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 | LPFC_IO_CMF |
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_cmf_sync_cmpl - Process a CMF_SYNC_WQE cmpl
1773 * @phba: Pointer to HBA context object.
1774 * @cmdiocb: Pointer to driver command iocb object.
1775 * @cmf_cmpl: Pointer to completed WCQE.
1777 * This routine will inform the driver of any BW adjustments we need
1778 * to make. These changes will be picked up during the next CMF
1779 * timer interrupt. In addition, any BW changes will be logged
1780 * with LOG_CGN_MGMT.
1783 lpfc_cmf_sync_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1784 struct lpfc_wcqe_complete *cmf_cmpl)
1786 union lpfc_wqe128 *wqe;
1787 uint32_t status, info;
1788 uint64_t bw, bwdif, slop;
1789 uint64_t pcent, bwpcent;
1790 int asig, afpin, sigcnt, fpincnt;
1791 int wsigmax, wfpinmax, cg, tdp;
1794 /* First check for error */
1795 status = bf_get(lpfc_wcqe_c_status, cmf_cmpl);
1797 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1798 "6211 CMF_SYNC_WQE Error "
1799 "req_tag x%x status x%x hwstatus x%x "
1800 "tdatap x%x parm x%x\n",
1801 bf_get(lpfc_wcqe_c_request_tag, cmf_cmpl),
1802 bf_get(lpfc_wcqe_c_status, cmf_cmpl),
1803 bf_get(lpfc_wcqe_c_hw_status, cmf_cmpl),
1804 cmf_cmpl->total_data_placed,
1805 cmf_cmpl->parameter);
1809 /* Gather congestion information on a successful cmpl */
1810 info = cmf_cmpl->parameter;
1811 phba->cmf_active_info = info;
1813 /* See if firmware info count is valid or has changed */
1814 if (info > LPFC_MAX_CMF_INFO || phba->cmf_info_per_interval == info)
1817 phba->cmf_info_per_interval = info;
1819 tdp = bf_get(lpfc_wcqe_c_cmf_bw, cmf_cmpl);
1820 cg = bf_get(lpfc_wcqe_c_cmf_cg, cmf_cmpl);
1822 /* Get BW requirement from firmware */
1823 bw = (uint64_t)tdp * LPFC_CMF_BLK_SIZE;
1825 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1826 "6212 CMF_SYNC_WQE x%x: NULL bw\n",
1827 bf_get(lpfc_wcqe_c_request_tag, cmf_cmpl));
1831 /* Gather information needed for logging if a BW change is required */
1832 wqe = &cmdiocb->wqe;
1833 asig = bf_get(cmf_sync_asig, &wqe->cmf_sync);
1834 afpin = bf_get(cmf_sync_afpin, &wqe->cmf_sync);
1835 fpincnt = bf_get(cmf_sync_wfpincnt, &wqe->cmf_sync);
1836 sigcnt = bf_get(cmf_sync_wsigcnt, &wqe->cmf_sync);
1837 if (phba->cmf_max_bytes_per_interval != bw ||
1838 (asig || afpin || sigcnt || fpincnt)) {
1839 /* Are we increasing or decreasing BW */
1840 if (phba->cmf_max_bytes_per_interval < bw) {
1841 bwdif = bw - phba->cmf_max_bytes_per_interval;
1844 bwdif = phba->cmf_max_bytes_per_interval - bw;
1848 /* What is the change percentage */
1849 slop = div_u64(phba->cmf_link_byte_count, 200); /*For rounding*/
1850 pcent = div64_u64(bwdif * 100 + slop,
1851 phba->cmf_link_byte_count);
1852 bwpcent = div64_u64(bw * 100 + slop,
1853 phba->cmf_link_byte_count);
1855 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1856 "6237 BW Threshold %lld%% (%lld): "
1857 "%lld%% %s: Signal Alarm: cg:%d "
1859 bwpcent, bw, pcent, s, cg,
1860 phba->cmf_active_info);
1862 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1863 "6238 BW Threshold %lld%% (%lld): "
1864 "%lld%% %s: FPIN Alarm: cg:%d "
1866 bwpcent, bw, pcent, s, cg,
1867 phba->cmf_active_info);
1868 } else if (sigcnt) {
1869 wsigmax = bf_get(cmf_sync_wsigmax, &wqe->cmf_sync);
1870 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1871 "6239 BW Threshold %lld%% (%lld): "
1872 "%lld%% %s: Signal Warning: "
1873 "Cnt %d Max %d: cg:%d Info:%u\n",
1874 bwpcent, bw, pcent, s, sigcnt,
1875 wsigmax, cg, phba->cmf_active_info);
1876 } else if (fpincnt) {
1877 wfpinmax = bf_get(cmf_sync_wfpinmax, &wqe->cmf_sync);
1878 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1879 "6240 BW Threshold %lld%% (%lld): "
1880 "%lld%% %s: FPIN Warning: "
1881 "Cnt %d Max %d: cg:%d Info:%u\n",
1882 bwpcent, bw, pcent, s, fpincnt,
1883 wfpinmax, cg, phba->cmf_active_info);
1885 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1886 "6241 BW Threshold %lld%% (%lld): "
1887 "CMF %lld%% %s: cg:%d Info:%u\n",
1888 bwpcent, bw, pcent, s, cg,
1889 phba->cmf_active_info);
1892 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1893 "6246 Info Threshold %u\n", info);
1896 /* Save BW change to be picked up during next timer interrupt */
1897 phba->cmf_last_sync_bw = bw;
1899 lpfc_sli_release_iocbq(phba, cmdiocb);
1903 * lpfc_issue_cmf_sync_wqe - Issue a CMF_SYNC_WQE
1904 * @phba: Pointer to HBA context object.
1905 * @ms: ms to set in WQE interval, 0 means use init op
1906 * @total: Total rcv bytes for this interval
1908 * This routine is called every CMF timer interrupt. Its purpose is
1909 * to issue a CMF_SYNC_WQE to the firmware to inform it of any events
1910 * that may indicate we have congestion (FPINs or Signals). Upon
1911 * completion, the firmware will indicate any BW restrictions the
1912 * driver may need to take.
1915 lpfc_issue_cmf_sync_wqe(struct lpfc_hba *phba, u32 ms, u64 total)
1917 union lpfc_wqe128 *wqe;
1918 struct lpfc_iocbq *sync_buf;
1919 unsigned long iflags;
1921 u32 atot, wtot, max;
1923 /* First address any alarm / warning activity */
1924 atot = atomic_xchg(&phba->cgn_sync_alarm_cnt, 0);
1925 wtot = atomic_xchg(&phba->cgn_sync_warn_cnt, 0);
1927 /* ONLY Managed mode will send the CMF_SYNC_WQE to the HBA */
1928 if (phba->cmf_active_mode != LPFC_CFG_MANAGED ||
1929 phba->link_state == LPFC_LINK_DOWN)
1932 spin_lock_irqsave(&phba->hbalock, iflags);
1933 sync_buf = __lpfc_sli_get_iocbq(phba);
1935 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
1936 "6213 No available WQEs for CMF_SYNC_WQE\n");
1941 wqe = &sync_buf->wqe;
1943 /* WQEs are reused. Clear stale data and set key fields to zero */
1944 memset(wqe, 0, sizeof(*wqe));
1946 /* If this is the very first CMF_SYNC_WQE, issue an init operation */
1948 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1949 "6441 CMF Init %d - CMF_SYNC_WQE\n",
1951 bf_set(cmf_sync_op, &wqe->cmf_sync, 1); /* 1=init */
1952 bf_set(cmf_sync_interval, &wqe->cmf_sync, LPFC_CMF_INTERVAL);
1956 bf_set(cmf_sync_op, &wqe->cmf_sync, 0); /* 0=recalc */
1957 bf_set(cmf_sync_interval, &wqe->cmf_sync, ms);
1959 /* Check for alarms / warnings */
1961 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
1962 /* We hit an Signal alarm condition */
1963 bf_set(cmf_sync_asig, &wqe->cmf_sync, 1);
1965 /* We hit a FPIN alarm condition */
1966 bf_set(cmf_sync_afpin, &wqe->cmf_sync, 1);
1969 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
1970 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
1971 /* We hit an Signal warning condition */
1972 max = LPFC_SEC_TO_MSEC / lpfc_fabric_cgn_frequency *
1973 lpfc_acqe_cgn_frequency;
1974 bf_set(cmf_sync_wsigmax, &wqe->cmf_sync, max);
1975 bf_set(cmf_sync_wsigcnt, &wqe->cmf_sync, wtot);
1977 /* We hit a FPIN warning condition */
1978 bf_set(cmf_sync_wfpinmax, &wqe->cmf_sync, 1);
1979 bf_set(cmf_sync_wfpincnt, &wqe->cmf_sync, 1);
1983 /* Update total read blocks during previous timer interval */
1984 wqe->cmf_sync.read_bytes = (u32)(total / LPFC_CMF_BLK_SIZE);
1987 bf_set(cmf_sync_ver, &wqe->cmf_sync, LPFC_CMF_SYNC_VER);
1988 wqe->cmf_sync.event_tag = phba->fc_eventTag;
1989 bf_set(cmf_sync_cmnd, &wqe->cmf_sync, CMD_CMF_SYNC_WQE);
1991 /* Setup reqtag to match the wqe completion. */
1992 bf_set(cmf_sync_reqtag, &wqe->cmf_sync, sync_buf->iotag);
1994 bf_set(cmf_sync_qosd, &wqe->cmf_sync, 1);
1996 bf_set(cmf_sync_cmd_type, &wqe->cmf_sync, CMF_SYNC_COMMAND);
1997 bf_set(cmf_sync_wqec, &wqe->cmf_sync, 1);
1998 bf_set(cmf_sync_cqid, &wqe->cmf_sync, LPFC_WQE_CQ_ID_DEFAULT);
2000 sync_buf->vport = phba->pport;
2001 sync_buf->wqe_cmpl = lpfc_cmf_sync_cmpl;
2002 sync_buf->iocb_cmpl = NULL;
2003 sync_buf->context1 = NULL;
2004 sync_buf->context2 = NULL;
2005 sync_buf->context3 = NULL;
2006 sync_buf->sli4_xritag = NO_XRI;
2008 sync_buf->iocb_flag |= LPFC_IO_CMF;
2009 ret_val = lpfc_sli4_issue_wqe(phba, &phba->sli4_hba.hdwq[0], sync_buf);
2011 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
2012 "6214 Cannot issue CMF_SYNC_WQE: x%x\n",
2015 spin_unlock_irqrestore(&phba->hbalock, iflags);
2020 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
2021 * @phba: Pointer to HBA context object.
2022 * @pring: Pointer to driver SLI ring object.
2024 * This function is called with hbalock held and the caller must post the
2025 * iocb without releasing the lock. If the caller releases the lock,
2026 * iocb slot returned by the function is not guaranteed to be available.
2027 * The function returns pointer to the next available iocb slot if there
2028 * is available slot in the ring, else it returns NULL.
2029 * If the get index of the ring is ahead of the put index, the function
2030 * will post an error attention event to the worker thread to take the
2031 * HBA to offline state.
2034 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2036 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2037 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
2039 lockdep_assert_held(&phba->hbalock);
2041 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
2042 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
2043 pring->sli.sli3.next_cmdidx = 0;
2045 if (unlikely(pring->sli.sli3.local_getidx ==
2046 pring->sli.sli3.next_cmdidx)) {
2048 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
2050 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
2051 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2052 "0315 Ring %d issue: portCmdGet %d "
2053 "is bigger than cmd ring %d\n",
2055 pring->sli.sli3.local_getidx,
2058 phba->link_state = LPFC_HBA_ERROR;
2060 * All error attention handlers are posted to
2063 phba->work_ha |= HA_ERATT;
2064 phba->work_hs = HS_FFER3;
2066 lpfc_worker_wake_up(phba);
2071 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
2075 return lpfc_cmd_iocb(phba, pring);
2079 * lpfc_sli_next_iotag - Get an iotag for the iocb
2080 * @phba: Pointer to HBA context object.
2081 * @iocbq: Pointer to driver iocb object.
2083 * This function gets an iotag for the iocb. If there is no unused iotag and
2084 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
2085 * array and assigns a new iotag.
2086 * The function returns the allocated iotag if successful, else returns zero.
2087 * Zero is not a valid iotag.
2088 * The caller is not required to hold any lock.
2091 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
2093 struct lpfc_iocbq **new_arr;
2094 struct lpfc_iocbq **old_arr;
2096 struct lpfc_sli *psli = &phba->sli;
2099 spin_lock_irq(&phba->hbalock);
2100 iotag = psli->last_iotag;
2101 if(++iotag < psli->iocbq_lookup_len) {
2102 psli->last_iotag = iotag;
2103 psli->iocbq_lookup[iotag] = iocbq;
2104 spin_unlock_irq(&phba->hbalock);
2105 iocbq->iotag = iotag;
2107 } else if (psli->iocbq_lookup_len < (0xffff
2108 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
2109 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
2110 spin_unlock_irq(&phba->hbalock);
2111 new_arr = kcalloc(new_len, sizeof(struct lpfc_iocbq *),
2114 spin_lock_irq(&phba->hbalock);
2115 old_arr = psli->iocbq_lookup;
2116 if (new_len <= psli->iocbq_lookup_len) {
2117 /* highly unprobable case */
2119 iotag = psli->last_iotag;
2120 if(++iotag < psli->iocbq_lookup_len) {
2121 psli->last_iotag = iotag;
2122 psli->iocbq_lookup[iotag] = iocbq;
2123 spin_unlock_irq(&phba->hbalock);
2124 iocbq->iotag = iotag;
2127 spin_unlock_irq(&phba->hbalock);
2130 if (psli->iocbq_lookup)
2131 memcpy(new_arr, old_arr,
2132 ((psli->last_iotag + 1) *
2133 sizeof (struct lpfc_iocbq *)));
2134 psli->iocbq_lookup = new_arr;
2135 psli->iocbq_lookup_len = new_len;
2136 psli->last_iotag = iotag;
2137 psli->iocbq_lookup[iotag] = iocbq;
2138 spin_unlock_irq(&phba->hbalock);
2139 iocbq->iotag = iotag;
2144 spin_unlock_irq(&phba->hbalock);
2146 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2147 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
2154 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
2155 * @phba: Pointer to HBA context object.
2156 * @pring: Pointer to driver SLI ring object.
2157 * @iocb: Pointer to iocb slot in the ring.
2158 * @nextiocb: Pointer to driver iocb object which need to be
2159 * posted to firmware.
2161 * This function is called to post a new iocb to the firmware. This
2162 * function copies the new iocb to ring iocb slot and updates the
2163 * ring pointers. It adds the new iocb to txcmplq if there is
2164 * a completion call back for this iocb else the function will free the
2165 * iocb object. The hbalock is asserted held in the code path calling
2169 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2170 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
2175 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
2178 if (pring->ringno == LPFC_ELS_RING) {
2179 lpfc_debugfs_slow_ring_trc(phba,
2180 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2181 *(((uint32_t *) &nextiocb->iocb) + 4),
2182 *(((uint32_t *) &nextiocb->iocb) + 6),
2183 *(((uint32_t *) &nextiocb->iocb) + 7));
2187 * Issue iocb command to adapter
2189 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
2191 pring->stats.iocb_cmd++;
2194 * If there is no completion routine to call, we can release the
2195 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
2196 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
2198 if (nextiocb->iocb_cmpl)
2199 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
2201 __lpfc_sli_release_iocbq(phba, nextiocb);
2204 * Let the HBA know what IOCB slot will be the next one the
2205 * driver will put a command into.
2207 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
2208 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
2212 * lpfc_sli_update_full_ring - Update the chip attention register
2213 * @phba: Pointer to HBA context object.
2214 * @pring: Pointer to driver SLI ring object.
2216 * The caller is not required to hold any lock for calling this function.
2217 * This function updates the chip attention bits for the ring to inform firmware
2218 * that there are pending work to be done for this ring and requests an
2219 * interrupt when there is space available in the ring. This function is
2220 * called when the driver is unable to post more iocbs to the ring due
2221 * to unavailability of space in the ring.
2224 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2226 int ringno = pring->ringno;
2228 pring->flag |= LPFC_CALL_RING_AVAILABLE;
2233 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
2234 * The HBA will tell us when an IOCB entry is available.
2236 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
2237 readl(phba->CAregaddr); /* flush */
2239 pring->stats.iocb_cmd_full++;
2243 * lpfc_sli_update_ring - Update chip attention register
2244 * @phba: Pointer to HBA context object.
2245 * @pring: Pointer to driver SLI ring object.
2247 * This function updates the chip attention register bit for the
2248 * given ring to inform HBA that there is more work to be done
2249 * in this ring. The caller is not required to hold any lock.
2252 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2254 int ringno = pring->ringno;
2257 * Tell the HBA that there is work to do in this ring.
2259 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
2261 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
2262 readl(phba->CAregaddr); /* flush */
2267 * lpfc_sli_resume_iocb - Process iocbs in the txq
2268 * @phba: Pointer to HBA context object.
2269 * @pring: Pointer to driver SLI ring object.
2271 * This function is called with hbalock held to post pending iocbs
2272 * in the txq to the firmware. This function is called when driver
2273 * detects space available in the ring.
2276 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2279 struct lpfc_iocbq *nextiocb;
2281 lockdep_assert_held(&phba->hbalock);
2285 * (a) there is anything on the txq to send
2287 * (c) link attention events can be processed (fcp ring only)
2288 * (d) IOCB processing is not blocked by the outstanding mbox command.
2291 if (lpfc_is_link_up(phba) &&
2292 (!list_empty(&pring->txq)) &&
2293 (pring->ringno != LPFC_FCP_RING ||
2294 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
2296 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
2297 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
2298 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
2301 lpfc_sli_update_ring(phba, pring);
2303 lpfc_sli_update_full_ring(phba, pring);
2310 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
2311 * @phba: Pointer to HBA context object.
2312 * @hbqno: HBQ number.
2314 * This function is called with hbalock held to get the next
2315 * available slot for the given HBQ. If there is free slot
2316 * available for the HBQ it will return pointer to the next available
2317 * HBQ entry else it will return NULL.
2319 static struct lpfc_hbq_entry *
2320 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
2322 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2324 lockdep_assert_held(&phba->hbalock);
2326 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
2327 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
2328 hbqp->next_hbqPutIdx = 0;
2330 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
2331 uint32_t raw_index = phba->hbq_get[hbqno];
2332 uint32_t getidx = le32_to_cpu(raw_index);
2334 hbqp->local_hbqGetIdx = getidx;
2336 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
2337 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2338 "1802 HBQ %d: local_hbqGetIdx "
2339 "%u is > than hbqp->entry_count %u\n",
2340 hbqno, hbqp->local_hbqGetIdx,
2343 phba->link_state = LPFC_HBA_ERROR;
2347 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
2351 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
2356 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
2357 * @phba: Pointer to HBA context object.
2359 * This function is called with no lock held to free all the
2360 * hbq buffers while uninitializing the SLI interface. It also
2361 * frees the HBQ buffers returned by the firmware but not yet
2362 * processed by the upper layers.
2365 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
2367 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
2368 struct hbq_dmabuf *hbq_buf;
2369 unsigned long flags;
2372 hbq_count = lpfc_sli_hbq_count();
2373 /* Return all memory used by all HBQs */
2374 spin_lock_irqsave(&phba->hbalock, flags);
2375 for (i = 0; i < hbq_count; ++i) {
2376 list_for_each_entry_safe(dmabuf, next_dmabuf,
2377 &phba->hbqs[i].hbq_buffer_list, list) {
2378 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
2379 list_del(&hbq_buf->dbuf.list);
2380 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
2382 phba->hbqs[i].buffer_count = 0;
2385 /* Mark the HBQs not in use */
2386 phba->hbq_in_use = 0;
2387 spin_unlock_irqrestore(&phba->hbalock, flags);
2391 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
2392 * @phba: Pointer to HBA context object.
2393 * @hbqno: HBQ number.
2394 * @hbq_buf: Pointer to HBQ buffer.
2396 * This function is called with the hbalock held to post a
2397 * hbq buffer to the firmware. If the function finds an empty
2398 * slot in the HBQ, it will post the buffer. The function will return
2399 * pointer to the hbq entry if it successfully post the buffer
2400 * else it will return NULL.
2403 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
2404 struct hbq_dmabuf *hbq_buf)
2406 lockdep_assert_held(&phba->hbalock);
2407 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
2411 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
2412 * @phba: Pointer to HBA context object.
2413 * @hbqno: HBQ number.
2414 * @hbq_buf: Pointer to HBQ buffer.
2416 * This function is called with the hbalock held to post a hbq buffer to the
2417 * firmware. If the function finds an empty slot in the HBQ, it will post the
2418 * buffer and place it on the hbq_buffer_list. The function will return zero if
2419 * it successfully post the buffer else it will return an error.
2422 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
2423 struct hbq_dmabuf *hbq_buf)
2425 struct lpfc_hbq_entry *hbqe;
2426 dma_addr_t physaddr = hbq_buf->dbuf.phys;
2428 lockdep_assert_held(&phba->hbalock);
2429 /* Get next HBQ entry slot to use */
2430 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
2432 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2434 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
2435 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
2436 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
2437 hbqe->bde.tus.f.bdeFlags = 0;
2438 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
2439 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
2441 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
2442 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
2444 readl(phba->hbq_put + hbqno);
2445 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
2452 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
2453 * @phba: Pointer to HBA context object.
2454 * @hbqno: HBQ number.
2455 * @hbq_buf: Pointer to HBQ buffer.
2457 * This function is called with the hbalock held to post an RQE to the SLI4
2458 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
2459 * the hbq_buffer_list and return zero, otherwise it will return an error.
2462 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
2463 struct hbq_dmabuf *hbq_buf)
2466 struct lpfc_rqe hrqe;
2467 struct lpfc_rqe drqe;
2468 struct lpfc_queue *hrq;
2469 struct lpfc_queue *drq;
2471 if (hbqno != LPFC_ELS_HBQ)
2473 hrq = phba->sli4_hba.hdr_rq;
2474 drq = phba->sli4_hba.dat_rq;
2476 lockdep_assert_held(&phba->hbalock);
2477 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
2478 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
2479 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
2480 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
2481 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
2484 hbq_buf->tag = (rc | (hbqno << 16));
2485 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
2489 /* HBQ for ELS and CT traffic. */
2490 static struct lpfc_hbq_init lpfc_els_hbq = {
2495 .ring_mask = (1 << LPFC_ELS_RING),
2502 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
2507 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
2508 * @phba: Pointer to HBA context object.
2509 * @hbqno: HBQ number.
2510 * @count: Number of HBQ buffers to be posted.
2512 * This function is called with no lock held to post more hbq buffers to the
2513 * given HBQ. The function returns the number of HBQ buffers successfully
2517 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
2519 uint32_t i, posted = 0;
2520 unsigned long flags;
2521 struct hbq_dmabuf *hbq_buffer;
2522 LIST_HEAD(hbq_buf_list);
2523 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
2526 if ((phba->hbqs[hbqno].buffer_count + count) >
2527 lpfc_hbq_defs[hbqno]->entry_count)
2528 count = lpfc_hbq_defs[hbqno]->entry_count -
2529 phba->hbqs[hbqno].buffer_count;
2532 /* Allocate HBQ entries */
2533 for (i = 0; i < count; i++) {
2534 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
2537 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
2539 /* Check whether HBQ is still in use */
2540 spin_lock_irqsave(&phba->hbalock, flags);
2541 if (!phba->hbq_in_use)
2543 while (!list_empty(&hbq_buf_list)) {
2544 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2546 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
2548 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
2549 phba->hbqs[hbqno].buffer_count++;
2552 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2554 spin_unlock_irqrestore(&phba->hbalock, flags);
2557 spin_unlock_irqrestore(&phba->hbalock, flags);
2558 while (!list_empty(&hbq_buf_list)) {
2559 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2561 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2567 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
2568 * @phba: Pointer to HBA context object.
2571 * This function posts more buffers to the HBQ. This function
2572 * is called with no lock held. The function returns the number of HBQ entries
2573 * successfully allocated.
2576 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
2578 if (phba->sli_rev == LPFC_SLI_REV4)
2581 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2582 lpfc_hbq_defs[qno]->add_count);
2586 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
2587 * @phba: Pointer to HBA context object.
2588 * @qno: HBQ queue number.
2590 * This function is called from SLI initialization code path with
2591 * no lock held to post initial HBQ buffers to firmware. The
2592 * function returns the number of HBQ entries successfully allocated.
2595 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2597 if (phba->sli_rev == LPFC_SLI_REV4)
2598 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2599 lpfc_hbq_defs[qno]->entry_count);
2601 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2602 lpfc_hbq_defs[qno]->init_count);
2606 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2608 * This function removes the first hbq buffer on an hbq list and returns a
2609 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2611 static struct hbq_dmabuf *
2612 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2614 struct lpfc_dmabuf *d_buf;
2616 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2619 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2623 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2624 * @phba: Pointer to HBA context object.
2627 * This function removes the first RQ buffer on an RQ buffer list and returns a
2628 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2630 static struct rqb_dmabuf *
2631 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2633 struct lpfc_dmabuf *h_buf;
2634 struct lpfc_rqb *rqbp;
2637 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2638 struct lpfc_dmabuf, list);
2641 rqbp->buffer_count--;
2642 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2646 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2647 * @phba: Pointer to HBA context object.
2648 * @tag: Tag of the hbq buffer.
2650 * This function searches for the hbq buffer associated with the given tag in
2651 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2652 * otherwise it returns NULL.
2654 static struct hbq_dmabuf *
2655 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2657 struct lpfc_dmabuf *d_buf;
2658 struct hbq_dmabuf *hbq_buf;
2662 if (hbqno >= LPFC_MAX_HBQS)
2665 spin_lock_irq(&phba->hbalock);
2666 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2667 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2668 if (hbq_buf->tag == tag) {
2669 spin_unlock_irq(&phba->hbalock);
2673 spin_unlock_irq(&phba->hbalock);
2674 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2675 "1803 Bad hbq tag. Data: x%x x%x\n",
2676 tag, phba->hbqs[tag >> 16].buffer_count);
2681 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2682 * @phba: Pointer to HBA context object.
2683 * @hbq_buffer: Pointer to HBQ buffer.
2685 * This function is called with hbalock. This function gives back
2686 * the hbq buffer to firmware. If the HBQ does not have space to
2687 * post the buffer, it will free the buffer.
2690 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2695 hbqno = hbq_buffer->tag >> 16;
2696 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2697 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2702 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2703 * @mbxCommand: mailbox command code.
2705 * This function is called by the mailbox event handler function to verify
2706 * that the completed mailbox command is a legitimate mailbox command. If the
2707 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2708 * and the mailbox event handler will take the HBA offline.
2711 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2715 switch (mbxCommand) {
2719 case MBX_WRITE_VPARMS:
2720 case MBX_RUN_BIU_DIAG:
2723 case MBX_CONFIG_LINK:
2724 case MBX_CONFIG_RING:
2725 case MBX_RESET_RING:
2726 case MBX_READ_CONFIG:
2727 case MBX_READ_RCONFIG:
2728 case MBX_READ_SPARM:
2729 case MBX_READ_STATUS:
2733 case MBX_READ_LNK_STAT:
2735 case MBX_UNREG_LOGIN:
2737 case MBX_DUMP_MEMORY:
2738 case MBX_DUMP_CONTEXT:
2741 case MBX_UPDATE_CFG:
2743 case MBX_DEL_LD_ENTRY:
2744 case MBX_RUN_PROGRAM:
2746 case MBX_SET_VARIABLE:
2747 case MBX_UNREG_D_ID:
2748 case MBX_KILL_BOARD:
2749 case MBX_CONFIG_FARP:
2752 case MBX_RUN_BIU_DIAG64:
2753 case MBX_CONFIG_PORT:
2754 case MBX_READ_SPARM64:
2755 case MBX_READ_RPI64:
2756 case MBX_REG_LOGIN64:
2757 case MBX_READ_TOPOLOGY:
2760 case MBX_LOAD_EXP_ROM:
2761 case MBX_ASYNCEVT_ENABLE:
2765 case MBX_PORT_CAPABILITIES:
2766 case MBX_PORT_IOV_CONTROL:
2767 case MBX_SLI4_CONFIG:
2768 case MBX_SLI4_REQ_FTRS:
2770 case MBX_UNREG_FCFI:
2775 case MBX_RESUME_RPI:
2776 case MBX_READ_EVENT_LOG_STATUS:
2777 case MBX_READ_EVENT_LOG:
2778 case MBX_SECURITY_MGMT:
2780 case MBX_ACCESS_VDATA:
2791 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2792 * @phba: Pointer to HBA context object.
2793 * @pmboxq: Pointer to mailbox command.
2795 * This is completion handler function for mailbox commands issued from
2796 * lpfc_sli_issue_mbox_wait function. This function is called by the
2797 * mailbox event handler function with no lock held. This function
2798 * will wake up thread waiting on the wait queue pointed by context1
2802 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2804 unsigned long drvr_flag;
2805 struct completion *pmbox_done;
2808 * If pmbox_done is empty, the driver thread gave up waiting and
2809 * continued running.
2811 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2812 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2813 pmbox_done = (struct completion *)pmboxq->context3;
2815 complete(pmbox_done);
2816 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2821 __lpfc_sli_rpi_release(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2823 unsigned long iflags;
2825 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
2826 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
2827 spin_lock_irqsave(&ndlp->lock, iflags);
2828 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
2829 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
2830 spin_unlock_irqrestore(&ndlp->lock, iflags);
2832 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2836 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2837 * @phba: Pointer to HBA context object.
2838 * @pmb: Pointer to mailbox object.
2840 * This function is the default mailbox completion handler. It
2841 * frees the memory resources associated with the completed mailbox
2842 * command. If the completed command is a REG_LOGIN mailbox command,
2843 * this function will issue a UREG_LOGIN to re-claim the RPI.
2846 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2848 struct lpfc_vport *vport = pmb->vport;
2849 struct lpfc_dmabuf *mp;
2850 struct lpfc_nodelist *ndlp;
2851 struct Scsi_Host *shost;
2855 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
2858 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2863 * If a REG_LOGIN succeeded after node is destroyed or node
2864 * is in re-discovery driver need to cleanup the RPI.
2866 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2867 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2868 !pmb->u.mb.mbxStatus) {
2869 rpi = pmb->u.mb.un.varWords[0];
2870 vpi = pmb->u.mb.un.varRegLogin.vpi;
2871 if (phba->sli_rev == LPFC_SLI_REV4)
2872 vpi -= phba->sli4_hba.max_cfg_param.vpi_base;
2873 lpfc_unreg_login(phba, vpi, rpi, pmb);
2875 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2876 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2877 if (rc != MBX_NOT_FINISHED)
2881 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2882 !(phba->pport->load_flag & FC_UNLOADING) &&
2883 !pmb->u.mb.mbxStatus) {
2884 shost = lpfc_shost_from_vport(vport);
2885 spin_lock_irq(shost->host_lock);
2886 vport->vpi_state |= LPFC_VPI_REGISTERED;
2887 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2888 spin_unlock_irq(shost->host_lock);
2891 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2892 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2894 pmb->ctx_buf = NULL;
2895 pmb->ctx_ndlp = NULL;
2898 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2899 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2901 /* Check to see if there are any deferred events to process */
2905 KERN_INFO, LOG_MBOX | LOG_DISCOVERY,
2906 "1438 UNREG cmpl deferred mbox x%x "
2907 "on NPort x%x Data: x%x x%x x%px x%x x%x\n",
2908 ndlp->nlp_rpi, ndlp->nlp_DID,
2909 ndlp->nlp_flag, ndlp->nlp_defer_did,
2910 ndlp, vport->load_flag, kref_read(&ndlp->kref));
2912 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2913 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
2914 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2915 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
2916 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2918 __lpfc_sli_rpi_release(vport, ndlp);
2921 /* The unreg_login mailbox is complete and had a
2922 * reference that has to be released. The PLOGI
2926 pmb->ctx_ndlp = NULL;
2930 /* This nlp_put pairs with lpfc_sli4_resume_rpi */
2931 if (pmb->u.mb.mbxCommand == MBX_RESUME_RPI) {
2932 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2936 /* Check security permission status on INIT_LINK mailbox command */
2937 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2938 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2939 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2940 "2860 SLI authentication is required "
2941 "for INIT_LINK but has not done yet\n");
2943 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2944 lpfc_sli4_mbox_cmd_free(phba, pmb);
2946 mempool_free(pmb, phba->mbox_mem_pool);
2949 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2950 * @phba: Pointer to HBA context object.
2951 * @pmb: Pointer to mailbox object.
2953 * This function is the unreg rpi mailbox completion handler. It
2954 * frees the memory resources associated with the completed mailbox
2955 * command. An additional reference is put on the ndlp to prevent
2956 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2957 * the unreg mailbox command completes, this routine puts the
2962 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2964 struct lpfc_vport *vport = pmb->vport;
2965 struct lpfc_nodelist *ndlp;
2967 ndlp = pmb->ctx_ndlp;
2968 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2969 if (phba->sli_rev == LPFC_SLI_REV4 &&
2970 (bf_get(lpfc_sli_intf_if_type,
2971 &phba->sli4_hba.sli_intf) >=
2972 LPFC_SLI_INTF_IF_TYPE_2)) {
2975 vport, KERN_INFO, LOG_MBOX | LOG_SLI,
2976 "0010 UNREG_LOGIN vpi:%x "
2977 "rpi:%x DID:%x defer x%x flg x%x "
2979 vport->vpi, ndlp->nlp_rpi,
2980 ndlp->nlp_DID, ndlp->nlp_defer_did,
2983 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2985 /* Check to see if there are any deferred
2988 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2989 (ndlp->nlp_defer_did !=
2990 NLP_EVT_NOTHING_PENDING)) {
2992 vport, KERN_INFO, LOG_DISCOVERY,
2993 "4111 UNREG cmpl deferred "
2995 "NPort x%x Data: x%x x%px\n",
2996 ndlp->nlp_rpi, ndlp->nlp_DID,
2997 ndlp->nlp_defer_did, ndlp);
2998 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2999 ndlp->nlp_defer_did =
3000 NLP_EVT_NOTHING_PENDING;
3001 lpfc_issue_els_plogi(
3002 vport, ndlp->nlp_DID, 0);
3004 __lpfc_sli_rpi_release(vport, ndlp);
3011 mempool_free(pmb, phba->mbox_mem_pool);
3015 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
3016 * @phba: Pointer to HBA context object.
3018 * This function is called with no lock held. This function processes all
3019 * the completed mailbox commands and gives it to upper layers. The interrupt
3020 * service routine processes mailbox completion interrupt and adds completed
3021 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
3022 * Worker thread call lpfc_sli_handle_mb_event, which will return the
3023 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
3024 * function returns the mailbox commands to the upper layer by calling the
3025 * completion handler function of each mailbox.
3028 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
3035 phba->sli.slistat.mbox_event++;
3037 /* Get all completed mailboxe buffers into the cmplq */
3038 spin_lock_irq(&phba->hbalock);
3039 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
3040 spin_unlock_irq(&phba->hbalock);
3042 /* Get a Mailbox buffer to setup mailbox commands for callback */
3044 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
3050 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
3052 lpfc_debugfs_disc_trc(pmb->vport,
3053 LPFC_DISC_TRC_MBOX_VPORT,
3054 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
3055 (uint32_t)pmbox->mbxCommand,
3056 pmbox->un.varWords[0],
3057 pmbox->un.varWords[1]);
3060 lpfc_debugfs_disc_trc(phba->pport,
3062 "MBOX cmpl: cmd:x%x mb:x%x x%x",
3063 (uint32_t)pmbox->mbxCommand,
3064 pmbox->un.varWords[0],
3065 pmbox->un.varWords[1]);
3070 * It is a fatal error if unknown mbox command completion.
3072 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
3074 /* Unknown mailbox command compl */
3075 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3076 "(%d):0323 Unknown Mailbox command "
3077 "x%x (x%x/x%x) Cmpl\n",
3078 pmb->vport ? pmb->vport->vpi :
3081 lpfc_sli_config_mbox_subsys_get(phba,
3083 lpfc_sli_config_mbox_opcode_get(phba,
3085 phba->link_state = LPFC_HBA_ERROR;
3086 phba->work_hs = HS_FFER3;
3087 lpfc_handle_eratt(phba);
3091 if (pmbox->mbxStatus) {
3092 phba->sli.slistat.mbox_stat_err++;
3093 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
3094 /* Mbox cmd cmpl error - RETRYing */
3095 lpfc_printf_log(phba, KERN_INFO,
3097 "(%d):0305 Mbox cmd cmpl "
3098 "error - RETRYing Data: x%x "
3099 "(x%x/x%x) x%x x%x x%x\n",
3100 pmb->vport ? pmb->vport->vpi :
3103 lpfc_sli_config_mbox_subsys_get(phba,
3105 lpfc_sli_config_mbox_opcode_get(phba,
3108 pmbox->un.varWords[0],
3109 pmb->vport ? pmb->vport->port_state :
3110 LPFC_VPORT_UNKNOWN);
3111 pmbox->mbxStatus = 0;
3112 pmbox->mbxOwner = OWN_HOST;
3113 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3114 if (rc != MBX_NOT_FINISHED)
3119 /* Mailbox cmd <cmd> Cmpl <cmpl> */
3120 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
3121 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl %ps "
3122 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
3124 pmb->vport ? pmb->vport->vpi : 0,
3126 lpfc_sli_config_mbox_subsys_get(phba, pmb),
3127 lpfc_sli_config_mbox_opcode_get(phba, pmb),
3129 *((uint32_t *) pmbox),
3130 pmbox->un.varWords[0],
3131 pmbox->un.varWords[1],
3132 pmbox->un.varWords[2],
3133 pmbox->un.varWords[3],
3134 pmbox->un.varWords[4],
3135 pmbox->un.varWords[5],
3136 pmbox->un.varWords[6],
3137 pmbox->un.varWords[7],
3138 pmbox->un.varWords[8],
3139 pmbox->un.varWords[9],
3140 pmbox->un.varWords[10]);
3143 pmb->mbox_cmpl(phba,pmb);
3149 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
3150 * @phba: Pointer to HBA context object.
3151 * @pring: Pointer to driver SLI ring object.
3154 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
3155 * is set in the tag the buffer is posted for a particular exchange,
3156 * the function will return the buffer without replacing the buffer.
3157 * If the buffer is for unsolicited ELS or CT traffic, this function
3158 * returns the buffer and also posts another buffer to the firmware.
3160 static struct lpfc_dmabuf *
3161 lpfc_sli_get_buff(struct lpfc_hba *phba,
3162 struct lpfc_sli_ring *pring,
3165 struct hbq_dmabuf *hbq_entry;
3167 if (tag & QUE_BUFTAG_BIT)
3168 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
3169 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
3172 return &hbq_entry->dbuf;
3176 * lpfc_nvme_unsol_ls_handler - Process an unsolicited event data buffer
3177 * containing a NVME LS request.
3178 * @phba: pointer to lpfc hba data structure.
3179 * @piocb: pointer to the iocbq struct representing the sequence starting
3182 * This routine initially validates the NVME LS, validates there is a login
3183 * with the port that sent the LS, and then calls the appropriate nvme host
3184 * or target LS request handler.
3187 lpfc_nvme_unsol_ls_handler(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
3189 struct lpfc_nodelist *ndlp;
3190 struct lpfc_dmabuf *d_buf;
3191 struct hbq_dmabuf *nvmebuf;
3192 struct fc_frame_header *fc_hdr;
3193 struct lpfc_async_xchg_ctx *axchg = NULL;
3194 char *failwhy = NULL;
3195 uint32_t oxid, sid, did, fctl, size;
3198 d_buf = piocb->context2;
3200 nvmebuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
3201 fc_hdr = nvmebuf->hbuf.virt;
3202 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
3203 sid = sli4_sid_from_fc_hdr(fc_hdr);
3204 did = sli4_did_from_fc_hdr(fc_hdr);
3205 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
3206 fc_hdr->fh_f_ctl[1] << 8 |
3207 fc_hdr->fh_f_ctl[2]);
3208 size = bf_get(lpfc_rcqe_length, &nvmebuf->cq_event.cqe.rcqe_cmpl);
3210 lpfc_nvmeio_data(phba, "NVME LS RCV: xri x%x sz %d from %06x\n",
3213 if (phba->pport->load_flag & FC_UNLOADING) {
3214 failwhy = "Driver Unloading";
3215 } else if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
3216 failwhy = "NVME FC4 Disabled";
3217 } else if (!phba->nvmet_support && !phba->pport->localport) {
3218 failwhy = "No Localport";
3219 } else if (phba->nvmet_support && !phba->targetport) {
3220 failwhy = "No Targetport";
3221 } else if (unlikely(fc_hdr->fh_r_ctl != FC_RCTL_ELS4_REQ)) {
3222 failwhy = "Bad NVME LS R_CTL";
3223 } else if (unlikely((fctl & 0x00FF0000) !=
3224 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT))) {
3225 failwhy = "Bad NVME LS F_CTL";
3227 axchg = kzalloc(sizeof(*axchg), GFP_ATOMIC);
3229 failwhy = "No CTX memory";
3232 if (unlikely(failwhy)) {
3233 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3234 "6154 Drop NVME LS: SID %06X OXID x%X: %s\n",
3235 sid, oxid, failwhy);
3239 /* validate the source of the LS is logged in */
3240 ndlp = lpfc_findnode_did(phba->pport, sid);
3242 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3243 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
3244 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
3245 "6216 NVME Unsol rcv: No ndlp: "
3246 "NPort_ID x%x oxid x%x\n",
3257 axchg->state = LPFC_NVME_STE_LS_RCV;
3258 axchg->entry_cnt = 1;
3259 axchg->rqb_buffer = (void *)nvmebuf;
3260 axchg->hdwq = &phba->sli4_hba.hdwq[0];
3261 axchg->payload = nvmebuf->dbuf.virt;
3262 INIT_LIST_HEAD(&axchg->list);
3264 if (phba->nvmet_support) {
3265 ret = lpfc_nvmet_handle_lsreq(phba, axchg);
3266 spin_lock_irq(&ndlp->lock);
3267 if (!ret && !(ndlp->fc4_xpt_flags & NLP_XPT_HAS_HH)) {
3268 ndlp->fc4_xpt_flags |= NLP_XPT_HAS_HH;
3269 spin_unlock_irq(&ndlp->lock);
3271 /* This reference is a single occurrence to hold the
3272 * node valid until the nvmet transport calls
3275 if (!lpfc_nlp_get(ndlp))
3278 lpfc_printf_log(phba, KERN_ERR, LOG_NODE,
3279 "6206 NVMET unsol ls_req ndlp x%px "
3280 "DID x%x xflags x%x refcnt %d\n",
3281 ndlp, ndlp->nlp_DID,
3282 ndlp->fc4_xpt_flags,
3283 kref_read(&ndlp->kref));
3285 spin_unlock_irq(&ndlp->lock);
3288 ret = lpfc_nvme_handle_lsreq(phba, axchg);
3291 /* if zero, LS was successfully handled. If non-zero, LS not handled */
3296 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3297 "6155 Drop NVME LS from DID %06X: SID %06X OXID x%X "
3298 "NVMe%s handler failed %d\n",
3300 (phba->nvmet_support) ? "T" : "I", ret);
3302 /* recycle receive buffer */
3303 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
3305 /* If start of new exchange, abort it */
3306 if (axchg && (fctl & FC_FC_FIRST_SEQ && !(fctl & FC_FC_EX_CTX)))
3307 ret = lpfc_nvme_unsol_ls_issue_abort(phba, axchg, sid, oxid);
3314 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
3315 * @phba: Pointer to HBA context object.
3316 * @pring: Pointer to driver SLI ring object.
3317 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
3318 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
3319 * @fch_type: the type for the first frame of the sequence.
3321 * This function is called with no lock held. This function uses the r_ctl and
3322 * type of the received sequence to find the correct callback function to call
3323 * to process the sequence.
3326 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3327 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
3334 lpfc_nvme_unsol_ls_handler(phba, saveq);
3340 /* unSolicited Responses */
3341 if (pring->prt[0].profile) {
3342 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
3343 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
3347 /* We must search, based on rctl / type
3348 for the right routine */
3349 for (i = 0; i < pring->num_mask; i++) {
3350 if ((pring->prt[i].rctl == fch_r_ctl) &&
3351 (pring->prt[i].type == fch_type)) {
3352 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
3353 (pring->prt[i].lpfc_sli_rcv_unsol_event)
3354 (phba, pring, saveq);
3362 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
3363 * @phba: Pointer to HBA context object.
3364 * @pring: Pointer to driver SLI ring object.
3365 * @saveq: Pointer to the unsolicited iocb.
3367 * This function is called with no lock held by the ring event handler
3368 * when there is an unsolicited iocb posted to the response ring by the
3369 * firmware. This function gets the buffer associated with the iocbs
3370 * and calls the event handler for the ring. This function handles both
3371 * qring buffers and hbq buffers.
3372 * When the function returns 1 the caller can free the iocb object otherwise
3373 * upper layer functions will free the iocb objects.
3376 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3377 struct lpfc_iocbq *saveq)
3381 uint32_t Rctl, Type;
3382 struct lpfc_iocbq *iocbq;
3383 struct lpfc_dmabuf *dmzbuf;
3385 irsp = &(saveq->iocb);
3387 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
3388 if (pring->lpfc_sli_rcv_async_status)
3389 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
3391 lpfc_printf_log(phba,
3394 "0316 Ring %d handler: unexpected "
3395 "ASYNC_STATUS iocb received evt_code "
3398 irsp->un.asyncstat.evt_code);
3402 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
3403 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
3404 if (irsp->ulpBdeCount > 0) {
3405 dmzbuf = lpfc_sli_get_buff(phba, pring,
3406 irsp->un.ulpWord[3]);
3407 lpfc_in_buf_free(phba, dmzbuf);
3410 if (irsp->ulpBdeCount > 1) {
3411 dmzbuf = lpfc_sli_get_buff(phba, pring,
3412 irsp->unsli3.sli3Words[3]);
3413 lpfc_in_buf_free(phba, dmzbuf);
3416 if (irsp->ulpBdeCount > 2) {
3417 dmzbuf = lpfc_sli_get_buff(phba, pring,
3418 irsp->unsli3.sli3Words[7]);
3419 lpfc_in_buf_free(phba, dmzbuf);
3425 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
3426 if (irsp->ulpBdeCount != 0) {
3427 saveq->context2 = lpfc_sli_get_buff(phba, pring,
3428 irsp->un.ulpWord[3]);
3429 if (!saveq->context2)
3430 lpfc_printf_log(phba,
3433 "0341 Ring %d Cannot find buffer for "
3434 "an unsolicited iocb. tag 0x%x\n",
3436 irsp->un.ulpWord[3]);
3438 if (irsp->ulpBdeCount == 2) {
3439 saveq->context3 = lpfc_sli_get_buff(phba, pring,
3440 irsp->unsli3.sli3Words[7]);
3441 if (!saveq->context3)
3442 lpfc_printf_log(phba,
3445 "0342 Ring %d Cannot find buffer for an"
3446 " unsolicited iocb. tag 0x%x\n",
3448 irsp->unsli3.sli3Words[7]);
3450 list_for_each_entry(iocbq, &saveq->list, list) {
3451 irsp = &(iocbq->iocb);
3452 if (irsp->ulpBdeCount != 0) {
3453 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
3454 irsp->un.ulpWord[3]);
3455 if (!iocbq->context2)
3456 lpfc_printf_log(phba,
3459 "0343 Ring %d Cannot find "
3460 "buffer for an unsolicited iocb"
3461 ". tag 0x%x\n", pring->ringno,
3462 irsp->un.ulpWord[3]);
3464 if (irsp->ulpBdeCount == 2) {
3465 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
3466 irsp->unsli3.sli3Words[7]);
3467 if (!iocbq->context3)
3468 lpfc_printf_log(phba,
3471 "0344 Ring %d Cannot find "
3472 "buffer for an unsolicited "
3475 irsp->unsli3.sli3Words[7]);
3479 if (irsp->ulpBdeCount != 0 &&
3480 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
3481 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
3484 /* search continue save q for same XRI */
3485 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
3486 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
3487 saveq->iocb.unsli3.rcvsli3.ox_id) {
3488 list_add_tail(&saveq->list, &iocbq->list);
3494 list_add_tail(&saveq->clist,
3495 &pring->iocb_continue_saveq);
3496 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
3497 list_del_init(&iocbq->clist);
3499 irsp = &(saveq->iocb);
3503 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
3504 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
3505 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
3506 Rctl = FC_RCTL_ELS_REQ;
3509 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
3510 Rctl = w5p->hcsw.Rctl;
3511 Type = w5p->hcsw.Type;
3513 /* Firmware Workaround */
3514 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
3515 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
3516 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
3517 Rctl = FC_RCTL_ELS_REQ;
3519 w5p->hcsw.Rctl = Rctl;
3520 w5p->hcsw.Type = Type;
3524 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
3525 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3526 "0313 Ring %d handler: unexpected Rctl x%x "
3527 "Type x%x received\n",
3528 pring->ringno, Rctl, Type);
3534 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
3535 * @phba: Pointer to HBA context object.
3536 * @pring: Pointer to driver SLI ring object.
3537 * @prspiocb: Pointer to response iocb object.
3539 * This function looks up the iocb_lookup table to get the command iocb
3540 * corresponding to the given response iocb using the iotag of the
3541 * response iocb. The driver calls this function with the hbalock held
3542 * for SLI3 ports or the ring lock held for SLI4 ports.
3543 * This function returns the command iocb object if it finds the command
3544 * iocb else returns NULL.
3546 static struct lpfc_iocbq *
3547 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
3548 struct lpfc_sli_ring *pring,
3549 struct lpfc_iocbq *prspiocb)
3551 struct lpfc_iocbq *cmd_iocb = NULL;
3553 spinlock_t *temp_lock = NULL;
3554 unsigned long iflag = 0;
3556 if (phba->sli_rev == LPFC_SLI_REV4)
3557 temp_lock = &pring->ring_lock;
3559 temp_lock = &phba->hbalock;
3561 spin_lock_irqsave(temp_lock, iflag);
3562 iotag = prspiocb->iocb.ulpIoTag;
3564 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3565 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3566 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3567 /* remove from txcmpl queue list */
3568 list_del_init(&cmd_iocb->list);
3569 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3570 pring->txcmplq_cnt--;
3571 spin_unlock_irqrestore(temp_lock, iflag);
3576 spin_unlock_irqrestore(temp_lock, iflag);
3577 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3578 "0317 iotag x%x is out of "
3579 "range: max iotag x%x wd0 x%x\n",
3580 iotag, phba->sli.last_iotag,
3581 *(((uint32_t *) &prspiocb->iocb) + 7));
3586 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
3587 * @phba: Pointer to HBA context object.
3588 * @pring: Pointer to driver SLI ring object.
3591 * This function looks up the iocb_lookup table to get the command iocb
3592 * corresponding to the given iotag. The driver calls this function with
3593 * the ring lock held because this function is an SLI4 port only helper.
3594 * This function returns the command iocb object if it finds the command
3595 * iocb else returns NULL.
3597 static struct lpfc_iocbq *
3598 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
3599 struct lpfc_sli_ring *pring, uint16_t iotag)
3601 struct lpfc_iocbq *cmd_iocb = NULL;
3602 spinlock_t *temp_lock = NULL;
3603 unsigned long iflag = 0;
3605 if (phba->sli_rev == LPFC_SLI_REV4)
3606 temp_lock = &pring->ring_lock;
3608 temp_lock = &phba->hbalock;
3610 spin_lock_irqsave(temp_lock, iflag);
3611 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3612 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3613 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3614 /* remove from txcmpl queue list */
3615 list_del_init(&cmd_iocb->list);
3616 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3617 pring->txcmplq_cnt--;
3618 spin_unlock_irqrestore(temp_lock, iflag);
3623 spin_unlock_irqrestore(temp_lock, iflag);
3624 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3625 "0372 iotag x%x lookup error: max iotag (x%x) "
3627 iotag, phba->sli.last_iotag,
3628 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
3633 * lpfc_sli_process_sol_iocb - process solicited iocb completion
3634 * @phba: Pointer to HBA context object.
3635 * @pring: Pointer to driver SLI ring object.
3636 * @saveq: Pointer to the response iocb to be processed.
3638 * This function is called by the ring event handler for non-fcp
3639 * rings when there is a new response iocb in the response ring.
3640 * The caller is not required to hold any locks. This function
3641 * gets the command iocb associated with the response iocb and
3642 * calls the completion handler for the command iocb. If there
3643 * is no completion handler, the function will free the resources
3644 * associated with command iocb. If the response iocb is for
3645 * an already aborted command iocb, the status of the completion
3646 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
3647 * This function always returns 1.
3650 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3651 struct lpfc_iocbq *saveq)
3653 struct lpfc_iocbq *cmdiocbp;
3655 unsigned long iflag;
3657 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
3659 if (cmdiocbp->iocb_cmpl) {
3661 * If an ELS command failed send an event to mgmt
3664 if (saveq->iocb.ulpStatus &&
3665 (pring->ringno == LPFC_ELS_RING) &&
3666 (cmdiocbp->iocb.ulpCommand ==
3667 CMD_ELS_REQUEST64_CR))
3668 lpfc_send_els_failure_event(phba,
3672 * Post all ELS completions to the worker thread.
3673 * All other are passed to the completion callback.
3675 if (pring->ringno == LPFC_ELS_RING) {
3676 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3677 (cmdiocbp->iocb_flag &
3678 LPFC_DRIVER_ABORTED)) {
3679 spin_lock_irqsave(&phba->hbalock,
3681 cmdiocbp->iocb_flag &=
3682 ~LPFC_DRIVER_ABORTED;
3683 spin_unlock_irqrestore(&phba->hbalock,
3685 saveq->iocb.ulpStatus =
3686 IOSTAT_LOCAL_REJECT;
3687 saveq->iocb.un.ulpWord[4] =
3690 /* Firmware could still be in progress
3691 * of DMAing payload, so don't free data
3692 * buffer till after a hbeat.
3694 spin_lock_irqsave(&phba->hbalock,
3696 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
3697 spin_unlock_irqrestore(&phba->hbalock,
3700 if (phba->sli_rev == LPFC_SLI_REV4) {
3701 if (saveq->iocb_flag &
3702 LPFC_EXCHANGE_BUSY) {
3703 /* Set cmdiocb flag for the
3704 * exchange busy so sgl (xri)
3705 * will not be released until
3706 * the abort xri is received
3710 &phba->hbalock, iflag);
3711 cmdiocbp->iocb_flag |=
3713 spin_unlock_irqrestore(
3714 &phba->hbalock, iflag);
3716 if (cmdiocbp->iocb_flag &
3717 LPFC_DRIVER_ABORTED) {
3719 * Clear LPFC_DRIVER_ABORTED
3720 * bit in case it was driver
3724 &phba->hbalock, iflag);
3725 cmdiocbp->iocb_flag &=
3726 ~LPFC_DRIVER_ABORTED;
3727 spin_unlock_irqrestore(
3728 &phba->hbalock, iflag);
3729 cmdiocbp->iocb.ulpStatus =
3730 IOSTAT_LOCAL_REJECT;
3731 cmdiocbp->iocb.un.ulpWord[4] =
3732 IOERR_ABORT_REQUESTED;
3734 * For SLI4, irsiocb contains
3735 * NO_XRI in sli_xritag, it
3736 * shall not affect releasing
3737 * sgl (xri) process.
3739 saveq->iocb.ulpStatus =
3740 IOSTAT_LOCAL_REJECT;
3741 saveq->iocb.un.ulpWord[4] =
3744 &phba->hbalock, iflag);
3746 LPFC_DELAY_MEM_FREE;
3747 spin_unlock_irqrestore(
3748 &phba->hbalock, iflag);
3752 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
3754 lpfc_sli_release_iocbq(phba, cmdiocbp);
3757 * Unknown initiating command based on the response iotag.
3758 * This could be the case on the ELS ring because of
3761 if (pring->ringno != LPFC_ELS_RING) {
3763 * Ring <ringno> handler: unexpected completion IoTag
3766 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3767 "0322 Ring %d handler: "
3768 "unexpected completion IoTag x%x "
3769 "Data: x%x x%x x%x x%x\n",
3771 saveq->iocb.ulpIoTag,
3772 saveq->iocb.ulpStatus,
3773 saveq->iocb.un.ulpWord[4],
3774 saveq->iocb.ulpCommand,
3775 saveq->iocb.ulpContext);
3783 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
3784 * @phba: Pointer to HBA context object.
3785 * @pring: Pointer to driver SLI ring object.
3787 * This function is called from the iocb ring event handlers when
3788 * put pointer is ahead of the get pointer for a ring. This function signal
3789 * an error attention condition to the worker thread and the worker
3790 * thread will transition the HBA to offline state.
3793 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3795 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3797 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3798 * rsp ring <portRspMax>
3800 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3801 "0312 Ring %d handler: portRspPut %d "
3802 "is bigger than rsp ring %d\n",
3803 pring->ringno, le32_to_cpu(pgp->rspPutInx),
3804 pring->sli.sli3.numRiocb);
3806 phba->link_state = LPFC_HBA_ERROR;
3809 * All error attention handlers are posted to
3812 phba->work_ha |= HA_ERATT;
3813 phba->work_hs = HS_FFER3;
3815 lpfc_worker_wake_up(phba);
3821 * lpfc_poll_eratt - Error attention polling timer timeout handler
3822 * @t: Context to fetch pointer to address of HBA context object from.
3824 * This function is invoked by the Error Attention polling timer when the
3825 * timer times out. It will check the SLI Error Attention register for
3826 * possible attention events. If so, it will post an Error Attention event
3827 * and wake up worker thread to process it. Otherwise, it will set up the
3828 * Error Attention polling timer for the next poll.
3830 void lpfc_poll_eratt(struct timer_list *t)
3832 struct lpfc_hba *phba;
3834 uint64_t sli_intr, cnt;
3836 phba = from_timer(phba, t, eratt_poll);
3838 /* Here we will also keep track of interrupts per sec of the hba */
3839 sli_intr = phba->sli.slistat.sli_intr;
3841 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3842 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3845 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3847 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3848 do_div(cnt, phba->eratt_poll_interval);
3849 phba->sli.slistat.sli_ips = cnt;
3851 phba->sli.slistat.sli_prev_intr = sli_intr;
3853 /* Check chip HA register for error event */
3854 eratt = lpfc_sli_check_eratt(phba);
3857 /* Tell the worker thread there is work to do */
3858 lpfc_worker_wake_up(phba);
3860 /* Restart the timer for next eratt poll */
3861 mod_timer(&phba->eratt_poll,
3863 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3869 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3870 * @phba: Pointer to HBA context object.
3871 * @pring: Pointer to driver SLI ring object.
3872 * @mask: Host attention register mask for this ring.
3874 * This function is called from the interrupt context when there is a ring
3875 * event for the fcp ring. The caller does not hold any lock.
3876 * The function processes each response iocb in the response ring until it
3877 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3878 * LE bit set. The function will call the completion handler of the command iocb
3879 * if the response iocb indicates a completion for a command iocb or it is
3880 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3881 * function if this is an unsolicited iocb.
3882 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3883 * to check it explicitly.
3886 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3887 struct lpfc_sli_ring *pring, uint32_t mask)
3889 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3890 IOCB_t *irsp = NULL;
3891 IOCB_t *entry = NULL;
3892 struct lpfc_iocbq *cmdiocbq = NULL;
3893 struct lpfc_iocbq rspiocbq;
3895 uint32_t portRspPut, portRspMax;
3897 lpfc_iocb_type type;
3898 unsigned long iflag;
3899 uint32_t rsp_cmpl = 0;
3901 spin_lock_irqsave(&phba->hbalock, iflag);
3902 pring->stats.iocb_event++;
3905 * The next available response entry should never exceed the maximum
3906 * entries. If it does, treat it as an adapter hardware error.
3908 portRspMax = pring->sli.sli3.numRiocb;
3909 portRspPut = le32_to_cpu(pgp->rspPutInx);
3910 if (unlikely(portRspPut >= portRspMax)) {
3911 lpfc_sli_rsp_pointers_error(phba, pring);
3912 spin_unlock_irqrestore(&phba->hbalock, iflag);
3915 if (phba->fcp_ring_in_use) {
3916 spin_unlock_irqrestore(&phba->hbalock, iflag);
3919 phba->fcp_ring_in_use = 1;
3922 while (pring->sli.sli3.rspidx != portRspPut) {
3924 * Fetch an entry off the ring and copy it into a local data
3925 * structure. The copy involves a byte-swap since the
3926 * network byte order and pci byte orders are different.
3928 entry = lpfc_resp_iocb(phba, pring);
3929 phba->last_completion_time = jiffies;
3931 if (++pring->sli.sli3.rspidx >= portRspMax)
3932 pring->sli.sli3.rspidx = 0;
3934 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3935 (uint32_t *) &rspiocbq.iocb,
3936 phba->iocb_rsp_size);
3937 INIT_LIST_HEAD(&(rspiocbq.list));
3938 irsp = &rspiocbq.iocb;
3940 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3941 pring->stats.iocb_rsp++;
3944 if (unlikely(irsp->ulpStatus)) {
3946 * If resource errors reported from HBA, reduce
3947 * queuedepths of the SCSI device.
3949 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3950 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3951 IOERR_NO_RESOURCES)) {
3952 spin_unlock_irqrestore(&phba->hbalock, iflag);
3953 phba->lpfc_rampdown_queue_depth(phba);
3954 spin_lock_irqsave(&phba->hbalock, iflag);
3957 /* Rsp ring <ringno> error: IOCB */
3958 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3959 "0336 Rsp Ring %d error: IOCB Data: "
3960 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3962 irsp->un.ulpWord[0],
3963 irsp->un.ulpWord[1],
3964 irsp->un.ulpWord[2],
3965 irsp->un.ulpWord[3],
3966 irsp->un.ulpWord[4],
3967 irsp->un.ulpWord[5],
3968 *(uint32_t *)&irsp->un1,
3969 *((uint32_t *)&irsp->un1 + 1));
3973 case LPFC_ABORT_IOCB:
3976 * Idle exchange closed via ABTS from port. No iocb
3977 * resources need to be recovered.
3979 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3980 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3981 "0333 IOCB cmd 0x%x"
3982 " processed. Skipping"
3988 spin_unlock_irqrestore(&phba->hbalock, iflag);
3989 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3991 spin_lock_irqsave(&phba->hbalock, iflag);
3992 if (unlikely(!cmdiocbq))
3994 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3995 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3996 if (cmdiocbq->iocb_cmpl) {
3997 spin_unlock_irqrestore(&phba->hbalock, iflag);
3998 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
4000 spin_lock_irqsave(&phba->hbalock, iflag);
4003 case LPFC_UNSOL_IOCB:
4004 spin_unlock_irqrestore(&phba->hbalock, iflag);
4005 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
4006 spin_lock_irqsave(&phba->hbalock, iflag);
4009 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
4010 char adaptermsg[LPFC_MAX_ADPTMSG];
4011 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
4012 memcpy(&adaptermsg[0], (uint8_t *) irsp,
4014 dev_warn(&((phba->pcidev)->dev),
4016 phba->brd_no, adaptermsg);
4018 /* Unknown IOCB command */
4019 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4020 "0334 Unknown IOCB command "
4021 "Data: x%x, x%x x%x x%x x%x\n",
4022 type, irsp->ulpCommand,
4031 * The response IOCB has been processed. Update the ring
4032 * pointer in SLIM. If the port response put pointer has not
4033 * been updated, sync the pgp->rspPutInx and fetch the new port
4034 * response put pointer.
4036 writel(pring->sli.sli3.rspidx,
4037 &phba->host_gp[pring->ringno].rspGetInx);
4039 if (pring->sli.sli3.rspidx == portRspPut)
4040 portRspPut = le32_to_cpu(pgp->rspPutInx);
4043 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
4044 pring->stats.iocb_rsp_full++;
4045 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
4046 writel(status, phba->CAregaddr);
4047 readl(phba->CAregaddr);
4049 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
4050 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
4051 pring->stats.iocb_cmd_empty++;
4053 /* Force update of the local copy of cmdGetInx */
4054 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
4055 lpfc_sli_resume_iocb(phba, pring);
4057 if ((pring->lpfc_sli_cmd_available))
4058 (pring->lpfc_sli_cmd_available) (phba, pring);
4062 phba->fcp_ring_in_use = 0;
4063 spin_unlock_irqrestore(&phba->hbalock, iflag);
4068 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
4069 * @phba: Pointer to HBA context object.
4070 * @pring: Pointer to driver SLI ring object.
4071 * @rspiocbp: Pointer to driver response IOCB object.
4073 * This function is called from the worker thread when there is a slow-path
4074 * response IOCB to process. This function chains all the response iocbs until
4075 * seeing the iocb with the LE bit set. The function will call
4076 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
4077 * completion of a command iocb. The function will call the
4078 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
4079 * The function frees the resources or calls the completion handler if this
4080 * iocb is an abort completion. The function returns NULL when the response
4081 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
4082 * this function shall chain the iocb on to the iocb_continueq and return the
4083 * response iocb passed in.
4085 static struct lpfc_iocbq *
4086 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4087 struct lpfc_iocbq *rspiocbp)
4089 struct lpfc_iocbq *saveq;
4090 struct lpfc_iocbq *cmdiocbp;
4091 struct lpfc_iocbq *next_iocb;
4092 IOCB_t *irsp = NULL;
4093 uint32_t free_saveq;
4094 uint8_t iocb_cmd_type;
4095 lpfc_iocb_type type;
4096 unsigned long iflag;
4099 spin_lock_irqsave(&phba->hbalock, iflag);
4100 /* First add the response iocb to the countinueq list */
4101 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
4102 pring->iocb_continueq_cnt++;
4104 /* Now, determine whether the list is completed for processing */
4105 irsp = &rspiocbp->iocb;
4108 * By default, the driver expects to free all resources
4109 * associated with this iocb completion.
4112 saveq = list_get_first(&pring->iocb_continueq,
4113 struct lpfc_iocbq, list);
4114 irsp = &(saveq->iocb);
4115 list_del_init(&pring->iocb_continueq);
4116 pring->iocb_continueq_cnt = 0;
4118 pring->stats.iocb_rsp++;
4121 * If resource errors reported from HBA, reduce
4122 * queuedepths of the SCSI device.
4124 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
4125 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
4126 IOERR_NO_RESOURCES)) {
4127 spin_unlock_irqrestore(&phba->hbalock, iflag);
4128 phba->lpfc_rampdown_queue_depth(phba);
4129 spin_lock_irqsave(&phba->hbalock, iflag);
4132 if (irsp->ulpStatus) {
4133 /* Rsp ring <ringno> error: IOCB */
4134 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4135 "0328 Rsp Ring %d error: "
4140 "x%x x%x x%x x%x\n",
4142 irsp->un.ulpWord[0],
4143 irsp->un.ulpWord[1],
4144 irsp->un.ulpWord[2],
4145 irsp->un.ulpWord[3],
4146 irsp->un.ulpWord[4],
4147 irsp->un.ulpWord[5],
4148 *(((uint32_t *) irsp) + 6),
4149 *(((uint32_t *) irsp) + 7),
4150 *(((uint32_t *) irsp) + 8),
4151 *(((uint32_t *) irsp) + 9),
4152 *(((uint32_t *) irsp) + 10),
4153 *(((uint32_t *) irsp) + 11),
4154 *(((uint32_t *) irsp) + 12),
4155 *(((uint32_t *) irsp) + 13),
4156 *(((uint32_t *) irsp) + 14),
4157 *(((uint32_t *) irsp) + 15));
4161 * Fetch the IOCB command type and call the correct completion
4162 * routine. Solicited and Unsolicited IOCBs on the ELS ring
4163 * get freed back to the lpfc_iocb_list by the discovery
4166 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
4167 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
4170 spin_unlock_irqrestore(&phba->hbalock, iflag);
4171 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
4172 spin_lock_irqsave(&phba->hbalock, iflag);
4175 case LPFC_UNSOL_IOCB:
4176 spin_unlock_irqrestore(&phba->hbalock, iflag);
4177 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
4178 spin_lock_irqsave(&phba->hbalock, iflag);
4183 case LPFC_ABORT_IOCB:
4185 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) {
4186 spin_unlock_irqrestore(&phba->hbalock, iflag);
4187 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
4189 spin_lock_irqsave(&phba->hbalock, iflag);
4192 /* Call the specified completion routine */
4193 if (cmdiocbp->iocb_cmpl) {
4194 spin_unlock_irqrestore(&phba->hbalock,
4196 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
4198 spin_lock_irqsave(&phba->hbalock,
4201 __lpfc_sli_release_iocbq(phba,
4206 case LPFC_UNKNOWN_IOCB:
4207 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
4208 char adaptermsg[LPFC_MAX_ADPTMSG];
4209 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
4210 memcpy(&adaptermsg[0], (uint8_t *)irsp,
4212 dev_warn(&((phba->pcidev)->dev),
4214 phba->brd_no, adaptermsg);
4216 /* Unknown IOCB command */
4217 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4218 "0335 Unknown IOCB "
4219 "command Data: x%x "
4230 list_for_each_entry_safe(rspiocbp, next_iocb,
4231 &saveq->list, list) {
4232 list_del_init(&rspiocbp->list);
4233 __lpfc_sli_release_iocbq(phba, rspiocbp);
4235 __lpfc_sli_release_iocbq(phba, saveq);
4239 spin_unlock_irqrestore(&phba->hbalock, iflag);
4244 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
4245 * @phba: Pointer to HBA context object.
4246 * @pring: Pointer to driver SLI ring object.
4247 * @mask: Host attention register mask for this ring.
4249 * This routine wraps the actual slow_ring event process routine from the
4250 * API jump table function pointer from the lpfc_hba struct.
4253 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
4254 struct lpfc_sli_ring *pring, uint32_t mask)
4256 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
4260 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
4261 * @phba: Pointer to HBA context object.
4262 * @pring: Pointer to driver SLI ring object.
4263 * @mask: Host attention register mask for this ring.
4265 * This function is called from the worker thread when there is a ring event
4266 * for non-fcp rings. The caller does not hold any lock. The function will
4267 * remove each response iocb in the response ring and calls the handle
4268 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
4271 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
4272 struct lpfc_sli_ring *pring, uint32_t mask)
4274 struct lpfc_pgp *pgp;
4276 IOCB_t *irsp = NULL;
4277 struct lpfc_iocbq *rspiocbp = NULL;
4278 uint32_t portRspPut, portRspMax;
4279 unsigned long iflag;
4282 pgp = &phba->port_gp[pring->ringno];
4283 spin_lock_irqsave(&phba->hbalock, iflag);
4284 pring->stats.iocb_event++;
4287 * The next available response entry should never exceed the maximum
4288 * entries. If it does, treat it as an adapter hardware error.
4290 portRspMax = pring->sli.sli3.numRiocb;
4291 portRspPut = le32_to_cpu(pgp->rspPutInx);
4292 if (portRspPut >= portRspMax) {
4294 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
4295 * rsp ring <portRspMax>
4297 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4298 "0303 Ring %d handler: portRspPut %d "
4299 "is bigger than rsp ring %d\n",
4300 pring->ringno, portRspPut, portRspMax);
4302 phba->link_state = LPFC_HBA_ERROR;
4303 spin_unlock_irqrestore(&phba->hbalock, iflag);
4305 phba->work_hs = HS_FFER3;
4306 lpfc_handle_eratt(phba);
4312 while (pring->sli.sli3.rspidx != portRspPut) {
4314 * Build a completion list and call the appropriate handler.
