm =
13369 pIocbOut->iocb.un.fcpi.fcpi_parm -
13370 wcqe->total_data_placed;
13372 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
13374 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
13375 switch (pIocbOut->iocb.ulpCommand) {
13376 case CMD_ELS_REQUEST64_CR:
13377 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
13378 bpl = (struct ulp_bde64 *)dmabuf->virt;
13379 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
13380 max_response = bde.tus.f.bdeSize;
13382 case CMD_GEN_REQUEST64_CR:
13384 if (!pIocbOut->context3)
13386 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
13387 sizeof(struct ulp_bde64);
13388 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
13389 bpl = (struct ulp_bde64 *)dmabuf->virt;
13390 for (i = 0; i < numBdes; i++) {
13391 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
13392 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
13393 max_response += bde.tus.f.bdeSize;
13397 max_response = wcqe->total_data_placed;
13400 if (max_response < wcqe->total_data_placed)
13401 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
13403 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
13404 wcqe->total_data_placed;
13407 /* Convert BG errors for completion status */
13408 if (status == CQE_STATUS_DI_ERROR) {
13409 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
13411 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
13412 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
13414 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
13416 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
13417 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
13418 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13419 BGS_GUARD_ERR_MASK;
13420 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
13421 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13422 BGS_APPTAG_ERR_MASK;
13423 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
13424 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13425 BGS_REFTAG_ERR_MASK;
13427 /* Check to see if there was any good data before the error */
13428 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
13429 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13430 BGS_HI_WATER_MARK_PRESENT_MASK;
13431 pIocbIn->iocb.unsli3.sli3_bg.bghm =
13432 wcqe->total_data_placed;
13436 * Set ALL the error bits to indicate we don't know what
13437 * type of error it is.
13439 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
13440 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13441 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
13442 BGS_GUARD_ERR_MASK);
13445 /* Pick up HBA exchange busy condition */
13446 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
13447 spin_lock_irqsave(&phba->hbalock, iflags);
13448 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
13449 spin_unlock_irqrestore(&phba->hbalock, iflags);
13454 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
13455 * @phba: Pointer to HBA context object.
13456 * @irspiocbq: Pointer to work-queue completion queue entry.
13458 * This routine handles an ELS work-queue completion event and construct
13459 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
13460 * discovery engine to handle.
13462 * Return: Pointer to the receive IOCBQ, NULL otherwise.
13464 static struct lpfc_iocbq *
13465 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
13466 struct lpfc_iocbq *irspiocbq)
13468 struct lpfc_sli_ring *pring;
13469 struct lpfc_iocbq *cmdiocbq;
13470 struct lpfc_wcqe_complete *wcqe;
13471 unsigned long iflags;
13473 pring = lpfc_phba_elsring(phba);
13474 if (unlikely(!pring))
13477 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
13478 pring->stats.iocb_event++;
13479 /* Look up the ELS command IOCB and create pseudo response IOCB */
13480 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13481 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13482 if (unlikely(!cmdiocbq)) {
13483 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13484 "0386 ELS complete with no corresponding "
13485 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
13486 wcqe->word0, wcqe->total_data_placed,
13487 wcqe->parameter, wcqe->word3);
13488 lpfc_sli_release_iocbq(phba, irspiocbq);
13492 spin_lock_irqsave(&pring->ring_lock, iflags);
13493 /* Put the iocb back on the txcmplq */
13494 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
13495 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13497 /* Fake the irspiocbq and copy necessary response information */
13498 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
13503 inline struct lpfc_cq_event *
13504 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
13506 struct lpfc_cq_event *cq_event;
13508 /* Allocate a new internal CQ_EVENT entry */
13509 cq_event = lpfc_sli4_cq_event_alloc(phba);
13511 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13512 "0602 Failed to alloc CQ_EVENT entry\n");
13516 /* Move the CQE into the event */
13517 memcpy(&cq_event->cqe, entry, size);
13522 * lpfc_sli4_sp_handle_async_event - Handle an asynchronous event
13523 * @phba: Pointer to HBA context object.
13524 * @mcqe: Pointer to mailbox completion queue entry.
13526 * This routine process a mailbox completion queue entry with asynchronous
13529 * Return: true if work posted to worker thread, otherwise false.
13532 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13534 struct lpfc_cq_event *cq_event;
13535 unsigned long iflags;
13537 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13538 "0392 Async Event: word0:x%x, word1:x%x, "
13539 "word2:x%x, word3:x%x\n", mcqe->word0,
13540 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
13542 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
13546 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
13547 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
13548 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
13550 /* Set the async event flag */
13551 spin_lock_irqsave(&phba->hbalock, iflags);
13552 phba->hba_flag |= ASYNC_EVENT;
13553 spin_unlock_irqrestore(&phba->hbalock, iflags);
13559 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
13560 * @phba: Pointer to HBA context object.
13561 * @mcqe: Pointer to mailbox completion queue entry.
13563 * This routine process a mailbox completion queue entry with mailbox
13564 * completion event.
13566 * Return: true if work posted to worker thread, otherwise false.
13569 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13571 uint32_t mcqe_status;
13572 MAILBOX_t *mbox, *pmbox;
13573 struct lpfc_mqe *mqe;
13574 struct lpfc_vport *vport;
13575 struct lpfc_nodelist *ndlp;
13576 struct lpfc_dmabuf *mp;
13577 unsigned long iflags;
13579 bool workposted = false;
13582 /* If not a mailbox complete MCQE, out by checking mailbox consume */
13583 if (!bf_get(lpfc_trailer_completed, mcqe))
13584 goto out_no_mqe_complete;
13586 /* Get the reference to the active mbox command */
13587 spin_lock_irqsave(&phba->hbalock, iflags);
13588 pmb = phba->sli.mbox_active;
13589 if (unlikely(!pmb)) {
13590 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13591 "1832 No pending MBOX command to handle\n");
13592 spin_unlock_irqrestore(&phba->hbalock, iflags);
13593 goto out_no_mqe_complete;
13595 spin_unlock_irqrestore(&phba->hbalock, iflags);
13597 pmbox = (MAILBOX_t *)&pmb->u.mqe;
13599 vport = pmb->vport;
13601 /* Reset heartbeat timer */
13602 phba->last_completion_time = jiffies;
13603 del_timer(&phba->sli.mbox_tmo);
13605 /* Move mbox data to caller's mailbox region, do endian swapping */
13606 if (pmb->mbox_cmpl && mbox)
13607 lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
13610 * For mcqe errors, conditionally move a modified error code to
13611 * the mbox so that the error will not be missed.
13613 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
13614 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
13615 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
13616 bf_set(lpfc_mqe_status, mqe,
13617 (LPFC_MBX_ERROR_RANGE | mcqe_status));
13619 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
13620 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
13621 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
13622 "MBOX dflt rpi: status:x%x rpi:x%x",
13624 pmbox->un.varWords[0], 0);
13625 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
13626 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
13627 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
13628 /* Reg_LOGIN of dflt RPI was successful. Now lets get
13629 * RID of the PPI using the same mbox buffer.
13631 lpfc_unreg_login(phba, vport->vpi,
13632 pmbox->un.varWords[0], pmb);
13633 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
13636 /* No reference taken here. This is a default
13637 * RPI reg/immediate unreg cycle. The reference was
13638 * taken in the reg rpi path and is released when
13639 * this mailbox completes.
13641 pmb->ctx_ndlp = ndlp;
13642 pmb->vport = vport;
13643 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
13644 if (rc != MBX_BUSY)
13645 lpfc_printf_log(phba, KERN_ERR,
13648 "have been MBX_BUSY\n");
13649 if (rc != MBX_NOT_FINISHED)
13650 goto send_current_mbox;
13653 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
13654 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
13655 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
13657 /* Do NOT queue MBX_HEARTBEAT to the worker thread for processing. */
13658 if (pmbox->mbxCommand == MBX_HEARTBEAT) {
13659 spin_lock_irqsave(&phba->hbalock, iflags);
13660 /* Release the mailbox command posting token */
13661 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13662 phba->sli.mbox_active = NULL;
13663 if (bf_get(lpfc_trailer_consumed, mcqe))
13664 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13665 spin_unlock_irqrestore(&phba->hbalock, iflags);
13667 /* Post the next mbox command, if there is one */
13668 lpfc_sli4_post_async_mbox(phba);
13670 /* Process cmpl now */
13671 if (pmb->mbox_cmpl)
13672 pmb->mbox_cmpl(phba, pmb);
13676 /* There is mailbox completion work to queue to the worker thread */
13677 spin_lock_irqsave(&phba->hbalock, iflags);
13678 __lpfc_mbox_cmpl_put(phba, pmb);
13679 phba->work_ha |= HA_MBATT;
13680 spin_unlock_irqrestore(&phba->hbalock, iflags);
13684 spin_lock_irqsave(&phba->hbalock, iflags);
13685 /* Release the mailbox command posting token */
13686 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13687 /* Setting active mailbox pointer need to be in sync to flag clear */
13688 phba->sli.mbox_active = NULL;
13689 if (bf_get(lpfc_trailer_consumed, mcqe))
13690 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13691 spin_unlock_irqrestore(&phba->hbalock, iflags);
13692 /* Wake up worker thread to post the next pending mailbox command */
13693 lpfc_worker_wake_up(phba);
13696 out_no_mqe_complete:
13697 spin_lock_irqsave(&phba->hbalock, iflags);
13698 if (bf_get(lpfc_trailer_consumed, mcqe))
13699 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13700 spin_unlock_irqrestore(&phba->hbalock, iflags);
13705 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
13706 * @phba: Pointer to HBA context object.
13707 * @cq: Pointer to associated CQ
13708 * @cqe: Pointer to mailbox completion queue entry.
13710 * This routine process a mailbox completion queue entry, it invokes the
13711 * proper mailbox complete handling or asynchronous event handling routine
13712 * according to the MCQE's async bit.
13714 * Return: true if work posted to worker thread, otherwise false.
13717 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13718 struct lpfc_cqe *cqe)
13720 struct lpfc_mcqe mcqe;
13725 /* Copy the mailbox MCQE and convert endian order as needed */
13726 lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
13728 /* Invoke the proper event handling routine */
13729 if (!bf_get(lpfc_trailer_async, &mcqe))
13730 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
13732 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
13737 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
13738 * @phba: Pointer to HBA context object.
13739 * @cq: Pointer to associated CQ
13740 * @wcqe: Pointer to work-queue completion queue entry.
13742 * This routine handles an ELS work-queue completion event.
13744 * Return: true if work posted to worker thread, otherwise false.
13747 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13748 struct lpfc_wcqe_complete *wcqe)
13750 struct lpfc_iocbq *irspiocbq;
13751 unsigned long iflags;
13752 struct lpfc_sli_ring *pring = cq->pring;
13754 int txcmplq_cnt = 0;
13756 /* Check for response status */
13757 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13758 /* Log the error status */
13759 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13760 "0357 ELS CQE error: status=x%x: "
13761 "CQE: %08x %08x %08x %08x\n",
13762 bf_get(lpfc_wcqe_c_status, wcqe),
13763 wcqe->word0, wcqe->total_data_placed,
13764 wcqe->parameter, wcqe->word3);
13767 /* Get an irspiocbq for later ELS response processing use */
13768 irspiocbq = lpfc_sli_get_iocbq(phba);
13770 if (!list_empty(&pring->txq))
13772 if (!list_empty(&pring->txcmplq))
13774 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13775 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
13776 "els_txcmplq_cnt=%d\n",
13777 txq_cnt, phba->iocb_cnt,
13782 /* Save off the slow-path queue event for work thread to process */
13783 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
13784 spin_lock_irqsave(&phba->hbalock, iflags);
13785 list_add_tail(&irspiocbq->cq_event.list,
13786 &phba->sli4_hba.sp_queue_event);
13787 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13788 spin_unlock_irqrestore(&phba->hbalock, iflags);
13794 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
13795 * @phba: Pointer to HBA context object.
13796 * @wcqe: Pointer to work-queue completion queue entry.
13798 * This routine handles slow-path WQ entry consumed event by invoking the
13799 * proper WQ release routine to the slow-path WQ.
13802 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
13803 struct lpfc_wcqe_release *wcqe)
13805 /* sanity check on queue memory */
13806 if (unlikely(!phba->sli4_hba.els_wq))
13808 /* Check for the slow-path ELS work queue */
13809 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
13810 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
13811 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13813 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13814 "2579 Slow-path wqe consume event carries "
13815 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
13816 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
13817 phba->sli4_hba.els_wq->queue_id);
13821 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
13822 * @phba: Pointer to HBA context object.
13823 * @cq: Pointer to a WQ completion queue.
13824 * @wcqe: Pointer to work-queue completion queue entry.
13826 * This routine handles an XRI abort event.
13828 * Return: true if work posted to worker thread, otherwise false.
13831 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
13832 struct lpfc_queue *cq,
13833 struct sli4_wcqe_xri_aborted *wcqe)
13835 bool workposted = false;
13836 struct lpfc_cq_event *cq_event;
13837 unsigned long iflags;
13839 switch (cq->subtype) {
13841 lpfc_sli4_io_xri_aborted(phba, wcqe, cq->hdwq);
13842 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13843 /* Notify aborted XRI for NVME work queue */
13844 if (phba->nvmet_support)
13845 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
13847 workposted = false;
13849 case LPFC_NVME_LS: /* NVME LS uses ELS resources */
13851 cq_event = lpfc_cq_event_setup(phba, wcqe, sizeof(*wcqe));
13853 workposted = false;
13856 cq_event->hdwq = cq->hdwq;
13857 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock,
13859 list_add_tail(&cq_event->list,
13860 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
13861 /* Set the els xri abort event flag */
13862 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
13863 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock,
13868 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13869 "0603 Invalid CQ subtype %d: "
13870 "%08x %08x %08x %08x\n",
13871 cq->subtype, wcqe->word0, wcqe->parameter,
13872 wcqe->word2, wcqe->word3);
13873 workposted = false;
13879 #define FC_RCTL_MDS_DIAGS 0xF4
13882 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
13883 * @phba: Pointer to HBA context object.
13884 * @rcqe: Pointer to receive-queue completion queue entry.
13886 * This routine process a receive-queue completion queue entry.
13888 * Return: true if work posted to worker thread, otherwise false.
13891 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
13893 bool workposted = false;
13894 struct fc_frame_header *fc_hdr;
13895 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
13896 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
13897 struct lpfc_nvmet_tgtport *tgtp;
13898 struct hbq_dmabuf *dma_buf;
13899 uint32_t status, rq_id;
13900 unsigned long iflags;
13902 /* sanity check on queue memory */
13903 if (unlikely(!hrq) || unlikely(!drq))
13906 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13907 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13909 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13910 if (rq_id != hrq->queue_id)
13913 status = bf_get(lpfc_rcqe_status, rcqe);
13915 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13916 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13917 "2537 Receive Frame Truncated!!\n");
13919 case FC_STATUS_RQ_SUCCESS:
13920 spin_lock_irqsave(&phba->hbalock, iflags);
13921 lpfc_sli4_rq_release(hrq, drq);
13922 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
13924 hrq->RQ_no_buf_found++;
13925 spin_unlock_irqrestore(&phba->hbalock, iflags);
13929 hrq->RQ_buf_posted--;
13930 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
13932 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13934 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
13935 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
13936 spin_unlock_irqrestore(&phba->hbalock, iflags);
13937 /* Handle MDS Loopback frames */
13938 if (!(phba->pport->load_flag & FC_UNLOADING))
13939 lpfc_sli4_handle_mds_loopback(phba->pport,
13942 lpfc_in_buf_free(phba, &dma_buf->dbuf);
13946 /* save off the frame for the work thread to process */
13947 list_add_tail(&dma_buf->cq_event.list,
13948 &phba->sli4_hba.sp_queue_event);
13949 /* Frame received */
13950 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13951 spin_unlock_irqrestore(&phba->hbalock, iflags);
13954 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13955 if (phba->nvmet_support) {
13956 tgtp = phba->targetport->private;
13957 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13958 "6402 RQE Error x%x, posted %d err_cnt "
13960 status, hrq->RQ_buf_posted,
13961 hrq->RQ_no_posted_buf,
13962 atomic_read(&tgtp->rcv_fcp_cmd_in),
13963 atomic_read(&tgtp->rcv_fcp_cmd_out),
13964 atomic_read(&tgtp->xmt_fcp_release));
13968 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13969 hrq->RQ_no_posted_buf++;
13970 /* Post more buffers if possible */
13971 spin_lock_irqsave(&phba->hbalock, iflags);
13972 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
13973 spin_unlock_irqrestore(&phba->hbalock, iflags);
13982 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
13983 * @phba: Pointer to HBA context object.
13984 * @cq: Pointer to the completion queue.
13985 * @cqe: Pointer to a completion queue entry.
13987 * This routine process a slow-path work-queue or receive queue completion queue
13990 * Return: true if work posted to worker thread, otherwise false.
13993 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13994 struct lpfc_cqe *cqe)
13996 struct lpfc_cqe cqevt;
13997 bool workposted = false;
13999 /* Copy the work queue CQE and convert endian order if needed */
14000 lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
14002 /* Check and process for different type of WCQE and dispatch */
14003 switch (bf_get(lpfc_cqe_code, &cqevt)) {
14004 case CQE_CODE_COMPL_WQE:
14005 /* Process the WQ/RQ complete event */
14006 phba->last_completion_time = jiffies;
14007 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
14008 (struct lpfc_wcqe_complete *)&cqevt);
14010 case CQE_CODE_RELEASE_WQE:
14011 /* Process the WQ release event */
14012 lpfc_sli4_sp_handle_rel_wcqe(phba,
14013 (struct lpfc_wcqe_release *)&cqevt);
14015 case CQE_CODE_XRI_ABORTED:
14016 /* Process the WQ XRI abort event */
14017 phba->last_completion_time = jiffies;
14018 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
14019 (struct sli4_wcqe_xri_aborted *)&cqevt);
14021 case CQE_CODE_RECEIVE:
14022 case CQE_CODE_RECEIVE_V1:
14023 /* Process the RQ event */
14024 phba->last_completion_time = jiffies;
14025 workposted = lpfc_sli4_sp_handle_rcqe(phba,
14026 (struct lpfc_rcqe *)&cqevt);
14029 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14030 "0388 Not a valid WCQE code: x%x\n",
14031 bf_get(lpfc_cqe_code, &cqevt));
14038 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
14039 * @phba: Pointer to HBA context object.
14040 * @eqe: Pointer to fast-path event queue entry.
14041 * @speq: Pointer to slow-path event queue.
14043 * This routine process a event queue entry from the slow-path event queue.
14044 * It will check the MajorCode and MinorCode to determine this is for a
14045 * completion event on a completion queue, if not, an error shall be logged
14046 * and just return. Otherwise, it will get to the corresponding completion
14047 * queue and process all the entries on that completion queue, rearm the
14048 * completion queue, and then return.
14052 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
14053 struct lpfc_queue *speq)
14055 struct lpfc_queue *cq = NULL, *childq;
14059 /* Get the reference to the corresponding CQ */
14060 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14062 list_for_each_entry(childq, &speq->child_list, list) {
14063 if (childq->queue_id == cqid) {
14068 if (unlikely(!cq)) {
14069 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
14070 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14071 "0365 Slow-path CQ identifier "
14072 "(%d) does not exist\n", cqid);
14076 /* Save EQ associated with this CQ */
14077 cq->assoc_qp = speq;
14079 if (is_kdump_kernel())
14080 ret = queue_work(phba->wq, &cq->spwork);
14082 ret = queue_work_on(cq->chann, phba->wq, &cq->spwork);
14085 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14086 "0390 Cannot schedule queue work "
14087 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14088 cqid, cq->queue_id, raw_smp_processor_id());
14092 * __lpfc_sli4_process_cq - Process elements of a CQ
14093 * @phba: Pointer to HBA context object.
14094 * @cq: Pointer to CQ to be processed
14095 * @handler: Routine to process each cqe
14096 * @delay: Pointer to usdelay to set in case of rescheduling of the handler
14097 * @poll_mode: Polling mode we were called from
14099 * This routine processes completion queue entries in a CQ. While a valid
14100 * queue element is found, the handler is called. During processing checks
14101 * are made for periodic doorbell writes to let the hardware know of
14102 * element consumption.
14104 * If the max limit on cqes to process is hit, or there are no more valid
14105 * entries, the loop stops. If we processed a sufficient number of elements,
14106 * meaning there is sufficient load, rather than rearming and generating
14107 * another interrupt, a cq rescheduling delay will be set. A delay of 0
14108 * indicates no rescheduling.
14110 * Returns True if work scheduled, False otherwise.
14113 __lpfc_sli4_process_cq(struct lpfc_hba *phba, struct lpfc_queue *cq,
14114 bool (*handler)(struct lpfc_hba *, struct lpfc_queue *,
14115 struct lpfc_cqe *), unsigned long *delay,
14116 enum lpfc_poll_mode poll_mode)
14118 struct lpfc_cqe *cqe;
14119 bool workposted = false;
14120 int count = 0, consumed = 0;
14123 /* default - no reschedule */
14126 if (cmpxchg(&cq->queue_claimed, 0, 1) != 0)
14127 goto rearm_and_exit;
14129 /* Process all the entries to the CQ */
14131 cqe = lpfc_sli4_cq_get(cq);
14133 workposted |= handler(phba, cq, cqe);
14134 __lpfc_sli4_consume_cqe(phba, cq, cqe);
14137 if (!(++count % cq->max_proc_limit))
14140 if (!(count % cq->notify_interval)) {
14141 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
14144 cq->assoc_qp->q_flag |= HBA_EQ_DELAY_CHK;
14147 if (count == LPFC_NVMET_CQ_NOTIFY)
14148 cq->q_flag |= HBA_NVMET_CQ_NOTIFY;
14150 cqe = lpfc_sli4_cq_get(cq);
14152 if (count >= phba->cfg_cq_poll_threshold) {
14157 /* Note: complete the irq_poll softirq before rearming CQ */
14158 if (poll_mode == LPFC_IRQ_POLL)
14159 irq_poll_complete(&cq->iop);
14161 /* Track the max number of CQEs processed in 1 EQ */
14162 if (count > cq->CQ_max_cqe)
14163 cq->CQ_max_cqe = count;
14165 cq->assoc_qp->EQ_cqe_cnt += count;
14167 /* Catch the no cq entry condition */
14168 if (unlikely(count == 0))
14169 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
14170 "0369 No entry from completion queue "
14171 "qid=%d\n", cq->queue_id);
14173 xchg(&cq->queue_claimed, 0);
14176 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
14177 arm ? LPFC_QUEUE_REARM : LPFC_QUEUE_NOARM);
14183 * __lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
14184 * @cq: pointer to CQ to process
14186 * This routine calls the cq processing routine with a handler specific
14187 * to the type of queue bound to it.
14189 * The CQ routine returns two values: the first is the calling status,
14190 * which indicates whether work was queued to the background discovery
14191 * thread. If true, the routine should wakeup the discovery thread;
14192 * the second is the delay parameter. If non-zero, rather than rearming
14193 * the CQ and yet another interrupt, the CQ handler should be queued so
14194 * that it is processed in a subsequent polling action. The value of
14195 * the delay indicates when to reschedule it.
14198 __lpfc_sli4_sp_process_cq(struct lpfc_queue *cq)
14200 struct lpfc_hba *phba = cq->phba;
14201 unsigned long delay;
14202 bool workposted = false;
14205 /* Process and rearm the CQ */
14206 switch (cq->type) {
14208 workposted |= __lpfc_sli4_process_cq(phba, cq,
14209 lpfc_sli4_sp_handle_mcqe,
14210 &delay, LPFC_QUEUE_WORK);
14213 if (cq->subtype == LPFC_IO)
14214 workposted |= __lpfc_sli4_process_cq(phba, cq,
14215 lpfc_sli4_fp_handle_cqe,
14216 &delay, LPFC_QUEUE_WORK);
14218 workposted |= __lpfc_sli4_process_cq(phba, cq,
14219 lpfc_sli4_sp_handle_cqe,
14220 &delay, LPFC_QUEUE_WORK);
14223 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14224 "0370 Invalid completion queue type (%d)\n",
14230 if (is_kdump_kernel())
14231 ret = queue_delayed_work(phba->wq, &cq->sched_spwork,
14234 ret = queue_delayed_work_on(cq->chann, phba->wq,
14235 &cq->sched_spwork, delay);
14237 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14238 "0394 Cannot schedule queue work "
14239 "for cqid=%d on CPU %d\n",
14240 cq->queue_id, cq->chann);
14243 /* wake up worker thread if there are works to be done */
14245 lpfc_worker_wake_up(phba);
14249 * lpfc_sli4_sp_process_cq - slow-path work handler when started by
14251 * @work: pointer to work element
14253 * translates from the work handler and calls the slow-path handler.
14256 lpfc_sli4_sp_process_cq(struct work_struct *work)
14258 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, spwork);
14260 __lpfc_sli4_sp_process_cq(cq);
14264 * lpfc_sli4_dly_sp_process_cq - slow-path work handler when started by timer
14265 * @work: pointer to work element
14267 * translates from the work handler and calls the slow-path handler.
14270 lpfc_sli4_dly_sp_process_cq(struct work_struct *work)
14272 struct lpfc_queue *cq = container_of(to_delayed_work(work),
14273 struct lpfc_queue, sched_spwork);
14275 __lpfc_sli4_sp_process_cq(cq);
14279 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
14280 * @phba: Pointer to HBA context object.
14281 * @cq: Pointer to associated CQ
14282 * @wcqe: Pointer to work-queue completion queue entry.
14284 * This routine process a fast-path work queue completion entry from fast-path
14285 * event queue for FCP command response completion.
14288 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14289 struct lpfc_wcqe_complete *wcqe)
14291 struct lpfc_sli_ring *pring = cq->pring;
14292 struct lpfc_iocbq *cmdiocbq;
14293 struct lpfc_iocbq irspiocbq;
14294 unsigned long iflags;
14296 /* Check for response status */
14297 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
14298 /* If resource errors reported from HBA, reduce queue
14299 * depth of the SCSI device.
14301 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
14302 IOSTAT_LOCAL_REJECT)) &&
14303 ((wcqe->parameter & IOERR_PARAM_MASK) ==
14304 IOERR_NO_RESOURCES))
14305 phba->lpfc_rampdown_queue_depth(phba);
14307 /* Log the cmpl status */
14308 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
14309 "0373 FCP CQE cmpl: status=x%x: "
14310 "CQE: %08x %08x %08x %08x\n",
14311 bf_get(lpfc_wcqe_c_status, wcqe),
14312 wcqe->word0, wcqe->total_data_placed,
14313 wcqe->parameter, wcqe->word3);
14316 /* Look up the FCP command IOCB and create pseudo response IOCB */
14317 spin_lock_irqsave(&pring->ring_lock, iflags);
14318 pring->stats.iocb_event++;
14319 spin_unlock_irqrestore(&pring->ring_lock, iflags);
14320 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
14321 bf_get(lpfc_wcqe_c_request_tag, wcqe));
14322 if (unlikely(!cmdiocbq)) {
14323 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14324 "0374 FCP complete with no corresponding "
14325 "cmdiocb: iotag (%d)\n",
14326 bf_get(lpfc_wcqe_c_request_tag, wcqe));
14329 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
14330 cmdiocbq->isr_timestamp = cq->isr_timestamp;
14332 if (cmdiocbq->iocb_cmpl == NULL) {
14333 if (cmdiocbq->wqe_cmpl) {
14334 /* For FCP the flag is cleared in wqe_cmpl */
14335 if (!(cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
14336 cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
14337 spin_lock_irqsave(&phba->hbalock, iflags);
14338 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
14339 spin_unlock_irqrestore(&phba->hbalock, iflags);
14342 /* Pass the cmd_iocb and the wcqe to the upper layer */
14343 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
14346 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14347 "0375 FCP cmdiocb not callback function "
14349 bf_get(lpfc_wcqe_c_request_tag, wcqe));
14353 /* Only SLI4 non-IO commands stil use IOCB */
14354 /* Fake the irspiocb and copy necessary response information */
14355 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
14357 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
14358 spin_lock_irqsave(&phba->hbalock, iflags);
14359 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
14360 spin_unlock_irqrestore(&phba->hbalock, iflags);
14363 /* Pass the cmd_iocb and the rsp state to the upper layer */
14364 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
14368 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
14369 * @phba: Pointer to HBA context object.
14370 * @cq: Pointer to completion queue.
14371 * @wcqe: Pointer to work-queue completion queue entry.
14373 * This routine handles an fast-path WQ entry consumed event by invoking the
14374 * proper WQ release routine to the slow-path WQ.
