1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2023 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/crash_dump.h>
39 #include <asm/set_memory.h>
45 #include "lpfc_sli4.h"
47 #include "lpfc_disc.h"
49 #include "lpfc_scsi.h"
50 #include "lpfc_nvme.h"
51 #include "lpfc_crtn.h"
52 #include "lpfc_logmsg.h"
53 #include "lpfc_compat.h"
54 #include "lpfc_debugfs.h"
55 #include "lpfc_vport.h"
56 #include "lpfc_version.h"
58 /* There are only four IOCB completion types. */
59 typedef enum _lpfc_iocb_type {
67 /* Provide function prototypes local to this module. */
68 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
70 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
71 uint8_t *, uint32_t *);
72 static struct lpfc_iocbq *
73 lpfc_sli4_els_preprocess_rspiocbq(struct lpfc_hba *phba,
74 struct lpfc_iocbq *rspiocbq);
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,
86 enum lpfc_poll_mode poll_mode);
87 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
88 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
89 static struct lpfc_cqe *lpfc_sli4_cq_get(struct lpfc_queue *q);
90 static void __lpfc_sli4_consume_cqe(struct lpfc_hba *phba,
91 struct lpfc_queue *cq,
92 struct lpfc_cqe *cqe);
93 static uint16_t lpfc_wqe_bpl2sgl(struct lpfc_hba *phba,
94 struct lpfc_iocbq *pwqeq,
95 struct lpfc_sglq *sglq);
97 union lpfc_wqe128 lpfc_iread_cmd_template;
98 union lpfc_wqe128 lpfc_iwrite_cmd_template;
99 union lpfc_wqe128 lpfc_icmnd_cmd_template;
101 /* Setup WQE templates for IOs */
102 void lpfc_wqe_cmd_template(void)
104 union lpfc_wqe128 *wqe;
107 wqe = &lpfc_iread_cmd_template;
108 memset(wqe, 0, sizeof(union lpfc_wqe128));
110 /* Word 0, 1, 2 - BDE is variable */
112 /* Word 3 - cmd_buff_len, payload_offset_len is zero */
114 /* Word 4 - total_xfer_len is variable */
116 /* Word 5 - is zero */
118 /* Word 6 - ctxt_tag, xri_tag is variable */
121 bf_set(wqe_cmnd, &wqe->fcp_iread.wqe_com, CMD_FCP_IREAD64_WQE);
122 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, PARM_READ_CHECK);
123 bf_set(wqe_class, &wqe->fcp_iread.wqe_com, CLASS3);
124 bf_set(wqe_ct, &wqe->fcp_iread.wqe_com, SLI4_CT_RPI);
126 /* Word 8 - abort_tag is variable */
128 /* Word 9 - reqtag is variable */
130 /* Word 10 - dbde, wqes is variable */
131 bf_set(wqe_qosd, &wqe->fcp_iread.wqe_com, 0);
132 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
133 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com, LPFC_WQE_LENLOC_WORD4);
134 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
135 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
137 /* Word 11 - pbde is variable */
138 bf_set(wqe_cmd_type, &wqe->fcp_iread.wqe_com, COMMAND_DATA_IN);
139 bf_set(wqe_cqid, &wqe->fcp_iread.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
140 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
142 /* Word 12 - is zero */
144 /* Word 13, 14, 15 - PBDE is variable */
146 /* IWRITE template */
147 wqe = &lpfc_iwrite_cmd_template;
148 memset(wqe, 0, sizeof(union lpfc_wqe128));
150 /* Word 0, 1, 2 - BDE is variable */
152 /* Word 3 - cmd_buff_len, payload_offset_len is zero */
154 /* Word 4 - total_xfer_len is variable */
156 /* Word 5 - initial_xfer_len is variable */
158 /* Word 6 - ctxt_tag, xri_tag is variable */
161 bf_set(wqe_cmnd, &wqe->fcp_iwrite.wqe_com, CMD_FCP_IWRITE64_WQE);
162 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, PARM_READ_CHECK);
163 bf_set(wqe_class, &wqe->fcp_iwrite.wqe_com, CLASS3);
164 bf_set(wqe_ct, &wqe->fcp_iwrite.wqe_com, SLI4_CT_RPI);
166 /* Word 8 - abort_tag is variable */
168 /* Word 9 - reqtag is variable */
170 /* Word 10 - dbde, wqes is variable */
171 bf_set(wqe_qosd, &wqe->fcp_iwrite.wqe_com, 0);
172 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
173 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_LENLOC_WORD4);
174 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
175 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
177 /* Word 11 - pbde is variable */
178 bf_set(wqe_cmd_type, &wqe->fcp_iwrite.wqe_com, COMMAND_DATA_OUT);
179 bf_set(wqe_cqid, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
180 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
182 /* Word 12 - is zero */
184 /* Word 13, 14, 15 - PBDE is variable */
187 wqe = &lpfc_icmnd_cmd_template;
188 memset(wqe, 0, sizeof(union lpfc_wqe128));
190 /* Word 0, 1, 2 - BDE is variable */
192 /* Word 3 - payload_offset_len is variable */
194 /* Word 4, 5 - is zero */
196 /* Word 6 - ctxt_tag, xri_tag is variable */
199 bf_set(wqe_cmnd, &wqe->fcp_icmd.wqe_com, CMD_FCP_ICMND64_WQE);
200 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
201 bf_set(wqe_class, &wqe->fcp_icmd.wqe_com, CLASS3);
202 bf_set(wqe_ct, &wqe->fcp_icmd.wqe_com, SLI4_CT_RPI);
204 /* Word 8 - abort_tag is variable */
206 /* Word 9 - reqtag is variable */
208 /* Word 10 - dbde, wqes is variable */
209 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
210 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_NONE);
211 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com, LPFC_WQE_LENLOC_NONE);
212 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
213 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
216 bf_set(wqe_cmd_type, &wqe->fcp_icmd.wqe_com, COMMAND_DATA_IN);
217 bf_set(wqe_cqid, &wqe->fcp_icmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
218 bf_set(wqe_pbde, &wqe->fcp_icmd.wqe_com, 0);
220 /* Word 12, 13, 14, 15 - is zero */
223 #if defined(CONFIG_64BIT) && defined(__LITTLE_ENDIAN)
225 * lpfc_sli4_pcimem_bcopy - SLI4 memory copy function
226 * @srcp: Source memory pointer.