4315 * The process is to get the next available response iocb, get
4316 * a free iocb from the list, copy the response data into the
4317 * free iocb, insert to the continuation list, and update the
4318 * next response index to slim. This process makes response
4319 * iocb's in the ring available to DMA as fast as possible but
4320 * pays a penalty for a copy operation. Since the iocb is
4321 * only 32 bytes, this penalty is considered small relative to
4322 * the PCI reads for register values and a slim write. When
4323 * the ulpLe field is set, the entire Command has been
4326 entry = lpfc_resp_iocb(phba, pring);
4328 phba->last_completion_time = jiffies;
4329 rspiocbp = __lpfc_sli_get_iocbq(phba);
4330 if (rspiocbp == NULL) {
4331 printk(KERN_ERR "%s: out of buffers! Failing "
4332 "completion.\n", __func__);
4336 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
4337 phba->iocb_rsp_size);
4338 irsp = &rspiocbp->iocb;
4340 if (++pring->sli.sli3.rspidx >= portRspMax)
4341 pring->sli.sli3.rspidx = 0;
4343 if (pring->ringno == LPFC_ELS_RING) {
4344 lpfc_debugfs_slow_ring_trc(phba,
4345 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
4346 *(((uint32_t *) irsp) + 4),
4347 *(((uint32_t *) irsp) + 6),
4348 *(((uint32_t *) irsp) + 7));
4351 writel(pring->sli.sli3.rspidx,
4352 &phba->host_gp[pring->ringno].rspGetInx);
4354 spin_unlock_irqrestore(&phba->hbalock, iflag);
4355 /* Handle the response IOCB */
4356 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
4357 spin_lock_irqsave(&phba->hbalock, iflag);
4360 * If the port response put pointer has not been updated, sync
4361 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
4362 * response put pointer.
4364 if (pring->sli.sli3.rspidx == portRspPut) {
4365 portRspPut = le32_to_cpu(pgp->rspPutInx);
4367 } /* while (pring->sli.sli3.rspidx != portRspPut) */
4369 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
4370 /* At least one response entry has been freed */
4371 pring->stats.iocb_rsp_full++;
4372 /* SET RxRE_RSP in Chip Att register */
4373 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
4374 writel(status, phba->CAregaddr);
4375 readl(phba->CAregaddr); /* flush */
4377 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
4378 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
4379 pring->stats.iocb_cmd_empty++;
4381 /* Force update of the local copy of cmdGetInx */
4382 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
4383 lpfc_sli_resume_iocb(phba, pring);
4385 if ((pring->lpfc_sli_cmd_available))
4386 (pring->lpfc_sli_cmd_available) (phba, pring);
4390 spin_unlock_irqrestore(&phba->hbalock, iflag);
4395 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
4396 * @phba: Pointer to HBA context object.
4397 * @pring: Pointer to driver SLI ring object.
4398 * @mask: Host attention register mask for this ring.
4400 * This function is called from the worker thread when there is a pending
4401 * ELS response iocb on the driver internal slow-path response iocb worker
4402 * queue. The caller does not hold any lock. The function will remove each
4403 * response iocb from the response worker queue and calls the handle
4404 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
4407 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
4408 struct lpfc_sli_ring *pring, uint32_t mask)
4410 struct lpfc_iocbq *irspiocbq;
4411 struct hbq_dmabuf *dmabuf;
4412 struct lpfc_cq_event *cq_event;
4413 unsigned long iflag;
4416 spin_lock_irqsave(&phba->hbalock, iflag);
4417 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
4418 spin_unlock_irqrestore(&phba->hbalock, iflag);
4419 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
4420 /* Get the response iocb from the head of work queue */
4421 spin_lock_irqsave(&phba->hbalock, iflag);
4422 list_remove_head(&phba->sli4_hba.sp_queue_event,
4423 cq_event, struct lpfc_cq_event, list);
4424 spin_unlock_irqrestore(&phba->hbalock, iflag);
4426 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
4427 case CQE_CODE_COMPL_WQE:
4428 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
4430 /* Translate ELS WCQE to response IOCBQ */
4431 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
4434 lpfc_sli_sp_handle_rspiocb(phba, pring,
4438 case CQE_CODE_RECEIVE:
4439 case CQE_CODE_RECEIVE_V1:
4440 dmabuf = container_of(cq_event, struct hbq_dmabuf,
4442 lpfc_sli4_handle_received_buffer(phba, dmabuf);
4449 /* Limit the number of events to 64 to avoid soft lockups */
4456 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
4457 * @phba: Pointer to HBA context object.
4458 * @pring: Pointer to driver SLI ring object.
4460 * This function aborts all iocbs in the given ring and frees all the iocb
4461 * objects in txq. This function issues an abort iocb for all the iocb commands
4462 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
4463 * the return of this function. The caller is not required to hold any locks.
4466 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
4468 LIST_HEAD(completions);
4469 struct lpfc_iocbq *iocb, *next_iocb;
4471 if (pring->ringno == LPFC_ELS_RING) {
4472 lpfc_fabric_abort_hba(phba);
4475 /* Error everything on txq and txcmplq
4478 if (phba->sli_rev >= LPFC_SLI_REV4) {
4479 spin_lock_irq(&pring->ring_lock);
4480 list_splice_init(&pring->txq, &completions);
4482 spin_unlock_irq(&pring->ring_lock);
4484 spin_lock_irq(&phba->hbalock);
4485 /* Next issue ABTS for everything on the txcmplq */
4486 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
4487 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
4488 spin_unlock_irq(&phba->hbalock);
4490 spin_lock_irq(&phba->hbalock);
4491 list_splice_init(&pring->txq, &completions);
4494 /* Next issue ABTS for everything on the txcmplq */
4495 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
4496 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
4497 spin_unlock_irq(&phba->hbalock);
4499 /* Make sure HBA is alive */
4500 lpfc_issue_hb_tmo(phba);
4502 /* Cancel all the IOCBs from the completions list */
4503 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4508 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
4509 * @phba: Pointer to HBA context object.
4511 * This function aborts all iocbs in FCP rings and frees all the iocb
4512 * objects in txq. This function issues an abort iocb for all the iocb commands
4513 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
4514 * the return of this function. The caller is not required to hold any locks.
4517 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
4519 struct lpfc_sli *psli = &phba->sli;
4520 struct lpfc_sli_ring *pring;
4523 /* Look on all the FCP Rings for the iotag */
4524 if (phba->sli_rev >= LPFC_SLI_REV4) {
4525 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4526 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4527 lpfc_sli_abort_iocb_ring(phba, pring);
4530 pring = &psli->sli3_ring[LPFC_FCP_RING];
4531 lpfc_sli_abort_iocb_ring(phba, pring);
4536 * lpfc_sli_flush_io_rings - flush all iocbs in the IO ring
4537 * @phba: Pointer to HBA context object.
4539 * This function flushes all iocbs in the IO ring and frees all the iocb
4540 * objects in txq and txcmplq. This function will not issue abort iocbs
4541 * for all the iocb commands in txcmplq, they will just be returned with
4542 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
4543 * slot has been permanently disabled.
4546 lpfc_sli_flush_io_rings(struct lpfc_hba *phba)
4550 struct lpfc_sli *psli = &phba->sli;
4551 struct lpfc_sli_ring *pring;
4553 struct lpfc_iocbq *piocb, *next_iocb;
4555 spin_lock_irq(&phba->hbalock);
4556 if (phba->hba_flag & HBA_IOQ_FLUSH ||
4557 !phba->sli4_hba.hdwq) {
4558 spin_unlock_irq(&phba->hbalock);
4561 /* Indicate the I/O queues are flushed */
4562 phba->hba_flag |= HBA_IOQ_FLUSH;
4563 spin_unlock_irq(&phba->hbalock);
4565 /* Look on all the FCP Rings for the iotag */
4566 if (phba->sli_rev >= LPFC_SLI_REV4) {
4567 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4568 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4570 spin_lock_irq(&pring->ring_lock);
4571 /* Retrieve everything on txq */
4572 list_splice_init(&pring->txq, &txq);
4573 list_for_each_entry_safe(piocb, next_iocb,
4574 &pring->txcmplq, list)
4575 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4576 /* Retrieve everything on the txcmplq */
4577 list_splice_init(&pring->txcmplq, &txcmplq);
4579 pring->txcmplq_cnt = 0;
4580 spin_unlock_irq(&pring->ring_lock);
4583 lpfc_sli_cancel_iocbs(phba, &txq,
4584 IOSTAT_LOCAL_REJECT,
4586 /* Flush the txcmpq */
4587 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4588 IOSTAT_LOCAL_REJECT,
4592 pring = &psli->sli3_ring[LPFC_FCP_RING];
4594 spin_lock_irq(&phba->hbalock);
4595 /* Retrieve everything on txq */
4596 list_splice_init(&pring->txq, &txq);
4597 list_for_each_entry_safe(piocb, next_iocb,
4598 &pring->txcmplq, list)
4599 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4600 /* Retrieve everything on the txcmplq */
4601 list_splice_init(&pring->txcmplq, &txcmplq);
4603 pring->txcmplq_cnt = 0;
4604 spin_unlock_irq(&phba->hbalock);
4607 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
4609 /* Flush the txcmpq */
4610 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
4616 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
4617 * @phba: Pointer to HBA context object.
4618 * @mask: Bit mask to be checked.
4620 * This function reads the host status register and compares
4621 * with the provided bit mask to check if HBA completed
4622 * the restart. This function will wait in a loop for the
4623 * HBA to complete restart. If the HBA does not restart within
4624 * 15 iterations, the function will reset the HBA again. The
4625 * function returns 1 when HBA fail to restart otherwise returns
4629 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
4635 /* Read the HBA Host Status Register */
4636 if (lpfc_readl(phba->HSregaddr, &status))
4639 phba->hba_flag |= HBA_NEEDS_CFG_PORT;
4642 * Check status register every 100ms for 5 retries, then every
4643 * 500ms for 5, then every 2.5 sec for 5, then reset board and
4644 * every 2.5 sec for 4.
4645 * Break our of the loop if errors occurred during init.
4647 while (((status & mask) != mask) &&
4648 !(status & HS_FFERM) &&
4660 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4661 lpfc_sli_brdrestart(phba);
4663 /* Read the HBA Host Status Register */
4664 if (lpfc_readl(phba->HSregaddr, &status)) {
4670 /* Check to see if any errors occurred during init */
4671 if ((status & HS_FFERM) || (i >= 20)) {
4672 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4673 "2751 Adapter failed to restart, "
4674 "status reg x%x, FW Data: A8 x%x AC x%x\n",
4676 readl(phba->MBslimaddr + 0xa8),
4677 readl(phba->MBslimaddr + 0xac));
4678 phba->link_state = LPFC_HBA_ERROR;
4686 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
4687 * @phba: Pointer to HBA context object.
4688 * @mask: Bit mask to be checked.
4690 * This function checks the host status register to check if HBA is
4691 * ready. This function will wait in a loop for the HBA to be ready
4692 * If the HBA is not ready , the function will will reset the HBA PCI
4693 * function again. The function returns 1 when HBA fail to be ready
4694 * otherwise returns zero.
4697 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
4702 /* Read the HBA Host Status Register */
4703 status = lpfc_sli4_post_status_check(phba);
4706 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4707 lpfc_sli_brdrestart(phba);
4708 status = lpfc_sli4_post_status_check(phba);
4711 /* Check to see if any errors occurred during init */
4713 phba->link_state = LPFC_HBA_ERROR;
4716 phba->sli4_hba.intr_enable = 0;
4718 phba->hba_flag &= ~HBA_SETUP;
4723 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
4724 * @phba: Pointer to HBA context object.
4725 * @mask: Bit mask to be checked.
4727 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
4728 * from the API jump table function pointer from the lpfc_hba struct.
4731 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
4733 return phba->lpfc_sli_brdready(phba, mask);
4736 #define BARRIER_TEST_PATTERN (0xdeadbeef)
4739 * lpfc_reset_barrier - Make HBA ready for HBA reset
4740 * @phba: Pointer to HBA context object.
4742 * This function is called before resetting an HBA. This function is called
4743 * with hbalock held and requests HBA to quiesce DMAs before a reset.
4745 void lpfc_reset_barrier(struct lpfc_hba *phba)
4747 uint32_t __iomem *resp_buf;
4748 uint32_t __iomem *mbox_buf;
4749 volatile uint32_t mbox;
4750 uint32_t hc_copy, ha_copy, resp_data;
4754 lockdep_assert_held(&phba->hbalock);
4756 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4757 if (hdrtype != 0x80 ||
4758 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4759 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4763 * Tell the other part of the chip to suspend temporarily all
4766 resp_buf = phba->MBslimaddr;
4768 /* Disable the error attention */
4769 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4771 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4772 readl(phba->HCregaddr); /* flush */
4773 phba->link_flag |= LS_IGNORE_ERATT;
4775 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4777 if (ha_copy & HA_ERATT) {
4778 /* Clear Chip error bit */
4779 writel(HA_ERATT, phba->HAregaddr);
4780 phba->pport->stopped = 1;
4784 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4785 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4787 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4788 mbox_buf = phba->MBslimaddr;
4789 writel(mbox, mbox_buf);
4791 for (i = 0; i < 50; i++) {
4792 if (lpfc_readl((resp_buf + 1), &resp_data))
4794 if (resp_data != ~(BARRIER_TEST_PATTERN))
4800 if (lpfc_readl((resp_buf + 1), &resp_data))
4802 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4803 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4804 phba->pport->stopped)
4810 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4812 for (i = 0; i < 500; i++) {
4813 if (lpfc_readl(resp_buf, &resp_data))
4815 if (resp_data != mbox)
4824 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4826 if (!(ha_copy & HA_ERATT))
4832 if (readl(phba->HAregaddr) & HA_ERATT) {
4833 writel(HA_ERATT, phba->HAregaddr);
4834 phba->pport->stopped = 1;
4838 phba->link_flag &= ~LS_IGNORE_ERATT;
4839 writel(hc_copy, phba->HCregaddr);
4840 readl(phba->HCregaddr); /* flush */
4844 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4845 * @phba: Pointer to HBA context object.
4847 * This function issues a kill_board mailbox command and waits for
4848 * the error attention interrupt. This function is called for stopping
4849 * the firmware processing. The caller is not required to hold any
4850 * locks. This function calls lpfc_hba_down_post function to free
4851 * any pending commands after the kill. The function will return 1 when it
4852 * fails to kill the board else will return 0.
4855 lpfc_sli_brdkill(struct lpfc_hba *phba)
4857 struct lpfc_sli *psli;
4867 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4868 "0329 Kill HBA Data: x%x x%x\n",
4869 phba->pport->port_state, psli->sli_flag);
4871 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4875 /* Disable the error attention */
4876 spin_lock_irq(&phba->hbalock);
4877 if (lpfc_readl(phba->HCregaddr, &status)) {
4878 spin_unlock_irq(&phba->hbalock);
4879 mempool_free(pmb, phba->mbox_mem_pool);
4882 status &= ~HC_ERINT_ENA;
4883 writel(status, phba->HCregaddr);
4884 readl(phba->HCregaddr); /* flush */
4885 phba->link_flag |= LS_IGNORE_ERATT;
4886 spin_unlock_irq(&phba->hbalock);
4888 lpfc_kill_board(phba, pmb);
4889 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4890 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4892 if (retval != MBX_SUCCESS) {
4893 if (retval != MBX_BUSY)
4894 mempool_free(pmb, phba->mbox_mem_pool);
4895 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4896 "2752 KILL_BOARD command failed retval %d\n",
4898 spin_lock_irq(&phba->hbalock);
4899 phba->link_flag &= ~LS_IGNORE_ERATT;
4900 spin_unlock_irq(&phba->hbalock);
4904 spin_lock_irq(&phba->hbalock);
4905 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4906 spin_unlock_irq(&phba->hbalock);
4908 mempool_free(pmb, phba->mbox_mem_pool);
4910 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4911 * attention every 100ms for 3 seconds. If we don't get ERATT after
4912 * 3 seconds we still set HBA_ERROR state because the status of the
4913 * board is now undefined.
4915 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4917 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4919 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4923 del_timer_sync(&psli->mbox_tmo);
4924 if (ha_copy & HA_ERATT) {
4925 writel(HA_ERATT, phba->HAregaddr);
4926 phba->pport->stopped = 1;
4928 spin_lock_irq(&phba->hbalock);
4929 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4930 psli->mbox_active = NULL;
4931 phba->link_flag &= ~LS_IGNORE_ERATT;
4932 spin_unlock_irq(&phba->hbalock);
4934 lpfc_hba_down_post(phba);
4935 phba->link_state = LPFC_HBA_ERROR;
4937 return ha_copy & HA_ERATT ? 0 : 1;
4941 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4942 * @phba: Pointer to HBA context object.
4944 * This function resets the HBA by writing HC_INITFF to the control
4945 * register. After the HBA resets, this function resets all the iocb ring
4946 * indices. This function disables PCI layer parity checking during
4948 * This function returns 0 always.
4949 * The caller is not required to hold any locks.
4952 lpfc_sli_brdreset(struct lpfc_hba *phba)
4954 struct lpfc_sli *psli;
4955 struct lpfc_sli_ring *pring;
4962 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4963 "0325 Reset HBA Data: x%x x%x\n",
4964 (phba->pport) ? phba->pport->port_state : 0,
4967 /* perform board reset */
4968 phba->fc_eventTag = 0;
4969 phba->link_events = 0;
4970 phba->hba_flag |= HBA_NEEDS_CFG_PORT;
4972 phba->pport->fc_myDID = 0;
4973 phba->pport->fc_prevDID = 0;
4976 /* Turn off parity checking and serr during the physical reset */
4977 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value))
4980 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4982 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4984 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4986 /* Now toggle INITFF bit in the Host Control Register */
4987 writel(HC_INITFF, phba->HCregaddr);
4989 readl(phba->HCregaddr); /* flush */
4990 writel(0, phba->HCregaddr);
4991 readl(phba->HCregaddr); /* flush */
4993 /* Restore PCI cmd register */
4994 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4996 /* Initialize relevant SLI info */
4997 for (i = 0; i < psli->num_rings; i++) {
4998 pring = &psli->sli3_ring[i];
5000 pring->sli.sli3.rspidx = 0;
5001 pring->sli.sli3.next_cmdidx = 0;
5002 pring->sli.sli3.local_getidx = 0;
5003 pring->sli.sli3.cmdidx = 0;
5004 pring->missbufcnt = 0;
5007 phba->link_state = LPFC_WARM_START;
5012 * lpfc_sli4_brdreset - Reset a sli-4 HBA
5013 * @phba: Pointer to HBA context object.
5015 * This function resets a SLI4 HBA. This function disables PCI layer parity
5016 * checking during resets the device. The caller is not required to hold
5019 * This function returns 0 on success else returns negative error code.
5022 lpfc_sli4_brdreset(struct lpfc_hba *phba)
5024 struct lpfc_sli *psli = &phba->sli;
5029 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5030 "0295 Reset HBA Data: x%x x%x x%x\n",
5031 phba->pport->port_state, psli->sli_flag,
5034 /* perform board reset */
5035 phba->fc_eventTag = 0;
5036 phba->link_events = 0;
5037 phba->pport->fc_myDID = 0;
5038 phba->pport->fc_prevDID = 0;
5039 phba->hba_flag &= ~HBA_SETUP;
5041 spin_lock_irq(&phba->hbalock);
5042 psli->sli_flag &= ~(LPFC_PROCESS_LA);
5043 phba->fcf.fcf_flag = 0;
5044 spin_unlock_irq(&phba->hbalock);
5046 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
5047 if (phba->hba_flag & HBA_FW_DUMP_OP) {
5048 phba->hba_flag &= ~HBA_FW_DUMP_OP;
5052 /* Now physically reset the device */
5053 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5054 "0389 Performing PCI function reset!\n");
5056 /* Turn off parity checking and serr during the physical reset */
5057 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value)) {
5058 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5059 "3205 PCI read Config failed\n");
5063 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
5064 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
5066 /* Perform FCoE PCI function reset before freeing queue memory */
5067 rc = lpfc_pci_function_reset(phba);
5069 /* Restore PCI cmd register */
5070 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
5076 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
5077 * @phba: Pointer to HBA context object.
5079 * This function is called in the SLI initialization code path to
5080 * restart the HBA. The caller is not required to hold any lock.
5081 * This function writes MBX_RESTART mailbox command to the SLIM and
5082 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
5083 * function to free any pending commands. The function enables
5084 * POST only during the first initialization. The function returns zero.
5085 * The function does not guarantee completion of MBX_RESTART mailbox
5086 * command before the return of this function.
5089 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
5092 struct lpfc_sli *psli;
5093 volatile uint32_t word0;
5094 void __iomem *to_slim;
5095 uint32_t hba_aer_enabled;
5097 spin_lock_irq(&phba->hbalock);
5099 /* Take PCIe device Advanced Error Reporting (AER) state */
5100 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
5105 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5106 "0337 Restart HBA Data: x%x x%x\n",
5107 (phba->pport) ? phba->pport->port_state : 0,
5111 mb = (MAILBOX_t *) &word0;
5112 mb->mbxCommand = MBX_RESTART;
5115 lpfc_reset_barrier(phba);
5117 to_slim = phba->MBslimaddr;
5118 writel(*(uint32_t *) mb, to_slim);
5119 readl(to_slim); /* flush */
5121 /* Only skip post after fc_ffinit is completed */
5122 if (phba->pport && phba->pport->port_state)
5123 word0 = 1; /* This is really setting up word1 */
5125 word0 = 0; /* This is really setting up word1 */
5126 to_slim = phba->MBslimaddr + sizeof (uint32_t);
5127 writel(*(uint32_t *) mb, to_slim);
5128 readl(to_slim); /* flush */
5130 lpfc_sli_brdreset(phba);
5132 phba->pport->stopped = 0;
5133 phba->link_state = LPFC_INIT_START;
5135 spin_unlock_irq(&phba->hbalock);
5137 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
5138 psli->stats_start = ktime_get_seconds();
5140 /* Give the INITFF and Post time to settle. */
5143 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
5144 if (hba_aer_enabled)
5145 pci_disable_pcie_error_reporting(phba->pcidev);
5147 lpfc_hba_down_post(phba);
5153 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
5154 * @phba: Pointer to HBA context object.
5156 * This function is called in the SLI initialization code path to restart
5157 * a SLI4 HBA. The caller is not required to hold any lock.
5158 * At the end of the function, it calls lpfc_hba_down_post function to
5159 * free any pending commands.
5162 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
5164 struct lpfc_sli *psli = &phba->sli;
5165 uint32_t hba_aer_enabled;
5169 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5170 "0296 Restart HBA Data: x%x x%x\n",
5171 phba->pport->port_state, psli->sli_flag);
5173 /* Take PCIe device Advanced Error Reporting (AER) state */
5174 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
5176 rc = lpfc_sli4_brdreset(phba);
5178 phba->link_state = LPFC_HBA_ERROR;
5179 goto hba_down_queue;
5182 spin_lock_irq(&phba->hbalock);
5183 phba->pport->stopped = 0;
5184 phba->link_state = LPFC_INIT_START;
5186 spin_unlock_irq(&phba->hbalock);
5188 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
5189 psli->stats_start = ktime_get_seconds();
5191 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
5192 if (hba_aer_enabled)
5193 pci_disable_pcie_error_reporting(phba->pcidev);
5196 lpfc_hba_down_post(phba);
5197 lpfc_sli4_queue_destroy(phba);
5203 * lpfc_sli_brdrestart - Wrapper func for restarting hba
5204 * @phba: Pointer to HBA context object.
5206 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
5207 * API jump table function pointer from the lpfc_hba struct.
5210 lpfc_sli_brdrestart(struct lpfc_hba *phba)
5212 return phba->lpfc_sli_brdrestart(phba);
5216 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
5217 * @phba: Pointer to HBA context object.
5219 * This function is called after a HBA restart to wait for successful
5220 * restart of the HBA. Successful restart of the HBA is indicated by
5221 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
5222 * iteration, the function will restart the HBA again. The function returns
5223 * zero if HBA successfully restarted else returns negative error code.
5226 lpfc_sli_chipset_init(struct lpfc_hba *phba)
5228 uint32_t status, i = 0;
5230 /* Read the HBA Host Status Register */
5231 if (lpfc_readl(phba->HSregaddr, &status))
5234 /* Check status register to see what current state is */
5236 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
5238 /* Check every 10ms for 10 retries, then every 100ms for 90
5239 * retries, then every 1 sec for 50 retires for a total of
5240 * ~60 seconds before reset the board again and check every
5241 * 1 sec for 50 retries. The up to 60 seconds before the
5242 * board ready is required by the Falcon FIPS zeroization
5243 * complete, and any reset the board in between shall cause
5244 * restart of zeroization, further delay the board ready.
5247 /* Adapter failed to init, timeout, status reg
5249 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5250 "0436 Adapter failed to init, "
5251 "timeout, status reg x%x, "
5252 "FW Data: A8 x%x AC x%x\n", status,
5253 readl(phba->MBslimaddr + 0xa8),
5254 readl(phba->MBslimaddr + 0xac));
5255 phba->link_state = LPFC_HBA_ERROR;
5259 /* Check to see if any errors occurred during init */
5260 if (status & HS_FFERM) {
5261 /* ERROR: During chipset initialization */
5262 /* Adapter failed to init, chipset, status reg
5264 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5265 "0437 Adapter failed to init, "
5266 "chipset, status reg x%x, "
5267 "FW Data: A8 x%x AC x%x\n", status,
5268 readl(phba->MBslimaddr + 0xa8),
5269 readl(phba->MBslimaddr + 0xac));
5270 phba->link_state = LPFC_HBA_ERROR;
5283 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
5284 lpfc_sli_brdrestart(phba);
5286 /* Read the HBA Host Status Register */
5287 if (lpfc_readl(phba->HSregaddr, &status))
5291 /* Check to see if any errors occurred during init */
5292 if (status & HS_FFERM) {
5293 /* ERROR: During chipset initialization */
5294 /* Adapter failed to init, chipset, status reg <status> */
5295 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5296 "0438 Adapter failed to init, chipset, "
5298 "FW Data: A8 x%x AC x%x\n", status,
5299 readl(phba->MBslimaddr + 0xa8),
5300 readl(phba->MBslimaddr + 0xac));
5301 phba->link_state = LPFC_HBA_ERROR;
5305 phba->hba_flag |= HBA_NEEDS_CFG_PORT;
5307 /* Clear all interrupt enable conditions */
5308 writel(0, phba->HCregaddr);
5309 readl(phba->HCregaddr); /* flush */
5311 /* setup host attn register */
5312 writel(0xffffffff, phba->HAregaddr);
5313 readl(phba->HAregaddr); /* flush */
5318 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
5320 * This function calculates and returns the number of HBQs required to be
5324 lpfc_sli_hbq_count(void)
5326 return ARRAY_SIZE(lpfc_hbq_defs);
5330 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
5332 * This function adds the number of hbq entries in every HBQ to get
5333 * the total number of hbq entries required for the HBA and returns
5337 lpfc_sli_hbq_entry_count(void)
5339 int hbq_count = lpfc_sli_hbq_count();
5343 for (i = 0; i < hbq_count; ++i)
5344 count += lpfc_hbq_defs[i]->entry_count;
5349 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
5351 * This function calculates amount of memory required for all hbq entries
5352 * to be configured and returns the total memory required.
5355 lpfc_sli_hbq_size(void)
5357 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
5361 * lpfc_sli_hbq_setup - configure and initialize HBQs
5362 * @phba: Pointer to HBA context object.
5364 * This function is called during the SLI initialization to configure
5365 * all the HBQs and post buffers to the HBQ. The caller is not
5366 * required to hold any locks. This function will return zero if successful
5367 * else it will return negative error code.
5370 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
5372 int hbq_count = lpfc_sli_hbq_count();
5376 uint32_t hbq_entry_index;
5378 /* Get a Mailbox buffer to setup mailbox
5379 * commands for HBA initialization
5381 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5388 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
5389 phba->link_state = LPFC_INIT_MBX_CMDS;
5390 phba->hbq_in_use = 1;
5392 hbq_entry_index = 0;
5393 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
5394 phba->hbqs[hbqno].next_hbqPutIdx = 0;
5395 phba->hbqs[hbqno].hbqPutIdx = 0;
5396 phba->hbqs[hbqno].local_hbqGetIdx = 0;
5397 phba->hbqs[hbqno].entry_count =
5398 lpfc_hbq_defs[hbqno]->entry_count;
5399 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
5400 hbq_entry_index, pmb);
5401 hbq_entry_index += phba->hbqs[hbqno].entry_count;
5403 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
5404 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
5405 mbxStatus <status>, ring <num> */
5407 lpfc_printf_log(phba, KERN_ERR,
5408 LOG_SLI | LOG_VPORT,
5409 "1805 Adapter failed to init. "
5410 "Data: x%x x%x x%x\n",
5412 pmbox->mbxStatus, hbqno);
5414 phba->link_state = LPFC_HBA_ERROR;
5415 mempool_free(pmb, phba->mbox_mem_pool);
5419 phba->hbq_count = hbq_count;
5421 mempool_free(pmb, phba->mbox_mem_pool);
5423 /* Initially populate or replenish the HBQs */
5424 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
5425 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
5430 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
5431 * @phba: Pointer to HBA context object.
5433 * This function is called during the SLI initialization to configure
5434 * all the HBQs and post buffers to the HBQ. The caller is not
5435 * required to hold any locks. This function will return zero if successful
5436 * else it will return negative error code.
5439 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
5441 phba->hbq_in_use = 1;
5443 * Specific case when the MDS diagnostics is enabled and supported.
5444 * The receive buffer count is truncated to manage the incoming
5447 if (phba->cfg_enable_mds_diags && phba->mds_diags_support)
5448 phba->hbqs[LPFC_ELS_HBQ].entry_count =
5449 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count >> 1;
5451 phba->hbqs[LPFC_ELS_HBQ].entry_count =
5452 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
5453 phba->hbq_count = 1;
5454 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
5455 /* Initially populate or replenish the HBQs */
5460 * lpfc_sli_config_port - Issue config port mailbox command
5461 * @phba: Pointer to HBA context object.
5462 * @sli_mode: sli mode - 2/3
5464 * This function is called by the sli initialization code path
5465 * to issue config_port mailbox command. This function restarts the
5466 * HBA firmware and issues a config_port mailbox command to configure
5467 * the SLI interface in the sli mode specified by sli_mode
5468 * variable. The caller is not required to hold any locks.
5469 * The function returns 0 if successful, else returns negative error
5473 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
5476 uint32_t resetcount = 0, rc = 0, done = 0;
5478 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5480 phba->link_state = LPFC_HBA_ERROR;
5484 phba->sli_rev = sli_mode;
5485 while (resetcount < 2 && !done) {
5486 spin_lock_irq(&phba->hbalock);
5487 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5488 spin_unlock_irq(&phba->hbalock);
5489 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
5490 lpfc_sli_brdrestart(phba);
5491 rc = lpfc_sli_chipset_init(phba);
5495 spin_lock_irq(&phba->hbalock);
5496 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5497 spin_unlock_irq(&phba->hbalock);
5500 /* Call pre CONFIG_PORT mailbox command initialization. A
5501 * value of 0 means the call was successful. Any other
5502 * nonzero value is a failure, but if ERESTART is returned,
5503 * the driver may reset the HBA and try again.
5505 rc = lpfc_config_port_prep(phba);
5506 if (rc == -ERESTART) {
5507 phba->link_state = LPFC_LINK_UNKNOWN;
5512 phba->link_state = LPFC_INIT_MBX_CMDS;
5513 lpfc_config_port(phba, pmb);
5514 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5515 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
5516 LPFC_SLI3_HBQ_ENABLED |
5517 LPFC_SLI3_CRP_ENABLED |
5518 LPFC_SLI3_DSS_ENABLED);
5519 if (rc != MBX_SUCCESS) {
5520 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5521 "0442 Adapter failed to init, mbxCmd x%x "
5522 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
5523 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
5524 spin_lock_irq(&phba->hbalock);
5525 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
5526 spin_unlock_irq(&phba->hbalock);
5529 /* Allow asynchronous mailbox command to go through */
5530 spin_lock_irq(&phba->hbalock);
5531 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5532 spin_unlock_irq(&phba->hbalock);
5535 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
5536 (pmb->u.mb.un.varCfgPort.gasabt == 0))
5537 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5538 "3110 Port did not grant ASABT\n");
5543 goto do_prep_failed;
5545 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
5546 if (!pmb->u.mb.un.varCfgPort.cMA) {
5548 goto do_prep_failed;
5550 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
5551 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
5552 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
5553 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
5554 phba->max_vpi : phba->max_vports;
5558 if (pmb->u.mb.un.varCfgPort.gerbm)
5559 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
5560 if (pmb->u.mb.un.varCfgPort.gcrp)
5561 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
5563 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
5564 phba->port_gp = phba->mbox->us.s3_pgp.port;
5566 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5567 if (pmb->u.mb.un.varCfgPort.gbg == 0) {
5568 phba->cfg_enable_bg = 0;
5569 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
5570 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5571 "0443 Adapter did not grant "
5576 phba->hbq_get = NULL;
5577 phba->port_gp = phba->mbox->us.s2.port;
5581 mempool_free(pmb, phba->mbox_mem_pool);
5587 * lpfc_sli_hba_setup - SLI initialization function
5588 * @phba: Pointer to HBA context object.
5590 * This function is the main SLI initialization function. This function
5591 * is called by the HBA initialization code, HBA reset code and HBA
5592 * error attention handler code. Caller is not required to hold any
5593 * locks. This function issues config_port mailbox command to configure
5594 * the SLI, setup iocb rings and HBQ rings. In the end the function
5595 * calls the config_port_post function to issue init_link mailbox
5596 * command and to start the discovery. The function will return zero
5597 * if successful, else it will return negative error code.
5600 lpfc_sli_hba_setup(struct lpfc_hba *phba)
5606 /* Enable ISR already does config_port because of config_msi mbx */
5607 if (phba->hba_flag & HBA_NEEDS_CFG_PORT) {
5608 rc = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
5611 phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
5613 phba->fcp_embed_io = 0; /* SLI4 FC support only */
5615 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
5616 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
5617 rc = pci_enable_pcie_error_reporting(phba->pcidev);
5619 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5620 "2709 This device supports "
5621 "Advanced Error Reporting (AER)\n");
5622 spin_lock_irq(&phba->hbalock);
5623 phba->hba_flag |= HBA_AER_ENABLED;
5624 spin_unlock_irq(&phba->hbalock);
5626 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5627 "2708 This device does not support "
5628 "Advanced Error Reporting (AER): %d\n",
5630 phba->cfg_aer_support = 0;
5634 if (phba->sli_rev == 3) {
5635 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
5636 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
5638 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
5639 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
5640 phba->sli3_options = 0;
5643 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5644 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
5645 phba->sli_rev, phba->max_vpi);
5646 rc = lpfc_sli_ring_map(phba);
5649 goto lpfc_sli_hba_setup_error;
5651 /* Initialize VPIs. */
5652 if (phba->sli_rev == LPFC_SLI_REV3) {
5654 * The VPI bitmask and physical ID array are allocated
5655 * and initialized once only - at driver load. A port
5656 * reset doesn't need to reinitialize this memory.
5658 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
5659 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
5660 phba->vpi_bmask = kcalloc(longs,
5661 sizeof(unsigned long),
5663 if (!phba->vpi_bmask) {
5665 goto lpfc_sli_hba_setup_error;
5668 phba->vpi_ids = kcalloc(phba->max_vpi + 1,
5671 if (!phba->vpi_ids) {
5672 kfree(phba->vpi_bmask);
5674 goto lpfc_sli_hba_setup_error;
5676 for (i = 0; i < phba->max_vpi; i++)
5677 phba->vpi_ids[i] = i;
5682 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
5683 rc = lpfc_sli_hbq_setup(phba);
5685 goto lpfc_sli_hba_setup_error;
5687 spin_lock_irq(&phba->hbalock);
5688 phba->sli.sli_flag |= LPFC_PROCESS_LA;
5689 spin_unlock_irq(&phba->hbalock);
5691 rc = lpfc_config_port_post(phba);
5693 goto lpfc_sli_hba_setup_error;
5697 lpfc_sli_hba_setup_error:
5698 phba->link_state = LPFC_HBA_ERROR;
5699 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5700 "0445 Firmware initialization failed\n");
5705 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
5706 * @phba: Pointer to HBA context object.
5708 * This function issue a dump mailbox command to read config region
5709 * 23 and parse the records in the region and populate driver
5713 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
5715 LPFC_MBOXQ_t *mboxq;
5716 struct lpfc_dmabuf *mp;
5717 struct lpfc_mqe *mqe;
5718 uint32_t data_length;
5721 /* Program the default value of vlan_id and fc_map */
5722 phba->valid_vlan = 0;
5723 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5724 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5725 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5727 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5731 mqe = &mboxq->u.mqe;
5732 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5734 goto out_free_mboxq;
5737 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
5738 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5740 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5741 "(%d):2571 Mailbox cmd x%x Status x%x "
5742 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5743 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5744 "CQ: x%x x%x x%x x%x\n",
5745 mboxq->vport ? mboxq->vport->vpi : 0,
5746 bf_get(lpfc_mqe_command, mqe),
5747 bf_get(lpfc_mqe_status, mqe),
5748 mqe->un.mb_words[0], mqe->un.mb_words[1],
5749 mqe->un.mb_words[2], mqe->un.mb_words[3],
5750 mqe->un.mb_words[4], mqe->un.mb_words[5],
5751 mqe->un.mb_words[6], mqe->un.mb_words[7],
5752 mqe->un.mb_words[8], mqe->un.mb_words[9],
5753 mqe->un.mb_words[10], mqe->un.mb_words[11],
5754 mqe->un.mb_words[12], mqe->un.mb_words[13],
5755 mqe->un.mb_words[14], mqe->un.mb_words[15],
5756 mqe->un.mb_words[16], mqe->un.mb_words[50],
5758 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5759 mboxq->mcqe.trailer);
5762 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5765 goto out_free_mboxq;
5767 data_length = mqe->un.mb_words[5];
5768 if (data_length > DMP_RGN23_SIZE) {
5769 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5772 goto out_free_mboxq;
5775 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5776 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5781 mempool_free(mboxq, phba->mbox_mem_pool);
5786 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5787 * @phba: pointer to lpfc hba data structure.
5788 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5789 * @vpd: pointer to the memory to hold resulting port vpd data.
5790 * @vpd_size: On input, the number of bytes allocated to @vpd.
5791 * On output, the number of data bytes in @vpd.
5793 * This routine executes a READ_REV SLI4 mailbox command. In
5794 * addition, this routine gets the port vpd data.
5798 * -ENOMEM - could not allocated memory.
5801 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5802 uint8_t *vpd, uint32_t *vpd_size)
5806 struct lpfc_dmabuf *dmabuf;
5807 struct lpfc_mqe *mqe;
5809 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5814 * Get a DMA buffer for the vpd data resulting from the READ_REV
5817 dma_size = *vpd_size;
5818 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, dma_size,
5819 &dmabuf->phys, GFP_KERNEL);
5820 if (!dmabuf->virt) {
5826 * The SLI4 implementation of READ_REV conflicts at word1,
5827 * bits 31:16 and SLI4 adds vpd functionality not present
5828 * in SLI3. This code corrects the conflicts.
5830 lpfc_read_rev(phba, mboxq);
5831 mqe = &mboxq->u.mqe;
5832 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5833 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5834 mqe->un.read_rev.word1 &= 0x0000FFFF;
5835 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5836 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5838 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5840 dma_free_coherent(&phba->pcidev->dev, dma_size,
5841 dmabuf->virt, dmabuf->phys);
5847 * The available vpd length cannot be bigger than the
5848 * DMA buffer passed to the port. Catch the less than
5849 * case and update the caller's size.
5851 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5852 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5854 memcpy(vpd, dmabuf->virt, *vpd_size);
5856 dma_free_coherent(&phba->pcidev->dev, dma_size,
5857 dmabuf->virt, dmabuf->phys);
5863 * lpfc_sli4_get_ctl_attr - Retrieve SLI4 device controller attributes
5864 * @phba: pointer to lpfc hba data structure.
5866 * This routine retrieves SLI4 device physical port name this PCI function
5871 * otherwise - failed to retrieve controller attributes
5874 lpfc_sli4_get_ctl_attr(struct lpfc_hba *phba)
5876 LPFC_MBOXQ_t *mboxq;
5877 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5878 struct lpfc_controller_attribute *cntl_attr;
5879 void *virtaddr = NULL;
5880 uint32_t alloclen, reqlen;
5881 uint32_t shdr_status, shdr_add_status;
5882 union lpfc_sli4_cfg_shdr *shdr;
5885 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5889 /* Send COMMON_GET_CNTL_ATTRIBUTES mbox cmd */
5890 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5891 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5892 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5893 LPFC_SLI4_MBX_NEMBED);
5895 if (alloclen < reqlen) {
5896 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5897 "3084 Allocated DMA memory size (%d) is "
5898 "less than the requested DMA memory size "
5899 "(%d)\n", alloclen, reqlen);
5901 goto out_free_mboxq;
5903 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5904 virtaddr = mboxq->sge_array->addr[0];
5905 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5906 shdr = &mbx_cntl_attr->cfg_shdr;
5907 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5908 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5909 if (shdr_status || shdr_add_status || rc) {
5910 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5911 "3085 Mailbox x%x (x%x/x%x) failed, "
5912 "rc:x%x, status:x%x, add_status:x%x\n",
5913 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5914 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5915 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5916 rc, shdr_status, shdr_add_status);
5918 goto out_free_mboxq;
5921 cntl_attr = &mbx_cntl_attr->cntl_attr;
5922 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5923 phba->sli4_hba.lnk_info.lnk_tp =
5924 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5925 phba->sli4_hba.lnk_info.lnk_no =
5926 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5927 phba->sli4_hba.flash_id = bf_get(lpfc_cntl_attr_flash_id, cntl_attr);
5928 phba->sli4_hba.asic_rev = bf_get(lpfc_cntl_attr_asic_rev, cntl_attr);
5930 memset(phba->BIOSVersion, 0, sizeof(phba->BIOSVersion));
5931 strlcat(phba->BIOSVersion, (char *)cntl_attr->bios_ver_str,
5932 sizeof(phba->BIOSVersion));
5934 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5935 "3086 lnk_type:%d, lnk_numb:%d, bios_ver:%s, "
5936 "flash_id: x%02x, asic_rev: x%02x\n",
5937 phba->sli4_hba.lnk_info.lnk_tp,
5938 phba->sli4_hba.lnk_info.lnk_no,
5939 phba->BIOSVersion, phba->sli4_hba.flash_id,
5940 phba->sli4_hba.asic_rev);
5942 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5943 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5945 mempool_free(mboxq, phba->mbox_mem_pool);
5950 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5951 * @phba: pointer to lpfc hba data structure.
5953 * This routine retrieves SLI4 device physical port name this PCI function
5958 * otherwise - failed to retrieve physical port name
5961 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5963 LPFC_MBOXQ_t *mboxq;
5964 struct lpfc_mbx_get_port_name *get_port_name;
5965 uint32_t shdr_status, shdr_add_status;
5966 union lpfc_sli4_cfg_shdr *shdr;
5967 char cport_name = 0;
5970 /* We assume nothing at this point */
5971 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5972 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5974 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5977 /* obtain link type and link number via READ_CONFIG */
5978 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5979 lpfc_sli4_read_config(phba);
5980 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5981 goto retrieve_ppname;
5983 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5984 rc = lpfc_sli4_get_ctl_attr(phba);
5986 goto out_free_mboxq;
5989 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5990 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5991 sizeof(struct lpfc_mbx_get_port_name) -
5992 sizeof(struct lpfc_sli4_cfg_mhdr),
5993 LPFC_SLI4_MBX_EMBED);
5994 get_port_name = &mboxq->u.mqe.un.get_port_name;
5995 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5996 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5997 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5998 phba->sli4_hba.lnk_info.lnk_tp);
5999 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6000 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6001 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6002 if (shdr_status || shdr_add_status || rc) {
6003 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6004 "3087 Mailbox x%x (x%x/x%x) failed: "
6005 "rc:x%x, status:x%x, add_status:x%x\n",
6006 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6007 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
6008 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
6009 rc, shdr_status, shdr_add_status);
6011 goto out_free_mboxq;
6013 switch (phba->sli4_hba.lnk_info.lnk_no) {
6014 case LPFC_LINK_NUMBER_0:
6015 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
6016 &get_port_name->u.response);
6017 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
6019 case LPFC_LINK_NUMBER_1:
6020 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
6021 &get_port_name->u.response);
6022 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
6024 case LPFC_LINK_NUMBER_2:
6025 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
6026 &get_port_name->u.response);
6027 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
6029 case LPFC_LINK_NUMBER_3:
6030 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
6031 &get_port_name->u.response);
6032 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
6038 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
6039 phba->Port[0] = cport_name;
6040 phba->Port[1] = '\0';
6041 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6042 "3091 SLI get port name: %s\n", phba->Port);
6046 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
6047 lpfc_sli4_mbox_cmd_free(phba, mboxq);
6049 mempool_free(mboxq, phba->mbox_mem_pool);
6054 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
6055 * @phba: pointer to lpfc hba data structure.
6057 * This routine is called to explicitly arm the SLI4 device's completion and
6061 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
6064 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
6065 struct lpfc_sli4_hdw_queue *qp;
6066 struct lpfc_queue *eq;
6068 sli4_hba->sli4_write_cq_db(phba, sli4_hba->mbx_cq, 0, LPFC_QUEUE_REARM);
6069 sli4_hba->sli4_write_cq_db(phba, sli4_hba->els_cq, 0, LPFC_QUEUE_REARM);
6070 if (sli4_hba->nvmels_cq)
6071 sli4_hba->sli4_write_cq_db(phba, sli4_hba->nvmels_cq, 0,
6074 if (sli4_hba->hdwq) {
6075 /* Loop thru all Hardware Queues */
6076 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
6077 qp = &sli4_hba->hdwq[qidx];
6078 /* ARM the corresponding CQ */
6079 sli4_hba->sli4_write_cq_db(phba, qp->io_cq, 0,
6083 /* Loop thru all IRQ vectors */
6084 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
6085 eq = sli4_hba->hba_eq_hdl[qidx].eq;
6086 /* ARM the corresponding EQ */
6087 sli4_hba->sli4_write_eq_db(phba, eq,
6088 0, LPFC_QUEUE_REARM);
6092 if (phba->nvmet_support) {
6093 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
6094 sli4_hba->sli4_write_cq_db(phba,
6095 sli4_hba->nvmet_cqset[qidx], 0,
6102 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
6103 * @phba: Pointer to HBA context object.
6104 * @type: The resource extent type.
6105 * @extnt_count: buffer to hold port available extent count.
6106 * @extnt_size: buffer to hold element count per extent.
6108 * This function calls the port and retrievs the number of available
6109 * extents and their size for a particular extent type.
6111 * Returns: 0 if successful. Nonzero otherwise.
6114 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
6115 uint16_t *extnt_count, uint16_t *extnt_size)
6120 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
6123 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6127 /* Find out how many extents are available for this resource type */
6128 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
6129 sizeof(struct lpfc_sli4_cfg_mhdr));
6130 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6131 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
6132 length, LPFC_SLI4_MBX_EMBED);
6134 /* Send an extents count of 0 - the GET doesn't use it. */
6135 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6136 LPFC_SLI4_MBX_EMBED);
6142 if (!phba->sli4_hba.intr_enable)
6143 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6145 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6146 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6153 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
6154 if (bf_get(lpfc_mbox_hdr_status,
6155 &rsrc_info->header.cfg_shdr.response)) {
6156 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6157 "2930 Failed to get resource extents "
6158 "Status 0x%x Add'l Status 0x%x\n",
6159 bf_get(lpfc_mbox_hdr_status,
6160 &rsrc_info->header.cfg_shdr.response),
6161 bf_get(lpfc_mbox_hdr_add_status,
6162 &rsrc_info->header.cfg_shdr.response));
6167 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
6169 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
6172 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6173 "3162 Retrieved extents type-%d from port: count:%d, "
6174 "size:%d\n", type, *extnt_count, *extnt_size);
6177 mempool_free(mbox, phba->mbox_mem_pool);
6182 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
6183 * @phba: Pointer to HBA context object.
6184 * @type: The extent type to check.
6186 * This function reads the current available extents from the port and checks
6187 * if the extent count or extent size has changed since the last access.
6188 * Callers use this routine post port reset to understand if there is a
6189 * extent reprovisioning requirement.
6192 * -Error: error indicates problem.
6193 * 1: Extent count or size has changed.
6197 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
6199 uint16_t curr_ext_cnt, rsrc_ext_cnt;
6200 uint16_t size_diff, rsrc_ext_size;
6202 struct lpfc_rsrc_blks *rsrc_entry;
6203 struct list_head *rsrc_blk_list = NULL;
6207 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
6214 case LPFC_RSC_TYPE_FCOE_RPI:
6215 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
6217 case LPFC_RSC_TYPE_FCOE_VPI:
6218 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
6220 case LPFC_RSC_TYPE_FCOE_XRI:
6221 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
6223 case LPFC_RSC_TYPE_FCOE_VFI:
6224 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
6230 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
6232 if (rsrc_entry->rsrc_size != rsrc_ext_size)
6236 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
6243 * lpfc_sli4_cfg_post_extnts -
6244 * @phba: Pointer to HBA context object.
6245 * @extnt_cnt: number of available extents.
6246 * @type: the extent type (rpi, xri, vfi, vpi).
6247 * @emb: buffer to hold either MBX_EMBED or MBX_NEMBED operation.
6248 * @mbox: pointer to the caller's allocated mailbox structure.
6250 * This function executes the extents allocation request. It also
6251 * takes care of the amount of memory needed to allocate or get the
6252 * allocated extents. It is the caller's responsibility to evaluate
6256 * -Error: Error value describes the condition found.
6260 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
6261 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
6266 uint32_t alloc_len, mbox_tmo;
6268 /* Calculate the total requested length of the dma memory */
6269 req_len = extnt_cnt * sizeof(uint16_t);
6272 * Calculate the size of an embedded mailbox. The uint32_t
6273 * accounts for extents-specific word.
6275 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6279 * Presume the allocation and response will fit into an embedded
6280 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6282 *emb = LPFC_SLI4_MBX_EMBED;
6283 if (req_len > emb_len) {
6284 req_len = extnt_cnt * sizeof(uint16_t) +
6285 sizeof(union lpfc_sli4_cfg_shdr) +
6287 *emb = LPFC_SLI4_MBX_NEMBED;
6290 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6291 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
6293 if (alloc_len < req_len) {
6294 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6295 "2982 Allocated DMA memory size (x%x) is "
6296 "less than the requested DMA memory "
6297 "size (x%x)\n", alloc_len, req_len);
6300 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
6304 if (!phba->sli4_hba.intr_enable)
6305 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6307 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6308 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6317 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
6318 * @phba: Pointer to HBA context object.
6319 * @type: The resource extent type to allocate.
6321 * This function allocates the number of elements for the specified
6325 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
6328 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
6329 uint16_t rsrc_id, rsrc_start, j, k;
6332 unsigned long longs;
6333 unsigned long *bmask;
6334 struct lpfc_rsrc_blks *rsrc_blks;
6337 struct lpfc_id_range *id_array = NULL;
6338 void *virtaddr = NULL;
6339 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6340 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6341 struct list_head *ext_blk_list;
6343 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
6349 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
6350 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6351 "3009 No available Resource Extents "
6352 "for resource type 0x%x: Count: 0x%x, "
6353 "Size 0x%x\n", type, rsrc_cnt,
6358 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
6359 "2903 Post resource extents type-0x%x: "
6360 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
6362 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6366 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
6373 * Figure out where the response is located. Then get local pointers
6374 * to the response data. The port does not guarantee to respond to
6375 * all extents counts request so update the local variable with the
6376 * allocated count from the port.
6378 if (emb == LPFC_SLI4_MBX_EMBED) {
6379 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6380 id_array = &rsrc_ext->u.rsp.id[0];
6381 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6383 virtaddr = mbox->sge_array->addr[0];
6384 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6385 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6386 id_array = &n_rsrc->id;
6389 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
6390 rsrc_id_cnt = rsrc_cnt * rsrc_size;
6393 * Based on the resource size and count, correct the base and max
6396 length = sizeof(struct lpfc_rsrc_blks);
6398 case LPFC_RSC_TYPE_FCOE_RPI:
6399 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6400 sizeof(unsigned long),
6402 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6406 phba->sli4_hba.rpi_ids = kcalloc(rsrc_id_cnt,
6409 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6410 kfree(phba->sli4_hba.rpi_bmask);
6416 * The next_rpi was initialized with the maximum available
6417 * count but the port may allocate a smaller number. Catch
6418 * that case and update the next_rpi.
6420 phba->sli4_hba.next_rpi = rsrc_id_cnt;
6422 /* Initialize local ptrs for common extent processing later. */
6423 bmask = phba->sli4_hba.rpi_bmask;
6424 ids = phba->sli4_hba.rpi_ids;
6425 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
6427 case LPFC_RSC_TYPE_FCOE_VPI:
6428 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6430 if (unlikely(!phba->vpi_bmask)) {
6434 phba->vpi_ids = kcalloc(rsrc_id_cnt, sizeof(uint16_t),
6436 if (unlikely(!phba->vpi_ids)) {
6437 kfree(phba->vpi_bmask);
6442 /* Initialize local ptrs for common extent processing later. */
6443 bmask = phba->vpi_bmask;
6444 ids = phba->vpi_ids;
6445 ext_blk_list = &phba->lpfc_vpi_blk_list;
6447 case LPFC_RSC_TYPE_FCOE_XRI:
6448 phba->sli4_hba.xri_bmask = kcalloc(longs,
6449 sizeof(unsigned long),
6451 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6455 phba->sli4_hba.max_cfg_param.xri_used = 0;
6456 phba->sli4_hba.xri_ids = kcalloc(rsrc_id_cnt,
6459 if (unlikely(!phba->sli4_hba.xri_ids)) {
6460 kfree(phba->sli4_hba.xri_bmask);
6465 /* Initialize local ptrs for common extent processing later. */
6466 bmask = phba->sli4_hba.xri_bmask;
6467 ids = phba->sli4_hba.xri_ids;
6468 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
6470 case LPFC_RSC_TYPE_FCOE_VFI:
6471 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6472 sizeof(unsigned long),
6474 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6478 phba->sli4_hba.vfi_ids = kcalloc(rsrc_id_cnt,
6481 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6482 kfree(phba->sli4_hba.vfi_bmask);
6487 /* Initialize local ptrs for common extent processing later. */
6488 bmask = phba->sli4_hba.vfi_bmask;
6489 ids = phba->sli4_hba.vfi_ids;
6490 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
6493 /* Unsupported Opcode. Fail call. */
6497 ext_blk_list = NULL;
6502 * Complete initializing the extent configuration with the
6503 * allocated ids assigned to this function. The bitmask serves
6504 * as an index into the array and manages the available ids. The
6505 * array just stores the ids communicated to the port via the wqes.
6507 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
6509 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
6512 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
6515 rsrc_blks = kzalloc(length, GFP_KERNEL);
6516 if (unlikely(!rsrc_blks)) {
6522 rsrc_blks->rsrc_start = rsrc_id;
6523 rsrc_blks->rsrc_size = rsrc_size;
6524 list_add_tail(&rsrc_blks->list, ext_blk_list);
6525 rsrc_start = rsrc_id;
6526 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
6527 phba->sli4_hba.io_xri_start = rsrc_start +
6528 lpfc_sli4_get_iocb_cnt(phba);
6531 while (rsrc_id < (rsrc_start + rsrc_size)) {
6536 /* Entire word processed. Get next word.*/
6541 lpfc_sli4_mbox_cmd_free(phba, mbox);
6548 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
6549 * @phba: Pointer to HBA context object.
6550 * @type: the extent's type.
6552 * This function deallocates all extents of a particular resource type.
6553 * SLI4 does not allow for deallocating a particular extent range. It
6554 * is the caller's responsibility to release all kernel memory resources.
6557 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
6560 uint32_t length, mbox_tmo = 0;
6562 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
6563 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
6565 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6570 * This function sends an embedded mailbox because it only sends the
6571 * the resource type. All extents of this type are released by the
6574 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
6575 sizeof(struct lpfc_sli4_cfg_mhdr));
6576 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6577 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
6578 length, LPFC_SLI4_MBX_EMBED);
6580 /* Send an extents count of 0 - the dealloc doesn't use it. */
6581 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6582 LPFC_SLI4_MBX_EMBED);
6587 if (!phba->sli4_hba.intr_enable)
6588 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6590 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6591 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6598 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
6599 if (bf_get(lpfc_mbox_hdr_status,
6600 &dealloc_rsrc->header.cfg_shdr.response)) {
6601 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6602 "2919 Failed to release resource extents "
6603 "for type %d - Status 0x%x Add'l Status 0x%x. "
6604 "Resource memory not released.\n",
6606 bf_get(lpfc_mbox_hdr_status,
6607 &dealloc_rsrc->header.cfg_shdr.response),
6608 bf_get(lpfc_mbox_hdr_add_status,
6609 &dealloc_rsrc->header.cfg_shdr.response));
6614 /* Release kernel memory resources for the specific type. */
6616 case LPFC_RSC_TYPE_FCOE_VPI:
6617 kfree(phba->vpi_bmask);
6618 kfree(phba->vpi_ids);
6619 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6620 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6621 &phba->lpfc_vpi_blk_list, list) {
6622 list_del_init(&rsrc_blk->list);
6625 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6627 case LPFC_RSC_TYPE_FCOE_XRI:
6628 kfree(phba->sli4_hba.xri_bmask);
6629 kfree(phba->sli4_hba.xri_ids);
6630 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6631 &phba->sli4_hba.lpfc_xri_blk_list, list) {
6632 list_del_init(&rsrc_blk->list);
6636 case LPFC_RSC_TYPE_FCOE_VFI:
6637 kfree(phba->sli4_hba.vfi_bmask);
6638 kfree(phba->sli4_hba.vfi_ids);
6639 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6640 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6641 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
6642 list_del_init(&rsrc_blk->list);
6646 case LPFC_RSC_TYPE_FCOE_RPI:
6647 /* RPI bitmask and physical id array are cleaned up earlier. */
6648 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6649 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
6650 list_del_init(&rsrc_blk->list);
6658 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6661 mempool_free(mbox, phba->mbox_mem_pool);
6666 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
6672 len = sizeof(struct lpfc_mbx_set_feature) -
6673 sizeof(struct lpfc_sli4_cfg_mhdr);
6674 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6675 LPFC_MBOX_OPCODE_SET_FEATURES, len,
6676 LPFC_SLI4_MBX_EMBED);
6679 case LPFC_SET_UE_RECOVERY:
6680 bf_set(lpfc_mbx_set_feature_UER,
6681 &mbox->u.mqe.un.set_feature, 1);
6682 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
6683 mbox->u.mqe.un.set_feature.param_len = 8;
6685 case LPFC_SET_MDS_DIAGS:
6686 bf_set(lpfc_mbx_set_feature_mds,
6687 &mbox->u.mqe.un.set_feature, 1);
6688 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
6689 &mbox->u.mqe.un.set_feature, 1);
6690 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
6691 mbox->u.mqe.un.set_feature.param_len = 8;
6693 case LPFC_SET_CGN_SIGNAL:
6694 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6697 sig_freq = phba->cgn_sig_freq;
6699 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6700 bf_set(lpfc_mbx_set_feature_CGN_alarm_freq,
6701 &mbox->u.mqe.un.set_feature, sig_freq);
6702 bf_set(lpfc_mbx_set_feature_CGN_warn_freq,
6703 &mbox->u.mqe.un.set_feature, sig_freq);
6706 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY)
6707 bf_set(lpfc_mbx_set_feature_CGN_warn_freq,
6708 &mbox->u.mqe.un.set_feature, sig_freq);
6710 if (phba->cmf_active_mode == LPFC_CFG_OFF ||
6711 phba->cgn_reg_signal == EDC_CG_SIG_NOTSUPPORTED)
6714 sig_freq = lpfc_acqe_cgn_frequency;
6716 bf_set(lpfc_mbx_set_feature_CGN_acqe_freq,
6717 &mbox->u.mqe.un.set_feature, sig_freq);
6719 mbox->u.mqe.un.set_feature.feature = LPFC_SET_CGN_SIGNAL;
6720 mbox->u.mqe.un.set_feature.param_len = 12;
6722 case LPFC_SET_DUAL_DUMP:
6723 bf_set(lpfc_mbx_set_feature_dd,
6724 &mbox->u.mqe.un.set_feature, LPFC_ENABLE_DUAL_DUMP);
6725 bf_set(lpfc_mbx_set_feature_ddquery,
6726 &mbox->u.mqe.un.set_feature, 0);
6727 mbox->u.mqe.un.set_feature.feature = LPFC_SET_DUAL_DUMP;
6728 mbox->u.mqe.un.set_feature.param_len = 4;
6730 case LPFC_SET_ENABLE_MI:
6731 mbox->u.mqe.un.set_feature.feature = LPFC_SET_ENABLE_MI;
6732 mbox->u.mqe.un.set_feature.param_len = 4;
6733 bf_set(lpfc_mbx_set_feature_milunq, &mbox->u.mqe.un.set_feature,
6734 phba->pport->cfg_lun_queue_depth);
6735 bf_set(lpfc_mbx_set_feature_mi, &mbox->u.mqe.un.set_feature,
6736 phba->sli4_hba.pc_sli4_params.mi_ver);
6738 case LPFC_SET_ENABLE_CMF:
6739 bf_set(lpfc_mbx_set_feature_dd, &mbox->u.mqe.un.set_feature, 1);
6740 mbox->u.mqe.un.set_feature.feature = LPFC_SET_ENABLE_CMF;
6741 mbox->u.mqe.un.set_feature.param_len = 4;
6742 bf_set(lpfc_mbx_set_feature_cmf,
6743 &mbox->u.mqe.un.set_feature, 1);
6750 * lpfc_ras_stop_fwlog: Disable FW logging by the adapter
6751 * @phba: Pointer to HBA context object.
6753 * Disable FW logging into host memory on the adapter. To
6754 * be done before reading logs from the host memory.
6757 lpfc_ras_stop_fwlog(struct lpfc_hba *phba)
6759 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6761 spin_lock_irq(&phba->hbalock);
6762 ras_fwlog->state = INACTIVE;
6763 spin_unlock_irq(&phba->hbalock);
6765 /* Disable FW logging to host memory */
6766 writel(LPFC_CTL_PDEV_CTL_DDL_RAS,
6767 phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
6769 /* Wait 10ms for firmware to stop using DMA buffer */
6770 usleep_range(10 * 1000, 20 * 1000);
6774 * lpfc_sli4_ras_dma_free - Free memory allocated for FW logging.
6775 * @phba: Pointer to HBA context object.
6777 * This function is called to free memory allocated for RAS FW logging
6778 * support in the driver.
6781 lpfc_sli4_ras_dma_free(struct lpfc_hba *phba)
6783 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6784 struct lpfc_dmabuf *dmabuf, *next;
6786 if (!list_empty(&ras_fwlog->fwlog_buff_list)) {
6787 list_for_each_entry_safe(dmabuf, next,
6788 &ras_fwlog->fwlog_buff_list,
6790 list_del(&dmabuf->list);
6791 dma_free_coherent(&phba->pcidev->dev,
6792 LPFC_RAS_MAX_ENTRY_SIZE,
6793 dmabuf->virt, dmabuf->phys);
6798 if (ras_fwlog->lwpd.virt) {
6799 dma_free_coherent(&phba->pcidev->dev,
6800 sizeof(uint32_t) * 2,
6801 ras_fwlog->lwpd.virt,
6802 ras_fwlog->lwpd.phys);
6803 ras_fwlog->lwpd.virt = NULL;
6806 spin_lock_irq(&phba->hbalock);
6807 ras_fwlog->state = INACTIVE;
6808 spin_unlock_irq(&phba->hbalock);
6812 * lpfc_sli4_ras_dma_alloc: Allocate memory for FW support
6813 * @phba: Pointer to HBA context object.
6814 * @fwlog_buff_count: Count of buffers to be created.
6816 * This routine DMA memory for Log Write Position Data[LPWD] and buffer
6817 * to update FW log is posted to the adapter.
6818 * Buffer count is calculated based on module param ras_fwlog_buffsize
6819 * Size of each buffer posted to FW is 64K.
6823 lpfc_sli4_ras_dma_alloc(struct lpfc_hba *phba,
6824 uint32_t fwlog_buff_count)
6826 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6827 struct lpfc_dmabuf *dmabuf;
6830 /* Initialize List */
6831 INIT_LIST_HEAD(&ras_fwlog->fwlog_buff_list);
6833 /* Allocate memory for the LWPD */
6834 ras_fwlog->lwpd.virt = dma_alloc_coherent(&phba->pcidev->dev,
6835 sizeof(uint32_t) * 2,
6836 &ras_fwlog->lwpd.phys,
6838 if (!ras_fwlog->lwpd.virt) {
6839 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6840 "6185 LWPD Memory Alloc Failed\n");
6845 ras_fwlog->fw_buffcount = fwlog_buff_count;
6846 for (i = 0; i < ras_fwlog->fw_buffcount; i++) {
6847 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
6851 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6852 "6186 Memory Alloc failed FW logging");
6856 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6857 LPFC_RAS_MAX_ENTRY_SIZE,
6858 &dmabuf->phys, GFP_KERNEL);
6859 if (!dmabuf->virt) {
6862 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6863 "6187 DMA Alloc Failed FW logging");
6866 dmabuf->buffer_tag = i;
6867 list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
6872 lpfc_sli4_ras_dma_free(phba);
6878 * lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
6879 * @phba: pointer to lpfc hba data structure.
6880 * @pmb: pointer to the driver internal queue element for mailbox command.
6882 * Completion handler for driver's RAS MBX command to the device.
6885 lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6888 union lpfc_sli4_cfg_shdr *shdr;
6889 uint32_t shdr_status, shdr_add_status;
6890 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6894 shdr = (union lpfc_sli4_cfg_shdr *)
6895 &pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
6896 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6897 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6899 if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
6900 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6901 "6188 FW LOG mailbox "
6902 "completed with status x%x add_status x%x,"
6903 " mbx status x%x\n",
6904 shdr_status, shdr_add_status, mb->mbxStatus);
6906 ras_fwlog->ras_hwsupport = false;
6910 spin_lock_irq(&phba->hbalock);
6911 ras_fwlog->state = ACTIVE;
6912 spin_unlock_irq(&phba->hbalock);
6913 mempool_free(pmb, phba->mbox_mem_pool);
6918 /* Free RAS DMA memory */
6919 lpfc_sli4_ras_dma_free(phba);
6920 mempool_free(pmb, phba->mbox_mem_pool);
6924 * lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
6925 * @phba: pointer to lpfc hba data structure.
6926 * @fwlog_level: Logging verbosity level.
6927 * @fwlog_enable: Enable/Disable logging.
6929 * Initialize memory and post mailbox command to enable FW logging in host
6933 lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
6934 uint32_t fwlog_level,
6935 uint32_t fwlog_enable)
6937 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6938 struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
6939 struct lpfc_dmabuf *dmabuf;
6941 uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
6944 spin_lock_irq(&phba->hbalock);
6945 ras_fwlog->state = INACTIVE;
6946 spin_unlock_irq(&phba->hbalock);
6948 fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
6949 phba->cfg_ras_fwlog_buffsize);
6950 fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
6953 * If re-enabling FW logging support use earlier allocated
6954 * DMA buffers while posting MBX command.
6956 if (!ras_fwlog->lwpd.virt) {
6957 rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
6959 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6960 "6189 FW Log Memory Allocation Failed");
6965 /* Setup Mailbox command */
6966 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6968 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6969 "6190 RAS MBX Alloc Failed");
6974 ras_fwlog->fw_loglevel = fwlog_level;
6975 len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
6976 sizeof(struct lpfc_sli4_cfg_mhdr));
6978 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
6979 LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
6980 len, LPFC_SLI4_MBX_EMBED);
6982 mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
6983 bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
6985 bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
6986 ras_fwlog->fw_loglevel);
6987 bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
6988 ras_fwlog->fw_buffcount);
6989 bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
6990 LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
6992 /* Update DMA buffer address */
6993 list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
6994 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
6996 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
6997 putPaddrLow(dmabuf->phys);
6999 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
7000 putPaddrHigh(dmabuf->phys);
7003 /* Update LPWD address */
7004 mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
7005 mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
7007 spin_lock_irq(&phba->hbalock);
7008 ras_fwlog->state = REG_INPROGRESS;
7009 spin_unlock_irq(&phba->hbalock);
7010 mbox->vport = phba->pport;
7011 mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
7013 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
7015 if (rc == MBX_NOT_FINISHED) {
7016 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7017 "6191 FW-Log Mailbox failed. "
7018 "status %d mbxStatus : x%x", rc,
7019 bf_get(lpfc_mqe_status, &mbox->u.mqe));
7020 mempool_free(mbox, phba->mbox_mem_pool);
7027 lpfc_sli4_ras_dma_free(phba);
7033 * lpfc_sli4_ras_setup - Check if RAS supported on the adapter
7034 * @phba: Pointer to HBA context object.
7036 * Check if RAS is supported on the adapter and initialize it.
7039 lpfc_sli4_ras_setup(struct lpfc_hba *phba)
7041 /* Check RAS FW Log needs to be enabled or not */
7042 if (lpfc_check_fwlog_support(phba))
7045 lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
7046 LPFC_RAS_ENABLE_LOGGING);
7050 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
7051 * @phba: Pointer to HBA context object.
7053 * This function allocates all SLI4 resource identifiers.
7056 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
7058 int i, rc, error = 0;
7059 uint16_t count, base;
7060 unsigned long longs;
7062 if (!phba->sli4_hba.rpi_hdrs_in_use)
7063 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
7064 if (phba->sli4_hba.extents_in_use) {
7066 * The port supports resource extents. The XRI, VPI, VFI, RPI
7067 * resource extent count must be read and allocated before
7068 * provisioning the resource id arrays.
7070 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
7071 LPFC_IDX_RSRC_RDY) {
7073 * Extent-based resources are set - the driver could
7074 * be in a port reset. Figure out if any corrective
7075 * actions need to be taken.
7077 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
7078 LPFC_RSC_TYPE_FCOE_VFI);
7081 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
7082 LPFC_RSC_TYPE_FCOE_VPI);
7085 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
7086 LPFC_RSC_TYPE_FCOE_XRI);
7089 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
7090 LPFC_RSC_TYPE_FCOE_RPI);
7095 * It's possible that the number of resources
7096 * provided to this port instance changed between
7097 * resets. Detect this condition and reallocate
7098 * resources. Otherwise, there is no action.
7101 lpfc_printf_log(phba, KERN_INFO,
7102 LOG_MBOX | LOG_INIT,
7103 "2931 Detected extent resource "
7104 "change. Reallocating all "
7106 rc = lpfc_sli4_dealloc_extent(phba,
7107 LPFC_RSC_TYPE_FCOE_VFI);
7108 rc = lpfc_sli4_dealloc_extent(phba,
7109 LPFC_RSC_TYPE_FCOE_VPI);
7110 rc = lpfc_sli4_dealloc_extent(phba,
7111 LPFC_RSC_TYPE_FCOE_XRI);
7112 rc = lpfc_sli4_dealloc_extent(phba,
7113 LPFC_RSC_TYPE_FCOE_RPI);
7118 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
7122 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
7126 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
7130 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
7133 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
7138 * The port does not support resource extents. The XRI, VPI,
7139 * VFI, RPI resource ids were determined from READ_CONFIG.
7140 * Just allocate the bitmasks and provision the resource id
7141 * arrays. If a port reset is active, the resources don't
7142 * need any action - just exit.