14377 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14378 struct lpfc_wcqe_release *wcqe)
14380 struct lpfc_queue *childwq;
14381 bool wqid_matched = false;
14384 /* Check for fast-path FCP work queue release */
14385 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
14386 list_for_each_entry(childwq, &cq->child_list, list) {
14387 if (childwq->queue_id == hba_wqid) {
14388 lpfc_sli4_wq_release(childwq,
14389 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
14390 if (childwq->q_flag & HBA_NVMET_WQFULL)
14391 lpfc_nvmet_wqfull_process(phba, childwq);
14392 wqid_matched = true;
14396 /* Report warning log message if no match found */
14397 if (wqid_matched != true)
14398 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14399 "2580 Fast-path wqe consume event carries "
14400 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
14404 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
14405 * @phba: Pointer to HBA context object.
14406 * @cq: Pointer to completion queue.
14407 * @rcqe: Pointer to receive-queue completion queue entry.
14409 * This routine process a receive-queue completion queue entry.
14411 * Return: true if work posted to worker thread, otherwise false.
14414 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14415 struct lpfc_rcqe *rcqe)
14417 bool workposted = false;
14418 struct lpfc_queue *hrq;
14419 struct lpfc_queue *drq;
14420 struct rqb_dmabuf *dma_buf;
14421 struct fc_frame_header *fc_hdr;
14422 struct lpfc_nvmet_tgtport *tgtp;
14423 uint32_t status, rq_id;
14424 unsigned long iflags;
14425 uint32_t fctl, idx;
14427 if ((phba->nvmet_support == 0) ||
14428 (phba->sli4_hba.nvmet_cqset == NULL))
14431 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
14432 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
14433 drq = phba->sli4_hba.nvmet_mrq_data[idx];
14435 /* sanity check on queue memory */
14436 if (unlikely(!hrq) || unlikely(!drq))
14439 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
14440 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
14442 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
14444 if ((phba->nvmet_support == 0) ||
14445 (rq_id != hrq->queue_id))
14448 status = bf_get(lpfc_rcqe_status, rcqe);
14450 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
14451 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14452 "6126 Receive Frame Truncated!!\n");
14454 case FC_STATUS_RQ_SUCCESS:
14455 spin_lock_irqsave(&phba->hbalock, iflags);
14456 lpfc_sli4_rq_release(hrq, drq);
14457 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
14459 hrq->RQ_no_buf_found++;
14460 spin_unlock_irqrestore(&phba->hbalock, iflags);
14463 spin_unlock_irqrestore(&phba->hbalock, iflags);
14465 hrq->RQ_buf_posted--;
14466 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
14468 /* Just some basic sanity checks on FCP Command frame */
14469 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
14470 fc_hdr->fh_f_ctl[1] << 8 |
14471 fc_hdr->fh_f_ctl[2]);
14473 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
14474 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
14475 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
14478 if (fc_hdr->fh_type == FC_TYPE_FCP) {
14479 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
14480 lpfc_nvmet_unsol_fcp_event(
14481 phba, idx, dma_buf, cq->isr_timestamp,
14482 cq->q_flag & HBA_NVMET_CQ_NOTIFY);
14486 lpfc_rq_buf_free(phba, &dma_buf->hbuf);
14488 case FC_STATUS_INSUFF_BUF_FRM_DISC:
14489 if (phba->nvmet_support) {
14490 tgtp = phba->targetport->private;
14491 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14492 "6401 RQE Error x%x, posted %d err_cnt "
14494 status, hrq->RQ_buf_posted,
14495 hrq->RQ_no_posted_buf,
14496 atomic_read(&tgtp->rcv_fcp_cmd_in),
14497 atomic_read(&tgtp->rcv_fcp_cmd_out),
14498 atomic_read(&tgtp->xmt_fcp_release));
14502 case FC_STATUS_INSUFF_BUF_NEED_BUF:
14503 hrq->RQ_no_posted_buf++;
14504 /* Post more buffers if possible */
14512 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
14513 * @phba: adapter with cq
14514 * @cq: Pointer to the completion queue.
14515 * @cqe: Pointer to fast-path completion queue entry.
14517 * This routine process a fast-path work queue completion entry from fast-path
14518 * event queue for FCP command response completion.
14520 * Return: true if work posted to worker thread, otherwise false.
14523 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14524 struct lpfc_cqe *cqe)
14526 struct lpfc_wcqe_release wcqe;
14527 bool workposted = false;
14529 /* Copy the work queue CQE and convert endian order if needed */
14530 lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
14532 /* Check and process for different type of WCQE and dispatch */
14533 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
14534 case CQE_CODE_COMPL_WQE:
14535 case CQE_CODE_NVME_ERSP:
14537 /* Process the WQ complete event */
14538 phba->last_completion_time = jiffies;
14539 if (cq->subtype == LPFC_IO || cq->subtype == LPFC_NVME_LS)
14540 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
14541 (struct lpfc_wcqe_complete *)&wcqe);
14543 case CQE_CODE_RELEASE_WQE:
14544 cq->CQ_release_wqe++;
14545 /* Process the WQ release event */
14546 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
14547 (struct lpfc_wcqe_release *)&wcqe);
14549 case CQE_CODE_XRI_ABORTED:
14550 cq->CQ_xri_aborted++;
14551 /* Process the WQ XRI abort event */
14552 phba->last_completion_time = jiffies;
14553 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
14554 (struct sli4_wcqe_xri_aborted *)&wcqe);
14556 case CQE_CODE_RECEIVE_V1:
14557 case CQE_CODE_RECEIVE:
14558 phba->last_completion_time = jiffies;
14559 if (cq->subtype == LPFC_NVMET) {
14560 workposted = lpfc_sli4_nvmet_handle_rcqe(
14561 phba, cq, (struct lpfc_rcqe *)&wcqe);
14565 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14566 "0144 Not a valid CQE code: x%x\n",
14567 bf_get(lpfc_wcqe_c_code, &wcqe));
14574 * lpfc_sli4_sched_cq_work - Schedules cq work
14575 * @phba: Pointer to HBA context object.
14576 * @cq: Pointer to CQ
14579 * This routine checks the poll mode of the CQ corresponding to
14580 * cq->chann, then either schedules a softirq or queue_work to complete
14583 * queue_work path is taken if in NVMET mode, or if poll_mode is in
14584 * LPFC_QUEUE_WORK mode. Otherwise, softirq path is taken.
14587 static void lpfc_sli4_sched_cq_work(struct lpfc_hba *phba,
14588 struct lpfc_queue *cq, uint16_t cqid)
14592 switch (cq->poll_mode) {
14593 case LPFC_IRQ_POLL:
14594 irq_poll_sched(&cq->iop);
14596 case LPFC_QUEUE_WORK:
14598 if (is_kdump_kernel())
14599 ret = queue_work(phba->wq, &cq->irqwork);
14601 ret = queue_work_on(cq->chann, phba->wq, &cq->irqwork);
14603 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14604 "0383 Cannot schedule queue work "
14605 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14606 cqid, cq->queue_id,
14607 raw_smp_processor_id());
14612 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
14613 * @phba: Pointer to HBA context object.
14614 * @eq: Pointer to the queue structure.
14615 * @eqe: Pointer to fast-path event queue entry.
14617 * This routine process a event queue entry from the fast-path event queue.
14618 * It will check the MajorCode and MinorCode to determine this is for a
14619 * completion event on a completion queue, if not, an error shall be logged
14620 * and just return. Otherwise, it will get to the corresponding completion
14621 * queue and process all the entries on the completion queue, rearm the
14622 * completion queue, and then return.
14625 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
14626 struct lpfc_eqe *eqe)
14628 struct lpfc_queue *cq = NULL;
14629 uint32_t qidx = eq->hdwq;
14632 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
14633 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14634 "0366 Not a valid completion "
14635 "event: majorcode=x%x, minorcode=x%x\n",
14636 bf_get_le32(lpfc_eqe_major_code, eqe),
14637 bf_get_le32(lpfc_eqe_minor_code, eqe));
14641 /* Get the reference to the corresponding CQ */
14642 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14644 /* Use the fast lookup method first */
14645 if (cqid <= phba->sli4_hba.cq_max) {
14646 cq = phba->sli4_hba.cq_lookup[cqid];
14651 /* Next check for NVMET completion */
14652 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
14653 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
14654 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
14655 /* Process NVMET unsol rcv */
14656 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
14661 if (phba->sli4_hba.nvmels_cq &&
14662 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
14663 /* Process NVME unsol rcv */
14664 cq = phba->sli4_hba.nvmels_cq;
14667 /* Otherwise this is a Slow path event */
14669 lpfc_sli4_sp_handle_eqe(phba, eqe,
14670 phba->sli4_hba.hdwq[qidx].hba_eq);
14675 if (unlikely(cqid != cq->queue_id)) {
14676 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14677 "0368 Miss-matched fast-path completion "
14678 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
14679 cqid, cq->queue_id);
14684 #if defined(CONFIG_SCSI_LPFC_DEBUG_FS)
14685 if (phba->ktime_on)
14686 cq->isr_timestamp = ktime_get_ns();
14688 cq->isr_timestamp = 0;
14690 lpfc_sli4_sched_cq_work(phba, cq, cqid);
14694 * __lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
14695 * @cq: Pointer to CQ to be processed
14696 * @poll_mode: Enum lpfc_poll_state to determine poll mode
14698 * This routine calls the cq processing routine with the handler for
14701 * The CQ routine returns two values: the first is the calling status,
14702 * which indicates whether work was queued to the background discovery
14703 * thread. If true, the routine should wakeup the discovery thread;
14704 * the second is the delay parameter. If non-zero, rather than rearming
14705 * the CQ and yet another interrupt, the CQ handler should be queued so
14706 * that it is processed in a subsequent polling action. The value of
14707 * the delay indicates when to reschedule it.
14710 __lpfc_sli4_hba_process_cq(struct lpfc_queue *cq,
14711 enum lpfc_poll_mode poll_mode)
14713 struct lpfc_hba *phba = cq->phba;
14714 unsigned long delay;
14715 bool workposted = false;
14718 /* process and rearm the CQ */
14719 workposted |= __lpfc_sli4_process_cq(phba, cq, lpfc_sli4_fp_handle_cqe,
14720 &delay, poll_mode);
14723 if (is_kdump_kernel())
14724 ret = queue_delayed_work(phba->wq, &cq->sched_irqwork,
14727 ret = queue_delayed_work_on(cq->chann, phba->wq,
14728 &cq->sched_irqwork, delay);
14730 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14731 "0367 Cannot schedule queue work "
14732 "for cqid=%d on CPU %d\n",
14733 cq->queue_id, cq->chann);
14736 /* wake up worker thread if there are works to be done */
14738 lpfc_worker_wake_up(phba);
14742 * lpfc_sli4_hba_process_cq - fast-path work handler when started by
14744 * @work: pointer to work element
14746 * translates from the work handler and calls the fast-path handler.
14749 lpfc_sli4_hba_process_cq(struct work_struct *work)
14751 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, irqwork);
14753 __lpfc_sli4_hba_process_cq(cq, LPFC_QUEUE_WORK);
14757 * lpfc_sli4_dly_hba_process_cq - fast-path work handler when started by timer
14758 * @work: pointer to work element
14760 * translates from the work handler and calls the fast-path handler.
14763 lpfc_sli4_dly_hba_process_cq(struct work_struct *work)
14765 struct lpfc_queue *cq = container_of(to_delayed_work(work),
14766 struct lpfc_queue, sched_irqwork);
14768 __lpfc_sli4_hba_process_cq(cq, LPFC_QUEUE_WORK);
14772 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
14773 * @irq: Interrupt number.
14774 * @dev_id: The device context pointer.
14776 * This function is directly called from the PCI layer as an interrupt
14777 * service routine when device with SLI-4 interface spec is enabled with
14778 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
14779 * ring event in the HBA. However, when the device is enabled with either
14780 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
14781 * device-level interrupt handler. When the PCI slot is in error recovery
14782 * or the HBA is undergoing initialization, the interrupt handler will not
14783 * process the interrupt. The SCSI FCP fast-path ring event are handled in
14784 * the intrrupt context. This function is called without any lock held.
14785 * It gets the hbalock to access and update SLI data structures. Note that,
14786 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
14787 * equal to that of FCP CQ index.
14789 * The link attention and ELS ring attention events are handled
14790 * by the worker thread. The interrupt handler signals the worker thread
14791 * and returns for these events. This function is called without any lock
14792 * held. It gets the hbalock to access and update SLI data structures.
14794 * This function returns IRQ_HANDLED when interrupt is handled else it
14795 * returns IRQ_NONE.
14798 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
14800 struct lpfc_hba *phba;
14801 struct lpfc_hba_eq_hdl *hba_eq_hdl;
14802 struct lpfc_queue *fpeq;
14803 unsigned long iflag;
14806 struct lpfc_eq_intr_info *eqi;
14808 /* Get the driver's phba structure from the dev_id */
14809 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
14810 phba = hba_eq_hdl->phba;
14811 hba_eqidx = hba_eq_hdl->idx;
14813 if (unlikely(!phba))
14815 if (unlikely(!phba->sli4_hba.hdwq))
14818 /* Get to the EQ struct associated with this vector */
14819 fpeq = phba->sli4_hba.hba_eq_hdl[hba_eqidx].eq;
14820 if (unlikely(!fpeq))
14823 /* Check device state for handling interrupt */
14824 if (unlikely(lpfc_intr_state_check(phba))) {
14825 /* Check again for link_state with lock held */
14826 spin_lock_irqsave(&phba->hbalock, iflag);
14827 if (phba->link_state < LPFC_LINK_DOWN)
14828 /* Flush, clear interrupt, and rearm the EQ */
14829 lpfc_sli4_eqcq_flush(phba, fpeq);
14830 spin_unlock_irqrestore(&phba->hbalock, iflag);
14834 eqi = this_cpu_ptr(phba->sli4_hba.eq_info);
14837 fpeq->last_cpu = raw_smp_processor_id();
14839 if (eqi->icnt > LPFC_EQD_ISR_TRIGGER &&
14840 fpeq->q_flag & HBA_EQ_DELAY_CHK &&
14841 phba->cfg_auto_imax &&
14842 fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
14843 phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
14844 lpfc_sli4_mod_hba_eq_delay(phba, fpeq, LPFC_MAX_AUTO_EQ_DELAY);
14846 /* process and rearm the EQ */
14847 ecount = lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM);
14849 if (unlikely(ecount == 0)) {
14850 fpeq->EQ_no_entry++;
14851 if (phba->intr_type == MSIX)
14852 /* MSI-X treated interrupt served as no EQ share INT */
14853 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14854 "0358 MSI-X interrupt with no EQE\n");
14856 /* Non MSI-X treated on interrupt as EQ share INT */
14860 return IRQ_HANDLED;
14861 } /* lpfc_sli4_hba_intr_handler */
14864 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
14865 * @irq: Interrupt number.
14866 * @dev_id: The device context pointer.
14868 * This function is the device-level interrupt handler to device with SLI-4
14869 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
14870 * interrupt mode is enabled and there is an event in the HBA which requires
14871 * driver attention. This function invokes the slow-path interrupt attention
14872 * handling function and fast-path interrupt attention handling function in
14873 * turn to process the relevant HBA attention events. This function is called
14874 * without any lock held. It gets the hbalock to access and update SLI data
14877 * This function returns IRQ_HANDLED when interrupt is handled, else it
14878 * returns IRQ_NONE.
14881 lpfc_sli4_intr_handler(int irq, void *dev_id)
14883 struct lpfc_hba *phba;
14884 irqreturn_t hba_irq_rc;
14885 bool hba_handled = false;
14888 /* Get the driver's phba structure from the dev_id */
14889 phba = (struct lpfc_hba *)dev_id;
14891 if (unlikely(!phba))
14895 * Invoke fast-path host attention interrupt handling as appropriate.
14897 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
14898 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
14899 &phba->sli4_hba.hba_eq_hdl[qidx]);
14900 if (hba_irq_rc == IRQ_HANDLED)
14901 hba_handled |= true;
14904 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
14905 } /* lpfc_sli4_intr_handler */
14907 void lpfc_sli4_poll_hbtimer(struct timer_list *t)
14909 struct lpfc_hba *phba = from_timer(phba, t, cpuhp_poll_timer);
14910 struct lpfc_queue *eq;
14915 list_for_each_entry_rcu(eq, &phba->poll_list, _poll_list)
14916 i += lpfc_sli4_poll_eq(eq, LPFC_POLL_SLOWPATH);
14917 if (!list_empty(&phba->poll_list))
14918 mod_timer(&phba->cpuhp_poll_timer,
14919 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
14924 inline int lpfc_sli4_poll_eq(struct lpfc_queue *eq, uint8_t path)
14926 struct lpfc_hba *phba = eq->phba;
14930 * Unlocking an irq is one of the entry point to check
14931 * for re-schedule, but we are good for io submission
14932 * path as midlayer does a get_cpu to glue us in. Flush
14933 * out the invalidate queue so we can see the updated
14938 if (READ_ONCE(eq->mode) == LPFC_EQ_POLL)
14939 /* We will not likely get the completion for the caller
14940 * during this iteration but i guess that's fine.
14941 * Future io's coming on this eq should be able to
14942 * pick it up. As for the case of single io's, they
14943 * will be handled through a sched from polling timer
14944 * function which is currently triggered every 1msec.
14946 i = lpfc_sli4_process_eq(phba, eq, LPFC_QUEUE_NOARM);
14951 static inline void lpfc_sli4_add_to_poll_list(struct lpfc_queue *eq)
14953 struct lpfc_hba *phba = eq->phba;
14955 /* kickstart slowpath processing if needed */
14956 if (list_empty(&phba->poll_list))
14957 mod_timer(&phba->cpuhp_poll_timer,
14958 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
14960 list_add_rcu(&eq->_poll_list, &phba->poll_list);
14964 static inline void lpfc_sli4_remove_from_poll_list(struct lpfc_queue *eq)
14966 struct lpfc_hba *phba = eq->phba;
14968 /* Disable slowpath processing for this eq. Kick start the eq
14969 * by RE-ARMING the eq's ASAP
14971 list_del_rcu(&eq->_poll_list);
14974 if (list_empty(&phba->poll_list))
14975 del_timer_sync(&phba->cpuhp_poll_timer);
14978 void lpfc_sli4_cleanup_poll_list(struct lpfc_hba *phba)
14980 struct lpfc_queue *eq, *next;
14982 list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list)
14983 list_del(&eq->_poll_list);
14985 INIT_LIST_HEAD(&phba->poll_list);
14990 __lpfc_sli4_switch_eqmode(struct lpfc_queue *eq, uint8_t mode)
14992 if (mode == eq->mode)
14995 * currently this function is only called during a hotplug
14996 * event and the cpu on which this function is executing
14997 * is going offline. By now the hotplug has instructed
14998 * the scheduler to remove this cpu from cpu active mask.
14999 * So we don't need to work about being put aside by the
15000 * scheduler for a high priority process. Yes, the inte-
15001 * rrupts could come but they are known to retire ASAP.
15004 /* Disable polling in the fastpath */
15005 WRITE_ONCE(eq->mode, mode);
15006 /* flush out the store buffer */
15010 * Add this eq to the polling list and start polling. For
15011 * a grace period both interrupt handler and poller will
15012 * try to process the eq _but_ that's fine. We have a
15013 * synchronization mechanism in place (queue_claimed) to
15014 * deal with it. This is just a draining phase for int-
15015 * errupt handler (not eq's) as we have guranteed through
15016 * barrier that all the CPUs have seen the new CQ_POLLED
15017 * state. which will effectively disable the REARMING of
15018 * the EQ. The whole idea is eq's die off eventually as
15019 * we are not rearming EQ's anymore.
15021 mode ? lpfc_sli4_add_to_poll_list(eq) :
15022 lpfc_sli4_remove_from_poll_list(eq);
15025 void lpfc_sli4_start_polling(struct lpfc_queue *eq)
15027 __lpfc_sli4_switch_eqmode(eq, LPFC_EQ_POLL);
15030 void lpfc_sli4_stop_polling(struct lpfc_queue *eq)
15032 struct lpfc_hba *phba = eq->phba;
15034 __lpfc_sli4_switch_eqmode(eq, LPFC_EQ_INTERRUPT);
15036 /* Kick start for the pending io's in h/w.
15037 * Once we switch back to interrupt processing on a eq
15038 * the io path completion will only arm eq's when it
15039 * receives a completion. But since eq's are in disa-
15040 * rmed state it doesn't receive a completion. This
15041 * creates a deadlock scenaro.
15043 phba->sli4_hba.sli4_write_eq_db(phba, eq, 0, LPFC_QUEUE_REARM);
15047 * lpfc_sli4_queue_free - free a queue structure and associated memory
15048 * @queue: The queue structure to free.
15050 * This function frees a queue structure and the DMAable memory used for
15051 * the host resident queue. This function must be called after destroying the
15052 * queue on the HBA.
15055 lpfc_sli4_queue_free(struct lpfc_queue *queue)
15057 struct lpfc_dmabuf *dmabuf;
15062 if (!list_empty(&queue->wq_list))
15063 list_del(&queue->wq_list);
15065 while (!list_empty(&queue->page_list)) {
15066 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
15068 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
15069 dmabuf->virt, dmabuf->phys);
15073 lpfc_free_rq_buffer(queue->phba, queue);
15074 kfree(queue->rqbp);
15077 if (!list_empty(&queue->cpu_list))
15078 list_del(&queue->cpu_list);
15085 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
15086 * @phba: The HBA that this queue is being created on.
15087 * @page_size: The size of a queue page
15088 * @entry_size: The size of each queue entry for this queue.
15089 * @entry_count: The number of entries that this queue will handle.
15090 * @cpu: The cpu that will primarily utilize this queue.
15092 * This function allocates a queue structure and the DMAable memory used for
15093 * the host resident queue. This function must be called before creating the
15094 * queue on the HBA.
15096 struct lpfc_queue *
15097 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
15098 uint32_t entry_size, uint32_t entry_count, int cpu)
15100 struct lpfc_queue *queue;
15101 struct lpfc_dmabuf *dmabuf;
15102 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15105 if (!phba->sli4_hba.pc_sli4_params.supported)
15106 hw_page_size = page_size;
15108 pgcnt = ALIGN(entry_size * entry_count, hw_page_size) / hw_page_size;
15110 /* If needed, Adjust page count to match the max the adapter supports */
15111 if (pgcnt > phba->sli4_hba.pc_sli4_params.wqpcnt)
15112 pgcnt = phba->sli4_hba.pc_sli4_params.wqpcnt;
15114 queue = kzalloc_node(sizeof(*queue) + (sizeof(void *) * pgcnt),
15115 GFP_KERNEL, cpu_to_node(cpu));
15119 INIT_LIST_HEAD(&queue->list);
15120 INIT_LIST_HEAD(&queue->_poll_list);
15121 INIT_LIST_HEAD(&queue->wq_list);
15122 INIT_LIST_HEAD(&queue->wqfull_list);
15123 INIT_LIST_HEAD(&queue->page_list);
15124 INIT_LIST_HEAD(&queue->child_list);
15125 INIT_LIST_HEAD(&queue->cpu_list);
15127 /* Set queue parameters now. If the system cannot provide memory
15128 * resources, the free routine needs to know what was allocated.
15130 queue->page_count = pgcnt;
15131 queue->q_pgs = (void **)&queue[1];
15132 queue->entry_cnt_per_pg = hw_page_size / entry_size;
15133 queue->entry_size = entry_size;
15134 queue->entry_count = entry_count;
15135 queue->page_size = hw_page_size;
15136 queue->phba = phba;
15138 for (x = 0; x < queue->page_count; x++) {
15139 dmabuf = kzalloc_node(sizeof(*dmabuf), GFP_KERNEL,
15140 dev_to_node(&phba->pcidev->dev));
15143 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
15144 hw_page_size, &dmabuf->phys,
15146 if (!dmabuf->virt) {
15150 dmabuf->buffer_tag = x;
15151 list_add_tail(&dmabuf->list, &queue->page_list);
15152 /* use lpfc_sli4_qe to index a paritcular entry in this page */
15153 queue->q_pgs[x] = dmabuf->virt;
15155 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
15156 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
15157 INIT_DELAYED_WORK(&queue->sched_irqwork, lpfc_sli4_dly_hba_process_cq);
15158 INIT_DELAYED_WORK(&queue->sched_spwork, lpfc_sli4_dly_sp_process_cq);
15160 /* notify_interval will be set during q creation */
15164 lpfc_sli4_queue_free(queue);
15169 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
15170 * @phba: HBA structure that indicates port to create a queue on.
15171 * @pci_barset: PCI BAR set flag.
15173 * This function shall perform iomap of the specified PCI BAR address to host
15174 * memory address if not already done so and return it. The returned host
15175 * memory address can be NULL.
15177 static void __iomem *
15178 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
15183 switch (pci_barset) {
15184 case WQ_PCI_BAR_0_AND_1:
15185 return phba->pci_bar0_memmap_p;
15186 case WQ_PCI_BAR_2_AND_3:
15187 return phba->pci_bar2_memmap_p;
15188 case WQ_PCI_BAR_4_AND_5:
15189 return phba->pci_bar4_memmap_p;
15197 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on EQs
15198 * @phba: HBA structure that EQs are on.
15199 * @startq: The starting EQ index to modify
15200 * @numq: The number of EQs (consecutive indexes) to modify
15201 * @usdelay: amount of delay
15203 * This function revises the EQ delay on 1 or more EQs. The EQ delay
15204 * is set either by writing to a register (if supported by the SLI Port)
15205 * or by mailbox command. The mailbox command allows several EQs to be
15208 * The @phba struct is used to send a mailbox command to HBA. The @startq
15209 * is used to get the starting EQ index to change. The @numq value is
15210 * used to specify how many consecutive EQ indexes, starting at EQ index,
15211 * are to be changed. This function is asynchronous and will wait for any
15212 * mailbox commands to finish before returning.
15214 * On success this function will return a zero. If unable to allocate
15215 * enough memory this function will return -ENOMEM. If a mailbox command
15216 * fails this function will return -ENXIO. Note: on ENXIO, some EQs may
15217 * have had their delay multipler changed.
15220 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
15221 uint32_t numq, uint32_t usdelay)
15223 struct lpfc_mbx_modify_eq_delay *eq_delay;
15224 LPFC_MBOXQ_t *mbox;
15225 struct lpfc_queue *eq;
15226 int cnt = 0, rc, length;
15227 uint32_t shdr_status, shdr_add_status;
15230 union lpfc_sli4_cfg_shdr *shdr;
15232 if (startq >= phba->cfg_irq_chann)
15235 if (usdelay > 0xFFFF) {
15236 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP | LOG_NVME,
15237 "6429 usdelay %d too large. Scaled down to "
15238 "0xFFFF.\n", usdelay);
15242 /* set values by EQ_DELAY register if supported */
15243 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
15244 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
15245 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
15249 lpfc_sli4_mod_hba_eq_delay(phba, eq, usdelay);
15257 /* Otherwise, set values by mailbox cmd */
15259 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15261 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15262 "6428 Failed allocating mailbox cmd buffer."
15263 " EQ delay was not set.\n");
15266 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
15267 sizeof(struct lpfc_sli4_cfg_mhdr));
15268 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15269 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
15270 length, LPFC_SLI4_MBX_EMBED);
15271 eq_delay = &mbox->u.mqe.un.eq_delay;
15273 /* Calculate delay multiper from maximum interrupt per second */
15274 dmult = (usdelay * LPFC_DMULT_CONST) / LPFC_SEC_TO_USEC;
15277 if (dmult > LPFC_DMULT_MAX)
15278 dmult = LPFC_DMULT_MAX;
15280 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
15281 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
15284 eq->q_mode = usdelay;
15285 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
15286 eq_delay->u.request.eq[cnt].phase = 0;
15287 eq_delay->u.request.eq[cnt].delay_multi = dmult;
15292 eq_delay->u.request.num_eq = cnt;
15294 mbox->vport = phba->pport;
15295 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15296 mbox->ctx_buf = NULL;
15297 mbox->ctx_ndlp = NULL;
15298 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15299 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
15300 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15301 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15302 if (shdr_status || shdr_add_status || rc) {
15303 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15304 "2512 MODIFY_EQ_DELAY mailbox failed with "
15305 "status x%x add_status x%x, mbx status x%x\n",
15306 shdr_status, shdr_add_status, rc);
15308 mempool_free(mbox, phba->mbox_mem_pool);
15313 * lpfc_eq_create - Create an Event Queue on the HBA
15314 * @phba: HBA structure that indicates port to create a queue on.
15315 * @eq: The queue structure to use to create the event queue.
15316 * @imax: The maximum interrupt per second limit.
15318 * This function creates an event queue, as detailed in @eq, on a port,
15319 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
15321 * The @phba struct is used to send mailbox command to HBA. The @eq struct
15322 * is used to get the entry count and entry size that are necessary to
15323 * determine the number of pages to allocate and use for this queue. This
15324 * function will send the EQ_CREATE mailbox command to the HBA to setup the
15325 * event queue. This function is asynchronous and will wait for the mailbox
15326 * command to finish before continuing.