227 * @destp: Destination memory pointer.
228 * @cnt: Number of words required to be copied.
229 * Must be a multiple of sizeof(uint64_t)
231 * This function is used for copying data between driver memory
232 * and the SLI WQ. This function also changes the endianness
233 * of each word if native endianness is different from SLI
234 * endianness. This function can be called with or without
238 lpfc_sli4_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
240 uint64_t *src = srcp;
241 uint64_t *dest = destp;
244 for (i = 0; i < (int)cnt; i += sizeof(uint64_t))
248 #define lpfc_sli4_pcimem_bcopy(a, b, c) lpfc_sli_pcimem_bcopy(a, b, c)
252 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
253 * @q: The Work Queue to operate on.
254 * @wqe: The work Queue Entry to put on the Work queue.
256 * This routine will copy the contents of @wqe to the next available entry on
257 * the @q. This function will then ring the Work Queue Doorbell to signal the
258 * HBA to start processing the Work Queue Entry. This function returns 0 if
259 * successful. If no entries are available on @q then this function will return
261 * The caller is expected to hold the hbalock when calling this routine.
264 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe128 *wqe)
266 union lpfc_wqe *temp_wqe;
267 struct lpfc_register doorbell;
274 /* sanity check on queue memory */
278 temp_wqe = lpfc_sli4_qe(q, q->host_index);
280 /* If the host has not yet processed the next entry then we are done */
281 idx = ((q->host_index + 1) % q->entry_count);
282 if (idx == q->hba_index) {
287 /* set consumption flag every once in a while */
288 if (!((q->host_index + 1) % q->notify_interval))
289 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
291 bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
292 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
293 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
294 lpfc_sli4_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
295 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
296 /* write to DPP aperture taking advatage of Combined Writes */
297 tmp = (uint8_t *)temp_wqe;
299 for (i = 0; i < q->entry_size; i += sizeof(uint64_t))
300 __raw_writeq(*((uint64_t *)(tmp + i)),
303 for (i = 0; i < q->entry_size; i += sizeof(uint32_t))
304 __raw_writel(*((uint32_t *)(tmp + i)),
308 /* ensure WQE bcopy and DPP flushed before doorbell write */
311 /* Update the host index before invoking device */
312 host_index = q->host_index;
318 if (q->db_format == LPFC_DB_LIST_FORMAT) {
319 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
320 bf_set(lpfc_if6_wq_db_list_fm_num_posted, &doorbell, 1);
321 bf_set(lpfc_if6_wq_db_list_fm_dpp, &doorbell, 1);
322 bf_set(lpfc_if6_wq_db_list_fm_dpp_id, &doorbell,
324 bf_set(lpfc_if6_wq_db_list_fm_id, &doorbell,
327 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
328 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
330 /* Leave bits <23:16> clear for if_type 6 dpp */
331 if_type = bf_get(lpfc_sli_intf_if_type,
332 &q->phba->sli4_hba.sli_intf);
333 if (if_type != LPFC_SLI_INTF_IF_TYPE_6)
334 bf_set(lpfc_wq_db_list_fm_index, &doorbell,
337 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
338 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
339 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
343 writel(doorbell.word0, q->db_regaddr);
349 * lpfc_sli4_wq_release - Updates internal hba index for WQ
350 * @q: The Work Queue to operate on.
351 * @index: The index to advance the hba index to.
353 * This routine will update the HBA index of a queue to reflect consumption of
354 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
355 * an entry the host calls this function to update the queue's internal
359 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
361 /* sanity check on queue memory */
365 q->hba_index = index;
369 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
370 * @q: The Mailbox Queue to operate on.
371 * @mqe: The Mailbox Queue Entry to put on the Work queue.
373 * This routine will copy the contents of @mqe to the next available entry on
374 * the @q. This function will then ring the Work Queue Doorbell to signal the
375 * HBA to start processing the Work Queue Entry. This function returns 0 if
376 * successful. If no entries are available on @q then this function will return
378 * The caller is expected to hold the hbalock when calling this routine.
381 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
383 struct lpfc_mqe *temp_mqe;
384 struct lpfc_register doorbell;
386 /* sanity check on queue memory */
389 temp_mqe = lpfc_sli4_qe(q, q->host_index);
391 /* If the host has not yet processed the next entry then we are done */
392 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
394 lpfc_sli4_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
395 /* Save off the mailbox pointer for completion */
396 q->phba->mbox = (MAILBOX_t *)temp_mqe;
398 /* Update the host index before invoking device */
399 q->host_index = ((q->host_index + 1) % q->entry_count);
403 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
404 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
405 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
410 * lpfc_sli4_mq_release - Updates internal hba index for MQ
411 * @q: The Mailbox Queue to operate on.