7144 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
7145 LPFC_IDX_RSRC_RDY) {
7146 lpfc_sli4_dealloc_resource_identifiers(phba);
7147 lpfc_sli4_remove_rpis(phba);
7150 count = phba->sli4_hba.max_cfg_param.max_rpi;
7152 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7153 "3279 Invalid provisioning of "
7158 base = phba->sli4_hba.max_cfg_param.rpi_base;
7159 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
7160 phba->sli4_hba.rpi_bmask = kcalloc(longs,
7161 sizeof(unsigned long),
7163 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
7167 phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
7169 if (unlikely(!phba->sli4_hba.rpi_ids)) {
7171 goto free_rpi_bmask;
7174 for (i = 0; i < count; i++)
7175 phba->sli4_hba.rpi_ids[i] = base + i;
7178 count = phba->sli4_hba.max_cfg_param.max_vpi;
7180 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7181 "3280 Invalid provisioning of "
7186 base = phba->sli4_hba.max_cfg_param.vpi_base;
7187 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
7188 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
7190 if (unlikely(!phba->vpi_bmask)) {
7194 phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
7196 if (unlikely(!phba->vpi_ids)) {
7198 goto free_vpi_bmask;
7201 for (i = 0; i < count; i++)
7202 phba->vpi_ids[i] = base + i;
7205 count = phba->sli4_hba.max_cfg_param.max_xri;
7207 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7208 "3281 Invalid provisioning of "
7213 base = phba->sli4_hba.max_cfg_param.xri_base;
7214 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
7215 phba->sli4_hba.xri_bmask = kcalloc(longs,
7216 sizeof(unsigned long),
7218 if (unlikely(!phba->sli4_hba.xri_bmask)) {
7222 phba->sli4_hba.max_cfg_param.xri_used = 0;
7223 phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
7225 if (unlikely(!phba->sli4_hba.xri_ids)) {
7227 goto free_xri_bmask;
7230 for (i = 0; i < count; i++)
7231 phba->sli4_hba.xri_ids[i] = base + i;
7234 count = phba->sli4_hba.max_cfg_param.max_vfi;
7236 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7237 "3282 Invalid provisioning of "
7242 base = phba->sli4_hba.max_cfg_param.vfi_base;
7243 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
7244 phba->sli4_hba.vfi_bmask = kcalloc(longs,
7245 sizeof(unsigned long),
7247 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
7251 phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
7253 if (unlikely(!phba->sli4_hba.vfi_ids)) {
7255 goto free_vfi_bmask;
7258 for (i = 0; i < count; i++)
7259 phba->sli4_hba.vfi_ids[i] = base + i;
7262 * Mark all resources ready. An HBA reset doesn't need
7263 * to reset the initialization.
7265 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
7271 kfree(phba->sli4_hba.vfi_bmask);
7272 phba->sli4_hba.vfi_bmask = NULL;
7274 kfree(phba->sli4_hba.xri_ids);
7275 phba->sli4_hba.xri_ids = NULL;
7277 kfree(phba->sli4_hba.xri_bmask);
7278 phba->sli4_hba.xri_bmask = NULL;
7280 kfree(phba->vpi_ids);
7281 phba->vpi_ids = NULL;
7283 kfree(phba->vpi_bmask);
7284 phba->vpi_bmask = NULL;
7286 kfree(phba->sli4_hba.rpi_ids);
7287 phba->sli4_hba.rpi_ids = NULL;
7289 kfree(phba->sli4_hba.rpi_bmask);
7290 phba->sli4_hba.rpi_bmask = NULL;
7296 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
7297 * @phba: Pointer to HBA context object.
7299 * This function allocates the number of elements for the specified
7303 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
7305 if (phba->sli4_hba.extents_in_use) {
7306 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
7307 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
7308 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
7309 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
7311 kfree(phba->vpi_bmask);
7312 phba->sli4_hba.max_cfg_param.vpi_used = 0;
7313 kfree(phba->vpi_ids);
7314 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
7315 kfree(phba->sli4_hba.xri_bmask);
7316 kfree(phba->sli4_hba.xri_ids);
7317 kfree(phba->sli4_hba.vfi_bmask);
7318 kfree(phba->sli4_hba.vfi_ids);
7319 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
7320 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
7327 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
7328 * @phba: Pointer to HBA context object.
7329 * @type: The resource extent type.
7330 * @extnt_cnt: buffer to hold port extent count response
7331 * @extnt_size: buffer to hold port extent size response.
7333 * This function calls the port to read the host allocated extents
7334 * for a particular type.
7337 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
7338 uint16_t *extnt_cnt, uint16_t *extnt_size)
7342 uint16_t curr_blks = 0;
7343 uint32_t req_len, emb_len;
7344 uint32_t alloc_len, mbox_tmo;
7345 struct list_head *blk_list_head;
7346 struct lpfc_rsrc_blks *rsrc_blk;
7348 void *virtaddr = NULL;
7349 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
7350 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
7351 union lpfc_sli4_cfg_shdr *shdr;
7354 case LPFC_RSC_TYPE_FCOE_VPI:
7355 blk_list_head = &phba->lpfc_vpi_blk_list;
7357 case LPFC_RSC_TYPE_FCOE_XRI:
7358 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
7360 case LPFC_RSC_TYPE_FCOE_VFI:
7361 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
7363 case LPFC_RSC_TYPE_FCOE_RPI:
7364 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
7370 /* Count the number of extents currently allocatd for this type. */
7371 list_for_each_entry(rsrc_blk, blk_list_head, list) {
7372 if (curr_blks == 0) {
7374 * The GET_ALLOCATED mailbox does not return the size,
7375 * just the count. The size should be just the size
7376 * stored in the current allocated block and all sizes
7377 * for an extent type are the same so set the return
7380 *extnt_size = rsrc_blk->rsrc_size;
7386 * Calculate the size of an embedded mailbox. The uint32_t
7387 * accounts for extents-specific word.
7389 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
7393 * Presume the allocation and response will fit into an embedded
7394 * mailbox. If not true, reconfigure to a non-embedded mailbox.
7396 emb = LPFC_SLI4_MBX_EMBED;
7398 if (req_len > emb_len) {
7399 req_len = curr_blks * sizeof(uint16_t) +
7400 sizeof(union lpfc_sli4_cfg_shdr) +
7402 emb = LPFC_SLI4_MBX_NEMBED;
7405 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7408 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
7410 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7411 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
7413 if (alloc_len < req_len) {
7414 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7415 "2983 Allocated DMA memory size (x%x) is "
7416 "less than the requested DMA memory "
7417 "size (x%x)\n", alloc_len, req_len);
7421 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
7427 if (!phba->sli4_hba.intr_enable)
7428 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
7430 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
7431 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
7440 * Figure out where the response is located. Then get local pointers
7441 * to the response data. The port does not guarantee to respond to
7442 * all extents counts request so update the local variable with the
7443 * allocated count from the port.
7445 if (emb == LPFC_SLI4_MBX_EMBED) {
7446 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
7447 shdr = &rsrc_ext->header.cfg_shdr;
7448 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
7450 virtaddr = mbox->sge_array->addr[0];
7451 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
7452 shdr = &n_rsrc->cfg_shdr;
7453 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
7456 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
7457 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7458 "2984 Failed to read allocated resources "
7459 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
7461 bf_get(lpfc_mbox_hdr_status, &shdr->response),
7462 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
7467 lpfc_sli4_mbox_cmd_free(phba, mbox);
7472 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
7473 * @phba: pointer to lpfc hba data structure.
7474 * @sgl_list: linked link of sgl buffers to post
7475 * @cnt: number of linked list buffers
7477 * This routine walks the list of buffers that have been allocated and
7478 * repost them to the port by using SGL block post. This is needed after a
7479 * pci_function_reset/warm_start or start. It attempts to construct blocks
7480 * of buffer sgls which contains contiguous xris and uses the non-embedded
7481 * SGL block post mailbox commands to post them to the port. For single
7482 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
7483 * mailbox command for posting.
7485 * Returns: 0 = success, non-zero failure.
7488 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
7489 struct list_head *sgl_list, int cnt)
7491 struct lpfc_sglq *sglq_entry = NULL;
7492 struct lpfc_sglq *sglq_entry_next = NULL;
7493 struct lpfc_sglq *sglq_entry_first = NULL;
7494 int status, total_cnt;
7495 int post_cnt = 0, num_posted = 0, block_cnt = 0;
7496 int last_xritag = NO_XRI;
7497 LIST_HEAD(prep_sgl_list);
7498 LIST_HEAD(blck_sgl_list);
7499 LIST_HEAD(allc_sgl_list);
7500 LIST_HEAD(post_sgl_list);
7501 LIST_HEAD(free_sgl_list);
7503 spin_lock_irq(&phba->hbalock);
7504 spin_lock(&phba->sli4_hba.sgl_list_lock);
7505 list_splice_init(sgl_list, &allc_sgl_list);
7506 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7507 spin_unlock_irq(&phba->hbalock);
7510 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
7511 &allc_sgl_list, list) {
7512 list_del_init(&sglq_entry->list);
7514 if ((last_xritag != NO_XRI) &&
7515 (sglq_entry->sli4_xritag != last_xritag + 1)) {
7516 /* a hole in xri block, form a sgl posting block */
7517 list_splice_init(&prep_sgl_list, &blck_sgl_list);
7518 post_cnt = block_cnt - 1;
7519 /* prepare list for next posting block */
7520 list_add_tail(&sglq_entry->list, &prep_sgl_list);
7523 /* prepare list for next posting block */
7524 list_add_tail(&sglq_entry->list, &prep_sgl_list);
7525 /* enough sgls for non-embed sgl mbox command */
7526 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
7527 list_splice_init(&prep_sgl_list,
7529 post_cnt = block_cnt;
7535 /* keep track of last sgl's xritag */
7536 last_xritag = sglq_entry->sli4_xritag;
7538 /* end of repost sgl list condition for buffers */
7539 if (num_posted == total_cnt) {
7540 if (post_cnt == 0) {
7541 list_splice_init(&prep_sgl_list,
7543 post_cnt = block_cnt;
7544 } else if (block_cnt == 1) {
7545 status = lpfc_sli4_post_sgl(phba,
7546 sglq_entry->phys, 0,
7547 sglq_entry->sli4_xritag);
7549 /* successful, put sgl to posted list */
7550 list_add_tail(&sglq_entry->list,
7553 /* Failure, put sgl to free list */
7554 lpfc_printf_log(phba, KERN_WARNING,
7556 "3159 Failed to post "
7557 "sgl, xritag:x%x\n",
7558 sglq_entry->sli4_xritag);
7559 list_add_tail(&sglq_entry->list,
7566 /* continue until a nembed page worth of sgls */
7570 /* post the buffer list sgls as a block */
7571 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
7575 /* success, put sgl list to posted sgl list */
7576 list_splice_init(&blck_sgl_list, &post_sgl_list);
7578 /* Failure, put sgl list to free sgl list */
7579 sglq_entry_first = list_first_entry(&blck_sgl_list,
7582 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7583 "3160 Failed to post sgl-list, "
7585 sglq_entry_first->sli4_xritag,
7586 (sglq_entry_first->sli4_xritag +
7588 list_splice_init(&blck_sgl_list, &free_sgl_list);
7589 total_cnt -= post_cnt;
7592 /* don't reset xirtag due to hole in xri block */
7594 last_xritag = NO_XRI;
7596 /* reset sgl post count for next round of posting */
7600 /* free the sgls failed to post */
7601 lpfc_free_sgl_list(phba, &free_sgl_list);
7603 /* push sgls posted to the available list */
7604 if (!list_empty(&post_sgl_list)) {
7605 spin_lock_irq(&phba->hbalock);
7606 spin_lock(&phba->sli4_hba.sgl_list_lock);
7607 list_splice_init(&post_sgl_list, sgl_list);
7608 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7609 spin_unlock_irq(&phba->hbalock);
7611 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7612 "3161 Failure to post sgl to port.\n");
7616 /* return the number of XRIs actually posted */
7621 * lpfc_sli4_repost_io_sgl_list - Repost all the allocated nvme buffer sgls
7622 * @phba: pointer to lpfc hba data structure.
7624 * This routine walks the list of nvme buffers that have been allocated and
7625 * repost them to the port by using SGL block post. This is needed after a
7626 * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine
7627 * is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list
7628 * to the lpfc_io_buf_list. If the repost fails, reject all nvme buffers.
7630 * Returns: 0 = success, non-zero failure.
7633 lpfc_sli4_repost_io_sgl_list(struct lpfc_hba *phba)
7635 LIST_HEAD(post_nblist);
7636 int num_posted, rc = 0;
7638 /* get all NVME buffers need to repost to a local list */
7639 lpfc_io_buf_flush(phba, &post_nblist);
7641 /* post the list of nvme buffer sgls to port if available */
7642 if (!list_empty(&post_nblist)) {
7643 num_posted = lpfc_sli4_post_io_sgl_list(
7644 phba, &post_nblist, phba->sli4_hba.io_xri_cnt);
7645 /* failed to post any nvme buffer, return error */
7646 if (num_posted == 0)
7653 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
7657 len = sizeof(struct lpfc_mbx_set_host_data) -
7658 sizeof(struct lpfc_sli4_cfg_mhdr);
7659 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7660 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
7661 LPFC_SLI4_MBX_EMBED);
7663 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
7664 mbox->u.mqe.un.set_host_data.param_len =
7665 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
7666 snprintf(mbox->u.mqe.un.set_host_data.un.data,
7667 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
7668 "Linux %s v"LPFC_DRIVER_VERSION,
7669 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
7673 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
7674 struct lpfc_queue *drq, int count, int idx)
7677 struct lpfc_rqe hrqe;
7678 struct lpfc_rqe drqe;
7679 struct lpfc_rqb *rqbp;
7680 unsigned long flags;
7681 struct rqb_dmabuf *rqb_buffer;
7682 LIST_HEAD(rqb_buf_list);
7685 for (i = 0; i < count; i++) {
7686 spin_lock_irqsave(&phba->hbalock, flags);
7687 /* IF RQ is already full, don't bother */
7688 if (rqbp->buffer_count + i >= rqbp->entry_count - 1) {
7689 spin_unlock_irqrestore(&phba->hbalock, flags);
7692 spin_unlock_irqrestore(&phba->hbalock, flags);
7694 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
7697 rqb_buffer->hrq = hrq;
7698 rqb_buffer->drq = drq;
7699 rqb_buffer->idx = idx;
7700 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
7703 spin_lock_irqsave(&phba->hbalock, flags);
7704 while (!list_empty(&rqb_buf_list)) {
7705 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
7708 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
7709 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
7710 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
7711 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
7712 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
7714 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7715 "6421 Cannot post to HRQ %d: %x %x %x "
7723 rqbp->rqb_free_buffer(phba, rqb_buffer);
7725 list_add_tail(&rqb_buffer->hbuf.list,
7726 &rqbp->rqb_buffer_list);
7727 rqbp->buffer_count++;
7730 spin_unlock_irqrestore(&phba->hbalock, flags);
7735 lpfc_mbx_cmpl_cgn_set_ftrs(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7737 struct lpfc_vport *vport = pmb->vport;
7738 union lpfc_sli4_cfg_shdr *shdr;
7739 u32 shdr_status, shdr_add_status;
7742 /* Two outcomes. (1) Set featurs was successul and EDC negotiation
7743 * is done. (2) Mailbox failed and send FPIN support only.
7745 shdr = (union lpfc_sli4_cfg_shdr *)
7746 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7747 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7748 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7749 if (shdr_status || shdr_add_status || pmb->u.mb.mbxStatus) {
7750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_CGN_MGMT,
7751 "2516 CGN SET_FEATURE mbox failed with "
7752 "status x%x add_status x%x, mbx status x%x "
7753 "Reset Congestion to FPINs only\n",
7754 shdr_status, shdr_add_status,
7755 pmb->u.mb.mbxStatus);
7756 /* If there is a mbox error, move on to RDF */
7757 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
7758 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
7762 /* Zero out Congestion Signal ACQE counter */
7763 phba->cgn_acqe_cnt = 0;
7764 atomic64_set(&phba->cgn_acqe_stat.warn, 0);
7765 atomic64_set(&phba->cgn_acqe_stat.alarm, 0);
7767 acqe = bf_get(lpfc_mbx_set_feature_CGN_acqe_freq,
7768 &pmb->u.mqe.un.set_feature);
7769 sig = bf_get(lpfc_mbx_set_feature_CGN_warn_freq,
7770 &pmb->u.mqe.un.set_feature);
7771 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7772 "4620 SET_FEATURES Success: Freq: %ds %dms "
7773 " Reg: x%x x%x\n", acqe, sig,
7774 phba->cgn_reg_signal, phba->cgn_reg_fpin);
7776 mempool_free(pmb, phba->mbox_mem_pool);
7778 /* Register for FPIN events from the fabric now that the
7779 * EDC common_set_features has completed.
7781 lpfc_issue_els_rdf(vport, 0);
7785 lpfc_config_cgn_signal(struct lpfc_hba *phba)
7787 LPFC_MBOXQ_t *mboxq;
7790 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7794 lpfc_set_features(phba, mboxq, LPFC_SET_CGN_SIGNAL);
7795 mboxq->vport = phba->pport;
7796 mboxq->mbox_cmpl = lpfc_mbx_cmpl_cgn_set_ftrs;
7798 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7799 "4621 SET_FEATURES: FREQ sig x%x acqe x%x: "
7801 phba->cgn_sig_freq, lpfc_acqe_cgn_frequency,
7802 phba->cgn_reg_signal, phba->cgn_reg_fpin);
7804 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
7805 if (rc == MBX_NOT_FINISHED)
7810 mempool_free(mboxq, phba->mbox_mem_pool);
7812 /* If there is a mbox error, move on to RDF */
7813 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
7814 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
7815 lpfc_issue_els_rdf(phba->pport, 0);
7820 * lpfc_init_idle_stat_hb - Initialize idle_stat tracking
7821 * @phba: pointer to lpfc hba data structure.
7823 * This routine initializes the per-cq idle_stat to dynamically dictate
7824 * polling decisions.
7829 static void lpfc_init_idle_stat_hb(struct lpfc_hba *phba)
7832 struct lpfc_sli4_hdw_queue *hdwq;
7833 struct lpfc_queue *cq;
7834 struct lpfc_idle_stat *idle_stat;
7837 for_each_present_cpu(i) {
7838 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
7841 /* Skip if we've already handled this cq's primary CPU */
7845 idle_stat = &phba->sli4_hba.idle_stat[i];
7847 idle_stat->prev_idle = get_cpu_idle_time(i, &wall, 1);
7848 idle_stat->prev_wall = wall;
7850 if (phba->nvmet_support ||
7851 phba->cmf_active_mode != LPFC_CFG_OFF)
7852 cq->poll_mode = LPFC_QUEUE_WORK;
7854 cq->poll_mode = LPFC_IRQ_POLL;
7857 if (!phba->nvmet_support)
7858 schedule_delayed_work(&phba->idle_stat_delay_work,
7859 msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
7862 static void lpfc_sli4_dip(struct lpfc_hba *phba)
7866 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7867 if (if_type == LPFC_SLI_INTF_IF_TYPE_2 ||
7868 if_type == LPFC_SLI_INTF_IF_TYPE_6) {
7869 struct lpfc_register reg_data;
7871 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7875 if (bf_get(lpfc_sliport_status_dip, ®_data))
7876 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7877 "2904 Firmware Dump Image Present"
7883 * lpfc_cmf_setup - Initialize idle_stat tracking
7884 * @phba: Pointer to HBA context object.
7886 * This is called from HBA setup during driver load or when the HBA
7887 * comes online. this does all the initialization to support CMF and MI.
7890 lpfc_cmf_setup(struct lpfc_hba *phba)
7892 LPFC_MBOXQ_t *mboxq;
7893 struct lpfc_mqe *mqe;
7894 struct lpfc_dmabuf *mp;
7895 struct lpfc_pc_sli4_params *sli4_params;
7896 struct lpfc_sli4_parameters *mbx_sli4_parameters;
7898 int rc, cmf, mi_ver;
7900 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7903 mqe = &mboxq->u.mqe;
7905 /* Read the port's SLI4 Config Parameters */
7906 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
7907 sizeof(struct lpfc_sli4_cfg_mhdr));
7908 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7909 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
7910 length, LPFC_SLI4_MBX_EMBED);
7912 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7914 mempool_free(mboxq, phba->mbox_mem_pool);
7918 /* Gather info on CMF and MI support */
7919 sli4_params = &phba->sli4_hba.pc_sli4_params;
7920 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
7921 sli4_params->mi_ver = bf_get(cfg_mi_ver, mbx_sli4_parameters);
7922 sli4_params->cmf = bf_get(cfg_cmf, mbx_sli4_parameters);
7924 /* Are we forcing MI off via module parameter? */
7925 if (!phba->cfg_enable_mi)
7926 sli4_params->mi_ver = 0;
7928 /* Always try to enable MI feature if we can */
7929 if (sli4_params->mi_ver) {
7930 lpfc_set_features(phba, mboxq, LPFC_SET_ENABLE_MI);
7931 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7932 mi_ver = bf_get(lpfc_mbx_set_feature_mi,
7933 &mboxq->u.mqe.un.set_feature);
7935 if (rc == MBX_SUCCESS) {
7937 lpfc_printf_log(phba,
7938 KERN_WARNING, LOG_CGN_MGMT,
7939 "6215 MI is enabled\n");
7940 sli4_params->mi_ver = mi_ver;
7942 lpfc_printf_log(phba,
7943 KERN_WARNING, LOG_CGN_MGMT,
7944 "6338 MI is disabled\n");
7945 sli4_params->mi_ver = 0;
7948 /* mi_ver is already set from GET_SLI4_PARAMETERS */
7949 lpfc_printf_log(phba, KERN_INFO,
7950 LOG_CGN_MGMT | LOG_INIT,
7951 "6245 Enable MI Mailbox x%x (x%x/x%x) "
7952 "failed, rc:x%x mi:x%x\n",
7953 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7954 lpfc_sli_config_mbox_subsys_get
7956 lpfc_sli_config_mbox_opcode_get
7958 rc, sli4_params->mi_ver);
7961 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
7962 "6217 MI is disabled\n");
7965 /* Ensure FDMI is enabled for MI if enable_mi is set */
7966 if (sli4_params->mi_ver)
7967 phba->cfg_fdmi_on = LPFC_FDMI_SUPPORT;
7969 /* Always try to enable CMF feature if we can */
7970 if (sli4_params->cmf) {
7971 lpfc_set_features(phba, mboxq, LPFC_SET_ENABLE_CMF);
7972 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7973 cmf = bf_get(lpfc_mbx_set_feature_cmf,
7974 &mboxq->u.mqe.un.set_feature);
7975 if (rc == MBX_SUCCESS && cmf) {
7976 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
7977 "6218 CMF is enabled: mode %d\n",
7978 phba->cmf_active_mode);
7980 lpfc_printf_log(phba, KERN_WARNING,
7981 LOG_CGN_MGMT | LOG_INIT,
7982 "6219 Enable CMF Mailbox x%x (x%x/x%x) "
7983 "failed, rc:x%x dd:x%x\n",
7984 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7985 lpfc_sli_config_mbox_subsys_get
7987 lpfc_sli_config_mbox_opcode_get
7990 sli4_params->cmf = 0;
7991 phba->cmf_active_mode = LPFC_CFG_OFF;
7995 /* Allocate Congestion Information Buffer */
7997 mp = kmalloc(sizeof(*mp), GFP_KERNEL);
7999 mp->virt = dma_alloc_coherent
8000 (&phba->pcidev->dev,
8001 sizeof(struct lpfc_cgn_info),
8002 &mp->phys, GFP_KERNEL);
8003 if (!mp || !mp->virt) {
8004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8005 "2640 Failed to alloc memory "
8006 "for Congestion Info\n");
8008 sli4_params->cmf = 0;
8009 phba->cmf_active_mode = LPFC_CFG_OFF;
8014 /* initialize congestion buffer info */
8015 lpfc_init_congestion_buf(phba);
8016 lpfc_init_congestion_stat(phba);
8019 rc = lpfc_sli4_cgn_params_read(phba);
8021 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
8022 "6242 Error reading Cgn Params (%d)\n",
8024 /* Ensure CGN Mode is off */
8025 sli4_params->cmf = 0;
8027 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
8028 "6243 CGN Event empty object.\n");
8029 /* Ensure CGN Mode is off */
8030 sli4_params->cmf = 0;
8034 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
8035 "6220 CMF is disabled\n");
8038 /* Only register congestion buffer with firmware if BOTH
8039 * CMF and E2E are enabled.
8041 if (sli4_params->cmf && sli4_params->mi_ver) {
8042 rc = lpfc_reg_congestion_buf(phba);
8044 dma_free_coherent(&phba->pcidev->dev,
8045 sizeof(struct lpfc_cgn_info),
8046 phba->cgn_i->virt, phba->cgn_i->phys);
8049 /* Ensure CGN Mode is off */
8050 phba->cmf_active_mode = LPFC_CFG_OFF;
8054 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8055 "6470 Setup MI version %d CMF %d mode %d\n",
8056 sli4_params->mi_ver, sli4_params->cmf,
8057 phba->cmf_active_mode);
8059 mempool_free(mboxq, phba->mbox_mem_pool);
8061 /* Initialize atomic counters */
8062 atomic_set(&phba->cgn_fabric_warn_cnt, 0);
8063 atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
8064 atomic_set(&phba->cgn_sync_alarm_cnt, 0);
8065 atomic_set(&phba->cgn_sync_warn_cnt, 0);
8066 atomic_set(&phba->cgn_driver_evt_cnt, 0);
8067 atomic_set(&phba->cgn_latency_evt_cnt, 0);
8068 atomic64_set(&phba->cgn_latency_evt, 0);
8070 phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
8072 /* Allocate RX Monitor Buffer */
8073 if (!phba->rxtable) {
8074 phba->rxtable = kmalloc_array(LPFC_MAX_RXMONITOR_ENTRY,
8075 sizeof(struct rxtable_entry),
8077 if (!phba->rxtable) {
8078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8079 "2644 Failed to alloc memory "
8080 "for RX Monitor Buffer\n");
8084 atomic_set(&phba->rxtable_idx_head, 0);
8085 atomic_set(&phba->rxtable_idx_tail, 0);
8090 lpfc_set_host_tm(struct lpfc_hba *phba)
8092 LPFC_MBOXQ_t *mboxq;
8094 struct timespec64 cur_time;
8096 uint32_t month, day, year;
8097 uint32_t hour, minute, second;
8098 struct lpfc_mbx_set_host_date_time *tm;
8100 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8104 len = sizeof(struct lpfc_mbx_set_host_data) -
8105 sizeof(struct lpfc_sli4_cfg_mhdr);
8106 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8107 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
8108 LPFC_SLI4_MBX_EMBED);
8110 mboxq->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_DATE_TIME;
8111 mboxq->u.mqe.un.set_host_data.param_len =
8112 sizeof(struct lpfc_mbx_set_host_date_time);
8113 tm = &mboxq->u.mqe.un.set_host_data.un.tm;
8114 ktime_get_real_ts64(&cur_time);
8115 time64_to_tm(cur_time.tv_sec, 0, &broken);
8116 month = broken.tm_mon + 1;
8117 day = broken.tm_mday;
8118 year = broken.tm_year - 100;
8119 hour = broken.tm_hour;
8120 minute = broken.tm_min;
8121 second = broken.tm_sec;
8122 bf_set(lpfc_mbx_set_host_month, tm, month);
8123 bf_set(lpfc_mbx_set_host_day, tm, day);
8124 bf_set(lpfc_mbx_set_host_year, tm, year);
8125 bf_set(lpfc_mbx_set_host_hour, tm, hour);
8126 bf_set(lpfc_mbx_set_host_min, tm, minute);
8127 bf_set(lpfc_mbx_set_host_sec, tm, second);
8129 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8130 mempool_free(mboxq, phba->mbox_mem_pool);
8135 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
8136 * @phba: Pointer to HBA context object.
8138 * This function is the main SLI4 device initialization PCI function. This
8139 * function is called by the HBA initialization code, HBA reset code and
8140 * HBA error attention handler code. Caller is not required to hold any
8144 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
8146 int rc, i, cnt, len, dd;
8147 LPFC_MBOXQ_t *mboxq;
8148 struct lpfc_mqe *mqe;
8151 uint32_t ftr_rsp = 0;
8152 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
8153 struct lpfc_vport *vport = phba->pport;
8154 struct lpfc_dmabuf *mp;
8155 struct lpfc_rqb *rqbp;
8157 /* Perform a PCI function reset to start from clean */
8158 rc = lpfc_pci_function_reset(phba);
8162 /* Check the HBA Host Status Register for readyness */
8163 rc = lpfc_sli4_post_status_check(phba);
8167 spin_lock_irq(&phba->hbalock);
8168 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
8169 spin_unlock_irq(&phba->hbalock);
8172 lpfc_sli4_dip(phba);
8175 * Allocate a single mailbox container for initializing the
8178 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8182 /* Issue READ_REV to collect vpd and FW information. */
8183 vpd_size = SLI4_PAGE_SIZE;
8184 vpd = kzalloc(vpd_size, GFP_KERNEL);
8190 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
8196 mqe = &mboxq->u.mqe;
8197 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
8198 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
8199 phba->hba_flag |= HBA_FCOE_MODE;
8200 phba->fcp_embed_io = 0; /* SLI4 FC support only */
8202 phba->hba_flag &= ~HBA_FCOE_MODE;
8205 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
8207 phba->hba_flag |= HBA_FIP_SUPPORT;
8209 phba->hba_flag &= ~HBA_FIP_SUPPORT;
8211 phba->hba_flag &= ~HBA_IOQ_FLUSH;
8213 if (phba->sli_rev != LPFC_SLI_REV4) {
8214 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8215 "0376 READ_REV Error. SLI Level %d "
8216 "FCoE enabled %d\n",
8217 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
8223 rc = lpfc_set_host_tm(phba);
8224 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
8225 "6468 Set host date / time: Status x%x:\n", rc);
8228 * Continue initialization with default values even if driver failed
8229 * to read FCoE param config regions, only read parameters if the
8232 if (phba->hba_flag & HBA_FCOE_MODE &&
8233 lpfc_sli4_read_fcoe_params(phba))
8234 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
8235 "2570 Failed to read FCoE parameters\n");
8238 * Retrieve sli4 device physical port name, failure of doing it
8239 * is considered as non-fatal.
8241 rc = lpfc_sli4_retrieve_pport_name(phba);
8243 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8244 "3080 Successful retrieving SLI4 device "
8245 "physical port name: %s.\n", phba->Port);
8247 rc = lpfc_sli4_get_ctl_attr(phba);
8249 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8250 "8351 Successful retrieving SLI4 device "
8254 * Evaluate the read rev and vpd data. Populate the driver
8255 * state with the results. If this routine fails, the failure
8256 * is not fatal as the driver will use generic values.
8258 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
8259 if (unlikely(!rc)) {
8260 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8261 "0377 Error %d parsing vpd. "
8262 "Using defaults.\n", rc);
8267 /* Save information as VPD data */
8268 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
8269 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
8272 * This is because first G7 ASIC doesn't support the standard
8273 * 0x5a NVME cmd descriptor type/subtype
8275 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8276 LPFC_SLI_INTF_IF_TYPE_6) &&
8277 (phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
8278 (phba->vpd.rev.smRev == 0) &&
8279 (phba->cfg_nvme_embed_cmd == 1))
8280 phba->cfg_nvme_embed_cmd = 0;
8282 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
8283 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
8285 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
8287 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
8289 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
8291 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
8292 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
8293 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
8294 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
8295 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
8296 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
8297 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8298 "(%d):0380 READ_REV Status x%x "
8299 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
8300 mboxq->vport ? mboxq->vport->vpi : 0,
8301 bf_get(lpfc_mqe_status, mqe),
8302 phba->vpd.rev.opFwName,
8303 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
8304 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
8306 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8307 LPFC_SLI_INTF_IF_TYPE_0) {
8308 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
8309 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8310 if (rc == MBX_SUCCESS) {
8311 phba->hba_flag |= HBA_RECOVERABLE_UE;
8312 /* Set 1Sec interval to detect UE */
8313 phba->eratt_poll_interval = 1;
8314 phba->sli4_hba.ue_to_sr = bf_get(
8315 lpfc_mbx_set_feature_UESR,
8316 &mboxq->u.mqe.un.set_feature);
8317 phba->sli4_hba.ue_to_rp = bf_get(
8318 lpfc_mbx_set_feature_UERP,
8319 &mboxq->u.mqe.un.set_feature);
8323 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
8324 /* Enable MDS Diagnostics only if the SLI Port supports it */
8325 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
8326 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8327 if (rc != MBX_SUCCESS)
8328 phba->mds_diags_support = 0;
8332 * Discover the port's supported feature set and match it against the
8335 lpfc_request_features(phba, mboxq);
8336 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8342 /* Disable VMID if app header is not supported */
8343 if (phba->cfg_vmid_app_header && !(bf_get(lpfc_mbx_rq_ftr_rsp_ashdr,
8344 &mqe->un.req_ftrs))) {
8345 bf_set(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags, 0);
8346 phba->cfg_vmid_app_header = 0;
8347 lpfc_printf_log(phba, KERN_DEBUG, LOG_SLI,
8348 "1242 vmid feature not supported\n");
8352 * The port must support FCP initiator mode as this is the
8353 * only mode running in the host.
8355 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
8356 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8357 "0378 No support for fcpi mode.\n");
8361 /* Performance Hints are ONLY for FCoE */
8362 if (phba->hba_flag & HBA_FCOE_MODE) {
8363 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
8364 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
8366 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
8370 * If the port cannot support the host's requested features
8371 * then turn off the global config parameters to disable the
8372 * feature in the driver. This is not a fatal error.
8374 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8375 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
8376 phba->cfg_enable_bg = 0;
8377 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
8382 if (phba->max_vpi && phba->cfg_enable_npiv &&
8383 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
8387 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8388 "0379 Feature Mismatch Data: x%08x %08x "
8389 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
8390 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
8391 phba->cfg_enable_npiv, phba->max_vpi);
8392 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
8393 phba->cfg_enable_bg = 0;
8394 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
8395 phba->cfg_enable_npiv = 0;
8398 /* These SLI3 features are assumed in SLI4 */
8399 spin_lock_irq(&phba->hbalock);
8400 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
8401 spin_unlock_irq(&phba->hbalock);
8403 /* Always try to enable dual dump feature if we can */
8404 lpfc_set_features(phba, mboxq, LPFC_SET_DUAL_DUMP);
8405 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8406 dd = bf_get(lpfc_mbx_set_feature_dd, &mboxq->u.mqe.un.set_feature);
8407 if ((rc == MBX_SUCCESS) && (dd == LPFC_ENABLE_DUAL_DUMP))
8408 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8409 "6448 Dual Dump is enabled\n");
8411 lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_INIT,
8412 "6447 Dual Dump Mailbox x%x (x%x/x%x) failed, "
8414 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8415 lpfc_sli_config_mbox_subsys_get(
8417 lpfc_sli_config_mbox_opcode_get(
8421 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
8422 * calls depends on these resources to complete port setup.
8424 rc = lpfc_sli4_alloc_resource_identifiers(phba);
8426 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8427 "2920 Failed to alloc Resource IDs "
8432 lpfc_set_host_data(phba, mboxq);
8434 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8436 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8437 "2134 Failed to set host os driver version %x",
8441 /* Read the port's service parameters. */
8442 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
8444 phba->link_state = LPFC_HBA_ERROR;
8449 mboxq->vport = vport;
8450 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8451 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
8452 if (rc == MBX_SUCCESS) {
8453 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
8458 * This memory was allocated by the lpfc_read_sparam routine. Release
8459 * it to the mbuf pool.
8461 lpfc_mbuf_free(phba, mp->virt, mp->phys);
8463 mboxq->ctx_buf = NULL;
8465 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8466 "0382 READ_SPARAM command failed "
8467 "status %d, mbxStatus x%x\n",
8468 rc, bf_get(lpfc_mqe_status, mqe));
8469 phba->link_state = LPFC_HBA_ERROR;
8474 lpfc_update_vport_wwn(vport);
8476 /* Update the fc_host data structures with new wwn. */
8477 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
8478 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
8480 /* Create all the SLI4 queues */
8481 rc = lpfc_sli4_queue_create(phba);
8483 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8484 "3089 Failed to allocate queues\n");
8488 /* Set up all the queues to the device */
8489 rc = lpfc_sli4_queue_setup(phba);
8491 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8492 "0381 Error %d during queue setup.\n ", rc);
8493 goto out_stop_timers;
8495 /* Initialize the driver internal SLI layer lists. */
8496 lpfc_sli4_setup(phba);
8497 lpfc_sli4_queue_init(phba);
8499 /* update host els xri-sgl sizes and mappings */
8500 rc = lpfc_sli4_els_sgl_update(phba);
8502 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8503 "1400 Failed to update xri-sgl size and "
8504 "mapping: %d\n", rc);
8505 goto out_destroy_queue;
8508 /* register the els sgl pool to the port */
8509 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
8510 phba->sli4_hba.els_xri_cnt);
8511 if (unlikely(rc < 0)) {
8512 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8513 "0582 Error %d during els sgl post "
8516 goto out_destroy_queue;
8518 phba->sli4_hba.els_xri_cnt = rc;
8520 if (phba->nvmet_support) {
8521 /* update host nvmet xri-sgl sizes and mappings */
8522 rc = lpfc_sli4_nvmet_sgl_update(phba);
8524 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8525 "6308 Failed to update nvmet-sgl size "
8526 "and mapping: %d\n", rc);
8527 goto out_destroy_queue;
8530 /* register the nvmet sgl pool to the port */
8531 rc = lpfc_sli4_repost_sgl_list(
8533 &phba->sli4_hba.lpfc_nvmet_sgl_list,
8534 phba->sli4_hba.nvmet_xri_cnt);
8535 if (unlikely(rc < 0)) {
8536 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8537 "3117 Error %d during nvmet "
8540 goto out_destroy_queue;
8542 phba->sli4_hba.nvmet_xri_cnt = rc;
8544 /* We allocate an iocbq for every receive context SGL.
8545 * The additional allocation is for abort and ls handling.
8547 cnt = phba->sli4_hba.nvmet_xri_cnt +
8548 phba->sli4_hba.max_cfg_param.max_xri;
8550 /* update host common xri-sgl sizes and mappings */
8551 rc = lpfc_sli4_io_sgl_update(phba);
8553 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8554 "6082 Failed to update nvme-sgl size "
8555 "and mapping: %d\n", rc);
8556 goto out_destroy_queue;
8559 /* register the allocated common sgl pool to the port */
8560 rc = lpfc_sli4_repost_io_sgl_list(phba);
8562 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8563 "6116 Error %d during nvme sgl post "
8565 /* Some NVME buffers were moved to abort nvme list */
8566 /* A pci function reset will repost them */
8568 goto out_destroy_queue;
8570 /* Each lpfc_io_buf job structure has an iocbq element.
8571 * This cnt provides for abort, els, ct and ls requests.
8573 cnt = phba->sli4_hba.max_cfg_param.max_xri;
8576 if (!phba->sli.iocbq_lookup) {
8577 /* Initialize and populate the iocb list per host */
8578 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8579 "2821 initialize iocb list with %d entries\n",
8581 rc = lpfc_init_iocb_list(phba, cnt);
8583 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8584 "1413 Failed to init iocb list.\n");
8585 goto out_destroy_queue;
8589 if (phba->nvmet_support)
8590 lpfc_nvmet_create_targetport(phba);
8592 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
8593 /* Post initial buffers to all RQs created */
8594 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
8595 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
8596 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
8597 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
8598 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
8599 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
8600 rqbp->buffer_count = 0;
8602 lpfc_post_rq_buffer(
8603 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
8604 phba->sli4_hba.nvmet_mrq_data[i],
8605 phba->cfg_nvmet_mrq_post, i);
8609 /* Post the rpi header region to the device. */
8610 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
8612 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8613 "0393 Error %d during rpi post operation\n",
8616 goto out_free_iocblist;
8618 lpfc_sli4_node_prep(phba);
8620 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
8621 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
8623 * The FC Port needs to register FCFI (index 0)
8625 lpfc_reg_fcfi(phba, mboxq);
8626 mboxq->vport = phba->pport;
8627 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8628 if (rc != MBX_SUCCESS)
8629 goto out_unset_queue;
8631 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
8632 &mboxq->u.mqe.un.reg_fcfi);
8634 /* We are a NVME Target mode with MRQ > 1 */
8636 /* First register the FCFI */
8637 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
8638 mboxq->vport = phba->pport;
8639 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8640 if (rc != MBX_SUCCESS)
8641 goto out_unset_queue;
8643 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
8644 &mboxq->u.mqe.un.reg_fcfi_mrq);
8646 /* Next register the MRQs */
8647 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
8648 mboxq->vport = phba->pport;
8649 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8650 if (rc != MBX_SUCCESS)
8651 goto out_unset_queue;
8654 /* Check if the port is configured to be disabled */
8655 lpfc_sli_read_link_ste(phba);
8658 /* Don't post more new bufs if repost already recovered
8661 if (phba->nvmet_support == 0) {
8662 if (phba->sli4_hba.io_xri_cnt == 0) {
8663 len = lpfc_new_io_buf(
8664 phba, phba->sli4_hba.io_xri_max);
8667 goto out_unset_queue;
8670 if (phba->cfg_xri_rebalancing)
8671 lpfc_create_multixri_pools(phba);
8674 phba->cfg_xri_rebalancing = 0;
8677 /* Allow asynchronous mailbox command to go through */
8678 spin_lock_irq(&phba->hbalock);
8679 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8680 spin_unlock_irq(&phba->hbalock);
8682 /* Post receive buffers to the device */
8683 lpfc_sli4_rb_setup(phba);
8685 /* Reset HBA FCF states after HBA reset */
8686 phba->fcf.fcf_flag = 0;
8687 phba->fcf.current_rec.flag = 0;
8689 /* Start the ELS watchdog timer */
8690 mod_timer(&vport->els_tmofunc,
8691 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
8693 /* Start heart beat timer */
8694 mod_timer(&phba->hb_tmofunc,
8695 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
8696 phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
8697 phba->last_completion_time = jiffies;
8699 /* start eq_delay heartbeat */
8700 if (phba->cfg_auto_imax)
8701 queue_delayed_work(phba->wq, &phba->eq_delay_work,
8702 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
8704 /* start per phba idle_stat_delay heartbeat */
8705 lpfc_init_idle_stat_hb(phba);
8707 /* Start error attention (ERATT) polling timer */
8708 mod_timer(&phba->eratt_poll,
8709 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
8711 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
8712 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
8713 rc = pci_enable_pcie_error_reporting(phba->pcidev);
8715 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8716 "2829 This device supports "
8717 "Advanced Error Reporting (AER)\n");
8718 spin_lock_irq(&phba->hbalock);
8719 phba->hba_flag |= HBA_AER_ENABLED;
8720 spin_unlock_irq(&phba->hbalock);
8722 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8723 "2830 This device does not support "
8724 "Advanced Error Reporting (AER)\n");
8725 phba->cfg_aer_support = 0;
8731 * The port is ready, set the host's link state to LINK_DOWN
8732 * in preparation for link interrupts.
8734 spin_lock_irq(&phba->hbalock);
8735 phba->link_state = LPFC_LINK_DOWN;
8737 /* Check if physical ports are trunked */
8738 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
8739 phba->trunk_link.link0.state = LPFC_LINK_DOWN;
8740 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
8741 phba->trunk_link.link1.state = LPFC_LINK_DOWN;
8742 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
8743 phba->trunk_link.link2.state = LPFC_LINK_DOWN;
8744 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
8745 phba->trunk_link.link3.state = LPFC_LINK_DOWN;
8746 spin_unlock_irq(&phba->hbalock);
8748 /* Arm the CQs and then EQs on device */
8749 lpfc_sli4_arm_cqeq_intr(phba);
8751 /* Indicate device interrupt mode */
8752 phba->sli4_hba.intr_enable = 1;
8754 /* Setup CMF after HBA is initialized */
8755 lpfc_cmf_setup(phba);
8757 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
8758 (phba->hba_flag & LINK_DISABLED)) {
8759 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8760 "3103 Adapter Link is disabled.\n");
8761 lpfc_down_link(phba, mboxq);
8762 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8763 if (rc != MBX_SUCCESS) {
8764 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8765 "3104 Adapter failed to issue "
8766 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
8767 goto out_io_buff_free;
8769 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
8770 /* don't perform init_link on SLI4 FC port loopback test */
8771 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
8772 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
8774 goto out_io_buff_free;
8777 mempool_free(mboxq, phba->mbox_mem_pool);
8779 phba->hba_flag |= HBA_SETUP;
8783 /* Free allocated IO Buffers */
8786 /* Unset all the queues set up in this routine when error out */
8787 lpfc_sli4_queue_unset(phba);
8789 lpfc_free_iocb_list(phba);
8791 lpfc_sli4_queue_destroy(phba);
8793 lpfc_stop_hba_timers(phba);
8795 mempool_free(mboxq, phba->mbox_mem_pool);
8800 * lpfc_mbox_timeout - Timeout call back function for mbox timer
8801 * @t: Context to fetch pointer to hba structure from.
8803 * This is the callback function for mailbox timer. The mailbox
8804 * timer is armed when a new mailbox command is issued and the timer
8805 * is deleted when the mailbox complete. The function is called by
8806 * the kernel timer code when a mailbox does not complete within
8807 * expected time. This function wakes up the worker thread to
8808 * process the mailbox timeout and returns. All the processing is
8809 * done by the worker thread function lpfc_mbox_timeout_handler.
8812 lpfc_mbox_timeout(struct timer_list *t)
8814 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
8815 unsigned long iflag;
8816 uint32_t tmo_posted;
8818 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
8819 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
8821 phba->pport->work_port_events |= WORKER_MBOX_TMO;
8822 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
8825 lpfc_worker_wake_up(phba);
8830 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
8832 * @phba: Pointer to HBA context object.
8834 * This function checks if any mailbox completions are present on the mailbox
8838 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
8842 struct lpfc_queue *mcq;
8843 struct lpfc_mcqe *mcqe;
8844 bool pending_completions = false;
8847 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
8850 /* Check for completions on mailbox completion queue */
8852 mcq = phba->sli4_hba.mbx_cq;
8853 idx = mcq->hba_index;
8854 qe_valid = mcq->qe_valid;
8855 while (bf_get_le32(lpfc_cqe_valid,
8856 (struct lpfc_cqe *)lpfc_sli4_qe(mcq, idx)) == qe_valid) {
8857 mcqe = (struct lpfc_mcqe *)(lpfc_sli4_qe(mcq, idx));
8858 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
8859 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
8860 pending_completions = true;
8863 idx = (idx + 1) % mcq->entry_count;
8864 if (mcq->hba_index == idx)
8867 /* if the index wrapped around, toggle the valid bit */
8868 if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
8869 qe_valid = (qe_valid) ? 0 : 1;
8871 return pending_completions;
8876 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
8878 * @phba: Pointer to HBA context object.
8880 * For sli4, it is possible to miss an interrupt. As such mbox completions
8881 * maybe missed causing erroneous mailbox timeouts to occur. This function
8882 * checks to see if mbox completions are on the mailbox completion queue
8883 * and will process all the completions associated with the eq for the
8884 * mailbox completion queue.
8887 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
8889 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
8891 struct lpfc_queue *fpeq = NULL;
8892 struct lpfc_queue *eq;
8895 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
8898 /* Find the EQ associated with the mbox CQ */
8899 if (sli4_hba->hdwq) {
8900 for (eqidx = 0; eqidx < phba->cfg_irq_chann; eqidx++) {
8901 eq = phba->sli4_hba.hba_eq_hdl[eqidx].eq;
8902 if (eq && eq->queue_id == sli4_hba->mbx_cq->assoc_qid) {
8911 /* Turn off interrupts from this EQ */
8913 sli4_hba->sli4_eq_clr_intr(fpeq);
8915 /* Check to see if a mbox completion is pending */
8917 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
8920 * If a mbox completion is pending, process all the events on EQ
8921 * associated with the mbox completion queue (this could include
8922 * mailbox commands, async events, els commands, receive queue data
8927 /* process and rearm the EQ */
8928 lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM);
8930 /* Always clear and re-arm the EQ */
8931 sli4_hba->sli4_write_eq_db(phba, fpeq, 0, LPFC_QUEUE_REARM);
8933 return mbox_pending;
8938 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
8939 * @phba: Pointer to HBA context object.
8941 * This function is called from worker thread when a mailbox command times out.
8942 * The caller is not required to hold any locks. This function will reset the
8943 * HBA and recover all the pending commands.
8946 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
8948 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
8949 MAILBOX_t *mb = NULL;
8951 struct lpfc_sli *psli = &phba->sli;
8953 /* If the mailbox completed, process the completion */
8954 lpfc_sli4_process_missed_mbox_completions(phba);
8956 if (!(psli->sli_flag & LPFC_SLI_ACTIVE))
8961 /* Check the pmbox pointer first. There is a race condition
8962 * between the mbox timeout handler getting executed in the
8963 * worklist and the mailbox actually completing. When this
8964 * race condition occurs, the mbox_active will be NULL.
8966 spin_lock_irq(&phba->hbalock);
8967 if (pmbox == NULL) {
8968 lpfc_printf_log(phba, KERN_WARNING,
8970 "0353 Active Mailbox cleared - mailbox timeout "
8972 spin_unlock_irq(&phba->hbalock);
8976 /* Mbox cmd <mbxCommand> timeout */
8977 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8978 "0310 Mailbox command x%x timeout Data: x%x x%x x%px\n",
8980 phba->pport->port_state,
8982 phba->sli.mbox_active);
8983 spin_unlock_irq(&phba->hbalock);
8985 /* Setting state unknown so lpfc_sli_abort_iocb_ring
8986 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
8987 * it to fail all outstanding SCSI IO.
8989 spin_lock_irq(&phba->pport->work_port_lock);
8990 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8991 spin_unlock_irq(&phba->pport->work_port_lock);
8992 spin_lock_irq(&phba->hbalock);
8993 phba->link_state = LPFC_LINK_UNKNOWN;
8994 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8995 spin_unlock_irq(&phba->hbalock);
8997 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8998 "0345 Resetting board due to mailbox timeout\n");
9000 /* Reset the HBA device */
9001 lpfc_reset_hba(phba);
9005 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
9006 * @phba: Pointer to HBA context object.
9007 * @pmbox: Pointer to mailbox object.
9008 * @flag: Flag indicating how the mailbox need to be processed.
9010 * This function is called by discovery code and HBA management code
9011 * to submit a mailbox command to firmware with SLI-3 interface spec. This
9012 * function gets the hbalock to protect the data structures.
9013 * The mailbox command can be submitted in polling mode, in which case
9014 * this function will wait in a polling loop for the completion of the
9016 * If the mailbox is submitted in no_wait mode (not polling) the
9017 * function will submit the command and returns immediately without waiting
9018 * for the mailbox completion. The no_wait is supported only when HBA
9019 * is in SLI2/SLI3 mode - interrupts are enabled.
9020 * The SLI interface allows only one mailbox pending at a time. If the
9021 * mailbox is issued in polling mode and there is already a mailbox
9022 * pending, then the function will return an error. If the mailbox is issued
9023 * in NO_WAIT mode and there is a mailbox pending already, the function
9024 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
9025 * The sli layer owns the mailbox object until the completion of mailbox
9026 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
9027 * return codes the caller owns the mailbox command after the return of
9031 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
9035 struct lpfc_sli *psli = &phba->sli;
9036 uint32_t status, evtctr;
9037 uint32_t ha_copy, hc_copy;
9039 unsigned long timeout;
9040 unsigned long drvr_flag = 0;
9041 uint32_t word0, ldata;
9042 void __iomem *to_slim;
9043 int processing_queue = 0;
9045 spin_lock_irqsave(&phba->hbalock, drvr_flag);
9047 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9048 /* processing mbox queue from intr_handler */
9049 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
9050 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9053 processing_queue = 1;
9054 pmbox = lpfc_mbox_get(phba);
9056 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9061 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
9062 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
9064 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9065 lpfc_printf_log(phba, KERN_ERR,
9066 LOG_MBOX | LOG_VPORT,
9067 "1806 Mbox x%x failed. No vport\n",
9068 pmbox->u.mb.mbxCommand);
9070 goto out_not_finished;
9074 /* If the PCI channel is in offline state, do not post mbox. */
9075 if (unlikely(pci_channel_offline(phba->pcidev))) {
9076 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9077 goto out_not_finished;
9080 /* If HBA has a deferred error attention, fail the iocb. */
9081 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
9082 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9083 goto out_not_finished;
9089 status = MBX_SUCCESS;
9091 if (phba->link_state == LPFC_HBA_ERROR) {
9092 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9094 /* Mbox command <mbxCommand> cannot issue */
9095 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9096 "(%d):0311 Mailbox command x%x cannot "
9097 "issue Data: x%x x%x\n",
9098 pmbox->vport ? pmbox->vport->vpi : 0,
9099 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
9100 goto out_not_finished;
9103 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
9104 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
9105 !(hc_copy & HC_MBINT_ENA)) {
9106 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9107 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9108 "(%d):2528 Mailbox command x%x cannot "
9109 "issue Data: x%x x%x\n",
9110 pmbox->vport ? pmbox->vport->vpi : 0,
9111 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
9112 goto out_not_finished;
9116 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9117 /* Polling for a mbox command when another one is already active
9118 * is not allowed in SLI. Also, the driver must have established
9119 * SLI2 mode to queue and process multiple mbox commands.
9122 if (flag & MBX_POLL) {
9123 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9125 /* Mbox command <mbxCommand> cannot issue */
9126 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9127 "(%d):2529 Mailbox command x%x "
9128 "cannot issue Data: x%x x%x\n",
9129 pmbox->vport ? pmbox->vport->vpi : 0,
9130 pmbox->u.mb.mbxCommand,
9131 psli->sli_flag, flag);
9132 goto out_not_finished;
9135 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
9136 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9137 /* Mbox command <mbxCommand> cannot issue */
9138 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9139 "(%d):2530 Mailbox command x%x "
9140 "cannot issue Data: x%x x%x\n",
9141 pmbox->vport ? pmbox->vport->vpi : 0,
9142 pmbox->u.mb.mbxCommand,
9143 psli->sli_flag, flag);
9144 goto out_not_finished;
9147 /* Another mailbox command is still being processed, queue this
9148 * command to be processed later.
9150 lpfc_mbox_put(phba, pmbox);
9152 /* Mbox cmd issue - BUSY */
9153 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
9154 "(%d):0308 Mbox cmd issue - BUSY Data: "
9155 "x%x x%x x%x x%x\n",
9156 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
9158 phba->pport ? phba->pport->port_state : 0xff,
9159 psli->sli_flag, flag);
9161 psli->slistat.mbox_busy++;
9162 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9165 lpfc_debugfs_disc_trc(pmbox->vport,
9166 LPFC_DISC_TRC_MBOX_VPORT,
9167 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
9168 (uint32_t)mbx->mbxCommand,
9169 mbx->un.varWords[0], mbx->un.varWords[1]);
9172 lpfc_debugfs_disc_trc(phba->pport,
9174 "MBOX Bsy: cmd:x%x mb:x%x x%x",
9175 (uint32_t)mbx->mbxCommand,
9176 mbx->un.varWords[0], mbx->un.varWords[1]);
9182 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
9184 /* If we are not polling, we MUST be in SLI2 mode */
9185 if (flag != MBX_POLL) {
9186 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
9187 (mbx->mbxCommand != MBX_KILL_BOARD)) {
9188 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9189 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9190 /* Mbox command <mbxCommand> cannot issue */
9191 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9192 "(%d):2531 Mailbox command x%x "
9193 "cannot issue Data: x%x x%x\n",
9194 pmbox->vport ? pmbox->vport->vpi : 0,
9195 pmbox->u.mb.mbxCommand,
9196 psli->sli_flag, flag);
9197 goto out_not_finished;
9199 /* timeout active mbox command */
9200 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
9202 mod_timer(&psli->mbox_tmo, jiffies + timeout);
9205 /* Mailbox cmd <cmd> issue */
9206 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
9207 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
9209 pmbox->vport ? pmbox->vport->vpi : 0,
9211 phba->pport ? phba->pport->port_state : 0xff,
9212 psli->sli_flag, flag);
9214 if (mbx->mbxCommand != MBX_HEARTBEAT) {
9216 lpfc_debugfs_disc_trc(pmbox->vport,
9217 LPFC_DISC_TRC_MBOX_VPORT,
9218 "MBOX Send vport: cmd:x%x mb:x%x x%x",
9219 (uint32_t)mbx->mbxCommand,
9220 mbx->un.varWords[0], mbx->un.varWords[1]);
9223 lpfc_debugfs_disc_trc(phba->pport,
9225 "MBOX Send: cmd:x%x mb:x%x x%x",
9226 (uint32_t)mbx->mbxCommand,
9227 mbx->un.varWords[0], mbx->un.varWords[1]);
9231 psli->slistat.mbox_cmd++;
9232 evtctr = psli->slistat.mbox_event;
9234 /* next set own bit for the adapter and copy over command word */
9235 mbx->mbxOwner = OWN_CHIP;
9237 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9238 /* Populate mbox extension offset word. */
9239 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
9240 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
9241 = (uint8_t *)phba->mbox_ext
9242 - (uint8_t *)phba->mbox;
9245 /* Copy the mailbox extension data */
9246 if (pmbox->in_ext_byte_len && pmbox->ctx_buf) {
9247 lpfc_sli_pcimem_bcopy(pmbox->ctx_buf,
9248 (uint8_t *)phba->mbox_ext,
9249 pmbox->in_ext_byte_len);
9251 /* Copy command data to host SLIM area */
9252 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
9254 /* Populate mbox extension offset word. */
9255 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
9256 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
9257 = MAILBOX_HBA_EXT_OFFSET;
9259 /* Copy the mailbox extension data */
9260 if (pmbox->in_ext_byte_len && pmbox->ctx_buf)
9261 lpfc_memcpy_to_slim(phba->MBslimaddr +
9262 MAILBOX_HBA_EXT_OFFSET,
9263 pmbox->ctx_buf, pmbox->in_ext_byte_len);
9265 if (mbx->mbxCommand == MBX_CONFIG_PORT)
9266 /* copy command data into host mbox for cmpl */
9267 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
9270 /* First copy mbox command data to HBA SLIM, skip past first
9272 to_slim = phba->MBslimaddr + sizeof (uint32_t);
9273 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
9274 MAILBOX_CMD_SIZE - sizeof (uint32_t));
9276 /* Next copy over first word, with mbxOwner set */
9277 ldata = *((uint32_t *)mbx);
9278 to_slim = phba->MBslimaddr;
9279 writel(ldata, to_slim);
9280 readl(to_slim); /* flush */
9282 if (mbx->mbxCommand == MBX_CONFIG_PORT)
9283 /* switch over to host mailbox */
9284 psli->sli_flag |= LPFC_SLI_ACTIVE;
9291 /* Set up reference to mailbox command */
9292 psli->mbox_active = pmbox;
9293 /* Interrupt board to do it */
9294 writel(CA_MBATT, phba->CAregaddr);
9295 readl(phba->CAregaddr); /* flush */
9296 /* Don't wait for it to finish, just return */
9300 /* Set up null reference to mailbox command */
9301 psli->mbox_active = NULL;
9302 /* Interrupt board to do it */
9303 writel(CA_MBATT, phba->CAregaddr);
9304 readl(phba->CAregaddr); /* flush */
9306 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9307 /* First read mbox status word */
9308 word0 = *((uint32_t *)phba->mbox);
9309 word0 = le32_to_cpu(word0);
9311 /* First read mbox status word */
9312 if (lpfc_readl(phba->MBslimaddr, &word0)) {
9313 spin_unlock_irqrestore(&phba->hbalock,
9315 goto out_not_finished;
9319 /* Read the HBA Host Attention Register */
9320 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
9321 spin_unlock_irqrestore(&phba->hbalock,
9323 goto out_not_finished;
9325 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
9328 /* Wait for command to complete */
9329 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
9330 (!(ha_copy & HA_MBATT) &&
9331 (phba->link_state > LPFC_WARM_START))) {
9332 if (time_after(jiffies, timeout)) {
9333 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9334 spin_unlock_irqrestore(&phba->hbalock,
9336 goto out_not_finished;
9339 /* Check if we took a mbox interrupt while we were
9341 if (((word0 & OWN_CHIP) != OWN_CHIP)
9342 && (evtctr != psli->slistat.mbox_event))
9346 spin_unlock_irqrestore(&phba->hbalock,
9349 spin_lock_irqsave(&phba->hbalock, drvr_flag);
9352 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9353 /* First copy command data */
9354 word0 = *((uint32_t *)phba->mbox);
9355 word0 = le32_to_cpu(word0);
9356 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
9359 /* Check real SLIM for any errors */
9360 slimword0 = readl(phba->MBslimaddr);
9361 slimmb = (MAILBOX_t *) & slimword0;
9362 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
9363 && slimmb->mbxStatus) {
9370 /* First copy command data */
9371 word0 = readl(phba->MBslimaddr);
9373 /* Read the HBA Host Attention Register */
9374 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
9375 spin_unlock_irqrestore(&phba->hbalock,
9377 goto out_not_finished;
9381 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9382 /* copy results back to user */
9383 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
9385 /* Copy the mailbox extension data */
9386 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
9387 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
9389 pmbox->out_ext_byte_len);
9392 /* First copy command data */
9393 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
9395 /* Copy the mailbox extension data */
9396 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
9397 lpfc_memcpy_from_slim(
9400 MAILBOX_HBA_EXT_OFFSET,
9401 pmbox->out_ext_byte_len);
9405 writel(HA_MBATT, phba->HAregaddr);
9406 readl(phba->HAregaddr); /* flush */
9408 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9409 status = mbx->mbxStatus;
9412 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9416 if (processing_queue) {
9417 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
9418 lpfc_mbox_cmpl_put(phba, pmbox);
9420 return MBX_NOT_FINISHED;
9424 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
9425 * @phba: Pointer to HBA context object.
9427 * The function blocks the posting of SLI4 asynchronous mailbox commands from
9428 * the driver internal pending mailbox queue. It will then try to wait out the
9429 * possible outstanding mailbox command before return.
9432 * 0 - the outstanding mailbox command completed; otherwise, the wait for
9433 * the outstanding mailbox command timed out.
9436 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
9438 struct lpfc_sli *psli = &phba->sli;
9439 LPFC_MBOXQ_t *mboxq;
9441 unsigned long timeout = 0;
9443 u8 cmd, subsys, opcode;
9445 /* Mark the asynchronous mailbox command posting as blocked */
9446 spin_lock_irq(&phba->hbalock);
9447 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9448 /* Determine how long we might wait for the active mailbox
9449 * command to be gracefully completed by firmware.
9451 if (phba->sli.mbox_active)
9452 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
9453 phba->sli.mbox_active) *
9455 spin_unlock_irq(&phba->hbalock);
9457 /* Make sure the mailbox is really active */
9459 lpfc_sli4_process_missed_mbox_completions(phba);
9461 /* Wait for the outstanding mailbox command to complete */
9462 while (phba->sli.mbox_active) {
9463 /* Check active mailbox complete status every 2ms */
9465 if (time_after(jiffies, timeout)) {
9466 /* Timeout, mark the outstanding cmd not complete */
9468 /* Sanity check sli.mbox_active has not completed or
9469 * cancelled from another context during last 2ms sleep,
9470 * so take hbalock to be sure before logging.
9472 spin_lock_irq(&phba->hbalock);
9473 if (phba->sli.mbox_active) {
9474 mboxq = phba->sli.mbox_active;
9475 cmd = mboxq->u.mb.mbxCommand;
9476 subsys = lpfc_sli_config_mbox_subsys_get(phba,
9478 opcode = lpfc_sli_config_mbox_opcode_get(phba,
9480 sli_flag = psli->sli_flag;
9481 spin_unlock_irq(&phba->hbalock);
9482 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9483 "2352 Mailbox command x%x "
9484 "(x%x/x%x) sli_flag x%x could "
9486 cmd, subsys, opcode,
9489 spin_unlock_irq(&phba->hbalock);
9497 /* Can not cleanly block async mailbox command, fails it */
9499 spin_lock_irq(&phba->hbalock);
9500 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
9501 spin_unlock_irq(&phba->hbalock);
9507 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
9508 * @phba: Pointer to HBA context object.
9510 * The function unblocks and resume posting of SLI4 asynchronous mailbox
9511 * commands from the driver internal pending mailbox queue. It makes sure
9512 * that there is no outstanding mailbox command before resuming posting
9513 * asynchronous mailbox commands. If, for any reason, there is outstanding
9514 * mailbox command, it will try to wait it out before resuming asynchronous
9515 * mailbox command posting.
9518 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
9520 struct lpfc_sli *psli = &phba->sli;
9522 spin_lock_irq(&phba->hbalock);
9523 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
9524 /* Asynchronous mailbox posting is not blocked, do nothing */
9525 spin_unlock_irq(&phba->hbalock);
9529 /* Outstanding synchronous mailbox command is guaranteed to be done,
9530 * successful or timeout, after timing-out the outstanding mailbox
9531 * command shall always be removed, so just unblock posting async
9532 * mailbox command and resume
9534 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
9535 spin_unlock_irq(&phba->hbalock);
9537 /* wake up worker thread to post asynchronous mailbox command */
9538 lpfc_worker_wake_up(phba);
9542 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
9543 * @phba: Pointer to HBA context object.
9544 * @mboxq: Pointer to mailbox object.
9546 * The function waits for the bootstrap mailbox register ready bit from
9547 * port for twice the regular mailbox command timeout value.
9549 * 0 - no timeout on waiting for bootstrap mailbox register ready.
9550 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
9553 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9556 unsigned long timeout;
9557 struct lpfc_register bmbx_reg;
9559 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
9563 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
9564 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
9568 if (time_after(jiffies, timeout))
9569 return MBXERR_ERROR;
9570 } while (!db_ready);
9576 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
9577 * @phba: Pointer to HBA context object.
9578 * @mboxq: Pointer to mailbox object.
9580 * The function posts a mailbox to the port. The mailbox is expected
9581 * to be comletely filled in and ready for the port to operate on it.
9582 * This routine executes a synchronous completion operation on the
9583 * mailbox by polling for its completion.
9585 * The caller must not be holding any locks when calling this routine.
9588 * MBX_SUCCESS - mailbox posted successfully
9589 * Any of the MBX error values.
9592 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9594 int rc = MBX_SUCCESS;
9595 unsigned long iflag;
9596 uint32_t mcqe_status;
9598 struct lpfc_sli *psli = &phba->sli;
9599 struct lpfc_mqe *mb = &mboxq->u.mqe;
9600 struct lpfc_bmbx_create *mbox_rgn;
9601 struct dma_address *dma_address;
9604 * Only one mailbox can be active to the bootstrap mailbox region
9605 * at a time and there is no queueing provided.
9607 spin_lock_irqsave(&phba->hbalock, iflag);
9608 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9609 spin_unlock_irqrestore(&phba->hbalock, iflag);
9610 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9611 "(%d):2532 Mailbox command x%x (x%x/x%x) "
9612 "cannot issue Data: x%x x%x\n",
9613 mboxq->vport ? mboxq->vport->vpi : 0,
9614 mboxq->u.mb.mbxCommand,
9615 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9616 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9617 psli->sli_flag, MBX_POLL);
9618 return MBXERR_ERROR;
9620 /* The server grabs the token and owns it until release */
9621 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
9622 phba->sli.mbox_active = mboxq;
9623 spin_unlock_irqrestore(&phba->hbalock, iflag);
9625 /* wait for bootstrap mbox register for readyness */
9626 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
9630 * Initialize the bootstrap memory region to avoid stale data areas
9631 * in the mailbox post. Then copy the caller's mailbox contents to
9632 * the bmbx mailbox region.
9634 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
9635 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
9636 lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
9637 sizeof(struct lpfc_mqe));
9639 /* Post the high mailbox dma address to the port and wait for ready. */
9640 dma_address = &phba->sli4_hba.bmbx.dma_address;
9641 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
9643 /* wait for bootstrap mbox register for hi-address write done */
9644 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
9648 /* Post the low mailbox dma address to the port. */
9649 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
9651 /* wait for bootstrap mbox register for low address write done */
9652 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
9657 * Read the CQ to ensure the mailbox has completed.
9658 * If so, update the mailbox status so that the upper layers
9659 * can complete the request normally.
9661 lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
9662 sizeof(struct lpfc_mqe));
9663 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
9664 lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
9665 sizeof(struct lpfc_mcqe));
9666 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
9668 * When the CQE status indicates a failure and the mailbox status
9669 * indicates success then copy the CQE status into the mailbox status
9670 * (and prefix it with x4000).
9672 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
9673 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
9674 bf_set(lpfc_mqe_status, mb,
9675 (LPFC_MBX_ERROR_RANGE | mcqe_status));
9678 lpfc_sli4_swap_str(phba, mboxq);
9680 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
9681 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
9682 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
9683 " x%x x%x CQ: x%x x%x x%x x%x\n",
9684 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
9685 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9686 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9687 bf_get(lpfc_mqe_status, mb),
9688 mb->un.mb_words[0], mb->un.mb_words[1],
9689 mb->un.mb_words[2], mb->un.mb_words[3],
9690 mb->un.mb_words[4], mb->un.mb_words[5],
9691 mb->un.mb_words[6], mb->un.mb_words[7],
9692 mb->un.mb_words[8], mb->un.mb_words[9],
9693 mb->un.mb_words[10], mb->un.mb_words[11],
9694 mb->un.mb_words[12], mboxq->mcqe.word0,
9695 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
9696 mboxq->mcqe.trailer);
9698 /* We are holding the token, no needed for lock when release */
9699 spin_lock_irqsave(&phba->hbalock, iflag);
9700 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9701 phba->sli.mbox_active = NULL;
9702 spin_unlock_irqrestore(&phba->hbalock, iflag);
9707 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
9708 * @phba: Pointer to HBA context object.
9709 * @mboxq: Pointer to mailbox object.
9710 * @flag: Flag indicating how the mailbox need to be processed.
9712 * This function is called by discovery code and HBA management code to submit
9713 * a mailbox command to firmware with SLI-4 interface spec.
9715 * Return codes the caller owns the mailbox command after the return of the
9719 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
9722 struct lpfc_sli *psli = &phba->sli;
9723 unsigned long iflags;
9726 /* dump from issue mailbox command if setup */
9727 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
9729 rc = lpfc_mbox_dev_check(phba);
9731 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9732 "(%d):2544 Mailbox command x%x (x%x/x%x) "
9733 "cannot issue Data: x%x x%x\n",
9734 mboxq->vport ? mboxq->vport->vpi : 0,
9735 mboxq->u.mb.mbxCommand,
9736 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9737 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9738 psli->sli_flag, flag);
9739 goto out_not_finished;
9742 /* Detect polling mode and jump to a handler */
9743 if (!phba->sli4_hba.intr_enable) {
9744 if (flag == MBX_POLL)
9745 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
9748 if (rc != MBX_SUCCESS)
9749 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
9750 "(%d):2541 Mailbox command x%x "
9751 "(x%x/x%x) failure: "
9752 "mqe_sta: x%x mcqe_sta: x%x/x%x "
9754 mboxq->vport ? mboxq->vport->vpi : 0,
9755 mboxq->u.mb.mbxCommand,
9756 lpfc_sli_config_mbox_subsys_get(phba,
9758 lpfc_sli_config_mbox_opcode_get(phba,
9760 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
9761 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
9762 bf_get(lpfc_mcqe_ext_status,
9764 psli->sli_flag, flag);
9766 } else if (flag == MBX_POLL) {
9767 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
9768 "(%d):2542 Try to issue mailbox command "
9769 "x%x (x%x/x%x) synchronously ahead of async "
9770 "mailbox command queue: x%x x%x\n",
9771 mboxq->vport ? mboxq->vport->vpi : 0,
9772 mboxq->u.mb.mbxCommand,
9773 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9774 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9775 psli->sli_flag, flag);
9776 /* Try to block the asynchronous mailbox posting */
9777 rc = lpfc_sli4_async_mbox_block(phba);
9779 /* Successfully blocked, now issue sync mbox cmd */
9780 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
9781 if (rc != MBX_SUCCESS)
9782 lpfc_printf_log(phba, KERN_WARNING,
9784 "(%d):2597 Sync Mailbox command "
9785 "x%x (x%x/x%x) failure: "
9786 "mqe_sta: x%x mcqe_sta: x%x/x%x "
9788 mboxq->vport ? mboxq->vport->vpi : 0,
9789 mboxq->u.mb.mbxCommand,
9790 lpfc_sli_config_mbox_subsys_get(phba,
9792 lpfc_sli_config_mbox_opcode_get(phba,
9794 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
9795 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
9796 bf_get(lpfc_mcqe_ext_status,
9798 psli->sli_flag, flag);
9799 /* Unblock the async mailbox posting afterward */
9800 lpfc_sli4_async_mbox_unblock(phba);
9805 /* Now, interrupt mode asynchronous mailbox command */
9806 rc = lpfc_mbox_cmd_check(phba, mboxq);
9808 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9809 "(%d):2543 Mailbox command x%x (x%x/x%x) "
9810 "cannot issue Data: x%x x%x\n",
9811 mboxq->vport ? mboxq->vport->vpi : 0,
9812 mboxq->u.mb.mbxCommand,
9813 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9814 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9815 psli->sli_flag, flag);
9816 goto out_not_finished;
9819 /* Put the mailbox command to the driver internal FIFO */
9820 psli->slistat.mbox_busy++;
9821 spin_lock_irqsave(&phba->hbalock, iflags);
9822 lpfc_mbox_put(phba, mboxq);
9823 spin_unlock_irqrestore(&phba->hbalock, iflags);
9824 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
9825 "(%d):0354 Mbox cmd issue - Enqueue Data: "
9826 "x%x (x%x/x%x) x%x x%x x%x\n",
9827 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
9828 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
9829 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9830 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9831 phba->pport->port_state,
9832 psli->sli_flag, MBX_NOWAIT);
9833 /* Wake up worker thread to transport mailbox command from head */
9834 lpfc_worker_wake_up(phba);
9839 return MBX_NOT_FINISHED;
9843 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
9844 * @phba: Pointer to HBA context object.