15328 * On success this function will return a zero. If unable to allocate enough
15329 * memory this function will return -ENOMEM. If the queue create mailbox command
15330 * fails this function will return -ENXIO.
15333 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
15335 struct lpfc_mbx_eq_create *eq_create;
15336 LPFC_MBOXQ_t *mbox;
15337 int rc, length, status = 0;
15338 struct lpfc_dmabuf *dmabuf;
15339 uint32_t shdr_status, shdr_add_status;
15340 union lpfc_sli4_cfg_shdr *shdr;
15342 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15344 /* sanity check on queue memory */
15347 if (!phba->sli4_hba.pc_sli4_params.supported)
15348 hw_page_size = SLI4_PAGE_SIZE;
15350 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15353 length = (sizeof(struct lpfc_mbx_eq_create) -
15354 sizeof(struct lpfc_sli4_cfg_mhdr));
15355 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15356 LPFC_MBOX_OPCODE_EQ_CREATE,
15357 length, LPFC_SLI4_MBX_EMBED);
15358 eq_create = &mbox->u.mqe.un.eq_create;
15359 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
15360 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
15362 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
15364 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
15366 /* Use version 2 of CREATE_EQ if eqav is set */
15367 if (phba->sli4_hba.pc_sli4_params.eqav) {
15368 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15369 LPFC_Q_CREATE_VERSION_2);
15370 bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
15371 phba->sli4_hba.pc_sli4_params.eqav);
15374 /* don't setup delay multiplier using EQ_CREATE */
15376 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
15378 switch (eq->entry_count) {
15380 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15381 "0360 Unsupported EQ count. (%d)\n",
15383 if (eq->entry_count < 256) {
15387 fallthrough; /* otherwise default to smallest count */
15389 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
15393 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
15397 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
15401 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
15405 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
15409 list_for_each_entry(dmabuf, &eq->page_list, list) {
15410 memset(dmabuf->virt, 0, hw_page_size);
15411 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15412 putPaddrLow(dmabuf->phys);
15413 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15414 putPaddrHigh(dmabuf->phys);
15416 mbox->vport = phba->pport;
15417 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15418 mbox->ctx_buf = NULL;
15419 mbox->ctx_ndlp = NULL;
15420 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15421 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15422 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15423 if (shdr_status || shdr_add_status || rc) {
15424 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15425 "2500 EQ_CREATE mailbox failed with "
15426 "status x%x add_status x%x, mbx status x%x\n",
15427 shdr_status, shdr_add_status, rc);
15430 eq->type = LPFC_EQ;
15431 eq->subtype = LPFC_NONE;
15432 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
15433 if (eq->queue_id == 0xFFFF)
15435 eq->host_index = 0;
15436 eq->notify_interval = LPFC_EQ_NOTIFY_INTRVL;
15437 eq->max_proc_limit = LPFC_EQ_MAX_PROC_LIMIT;
15439 mempool_free(mbox, phba->mbox_mem_pool);
15443 static int lpfc_cq_poll_hdler(struct irq_poll *iop, int budget)
15445 struct lpfc_queue *cq = container_of(iop, struct lpfc_queue, iop);
15447 __lpfc_sli4_hba_process_cq(cq, LPFC_IRQ_POLL);
15453 * lpfc_cq_create - Create a Completion Queue on the HBA
15454 * @phba: HBA structure that indicates port to create a queue on.
15455 * @cq: The queue structure to use to create the completion queue.
15456 * @eq: The event queue to bind this completion queue to.
15457 * @type: Type of queue (EQ, GCQ, MCQ, WCQ, etc).
15458 * @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
15460 * This function creates a completion queue, as detailed in @wq, on a port,
15461 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
15463 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15464 * is used to get the entry count and entry size that are necessary to
15465 * determine the number of pages to allocate and use for this queue. The @eq
15466 * is used to indicate which event queue to bind this completion queue to. This
15467 * function will send the CQ_CREATE mailbox command to the HBA to setup the
15468 * completion queue. This function is asynchronous and will wait for the mailbox
15469 * command to finish before continuing.
15471 * On success this function will return a zero. If unable to allocate enough
15472 * memory this function will return -ENOMEM. If the queue create mailbox command
15473 * fails this function will return -ENXIO.
15476 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
15477 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
15479 struct lpfc_mbx_cq_create *cq_create;
15480 struct lpfc_dmabuf *dmabuf;
15481 LPFC_MBOXQ_t *mbox;
15482 int rc, length, status = 0;
15483 uint32_t shdr_status, shdr_add_status;
15484 union lpfc_sli4_cfg_shdr *shdr;
15486 /* sanity check on queue memory */
15490 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15493 length = (sizeof(struct lpfc_mbx_cq_create) -
15494 sizeof(struct lpfc_sli4_cfg_mhdr));
15495 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15496 LPFC_MBOX_OPCODE_CQ_CREATE,
15497 length, LPFC_SLI4_MBX_EMBED);
15498 cq_create = &mbox->u.mqe.un.cq_create;
15499 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
15500 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
15502 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
15503 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
15504 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15505 phba->sli4_hba.pc_sli4_params.cqv);
15506 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
15507 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
15508 (cq->page_size / SLI4_PAGE_SIZE));
15509 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
15511 bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
15512 phba->sli4_hba.pc_sli4_params.cqav);
15514 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
15517 switch (cq->entry_count) {
15520 if (phba->sli4_hba.pc_sli4_params.cqv ==
15521 LPFC_Q_CREATE_VERSION_2) {
15522 cq_create->u.request.context.lpfc_cq_context_count =
15524 bf_set(lpfc_cq_context_count,
15525 &cq_create->u.request.context,
15526 LPFC_CQ_CNT_WORD7);
15531 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15532 "0361 Unsupported CQ count: "
15533 "entry cnt %d sz %d pg cnt %d\n",
15534 cq->entry_count, cq->entry_size,
15536 if (cq->entry_count < 256) {
15540 fallthrough; /* otherwise default to smallest count */
15542 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
15546 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
15550 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
15554 list_for_each_entry(dmabuf, &cq->page_list, list) {
15555 memset(dmabuf->virt, 0, cq->page_size);
15556 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15557 putPaddrLow(dmabuf->phys);
15558 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15559 putPaddrHigh(dmabuf->phys);
15561 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15563 /* The IOCTL status is embedded in the mailbox subheader. */
15564 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15565 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15566 if (shdr_status || shdr_add_status || rc) {
15567 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15568 "2501 CQ_CREATE mailbox failed with "
15569 "status x%x add_status x%x, mbx status x%x\n",
15570 shdr_status, shdr_add_status, rc);
15574 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
15575 if (cq->queue_id == 0xFFFF) {
15579 /* link the cq onto the parent eq child list */
15580 list_add_tail(&cq->list, &eq->child_list);
15581 /* Set up completion queue's type and subtype */
15583 cq->subtype = subtype;
15584 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
15585 cq->assoc_qid = eq->queue_id;
15587 cq->host_index = 0;
15588 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
15589 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, cq->entry_count);
15591 if (cq->queue_id > phba->sli4_hba.cq_max)
15592 phba->sli4_hba.cq_max = cq->queue_id;
15594 irq_poll_init(&cq->iop, LPFC_IRQ_POLL_WEIGHT, lpfc_cq_poll_hdler);
15596 mempool_free(mbox, phba->mbox_mem_pool);
15601 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
15602 * @phba: HBA structure that indicates port to create a queue on.
15603 * @cqp: The queue structure array to use to create the completion queues.
15604 * @hdwq: The hardware queue array with the EQ to bind completion queues to.
15605 * @type: Type of queue (EQ, GCQ, MCQ, WCQ, etc).
15606 * @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
15608 * This function creates a set of completion queue, s to support MRQ
15609 * as detailed in @cqp, on a port,
15610 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
15612 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15613 * is used to get the entry count and entry size that are necessary to
15614 * determine the number of pages to allocate and use for this queue. The @eq
15615 * is used to indicate which event queue to bind this completion queue to. This
15616 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
15617 * completion queue. This function is asynchronous and will wait for the mailbox
15618 * command to finish before continuing.
15620 * On success this function will return a zero. If unable to allocate enough
15621 * memory this function will return -ENOMEM. If the queue create mailbox command
15622 * fails this function will return -ENXIO.
15625 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
15626 struct lpfc_sli4_hdw_queue *hdwq, uint32_t type,
15629 struct lpfc_queue *cq;
15630 struct lpfc_queue *eq;
15631 struct lpfc_mbx_cq_create_set *cq_set;
15632 struct lpfc_dmabuf *dmabuf;
15633 LPFC_MBOXQ_t *mbox;
15634 int rc, length, alloclen, status = 0;
15635 int cnt, idx, numcq, page_idx = 0;
15636 uint32_t shdr_status, shdr_add_status;
15637 union lpfc_sli4_cfg_shdr *shdr;
15638 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15640 /* sanity check on queue memory */
15641 numcq = phba->cfg_nvmet_mrq;
15642 if (!cqp || !hdwq || !numcq)
15645 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15649 length = sizeof(struct lpfc_mbx_cq_create_set);
15650 length += ((numcq * cqp[0]->page_count) *
15651 sizeof(struct dma_address));
15652 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15653 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
15654 LPFC_SLI4_MBX_NEMBED);
15655 if (alloclen < length) {
15656 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15657 "3098 Allocated DMA memory size (%d) is "
15658 "less than the requested DMA memory size "
15659 "(%d)\n", alloclen, length);
15663 cq_set = mbox->sge_array->addr[0];
15664 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
15665 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
15667 for (idx = 0; idx < numcq; idx++) {
15669 eq = hdwq[idx].hba_eq;
15674 if (!phba->sli4_hba.pc_sli4_params.supported)
15675 hw_page_size = cq->page_size;
15679 bf_set(lpfc_mbx_cq_create_set_page_size,
15680 &cq_set->u.request,
15681 (hw_page_size / SLI4_PAGE_SIZE));
15682 bf_set(lpfc_mbx_cq_create_set_num_pages,
15683 &cq_set->u.request, cq->page_count);
15684 bf_set(lpfc_mbx_cq_create_set_evt,
15685 &cq_set->u.request, 1);
15686 bf_set(lpfc_mbx_cq_create_set_valid,
15687 &cq_set->u.request, 1);
15688 bf_set(lpfc_mbx_cq_create_set_cqe_size,
15689 &cq_set->u.request, 0);
15690 bf_set(lpfc_mbx_cq_create_set_num_cq,
15691 &cq_set->u.request, numcq);
15692 bf_set(lpfc_mbx_cq_create_set_autovalid,
15693 &cq_set->u.request,
15694 phba->sli4_hba.pc_sli4_params.cqav);
15695 switch (cq->entry_count) {
15698 if (phba->sli4_hba.pc_sli4_params.cqv ==
15699 LPFC_Q_CREATE_VERSION_2) {
15700 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15701 &cq_set->u.request,
15703 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15704 &cq_set->u.request,
15705 LPFC_CQ_CNT_WORD7);
15710 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15711 "3118 Bad CQ count. (%d)\n",
15713 if (cq->entry_count < 256) {
15717 fallthrough; /* otherwise default to smallest */
15719 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15720 &cq_set->u.request, LPFC_CQ_CNT_256);
15723 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15724 &cq_set->u.request, LPFC_CQ_CNT_512);
15727 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15728 &cq_set->u.request, LPFC_CQ_CNT_1024);
15731 bf_set(lpfc_mbx_cq_create_set_eq_id0,
15732 &cq_set->u.request, eq->queue_id);
15735 bf_set(lpfc_mbx_cq_create_set_eq_id1,
15736 &cq_set->u.request, eq->queue_id);
15739 bf_set(lpfc_mbx_cq_create_set_eq_id2,
15740 &cq_set->u.request, eq->queue_id);
15743 bf_set(lpfc_mbx_cq_create_set_eq_id3,
15744 &cq_set->u.request, eq->queue_id);
15747 bf_set(lpfc_mbx_cq_create_set_eq_id4,
15748 &cq_set->u.request, eq->queue_id);
15751 bf_set(lpfc_mbx_cq_create_set_eq_id5,
15752 &cq_set->u.request, eq->queue_id);
15755 bf_set(lpfc_mbx_cq_create_set_eq_id6,
15756 &cq_set->u.request, eq->queue_id);
15759 bf_set(lpfc_mbx_cq_create_set_eq_id7,
15760 &cq_set->u.request, eq->queue_id);
15763 bf_set(lpfc_mbx_cq_create_set_eq_id8,
15764 &cq_set->u.request, eq->queue_id);
15767 bf_set(lpfc_mbx_cq_create_set_eq_id9,
15768 &cq_set->u.request, eq->queue_id);
15771 bf_set(lpfc_mbx_cq_create_set_eq_id10,
15772 &cq_set->u.request, eq->queue_id);
15775 bf_set(lpfc_mbx_cq_create_set_eq_id11,
15776 &cq_set->u.request, eq->queue_id);
15779 bf_set(lpfc_mbx_cq_create_set_eq_id12,
15780 &cq_set->u.request, eq->queue_id);
15783 bf_set(lpfc_mbx_cq_create_set_eq_id13,
15784 &cq_set->u.request, eq->queue_id);
15787 bf_set(lpfc_mbx_cq_create_set_eq_id14,
15788 &cq_set->u.request, eq->queue_id);
15791 bf_set(lpfc_mbx_cq_create_set_eq_id15,
15792 &cq_set->u.request, eq->queue_id);
15796 /* link the cq onto the parent eq child list */
15797 list_add_tail(&cq->list, &eq->child_list);
15798 /* Set up completion queue's type and subtype */
15800 cq->subtype = subtype;
15801 cq->assoc_qid = eq->queue_id;
15803 cq->host_index = 0;
15804 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
15805 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
15810 list_for_each_entry(dmabuf, &cq->page_list, list) {
15811 memset(dmabuf->virt, 0, hw_page_size);
15812 cnt = page_idx + dmabuf->buffer_tag;
15813 cq_set->u.request.page[cnt].addr_lo =
15814 putPaddrLow(dmabuf->phys);
15815 cq_set->u.request.page[cnt].addr_hi =
15816 putPaddrHigh(dmabuf->phys);
15822 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15824 /* The IOCTL status is embedded in the mailbox subheader. */
15825 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15826 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15827 if (shdr_status || shdr_add_status || rc) {
15828 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15829 "3119 CQ_CREATE_SET mailbox failed with "
15830 "status x%x add_status x%x, mbx status x%x\n",
15831 shdr_status, shdr_add_status, rc);
15835 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
15836 if (rc == 0xFFFF) {
15841 for (idx = 0; idx < numcq; idx++) {
15843 cq->queue_id = rc + idx;
15844 if (cq->queue_id > phba->sli4_hba.cq_max)
15845 phba->sli4_hba.cq_max = cq->queue_id;
15849 lpfc_sli4_mbox_cmd_free(phba, mbox);
15854 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
15855 * @phba: HBA structure that indicates port to create a queue on.
15856 * @mq: The queue structure to use to create the mailbox queue.
15857 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
15858 * @cq: The completion queue to associate with this cq.
15860 * This function provides failback (fb) functionality when the
15861 * mq_create_ext fails on older FW generations. It's purpose is identical
15862 * to mq_create_ext otherwise.
15864 * This routine cannot fail as all attributes were previously accessed and
15865 * initialized in mq_create_ext.
15868 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
15869 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
15871 struct lpfc_mbx_mq_create *mq_create;
15872 struct lpfc_dmabuf *dmabuf;
15875 length = (sizeof(struct lpfc_mbx_mq_create) -
15876 sizeof(struct lpfc_sli4_cfg_mhdr));
15877 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15878 LPFC_MBOX_OPCODE_MQ_CREATE,
15879 length, LPFC_SLI4_MBX_EMBED);
15880 mq_create = &mbox->u.mqe.un.mq_create;
15881 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
15883 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
15885 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
15886 switch (mq->entry_count) {
15888 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15889 LPFC_MQ_RING_SIZE_16);
15892 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15893 LPFC_MQ_RING_SIZE_32);
15896 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15897 LPFC_MQ_RING_SIZE_64);
15900 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15901 LPFC_MQ_RING_SIZE_128);
15904 list_for_each_entry(dmabuf, &mq->page_list, list) {
15905 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15906 putPaddrLow(dmabuf->phys);
15907 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15908 putPaddrHigh(dmabuf->phys);
15913 * lpfc_mq_create - Create a mailbox Queue on the HBA
15914 * @phba: HBA structure that indicates port to create a queue on.
15915 * @mq: The queue structure to use to create the mailbox queue.
15916 * @cq: The completion queue to associate with this cq.
15917 * @subtype: The queue's subtype.
15919 * This function creates a mailbox queue, as detailed in @mq, on a port,
15920 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
15922 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15923 * is used to get the entry count and entry size that are necessary to
15924 * determine the number of pages to allocate and use for this queue. This
15925 * function will send the MQ_CREATE mailbox command to the HBA to setup the
15926 * mailbox queue. This function is asynchronous and will wait for the mailbox
15927 * command to finish before continuing.
15929 * On success this function will return a zero. If unable to allocate enough
15930 * memory this function will return -ENOMEM. If the queue create mailbox command
15931 * fails this function will return -ENXIO.
15934 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
15935 struct lpfc_queue *cq, uint32_t subtype)
15937 struct lpfc_mbx_mq_create *mq_create;
15938 struct lpfc_mbx_mq_create_ext *mq_create_ext;
15939 struct lpfc_dmabuf *dmabuf;
15940 LPFC_MBOXQ_t *mbox;
15941 int rc, length, status = 0;
15942 uint32_t shdr_status, shdr_add_status;
15943 union lpfc_sli4_cfg_shdr *shdr;
15944 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15946 /* sanity check on queue memory */
15949 if (!phba->sli4_hba.pc_sli4_params.supported)
15950 hw_page_size = SLI4_PAGE_SIZE;
15952 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15955 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
15956 sizeof(struct lpfc_sli4_cfg_mhdr));
15957 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15958 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
15959 length, LPFC_SLI4_MBX_EMBED);
15961 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
15962 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
15963 bf_set(lpfc_mbx_mq_create_ext_num_pages,
15964 &mq_create_ext->u.request, mq->page_count);
15965 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
15966 &mq_create_ext->u.request, 1);
15967 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
15968 &mq_create_ext->u.request, 1);
15969 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
15970 &mq_create_ext->u.request, 1);
15971 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
15972 &mq_create_ext->u.request, 1);
15973 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
15974 &mq_create_ext->u.request, 1);
15975 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
15976 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15977 phba->sli4_hba.pc_sli4_params.mqv);
15978 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
15979 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
15982 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
15984 switch (mq->entry_count) {
15986 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15987 "0362 Unsupported MQ count. (%d)\n",
15989 if (mq->entry_count < 16) {
15993 fallthrough; /* otherwise default to smallest count */
15995 bf_set(lpfc_mq_context_ring_size,
15996 &mq_create_ext->u.request.context,
15997 LPFC_MQ_RING_SIZE_16);
16000 bf_set(lpfc_mq_context_ring_size,
16001 &mq_create_ext->u.request.context,
16002 LPFC_MQ_RING_SIZE_32);
16005 bf_set(lpfc_mq_context_ring_size,
16006 &mq_create_ext->u.request.context,
16007 LPFC_MQ_RING_SIZE_64);
16010 bf_set(lpfc_mq_context_ring_size,
16011 &mq_create_ext->u.request.context,
16012 LPFC_MQ_RING_SIZE_128);
16015 list_for_each_entry(dmabuf, &mq->page_list, list) {
16016 memset(dmabuf->virt, 0, hw_page_size);
16017 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
16018 putPaddrLow(dmabuf->phys);
16019 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
16020 putPaddrHigh(dmabuf->phys);
16022 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16023 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
16024 &mq_create_ext->u.response);
16025 if (rc != MBX_SUCCESS) {
16026 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16027 "2795 MQ_CREATE_EXT failed with "
16028 "status x%x. Failback to MQ_CREATE.\n",
16030 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
16031 mq_create = &mbox->u.mqe.un.mq_create;
16032 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16033 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
16034 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
16035 &mq_create->u.response);
16038 /* The IOCTL status is embedded in the mailbox subheader. */
16039 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16040 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16041 if (shdr_status || shdr_add_status || rc) {
16042 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16043 "2502 MQ_CREATE mailbox failed with "
16044 "status x%x add_status x%x, mbx status x%x\n",
16045 shdr_status, shdr_add_status, rc);
16049 if (mq->queue_id == 0xFFFF) {
16053 mq->type = LPFC_MQ;
16054 mq->assoc_qid = cq->queue_id;
16055 mq->subtype = subtype;
16056 mq->host_index = 0;
16059 /* link the mq onto the parent cq child list */
16060 list_add_tail(&mq->list, &cq->child_list);
16062 mempool_free(mbox, phba->mbox_mem_pool);
16067 * lpfc_wq_create - Create a Work Queue on the HBA
16068 * @phba: HBA structure that indicates port to create a queue on.
16069 * @wq: The queue structure to use to create the work queue.
16070 * @cq: The completion queue to bind this work queue to.
16071 * @subtype: The subtype of the work queue indicating its functionality.
16073 * This function creates a work queue, as detailed in @wq, on a port, described
16074 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
16076 * The @phba struct is used to send mailbox command to HBA. The @wq struct
16077 * is used to get the entry count and entry size that are necessary to
16078 * determine the number of pages to allocate and use for this queue. The @cq
16079 * is used to indicate which completion queue to bind this work queue to. This
16080 * function will send the WQ_CREATE mailbox command to the HBA to setup the
16081 * work queue. This function is asynchronous and will wait for the mailbox
16082 * command to finish before continuing.
16084 * On success this function will return a zero. If unable to allocate enough
16085 * memory this function will return -ENOMEM. If the queue create mailbox command
16086 * fails this function will return -ENXIO.
16089 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
16090 struct lpfc_queue *cq, uint32_t subtype)
16092 struct lpfc_mbx_wq_create *wq_create;
16093 struct lpfc_dmabuf *dmabuf;
16094 LPFC_MBOXQ_t *mbox;
16095 int rc, length, status = 0;
16096 uint32_t shdr_status, shdr_add_status;
16097 union lpfc_sli4_cfg_shdr *shdr;
16098 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16099 struct dma_address *page;
16100 void __iomem *bar_memmap_p;
16101 uint32_t db_offset;
16102 uint16_t pci_barset;
16103 uint8_t dpp_barset;
16104 uint32_t dpp_offset;
16105 uint8_t wq_create_version;
16107 unsigned long pg_addr;
16110 /* sanity check on queue memory */
16113 if (!phba->sli4_hba.pc_sli4_params.supported)
16114 hw_page_size = wq->page_size;
16116 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16119 length = (sizeof(struct lpfc_mbx_wq_create) -
16120 sizeof(struct lpfc_sli4_cfg_mhdr));
16121 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16122 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
16123 length, LPFC_SLI4_MBX_EMBED);
16124 wq_create = &mbox->u.mqe.un.wq_create;
16125 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
16126 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
16128 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
16131 /* wqv is the earliest version supported, NOT the latest */
16132 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16133 phba->sli4_hba.pc_sli4_params.wqv);
16135 if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
16136 (wq->page_size > SLI4_PAGE_SIZE))
16137 wq_create_version = LPFC_Q_CREATE_VERSION_1;
16139 wq_create_version = LPFC_Q_CREATE_VERSION_0;
16141 switch (wq_create_version) {
16142 case LPFC_Q_CREATE_VERSION_1:
16143 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
16145 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16146 LPFC_Q_CREATE_VERSION_1);
16148 switch (wq->entry_size) {
16151 bf_set(lpfc_mbx_wq_create_wqe_size,
16152 &wq_create->u.request_1,
16153 LPFC_WQ_WQE_SIZE_64);
16156 bf_set(lpfc_mbx_wq_create_wqe_size,
16157 &wq_create->u.request_1,
16158 LPFC_WQ_WQE_SIZE_128);
16161 /* Request DPP by default */
16162 bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
16163 bf_set(lpfc_mbx_wq_create_page_size,
16164 &wq_create->u.request_1,
16165 (wq->page_size / SLI4_PAGE_SIZE));
16166 page = wq_create->u.request_1.page;
16169 page = wq_create->u.request.page;
16173 list_for_each_entry(dmabuf, &wq->page_list, list) {
16174 memset(dmabuf->virt, 0, hw_page_size);
16175 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
16176 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
16179 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
16180 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
16182 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16183 /* The IOCTL status is embedded in the mailbox subheader. */
16184 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16185 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16186 if (shdr_status || shdr_add_status || rc) {
16187 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16188 "2503 WQ_CREATE mailbox failed with "
16189 "status x%x add_status x%x, mbx status x%x\n",
16190 shdr_status, shdr_add_status, rc);
16195 if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
16196 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
16197 &wq_create->u.response);
16199 wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
16200 &wq_create->u.response_1);
16202 if (wq->queue_id == 0xFFFF) {
16207 wq->db_format = LPFC_DB_LIST_FORMAT;
16208 if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
16209 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
16210 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
16211 &wq_create->u.response);
16212 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
16213 (wq->db_format != LPFC_DB_RING_FORMAT)) {
16214 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16215 "3265 WQ[%d] doorbell format "
16216 "not supported: x%x\n",
16217 wq->queue_id, wq->db_format);
16221 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
16222 &wq_create->u.response);
16223 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
16225 if (!bar_memmap_p) {
16226 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16227 "3263 WQ[%d] failed to memmap "
16228 "pci barset:x%x\n",
16229 wq->queue_id, pci_barset);
16233 db_offset = wq_create->u.response.doorbell_offset;
16234 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
16235 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
16236 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16237 "3252 WQ[%d] doorbell offset "
16238 "not supported: x%x\n",
16239 wq->queue_id, db_offset);
16243 wq->db_regaddr = bar_memmap_p + db_offset;
16244 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16245 "3264 WQ[%d]: barset:x%x, offset:x%x, "
16246 "format:x%x\n", wq->queue_id,
16247 pci_barset, db_offset, wq->db_format);
16249 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
16251 /* Check if DPP was honored by the firmware */
16252 wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
16253 &wq_create->u.response_1);
16254 if (wq->dpp_enable) {
16255 pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
16256 &wq_create->u.response_1);
16257 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
16259 if (!bar_memmap_p) {
16260 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16261 "3267 WQ[%d] failed to memmap "
16262 "pci barset:x%x\n",
16263 wq->queue_id, pci_barset);
16267 db_offset = wq_create->u.response_1.doorbell_offset;
16268 wq->db_regaddr = bar_memmap_p + db_offset;
16269 wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
16270 &wq_create->u.response_1);
16271 dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
16272 &wq_create->u.response_1);
16273 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
16275 if (!bar_memmap_p) {
16276 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16277 "3268 WQ[%d] failed to memmap "
16278 "pci barset:x%x\n",
16279 wq->queue_id, dpp_barset);
16283 dpp_offset = wq_create->u.response_1.dpp_offset;
16284 wq->dpp_regaddr = bar_memmap_p + dpp_offset;
16285 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16286 "3271 WQ[%d]: barset:x%x, offset:x%x, "
16287 "dpp_id:x%x dpp_barset:x%x "
16288 "dpp_offset:x%x\n",
16289 wq->queue_id, pci_barset, db_offset,
16290 wq->dpp_id, dpp_barset, dpp_offset);
16293 /* Enable combined writes for DPP aperture */
16294 pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
16295 rc = set_memory_wc(pg_addr, 1);
16297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16298 "3272 Cannot setup Combined "
16299 "Write on WQ[%d] - disable DPP\n",
16301 phba->cfg_enable_dpp = 0;
16304 phba->cfg_enable_dpp = 0;
16307 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
16309 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
16310 if (wq->pring == NULL) {
16314 wq->type = LPFC_WQ;
16315 wq->assoc_qid = cq->queue_id;
16316 wq->subtype = subtype;
16317 wq->host_index = 0;
16319 wq->notify_interval = LPFC_WQ_NOTIFY_INTRVL;
16321 /* link the wq onto the parent cq child list */
16322 list_add_tail(&wq->list, &cq->child_list);
16324 mempool_free(mbox, phba->mbox_mem_pool);
16329 * lpfc_rq_create - Create a Receive Queue on the HBA
16330 * @phba: HBA structure that indicates port to create a queue on.
16331 * @hrq: The queue structure to use to create the header receive queue.
16332 * @drq: The queue structure to use to create the data receive queue.
16333 * @cq: The completion queue to bind this work queue to.
16334 * @subtype: The subtype of the work queue indicating its functionality.
16336 * This function creates a receive buffer queue pair , as detailed in @hrq and
16337 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
16340 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
16341 * struct is used to get the entry count that is necessary to determine the
16342 * number of pages to use for this queue. The @cq is used to indicate which
16343 * completion queue to bind received buffers that are posted to these queues to.