413 * This routine will update the HBA index of a queue to reflect consumption of
414 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
415 * an entry the host calls this function to update the queue's internal
416 * pointers. This routine returns the number of entries that were consumed by
420 lpfc_sli4_mq_release(struct lpfc_queue *q)
422 /* sanity check on queue memory */
426 /* Clear the mailbox pointer for completion */
427 q->phba->mbox = NULL;
428 q->hba_index = ((q->hba_index + 1) % q->entry_count);
433 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
434 * @q: The Event Queue to get the first valid EQE from
436 * This routine will get the first valid Event Queue Entry from @q, update
437 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
438 * the Queue (no more work to do), or the Queue is full of EQEs that have been
439 * processed, but not popped back to the HBA then this routine will return NULL.
441 static struct lpfc_eqe *
442 lpfc_sli4_eq_get(struct lpfc_queue *q)
444 struct lpfc_eqe *eqe;
446 /* sanity check on queue memory */
449 eqe = lpfc_sli4_qe(q, q->host_index);
451 /* If the next EQE is not valid then we are done */
452 if (bf_get_le32(lpfc_eqe_valid, eqe) != q->qe_valid)
456 * insert barrier for instruction interlock : data from the hardware
457 * must have the valid bit checked before it can be copied and acted
458 * upon. Speculative instructions were allowing a bcopy at the start
459 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
460 * after our return, to copy data before the valid bit check above
461 * was done. As such, some of the copied data was stale. The barrier
462 * ensures the check is before any data is copied.
469 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
470 * @q: The Event Queue to disable interrupts
474 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
476 struct lpfc_register doorbell;
479 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
480 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
481 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
482 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
483 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
484 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
488 * lpfc_sli4_if6_eq_clr_intr - Turn off interrupts from this EQ
489 * @q: The Event Queue to disable interrupts
493 lpfc_sli4_if6_eq_clr_intr(struct lpfc_queue *q)
495 struct lpfc_register doorbell;
498 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
499 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
503 * lpfc_sli4_write_eq_db - write EQ DB for eqe's consumed or arm state
504 * @phba: adapter with EQ
505 * @q: The Event Queue that the host has completed processing for.
506 * @count: Number of elements that have been consumed
507 * @arm: Indicates whether the host wants to arms this CQ.
509 * This routine will notify the HBA, by ringing the doorbell, that count
510 * number of EQEs have been processed. The @arm parameter indicates whether
511 * the queue should be rearmed when ringing the doorbell.
514 lpfc_sli4_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
515 uint32_t count, bool arm)
517 struct lpfc_register doorbell;
519 /* sanity check on queue memory */
520 if (unlikely(!q || (count == 0 && !arm)))
523 /* ring doorbell for number popped */
526 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
527 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
529 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
530 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
531 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
532 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
533 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
534 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
535 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
536 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
537 readl(q->phba->sli4_hba.EQDBregaddr);
541 * lpfc_sli4_if6_write_eq_db - write EQ DB for eqe's consumed or arm state
542 * @phba: adapter with EQ
543 * @q: The Event Queue that the host has completed processing for.
544 * @count: Number of elements that have been consumed
545 * @arm: Indicates whether the host wants to arms this CQ.
547 * This routine will notify the HBA, by ringing the doorbell, that count
548 * number of EQEs have been processed. The @arm parameter indicates whether
549 * the queue should be rearmed when ringing the doorbell.
552 lpfc_sli4_if6_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
553 uint32_t count, bool arm)
555 struct lpfc_register doorbell;
557 /* sanity check on queue memory */
558 if (unlikely(!q || (count == 0 && !arm)))
561 /* ring doorbell for number popped */
564 bf_set(lpfc_if6_eq_doorbell_arm, &doorbell, 1);
565 bf_set(lpfc_if6_eq_doorbell_num_released, &doorbell, count);
566 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
567 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
568 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
569 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
570 readl(q->phba->sli4_hba.EQDBregaddr);
574 __lpfc_sli4_consume_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
575 struct lpfc_eqe *eqe)
577 if (!phba->sli4_hba.pc_sli4_params.eqav)
578 bf_set_le32(lpfc_eqe_valid, eqe, 0);
580 eq->host_index = ((eq->host_index + 1) % eq->entry_count);
582 /* if the index wrapped around, toggle the valid bit */
583 if (phba->sli4_hba.pc_sli4_params.eqav && !eq->host_index)
584 eq->qe_valid = (eq->qe_valid) ? 0 : 1;
588 lpfc_sli4_eqcq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
590 struct lpfc_eqe *eqe = NULL;
591 u32 eq_count = 0, cq_count = 0;
592 struct lpfc_cqe *cqe = NULL;
593 struct lpfc_queue *cq = NULL, *childq = NULL;
596 /* walk all the EQ entries and drop on the floor */
597 eqe = lpfc_sli4_eq_get(eq);
599 /* Get the reference to the corresponding CQ */
600 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
603 list_for_each_entry(childq, &eq->child_list, list) {
604 if (childq->queue_id == cqid) {
609 /* If CQ is valid, iterate through it and drop all the CQEs */
611 cqe = lpfc_sli4_cq_get(cq);
613 __lpfc_sli4_consume_cqe(phba, cq, cqe);
615 cqe = lpfc_sli4_cq_get(cq);
617 /* Clear and re-arm the CQ */
618 phba->sli4_hba.sli4_write_cq_db(phba, cq, cq_count,
622 __lpfc_sli4_consume_eqe(phba, eq, eqe);
624 eqe = lpfc_sli4_eq_get(eq);
627 /* Clear and re-arm the EQ */
628 phba->sli4_hba.sli4_write_eq_db(phba, eq, eq_count, LPFC_QUEUE_REARM);
632 lpfc_sli4_process_eq(struct lpfc_hba *phba, struct lpfc_queue *eq,
633 u8 rearm, enum lpfc_poll_mode poll_mode)
635 struct lpfc_eqe *eqe;
636 int count = 0, consumed = 0;
638 if (cmpxchg(&eq->queue_claimed, 0, 1) != 0)
641 eqe = lpfc_sli4_eq_get(eq);
643 lpfc_sli4_hba_handle_eqe(phba, eq, eqe, poll_mode);
644 __lpfc_sli4_consume_eqe(phba, eq, eqe);
647 if (!(++count % eq->max_proc_limit))
650 if (!(count % eq->notify_interval)) {
651 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed,
656 eqe = lpfc_sli4_eq_get(eq);
658 eq->EQ_processed += count;
660 /* Track the max number of EQEs processed in 1 intr */
661 if (count > eq->EQ_max_eqe)
662 eq->EQ_max_eqe = count;
664 xchg(&eq->queue_claimed, 0);
667 /* Always clear the EQ. */
668 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed, rearm);
674 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
675 * @q: The Completion Queue to get the first valid CQE from
677 * This routine will get the first valid Completion Queue Entry from @q, update
678 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
679 * the Queue (no more work to do), or the Queue is full of CQEs that have been
680 * processed, but not popped back to the HBA then this routine will return NULL.