9846 * This function is called by worker thread to send a mailbox command to
9847 * SLI4 HBA firmware.
9851 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
9853 struct lpfc_sli *psli = &phba->sli;
9854 LPFC_MBOXQ_t *mboxq;
9855 int rc = MBX_SUCCESS;
9856 unsigned long iflags;
9857 struct lpfc_mqe *mqe;
9860 /* Check interrupt mode before post async mailbox command */
9861 if (unlikely(!phba->sli4_hba.intr_enable))
9862 return MBX_NOT_FINISHED;
9864 /* Check for mailbox command service token */
9865 spin_lock_irqsave(&phba->hbalock, iflags);
9866 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
9867 spin_unlock_irqrestore(&phba->hbalock, iflags);
9868 return MBX_NOT_FINISHED;
9870 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9871 spin_unlock_irqrestore(&phba->hbalock, iflags);
9872 return MBX_NOT_FINISHED;
9874 if (unlikely(phba->sli.mbox_active)) {
9875 spin_unlock_irqrestore(&phba->hbalock, iflags);
9876 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9877 "0384 There is pending active mailbox cmd\n");
9878 return MBX_NOT_FINISHED;
9880 /* Take the mailbox command service token */
9881 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
9883 /* Get the next mailbox command from head of queue */
9884 mboxq = lpfc_mbox_get(phba);
9886 /* If no more mailbox command waiting for post, we're done */
9888 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9889 spin_unlock_irqrestore(&phba->hbalock, iflags);
9892 phba->sli.mbox_active = mboxq;
9893 spin_unlock_irqrestore(&phba->hbalock, iflags);
9895 /* Check device readiness for posting mailbox command */
9896 rc = lpfc_mbox_dev_check(phba);
9898 /* Driver clean routine will clean up pending mailbox */
9899 goto out_not_finished;
9901 /* Prepare the mbox command to be posted */
9902 mqe = &mboxq->u.mqe;
9903 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
9905 /* Start timer for the mbox_tmo and log some mailbox post messages */
9906 mod_timer(&psli->mbox_tmo, (jiffies +
9907 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
9909 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
9910 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
9912 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
9913 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9914 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9915 phba->pport->port_state, psli->sli_flag);
9917 if (mbx_cmnd != MBX_HEARTBEAT) {
9919 lpfc_debugfs_disc_trc(mboxq->vport,
9920 LPFC_DISC_TRC_MBOX_VPORT,
9921 "MBOX Send vport: cmd:x%x mb:x%x x%x",
9922 mbx_cmnd, mqe->un.mb_words[0],
9923 mqe->un.mb_words[1]);
9925 lpfc_debugfs_disc_trc(phba->pport,
9927 "MBOX Send: cmd:x%x mb:x%x x%x",
9928 mbx_cmnd, mqe->un.mb_words[0],
9929 mqe->un.mb_words[1]);
9932 psli->slistat.mbox_cmd++;
9934 /* Post the mailbox command to the port */
9935 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
9936 if (rc != MBX_SUCCESS) {
9937 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9938 "(%d):2533 Mailbox command x%x (x%x/x%x) "
9939 "cannot issue Data: x%x x%x\n",
9940 mboxq->vport ? mboxq->vport->vpi : 0,
9941 mboxq->u.mb.mbxCommand,
9942 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9943 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9944 psli->sli_flag, MBX_NOWAIT);
9945 goto out_not_finished;
9951 spin_lock_irqsave(&phba->hbalock, iflags);
9952 if (phba->sli.mbox_active) {
9953 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9954 __lpfc_mbox_cmpl_put(phba, mboxq);
9955 /* Release the token */
9956 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9957 phba->sli.mbox_active = NULL;
9959 spin_unlock_irqrestore(&phba->hbalock, iflags);
9961 return MBX_NOT_FINISHED;
9965 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
9966 * @phba: Pointer to HBA context object.
9967 * @pmbox: Pointer to mailbox object.
9968 * @flag: Flag indicating how the mailbox need to be processed.
9970 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
9971 * the API jump table function pointer from the lpfc_hba struct.
9973 * Return codes the caller owns the mailbox command after the return of the
9977 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
9979 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
9983 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
9984 * @phba: The hba struct for which this call is being executed.
9985 * @dev_grp: The HBA PCI-Device group number.
9987 * This routine sets up the mbox interface API function jump table in @phba
9989 * Returns: 0 - success, -ENODEV - failure.
9992 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9996 case LPFC_PCI_DEV_LP:
9997 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
9998 phba->lpfc_sli_handle_slow_ring_event =
9999 lpfc_sli_handle_slow_ring_event_s3;
10000 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
10001 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
10002 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
10004 case LPFC_PCI_DEV_OC:
10005 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
10006 phba->lpfc_sli_handle_slow_ring_event =
10007 lpfc_sli_handle_slow_ring_event_s4;
10008 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
10009 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
10010 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
10013 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10014 "1420 Invalid HBA PCI-device group: 0x%x\n",
10022 * __lpfc_sli_ringtx_put - Add an iocb to the txq
10023 * @phba: Pointer to HBA context object.
10024 * @pring: Pointer to driver SLI ring object.
10025 * @piocb: Pointer to address of newly added command iocb.
10027 * This function is called with hbalock held for SLI3 ports or
10028 * the ring lock held for SLI4 ports to add a command
10029 * iocb to the txq when SLI layer cannot submit the command iocb
10033 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10034 struct lpfc_iocbq *piocb)
10036 if (phba->sli_rev == LPFC_SLI_REV4)
10037 lockdep_assert_held(&pring->ring_lock);
10039 lockdep_assert_held(&phba->hbalock);
10040 /* Insert the caller's iocb in the txq tail for later processing. */
10041 list_add_tail(&piocb->list, &pring->txq);
10045 * lpfc_sli_next_iocb - Get the next iocb in the txq
10046 * @phba: Pointer to HBA context object.
10047 * @pring: Pointer to driver SLI ring object.
10048 * @piocb: Pointer to address of newly added command iocb.
10050 * This function is called with hbalock held before a new
10051 * iocb is submitted to the firmware. This function checks
10052 * txq to flush the iocbs in txq to Firmware before
10053 * submitting new iocbs to the Firmware.
10054 * If there are iocbs in the txq which need to be submitted
10055 * to firmware, lpfc_sli_next_iocb returns the first element
10056 * of the txq after dequeuing it from txq.
10057 * If there is no iocb in the txq then the function will return
10058 * *piocb and *piocb is set to NULL. Caller needs to check
10059 * *piocb to find if there are more commands in the txq.
10061 static struct lpfc_iocbq *
10062 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10063 struct lpfc_iocbq **piocb)
10065 struct lpfc_iocbq * nextiocb;
10067 lockdep_assert_held(&phba->hbalock);
10069 nextiocb = lpfc_sli_ringtx_get(phba, pring);
10079 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
10080 * @phba: Pointer to HBA context object.
10081 * @ring_number: SLI ring number to issue iocb on.
10082 * @piocb: Pointer to command iocb.
10083 * @flag: Flag indicating if this command can be put into txq.
10085 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
10086 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
10087 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
10088 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
10089 * this function allows only iocbs for posting buffers. This function finds
10090 * next available slot in the command ring and posts the command to the
10091 * available slot and writes the port attention register to request HBA start
10092 * processing new iocb. If there is no slot available in the ring and
10093 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
10094 * the function returns IOCB_BUSY.
10096 * This function is called with hbalock held. The function will return success
10097 * after it successfully submit the iocb to firmware or after adding to the
10101 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
10102 struct lpfc_iocbq *piocb, uint32_t flag)
10104 struct lpfc_iocbq *nextiocb;
10106 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
10108 lockdep_assert_held(&phba->hbalock);
10110 if (piocb->iocb_cmpl && (!piocb->vport) &&
10111 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
10112 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
10113 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10114 "1807 IOCB x%x failed. No vport\n",
10115 piocb->iocb.ulpCommand);
10121 /* If the PCI channel is in offline state, do not post iocbs. */
10122 if (unlikely(pci_channel_offline(phba->pcidev)))
10125 /* If HBA has a deferred error attention, fail the iocb. */
10126 if (unlikely(phba->hba_flag & DEFER_ERATT))
10130 * We should never get an IOCB if we are in a < LINK_DOWN state
10132 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10136 * Check to see if we are blocking IOCB processing because of a
10137 * outstanding event.
10139 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
10142 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
10144 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
10145 * can be issued if the link is not up.
10147 switch (piocb->iocb.ulpCommand) {
10148 case CMD_GEN_REQUEST64_CR:
10149 case CMD_GEN_REQUEST64_CX:
10150 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
10151 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
10152 FC_RCTL_DD_UNSOL_CMD) ||
10153 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
10154 MENLO_TRANSPORT_TYPE))
10158 case CMD_QUE_RING_BUF_CN:
10159 case CMD_QUE_RING_BUF64_CN:
10161 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
10162 * completion, iocb_cmpl MUST be 0.
10164 if (piocb->iocb_cmpl)
10165 piocb->iocb_cmpl = NULL;
10167 case CMD_CREATE_XRI_CR:
10168 case CMD_CLOSE_XRI_CN:
10169 case CMD_CLOSE_XRI_CX:
10176 * For FCP commands, we must be in a state where we can process link
10177 * attention events.
10179 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
10180 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
10184 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
10185 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
10186 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
10189 lpfc_sli_update_ring(phba, pring);
10191 lpfc_sli_update_full_ring(phba, pring);
10194 return IOCB_SUCCESS;
10199 pring->stats.iocb_cmd_delay++;
10203 if (!(flag & SLI_IOCB_RET_IOCB)) {
10204 __lpfc_sli_ringtx_put(phba, pring, piocb);
10205 return IOCB_SUCCESS;
10212 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
10213 * @phba: Pointer to HBA context object.
10214 * @piocbq: Pointer to command iocb.
10215 * @sglq: Pointer to the scatter gather queue object.
10217 * This routine converts the bpl or bde that is in the IOCB
10218 * to a sgl list for the sli4 hardware. The physical address
10219 * of the bpl/bde is converted back to a virtual address.
10220 * If the IOCB contains a BPL then the list of BDE's is
10221 * converted to sli4_sge's. If the IOCB contains a single
10222 * BDE then it is converted to a single sli_sge.
10223 * The IOCB is still in cpu endianess so the contents of
10224 * the bpl can be used without byte swapping.
10226 * Returns valid XRI = Success, NO_XRI = Failure.
10229 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
10230 struct lpfc_sglq *sglq)
10232 uint16_t xritag = NO_XRI;
10233 struct ulp_bde64 *bpl = NULL;
10234 struct ulp_bde64 bde;
10235 struct sli4_sge *sgl = NULL;
10236 struct lpfc_dmabuf *dmabuf;
10240 uint32_t offset = 0; /* accumulated offset in the sg request list */
10241 int inbound = 0; /* number of sg reply entries inbound from firmware */
10243 if (!piocbq || !sglq)
10246 sgl = (struct sli4_sge *)sglq->sgl;
10247 icmd = &piocbq->iocb;
10248 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
10249 return sglq->sli4_xritag;
10250 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
10251 numBdes = icmd->un.genreq64.bdl.bdeSize /
10252 sizeof(struct ulp_bde64);
10253 /* The addrHigh and addrLow fields within the IOCB
10254 * have not been byteswapped yet so there is no
10255 * need to swap them back.
10257 if (piocbq->context3)
10258 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
10262 bpl = (struct ulp_bde64 *)dmabuf->virt;
10266 for (i = 0; i < numBdes; i++) {
10267 /* Should already be byte swapped. */
10268 sgl->addr_hi = bpl->addrHigh;
10269 sgl->addr_lo = bpl->addrLow;
10271 sgl->word2 = le32_to_cpu(sgl->word2);
10272 if ((i+1) == numBdes)
10273 bf_set(lpfc_sli4_sge_last, sgl, 1);
10275 bf_set(lpfc_sli4_sge_last, sgl, 0);
10276 /* swap the size field back to the cpu so we
10277 * can assign it to the sgl.
10279 bde.tus.w = le32_to_cpu(bpl->tus.w);
10280 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
10281 /* The offsets in the sgl need to be accumulated
10282 * separately for the request and reply lists.
10283 * The request is always first, the reply follows.
10285 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
10286 /* add up the reply sg entries */
10287 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
10289 /* first inbound? reset the offset */
10292 bf_set(lpfc_sli4_sge_offset, sgl, offset);
10293 bf_set(lpfc_sli4_sge_type, sgl,
10294 LPFC_SGE_TYPE_DATA);
10295 offset += bde.tus.f.bdeSize;
10297 sgl->word2 = cpu_to_le32(sgl->word2);
10301 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
10302 /* The addrHigh and addrLow fields of the BDE have not
10303 * been byteswapped yet so they need to be swapped
10304 * before putting them in the sgl.
10307 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
10309 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
10310 sgl->word2 = le32_to_cpu(sgl->word2);
10311 bf_set(lpfc_sli4_sge_last, sgl, 1);
10312 sgl->word2 = cpu_to_le32(sgl->word2);
10314 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
10316 return sglq->sli4_xritag;
10320 * lpfc_sli4_iocb2wqe - Convert the IOCB to a work queue entry.
10321 * @phba: Pointer to HBA context object.
10322 * @iocbq: Pointer to command iocb.
10323 * @wqe: Pointer to the work queue entry.
10325 * This routine converts the iocb command to its Work Queue Entry
10326 * equivalent. The wqe pointer should not have any fields set when
10327 * this routine is called because it will memcpy over them.
10328 * This routine does not set the CQ_ID or the WQEC bits in the
10331 * Returns: 0 = Success, IOCB_ERROR = Failure.
10334 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
10335 union lpfc_wqe128 *wqe)
10337 uint32_t xmit_len = 0, total_len = 0;
10340 uint32_t abort_tag;
10341 uint8_t command_type = ELS_COMMAND_NON_FIP;
10344 uint16_t abrt_iotag;
10345 struct lpfc_iocbq *abrtiocbq;
10346 struct ulp_bde64 *bpl = NULL;
10347 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
10349 struct ulp_bde64 bde;
10350 struct lpfc_nodelist *ndlp;
10354 fip = phba->hba_flag & HBA_FIP_SUPPORT;
10355 /* The fcp commands will set command type */
10356 if (iocbq->iocb_flag & LPFC_IO_FCP)
10357 command_type = FCP_COMMAND;
10358 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
10359 command_type = ELS_COMMAND_FIP;
10361 command_type = ELS_COMMAND_NON_FIP;
10363 if (phba->fcp_embed_io)
10364 memset(wqe, 0, sizeof(union lpfc_wqe128));
10365 /* Some of the fields are in the right position already */
10366 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
10367 /* The ct field has moved so reset */
10368 wqe->generic.wqe_com.word7 = 0;
10369 wqe->generic.wqe_com.word10 = 0;
10371 abort_tag = (uint32_t) iocbq->iotag;
10372 xritag = iocbq->sli4_xritag;
10373 /* words0-2 bpl convert bde */
10374 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
10375 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
10376 sizeof(struct ulp_bde64);
10377 bpl = (struct ulp_bde64 *)
10378 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
10382 /* Should already be byte swapped. */
10383 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
10384 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
10385 /* swap the size field back to the cpu so we
10386 * can assign it to the sgl.
10388 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
10389 xmit_len = wqe->generic.bde.tus.f.bdeSize;
10391 for (i = 0; i < numBdes; i++) {
10392 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
10393 total_len += bde.tus.f.bdeSize;
10396 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
10398 iocbq->iocb.ulpIoTag = iocbq->iotag;
10399 cmnd = iocbq->iocb.ulpCommand;
10401 switch (iocbq->iocb.ulpCommand) {
10402 case CMD_ELS_REQUEST64_CR:
10403 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
10404 ndlp = iocbq->context_un.ndlp;
10406 ndlp = (struct lpfc_nodelist *)iocbq->context1;
10407 if (!iocbq->iocb.ulpLe) {
10408 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10409 "2007 Only Limited Edition cmd Format"
10410 " supported 0x%x\n",
10411 iocbq->iocb.ulpCommand);
10415 wqe->els_req.payload_len = xmit_len;
10416 /* Els_reguest64 has a TMO */
10417 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
10418 iocbq->iocb.ulpTimeout);
10419 /* Need a VF for word 4 set the vf bit*/
10420 bf_set(els_req64_vf, &wqe->els_req, 0);
10421 /* And a VFID for word 12 */
10422 bf_set(els_req64_vfid, &wqe->els_req, 0);
10423 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
10424 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
10425 iocbq->iocb.ulpContext);
10426 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
10427 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
10428 /* CCP CCPE PV PRI in word10 were set in the memcpy */
10429 if (command_type == ELS_COMMAND_FIP)
10430 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
10431 >> LPFC_FIP_ELS_ID_SHIFT);
10432 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
10433 iocbq->context2)->virt);
10434 if_type = bf_get(lpfc_sli_intf_if_type,
10435 &phba->sli4_hba.sli_intf);
10436 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10437 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
10438 *pcmd == ELS_CMD_SCR ||
10439 *pcmd == ELS_CMD_RDF ||
10440 *pcmd == ELS_CMD_EDC ||
10441 *pcmd == ELS_CMD_RSCN_XMT ||
10442 *pcmd == ELS_CMD_FDISC ||
10443 *pcmd == ELS_CMD_LOGO ||
10444 *pcmd == ELS_CMD_QFPA ||
10445 *pcmd == ELS_CMD_UVEM ||
10446 *pcmd == ELS_CMD_PLOGI)) {
10447 bf_set(els_req64_sp, &wqe->els_req, 1);
10448 bf_set(els_req64_sid, &wqe->els_req,
10449 iocbq->vport->fc_myDID);
10450 if ((*pcmd == ELS_CMD_FLOGI) &&
10451 !(phba->fc_topology ==
10452 LPFC_TOPOLOGY_LOOP))
10453 bf_set(els_req64_sid, &wqe->els_req, 0);
10454 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
10455 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
10456 phba->vpi_ids[iocbq->vport->vpi]);
10457 } else if (pcmd && iocbq->context1) {
10458 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
10459 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
10460 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
10463 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
10464 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
10465 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
10466 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
10467 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
10468 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
10469 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
10470 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
10471 wqe->els_req.max_response_payload_len = total_len - xmit_len;
10473 case CMD_XMIT_SEQUENCE64_CX:
10474 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
10475 iocbq->iocb.un.ulpWord[3]);
10476 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
10477 iocbq->iocb.unsli3.rcvsli3.ox_id);
10478 /* The entire sequence is transmitted for this IOCB */
10479 xmit_len = total_len;
10480 cmnd = CMD_XMIT_SEQUENCE64_CR;
10481 if (phba->link_flag & LS_LOOPBACK_MODE)
10482 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
10484 case CMD_XMIT_SEQUENCE64_CR:
10485 /* word3 iocb=io_tag32 wqe=reserved */
10486 wqe->xmit_sequence.rsvd3 = 0;
10487 /* word4 relative_offset memcpy */
10488 /* word5 r_ctl/df_ctl memcpy */
10489 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
10490 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
10491 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
10492 LPFC_WQE_IOD_WRITE);
10493 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
10494 LPFC_WQE_LENLOC_WORD12);
10495 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
10496 wqe->xmit_sequence.xmit_len = xmit_len;
10497 command_type = OTHER_COMMAND;
10499 case CMD_XMIT_BCAST64_CN:
10500 /* word3 iocb=iotag32 wqe=seq_payload_len */
10501 wqe->xmit_bcast64.seq_payload_len = xmit_len;
10502 /* word4 iocb=rsvd wqe=rsvd */
10503 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
10504 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
10505 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
10506 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
10507 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
10508 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
10509 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
10510 LPFC_WQE_LENLOC_WORD3);
10511 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
10513 case CMD_FCP_IWRITE64_CR:
10514 command_type = FCP_COMMAND_DATA_OUT;
10515 /* word3 iocb=iotag wqe=payload_offset_len */
10516 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
10517 bf_set(payload_offset_len, &wqe->fcp_iwrite,
10518 xmit_len + sizeof(struct fcp_rsp));
10519 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
10521 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
10522 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
10523 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
10524 iocbq->iocb.ulpFCP2Rcvy);
10525 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
10526 /* Always open the exchange */
10527 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
10528 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
10529 LPFC_WQE_LENLOC_WORD4);
10530 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
10531 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
10532 if (iocbq->iocb_flag & LPFC_IO_OAS) {
10533 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
10534 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
10535 if (iocbq->priority) {
10536 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
10537 (iocbq->priority << 1));
10539 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
10540 (phba->cfg_XLanePriority << 1));
10543 /* Note, word 10 is already initialized to 0 */
10545 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
10546 if (phba->cfg_enable_pbde)
10547 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 1);
10549 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
10551 if (phba->fcp_embed_io) {
10552 struct lpfc_io_buf *lpfc_cmd;
10553 struct sli4_sge *sgl;
10554 struct fcp_cmnd *fcp_cmnd;
10557 /* 128 byte wqe support here */
10559 lpfc_cmd = iocbq->context1;
10560 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
10561 fcp_cmnd = lpfc_cmd->fcp_cmnd;
10563 /* Word 0-2 - FCP_CMND */
10564 wqe->generic.bde.tus.f.bdeFlags =
10565 BUFF_TYPE_BDE_IMMED;
10566 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
10567 wqe->generic.bde.addrHigh = 0;
10568 wqe->generic.bde.addrLow = 88; /* Word 22 */
10570 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
10571 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
10573 /* Word 22-29 FCP CMND Payload */
10574 ptr = &wqe->words[22];
10575 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
10578 case CMD_FCP_IREAD64_CR:
10579 /* word3 iocb=iotag wqe=payload_offset_len */
10580 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
10581 bf_set(payload_offset_len, &wqe->fcp_iread,
10582 xmit_len + sizeof(struct fcp_rsp));
10583 bf_set(cmd_buff_len, &wqe->fcp_iread,
10585 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
10586 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
10587 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
10588 iocbq->iocb.ulpFCP2Rcvy);
10589 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
10590 /* Always open the exchange */
10591 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
10592 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
10593 LPFC_WQE_LENLOC_WORD4);
10594 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
10595 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
10596 if (iocbq->iocb_flag & LPFC_IO_OAS) {
10597 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
10598 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
10599 if (iocbq->priority) {
10600 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
10601 (iocbq->priority << 1));
10603 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
10604 (phba->cfg_XLanePriority << 1));
10607 /* Note, word 10 is already initialized to 0 */
10609 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
10610 if (phba->cfg_enable_pbde)
10611 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 1);
10613 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
10615 if (phba->fcp_embed_io) {
10616 struct lpfc_io_buf *lpfc_cmd;
10617 struct sli4_sge *sgl;
10618 struct fcp_cmnd *fcp_cmnd;
10621 /* 128 byte wqe support here */
10623 lpfc_cmd = iocbq->context1;
10624 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
10625 fcp_cmnd = lpfc_cmd->fcp_cmnd;
10627 /* Word 0-2 - FCP_CMND */
10628 wqe->generic.bde.tus.f.bdeFlags =
10629 BUFF_TYPE_BDE_IMMED;
10630 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
10631 wqe->generic.bde.addrHigh = 0;
10632 wqe->generic.bde.addrLow = 88; /* Word 22 */
10634 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
10635 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
10637 /* Word 22-29 FCP CMND Payload */
10638 ptr = &wqe->words[22];
10639 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
10642 case CMD_FCP_ICMND64_CR:
10643 /* word3 iocb=iotag wqe=payload_offset_len */
10644 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
10645 bf_set(payload_offset_len, &wqe->fcp_icmd,
10646 xmit_len + sizeof(struct fcp_rsp));
10647 bf_set(cmd_buff_len, &wqe->fcp_icmd,
10649 /* word3 iocb=IO_TAG wqe=reserved */
10650 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
10651 /* Always open the exchange */
10652 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
10653 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
10654 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
10655 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
10656 LPFC_WQE_LENLOC_NONE);
10657 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
10658 iocbq->iocb.ulpFCP2Rcvy);
10659 if (iocbq->iocb_flag & LPFC_IO_OAS) {
10660 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
10661 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
10662 if (iocbq->priority) {
10663 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
10664 (iocbq->priority << 1));
10666 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
10667 (phba->cfg_XLanePriority << 1));
10670 /* Note, word 10 is already initialized to 0 */
10672 if (phba->fcp_embed_io) {
10673 struct lpfc_io_buf *lpfc_cmd;
10674 struct sli4_sge *sgl;
10675 struct fcp_cmnd *fcp_cmnd;
10678 /* 128 byte wqe support here */
10680 lpfc_cmd = iocbq->context1;
10681 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
10682 fcp_cmnd = lpfc_cmd->fcp_cmnd;
10684 /* Word 0-2 - FCP_CMND */
10685 wqe->generic.bde.tus.f.bdeFlags =
10686 BUFF_TYPE_BDE_IMMED;
10687 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
10688 wqe->generic.bde.addrHigh = 0;
10689 wqe->generic.bde.addrLow = 88; /* Word 22 */
10691 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
10692 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
10694 /* Word 22-29 FCP CMND Payload */
10695 ptr = &wqe->words[22];
10696 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
10699 case CMD_GEN_REQUEST64_CR:
10700 /* For this command calculate the xmit length of the
10704 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
10705 sizeof(struct ulp_bde64);
10706 for (i = 0; i < numBdes; i++) {
10707 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
10708 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
10710 xmit_len += bde.tus.f.bdeSize;
10712 /* word3 iocb=IO_TAG wqe=request_payload_len */
10713 wqe->gen_req.request_payload_len = xmit_len;
10714 /* word4 iocb=parameter wqe=relative_offset memcpy */
10715 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
10716 /* word6 context tag copied in memcpy */
10717 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
10718 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
10719 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10720 "2015 Invalid CT %x command 0x%x\n",
10721 ct, iocbq->iocb.ulpCommand);
10724 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
10725 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
10726 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
10727 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
10728 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
10729 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
10730 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
10731 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
10732 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
10733 command_type = OTHER_COMMAND;
10735 case CMD_XMIT_ELS_RSP64_CX:
10736 ndlp = (struct lpfc_nodelist *)iocbq->context1;
10737 /* words0-2 BDE memcpy */
10738 /* word3 iocb=iotag32 wqe=response_payload_len */
10739 wqe->xmit_els_rsp.response_payload_len = xmit_len;
10741 wqe->xmit_els_rsp.word4 = 0;
10742 /* word5 iocb=rsvd wge=did */
10743 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
10744 iocbq->iocb.un.xseq64.xmit_els_remoteID);
10746 if_type = bf_get(lpfc_sli_intf_if_type,
10747 &phba->sli4_hba.sli_intf);
10748 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10749 if (iocbq->vport->fc_flag & FC_PT2PT) {
10750 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
10751 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
10752 iocbq->vport->fc_myDID);
10753 if (iocbq->vport->fc_myDID == Fabric_DID) {
10754 bf_set(wqe_els_did,
10755 &wqe->xmit_els_rsp.wqe_dest, 0);
10759 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
10760 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
10761 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
10762 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
10763 iocbq->iocb.unsli3.rcvsli3.ox_id);
10764 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
10765 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
10766 phba->vpi_ids[iocbq->vport->vpi]);
10767 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
10768 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
10769 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
10770 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
10771 LPFC_WQE_LENLOC_WORD3);
10772 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
10773 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
10774 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
10775 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
10776 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
10777 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
10778 iocbq->vport->fc_myDID);
10779 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
10780 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
10781 phba->vpi_ids[phba->pport->vpi]);
10783 command_type = OTHER_COMMAND;
10785 case CMD_CLOSE_XRI_CN:
10786 case CMD_ABORT_XRI_CN:
10787 case CMD_ABORT_XRI_CX:
10788 /* words 0-2 memcpy should be 0 rserved */
10789 /* port will send abts */
10790 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
10791 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
10792 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
10793 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
10797 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
10799 * The link is down, or the command was ELS_FIP
10800 * so the fw does not need to send abts
10803 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
10805 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
10806 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
10807 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
10808 wqe->abort_cmd.rsrvd5 = 0;
10809 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
10810 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
10811 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
10813 * The abort handler will send us CMD_ABORT_XRI_CN or
10814 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
10816 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
10817 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
10818 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
10819 LPFC_WQE_LENLOC_NONE);
10820 cmnd = CMD_ABORT_XRI_CX;
10821 command_type = OTHER_COMMAND;
10824 case CMD_XMIT_BLS_RSP64_CX:
10825 ndlp = (struct lpfc_nodelist *)iocbq->context1;
10826 /* As BLS ABTS RSP WQE is very different from other WQEs,
10827 * we re-construct this WQE here based on information in
10828 * iocbq from scratch.
10830 memset(wqe, 0, sizeof(*wqe));
10831 /* OX_ID is invariable to who sent ABTS to CT exchange */
10832 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
10833 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
10834 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
10835 LPFC_ABTS_UNSOL_INT) {
10836 /* ABTS sent by initiator to CT exchange, the
10837 * RX_ID field will be filled with the newly
10838 * allocated responder XRI.
10840 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
10841 iocbq->sli4_xritag);
10843 /* ABTS sent by responder to CT exchange, the
10844 * RX_ID field will be filled with the responder
10847 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
10848 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
10850 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
10851 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
10854 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
10856 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
10857 iocbq->iocb.ulpContext);
10858 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
10859 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
10860 phba->vpi_ids[phba->pport->vpi]);
10861 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
10862 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
10863 LPFC_WQE_LENLOC_NONE);
10864 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
10865 command_type = OTHER_COMMAND;
10866 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
10867 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
10868 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
10869 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
10870 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
10871 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
10872 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
10876 case CMD_SEND_FRAME:
10877 bf_set(wqe_cmnd, &wqe->generic.wqe_com, CMD_SEND_FRAME);
10878 bf_set(wqe_sof, &wqe->generic.wqe_com, 0x2E); /* SOF byte */
10879 bf_set(wqe_eof, &wqe->generic.wqe_com, 0x41); /* EOF byte */
10880 bf_set(wqe_lenloc, &wqe->generic.wqe_com, 1);
10881 bf_set(wqe_xbl, &wqe->generic.wqe_com, 1);
10882 bf_set(wqe_dbde, &wqe->generic.wqe_com, 1);
10883 bf_set(wqe_xc, &wqe->generic.wqe_com, 1);
10884 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, 0xA);
10885 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
10886 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
10887 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
10889 case CMD_XRI_ABORTED_CX:
10890 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
10891 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
10892 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
10893 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
10894 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
10896 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10897 "2014 Invalid command 0x%x\n",
10898 iocbq->iocb.ulpCommand);
10902 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
10903 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
10904 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
10905 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
10906 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
10907 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
10908 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
10909 LPFC_IO_DIF_INSERT);
10910 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
10911 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
10912 wqe->generic.wqe_com.abort_tag = abort_tag;
10913 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
10914 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
10915 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
10916 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
10921 * __lpfc_sli_issue_fcp_io_s3 - SLI3 device for sending fcp io iocb
10922 * @phba: Pointer to HBA context object.
10923 * @ring_number: SLI ring number to issue wqe on.
10924 * @piocb: Pointer to command iocb.
10925 * @flag: Flag indicating if this command can be put into txq.
10927 * __lpfc_sli_issue_fcp_io_s3 is wrapper function to invoke lockless func to
10928 * send an iocb command to an HBA with SLI-4 interface spec.
10930 * This function takes the hbalock before invoking the lockless version.
10931 * The function will return success after it successfully submit the wqe to
10932 * firmware or after adding to the txq.
10935 __lpfc_sli_issue_fcp_io_s3(struct lpfc_hba *phba, uint32_t ring_number,
10936 struct lpfc_iocbq *piocb, uint32_t flag)
10938 unsigned long iflags;
10941 spin_lock_irqsave(&phba->hbalock, iflags);
10942 rc = __lpfc_sli_issue_iocb_s3(phba, ring_number, piocb, flag);
10943 spin_unlock_irqrestore(&phba->hbalock, iflags);
10949 * __lpfc_sli_issue_fcp_io_s4 - SLI4 device for sending fcp io wqe
10950 * @phba: Pointer to HBA context object.
10951 * @ring_number: SLI ring number to issue wqe on.
10952 * @piocb: Pointer to command iocb.
10953 * @flag: Flag indicating if this command can be put into txq.
10955 * __lpfc_sli_issue_fcp_io_s4 is used by other functions in the driver to issue
10956 * an wqe command to an HBA with SLI-4 interface spec.
10958 * This function is a lockless version. The function will return success
10959 * after it successfully submit the wqe to firmware or after adding to the
10963 __lpfc_sli_issue_fcp_io_s4(struct lpfc_hba *phba, uint32_t ring_number,
10964 struct lpfc_iocbq *piocb, uint32_t flag)
10967 struct lpfc_io_buf *lpfc_cmd =
10968 (struct lpfc_io_buf *)piocb->context1;
10969 union lpfc_wqe128 *wqe = &piocb->wqe;
10970 struct sli4_sge *sgl;
10972 /* 128 byte wqe support here */
10973 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
10975 if (phba->fcp_embed_io) {
10976 struct fcp_cmnd *fcp_cmnd;
10979 fcp_cmnd = lpfc_cmd->fcp_cmnd;
10981 /* Word 0-2 - FCP_CMND */
10982 wqe->generic.bde.tus.f.bdeFlags =
10983 BUFF_TYPE_BDE_IMMED;
10984 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
10985 wqe->generic.bde.addrHigh = 0;
10986 wqe->generic.bde.addrLow = 88; /* Word 22 */
10988 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
10989 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
10991 /* Word 22-29 FCP CMND Payload */
10992 ptr = &wqe->words[22];
10993 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
10995 /* Word 0-2 - Inline BDE */
10996 wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
10997 wqe->generic.bde.tus.f.bdeSize = sizeof(struct fcp_cmnd);
10998 wqe->generic.bde.addrHigh = sgl->addr_hi;
10999 wqe->generic.bde.addrLow = sgl->addr_lo;
11002 bf_set(wqe_dbde, &wqe->generic.wqe_com, 1);
11003 bf_set(wqe_wqes, &wqe->generic.wqe_com, 0);
11006 /* add the VMID tags as per switch response */
11007 if (unlikely(piocb->iocb_flag & LPFC_IO_VMID)) {
11008 if (phba->pport->vmid_priority_tagging) {
11009 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
11010 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
11011 (piocb->vmid_tag.cs_ctl_vmid));
11013 bf_set(wqe_appid, &wqe->fcp_iwrite.wqe_com, 1);
11014 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
11015 wqe->words[31] = piocb->vmid_tag.app_id;
11018 rc = lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, piocb);
11023 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
11024 * @phba: Pointer to HBA context object.
11025 * @ring_number: SLI ring number to issue iocb on.
11026 * @piocb: Pointer to command iocb.
11027 * @flag: Flag indicating if this command can be put into txq.
11029 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
11030 * an iocb command to an HBA with SLI-4 interface spec.
11032 * This function is called with ringlock held. The function will return success
11033 * after it successfully submit the iocb to firmware or after adding to the
11037 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
11038 struct lpfc_iocbq *piocb, uint32_t flag)
11040 struct lpfc_sglq *sglq;
11041 union lpfc_wqe128 wqe;
11042 struct lpfc_queue *wq;
11043 struct lpfc_sli_ring *pring;
11046 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
11047 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
11048 wq = phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq;
11050 wq = phba->sli4_hba.els_wq;
11053 /* Get corresponding ring */
11057 * The WQE can be either 64 or 128 bytes,
11060 lockdep_assert_held(&pring->ring_lock);
11062 if (piocb->sli4_xritag == NO_XRI) {
11063 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
11064 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
11067 if (!list_empty(&pring->txq)) {
11068 if (!(flag & SLI_IOCB_RET_IOCB)) {
11069 __lpfc_sli_ringtx_put(phba,
11071 return IOCB_SUCCESS;
11076 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
11078 if (!(flag & SLI_IOCB_RET_IOCB)) {
11079 __lpfc_sli_ringtx_put(phba,
11082 return IOCB_SUCCESS;
11088 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
11089 /* These IO's already have an XRI and a mapped sgl. */
11094 * This is a continuation of a commandi,(CX) so this
11095 * sglq is on the active list
11097 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
11103 piocb->sli4_lxritag = sglq->sli4_lxritag;
11104 piocb->sli4_xritag = sglq->sli4_xritag;
11105 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
11109 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
11112 if (lpfc_sli4_wq_put(wq, &wqe))
11114 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
11120 * lpfc_sli_issue_fcp_io - Wrapper func for issuing fcp i/o
11122 * This routine wraps the actual fcp i/o function for issusing WQE for sli-4
11123 * or IOCB for sli-3 function.
11124 * pointer from the lpfc_hba struct.
11127 * IOCB_ERROR - Error
11128 * IOCB_SUCCESS - Success
11132 lpfc_sli_issue_fcp_io(struct lpfc_hba *phba, uint32_t ring_number,
11133 struct lpfc_iocbq *piocb, uint32_t flag)
11135 return phba->__lpfc_sli_issue_fcp_io(phba, ring_number, piocb, flag);
11139 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
11141 * This routine wraps the actual lockless version for issusing IOCB function
11142 * pointer from the lpfc_hba struct.
11145 * IOCB_ERROR - Error
11146 * IOCB_SUCCESS - Success
11150 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
11151 struct lpfc_iocbq *piocb, uint32_t flag)
11153 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
11157 * lpfc_sli_api_table_setup - Set up sli api function jump table
11158 * @phba: The hba struct for which this call is being executed.
11159 * @dev_grp: The HBA PCI-Device group number.
11161 * This routine sets up the SLI interface API function jump table in @phba
11163 * Returns: 0 - success, -ENODEV - failure.
11166 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
11170 case LPFC_PCI_DEV_LP:
11171 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
11172 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
11173 phba->__lpfc_sli_issue_fcp_io = __lpfc_sli_issue_fcp_io_s3;
11175 case LPFC_PCI_DEV_OC:
11176 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
11177 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
11178 phba->__lpfc_sli_issue_fcp_io = __lpfc_sli_issue_fcp_io_s4;
11181 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11182 "1419 Invalid HBA PCI-device group: 0x%x\n",
11186 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
11191 * lpfc_sli4_calc_ring - Calculates which ring to use
11192 * @phba: Pointer to HBA context object.
11193 * @piocb: Pointer to command iocb.
11195 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
11196 * hba_wqidx, thus we need to calculate the corresponding ring.
11197 * Since ABORTS must go on the same WQ of the command they are
11198 * aborting, we use command's hba_wqidx.
11200 struct lpfc_sli_ring *
11201 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
11203 struct lpfc_io_buf *lpfc_cmd;
11205 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
11206 if (unlikely(!phba->sli4_hba.hdwq))
11209 * for abort iocb hba_wqidx should already
11210 * be setup based on what work queue we used.
11212 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
11213 lpfc_cmd = (struct lpfc_io_buf *)piocb->context1;
11214 piocb->hba_wqidx = lpfc_cmd->hdwq_no;
11216 return phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq->pring;
11218 if (unlikely(!phba->sli4_hba.els_wq))
11220 piocb->hba_wqidx = 0;
11221 return phba->sli4_hba.els_wq->pring;
11226 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
11227 * @phba: Pointer to HBA context object.
11228 * @ring_number: Ring number
11229 * @piocb: Pointer to command iocb.
11230 * @flag: Flag indicating if this command can be put into txq.
11232 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
11233 * function. This function gets the hbalock and calls
11234 * __lpfc_sli_issue_iocb function and will return the error returned
11235 * by __lpfc_sli_issue_iocb function. This wrapper is used by
11236 * functions which do not hold hbalock.
11239 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
11240 struct lpfc_iocbq *piocb, uint32_t flag)
11242 struct lpfc_sli_ring *pring;
11243 struct lpfc_queue *eq;
11244 unsigned long iflags;
11247 if (phba->sli_rev == LPFC_SLI_REV4) {
11248 eq = phba->sli4_hba.hdwq[piocb->hba_wqidx].hba_eq;
11250 pring = lpfc_sli4_calc_ring(phba, piocb);
11251 if (unlikely(pring == NULL))
11254 spin_lock_irqsave(&pring->ring_lock, iflags);
11255 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
11256 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11258 lpfc_sli4_poll_eq(eq, LPFC_POLL_FASTPATH);
11260 /* For now, SLI2/3 will still use hbalock */
11261 spin_lock_irqsave(&phba->hbalock, iflags);
11262 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
11263 spin_unlock_irqrestore(&phba->hbalock, iflags);
11269 * lpfc_extra_ring_setup - Extra ring setup function
11270 * @phba: Pointer to HBA context object.
11272 * This function is called while driver attaches with the
11273 * HBA to setup the extra ring. The extra ring is used
11274 * only when driver needs to support target mode functionality
11275 * or IP over FC functionalities.
11277 * This function is called with no lock held. SLI3 only.
11280 lpfc_extra_ring_setup( struct lpfc_hba *phba)
11282 struct lpfc_sli *psli;
11283 struct lpfc_sli_ring *pring;
11287 /* Adjust cmd/rsp ring iocb entries more evenly */
11289 /* Take some away from the FCP ring */
11290 pring = &psli->sli3_ring[LPFC_FCP_RING];
11291 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
11292 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
11293 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
11294 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
11296 /* and give them to the extra ring */
11297 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
11299 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
11300 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
11301 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
11302 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
11304 /* Setup default profile for this ring */
11305 pring->iotag_max = 4096;
11306 pring->num_mask = 1;
11307 pring->prt[0].profile = 0; /* Mask 0 */
11308 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
11309 pring->prt[0].type = phba->cfg_multi_ring_type;
11310 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
11315 lpfc_sli_post_recovery_event(struct lpfc_hba *phba,
11316 struct lpfc_nodelist *ndlp)
11318 unsigned long iflags;
11319 struct lpfc_work_evt *evtp = &ndlp->recovery_evt;
11321 spin_lock_irqsave(&phba->hbalock, iflags);
11322 if (!list_empty(&evtp->evt_listp)) {
11323 spin_unlock_irqrestore(&phba->hbalock, iflags);
11327 /* Incrementing the reference count until the queued work is done. */
11328 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
11329 if (!evtp->evt_arg1) {
11330 spin_unlock_irqrestore(&phba->hbalock, iflags);
11333 evtp->evt = LPFC_EVT_RECOVER_PORT;
11334 list_add_tail(&evtp->evt_listp, &phba->work_list);
11335 spin_unlock_irqrestore(&phba->hbalock, iflags);
11337 lpfc_worker_wake_up(phba);
11340 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
11341 * @phba: Pointer to HBA context object.
11342 * @iocbq: Pointer to iocb object.
11344 * The async_event handler calls this routine when it receives
11345 * an ASYNC_STATUS_CN event from the port. The port generates
11346 * this event when an Abort Sequence request to an rport fails
11347 * twice in succession. The abort could be originated by the
11348 * driver or by the port. The ABTS could have been for an ELS
11349 * or FCP IO. The port only generates this event when an ABTS
11350 * fails to complete after one retry.
11353 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
11354 struct lpfc_iocbq *iocbq)
11356 struct lpfc_nodelist *ndlp = NULL;
11357 uint16_t rpi = 0, vpi = 0;
11358 struct lpfc_vport *vport = NULL;
11360 /* The rpi in the ulpContext is vport-sensitive. */
11361 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
11362 rpi = iocbq->iocb.ulpContext;
11364 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11365 "3092 Port generated ABTS async event "
11366 "on vpi %d rpi %d status 0x%x\n",
11367 vpi, rpi, iocbq->iocb.ulpStatus);
11369 vport = lpfc_find_vport_by_vpid(phba, vpi);
11372 ndlp = lpfc_findnode_rpi(vport, rpi);
11376 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
11377 lpfc_sli_abts_recover_port(vport, ndlp);
11381 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11382 "3095 Event Context not found, no "
11383 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
11384 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
11388 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
11389 * @phba: pointer to HBA context object.
11390 * @ndlp: nodelist pointer for the impacted rport.
11391 * @axri: pointer to the wcqe containing the failed exchange.
11393 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
11394 * port. The port generates this event when an abort exchange request to an
11395 * rport fails twice in succession with no reply. The abort could be originated
11396 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
11399 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
11400 struct lpfc_nodelist *ndlp,
11401 struct sli4_wcqe_xri_aborted *axri)
11403 uint32_t ext_status = 0;
11406 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11407 "3115 Node Context not found, driver "
11408 "ignoring abts err event\n");
11412 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11413 "3116 Port generated FCP XRI ABORT event on "
11414 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
11415 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
11416 bf_get(lpfc_wcqe_xa_xri, axri),
11417 bf_get(lpfc_wcqe_xa_status, axri),
11421 * Catch the ABTS protocol failure case. Older OCe FW releases returned
11422 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
11423 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
11425 ext_status = axri->parameter & IOERR_PARAM_MASK;
11426 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
11427 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
11428 lpfc_sli_post_recovery_event(phba, ndlp);
11432 * lpfc_sli_async_event_handler - ASYNC iocb handler function
11433 * @phba: Pointer to HBA context object.
11434 * @pring: Pointer to driver SLI ring object.
11435 * @iocbq: Pointer to iocb object.
11437 * This function is called by the slow ring event handler
11438 * function when there is an ASYNC event iocb in the ring.
11439 * This function is called with no lock held.
11440 * Currently this function handles only temperature related
11441 * ASYNC events. The function decodes the temperature sensor
11442 * event message and posts events for the management applications.
11445 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
11446 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
11450 struct temp_event temp_event_data;
11451 struct Scsi_Host *shost;
11454 icmd = &iocbq->iocb;
11455 evt_code = icmd->un.asyncstat.evt_code;
11457 switch (evt_code) {
11458 case ASYNC_TEMP_WARN:
11459 case ASYNC_TEMP_SAFE:
11460 temp_event_data.data = (uint32_t) icmd->ulpContext;
11461 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
11462 if (evt_code == ASYNC_TEMP_WARN) {
11463 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
11464 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11465 "0347 Adapter is very hot, please take "
11466 "corrective action. temperature : %d Celsius\n",
11467 (uint32_t) icmd->ulpContext);
11469 temp_event_data.event_code = LPFC_NORMAL_TEMP;
11470 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11471 "0340 Adapter temperature is OK now. "
11472 "temperature : %d Celsius\n",
11473 (uint32_t) icmd->ulpContext);
11476 /* Send temperature change event to applications */
11477 shost = lpfc_shost_from_vport(phba->pport);
11478 fc_host_post_vendor_event(shost, fc_get_event_number(),
11479 sizeof(temp_event_data), (char *) &temp_event_data,
11480 LPFC_NL_VENDOR_ID);
11482 case ASYNC_STATUS_CN:
11483 lpfc_sli_abts_err_handler(phba, iocbq);
11486 iocb_w = (uint32_t *) icmd;
11487 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11488 "0346 Ring %d handler: unexpected ASYNC_STATUS"
11490 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
11491 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
11492 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
11493 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
11494 pring->ringno, icmd->un.asyncstat.evt_code,
11495 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
11496 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
11497 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
11498 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
11506 * lpfc_sli4_setup - SLI ring setup function
11507 * @phba: Pointer to HBA context object.
11509 * lpfc_sli_setup sets up rings of the SLI interface with
11510 * number of iocbs per ring and iotags. This function is
11511 * called while driver attach to the HBA and before the
11512 * interrupts are enabled. So there is no need for locking.
11514 * This function always returns 0.
11517 lpfc_sli4_setup(struct lpfc_hba *phba)
11519 struct lpfc_sli_ring *pring;
11521 pring = phba->sli4_hba.els_wq->pring;
11522 pring->num_mask = LPFC_MAX_RING_MASK;
11523 pring->prt[0].profile = 0; /* Mask 0 */
11524 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
11525 pring->prt[0].type = FC_TYPE_ELS;
11526 pring->prt[0].lpfc_sli_rcv_unsol_event =
11527 lpfc_els_unsol_event;
11528 pring->prt[1].profile = 0; /* Mask 1 */
11529 pring->prt[1].rctl = FC_RCTL_ELS_REP;
11530 pring->prt[1].type = FC_TYPE_ELS;
11531 pring->prt[1].lpfc_sli_rcv_unsol_event =
11532 lpfc_els_unsol_event;
11533 pring->prt[2].profile = 0; /* Mask 2 */
11534 /* NameServer Inquiry */
11535 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
11537 pring->prt[2].type = FC_TYPE_CT;
11538 pring->prt[2].lpfc_sli_rcv_unsol_event =
11539 lpfc_ct_unsol_event;
11540 pring->prt[3].profile = 0; /* Mask 3 */
11541 /* NameServer response */
11542 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
11544 pring->prt[3].type = FC_TYPE_CT;
11545 pring->prt[3].lpfc_sli_rcv_unsol_event =
11546 lpfc_ct_unsol_event;
11551 * lpfc_sli_setup - SLI ring setup function
11552 * @phba: Pointer to HBA context object.
11554 * lpfc_sli_setup sets up rings of the SLI interface with
11555 * number of iocbs per ring and iotags. This function is
11556 * called while driver attach to the HBA and before the
11557 * interrupts are enabled. So there is no need for locking.
11559 * This function always returns 0. SLI3 only.
11562 lpfc_sli_setup(struct lpfc_hba *phba)
11564 int i, totiocbsize = 0;
11565 struct lpfc_sli *psli = &phba->sli;
11566 struct lpfc_sli_ring *pring;
11568 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
11569 psli->sli_flag = 0;
11571 psli->iocbq_lookup = NULL;
11572 psli->iocbq_lookup_len = 0;
11573 psli->last_iotag = 0;
11575 for (i = 0; i < psli->num_rings; i++) {
11576 pring = &psli->sli3_ring[i];
11578 case LPFC_FCP_RING: /* ring 0 - FCP */
11579 /* numCiocb and numRiocb are used in config_port */
11580 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
11581 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
11582 pring->sli.sli3.numCiocb +=
11583 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
11584 pring->sli.sli3.numRiocb +=
11585 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
11586 pring->sli.sli3.numCiocb +=
11587 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
11588 pring->sli.sli3.numRiocb +=
11589 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
11590 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
11591 SLI3_IOCB_CMD_SIZE :
11592 SLI2_IOCB_CMD_SIZE;
11593 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
11594 SLI3_IOCB_RSP_SIZE :
11595 SLI2_IOCB_RSP_SIZE;
11596 pring->iotag_ctr = 0;
11598 (phba->cfg_hba_queue_depth * 2);
11599 pring->fast_iotag = pring->iotag_max;
11600 pring->num_mask = 0;
11602 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
11603 /* numCiocb and numRiocb are used in config_port */
11604 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
11605 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
11606 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
11607 SLI3_IOCB_CMD_SIZE :
11608 SLI2_IOCB_CMD_SIZE;
11609 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
11610 SLI3_IOCB_RSP_SIZE :
11611 SLI2_IOCB_RSP_SIZE;
11612 pring->iotag_max = phba->cfg_hba_queue_depth;
11613 pring->num_mask = 0;
11615 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
11616 /* numCiocb and numRiocb are used in config_port */
11617 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
11618 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
11619 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
11620 SLI3_IOCB_CMD_SIZE :
11621 SLI2_IOCB_CMD_SIZE;
11622 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
11623 SLI3_IOCB_RSP_SIZE :
11624 SLI2_IOCB_RSP_SIZE;
11625 pring->fast_iotag = 0;
11626 pring->iotag_ctr = 0;
11627 pring->iotag_max = 4096;
11628 pring->lpfc_sli_rcv_async_status =
11629 lpfc_sli_async_event_handler;
11630 pring->num_mask = LPFC_MAX_RING_MASK;
11631 pring->prt[0].profile = 0; /* Mask 0 */
11632 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
11633 pring->prt[0].type = FC_TYPE_ELS;
11634 pring->prt[0].lpfc_sli_rcv_unsol_event =
11635 lpfc_els_unsol_event;
11636 pring->prt[1].profile = 0; /* Mask 1 */
11637 pring->prt[1].rctl = FC_RCTL_ELS_REP;
11638 pring->prt[1].type = FC_TYPE_ELS;
11639 pring->prt[1].lpfc_sli_rcv_unsol_event =
11640 lpfc_els_unsol_event;
11641 pring->prt[2].profile = 0; /* Mask 2 */
11642 /* NameServer Inquiry */
11643 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
11645 pring->prt[2].type = FC_TYPE_CT;
11646 pring->prt[2].lpfc_sli_rcv_unsol_event =
11647 lpfc_ct_unsol_event;
11648 pring->prt[3].profile = 0; /* Mask 3 */
11649 /* NameServer response */
11650 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
11652 pring->prt[3].type = FC_TYPE_CT;
11653 pring->prt[3].lpfc_sli_rcv_unsol_event =
11654 lpfc_ct_unsol_event;
11657 totiocbsize += (pring->sli.sli3.numCiocb *
11658 pring->sli.sli3.sizeCiocb) +
11659 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
11661 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
11662 /* Too many cmd / rsp ring entries in SLI2 SLIM */
11663 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
11664 "SLI2 SLIM Data: x%x x%lx\n",
11665 phba->brd_no, totiocbsize,
11666 (unsigned long) MAX_SLIM_IOCB_SIZE);
11668 if (phba->cfg_multi_ring_support == 2)
11669 lpfc_extra_ring_setup(phba);
11675 * lpfc_sli4_queue_init - Queue initialization function
11676 * @phba: Pointer to HBA context object.
11678 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
11679 * ring. This function also initializes ring indices of each ring.
11680 * This function is called during the initialization of the SLI
11681 * interface of an HBA.
11682 * This function is called with no lock held and always returns
11686 lpfc_sli4_queue_init(struct lpfc_hba *phba)
11688 struct lpfc_sli *psli;
11689 struct lpfc_sli_ring *pring;
11693 spin_lock_irq(&phba->hbalock);
11694 INIT_LIST_HEAD(&psli->mboxq);
11695 INIT_LIST_HEAD(&psli->mboxq_cmpl);
11696 /* Initialize list headers for txq and txcmplq as double linked lists */
11697 for (i = 0; i < phba->cfg_hdw_queue; i++) {
11698 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
11700 pring->ringno = LPFC_FCP_RING;
11701 pring->txcmplq_cnt = 0;
11702 INIT_LIST_HEAD(&pring->txq);
11703 INIT_LIST_HEAD(&pring->txcmplq);
11704 INIT_LIST_HEAD(&pring->iocb_continueq);
11705 spin_lock_init(&pring->ring_lock);
11707 pring = phba->sli4_hba.els_wq->pring;
11709 pring->ringno = LPFC_ELS_RING;
11710 pring->txcmplq_cnt = 0;
11711 INIT_LIST_HEAD(&pring->txq);
11712 INIT_LIST_HEAD(&pring->txcmplq);
11713 INIT_LIST_HEAD(&pring->iocb_continueq);
11714 spin_lock_init(&pring->ring_lock);
11716 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11717 pring = phba->sli4_hba.nvmels_wq->pring;
11719 pring->ringno = LPFC_ELS_RING;
11720 pring->txcmplq_cnt = 0;
11721 INIT_LIST_HEAD(&pring->txq);
11722 INIT_LIST_HEAD(&pring->txcmplq);
11723 INIT_LIST_HEAD(&pring->iocb_continueq);
11724 spin_lock_init(&pring->ring_lock);
11727 spin_unlock_irq(&phba->hbalock);
11731 * lpfc_sli_queue_init - Queue initialization function
11732 * @phba: Pointer to HBA context object.
11734 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
11735 * ring. This function also initializes ring indices of each ring.
11736 * This function is called during the initialization of the SLI
11737 * interface of an HBA.
11738 * This function is called with no lock held and always returns
11742 lpfc_sli_queue_init(struct lpfc_hba *phba)
11744 struct lpfc_sli *psli;
11745 struct lpfc_sli_ring *pring;
11749 spin_lock_irq(&phba->hbalock);
11750 INIT_LIST_HEAD(&psli->mboxq);
11751 INIT_LIST_HEAD(&psli->mboxq_cmpl);
11752 /* Initialize list headers for txq and txcmplq as double linked lists */
11753 for (i = 0; i < psli->num_rings; i++) {
11754 pring = &psli->sli3_ring[i];
11756 pring->sli.sli3.next_cmdidx = 0;
11757 pring->sli.sli3.local_getidx = 0;
11758 pring->sli.sli3.cmdidx = 0;
11759 INIT_LIST_HEAD(&pring->iocb_continueq);
11760 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
11761 INIT_LIST_HEAD(&pring->postbufq);
11763 INIT_LIST_HEAD(&pring->txq);
11764 INIT_LIST_HEAD(&pring->txcmplq);
11765 spin_lock_init(&pring->ring_lock);
11767 spin_unlock_irq(&phba->hbalock);
11771 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
11772 * @phba: Pointer to HBA context object.
11774 * This routine flushes the mailbox command subsystem. It will unconditionally
11775 * flush all the mailbox commands in the three possible stages in the mailbox
11776 * command sub-system: pending mailbox command queue; the outstanding mailbox
11777 * command; and completed mailbox command queue. It is caller's responsibility
11778 * to make sure that the driver is in the proper state to flush the mailbox
11779 * command sub-system. Namely, the posting of mailbox commands into the
11780 * pending mailbox command queue from the various clients must be stopped;
11781 * either the HBA is in a state that it will never works on the outstanding
11782 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
11783 * mailbox command has been completed.
11786 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
11788 LIST_HEAD(completions);
11789 struct lpfc_sli *psli = &phba->sli;
11791 unsigned long iflag;
11793 /* Disable softirqs, including timers from obtaining phba->hbalock */
11794 local_bh_disable();
11796 /* Flush all the mailbox commands in the mbox system */
11797 spin_lock_irqsave(&phba->hbalock, iflag);
11799 /* The pending mailbox command queue */
11800 list_splice_init(&phba->sli.mboxq, &completions);
11801 /* The outstanding active mailbox command */
11802 if (psli->mbox_active) {
11803 list_add_tail(&psli->mbox_active->list, &completions);
11804 psli->mbox_active = NULL;
11805 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11807 /* The completed mailbox command queue */
11808 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
11809 spin_unlock_irqrestore(&phba->hbalock, iflag);
11811 /* Enable softirqs again, done with phba->hbalock */
11814 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
11815 while (!list_empty(&completions)) {
11816 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
11817 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
11818 if (pmb->mbox_cmpl)
11819 pmb->mbox_cmpl(phba, pmb);
11824 * lpfc_sli_host_down - Vport cleanup function
11825 * @vport: Pointer to virtual port object.
11827 * lpfc_sli_host_down is called to clean up the resources
11828 * associated with a vport before destroying virtual
11829 * port data structures.
11830 * This function does following operations:
11831 * - Free discovery resources associated with this virtual
11833 * - Free iocbs associated with this virtual port in
11835 * - Send abort for all iocb commands associated with this
11836 * vport in txcmplq.
11838 * This function is called with no lock held and always returns 1.
11841 lpfc_sli_host_down(struct lpfc_vport *vport)
11843 LIST_HEAD(completions);
11844 struct lpfc_hba *phba = vport->phba;
11845 struct lpfc_sli *psli = &phba->sli;
11846 struct lpfc_queue *qp = NULL;
11847 struct lpfc_sli_ring *pring;
11848 struct lpfc_iocbq *iocb, *next_iocb;
11850 unsigned long flags = 0;
11851 uint16_t prev_pring_flag;
11853 lpfc_cleanup_discovery_resources(vport);
11855 spin_lock_irqsave(&phba->hbalock, flags);
11858 * Error everything on the txq since these iocbs
11859 * have not been given to the FW yet.
11860 * Also issue ABTS for everything on the txcmplq
11862 if (phba->sli_rev != LPFC_SLI_REV4) {
11863 for (i = 0; i < psli->num_rings; i++) {
11864 pring = &psli->sli3_ring[i];
11865 prev_pring_flag = pring->flag;
11866 /* Only slow rings */
11867 if (pring->ringno == LPFC_ELS_RING) {
11868 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11869 /* Set the lpfc data pending flag */
11870 set_bit(LPFC_DATA_READY, &phba->data_flags);
11872 list_for_each_entry_safe(iocb, next_iocb,
11873 &pring->txq, list) {
11874 if (iocb->vport != vport)
11876 list_move_tail(&iocb->list, &completions);
11878 list_for_each_entry_safe(iocb, next_iocb,
11879 &pring->txcmplq, list) {
11880 if (iocb->vport != vport)
11882 lpfc_sli_issue_abort_iotag(phba, pring, iocb,
11885 pring->flag = prev_pring_flag;
11888 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11892 if (pring == phba->sli4_hba.els_wq->pring) {
11893 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11894 /* Set the lpfc data pending flag */
11895 set_bit(LPFC_DATA_READY, &phba->data_flags);
11897 prev_pring_flag = pring->flag;
11898 spin_lock(&pring->ring_lock);
11899 list_for_each_entry_safe(iocb, next_iocb,
11900 &pring->txq, list) {
11901 if (iocb->vport != vport)
11903 list_move_tail(&iocb->list, &completions);
11905 spin_unlock(&pring->ring_lock);
11906 list_for_each_entry_safe(iocb, next_iocb,
11907 &pring->txcmplq, list) {
11908 if (iocb->vport != vport)
11910 lpfc_sli_issue_abort_iotag(phba, pring, iocb,
11913 pring->flag = prev_pring_flag;
11916 spin_unlock_irqrestore(&phba->hbalock, flags);
11918 /* Make sure HBA is alive */
11919 lpfc_issue_hb_tmo(phba);
11921 /* Cancel all the IOCBs from the completions list */
11922 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
11928 * lpfc_sli_hba_down - Resource cleanup function for the HBA
11929 * @phba: Pointer to HBA context object.
11931 * This function cleans up all iocb, buffers, mailbox commands
11932 * while shutting down the HBA. This function is called with no
11933 * lock held and always returns 1.
11934 * This function does the following to cleanup driver resources:
11935 * - Free discovery resources for each virtual port
11936 * - Cleanup any pending fabric iocbs
11937 * - Iterate through the iocb txq and free each entry
11939 * - Free up any buffer posted to the HBA
11940 * - Free mailbox commands in the mailbox queue.
11943 lpfc_sli_hba_down(struct lpfc_hba *phba)
11945 LIST_HEAD(completions);
11946 struct lpfc_sli *psli = &phba->sli;
11947 struct lpfc_queue *qp = NULL;
11948 struct lpfc_sli_ring *pring;
11949 struct lpfc_dmabuf *buf_ptr;
11950 unsigned long flags = 0;
11953 /* Shutdown the mailbox command sub-system */
11954 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
11956 lpfc_hba_down_prep(phba);
11958 /* Disable softirqs, including timers from obtaining phba->hbalock */
11959 local_bh_disable();
11961 lpfc_fabric_abort_hba(phba);
11963 spin_lock_irqsave(&phba->hbalock, flags);
11966 * Error everything on the txq since these iocbs
11967 * have not been given to the FW yet.
11969 if (phba->sli_rev != LPFC_SLI_REV4) {
11970 for (i = 0; i < psli->num_rings; i++) {
11971 pring = &psli->sli3_ring[i];
11972 /* Only slow rings */
11973 if (pring->ringno == LPFC_ELS_RING) {
11974 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11975 /* Set the lpfc data pending flag */
11976 set_bit(LPFC_DATA_READY, &phba->data_flags);
11978 list_splice_init(&pring->txq, &completions);
11981 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11985 spin_lock(&pring->ring_lock);
11986 list_splice_init(&pring->txq, &completions);
11987 spin_unlock(&pring->ring_lock);
11988 if (pring == phba->sli4_hba.els_wq->pring) {
11989 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11990 /* Set the lpfc data pending flag */
11991 set_bit(LPFC_DATA_READY, &phba->data_flags);
11995 spin_unlock_irqrestore(&phba->hbalock, flags);
11997 /* Cancel all the IOCBs from the completions list */
11998 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
12001 spin_lock_irqsave(&phba->hbalock, flags);
12002 list_splice_init(&phba->elsbuf, &completions);
12003 phba->elsbuf_cnt = 0;
12004 phba->elsbuf_prev_cnt = 0;
12005 spin_unlock_irqrestore(&phba->hbalock, flags);
12007 while (!list_empty(&completions)) {
12008 list_remove_head(&completions, buf_ptr,
12009 struct lpfc_dmabuf, list);
12010 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
12014 /* Enable softirqs again, done with phba->hbalock */
12017 /* Return any active mbox cmds */
12018 del_timer_sync(&psli->mbox_tmo);
12020 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
12021 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
12022 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
12028 * lpfc_sli_pcimem_bcopy - SLI memory copy function
12029 * @srcp: Source memory pointer.
12030 * @destp: Destination memory pointer.
12031 * @cnt: Number of words required to be copied.
12033 * This function is used for copying data between driver memory
12034 * and the SLI memory. This function also changes the endianness
12035 * of each word if native endianness is different from SLI
12036 * endianness. This function can be called with or without
12040 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
12042 uint32_t *src = srcp;
12043 uint32_t *dest = destp;
12047 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
12049 ldata = le32_to_cpu(ldata);
12058 * lpfc_sli_bemem_bcopy - SLI memory copy function
12059 * @srcp: Source memory pointer.
12060 * @destp: Destination memory pointer.
12061 * @cnt: Number of words required to be copied.
12063 * This function is used for copying data between a data structure
12064 * with big endian representation to local endianness.
12065 * This function can be called with or without lock.
12068 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
12070 uint32_t *src = srcp;
12071 uint32_t *dest = destp;
12075 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
12077 ldata = be32_to_cpu(ldata);
12085 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
12086 * @phba: Pointer to HBA context object.
12087 * @pring: Pointer to driver SLI ring object.
12088 * @mp: Pointer to driver buffer object.
12090 * This function is called with no lock held.
12091 * It always return zero after adding the buffer to the postbufq
12095 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
12096 struct lpfc_dmabuf *mp)
12098 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
12100 spin_lock_irq(&phba->hbalock);
12101 list_add_tail(&mp->list, &pring->postbufq);
12102 pring->postbufq_cnt++;
12103 spin_unlock_irq(&phba->hbalock);
12108 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
12109 * @phba: Pointer to HBA context object.
12111 * When HBQ is enabled, buffers are searched based on tags. This function
12112 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
12113 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
12114 * does not conflict with tags of buffer posted for unsolicited events.
12115 * The function returns the allocated tag. The function is called with
12119 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
12121 spin_lock_irq(&phba->hbalock);
12122 phba->buffer_tag_count++;
12124 * Always set the QUE_BUFTAG_BIT to distiguish between
12125 * a tag assigned by HBQ.
12127 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
12128 spin_unlock_irq(&phba->hbalock);
12129 return phba->buffer_tag_count;
12133 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
12134 * @phba: Pointer to HBA context object.
12135 * @pring: Pointer to driver SLI ring object.
12136 * @tag: Buffer tag.
12138 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
12139 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
12140 * iocb is posted to the response ring with the tag of the buffer.
12141 * This function searches the pring->postbufq list using the tag
12142 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
12143 * iocb. If the buffer is found then lpfc_dmabuf object of the
12144 * buffer is returned to the caller else NULL is returned.
12145 * This function is called with no lock held.
12147 struct lpfc_dmabuf *
12148 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
12151 struct lpfc_dmabuf *mp, *next_mp;
12152 struct list_head *slp = &pring->postbufq;
12154 /* Search postbufq, from the beginning, looking for a match on tag */
12155 spin_lock_irq(&phba->hbalock);
12156 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
12157 if (mp->buffer_tag == tag) {
12158 list_del_init(&mp->list);
12159 pring->postbufq_cnt--;
12160 spin_unlock_irq(&phba->hbalock);
12165 spin_unlock_irq(&phba->hbalock);
12166 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12167 "0402 Cannot find virtual addr for buffer tag on "
12168 "ring %d Data x%lx x%px x%px x%x\n",
12169 pring->ringno, (unsigned long) tag,
12170 slp->next, slp->prev, pring->postbufq_cnt);
12176 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
12177 * @phba: Pointer to HBA context object.
12178 * @pring: Pointer to driver SLI ring object.
12179 * @phys: DMA address of the buffer.
12181 * This function searches the buffer list using the dma_address
12182 * of unsolicited event to find the driver's lpfc_dmabuf object
12183 * corresponding to the dma_address. The function returns the
12184 * lpfc_dmabuf object if a buffer is found else it returns NULL.
12185 * This function is called by the ct and els unsolicited event
12186 * handlers to get the buffer associated with the unsolicited
12189 * This function is called with no lock held.
12191 struct lpfc_dmabuf *
12192 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
12195 struct lpfc_dmabuf *mp, *next_mp;
12196 struct list_head *slp = &pring->postbufq;
12198 /* Search postbufq, from the beginning, looking for a match on phys */
12199 spin_lock_irq(&phba->hbalock);
12200 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
12201 if (mp->phys == phys) {
12202 list_del_init(&mp->list);
12203 pring->postbufq_cnt--;
12204 spin_unlock_irq(&phba->hbalock);
12209 spin_unlock_irq(&phba->hbalock);
12210 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12211 "0410 Cannot find virtual addr for mapped buf on "
12212 "ring %d Data x%llx x%px x%px x%x\n",
12213 pring->ringno, (unsigned long long)phys,
12214 slp->next, slp->prev, pring->postbufq_cnt);
12219 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
12220 * @phba: Pointer to HBA context object.
12221 * @cmdiocb: Pointer to driver command iocb object.
12222 * @rspiocb: Pointer to driver response iocb object.
12224 * This function is the completion handler for the abort iocbs for
12225 * ELS commands. This function is called from the ELS ring event
12226 * handler with no lock held. This function frees memory resources
12227 * associated with the abort iocb.
12230 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
12231 struct lpfc_iocbq *rspiocb)
12233 IOCB_t *irsp = &rspiocb->iocb;
12234 uint16_t abort_iotag, abort_context;
12235 struct lpfc_iocbq *abort_iocb = NULL;
12237 if (irsp->ulpStatus) {
12240 * Assume that the port already completed and returned, or
12241 * will return the iocb. Just Log the message.
12243 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
12244 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
12246 spin_lock_irq(&phba->hbalock);
12247 if (phba->sli_rev < LPFC_SLI_REV4) {
12248 if (irsp->ulpCommand == CMD_ABORT_XRI_CX &&
12249 irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
12250 irsp->un.ulpWord[4] == IOERR_ABORT_REQUESTED) {
12251 spin_unlock_irq(&phba->hbalock);
12254 if (abort_iotag != 0 &&
12255 abort_iotag <= phba->sli.last_iotag)
12257 phba->sli.iocbq_lookup[abort_iotag];
12259 /* For sli4 the abort_tag is the XRI,
12260 * so the abort routine puts the iotag of the iocb
12261 * being aborted in the context field of the abort
12264 abort_iocb = phba->sli.iocbq_lookup[abort_context];
12266 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
12267 "0327 Cannot abort els iocb x%px "
12268 "with tag %x context %x, abort status %x, "
12270 abort_iocb, abort_iotag, abort_context,
12271 irsp->ulpStatus, irsp->un.ulpWord[4]);
12273 spin_unlock_irq(&phba->hbalock);
12276 lpfc_sli_release_iocbq(phba, cmdiocb);
12281 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
12282 * @phba: Pointer to HBA context object.
12283 * @cmdiocb: Pointer to driver command iocb object.
12284 * @rspiocb: Pointer to driver response iocb object.