16344 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
16345 * receive queue pair. This function is asynchronous and will wait for the
16346 * mailbox command to finish before continuing.
16348 * On success this function will return a zero. If unable to allocate enough
16349 * memory this function will return -ENOMEM. If the queue create mailbox command
16350 * fails this function will return -ENXIO.
16353 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
16354 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
16356 struct lpfc_mbx_rq_create *rq_create;
16357 struct lpfc_dmabuf *dmabuf;
16358 LPFC_MBOXQ_t *mbox;
16359 int rc, length, status = 0;
16360 uint32_t shdr_status, shdr_add_status;
16361 union lpfc_sli4_cfg_shdr *shdr;
16362 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16363 void __iomem *bar_memmap_p;
16364 uint32_t db_offset;
16365 uint16_t pci_barset;
16367 /* sanity check on queue memory */
16368 if (!hrq || !drq || !cq)
16370 if (!phba->sli4_hba.pc_sli4_params.supported)
16371 hw_page_size = SLI4_PAGE_SIZE;
16373 if (hrq->entry_count != drq->entry_count)
16375 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16378 length = (sizeof(struct lpfc_mbx_rq_create) -
16379 sizeof(struct lpfc_sli4_cfg_mhdr));
16380 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16381 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
16382 length, LPFC_SLI4_MBX_EMBED);
16383 rq_create = &mbox->u.mqe.un.rq_create;
16384 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
16385 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16386 phba->sli4_hba.pc_sli4_params.rqv);
16387 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
16388 bf_set(lpfc_rq_context_rqe_count_1,
16389 &rq_create->u.request.context,
16391 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
16392 bf_set(lpfc_rq_context_rqe_size,
16393 &rq_create->u.request.context,
16395 bf_set(lpfc_rq_context_page_size,
16396 &rq_create->u.request.context,
16397 LPFC_RQ_PAGE_SIZE_4096);
16399 switch (hrq->entry_count) {
16401 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16402 "2535 Unsupported RQ count. (%d)\n",
16404 if (hrq->entry_count < 512) {
16408 fallthrough; /* otherwise default to smallest count */
16410 bf_set(lpfc_rq_context_rqe_count,
16411 &rq_create->u.request.context,
16412 LPFC_RQ_RING_SIZE_512);
16415 bf_set(lpfc_rq_context_rqe_count,
16416 &rq_create->u.request.context,
16417 LPFC_RQ_RING_SIZE_1024);
16420 bf_set(lpfc_rq_context_rqe_count,
16421 &rq_create->u.request.context,
16422 LPFC_RQ_RING_SIZE_2048);
16425 bf_set(lpfc_rq_context_rqe_count,
16426 &rq_create->u.request.context,
16427 LPFC_RQ_RING_SIZE_4096);
16430 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
16431 LPFC_HDR_BUF_SIZE);
16433 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
16435 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
16437 list_for_each_entry(dmabuf, &hrq->page_list, list) {
16438 memset(dmabuf->virt, 0, hw_page_size);
16439 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
16440 putPaddrLow(dmabuf->phys);
16441 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
16442 putPaddrHigh(dmabuf->phys);
16444 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
16445 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
16447 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16448 /* The IOCTL status is embedded in the mailbox subheader. */
16449 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16450 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16451 if (shdr_status || shdr_add_status || rc) {
16452 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16453 "2504 RQ_CREATE mailbox failed with "
16454 "status x%x add_status x%x, mbx status x%x\n",
16455 shdr_status, shdr_add_status, rc);
16459 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16460 if (hrq->queue_id == 0xFFFF) {
16465 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
16466 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
16467 &rq_create->u.response);
16468 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
16469 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
16470 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16471 "3262 RQ [%d] doorbell format not "
16472 "supported: x%x\n", hrq->queue_id,
16478 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
16479 &rq_create->u.response);
16480 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
16481 if (!bar_memmap_p) {
16482 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16483 "3269 RQ[%d] failed to memmap pci "
16484 "barset:x%x\n", hrq->queue_id,
16490 db_offset = rq_create->u.response.doorbell_offset;
16491 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
16492 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
16493 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16494 "3270 RQ[%d] doorbell offset not "
16495 "supported: x%x\n", hrq->queue_id,
16500 hrq->db_regaddr = bar_memmap_p + db_offset;
16501 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16502 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
16503 "format:x%x\n", hrq->queue_id, pci_barset,
16504 db_offset, hrq->db_format);
16506 hrq->db_format = LPFC_DB_RING_FORMAT;
16507 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16509 hrq->type = LPFC_HRQ;
16510 hrq->assoc_qid = cq->queue_id;
16511 hrq->subtype = subtype;
16512 hrq->host_index = 0;
16513 hrq->hba_index = 0;
16514 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16516 /* now create the data queue */
16517 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16518 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
16519 length, LPFC_SLI4_MBX_EMBED);
16520 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16521 phba->sli4_hba.pc_sli4_params.rqv);
16522 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
16523 bf_set(lpfc_rq_context_rqe_count_1,
16524 &rq_create->u.request.context, hrq->entry_count);
16525 if (subtype == LPFC_NVMET)
16526 rq_create->u.request.context.buffer_size =
16527 LPFC_NVMET_DATA_BUF_SIZE;
16529 rq_create->u.request.context.buffer_size =
16530 LPFC_DATA_BUF_SIZE;
16531 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
16533 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
16534 (PAGE_SIZE/SLI4_PAGE_SIZE));
16536 switch (drq->entry_count) {
16538 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16539 "2536 Unsupported RQ count. (%d)\n",
16541 if (drq->entry_count < 512) {
16545 fallthrough; /* otherwise default to smallest count */
16547 bf_set(lpfc_rq_context_rqe_count,
16548 &rq_create->u.request.context,
16549 LPFC_RQ_RING_SIZE_512);
16552 bf_set(lpfc_rq_context_rqe_count,
16553 &rq_create->u.request.context,
16554 LPFC_RQ_RING_SIZE_1024);
16557 bf_set(lpfc_rq_context_rqe_count,
16558 &rq_create->u.request.context,
16559 LPFC_RQ_RING_SIZE_2048);
16562 bf_set(lpfc_rq_context_rqe_count,
16563 &rq_create->u.request.context,
16564 LPFC_RQ_RING_SIZE_4096);
16567 if (subtype == LPFC_NVMET)
16568 bf_set(lpfc_rq_context_buf_size,
16569 &rq_create->u.request.context,
16570 LPFC_NVMET_DATA_BUF_SIZE);
16572 bf_set(lpfc_rq_context_buf_size,
16573 &rq_create->u.request.context,
16574 LPFC_DATA_BUF_SIZE);
16576 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
16578 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
16580 list_for_each_entry(dmabuf, &drq->page_list, list) {
16581 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
16582 putPaddrLow(dmabuf->phys);
16583 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
16584 putPaddrHigh(dmabuf->phys);
16586 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
16587 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
16588 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16589 /* The IOCTL status is embedded in the mailbox subheader. */
16590 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
16591 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16592 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16593 if (shdr_status || shdr_add_status || rc) {
16597 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16598 if (drq->queue_id == 0xFFFF) {
16602 drq->type = LPFC_DRQ;
16603 drq->assoc_qid = cq->queue_id;
16604 drq->subtype = subtype;
16605 drq->host_index = 0;
16606 drq->hba_index = 0;
16607 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16609 /* link the header and data RQs onto the parent cq child list */
16610 list_add_tail(&hrq->list, &cq->child_list);
16611 list_add_tail(&drq->list, &cq->child_list);
16614 mempool_free(mbox, phba->mbox_mem_pool);
16619 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
16620 * @phba: HBA structure that indicates port to create a queue on.
16621 * @hrqp: The queue structure array to use to create the header receive queues.
16622 * @drqp: The queue structure array to use to create the data receive queues.
16623 * @cqp: The completion queue array to bind these receive queues to.
16624 * @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
16626 * This function creates a receive buffer queue pair , as detailed in @hrq and
16627 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
16630 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
16631 * struct is used to get the entry count that is necessary to determine the
16632 * number of pages to use for this queue. The @cq is used to indicate which
16633 * completion queue to bind received buffers that are posted to these queues to.
16634 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
16635 * receive queue pair. This function is asynchronous and will wait for the
16636 * mailbox command to finish before continuing.
16638 * On success this function will return a zero. If unable to allocate enough
16639 * memory this function will return -ENOMEM. If the queue create mailbox command
16640 * fails this function will return -ENXIO.
16643 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
16644 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
16647 struct lpfc_queue *hrq, *drq, *cq;
16648 struct lpfc_mbx_rq_create_v2 *rq_create;
16649 struct lpfc_dmabuf *dmabuf;
16650 LPFC_MBOXQ_t *mbox;
16651 int rc, length, alloclen, status = 0;
16652 int cnt, idx, numrq, page_idx = 0;
16653 uint32_t shdr_status, shdr_add_status;
16654 union lpfc_sli4_cfg_shdr *shdr;
16655 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16657 numrq = phba->cfg_nvmet_mrq;
16658 /* sanity check on array memory */
16659 if (!hrqp || !drqp || !cqp || !numrq)
16661 if (!phba->sli4_hba.pc_sli4_params.supported)
16662 hw_page_size = SLI4_PAGE_SIZE;
16664 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16668 length = sizeof(struct lpfc_mbx_rq_create_v2);
16669 length += ((2 * numrq * hrqp[0]->page_count) *
16670 sizeof(struct dma_address));
16672 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16673 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
16674 LPFC_SLI4_MBX_NEMBED);
16675 if (alloclen < length) {
16676 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16677 "3099 Allocated DMA memory size (%d) is "
16678 "less than the requested DMA memory size "
16679 "(%d)\n", alloclen, length);
16686 rq_create = mbox->sge_array->addr[0];
16687 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
16689 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
16692 for (idx = 0; idx < numrq; idx++) {
16697 /* sanity check on queue memory */
16698 if (!hrq || !drq || !cq) {
16703 if (hrq->entry_count != drq->entry_count) {
16709 bf_set(lpfc_mbx_rq_create_num_pages,
16710 &rq_create->u.request,
16712 bf_set(lpfc_mbx_rq_create_rq_cnt,
16713 &rq_create->u.request, (numrq * 2));
16714 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
16716 bf_set(lpfc_rq_context_base_cq,
16717 &rq_create->u.request.context,
16719 bf_set(lpfc_rq_context_data_size,
16720 &rq_create->u.request.context,
16721 LPFC_NVMET_DATA_BUF_SIZE);
16722 bf_set(lpfc_rq_context_hdr_size,
16723 &rq_create->u.request.context,
16724 LPFC_HDR_BUF_SIZE);
16725 bf_set(lpfc_rq_context_rqe_count_1,
16726 &rq_create->u.request.context,
16728 bf_set(lpfc_rq_context_rqe_size,
16729 &rq_create->u.request.context,
16731 bf_set(lpfc_rq_context_page_size,
16732 &rq_create->u.request.context,
16733 (PAGE_SIZE/SLI4_PAGE_SIZE));
16736 list_for_each_entry(dmabuf, &hrq->page_list, list) {
16737 memset(dmabuf->virt, 0, hw_page_size);
16738 cnt = page_idx + dmabuf->buffer_tag;
16739 rq_create->u.request.page[cnt].addr_lo =
16740 putPaddrLow(dmabuf->phys);
16741 rq_create->u.request.page[cnt].addr_hi =
16742 putPaddrHigh(dmabuf->phys);
16748 list_for_each_entry(dmabuf, &drq->page_list, list) {
16749 memset(dmabuf->virt, 0, hw_page_size);
16750 cnt = page_idx + dmabuf->buffer_tag;
16751 rq_create->u.request.page[cnt].addr_lo =
16752 putPaddrLow(dmabuf->phys);
16753 rq_create->u.request.page[cnt].addr_hi =
16754 putPaddrHigh(dmabuf->phys);
16759 hrq->db_format = LPFC_DB_RING_FORMAT;
16760 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16761 hrq->type = LPFC_HRQ;
16762 hrq->assoc_qid = cq->queue_id;
16763 hrq->subtype = subtype;
16764 hrq->host_index = 0;
16765 hrq->hba_index = 0;
16766 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16768 drq->db_format = LPFC_DB_RING_FORMAT;
16769 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16770 drq->type = LPFC_DRQ;
16771 drq->assoc_qid = cq->queue_id;
16772 drq->subtype = subtype;
16773 drq->host_index = 0;
16774 drq->hba_index = 0;
16775 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16777 list_add_tail(&hrq->list, &cq->child_list);
16778 list_add_tail(&drq->list, &cq->child_list);
16781 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16782 /* The IOCTL status is embedded in the mailbox subheader. */
16783 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16784 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16785 if (shdr_status || shdr_add_status || rc) {
16786 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16787 "3120 RQ_CREATE mailbox failed with "
16788 "status x%x add_status x%x, mbx status x%x\n",
16789 shdr_status, shdr_add_status, rc);
16793 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16794 if (rc == 0xFFFF) {
16799 /* Initialize all RQs with associated queue id */
16800 for (idx = 0; idx < numrq; idx++) {
16802 hrq->queue_id = rc + (2 * idx);
16804 drq->queue_id = rc + (2 * idx) + 1;
16808 lpfc_sli4_mbox_cmd_free(phba, mbox);
16813 * lpfc_eq_destroy - Destroy an event Queue on the HBA
16814 * @phba: HBA structure that indicates port to destroy a queue on.
16815 * @eq: The queue structure associated with the queue to destroy.
16817 * This function destroys a queue, as detailed in @eq by sending an mailbox
16818 * command, specific to the type of queue, to the HBA.
16820 * The @eq struct is used to get the queue ID of the queue to destroy.
16822 * On success this function will return a zero. If the queue destroy mailbox
16823 * command fails this function will return -ENXIO.
16826 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
16828 LPFC_MBOXQ_t *mbox;
16829 int rc, length, status = 0;
16830 uint32_t shdr_status, shdr_add_status;
16831 union lpfc_sli4_cfg_shdr *shdr;
16833 /* sanity check on queue memory */
16837 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
16840 length = (sizeof(struct lpfc_mbx_eq_destroy) -
16841 sizeof(struct lpfc_sli4_cfg_mhdr));
16842 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16843 LPFC_MBOX_OPCODE_EQ_DESTROY,
16844 length, LPFC_SLI4_MBX_EMBED);
16845 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
16847 mbox->vport = eq->phba->pport;
16848 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16850 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
16851 /* The IOCTL status is embedded in the mailbox subheader. */
16852 shdr = (union lpfc_sli4_cfg_shdr *)
16853 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
16854 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16855 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16856 if (shdr_status || shdr_add_status || rc) {
16857 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16858 "2505 EQ_DESTROY mailbox failed with "
16859 "status x%x add_status x%x, mbx status x%x\n",
16860 shdr_status, shdr_add_status, rc);
16864 /* Remove eq from any list */
16865 list_del_init(&eq->list);
16866 mempool_free(mbox, eq->phba->mbox_mem_pool);
16871 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
16872 * @phba: HBA structure that indicates port to destroy a queue on.
16873 * @cq: The queue structure associated with the queue to destroy.
16875 * This function destroys a queue, as detailed in @cq by sending an mailbox
16876 * command, specific to the type of queue, to the HBA.
16878 * The @cq struct is used to get the queue ID of the queue to destroy.
16880 * On success this function will return a zero. If the queue destroy mailbox
16881 * command fails this function will return -ENXIO.
16884 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
16886 LPFC_MBOXQ_t *mbox;
16887 int rc, length, status = 0;
16888 uint32_t shdr_status, shdr_add_status;
16889 union lpfc_sli4_cfg_shdr *shdr;
16891 /* sanity check on queue memory */
16894 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
16897 length = (sizeof(struct lpfc_mbx_cq_destroy) -
16898 sizeof(struct lpfc_sli4_cfg_mhdr));
16899 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16900 LPFC_MBOX_OPCODE_CQ_DESTROY,
16901 length, LPFC_SLI4_MBX_EMBED);
16902 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
16904 mbox->vport = cq->phba->pport;
16905 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16906 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
16907 /* The IOCTL status is embedded in the mailbox subheader. */
16908 shdr = (union lpfc_sli4_cfg_shdr *)
16909 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
16910 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16911 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16912 if (shdr_status || shdr_add_status || rc) {
16913 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16914 "2506 CQ_DESTROY mailbox failed with "
16915 "status x%x add_status x%x, mbx status x%x\n",
16916 shdr_status, shdr_add_status, rc);
16919 /* Remove cq from any list */
16920 list_del_init(&cq->list);
16921 mempool_free(mbox, cq->phba->mbox_mem_pool);
16926 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
16927 * @phba: HBA structure that indicates port to destroy a queue on.
16928 * @mq: The queue structure associated with the queue to destroy.
16930 * This function destroys a queue, as detailed in @mq by sending an mailbox
16931 * command, specific to the type of queue, to the HBA.
16933 * The @mq struct is used to get the queue ID of the queue to destroy.
16935 * On success this function will return a zero. If the queue destroy mailbox
16936 * command fails this function will return -ENXIO.
16939 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
16941 LPFC_MBOXQ_t *mbox;
16942 int rc, length, status = 0;
16943 uint32_t shdr_status, shdr_add_status;
16944 union lpfc_sli4_cfg_shdr *shdr;
16946 /* sanity check on queue memory */
16949 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
16952 length = (sizeof(struct lpfc_mbx_mq_destroy) -
16953 sizeof(struct lpfc_sli4_cfg_mhdr));
16954 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16955 LPFC_MBOX_OPCODE_MQ_DESTROY,
16956 length, LPFC_SLI4_MBX_EMBED);
16957 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
16959 mbox->vport = mq->phba->pport;
16960 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16961 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
16962 /* The IOCTL status is embedded in the mailbox subheader. */
16963 shdr = (union lpfc_sli4_cfg_shdr *)
16964 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
16965 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16966 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16967 if (shdr_status || shdr_add_status || rc) {
16968 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16969 "2507 MQ_DESTROY mailbox failed with "
16970 "status x%x add_status x%x, mbx status x%x\n",
16971 shdr_status, shdr_add_status, rc);
16974 /* Remove mq from any list */
16975 list_del_init(&mq->list);
16976 mempool_free(mbox, mq->phba->mbox_mem_pool);
16981 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
16982 * @phba: HBA structure that indicates port to destroy a queue on.
16983 * @wq: The queue structure associated with the queue to destroy.
16985 * This function destroys a queue, as detailed in @wq by sending an mailbox
16986 * command, specific to the type of queue, to the HBA.
16988 * The @wq struct is used to get the queue ID of the queue to destroy.
16990 * On success this function will return a zero. If the queue destroy mailbox
16991 * command fails this function will return -ENXIO.
16994 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
16996 LPFC_MBOXQ_t *mbox;
16997 int rc, length, status = 0;
16998 uint32_t shdr_status, shdr_add_status;
16999 union lpfc_sli4_cfg_shdr *shdr;
17001 /* sanity check on queue memory */
17004 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
17007 length = (sizeof(struct lpfc_mbx_wq_destroy) -
17008 sizeof(struct lpfc_sli4_cfg_mhdr));
17009 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17010 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
17011 length, LPFC_SLI4_MBX_EMBED);
17012 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
17014 mbox->vport = wq->phba->pport;
17015 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17016 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
17017 shdr = (union lpfc_sli4_cfg_shdr *)
17018 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
17019 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17020 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17021 if (shdr_status || shdr_add_status || rc) {
17022 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17023 "2508 WQ_DESTROY mailbox failed with "
17024 "status x%x add_status x%x, mbx status x%x\n",
17025 shdr_status, shdr_add_status, rc);
17028 /* Remove wq from any list */
17029 list_del_init(&wq->list);
17032 mempool_free(mbox, wq->phba->mbox_mem_pool);
17037 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
17038 * @phba: HBA structure that indicates port to destroy a queue on.
17039 * @hrq: The queue structure associated with the queue to destroy.
17040 * @drq: The queue structure associated with the queue to destroy.
17042 * This function destroys a queue, as detailed in @rq by sending an mailbox
17043 * command, specific to the type of queue, to the HBA.
17045 * The @rq struct is used to get the queue ID of the queue to destroy.
17047 * On success this function will return a zero. If the queue destroy mailbox
17048 * command fails this function will return -ENXIO.
17051 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
17052 struct lpfc_queue *drq)
17054 LPFC_MBOXQ_t *mbox;
17055 int rc, length, status = 0;
17056 uint32_t shdr_status, shdr_add_status;
17057 union lpfc_sli4_cfg_shdr *shdr;
17059 /* sanity check on queue memory */
17062 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
17065 length = (sizeof(struct lpfc_mbx_rq_destroy) -
17066 sizeof(struct lpfc_sli4_cfg_mhdr));
17067 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17068 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
17069 length, LPFC_SLI4_MBX_EMBED);
17070 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
17072 mbox->vport = hrq->phba->pport;
17073 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17074 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
17075 /* The IOCTL status is embedded in the mailbox subheader. */
17076 shdr = (union lpfc_sli4_cfg_shdr *)
17077 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
17078 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17079 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17080 if (shdr_status || shdr_add_status || rc) {
17081 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17082 "2509 RQ_DESTROY mailbox failed with "
17083 "status x%x add_status x%x, mbx status x%x\n",
17084 shdr_status, shdr_add_status, rc);
17085 mempool_free(mbox, hrq->phba->mbox_mem_pool);
17088 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
17090 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
17091 shdr = (union lpfc_sli4_cfg_shdr *)
17092 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
17093 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17094 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17095 if (shdr_status || shdr_add_status || rc) {
17096 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17097 "2510 RQ_DESTROY mailbox failed with "
17098 "status x%x add_status x%x, mbx status x%x\n",
17099 shdr_status, shdr_add_status, rc);
17102 list_del_init(&hrq->list);
17103 list_del_init(&drq->list);
17104 mempool_free(mbox, hrq->phba->mbox_mem_pool);
17109 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
17110 * @phba: The virtual port for which this call being executed.
17111 * @pdma_phys_addr0: Physical address of the 1st SGL page.
17112 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
17113 * @xritag: the xritag that ties this io to the SGL pages.
17115 * This routine will post the sgl pages for the IO that has the xritag
17116 * that is in the iocbq structure. The xritag is assigned during iocbq
17117 * creation and persists for as long as the driver is loaded.
17118 * if the caller has fewer than 256 scatter gather segments to map then
17119 * pdma_phys_addr1 should be 0.
17120 * If the caller needs to map more than 256 scatter gather segment then
17121 * pdma_phys_addr1 should be a valid physical address.
17122 * physical address for SGLs must be 64 byte aligned.
17123 * If you are going to map 2 SGL's then the first one must have 256 entries
17124 * the second sgl can have between 1 and 256 entries.
17128 * -ENXIO, -ENOMEM - Failure
17131 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
17132 dma_addr_t pdma_phys_addr0,
17133 dma_addr_t pdma_phys_addr1,
17136 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
17137 LPFC_MBOXQ_t *mbox;
17139 uint32_t shdr_status, shdr_add_status;
17141 union lpfc_sli4_cfg_shdr *shdr;
17143 if (xritag == NO_XRI) {
17144 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17145 "0364 Invalid param:\n");
17149 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17153 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17154 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
17155 sizeof(struct lpfc_mbx_post_sgl_pages) -
17156 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
17158 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
17159 &mbox->u.mqe.un.post_sgl_pages;
17160 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
17161 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
17163 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
17164 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
17165 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
17166 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
17168 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
17169 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
17170 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
17171 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
17172 if (!phba->sli4_hba.intr_enable)
17173 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17175 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
17176 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
17178 /* The IOCTL status is embedded in the mailbox subheader. */
17179 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
17180 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17181 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17182 if (!phba->sli4_hba.intr_enable)
17183 mempool_free(mbox, phba->mbox_mem_pool);
17184 else if (rc != MBX_TIMEOUT)
17185 mempool_free(mbox, phba->mbox_mem_pool);
17186 if (shdr_status || shdr_add_status || rc) {
17187 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17188 "2511 POST_SGL mailbox failed with "
17189 "status x%x add_status x%x, mbx status x%x\n",
17190 shdr_status, shdr_add_status, rc);
17196 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
17197 * @phba: pointer to lpfc hba data structure.
17199 * This routine is invoked to post rpi header templates to the
17200 * HBA consistent with the SLI-4 interface spec. This routine
17201 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17202 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17205 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
17206 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
17209 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
17214 * Fetch the next logical xri. Because this index is logical,
17215 * the driver starts at 0 each time.
17217 spin_lock_irq(&phba->hbalock);
17218 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
17219 phba->sli4_hba.max_cfg_param.max_xri, 0);
17220 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
17221 spin_unlock_irq(&phba->hbalock);
17224 set_bit(xri, phba->sli4_hba.xri_bmask);
17225 phba->sli4_hba.max_cfg_param.xri_used++;
17227 spin_unlock_irq(&phba->hbalock);
17232 * __lpfc_sli4_free_xri - Release an xri for reuse.
17233 * @phba: pointer to lpfc hba data structure.
17234 * @xri: xri to release.
17236 * This routine is invoked to release an xri to the pool of
17237 * available rpis maintained by the driver.
17240 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
17242 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
17243 phba->sli4_hba.max_cfg_param.xri_used--;
17248 * lpfc_sli4_free_xri - Release an xri for reuse.
17249 * @phba: pointer to lpfc hba data structure.
17250 * @xri: xri to release.
17252 * This routine is invoked to release an xri to the pool of
17253 * available rpis maintained by the driver.
17256 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
17258 spin_lock_irq(&phba->hbalock);
17259 __lpfc_sli4_free_xri(phba, xri);
17260 spin_unlock_irq(&phba->hbalock);
17264 * lpfc_sli4_next_xritag - Get an xritag for the io
17265 * @phba: Pointer to HBA context object.
17267 * This function gets an xritag for the iocb. If there is no unused xritag
17268 * it will return 0xffff.
17269 * The function returns the allocated xritag if successful, else returns zero.
17270 * Zero is not a valid xritag.
17271 * The caller is not required to hold any lock.
17274 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
17276 uint16_t xri_index;
17278 xri_index = lpfc_sli4_alloc_xri(phba);
17279 if (xri_index == NO_XRI)
17280 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
17281 "2004 Failed to allocate XRI.last XRITAG is %d"
17282 " Max XRI is %d, Used XRI is %d\n",
17284 phba->sli4_hba.max_cfg_param.max_xri,
17285 phba->sli4_hba.max_cfg_param.xri_used);
17290 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
17291 * @phba: pointer to lpfc hba data structure.
17292 * @post_sgl_list: pointer to els sgl entry list.
17293 * @post_cnt: number of els sgl entries on the list.
17295 * This routine is invoked to post a block of driver's sgl pages to the
17296 * HBA using non-embedded mailbox command. No Lock is held. This routine
17297 * is only called when the driver is loading and after all IO has been
17301 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
17302 struct list_head *post_sgl_list,
17305 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
17306 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
17307 struct sgl_page_pairs *sgl_pg_pairs;
17309 LPFC_MBOXQ_t *mbox;
17310 uint32_t reqlen, alloclen, pg_pairs;
17312 uint16_t xritag_start = 0;
17314 uint32_t shdr_status, shdr_add_status;
17315 union lpfc_sli4_cfg_shdr *shdr;
17317 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
17318 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
17319 if (reqlen > SLI4_PAGE_SIZE) {
17320 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17321 "2559 Block sgl registration required DMA "
17322 "size (%d) great than a page\n", reqlen);
17326 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17330 /* Allocate DMA memory and set up the non-embedded mailbox command */
17331 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17332 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
17333 LPFC_SLI4_MBX_NEMBED);
17335 if (alloclen < reqlen) {
17336 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17337 "0285 Allocated DMA memory size (%d) is "
17338 "less than the requested DMA memory "
17339 "size (%d)\n", alloclen, reqlen);
17340 lpfc_sli4_mbox_cmd_free(phba, mbox);
17343 /* Set up the SGL pages in the non-embedded DMA pages */
17344 viraddr = mbox->sge_array->addr[0];
17345 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
17346 sgl_pg_pairs = &sgl->sgl_pg_pairs;
17349 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
17350 /* Set up the sge entry */
17351 sgl_pg_pairs->sgl_pg0_addr_lo =
17352 cpu_to_le32(putPaddrLow(sglq_entry->phys));
17353 sgl_pg_pairs->sgl_pg0_addr_hi =
17354 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
17355 sgl_pg_pairs->sgl_pg1_addr_lo =
17356 cpu_to_le32(putPaddrLow(0));
17357 sgl_pg_pairs->sgl_pg1_addr_hi =
17358 cpu_to_le32(putPaddrHigh(0));
17360 /* Keep the first xritag on the list */
17362 xritag_start = sglq_entry->sli4_xritag;
17367 /* Complete initialization and perform endian conversion. */
17368 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
17369 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
17370 sgl->word0 = cpu_to_le32(sgl->word0);
17372 if (!phba->sli4_hba.intr_enable)
17373 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17375 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
17376 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
17378 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
17379 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17380 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17381 if (!phba->sli4_hba.intr_enable)
17382 lpfc_sli4_mbox_cmd_free(phba, mbox);
17383 else if (rc != MBX_TIMEOUT)
17384 lpfc_sli4_mbox_cmd_free(phba, mbox);
17385 if (shdr_status || shdr_add_status || rc) {
17386 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17387 "2513 POST_SGL_BLOCK mailbox command failed "
17388 "status x%x add_status x%x mbx status x%x\n",
17389 shdr_status, shdr_add_status, rc);
17396 * lpfc_sli4_post_io_sgl_block - post a block of nvme sgl list to firmware
17397 * @phba: pointer to lpfc hba data structure.