682 static struct lpfc_cqe *
683 lpfc_sli4_cq_get(struct lpfc_queue *q)
685 struct lpfc_cqe *cqe;
687 /* sanity check on queue memory */
690 cqe = lpfc_sli4_qe(q, q->host_index);
692 /* If the next CQE is not valid then we are done */
693 if (bf_get_le32(lpfc_cqe_valid, cqe) != q->qe_valid)
697 * insert barrier for instruction interlock : data from the hardware
698 * must have the valid bit checked before it can be copied and acted
699 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
700 * instructions allowing action on content before valid bit checked,
701 * add barrier here as well. May not be needed as "content" is a
702 * single 32-bit entity here (vs multi word structure for cq's).
709 __lpfc_sli4_consume_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
710 struct lpfc_cqe *cqe)
712 if (!phba->sli4_hba.pc_sli4_params.cqav)
713 bf_set_le32(lpfc_cqe_valid, cqe, 0);
715 cq->host_index = ((cq->host_index + 1) % cq->entry_count);
717 /* if the index wrapped around, toggle the valid bit */
718 if (phba->sli4_hba.pc_sli4_params.cqav && !cq->host_index)
719 cq->qe_valid = (cq->qe_valid) ? 0 : 1;
723 * lpfc_sli4_write_cq_db - write cq DB for entries consumed or arm state.
724 * @phba: the adapter with the CQ
725 * @q: The Completion Queue that the host has completed processing for.
726 * @count: the number of elements that were consumed
727 * @arm: Indicates whether the host wants to arms this CQ.
729 * This routine will notify the HBA, by ringing the doorbell, that the
730 * CQEs have been processed. The @arm parameter specifies whether the
731 * queue should be rearmed when ringing the doorbell.
734 lpfc_sli4_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
735 uint32_t count, bool arm)
737 struct lpfc_register doorbell;
739 /* sanity check on queue memory */
740 if (unlikely(!q || (count == 0 && !arm)))
743 /* ring doorbell for number popped */
746 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
747 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
748 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
749 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
750 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
751 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
752 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
756 * lpfc_sli4_if6_write_cq_db - write cq DB for entries consumed or arm state.
757 * @phba: the adapter with the CQ
758 * @q: The Completion Queue that the host has completed processing for.
759 * @count: the number of elements that were consumed
760 * @arm: Indicates whether the host wants to arms this CQ.
762 * This routine will notify the HBA, by ringing the doorbell, that the
763 * CQEs have been processed. The @arm parameter specifies whether the
764 * queue should be rearmed when ringing the doorbell.
767 lpfc_sli4_if6_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
768 uint32_t count, bool arm)
770 struct lpfc_register doorbell;
772 /* sanity check on queue memory */
773 if (unlikely(!q || (count == 0 && !arm)))
776 /* ring doorbell for number popped */
779 bf_set(lpfc_if6_cq_doorbell_arm, &doorbell, 1);
780 bf_set(lpfc_if6_cq_doorbell_num_released, &doorbell, count);
781 bf_set(lpfc_if6_cq_doorbell_cqid, &doorbell, q->queue_id);
782 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
786 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
788 * This routine will copy the contents of @wqe to the next available entry on
789 * the @q. This function will then ring the Receive Queue Doorbell to signal the
790 * HBA to start processing the Receive Queue Entry. This function returns the
791 * index that the rqe was copied to if successful. If no entries are available
792 * on @q then this function will return -ENOMEM.
793 * The caller is expected to hold the hbalock when calling this routine.