12286 * The function is called from SLI ring event handler with no
12287 * lock held. This function is the completion handler for ELS commands
12288 * which are aborted. The function frees memory resources used for
12289 * the aborted ELS commands.
12292 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
12293 struct lpfc_iocbq *rspiocb)
12295 struct lpfc_nodelist *ndlp = NULL;
12296 IOCB_t *irsp = &rspiocb->iocb;
12298 /* ELS cmd tag <ulpIoTag> completes */
12299 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
12300 "0139 Ignoring ELS cmd code x%x completion Data: "
12302 irsp->ulpIoTag, irsp->ulpStatus,
12303 irsp->un.ulpWord[4], irsp->ulpTimeout);
12305 * Deref the ndlp after free_iocb. sli_release_iocb will access the ndlp
12306 * if exchange is busy.
12308 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
12309 ndlp = cmdiocb->context_un.ndlp;
12310 lpfc_ct_free_iocb(phba, cmdiocb);
12312 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
12313 lpfc_els_free_iocb(phba, cmdiocb);
12316 lpfc_nlp_put(ndlp);
12320 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
12321 * @phba: Pointer to HBA context object.
12322 * @pring: Pointer to driver SLI ring object.
12323 * @cmdiocb: Pointer to driver command iocb object.
12324 * @cmpl: completion function.
12326 * This function issues an abort iocb for the provided command iocb. In case
12327 * of unloading, the abort iocb will not be issued to commands on the ELS
12328 * ring. Instead, the callback function shall be changed to those commands
12329 * so that nothing happens when them finishes. This function is called with
12330 * hbalock held andno ring_lock held (SLI4). The function returns IOCB_SUCCESS
12331 * when the command iocb is an abort request.
12335 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
12336 struct lpfc_iocbq *cmdiocb, void *cmpl)
12338 struct lpfc_vport *vport = cmdiocb->vport;
12339 struct lpfc_iocbq *abtsiocbp;
12340 IOCB_t *icmd = NULL;
12341 IOCB_t *iabt = NULL;
12342 int retval = IOCB_ERROR;
12343 unsigned long iflags;
12344 struct lpfc_nodelist *ndlp;
12347 * There are certain command types we don't want to abort. And we
12348 * don't want to abort commands that are already in the process of
12351 icmd = &cmdiocb->iocb;
12352 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
12353 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
12354 cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED)
12355 return IOCB_ABORTING;
12358 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
12359 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
12361 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
12366 * If we're unloading, don't abort iocb on the ELS ring, but change
12367 * the callback so that nothing happens when it finishes.
12369 if ((vport->load_flag & FC_UNLOADING) &&
12370 pring->ringno == LPFC_ELS_RING) {
12371 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
12372 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
12374 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
12378 /* issue ABTS for this IOCB based on iotag */
12379 abtsiocbp = __lpfc_sli_get_iocbq(phba);
12380 if (abtsiocbp == NULL)
12381 return IOCB_NORESOURCE;
12383 /* This signals the response to set the correct status
12384 * before calling the completion handler
12386 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
12388 iabt = &abtsiocbp->iocb;
12389 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
12390 iabt->un.acxri.abortContextTag = icmd->ulpContext;
12391 if (phba->sli_rev == LPFC_SLI_REV4) {
12392 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
12393 if (pring->ringno == LPFC_ELS_RING)
12394 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
12396 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
12397 if (pring->ringno == LPFC_ELS_RING) {
12398 ndlp = (struct lpfc_nodelist *)(cmdiocb->context1);
12399 iabt->un.acxri.abortContextTag = ndlp->nlp_rpi;
12403 iabt->ulpClass = icmd->ulpClass;
12405 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
12406 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
12407 if (cmdiocb->iocb_flag & LPFC_IO_FCP) {
12408 abtsiocbp->iocb_flag |= LPFC_IO_FCP;
12409 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
12411 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
12412 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
12414 if (phba->link_state >= LPFC_LINK_UP)
12415 iabt->ulpCommand = CMD_ABORT_XRI_CN;
12417 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
12420 abtsiocbp->iocb_cmpl = cmpl;
12422 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
12423 abtsiocbp->vport = vport;
12425 if (phba->sli_rev == LPFC_SLI_REV4) {
12426 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
12427 if (unlikely(pring == NULL))
12428 goto abort_iotag_exit;
12429 /* Note: both hbalock and ring_lock need to be set here */
12430 spin_lock_irqsave(&pring->ring_lock, iflags);
12431 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
12433 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12435 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
12441 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
12442 "0339 Abort xri x%x, original iotag x%x, "
12443 "abort cmd iotag x%x retval x%x\n",
12444 iabt->un.acxri.abortIoTag,
12445 iabt->un.acxri.abortContextTag,
12446 abtsiocbp->iotag, retval);
12449 cmdiocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
12450 __lpfc_sli_release_iocbq(phba, abtsiocbp);
12454 * Caller to this routine should check for IOCB_ERROR
12455 * and handle it properly. This routine no longer removes
12456 * iocb off txcmplq and call compl in case of IOCB_ERROR.
12462 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
12463 * @phba: pointer to lpfc HBA data structure.
12465 * This routine will abort all pending and outstanding iocbs to an HBA.
12468 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
12470 struct lpfc_sli *psli = &phba->sli;
12471 struct lpfc_sli_ring *pring;
12472 struct lpfc_queue *qp = NULL;
12475 if (phba->sli_rev != LPFC_SLI_REV4) {
12476 for (i = 0; i < psli->num_rings; i++) {
12477 pring = &psli->sli3_ring[i];
12478 lpfc_sli_abort_iocb_ring(phba, pring);
12482 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
12486 lpfc_sli_abort_iocb_ring(phba, pring);
12491 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
12492 * @iocbq: Pointer to driver iocb object.
12493 * @vport: Pointer to driver virtual port object.
12494 * @tgt_id: SCSI ID of the target.
12495 * @lun_id: LUN ID of the scsi device.
12496 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
12498 * This function acts as an iocb filter for functions which abort or count
12499 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
12500 * 0 if the filtering criteria is met for the given iocb and will return
12501 * 1 if the filtering criteria is not met.
12502 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
12503 * given iocb is for the SCSI device specified by vport, tgt_id and
12504 * lun_id parameter.
12505 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
12506 * given iocb is for the SCSI target specified by vport and tgt_id
12508 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
12509 * given iocb is for the SCSI host associated with the given vport.
12510 * This function is called with no locks held.
12513 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
12514 uint16_t tgt_id, uint64_t lun_id,
12515 lpfc_ctx_cmd ctx_cmd)
12517 struct lpfc_io_buf *lpfc_cmd;
12518 IOCB_t *icmd = NULL;
12521 if (!iocbq || iocbq->vport != vport)
12524 if (!(iocbq->iocb_flag & LPFC_IO_FCP) ||
12525 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ) ||
12526 iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
12529 icmd = &iocbq->iocb;
12530 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
12531 icmd->ulpCommand == CMD_CLOSE_XRI_CN)
12534 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
12536 if (lpfc_cmd->pCmd == NULL)
12541 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
12542 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
12543 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
12547 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
12548 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
12551 case LPFC_CTX_HOST:
12555 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
12556 __func__, ctx_cmd);
12564 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
12565 * @vport: Pointer to virtual port.
12566 * @tgt_id: SCSI ID of the target.
12567 * @lun_id: LUN ID of the scsi device.
12568 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
12570 * This function returns number of FCP commands pending for the vport.
12571 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
12572 * commands pending on the vport associated with SCSI device specified
12573 * by tgt_id and lun_id parameters.
12574 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
12575 * commands pending on the vport associated with SCSI target specified
12576 * by tgt_id parameter.
12577 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
12578 * commands pending on the vport.
12579 * This function returns the number of iocbs which satisfy the filter.
12580 * This function is called without any lock held.
12583 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
12584 lpfc_ctx_cmd ctx_cmd)
12586 struct lpfc_hba *phba = vport->phba;
12587 struct lpfc_iocbq *iocbq;
12590 spin_lock_irq(&phba->hbalock);
12591 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
12592 iocbq = phba->sli.iocbq_lookup[i];
12594 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
12598 spin_unlock_irq(&phba->hbalock);
12604 * lpfc_sli4_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
12605 * @phba: Pointer to HBA context object
12606 * @cmdiocb: Pointer to command iocb object.
12607 * @wcqe: pointer to the complete wcqe
12609 * This function is called when an aborted FCP iocb completes. This
12610 * function is called by the ring event handler with no lock held.
12611 * This function frees the iocb. It is called for sli-4 adapters.
12614 lpfc_sli4_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
12615 struct lpfc_wcqe_complete *wcqe)
12617 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12618 "3017 ABORT_XRI_CN completing on rpi x%x "
12619 "original iotag x%x, abort cmd iotag x%x "
12620 "status 0x%x, reason 0x%x\n",
12621 cmdiocb->iocb.un.acxri.abortContextTag,
12622 cmdiocb->iocb.un.acxri.abortIoTag,
12624 (bf_get(lpfc_wcqe_c_status, wcqe)
12625 & LPFC_IOCB_STATUS_MASK),
12627 lpfc_sli_release_iocbq(phba, cmdiocb);
12631 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
12632 * @phba: Pointer to HBA context object
12633 * @cmdiocb: Pointer to command iocb object.
12634 * @rspiocb: Pointer to response iocb object.
12636 * This function is called when an aborted FCP iocb completes. This
12637 * function is called by the ring event handler with no lock held.
12638 * This function frees the iocb.
12641 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
12642 struct lpfc_iocbq *rspiocb)
12644 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12645 "3096 ABORT_XRI_CN completing on rpi x%x "
12646 "original iotag x%x, abort cmd iotag x%x "
12647 "status 0x%x, reason 0x%x\n",
12648 cmdiocb->iocb.un.acxri.abortContextTag,
12649 cmdiocb->iocb.un.acxri.abortIoTag,
12650 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
12651 rspiocb->iocb.un.ulpWord[4]);
12652 lpfc_sli_release_iocbq(phba, cmdiocb);
12657 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
12658 * @vport: Pointer to virtual port.
12659 * @tgt_id: SCSI ID of the target.
12660 * @lun_id: LUN ID of the scsi device.
12661 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
12663 * This function sends an abort command for every SCSI command
12664 * associated with the given virtual port pending on the ring
12665 * filtered by lpfc_sli_validate_fcp_iocb function.
12666 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
12667 * FCP iocbs associated with lun specified by tgt_id and lun_id
12669 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
12670 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
12671 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
12672 * FCP iocbs associated with virtual port.
12673 * The pring used for SLI3 is sli3_ring[LPFC_FCP_RING], for SLI4
12674 * lpfc_sli4_calc_ring is used.
12675 * This function returns number of iocbs it failed to abort.
12676 * This function is called with no locks held.
12679 lpfc_sli_abort_iocb(struct lpfc_vport *vport, u16 tgt_id, u64 lun_id,
12680 lpfc_ctx_cmd abort_cmd)
12682 struct lpfc_hba *phba = vport->phba;
12683 struct lpfc_sli_ring *pring = NULL;
12684 struct lpfc_iocbq *iocbq;
12685 int errcnt = 0, ret_val = 0;
12686 unsigned long iflags;
12688 void *fcp_cmpl = NULL;
12690 /* all I/Os are in process of being flushed */
12691 if (phba->hba_flag & HBA_IOQ_FLUSH)
12694 for (i = 1; i <= phba->sli.last_iotag; i++) {
12695 iocbq = phba->sli.iocbq_lookup[i];
12697 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
12701 spin_lock_irqsave(&phba->hbalock, iflags);
12702 if (phba->sli_rev == LPFC_SLI_REV3) {
12703 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12704 fcp_cmpl = lpfc_sli_abort_fcp_cmpl;
12705 } else if (phba->sli_rev == LPFC_SLI_REV4) {
12706 pring = lpfc_sli4_calc_ring(phba, iocbq);
12707 fcp_cmpl = lpfc_sli4_abort_fcp_cmpl;
12709 ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocbq,
12711 spin_unlock_irqrestore(&phba->hbalock, iflags);
12712 if (ret_val != IOCB_SUCCESS)
12720 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
12721 * @vport: Pointer to virtual port.
12722 * @pring: Pointer to driver SLI ring object.
12723 * @tgt_id: SCSI ID of the target.
12724 * @lun_id: LUN ID of the scsi device.
12725 * @cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
12727 * This function sends an abort command for every SCSI command
12728 * associated with the given virtual port pending on the ring
12729 * filtered by lpfc_sli_validate_fcp_iocb function.
12730 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
12731 * FCP iocbs associated with lun specified by tgt_id and lun_id
12733 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
12734 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
12735 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
12736 * FCP iocbs associated with virtual port.
12737 * This function returns number of iocbs it aborted .
12738 * This function is called with no locks held right after a taskmgmt
12742 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
12743 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
12745 struct lpfc_hba *phba = vport->phba;
12746 struct lpfc_io_buf *lpfc_cmd;
12747 struct lpfc_iocbq *abtsiocbq;
12748 struct lpfc_nodelist *ndlp;
12749 struct lpfc_iocbq *iocbq;
12751 int sum, i, ret_val;
12752 unsigned long iflags;
12753 struct lpfc_sli_ring *pring_s4 = NULL;
12755 spin_lock_irqsave(&phba->hbalock, iflags);
12757 /* all I/Os are in process of being flushed */
12758 if (phba->hba_flag & HBA_IOQ_FLUSH) {
12759 spin_unlock_irqrestore(&phba->hbalock, iflags);
12764 for (i = 1; i <= phba->sli.last_iotag; i++) {
12765 iocbq = phba->sli.iocbq_lookup[i];
12767 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
12771 /* Guard against IO completion being called at same time */
12772 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
12773 spin_lock(&lpfc_cmd->buf_lock);
12775 if (!lpfc_cmd->pCmd) {
12776 spin_unlock(&lpfc_cmd->buf_lock);
12780 if (phba->sli_rev == LPFC_SLI_REV4) {
12782 phba->sli4_hba.hdwq[iocbq->hba_wqidx].io_wq->pring;
12784 spin_unlock(&lpfc_cmd->buf_lock);
12787 /* Note: both hbalock and ring_lock must be set here */
12788 spin_lock(&pring_s4->ring_lock);
12792 * If the iocbq is already being aborted, don't take a second
12793 * action, but do count it.
12795 if ((iocbq->iocb_flag & LPFC_DRIVER_ABORTED) ||
12796 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ)) {
12797 if (phba->sli_rev == LPFC_SLI_REV4)
12798 spin_unlock(&pring_s4->ring_lock);
12799 spin_unlock(&lpfc_cmd->buf_lock);
12803 /* issue ABTS for this IOCB based on iotag */
12804 abtsiocbq = __lpfc_sli_get_iocbq(phba);
12806 if (phba->sli_rev == LPFC_SLI_REV4)
12807 spin_unlock(&pring_s4->ring_lock);
12808 spin_unlock(&lpfc_cmd->buf_lock);
12812 icmd = &iocbq->iocb;
12813 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
12814 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
12815 if (phba->sli_rev == LPFC_SLI_REV4)
12816 abtsiocbq->iocb.un.acxri.abortIoTag =
12817 iocbq->sli4_xritag;
12819 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
12820 abtsiocbq->iocb.ulpLe = 1;
12821 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
12822 abtsiocbq->vport = vport;
12824 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
12825 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
12826 if (iocbq->iocb_flag & LPFC_IO_FCP)
12827 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
12828 if (iocbq->iocb_flag & LPFC_IO_FOF)
12829 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
12831 ndlp = lpfc_cmd->rdata->pnode;
12833 if (lpfc_is_link_up(phba) &&
12834 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
12835 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
12837 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
12839 /* Setup callback routine and issue the command. */
12840 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
12843 * Indicate the IO is being aborted by the driver and set
12844 * the caller's flag into the aborted IO.
12846 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
12848 if (phba->sli_rev == LPFC_SLI_REV4) {
12849 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
12851 spin_unlock(&pring_s4->ring_lock);
12853 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
12857 spin_unlock(&lpfc_cmd->buf_lock);
12859 if (ret_val == IOCB_ERROR)
12860 __lpfc_sli_release_iocbq(phba, abtsiocbq);
12864 spin_unlock_irqrestore(&phba->hbalock, iflags);
12869 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
12870 * @phba: Pointer to HBA context object.
12871 * @cmdiocbq: Pointer to command iocb.
12872 * @rspiocbq: Pointer to response iocb.
12874 * This function is the completion handler for iocbs issued using
12875 * lpfc_sli_issue_iocb_wait function. This function is called by the
12876 * ring event handler function without any lock held. This function
12877 * can be called from both worker thread context and interrupt
12878 * context. This function also can be called from other thread which
12879 * cleans up the SLI layer objects.
12880 * This function copy the contents of the response iocb to the
12881 * response iocb memory object provided by the caller of
12882 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
12883 * sleeps for the iocb completion.
12886 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
12887 struct lpfc_iocbq *cmdiocbq,
12888 struct lpfc_iocbq *rspiocbq)
12890 wait_queue_head_t *pdone_q;
12891 unsigned long iflags;
12892 struct lpfc_io_buf *lpfc_cmd;
12894 spin_lock_irqsave(&phba->hbalock, iflags);
12895 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
12898 * A time out has occurred for the iocb. If a time out
12899 * completion handler has been supplied, call it. Otherwise,
12900 * just free the iocbq.
12903 spin_unlock_irqrestore(&phba->hbalock, iflags);
12904 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
12905 cmdiocbq->wait_iocb_cmpl = NULL;
12906 if (cmdiocbq->iocb_cmpl)
12907 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
12909 lpfc_sli_release_iocbq(phba, cmdiocbq);
12913 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
12914 if (cmdiocbq->context2 && rspiocbq)
12915 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
12916 &rspiocbq->iocb, sizeof(IOCB_t));
12918 /* Set the exchange busy flag for task management commands */
12919 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
12920 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
12921 lpfc_cmd = container_of(cmdiocbq, struct lpfc_io_buf,
12923 if (rspiocbq && (rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY))
12924 lpfc_cmd->flags |= LPFC_SBUF_XBUSY;
12926 lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
12929 pdone_q = cmdiocbq->context_un.wait_queue;
12932 spin_unlock_irqrestore(&phba->hbalock, iflags);
12937 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
12938 * @phba: Pointer to HBA context object..
12939 * @piocbq: Pointer to command iocb.
12940 * @flag: Flag to test.
12942 * This routine grabs the hbalock and then test the iocb_flag to
12943 * see if the passed in flag is set.
12945 * 1 if flag is set.
12946 * 0 if flag is not set.
12949 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
12950 struct lpfc_iocbq *piocbq, uint32_t flag)
12952 unsigned long iflags;
12955 spin_lock_irqsave(&phba->hbalock, iflags);
12956 ret = piocbq->iocb_flag & flag;
12957 spin_unlock_irqrestore(&phba->hbalock, iflags);
12963 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
12964 * @phba: Pointer to HBA context object..
12965 * @ring_number: Ring number
12966 * @piocb: Pointer to command iocb.
12967 * @prspiocbq: Pointer to response iocb.
12968 * @timeout: Timeout in number of seconds.
12970 * This function issues the iocb to firmware and waits for the
12971 * iocb to complete. The iocb_cmpl field of the shall be used
12972 * to handle iocbs which time out. If the field is NULL, the
12973 * function shall free the iocbq structure. If more clean up is
12974 * needed, the caller is expected to provide a completion function
12975 * that will provide the needed clean up. If the iocb command is
12976 * not completed within timeout seconds, the function will either
12977 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
12978 * completion function set in the iocb_cmpl field and then return
12979 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
12980 * resources if this function returns IOCB_TIMEDOUT.
12981 * The function waits for the iocb completion using an
12982 * non-interruptible wait.
12983 * This function will sleep while waiting for iocb completion.
12984 * So, this function should not be called from any context which
12985 * does not allow sleeping. Due to the same reason, this function
12986 * cannot be called with interrupt disabled.
12987 * This function assumes that the iocb completions occur while
12988 * this function sleep. So, this function cannot be called from
12989 * the thread which process iocb completion for this ring.
12990 * This function clears the iocb_flag of the iocb object before
12991 * issuing the iocb and the iocb completion handler sets this
12992 * flag and wakes this thread when the iocb completes.
12993 * The contents of the response iocb will be copied to prspiocbq
12994 * by the completion handler when the command completes.
12995 * This function returns IOCB_SUCCESS when success.
12996 * This function is called with no lock held.
12999 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
13000 uint32_t ring_number,
13001 struct lpfc_iocbq *piocb,
13002 struct lpfc_iocbq *prspiocbq,
13005 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
13006 long timeleft, timeout_req = 0;
13007 int retval = IOCB_SUCCESS;
13009 struct lpfc_iocbq *iocb;
13011 int txcmplq_cnt = 0;
13012 struct lpfc_sli_ring *pring;
13013 unsigned long iflags;
13014 bool iocb_completed = true;
13016 if (phba->sli_rev >= LPFC_SLI_REV4)
13017 pring = lpfc_sli4_calc_ring(phba, piocb);
13019 pring = &phba->sli.sli3_ring[ring_number];
13021 * If the caller has provided a response iocbq buffer, then context2
13022 * is NULL or its an error.
13025 if (piocb->context2)
13027 piocb->context2 = prspiocbq;
13030 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
13031 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
13032 piocb->context_un.wait_queue = &done_q;
13033 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
13035 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
13036 if (lpfc_readl(phba->HCregaddr, &creg_val))
13038 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
13039 writel(creg_val, phba->HCregaddr);
13040 readl(phba->HCregaddr); /* flush */
13043 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
13044 SLI_IOCB_RET_IOCB);
13045 if (retval == IOCB_SUCCESS) {
13046 timeout_req = msecs_to_jiffies(timeout * 1000);
13047 timeleft = wait_event_timeout(done_q,
13048 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
13050 spin_lock_irqsave(&phba->hbalock, iflags);
13051 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
13054 * IOCB timed out. Inform the wake iocb wait
13055 * completion function and set local status
13058 iocb_completed = false;
13059 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
13061 spin_unlock_irqrestore(&phba->hbalock, iflags);
13062 if (iocb_completed) {
13063 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13064 "0331 IOCB wake signaled\n");
13065 /* Note: we are not indicating if the IOCB has a success
13066 * status or not - that's for the caller to check.
13067 * IOCB_SUCCESS means just that the command was sent and
13068 * completed. Not that it completed successfully.
13070 } else if (timeleft == 0) {
13071 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13072 "0338 IOCB wait timeout error - no "
13073 "wake response Data x%x\n", timeout);
13074 retval = IOCB_TIMEDOUT;
13076 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13077 "0330 IOCB wake NOT set, "
13079 timeout, (timeleft / jiffies));
13080 retval = IOCB_TIMEDOUT;
13082 } else if (retval == IOCB_BUSY) {
13083 if (phba->cfg_log_verbose & LOG_SLI) {
13084 list_for_each_entry(iocb, &pring->txq, list) {
13087 list_for_each_entry(iocb, &pring->txcmplq, list) {
13090 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13091 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
13092 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
13096 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13097 "0332 IOCB wait issue failed, Data x%x\n",
13099 retval = IOCB_ERROR;
13102 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
13103 if (lpfc_readl(phba->HCregaddr, &creg_val))
13105 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
13106 writel(creg_val, phba->HCregaddr);
13107 readl(phba->HCregaddr); /* flush */
13111 piocb->context2 = NULL;
13113 piocb->context_un.wait_queue = NULL;
13114 piocb->iocb_cmpl = NULL;
13119 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
13120 * @phba: Pointer to HBA context object.
13121 * @pmboxq: Pointer to driver mailbox object.
13122 * @timeout: Timeout in number of seconds.
13124 * This function issues the mailbox to firmware and waits for the
13125 * mailbox command to complete. If the mailbox command is not
13126 * completed within timeout seconds, it returns MBX_TIMEOUT.
13127 * The function waits for the mailbox completion using an
13128 * interruptible wait. If the thread is woken up due to a
13129 * signal, MBX_TIMEOUT error is returned to the caller. Caller
13130 * should not free the mailbox resources, if this function returns
13132 * This function will sleep while waiting for mailbox completion.
13133 * So, this function should not be called from any context which
13134 * does not allow sleeping. Due to the same reason, this function
13135 * cannot be called with interrupt disabled.
13136 * This function assumes that the mailbox completion occurs while
13137 * this function sleep. So, this function cannot be called from
13138 * the worker thread which processes mailbox completion.
13139 * This function is called in the context of HBA management
13141 * This function returns MBX_SUCCESS when successful.
13142 * This function is called with no lock held.
13145 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
13148 struct completion mbox_done;
13150 unsigned long flag;
13152 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
13153 /* setup wake call as IOCB callback */
13154 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
13156 /* setup context3 field to pass wait_queue pointer to wake function */
13157 init_completion(&mbox_done);
13158 pmboxq->context3 = &mbox_done;
13159 /* now issue the command */
13160 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
13161 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
13162 wait_for_completion_timeout(&mbox_done,
13163 msecs_to_jiffies(timeout * 1000));
13165 spin_lock_irqsave(&phba->hbalock, flag);
13166 pmboxq->context3 = NULL;
13168 * if LPFC_MBX_WAKE flag is set the mailbox is completed
13169 * else do not free the resources.
13171 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
13172 retval = MBX_SUCCESS;
13174 retval = MBX_TIMEOUT;
13175 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13177 spin_unlock_irqrestore(&phba->hbalock, flag);
13183 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
13184 * @phba: Pointer to HBA context.
13185 * @mbx_action: Mailbox shutdown options.
13187 * This function is called to shutdown the driver's mailbox sub-system.
13188 * It first marks the mailbox sub-system is in a block state to prevent
13189 * the asynchronous mailbox command from issued off the pending mailbox
13190 * command queue. If the mailbox command sub-system shutdown is due to
13191 * HBA error conditions such as EEH or ERATT, this routine shall invoke
13192 * the mailbox sub-system flush routine to forcefully bring down the
13193 * mailbox sub-system. Otherwise, if it is due to normal condition (such
13194 * as with offline or HBA function reset), this routine will wait for the
13195 * outstanding mailbox command to complete before invoking the mailbox
13196 * sub-system flush routine to gracefully bring down mailbox sub-system.
13199 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
13201 struct lpfc_sli *psli = &phba->sli;
13202 unsigned long timeout;
13204 if (mbx_action == LPFC_MBX_NO_WAIT) {
13205 /* delay 100ms for port state */
13207 lpfc_sli_mbox_sys_flush(phba);
13210 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
13212 /* Disable softirqs, including timers from obtaining phba->hbalock */
13213 local_bh_disable();
13215 spin_lock_irq(&phba->hbalock);
13216 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13218 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
13219 /* Determine how long we might wait for the active mailbox
13220 * command to be gracefully completed by firmware.
13222 if (phba->sli.mbox_active)
13223 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
13224 phba->sli.mbox_active) *
13226 spin_unlock_irq(&phba->hbalock);
13228 /* Enable softirqs again, done with phba->hbalock */
13231 while (phba->sli.mbox_active) {
13232 /* Check active mailbox complete status every 2ms */
13234 if (time_after(jiffies, timeout))
13235 /* Timeout, let the mailbox flush routine to
13236 * forcefully release active mailbox command
13241 spin_unlock_irq(&phba->hbalock);
13243 /* Enable softirqs again, done with phba->hbalock */
13247 lpfc_sli_mbox_sys_flush(phba);
13251 * lpfc_sli_eratt_read - read sli-3 error attention events
13252 * @phba: Pointer to HBA context.
13254 * This function is called to read the SLI3 device error attention registers
13255 * for possible error attention events. The caller must hold the hostlock
13256 * with spin_lock_irq().
13258 * This function returns 1 when there is Error Attention in the Host Attention
13259 * Register and returns 0 otherwise.
13262 lpfc_sli_eratt_read(struct lpfc_hba *phba)
13266 /* Read chip Host Attention (HA) register */
13267 if (lpfc_readl(phba->HAregaddr, &ha_copy))
13270 if (ha_copy & HA_ERATT) {
13271 /* Read host status register to retrieve error event */
13272 if (lpfc_sli_read_hs(phba))
13275 /* Check if there is a deferred error condition is active */
13276 if ((HS_FFER1 & phba->work_hs) &&
13277 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
13278 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
13279 phba->hba_flag |= DEFER_ERATT;
13280 /* Clear all interrupt enable conditions */
13281 writel(0, phba->HCregaddr);
13282 readl(phba->HCregaddr);
13285 /* Set the driver HA work bitmap */
13286 phba->work_ha |= HA_ERATT;
13287 /* Indicate polling handles this ERATT */
13288 phba->hba_flag |= HBA_ERATT_HANDLED;
13294 /* Set the driver HS work bitmap */
13295 phba->work_hs |= UNPLUG_ERR;
13296 /* Set the driver HA work bitmap */
13297 phba->work_ha |= HA_ERATT;
13298 /* Indicate polling handles this ERATT */
13299 phba->hba_flag |= HBA_ERATT_HANDLED;
13304 * lpfc_sli4_eratt_read - read sli-4 error attention events
13305 * @phba: Pointer to HBA context.
13307 * This function is called to read the SLI4 device error attention registers
13308 * for possible error attention events. The caller must hold the hostlock
13309 * with spin_lock_irq().
13311 * This function returns 1 when there is Error Attention in the Host Attention
13312 * Register and returns 0 otherwise.
13315 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
13317 uint32_t uerr_sta_hi, uerr_sta_lo;
13318 uint32_t if_type, portsmphr;
13319 struct lpfc_register portstat_reg;
13322 * For now, use the SLI4 device internal unrecoverable error
13323 * registers for error attention. This can be changed later.
13325 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
13327 case LPFC_SLI_INTF_IF_TYPE_0:
13328 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
13330 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
13332 phba->work_hs |= UNPLUG_ERR;
13333 phba->work_ha |= HA_ERATT;
13334 phba->hba_flag |= HBA_ERATT_HANDLED;
13337 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
13338 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
13339 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13340 "1423 HBA Unrecoverable error: "
13341 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
13342 "ue_mask_lo_reg=0x%x, "
13343 "ue_mask_hi_reg=0x%x\n",
13344 uerr_sta_lo, uerr_sta_hi,
13345 phba->sli4_hba.ue_mask_lo,
13346 phba->sli4_hba.ue_mask_hi);
13347 phba->work_status[0] = uerr_sta_lo;
13348 phba->work_status[1] = uerr_sta_hi;
13349 phba->work_ha |= HA_ERATT;
13350 phba->hba_flag |= HBA_ERATT_HANDLED;
13354 case LPFC_SLI_INTF_IF_TYPE_2:
13355 case LPFC_SLI_INTF_IF_TYPE_6:
13356 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
13357 &portstat_reg.word0) ||
13358 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
13360 phba->work_hs |= UNPLUG_ERR;
13361 phba->work_ha |= HA_ERATT;
13362 phba->hba_flag |= HBA_ERATT_HANDLED;
13365 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
13366 phba->work_status[0] =
13367 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
13368 phba->work_status[1] =
13369 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
13370 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13371 "2885 Port Status Event: "
13372 "port status reg 0x%x, "
13373 "port smphr reg 0x%x, "
13374 "error 1=0x%x, error 2=0x%x\n",
13375 portstat_reg.word0,
13377 phba->work_status[0],
13378 phba->work_status[1]);
13379 phba->work_ha |= HA_ERATT;
13380 phba->hba_flag |= HBA_ERATT_HANDLED;
13384 case LPFC_SLI_INTF_IF_TYPE_1:
13386 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13387 "2886 HBA Error Attention on unsupported "
13388 "if type %d.", if_type);
13396 * lpfc_sli_check_eratt - check error attention events
13397 * @phba: Pointer to HBA context.
13399 * This function is called from timer soft interrupt context to check HBA's
13400 * error attention register bit for error attention events.
13402 * This function returns 1 when there is Error Attention in the Host Attention
13403 * Register and returns 0 otherwise.
13406 lpfc_sli_check_eratt(struct lpfc_hba *phba)
13410 /* If somebody is waiting to handle an eratt, don't process it
13411 * here. The brdkill function will do this.
13413 if (phba->link_flag & LS_IGNORE_ERATT)
13416 /* Check if interrupt handler handles this ERATT */
13417 spin_lock_irq(&phba->hbalock);
13418 if (phba->hba_flag & HBA_ERATT_HANDLED) {
13419 /* Interrupt handler has handled ERATT */
13420 spin_unlock_irq(&phba->hbalock);
13425 * If there is deferred error attention, do not check for error
13428 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
13429 spin_unlock_irq(&phba->hbalock);
13433 /* If PCI channel is offline, don't process it */
13434 if (unlikely(pci_channel_offline(phba->pcidev))) {
13435 spin_unlock_irq(&phba->hbalock);
13439 switch (phba->sli_rev) {
13440 case LPFC_SLI_REV2:
13441 case LPFC_SLI_REV3:
13442 /* Read chip Host Attention (HA) register */
13443 ha_copy = lpfc_sli_eratt_read(phba);
13445 case LPFC_SLI_REV4:
13446 /* Read device Uncoverable Error (UERR) registers */
13447 ha_copy = lpfc_sli4_eratt_read(phba);
13450 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13451 "0299 Invalid SLI revision (%d)\n",
13456 spin_unlock_irq(&phba->hbalock);
13462 * lpfc_intr_state_check - Check device state for interrupt handling
13463 * @phba: Pointer to HBA context.
13465 * This inline routine checks whether a device or its PCI slot is in a state
13466 * that the interrupt should be handled.
13468 * This function returns 0 if the device or the PCI slot is in a state that
13469 * interrupt should be handled, otherwise -EIO.
13472 lpfc_intr_state_check(struct lpfc_hba *phba)
13474 /* If the pci channel is offline, ignore all the interrupts */
13475 if (unlikely(pci_channel_offline(phba->pcidev)))
13478 /* Update device level interrupt statistics */
13479 phba->sli.slistat.sli_intr++;
13481 /* Ignore all interrupts during initialization. */
13482 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
13489 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
13490 * @irq: Interrupt number.
13491 * @dev_id: The device context pointer.
13493 * This function is directly called from the PCI layer as an interrupt
13494 * service routine when device with SLI-3 interface spec is enabled with
13495 * MSI-X multi-message interrupt mode and there are slow-path events in
13496 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
13497 * interrupt mode, this function is called as part of the device-level
13498 * interrupt handler. When the PCI slot is in error recovery or the HBA
13499 * is undergoing initialization, the interrupt handler will not process
13500 * the interrupt. The link attention and ELS ring attention events are
13501 * handled by the worker thread. The interrupt handler signals the worker
13502 * thread and returns for these events. This function is called without
13503 * any lock held. It gets the hbalock to access and update SLI data
13506 * This function returns IRQ_HANDLED when interrupt is handled else it
13507 * returns IRQ_NONE.
13510 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
13512 struct lpfc_hba *phba;
13513 uint32_t ha_copy, hc_copy;
13514 uint32_t work_ha_copy;
13515 unsigned long status;
13516 unsigned long iflag;
13519 MAILBOX_t *mbox, *pmbox;
13520 struct lpfc_vport *vport;
13521 struct lpfc_nodelist *ndlp;
13522 struct lpfc_dmabuf *mp;
13527 * Get the driver's phba structure from the dev_id and
13528 * assume the HBA is not interrupting.
13530 phba = (struct lpfc_hba *)dev_id;
13532 if (unlikely(!phba))
13536 * Stuff needs to be attented to when this function is invoked as an
13537 * individual interrupt handler in MSI-X multi-message interrupt mode
13539 if (phba->intr_type == MSIX) {
13540 /* Check device state for handling interrupt */
13541 if (lpfc_intr_state_check(phba))
13543 /* Need to read HA REG for slow-path events */
13544 spin_lock_irqsave(&phba->hbalock, iflag);
13545 if (lpfc_readl(phba->HAregaddr, &ha_copy))
13547 /* If somebody is waiting to handle an eratt don't process it
13548 * here. The brdkill function will do this.
13550 if (phba->link_flag & LS_IGNORE_ERATT)
13551 ha_copy &= ~HA_ERATT;
13552 /* Check the need for handling ERATT in interrupt handler */
13553 if (ha_copy & HA_ERATT) {
13554 if (phba->hba_flag & HBA_ERATT_HANDLED)
13555 /* ERATT polling has handled ERATT */
13556 ha_copy &= ~HA_ERATT;
13558 /* Indicate interrupt handler handles ERATT */
13559 phba->hba_flag |= HBA_ERATT_HANDLED;
13563 * If there is deferred error attention, do not check for any
13566 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
13567 spin_unlock_irqrestore(&phba->hbalock, iflag);
13571 /* Clear up only attention source related to slow-path */
13572 if (lpfc_readl(phba->HCregaddr, &hc_copy))
13575 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
13576 HC_LAINT_ENA | HC_ERINT_ENA),
13578 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
13580 writel(hc_copy, phba->HCregaddr);
13581 readl(phba->HAregaddr); /* flush */
13582 spin_unlock_irqrestore(&phba->hbalock, iflag);
13584 ha_copy = phba->ha_copy;
13586 work_ha_copy = ha_copy & phba->work_ha_mask;
13588 if (work_ha_copy) {
13589 if (work_ha_copy & HA_LATT) {
13590 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
13592 * Turn off Link Attention interrupts
13593 * until CLEAR_LA done
13595 spin_lock_irqsave(&phba->hbalock, iflag);
13596 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
13597 if (lpfc_readl(phba->HCregaddr, &control))
13599 control &= ~HC_LAINT_ENA;
13600 writel(control, phba->HCregaddr);
13601 readl(phba->HCregaddr); /* flush */
13602 spin_unlock_irqrestore(&phba->hbalock, iflag);
13605 work_ha_copy &= ~HA_LATT;
13608 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
13610 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
13611 * the only slow ring.
13613 status = (work_ha_copy &
13614 (HA_RXMASK << (4*LPFC_ELS_RING)));
13615 status >>= (4*LPFC_ELS_RING);
13616 if (status & HA_RXMASK) {
13617 spin_lock_irqsave(&phba->hbalock, iflag);
13618 if (lpfc_readl(phba->HCregaddr, &control))
13621 lpfc_debugfs_slow_ring_trc(phba,
13622 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
13624 (uint32_t)phba->sli.slistat.sli_intr);
13626 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
13627 lpfc_debugfs_slow_ring_trc(phba,
13628 "ISR Disable ring:"
13629 "pwork:x%x hawork:x%x wait:x%x",
13630 phba->work_ha, work_ha_copy,
13631 (uint32_t)((unsigned long)
13632 &phba->work_waitq));
13635 ~(HC_R0INT_ENA << LPFC_ELS_RING);
13636 writel(control, phba->HCregaddr);
13637 readl(phba->HCregaddr); /* flush */
13640 lpfc_debugfs_slow_ring_trc(phba,
13641 "ISR slow ring: pwork:"
13642 "x%x hawork:x%x wait:x%x",
13643 phba->work_ha, work_ha_copy,
13644 (uint32_t)((unsigned long)
13645 &phba->work_waitq));
13647 spin_unlock_irqrestore(&phba->hbalock, iflag);
13650 spin_lock_irqsave(&phba->hbalock, iflag);
13651 if (work_ha_copy & HA_ERATT) {
13652 if (lpfc_sli_read_hs(phba))
13655 * Check if there is a deferred error condition
13658 if ((HS_FFER1 & phba->work_hs) &&
13659 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
13660 HS_FFER6 | HS_FFER7 | HS_FFER8) &
13662 phba->hba_flag |= DEFER_ERATT;
13663 /* Clear all interrupt enable conditions */
13664 writel(0, phba->HCregaddr);
13665 readl(phba->HCregaddr);
13669 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
13670 pmb = phba->sli.mbox_active;
13671 pmbox = &pmb->u.mb;
13673 vport = pmb->vport;
13675 /* First check out the status word */
13676 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
13677 if (pmbox->mbxOwner != OWN_HOST) {
13678 spin_unlock_irqrestore(&phba->hbalock, iflag);
13680 * Stray Mailbox Interrupt, mbxCommand <cmd>
13681 * mbxStatus <status>
13683 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13684 "(%d):0304 Stray Mailbox "
13685 "Interrupt mbxCommand x%x "
13687 (vport ? vport->vpi : 0),
13690 /* clear mailbox attention bit */
13691 work_ha_copy &= ~HA_MBATT;
13693 phba->sli.mbox_active = NULL;
13694 spin_unlock_irqrestore(&phba->hbalock, iflag);
13695 phba->last_completion_time = jiffies;
13696 del_timer(&phba->sli.mbox_tmo);
13697 if (pmb->mbox_cmpl) {
13698 lpfc_sli_pcimem_bcopy(mbox, pmbox,
13700 if (pmb->out_ext_byte_len &&
13702 lpfc_sli_pcimem_bcopy(
13705 pmb->out_ext_byte_len);
13707 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
13708 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
13710 lpfc_debugfs_disc_trc(vport,
13711 LPFC_DISC_TRC_MBOX_VPORT,
13712 "MBOX dflt rpi: : "
13713 "status:x%x rpi:x%x",
13714 (uint32_t)pmbox->mbxStatus,
13715 pmbox->un.varWords[0], 0);
13717 if (!pmbox->mbxStatus) {
13718 mp = (struct lpfc_dmabuf *)
13720 ndlp = (struct lpfc_nodelist *)
13723 /* Reg_LOGIN of dflt RPI was
13724 * successful. new lets get
13725 * rid of the RPI using the
13726 * same mbox buffer.
13728 lpfc_unreg_login(phba,
13730 pmbox->un.varWords[0],
13733 lpfc_mbx_cmpl_dflt_rpi;
13735 pmb->ctx_ndlp = ndlp;
13736 pmb->vport = vport;
13737 rc = lpfc_sli_issue_mbox(phba,
13740 if (rc != MBX_BUSY)
13741 lpfc_printf_log(phba,
13744 "0350 rc should have"
13745 "been MBX_BUSY\n");
13746 if (rc != MBX_NOT_FINISHED)
13747 goto send_current_mbox;
13751 &phba->pport->work_port_lock,
13753 phba->pport->work_port_events &=
13755 spin_unlock_irqrestore(
13756 &phba->pport->work_port_lock,
13759 /* Do NOT queue MBX_HEARTBEAT to the worker
13760 * thread for processing.
13762 if (pmbox->mbxCommand == MBX_HEARTBEAT) {
13763 /* Process mbox now */
13764 phba->sli.mbox_active = NULL;
13765 phba->sli.sli_flag &=
13766 ~LPFC_SLI_MBOX_ACTIVE;
13767 if (pmb->mbox_cmpl)
13768 pmb->mbox_cmpl(phba, pmb);
13770 /* Queue to worker thread to process */
13771 lpfc_mbox_cmpl_put(phba, pmb);
13775 spin_unlock_irqrestore(&phba->hbalock, iflag);
13777 if ((work_ha_copy & HA_MBATT) &&
13778 (phba->sli.mbox_active == NULL)) {
13780 /* Process next mailbox command if there is one */
13782 rc = lpfc_sli_issue_mbox(phba, NULL,
13784 } while (rc == MBX_NOT_FINISHED);
13785 if (rc != MBX_SUCCESS)
13786 lpfc_printf_log(phba, KERN_ERR,
13788 "0349 rc should be "
13792 spin_lock_irqsave(&phba->hbalock, iflag);
13793 phba->work_ha |= work_ha_copy;
13794 spin_unlock_irqrestore(&phba->hbalock, iflag);
13795 lpfc_worker_wake_up(phba);
13797 return IRQ_HANDLED;
13799 spin_unlock_irqrestore(&phba->hbalock, iflag);
13800 return IRQ_HANDLED;
13802 } /* lpfc_sli_sp_intr_handler */
13805 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
13806 * @irq: Interrupt number.
13807 * @dev_id: The device context pointer.
13809 * This function is directly called from the PCI layer as an interrupt
13810 * service routine when device with SLI-3 interface spec is enabled with
13811 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
13812 * ring event in the HBA. However, when the device is enabled with either
13813 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13814 * device-level interrupt handler. When the PCI slot is in error recovery
13815 * or the HBA is undergoing initialization, the interrupt handler will not
13816 * process the interrupt. The SCSI FCP fast-path ring event are handled in
13817 * the intrrupt context. This function is called without any lock held.
13818 * It gets the hbalock to access and update SLI data structures.
13820 * This function returns IRQ_HANDLED when interrupt is handled else it
13821 * returns IRQ_NONE.
13824 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
13826 struct lpfc_hba *phba;
13828 unsigned long status;
13829 unsigned long iflag;
13830 struct lpfc_sli_ring *pring;
13832 /* Get the driver's phba structure from the dev_id and
13833 * assume the HBA is not interrupting.
13835 phba = (struct lpfc_hba *) dev_id;
13837 if (unlikely(!phba))
13841 * Stuff needs to be attented to when this function is invoked as an
13842 * individual interrupt handler in MSI-X multi-message interrupt mode
13844 if (phba->intr_type == MSIX) {
13845 /* Check device state for handling interrupt */
13846 if (lpfc_intr_state_check(phba))
13848 /* Need to read HA REG for FCP ring and other ring events */
13849 if (lpfc_readl(phba->HAregaddr, &ha_copy))
13850 return IRQ_HANDLED;
13851 /* Clear up only attention source related to fast-path */
13852 spin_lock_irqsave(&phba->hbalock, iflag);
13854 * If there is deferred error attention, do not check for
13857 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
13858 spin_unlock_irqrestore(&phba->hbalock, iflag);
13861 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
13863 readl(phba->HAregaddr); /* flush */
13864 spin_unlock_irqrestore(&phba->hbalock, iflag);
13866 ha_copy = phba->ha_copy;
13869 * Process all events on FCP ring. Take the optimized path for FCP IO.
13871 ha_copy &= ~(phba->work_ha_mask);
13873 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
13874 status >>= (4*LPFC_FCP_RING);
13875 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
13876 if (status & HA_RXMASK)
13877 lpfc_sli_handle_fast_ring_event(phba, pring, status);
13879 if (phba->cfg_multi_ring_support == 2) {
13881 * Process all events on extra ring. Take the optimized path
13882 * for extra ring IO.
13884 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
13885 status >>= (4*LPFC_EXTRA_RING);
13886 if (status & HA_RXMASK) {
13887 lpfc_sli_handle_fast_ring_event(phba,
13888 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
13892 return IRQ_HANDLED;
13893 } /* lpfc_sli_fp_intr_handler */
13896 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
13897 * @irq: Interrupt number.
13898 * @dev_id: The device context pointer.
13900 * This function is the HBA device-level interrupt handler to device with
13901 * SLI-3 interface spec, called from the PCI layer when either MSI or
13902 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
13903 * requires driver attention. This function invokes the slow-path interrupt
13904 * attention handling function and fast-path interrupt attention handling
13905 * function in turn to process the relevant HBA attention events. This
13906 * function is called without any lock held. It gets the hbalock to access
13907 * and update SLI data structures.
13909 * This function returns IRQ_HANDLED when interrupt is handled, else it
13910 * returns IRQ_NONE.
13913 lpfc_sli_intr_handler(int irq, void *dev_id)
13915 struct lpfc_hba *phba;
13916 irqreturn_t sp_irq_rc, fp_irq_rc;
13917 unsigned long status1, status2;
13921 * Get the driver's phba structure from the dev_id and
13922 * assume the HBA is not interrupting.
13924 phba = (struct lpfc_hba *) dev_id;
13926 if (unlikely(!phba))
13929 /* Check device state for handling interrupt */
13930 if (lpfc_intr_state_check(phba))
13933 spin_lock(&phba->hbalock);
13934 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
13935 spin_unlock(&phba->hbalock);
13936 return IRQ_HANDLED;
13939 if (unlikely(!phba->ha_copy)) {
13940 spin_unlock(&phba->hbalock);
13942 } else if (phba->ha_copy & HA_ERATT) {
13943 if (phba->hba_flag & HBA_ERATT_HANDLED)
13944 /* ERATT polling has handled ERATT */
13945 phba->ha_copy &= ~HA_ERATT;
13947 /* Indicate interrupt handler handles ERATT */
13948 phba->hba_flag |= HBA_ERATT_HANDLED;
13952 * If there is deferred error attention, do not check for any interrupt.
13954 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
13955 spin_unlock(&phba->hbalock);
13959 /* Clear attention sources except link and error attentions */
13960 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
13961 spin_unlock(&phba->hbalock);
13962 return IRQ_HANDLED;
13964 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
13965 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
13967 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
13968 writel(hc_copy, phba->HCregaddr);
13969 readl(phba->HAregaddr); /* flush */
13970 spin_unlock(&phba->hbalock);
13973 * Invokes slow-path host attention interrupt handling as appropriate.
13976 /* status of events with mailbox and link attention */
13977 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
13979 /* status of events with ELS ring */
13980 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
13981 status2 >>= (4*LPFC_ELS_RING);
13983 if (status1 || (status2 & HA_RXMASK))
13984 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
13986 sp_irq_rc = IRQ_NONE;
13989 * Invoke fast-path host attention interrupt handling as appropriate.
13992 /* status of events with FCP ring */
13993 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
13994 status1 >>= (4*LPFC_FCP_RING);
13996 /* status of events with extra ring */
13997 if (phba->cfg_multi_ring_support == 2) {
13998 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
13999 status2 >>= (4*LPFC_EXTRA_RING);
14003 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
14004 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
14006 fp_irq_rc = IRQ_NONE;
14008 /* Return device-level interrupt handling status */
14009 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
14010 } /* lpfc_sli_intr_handler */
14013 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
14014 * @phba: pointer to lpfc hba data structure.
14016 * This routine is invoked by the worker thread to process all the pending
14017 * SLI4 els abort xri events.
14019 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
14021 struct lpfc_cq_event *cq_event;
14022 unsigned long iflags;
14024 /* First, declare the els xri abort event has been handled */
14025 spin_lock_irqsave(&phba->hbalock, iflags);
14026 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
14027 spin_unlock_irqrestore(&phba->hbalock, iflags);
14029 /* Now, handle all the els xri abort events */
14030 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
14031 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
14032 /* Get the first event from the head of the event queue */
14033 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
14034 cq_event, struct lpfc_cq_event, list);
14035 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock,
14037 /* Notify aborted XRI for ELS work queue */
14038 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
14040 /* Free the event processed back to the free pool */
14041 lpfc_sli4_cq_event_release(phba, cq_event);
14042 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock,
14045 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
14049 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
14050 * @phba: pointer to lpfc hba data structure
14051 * @pIocbIn: pointer to the rspiocbq
14052 * @pIocbOut: pointer to the cmdiocbq
14053 * @wcqe: pointer to the complete wcqe
14055 * This routine transfers the fields of a command iocbq to a response iocbq
14056 * by copying all the IOCB fields from command iocbq and transferring the
14057 * completion status information from the complete wcqe.
14060 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
14061 struct lpfc_iocbq *pIocbIn,
14062 struct lpfc_iocbq *pIocbOut,
14063 struct lpfc_wcqe_complete *wcqe)
14066 unsigned long iflags;
14067 uint32_t status, max_response;
14068 struct lpfc_dmabuf *dmabuf;
14069 struct ulp_bde64 *bpl, bde;
14070 size_t offset = offsetof(struct lpfc_iocbq, iocb);
14072 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
14073 sizeof(struct lpfc_iocbq) - offset);
14074 /* Map WCQE parameters into irspiocb parameters */
14075 status = bf_get(lpfc_wcqe_c_status, wcqe);
14076 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
14077 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
14078 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
14079 pIocbIn->iocb.un.fcpi.fcpi_parm =
14080 pIocbOut->iocb.un.fcpi.fcpi_parm -
14081 wcqe->total_data_placed;
14083 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
14085 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
14086 switch (pIocbOut->iocb.ulpCommand) {
14087 case CMD_ELS_REQUEST64_CR:
14088 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
14089 bpl = (struct ulp_bde64 *)dmabuf->virt;
14090 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
14091 max_response = bde.tus.f.bdeSize;
14093 case CMD_GEN_REQUEST64_CR:
14095 if (!pIocbOut->context3)
14097 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
14098 sizeof(struct ulp_bde64);
14099 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
14100 bpl = (struct ulp_bde64 *)dmabuf->virt;
14101 for (i = 0; i < numBdes; i++) {
14102 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
14103 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
14104 max_response += bde.tus.f.bdeSize;
14108 max_response = wcqe->total_data_placed;
14111 if (max_response < wcqe->total_data_placed)
14112 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
14114 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
14115 wcqe->total_data_placed;
14118 /* Convert BG errors for completion status */
14119 if (status == CQE_STATUS_DI_ERROR) {
14120 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
14122 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
14123 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
14125 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
14127 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
14128 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
14129 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
14130 BGS_GUARD_ERR_MASK;
14131 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
14132 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
14133 BGS_APPTAG_ERR_MASK;
14134 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
14135 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
14136 BGS_REFTAG_ERR_MASK;
14138 /* Check to see if there was any good data before the error */
14139 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
14140 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
14141 BGS_HI_WATER_MARK_PRESENT_MASK;
14142 pIocbIn->iocb.unsli3.sli3_bg.bghm =
14143 wcqe->total_data_placed;
14147 * Set ALL the error bits to indicate we don't know what
14148 * type of error it is.
14150 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
14151 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
14152 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
14153 BGS_GUARD_ERR_MASK);
14156 /* Pick up HBA exchange busy condition */
14157 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
14158 spin_lock_irqsave(&phba->hbalock, iflags);
14159 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
14160 spin_unlock_irqrestore(&phba->hbalock, iflags);
14165 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
14166 * @phba: Pointer to HBA context object.
14167 * @irspiocbq: Pointer to work-queue completion queue entry.
14169 * This routine handles an ELS work-queue completion event and construct
14170 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
14171 * discovery engine to handle.
14173 * Return: Pointer to the receive IOCBQ, NULL otherwise.
14175 static struct lpfc_iocbq *
14176 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
14177 struct lpfc_iocbq *irspiocbq)
14179 struct lpfc_sli_ring *pring;
14180 struct lpfc_iocbq *cmdiocbq;
14181 struct lpfc_wcqe_complete *wcqe;
14182 unsigned long iflags;
14184 pring = lpfc_phba_elsring(phba);
14185 if (unlikely(!pring))
14188 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
14189 pring->stats.iocb_event++;
14190 /* Look up the ELS command IOCB and create pseudo response IOCB */
14191 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
14192 bf_get(lpfc_wcqe_c_request_tag, wcqe));
14193 if (unlikely(!cmdiocbq)) {
14194 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14195 "0386 ELS complete with no corresponding "
14196 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
14197 wcqe->word0, wcqe->total_data_placed,
14198 wcqe->parameter, wcqe->word3);
14199 lpfc_sli_release_iocbq(phba, irspiocbq);
14203 spin_lock_irqsave(&pring->ring_lock, iflags);
14204 /* Put the iocb back on the txcmplq */
14205 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
14206 spin_unlock_irqrestore(&pring->ring_lock, iflags);
14208 /* Fake the irspiocbq and copy necessary response information */
14209 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
14214 inline struct lpfc_cq_event *
14215 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
14217 struct lpfc_cq_event *cq_event;
14219 /* Allocate a new internal CQ_EVENT entry */
14220 cq_event = lpfc_sli4_cq_event_alloc(phba);
14222 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14223 "0602 Failed to alloc CQ_EVENT entry\n");
14227 /* Move the CQE into the event */
14228 memcpy(&cq_event->cqe, entry, size);
14233 * lpfc_sli4_sp_handle_async_event - Handle an asynchronous event
14234 * @phba: Pointer to HBA context object.
14235 * @mcqe: Pointer to mailbox completion queue entry.
14237 * This routine process a mailbox completion queue entry with asynchronous
14240 * Return: true if work posted to worker thread, otherwise false.
14243 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
14245 struct lpfc_cq_event *cq_event;
14246 unsigned long iflags;
14248 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
14249 "0392 Async Event: word0:x%x, word1:x%x, "
14250 "word2:x%x, word3:x%x\n", mcqe->word0,
14251 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
14253 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
14257 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
14258 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
14259 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
14261 /* Set the async event flag */
14262 spin_lock_irqsave(&phba->hbalock, iflags);
14263 phba->hba_flag |= ASYNC_EVENT;
14264 spin_unlock_irqrestore(&phba->hbalock, iflags);
14270 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
14271 * @phba: Pointer to HBA context object.
14272 * @mcqe: Pointer to mailbox completion queue entry.
14274 * This routine process a mailbox completion queue entry with mailbox
14275 * completion event.
14277 * Return: true if work posted to worker thread, otherwise false.
14280 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
14282 uint32_t mcqe_status;
14283 MAILBOX_t *mbox, *pmbox;
14284 struct lpfc_mqe *mqe;
14285 struct lpfc_vport *vport;
14286 struct lpfc_nodelist *ndlp;
14287 struct lpfc_dmabuf *mp;
14288 unsigned long iflags;
14290 bool workposted = false;
14293 /* If not a mailbox complete MCQE, out by checking mailbox consume */
14294 if (!bf_get(lpfc_trailer_completed, mcqe))
14295 goto out_no_mqe_complete;
14297 /* Get the reference to the active mbox command */
14298 spin_lock_irqsave(&phba->hbalock, iflags);
14299 pmb = phba->sli.mbox_active;
14300 if (unlikely(!pmb)) {
14301 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14302 "1832 No pending MBOX command to handle\n");
14303 spin_unlock_irqrestore(&phba->hbalock, iflags);
14304 goto out_no_mqe_complete;
14306 spin_unlock_irqrestore(&phba->hbalock, iflags);
14308 pmbox = (MAILBOX_t *)&pmb->u.mqe;
14310 vport = pmb->vport;
14312 /* Reset heartbeat timer */
14313 phba->last_completion_time = jiffies;
14314 del_timer(&phba->sli.mbox_tmo);
14316 /* Move mbox data to caller's mailbox region, do endian swapping */
14317 if (pmb->mbox_cmpl && mbox)
14318 lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
14321 * For mcqe errors, conditionally move a modified error code to
14322 * the mbox so that the error will not be missed.
14324 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
14325 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
14326 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
14327 bf_set(lpfc_mqe_status, mqe,
14328 (LPFC_MBX_ERROR_RANGE | mcqe_status));
14330 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
14331 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
14332 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
14333 "MBOX dflt rpi: status:x%x rpi:x%x",
14335 pmbox->un.varWords[0], 0);
14336 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
14337 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
14338 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
14340 /* Reg_LOGIN of dflt RPI was successful. Mark the
14341 * node as having an UNREG_LOGIN in progress to stop
14342 * an unsolicited PLOGI from the same NPortId from
14343 * starting another mailbox transaction.
14345 spin_lock_irqsave(&ndlp->lock, iflags);
14346 ndlp->nlp_flag |= NLP_UNREG_INP;
14347 spin_unlock_irqrestore(&ndlp->lock, iflags);
14348 lpfc_unreg_login(phba, vport->vpi,
14349 pmbox->un.varWords[0], pmb);
14350 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
14353 /* No reference taken here. This is a default
14354 * RPI reg/immediate unreg cycle. The reference was
14355 * taken in the reg rpi path and is released when
14356 * this mailbox completes.
14358 pmb->ctx_ndlp = ndlp;
14359 pmb->vport = vport;
14360 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
14361 if (rc != MBX_BUSY)
14362 lpfc_printf_log(phba, KERN_ERR,
14365 "have been MBX_BUSY\n");
14366 if (rc != MBX_NOT_FINISHED)
14367 goto send_current_mbox;
14370 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
14371 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
14372 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
14374 /* Do NOT queue MBX_HEARTBEAT to the worker thread for processing. */
14375 if (pmbox->mbxCommand == MBX_HEARTBEAT) {
14376 spin_lock_irqsave(&phba->hbalock, iflags);
14377 /* Release the mailbox command posting token */
14378 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
14379 phba->sli.mbox_active = NULL;
14380 if (bf_get(lpfc_trailer_consumed, mcqe))
14381 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
14382 spin_unlock_irqrestore(&phba->hbalock, iflags);
14384 /* Post the next mbox command, if there is one */
14385 lpfc_sli4_post_async_mbox(phba);
14387 /* Process cmpl now */
14388 if (pmb->mbox_cmpl)
14389 pmb->mbox_cmpl(phba, pmb);
14393 /* There is mailbox completion work to queue to the worker thread */
14394 spin_lock_irqsave(&phba->hbalock, iflags);
14395 __lpfc_mbox_cmpl_put(phba, pmb);
14396 phba->work_ha |= HA_MBATT;
14397 spin_unlock_irqrestore(&phba->hbalock, iflags);
14401 spin_lock_irqsave(&phba->hbalock, iflags);
14402 /* Release the mailbox command posting token */
14403 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
14404 /* Setting active mailbox pointer need to be in sync to flag clear */
14405 phba->sli.mbox_active = NULL;
14406 if (bf_get(lpfc_trailer_consumed, mcqe))
14407 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
14408 spin_unlock_irqrestore(&phba->hbalock, iflags);
14409 /* Wake up worker thread to post the next pending mailbox command */
14410 lpfc_worker_wake_up(phba);
14413 out_no_mqe_complete:
14414 spin_lock_irqsave(&phba->hbalock, iflags);
14415 if (bf_get(lpfc_trailer_consumed, mcqe))
14416 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
14417 spin_unlock_irqrestore(&phba->hbalock, iflags);
14422 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
14423 * @phba: Pointer to HBA context object.
14424 * @cq: Pointer to associated CQ
14425 * @cqe: Pointer to mailbox completion queue entry.
14427 * This routine process a mailbox completion queue entry, it invokes the
14428 * proper mailbox complete handling or asynchronous event handling routine
14429 * according to the MCQE's async bit.
14431 * Return: true if work posted to worker thread, otherwise false.
14434 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14435 struct lpfc_cqe *cqe)
14437 struct lpfc_mcqe mcqe;
14442 /* Copy the mailbox MCQE and convert endian order as needed */
14443 lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
14445 /* Invoke the proper event handling routine */
14446 if (!bf_get(lpfc_trailer_async, &mcqe))
14447 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
14449 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
14454 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
14455 * @phba: Pointer to HBA context object.
14456 * @cq: Pointer to associated CQ
14457 * @wcqe: Pointer to work-queue completion queue entry.
14459 * This routine handles an ELS work-queue completion event.
14461 * Return: true if work posted to worker thread, otherwise false.
14464 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14465 struct lpfc_wcqe_complete *wcqe)
14467 struct lpfc_iocbq *irspiocbq;
14468 unsigned long iflags;
14469 struct lpfc_sli_ring *pring = cq->pring;
14471 int txcmplq_cnt = 0;
14473 /* Check for response status */
14474 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
14475 /* Log the error status */
14476 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
14477 "0357 ELS CQE error: status=x%x: "
14478 "CQE: %08x %08x %08x %08x\n",
14479 bf_get(lpfc_wcqe_c_status, wcqe),
14480 wcqe->word0, wcqe->total_data_placed,
14481 wcqe->parameter, wcqe->word3);
14484 /* Get an irspiocbq for later ELS response processing use */
14485 irspiocbq = lpfc_sli_get_iocbq(phba);
14487 if (!list_empty(&pring->txq))
14489 if (!list_empty(&pring->txcmplq))
14491 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14492 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
14493 "els_txcmplq_cnt=%d\n",
14494 txq_cnt, phba->iocb_cnt,
14499 /* Save off the slow-path queue event for work thread to process */
14500 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
14501 spin_lock_irqsave(&phba->hbalock, iflags);
14502 list_add_tail(&irspiocbq->cq_event.list,
14503 &phba->sli4_hba.sp_queue_event);
14504 phba->hba_flag |= HBA_SP_QUEUE_EVT;
14505 spin_unlock_irqrestore(&phba->hbalock, iflags);
14511 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
14512 * @phba: Pointer to HBA context object.
14513 * @wcqe: Pointer to work-queue completion queue entry.
14515 * This routine handles slow-path WQ entry consumed event by invoking the
14516 * proper WQ release routine to the slow-path WQ.
14519 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
14520 struct lpfc_wcqe_release *wcqe)
14522 /* sanity check on queue memory */
14523 if (unlikely(!phba->sli4_hba.els_wq))
14525 /* Check for the slow-path ELS work queue */
14526 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
14527 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
14528 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
14530 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14531 "2579 Slow-path wqe consume event carries "
14532 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
14533 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
14534 phba->sli4_hba.els_wq->queue_id);
14538 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
14539 * @phba: Pointer to HBA context object.
14540 * @cq: Pointer to a WQ completion queue.
14541 * @wcqe: Pointer to work-queue completion queue entry.
14543 * This routine handles an XRI abort event.
14545 * Return: true if work posted to worker thread, otherwise false.
14548 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
14549 struct lpfc_queue *cq,
14550 struct sli4_wcqe_xri_aborted *wcqe)
14552 bool workposted = false;
14553 struct lpfc_cq_event *cq_event;
14554 unsigned long iflags;
14556 switch (cq->subtype) {
14558 lpfc_sli4_io_xri_aborted(phba, wcqe, cq->hdwq);
14559 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14560 /* Notify aborted XRI for NVME work queue */
14561 if (phba->nvmet_support)
14562 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
14564 workposted = false;
14566 case LPFC_NVME_LS: /* NVME LS uses ELS resources */
14568 cq_event = lpfc_cq_event_setup(phba, wcqe, sizeof(*wcqe));
14570 workposted = false;
14573 cq_event->hdwq = cq->hdwq;
14574 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock,
14576 list_add_tail(&cq_event->list,
14577 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
14578 /* Set the els xri abort event flag */
14579 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
14580 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock,
14585 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14586 "0603 Invalid CQ subtype %d: "
14587 "%08x %08x %08x %08x\n",
14588 cq->subtype, wcqe->word0, wcqe->parameter,
14589 wcqe->word2, wcqe->word3);
14590 workposted = false;
14596 #define FC_RCTL_MDS_DIAGS 0xF4
14599 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
14600 * @phba: Pointer to HBA context object.
14601 * @rcqe: Pointer to receive-queue completion queue entry.
14603 * This routine process a receive-queue completion queue entry.
14605 * Return: true if work posted to worker thread, otherwise false.
14608 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
14610 bool workposted = false;
14611 struct fc_frame_header *fc_hdr;
14612 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
14613 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
14614 struct lpfc_nvmet_tgtport *tgtp;
14615 struct hbq_dmabuf *dma_buf;
14616 uint32_t status, rq_id;
14617 unsigned long iflags;
14619 /* sanity check on queue memory */
14620 if (unlikely(!hrq) || unlikely(!drq))
14623 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
14624 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
14626 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
14627 if (rq_id != hrq->queue_id)
14630 status = bf_get(lpfc_rcqe_status, rcqe);
14632 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
14633 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14634 "2537 Receive Frame Truncated!!\n");
14636 case FC_STATUS_RQ_SUCCESS:
14637 spin_lock_irqsave(&phba->hbalock, iflags);
14638 lpfc_sli4_rq_release(hrq, drq);
14639 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
14641 hrq->RQ_no_buf_found++;
14642 spin_unlock_irqrestore(&phba->hbalock, iflags);
14646 hrq->RQ_buf_posted--;
14647 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
14649 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
14651 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
14652 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
14653 spin_unlock_irqrestore(&phba->hbalock, iflags);
14654 /* Handle MDS Loopback frames */
14655 if (!(phba->pport->load_flag & FC_UNLOADING))
14656 lpfc_sli4_handle_mds_loopback(phba->pport,
14659 lpfc_in_buf_free(phba, &dma_buf->dbuf);
14663 /* save off the frame for the work thread to process */
14664 list_add_tail(&dma_buf->cq_event.list,
14665 &phba->sli4_hba.sp_queue_event);
14666 /* Frame received */
14667 phba->hba_flag |= HBA_SP_QUEUE_EVT;
14668 spin_unlock_irqrestore(&phba->hbalock, iflags);
14671 case FC_STATUS_INSUFF_BUF_FRM_DISC:
14672 if (phba->nvmet_support) {
14673 tgtp = phba->targetport->private;
14674 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14675 "6402 RQE Error x%x, posted %d err_cnt "
14677 status, hrq->RQ_buf_posted,
14678 hrq->RQ_no_posted_buf,
14679 atomic_read(&tgtp->rcv_fcp_cmd_in),
14680 atomic_read(&tgtp->rcv_fcp_cmd_out),
14681 atomic_read(&tgtp->xmt_fcp_release));
14685 case FC_STATUS_INSUFF_BUF_NEED_BUF:
14686 hrq->RQ_no_posted_buf++;
14687 /* Post more buffers if possible */
14688 spin_lock_irqsave(&phba->hbalock, iflags);
14689 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
14690 spin_unlock_irqrestore(&phba->hbalock, iflags);
14699 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
14700 * @phba: Pointer to HBA context object.
14701 * @cq: Pointer to the completion queue.
14702 * @cqe: Pointer to a completion queue entry.
14704 * This routine process a slow-path work-queue or receive queue completion queue
14707 * Return: true if work posted to worker thread, otherwise false.
14710 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14711 struct lpfc_cqe *cqe)
14713 struct lpfc_cqe cqevt;
14714 bool workposted = false;
14716 /* Copy the work queue CQE and convert endian order if needed */
14717 lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
14719 /* Check and process for different type of WCQE and dispatch */
14720 switch (bf_get(lpfc_cqe_code, &cqevt)) {
14721 case CQE_CODE_COMPL_WQE:
14722 /* Process the WQ/RQ complete event */
14723 phba->last_completion_time = jiffies;
14724 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
14725 (struct lpfc_wcqe_complete *)&cqevt);
14727 case CQE_CODE_RELEASE_WQE:
14728 /* Process the WQ release event */
14729 lpfc_sli4_sp_handle_rel_wcqe(phba,
14730 (struct lpfc_wcqe_release *)&cqevt);
14732 case CQE_CODE_XRI_ABORTED:
14733 /* Process the WQ XRI abort event */
14734 phba->last_completion_time = jiffies;
14735 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
14736 (struct sli4_wcqe_xri_aborted *)&cqevt);
14738 case CQE_CODE_RECEIVE:
14739 case CQE_CODE_RECEIVE_V1:
14740 /* Process the RQ event */
14741 phba->last_completion_time = jiffies;
14742 workposted = lpfc_sli4_sp_handle_rcqe(phba,
14743 (struct lpfc_rcqe *)&cqevt);
14746 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14747 "0388 Not a valid WCQE code: x%x\n",
14748 bf_get(lpfc_cqe_code, &cqevt));
14755 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
14756 * @phba: Pointer to HBA context object.
14757 * @eqe: Pointer to fast-path event queue entry.
14758 * @speq: Pointer to slow-path event queue.
14760 * This routine process a event queue entry from the slow-path event queue.
14761 * It will check the MajorCode and MinorCode to determine this is for a
14762 * completion event on a completion queue, if not, an error shall be logged
14763 * and just return. Otherwise, it will get to the corresponding completion
14764 * queue and process all the entries on that completion queue, rearm the
14765 * completion queue, and then return.
14769 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
14770 struct lpfc_queue *speq)
14772 struct lpfc_queue *cq = NULL, *childq;
14776 /* Get the reference to the corresponding CQ */
14777 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14779 list_for_each_entry(childq, &speq->child_list, list) {
14780 if (childq->queue_id == cqid) {
14785 if (unlikely(!cq)) {
14786 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
14787 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14788 "0365 Slow-path CQ identifier "
14789 "(%d) does not exist\n", cqid);
14793 /* Save EQ associated with this CQ */
14794 cq->assoc_qp = speq;
14796 if (is_kdump_kernel())
14797 ret = queue_work(phba->wq, &cq->spwork);
14799 ret = queue_work_on(cq->chann, phba->wq, &cq->spwork);
14802 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14803 "0390 Cannot schedule queue work "
14804 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14805 cqid, cq->queue_id, raw_smp_processor_id());
14809 * __lpfc_sli4_process_cq - Process elements of a CQ
14810 * @phba: Pointer to HBA context object.
14811 * @cq: Pointer to CQ to be processed
14812 * @handler: Routine to process each cqe
14813 * @delay: Pointer to usdelay to set in case of rescheduling of the handler
14814 * @poll_mode: Polling mode we were called from
14816 * This routine processes completion queue entries in a CQ. While a valid
14817 * queue element is found, the handler is called. During processing checks
14818 * are made for periodic doorbell writes to let the hardware know of
14819 * element consumption.