17398 * @nblist: pointer to nvme buffer list.
17399 * @count: number of scsi buffers on the list.
17401 * This routine is invoked to post a block of @count scsi sgl pages from a
17402 * SCSI buffer list @nblist to the HBA using non-embedded mailbox command.
17407 lpfc_sli4_post_io_sgl_block(struct lpfc_hba *phba, struct list_head *nblist,
17410 struct lpfc_io_buf *lpfc_ncmd;
17411 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
17412 struct sgl_page_pairs *sgl_pg_pairs;
17414 LPFC_MBOXQ_t *mbox;
17415 uint32_t reqlen, alloclen, pg_pairs;
17417 uint16_t xritag_start = 0;
17419 uint32_t shdr_status, shdr_add_status;
17420 dma_addr_t pdma_phys_bpl1;
17421 union lpfc_sli4_cfg_shdr *shdr;
17423 /* Calculate the requested length of the dma memory */
17424 reqlen = count * sizeof(struct sgl_page_pairs) +
17425 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
17426 if (reqlen > SLI4_PAGE_SIZE) {
17427 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
17428 "6118 Block sgl registration required DMA "
17429 "size (%d) great than a page\n", reqlen);
17432 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17434 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17435 "6119 Failed to allocate mbox cmd memory\n");
17439 /* Allocate DMA memory and set up the non-embedded mailbox command */
17440 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17441 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
17442 reqlen, LPFC_SLI4_MBX_NEMBED);
17444 if (alloclen < reqlen) {
17445 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17446 "6120 Allocated DMA memory size (%d) is "
17447 "less than the requested DMA memory "
17448 "size (%d)\n", alloclen, reqlen);
17449 lpfc_sli4_mbox_cmd_free(phba, mbox);
17453 /* Get the first SGE entry from the non-embedded DMA memory */
17454 viraddr = mbox->sge_array->addr[0];
17456 /* Set up the SGL pages in the non-embedded DMA pages */
17457 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
17458 sgl_pg_pairs = &sgl->sgl_pg_pairs;
17461 list_for_each_entry(lpfc_ncmd, nblist, list) {
17462 /* Set up the sge entry */
17463 sgl_pg_pairs->sgl_pg0_addr_lo =
17464 cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl));
17465 sgl_pg_pairs->sgl_pg0_addr_hi =
17466 cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl));
17467 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
17468 pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl +
17471 pdma_phys_bpl1 = 0;
17472 sgl_pg_pairs->sgl_pg1_addr_lo =
17473 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
17474 sgl_pg_pairs->sgl_pg1_addr_hi =
17475 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
17476 /* Keep the first xritag on the list */
17478 xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag;
17482 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
17483 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
17484 /* Perform endian conversion if necessary */
17485 sgl->word0 = cpu_to_le32(sgl->word0);
17487 if (!phba->sli4_hba.intr_enable) {
17488 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17490 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
17491 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
17493 shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr;
17494 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17495 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17496 if (!phba->sli4_hba.intr_enable)
17497 lpfc_sli4_mbox_cmd_free(phba, mbox);
17498 else if (rc != MBX_TIMEOUT)
17499 lpfc_sli4_mbox_cmd_free(phba, mbox);
17500 if (shdr_status || shdr_add_status || rc) {
17501 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17502 "6125 POST_SGL_BLOCK mailbox command failed "
17503 "status x%x add_status x%x mbx status x%x\n",
17504 shdr_status, shdr_add_status, rc);
17511 * lpfc_sli4_post_io_sgl_list - Post blocks of nvme buffer sgls from a list
17512 * @phba: pointer to lpfc hba data structure.
17513 * @post_nblist: pointer to the nvme buffer list.
17514 * @sb_count: number of nvme buffers.
17516 * This routine walks a list of nvme buffers that was passed in. It attempts
17517 * to construct blocks of nvme buffer sgls which contains contiguous xris and
17518 * uses the non-embedded SGL block post mailbox commands to post to the port.
17519 * For single NVME buffer sgl with non-contiguous xri, if any, it shall use
17520 * embedded SGL post mailbox command for posting. The @post_nblist passed in
17521 * must be local list, thus no lock is needed when manipulate the list.
17523 * Returns: 0 = failure, non-zero number of successfully posted buffers.
17526 lpfc_sli4_post_io_sgl_list(struct lpfc_hba *phba,
17527 struct list_head *post_nblist, int sb_count)
17529 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
17530 int status, sgl_size;
17531 int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0;
17532 dma_addr_t pdma_phys_sgl1;
17533 int last_xritag = NO_XRI;
17535 LIST_HEAD(prep_nblist);
17536 LIST_HEAD(blck_nblist);
17537 LIST_HEAD(nvme_nblist);
17543 sgl_size = phba->cfg_sg_dma_buf_size;
17544 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) {
17545 list_del_init(&lpfc_ncmd->list);
17547 if ((last_xritag != NO_XRI) &&
17548 (lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) {
17549 /* a hole in xri block, form a sgl posting block */
17550 list_splice_init(&prep_nblist, &blck_nblist);
17551 post_cnt = block_cnt - 1;
17552 /* prepare list for next posting block */
17553 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
17556 /* prepare list for next posting block */
17557 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
17558 /* enough sgls for non-embed sgl mbox command */
17559 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
17560 list_splice_init(&prep_nblist, &blck_nblist);
17561 post_cnt = block_cnt;
17566 last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
17568 /* end of repost sgl list condition for NVME buffers */
17569 if (num_posting == sb_count) {
17570 if (post_cnt == 0) {
17571 /* last sgl posting block */
17572 list_splice_init(&prep_nblist, &blck_nblist);
17573 post_cnt = block_cnt;
17574 } else if (block_cnt == 1) {
17575 /* last single sgl with non-contiguous xri */
17576 if (sgl_size > SGL_PAGE_SIZE)
17578 lpfc_ncmd->dma_phys_sgl +
17581 pdma_phys_sgl1 = 0;
17582 cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
17583 status = lpfc_sli4_post_sgl(
17584 phba, lpfc_ncmd->dma_phys_sgl,
17585 pdma_phys_sgl1, cur_xritag);
17587 /* Post error. Buffer unavailable. */
17588 lpfc_ncmd->flags |=
17589 LPFC_SBUF_NOT_POSTED;
17591 /* Post success. Bffer available. */
17592 lpfc_ncmd->flags &=
17593 ~LPFC_SBUF_NOT_POSTED;
17594 lpfc_ncmd->status = IOSTAT_SUCCESS;
17597 /* success, put on NVME buffer sgl list */
17598 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
17602 /* continue until a nembed page worth of sgls */
17606 /* post block of NVME buffer list sgls */
17607 status = lpfc_sli4_post_io_sgl_block(phba, &blck_nblist,
17610 /* don't reset xirtag due to hole in xri block */
17611 if (block_cnt == 0)
17612 last_xritag = NO_XRI;
17614 /* reset NVME buffer post count for next round of posting */
17617 /* put posted NVME buffer-sgl posted on NVME buffer sgl list */
17618 while (!list_empty(&blck_nblist)) {
17619 list_remove_head(&blck_nblist, lpfc_ncmd,
17620 struct lpfc_io_buf, list);
17622 /* Post error. Mark buffer unavailable. */
17623 lpfc_ncmd->flags |= LPFC_SBUF_NOT_POSTED;
17625 /* Post success, Mark buffer available. */
17626 lpfc_ncmd->flags &= ~LPFC_SBUF_NOT_POSTED;
17627 lpfc_ncmd->status = IOSTAT_SUCCESS;
17630 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
17633 /* Push NVME buffers with sgl posted to the available list */
17634 lpfc_io_buf_replenish(phba, &nvme_nblist);
17640 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
17641 * @phba: pointer to lpfc_hba struct that the frame was received on
17642 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
17644 * This function checks the fields in the @fc_hdr to see if the FC frame is a
17645 * valid type of frame that the LPFC driver will handle. This function will
17646 * return a zero if the frame is a valid frame or a non zero value when the
17647 * frame does not pass the check.
17650 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
17652 /* make rctl_names static to save stack space */
17653 struct fc_vft_header *fc_vft_hdr;
17654 uint32_t *header = (uint32_t *) fc_hdr;
17656 #define FC_RCTL_MDS_DIAGS 0xF4
17658 switch (fc_hdr->fh_r_ctl) {
17659 case FC_RCTL_DD_UNCAT: /* uncategorized information */
17660 case FC_RCTL_DD_SOL_DATA: /* solicited data */
17661 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
17662 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
17663 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
17664 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
17665 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
17666 case FC_RCTL_DD_CMD_STATUS: /* command status */
17667 case FC_RCTL_ELS_REQ: /* extended link services request */
17668 case FC_RCTL_ELS_REP: /* extended link services reply */
17669 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
17670 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
17671 case FC_RCTL_BA_NOP: /* basic link service NOP */
17672 case FC_RCTL_BA_ABTS: /* basic link service abort */
17673 case FC_RCTL_BA_RMC: /* remove connection */
17674 case FC_RCTL_BA_ACC: /* basic accept */
17675 case FC_RCTL_BA_RJT: /* basic reject */
17676 case FC_RCTL_BA_PRMT:
17677 case FC_RCTL_ACK_1: /* acknowledge_1 */
17678 case FC_RCTL_ACK_0: /* acknowledge_0 */
17679 case FC_RCTL_P_RJT: /* port reject */
17680 case FC_RCTL_F_RJT: /* fabric reject */
17681 case FC_RCTL_P_BSY: /* port busy */
17682 case FC_RCTL_F_BSY: /* fabric busy to data frame */
17683 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
17684 case FC_RCTL_LCR: /* link credit reset */
17685 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
17686 case FC_RCTL_END: /* end */
17688 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
17689 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
17690 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
17691 return lpfc_fc_frame_check(phba, fc_hdr);
17696 switch (fc_hdr->fh_type) {
17709 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
17710 "2538 Received frame rctl:x%x, type:x%x, "
17711 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
17712 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
17713 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
17714 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
17715 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
17716 be32_to_cpu(header[6]));
17719 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
17720 "2539 Dropped frame rctl:x%x type:x%x\n",
17721 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17726 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
17727 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
17729 * This function processes the FC header to retrieve the VFI from the VF
17730 * header, if one exists. This function will return the VFI if one exists
17731 * or 0 if no VSAN Header exists.
17734 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
17736 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
17738 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
17740 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
17744 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
17745 * @phba: Pointer to the HBA structure to search for the vport on
17746 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
17747 * @fcfi: The FC Fabric ID that the frame came from
17748 * @did: Destination ID to match against
17750 * This function searches the @phba for a vport that matches the content of the
17751 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
17752 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
17753 * returns the matching vport pointer or NULL if unable to match frame to a
17756 static struct lpfc_vport *
17757 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
17758 uint16_t fcfi, uint32_t did)
17760 struct lpfc_vport **vports;
17761 struct lpfc_vport *vport = NULL;
17764 if (did == Fabric_DID)
17765 return phba->pport;
17766 if ((phba->pport->fc_flag & FC_PT2PT) &&
17767 !(phba->link_state == LPFC_HBA_READY))
17768 return phba->pport;
17770 vports = lpfc_create_vport_work_array(phba);
17771 if (vports != NULL) {
17772 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
17773 if (phba->fcf.fcfi == fcfi &&
17774 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
17775 vports[i]->fc_myDID == did) {
17781 lpfc_destroy_vport_work_array(phba, vports);
17786 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
17787 * @vport: The vport to work on.
17789 * This function updates the receive sequence time stamp for this vport. The
17790 * receive sequence time stamp indicates the time that the last frame of the
17791 * the sequence that has been idle for the longest amount of time was received.
17792 * the driver uses this time stamp to indicate if any received sequences have
17796 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
17798 struct lpfc_dmabuf *h_buf;
17799 struct hbq_dmabuf *dmabuf = NULL;
17801 /* get the oldest sequence on the rcv list */
17802 h_buf = list_get_first(&vport->rcv_buffer_list,
17803 struct lpfc_dmabuf, list);
17806 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17807 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
17811 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
17812 * @vport: The vport that the received sequences were sent to.
17814 * This function cleans up all outstanding received sequences. This is called
17815 * by the driver when a link event or user action invalidates all the received
17819 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
17821 struct lpfc_dmabuf *h_buf, *hnext;
17822 struct lpfc_dmabuf *d_buf, *dnext;
17823 struct hbq_dmabuf *dmabuf = NULL;
17825 /* start with the oldest sequence on the rcv list */
17826 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17827 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17828 list_del_init(&dmabuf->hbuf.list);
17829 list_for_each_entry_safe(d_buf, dnext,
17830 &dmabuf->dbuf.list, list) {
17831 list_del_init(&d_buf->list);
17832 lpfc_in_buf_free(vport->phba, d_buf);
17834 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17839 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
17840 * @vport: The vport that the received sequences were sent to.
17842 * This function determines whether any received sequences have timed out by
17843 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
17844 * indicates that there is at least one timed out sequence this routine will
17845 * go through the received sequences one at a time from most inactive to most
17846 * active to determine which ones need to be cleaned up. Once it has determined
17847 * that a sequence needs to be cleaned up it will simply free up the resources
17848 * without sending an abort.
17851 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
17853 struct lpfc_dmabuf *h_buf, *hnext;
17854 struct lpfc_dmabuf *d_buf, *dnext;
17855 struct hbq_dmabuf *dmabuf = NULL;
17856 unsigned long timeout;
17857 int abort_count = 0;
17859 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17860 vport->rcv_buffer_time_stamp);
17861 if (list_empty(&vport->rcv_buffer_list) ||
17862 time_before(jiffies, timeout))
17864 /* start with the oldest sequence on the rcv list */
17865 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17866 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17867 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17868 dmabuf->time_stamp);
17869 if (time_before(jiffies, timeout))
17872 list_del_init(&dmabuf->hbuf.list);
17873 list_for_each_entry_safe(d_buf, dnext,
17874 &dmabuf->dbuf.list, list) {
17875 list_del_init(&d_buf->list);
17876 lpfc_in_buf_free(vport->phba, d_buf);
17878 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17881 lpfc_update_rcv_time_stamp(vport);
17885 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
17886 * @vport: pointer to a vitural port
17887 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
17889 * This function searches through the existing incomplete sequences that have
17890 * been sent to this @vport. If the frame matches one of the incomplete
17891 * sequences then the dbuf in the @dmabuf is added to the list of frames that
17892 * make up that sequence. If no sequence is found that matches this frame then
17893 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
17894 * This function returns a pointer to the first dmabuf in the sequence list that
17895 * the frame was linked to.
17897 static struct hbq_dmabuf *
17898 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17900 struct fc_frame_header *new_hdr;
17901 struct fc_frame_header *temp_hdr;
17902 struct lpfc_dmabuf *d_buf;
17903 struct lpfc_dmabuf *h_buf;
17904 struct hbq_dmabuf *seq_dmabuf = NULL;
17905 struct hbq_dmabuf *temp_dmabuf = NULL;
17908 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17909 dmabuf->time_stamp = jiffies;
17910 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17912 /* Use the hdr_buf to find the sequence that this frame belongs to */
17913 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17914 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17915 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17916 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17917 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17919 /* found a pending sequence that matches this frame */
17920 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17925 * This indicates first frame received for this sequence.
17926 * Queue the buffer on the vport's rcv_buffer_list.
17928 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17929 lpfc_update_rcv_time_stamp(vport);
17932 temp_hdr = seq_dmabuf->hbuf.virt;
17933 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
17934 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17935 list_del_init(&seq_dmabuf->hbuf.list);
17936 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17937 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17938 lpfc_update_rcv_time_stamp(vport);
17941 /* move this sequence to the tail to indicate a young sequence */
17942 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
17943 seq_dmabuf->time_stamp = jiffies;
17944 lpfc_update_rcv_time_stamp(vport);
17945 if (list_empty(&seq_dmabuf->dbuf.list)) {
17946 temp_hdr = dmabuf->hbuf.virt;
17947 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17950 /* find the correct place in the sequence to insert this frame */
17951 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
17953 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17954 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
17956 * If the frame's sequence count is greater than the frame on
17957 * the list then insert the frame right after this frame
17959 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
17960 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17961 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
17966 if (&d_buf->list == &seq_dmabuf->dbuf.list)
17968 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
17977 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
17978 * @vport: pointer to a vitural port
17979 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17981 * This function tries to abort from the partially assembed sequence, described
17982 * by the information from basic abbort @dmabuf. It checks to see whether such
17983 * partially assembled sequence held by the driver. If so, it shall free up all
17984 * the frames from the partially assembled sequence.
17987 * true -- if there is matching partially assembled sequence present and all
17988 * the frames freed with the sequence;
17989 * false -- if there is no matching partially assembled sequence present so
17990 * nothing got aborted in the lower layer driver
17993 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
17994 struct hbq_dmabuf *dmabuf)
17996 struct fc_frame_header *new_hdr;
17997 struct fc_frame_header *temp_hdr;
17998 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
17999 struct hbq_dmabuf *seq_dmabuf = NULL;
18001 /* Use the hdr_buf to find the sequence that matches this frame */
18002 INIT_LIST_HEAD(&dmabuf->dbuf.list);
18003 INIT_LIST_HEAD(&dmabuf->hbuf.list);
18004 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18005 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
18006 temp_hdr = (struct fc_frame_header *)h_buf->virt;
18007 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
18008 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
18009 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
18011 /* found a pending sequence that matches this frame */
18012 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18016 /* Free up all the frames from the partially assembled sequence */
18018 list_for_each_entry_safe(d_buf, n_buf,
18019 &seq_dmabuf->dbuf.list, list) {
18020 list_del_init(&d_buf->list);
18021 lpfc_in_buf_free(vport->phba, d_buf);
18029 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
18030 * @vport: pointer to a vitural port
18031 * @dmabuf: pointer to a dmabuf that describes the FC sequence
18033 * This function tries to abort from the assembed sequence from upper level
18034 * protocol, described by the information from basic abbort @dmabuf. It
18035 * checks to see whether such pending context exists at upper level protocol.
18036 * If so, it shall clean up the pending context.
18039 * true -- if there is matching pending context of the sequence cleaned
18041 * false -- if there is no matching pending context of the sequence present
18045 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
18047 struct lpfc_hba *phba = vport->phba;
18050 /* Accepting abort at ulp with SLI4 only */
18051 if (phba->sli_rev < LPFC_SLI_REV4)
18054 /* Register all caring upper level protocols to attend abort */
18055 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
18063 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
18064 * @phba: Pointer to HBA context object.
18065 * @cmd_iocbq: pointer to the command iocbq structure.
18066 * @rsp_iocbq: pointer to the response iocbq structure.
18068 * This function handles the sequence abort response iocb command complete
18069 * event. It properly releases the memory allocated to the sequence abort
18073 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
18074 struct lpfc_iocbq *cmd_iocbq,
18075 struct lpfc_iocbq *rsp_iocbq)
18077 struct lpfc_nodelist *ndlp;
18080 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
18081 lpfc_nlp_put(ndlp);
18082 lpfc_sli_release_iocbq(phba, cmd_iocbq);
18085 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
18086 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
18087 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18088 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
18089 rsp_iocbq->iocb.ulpStatus,
18090 rsp_iocbq->iocb.un.ulpWord[4]);
18094 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
18095 * @phba: Pointer to HBA context object.
18096 * @xri: xri id in transaction.
18098 * This function validates the xri maps to the known range of XRIs allocated an
18099 * used by the driver.
18102 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
18107 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
18108 if (xri == phba->sli4_hba.xri_ids[i])
18115 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
18116 * @vport: pointer to a virtual port.
18117 * @fc_hdr: pointer to a FC frame header.
18118 * @aborted: was the partially assembled receive sequence successfully aborted
18120 * This function sends a basic response to a previous unsol sequence abort
18121 * event after aborting the sequence handling.
18124 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
18125 struct fc_frame_header *fc_hdr, bool aborted)
18127 struct lpfc_hba *phba = vport->phba;
18128 struct lpfc_iocbq *ctiocb = NULL;
18129 struct lpfc_nodelist *ndlp;
18130 uint16_t oxid, rxid, xri, lxri;
18131 uint32_t sid, fctl;
18135 if (!lpfc_is_link_up(phba))
18138 sid = sli4_sid_from_fc_hdr(fc_hdr);
18139 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
18140 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
18142 ndlp = lpfc_findnode_did(vport, sid);
18144 ndlp = lpfc_nlp_init(vport, sid);
18146 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
18147 "1268 Failed to allocate ndlp for "
18148 "oxid:x%x SID:x%x\n", oxid, sid);
18151 /* Put ndlp onto pport node list */
18152 lpfc_enqueue_node(vport, ndlp);
18155 /* Allocate buffer for rsp iocb */
18156 ctiocb = lpfc_sli_get_iocbq(phba);
18160 /* Extract the F_CTL field from FC_HDR */
18161 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
18163 icmd = &ctiocb->iocb;
18164 icmd->un.xseq64.bdl.bdeSize = 0;
18165 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
18166 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
18167 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
18168 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
18170 /* Fill in the rest of iocb fields */
18171 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
18172 icmd->ulpBdeCount = 0;
18174 icmd->ulpClass = CLASS3;
18175 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
18176 ctiocb->context1 = lpfc_nlp_get(ndlp);
18177 if (!ctiocb->context1) {
18178 lpfc_sli_release_iocbq(phba, ctiocb);
18182 ctiocb->vport = phba->pport;
18183 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
18184 ctiocb->sli4_lxritag = NO_XRI;
18185 ctiocb->sli4_xritag = NO_XRI;
18187 if (fctl & FC_FC_EX_CTX)
18188 /* Exchange responder sent the abort so we
18194 lxri = lpfc_sli4_xri_inrange(phba, xri);
18195 if (lxri != NO_XRI)
18196 lpfc_set_rrq_active(phba, ndlp, lxri,
18197 (xri == oxid) ? rxid : oxid, 0);
18198 /* For BA_ABTS from exchange responder, if the logical xri with
18199 * the oxid maps to the FCP XRI range, the port no longer has
18200 * that exchange context, send a BLS_RJT. Override the IOCB for
18203 if ((fctl & FC_FC_EX_CTX) &&
18204 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
18205 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
18206 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
18207 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
18208 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
18211 /* If BA_ABTS failed to abort a partially assembled receive sequence,
18212 * the driver no longer has that exchange, send a BLS_RJT. Override
18213 * the IOCB for a BA_RJT.
18215 if (aborted == false) {
18216 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
18217 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
18218 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
18219 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
18222 if (fctl & FC_FC_EX_CTX) {
18223 /* ABTS sent by responder to CT exchange, construction
18224 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
18225 * field and RX_ID from ABTS for RX_ID field.
18227 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
18229 /* ABTS sent by initiator to CT exchange, construction
18230 * of BA_ACC will need to allocate a new XRI as for the
18233 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
18235 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
18236 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
18238 /* Xmit CT abts response on exchange <xid> */
18239 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
18240 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
18241 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
18243 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
18244 if (rc == IOCB_ERROR) {
18245 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
18246 "2925 Failed to issue CT ABTS RSP x%x on "
18247 "xri x%x, Data x%x\n",
18248 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
18250 lpfc_nlp_put(ndlp);
18251 ctiocb->context1 = NULL;
18252 lpfc_sli_release_iocbq(phba, ctiocb);
18257 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
18258 * @vport: Pointer to the vport on which this sequence was received
18259 * @dmabuf: pointer to a dmabuf that describes the FC sequence
18261 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
18262 * receive sequence is only partially assembed by the driver, it shall abort
18263 * the partially assembled frames for the sequence. Otherwise, if the
18264 * unsolicited receive sequence has been completely assembled and passed to
18265 * the Upper Layer Protocol (ULP), it then mark the per oxid status for the
18266 * unsolicited sequence has been aborted. After that, it will issue a basic
18267 * accept to accept the abort.
18270 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
18271 struct hbq_dmabuf *dmabuf)
18273 struct lpfc_hba *phba = vport->phba;
18274 struct fc_frame_header fc_hdr;
18278 /* Make a copy of fc_hdr before the dmabuf being released */
18279 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
18280 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
18282 if (fctl & FC_FC_EX_CTX) {
18283 /* ABTS by responder to exchange, no cleanup needed */
18286 /* ABTS by initiator to exchange, need to do cleanup */
18287 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
18288 if (aborted == false)
18289 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
18291 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18293 if (phba->nvmet_support) {
18294 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
18298 /* Respond with BA_ACC or BA_RJT accordingly */
18299 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
18303 * lpfc_seq_complete - Indicates if a sequence is complete
18304 * @dmabuf: pointer to a dmabuf that describes the FC sequence
18306 * This function checks the sequence, starting with the frame described by
18307 * @dmabuf, to see if all the frames associated with this sequence are present.
18308 * the frames associated with this sequence are linked to the @dmabuf using the
18309 * dbuf list. This function looks for two major things. 1) That the first frame
18310 * has a sequence count of zero. 2) There is a frame with last frame of sequence
18311 * set. 3) That there are no holes in the sequence count. The function will
18312 * return 1 when the sequence is complete, otherwise it will return 0.
18315 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
18317 struct fc_frame_header *hdr;
18318 struct lpfc_dmabuf *d_buf;
18319 struct hbq_dmabuf *seq_dmabuf;
18323 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18324 /* make sure first fame of sequence has a sequence count of zero */
18325 if (hdr->fh_seq_cnt != seq_count)
18327 fctl = (hdr->fh_f_ctl[0] << 16 |
18328 hdr->fh_f_ctl[1] << 8 |
18330 /* If last frame of sequence we can return success. */
18331 if (fctl & FC_FC_END_SEQ)
18333 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
18334 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
18335 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
18336 /* If there is a hole in the sequence count then fail. */
18337 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
18339 fctl = (hdr->fh_f_ctl[0] << 16 |
18340 hdr->fh_f_ctl[1] << 8 |
18342 /* If last frame of sequence we can return success. */
18343 if (fctl & FC_FC_END_SEQ)
18350 * lpfc_prep_seq - Prep sequence for ULP processing
18351 * @vport: Pointer to the vport on which this sequence was received
18352 * @seq_dmabuf: pointer to a dmabuf that describes the FC sequence
18354 * This function takes a sequence, described by a list of frames, and creates
18355 * a list of iocbq structures to describe the sequence. This iocbq list will be
18356 * used to issue to the generic unsolicited sequence handler. This routine
18357 * returns a pointer to the first iocbq in the list. If the function is unable
18358 * to allocate an iocbq then it throw out the received frames that were not
18359 * able to be described and return a pointer to the first iocbq. If unable to
18360 * allocate any iocbqs (including the first) this function will return NULL.