796 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
797 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
799 struct lpfc_rqe *temp_hrqe;
800 struct lpfc_rqe *temp_drqe;
801 struct lpfc_register doorbell;
805 /* sanity check on queue memory */
806 if (unlikely(!hq) || unlikely(!dq))
808 hq_put_index = hq->host_index;
809 dq_put_index = dq->host_index;
810 temp_hrqe = lpfc_sli4_qe(hq, hq_put_index);
811 temp_drqe = lpfc_sli4_qe(dq, dq_put_index);
813 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
815 if (hq_put_index != dq_put_index)
817 /* If the host has not yet processed the next entry then we are done */
818 if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index)
820 lpfc_sli4_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
821 lpfc_sli4_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
823 /* Update the host index to point to the next slot */
824 hq->host_index = ((hq_put_index + 1) % hq->entry_count);
825 dq->host_index = ((dq_put_index + 1) % dq->entry_count);
828 /* Ring The Header Receive Queue Doorbell */
829 if (!(hq->host_index % hq->notify_interval)) {
831 if (hq->db_format == LPFC_DB_RING_FORMAT) {
832 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
833 hq->notify_interval);
834 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
835 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
836 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
837 hq->notify_interval);
838 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
840 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
844 writel(doorbell.word0, hq->db_regaddr);
850 * lpfc_sli4_rq_release - Updates internal hba index for RQ
852 * This routine will update the HBA index of a queue to reflect consumption of
853 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
854 * consumed an entry the host calls this function to update the queue's
855 * internal pointers. This routine returns the number of entries that were
856 * consumed by the HBA.
859 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
861 /* sanity check on queue memory */
862 if (unlikely(!hq) || unlikely(!dq))
865 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
867 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
868 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
873 * lpfc_cmd_iocb - Get next command iocb entry in the ring
874 * @phba: Pointer to HBA context object.
875 * @pring: Pointer to driver SLI ring object.
877 * This function returns pointer to next command iocb entry
878 * in the command ring. The caller must hold hbalock to prevent
879 * other threads consume the next command iocb.
880 * SLI-2/SLI-3 provide different sized iocbs.
882 static inline IOCB_t *
883 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
885 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
886 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
890 * lpfc_resp_iocb - Get next response iocb entry in the ring
891 * @phba: Pointer to HBA context object.
892 * @pring: Pointer to driver SLI ring object.
894 * This function returns pointer to next response iocb entry
895 * in the response ring. The caller must hold hbalock to make sure
896 * that no other thread consume the next response iocb.
897 * SLI-2/SLI-3 provide different sized iocbs.
899 static inline IOCB_t *
900 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
902 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
903 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
907 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
908 * @phba: Pointer to HBA context object.
910 * This function is called with hbalock held. This function
911 * allocates a new driver iocb object from the iocb pool. If the
912 * allocation is successful, it returns pointer to the newly
913 * allocated iocb object else it returns NULL.
916 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
918 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
919 struct lpfc_iocbq * iocbq = NULL;
921 lockdep_assert_held(&phba->hbalock);
923 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
926 if (phba->iocb_cnt > phba->iocb_max)
927 phba->iocb_max = phba->iocb_cnt;
932 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
933 * @phba: Pointer to HBA context object.
934 * @xritag: XRI value.
936 * This function clears the sglq pointer from the array of active
937 * sglq's. The xritag that is passed in is used to index into the
938 * array. Before the xritag can be used it needs to be adjusted
939 * by subtracting the xribase.
941 * Returns sglq ponter = success, NULL = Failure.
944 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
946 struct lpfc_sglq *sglq;
948 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
949 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
954 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
955 * @phba: Pointer to HBA context object.
956 * @xritag: XRI value.
958 * This function returns the sglq pointer from the array of active
959 * sglq's. The xritag that is passed in is used to index into the
960 * array. Before the xritag can be used it needs to be adjusted
961 * by subtracting the xribase.
963 * Returns sglq ponter = success, NULL = Failure.
966 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
968 struct lpfc_sglq *sglq;
970 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
975 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
976 * @phba: Pointer to HBA context object.
977 * @xritag: xri used in this exchange.
978 * @rrq: The RRQ to be cleared.
982 lpfc_clr_rrq_active(struct lpfc_hba *phba,
984 struct lpfc_node_rrq *rrq)
986 struct lpfc_nodelist *ndlp = NULL;
988 /* Lookup did to verify if did is still active on this vport */
990 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
995 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
998 rrq->rrq_stop_time = 0;
1001 mempool_free(rrq, phba->rrq_pool);
1005 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
1006 * @phba: Pointer to HBA context object.
1008 * This function is called with hbalock held. This function
1009 * Checks if stop_time (ratov from setting rrq active) has
1010 * been reached, if it has and the send_rrq flag is set then
1011 * it will call lpfc_send_rrq. If the send_rrq flag is not set
1012 * then it will just call the routine to clear the rrq and
1013 * free the rrq resource.
1014 * The timer is set to the next rrq that is going to expire before
1015 * leaving the routine.
1019 lpfc_handle_rrq_active(struct lpfc_hba *phba)
1021 struct lpfc_node_rrq *rrq;
1022 struct lpfc_node_rrq *nextrrq;
1023 unsigned long next_time;
1024 unsigned long iflags;
1025 LIST_HEAD(send_rrq);
1027 spin_lock_irqsave(&phba->hbalock, iflags);
1028 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1029 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
1030 list_for_each_entry_safe(rrq, nextrrq,
1031 &phba->active_rrq_list, list) {
1032 if (time_after(jiffies, rrq->rrq_stop_time))
1033 list_move(&rrq->list, &send_rrq);
1034 else if (time_before(rrq->rrq_stop_time, next_time))
1035 next_time = rrq->rrq_stop_time;
1037 spin_unlock_irqrestore(&phba->hbalock, iflags);
1038 if ((!list_empty(&phba->active_rrq_list)) &&
1039 (!(phba->pport->load_flag & FC_UNLOADING)))
1040 mod_timer(&phba->rrq_tmr, next_time);
1041 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
1042 list_del(&rrq->list);
1043 if (!rrq->send_rrq) {
1044 /* this call will free the rrq */
1045 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1046 } else if (lpfc_send_rrq(phba, rrq)) {
1047 /* if we send the rrq then the completion handler
1048 * will clear the bit in the xribitmap.