14821 * If the max limit on cqes to process is hit, or there are no more valid
14822 * entries, the loop stops. If we processed a sufficient number of elements,
14823 * meaning there is sufficient load, rather than rearming and generating
14824 * another interrupt, a cq rescheduling delay will be set. A delay of 0
14825 * indicates no rescheduling.
14827 * Returns True if work scheduled, False otherwise.
14830 __lpfc_sli4_process_cq(struct lpfc_hba *phba, struct lpfc_queue *cq,
14831 bool (*handler)(struct lpfc_hba *, struct lpfc_queue *,
14832 struct lpfc_cqe *), unsigned long *delay,
14833 enum lpfc_poll_mode poll_mode)
14835 struct lpfc_cqe *cqe;
14836 bool workposted = false;
14837 int count = 0, consumed = 0;
14840 /* default - no reschedule */
14843 if (cmpxchg(&cq->queue_claimed, 0, 1) != 0)
14844 goto rearm_and_exit;
14846 /* Process all the entries to the CQ */
14848 cqe = lpfc_sli4_cq_get(cq);
14850 workposted |= handler(phba, cq, cqe);
14851 __lpfc_sli4_consume_cqe(phba, cq, cqe);
14854 if (!(++count % cq->max_proc_limit))
14857 if (!(count % cq->notify_interval)) {
14858 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
14861 cq->assoc_qp->q_flag |= HBA_EQ_DELAY_CHK;
14864 if (count == LPFC_NVMET_CQ_NOTIFY)
14865 cq->q_flag |= HBA_NVMET_CQ_NOTIFY;
14867 cqe = lpfc_sli4_cq_get(cq);
14869 if (count >= phba->cfg_cq_poll_threshold) {
14874 /* Note: complete the irq_poll softirq before rearming CQ */
14875 if (poll_mode == LPFC_IRQ_POLL)
14876 irq_poll_complete(&cq->iop);
14878 /* Track the max number of CQEs processed in 1 EQ */
14879 if (count > cq->CQ_max_cqe)
14880 cq->CQ_max_cqe = count;
14882 cq->assoc_qp->EQ_cqe_cnt += count;
14884 /* Catch the no cq entry condition */
14885 if (unlikely(count == 0))
14886 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
14887 "0369 No entry from completion queue "
14888 "qid=%d\n", cq->queue_id);
14890 xchg(&cq->queue_claimed, 0);
14893 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
14894 arm ? LPFC_QUEUE_REARM : LPFC_QUEUE_NOARM);
14900 * __lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
14901 * @cq: pointer to CQ to process
14903 * This routine calls the cq processing routine with a handler specific
14904 * to the type of queue bound to it.
14906 * The CQ routine returns two values: the first is the calling status,
14907 * which indicates whether work was queued to the background discovery
14908 * thread. If true, the routine should wakeup the discovery thread;
14909 * the second is the delay parameter. If non-zero, rather than rearming
14910 * the CQ and yet another interrupt, the CQ handler should be queued so
14911 * that it is processed in a subsequent polling action. The value of
14912 * the delay indicates when to reschedule it.
14915 __lpfc_sli4_sp_process_cq(struct lpfc_queue *cq)
14917 struct lpfc_hba *phba = cq->phba;
14918 unsigned long delay;
14919 bool workposted = false;
14922 /* Process and rearm the CQ */
14923 switch (cq->type) {
14925 workposted |= __lpfc_sli4_process_cq(phba, cq,
14926 lpfc_sli4_sp_handle_mcqe,
14927 &delay, LPFC_QUEUE_WORK);
14930 if (cq->subtype == LPFC_IO)
14931 workposted |= __lpfc_sli4_process_cq(phba, cq,
14932 lpfc_sli4_fp_handle_cqe,
14933 &delay, LPFC_QUEUE_WORK);
14935 workposted |= __lpfc_sli4_process_cq(phba, cq,
14936 lpfc_sli4_sp_handle_cqe,
14937 &delay, LPFC_QUEUE_WORK);
14940 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14941 "0370 Invalid completion queue type (%d)\n",
14947 if (is_kdump_kernel())
14948 ret = queue_delayed_work(phba->wq, &cq->sched_spwork,
14951 ret = queue_delayed_work_on(cq->chann, phba->wq,
14952 &cq->sched_spwork, delay);
14954 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14955 "0394 Cannot schedule queue work "
14956 "for cqid=%d on CPU %d\n",
14957 cq->queue_id, cq->chann);
14960 /* wake up worker thread if there are works to be done */
14962 lpfc_worker_wake_up(phba);
14966 * lpfc_sli4_sp_process_cq - slow-path work handler when started by
14968 * @work: pointer to work element
14970 * translates from the work handler and calls the slow-path handler.
14973 lpfc_sli4_sp_process_cq(struct work_struct *work)
14975 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, spwork);
14977 __lpfc_sli4_sp_process_cq(cq);
14981 * lpfc_sli4_dly_sp_process_cq - slow-path work handler when started by timer
14982 * @work: pointer to work element
14984 * translates from the work handler and calls the slow-path handler.
14987 lpfc_sli4_dly_sp_process_cq(struct work_struct *work)
14989 struct lpfc_queue *cq = container_of(to_delayed_work(work),
14990 struct lpfc_queue, sched_spwork);
14992 __lpfc_sli4_sp_process_cq(cq);
14996 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
14997 * @phba: Pointer to HBA context object.
14998 * @cq: Pointer to associated CQ
14999 * @wcqe: Pointer to work-queue completion queue entry.
15001 * This routine process a fast-path work queue completion entry from fast-path
15002 * event queue for FCP command response completion.
15005 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
15006 struct lpfc_wcqe_complete *wcqe)
15008 struct lpfc_sli_ring *pring = cq->pring;
15009 struct lpfc_iocbq *cmdiocbq;
15010 struct lpfc_iocbq irspiocbq;
15011 unsigned long iflags;
15013 /* Check for response status */
15014 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
15015 /* If resource errors reported from HBA, reduce queue
15016 * depth of the SCSI device.
15018 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
15019 IOSTAT_LOCAL_REJECT)) &&
15020 ((wcqe->parameter & IOERR_PARAM_MASK) ==
15021 IOERR_NO_RESOURCES))
15022 phba->lpfc_rampdown_queue_depth(phba);
15024 /* Log the cmpl status */
15025 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
15026 "0373 FCP CQE cmpl: status=x%x: "
15027 "CQE: %08x %08x %08x %08x\n",
15028 bf_get(lpfc_wcqe_c_status, wcqe),
15029 wcqe->word0, wcqe->total_data_placed,
15030 wcqe->parameter, wcqe->word3);
15033 /* Look up the FCP command IOCB and create pseudo response IOCB */
15034 spin_lock_irqsave(&pring->ring_lock, iflags);
15035 pring->stats.iocb_event++;
15036 spin_unlock_irqrestore(&pring->ring_lock, iflags);
15037 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
15038 bf_get(lpfc_wcqe_c_request_tag, wcqe));
15039 if (unlikely(!cmdiocbq)) {
15040 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15041 "0374 FCP complete with no corresponding "
15042 "cmdiocb: iotag (%d)\n",
15043 bf_get(lpfc_wcqe_c_request_tag, wcqe));
15046 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
15047 cmdiocbq->isr_timestamp = cq->isr_timestamp;
15049 if (cmdiocbq->iocb_cmpl == NULL) {
15050 if (cmdiocbq->wqe_cmpl) {
15051 /* For FCP the flag is cleared in wqe_cmpl */
15052 if (!(cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
15053 cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
15054 spin_lock_irqsave(&phba->hbalock, iflags);
15055 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
15056 spin_unlock_irqrestore(&phba->hbalock, iflags);
15059 /* Pass the cmd_iocb and the wcqe to the upper layer */
15060 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
15063 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15064 "0375 FCP cmdiocb not callback function "
15066 bf_get(lpfc_wcqe_c_request_tag, wcqe));
15070 /* Only SLI4 non-IO commands stil use IOCB */
15071 /* Fake the irspiocb and copy necessary response information */
15072 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
15074 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
15075 spin_lock_irqsave(&phba->hbalock, iflags);
15076 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
15077 spin_unlock_irqrestore(&phba->hbalock, iflags);
15080 /* Pass the cmd_iocb and the rsp state to the upper layer */
15081 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
15085 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
15086 * @phba: Pointer to HBA context object.
15087 * @cq: Pointer to completion queue.
15088 * @wcqe: Pointer to work-queue completion queue entry.
15090 * This routine handles an fast-path WQ entry consumed event by invoking the
15091 * proper WQ release routine to the slow-path WQ.
15094 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
15095 struct lpfc_wcqe_release *wcqe)
15097 struct lpfc_queue *childwq;
15098 bool wqid_matched = false;
15101 /* Check for fast-path FCP work queue release */
15102 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
15103 list_for_each_entry(childwq, &cq->child_list, list) {
15104 if (childwq->queue_id == hba_wqid) {
15105 lpfc_sli4_wq_release(childwq,
15106 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
15107 if (childwq->q_flag & HBA_NVMET_WQFULL)
15108 lpfc_nvmet_wqfull_process(phba, childwq);
15109 wqid_matched = true;
15113 /* Report warning log message if no match found */
15114 if (wqid_matched != true)
15115 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15116 "2580 Fast-path wqe consume event carries "
15117 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
15121 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
15122 * @phba: Pointer to HBA context object.
15123 * @cq: Pointer to completion queue.
15124 * @rcqe: Pointer to receive-queue completion queue entry.
15126 * This routine process a receive-queue completion queue entry.
15128 * Return: true if work posted to worker thread, otherwise false.
15131 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
15132 struct lpfc_rcqe *rcqe)
15134 bool workposted = false;
15135 struct lpfc_queue *hrq;
15136 struct lpfc_queue *drq;
15137 struct rqb_dmabuf *dma_buf;
15138 struct fc_frame_header *fc_hdr;
15139 struct lpfc_nvmet_tgtport *tgtp;
15140 uint32_t status, rq_id;
15141 unsigned long iflags;
15142 uint32_t fctl, idx;
15144 if ((phba->nvmet_support == 0) ||
15145 (phba->sli4_hba.nvmet_cqset == NULL))
15148 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
15149 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
15150 drq = phba->sli4_hba.nvmet_mrq_data[idx];
15152 /* sanity check on queue memory */
15153 if (unlikely(!hrq) || unlikely(!drq))
15156 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
15157 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
15159 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
15161 if ((phba->nvmet_support == 0) ||
15162 (rq_id != hrq->queue_id))
15165 status = bf_get(lpfc_rcqe_status, rcqe);
15167 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
15168 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15169 "6126 Receive Frame Truncated!!\n");
15171 case FC_STATUS_RQ_SUCCESS:
15172 spin_lock_irqsave(&phba->hbalock, iflags);
15173 lpfc_sli4_rq_release(hrq, drq);
15174 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
15176 hrq->RQ_no_buf_found++;
15177 spin_unlock_irqrestore(&phba->hbalock, iflags);
15180 spin_unlock_irqrestore(&phba->hbalock, iflags);
15182 hrq->RQ_buf_posted--;
15183 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
15185 /* Just some basic sanity checks on FCP Command frame */
15186 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
15187 fc_hdr->fh_f_ctl[1] << 8 |
15188 fc_hdr->fh_f_ctl[2]);
15190 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
15191 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
15192 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
15195 if (fc_hdr->fh_type == FC_TYPE_FCP) {
15196 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
15197 lpfc_nvmet_unsol_fcp_event(
15198 phba, idx, dma_buf, cq->isr_timestamp,
15199 cq->q_flag & HBA_NVMET_CQ_NOTIFY);
15203 lpfc_rq_buf_free(phba, &dma_buf->hbuf);
15205 case FC_STATUS_INSUFF_BUF_FRM_DISC:
15206 if (phba->nvmet_support) {
15207 tgtp = phba->targetport->private;
15208 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15209 "6401 RQE Error x%x, posted %d err_cnt "
15211 status, hrq->RQ_buf_posted,
15212 hrq->RQ_no_posted_buf,
15213 atomic_read(&tgtp->rcv_fcp_cmd_in),
15214 atomic_read(&tgtp->rcv_fcp_cmd_out),
15215 atomic_read(&tgtp->xmt_fcp_release));
15219 case FC_STATUS_INSUFF_BUF_NEED_BUF:
15220 hrq->RQ_no_posted_buf++;
15221 /* Post more buffers if possible */
15229 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
15230 * @phba: adapter with cq
15231 * @cq: Pointer to the completion queue.
15232 * @cqe: Pointer to fast-path completion queue entry.
15234 * This routine process a fast-path work queue completion entry from fast-path
15235 * event queue for FCP command response completion.
15237 * Return: true if work posted to worker thread, otherwise false.
15240 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
15241 struct lpfc_cqe *cqe)
15243 struct lpfc_wcqe_release wcqe;
15244 bool workposted = false;
15246 /* Copy the work queue CQE and convert endian order if needed */
15247 lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
15249 /* Check and process for different type of WCQE and dispatch */
15250 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
15251 case CQE_CODE_COMPL_WQE:
15252 case CQE_CODE_NVME_ERSP:
15254 /* Process the WQ complete event */
15255 phba->last_completion_time = jiffies;
15256 if (cq->subtype == LPFC_IO || cq->subtype == LPFC_NVME_LS)
15257 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
15258 (struct lpfc_wcqe_complete *)&wcqe);
15260 case CQE_CODE_RELEASE_WQE:
15261 cq->CQ_release_wqe++;
15262 /* Process the WQ release event */
15263 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
15264 (struct lpfc_wcqe_release *)&wcqe);
15266 case CQE_CODE_XRI_ABORTED:
15267 cq->CQ_xri_aborted++;
15268 /* Process the WQ XRI abort event */
15269 phba->last_completion_time = jiffies;
15270 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
15271 (struct sli4_wcqe_xri_aborted *)&wcqe);
15273 case CQE_CODE_RECEIVE_V1:
15274 case CQE_CODE_RECEIVE:
15275 phba->last_completion_time = jiffies;
15276 if (cq->subtype == LPFC_NVMET) {
15277 workposted = lpfc_sli4_nvmet_handle_rcqe(
15278 phba, cq, (struct lpfc_rcqe *)&wcqe);
15282 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15283 "0144 Not a valid CQE code: x%x\n",
15284 bf_get(lpfc_wcqe_c_code, &wcqe));
15291 * lpfc_sli4_sched_cq_work - Schedules cq work
15292 * @phba: Pointer to HBA context object.
15293 * @cq: Pointer to CQ
15296 * This routine checks the poll mode of the CQ corresponding to
15297 * cq->chann, then either schedules a softirq or queue_work to complete
15300 * queue_work path is taken if in NVMET mode, or if poll_mode is in
15301 * LPFC_QUEUE_WORK mode. Otherwise, softirq path is taken.
15304 static void lpfc_sli4_sched_cq_work(struct lpfc_hba *phba,
15305 struct lpfc_queue *cq, uint16_t cqid)
15309 switch (cq->poll_mode) {
15310 case LPFC_IRQ_POLL:
15311 /* CGN mgmt is mutually exclusive from softirq processing */
15312 if (phba->cmf_active_mode == LPFC_CFG_OFF) {
15313 irq_poll_sched(&cq->iop);
15317 case LPFC_QUEUE_WORK:
15319 if (is_kdump_kernel())
15320 ret = queue_work(phba->wq, &cq->irqwork);
15322 ret = queue_work_on(cq->chann, phba->wq, &cq->irqwork);
15324 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15325 "0383 Cannot schedule queue work "
15326 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
15327 cqid, cq->queue_id,
15328 raw_smp_processor_id());
15333 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
15334 * @phba: Pointer to HBA context object.
15335 * @eq: Pointer to the queue structure.
15336 * @eqe: Pointer to fast-path event queue entry.
15338 * This routine process a event queue entry from the fast-path event queue.
15339 * It will check the MajorCode and MinorCode to determine this is for a
15340 * completion event on a completion queue, if not, an error shall be logged
15341 * and just return. Otherwise, it will get to the corresponding completion
15342 * queue and process all the entries on the completion queue, rearm the
15343 * completion queue, and then return.
15346 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
15347 struct lpfc_eqe *eqe)
15349 struct lpfc_queue *cq = NULL;
15350 uint32_t qidx = eq->hdwq;
15353 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
15354 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15355 "0366 Not a valid completion "
15356 "event: majorcode=x%x, minorcode=x%x\n",
15357 bf_get_le32(lpfc_eqe_major_code, eqe),
15358 bf_get_le32(lpfc_eqe_minor_code, eqe));
15362 /* Get the reference to the corresponding CQ */
15363 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
15365 /* Use the fast lookup method first */
15366 if (cqid <= phba->sli4_hba.cq_max) {
15367 cq = phba->sli4_hba.cq_lookup[cqid];
15372 /* Next check for NVMET completion */
15373 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
15374 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
15375 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
15376 /* Process NVMET unsol rcv */
15377 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
15382 if (phba->sli4_hba.nvmels_cq &&
15383 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
15384 /* Process NVME unsol rcv */
15385 cq = phba->sli4_hba.nvmels_cq;
15388 /* Otherwise this is a Slow path event */
15390 lpfc_sli4_sp_handle_eqe(phba, eqe,
15391 phba->sli4_hba.hdwq[qidx].hba_eq);
15396 if (unlikely(cqid != cq->queue_id)) {
15397 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15398 "0368 Miss-matched fast-path completion "
15399 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
15400 cqid, cq->queue_id);
15405 #if defined(CONFIG_SCSI_LPFC_DEBUG_FS)
15406 if (phba->ktime_on)
15407 cq->isr_timestamp = ktime_get_ns();
15409 cq->isr_timestamp = 0;
15411 lpfc_sli4_sched_cq_work(phba, cq, cqid);
15415 * __lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
15416 * @cq: Pointer to CQ to be processed
15417 * @poll_mode: Enum lpfc_poll_state to determine poll mode
15419 * This routine calls the cq processing routine with the handler for
15422 * The CQ routine returns two values: the first is the calling status,
15423 * which indicates whether work was queued to the background discovery
15424 * thread. If true, the routine should wakeup the discovery thread;
15425 * the second is the delay parameter. If non-zero, rather than rearming
15426 * the CQ and yet another interrupt, the CQ handler should be queued so
15427 * that it is processed in a subsequent polling action. The value of
15428 * the delay indicates when to reschedule it.
15431 __lpfc_sli4_hba_process_cq(struct lpfc_queue *cq,
15432 enum lpfc_poll_mode poll_mode)
15434 struct lpfc_hba *phba = cq->phba;
15435 unsigned long delay;
15436 bool workposted = false;
15439 /* process and rearm the CQ */
15440 workposted |= __lpfc_sli4_process_cq(phba, cq, lpfc_sli4_fp_handle_cqe,
15441 &delay, poll_mode);
15444 if (is_kdump_kernel())
15445 ret = queue_delayed_work(phba->wq, &cq->sched_irqwork,
15448 ret = queue_delayed_work_on(cq->chann, phba->wq,
15449 &cq->sched_irqwork, delay);
15451 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15452 "0367 Cannot schedule queue work "
15453 "for cqid=%d on CPU %d\n",
15454 cq->queue_id, cq->chann);
15457 /* wake up worker thread if there are works to be done */
15459 lpfc_worker_wake_up(phba);
15463 * lpfc_sli4_hba_process_cq - fast-path work handler when started by
15465 * @work: pointer to work element
15467 * translates from the work handler and calls the fast-path handler.
15470 lpfc_sli4_hba_process_cq(struct work_struct *work)
15472 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, irqwork);
15474 __lpfc_sli4_hba_process_cq(cq, LPFC_QUEUE_WORK);
15478 * lpfc_sli4_dly_hba_process_cq - fast-path work handler when started by timer
15479 * @work: pointer to work element
15481 * translates from the work handler and calls the fast-path handler.
15484 lpfc_sli4_dly_hba_process_cq(struct work_struct *work)
15486 struct lpfc_queue *cq = container_of(to_delayed_work(work),
15487 struct lpfc_queue, sched_irqwork);
15489 __lpfc_sli4_hba_process_cq(cq, LPFC_QUEUE_WORK);
15493 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
15494 * @irq: Interrupt number.
15495 * @dev_id: The device context pointer.
15497 * This function is directly called from the PCI layer as an interrupt
15498 * service routine when device with SLI-4 interface spec is enabled with
15499 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
15500 * ring event in the HBA. However, when the device is enabled with either
15501 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
15502 * device-level interrupt handler. When the PCI slot is in error recovery
15503 * or the HBA is undergoing initialization, the interrupt handler will not
15504 * process the interrupt. The SCSI FCP fast-path ring event are handled in
15505 * the intrrupt context. This function is called without any lock held.
15506 * It gets the hbalock to access and update SLI data structures. Note that,
15507 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
15508 * equal to that of FCP CQ index.
15510 * The link attention and ELS ring attention events are handled
15511 * by the worker thread. The interrupt handler signals the worker thread
15512 * and returns for these events. This function is called without any lock
15513 * held. It gets the hbalock to access and update SLI data structures.
15515 * This function returns IRQ_HANDLED when interrupt is handled else it
15516 * returns IRQ_NONE.
15519 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
15521 struct lpfc_hba *phba;
15522 struct lpfc_hba_eq_hdl *hba_eq_hdl;
15523 struct lpfc_queue *fpeq;
15524 unsigned long iflag;
15527 struct lpfc_eq_intr_info *eqi;
15529 /* Get the driver's phba structure from the dev_id */
15530 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
15531 phba = hba_eq_hdl->phba;
15532 hba_eqidx = hba_eq_hdl->idx;
15534 if (unlikely(!phba))
15536 if (unlikely(!phba->sli4_hba.hdwq))
15539 /* Get to the EQ struct associated with this vector */
15540 fpeq = phba->sli4_hba.hba_eq_hdl[hba_eqidx].eq;
15541 if (unlikely(!fpeq))
15544 /* Check device state for handling interrupt */
15545 if (unlikely(lpfc_intr_state_check(phba))) {
15546 /* Check again for link_state with lock held */
15547 spin_lock_irqsave(&phba->hbalock, iflag);
15548 if (phba->link_state < LPFC_LINK_DOWN)
15549 /* Flush, clear interrupt, and rearm the EQ */
15550 lpfc_sli4_eqcq_flush(phba, fpeq);
15551 spin_unlock_irqrestore(&phba->hbalock, iflag);
15555 eqi = this_cpu_ptr(phba->sli4_hba.eq_info);
15558 fpeq->last_cpu = raw_smp_processor_id();
15560 if (eqi->icnt > LPFC_EQD_ISR_TRIGGER &&
15561 fpeq->q_flag & HBA_EQ_DELAY_CHK &&
15562 phba->cfg_auto_imax &&
15563 fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
15564 phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
15565 lpfc_sli4_mod_hba_eq_delay(phba, fpeq, LPFC_MAX_AUTO_EQ_DELAY);
15567 /* process and rearm the EQ */
15568 ecount = lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM);
15570 if (unlikely(ecount == 0)) {
15571 fpeq->EQ_no_entry++;
15572 if (phba->intr_type == MSIX)
15573 /* MSI-X treated interrupt served as no EQ share INT */
15574 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15575 "0358 MSI-X interrupt with no EQE\n");
15577 /* Non MSI-X treated on interrupt as EQ share INT */
15581 return IRQ_HANDLED;
15582 } /* lpfc_sli4_hba_intr_handler */
15585 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
15586 * @irq: Interrupt number.
15587 * @dev_id: The device context pointer.
15589 * This function is the device-level interrupt handler to device with SLI-4
15590 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
15591 * interrupt mode is enabled and there is an event in the HBA which requires
15592 * driver attention. This function invokes the slow-path interrupt attention
15593 * handling function and fast-path interrupt attention handling function in
15594 * turn to process the relevant HBA attention events. This function is called
15595 * without any lock held. It gets the hbalock to access and update SLI data
15598 * This function returns IRQ_HANDLED when interrupt is handled, else it
15599 * returns IRQ_NONE.
15602 lpfc_sli4_intr_handler(int irq, void *dev_id)
15604 struct lpfc_hba *phba;
15605 irqreturn_t hba_irq_rc;
15606 bool hba_handled = false;
15609 /* Get the driver's phba structure from the dev_id */
15610 phba = (struct lpfc_hba *)dev_id;
15612 if (unlikely(!phba))
15616 * Invoke fast-path host attention interrupt handling as appropriate.
15618 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
15619 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
15620 &phba->sli4_hba.hba_eq_hdl[qidx]);
15621 if (hba_irq_rc == IRQ_HANDLED)
15622 hba_handled |= true;
15625 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
15626 } /* lpfc_sli4_intr_handler */
15628 void lpfc_sli4_poll_hbtimer(struct timer_list *t)
15630 struct lpfc_hba *phba = from_timer(phba, t, cpuhp_poll_timer);
15631 struct lpfc_queue *eq;
15636 list_for_each_entry_rcu(eq, &phba->poll_list, _poll_list)
15637 i += lpfc_sli4_poll_eq(eq, LPFC_POLL_SLOWPATH);
15638 if (!list_empty(&phba->poll_list))
15639 mod_timer(&phba->cpuhp_poll_timer,
15640 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
15645 inline int lpfc_sli4_poll_eq(struct lpfc_queue *eq, uint8_t path)
15647 struct lpfc_hba *phba = eq->phba;
15651 * Unlocking an irq is one of the entry point to check
15652 * for re-schedule, but we are good for io submission
15653 * path as midlayer does a get_cpu to glue us in. Flush
15654 * out the invalidate queue so we can see the updated
15659 if (READ_ONCE(eq->mode) == LPFC_EQ_POLL)
15660 /* We will not likely get the completion for the caller
15661 * during this iteration but i guess that's fine.
15662 * Future io's coming on this eq should be able to
15663 * pick it up. As for the case of single io's, they
15664 * will be handled through a sched from polling timer
15665 * function which is currently triggered every 1msec.
15667 i = lpfc_sli4_process_eq(phba, eq, LPFC_QUEUE_NOARM);
15672 static inline void lpfc_sli4_add_to_poll_list(struct lpfc_queue *eq)
15674 struct lpfc_hba *phba = eq->phba;
15676 /* kickstart slowpath processing if needed */
15677 if (list_empty(&phba->poll_list))
15678 mod_timer(&phba->cpuhp_poll_timer,
15679 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
15681 list_add_rcu(&eq->_poll_list, &phba->poll_list);
15685 static inline void lpfc_sli4_remove_from_poll_list(struct lpfc_queue *eq)
15687 struct lpfc_hba *phba = eq->phba;
15689 /* Disable slowpath processing for this eq. Kick start the eq
15690 * by RE-ARMING the eq's ASAP
15692 list_del_rcu(&eq->_poll_list);
15695 if (list_empty(&phba->poll_list))
15696 del_timer_sync(&phba->cpuhp_poll_timer);
15699 void lpfc_sli4_cleanup_poll_list(struct lpfc_hba *phba)
15701 struct lpfc_queue *eq, *next;
15703 list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list)
15704 list_del(&eq->_poll_list);
15706 INIT_LIST_HEAD(&phba->poll_list);
15711 __lpfc_sli4_switch_eqmode(struct lpfc_queue *eq, uint8_t mode)
15713 if (mode == eq->mode)
15716 * currently this function is only called during a hotplug
15717 * event and the cpu on which this function is executing
15718 * is going offline. By now the hotplug has instructed
15719 * the scheduler to remove this cpu from cpu active mask.
15720 * So we don't need to work about being put aside by the
15721 * scheduler for a high priority process. Yes, the inte-
15722 * rrupts could come but they are known to retire ASAP.
15725 /* Disable polling in the fastpath */
15726 WRITE_ONCE(eq->mode, mode);
15727 /* flush out the store buffer */
15731 * Add this eq to the polling list and start polling. For
15732 * a grace period both interrupt handler and poller will
15733 * try to process the eq _but_ that's fine. We have a
15734 * synchronization mechanism in place (queue_claimed) to
15735 * deal with it. This is just a draining phase for int-
15736 * errupt handler (not eq's) as we have guranteed through
15737 * barrier that all the CPUs have seen the new CQ_POLLED
15738 * state. which will effectively disable the REARMING of
15739 * the EQ. The whole idea is eq's die off eventually as
15740 * we are not rearming EQ's anymore.
15742 mode ? lpfc_sli4_add_to_poll_list(eq) :
15743 lpfc_sli4_remove_from_poll_list(eq);
15746 void lpfc_sli4_start_polling(struct lpfc_queue *eq)
15748 __lpfc_sli4_switch_eqmode(eq, LPFC_EQ_POLL);
15751 void lpfc_sli4_stop_polling(struct lpfc_queue *eq)
15753 struct lpfc_hba *phba = eq->phba;
15755 __lpfc_sli4_switch_eqmode(eq, LPFC_EQ_INTERRUPT);
15757 /* Kick start for the pending io's in h/w.
15758 * Once we switch back to interrupt processing on a eq
15759 * the io path completion will only arm eq's when it
15760 * receives a completion. But since eq's are in disa-
15761 * rmed state it doesn't receive a completion. This
15762 * creates a deadlock scenaro.
15764 phba->sli4_hba.sli4_write_eq_db(phba, eq, 0, LPFC_QUEUE_REARM);
15768 * lpfc_sli4_queue_free - free a queue structure and associated memory
15769 * @queue: The queue structure to free.
15771 * This function frees a queue structure and the DMAable memory used for
15772 * the host resident queue. This function must be called after destroying the
15773 * queue on the HBA.
15776 lpfc_sli4_queue_free(struct lpfc_queue *queue)
15778 struct lpfc_dmabuf *dmabuf;
15783 if (!list_empty(&queue->wq_list))
15784 list_del(&queue->wq_list);
15786 while (!list_empty(&queue->page_list)) {
15787 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
15789 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
15790 dmabuf->virt, dmabuf->phys);
15794 lpfc_free_rq_buffer(queue->phba, queue);
15795 kfree(queue->rqbp);
15798 if (!list_empty(&queue->cpu_list))
15799 list_del(&queue->cpu_list);
15806 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
15807 * @phba: The HBA that this queue is being created on.
15808 * @page_size: The size of a queue page
15809 * @entry_size: The size of each queue entry for this queue.
15810 * @entry_count: The number of entries that this queue will handle.
15811 * @cpu: The cpu that will primarily utilize this queue.
15813 * This function allocates a queue structure and the DMAable memory used for
15814 * the host resident queue. This function must be called before creating the
15815 * queue on the HBA.
15817 struct lpfc_queue *
15818 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
15819 uint32_t entry_size, uint32_t entry_count, int cpu)
15821 struct lpfc_queue *queue;
15822 struct lpfc_dmabuf *dmabuf;
15823 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15826 if (!phba->sli4_hba.pc_sli4_params.supported)
15827 hw_page_size = page_size;
15829 pgcnt = ALIGN(entry_size * entry_count, hw_page_size) / hw_page_size;
15831 /* If needed, Adjust page count to match the max the adapter supports */
15832 if (pgcnt > phba->sli4_hba.pc_sli4_params.wqpcnt)
15833 pgcnt = phba->sli4_hba.pc_sli4_params.wqpcnt;
15835 queue = kzalloc_node(sizeof(*queue) + (sizeof(void *) * pgcnt),
15836 GFP_KERNEL, cpu_to_node(cpu));
15840 INIT_LIST_HEAD(&queue->list);
15841 INIT_LIST_HEAD(&queue->_poll_list);
15842 INIT_LIST_HEAD(&queue->wq_list);
15843 INIT_LIST_HEAD(&queue->wqfull_list);
15844 INIT_LIST_HEAD(&queue->page_list);
15845 INIT_LIST_HEAD(&queue->child_list);
15846 INIT_LIST_HEAD(&queue->cpu_list);
15848 /* Set queue parameters now. If the system cannot provide memory
15849 * resources, the free routine needs to know what was allocated.
15851 queue->page_count = pgcnt;
15852 queue->q_pgs = (void **)&queue[1];
15853 queue->entry_cnt_per_pg = hw_page_size / entry_size;
15854 queue->entry_size = entry_size;
15855 queue->entry_count = entry_count;
15856 queue->page_size = hw_page_size;
15857 queue->phba = phba;
15859 for (x = 0; x < queue->page_count; x++) {
15860 dmabuf = kzalloc_node(sizeof(*dmabuf), GFP_KERNEL,
15861 dev_to_node(&phba->pcidev->dev));
15864 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
15865 hw_page_size, &dmabuf->phys,
15867 if (!dmabuf->virt) {
15871 dmabuf->buffer_tag = x;
15872 list_add_tail(&dmabuf->list, &queue->page_list);
15873 /* use lpfc_sli4_qe to index a paritcular entry in this page */
15874 queue->q_pgs[x] = dmabuf->virt;
15876 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
15877 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
15878 INIT_DELAYED_WORK(&queue->sched_irqwork, lpfc_sli4_dly_hba_process_cq);
15879 INIT_DELAYED_WORK(&queue->sched_spwork, lpfc_sli4_dly_sp_process_cq);
15881 /* notify_interval will be set during q creation */
15885 lpfc_sli4_queue_free(queue);
15890 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
15891 * @phba: HBA structure that indicates port to create a queue on.
15892 * @pci_barset: PCI BAR set flag.
15894 * This function shall perform iomap of the specified PCI BAR address to host
15895 * memory address if not already done so and return it. The returned host
15896 * memory address can be NULL.
15898 static void __iomem *
15899 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
15904 switch (pci_barset) {
15905 case WQ_PCI_BAR_0_AND_1:
15906 return phba->pci_bar0_memmap_p;
15907 case WQ_PCI_BAR_2_AND_3:
15908 return phba->pci_bar2_memmap_p;
15909 case WQ_PCI_BAR_4_AND_5:
15910 return phba->pci_bar4_memmap_p;
15918 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on EQs
15919 * @phba: HBA structure that EQs are on.
15920 * @startq: The starting EQ index to modify
15921 * @numq: The number of EQs (consecutive indexes) to modify
15922 * @usdelay: amount of delay
15924 * This function revises the EQ delay on 1 or more EQs. The EQ delay
15925 * is set either by writing to a register (if supported by the SLI Port)
15926 * or by mailbox command. The mailbox command allows several EQs to be
15929 * The @phba struct is used to send a mailbox command to HBA. The @startq
15930 * is used to get the starting EQ index to change. The @numq value is
15931 * used to specify how many consecutive EQ indexes, starting at EQ index,
15932 * are to be changed. This function is asynchronous and will wait for any
15933 * mailbox commands to finish before returning.
15935 * On success this function will return a zero. If unable to allocate
15936 * enough memory this function will return -ENOMEM. If a mailbox command
15937 * fails this function will return -ENXIO. Note: on ENXIO, some EQs may
15938 * have had their delay multipler changed.
15941 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
15942 uint32_t numq, uint32_t usdelay)
15944 struct lpfc_mbx_modify_eq_delay *eq_delay;
15945 LPFC_MBOXQ_t *mbox;
15946 struct lpfc_queue *eq;
15947 int cnt = 0, rc, length;
15948 uint32_t shdr_status, shdr_add_status;
15951 union lpfc_sli4_cfg_shdr *shdr;
15953 if (startq >= phba->cfg_irq_chann)
15956 if (usdelay > 0xFFFF) {
15957 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP | LOG_NVME,
15958 "6429 usdelay %d too large. Scaled down to "
15959 "0xFFFF.\n", usdelay);
15963 /* set values by EQ_DELAY register if supported */
15964 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
15965 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
15966 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
15970 lpfc_sli4_mod_hba_eq_delay(phba, eq, usdelay);
15978 /* Otherwise, set values by mailbox cmd */
15980 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15982 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15983 "6428 Failed allocating mailbox cmd buffer."
15984 " EQ delay was not set.\n");
15987 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
15988 sizeof(struct lpfc_sli4_cfg_mhdr));
15989 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15990 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
15991 length, LPFC_SLI4_MBX_EMBED);
15992 eq_delay = &mbox->u.mqe.un.eq_delay;
15994 /* Calculate delay multiper from maximum interrupt per second */
15995 dmult = (usdelay * LPFC_DMULT_CONST) / LPFC_SEC_TO_USEC;
15998 if (dmult > LPFC_DMULT_MAX)
15999 dmult = LPFC_DMULT_MAX;
16001 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
16002 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
16005 eq->q_mode = usdelay;
16006 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
16007 eq_delay->u.request.eq[cnt].phase = 0;
16008 eq_delay->u.request.eq[cnt].delay_multi = dmult;
16013 eq_delay->u.request.num_eq = cnt;
16015 mbox->vport = phba->pport;
16016 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16017 mbox->ctx_buf = NULL;
16018 mbox->ctx_ndlp = NULL;
16019 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16020 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
16021 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16022 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16023 if (shdr_status || shdr_add_status || rc) {
16024 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16025 "2512 MODIFY_EQ_DELAY mailbox failed with "
16026 "status x%x add_status x%x, mbx status x%x\n",
16027 shdr_status, shdr_add_status, rc);
16029 mempool_free(mbox, phba->mbox_mem_pool);
16034 * lpfc_eq_create - Create an Event Queue on the HBA
16035 * @phba: HBA structure that indicates port to create a queue on.
16036 * @eq: The queue structure to use to create the event queue.
16037 * @imax: The maximum interrupt per second limit.
16039 * This function creates an event queue, as detailed in @eq, on a port,
16040 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
16042 * The @phba struct is used to send mailbox command to HBA. The @eq struct
16043 * is used to get the entry count and entry size that are necessary to
16044 * determine the number of pages to allocate and use for this queue. This
16045 * function will send the EQ_CREATE mailbox command to the HBA to setup the
16046 * event queue. This function is asynchronous and will wait for the mailbox
16047 * command to finish before continuing.
16049 * On success this function will return a zero. If unable to allocate enough
16050 * memory this function will return -ENOMEM. If the queue create mailbox command
16051 * fails this function will return -ENXIO.
16054 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
16056 struct lpfc_mbx_eq_create *eq_create;
16057 LPFC_MBOXQ_t *mbox;
16058 int rc, length, status = 0;
16059 struct lpfc_dmabuf *dmabuf;
16060 uint32_t shdr_status, shdr_add_status;
16061 union lpfc_sli4_cfg_shdr *shdr;
16063 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16065 /* sanity check on queue memory */
16068 if (!phba->sli4_hba.pc_sli4_params.supported)
16069 hw_page_size = SLI4_PAGE_SIZE;
16071 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16074 length = (sizeof(struct lpfc_mbx_eq_create) -
16075 sizeof(struct lpfc_sli4_cfg_mhdr));
16076 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16077 LPFC_MBOX_OPCODE_EQ_CREATE,
16078 length, LPFC_SLI4_MBX_EMBED);
16079 eq_create = &mbox->u.mqe.un.eq_create;
16080 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
16081 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
16083 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
16085 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
16087 /* Use version 2 of CREATE_EQ if eqav is set */
16088 if (phba->sli4_hba.pc_sli4_params.eqav) {
16089 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16090 LPFC_Q_CREATE_VERSION_2);
16091 bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
16092 phba->sli4_hba.pc_sli4_params.eqav);
16095 /* don't setup delay multiplier using EQ_CREATE */
16097 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
16099 switch (eq->entry_count) {
16101 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16102 "0360 Unsupported EQ count. (%d)\n",
16104 if (eq->entry_count < 256) {
16108 fallthrough; /* otherwise default to smallest count */
16110 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16114 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16118 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16122 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16126 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16130 list_for_each_entry(dmabuf, &eq->page_list, list) {
16131 memset(dmabuf->virt, 0, hw_page_size);
16132 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
16133 putPaddrLow(dmabuf->phys);
16134 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
16135 putPaddrHigh(dmabuf->phys);
16137 mbox->vport = phba->pport;
16138 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16139 mbox->ctx_buf = NULL;
16140 mbox->ctx_ndlp = NULL;
16141 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16142 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16143 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16144 if (shdr_status || shdr_add_status || rc) {
16145 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16146 "2500 EQ_CREATE mailbox failed with "
16147 "status x%x add_status x%x, mbx status x%x\n",
16148 shdr_status, shdr_add_status, rc);
16151 eq->type = LPFC_EQ;
16152 eq->subtype = LPFC_NONE;
16153 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
16154 if (eq->queue_id == 0xFFFF)
16156 eq->host_index = 0;
16157 eq->notify_interval = LPFC_EQ_NOTIFY_INTRVL;
16158 eq->max_proc_limit = LPFC_EQ_MAX_PROC_LIMIT;
16160 mempool_free(mbox, phba->mbox_mem_pool);
16164 static int lpfc_cq_poll_hdler(struct irq_poll *iop, int budget)
16166 struct lpfc_queue *cq = container_of(iop, struct lpfc_queue, iop);
16168 __lpfc_sli4_hba_process_cq(cq, LPFC_IRQ_POLL);
16174 * lpfc_cq_create - Create a Completion Queue on the HBA
16175 * @phba: HBA structure that indicates port to create a queue on.
16176 * @cq: The queue structure to use to create the completion queue.
16177 * @eq: The event queue to bind this completion queue to.
16178 * @type: Type of queue (EQ, GCQ, MCQ, WCQ, etc).
16179 * @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
16181 * This function creates a completion queue, as detailed in @wq, on a port,
16182 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
16184 * The @phba struct is used to send mailbox command to HBA. The @cq struct
16185 * is used to get the entry count and entry size that are necessary to
16186 * determine the number of pages to allocate and use for this queue. The @eq
16187 * is used to indicate which event queue to bind this completion queue to. This
16188 * function will send the CQ_CREATE mailbox command to the HBA to setup the
16189 * completion queue. This function is asynchronous and will wait for the mailbox
16190 * command to finish before continuing.
16192 * On success this function will return a zero. If unable to allocate enough
16193 * memory this function will return -ENOMEM. If the queue create mailbox command
16194 * fails this function will return -ENXIO.
16197 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
16198 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
16200 struct lpfc_mbx_cq_create *cq_create;
16201 struct lpfc_dmabuf *dmabuf;
16202 LPFC_MBOXQ_t *mbox;
16203 int rc, length, status = 0;
16204 uint32_t shdr_status, shdr_add_status;
16205 union lpfc_sli4_cfg_shdr *shdr;
16207 /* sanity check on queue memory */
16211 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16214 length = (sizeof(struct lpfc_mbx_cq_create) -
16215 sizeof(struct lpfc_sli4_cfg_mhdr));
16216 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16217 LPFC_MBOX_OPCODE_CQ_CREATE,
16218 length, LPFC_SLI4_MBX_EMBED);
16219 cq_create = &mbox->u.mqe.un.cq_create;
16220 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
16221 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
16223 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
16224 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
16225 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16226 phba->sli4_hba.pc_sli4_params.cqv);
16227 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
16228 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
16229 (cq->page_size / SLI4_PAGE_SIZE));
16230 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
16232 bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
16233 phba->sli4_hba.pc_sli4_params.cqav);
16235 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
16238 switch (cq->entry_count) {
16241 if (phba->sli4_hba.pc_sli4_params.cqv ==
16242 LPFC_Q_CREATE_VERSION_2) {
16243 cq_create->u.request.context.lpfc_cq_context_count =
16245 bf_set(lpfc_cq_context_count,
16246 &cq_create->u.request.context,
16247 LPFC_CQ_CNT_WORD7);
16252 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16253 "0361 Unsupported CQ count: "
16254 "entry cnt %d sz %d pg cnt %d\n",
16255 cq->entry_count, cq->entry_size,
16257 if (cq->entry_count < 256) {
16261 fallthrough; /* otherwise default to smallest count */
16263 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
16267 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
16271 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
16275 list_for_each_entry(dmabuf, &cq->page_list, list) {
16276 memset(dmabuf->virt, 0, cq->page_size);
16277 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
16278 putPaddrLow(dmabuf->phys);
16279 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
16280 putPaddrHigh(dmabuf->phys);
16282 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16284 /* The IOCTL status is embedded in the mailbox subheader. */
16285 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16286 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16287 if (shdr_status || shdr_add_status || rc) {
16288 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16289 "2501 CQ_CREATE mailbox failed with "
16290 "status x%x add_status x%x, mbx status x%x\n",
16291 shdr_status, shdr_add_status, rc);
16295 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
16296 if (cq->queue_id == 0xFFFF) {
16300 /* link the cq onto the parent eq child list */
16301 list_add_tail(&cq->list, &eq->child_list);
16302 /* Set up completion queue's type and subtype */
16304 cq->subtype = subtype;
16305 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
16306 cq->assoc_qid = eq->queue_id;
16308 cq->host_index = 0;
16309 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
16310 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, cq->entry_count);
16312 if (cq->queue_id > phba->sli4_hba.cq_max)
16313 phba->sli4_hba.cq_max = cq->queue_id;
16315 irq_poll_init(&cq->iop, LPFC_IRQ_POLL_WEIGHT, lpfc_cq_poll_hdler);
16317 mempool_free(mbox, phba->mbox_mem_pool);
16322 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
16323 * @phba: HBA structure that indicates port to create a queue on.
16324 * @cqp: The queue structure array to use to create the completion queues.
16325 * @hdwq: The hardware queue array with the EQ to bind completion queues to.
16326 * @type: Type of queue (EQ, GCQ, MCQ, WCQ, etc).
16327 * @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
16329 * This function creates a set of completion queue, s to support MRQ
16330 * as detailed in @cqp, on a port,
16331 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
16333 * The @phba struct is used to send mailbox command to HBA. The @cq struct
16334 * is used to get the entry count and entry size that are necessary to
16335 * determine the number of pages to allocate and use for this queue. The @eq
16336 * is used to indicate which event queue to bind this completion queue to. This
16337 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
16338 * completion queue. This function is asynchronous and will wait for the mailbox
16339 * command to finish before continuing.
16341 * On success this function will return a zero. If unable to allocate enough
16342 * memory this function will return -ENOMEM. If the queue create mailbox command
16343 * fails this function will return -ENXIO.
16346 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
16347 struct lpfc_sli4_hdw_queue *hdwq, uint32_t type,
16350 struct lpfc_queue *cq;
16351 struct lpfc_queue *eq;
16352 struct lpfc_mbx_cq_create_set *cq_set;
16353 struct lpfc_dmabuf *dmabuf;
16354 LPFC_MBOXQ_t *mbox;
16355 int rc, length, alloclen, status = 0;
16356 int cnt, idx, numcq, page_idx = 0;
16357 uint32_t shdr_status, shdr_add_status;
16358 union lpfc_sli4_cfg_shdr *shdr;
16359 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16361 /* sanity check on queue memory */
16362 numcq = phba->cfg_nvmet_mrq;
16363 if (!cqp || !hdwq || !numcq)
16366 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16370 length = sizeof(struct lpfc_mbx_cq_create_set);
16371 length += ((numcq * cqp[0]->page_count) *
16372 sizeof(struct dma_address));
16373 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16374 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
16375 LPFC_SLI4_MBX_NEMBED);
16376 if (alloclen < length) {
16377 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16378 "3098 Allocated DMA memory size (%d) is "
16379 "less than the requested DMA memory size "
16380 "(%d)\n", alloclen, length);
16384 cq_set = mbox->sge_array->addr[0];
16385 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
16386 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
16388 for (idx = 0; idx < numcq; idx++) {
16390 eq = hdwq[idx].hba_eq;
16395 if (!phba->sli4_hba.pc_sli4_params.supported)
16396 hw_page_size = cq->page_size;
16400 bf_set(lpfc_mbx_cq_create_set_page_size,
16401 &cq_set->u.request,
16402 (hw_page_size / SLI4_PAGE_SIZE));
16403 bf_set(lpfc_mbx_cq_create_set_num_pages,
16404 &cq_set->u.request, cq->page_count);
16405 bf_set(lpfc_mbx_cq_create_set_evt,
16406 &cq_set->u.request, 1);
16407 bf_set(lpfc_mbx_cq_create_set_valid,
16408 &cq_set->u.request, 1);
16409 bf_set(lpfc_mbx_cq_create_set_cqe_size,
16410 &cq_set->u.request, 0);
16411 bf_set(lpfc_mbx_cq_create_set_num_cq,
16412 &cq_set->u.request, numcq);
16413 bf_set(lpfc_mbx_cq_create_set_autovalid,
16414 &cq_set->u.request,
16415 phba->sli4_hba.pc_sli4_params.cqav);
16416 switch (cq->entry_count) {
16419 if (phba->sli4_hba.pc_sli4_params.cqv ==
16420 LPFC_Q_CREATE_VERSION_2) {
16421 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16422 &cq_set->u.request,
16424 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16425 &cq_set->u.request,
16426 LPFC_CQ_CNT_WORD7);
16431 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16432 "3118 Bad CQ count. (%d)\n",
16434 if (cq->entry_count < 256) {
16438 fallthrough; /* otherwise default to smallest */
16440 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16441 &cq_set->u.request, LPFC_CQ_CNT_256);
16444 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16445 &cq_set->u.request, LPFC_CQ_CNT_512);
16448 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16449 &cq_set->u.request, LPFC_CQ_CNT_1024);
16452 bf_set(lpfc_mbx_cq_create_set_eq_id0,
16453 &cq_set->u.request, eq->queue_id);
16456 bf_set(lpfc_mbx_cq_create_set_eq_id1,
16457 &cq_set->u.request, eq->queue_id);
16460 bf_set(lpfc_mbx_cq_create_set_eq_id2,
16461 &cq_set->u.request, eq->queue_id);
16464 bf_set(lpfc_mbx_cq_create_set_eq_id3,
16465 &cq_set->u.request, eq->queue_id);
16468 bf_set(lpfc_mbx_cq_create_set_eq_id4,
16469 &cq_set->u.request, eq->queue_id);
16472 bf_set(lpfc_mbx_cq_create_set_eq_id5,
16473 &cq_set->u.request, eq->queue_id);
16476 bf_set(lpfc_mbx_cq_create_set_eq_id6,
16477 &cq_set->u.request, eq->queue_id);
16480 bf_set(lpfc_mbx_cq_create_set_eq_id7,
16481 &cq_set->u.request, eq->queue_id);
16484 bf_set(lpfc_mbx_cq_create_set_eq_id8,
16485 &cq_set->u.request, eq->queue_id);
16488 bf_set(lpfc_mbx_cq_create_set_eq_id9,
16489 &cq_set->u.request, eq->queue_id);
16492 bf_set(lpfc_mbx_cq_create_set_eq_id10,
16493 &cq_set->u.request, eq->queue_id);
16496 bf_set(lpfc_mbx_cq_create_set_eq_id11,
16497 &cq_set->u.request, eq->queue_id);
16500 bf_set(lpfc_mbx_cq_create_set_eq_id12,
16501 &cq_set->u.request, eq->queue_id);
16504 bf_set(lpfc_mbx_cq_create_set_eq_id13,
16505 &cq_set->u.request, eq->queue_id);
16508 bf_set(lpfc_mbx_cq_create_set_eq_id14,
16509 &cq_set->u.request, eq->queue_id);
16512 bf_set(lpfc_mbx_cq_create_set_eq_id15,
16513 &cq_set->u.request, eq->queue_id);
16517 /* link the cq onto the parent eq child list */
16518 list_add_tail(&cq->list, &eq->child_list);
16519 /* Set up completion queue's type and subtype */
16521 cq->subtype = subtype;
16522 cq->assoc_qid = eq->queue_id;
16524 cq->host_index = 0;
16525 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
16526 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
16531 list_for_each_entry(dmabuf, &cq->page_list, list) {
16532 memset(dmabuf->virt, 0, hw_page_size);
16533 cnt = page_idx + dmabuf->buffer_tag;
16534 cq_set->u.request.page[cnt].addr_lo =
16535 putPaddrLow(dmabuf->phys);
16536 cq_set->u.request.page[cnt].addr_hi =
16537 putPaddrHigh(dmabuf->phys);
16543 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16545 /* The IOCTL status is embedded in the mailbox subheader. */
16546 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16547 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16548 if (shdr_status || shdr_add_status || rc) {
16549 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16550 "3119 CQ_CREATE_SET mailbox failed with "
16551 "status x%x add_status x%x, mbx status x%x\n",
16552 shdr_status, shdr_add_status, rc);
16556 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
16557 if (rc == 0xFFFF) {
16562 for (idx = 0; idx < numcq; idx++) {
16564 cq->queue_id = rc + idx;
16565 if (cq->queue_id > phba->sli4_hba.cq_max)
16566 phba->sli4_hba.cq_max = cq->queue_id;
16570 lpfc_sli4_mbox_cmd_free(phba, mbox);
16575 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
16576 * @phba: HBA structure that indicates port to create a queue on.
16577 * @mq: The queue structure to use to create the mailbox queue.
16578 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
16579 * @cq: The completion queue to associate with this cq.
16581 * This function provides failback (fb) functionality when the
16582 * mq_create_ext fails on older FW generations. It's purpose is identical
16583 * to mq_create_ext otherwise.
16585 * This routine cannot fail as all attributes were previously accessed and
16586 * initialized in mq_create_ext.
16589 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
16590 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
16592 struct lpfc_mbx_mq_create *mq_create;
16593 struct lpfc_dmabuf *dmabuf;
16596 length = (sizeof(struct lpfc_mbx_mq_create) -
16597 sizeof(struct lpfc_sli4_cfg_mhdr));
16598 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16599 LPFC_MBOX_OPCODE_MQ_CREATE,
16600 length, LPFC_SLI4_MBX_EMBED);
16601 mq_create = &mbox->u.mqe.un.mq_create;
16602 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
16604 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
16606 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
16607 switch (mq->entry_count) {
16609 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
16610 LPFC_MQ_RING_SIZE_16);
16613 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
16614 LPFC_MQ_RING_SIZE_32);
16617 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
16618 LPFC_MQ_RING_SIZE_64);
16621 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
16622 LPFC_MQ_RING_SIZE_128);
16625 list_for_each_entry(dmabuf, &mq->page_list, list) {
16626 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
16627 putPaddrLow(dmabuf->phys);
16628 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
16629 putPaddrHigh(dmabuf->phys);
16634 * lpfc_mq_create - Create a mailbox Queue on the HBA
16635 * @phba: HBA structure that indicates port to create a queue on.
16636 * @mq: The queue structure to use to create the mailbox queue.
16637 * @cq: The completion queue to associate with this cq.
16638 * @subtype: The queue's subtype.
16640 * This function creates a mailbox queue, as detailed in @mq, on a port,
16641 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
16643 * The @phba struct is used to send mailbox command to HBA. The @cq struct
16644 * is used to get the entry count and entry size that are necessary to
16645 * determine the number of pages to allocate and use for this queue. This
16646 * function will send the MQ_CREATE mailbox command to the HBA to setup the
16647 * mailbox queue. This function is asynchronous and will wait for the mailbox
16648 * command to finish before continuing.
16650 * On success this function will return a zero. If unable to allocate enough
16651 * memory this function will return -ENOMEM. If the queue create mailbox command
16652 * fails this function will return -ENXIO.
16655 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
16656 struct lpfc_queue *cq, uint32_t subtype)
16658 struct lpfc_mbx_mq_create *mq_create;
16659 struct lpfc_mbx_mq_create_ext *mq_create_ext;
16660 struct lpfc_dmabuf *dmabuf;
16661 LPFC_MBOXQ_t *mbox;
16662 int rc, length, status = 0;
16663 uint32_t shdr_status, shdr_add_status;
16664 union lpfc_sli4_cfg_shdr *shdr;
16665 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16667 /* sanity check on queue memory */
16670 if (!phba->sli4_hba.pc_sli4_params.supported)
16671 hw_page_size = SLI4_PAGE_SIZE;
16673 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16676 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
16677 sizeof(struct lpfc_sli4_cfg_mhdr));
16678 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16679 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
16680 length, LPFC_SLI4_MBX_EMBED);
16682 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
16683 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
16684 bf_set(lpfc_mbx_mq_create_ext_num_pages,
16685 &mq_create_ext->u.request, mq->page_count);
16686 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
16687 &mq_create_ext->u.request, 1);
16688 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
16689 &mq_create_ext->u.request, 1);
16690 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
16691 &mq_create_ext->u.request, 1);
16692 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
16693 &mq_create_ext->u.request, 1);
16694 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
16695 &mq_create_ext->u.request, 1);
16696 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
16697 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16698 phba->sli4_hba.pc_sli4_params.mqv);
16699 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
16700 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
16703 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
16705 switch (mq->entry_count) {
16707 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16708 "0362 Unsupported MQ count. (%d)\n",
16710 if (mq->entry_count < 16) {
16714 fallthrough; /* otherwise default to smallest count */
16716 bf_set(lpfc_mq_context_ring_size,
16717 &mq_create_ext->u.request.context,
16718 LPFC_MQ_RING_SIZE_16);
16721 bf_set(lpfc_mq_context_ring_size,
16722 &mq_create_ext->u.request.context,
16723 LPFC_MQ_RING_SIZE_32);
16726 bf_set(lpfc_mq_context_ring_size,
16727 &mq_create_ext->u.request.context,
16728 LPFC_MQ_RING_SIZE_64);
16731 bf_set(lpfc_mq_context_ring_size,
16732 &mq_create_ext->u.request.context,
16733 LPFC_MQ_RING_SIZE_128);
16736 list_for_each_entry(dmabuf, &mq->page_list, list) {
16737 memset(dmabuf->virt, 0, hw_page_size);
16738 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
16739 putPaddrLow(dmabuf->phys);
16740 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
16741 putPaddrHigh(dmabuf->phys);
16743 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16744 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
16745 &mq_create_ext->u.response);
16746 if (rc != MBX_SUCCESS) {
16747 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16748 "2795 MQ_CREATE_EXT failed with "
16749 "status x%x. Failback to MQ_CREATE.\n",
16751 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
16752 mq_create = &mbox->u.mqe.un.mq_create;
16753 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16754 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
16755 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
16756 &mq_create->u.response);
16759 /* The IOCTL status is embedded in the mailbox subheader. */
16760 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16761 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16762 if (shdr_status || shdr_add_status || rc) {
16763 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16764 "2502 MQ_CREATE mailbox failed with "
16765 "status x%x add_status x%x, mbx status x%x\n",
16766 shdr_status, shdr_add_status, rc);
16770 if (mq->queue_id == 0xFFFF) {
16774 mq->type = LPFC_MQ;
16775 mq->assoc_qid = cq->queue_id;
16776 mq->subtype = subtype;
16777 mq->host_index = 0;
16780 /* link the mq onto the parent cq child list */
16781 list_add_tail(&mq->list, &cq->child_list);
16783 mempool_free(mbox, phba->mbox_mem_pool);
16788 * lpfc_wq_create - Create a Work Queue on the HBA
16789 * @phba: HBA structure that indicates port to create a queue on.
16790 * @wq: The queue structure to use to create the work queue.
16791 * @cq: The completion queue to bind this work queue to.
16792 * @subtype: The subtype of the work queue indicating its functionality.
16794 * This function creates a work queue, as detailed in @wq, on a port, described
16795 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
16797 * The @phba struct is used to send mailbox command to HBA. The @wq struct
16798 * is used to get the entry count and entry size that are necessary to
16799 * determine the number of pages to allocate and use for this queue. The @cq
16800 * is used to indicate which completion queue to bind this work queue to. This
16801 * function will send the WQ_CREATE mailbox command to the HBA to setup the
16802 * work queue. This function is asynchronous and will wait for the mailbox
16803 * command to finish before continuing.
16805 * On success this function will return a zero. If unable to allocate enough
16806 * memory this function will return -ENOMEM. If the queue create mailbox command
16807 * fails this function will return -ENXIO.
16810 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
16811 struct lpfc_queue *cq, uint32_t subtype)
16813 struct lpfc_mbx_wq_create *wq_create;
16814 struct lpfc_dmabuf *dmabuf;
16815 LPFC_MBOXQ_t *mbox;
16816 int rc, length, status = 0;
16817 uint32_t shdr_status, shdr_add_status;
16818 union lpfc_sli4_cfg_shdr *shdr;
16819 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16820 struct dma_address *page;
16821 void __iomem *bar_memmap_p;
16822 uint32_t db_offset;
16823 uint16_t pci_barset;
16824 uint8_t dpp_barset;
16825 uint32_t dpp_offset;
16826 uint8_t wq_create_version;
16828 unsigned long pg_addr;
16831 /* sanity check on queue memory */
16834 if (!phba->sli4_hba.pc_sli4_params.supported)
16835 hw_page_size = wq->page_size;
16837 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16840 length = (sizeof(struct lpfc_mbx_wq_create) -
16841 sizeof(struct lpfc_sli4_cfg_mhdr));
16842 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16843 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
16844 length, LPFC_SLI4_MBX_EMBED);
16845 wq_create = &mbox->u.mqe.un.wq_create;
16846 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
16847 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
16849 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
16852 /* wqv is the earliest version supported, NOT the latest */
16853 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16854 phba->sli4_hba.pc_sli4_params.wqv);
16856 if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
16857 (wq->page_size > SLI4_PAGE_SIZE))
16858 wq_create_version = LPFC_Q_CREATE_VERSION_1;
16860 wq_create_version = LPFC_Q_CREATE_VERSION_0;
16862 switch (wq_create_version) {
16863 case LPFC_Q_CREATE_VERSION_1:
16864 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
16866 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16867 LPFC_Q_CREATE_VERSION_1);
16869 switch (wq->entry_size) {
16872 bf_set(lpfc_mbx_wq_create_wqe_size,
16873 &wq_create->u.request_1,
16874 LPFC_WQ_WQE_SIZE_64);
16877 bf_set(lpfc_mbx_wq_create_wqe_size,
16878 &wq_create->u.request_1,
16879 LPFC_WQ_WQE_SIZE_128);
16882 /* Request DPP by default */
16883 bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
16884 bf_set(lpfc_mbx_wq_create_page_size,
16885 &wq_create->u.request_1,
16886 (wq->page_size / SLI4_PAGE_SIZE));
16887 page = wq_create->u.request_1.page;
16890 page = wq_create->u.request.page;
16894 list_for_each_entry(dmabuf, &wq->page_list, list) {
16895 memset(dmabuf->virt, 0, hw_page_size);
16896 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
16897 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
16900 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
16901 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
16903 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16904 /* The IOCTL status is embedded in the mailbox subheader. */
16905 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16906 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16907 if (shdr_status || shdr_add_status || rc) {
16908 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16909 "2503 WQ_CREATE mailbox failed with "
16910 "status x%x add_status x%x, mbx status x%x\n",
16911 shdr_status, shdr_add_status, rc);
16916 if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
16917 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
16918 &wq_create->u.response);
16920 wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
16921 &wq_create->u.response_1);
16923 if (wq->queue_id == 0xFFFF) {
16928 wq->db_format = LPFC_DB_LIST_FORMAT;
16929 if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
16930 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
16931 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
16932 &wq_create->u.response);
16933 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
16934 (wq->db_format != LPFC_DB_RING_FORMAT)) {
16935 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16936 "3265 WQ[%d] doorbell format "
16937 "not supported: x%x\n",
16938 wq->queue_id, wq->db_format);
16942 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
16943 &wq_create->u.response);
16944 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
16946 if (!bar_memmap_p) {
16947 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16948 "3263 WQ[%d] failed to memmap "
16949 "pci barset:x%x\n",
16950 wq->queue_id, pci_barset);
16954 db_offset = wq_create->u.response.doorbell_offset;
16955 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
16956 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
16957 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16958 "3252 WQ[%d] doorbell offset "
16959 "not supported: x%x\n",
16960 wq->queue_id, db_offset);
16964 wq->db_regaddr = bar_memmap_p + db_offset;
16965 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16966 "3264 WQ[%d]: barset:x%x, offset:x%x, "
16967 "format:x%x\n", wq->queue_id,
16968 pci_barset, db_offset, wq->db_format);
16970 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
16972 /* Check if DPP was honored by the firmware */
16973 wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
16974 &wq_create->u.response_1);
16975 if (wq->dpp_enable) {
16976 pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
16977 &wq_create->u.response_1);
16978 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
16980 if (!bar_memmap_p) {
16981 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16982 "3267 WQ[%d] failed to memmap "
16983 "pci barset:x%x\n",
16984 wq->queue_id, pci_barset);
16988 db_offset = wq_create->u.response_1.doorbell_offset;
16989 wq->db_regaddr = bar_memmap_p + db_offset;
16990 wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
16991 &wq_create->u.response_1);
16992 dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
16993 &wq_create->u.response_1);
16994 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
16996 if (!bar_memmap_p) {
16997 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16998 "3268 WQ[%d] failed to memmap "
16999 "pci barset:x%x\n",
17000 wq->queue_id, dpp_barset);
17004 dpp_offset = wq_create->u.response_1.dpp_offset;
17005 wq->dpp_regaddr = bar_memmap_p + dpp_offset;
17006 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
17007 "3271 WQ[%d]: barset:x%x, offset:x%x, "
17008 "dpp_id:x%x dpp_barset:x%x "
17009 "dpp_offset:x%x\n",
17010 wq->queue_id, pci_barset, db_offset,
17011 wq->dpp_id, dpp_barset, dpp_offset);
17014 /* Enable combined writes for DPP aperture */
17015 pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
17016 rc = set_memory_wc(pg_addr, 1);
17018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17019 "3272 Cannot setup Combined "
17020 "Write on WQ[%d] - disable DPP\n",
17022 phba->cfg_enable_dpp = 0;
17025 phba->cfg_enable_dpp = 0;
17028 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
17030 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
17031 if (wq->pring == NULL) {
17035 wq->type = LPFC_WQ;
17036 wq->assoc_qid = cq->queue_id;
17037 wq->subtype = subtype;
17038 wq->host_index = 0;
17040 wq->notify_interval = LPFC_WQ_NOTIFY_INTRVL;
17042 /* link the wq onto the parent cq child list */
17043 list_add_tail(&wq->list, &cq->child_list);
17045 mempool_free(mbox, phba->mbox_mem_pool);
17050 * lpfc_rq_create - Create a Receive Queue on the HBA
17051 * @phba: HBA structure that indicates port to create a queue on.
17052 * @hrq: The queue structure to use to create the header receive queue.
17053 * @drq: The queue structure to use to create the data receive queue.
17054 * @cq: The completion queue to bind this work queue to.
17055 * @subtype: The subtype of the work queue indicating its functionality.
17057 * This function creates a receive buffer queue pair , as detailed in @hrq and
17058 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
17061 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
17062 * struct is used to get the entry count that is necessary to determine the
17063 * number of pages to use for this queue. The @cq is used to indicate which
17064 * completion queue to bind received buffers that are posted to these queues to.
17065 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
17066 * receive queue pair. This function is asynchronous and will wait for the
17067 * mailbox command to finish before continuing.
17069 * On success this function will return a zero. If unable to allocate enough
17070 * memory this function will return -ENOMEM. If the queue create mailbox command
17071 * fails this function will return -ENXIO.
17074 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
17075 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
17077 struct lpfc_mbx_rq_create *rq_create;
17078 struct lpfc_dmabuf *dmabuf;
17079 LPFC_MBOXQ_t *mbox;
17080 int rc, length, status = 0;
17081 uint32_t shdr_status, shdr_add_status;
17082 union lpfc_sli4_cfg_shdr *shdr;
17083 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
17084 void __iomem *bar_memmap_p;
17085 uint32_t db_offset;
17086 uint16_t pci_barset;
17088 /* sanity check on queue memory */
17089 if (!hrq || !drq || !cq)
17091 if (!phba->sli4_hba.pc_sli4_params.supported)
17092 hw_page_size = SLI4_PAGE_SIZE;
17094 if (hrq->entry_count != drq->entry_count)
17096 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17099 length = (sizeof(struct lpfc_mbx_rq_create) -
17100 sizeof(struct lpfc_sli4_cfg_mhdr));
17101 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17102 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
17103 length, LPFC_SLI4_MBX_EMBED);
17104 rq_create = &mbox->u.mqe.un.rq_create;
17105 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
17106 bf_set(lpfc_mbox_hdr_version, &shdr->request,
17107 phba->sli4_hba.pc_sli4_params.rqv);
17108 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
17109 bf_set(lpfc_rq_context_rqe_count_1,
17110 &rq_create->u.request.context,
17112 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
17113 bf_set(lpfc_rq_context_rqe_size,
17114 &rq_create->u.request.context,
17116 bf_set(lpfc_rq_context_page_size,
17117 &rq_create->u.request.context,
17118 LPFC_RQ_PAGE_SIZE_4096);
17120 switch (hrq->entry_count) {
17122 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17123 "2535 Unsupported RQ count. (%d)\n",
17125 if (hrq->entry_count < 512) {
17129 fallthrough; /* otherwise default to smallest count */
17131 bf_set(lpfc_rq_context_rqe_count,
17132 &rq_create->u.request.context,
17133 LPFC_RQ_RING_SIZE_512);
17136 bf_set(lpfc_rq_context_rqe_count,
17137 &rq_create->u.request.context,
17138 LPFC_RQ_RING_SIZE_1024);
17141 bf_set(lpfc_rq_context_rqe_count,
17142 &rq_create->u.request.context,
17143 LPFC_RQ_RING_SIZE_2048);
17146 bf_set(lpfc_rq_context_rqe_count,
17147 &rq_create->u.request.context,
17148 LPFC_RQ_RING_SIZE_4096);
17151 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
17152 LPFC_HDR_BUF_SIZE);
17154 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
17156 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
17158 list_for_each_entry(dmabuf, &hrq->page_list, list) {
17159 memset(dmabuf->virt, 0, hw_page_size);
17160 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
17161 putPaddrLow(dmabuf->phys);
17162 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
17163 putPaddrHigh(dmabuf->phys);
17165 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
17166 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
17168 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17169 /* The IOCTL status is embedded in the mailbox subheader. */
17170 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17171 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17172 if (shdr_status || shdr_add_status || rc) {
17173 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17174 "2504 RQ_CREATE mailbox failed with "
17175 "status x%x add_status x%x, mbx status x%x\n",
17176 shdr_status, shdr_add_status, rc);
17180 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
17181 if (hrq->queue_id == 0xFFFF) {
17186 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
17187 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
17188 &rq_create->u.response);
17189 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
17190 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
17191 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17192 "3262 RQ [%d] doorbell format not "
17193 "supported: x%x\n", hrq->queue_id,
17199 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
17200 &rq_create->u.response);
17201 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
17202 if (!bar_memmap_p) {
17203 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17204 "3269 RQ[%d] failed to memmap pci "
17205 "barset:x%x\n", hrq->queue_id,
17211 db_offset = rq_create->u.response.doorbell_offset;
17212 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
17213 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
17214 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17215 "3270 RQ[%d] doorbell offset not "
17216 "supported: x%x\n", hrq->queue_id,
17221 hrq->db_regaddr = bar_memmap_p + db_offset;
17222 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
17223 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
17224 "format:x%x\n", hrq->queue_id, pci_barset,
17225 db_offset, hrq->db_format);
17227 hrq->db_format = LPFC_DB_RING_FORMAT;
17228 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
17230 hrq->type = LPFC_HRQ;
17231 hrq->assoc_qid = cq->queue_id;
17232 hrq->subtype = subtype;
17233 hrq->host_index = 0;
17234 hrq->hba_index = 0;
17235 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
17237 /* now create the data queue */
17238 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17239 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
17240 length, LPFC_SLI4_MBX_EMBED);
17241 bf_set(lpfc_mbox_hdr_version, &shdr->request,
17242 phba->sli4_hba.pc_sli4_params.rqv);
17243 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
17244 bf_set(lpfc_rq_context_rqe_count_1,
17245 &rq_create->u.request.context, hrq->entry_count);
17246 if (subtype == LPFC_NVMET)
17247 rq_create->u.request.context.buffer_size =
17248 LPFC_NVMET_DATA_BUF_SIZE;
17250 rq_create->u.request.context.buffer_size =
17251 LPFC_DATA_BUF_SIZE;
17252 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
17254 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
17255 (PAGE_SIZE/SLI4_PAGE_SIZE));
17257 switch (drq->entry_count) {
17259 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17260 "2536 Unsupported RQ count. (%d)\n",
17262 if (drq->entry_count < 512) {
17266 fallthrough; /* otherwise default to smallest count */
17268 bf_set(lpfc_rq_context_rqe_count,
17269 &rq_create->u.request.context,
17270 LPFC_RQ_RING_SIZE_512);
17273 bf_set(lpfc_rq_context_rqe_count,
17274 &rq_create->u.request.context,
17275 LPFC_RQ_RING_SIZE_1024);
17278 bf_set(lpfc_rq_context_rqe_count,
17279 &rq_create->u.request.context,
17280 LPFC_RQ_RING_SIZE_2048);
17283 bf_set(lpfc_rq_context_rqe_count,
17284 &rq_create->u.request.context,
17285 LPFC_RQ_RING_SIZE_4096);
17288 if (subtype == LPFC_NVMET)
17289 bf_set(lpfc_rq_context_buf_size,
17290 &rq_create->u.request.context,
17291 LPFC_NVMET_DATA_BUF_SIZE);
17293 bf_set(lpfc_rq_context_buf_size,
17294 &rq_create->u.request.context,
17295 LPFC_DATA_BUF_SIZE);
17297 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
17299 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
17301 list_for_each_entry(dmabuf, &drq->page_list, list) {
17302 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
17303 putPaddrLow(dmabuf->phys);
17304 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
17305 putPaddrHigh(dmabuf->phys);
17307 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
17308 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
17309 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17310 /* The IOCTL status is embedded in the mailbox subheader. */
17311 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
17312 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17313 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17314 if (shdr_status || shdr_add_status || rc) {
17318 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
17319 if (drq->queue_id == 0xFFFF) {
17323 drq->type = LPFC_DRQ;
17324 drq->assoc_qid = cq->queue_id;
17325 drq->subtype = subtype;
17326 drq->host_index = 0;
17327 drq->hba_index = 0;
17328 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
17330 /* link the header and data RQs onto the parent cq child list */
17331 list_add_tail(&hrq->list, &cq->child_list);
17332 list_add_tail(&drq->list, &cq->child_list);
17335 mempool_free(mbox, phba->mbox_mem_pool);
17340 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
17341 * @phba: HBA structure that indicates port to create a queue on.