18362 static struct lpfc_iocbq *
18363 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
18365 struct hbq_dmabuf *hbq_buf;
18366 struct lpfc_dmabuf *d_buf, *n_buf;
18367 struct lpfc_iocbq *first_iocbq, *iocbq;
18368 struct fc_frame_header *fc_hdr;
18370 uint32_t len, tot_len;
18371 struct ulp_bde64 *pbde;
18373 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
18374 /* remove from receive buffer list */
18375 list_del_init(&seq_dmabuf->hbuf.list);
18376 lpfc_update_rcv_time_stamp(vport);
18377 /* get the Remote Port's SID */
18378 sid = sli4_sid_from_fc_hdr(fc_hdr);
18380 /* Get an iocbq struct to fill in. */
18381 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
18383 /* Initialize the first IOCB. */
18384 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
18385 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
18386 first_iocbq->vport = vport;
18388 /* Check FC Header to see what TYPE of frame we are rcv'ing */
18389 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
18390 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
18391 first_iocbq->iocb.un.rcvels.parmRo =
18392 sli4_did_from_fc_hdr(fc_hdr);
18393 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
18395 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
18396 first_iocbq->iocb.ulpContext = NO_XRI;
18397 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
18398 be16_to_cpu(fc_hdr->fh_ox_id);
18399 /* iocbq is prepped for internal consumption. Physical vpi. */
18400 first_iocbq->iocb.unsli3.rcvsli3.vpi =
18401 vport->phba->vpi_ids[vport->vpi];
18402 /* put the first buffer into the first IOCBq */
18403 tot_len = bf_get(lpfc_rcqe_length,
18404 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
18406 first_iocbq->context2 = &seq_dmabuf->dbuf;
18407 first_iocbq->context3 = NULL;
18408 first_iocbq->iocb.ulpBdeCount = 1;
18409 if (tot_len > LPFC_DATA_BUF_SIZE)
18410 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
18411 LPFC_DATA_BUF_SIZE;
18413 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
18415 first_iocbq->iocb.un.rcvels.remoteID = sid;
18417 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
18419 iocbq = first_iocbq;
18421 * Each IOCBq can have two Buffers assigned, so go through the list
18422 * of buffers for this sequence and save two buffers in each IOCBq
18424 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
18426 lpfc_in_buf_free(vport->phba, d_buf);
18429 if (!iocbq->context3) {
18430 iocbq->context3 = d_buf;
18431 iocbq->iocb.ulpBdeCount++;
18432 /* We need to get the size out of the right CQE */
18433 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
18434 len = bf_get(lpfc_rcqe_length,
18435 &hbq_buf->cq_event.cqe.rcqe_cmpl);
18436 pbde = (struct ulp_bde64 *)
18437 &iocbq->iocb.unsli3.sli3Words[4];
18438 if (len > LPFC_DATA_BUF_SIZE)
18439 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
18441 pbde->tus.f.bdeSize = len;
18443 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
18446 iocbq = lpfc_sli_get_iocbq(vport->phba);
18449 first_iocbq->iocb.ulpStatus =
18450 IOSTAT_FCP_RSP_ERROR;
18451 first_iocbq->iocb.un.ulpWord[4] =
18452 IOERR_NO_RESOURCES;
18454 lpfc_in_buf_free(vport->phba, d_buf);
18457 /* We need to get the size out of the right CQE */
18458 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
18459 len = bf_get(lpfc_rcqe_length,
18460 &hbq_buf->cq_event.cqe.rcqe_cmpl);
18461 iocbq->context2 = d_buf;
18462 iocbq->context3 = NULL;
18463 iocbq->iocb.ulpBdeCount = 1;
18464 if (len > LPFC_DATA_BUF_SIZE)
18465 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
18466 LPFC_DATA_BUF_SIZE;
18468 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
18471 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
18473 iocbq->iocb.un.rcvels.remoteID = sid;
18474 list_add_tail(&iocbq->list, &first_iocbq->list);
18477 /* Free the sequence's header buffer */
18479 lpfc_in_buf_free(vport->phba, &seq_dmabuf->dbuf);
18481 return first_iocbq;
18485 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
18486 struct hbq_dmabuf *seq_dmabuf)
18488 struct fc_frame_header *fc_hdr;
18489 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
18490 struct lpfc_hba *phba = vport->phba;
18492 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
18493 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
18495 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18496 "2707 Ring %d handler: Failed to allocate "
18497 "iocb Rctl x%x Type x%x received\n",
18499 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
18502 if (!lpfc_complete_unsol_iocb(phba,
18503 phba->sli4_hba.els_wq->pring,
18504 iocbq, fc_hdr->fh_r_ctl,
18506 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18507 "2540 Ring %d handler: unexpected Rctl "
18508 "x%x Type x%x received\n",
18510 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
18512 /* Free iocb created in lpfc_prep_seq */
18513 list_for_each_entry_safe(curr_iocb, next_iocb,
18514 &iocbq->list, list) {
18515 list_del_init(&curr_iocb->list);
18516 lpfc_sli_release_iocbq(phba, curr_iocb);
18518 lpfc_sli_release_iocbq(phba, iocbq);
18522 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
18523 struct lpfc_iocbq *rspiocb)
18525 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
18527 if (pcmd && pcmd->virt)
18528 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
18530 lpfc_sli_release_iocbq(phba, cmdiocb);
18531 lpfc_drain_txq(phba);
18535 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
18536 struct hbq_dmabuf *dmabuf)
18538 struct fc_frame_header *fc_hdr;
18539 struct lpfc_hba *phba = vport->phba;
18540 struct lpfc_iocbq *iocbq = NULL;
18541 union lpfc_wqe *wqe;
18542 struct lpfc_dmabuf *pcmd = NULL;
18543 uint32_t frame_len;
18545 unsigned long iflags;
18547 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18548 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
18550 /* Send the received frame back */
18551 iocbq = lpfc_sli_get_iocbq(phba);
18553 /* Queue cq event and wakeup worker thread to process it */
18554 spin_lock_irqsave(&phba->hbalock, iflags);
18555 list_add_tail(&dmabuf->cq_event.list,
18556 &phba->sli4_hba.sp_queue_event);
18557 phba->hba_flag |= HBA_SP_QUEUE_EVT;
18558 spin_unlock_irqrestore(&phba->hbalock, iflags);
18559 lpfc_worker_wake_up(phba);
18563 /* Allocate buffer for command payload */
18564 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
18566 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
18568 if (!pcmd || !pcmd->virt)
18571 INIT_LIST_HEAD(&pcmd->list);
18573 /* copyin the payload */
18574 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
18576 /* fill in BDE's for command */
18577 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
18578 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
18579 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
18580 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
18582 iocbq->context2 = pcmd;
18583 iocbq->vport = vport;
18584 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
18585 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
18588 * Setup rest of the iocb as though it were a WQE
18589 * Build the SEND_FRAME WQE
18591 wqe = (union lpfc_wqe *)&iocbq->iocb;
18593 wqe->send_frame.frame_len = frame_len;
18594 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
18595 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
18596 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
18597 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
18598 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
18599 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
18601 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
18602 iocbq->iocb.ulpLe = 1;
18603 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
18604 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
18605 if (rc == IOCB_ERROR)
18608 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18612 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
18613 "2023 Unable to process MDS loopback frame\n");
18614 if (pcmd && pcmd->virt)
18615 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
18618 lpfc_sli_release_iocbq(phba, iocbq);
18619 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18623 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
18624 * @phba: Pointer to HBA context object.
18625 * @dmabuf: Pointer to a dmabuf that describes the FC sequence.
18627 * This function is called with no lock held. This function processes all
18628 * the received buffers and gives it to upper layers when a received buffer
18629 * indicates that it is the final frame in the sequence. The interrupt
18630 * service routine processes received buffers at interrupt contexts.
18631 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
18632 * appropriate receive function when the final frame in a sequence is received.
18635 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
18636 struct hbq_dmabuf *dmabuf)
18638 struct hbq_dmabuf *seq_dmabuf;
18639 struct fc_frame_header *fc_hdr;
18640 struct lpfc_vport *vport;
18644 /* Process each received buffer */
18645 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18647 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
18648 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
18649 vport = phba->pport;
18650 /* Handle MDS Loopback frames */
18651 if (!(phba->pport->load_flag & FC_UNLOADING))
18652 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
18654 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18658 /* check to see if this a valid type of frame */
18659 if (lpfc_fc_frame_check(phba, fc_hdr)) {
18660 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18664 if ((bf_get(lpfc_cqe_code,
18665 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
18666 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
18667 &dmabuf->cq_event.cqe.rcqe_cmpl);
18669 fcfi = bf_get(lpfc_rcqe_fcf_id,
18670 &dmabuf->cq_event.cqe.rcqe_cmpl);
18672 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
18673 vport = phba->pport;
18674 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
18675 "2023 MDS Loopback %d bytes\n",
18676 bf_get(lpfc_rcqe_length,
18677 &dmabuf->cq_event.cqe.rcqe_cmpl));
18678 /* Handle MDS Loopback frames */
18679 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
18683 /* d_id this frame is directed to */
18684 did = sli4_did_from_fc_hdr(fc_hdr);
18686 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
18688 /* throw out the frame */
18689 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18693 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
18694 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
18695 (did != Fabric_DID)) {
18697 * Throw out the frame if we are not pt2pt.
18698 * The pt2pt protocol allows for discovery frames
18699 * to be received without a registered VPI.
18701 if (!(vport->fc_flag & FC_PT2PT) ||
18702 (phba->link_state == LPFC_HBA_READY)) {
18703 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18708 /* Handle the basic abort sequence (BA_ABTS) event */
18709 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
18710 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
18714 /* Link this frame */
18715 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
18717 /* unable to add frame to vport - throw it out */
18718 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18721 /* If not last frame in sequence continue processing frames. */
18722 if (!lpfc_seq_complete(seq_dmabuf))
18725 /* Send the complete sequence to the upper layer protocol */
18726 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
18730 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
18731 * @phba: pointer to lpfc hba data structure.
18733 * This routine is invoked to post rpi header templates to the
18734 * HBA consistent with the SLI-4 interface spec. This routine
18735 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18736 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18738 * This routine does not require any locks. It's usage is expected
18739 * to be driver load or reset recovery when the driver is
18744 * -EIO - The mailbox failed to complete successfully.
18745 * When this error occurs, the driver is not guaranteed
18746 * to have any rpi regions posted to the device and
18747 * must either attempt to repost the regions or take a
18751 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
18753 struct lpfc_rpi_hdr *rpi_page;
18757 /* SLI4 ports that support extents do not require RPI headers. */
18758 if (!phba->sli4_hba.rpi_hdrs_in_use)
18760 if (phba->sli4_hba.extents_in_use)
18763 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
18765 * Assign the rpi headers a physical rpi only if the driver
18766 * has not initialized those resources. A port reset only
18767 * needs the headers posted.
18769 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
18771 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18773 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
18774 if (rc != MBX_SUCCESS) {
18775 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18776 "2008 Error %d posting all rpi "
18784 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
18785 LPFC_RPI_RSRC_RDY);
18790 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
18791 * @phba: pointer to lpfc hba data structure.
18792 * @rpi_page: pointer to the rpi memory region.
18794 * This routine is invoked to post a single rpi header to the
18795 * HBA consistent with the SLI-4 interface spec. This memory region
18796 * maps up to 64 rpi context regions.
18800 * -ENOMEM - No available memory
18801 * -EIO - The mailbox failed to complete successfully.
18804 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
18806 LPFC_MBOXQ_t *mboxq;
18807 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
18809 uint32_t shdr_status, shdr_add_status;
18810 union lpfc_sli4_cfg_shdr *shdr;
18812 /* SLI4 ports that support extents do not require RPI headers. */
18813 if (!phba->sli4_hba.rpi_hdrs_in_use)
18815 if (phba->sli4_hba.extents_in_use)
18818 /* The port is notified of the header region via a mailbox command. */
18819 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18821 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18822 "2001 Unable to allocate memory for issuing "
18823 "SLI_CONFIG_SPECIAL mailbox command\n");
18827 /* Post all rpi memory regions to the port. */
18828 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
18829 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18830 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
18831 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
18832 sizeof(struct lpfc_sli4_cfg_mhdr),
18833 LPFC_SLI4_MBX_EMBED);
18836 /* Post the physical rpi to the port for this rpi header. */
18837 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
18838 rpi_page->start_rpi);
18839 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
18840 hdr_tmpl, rpi_page->page_count);
18842 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
18843 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
18844 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18845 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
18846 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18847 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18848 mempool_free(mboxq, phba->mbox_mem_pool);
18849 if (shdr_status || shdr_add_status || rc) {
18850 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18851 "2514 POST_RPI_HDR mailbox failed with "
18852 "status x%x add_status x%x, mbx status x%x\n",
18853 shdr_status, shdr_add_status, rc);
18857 * The next_rpi stores the next logical module-64 rpi value used
18858 * to post physical rpis in subsequent rpi postings.
18860 spin_lock_irq(&phba->hbalock);
18861 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
18862 spin_unlock_irq(&phba->hbalock);
18868 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
18869 * @phba: pointer to lpfc hba data structure.
18871 * This routine is invoked to post rpi header templates to the
18872 * HBA consistent with the SLI-4 interface spec. This routine
18873 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18874 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18877 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
18878 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
18881 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
18884 uint16_t max_rpi, rpi_limit;
18885 uint16_t rpi_remaining, lrpi = 0;
18886 struct lpfc_rpi_hdr *rpi_hdr;
18887 unsigned long iflag;
18890 * Fetch the next logical rpi. Because this index is logical,
18891 * the driver starts at 0 each time.
18893 spin_lock_irqsave(&phba->hbalock, iflag);
18894 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
18895 rpi_limit = phba->sli4_hba.next_rpi;
18897 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
18898 if (rpi >= rpi_limit)
18899 rpi = LPFC_RPI_ALLOC_ERROR;
18901 set_bit(rpi, phba->sli4_hba.rpi_bmask);
18902 phba->sli4_hba.max_cfg_param.rpi_used++;
18903 phba->sli4_hba.rpi_count++;
18905 lpfc_printf_log(phba, KERN_INFO,
18906 LOG_NODE | LOG_DISCOVERY,
18907 "0001 Allocated rpi:x%x max:x%x lim:x%x\n",
18908 (int) rpi, max_rpi, rpi_limit);
18911 * Don't try to allocate more rpi header regions if the device limit
18912 * has been exhausted.
18914 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
18915 (phba->sli4_hba.rpi_count >= max_rpi)) {
18916 spin_unlock_irqrestore(&phba->hbalock, iflag);
18921 * RPI header postings are not required for SLI4 ports capable of
18924 if (!phba->sli4_hba.rpi_hdrs_in_use) {
18925 spin_unlock_irqrestore(&phba->hbalock, iflag);
18930 * If the driver is running low on rpi resources, allocate another
18931 * page now. Note that the next_rpi value is used because
18932 * it represents how many are actually in use whereas max_rpi notes
18933 * how many are supported max by the device.
18935 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
18936 spin_unlock_irqrestore(&phba->hbalock, iflag);
18937 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
18938 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
18940 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18941 "2002 Error Could not grow rpi "
18944 lrpi = rpi_hdr->start_rpi;
18945 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18946 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
18954 * __lpfc_sli4_free_rpi - Release an rpi for reuse.
18955 * @phba: pointer to lpfc hba data structure.
18956 * @rpi: rpi to free
18958 * This routine is invoked to release an rpi to the pool of
18959 * available rpis maintained by the driver.
18962 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18965 * if the rpi value indicates a prior unreg has already
18966 * been done, skip the unreg.
18968 if (rpi == LPFC_RPI_ALLOC_ERROR)
18971 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
18972 phba->sli4_hba.rpi_count--;
18973 phba->sli4_hba.max_cfg_param.rpi_used--;
18975 lpfc_printf_log(phba, KERN_INFO,
18976 LOG_NODE | LOG_DISCOVERY,
18977 "2016 rpi %x not inuse\n",
18983 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18984 * @phba: pointer to lpfc hba data structure.
18985 * @rpi: rpi to free
18987 * This routine is invoked to release an rpi to the pool of
18988 * available rpis maintained by the driver.
18991 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18993 spin_lock_irq(&phba->hbalock);
18994 __lpfc_sli4_free_rpi(phba, rpi);
18995 spin_unlock_irq(&phba->hbalock);
18999 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
19000 * @phba: pointer to lpfc hba data structure.
19002 * This routine is invoked to remove the memory region that
19003 * provided rpi via a bitmask.
19006 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
19008 kfree(phba->sli4_hba.rpi_bmask);
19009 kfree(phba->sli4_hba.rpi_ids);
19010 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
19014 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
19015 * @ndlp: pointer to lpfc nodelist data structure.
19016 * @cmpl: completion call-back.
19017 * @arg: data to load as MBox 'caller buffer information'
19019 * This routine is invoked to remove the memory region that
19020 * provided rpi via a bitmask.
19023 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
19024 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
19026 LPFC_MBOXQ_t *mboxq;
19027 struct lpfc_hba *phba = ndlp->phba;
19030 /* The port is notified of the header region via a mailbox command. */
19031 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19035 /* Post all rpi memory regions to the port. */
19036 lpfc_resume_rpi(mboxq, ndlp);
19038 mboxq->mbox_cmpl = cmpl;
19039 mboxq->ctx_buf = arg;
19040 mboxq->ctx_ndlp = ndlp;
19042 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19043 mboxq->vport = ndlp->vport;
19044 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
19045 if (rc == MBX_NOT_FINISHED) {
19046 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19047 "2010 Resume RPI Mailbox failed "
19048 "status %d, mbxStatus x%x\n", rc,
19049 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
19050 mempool_free(mboxq, phba->mbox_mem_pool);
19057 * lpfc_sli4_init_vpi - Initialize a vpi with the port
19058 * @vport: Pointer to the vport for which the vpi is being initialized
19060 * This routine is invoked to activate a vpi with the port.
19064 * -Evalue otherwise
19067 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
19069 LPFC_MBOXQ_t *mboxq;
19071 int retval = MBX_SUCCESS;
19073 struct lpfc_hba *phba = vport->phba;
19074 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19077 lpfc_init_vpi(phba, mboxq, vport->vpi);
19078 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
19079 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
19080 if (rc != MBX_SUCCESS) {
19081 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
19082 "2022 INIT VPI Mailbox failed "
19083 "status %d, mbxStatus x%x\n", rc,
19084 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
19087 if (rc != MBX_TIMEOUT)
19088 mempool_free(mboxq, vport->phba->mbox_mem_pool);
19094 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
19095 * @phba: pointer to lpfc hba data structure.
19096 * @mboxq: Pointer to mailbox object.
19098 * This routine is invoked to manually add a single FCF record. The caller
19099 * must pass a completely initialized FCF_Record. This routine takes
19100 * care of the nonembedded mailbox operations.
19103 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
19106 union lpfc_sli4_cfg_shdr *shdr;
19107 uint32_t shdr_status, shdr_add_status;
19109 virt_addr = mboxq->sge_array->addr[0];
19110 /* The IOCTL status is embedded in the mailbox subheader. */
19111 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
19112 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
19113 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
19115 if ((shdr_status || shdr_add_status) &&
19116 (shdr_status != STATUS_FCF_IN_USE))
19117 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19118 "2558 ADD_FCF_RECORD mailbox failed with "
19119 "status x%x add_status x%x\n",
19120 shdr_status, shdr_add_status);
19122 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19126 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
19127 * @phba: pointer to lpfc hba data structure.
19128 * @fcf_record: pointer to the initialized fcf record to add.
19130 * This routine is invoked to manually add a single FCF record. The caller
19131 * must pass a completely initialized FCF_Record. This routine takes
19132 * care of the nonembedded mailbox operations.
19135 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
19138 LPFC_MBOXQ_t *mboxq;
19141 struct lpfc_mbx_sge sge;
19142 uint32_t alloc_len, req_len;
19145 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19147 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19148 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
19152 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
19155 /* Allocate DMA memory and set up the non-embedded mailbox command */
19156 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
19157 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
19158 req_len, LPFC_SLI4_MBX_NEMBED);
19159 if (alloc_len < req_len) {
19160 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19161 "2523 Allocated DMA memory size (x%x) is "
19162 "less than the requested DMA memory "
19163 "size (x%x)\n", alloc_len, req_len);
19164 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19169 * Get the first SGE entry from the non-embedded DMA memory. This
19170 * routine only uses a single SGE.
19172 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
19173 virt_addr = mboxq->sge_array->addr[0];
19175 * Configure the FCF record for FCFI 0. This is the driver's
19176 * hardcoded default and gets used in nonFIP mode.
19178 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
19179 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
19180 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
19183 * Copy the fcf_index and the FCF Record Data. The data starts after
19184 * the FCoE header plus word10. The data copy needs to be endian
19187 bytep += sizeof(uint32_t);
19188 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
19189 mboxq->vport = phba->pport;
19190 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
19191 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
19192 if (rc == MBX_NOT_FINISHED) {
19193 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19194 "2515 ADD_FCF_RECORD mailbox failed with "
19195 "status 0x%x\n", rc);
19196 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19205 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
19206 * @phba: pointer to lpfc hba data structure.
19207 * @fcf_record: pointer to the fcf record to write the default data.
19208 * @fcf_index: FCF table entry index.
19210 * This routine is invoked to build the driver's default FCF record. The
19211 * values used are hardcoded. This routine handles memory initialization.
19215 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
19216 struct fcf_record *fcf_record,
19217 uint16_t fcf_index)
19219 memset(fcf_record, 0, sizeof(struct fcf_record));
19220 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
19221 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
19222 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
19223 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
19224 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
19225 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
19226 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
19227 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
19228 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
19229 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
19230 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
19231 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
19232 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
19233 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
19234 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
19235 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
19236 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
19237 /* Set the VLAN bit map */
19238 if (phba->valid_vlan) {
19239 fcf_record->vlan_bitmap[phba->vlan_id / 8]
19240 = 1 << (phba->vlan_id % 8);
19245 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
19246 * @phba: pointer to lpfc hba data structure.
19247 * @fcf_index: FCF table entry offset.
19249 * This routine is invoked to scan the entire FCF table by reading FCF
19250 * record and processing it one at a time starting from the @fcf_index
19251 * for initial FCF discovery or fast FCF failover rediscovery.
19253 * Return 0 if the mailbox command is submitted successfully, none 0
19257 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
19260 LPFC_MBOXQ_t *mboxq;
19262 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
19263 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
19264 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19266 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19267 "2000 Failed to allocate mbox for "
19270 goto fail_fcf_scan;
19272 /* Construct the read FCF record mailbox command */
19273 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
19276 goto fail_fcf_scan;
19278 /* Issue the mailbox command asynchronously */
19279 mboxq->vport = phba->pport;
19280 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
19282 spin_lock_irq(&phba->hbalock);
19283 phba->hba_flag |= FCF_TS_INPROG;
19284 spin_unlock_irq(&phba->hbalock);
19286 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
19287 if (rc == MBX_NOT_FINISHED)
19290 /* Reset eligible FCF count for new scan */
19291 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
19292 phba->fcf.eligible_fcf_cnt = 0;
19298 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19299 /* FCF scan failed, clear FCF_TS_INPROG flag */
19300 spin_lock_irq(&phba->hbalock);
19301 phba->hba_flag &= ~FCF_TS_INPROG;
19302 spin_unlock_irq(&phba->hbalock);
19308 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
19309 * @phba: pointer to lpfc hba data structure.
19310 * @fcf_index: FCF table entry offset.
19312 * This routine is invoked to read an FCF record indicated by @fcf_index
19313 * and to use it for FLOGI roundrobin FCF failover.
19315 * Return 0 if the mailbox command is submitted successfully, none 0
19319 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
19322 LPFC_MBOXQ_t *mboxq;
19324 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19326 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
19327 "2763 Failed to allocate mbox for "
19330 goto fail_fcf_read;
19332 /* Construct the read FCF record mailbox command */
19333 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
19336 goto fail_fcf_read;
19338 /* Issue the mailbox command asynchronously */
19339 mboxq->vport = phba->pport;
19340 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
19341 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
19342 if (rc == MBX_NOT_FINISHED)
19348 if (error && mboxq)
19349 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19354 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
19355 * @phba: pointer to lpfc hba data structure.
19356 * @fcf_index: FCF table entry offset.
19358 * This routine is invoked to read an FCF record indicated by @fcf_index to
19359 * determine whether it's eligible for FLOGI roundrobin failover list.
19361 * Return 0 if the mailbox command is submitted successfully, none 0
19365 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
19368 LPFC_MBOXQ_t *mboxq;
19370 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19372 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
19373 "2758 Failed to allocate mbox for "
19376 goto fail_fcf_read;
19378 /* Construct the read FCF record mailbox command */
19379 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
19382 goto fail_fcf_read;
19384 /* Issue the mailbox command asynchronously */
19385 mboxq->vport = phba->pport;
19386 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
19387 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
19388 if (rc == MBX_NOT_FINISHED)
19394 if (error && mboxq)
19395 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19400 * lpfc_check_next_fcf_pri_level
19401 * @phba: pointer to the lpfc_hba struct for this port.
19402 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
19403 * routine when the rr_bmask is empty. The FCF indecies are put into the
19404 * rr_bmask based on their priority level. Starting from the highest priority
19405 * to the lowest. The most likely FCF candidate will be in the highest
19406 * priority group. When this routine is called it searches the fcf_pri list for
19407 * next lowest priority group and repopulates the rr_bmask with only those
19410 * 1=success 0=failure
19413 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
19415 uint16_t next_fcf_pri;
19416 uint16_t last_index;
19417 struct lpfc_fcf_pri *fcf_pri;
19421 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
19422 LPFC_SLI4_FCF_TBL_INDX_MAX);
19423 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
19424 "3060 Last IDX %d\n", last_index);
19426 /* Verify the priority list has 2 or more entries */
19427 spin_lock_irq(&phba->hbalock);
19428 if (list_empty(&phba->fcf.fcf_pri_list) ||
19429 list_is_singular(&phba->fcf.fcf_pri_list)) {
19430 spin_unlock_irq(&phba->hbalock);
19431 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
19432 "3061 Last IDX %d\n", last_index);
19433 return 0; /* Empty rr list */
19435 spin_unlock_irq(&phba->hbalock);
19439 * Clear the rr_bmask and set all of the bits that are at this
19442 memset(phba->fcf.fcf_rr_bmask, 0,
19443 sizeof(*phba->fcf.fcf_rr_bmask));
19444 spin_lock_irq(&phba->hbalock);
19445 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
19446 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
19449 * the 1st priority that has not FLOGI failed
19450 * will be the highest.
19453 next_fcf_pri = fcf_pri->fcf_rec.priority;
19454 spin_unlock_irq(&phba->hbalock);
19455 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
19456 rc = lpfc_sli4_fcf_rr_index_set(phba,
19457 fcf_pri->fcf_rec.fcf_index);
19461 spin_lock_irq(&phba->hbalock);
19464 * if next_fcf_pri was not set above and the list is not empty then
19465 * we have failed flogis on all of them. So reset flogi failed
19466 * and start at the beginning.
19468 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
19469 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
19470 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
19472 * the 1st priority that has not FLOGI failed
19473 * will be the highest.
19476 next_fcf_pri = fcf_pri->fcf_rec.priority;
19477 spin_unlock_irq(&phba->hbalock);
19478 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
19479 rc = lpfc_sli4_fcf_rr_index_set(phba,
19480 fcf_pri->fcf_rec.fcf_index);
19484 spin_lock_irq(&phba->hbalock);
19488 spin_unlock_irq(&phba->hbalock);
19493 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
19494 * @phba: pointer to lpfc hba data structure.
19496 * This routine is to get the next eligible FCF record index in a round
19497 * robin fashion. If the next eligible FCF record index equals to the
19498 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
19499 * shall be returned, otherwise, the next eligible FCF record's index
19500 * shall be returned.
19503 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
19505 uint16_t next_fcf_index;
19508 /* Search start from next bit of currently registered FCF index */
19509 next_fcf_index = phba->fcf.current_rec.fcf_indx;
19512 /* Determine the next fcf index to check */
19513 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
19514 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
19515 LPFC_SLI4_FCF_TBL_INDX_MAX,
19518 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
19519 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
19521 * If we have wrapped then we need to clear the bits that
19522 * have been tested so that we can detect when we should
19523 * change the priority level.
19525 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
19526 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
19530 /* Check roundrobin failover list empty condition */
19531 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
19532 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
19534 * If next fcf index is not found check if there are lower
19535 * Priority level fcf's in the fcf_priority list.
19536 * Set up the rr_bmask with all of the avaiable fcf bits
19537 * at that level and continue the selection process.
19539 if (lpfc_check_next_fcf_pri_level(phba))
19540 goto initial_priority;
19541 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
19542 "2844 No roundrobin failover FCF available\n");
19544 return LPFC_FCOE_FCF_NEXT_NONE;
19547 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
19548 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
19549 LPFC_FCF_FLOGI_FAILED) {
19550 if (list_is_singular(&phba->fcf.fcf_pri_list))
19551 return LPFC_FCOE_FCF_NEXT_NONE;
19553 goto next_priority;
19556 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
19557 "2845 Get next roundrobin failover FCF (x%x)\n",
19560 return next_fcf_index;
19564 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
19565 * @phba: pointer to lpfc hba data structure.
19566 * @fcf_index: index into the FCF table to 'set'
19568 * This routine sets the FCF record index in to the eligible bmask for
19569 * roundrobin failover search. It checks to make sure that the index
19570 * does not go beyond the range of the driver allocated bmask dimension
19571 * before setting the bit.
19573 * Returns 0 if the index bit successfully set, otherwise, it returns
19577 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
19579 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
19580 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
19581 "2610 FCF (x%x) reached driver's book "
19582 "keeping dimension:x%x\n",
19583 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
19586 /* Set the eligible FCF record index bmask */
19587 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
19589 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
19590 "2790 Set FCF (x%x) to roundrobin FCF failover "
19591 "bmask\n", fcf_index);
19597 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
19598 * @phba: pointer to lpfc hba data structure.