1050 lpfc_clr_rrq_active(phba, rrq->xritag,
1057 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
1058 * @vport: Pointer to vport context object.
1059 * @xri: The xri used in the exchange.
1060 * @did: The targets DID for this exchange.
1062 * returns NULL = rrq not found in the phba->active_rrq_list.
1063 * rrq = rrq for this xri and target.
1065 struct lpfc_node_rrq *
1066 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
1068 struct lpfc_hba *phba = vport->phba;
1069 struct lpfc_node_rrq *rrq;
1070 struct lpfc_node_rrq *nextrrq;
1071 unsigned long iflags;
1073 if (phba->sli_rev != LPFC_SLI_REV4)
1075 spin_lock_irqsave(&phba->hbalock, iflags);
1076 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
1077 if (rrq->vport == vport && rrq->xritag == xri &&
1078 rrq->nlp_DID == did){
1079 list_del(&rrq->list);
1080 spin_unlock_irqrestore(&phba->hbalock, iflags);
1084 spin_unlock_irqrestore(&phba->hbalock, iflags);
1089 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
1090 * @vport: Pointer to vport context object.
1091 * @ndlp: Pointer to the lpfc_node_list structure.
1092 * If ndlp is NULL Remove all active RRQs for this vport from the
1093 * phba->active_rrq_list and clear the rrq.
1094 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
1097 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1100 struct lpfc_hba *phba = vport->phba;
1101 struct lpfc_node_rrq *rrq;
1102 struct lpfc_node_rrq *nextrrq;
1103 unsigned long iflags;
1104 LIST_HEAD(rrq_list);
1106 if (phba->sli_rev != LPFC_SLI_REV4)
1109 lpfc_sli4_vport_delete_els_xri_aborted(vport);
1110 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
1112 spin_lock_irqsave(&phba->hbalock, iflags);
1113 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
1114 if (rrq->vport != vport)
1117 if (!ndlp || ndlp == lpfc_findnode_did(vport, rrq->nlp_DID))
1118 list_move(&rrq->list, &rrq_list);
1121 spin_unlock_irqrestore(&phba->hbalock, iflags);
1123 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
1124 list_del(&rrq->list);
1125 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1130 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
1131 * @phba: Pointer to HBA context object.
1132 * @ndlp: Targets nodelist pointer for this exchange.
1133 * @xritag: the xri in the bitmap to test.
1135 * This function returns:
1136 * 0 = rrq not active for this xri
1137 * 1 = rrq is valid for this xri.
1140 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1145 if (!ndlp->active_rrqs_xri_bitmap)
1147 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1154 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
1155 * @phba: Pointer to HBA context object.
1156 * @ndlp: nodelist pointer for this target.
1157 * @xritag: xri used in this exchange.
1158 * @rxid: Remote Exchange ID.
1159 * @send_rrq: Flag used to determine if we should send rrq els cmd.
1161 * This function takes the hbalock.
1162 * The active bit is always set in the active rrq xri_bitmap even
1163 * if there is no slot avaiable for the other rrq information.
1165 * returns 0 rrq actived for this xri
1166 * < 0 No memory or invalid ndlp.
1169 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1170 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
1172 unsigned long iflags;
1173 struct lpfc_node_rrq *rrq;
1179 if (!phba->cfg_enable_rrq)
1182 spin_lock_irqsave(&phba->hbalock, iflags);
1183 if (phba->pport->load_flag & FC_UNLOADING) {
1184 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1188 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
1191 if (!ndlp->active_rrqs_xri_bitmap)
1194 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1197 spin_unlock_irqrestore(&phba->hbalock, iflags);
1198 rrq = mempool_alloc(phba->rrq_pool, GFP_ATOMIC);
1200 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1201 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
1202 " DID:0x%x Send:%d\n",
1203 xritag, rxid, ndlp->nlp_DID, send_rrq);
1206 if (phba->cfg_enable_rrq == 1)
1207 rrq->send_rrq = send_rrq;
1210 rrq->xritag = xritag;
1211 rrq->rrq_stop_time = jiffies +
1212 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
1213 rrq->nlp_DID = ndlp->nlp_DID;
1214 rrq->vport = ndlp->vport;
1216 spin_lock_irqsave(&phba->hbalock, iflags);
1217 empty = list_empty(&phba->active_rrq_list);
1218 list_add_tail(&rrq->list, &phba->active_rrq_list);
1219 phba->hba_flag |= HBA_RRQ_ACTIVE;
1221 lpfc_worker_wake_up(phba);
1222 spin_unlock_irqrestore(&phba->hbalock, iflags);
1225 spin_unlock_irqrestore(&phba->hbalock, iflags);
1226 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1227 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
1228 " DID:0x%x Send:%d\n",
1229 xritag, rxid, ndlp->nlp_DID, send_rrq);
1234 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
1235 * @phba: Pointer to HBA context object.
1236 * @piocbq: Pointer to the iocbq.