17342 * @hrqp: The queue structure array to use to create the header receive queues.
17343 * @drqp: The queue structure array to use to create the data receive queues.
17344 * @cqp: The completion queue array to bind these receive queues to.
17345 * @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
17347 * This function creates a receive buffer queue pair , as detailed in @hrq and
17348 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
17351 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
17352 * struct is used to get the entry count that is necessary to determine the
17353 * number of pages to use for this queue. The @cq is used to indicate which
17354 * completion queue to bind received buffers that are posted to these queues to.
17355 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
17356 * receive queue pair. This function is asynchronous and will wait for the
17357 * mailbox command to finish before continuing.
17359 * On success this function will return a zero. If unable to allocate enough
17360 * memory this function will return -ENOMEM. If the queue create mailbox command
17361 * fails this function will return -ENXIO.
17364 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
17365 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
17368 struct lpfc_queue *hrq, *drq, *cq;
17369 struct lpfc_mbx_rq_create_v2 *rq_create;
17370 struct lpfc_dmabuf *dmabuf;
17371 LPFC_MBOXQ_t *mbox;
17372 int rc, length, alloclen, status = 0;
17373 int cnt, idx, numrq, page_idx = 0;
17374 uint32_t shdr_status, shdr_add_status;
17375 union lpfc_sli4_cfg_shdr *shdr;
17376 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
17378 numrq = phba->cfg_nvmet_mrq;
17379 /* sanity check on array memory */
17380 if (!hrqp || !drqp || !cqp || !numrq)
17382 if (!phba->sli4_hba.pc_sli4_params.supported)
17383 hw_page_size = SLI4_PAGE_SIZE;
17385 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17389 length = sizeof(struct lpfc_mbx_rq_create_v2);
17390 length += ((2 * numrq * hrqp[0]->page_count) *
17391 sizeof(struct dma_address));
17393 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17394 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
17395 LPFC_SLI4_MBX_NEMBED);
17396 if (alloclen < length) {
17397 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17398 "3099 Allocated DMA memory size (%d) is "
17399 "less than the requested DMA memory size "
17400 "(%d)\n", alloclen, length);
17407 rq_create = mbox->sge_array->addr[0];
17408 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
17410 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
17413 for (idx = 0; idx < numrq; idx++) {
17418 /* sanity check on queue memory */
17419 if (!hrq || !drq || !cq) {
17424 if (hrq->entry_count != drq->entry_count) {
17430 bf_set(lpfc_mbx_rq_create_num_pages,
17431 &rq_create->u.request,
17433 bf_set(lpfc_mbx_rq_create_rq_cnt,
17434 &rq_create->u.request, (numrq * 2));
17435 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
17437 bf_set(lpfc_rq_context_base_cq,
17438 &rq_create->u.request.context,
17440 bf_set(lpfc_rq_context_data_size,
17441 &rq_create->u.request.context,
17442 LPFC_NVMET_DATA_BUF_SIZE);
17443 bf_set(lpfc_rq_context_hdr_size,
17444 &rq_create->u.request.context,
17445 LPFC_HDR_BUF_SIZE);
17446 bf_set(lpfc_rq_context_rqe_count_1,
17447 &rq_create->u.request.context,
17449 bf_set(lpfc_rq_context_rqe_size,
17450 &rq_create->u.request.context,
17452 bf_set(lpfc_rq_context_page_size,
17453 &rq_create->u.request.context,
17454 (PAGE_SIZE/SLI4_PAGE_SIZE));
17457 list_for_each_entry(dmabuf, &hrq->page_list, list) {
17458 memset(dmabuf->virt, 0, hw_page_size);
17459 cnt = page_idx + dmabuf->buffer_tag;
17460 rq_create->u.request.page[cnt].addr_lo =
17461 putPaddrLow(dmabuf->phys);
17462 rq_create->u.request.page[cnt].addr_hi =
17463 putPaddrHigh(dmabuf->phys);
17469 list_for_each_entry(dmabuf, &drq->page_list, list) {
17470 memset(dmabuf->virt, 0, hw_page_size);
17471 cnt = page_idx + dmabuf->buffer_tag;
17472 rq_create->u.request.page[cnt].addr_lo =
17473 putPaddrLow(dmabuf->phys);
17474 rq_create->u.request.page[cnt].addr_hi =
17475 putPaddrHigh(dmabuf->phys);
17480 hrq->db_format = LPFC_DB_RING_FORMAT;
17481 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
17482 hrq->type = LPFC_HRQ;
17483 hrq->assoc_qid = cq->queue_id;
17484 hrq->subtype = subtype;
17485 hrq->host_index = 0;
17486 hrq->hba_index = 0;
17487 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
17489 drq->db_format = LPFC_DB_RING_FORMAT;
17490 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
17491 drq->type = LPFC_DRQ;
17492 drq->assoc_qid = cq->queue_id;
17493 drq->subtype = subtype;
17494 drq->host_index = 0;
17495 drq->hba_index = 0;
17496 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
17498 list_add_tail(&hrq->list, &cq->child_list);
17499 list_add_tail(&drq->list, &cq->child_list);
17502 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17503 /* The IOCTL status is embedded in the mailbox subheader. */
17504 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17505 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17506 if (shdr_status || shdr_add_status || rc) {
17507 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17508 "3120 RQ_CREATE mailbox failed with "
17509 "status x%x add_status x%x, mbx status x%x\n",
17510 shdr_status, shdr_add_status, rc);
17514 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
17515 if (rc == 0xFFFF) {
17520 /* Initialize all RQs with associated queue id */
17521 for (idx = 0; idx < numrq; idx++) {
17523 hrq->queue_id = rc + (2 * idx);
17525 drq->queue_id = rc + (2 * idx) + 1;
17529 lpfc_sli4_mbox_cmd_free(phba, mbox);
17534 * lpfc_eq_destroy - Destroy an event Queue on the HBA
17535 * @phba: HBA structure that indicates port to destroy a queue on.
17536 * @eq: The queue structure associated with the queue to destroy.
17538 * This function destroys a queue, as detailed in @eq by sending an mailbox
17539 * command, specific to the type of queue, to the HBA.
17541 * The @eq struct is used to get the queue ID of the queue to destroy.
17543 * On success this function will return a zero. If the queue destroy mailbox
17544 * command fails this function will return -ENXIO.
17547 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
17549 LPFC_MBOXQ_t *mbox;
17550 int rc, length, status = 0;
17551 uint32_t shdr_status, shdr_add_status;
17552 union lpfc_sli4_cfg_shdr *shdr;
17554 /* sanity check on queue memory */
17558 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
17561 length = (sizeof(struct lpfc_mbx_eq_destroy) -
17562 sizeof(struct lpfc_sli4_cfg_mhdr));
17563 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
17564 LPFC_MBOX_OPCODE_EQ_DESTROY,
17565 length, LPFC_SLI4_MBX_EMBED);
17566 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
17568 mbox->vport = eq->phba->pport;
17569 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17571 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
17572 /* The IOCTL status is embedded in the mailbox subheader. */
17573 shdr = (union lpfc_sli4_cfg_shdr *)
17574 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
17575 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17576 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17577 if (shdr_status || shdr_add_status || rc) {
17578 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17579 "2505 EQ_DESTROY mailbox failed with "
17580 "status x%x add_status x%x, mbx status x%x\n",
17581 shdr_status, shdr_add_status, rc);
17585 /* Remove eq from any list */
17586 list_del_init(&eq->list);
17587 mempool_free(mbox, eq->phba->mbox_mem_pool);
17592 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
17593 * @phba: HBA structure that indicates port to destroy a queue on.
17594 * @cq: The queue structure associated with the queue to destroy.
17596 * This function destroys a queue, as detailed in @cq by sending an mailbox
17597 * command, specific to the type of queue, to the HBA.
17599 * The @cq struct is used to get the queue ID of the queue to destroy.
17601 * On success this function will return a zero. If the queue destroy mailbox
17602 * command fails this function will return -ENXIO.
17605 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
17607 LPFC_MBOXQ_t *mbox;
17608 int rc, length, status = 0;
17609 uint32_t shdr_status, shdr_add_status;
17610 union lpfc_sli4_cfg_shdr *shdr;
17612 /* sanity check on queue memory */
17615 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
17618 length = (sizeof(struct lpfc_mbx_cq_destroy) -
17619 sizeof(struct lpfc_sli4_cfg_mhdr));
17620 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
17621 LPFC_MBOX_OPCODE_CQ_DESTROY,
17622 length, LPFC_SLI4_MBX_EMBED);
17623 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
17625 mbox->vport = cq->phba->pport;
17626 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17627 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
17628 /* The IOCTL status is embedded in the mailbox subheader. */
17629 shdr = (union lpfc_sli4_cfg_shdr *)
17630 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
17631 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17632 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17633 if (shdr_status || shdr_add_status || rc) {
17634 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17635 "2506 CQ_DESTROY mailbox failed with "
17636 "status x%x add_status x%x, mbx status x%x\n",
17637 shdr_status, shdr_add_status, rc);
17640 /* Remove cq from any list */
17641 list_del_init(&cq->list);
17642 mempool_free(mbox, cq->phba->mbox_mem_pool);
17647 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
17648 * @phba: HBA structure that indicates port to destroy a queue on.
17649 * @mq: The queue structure associated with the queue to destroy.
17651 * This function destroys a queue, as detailed in @mq by sending an mailbox
17652 * command, specific to the type of queue, to the HBA.
17654 * The @mq struct is used to get the queue ID of the queue to destroy.
17656 * On success this function will return a zero. If the queue destroy mailbox
17657 * command fails this function will return -ENXIO.
17660 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
17662 LPFC_MBOXQ_t *mbox;
17663 int rc, length, status = 0;
17664 uint32_t shdr_status, shdr_add_status;
17665 union lpfc_sli4_cfg_shdr *shdr;
17667 /* sanity check on queue memory */
17670 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
17673 length = (sizeof(struct lpfc_mbx_mq_destroy) -
17674 sizeof(struct lpfc_sli4_cfg_mhdr));
17675 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
17676 LPFC_MBOX_OPCODE_MQ_DESTROY,
17677 length, LPFC_SLI4_MBX_EMBED);
17678 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
17680 mbox->vport = mq->phba->pport;
17681 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17682 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
17683 /* The IOCTL status is embedded in the mailbox subheader. */
17684 shdr = (union lpfc_sli4_cfg_shdr *)
17685 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
17686 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17687 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17688 if (shdr_status || shdr_add_status || rc) {
17689 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17690 "2507 MQ_DESTROY mailbox failed with "
17691 "status x%x add_status x%x, mbx status x%x\n",
17692 shdr_status, shdr_add_status, rc);
17695 /* Remove mq from any list */
17696 list_del_init(&mq->list);
17697 mempool_free(mbox, mq->phba->mbox_mem_pool);
17702 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
17703 * @phba: HBA structure that indicates port to destroy a queue on.
17704 * @wq: The queue structure associated with the queue to destroy.
17706 * This function destroys a queue, as detailed in @wq by sending an mailbox
17707 * command, specific to the type of queue, to the HBA.
17709 * The @wq struct is used to get the queue ID of the queue to destroy.
17711 * On success this function will return a zero. If the queue destroy mailbox
17712 * command fails this function will return -ENXIO.
17715 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
17717 LPFC_MBOXQ_t *mbox;
17718 int rc, length, status = 0;
17719 uint32_t shdr_status, shdr_add_status;
17720 union lpfc_sli4_cfg_shdr *shdr;
17722 /* sanity check on queue memory */
17725 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
17728 length = (sizeof(struct lpfc_mbx_wq_destroy) -
17729 sizeof(struct lpfc_sli4_cfg_mhdr));
17730 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17731 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
17732 length, LPFC_SLI4_MBX_EMBED);
17733 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
17735 mbox->vport = wq->phba->pport;
17736 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17737 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
17738 shdr = (union lpfc_sli4_cfg_shdr *)
17739 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
17740 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17741 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17742 if (shdr_status || shdr_add_status || rc) {
17743 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17744 "2508 WQ_DESTROY mailbox failed with "
17745 "status x%x add_status x%x, mbx status x%x\n",
17746 shdr_status, shdr_add_status, rc);
17749 /* Remove wq from any list */
17750 list_del_init(&wq->list);
17753 mempool_free(mbox, wq->phba->mbox_mem_pool);
17758 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
17759 * @phba: HBA structure that indicates port to destroy a queue on.
17760 * @hrq: The queue structure associated with the queue to destroy.
17761 * @drq: The queue structure associated with the queue to destroy.
17763 * This function destroys a queue, as detailed in @rq by sending an mailbox
17764 * command, specific to the type of queue, to the HBA.
17766 * The @rq struct is used to get the queue ID of the queue to destroy.
17768 * On success this function will return a zero. If the queue destroy mailbox
17769 * command fails this function will return -ENXIO.
17772 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
17773 struct lpfc_queue *drq)
17775 LPFC_MBOXQ_t *mbox;
17776 int rc, length, status = 0;
17777 uint32_t shdr_status, shdr_add_status;
17778 union lpfc_sli4_cfg_shdr *shdr;
17780 /* sanity check on queue memory */
17783 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
17786 length = (sizeof(struct lpfc_mbx_rq_destroy) -
17787 sizeof(struct lpfc_sli4_cfg_mhdr));
17788 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17789 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
17790 length, LPFC_SLI4_MBX_EMBED);
17791 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
17793 mbox->vport = hrq->phba->pport;
17794 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17795 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
17796 /* The IOCTL status is embedded in the mailbox subheader. */
17797 shdr = (union lpfc_sli4_cfg_shdr *)
17798 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
17799 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17800 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17801 if (shdr_status || shdr_add_status || rc) {
17802 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17803 "2509 RQ_DESTROY mailbox failed with "
17804 "status x%x add_status x%x, mbx status x%x\n",
17805 shdr_status, shdr_add_status, rc);
17806 mempool_free(mbox, hrq->phba->mbox_mem_pool);
17809 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
17811 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
17812 shdr = (union lpfc_sli4_cfg_shdr *)
17813 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
17814 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17815 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17816 if (shdr_status || shdr_add_status || rc) {
17817 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17818 "2510 RQ_DESTROY mailbox failed with "
17819 "status x%x add_status x%x, mbx status x%x\n",
17820 shdr_status, shdr_add_status, rc);
17823 list_del_init(&hrq->list);
17824 list_del_init(&drq->list);
17825 mempool_free(mbox, hrq->phba->mbox_mem_pool);
17830 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
17831 * @phba: The virtual port for which this call being executed.
17832 * @pdma_phys_addr0: Physical address of the 1st SGL page.
17833 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
17834 * @xritag: the xritag that ties this io to the SGL pages.
17836 * This routine will post the sgl pages for the IO that has the xritag
17837 * that is in the iocbq structure. The xritag is assigned during iocbq
17838 * creation and persists for as long as the driver is loaded.
17839 * if the caller has fewer than 256 scatter gather segments to map then
17840 * pdma_phys_addr1 should be 0.
17841 * If the caller needs to map more than 256 scatter gather segment then
17842 * pdma_phys_addr1 should be a valid physical address.
17843 * physical address for SGLs must be 64 byte aligned.
17844 * If you are going to map 2 SGL's then the first one must have 256 entries
17845 * the second sgl can have between 1 and 256 entries.
17849 * -ENXIO, -ENOMEM - Failure
17852 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
17853 dma_addr_t pdma_phys_addr0,
17854 dma_addr_t pdma_phys_addr1,
17857 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
17858 LPFC_MBOXQ_t *mbox;
17860 uint32_t shdr_status, shdr_add_status;
17862 union lpfc_sli4_cfg_shdr *shdr;
17864 if (xritag == NO_XRI) {
17865 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17866 "0364 Invalid param:\n");
17870 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17874 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17875 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
17876 sizeof(struct lpfc_mbx_post_sgl_pages) -
17877 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
17879 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
17880 &mbox->u.mqe.un.post_sgl_pages;
17881 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
17882 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
17884 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
17885 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
17886 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
17887 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
17889 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
17890 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
17891 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
17892 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
17893 if (!phba->sli4_hba.intr_enable)
17894 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17896 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
17897 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
17899 /* The IOCTL status is embedded in the mailbox subheader. */
17900 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
17901 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17902 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17903 if (!phba->sli4_hba.intr_enable)
17904 mempool_free(mbox, phba->mbox_mem_pool);
17905 else if (rc != MBX_TIMEOUT)
17906 mempool_free(mbox, phba->mbox_mem_pool);
17907 if (shdr_status || shdr_add_status || rc) {
17908 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17909 "2511 POST_SGL mailbox failed with "
17910 "status x%x add_status x%x, mbx status x%x\n",
17911 shdr_status, shdr_add_status, rc);
17917 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
17918 * @phba: pointer to lpfc hba data structure.
17920 * This routine is invoked to post rpi header templates to the
17921 * HBA consistent with the SLI-4 interface spec. This routine
17922 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17923 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17926 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
17927 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
17930 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
17935 * Fetch the next logical xri. Because this index is logical,
17936 * the driver starts at 0 each time.
17938 spin_lock_irq(&phba->hbalock);
17939 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
17940 phba->sli4_hba.max_cfg_param.max_xri, 0);
17941 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
17942 spin_unlock_irq(&phba->hbalock);
17945 set_bit(xri, phba->sli4_hba.xri_bmask);
17946 phba->sli4_hba.max_cfg_param.xri_used++;
17948 spin_unlock_irq(&phba->hbalock);
17953 * __lpfc_sli4_free_xri - Release an xri for reuse.
17954 * @phba: pointer to lpfc hba data structure.
17955 * @xri: xri to release.
17957 * This routine is invoked to release an xri to the pool of
17958 * available rpis maintained by the driver.
17961 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
17963 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
17964 phba->sli4_hba.max_cfg_param.xri_used--;
17969 * lpfc_sli4_free_xri - Release an xri for reuse.
17970 * @phba: pointer to lpfc hba data structure.
17971 * @xri: xri to release.
17973 * This routine is invoked to release an xri to the pool of
17974 * available rpis maintained by the driver.
17977 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
17979 spin_lock_irq(&phba->hbalock);
17980 __lpfc_sli4_free_xri(phba, xri);
17981 spin_unlock_irq(&phba->hbalock);
17985 * lpfc_sli4_next_xritag - Get an xritag for the io
17986 * @phba: Pointer to HBA context object.
17988 * This function gets an xritag for the iocb. If there is no unused xritag
17989 * it will return 0xffff.
17990 * The function returns the allocated xritag if successful, else returns zero.
17991 * Zero is not a valid xritag.
17992 * The caller is not required to hold any lock.
17995 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
17997 uint16_t xri_index;
17999 xri_index = lpfc_sli4_alloc_xri(phba);
18000 if (xri_index == NO_XRI)
18001 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
18002 "2004 Failed to allocate XRI.last XRITAG is %d"
18003 " Max XRI is %d, Used XRI is %d\n",
18005 phba->sli4_hba.max_cfg_param.max_xri,
18006 phba->sli4_hba.max_cfg_param.xri_used);
18011 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
18012 * @phba: pointer to lpfc hba data structure.
18013 * @post_sgl_list: pointer to els sgl entry list.
18014 * @post_cnt: number of els sgl entries on the list.
18016 * This routine is invoked to post a block of driver's sgl pages to the
18017 * HBA using non-embedded mailbox command. No Lock is held. This routine
18018 * is only called when the driver is loading and after all IO has been
18022 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
18023 struct list_head *post_sgl_list,
18026 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
18027 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
18028 struct sgl_page_pairs *sgl_pg_pairs;
18030 LPFC_MBOXQ_t *mbox;
18031 uint32_t reqlen, alloclen, pg_pairs;
18033 uint16_t xritag_start = 0;
18035 uint32_t shdr_status, shdr_add_status;
18036 union lpfc_sli4_cfg_shdr *shdr;
18038 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
18039 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
18040 if (reqlen > SLI4_PAGE_SIZE) {
18041 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18042 "2559 Block sgl registration required DMA "
18043 "size (%d) great than a page\n", reqlen);
18047 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18051 /* Allocate DMA memory and set up the non-embedded mailbox command */
18052 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18053 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
18054 LPFC_SLI4_MBX_NEMBED);
18056 if (alloclen < reqlen) {
18057 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18058 "0285 Allocated DMA memory size (%d) is "
18059 "less than the requested DMA memory "
18060 "size (%d)\n", alloclen, reqlen);
18061 lpfc_sli4_mbox_cmd_free(phba, mbox);
18064 /* Set up the SGL pages in the non-embedded DMA pages */
18065 viraddr = mbox->sge_array->addr[0];
18066 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
18067 sgl_pg_pairs = &sgl->sgl_pg_pairs;
18070 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
18071 /* Set up the sge entry */
18072 sgl_pg_pairs->sgl_pg0_addr_lo =
18073 cpu_to_le32(putPaddrLow(sglq_entry->phys));
18074 sgl_pg_pairs->sgl_pg0_addr_hi =
18075 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
18076 sgl_pg_pairs->sgl_pg1_addr_lo =
18077 cpu_to_le32(putPaddrLow(0));
18078 sgl_pg_pairs->sgl_pg1_addr_hi =
18079 cpu_to_le32(putPaddrHigh(0));
18081 /* Keep the first xritag on the list */
18083 xritag_start = sglq_entry->sli4_xritag;
18088 /* Complete initialization and perform endian conversion. */
18089 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
18090 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
18091 sgl->word0 = cpu_to_le32(sgl->word0);
18093 if (!phba->sli4_hba.intr_enable)
18094 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
18096 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
18097 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
18099 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
18100 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18101 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18102 if (!phba->sli4_hba.intr_enable)
18103 lpfc_sli4_mbox_cmd_free(phba, mbox);
18104 else if (rc != MBX_TIMEOUT)
18105 lpfc_sli4_mbox_cmd_free(phba, mbox);
18106 if (shdr_status || shdr_add_status || rc) {
18107 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18108 "2513 POST_SGL_BLOCK mailbox command failed "
18109 "status x%x add_status x%x mbx status x%x\n",
18110 shdr_status, shdr_add_status, rc);
18117 * lpfc_sli4_post_io_sgl_block - post a block of nvme sgl list to firmware
18118 * @phba: pointer to lpfc hba data structure.
18119 * @nblist: pointer to nvme buffer list.
18120 * @count: number of scsi buffers on the list.
18122 * This routine is invoked to post a block of @count scsi sgl pages from a
18123 * SCSI buffer list @nblist to the HBA using non-embedded mailbox command.
18128 lpfc_sli4_post_io_sgl_block(struct lpfc_hba *phba, struct list_head *nblist,
18131 struct lpfc_io_buf *lpfc_ncmd;
18132 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
18133 struct sgl_page_pairs *sgl_pg_pairs;
18135 LPFC_MBOXQ_t *mbox;
18136 uint32_t reqlen, alloclen, pg_pairs;
18138 uint16_t xritag_start = 0;
18140 uint32_t shdr_status, shdr_add_status;
18141 dma_addr_t pdma_phys_bpl1;
18142 union lpfc_sli4_cfg_shdr *shdr;
18144 /* Calculate the requested length of the dma memory */
18145 reqlen = count * sizeof(struct sgl_page_pairs) +
18146 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
18147 if (reqlen > SLI4_PAGE_SIZE) {
18148 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
18149 "6118 Block sgl registration required DMA "
18150 "size (%d) great than a page\n", reqlen);
18153 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18155 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18156 "6119 Failed to allocate mbox cmd memory\n");
18160 /* Allocate DMA memory and set up the non-embedded mailbox command */
18161 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18162 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
18163 reqlen, LPFC_SLI4_MBX_NEMBED);
18165 if (alloclen < reqlen) {
18166 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18167 "6120 Allocated DMA memory size (%d) is "
18168 "less than the requested DMA memory "
18169 "size (%d)\n", alloclen, reqlen);
18170 lpfc_sli4_mbox_cmd_free(phba, mbox);
18174 /* Get the first SGE entry from the non-embedded DMA memory */
18175 viraddr = mbox->sge_array->addr[0];
18177 /* Set up the SGL pages in the non-embedded DMA pages */
18178 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
18179 sgl_pg_pairs = &sgl->sgl_pg_pairs;
18182 list_for_each_entry(lpfc_ncmd, nblist, list) {
18183 /* Set up the sge entry */
18184 sgl_pg_pairs->sgl_pg0_addr_lo =
18185 cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl));
18186 sgl_pg_pairs->sgl_pg0_addr_hi =
18187 cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl));
18188 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
18189 pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl +
18192 pdma_phys_bpl1 = 0;
18193 sgl_pg_pairs->sgl_pg1_addr_lo =
18194 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
18195 sgl_pg_pairs->sgl_pg1_addr_hi =
18196 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
18197 /* Keep the first xritag on the list */
18199 xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag;
18203 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
18204 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
18205 /* Perform endian conversion if necessary */
18206 sgl->word0 = cpu_to_le32(sgl->word0);
18208 if (!phba->sli4_hba.intr_enable) {
18209 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
18211 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
18212 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
18214 shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr;
18215 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18216 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18217 if (!phba->sli4_hba.intr_enable)
18218 lpfc_sli4_mbox_cmd_free(phba, mbox);
18219 else if (rc != MBX_TIMEOUT)
18220 lpfc_sli4_mbox_cmd_free(phba, mbox);
18221 if (shdr_status || shdr_add_status || rc) {
18222 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18223 "6125 POST_SGL_BLOCK mailbox command failed "
18224 "status x%x add_status x%x mbx status x%x\n",
18225 shdr_status, shdr_add_status, rc);
18232 * lpfc_sli4_post_io_sgl_list - Post blocks of nvme buffer sgls from a list
18233 * @phba: pointer to lpfc hba data structure.
18234 * @post_nblist: pointer to the nvme buffer list.
18235 * @sb_count: number of nvme buffers.
18237 * This routine walks a list of nvme buffers that was passed in. It attempts
18238 * to construct blocks of nvme buffer sgls which contains contiguous xris and
18239 * uses the non-embedded SGL block post mailbox commands to post to the port.
18240 * For single NVME buffer sgl with non-contiguous xri, if any, it shall use
18241 * embedded SGL post mailbox command for posting. The @post_nblist passed in
18242 * must be local list, thus no lock is needed when manipulate the list.
18244 * Returns: 0 = failure, non-zero number of successfully posted buffers.
18247 lpfc_sli4_post_io_sgl_list(struct lpfc_hba *phba,
18248 struct list_head *post_nblist, int sb_count)
18250 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
18251 int status, sgl_size;
18252 int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0;
18253 dma_addr_t pdma_phys_sgl1;
18254 int last_xritag = NO_XRI;
18256 LIST_HEAD(prep_nblist);
18257 LIST_HEAD(blck_nblist);
18258 LIST_HEAD(nvme_nblist);
18264 sgl_size = phba->cfg_sg_dma_buf_size;
18265 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) {
18266 list_del_init(&lpfc_ncmd->list);
18268 if ((last_xritag != NO_XRI) &&
18269 (lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) {
18270 /* a hole in xri block, form a sgl posting block */
18271 list_splice_init(&prep_nblist, &blck_nblist);
18272 post_cnt = block_cnt - 1;
18273 /* prepare list for next posting block */
18274 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
18277 /* prepare list for next posting block */
18278 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
18279 /* enough sgls for non-embed sgl mbox command */
18280 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
18281 list_splice_init(&prep_nblist, &blck_nblist);
18282 post_cnt = block_cnt;
18287 last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
18289 /* end of repost sgl list condition for NVME buffers */
18290 if (num_posting == sb_count) {
18291 if (post_cnt == 0) {
18292 /* last sgl posting block */
18293 list_splice_init(&prep_nblist, &blck_nblist);
18294 post_cnt = block_cnt;
18295 } else if (block_cnt == 1) {
18296 /* last single sgl with non-contiguous xri */
18297 if (sgl_size > SGL_PAGE_SIZE)
18299 lpfc_ncmd->dma_phys_sgl +
18302 pdma_phys_sgl1 = 0;
18303 cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
18304 status = lpfc_sli4_post_sgl(
18305 phba, lpfc_ncmd->dma_phys_sgl,
18306 pdma_phys_sgl1, cur_xritag);
18308 /* Post error. Buffer unavailable. */
18309 lpfc_ncmd->flags |=
18310 LPFC_SBUF_NOT_POSTED;
18312 /* Post success. Bffer available. */
18313 lpfc_ncmd->flags &=
18314 ~LPFC_SBUF_NOT_POSTED;
18315 lpfc_ncmd->status = IOSTAT_SUCCESS;
18318 /* success, put on NVME buffer sgl list */
18319 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
18323 /* continue until a nembed page worth of sgls */
18327 /* post block of NVME buffer list sgls */
18328 status = lpfc_sli4_post_io_sgl_block(phba, &blck_nblist,
18331 /* don't reset xirtag due to hole in xri block */
18332 if (block_cnt == 0)
18333 last_xritag = NO_XRI;
18335 /* reset NVME buffer post count for next round of posting */
18338 /* put posted NVME buffer-sgl posted on NVME buffer sgl list */
18339 while (!list_empty(&blck_nblist)) {
18340 list_remove_head(&blck_nblist, lpfc_ncmd,
18341 struct lpfc_io_buf, list);
18343 /* Post error. Mark buffer unavailable. */
18344 lpfc_ncmd->flags |= LPFC_SBUF_NOT_POSTED;
18346 /* Post success, Mark buffer available. */
18347 lpfc_ncmd->flags &= ~LPFC_SBUF_NOT_POSTED;
18348 lpfc_ncmd->status = IOSTAT_SUCCESS;
18351 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
18354 /* Push NVME buffers with sgl posted to the available list */
18355 lpfc_io_buf_replenish(phba, &nvme_nblist);
18361 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
18362 * @phba: pointer to lpfc_hba struct that the frame was received on
18363 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
18365 * This function checks the fields in the @fc_hdr to see if the FC frame is a
18366 * valid type of frame that the LPFC driver will handle. This function will
18367 * return a zero if the frame is a valid frame or a non zero value when the
18368 * frame does not pass the check.
18371 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
18373 /* make rctl_names static to save stack space */
18374 struct fc_vft_header *fc_vft_hdr;
18375 uint32_t *header = (uint32_t *) fc_hdr;
18377 #define FC_RCTL_MDS_DIAGS 0xF4
18379 switch (fc_hdr->fh_r_ctl) {
18380 case FC_RCTL_DD_UNCAT: /* uncategorized information */
18381 case FC_RCTL_DD_SOL_DATA: /* solicited data */
18382 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
18383 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
18384 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
18385 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
18386 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
18387 case FC_RCTL_DD_CMD_STATUS: /* command status */
18388 case FC_RCTL_ELS_REQ: /* extended link services request */
18389 case FC_RCTL_ELS_REP: /* extended link services reply */
18390 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
18391 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
18392 case FC_RCTL_BA_NOP: /* basic link service NOP */
18393 case FC_RCTL_BA_ABTS: /* basic link service abort */
18394 case FC_RCTL_BA_RMC: /* remove connection */
18395 case FC_RCTL_BA_ACC: /* basic accept */
18396 case FC_RCTL_BA_RJT: /* basic reject */
18397 case FC_RCTL_BA_PRMT:
18398 case FC_RCTL_ACK_1: /* acknowledge_1 */
18399 case FC_RCTL_ACK_0: /* acknowledge_0 */
18400 case FC_RCTL_P_RJT: /* port reject */
18401 case FC_RCTL_F_RJT: /* fabric reject */
18402 case FC_RCTL_P_BSY: /* port busy */
18403 case FC_RCTL_F_BSY: /* fabric busy to data frame */
18404 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
18405 case FC_RCTL_LCR: /* link credit reset */
18406 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
18407 case FC_RCTL_END: /* end */
18409 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
18410 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
18411 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
18412 return lpfc_fc_frame_check(phba, fc_hdr);
18417 switch (fc_hdr->fh_type) {
18430 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
18431 "2538 Received frame rctl:x%x, type:x%x, "
18432 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
18433 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
18434 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
18435 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
18436 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
18437 be32_to_cpu(header[6]));
18440 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
18441 "2539 Dropped frame rctl:x%x type:x%x\n",
18442 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
18447 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
18448 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
18450 * This function processes the FC header to retrieve the VFI from the VF
18451 * header, if one exists. This function will return the VFI if one exists
18452 * or 0 if no VSAN Header exists.
18455 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
18457 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
18459 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
18461 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
18465 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
18466 * @phba: Pointer to the HBA structure to search for the vport on
18467 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
18468 * @fcfi: The FC Fabric ID that the frame came from
18469 * @did: Destination ID to match against
18471 * This function searches the @phba for a vport that matches the content of the
18472 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
18473 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
18474 * returns the matching vport pointer or NULL if unable to match frame to a
18477 static struct lpfc_vport *
18478 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
18479 uint16_t fcfi, uint32_t did)
18481 struct lpfc_vport **vports;
18482 struct lpfc_vport *vport = NULL;
18485 if (did == Fabric_DID)
18486 return phba->pport;
18487 if ((phba->pport->fc_flag & FC_PT2PT) &&
18488 !(phba->link_state == LPFC_HBA_READY))
18489 return phba->pport;
18491 vports = lpfc_create_vport_work_array(phba);
18492 if (vports != NULL) {
18493 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
18494 if (phba->fcf.fcfi == fcfi &&
18495 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
18496 vports[i]->fc_myDID == did) {
18502 lpfc_destroy_vport_work_array(phba, vports);
18507 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
18508 * @vport: The vport to work on.
18510 * This function updates the receive sequence time stamp for this vport. The
18511 * receive sequence time stamp indicates the time that the last frame of the
18512 * the sequence that has been idle for the longest amount of time was received.
18513 * the driver uses this time stamp to indicate if any received sequences have
18517 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
18519 struct lpfc_dmabuf *h_buf;
18520 struct hbq_dmabuf *dmabuf = NULL;
18522 /* get the oldest sequence on the rcv list */
18523 h_buf = list_get_first(&vport->rcv_buffer_list,
18524 struct lpfc_dmabuf, list);
18527 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18528 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
18532 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
18533 * @vport: The vport that the received sequences were sent to.
18535 * This function cleans up all outstanding received sequences. This is called
18536 * by the driver when a link event or user action invalidates all the received
18540 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
18542 struct lpfc_dmabuf *h_buf, *hnext;
18543 struct lpfc_dmabuf *d_buf, *dnext;
18544 struct hbq_dmabuf *dmabuf = NULL;
18546 /* start with the oldest sequence on the rcv list */
18547 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
18548 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18549 list_del_init(&dmabuf->hbuf.list);
18550 list_for_each_entry_safe(d_buf, dnext,
18551 &dmabuf->dbuf.list, list) {
18552 list_del_init(&d_buf->list);
18553 lpfc_in_buf_free(vport->phba, d_buf);
18555 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
18560 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
18561 * @vport: The vport that the received sequences were sent to.
18563 * This function determines whether any received sequences have timed out by
18564 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
18565 * indicates that there is at least one timed out sequence this routine will
18566 * go through the received sequences one at a time from most inactive to most
18567 * active to determine which ones need to be cleaned up. Once it has determined
18568 * that a sequence needs to be cleaned up it will simply free up the resources
18569 * without sending an abort.
18572 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
18574 struct lpfc_dmabuf *h_buf, *hnext;
18575 struct lpfc_dmabuf *d_buf, *dnext;
18576 struct hbq_dmabuf *dmabuf = NULL;
18577 unsigned long timeout;
18578 int abort_count = 0;
18580 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
18581 vport->rcv_buffer_time_stamp);
18582 if (list_empty(&vport->rcv_buffer_list) ||
18583 time_before(jiffies, timeout))
18585 /* start with the oldest sequence on the rcv list */
18586 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
18587 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18588 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
18589 dmabuf->time_stamp);
18590 if (time_before(jiffies, timeout))
18593 list_del_init(&dmabuf->hbuf.list);
18594 list_for_each_entry_safe(d_buf, dnext,
18595 &dmabuf->dbuf.list, list) {
18596 list_del_init(&d_buf->list);
18597 lpfc_in_buf_free(vport->phba, d_buf);
18599 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
18602 lpfc_update_rcv_time_stamp(vport);
18606 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
18607 * @vport: pointer to a vitural port
18608 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
18610 * This function searches through the existing incomplete sequences that have
18611 * been sent to this @vport. If the frame matches one of the incomplete
18612 * sequences then the dbuf in the @dmabuf is added to the list of frames that
18613 * make up that sequence. If no sequence is found that matches this frame then
18614 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
18615 * This function returns a pointer to the first dmabuf in the sequence list that
18616 * the frame was linked to.
18618 static struct hbq_dmabuf *
18619 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
18621 struct fc_frame_header *new_hdr;
18622 struct fc_frame_header *temp_hdr;
18623 struct lpfc_dmabuf *d_buf;
18624 struct lpfc_dmabuf *h_buf;
18625 struct hbq_dmabuf *seq_dmabuf = NULL;
18626 struct hbq_dmabuf *temp_dmabuf = NULL;
18629 INIT_LIST_HEAD(&dmabuf->dbuf.list);
18630 dmabuf->time_stamp = jiffies;
18631 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18633 /* Use the hdr_buf to find the sequence that this frame belongs to */
18634 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
18635 temp_hdr = (struct fc_frame_header *)h_buf->virt;
18636 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
18637 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
18638 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
18640 /* found a pending sequence that matches this frame */
18641 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18646 * This indicates first frame received for this sequence.
18647 * Queue the buffer on the vport's rcv_buffer_list.
18649 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
18650 lpfc_update_rcv_time_stamp(vport);
18653 temp_hdr = seq_dmabuf->hbuf.virt;
18654 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
18655 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
18656 list_del_init(&seq_dmabuf->hbuf.list);
18657 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
18658 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
18659 lpfc_update_rcv_time_stamp(vport);
18662 /* move this sequence to the tail to indicate a young sequence */
18663 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
18664 seq_dmabuf->time_stamp = jiffies;
18665 lpfc_update_rcv_time_stamp(vport);
18666 if (list_empty(&seq_dmabuf->dbuf.list)) {
18667 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
18670 /* find the correct place in the sequence to insert this frame */
18671 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
18673 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
18674 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
18676 * If the frame's sequence count is greater than the frame on
18677 * the list then insert the frame right after this frame
18679 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
18680 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
18681 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
18686 if (&d_buf->list == &seq_dmabuf->dbuf.list)
18688 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
18697 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
18698 * @vport: pointer to a vitural port
18699 * @dmabuf: pointer to a dmabuf that describes the FC sequence
18701 * This function tries to abort from the partially assembed sequence, described
18702 * by the information from basic abbort @dmabuf. It checks to see whether such
18703 * partially assembled sequence held by the driver. If so, it shall free up all
18704 * the frames from the partially assembled sequence.
18707 * true -- if there is matching partially assembled sequence present and all
18708 * the frames freed with the sequence;
18709 * false -- if there is no matching partially assembled sequence present so
18710 * nothing got aborted in the lower layer driver
18713 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
18714 struct hbq_dmabuf *dmabuf)
18716 struct fc_frame_header *new_hdr;
18717 struct fc_frame_header *temp_hdr;
18718 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
18719 struct hbq_dmabuf *seq_dmabuf = NULL;
18721 /* Use the hdr_buf to find the sequence that matches this frame */
18722 INIT_LIST_HEAD(&dmabuf->dbuf.list);
18723 INIT_LIST_HEAD(&dmabuf->hbuf.list);
18724 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18725 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
18726 temp_hdr = (struct fc_frame_header *)h_buf->virt;
18727 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
18728 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
18729 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
18731 /* found a pending sequence that matches this frame */
18732 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18736 /* Free up all the frames from the partially assembled sequence */
18738 list_for_each_entry_safe(d_buf, n_buf,
18739 &seq_dmabuf->dbuf.list, list) {
18740 list_del_init(&d_buf->list);
18741 lpfc_in_buf_free(vport->phba, d_buf);
18749 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
18750 * @vport: pointer to a vitural port
18751 * @dmabuf: pointer to a dmabuf that describes the FC sequence
18753 * This function tries to abort from the assembed sequence from upper level
18754 * protocol, described by the information from basic abbort @dmabuf. It
18755 * checks to see whether such pending context exists at upper level protocol.
18756 * If so, it shall clean up the pending context.
18759 * true -- if there is matching pending context of the sequence cleaned
18761 * false -- if there is no matching pending context of the sequence present
18765 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
18767 struct lpfc_hba *phba = vport->phba;
18770 /* Accepting abort at ulp with SLI4 only */
18771 if (phba->sli_rev < LPFC_SLI_REV4)
18774 /* Register all caring upper level protocols to attend abort */
18775 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
18783 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
18784 * @phba: Pointer to HBA context object.
18785 * @cmd_iocbq: pointer to the command iocbq structure.
18786 * @rsp_iocbq: pointer to the response iocbq structure.
18788 * This function handles the sequence abort response iocb command complete
18789 * event. It properly releases the memory allocated to the sequence abort
18793 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
18794 struct lpfc_iocbq *cmd_iocbq,
18795 struct lpfc_iocbq *rsp_iocbq)
18797 struct lpfc_nodelist *ndlp;
18800 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
18801 lpfc_nlp_put(ndlp);
18802 lpfc_sli_release_iocbq(phba, cmd_iocbq);
18805 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
18806 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
18807 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18808 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
18809 rsp_iocbq->iocb.ulpStatus,
18810 rsp_iocbq->iocb.un.ulpWord[4]);
18814 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
18815 * @phba: Pointer to HBA context object.
18816 * @xri: xri id in transaction.
18818 * This function validates the xri maps to the known range of XRIs allocated an
18819 * used by the driver.
18822 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
18827 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
18828 if (xri == phba->sli4_hba.xri_ids[i])
18835 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
18836 * @vport: pointer to a virtual port.
18837 * @fc_hdr: pointer to a FC frame header.
18838 * @aborted: was the partially assembled receive sequence successfully aborted
18840 * This function sends a basic response to a previous unsol sequence abort
18841 * event after aborting the sequence handling.
18844 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
18845 struct fc_frame_header *fc_hdr, bool aborted)
18847 struct lpfc_hba *phba = vport->phba;
18848 struct lpfc_iocbq *ctiocb = NULL;
18849 struct lpfc_nodelist *ndlp;
18850 uint16_t oxid, rxid, xri, lxri;
18851 uint32_t sid, fctl;
18855 if (!lpfc_is_link_up(phba))
18858 sid = sli4_sid_from_fc_hdr(fc_hdr);
18859 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
18860 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
18862 ndlp = lpfc_findnode_did(vport, sid);
18864 ndlp = lpfc_nlp_init(vport, sid);
18866 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
18867 "1268 Failed to allocate ndlp for "
18868 "oxid:x%x SID:x%x\n", oxid, sid);
18871 /* Put ndlp onto pport node list */
18872 lpfc_enqueue_node(vport, ndlp);
18875 /* Allocate buffer for rsp iocb */
18876 ctiocb = lpfc_sli_get_iocbq(phba);
18880 /* Extract the F_CTL field from FC_HDR */
18881 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
18883 icmd = &ctiocb->iocb;
18884 icmd->un.xseq64.bdl.bdeSize = 0;
18885 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
18886 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
18887 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
18888 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
18890 /* Fill in the rest of iocb fields */
18891 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
18892 icmd->ulpBdeCount = 0;
18894 icmd->ulpClass = CLASS3;
18895 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
18896 ctiocb->context1 = lpfc_nlp_get(ndlp);
18897 if (!ctiocb->context1) {
18898 lpfc_sli_release_iocbq(phba, ctiocb);
18902 ctiocb->vport = phba->pport;
18903 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
18904 ctiocb->sli4_lxritag = NO_XRI;
18905 ctiocb->sli4_xritag = NO_XRI;
18907 if (fctl & FC_FC_EX_CTX)
18908 /* Exchange responder sent the abort so we
18914 lxri = lpfc_sli4_xri_inrange(phba, xri);
18915 if (lxri != NO_XRI)
18916 lpfc_set_rrq_active(phba, ndlp, lxri,
18917 (xri == oxid) ? rxid : oxid, 0);
18918 /* For BA_ABTS from exchange responder, if the logical xri with
18919 * the oxid maps to the FCP XRI range, the port no longer has
18920 * that exchange context, send a BLS_RJT. Override the IOCB for
18923 if ((fctl & FC_FC_EX_CTX) &&
18924 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
18925 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
18926 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
18927 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
18928 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
18931 /* If BA_ABTS failed to abort a partially assembled receive sequence,
18932 * the driver no longer has that exchange, send a BLS_RJT. Override
18933 * the IOCB for a BA_RJT.
18935 if (aborted == false) {
18936 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
18937 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
18938 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
18939 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
18942 if (fctl & FC_FC_EX_CTX) {
18943 /* ABTS sent by responder to CT exchange, construction
18944 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
18945 * field and RX_ID from ABTS for RX_ID field.
18947 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
18949 /* ABTS sent by initiator to CT exchange, construction
18950 * of BA_ACC will need to allocate a new XRI as for the
18953 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
18955 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
18956 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
18958 /* Xmit CT abts response on exchange <xid> */
18959 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
18960 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
18961 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
18963 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
18964 if (rc == IOCB_ERROR) {
18965 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
18966 "2925 Failed to issue CT ABTS RSP x%x on "
18967 "xri x%x, Data x%x\n",
18968 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
18970 lpfc_nlp_put(ndlp);
18971 ctiocb->context1 = NULL;
18972 lpfc_sli_release_iocbq(phba, ctiocb);
18977 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
18978 * @vport: Pointer to the vport on which this sequence was received
18979 * @dmabuf: pointer to a dmabuf that describes the FC sequence
18981 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
18982 * receive sequence is only partially assembed by the driver, it shall abort
18983 * the partially assembled frames for the sequence. Otherwise, if the
18984 * unsolicited receive sequence has been completely assembled and passed to
18985 * the Upper Layer Protocol (ULP), it then mark the per oxid status for the
18986 * unsolicited sequence has been aborted. After that, it will issue a basic
18987 * accept to accept the abort.
18990 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
18991 struct hbq_dmabuf *dmabuf)
18993 struct lpfc_hba *phba = vport->phba;
18994 struct fc_frame_header fc_hdr;
18998 /* Make a copy of fc_hdr before the dmabuf being released */
18999 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
19000 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
19002 if (fctl & FC_FC_EX_CTX) {
19003 /* ABTS by responder to exchange, no cleanup needed */
19006 /* ABTS by initiator to exchange, need to do cleanup */
19007 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
19008 if (aborted == false)
19009 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
19011 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19013 if (phba->nvmet_support) {
19014 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
19018 /* Respond with BA_ACC or BA_RJT accordingly */
19019 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
19023 * lpfc_seq_complete - Indicates if a sequence is complete
19024 * @dmabuf: pointer to a dmabuf that describes the FC sequence
19026 * This function checks the sequence, starting with the frame described by
19027 * @dmabuf, to see if all the frames associated with this sequence are present.
19028 * the frames associated with this sequence are linked to the @dmabuf using the
19029 * dbuf list. This function looks for two major things. 1) That the first frame
19030 * has a sequence count of zero. 2) There is a frame with last frame of sequence
19031 * set. 3) That there are no holes in the sequence count. The function will
19032 * return 1 when the sequence is complete, otherwise it will return 0.
19035 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
19037 struct fc_frame_header *hdr;
19038 struct lpfc_dmabuf *d_buf;
19039 struct hbq_dmabuf *seq_dmabuf;
19043 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
19044 /* make sure first fame of sequence has a sequence count of zero */
19045 if (hdr->fh_seq_cnt != seq_count)
19047 fctl = (hdr->fh_f_ctl[0] << 16 |
19048 hdr->fh_f_ctl[1] << 8 |
19050 /* If last frame of sequence we can return success. */
19051 if (fctl & FC_FC_END_SEQ)
19053 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
19054 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
19055 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
19056 /* If there is a hole in the sequence count then fail. */
19057 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
19059 fctl = (hdr->fh_f_ctl[0] << 16 |
19060 hdr->fh_f_ctl[1] << 8 |
19062 /* If last frame of sequence we can return success. */
19063 if (fctl & FC_FC_END_SEQ)
19070 * lpfc_prep_seq - Prep sequence for ULP processing
19071 * @vport: Pointer to the vport on which this sequence was received
19072 * @seq_dmabuf: pointer to a dmabuf that describes the FC sequence
19074 * This function takes a sequence, described by a list of frames, and creates
19075 * a list of iocbq structures to describe the sequence. This iocbq list will be
19076 * used to issue to the generic unsolicited sequence handler. This routine
19077 * returns a pointer to the first iocbq in the list. If the function is unable
19078 * to allocate an iocbq then it throw out the received frames that were not
19079 * able to be described and return a pointer to the first iocbq. If unable to
19080 * allocate any iocbqs (including the first) this function will return NULL.
19082 static struct lpfc_iocbq *
19083 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
19085 struct hbq_dmabuf *hbq_buf;
19086 struct lpfc_dmabuf *d_buf, *n_buf;
19087 struct lpfc_iocbq *first_iocbq, *iocbq;
19088 struct fc_frame_header *fc_hdr;
19090 uint32_t len, tot_len;
19091 struct ulp_bde64 *pbde;
19093 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
19094 /* remove from receive buffer list */
19095 list_del_init(&seq_dmabuf->hbuf.list);
19096 lpfc_update_rcv_time_stamp(vport);
19097 /* get the Remote Port's SID */
19098 sid = sli4_sid_from_fc_hdr(fc_hdr);
19100 /* Get an iocbq struct to fill in. */
19101 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
19103 /* Initialize the first IOCB. */
19104 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
19105 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
19106 first_iocbq->vport = vport;
19108 /* Check FC Header to see what TYPE of frame we are rcv'ing */
19109 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
19110 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
19111 first_iocbq->iocb.un.rcvels.parmRo =
19112 sli4_did_from_fc_hdr(fc_hdr);
19113 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
19115 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
19116 first_iocbq->iocb.ulpContext = NO_XRI;
19117 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
19118 be16_to_cpu(fc_hdr->fh_ox_id);
19119 /* iocbq is prepped for internal consumption. Physical vpi. */
19120 first_iocbq->iocb.unsli3.rcvsli3.vpi =
19121 vport->phba->vpi_ids[vport->vpi];
19122 /* put the first buffer into the first IOCBq */
19123 tot_len = bf_get(lpfc_rcqe_length,
19124 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
19126 first_iocbq->context2 = &seq_dmabuf->dbuf;
19127 first_iocbq->context3 = NULL;
19128 first_iocbq->iocb.ulpBdeCount = 1;
19129 if (tot_len > LPFC_DATA_BUF_SIZE)
19130 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
19131 LPFC_DATA_BUF_SIZE;
19133 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
19135 first_iocbq->iocb.un.rcvels.remoteID = sid;
19137 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
19139 iocbq = first_iocbq;
19141 * Each IOCBq can have two Buffers assigned, so go through the list
19142 * of buffers for this sequence and save two buffers in each IOCBq
19144 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
19146 lpfc_in_buf_free(vport->phba, d_buf);
19149 if (!iocbq->context3) {
19150 iocbq->context3 = d_buf;
19151 iocbq->iocb.ulpBdeCount++;
19152 /* We need to get the size out of the right CQE */
19153 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
19154 len = bf_get(lpfc_rcqe_length,
19155 &hbq_buf->cq_event.cqe.rcqe_cmpl);
19156 pbde = (struct ulp_bde64 *)
19157 &iocbq->iocb.unsli3.sli3Words[4];
19158 if (len > LPFC_DATA_BUF_SIZE)
19159 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
19161 pbde->tus.f.bdeSize = len;
19163 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
19166 iocbq = lpfc_sli_get_iocbq(vport->phba);
19169 first_iocbq->iocb.ulpStatus =
19170 IOSTAT_FCP_RSP_ERROR;
19171 first_iocbq->iocb.un.ulpWord[4] =
19172 IOERR_NO_RESOURCES;
19174 lpfc_in_buf_free(vport->phba, d_buf);
19177 /* We need to get the size out of the right CQE */
19178 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
19179 len = bf_get(lpfc_rcqe_length,
19180 &hbq_buf->cq_event.cqe.rcqe_cmpl);
19181 iocbq->context2 = d_buf;
19182 iocbq->context3 = NULL;
19183 iocbq->iocb.ulpBdeCount = 1;
19184 if (len > LPFC_DATA_BUF_SIZE)
19185 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
19186 LPFC_DATA_BUF_SIZE;
19188 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
19191 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
19193 iocbq->iocb.un.rcvels.remoteID = sid;
19194 list_add_tail(&iocbq->list, &first_iocbq->list);
19197 /* Free the sequence's header buffer */
19199 lpfc_in_buf_free(vport->phba, &seq_dmabuf->dbuf);
19201 return first_iocbq;
19205 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
19206 struct hbq_dmabuf *seq_dmabuf)
19208 struct fc_frame_header *fc_hdr;
19209 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
19210 struct lpfc_hba *phba = vport->phba;
19212 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
19213 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
19215 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19216 "2707 Ring %d handler: Failed to allocate "
19217 "iocb Rctl x%x Type x%x received\n",
19219 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
19222 if (!lpfc_complete_unsol_iocb(phba,
19223 phba->sli4_hba.els_wq->pring,
19224 iocbq, fc_hdr->fh_r_ctl,
19226 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19227 "2540 Ring %d handler: unexpected Rctl "
19228 "x%x Type x%x received\n",
19230 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
19232 /* Free iocb created in lpfc_prep_seq */
19233 list_for_each_entry_safe(curr_iocb, next_iocb,
19234 &iocbq->list, list) {
19235 list_del_init(&curr_iocb->list);
19236 lpfc_sli_release_iocbq(phba, curr_iocb);
19238 lpfc_sli_release_iocbq(phba, iocbq);
19242 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
19243 struct lpfc_iocbq *rspiocb)
19245 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
19247 if (pcmd && pcmd->virt)
19248 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
19250 lpfc_sli_release_iocbq(phba, cmdiocb);
19251 lpfc_drain_txq(phba);
19255 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
19256 struct hbq_dmabuf *dmabuf)
19258 struct fc_frame_header *fc_hdr;
19259 struct lpfc_hba *phba = vport->phba;
19260 struct lpfc_iocbq *iocbq = NULL;
19261 union lpfc_wqe *wqe;
19262 struct lpfc_dmabuf *pcmd = NULL;
19263 uint32_t frame_len;
19265 unsigned long iflags;
19267 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
19268 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
19270 /* Send the received frame back */
19271 iocbq = lpfc_sli_get_iocbq(phba);
19273 /* Queue cq event and wakeup worker thread to process it */
19274 spin_lock_irqsave(&phba->hbalock, iflags);
19275 list_add_tail(&dmabuf->cq_event.list,
19276 &phba->sli4_hba.sp_queue_event);
19277 phba->hba_flag |= HBA_SP_QUEUE_EVT;
19278 spin_unlock_irqrestore(&phba->hbalock, iflags);
19279 lpfc_worker_wake_up(phba);
19283 /* Allocate buffer for command payload */
19284 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
19286 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
19288 if (!pcmd || !pcmd->virt)
19291 INIT_LIST_HEAD(&pcmd->list);
19293 /* copyin the payload */
19294 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
19296 /* fill in BDE's for command */
19297 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
19298 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
19299 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
19300 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
19302 iocbq->context2 = pcmd;
19303 iocbq->vport = vport;
19304 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
19305 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
19308 * Setup rest of the iocb as though it were a WQE
19309 * Build the SEND_FRAME WQE
19311 wqe = (union lpfc_wqe *)&iocbq->iocb;
19313 wqe->send_frame.frame_len = frame_len;
19314 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
19315 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
19316 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
19317 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
19318 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
19319 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
19321 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
19322 iocbq->iocb.ulpLe = 1;
19323 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
19324 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
19325 if (rc == IOCB_ERROR)
19328 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19332 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
19333 "2023 Unable to process MDS loopback frame\n");
19334 if (pcmd && pcmd->virt)
19335 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
19338 lpfc_sli_release_iocbq(phba, iocbq);
19339 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19343 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
19344 * @phba: Pointer to HBA context object.
19345 * @dmabuf: Pointer to a dmabuf that describes the FC sequence.
19347 * This function is called with no lock held. This function processes all
19348 * the received buffers and gives it to upper layers when a received buffer
19349 * indicates that it is the final frame in the sequence. The interrupt
19350 * service routine processes received buffers at interrupt contexts.
19351 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
19352 * appropriate receive function when the final frame in a sequence is received.
19355 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
19356 struct hbq_dmabuf *dmabuf)
19358 struct hbq_dmabuf *seq_dmabuf;
19359 struct fc_frame_header *fc_hdr;
19360 struct lpfc_vport *vport;
19364 /* Process each received buffer */
19365 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
19367 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
19368 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
19369 vport = phba->pport;
19370 /* Handle MDS Loopback frames */
19371 if (!(phba->pport->load_flag & FC_UNLOADING))
19372 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
19374 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19378 /* check to see if this a valid type of frame */
19379 if (lpfc_fc_frame_check(phba, fc_hdr)) {
19380 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19384 if ((bf_get(lpfc_cqe_code,
19385 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
19386 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
19387 &dmabuf->cq_event.cqe.rcqe_cmpl);
19389 fcfi = bf_get(lpfc_rcqe_fcf_id,
19390 &dmabuf->cq_event.cqe.rcqe_cmpl);
19392 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
19393 vport = phba->pport;
19394 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
19395 "2023 MDS Loopback %d bytes\n",
19396 bf_get(lpfc_rcqe_length,
19397 &dmabuf->cq_event.cqe.rcqe_cmpl));
19398 /* Handle MDS Loopback frames */
19399 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
19403 /* d_id this frame is directed to */
19404 did = sli4_did_from_fc_hdr(fc_hdr);
19406 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
19408 /* throw out the frame */
19409 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19413 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
19414 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
19415 (did != Fabric_DID)) {
19417 * Throw out the frame if we are not pt2pt.
19418 * The pt2pt protocol allows for discovery frames
19419 * to be received without a registered VPI.
19421 if (!(vport->fc_flag & FC_PT2PT) ||
19422 (phba->link_state == LPFC_HBA_READY)) {
19423 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19428 /* Handle the basic abort sequence (BA_ABTS) event */
19429 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
19430 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
19434 /* Link this frame */
19435 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
19437 /* unable to add frame to vport - throw it out */
19438 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19441 /* If not last frame in sequence continue processing frames. */
19442 if (!lpfc_seq_complete(seq_dmabuf))
19445 /* Send the complete sequence to the upper layer protocol */
19446 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
19450 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
19451 * @phba: pointer to lpfc hba data structure.
19453 * This routine is invoked to post rpi header templates to the
19454 * HBA consistent with the SLI-4 interface spec. This routine
19455 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
19456 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
19458 * This routine does not require any locks. It's usage is expected
19459 * to be driver load or reset recovery when the driver is
19464 * -EIO - The mailbox failed to complete successfully.
19465 * When this error occurs, the driver is not guaranteed
19466 * to have any rpi regions posted to the device and
19467 * must either attempt to repost the regions or take a
19471 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
19473 struct lpfc_rpi_hdr *rpi_page;
19477 /* SLI4 ports that support extents do not require RPI headers. */
19478 if (!phba->sli4_hba.rpi_hdrs_in_use)
19480 if (phba->sli4_hba.extents_in_use)
19483 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
19485 * Assign the rpi headers a physical rpi only if the driver
19486 * has not initialized those resources. A port reset only
19487 * needs the headers posted.
19489 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
19491 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
19493 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
19494 if (rc != MBX_SUCCESS) {
19495 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19496 "2008 Error %d posting all rpi "
19504 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
19505 LPFC_RPI_RSRC_RDY);
19510 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
19511 * @phba: pointer to lpfc hba data structure.
19512 * @rpi_page: pointer to the rpi memory region.
19514 * This routine is invoked to post a single rpi header to the
19515 * HBA consistent with the SLI-4 interface spec. This memory region
19516 * maps up to 64 rpi context regions.
19520 * -ENOMEM - No available memory
19521 * -EIO - The mailbox failed to complete successfully.
19524 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
19526 LPFC_MBOXQ_t *mboxq;
19527 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
19529 uint32_t shdr_status, shdr_add_status;
19530 union lpfc_sli4_cfg_shdr *shdr;
19532 /* SLI4 ports that support extents do not require RPI headers. */
19533 if (!phba->sli4_hba.rpi_hdrs_in_use)
19535 if (phba->sli4_hba.extents_in_use)
19538 /* The port is notified of the header region via a mailbox command. */
19539 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19541 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19542 "2001 Unable to allocate memory for issuing "
19543 "SLI_CONFIG_SPECIAL mailbox command\n");
19547 /* Post all rpi memory regions to the port. */
19548 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
19549 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
19550 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
19551 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
19552 sizeof(struct lpfc_sli4_cfg_mhdr),
19553 LPFC_SLI4_MBX_EMBED);
19556 /* Post the physical rpi to the port for this rpi header. */
19557 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
19558 rpi_page->start_rpi);
19559 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
19560 hdr_tmpl, rpi_page->page_count);
19562 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
19563 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
19564 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
19565 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
19566 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
19567 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
19568 mempool_free(mboxq, phba->mbox_mem_pool);
19569 if (shdr_status || shdr_add_status || rc) {
19570 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19571 "2514 POST_RPI_HDR mailbox failed with "
19572 "status x%x add_status x%x, mbx status x%x\n",
19573 shdr_status, shdr_add_status, rc);
19577 * The next_rpi stores the next logical module-64 rpi value used
19578 * to post physical rpis in subsequent rpi postings.
19580 spin_lock_irq(&phba->hbalock);
19581 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
19582 spin_unlock_irq(&phba->hbalock);
19588 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
19589 * @phba: pointer to lpfc hba data structure.
19591 * This routine is invoked to post rpi header templates to the
19592 * HBA consistent with the SLI-4 interface spec. This routine
19593 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
19594 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
19597 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
19598 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
19601 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
19604 uint16_t max_rpi, rpi_limit;
19605 uint16_t rpi_remaining, lrpi = 0;
19606 struct lpfc_rpi_hdr *rpi_hdr;
19607 unsigned long iflag;
19610 * Fetch the next logical rpi. Because this index is logical,
19611 * the driver starts at 0 each time.
19613 spin_lock_irqsave(&phba->hbalock, iflag);
19614 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
19615 rpi_limit = phba->sli4_hba.next_rpi;
19617 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
19618 if (rpi >= rpi_limit)
19619 rpi = LPFC_RPI_ALLOC_ERROR;
19621 set_bit(rpi, phba->sli4_hba.rpi_bmask);
19622 phba->sli4_hba.max_cfg_param.rpi_used++;
19623 phba->sli4_hba.rpi_count++;
19625 lpfc_printf_log(phba, KERN_INFO,
19626 LOG_NODE | LOG_DISCOVERY,
19627 "0001 Allocated rpi:x%x max:x%x lim:x%x\n",
19628 (int) rpi, max_rpi, rpi_limit);
19631 * Don't try to allocate more rpi header regions if the device limit
19632 * has been exhausted.
19634 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
19635 (phba->sli4_hba.rpi_count >= max_rpi)) {
19636 spin_unlock_irqrestore(&phba->hbalock, iflag);
19641 * RPI header postings are not required for SLI4 ports capable of
19644 if (!phba->sli4_hba.rpi_hdrs_in_use) {
19645 spin_unlock_irqrestore(&phba->hbalock, iflag);
19650 * If the driver is running low on rpi resources, allocate another
19651 * page now. Note that the next_rpi value is used because
19652 * it represents how many are actually in use whereas max_rpi notes
19653 * how many are supported max by the device.
19655 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
19656 spin_unlock_irqrestore(&phba->hbalock, iflag);
19657 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
19658 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
19660 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19661 "2002 Error Could not grow rpi "
19664 lrpi = rpi_hdr->start_rpi;
19665 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
19666 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
19674 * __lpfc_sli4_free_rpi - Release an rpi for reuse.
19675 * @phba: pointer to lpfc hba data structure.
19676 * @rpi: rpi to free
19678 * This routine is invoked to release an rpi to the pool of
19679 * available rpis maintained by the driver.
19682 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
19685 * if the rpi value indicates a prior unreg has already
19686 * been done, skip the unreg.
19688 if (rpi == LPFC_RPI_ALLOC_ERROR)
19691 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
19692 phba->sli4_hba.rpi_count--;
19693 phba->sli4_hba.max_cfg_param.rpi_used--;
19695 lpfc_printf_log(phba, KERN_INFO,
19696 LOG_NODE | LOG_DISCOVERY,
19697 "2016 rpi %x not inuse\n",
19703 * lpfc_sli4_free_rpi - Release an rpi for reuse.
19704 * @phba: pointer to lpfc hba data structure.
19705 * @rpi: rpi to free
19707 * This routine is invoked to release an rpi to the pool of
19708 * available rpis maintained by the driver.
19711 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
19713 spin_lock_irq(&phba->hbalock);
19714 __lpfc_sli4_free_rpi(phba, rpi);
19715 spin_unlock_irq(&phba->hbalock);
19719 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
19720 * @phba: pointer to lpfc hba data structure.
19722 * This routine is invoked to remove the memory region that
19723 * provided rpi via a bitmask.
19726 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
19728 kfree(phba->sli4_hba.rpi_bmask);
19729 kfree(phba->sli4_hba.rpi_ids);
19730 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
19734 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
19735 * @ndlp: pointer to lpfc nodelist data structure.
19736 * @cmpl: completion call-back.
19737 * @arg: data to load as MBox 'caller buffer information'
19739 * This routine is invoked to remove the memory region that
19740 * provided rpi via a bitmask.
19743 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
19744 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
19746 LPFC_MBOXQ_t *mboxq;
19747 struct lpfc_hba *phba = ndlp->phba;
19750 /* The port is notified of the header region via a mailbox command. */
19751 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19755 /* If cmpl assigned, then this nlp_get pairs with
19756 * lpfc_mbx_cmpl_resume_rpi.
19758 * Else cmpl is NULL, then this nlp_get pairs with
19759 * lpfc_sli_def_mbox_cmpl.
19761 if (!lpfc_nlp_get(ndlp)) {
19762 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19763 "2122 %s: Failed to get nlp ref\n",
19765 mempool_free(mboxq, phba->mbox_mem_pool);
19769 /* Post all rpi memory regions to the port. */
19770 lpfc_resume_rpi(mboxq, ndlp);
19772 mboxq->mbox_cmpl = cmpl;
19773 mboxq->ctx_buf = arg;
19775 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19776 mboxq->ctx_ndlp = ndlp;
19777 mboxq->vport = ndlp->vport;
19778 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
19779 if (rc == MBX_NOT_FINISHED) {
19780 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19781 "2010 Resume RPI Mailbox failed "
19782 "status %d, mbxStatus x%x\n", rc,
19783 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
19784 lpfc_nlp_put(ndlp);
19785 mempool_free(mboxq, phba->mbox_mem_pool);
19792 * lpfc_sli4_init_vpi - Initialize a vpi with the port
19793 * @vport: Pointer to the vport for which the vpi is being initialized
19795 * This routine is invoked to activate a vpi with the port.
19799 * -Evalue otherwise
19802 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
19804 LPFC_MBOXQ_t *mboxq;
19806 int retval = MBX_SUCCESS;
19808 struct lpfc_hba *phba = vport->phba;
19809 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19812 lpfc_init_vpi(phba, mboxq, vport->vpi);
19813 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
19814 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
19815 if (rc != MBX_SUCCESS) {
19816 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
19817 "2022 INIT VPI Mailbox failed "
19818 "status %d, mbxStatus x%x\n", rc,
19819 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
19822 if (rc != MBX_TIMEOUT)
19823 mempool_free(mboxq, vport->phba->mbox_mem_pool);
19829 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
19830 * @phba: pointer to lpfc hba data structure.
19831 * @mboxq: Pointer to mailbox object.
19833 * This routine is invoked to manually add a single FCF record. The caller
19834 * must pass a completely initialized FCF_Record. This routine takes
19835 * care of the nonembedded mailbox operations.
19838 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
19841 union lpfc_sli4_cfg_shdr *shdr;
19842 uint32_t shdr_status, shdr_add_status;
19844 virt_addr = mboxq->sge_array->addr[0];
19845 /* The IOCTL status is embedded in the mailbox subheader. */
19846 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
19847 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
19848 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
19850 if ((shdr_status || shdr_add_status) &&
19851 (shdr_status != STATUS_FCF_IN_USE))
19852 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19853 "2558 ADD_FCF_RECORD mailbox failed with "
19854 "status x%x add_status x%x\n",
19855 shdr_status, shdr_add_status);
19857 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19861 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
19862 * @phba: pointer to lpfc hba data structure.
19863 * @fcf_record: pointer to the initialized fcf record to add.
19865 * This routine is invoked to manually add a single FCF record. The caller
19866 * must pass a completely initialized FCF_Record. This routine takes
19867 * care of the nonembedded mailbox operations.
19870 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
19873 LPFC_MBOXQ_t *mboxq;
19876 struct lpfc_mbx_sge sge;
19877 uint32_t alloc_len, req_len;
19880 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19882 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19883 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
19887 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
19890 /* Allocate DMA memory and set up the non-embedded mailbox command */
19891 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
19892 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
19893 req_len, LPFC_SLI4_MBX_NEMBED);
19894 if (alloc_len < req_len) {
19895 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19896 "2523 Allocated DMA memory size (x%x) is "
19897 "less than the requested DMA memory "
19898 "size (x%x)\n", alloc_len, req_len);
19899 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19904 * Get the first SGE entry from the non-embedded DMA memory. This
19905 * routine only uses a single SGE.
19907 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
19908 virt_addr = mboxq->sge_array->addr[0];
19910 * Configure the FCF record for FCFI 0. This is the driver's
19911 * hardcoded default and gets used in nonFIP mode.
19913 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
19914 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
19915 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
19918 * Copy the fcf_index and the FCF Record Data. The data starts after
19919 * the FCoE header plus word10. The data copy needs to be endian
19922 bytep += sizeof(uint32_t);
19923 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
19924 mboxq->vport = phba->pport;
19925 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
19926 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
19927 if (rc == MBX_NOT_FINISHED) {
19928 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19929 "2515 ADD_FCF_RECORD mailbox failed with "
19930 "status 0x%x\n", rc);
19931 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19940 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
19941 * @phba: pointer to lpfc hba data structure.
19942 * @fcf_record: pointer to the fcf record to write the default data.
19943 * @fcf_index: FCF table entry index.
19945 * This routine is invoked to build the driver's default FCF record. The
19946 * values used are hardcoded. This routine handles memory initialization.