19599 * @fcf_index: index into the FCF table to 'clear'
19601 * This routine clears the FCF record index from the eligible bmask for
19602 * roundrobin failover search. It checks to make sure that the index
19603 * does not go beyond the range of the driver allocated bmask dimension
19604 * before clearing the bit.
19607 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
19609 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
19610 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
19611 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
19612 "2762 FCF (x%x) reached driver's book "
19613 "keeping dimension:x%x\n",
19614 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
19617 /* Clear the eligible FCF record index bmask */
19618 spin_lock_irq(&phba->hbalock);
19619 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
19621 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
19622 list_del_init(&fcf_pri->list);
19626 spin_unlock_irq(&phba->hbalock);
19627 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
19629 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
19630 "2791 Clear FCF (x%x) from roundrobin failover "
19631 "bmask\n", fcf_index);
19635 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
19636 * @phba: pointer to lpfc hba data structure.
19637 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
19639 * This routine is the completion routine for the rediscover FCF table mailbox
19640 * command. If the mailbox command returned failure, it will try to stop the
19641 * FCF rediscover wait timer.
19644 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
19646 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
19647 uint32_t shdr_status, shdr_add_status;
19649 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
19651 shdr_status = bf_get(lpfc_mbox_hdr_status,
19652 &redisc_fcf->header.cfg_shdr.response);
19653 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
19654 &redisc_fcf->header.cfg_shdr.response);
19655 if (shdr_status || shdr_add_status) {
19656 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
19657 "2746 Requesting for FCF rediscovery failed "
19658 "status x%x add_status x%x\n",
19659 shdr_status, shdr_add_status);
19660 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
19661 spin_lock_irq(&phba->hbalock);
19662 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
19663 spin_unlock_irq(&phba->hbalock);
19665 * CVL event triggered FCF rediscover request failed,
19666 * last resort to re-try current registered FCF entry.
19668 lpfc_retry_pport_discovery(phba);
19670 spin_lock_irq(&phba->hbalock);
19671 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
19672 spin_unlock_irq(&phba->hbalock);
19674 * DEAD FCF event triggered FCF rediscover request
19675 * failed, last resort to fail over as a link down
19676 * to FCF registration.
19678 lpfc_sli4_fcf_dead_failthrough(phba);
19681 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
19682 "2775 Start FCF rediscover quiescent timer\n");
19684 * Start FCF rediscovery wait timer for pending FCF
19685 * before rescan FCF record table.
19687 lpfc_fcf_redisc_wait_start_timer(phba);
19690 mempool_free(mbox, phba->mbox_mem_pool);
19694 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
19695 * @phba: pointer to lpfc hba data structure.
19697 * This routine is invoked to request for rediscovery of the entire FCF table
19701 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
19703 LPFC_MBOXQ_t *mbox;
19704 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
19707 /* Cancel retry delay timers to all vports before FCF rediscover */
19708 lpfc_cancel_all_vport_retry_delay_timer(phba);
19710 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19712 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19713 "2745 Failed to allocate mbox for "
19714 "requesting FCF rediscover.\n");
19718 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
19719 sizeof(struct lpfc_sli4_cfg_mhdr));
19720 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
19721 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
19722 length, LPFC_SLI4_MBX_EMBED);
19724 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
19725 /* Set count to 0 for invalidating the entire FCF database */
19726 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
19728 /* Issue the mailbox command asynchronously */
19729 mbox->vport = phba->pport;
19730 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
19731 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
19733 if (rc == MBX_NOT_FINISHED) {
19734 mempool_free(mbox, phba->mbox_mem_pool);
19741 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
19742 * @phba: pointer to lpfc hba data structure.
19744 * This function is the failover routine as a last resort to the FCF DEAD
19745 * event when driver failed to perform fast FCF failover.
19748 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
19750 uint32_t link_state;
19753 * Last resort as FCF DEAD event failover will treat this as
19754 * a link down, but save the link state because we don't want
19755 * it to be changed to Link Down unless it is already down.
19757 link_state = phba->link_state;
19758 lpfc_linkdown(phba);
19759 phba->link_state = link_state;
19761 /* Unregister FCF if no devices connected to it */
19762 lpfc_unregister_unused_fcf(phba);
19766 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
19767 * @phba: pointer to lpfc hba data structure.
19768 * @rgn23_data: pointer to configure region 23 data.
19770 * This function gets SLI3 port configure region 23 data through memory dump
19771 * mailbox command. When it successfully retrieves data, the size of the data
19772 * will be returned, otherwise, 0 will be returned.
19775 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19777 LPFC_MBOXQ_t *pmb = NULL;
19779 uint32_t offset = 0;
19785 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19787 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19788 "2600 failed to allocate mailbox memory\n");
19794 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
19795 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
19797 if (rc != MBX_SUCCESS) {
19798 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19799 "2601 failed to read config "
19800 "region 23, rc 0x%x Status 0x%x\n",
19801 rc, mb->mbxStatus);
19802 mb->un.varDmp.word_cnt = 0;
19805 * dump mem may return a zero when finished or we got a
19806 * mailbox error, either way we are done.
19808 if (mb->un.varDmp.word_cnt == 0)
19811 i = mb->un.varDmp.word_cnt * sizeof(uint32_t);
19812 if (offset + i > DMP_RGN23_SIZE)
19813 i = DMP_RGN23_SIZE - offset;
19814 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
19815 rgn23_data + offset, i);
19817 } while (offset < DMP_RGN23_SIZE);
19819 mempool_free(pmb, phba->mbox_mem_pool);
19824 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
19825 * @phba: pointer to lpfc hba data structure.
19826 * @rgn23_data: pointer to configure region 23 data.
19828 * This function gets SLI4 port configure region 23 data through memory dump
19829 * mailbox command. When it successfully retrieves data, the size of the data
19830 * will be returned, otherwise, 0 will be returned.
19833 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19835 LPFC_MBOXQ_t *mboxq = NULL;
19836 struct lpfc_dmabuf *mp = NULL;
19837 struct lpfc_mqe *mqe;
19838 uint32_t data_length = 0;
19844 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19846 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19847 "3105 failed to allocate mailbox memory\n");
19851 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
19853 mqe = &mboxq->u.mqe;
19854 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
19855 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
19858 data_length = mqe->un.mb_words[5];
19859 if (data_length == 0)
19861 if (data_length > DMP_RGN23_SIZE) {
19865 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
19867 mempool_free(mboxq, phba->mbox_mem_pool);
19869 lpfc_mbuf_free(phba, mp->virt, mp->phys);
19872 return data_length;
19876 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
19877 * @phba: pointer to lpfc hba data structure.
19879 * This function read region 23 and parse TLV for port status to
19880 * decide if the user disaled the port. If the TLV indicates the
19881 * port is disabled, the hba_flag is set accordingly.
19884 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
19886 uint8_t *rgn23_data = NULL;
19887 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
19888 uint32_t offset = 0;
19890 /* Get adapter Region 23 data */
19891 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
19895 if (phba->sli_rev < LPFC_SLI_REV4)
19896 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
19898 if_type = bf_get(lpfc_sli_intf_if_type,
19899 &phba->sli4_hba.sli_intf);
19900 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
19902 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
19908 /* Check the region signature first */
19909 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
19910 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19911 "2619 Config region 23 has bad signature\n");
19916 /* Check the data structure version */
19917 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
19918 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19919 "2620 Config region 23 has bad version\n");
19924 /* Parse TLV entries in the region */
19925 while (offset < data_size) {
19926 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
19929 * If the TLV is not driver specific TLV or driver id is
19930 * not linux driver id, skip the record.
19932 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
19933 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
19934 (rgn23_data[offset + 3] != 0)) {
19935 offset += rgn23_data[offset + 1] * 4 + 4;
19939 /* Driver found a driver specific TLV in the config region */
19940 sub_tlv_len = rgn23_data[offset + 1] * 4;
19945 * Search for configured port state sub-TLV.
19947 while ((offset < data_size) &&
19948 (tlv_offset < sub_tlv_len)) {
19949 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
19954 if (rgn23_data[offset] != PORT_STE_TYPE) {
19955 offset += rgn23_data[offset + 1] * 4 + 4;
19956 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
19960 /* This HBA contains PORT_STE configured */
19961 if (!rgn23_data[offset + 2])
19962 phba->hba_flag |= LINK_DISABLED;
19974 * lpfc_wr_object - write an object to the firmware
19975 * @phba: HBA structure that indicates port to create a queue on.
19976 * @dmabuf_list: list of dmabufs to write to the port.
19977 * @size: the total byte value of the objects to write to the port.
19978 * @offset: the current offset to be used to start the transfer.
19980 * This routine will create a wr_object mailbox command to send to the port.
19981 * the mailbox command will be constructed using the dma buffers described in
19982 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
19983 * BDEs that the imbedded mailbox can support. The @offset variable will be
19984 * used to indicate the starting offset of the transfer and will also return
19985 * the offset after the write object mailbox has completed. @size is used to
19986 * determine the end of the object and whether the eof bit should be set.
19988 * Return 0 is successful and offset will contain the the new offset to use
19989 * for the next write.
19990 * Return negative value for error cases.
19993 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
19994 uint32_t size, uint32_t *offset)
19996 struct lpfc_mbx_wr_object *wr_object;
19997 LPFC_MBOXQ_t *mbox;
19999 uint32_t shdr_status, shdr_add_status, shdr_change_status, shdr_csf;
20001 struct lpfc_dmabuf *dmabuf;
20002 uint32_t written = 0;
20003 bool check_change_status = false;
20005 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20009 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
20010 LPFC_MBOX_OPCODE_WRITE_OBJECT,
20011 sizeof(struct lpfc_mbx_wr_object) -
20012 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
20014 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
20015 wr_object->u.request.write_offset = *offset;
20016 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
20017 wr_object->u.request.object_name[0] =
20018 cpu_to_le32(wr_object->u.request.object_name[0]);
20019 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
20020 list_for_each_entry(dmabuf, dmabuf_list, list) {
20021 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
20023 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
20024 wr_object->u.request.bde[i].addrHigh =
20025 putPaddrHigh(dmabuf->phys);
20026 if (written + SLI4_PAGE_SIZE >= size) {
20027 wr_object->u.request.bde[i].tus.f.bdeSize =
20029 written += (size - written);
20030 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
20031 bf_set(lpfc_wr_object_eas, &wr_object->u.request, 1);
20032 check_change_status = true;
20034 wr_object->u.request.bde[i].tus.f.bdeSize =
20036 written += SLI4_PAGE_SIZE;
20040 wr_object->u.request.bde_count = i;
20041 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
20042 if (!phba->sli4_hba.intr_enable)
20043 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
20045 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
20046 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
20048 /* The IOCTL status is embedded in the mailbox subheader. */
20049 shdr_status = bf_get(lpfc_mbox_hdr_status,
20050 &wr_object->header.cfg_shdr.response);
20051 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
20052 &wr_object->header.cfg_shdr.response);
20053 if (check_change_status) {
20054 shdr_change_status = bf_get(lpfc_wr_object_change_status,
20055 &wr_object->u.response);
20057 if (shdr_change_status == LPFC_CHANGE_STATUS_FW_RESET ||
20058 shdr_change_status == LPFC_CHANGE_STATUS_PORT_MIGRATION) {
20059 shdr_csf = bf_get(lpfc_wr_object_csf,
20060 &wr_object->u.response);
20062 shdr_change_status =
20063 LPFC_CHANGE_STATUS_PCI_RESET;
20066 switch (shdr_change_status) {
20067 case (LPFC_CHANGE_STATUS_PHYS_DEV_RESET):
20068 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
20069 "3198 Firmware write complete: System "
20070 "reboot required to instantiate\n");
20072 case (LPFC_CHANGE_STATUS_FW_RESET):
20073 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
20074 "3199 Firmware write complete: Firmware"
20075 " reset required to instantiate\n");
20077 case (LPFC_CHANGE_STATUS_PORT_MIGRATION):
20078 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
20079 "3200 Firmware write complete: Port "
20080 "Migration or PCI Reset required to "
20083 case (LPFC_CHANGE_STATUS_PCI_RESET):
20084 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
20085 "3201 Firmware write complete: PCI "
20086 "Reset required to instantiate\n");
20092 if (!phba->sli4_hba.intr_enable)
20093 mempool_free(mbox, phba->mbox_mem_pool);
20094 else if (rc != MBX_TIMEOUT)
20095 mempool_free(mbox, phba->mbox_mem_pool);
20096 if (shdr_status || shdr_add_status || rc) {
20097 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20098 "3025 Write Object mailbox failed with "
20099 "status x%x add_status x%x, mbx status x%x\n",
20100 shdr_status, shdr_add_status, rc);
20102 *offset = shdr_add_status;
20104 *offset += wr_object->u.response.actual_write_length;
20109 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
20110 * @vport: pointer to vport data structure.
20112 * This function iterate through the mailboxq and clean up all REG_LOGIN
20113 * and REG_VPI mailbox commands associated with the vport. This function
20114 * is called when driver want to restart discovery of the vport due to
20115 * a Clear Virtual Link event.
20118 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
20120 struct lpfc_hba *phba = vport->phba;
20121 LPFC_MBOXQ_t *mb, *nextmb;
20122 struct lpfc_dmabuf *mp;
20123 struct lpfc_nodelist *ndlp;
20124 struct lpfc_nodelist *act_mbx_ndlp = NULL;
20125 LIST_HEAD(mbox_cmd_list);
20126 uint8_t restart_loop;
20128 /* Clean up internally queued mailbox commands with the vport */
20129 spin_lock_irq(&phba->hbalock);
20130 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
20131 if (mb->vport != vport)
20134 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
20135 (mb->u.mb.mbxCommand != MBX_REG_VPI))
20138 list_del(&mb->list);
20139 list_add_tail(&mb->list, &mbox_cmd_list);
20141 /* Clean up active mailbox command with the vport */
20142 mb = phba->sli.mbox_active;
20143 if (mb && (mb->vport == vport)) {
20144 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
20145 (mb->u.mb.mbxCommand == MBX_REG_VPI))
20146 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
20147 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
20148 act_mbx_ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
20149 /* Put reference count for delayed processing */
20150 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
20151 /* Unregister the RPI when mailbox complete */
20152 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
20155 /* Cleanup any mailbox completions which are not yet processed */
20158 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
20160 * If this mailox is already processed or it is
20161 * for another vport ignore it.
20163 if ((mb->vport != vport) ||
20164 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
20167 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
20168 (mb->u.mb.mbxCommand != MBX_REG_VPI))
20171 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
20172 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
20173 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
20174 /* Unregister the RPI when mailbox complete */
20175 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
20177 spin_unlock_irq(&phba->hbalock);
20178 spin_lock(&ndlp->lock);
20179 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
20180 spin_unlock(&ndlp->lock);
20181 spin_lock_irq(&phba->hbalock);
20185 } while (restart_loop);
20187 spin_unlock_irq(&phba->hbalock);
20189 /* Release the cleaned-up mailbox commands */
20190 while (!list_empty(&mbox_cmd_list)) {
20191 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
20192 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
20193 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
20195 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
20198 mb->ctx_buf = NULL;
20199 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
20200 mb->ctx_ndlp = NULL;
20202 spin_lock(&ndlp->lock);
20203 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
20204 spin_unlock(&ndlp->lock);
20205 lpfc_nlp_put(ndlp);
20208 mempool_free(mb, phba->mbox_mem_pool);
20211 /* Release the ndlp with the cleaned-up active mailbox command */
20212 if (act_mbx_ndlp) {
20213 spin_lock(&act_mbx_ndlp->lock);
20214 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
20215 spin_unlock(&act_mbx_ndlp->lock);
20216 lpfc_nlp_put(act_mbx_ndlp);
20221 * lpfc_drain_txq - Drain the txq
20222 * @phba: Pointer to HBA context object.
20224 * This function attempt to submit IOCBs on the txq
20225 * to the adapter. For SLI4 adapters, the txq contains
20226 * ELS IOCBs that have been deferred because the there
20227 * are no SGLs. This congestion can occur with large
20228 * vport counts during node discovery.
20232 lpfc_drain_txq(struct lpfc_hba *phba)
20234 LIST_HEAD(completions);
20235 struct lpfc_sli_ring *pring;
20236 struct lpfc_iocbq *piocbq = NULL;
20237 unsigned long iflags = 0;
20238 char *fail_msg = NULL;
20239 struct lpfc_sglq *sglq;
20240 union lpfc_wqe128 wqe;
20241 uint32_t txq_cnt = 0;
20242 struct lpfc_queue *wq;
20244 if (phba->link_flag & LS_MDS_LOOPBACK) {
20245 /* MDS WQE are posted only to first WQ*/
20246 wq = phba->sli4_hba.hdwq[0].io_wq;
20251 wq = phba->sli4_hba.els_wq;
20254 pring = lpfc_phba_elsring(phba);
20257 if (unlikely(!pring) || list_empty(&pring->txq))
20260 spin_lock_irqsave(&pring->ring_lock, iflags);
20261 list_for_each_entry(piocbq, &pring->txq, list) {
20265 if (txq_cnt > pring->txq_max)
20266 pring->txq_max = txq_cnt;
20268 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20270 while (!list_empty(&pring->txq)) {
20271 spin_lock_irqsave(&pring->ring_lock, iflags);
20273 piocbq = lpfc_sli_ringtx_get(phba, pring);
20275 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20276 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20277 "2823 txq empty and txq_cnt is %d\n ",
20281 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
20283 __lpfc_sli_ringtx_put(phba, pring, piocbq);
20284 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20289 /* The xri and iocb resources secured,
20290 * attempt to issue request
20292 piocbq->sli4_lxritag = sglq->sli4_lxritag;
20293 piocbq->sli4_xritag = sglq->sli4_xritag;
20294 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
20295 fail_msg = "to convert bpl to sgl";
20296 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
20297 fail_msg = "to convert iocb to wqe";
20298 else if (lpfc_sli4_wq_put(wq, &wqe))
20299 fail_msg = " - Wq is full";
20301 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
20304 /* Failed means we can't issue and need to cancel */
20305 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20306 "2822 IOCB failed %s iotag 0x%x "
20309 piocbq->iotag, piocbq->sli4_xritag);
20310 list_add_tail(&piocbq->list, &completions);
20312 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20315 /* Cancel all the IOCBs that cannot be issued */
20316 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
20317 IOERR_SLI_ABORTED);
20323 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
20324 * @phba: Pointer to HBA context object.
20325 * @pwqeq: Pointer to command WQE.
20326 * @sglq: Pointer to the scatter gather queue object.
20328 * This routine converts the bpl or bde that is in the WQE
20329 * to a sgl list for the sli4 hardware. The physical address
20330 * of the bpl/bde is converted back to a virtual address.
20331 * If the WQE contains a BPL then the list of BDE's is
20332 * converted to sli4_sge's. If the WQE contains a single
20333 * BDE then it is converted to a single sli_sge.
20334 * The WQE is still in cpu endianness so the contents of
20335 * the bpl can be used without byte swapping.
20337 * Returns valid XRI = Success, NO_XRI = Failure.
20340 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
20341 struct lpfc_sglq *sglq)
20343 uint16_t xritag = NO_XRI;
20344 struct ulp_bde64 *bpl = NULL;
20345 struct ulp_bde64 bde;
20346 struct sli4_sge *sgl = NULL;
20347 struct lpfc_dmabuf *dmabuf;
20348 union lpfc_wqe128 *wqe;
20351 uint32_t offset = 0; /* accumulated offset in the sg request list */
20352 int inbound = 0; /* number of sg reply entries inbound from firmware */
20355 if (!pwqeq || !sglq)
20358 sgl = (struct sli4_sge *)sglq->sgl;
20360 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
20362 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
20363 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
20364 return sglq->sli4_xritag;
20365 numBdes = pwqeq->rsvd2;
20367 /* The addrHigh and addrLow fields within the WQE
20368 * have not been byteswapped yet so there is no
20369 * need to swap them back.
20371 if (pwqeq->context3)
20372 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
20376 bpl = (struct ulp_bde64 *)dmabuf->virt;
20380 for (i = 0; i < numBdes; i++) {
20381 /* Should already be byte swapped. */
20382 sgl->addr_hi = bpl->addrHigh;
20383 sgl->addr_lo = bpl->addrLow;
20385 sgl->word2 = le32_to_cpu(sgl->word2);
20386 if ((i+1) == numBdes)
20387 bf_set(lpfc_sli4_sge_last, sgl, 1);
20389 bf_set(lpfc_sli4_sge_last, sgl, 0);
20390 /* swap the size field back to the cpu so we
20391 * can assign it to the sgl.
20393 bde.tus.w = le32_to_cpu(bpl->tus.w);
20394 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
20395 /* The offsets in the sgl need to be accumulated
20396 * separately for the request and reply lists.
20397 * The request is always first, the reply follows.
20400 case CMD_GEN_REQUEST64_WQE:
20401 /* add up the reply sg entries */
20402 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
20404 /* first inbound? reset the offset */
20407 bf_set(lpfc_sli4_sge_offset, sgl, offset);
20408 bf_set(lpfc_sli4_sge_type, sgl,
20409 LPFC_SGE_TYPE_DATA);
20410 offset += bde.tus.f.bdeSize;
20412 case CMD_FCP_TRSP64_WQE:
20413 bf_set(lpfc_sli4_sge_offset, sgl, 0);
20414 bf_set(lpfc_sli4_sge_type, sgl,
20415 LPFC_SGE_TYPE_DATA);
20417 case CMD_FCP_TSEND64_WQE:
20418 case CMD_FCP_TRECEIVE64_WQE:
20419 bf_set(lpfc_sli4_sge_type, sgl,
20420 bpl->tus.f.bdeFlags);
20424 offset += bde.tus.f.bdeSize;
20425 bf_set(lpfc_sli4_sge_offset, sgl, offset);
20428 sgl->word2 = cpu_to_le32(sgl->word2);
20432 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
20433 /* The addrHigh and addrLow fields of the BDE have not
20434 * been byteswapped yet so they need to be swapped
20435 * before putting them in the sgl.
20437 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
20438 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
20439 sgl->word2 = le32_to_cpu(sgl->word2);
20440 bf_set(lpfc_sli4_sge_last, sgl, 1);
20441 sgl->word2 = cpu_to_le32(sgl->word2);
20442 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
20444 return sglq->sli4_xritag;
20448 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
20449 * @phba: Pointer to HBA context object.
20450 * @qp: Pointer to HDW queue.
20451 * @pwqe: Pointer to command WQE.
20454 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
20455 struct lpfc_iocbq *pwqe)
20457 union lpfc_wqe128 *wqe = &pwqe->wqe;
20458 struct lpfc_async_xchg_ctx *ctxp;
20459 struct lpfc_queue *wq;
20460 struct lpfc_sglq *sglq;
20461 struct lpfc_sli_ring *pring;
20462 unsigned long iflags;
20465 /* NVME_LS and NVME_LS ABTS requests. */
20466 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
20467 pring = phba->sli4_hba.nvmels_wq->pring;
20468 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
20470 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
20472 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20475 pwqe->sli4_lxritag = sglq->sli4_lxritag;
20476 pwqe->sli4_xritag = sglq->sli4_xritag;
20477 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
20478 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20481 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
20482 pwqe->sli4_xritag);
20483 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
20485 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20489 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
20490 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20492 lpfc_sli4_poll_eq(qp->hba_eq, LPFC_POLL_FASTPATH);
20496 /* NVME_FCREQ and NVME_ABTS requests */
20497 if (pwqe->iocb_flag & LPFC_IO_NVME ||
20498 pwqe->iocb_flag & LPFC_IO_FCP) {
20499 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
20503 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
20505 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
20507 ret = lpfc_sli4_wq_put(wq, wqe);
20509 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20512 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
20513 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20515 lpfc_sli4_poll_eq(qp->hba_eq, LPFC_POLL_FASTPATH);
20519 /* NVMET requests */
20520 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
20521 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
20525 ctxp = pwqe->context2;
20526 sglq = ctxp->ctxbuf->sglq;
20527 if (pwqe->sli4_xritag == NO_XRI) {
20528 pwqe->sli4_lxritag = sglq->sli4_lxritag;
20529 pwqe->sli4_xritag = sglq->sli4_xritag;
20531 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
20532 pwqe->sli4_xritag);
20533 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
20535 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
20537 ret = lpfc_sli4_wq_put(wq, wqe);
20539 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20542 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
20543 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20545 lpfc_sli4_poll_eq(qp->hba_eq, LPFC_POLL_FASTPATH);
20552 * lpfc_sli4_issue_abort_iotag - SLI-4 WQE init & issue for the Abort
20553 * @phba: Pointer to HBA context object.
20554 * @cmdiocb: Pointer to driver command iocb object.
20555 * @cmpl: completion function.
20557 * Fill the appropriate fields for the abort WQE and call
20558 * internal routine lpfc_sli4_issue_wqe to send the WQE
20559 * This function is called with hbalock held and no ring_lock held.
20561 * RETURNS 0 - SUCCESS
20565 lpfc_sli4_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
20568 struct lpfc_vport *vport = cmdiocb->vport;
20569 struct lpfc_iocbq *abtsiocb = NULL;
20570 union lpfc_wqe128 *abtswqe;
20571 struct lpfc_io_buf *lpfc_cmd;
20572 int retval = IOCB_ERROR;
20573 u16 xritag = cmdiocb->sli4_xritag;
20576 * The scsi command can not be in txq and it is in flight because the
20577 * pCmd is still pointing at the SCSI command we have to abort. There
20578 * is no need to search the txcmplq. Just send an abort to the FW.
20581 abtsiocb = __lpfc_sli_get_iocbq(phba);
20583 return WQE_NORESOURCE;
20585 /* Indicate the IO is being aborted by the driver. */
20586 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
20588 abtswqe = &abtsiocb->wqe;
20589 memset(abtswqe, 0, sizeof(*abtswqe));
20591 if (lpfc_is_link_up(phba))
20592 bf_set(abort_cmd_ia, &abtswqe->abort_cmd, 1);
20594 bf_set(abort_cmd_ia, &abtswqe->abort_cmd, 0);
20595 bf_set(abort_cmd_criteria, &abtswqe->abort_cmd, T_XRI_TAG);
20596 abtswqe->abort_cmd.rsrvd5 = 0;
20597 abtswqe->abort_cmd.wqe_com.abort_tag = xritag;
20598 bf_set(wqe_reqtag, &abtswqe->abort_cmd.wqe_com, abtsiocb->iotag);
20599 bf_set(wqe_cmnd, &abtswqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
20600 bf_set(wqe_xri_tag, &abtswqe->generic.wqe_com, 0);
20601 bf_set(wqe_qosd, &abtswqe->abort_cmd.wqe_com, 1);
20602 bf_set(wqe_lenloc, &abtswqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
20603 bf_set(wqe_cmd_type, &abtswqe->abort_cmd.wqe_com, OTHER_COMMAND);
20605 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
20606 abtsiocb->hba_wqidx = cmdiocb->hba_wqidx;
20607 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
20608 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
20609 abtsiocb->iocb_flag |= LPFC_IO_FCP;
20610 if (cmdiocb->iocb_flag & LPFC_IO_NVME)
20611 abtsiocb->iocb_flag |= LPFC_IO_NVME;
20612 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
20613 abtsiocb->iocb_flag |= LPFC_IO_FOF;
20614 abtsiocb->vport = vport;
20615 abtsiocb->wqe_cmpl = cmpl;
20617 lpfc_cmd = container_of(cmdiocb, struct lpfc_io_buf, cur_iocbq);
20618 retval = lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, abtsiocb);
20620 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
20621 "0359 Abort xri x%x, original iotag x%x, "
20622 "abort cmd iotag x%x retval x%x\n",
20623 xritag, cmdiocb->iotag, abtsiocb->iotag, retval);
20626 cmdiocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
20627 __lpfc_sli_release_iocbq(phba, abtsiocb);
20633 #ifdef LPFC_MXP_STAT
20635 * lpfc_snapshot_mxp - Snapshot pbl, pvt and busy count
20636 * @phba: pointer to lpfc hba data structure.
20637 * @hwqid: belong to which HWQ.
20639 * The purpose of this routine is to take a snapshot of pbl, pvt and busy count
20640 * 15 seconds after a test case is running.
20642 * The user should call lpfc_debugfs_multixripools_write before running a test
20643 * case to clear stat_snapshot_taken. Then the user starts a test case. During
20644 * test case is running, stat_snapshot_taken is incremented by 1 every time when
20645 * this routine is called from heartbeat timer. When stat_snapshot_taken is
20646 * equal to LPFC_MXP_SNAPSHOT_TAKEN, a snapshot is taken.