1238 * The driver calls this function with either the nvme ls ring lock
1239 * or the fc els ring lock held depending on the iocb usage. This function
1240 * gets a new driver sglq object from the sglq list. If the list is not empty
1241 * then it is successful, it returns pointer to the newly allocated sglq
1242 * object else it returns NULL.
1244 static struct lpfc_sglq *
1245 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1247 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
1248 struct lpfc_sglq *sglq = NULL;
1249 struct lpfc_sglq *start_sglq = NULL;
1250 struct lpfc_io_buf *lpfc_cmd;
1251 struct lpfc_nodelist *ndlp;
1255 cmnd = get_job_cmnd(phba, piocbq);
1257 if (piocbq->cmd_flag & LPFC_IO_FCP) {
1258 lpfc_cmd = piocbq->io_buf;
1259 ndlp = lpfc_cmd->rdata->pnode;
1260 } else if ((cmnd == CMD_GEN_REQUEST64_CR) &&
1261 !(piocbq->cmd_flag & LPFC_IO_LIBDFC)) {
1262 ndlp = piocbq->ndlp;
1263 } else if (piocbq->cmd_flag & LPFC_IO_LIBDFC) {
1264 if (piocbq->cmd_flag & LPFC_IO_LOOPBACK)
1267 ndlp = piocbq->ndlp;
1269 ndlp = piocbq->ndlp;
1272 spin_lock(&phba->sli4_hba.sgl_list_lock);
1273 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
1278 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
1279 test_bit(sglq->sli4_lxritag,
1280 ndlp->active_rrqs_xri_bitmap)) {
1281 /* This xri has an rrq outstanding for this DID.
1282 * put it back in the list and get another xri.
1284 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1286 list_remove_head(lpfc_els_sgl_list, sglq,
1287 struct lpfc_sglq, list);
1288 if (sglq == start_sglq) {
1289 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1297 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1298 sglq->state = SGL_ALLOCATED;
1300 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1305 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
1306 * @phba: Pointer to HBA context object.
1307 * @piocbq: Pointer to the iocbq.
1309 * This function is called with the sgl_list lock held. This function
1310 * gets a new driver sglq object from the sglq list. If the
1311 * list is not empty then it is successful, it returns pointer to the newly
1312 * allocated sglq object else it returns NULL.
1315 __lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1317 struct list_head *lpfc_nvmet_sgl_list;
1318 struct lpfc_sglq *sglq = NULL;
1320 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1322 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1324 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1327 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1328 sglq->state = SGL_ALLOCATED;
1333 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
1334 * @phba: Pointer to HBA context object.
1336 * This function is called with no lock held. This function
1337 * allocates a new driver iocb object from the iocb pool. If the
1338 * allocation is successful, it returns pointer to the newly
1339 * allocated iocb object else it returns NULL.
1342 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1344 struct lpfc_iocbq * iocbq = NULL;
1345 unsigned long iflags;
1347 spin_lock_irqsave(&phba->hbalock, iflags);
1348 iocbq = __lpfc_sli_get_iocbq(phba);
1349 spin_unlock_irqrestore(&phba->hbalock, iflags);
1354 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1355 * @phba: Pointer to HBA context object.
1356 * @iocbq: Pointer to driver iocb object.
1358 * This function is called to release the driver iocb object
1359 * to the iocb pool. The iotag in the iocb object
1360 * does not change for each use of the iocb object. This function
1361 * clears all other fields of the iocb object when it is freed.
1362 * The sqlq structure that holds the xritag and phys and virtual
1363 * mappings for the scatter gather list is retrieved from the
1364 * active array of sglq. The get of the sglq pointer also clears
1365 * the entry in the array. If the status of the IO indiactes that
1366 * this IO was aborted then the sglq entry it put on the
1367 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1368 * IO has good status or fails for any other reason then the sglq
1369 * entry is added to the free list (lpfc_els_sgl_list). The hbalock is
1370 * asserted held in the code path calling this routine.
1373 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1375 struct lpfc_sglq *sglq;
1376 unsigned long iflag = 0;
1377 struct lpfc_sli_ring *pring;
1379 if (iocbq->sli4_xritag == NO_XRI)
1382 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1386 if (iocbq->cmd_flag & LPFC_IO_NVMET) {
1387 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1389 sglq->state = SGL_FREED;
1391 list_add_tail(&sglq->list,
1392 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1393 spin_unlock_irqrestore(
1394 &phba->sli4_hba.sgl_list_lock, iflag);
1398 if ((iocbq->cmd_flag & LPFC_EXCHANGE_BUSY) &&
1399 (!(unlikely(pci_channel_offline(phba->pcidev)))) &&
1400 sglq->state != SGL_XRI_ABORTED) {
1401 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1404 /* Check if we can get a reference on ndlp */
1405 if (sglq->ndlp && !lpfc_nlp_get(sglq->ndlp))
1408 list_add(&sglq->list,
1409 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1410 spin_unlock_irqrestore(
1411 &phba->sli4_hba.sgl_list_lock, iflag);
1413 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1415 sglq->state = SGL_FREED;
1417 list_add_tail(&sglq->list,
1418 &phba->sli4_hba.lpfc_els_sgl_list);
1419 spin_unlock_irqrestore(
1420 &phba->sli4_hba.sgl_list_lock, iflag);
1421 pring = lpfc_phba_elsring(phba);
1422 /* Check if TXQ queue needs to be serviced */
1423 if (pring && (!list_empty(&pring->txq)))
1424 lpfc_worker_wake_up(phba);
1430 * Clean all volatile data fields, preserve iotag and node struct.