19950 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
19951 struct fcf_record *fcf_record,
19952 uint16_t fcf_index)
19954 memset(fcf_record, 0, sizeof(struct fcf_record));
19955 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
19956 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
19957 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
19958 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
19959 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
19960 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
19961 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
19962 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
19963 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
19964 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
19965 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
19966 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
19967 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
19968 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
19969 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
19970 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
19971 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
19972 /* Set the VLAN bit map */
19973 if (phba->valid_vlan) {
19974 fcf_record->vlan_bitmap[phba->vlan_id / 8]
19975 = 1 << (phba->vlan_id % 8);
19980 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
19981 * @phba: pointer to lpfc hba data structure.
19982 * @fcf_index: FCF table entry offset.
19984 * This routine is invoked to scan the entire FCF table by reading FCF
19985 * record and processing it one at a time starting from the @fcf_index
19986 * for initial FCF discovery or fast FCF failover rediscovery.
19988 * Return 0 if the mailbox command is submitted successfully, none 0
19992 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
19995 LPFC_MBOXQ_t *mboxq;
19997 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
19998 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
19999 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20001 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20002 "2000 Failed to allocate mbox for "
20005 goto fail_fcf_scan;
20007 /* Construct the read FCF record mailbox command */
20008 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
20011 goto fail_fcf_scan;
20013 /* Issue the mailbox command asynchronously */
20014 mboxq->vport = phba->pport;
20015 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
20017 spin_lock_irq(&phba->hbalock);
20018 phba->hba_flag |= FCF_TS_INPROG;
20019 spin_unlock_irq(&phba->hbalock);
20021 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
20022 if (rc == MBX_NOT_FINISHED)
20025 /* Reset eligible FCF count for new scan */
20026 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
20027 phba->fcf.eligible_fcf_cnt = 0;
20033 lpfc_sli4_mbox_cmd_free(phba, mboxq);
20034 /* FCF scan failed, clear FCF_TS_INPROG flag */
20035 spin_lock_irq(&phba->hbalock);
20036 phba->hba_flag &= ~FCF_TS_INPROG;
20037 spin_unlock_irq(&phba->hbalock);
20043 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
20044 * @phba: pointer to lpfc hba data structure.
20045 * @fcf_index: FCF table entry offset.
20047 * This routine is invoked to read an FCF record indicated by @fcf_index
20048 * and to use it for FLOGI roundrobin FCF failover.
20050 * Return 0 if the mailbox command is submitted successfully, none 0
20054 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
20057 LPFC_MBOXQ_t *mboxq;
20059 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20061 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
20062 "2763 Failed to allocate mbox for "
20065 goto fail_fcf_read;
20067 /* Construct the read FCF record mailbox command */
20068 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
20071 goto fail_fcf_read;
20073 /* Issue the mailbox command asynchronously */
20074 mboxq->vport = phba->pport;
20075 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
20076 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
20077 if (rc == MBX_NOT_FINISHED)
20083 if (error && mboxq)
20084 lpfc_sli4_mbox_cmd_free(phba, mboxq);
20089 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
20090 * @phba: pointer to lpfc hba data structure.
20091 * @fcf_index: FCF table entry offset.
20093 * This routine is invoked to read an FCF record indicated by @fcf_index to
20094 * determine whether it's eligible for FLOGI roundrobin failover list.
20096 * Return 0 if the mailbox command is submitted successfully, none 0
20100 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
20103 LPFC_MBOXQ_t *mboxq;
20105 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20107 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
20108 "2758 Failed to allocate mbox for "
20111 goto fail_fcf_read;
20113 /* Construct the read FCF record mailbox command */
20114 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
20117 goto fail_fcf_read;
20119 /* Issue the mailbox command asynchronously */
20120 mboxq->vport = phba->pport;
20121 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
20122 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
20123 if (rc == MBX_NOT_FINISHED)
20129 if (error && mboxq)
20130 lpfc_sli4_mbox_cmd_free(phba, mboxq);
20135 * lpfc_check_next_fcf_pri_level
20136 * @phba: pointer to the lpfc_hba struct for this port.
20137 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
20138 * routine when the rr_bmask is empty. The FCF indecies are put into the
20139 * rr_bmask based on their priority level. Starting from the highest priority
20140 * to the lowest. The most likely FCF candidate will be in the highest
20141 * priority group. When this routine is called it searches the fcf_pri list for
20142 * next lowest priority group and repopulates the rr_bmask with only those
20145 * 1=success 0=failure
20148 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
20150 uint16_t next_fcf_pri;
20151 uint16_t last_index;
20152 struct lpfc_fcf_pri *fcf_pri;
20156 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
20157 LPFC_SLI4_FCF_TBL_INDX_MAX);
20158 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20159 "3060 Last IDX %d\n", last_index);
20161 /* Verify the priority list has 2 or more entries */
20162 spin_lock_irq(&phba->hbalock);
20163 if (list_empty(&phba->fcf.fcf_pri_list) ||
20164 list_is_singular(&phba->fcf.fcf_pri_list)) {
20165 spin_unlock_irq(&phba->hbalock);
20166 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
20167 "3061 Last IDX %d\n", last_index);
20168 return 0; /* Empty rr list */
20170 spin_unlock_irq(&phba->hbalock);
20174 * Clear the rr_bmask and set all of the bits that are at this
20177 memset(phba->fcf.fcf_rr_bmask, 0,
20178 sizeof(*phba->fcf.fcf_rr_bmask));
20179 spin_lock_irq(&phba->hbalock);
20180 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
20181 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
20184 * the 1st priority that has not FLOGI failed
20185 * will be the highest.
20188 next_fcf_pri = fcf_pri->fcf_rec.priority;
20189 spin_unlock_irq(&phba->hbalock);
20190 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
20191 rc = lpfc_sli4_fcf_rr_index_set(phba,
20192 fcf_pri->fcf_rec.fcf_index);
20196 spin_lock_irq(&phba->hbalock);
20199 * if next_fcf_pri was not set above and the list is not empty then
20200 * we have failed flogis on all of them. So reset flogi failed
20201 * and start at the beginning.
20203 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
20204 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
20205 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
20207 * the 1st priority that has not FLOGI failed
20208 * will be the highest.
20211 next_fcf_pri = fcf_pri->fcf_rec.priority;
20212 spin_unlock_irq(&phba->hbalock);
20213 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
20214 rc = lpfc_sli4_fcf_rr_index_set(phba,
20215 fcf_pri->fcf_rec.fcf_index);
20219 spin_lock_irq(&phba->hbalock);
20223 spin_unlock_irq(&phba->hbalock);
20228 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
20229 * @phba: pointer to lpfc hba data structure.
20231 * This routine is to get the next eligible FCF record index in a round
20232 * robin fashion. If the next eligible FCF record index equals to the
20233 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
20234 * shall be returned, otherwise, the next eligible FCF record's index
20235 * shall be returned.
20238 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
20240 uint16_t next_fcf_index;
20243 /* Search start from next bit of currently registered FCF index */
20244 next_fcf_index = phba->fcf.current_rec.fcf_indx;
20247 /* Determine the next fcf index to check */
20248 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
20249 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
20250 LPFC_SLI4_FCF_TBL_INDX_MAX,
20253 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
20254 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
20256 * If we have wrapped then we need to clear the bits that
20257 * have been tested so that we can detect when we should
20258 * change the priority level.
20260 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
20261 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
20265 /* Check roundrobin failover list empty condition */
20266 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
20267 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
20269 * If next fcf index is not found check if there are lower
20270 * Priority level fcf's in the fcf_priority list.
20271 * Set up the rr_bmask with all of the avaiable fcf bits
20272 * at that level and continue the selection process.
20274 if (lpfc_check_next_fcf_pri_level(phba))
20275 goto initial_priority;
20276 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
20277 "2844 No roundrobin failover FCF available\n");
20279 return LPFC_FCOE_FCF_NEXT_NONE;
20282 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
20283 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
20284 LPFC_FCF_FLOGI_FAILED) {
20285 if (list_is_singular(&phba->fcf.fcf_pri_list))
20286 return LPFC_FCOE_FCF_NEXT_NONE;
20288 goto next_priority;
20291 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20292 "2845 Get next roundrobin failover FCF (x%x)\n",
20295 return next_fcf_index;
20299 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
20300 * @phba: pointer to lpfc hba data structure.
20301 * @fcf_index: index into the FCF table to 'set'
20303 * This routine sets the FCF record index in to the eligible bmask for
20304 * roundrobin failover search. It checks to make sure that the index
20305 * does not go beyond the range of the driver allocated bmask dimension
20306 * before setting the bit.
20308 * Returns 0 if the index bit successfully set, otherwise, it returns
20312 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
20314 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
20315 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
20316 "2610 FCF (x%x) reached driver's book "
20317 "keeping dimension:x%x\n",
20318 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
20321 /* Set the eligible FCF record index bmask */
20322 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
20324 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20325 "2790 Set FCF (x%x) to roundrobin FCF failover "
20326 "bmask\n", fcf_index);
20332 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
20333 * @phba: pointer to lpfc hba data structure.
20334 * @fcf_index: index into the FCF table to 'clear'
20336 * This routine clears the FCF record index from the eligible bmask for
20337 * roundrobin failover search. It checks to make sure that the index
20338 * does not go beyond the range of the driver allocated bmask dimension
20339 * before clearing the bit.
20342 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
20344 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
20345 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
20346 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
20347 "2762 FCF (x%x) reached driver's book "
20348 "keeping dimension:x%x\n",
20349 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
20352 /* Clear the eligible FCF record index bmask */
20353 spin_lock_irq(&phba->hbalock);
20354 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
20356 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
20357 list_del_init(&fcf_pri->list);
20361 spin_unlock_irq(&phba->hbalock);
20362 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
20364 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20365 "2791 Clear FCF (x%x) from roundrobin failover "
20366 "bmask\n", fcf_index);
20370 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
20371 * @phba: pointer to lpfc hba data structure.
20372 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
20374 * This routine is the completion routine for the rediscover FCF table mailbox
20375 * command. If the mailbox command returned failure, it will try to stop the
20376 * FCF rediscover wait timer.
20379 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
20381 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
20382 uint32_t shdr_status, shdr_add_status;
20384 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
20386 shdr_status = bf_get(lpfc_mbox_hdr_status,
20387 &redisc_fcf->header.cfg_shdr.response);
20388 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
20389 &redisc_fcf->header.cfg_shdr.response);
20390 if (shdr_status || shdr_add_status) {
20391 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
20392 "2746 Requesting for FCF rediscovery failed "
20393 "status x%x add_status x%x\n",
20394 shdr_status, shdr_add_status);
20395 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
20396 spin_lock_irq(&phba->hbalock);
20397 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
20398 spin_unlock_irq(&phba->hbalock);
20400 * CVL event triggered FCF rediscover request failed,
20401 * last resort to re-try current registered FCF entry.
20403 lpfc_retry_pport_discovery(phba);
20405 spin_lock_irq(&phba->hbalock);
20406 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
20407 spin_unlock_irq(&phba->hbalock);
20409 * DEAD FCF event triggered FCF rediscover request
20410 * failed, last resort to fail over as a link down
20411 * to FCF registration.
20413 lpfc_sli4_fcf_dead_failthrough(phba);
20416 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20417 "2775 Start FCF rediscover quiescent timer\n");
20419 * Start FCF rediscovery wait timer for pending FCF
20420 * before rescan FCF record table.
20422 lpfc_fcf_redisc_wait_start_timer(phba);
20425 mempool_free(mbox, phba->mbox_mem_pool);
20429 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
20430 * @phba: pointer to lpfc hba data structure.
20432 * This routine is invoked to request for rediscovery of the entire FCF table
20436 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
20438 LPFC_MBOXQ_t *mbox;
20439 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
20442 /* Cancel retry delay timers to all vports before FCF rediscover */
20443 lpfc_cancel_all_vport_retry_delay_timer(phba);
20445 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20447 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20448 "2745 Failed to allocate mbox for "
20449 "requesting FCF rediscover.\n");
20453 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
20454 sizeof(struct lpfc_sli4_cfg_mhdr));
20455 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
20456 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
20457 length, LPFC_SLI4_MBX_EMBED);
20459 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
20460 /* Set count to 0 for invalidating the entire FCF database */
20461 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
20463 /* Issue the mailbox command asynchronously */
20464 mbox->vport = phba->pport;
20465 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
20466 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
20468 if (rc == MBX_NOT_FINISHED) {
20469 mempool_free(mbox, phba->mbox_mem_pool);
20476 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
20477 * @phba: pointer to lpfc hba data structure.
20479 * This function is the failover routine as a last resort to the FCF DEAD
20480 * event when driver failed to perform fast FCF failover.
20483 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
20485 uint32_t link_state;
20488 * Last resort as FCF DEAD event failover will treat this as
20489 * a link down, but save the link state because we don't want
20490 * it to be changed to Link Down unless it is already down.
20492 link_state = phba->link_state;
20493 lpfc_linkdown(phba);
20494 phba->link_state = link_state;
20496 /* Unregister FCF if no devices connected to it */
20497 lpfc_unregister_unused_fcf(phba);
20501 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
20502 * @phba: pointer to lpfc hba data structure.
20503 * @rgn23_data: pointer to configure region 23 data.
20505 * This function gets SLI3 port configure region 23 data through memory dump
20506 * mailbox command. When it successfully retrieves data, the size of the data
20507 * will be returned, otherwise, 0 will be returned.
20510 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
20512 LPFC_MBOXQ_t *pmb = NULL;
20514 uint32_t offset = 0;
20520 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20522 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20523 "2600 failed to allocate mailbox memory\n");
20529 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
20530 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
20532 if (rc != MBX_SUCCESS) {
20533 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
20534 "2601 failed to read config "
20535 "region 23, rc 0x%x Status 0x%x\n",
20536 rc, mb->mbxStatus);
20537 mb->un.varDmp.word_cnt = 0;
20540 * dump mem may return a zero when finished or we got a
20541 * mailbox error, either way we are done.
20543 if (mb->un.varDmp.word_cnt == 0)
20546 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
20547 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
20549 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
20550 rgn23_data + offset,
20551 mb->un.varDmp.word_cnt);
20552 offset += mb->un.varDmp.word_cnt;
20553 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
20555 mempool_free(pmb, phba->mbox_mem_pool);
20560 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
20561 * @phba: pointer to lpfc hba data structure.
20562 * @rgn23_data: pointer to configure region 23 data.
20564 * This function gets SLI4 port configure region 23 data through memory dump
20565 * mailbox command. When it successfully retrieves data, the size of the data
20566 * will be returned, otherwise, 0 will be returned.
20569 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
20571 LPFC_MBOXQ_t *mboxq = NULL;
20572 struct lpfc_dmabuf *mp = NULL;
20573 struct lpfc_mqe *mqe;
20574 uint32_t data_length = 0;
20580 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20582 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20583 "3105 failed to allocate mailbox memory\n");
20587 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
20589 mqe = &mboxq->u.mqe;
20590 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
20591 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
20594 data_length = mqe->un.mb_words[5];
20595 if (data_length == 0)
20597 if (data_length > DMP_RGN23_SIZE) {
20601 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
20603 mempool_free(mboxq, phba->mbox_mem_pool);
20605 lpfc_mbuf_free(phba, mp->virt, mp->phys);
20608 return data_length;
20612 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
20613 * @phba: pointer to lpfc hba data structure.
20615 * This function read region 23 and parse TLV for port status to
20616 * decide if the user disaled the port. If the TLV indicates the
20617 * port is disabled, the hba_flag is set accordingly.
20620 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
20622 uint8_t *rgn23_data = NULL;
20623 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
20624 uint32_t offset = 0;
20626 /* Get adapter Region 23 data */
20627 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
20631 if (phba->sli_rev < LPFC_SLI_REV4)
20632 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
20634 if_type = bf_get(lpfc_sli_intf_if_type,
20635 &phba->sli4_hba.sli_intf);
20636 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
20638 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
20644 /* Check the region signature first */
20645 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
20646 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20647 "2619 Config region 23 has bad signature\n");
20652 /* Check the data structure version */
20653 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
20654 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20655 "2620 Config region 23 has bad version\n");
20660 /* Parse TLV entries in the region */
20661 while (offset < data_size) {
20662 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
20665 * If the TLV is not driver specific TLV or driver id is
20666 * not linux driver id, skip the record.
20668 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
20669 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
20670 (rgn23_data[offset + 3] != 0)) {
20671 offset += rgn23_data[offset + 1] * 4 + 4;
20675 /* Driver found a driver specific TLV in the config region */
20676 sub_tlv_len = rgn23_data[offset + 1] * 4;
20681 * Search for configured port state sub-TLV.
20683 while ((offset < data_size) &&
20684 (tlv_offset < sub_tlv_len)) {
20685 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
20690 if (rgn23_data[offset] != PORT_STE_TYPE) {
20691 offset += rgn23_data[offset + 1] * 4 + 4;
20692 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
20696 /* This HBA contains PORT_STE configured */
20697 if (!rgn23_data[offset + 2])
20698 phba->hba_flag |= LINK_DISABLED;
20710 * lpfc_log_fw_write_cmpl - logs firmware write completion status
20711 * @phba: pointer to lpfc hba data structure
20712 * @shdr_status: wr_object rsp's status field
20713 * @shdr_add_status: wr_object rsp's add_status field
20714 * @shdr_add_status_2: wr_object rsp's add_status_2 field
20715 * @shdr_change_status: wr_object rsp's change_status field
20716 * @shdr_csf: wr_object rsp's csf bit
20718 * This routine is intended to be called after a firmware write completes.
20719 * It will log next action items to be performed by the user to instantiate
20720 * the newly downloaded firmware or reason for incompatibility.
20723 lpfc_log_fw_write_cmpl(struct lpfc_hba *phba, u32 shdr_status,
20724 u32 shdr_add_status, u32 shdr_add_status_2,
20725 u32 shdr_change_status, u32 shdr_csf)
20727 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
20728 "4198 %s: flash_id x%02x, asic_rev x%02x, "
20729 "status x%02x, add_status x%02x, add_status_2 x%02x, "
20730 "change_status x%02x, csf %01x\n", __func__,
20731 phba->sli4_hba.flash_id, phba->sli4_hba.asic_rev,
20732 shdr_status, shdr_add_status, shdr_add_status_2,
20733 shdr_change_status, shdr_csf);
20735 if (shdr_add_status == LPFC_ADD_STATUS_INCOMPAT_OBJ) {
20736 switch (shdr_add_status_2) {
20737 case LPFC_ADD_STATUS_2_INCOMPAT_FLASH:
20738 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
20739 "4199 Firmware write failed: "
20740 "image incompatible with flash x%02x\n",
20741 phba->sli4_hba.flash_id);
20743 case LPFC_ADD_STATUS_2_INCORRECT_ASIC:
20744 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
20745 "4200 Firmware write failed: "
20746 "image incompatible with ASIC "
20747 "architecture x%02x\n",
20748 phba->sli4_hba.asic_rev);
20751 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
20752 "4210 Firmware write failed: "
20753 "add_status_2 x%02x\n",
20754 shdr_add_status_2);
20757 } else if (!shdr_status && !shdr_add_status) {
20758 if (shdr_change_status == LPFC_CHANGE_STATUS_FW_RESET ||
20759 shdr_change_status == LPFC_CHANGE_STATUS_PORT_MIGRATION) {
20761 shdr_change_status =
20762 LPFC_CHANGE_STATUS_PCI_RESET;
20765 switch (shdr_change_status) {
20766 case (LPFC_CHANGE_STATUS_PHYS_DEV_RESET):
20767 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
20768 "3198 Firmware write complete: System "
20769 "reboot required to instantiate\n");
20771 case (LPFC_CHANGE_STATUS_FW_RESET):
20772 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
20773 "3199 Firmware write complete: "
20774 "Firmware reset required to "
20777 case (LPFC_CHANGE_STATUS_PORT_MIGRATION):
20778 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
20779 "3200 Firmware write complete: Port "
20780 "Migration or PCI Reset required to "
20783 case (LPFC_CHANGE_STATUS_PCI_RESET):
20784 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
20785 "3201 Firmware write complete: PCI "
20786 "Reset required to instantiate\n");
20795 * lpfc_wr_object - write an object to the firmware
20796 * @phba: HBA structure that indicates port to create a queue on.
20797 * @dmabuf_list: list of dmabufs to write to the port.
20798 * @size: the total byte value of the objects to write to the port.
20799 * @offset: the current offset to be used to start the transfer.
20801 * This routine will create a wr_object mailbox command to send to the port.
20802 * the mailbox command will be constructed using the dma buffers described in
20803 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
20804 * BDEs that the imbedded mailbox can support. The @offset variable will be
20805 * used to indicate the starting offset of the transfer and will also return
20806 * the offset after the write object mailbox has completed. @size is used to
20807 * determine the end of the object and whether the eof bit should be set.
20809 * Return 0 is successful and offset will contain the the new offset to use
20810 * for the next write.
20811 * Return negative value for error cases.
20814 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
20815 uint32_t size, uint32_t *offset)
20817 struct lpfc_mbx_wr_object *wr_object;
20818 LPFC_MBOXQ_t *mbox;
20820 uint32_t shdr_status, shdr_add_status, shdr_add_status_2;
20821 uint32_t shdr_change_status = 0, shdr_csf = 0;
20823 struct lpfc_dmabuf *dmabuf;
20824 uint32_t written = 0;
20825 bool check_change_status = false;
20827 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20831 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
20832 LPFC_MBOX_OPCODE_WRITE_OBJECT,
20833 sizeof(struct lpfc_mbx_wr_object) -
20834 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
20836 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
20837 wr_object->u.request.write_offset = *offset;
20838 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
20839 wr_object->u.request.object_name[0] =
20840 cpu_to_le32(wr_object->u.request.object_name[0]);
20841 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
20842 list_for_each_entry(dmabuf, dmabuf_list, list) {
20843 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
20845 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
20846 wr_object->u.request.bde[i].addrHigh =
20847 putPaddrHigh(dmabuf->phys);
20848 if (written + SLI4_PAGE_SIZE >= size) {
20849 wr_object->u.request.bde[i].tus.f.bdeSize =
20851 written += (size - written);
20852 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
20853 bf_set(lpfc_wr_object_eas, &wr_object->u.request, 1);
20854 check_change_status = true;
20856 wr_object->u.request.bde[i].tus.f.bdeSize =
20858 written += SLI4_PAGE_SIZE;
20862 wr_object->u.request.bde_count = i;
20863 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
20864 if (!phba->sli4_hba.intr_enable)
20865 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
20867 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
20868 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
20870 /* The IOCTL status is embedded in the mailbox subheader. */
20871 shdr_status = bf_get(lpfc_mbox_hdr_status,
20872 &wr_object->header.cfg_shdr.response);
20873 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
20874 &wr_object->header.cfg_shdr.response);
20875 shdr_add_status_2 = bf_get(lpfc_mbox_hdr_add_status_2,
20876 &wr_object->header.cfg_shdr.response);
20877 if (check_change_status) {
20878 shdr_change_status = bf_get(lpfc_wr_object_change_status,
20879 &wr_object->u.response);
20880 shdr_csf = bf_get(lpfc_wr_object_csf,
20881 &wr_object->u.response);
20884 if (!phba->sli4_hba.intr_enable)
20885 mempool_free(mbox, phba->mbox_mem_pool);
20886 else if (rc != MBX_TIMEOUT)
20887 mempool_free(mbox, phba->mbox_mem_pool);
20888 if (shdr_status || shdr_add_status || shdr_add_status_2 || rc) {
20889 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20890 "3025 Write Object mailbox failed with "
20891 "status x%x add_status x%x, add_status_2 x%x, "
20892 "mbx status x%x\n",
20893 shdr_status, shdr_add_status, shdr_add_status_2,
20896 *offset = shdr_add_status;
20898 *offset += wr_object->u.response.actual_write_length;
20901 if (rc || check_change_status)
20902 lpfc_log_fw_write_cmpl(phba, shdr_status, shdr_add_status,
20903 shdr_add_status_2, shdr_change_status,
20909 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
20910 * @vport: pointer to vport data structure.
20912 * This function iterate through the mailboxq and clean up all REG_LOGIN
20913 * and REG_VPI mailbox commands associated with the vport. This function
20914 * is called when driver want to restart discovery of the vport due to
20915 * a Clear Virtual Link event.
20918 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
20920 struct lpfc_hba *phba = vport->phba;
20921 LPFC_MBOXQ_t *mb, *nextmb;
20922 struct lpfc_dmabuf *mp;
20923 struct lpfc_nodelist *ndlp;
20924 struct lpfc_nodelist *act_mbx_ndlp = NULL;
20925 LIST_HEAD(mbox_cmd_list);
20926 uint8_t restart_loop;
20928 /* Clean up internally queued mailbox commands with the vport */
20929 spin_lock_irq(&phba->hbalock);
20930 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
20931 if (mb->vport != vport)
20934 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
20935 (mb->u.mb.mbxCommand != MBX_REG_VPI))
20938 list_move_tail(&mb->list, &mbox_cmd_list);
20940 /* Clean up active mailbox command with the vport */
20941 mb = phba->sli.mbox_active;
20942 if (mb && (mb->vport == vport)) {
20943 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
20944 (mb->u.mb.mbxCommand == MBX_REG_VPI))
20945 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
20946 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
20947 act_mbx_ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
20948 /* Put reference count for delayed processing */
20949 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
20950 /* Unregister the RPI when mailbox complete */
20951 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
20954 /* Cleanup any mailbox completions which are not yet processed */
20957 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
20959 * If this mailox is already processed or it is
20960 * for another vport ignore it.
20962 if ((mb->vport != vport) ||
20963 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
20966 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
20967 (mb->u.mb.mbxCommand != MBX_REG_VPI))
20970 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
20971 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
20972 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
20973 /* Unregister the RPI when mailbox complete */
20974 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
20976 spin_unlock_irq(&phba->hbalock);
20977 spin_lock(&ndlp->lock);
20978 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
20979 spin_unlock(&ndlp->lock);
20980 spin_lock_irq(&phba->hbalock);
20984 } while (restart_loop);
20986 spin_unlock_irq(&phba->hbalock);
20988 /* Release the cleaned-up mailbox commands */
20989 while (!list_empty(&mbox_cmd_list)) {
20990 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
20991 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
20992 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
20994 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
20997 mb->ctx_buf = NULL;
20998 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
20999 mb->ctx_ndlp = NULL;
21001 spin_lock(&ndlp->lock);
21002 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
21003 spin_unlock(&ndlp->lock);
21004 lpfc_nlp_put(ndlp);
21007 mempool_free(mb, phba->mbox_mem_pool);
21010 /* Release the ndlp with the cleaned-up active mailbox command */
21011 if (act_mbx_ndlp) {
21012 spin_lock(&act_mbx_ndlp->lock);
21013 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
21014 spin_unlock(&act_mbx_ndlp->lock);
21015 lpfc_nlp_put(act_mbx_ndlp);
21020 * lpfc_drain_txq - Drain the txq
21021 * @phba: Pointer to HBA context object.
21023 * This function attempt to submit IOCBs on the txq
21024 * to the adapter. For SLI4 adapters, the txq contains
21025 * ELS IOCBs that have been deferred because the there
21026 * are no SGLs. This congestion can occur with large
21027 * vport counts during node discovery.
21031 lpfc_drain_txq(struct lpfc_hba *phba)
21033 LIST_HEAD(completions);
21034 struct lpfc_sli_ring *pring;
21035 struct lpfc_iocbq *piocbq = NULL;
21036 unsigned long iflags = 0;
21037 char *fail_msg = NULL;
21038 struct lpfc_sglq *sglq;
21039 union lpfc_wqe128 wqe;
21040 uint32_t txq_cnt = 0;
21041 struct lpfc_queue *wq;
21043 if (phba->link_flag & LS_MDS_LOOPBACK) {
21044 /* MDS WQE are posted only to first WQ*/
21045 wq = phba->sli4_hba.hdwq[0].io_wq;
21050 wq = phba->sli4_hba.els_wq;
21053 pring = lpfc_phba_elsring(phba);
21056 if (unlikely(!pring) || list_empty(&pring->txq))
21059 spin_lock_irqsave(&pring->ring_lock, iflags);
21060 list_for_each_entry(piocbq, &pring->txq, list) {
21064 if (txq_cnt > pring->txq_max)
21065 pring->txq_max = txq_cnt;
21067 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21069 while (!list_empty(&pring->txq)) {
21070 spin_lock_irqsave(&pring->ring_lock, iflags);
21072 piocbq = lpfc_sli_ringtx_get(phba, pring);
21074 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21075 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
21076 "2823 txq empty and txq_cnt is %d\n ",
21080 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
21082 __lpfc_sli_ringtx_put(phba, pring, piocbq);
21083 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21088 /* The xri and iocb resources secured,
21089 * attempt to issue request
21091 piocbq->sli4_lxritag = sglq->sli4_lxritag;
21092 piocbq->sli4_xritag = sglq->sli4_xritag;
21093 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
21094 fail_msg = "to convert bpl to sgl";
21095 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
21096 fail_msg = "to convert iocb to wqe";
21097 else if (lpfc_sli4_wq_put(wq, &wqe))
21098 fail_msg = " - Wq is full";
21100 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
21103 /* Failed means we can't issue and need to cancel */
21104 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
21105 "2822 IOCB failed %s iotag 0x%x "
21108 piocbq->iotag, piocbq->sli4_xritag);
21109 list_add_tail(&piocbq->list, &completions);
21111 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21114 /* Cancel all the IOCBs that cannot be issued */
21115 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
21116 IOERR_SLI_ABORTED);
21122 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
21123 * @phba: Pointer to HBA context object.
21124 * @pwqeq: Pointer to command WQE.
21125 * @sglq: Pointer to the scatter gather queue object.
21127 * This routine converts the bpl or bde that is in the WQE
21128 * to a sgl list for the sli4 hardware. The physical address
21129 * of the bpl/bde is converted back to a virtual address.
21130 * If the WQE contains a BPL then the list of BDE's is
21131 * converted to sli4_sge's. If the WQE contains a single
21132 * BDE then it is converted to a single sli_sge.
21133 * The WQE is still in cpu endianness so the contents of
21134 * the bpl can be used without byte swapping.
21136 * Returns valid XRI = Success, NO_XRI = Failure.
21139 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
21140 struct lpfc_sglq *sglq)
21142 uint16_t xritag = NO_XRI;
21143 struct ulp_bde64 *bpl = NULL;
21144 struct ulp_bde64 bde;
21145 struct sli4_sge *sgl = NULL;
21146 struct lpfc_dmabuf *dmabuf;
21147 union lpfc_wqe128 *wqe;
21150 uint32_t offset = 0; /* accumulated offset in the sg request list */
21151 int inbound = 0; /* number of sg reply entries inbound from firmware */
21154 if (!pwqeq || !sglq)
21157 sgl = (struct sli4_sge *)sglq->sgl;
21159 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
21161 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
21162 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
21163 return sglq->sli4_xritag;
21164 numBdes = pwqeq->rsvd2;
21166 /* The addrHigh and addrLow fields within the WQE
21167 * have not been byteswapped yet so there is no
21168 * need to swap them back.
21170 if (pwqeq->context3)
21171 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
21175 bpl = (struct ulp_bde64 *)dmabuf->virt;
21179 for (i = 0; i < numBdes; i++) {
21180 /* Should already be byte swapped. */
21181 sgl->addr_hi = bpl->addrHigh;
21182 sgl->addr_lo = bpl->addrLow;
21184 sgl->word2 = le32_to_cpu(sgl->word2);
21185 if ((i+1) == numBdes)
21186 bf_set(lpfc_sli4_sge_last, sgl, 1);
21188 bf_set(lpfc_sli4_sge_last, sgl, 0);
21189 /* swap the size field back to the cpu so we
21190 * can assign it to the sgl.
21192 bde.tus.w = le32_to_cpu(bpl->tus.w);
21193 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
21194 /* The offsets in the sgl need to be accumulated
21195 * separately for the request and reply lists.
21196 * The request is always first, the reply follows.
21199 case CMD_GEN_REQUEST64_WQE:
21200 /* add up the reply sg entries */
21201 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
21203 /* first inbound? reset the offset */
21206 bf_set(lpfc_sli4_sge_offset, sgl, offset);
21207 bf_set(lpfc_sli4_sge_type, sgl,
21208 LPFC_SGE_TYPE_DATA);
21209 offset += bde.tus.f.bdeSize;
21211 case CMD_FCP_TRSP64_WQE:
21212 bf_set(lpfc_sli4_sge_offset, sgl, 0);
21213 bf_set(lpfc_sli4_sge_type, sgl,
21214 LPFC_SGE_TYPE_DATA);
21216 case CMD_FCP_TSEND64_WQE:
21217 case CMD_FCP_TRECEIVE64_WQE:
21218 bf_set(lpfc_sli4_sge_type, sgl,
21219 bpl->tus.f.bdeFlags);
21223 offset += bde.tus.f.bdeSize;
21224 bf_set(lpfc_sli4_sge_offset, sgl, offset);
21227 sgl->word2 = cpu_to_le32(sgl->word2);
21231 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
21232 /* The addrHigh and addrLow fields of the BDE have not
21233 * been byteswapped yet so they need to be swapped
21234 * before putting them in the sgl.
21236 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
21237 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
21238 sgl->word2 = le32_to_cpu(sgl->word2);
21239 bf_set(lpfc_sli4_sge_last, sgl, 1);
21240 sgl->word2 = cpu_to_le32(sgl->word2);
21241 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
21243 return sglq->sli4_xritag;
21247 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
21248 * @phba: Pointer to HBA context object.
21249 * @qp: Pointer to HDW queue.
21250 * @pwqe: Pointer to command WQE.
21253 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
21254 struct lpfc_iocbq *pwqe)
21256 union lpfc_wqe128 *wqe = &pwqe->wqe;
21257 struct lpfc_async_xchg_ctx *ctxp;
21258 struct lpfc_queue *wq;
21259 struct lpfc_sglq *sglq;
21260 struct lpfc_sli_ring *pring;
21261 unsigned long iflags;
21264 /* NVME_LS and NVME_LS ABTS requests. */
21265 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
21266 pring = phba->sli4_hba.nvmels_wq->pring;
21267 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
21269 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
21271 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21274 pwqe->sli4_lxritag = sglq->sli4_lxritag;
21275 pwqe->sli4_xritag = sglq->sli4_xritag;
21276 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
21277 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21280 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
21281 pwqe->sli4_xritag);
21282 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
21284 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21288 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
21289 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21291 lpfc_sli4_poll_eq(qp->hba_eq, LPFC_POLL_FASTPATH);
21295 /* NVME_FCREQ and NVME_ABTS requests */
21296 if (pwqe->iocb_flag & (LPFC_IO_NVME | LPFC_IO_FCP | LPFC_IO_CMF)) {
21297 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
21301 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
21303 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
21305 ret = lpfc_sli4_wq_put(wq, wqe);
21307 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21310 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
21311 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21313 lpfc_sli4_poll_eq(qp->hba_eq, LPFC_POLL_FASTPATH);
21317 /* NVMET requests */
21318 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
21319 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
21323 ctxp = pwqe->context2;
21324 sglq = ctxp->ctxbuf->sglq;
21325 if (pwqe->sli4_xritag == NO_XRI) {
21326 pwqe->sli4_lxritag = sglq->sli4_lxritag;
21327 pwqe->sli4_xritag = sglq->sli4_xritag;
21329 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
21330 pwqe->sli4_xritag);
21331 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
21333 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
21335 ret = lpfc_sli4_wq_put(wq, wqe);
21337 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21340 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
21341 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21343 lpfc_sli4_poll_eq(qp->hba_eq, LPFC_POLL_FASTPATH);
21350 * lpfc_sli4_issue_abort_iotag - SLI-4 WQE init & issue for the Abort
21351 * @phba: Pointer to HBA context object.
21352 * @cmdiocb: Pointer to driver command iocb object.
21353 * @cmpl: completion function.
21355 * Fill the appropriate fields for the abort WQE and call
21356 * internal routine lpfc_sli4_issue_wqe to send the WQE
21357 * This function is called with hbalock held and no ring_lock held.
21359 * RETURNS 0 - SUCCESS
21363 lpfc_sli4_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
21366 struct lpfc_vport *vport = cmdiocb->vport;
21367 struct lpfc_iocbq *abtsiocb = NULL;
21368 union lpfc_wqe128 *abtswqe;
21369 struct lpfc_io_buf *lpfc_cmd;
21370 int retval = IOCB_ERROR;
21371 u16 xritag = cmdiocb->sli4_xritag;
21374 * The scsi command can not be in txq and it is in flight because the
21375 * pCmd is still pointing at the SCSI command we have to abort. There
21376 * is no need to search the txcmplq. Just send an abort to the FW.
21379 abtsiocb = __lpfc_sli_get_iocbq(phba);
21381 return WQE_NORESOURCE;
21383 /* Indicate the IO is being aborted by the driver. */
21384 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
21386 abtswqe = &abtsiocb->wqe;
21387 memset(abtswqe, 0, sizeof(*abtswqe));
21389 if (!lpfc_is_link_up(phba))
21390 bf_set(abort_cmd_ia, &abtswqe->abort_cmd, 1);
21391 bf_set(abort_cmd_criteria, &abtswqe->abort_cmd, T_XRI_TAG);
21392 abtswqe->abort_cmd.rsrvd5 = 0;
21393 abtswqe->abort_cmd.wqe_com.abort_tag = xritag;
21394 bf_set(wqe_reqtag, &abtswqe->abort_cmd.wqe_com, abtsiocb->iotag);
21395 bf_set(wqe_cmnd, &abtswqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
21396 bf_set(wqe_xri_tag, &abtswqe->generic.wqe_com, 0);
21397 bf_set(wqe_qosd, &abtswqe->abort_cmd.wqe_com, 1);
21398 bf_set(wqe_lenloc, &abtswqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
21399 bf_set(wqe_cmd_type, &abtswqe->abort_cmd.wqe_com, OTHER_COMMAND);
21401 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
21402 abtsiocb->hba_wqidx = cmdiocb->hba_wqidx;
21403 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
21404 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
21405 abtsiocb->iocb_flag |= LPFC_IO_FCP;
21406 if (cmdiocb->iocb_flag & LPFC_IO_NVME)
21407 abtsiocb->iocb_flag |= LPFC_IO_NVME;
21408 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
21409 abtsiocb->iocb_flag |= LPFC_IO_FOF;
21410 abtsiocb->vport = vport;
21411 abtsiocb->wqe_cmpl = cmpl;
21413 lpfc_cmd = container_of(cmdiocb, struct lpfc_io_buf, cur_iocbq);
21414 retval = lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, abtsiocb);
21416 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
21417 "0359 Abort xri x%x, original iotag x%x, "
21418 "abort cmd iotag x%x retval x%x\n",
21419 xritag, cmdiocb->iotag, abtsiocb->iotag, retval);
21422 cmdiocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
21423 __lpfc_sli_release_iocbq(phba, abtsiocb);
21429 #ifdef LPFC_MXP_STAT
21431 * lpfc_snapshot_mxp - Snapshot pbl, pvt and busy count
21432 * @phba: pointer to lpfc hba data structure.
21433 * @hwqid: belong to which HWQ.
21435 * The purpose of this routine is to take a snapshot of pbl, pvt and busy count
21436 * 15 seconds after a test case is running.
21438 * The user should call lpfc_debugfs_multixripools_write before running a test
21439 * case to clear stat_snapshot_taken. Then the user starts a test case. During
21440 * test case is running, stat_snapshot_taken is incremented by 1 every time when
21441 * this routine is called from heartbeat timer. When stat_snapshot_taken is
21442 * equal to LPFC_MXP_SNAPSHOT_TAKEN, a snapshot is taken.
21444 void lpfc_snapshot_mxp(struct lpfc_hba *phba, u32 hwqid)
21446 struct lpfc_sli4_hdw_queue *qp;
21447 struct lpfc_multixri_pool *multixri_pool;
21448 struct lpfc_pvt_pool *pvt_pool;
21449 struct lpfc_pbl_pool *pbl_pool;
21452 qp = &phba->sli4_hba.hdwq[hwqid];
21453 multixri_pool = qp->p_multixri_pool;
21454 if (!multixri_pool)
21457 if (multixri_pool->stat_snapshot_taken == LPFC_MXP_SNAPSHOT_TAKEN) {
21458 pvt_pool = &qp->p_multixri_pool->pvt_pool;
21459 pbl_pool = &qp->p_multixri_pool->pbl_pool;
21460 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
21462 multixri_pool->stat_pbl_count = pbl_pool->count;
21463 multixri_pool->stat_pvt_count = pvt_pool->count;
21464 multixri_pool->stat_busy_count = txcmplq_cnt;
21467 multixri_pool->stat_snapshot_taken++;
21472 * lpfc_adjust_pvt_pool_count - Adjust private pool count
21473 * @phba: pointer to lpfc hba data structure.
21474 * @hwqid: belong to which HWQ.
21476 * This routine moves some XRIs from private to public pool when private pool
21479 void lpfc_adjust_pvt_pool_count(struct lpfc_hba *phba, u32 hwqid)
21481 struct lpfc_multixri_pool *multixri_pool;
21483 u32 prev_io_req_count;
21485 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
21486 if (!multixri_pool)
21488 io_req_count = multixri_pool->io_req_count;
21489 prev_io_req_count = multixri_pool->prev_io_req_count;
21491 if (prev_io_req_count != io_req_count) {
21492 /* Private pool is busy */
21493 multixri_pool->prev_io_req_count = io_req_count;
21495 /* Private pool is not busy.
21496 * Move XRIs from private to public pool.
21498 lpfc_move_xri_pvt_to_pbl(phba, hwqid);
21503 * lpfc_adjust_high_watermark - Adjust high watermark
21504 * @phba: pointer to lpfc hba data structure.
21505 * @hwqid: belong to which HWQ.
21507 * This routine sets high watermark as number of outstanding XRIs,
21508 * but make sure the new value is between xri_limit/2 and xri_limit.
21510 void lpfc_adjust_high_watermark(struct lpfc_hba *phba, u32 hwqid)
21518 struct lpfc_multixri_pool *multixri_pool;
21519 struct lpfc_sli4_hdw_queue *qp;
21521 qp = &phba->sli4_hba.hdwq[hwqid];
21522 multixri_pool = qp->p_multixri_pool;
21523 if (!multixri_pool)
21525 xri_limit = multixri_pool->xri_limit;
21527 watermark_max = xri_limit;
21528 watermark_min = xri_limit / 2;
21530 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
21531 abts_io_bufs = qp->abts_scsi_io_bufs;
21532 abts_io_bufs += qp->abts_nvme_io_bufs;
21534 new_watermark = txcmplq_cnt + abts_io_bufs;
21535 new_watermark = min(watermark_max, new_watermark);
21536 new_watermark = max(watermark_min, new_watermark);
21537 multixri_pool->pvt_pool.high_watermark = new_watermark;
21539 #ifdef LPFC_MXP_STAT
21540 multixri_pool->stat_max_hwm = max(multixri_pool->stat_max_hwm,
21546 * lpfc_move_xri_pvt_to_pbl - Move some XRIs from private to public pool
21547 * @phba: pointer to lpfc hba data structure.
21548 * @hwqid: belong to which HWQ.
21550 * This routine is called from hearbeat timer when pvt_pool is idle.
21551 * All free XRIs are moved from private to public pool on hwqid with 2 steps.
21552 * The first step moves (all - low_watermark) amount of XRIs.
21553 * The second step moves the rest of XRIs.
21555 void lpfc_move_xri_pvt_to_pbl(struct lpfc_hba *phba, u32 hwqid)
21557 struct lpfc_pbl_pool *pbl_pool;
21558 struct lpfc_pvt_pool *pvt_pool;
21559 struct lpfc_sli4_hdw_queue *qp;
21560 struct lpfc_io_buf *lpfc_ncmd;
21561 struct lpfc_io_buf *lpfc_ncmd_next;
21562 unsigned long iflag;
21563 struct list_head tmp_list;
21566 qp = &phba->sli4_hba.hdwq[hwqid];
21567 pbl_pool = &qp->p_multixri_pool->pbl_pool;
21568 pvt_pool = &qp->p_multixri_pool->pvt_pool;
21571 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag, qp, mv_to_pub_pool);
21572 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_from_pvt_pool);
21574 if (pvt_pool->count > pvt_pool->low_watermark) {
21575 /* Step 1: move (all - low_watermark) from pvt_pool
21579 /* Move low watermark of bufs from pvt_pool to tmp_list */
21580 INIT_LIST_HEAD(&tmp_list);
21581 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
21582 &pvt_pool->list, list) {
21583 list_move_tail(&lpfc_ncmd->list, &tmp_list);
21585 if (tmp_count >= pvt_pool->low_watermark)
21589 /* Move all bufs from pvt_pool to pbl_pool */
21590 list_splice_init(&pvt_pool->list, &pbl_pool->list);
21592 /* Move all bufs from tmp_list to pvt_pool */
21593 list_splice(&tmp_list, &pvt_pool->list);
21595 pbl_pool->count += (pvt_pool->count - tmp_count);
21596 pvt_pool->count = tmp_count;
21598 /* Step 2: move the rest from pvt_pool to pbl_pool */
21599 list_splice_init(&pvt_pool->list, &pbl_pool->list);
21600 pbl_pool->count += pvt_pool->count;
21601 pvt_pool->count = 0;
21604 spin_unlock(&pvt_pool->lock);
21605 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
21609 * _lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
21610 * @phba: pointer to lpfc hba data structure
21611 * @qp: pointer to HDW queue
21612 * @pbl_pool: specified public free XRI pool
21613 * @pvt_pool: specified private free XRI pool
21614 * @count: number of XRIs to move
21616 * This routine tries to move some free common bufs from the specified pbl_pool
21617 * to the specified pvt_pool. It might move less than count XRIs if there's not
21618 * enough in public pool.
21621 * true - if XRIs are successfully moved from the specified pbl_pool to the
21622 * specified pvt_pool
21623 * false - if the specified pbl_pool is empty or locked by someone else
21626 _lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
21627 struct lpfc_pbl_pool *pbl_pool,
21628 struct lpfc_pvt_pool *pvt_pool, u32 count)
21630 struct lpfc_io_buf *lpfc_ncmd;
21631 struct lpfc_io_buf *lpfc_ncmd_next;
21632 unsigned long iflag;
21635 ret = spin_trylock_irqsave(&pbl_pool->lock, iflag);
21637 if (pbl_pool->count) {
21638 /* Move a batch of XRIs from public to private pool */
21639 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_to_pvt_pool);
21640 list_for_each_entry_safe(lpfc_ncmd,
21644 list_move_tail(&lpfc_ncmd->list,
21653 spin_unlock(&pvt_pool->lock);
21654 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
21657 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
21664 * lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
21665 * @phba: pointer to lpfc hba data structure.
21666 * @hwqid: belong to which HWQ.
21667 * @count: number of XRIs to move
21669 * This routine tries to find some free common bufs in one of public pools with
21670 * Round Robin method. The search always starts from local hwqid, then the next
21671 * HWQ which was found last time (rrb_next_hwqid). Once a public pool is found,
21672 * a batch of free common bufs are moved to private pool on hwqid.
21673 * It might move less than count XRIs if there's not enough in public pool.
21675 void lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, u32 hwqid, u32 count)
21677 struct lpfc_multixri_pool *multixri_pool;
21678 struct lpfc_multixri_pool *next_multixri_pool;
21679 struct lpfc_pvt_pool *pvt_pool;
21680 struct lpfc_pbl_pool *pbl_pool;
21681 struct lpfc_sli4_hdw_queue *qp;
21686 qp = &phba->sli4_hba.hdwq[hwqid];
21687 multixri_pool = qp->p_multixri_pool;
21688 pvt_pool = &multixri_pool->pvt_pool;
21689 pbl_pool = &multixri_pool->pbl_pool;
21691 /* Check if local pbl_pool is available */
21692 ret = _lpfc_move_xri_pbl_to_pvt(phba, qp, pbl_pool, pvt_pool, count);
21694 #ifdef LPFC_MXP_STAT
21695 multixri_pool->local_pbl_hit_count++;
21700 hwq_count = phba->cfg_hdw_queue;
21702 /* Get the next hwqid which was found last time */
21703 next_hwqid = multixri_pool->rrb_next_hwqid;
21706 /* Go to next hwq */
21707 next_hwqid = (next_hwqid + 1) % hwq_count;
21709 next_multixri_pool =
21710 phba->sli4_hba.hdwq[next_hwqid].p_multixri_pool;
21711 pbl_pool = &next_multixri_pool->pbl_pool;
21713 /* Check if the public free xri pool is available */
21714 ret = _lpfc_move_xri_pbl_to_pvt(
21715 phba, qp, pbl_pool, pvt_pool, count);
21717 /* Exit while-loop if success or all hwqid are checked */
21718 } while (!ret && next_hwqid != multixri_pool->rrb_next_hwqid);
21720 /* Starting point for the next time */
21721 multixri_pool->rrb_next_hwqid = next_hwqid;
21724 /* stats: all public pools are empty*/
21725 multixri_pool->pbl_empty_count++;
21728 #ifdef LPFC_MXP_STAT
21730 if (next_hwqid == hwqid)
21731 multixri_pool->local_pbl_hit_count++;
21733 multixri_pool->other_pbl_hit_count++;
21739 * lpfc_keep_pvt_pool_above_lowwm - Keep pvt_pool above low watermark
21740 * @phba: pointer to lpfc hba data structure.
21741 * @hwqid: belong to which HWQ.
21743 * This routine get a batch of XRIs from pbl_pool if pvt_pool is less than
21746 void lpfc_keep_pvt_pool_above_lowwm(struct lpfc_hba *phba, u32 hwqid)
21748 struct lpfc_multixri_pool *multixri_pool;
21749 struct lpfc_pvt_pool *pvt_pool;
21751 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
21752 pvt_pool = &multixri_pool->pvt_pool;
21754 if (pvt_pool->count < pvt_pool->low_watermark)
21755 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
21759 * lpfc_release_io_buf - Return one IO buf back to free pool
21760 * @phba: pointer to lpfc hba data structure.
21761 * @lpfc_ncmd: IO buf to be returned.
21762 * @qp: belong to which HWQ.
21764 * This routine returns one IO buf back to free pool. If this is an urgent IO,
21765 * the IO buf is returned to expedite pool. If cfg_xri_rebalancing==1,
21766 * the IO buf is returned to pbl_pool or pvt_pool based on watermark and
21767 * xri_limit. If cfg_xri_rebalancing==0, the IO buf is returned to
21768 * lpfc_io_buf_list_put.
21770 void lpfc_release_io_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_ncmd,
21771 struct lpfc_sli4_hdw_queue *qp)
21773 unsigned long iflag;
21774 struct lpfc_pbl_pool *pbl_pool;
21775 struct lpfc_pvt_pool *pvt_pool;
21776 struct lpfc_epd_pool *epd_pool;
21782 /* MUST zero fields if buffer is reused by another protocol */
21783 lpfc_ncmd->nvmeCmd = NULL;
21784 lpfc_ncmd->cur_iocbq.wqe_cmpl = NULL;
21785 lpfc_ncmd->cur_iocbq.iocb_cmpl = NULL;
21787 if (phba->cfg_xpsgl && !phba->nvmet_support &&
21788 !list_empty(&lpfc_ncmd->dma_sgl_xtra_list))
21789 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
21791 if (!list_empty(&lpfc_ncmd->dma_cmd_rsp_list))
21792 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
21794 if (phba->cfg_xri_rebalancing) {
21795 if (lpfc_ncmd->expedite) {
21796 /* Return to expedite pool */
21797 epd_pool = &phba->epd_pool;
21798 spin_lock_irqsave(&epd_pool->lock, iflag);
21799 list_add_tail(&lpfc_ncmd->list, &epd_pool->list);
21801 spin_unlock_irqrestore(&epd_pool->lock, iflag);
21805 /* Avoid invalid access if an IO sneaks in and is being rejected
21806 * just _after_ xri pools are destroyed in lpfc_offline.
21807 * Nothing much can be done at this point.
21809 if (!qp->p_multixri_pool)
21812 pbl_pool = &qp->p_multixri_pool->pbl_pool;
21813 pvt_pool = &qp->p_multixri_pool->pvt_pool;
21815 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
21816 abts_io_bufs = qp->abts_scsi_io_bufs;
21817 abts_io_bufs += qp->abts_nvme_io_bufs;
21819 xri_owned = pvt_pool->count + txcmplq_cnt + abts_io_bufs;
21820 xri_limit = qp->p_multixri_pool->xri_limit;
21822 #ifdef LPFC_MXP_STAT
21823 if (xri_owned <= xri_limit)
21824 qp->p_multixri_pool->below_limit_count++;
21826 qp->p_multixri_pool->above_limit_count++;
21829 /* XRI goes to either public or private free xri pool
21830 * based on watermark and xri_limit
21832 if ((pvt_pool->count < pvt_pool->low_watermark) ||
21833 (xri_owned < xri_limit &&
21834 pvt_pool->count < pvt_pool->high_watermark)) {
21835 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag,
21836 qp, free_pvt_pool);
21837 list_add_tail(&lpfc_ncmd->list,
21840 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
21842 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag,
21843 qp, free_pub_pool);
21844 list_add_tail(&lpfc_ncmd->list,
21847 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
21850 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag,
21852 list_add_tail(&lpfc_ncmd->list,
21853 &qp->lpfc_io_buf_list_put);
21855 spin_unlock_irqrestore(&qp->io_buf_list_put_lock,
21861 * lpfc_get_io_buf_from_private_pool - Get one free IO buf from private pool
21862 * @phba: pointer to lpfc hba data structure.
21863 * @qp: pointer to HDW queue
21864 * @pvt_pool: pointer to private pool data structure.
21865 * @ndlp: pointer to lpfc nodelist data structure.
21867 * This routine tries to get one free IO buf from private pool.
21870 * pointer to one free IO buf - if private pool is not empty
21871 * NULL - if private pool is empty
21873 static struct lpfc_io_buf *
21874 lpfc_get_io_buf_from_private_pool(struct lpfc_hba *phba,
21875 struct lpfc_sli4_hdw_queue *qp,
21876 struct lpfc_pvt_pool *pvt_pool,
21877 struct lpfc_nodelist *ndlp)
21879 struct lpfc_io_buf *lpfc_ncmd;
21880 struct lpfc_io_buf *lpfc_ncmd_next;
21881 unsigned long iflag;
21883 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag, qp, alloc_pvt_pool);
21884 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
21885 &pvt_pool->list, list) {
21886 if (lpfc_test_rrq_active(
21887 phba, ndlp, lpfc_ncmd->cur_iocbq.sli4_lxritag))
21889 list_del(&lpfc_ncmd->list);
21891 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
21894 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
21900 * lpfc_get_io_buf_from_expedite_pool - Get one free IO buf from expedite pool
21901 * @phba: pointer to lpfc hba data structure.
21903 * This routine tries to get one free IO buf from expedite pool.
21906 * pointer to one free IO buf - if expedite pool is not empty
21907 * NULL - if expedite pool is empty
21909 static struct lpfc_io_buf *
21910 lpfc_get_io_buf_from_expedite_pool(struct lpfc_hba *phba)
21912 struct lpfc_io_buf *lpfc_ncmd;
21913 struct lpfc_io_buf *lpfc_ncmd_next;
21914 unsigned long iflag;
21915 struct lpfc_epd_pool *epd_pool;
21917 epd_pool = &phba->epd_pool;
21920 spin_lock_irqsave(&epd_pool->lock, iflag);
21921 if (epd_pool->count > 0) {
21922 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
21923 &epd_pool->list, list) {
21924 list_del(&lpfc_ncmd->list);
21929 spin_unlock_irqrestore(&epd_pool->lock, iflag);
21935 * lpfc_get_io_buf_from_multixri_pools - Get one free IO bufs
21936 * @phba: pointer to lpfc hba data structure.
21937 * @ndlp: pointer to lpfc nodelist data structure.
21938 * @hwqid: belong to which HWQ
21939 * @expedite: 1 means this request is urgent.
21941 * This routine will do the following actions and then return a pointer to
21944 * 1. If private free xri count is empty, move some XRIs from public to
21946 * 2. Get one XRI from private free xri pool.
21947 * 3. If we fail to get one from pvt_pool and this is an expedite request,
21948 * get one free xri from expedite pool.
21950 * Note: ndlp is only used on SCSI side for RRQ testing.
21951 * The caller should pass NULL for ndlp on NVME side.
21954 * pointer to one free IO buf - if private pool is not empty
21955 * NULL - if private pool is empty
21957 static struct lpfc_io_buf *
21958 lpfc_get_io_buf_from_multixri_pools(struct lpfc_hba *phba,
21959 struct lpfc_nodelist *ndlp,
21960 int hwqid, int expedite)
21962 struct lpfc_sli4_hdw_queue *qp;
21963 struct lpfc_multixri_pool *multixri_pool;
21964 struct lpfc_pvt_pool *pvt_pool;
21965 struct lpfc_io_buf *lpfc_ncmd;
21967 qp = &phba->sli4_hba.hdwq[hwqid];
21969 multixri_pool = qp->p_multixri_pool;
21970 pvt_pool = &multixri_pool->pvt_pool;
21971 multixri_pool->io_req_count++;
21973 /* If pvt_pool is empty, move some XRIs from public to private pool */
21974 if (pvt_pool->count == 0)
21975 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
21977 /* Get one XRI from private free xri pool */
21978 lpfc_ncmd = lpfc_get_io_buf_from_private_pool(phba, qp, pvt_pool, ndlp);
21981 lpfc_ncmd->hdwq = qp;
21982 lpfc_ncmd->hdwq_no = hwqid;
21983 } else if (expedite) {
21984 /* If we fail to get one from pvt_pool and this is an expedite
21985 * request, get one free xri from expedite pool.
21987 lpfc_ncmd = lpfc_get_io_buf_from_expedite_pool(phba);
21993 static inline struct lpfc_io_buf *
21994 lpfc_io_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int idx)
21996 struct lpfc_sli4_hdw_queue *qp;
21997 struct lpfc_io_buf *lpfc_cmd, *lpfc_cmd_next;
21999 qp = &phba->sli4_hba.hdwq[idx];
22000 list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next,
22001 &qp->lpfc_io_buf_list_get, list) {
22002 if (lpfc_test_rrq_active(phba, ndlp,
22003 lpfc_cmd->cur_iocbq.sli4_lxritag))
22006 if (lpfc_cmd->flags & LPFC_SBUF_NOT_POSTED)
22009 list_del_init(&lpfc_cmd->list);
22011 lpfc_cmd->hdwq = qp;
22012 lpfc_cmd->hdwq_no = idx;
22019 * lpfc_get_io_buf - Get one IO buffer from free pool
22020 * @phba: The HBA for which this call is being executed.
22021 * @ndlp: pointer to lpfc nodelist data structure.
22022 * @hwqid: belong to which HWQ
22023 * @expedite: 1 means this request is urgent.
22025 * This routine gets one IO buffer from free pool. If cfg_xri_rebalancing==1,
22026 * removes a IO buffer from multiXRI pools. If cfg_xri_rebalancing==0, removes
22027 * a IO buffer from head of @hdwq io_buf_list and returns to caller.
22029 * Note: ndlp is only used on SCSI side for RRQ testing.
22030 * The caller should pass NULL for ndlp on NVME side.
22034 * Pointer to lpfc_io_buf - Success
22036 struct lpfc_io_buf *lpfc_get_io_buf(struct lpfc_hba *phba,
22037 struct lpfc_nodelist *ndlp,
22038 u32 hwqid, int expedite)
22040 struct lpfc_sli4_hdw_queue *qp;
22041 unsigned long iflag;
22042 struct lpfc_io_buf *lpfc_cmd;
22044 qp = &phba->sli4_hba.hdwq[hwqid];
22047 if (phba->cfg_xri_rebalancing)
22048 lpfc_cmd = lpfc_get_io_buf_from_multixri_pools(
22049 phba, ndlp, hwqid, expedite);
22051 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_get_lock, iflag,
22052 qp, alloc_xri_get);
22053 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite)
22054 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
22056 lpfc_qp_spin_lock(&qp->io_buf_list_put_lock,
22057 qp, alloc_xri_put);
22058 list_splice(&qp->lpfc_io_buf_list_put,
22059 &qp->lpfc_io_buf_list_get);
22060 qp->get_io_bufs += qp->put_io_bufs;
22061 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
22062 qp->put_io_bufs = 0;
22063 spin_unlock(&qp->io_buf_list_put_lock);
22064 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT ||
22066 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
22068 spin_unlock_irqrestore(&qp->io_buf_list_get_lock, iflag);
22075 * lpfc_read_object - Retrieve object data from HBA
22076 * @phba: The HBA for which this call is being executed.
22077 * @rdobject: Pathname of object data we want to read.
22078 * @datap: Pointer to where data will be copied to.
22079 * @datasz: size of data area
22081 * This routine is limited to object sizes of LPFC_BPL_SIZE (1024) or less.
22082 * The data will be truncated if datasz is not large enough.
22083 * Version 1 is not supported with Embedded mbox cmd, so we must use version 0.
22084 * Returns the actual bytes read from the object.
22087 lpfc_read_object(struct lpfc_hba *phba, char *rdobject, uint32_t *datap,
22090 struct lpfc_mbx_read_object *read_object;
22091 LPFC_MBOXQ_t *mbox;
22092 int rc, length, eof, j, byte_cnt = 0;
22093 uint32_t shdr_status, shdr_add_status;
22094 union lpfc_sli4_cfg_shdr *shdr;
22095 struct lpfc_dmabuf *pcmd;
22096 u32 rd_object_name[LPFC_MBX_OBJECT_NAME_LEN_DW] = {0};
22098 /* sanity check on queue memory */
22102 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
22105 length = (sizeof(struct lpfc_mbx_read_object) -
22106 sizeof(struct lpfc_sli4_cfg_mhdr));
22107 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
22108 LPFC_MBOX_OPCODE_READ_OBJECT,
22109 length, LPFC_SLI4_MBX_EMBED);
22110 read_object = &mbox->u.mqe.un.read_object;
22111 shdr = (union lpfc_sli4_cfg_shdr *)&read_object->header.cfg_shdr;
22113 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_0);
22114 bf_set(lpfc_mbx_rd_object_rlen, &read_object->u.request, datasz);
22115 read_object->u.request.rd_object_offset = 0;
22116 read_object->u.request.rd_object_cnt = 1;
22118 memset((void *)read_object->u.request.rd_object_name, 0,
22120 scnprintf((char *)rd_object_name, sizeof(rd_object_name), rdobject);
22121 for (j = 0; j < strlen(rdobject); j++)
22122 read_object->u.request.rd_object_name[j] =
22123 cpu_to_le32(rd_object_name[j]);
22125 pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL);
22127 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
22128 if (!pcmd || !pcmd->virt) {
22130 mempool_free(mbox, phba->mbox_mem_pool);
22133 memset((void *)pcmd->virt, 0, LPFC_BPL_SIZE);
22134 read_object->u.request.rd_object_hbuf[0].pa_lo =
22135 putPaddrLow(pcmd->phys);
22136 read_object->u.request.rd_object_hbuf[0].pa_hi =
22137 putPaddrHigh(pcmd->phys);
22138 read_object->u.request.rd_object_hbuf[0].length = LPFC_BPL_SIZE;
22140 mbox->vport = phba->pport;
22141 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
22142 mbox->ctx_buf = NULL;
22143 mbox->ctx_ndlp = NULL;
22145 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
22146 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
22147 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
22149 if (shdr_status == STATUS_FAILED &&
22150 shdr_add_status == ADD_STATUS_INVALID_OBJECT_NAME) {
22151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_CGN_MGMT,
22152 "4674 No port cfg file in FW.\n");
22153 byte_cnt = -ENOENT;
22154 } else if (shdr_status || shdr_add_status || rc) {
22155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_CGN_MGMT,
22156 "2625 READ_OBJECT mailbox failed with "
22157 "status x%x add_status x%x, mbx status x%x\n",
22158 shdr_status, shdr_add_status, rc);
22162 length = read_object->u.response.rd_object_actual_rlen;
22163 eof = bf_get(lpfc_mbx_rd_object_eof, &read_object->u.response);
22164 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_CGN_MGMT,
22165 "2626 READ_OBJECT Success len %d:%d, EOF %d\n",
22166 length, datasz, eof);
22168 /* Detect the port config file exists but is empty */
22169 if (!length && eof) {
22175 lpfc_sli_pcimem_bcopy(pcmd->virt, datap, byte_cnt);
22179 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
22181 mempool_free(mbox, phba->mbox_mem_pool);
22186 * lpfc_get_sgl_per_hdwq - Get one SGL chunk from hdwq's pool
22187 * @phba: The HBA for which this call is being executed.
22188 * @lpfc_buf: IO buf structure to append the SGL chunk
22190 * This routine gets one SGL chunk buffer from hdwq's SGL chunk pool,
22191 * and will allocate an SGL chunk if the pool is empty.
22195 * Pointer to sli4_hybrid_sgl - Success
22197 struct sli4_hybrid_sgl *
22198 lpfc_get_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
22200 struct sli4_hybrid_sgl *list_entry = NULL;
22201 struct sli4_hybrid_sgl *tmp = NULL;
22202 struct sli4_hybrid_sgl *allocated_sgl = NULL;
22203 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
22204 struct list_head *buf_list = &hdwq->sgl_list;
22205 unsigned long iflags;
22207 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22209 if (likely(!list_empty(buf_list))) {
22210 /* break off 1 chunk from the sgl_list */
22211 list_for_each_entry_safe(list_entry, tmp,
22212 buf_list, list_node) {
22213 list_move_tail(&list_entry->list_node,
22214 &lpfc_buf->dma_sgl_xtra_list);
22218 /* allocate more */
22219 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22220 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
22221 cpu_to_node(hdwq->io_wq->chann));
22223 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
22224 "8353 error kmalloc memory for HDWQ "
22226 lpfc_buf->hdwq_no, __func__);
22230 tmp->dma_sgl = dma_pool_alloc(phba->lpfc_sg_dma_buf_pool,
22231 GFP_ATOMIC, &tmp->dma_phys_sgl);
22232 if (!tmp->dma_sgl) {
22233 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
22234 "8354 error pool_alloc memory for HDWQ "
22236 lpfc_buf->hdwq_no, __func__);
22241 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22242 list_add_tail(&tmp->list_node, &lpfc_buf->dma_sgl_xtra_list);
22245 allocated_sgl = list_last_entry(&lpfc_buf->dma_sgl_xtra_list,
22246 struct sli4_hybrid_sgl,
22249 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22251 return allocated_sgl;
22255 * lpfc_put_sgl_per_hdwq - Put one SGL chunk into hdwq pool
22256 * @phba: The HBA for which this call is being executed.
22257 * @lpfc_buf: IO buf structure with the SGL chunk
22259 * This routine puts one SGL chunk buffer into hdwq's SGL chunk pool.
22266 lpfc_put_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
22269 struct sli4_hybrid_sgl *list_entry = NULL;
22270 struct sli4_hybrid_sgl *tmp = NULL;
22271 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
22272 struct list_head *buf_list = &hdwq->sgl_list;
22273 unsigned long iflags;
22275 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22277 if (likely(!list_empty(&lpfc_buf->dma_sgl_xtra_list))) {
22278 list_for_each_entry_safe(list_entry, tmp,
22279 &lpfc_buf->dma_sgl_xtra_list,
22281 list_move_tail(&list_entry->list_node,
22288 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22293 * lpfc_free_sgl_per_hdwq - Free all SGL chunks of hdwq pool
22294 * @phba: phba object
22295 * @hdwq: hdwq to cleanup sgl buff resources on
22297 * This routine frees all SGL chunks of hdwq SGL chunk pool.
22303 lpfc_free_sgl_per_hdwq(struct lpfc_hba *phba,
22304 struct lpfc_sli4_hdw_queue *hdwq)
22306 struct list_head *buf_list = &hdwq->sgl_list;
22307 struct sli4_hybrid_sgl *list_entry = NULL;
22308 struct sli4_hybrid_sgl *tmp = NULL;
22309 unsigned long iflags;
22311 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22313 /* Free sgl pool */
22314 list_for_each_entry_safe(list_entry, tmp,
22315 buf_list, list_node) {
22316 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
22317 list_entry->dma_sgl,
22318 list_entry->dma_phys_sgl);
22319 list_del(&list_entry->list_node);
22323 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22327 * lpfc_get_cmd_rsp_buf_per_hdwq - Get one CMD/RSP buffer from hdwq
22328 * @phba: The HBA for which this call is being executed.
22329 * @lpfc_buf: IO buf structure to attach the CMD/RSP buffer
22331 * This routine gets one CMD/RSP buffer from hdwq's CMD/RSP pool,
22332 * and will allocate an CMD/RSP buffer if the pool is empty.
22336 * Pointer to fcp_cmd_rsp_buf - Success
22338 struct fcp_cmd_rsp_buf *
22339 lpfc_get_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
22340 struct lpfc_io_buf *lpfc_buf)
22342 struct fcp_cmd_rsp_buf *list_entry = NULL;
22343 struct fcp_cmd_rsp_buf *tmp = NULL;
22344 struct fcp_cmd_rsp_buf *allocated_buf = NULL;
22345 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
22346 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
22347 unsigned long iflags;
22349 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22351 if (likely(!list_empty(buf_list))) {
22352 /* break off 1 chunk from the list */
22353 list_for_each_entry_safe(list_entry, tmp,
22356 list_move_tail(&list_entry->list_node,
22357 &lpfc_buf->dma_cmd_rsp_list);
22361 /* allocate more */
22362 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22363 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
22364 cpu_to_node(hdwq->io_wq->chann));
22366 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
22367 "8355 error kmalloc memory for HDWQ "
22369 lpfc_buf->hdwq_no, __func__);
22373 tmp->fcp_cmnd = dma_pool_alloc(phba->lpfc_cmd_rsp_buf_pool,
22375 &tmp->fcp_cmd_rsp_dma_handle);
22377 if (!tmp->fcp_cmnd) {
22378 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
22379 "8356 error pool_alloc memory for HDWQ "
22381 lpfc_buf->hdwq_no, __func__);
22386 tmp->fcp_rsp = (struct fcp_rsp *)((uint8_t *)tmp->fcp_cmnd +
22387 sizeof(struct fcp_cmnd));
22389 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22390 list_add_tail(&tmp->list_node, &lpfc_buf->dma_cmd_rsp_list);
22393 allocated_buf = list_last_entry(&lpfc_buf->dma_cmd_rsp_list,
22394 struct fcp_cmd_rsp_buf,
22397 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22399 return allocated_buf;
22403 * lpfc_put_cmd_rsp_buf_per_hdwq - Put one CMD/RSP buffer into hdwq pool
22404 * @phba: The HBA for which this call is being executed.
22405 * @lpfc_buf: IO buf structure with the CMD/RSP buf
22407 * This routine puts one CMD/RSP buffer into executing CPU's CMD/RSP pool.
22414 lpfc_put_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
22415 struct lpfc_io_buf *lpfc_buf)
22418 struct fcp_cmd_rsp_buf *list_entry = NULL;
22419 struct fcp_cmd_rsp_buf *tmp = NULL;
22420 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
22421 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
22422 unsigned long iflags;
22424 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22426 if (likely(!list_empty(&lpfc_buf->dma_cmd_rsp_list))) {
22427 list_for_each_entry_safe(list_entry, tmp,
22428 &lpfc_buf->dma_cmd_rsp_list,
22430 list_move_tail(&list_entry->list_node,
22437 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22442 * lpfc_free_cmd_rsp_buf_per_hdwq - Free all CMD/RSP chunks of hdwq pool
22443 * @phba: phba object
22444 * @hdwq: hdwq to cleanup cmd rsp buff resources on
22446 * This routine frees all CMD/RSP buffers of hdwq's CMD/RSP buf pool.
22452 lpfc_free_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
22453 struct lpfc_sli4_hdw_queue *hdwq)
22455 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
22456 struct fcp_cmd_rsp_buf *list_entry = NULL;
22457 struct fcp_cmd_rsp_buf *tmp = NULL;
22458 unsigned long iflags;
22460 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22462 /* Free cmd_rsp buf pool */
22463 list_for_each_entry_safe(list_entry, tmp,
22466 dma_pool_free(phba->lpfc_cmd_rsp_buf_pool,
22467 list_entry->fcp_cmnd,
22468 list_entry->fcp_cmd_rsp_dma_handle);
22469 list_del(&list_entry->list_node);
22473 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);