20648 void lpfc_snapshot_mxp(struct lpfc_hba *phba, u32 hwqid)
20650 struct lpfc_sli4_hdw_queue *qp;
20651 struct lpfc_multixri_pool *multixri_pool;
20652 struct lpfc_pvt_pool *pvt_pool;
20653 struct lpfc_pbl_pool *pbl_pool;
20656 qp = &phba->sli4_hba.hdwq[hwqid];
20657 multixri_pool = qp->p_multixri_pool;
20658 if (!multixri_pool)
20661 if (multixri_pool->stat_snapshot_taken == LPFC_MXP_SNAPSHOT_TAKEN) {
20662 pvt_pool = &qp->p_multixri_pool->pvt_pool;
20663 pbl_pool = &qp->p_multixri_pool->pbl_pool;
20664 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
20666 multixri_pool->stat_pbl_count = pbl_pool->count;
20667 multixri_pool->stat_pvt_count = pvt_pool->count;
20668 multixri_pool->stat_busy_count = txcmplq_cnt;
20671 multixri_pool->stat_snapshot_taken++;
20676 * lpfc_adjust_pvt_pool_count - Adjust private pool count
20677 * @phba: pointer to lpfc hba data structure.
20678 * @hwqid: belong to which HWQ.
20680 * This routine moves some XRIs from private to public pool when private pool
20683 void lpfc_adjust_pvt_pool_count(struct lpfc_hba *phba, u32 hwqid)
20685 struct lpfc_multixri_pool *multixri_pool;
20687 u32 prev_io_req_count;
20689 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
20690 if (!multixri_pool)
20692 io_req_count = multixri_pool->io_req_count;
20693 prev_io_req_count = multixri_pool->prev_io_req_count;
20695 if (prev_io_req_count != io_req_count) {
20696 /* Private pool is busy */
20697 multixri_pool->prev_io_req_count = io_req_count;
20699 /* Private pool is not busy.
20700 * Move XRIs from private to public pool.
20702 lpfc_move_xri_pvt_to_pbl(phba, hwqid);
20707 * lpfc_adjust_high_watermark - Adjust high watermark
20708 * @phba: pointer to lpfc hba data structure.
20709 * @hwqid: belong to which HWQ.
20711 * This routine sets high watermark as number of outstanding XRIs,
20712 * but make sure the new value is between xri_limit/2 and xri_limit.
20714 void lpfc_adjust_high_watermark(struct lpfc_hba *phba, u32 hwqid)
20722 struct lpfc_multixri_pool *multixri_pool;
20723 struct lpfc_sli4_hdw_queue *qp;
20725 qp = &phba->sli4_hba.hdwq[hwqid];
20726 multixri_pool = qp->p_multixri_pool;
20727 if (!multixri_pool)
20729 xri_limit = multixri_pool->xri_limit;
20731 watermark_max = xri_limit;
20732 watermark_min = xri_limit / 2;
20734 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
20735 abts_io_bufs = qp->abts_scsi_io_bufs;
20736 abts_io_bufs += qp->abts_nvme_io_bufs;
20738 new_watermark = txcmplq_cnt + abts_io_bufs;
20739 new_watermark = min(watermark_max, new_watermark);
20740 new_watermark = max(watermark_min, new_watermark);
20741 multixri_pool->pvt_pool.high_watermark = new_watermark;
20743 #ifdef LPFC_MXP_STAT
20744 multixri_pool->stat_max_hwm = max(multixri_pool->stat_max_hwm,
20750 * lpfc_move_xri_pvt_to_pbl - Move some XRIs from private to public pool
20751 * @phba: pointer to lpfc hba data structure.
20752 * @hwqid: belong to which HWQ.
20754 * This routine is called from hearbeat timer when pvt_pool is idle.
20755 * All free XRIs are moved from private to public pool on hwqid with 2 steps.
20756 * The first step moves (all - low_watermark) amount of XRIs.
20757 * The second step moves the rest of XRIs.
20759 void lpfc_move_xri_pvt_to_pbl(struct lpfc_hba *phba, u32 hwqid)
20761 struct lpfc_pbl_pool *pbl_pool;
20762 struct lpfc_pvt_pool *pvt_pool;
20763 struct lpfc_sli4_hdw_queue *qp;
20764 struct lpfc_io_buf *lpfc_ncmd;
20765 struct lpfc_io_buf *lpfc_ncmd_next;
20766 unsigned long iflag;
20767 struct list_head tmp_list;
20770 qp = &phba->sli4_hba.hdwq[hwqid];
20771 pbl_pool = &qp->p_multixri_pool->pbl_pool;
20772 pvt_pool = &qp->p_multixri_pool->pvt_pool;
20775 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag, qp, mv_to_pub_pool);
20776 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_from_pvt_pool);
20778 if (pvt_pool->count > pvt_pool->low_watermark) {
20779 /* Step 1: move (all - low_watermark) from pvt_pool
20783 /* Move low watermark of bufs from pvt_pool to tmp_list */
20784 INIT_LIST_HEAD(&tmp_list);
20785 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
20786 &pvt_pool->list, list) {
20787 list_move_tail(&lpfc_ncmd->list, &tmp_list);
20789 if (tmp_count >= pvt_pool->low_watermark)
20793 /* Move all bufs from pvt_pool to pbl_pool */
20794 list_splice_init(&pvt_pool->list, &pbl_pool->list);
20796 /* Move all bufs from tmp_list to pvt_pool */
20797 list_splice(&tmp_list, &pvt_pool->list);
20799 pbl_pool->count += (pvt_pool->count - tmp_count);
20800 pvt_pool->count = tmp_count;
20802 /* Step 2: move the rest from pvt_pool to pbl_pool */
20803 list_splice_init(&pvt_pool->list, &pbl_pool->list);
20804 pbl_pool->count += pvt_pool->count;
20805 pvt_pool->count = 0;
20808 spin_unlock(&pvt_pool->lock);
20809 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20813 * _lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
20814 * @phba: pointer to lpfc hba data structure
20815 * @qp: pointer to HDW queue
20816 * @pbl_pool: specified public free XRI pool
20817 * @pvt_pool: specified private free XRI pool
20818 * @count: number of XRIs to move
20820 * This routine tries to move some free common bufs from the specified pbl_pool
20821 * to the specified pvt_pool. It might move less than count XRIs if there's not
20822 * enough in public pool.
20825 * true - if XRIs are successfully moved from the specified pbl_pool to the
20826 * specified pvt_pool
20827 * false - if the specified pbl_pool is empty or locked by someone else
20830 _lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
20831 struct lpfc_pbl_pool *pbl_pool,
20832 struct lpfc_pvt_pool *pvt_pool, u32 count)
20834 struct lpfc_io_buf *lpfc_ncmd;
20835 struct lpfc_io_buf *lpfc_ncmd_next;
20836 unsigned long iflag;
20839 ret = spin_trylock_irqsave(&pbl_pool->lock, iflag);
20841 if (pbl_pool->count) {
20842 /* Move a batch of XRIs from public to private pool */
20843 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_to_pvt_pool);
20844 list_for_each_entry_safe(lpfc_ncmd,
20848 list_move_tail(&lpfc_ncmd->list,
20857 spin_unlock(&pvt_pool->lock);
20858 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20861 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20868 * lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
20869 * @phba: pointer to lpfc hba data structure.
20870 * @hwqid: belong to which HWQ.
20871 * @count: number of XRIs to move
20873 * This routine tries to find some free common bufs in one of public pools with
20874 * Round Robin method. The search always starts from local hwqid, then the next
20875 * HWQ which was found last time (rrb_next_hwqid). Once a public pool is found,
20876 * a batch of free common bufs are moved to private pool on hwqid.
20877 * It might move less than count XRIs if there's not enough in public pool.
20879 void lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, u32 hwqid, u32 count)
20881 struct lpfc_multixri_pool *multixri_pool;
20882 struct lpfc_multixri_pool *next_multixri_pool;
20883 struct lpfc_pvt_pool *pvt_pool;
20884 struct lpfc_pbl_pool *pbl_pool;
20885 struct lpfc_sli4_hdw_queue *qp;
20890 qp = &phba->sli4_hba.hdwq[hwqid];
20891 multixri_pool = qp->p_multixri_pool;
20892 pvt_pool = &multixri_pool->pvt_pool;
20893 pbl_pool = &multixri_pool->pbl_pool;
20895 /* Check if local pbl_pool is available */
20896 ret = _lpfc_move_xri_pbl_to_pvt(phba, qp, pbl_pool, pvt_pool, count);
20898 #ifdef LPFC_MXP_STAT
20899 multixri_pool->local_pbl_hit_count++;
20904 hwq_count = phba->cfg_hdw_queue;
20906 /* Get the next hwqid which was found last time */
20907 next_hwqid = multixri_pool->rrb_next_hwqid;
20910 /* Go to next hwq */
20911 next_hwqid = (next_hwqid + 1) % hwq_count;
20913 next_multixri_pool =
20914 phba->sli4_hba.hdwq[next_hwqid].p_multixri_pool;
20915 pbl_pool = &next_multixri_pool->pbl_pool;
20917 /* Check if the public free xri pool is available */
20918 ret = _lpfc_move_xri_pbl_to_pvt(
20919 phba, qp, pbl_pool, pvt_pool, count);
20921 /* Exit while-loop if success or all hwqid are checked */
20922 } while (!ret && next_hwqid != multixri_pool->rrb_next_hwqid);
20924 /* Starting point for the next time */
20925 multixri_pool->rrb_next_hwqid = next_hwqid;
20928 /* stats: all public pools are empty*/
20929 multixri_pool->pbl_empty_count++;
20932 #ifdef LPFC_MXP_STAT
20934 if (next_hwqid == hwqid)
20935 multixri_pool->local_pbl_hit_count++;
20937 multixri_pool->other_pbl_hit_count++;
20943 * lpfc_keep_pvt_pool_above_lowwm - Keep pvt_pool above low watermark
20944 * @phba: pointer to lpfc hba data structure.
20945 * @hwqid: belong to which HWQ.
20947 * This routine get a batch of XRIs from pbl_pool if pvt_pool is less than
20950 void lpfc_keep_pvt_pool_above_lowwm(struct lpfc_hba *phba, u32 hwqid)
20952 struct lpfc_multixri_pool *multixri_pool;
20953 struct lpfc_pvt_pool *pvt_pool;
20955 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
20956 pvt_pool = &multixri_pool->pvt_pool;
20958 if (pvt_pool->count < pvt_pool->low_watermark)
20959 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
20963 * lpfc_release_io_buf - Return one IO buf back to free pool
20964 * @phba: pointer to lpfc hba data structure.
20965 * @lpfc_ncmd: IO buf to be returned.
20966 * @qp: belong to which HWQ.
20968 * This routine returns one IO buf back to free pool. If this is an urgent IO,
20969 * the IO buf is returned to expedite pool. If cfg_xri_rebalancing==1,
20970 * the IO buf is returned to pbl_pool or pvt_pool based on watermark and
20971 * xri_limit. If cfg_xri_rebalancing==0, the IO buf is returned to
20972 * lpfc_io_buf_list_put.
20974 void lpfc_release_io_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_ncmd,
20975 struct lpfc_sli4_hdw_queue *qp)
20977 unsigned long iflag;
20978 struct lpfc_pbl_pool *pbl_pool;
20979 struct lpfc_pvt_pool *pvt_pool;
20980 struct lpfc_epd_pool *epd_pool;
20986 /* MUST zero fields if buffer is reused by another protocol */
20987 lpfc_ncmd->nvmeCmd = NULL;
20988 lpfc_ncmd->cur_iocbq.wqe_cmpl = NULL;
20989 lpfc_ncmd->cur_iocbq.iocb_cmpl = NULL;
20991 if (phba->cfg_xpsgl && !phba->nvmet_support &&
20992 !list_empty(&lpfc_ncmd->dma_sgl_xtra_list))
20993 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
20995 if (!list_empty(&lpfc_ncmd->dma_cmd_rsp_list))
20996 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
20998 if (phba->cfg_xri_rebalancing) {
20999 if (lpfc_ncmd->expedite) {
21000 /* Return to expedite pool */
21001 epd_pool = &phba->epd_pool;
21002 spin_lock_irqsave(&epd_pool->lock, iflag);
21003 list_add_tail(&lpfc_ncmd->list, &epd_pool->list);
21005 spin_unlock_irqrestore(&epd_pool->lock, iflag);
21009 /* Avoid invalid access if an IO sneaks in and is being rejected
21010 * just _after_ xri pools are destroyed in lpfc_offline.
21011 * Nothing much can be done at this point.
21013 if (!qp->p_multixri_pool)
21016 pbl_pool = &qp->p_multixri_pool->pbl_pool;
21017 pvt_pool = &qp->p_multixri_pool->pvt_pool;
21019 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
21020 abts_io_bufs = qp->abts_scsi_io_bufs;
21021 abts_io_bufs += qp->abts_nvme_io_bufs;
21023 xri_owned = pvt_pool->count + txcmplq_cnt + abts_io_bufs;
21024 xri_limit = qp->p_multixri_pool->xri_limit;
21026 #ifdef LPFC_MXP_STAT
21027 if (xri_owned <= xri_limit)
21028 qp->p_multixri_pool->below_limit_count++;
21030 qp->p_multixri_pool->above_limit_count++;
21033 /* XRI goes to either public or private free xri pool
21034 * based on watermark and xri_limit
21036 if ((pvt_pool->count < pvt_pool->low_watermark) ||
21037 (xri_owned < xri_limit &&
21038 pvt_pool->count < pvt_pool->high_watermark)) {
21039 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag,
21040 qp, free_pvt_pool);
21041 list_add_tail(&lpfc_ncmd->list,
21044 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
21046 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag,
21047 qp, free_pub_pool);
21048 list_add_tail(&lpfc_ncmd->list,
21051 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
21054 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag,
21056 list_add_tail(&lpfc_ncmd->list,
21057 &qp->lpfc_io_buf_list_put);
21059 spin_unlock_irqrestore(&qp->io_buf_list_put_lock,
21065 * lpfc_get_io_buf_from_private_pool - Get one free IO buf from private pool
21066 * @phba: pointer to lpfc hba data structure.
21067 * @qp: pointer to HDW queue
21068 * @pvt_pool: pointer to private pool data structure.
21069 * @ndlp: pointer to lpfc nodelist data structure.
21071 * This routine tries to get one free IO buf from private pool.
21074 * pointer to one free IO buf - if private pool is not empty
21075 * NULL - if private pool is empty
21077 static struct lpfc_io_buf *
21078 lpfc_get_io_buf_from_private_pool(struct lpfc_hba *phba,
21079 struct lpfc_sli4_hdw_queue *qp,
21080 struct lpfc_pvt_pool *pvt_pool,
21081 struct lpfc_nodelist *ndlp)
21083 struct lpfc_io_buf *lpfc_ncmd;
21084 struct lpfc_io_buf *lpfc_ncmd_next;
21085 unsigned long iflag;
21087 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag, qp, alloc_pvt_pool);
21088 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
21089 &pvt_pool->list, list) {
21090 if (lpfc_test_rrq_active(
21091 phba, ndlp, lpfc_ncmd->cur_iocbq.sli4_lxritag))
21093 list_del(&lpfc_ncmd->list);
21095 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
21098 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
21104 * lpfc_get_io_buf_from_expedite_pool - Get one free IO buf from expedite pool
21105 * @phba: pointer to lpfc hba data structure.
21107 * This routine tries to get one free IO buf from expedite pool.
21110 * pointer to one free IO buf - if expedite pool is not empty
21111 * NULL - if expedite pool is empty
21113 static struct lpfc_io_buf *
21114 lpfc_get_io_buf_from_expedite_pool(struct lpfc_hba *phba)
21116 struct lpfc_io_buf *lpfc_ncmd;
21117 struct lpfc_io_buf *lpfc_ncmd_next;
21118 unsigned long iflag;
21119 struct lpfc_epd_pool *epd_pool;
21121 epd_pool = &phba->epd_pool;
21124 spin_lock_irqsave(&epd_pool->lock, iflag);
21125 if (epd_pool->count > 0) {
21126 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
21127 &epd_pool->list, list) {
21128 list_del(&lpfc_ncmd->list);
21133 spin_unlock_irqrestore(&epd_pool->lock, iflag);
21139 * lpfc_get_io_buf_from_multixri_pools - Get one free IO bufs
21140 * @phba: pointer to lpfc hba data structure.
21141 * @ndlp: pointer to lpfc nodelist data structure.
21142 * @hwqid: belong to which HWQ
21143 * @expedite: 1 means this request is urgent.
21145 * This routine will do the following actions and then return a pointer to
21148 * 1. If private free xri count is empty, move some XRIs from public to
21150 * 2. Get one XRI from private free xri pool.
21151 * 3. If we fail to get one from pvt_pool and this is an expedite request,
21152 * get one free xri from expedite pool.
21154 * Note: ndlp is only used on SCSI side for RRQ testing.
21155 * The caller should pass NULL for ndlp on NVME side.
21158 * pointer to one free IO buf - if private pool is not empty
21159 * NULL - if private pool is empty
21161 static struct lpfc_io_buf *
21162 lpfc_get_io_buf_from_multixri_pools(struct lpfc_hba *phba,
21163 struct lpfc_nodelist *ndlp,
21164 int hwqid, int expedite)
21166 struct lpfc_sli4_hdw_queue *qp;
21167 struct lpfc_multixri_pool *multixri_pool;
21168 struct lpfc_pvt_pool *pvt_pool;
21169 struct lpfc_io_buf *lpfc_ncmd;
21171 qp = &phba->sli4_hba.hdwq[hwqid];
21173 multixri_pool = qp->p_multixri_pool;
21174 pvt_pool = &multixri_pool->pvt_pool;
21175 multixri_pool->io_req_count++;
21177 /* If pvt_pool is empty, move some XRIs from public to private pool */
21178 if (pvt_pool->count == 0)
21179 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
21181 /* Get one XRI from private free xri pool */
21182 lpfc_ncmd = lpfc_get_io_buf_from_private_pool(phba, qp, pvt_pool, ndlp);
21185 lpfc_ncmd->hdwq = qp;
21186 lpfc_ncmd->hdwq_no = hwqid;
21187 } else if (expedite) {
21188 /* If we fail to get one from pvt_pool and this is an expedite
21189 * request, get one free xri from expedite pool.
21191 lpfc_ncmd = lpfc_get_io_buf_from_expedite_pool(phba);
21197 static inline struct lpfc_io_buf *
21198 lpfc_io_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int idx)
21200 struct lpfc_sli4_hdw_queue *qp;
21201 struct lpfc_io_buf *lpfc_cmd, *lpfc_cmd_next;
21203 qp = &phba->sli4_hba.hdwq[idx];
21204 list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next,
21205 &qp->lpfc_io_buf_list_get, list) {
21206 if (lpfc_test_rrq_active(phba, ndlp,
21207 lpfc_cmd->cur_iocbq.sli4_lxritag))
21210 if (lpfc_cmd->flags & LPFC_SBUF_NOT_POSTED)
21213 list_del_init(&lpfc_cmd->list);
21215 lpfc_cmd->hdwq = qp;
21216 lpfc_cmd->hdwq_no = idx;
21223 * lpfc_get_io_buf - Get one IO buffer from free pool
21224 * @phba: The HBA for which this call is being executed.
21225 * @ndlp: pointer to lpfc nodelist data structure.
21226 * @hwqid: belong to which HWQ
21227 * @expedite: 1 means this request is urgent.
21229 * This routine gets one IO buffer from free pool. If cfg_xri_rebalancing==1,
21230 * removes a IO buffer from multiXRI pools. If cfg_xri_rebalancing==0, removes
21231 * a IO buffer from head of @hdwq io_buf_list and returns to caller.
21233 * Note: ndlp is only used on SCSI side for RRQ testing.
21234 * The caller should pass NULL for ndlp on NVME side.
21238 * Pointer to lpfc_io_buf - Success
21240 struct lpfc_io_buf *lpfc_get_io_buf(struct lpfc_hba *phba,
21241 struct lpfc_nodelist *ndlp,
21242 u32 hwqid, int expedite)
21244 struct lpfc_sli4_hdw_queue *qp;
21245 unsigned long iflag;
21246 struct lpfc_io_buf *lpfc_cmd;
21248 qp = &phba->sli4_hba.hdwq[hwqid];
21251 if (phba->cfg_xri_rebalancing)
21252 lpfc_cmd = lpfc_get_io_buf_from_multixri_pools(
21253 phba, ndlp, hwqid, expedite);
21255 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_get_lock, iflag,
21256 qp, alloc_xri_get);
21257 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite)
21258 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
21260 lpfc_qp_spin_lock(&qp->io_buf_list_put_lock,
21261 qp, alloc_xri_put);
21262 list_splice(&qp->lpfc_io_buf_list_put,
21263 &qp->lpfc_io_buf_list_get);
21264 qp->get_io_bufs += qp->put_io_bufs;
21265 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
21266 qp->put_io_bufs = 0;
21267 spin_unlock(&qp->io_buf_list_put_lock);
21268 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT ||
21270 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
21272 spin_unlock_irqrestore(&qp->io_buf_list_get_lock, iflag);
21279 * lpfc_get_sgl_per_hdwq - Get one SGL chunk from hdwq's pool
21280 * @phba: The HBA for which this call is being executed.
21281 * @lpfc_buf: IO buf structure to append the SGL chunk
21283 * This routine gets one SGL chunk buffer from hdwq's SGL chunk pool,
21284 * and will allocate an SGL chunk if the pool is empty.
21288 * Pointer to sli4_hybrid_sgl - Success
21290 struct sli4_hybrid_sgl *
21291 lpfc_get_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
21293 struct sli4_hybrid_sgl *list_entry = NULL;
21294 struct sli4_hybrid_sgl *tmp = NULL;
21295 struct sli4_hybrid_sgl *allocated_sgl = NULL;
21296 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
21297 struct list_head *buf_list = &hdwq->sgl_list;
21298 unsigned long iflags;
21300 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
21302 if (likely(!list_empty(buf_list))) {
21303 /* break off 1 chunk from the sgl_list */
21304 list_for_each_entry_safe(list_entry, tmp,
21305 buf_list, list_node) {
21306 list_move_tail(&list_entry->list_node,
21307 &lpfc_buf->dma_sgl_xtra_list);
21311 /* allocate more */
21312 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
21313 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
21314 cpu_to_node(hdwq->io_wq->chann));
21316 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
21317 "8353 error kmalloc memory for HDWQ "
21319 lpfc_buf->hdwq_no, __func__);
21323 tmp->dma_sgl = dma_pool_alloc(phba->lpfc_sg_dma_buf_pool,
21324 GFP_ATOMIC, &tmp->dma_phys_sgl);
21325 if (!tmp->dma_sgl) {
21326 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
21327 "8354 error pool_alloc memory for HDWQ "
21329 lpfc_buf->hdwq_no, __func__);
21334 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
21335 list_add_tail(&tmp->list_node, &lpfc_buf->dma_sgl_xtra_list);
21338 allocated_sgl = list_last_entry(&lpfc_buf->dma_sgl_xtra_list,
21339 struct sli4_hybrid_sgl,
21342 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
21344 return allocated_sgl;
21348 * lpfc_put_sgl_per_hdwq - Put one SGL chunk into hdwq pool
21349 * @phba: The HBA for which this call is being executed.
21350 * @lpfc_buf: IO buf structure with the SGL chunk
21352 * This routine puts one SGL chunk buffer into hdwq's SGL chunk pool.
21359 lpfc_put_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
21362 struct sli4_hybrid_sgl *list_entry = NULL;
21363 struct sli4_hybrid_sgl *tmp = NULL;
21364 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
21365 struct list_head *buf_list = &hdwq->sgl_list;
21366 unsigned long iflags;
21368 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
21370 if (likely(!list_empty(&lpfc_buf->dma_sgl_xtra_list))) {
21371 list_for_each_entry_safe(list_entry, tmp,
21372 &lpfc_buf->dma_sgl_xtra_list,
21374 list_move_tail(&list_entry->list_node,
21381 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
21386 * lpfc_free_sgl_per_hdwq - Free all SGL chunks of hdwq pool
21387 * @phba: phba object
21388 * @hdwq: hdwq to cleanup sgl buff resources on
21390 * This routine frees all SGL chunks of hdwq SGL chunk pool.
21396 lpfc_free_sgl_per_hdwq(struct lpfc_hba *phba,
21397 struct lpfc_sli4_hdw_queue *hdwq)
21399 struct list_head *buf_list = &hdwq->sgl_list;
21400 struct sli4_hybrid_sgl *list_entry = NULL;
21401 struct sli4_hybrid_sgl *tmp = NULL;
21402 unsigned long iflags;
21404 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
21406 /* Free sgl pool */
21407 list_for_each_entry_safe(list_entry, tmp,
21408 buf_list, list_node) {
21409 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
21410 list_entry->dma_sgl,
21411 list_entry->dma_phys_sgl);
21412 list_del(&list_entry->list_node);
21416 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
21420 * lpfc_get_cmd_rsp_buf_per_hdwq - Get one CMD/RSP buffer from hdwq
21421 * @phba: The HBA for which this call is being executed.
21422 * @lpfc_buf: IO buf structure to attach the CMD/RSP buffer
21424 * This routine gets one CMD/RSP buffer from hdwq's CMD/RSP pool,
21425 * and will allocate an CMD/RSP buffer if the pool is empty.
21429 * Pointer to fcp_cmd_rsp_buf - Success
21431 struct fcp_cmd_rsp_buf *
21432 lpfc_get_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
21433 struct lpfc_io_buf *lpfc_buf)
21435 struct fcp_cmd_rsp_buf *list_entry = NULL;
21436 struct fcp_cmd_rsp_buf *tmp = NULL;
21437 struct fcp_cmd_rsp_buf *allocated_buf = NULL;
21438 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
21439 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
21440 unsigned long iflags;
21442 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
21444 if (likely(!list_empty(buf_list))) {
21445 /* break off 1 chunk from the list */
21446 list_for_each_entry_safe(list_entry, tmp,
21449 list_move_tail(&list_entry->list_node,
21450 &lpfc_buf->dma_cmd_rsp_list);
21454 /* allocate more */
21455 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
21456 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
21457 cpu_to_node(hdwq->io_wq->chann));
21459 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
21460 "8355 error kmalloc memory for HDWQ "
21462 lpfc_buf->hdwq_no, __func__);
21466 tmp->fcp_cmnd = dma_pool_alloc(phba->lpfc_cmd_rsp_buf_pool,
21468 &tmp->fcp_cmd_rsp_dma_handle);
21470 if (!tmp->fcp_cmnd) {
21471 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
21472 "8356 error pool_alloc memory for HDWQ "
21474 lpfc_buf->hdwq_no, __func__);
21479 tmp->fcp_rsp = (struct fcp_rsp *)((uint8_t *)tmp->fcp_cmnd +
21480 sizeof(struct fcp_cmnd));
21482 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
21483 list_add_tail(&tmp->list_node, &lpfc_buf->dma_cmd_rsp_list);
21486 allocated_buf = list_last_entry(&lpfc_buf->dma_cmd_rsp_list,
21487 struct fcp_cmd_rsp_buf,
21490 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
21492 return allocated_buf;
21496 * lpfc_put_cmd_rsp_buf_per_hdwq - Put one CMD/RSP buffer into hdwq pool
21497 * @phba: The HBA for which this call is being executed.
21498 * @lpfc_buf: IO buf structure with the CMD/RSP buf
21500 * This routine puts one CMD/RSP buffer into executing CPU's CMD/RSP pool.
21507 lpfc_put_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
21508 struct lpfc_io_buf *lpfc_buf)
21511 struct fcp_cmd_rsp_buf *list_entry = NULL;
21512 struct fcp_cmd_rsp_buf *tmp = NULL;
21513 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
21514 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
21515 unsigned long iflags;
21517 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
21519 if (likely(!list_empty(&lpfc_buf->dma_cmd_rsp_list))) {
21520 list_for_each_entry_safe(list_entry, tmp,
21521 &lpfc_buf->dma_cmd_rsp_list,
21523 list_move_tail(&list_entry->list_node,
21530 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
21535 * lpfc_free_cmd_rsp_buf_per_hdwq - Free all CMD/RSP chunks of hdwq pool
21536 * @phba: phba object
21537 * @hdwq: hdwq to cleanup cmd rsp buff resources on
21539 * This routine frees all CMD/RSP buffers of hdwq's CMD/RSP buf pool.
21545 lpfc_free_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
21546 struct lpfc_sli4_hdw_queue *hdwq)
21548 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
21549 struct fcp_cmd_rsp_buf *list_entry = NULL;
21550 struct fcp_cmd_rsp_buf *tmp = NULL;
21551 unsigned long iflags;
21553 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
21555 /* Free cmd_rsp buf pool */
21556 list_for_each_entry_safe(list_entry, tmp,
21559 dma_pool_free(phba->lpfc_cmd_rsp_buf_pool,
21560 list_entry->fcp_cmnd,
21561 list_entry->fcp_cmd_rsp_dma_handle);
21562 list_del(&list_entry->list_node);
21566 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);