1432 memset_startat(iocbq, 0, wqe);
1433 iocbq->sli4_lxritag = NO_XRI;
1434 iocbq->sli4_xritag = NO_XRI;
1435 iocbq->cmd_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET | LPFC_IO_CMF |
1437 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1442 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1443 * @phba: Pointer to HBA context object.
1444 * @iocbq: Pointer to driver iocb object.
1446 * This function is called to release the driver iocb object to the
1447 * iocb pool. The iotag in the iocb object does not change for each
1448 * use of the iocb object. This function clears all other fields of
1449 * the iocb object when it is freed. The hbalock is asserted held in
1450 * the code path calling this routine.
1453 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1457 * Clean all volatile data fields, preserve iotag and node struct.
1459 memset_startat(iocbq, 0, iocb);
1460 iocbq->sli4_xritag = NO_XRI;
1461 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1465 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1466 * @phba: Pointer to HBA context object.
1467 * @iocbq: Pointer to driver iocb object.
1469 * This function is called with hbalock held to release driver
1470 * iocb object to the iocb pool. The iotag in the iocb object
1471 * does not change for each use of the iocb object. This function
1472 * clears all other fields of the iocb object when it is freed.
1475 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1477 lockdep_assert_held(&phba->hbalock);
1479 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1484 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1485 * @phba: Pointer to HBA context object.
1486 * @iocbq: Pointer to driver iocb object.
1488 * This function is called with no lock held to release the iocb to
1492 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1494 unsigned long iflags;
1497 * Clean all volatile data fields, preserve iotag and node struct.
1499 spin_lock_irqsave(&phba->hbalock, iflags);
1500 __lpfc_sli_release_iocbq(phba, iocbq);
1501 spin_unlock_irqrestore(&phba->hbalock, iflags);
1505 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1506 * @phba: Pointer to HBA context object.
1507 * @iocblist: List of IOCBs.
1508 * @ulpstatus: ULP status in IOCB command field.
1509 * @ulpWord4: ULP word-4 in IOCB command field.
1511 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1512 * on the list by invoking the complete callback function associated with the
1513 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1517 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1518 uint32_t ulpstatus, uint32_t ulpWord4)
1520 struct lpfc_iocbq *piocb;
1522 while (!list_empty(iocblist)) {
1523 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1524 if (piocb->cmd_cmpl) {
1525 if (piocb->cmd_flag & LPFC_IO_NVME) {
1526 lpfc_nvme_cancel_iocb(phba, piocb,
1527 ulpstatus, ulpWord4);
1529 if (phba->sli_rev == LPFC_SLI_REV4) {
1530 bf_set(lpfc_wcqe_c_status,
1531 &piocb->wcqe_cmpl, ulpstatus);
1532 piocb->wcqe_cmpl.parameter = ulpWord4;
1534 piocb->iocb.ulpStatus = ulpstatus;
1535 piocb->iocb.un.ulpWord[4] = ulpWord4;
1537 (piocb->cmd_cmpl) (phba, piocb, piocb);
1540 lpfc_sli_release_iocbq(phba, piocb);
1547 * lpfc_sli_iocb_cmd_type - Get the iocb type
1548 * @iocb_cmnd: iocb command code.
1550 * This function is called by ring event handler function to get the iocb type.
1551 * This function translates the iocb command to an iocb command type used to
1552 * decide the final disposition of each completed IOCB.
1553 * The function returns
1554 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1555 * LPFC_SOL_IOCB if it is a solicited iocb completion
1556 * LPFC_ABORT_IOCB if it is an abort iocb
1557 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1559 * The caller is not required to hold any lock.
1561 static lpfc_iocb_type
1562 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1564 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1566 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1569 switch (iocb_cmnd) {
1570 case CMD_XMIT_SEQUENCE_CR:
1571 case CMD_XMIT_SEQUENCE_CX:
1572 case CMD_XMIT_BCAST_CN:
1573 case CMD_XMIT_BCAST_CX:
1574 case CMD_ELS_REQUEST_CR:
1575 case CMD_ELS_REQUEST_CX:
1576 case CMD_CREATE_XRI_CR:
1577 case CMD_CREATE_XRI_CX:
1578 case CMD_GET_RPI_CN:
1579 case CMD_XMIT_ELS_RSP_CX:
1580 case CMD_GET_RPI_CR:
1581 case CMD_FCP_IWRITE_CR:
1582 case CMD_FCP_IWRITE_CX:
1583 case CMD_FCP_IREAD_CR:
1584 case CMD_FCP_IREAD_CX:
1585 case CMD_FCP_ICMND_CR:
1586 case CMD_FCP_ICMND_CX:
1587 case CMD_FCP_TSEND_CX:
1588 case CMD_FCP_TRSP_CX:
1589 case CMD_FCP_TRECEIVE_CX:
1590 case CMD_FCP_AUTO_TRSP_CX:
1591 case CMD_ADAPTER_MSG:
1592 case CMD_ADAPTER_DUMP:
1593 case CMD_XMIT_SEQUENCE64_CR:
1594 case CMD_XMIT_SEQUENCE64_CX:
1595 case CMD_XMIT_BCAST64_CN:
1596 case CMD_XMIT_BCAST64_CX:
1597 case CMD_ELS_REQUEST64_CR:
1598 case CMD_ELS_REQUEST64_CX:
1599 case CMD_FCP_IWRITE64_CR:
1600 case CMD_FCP_IWRITE64_CX:
1601 case CMD_FCP_IREAD64_CR:
1602 case CMD_FCP_IREAD64_CX:
1603 case CMD_FCP_ICMND64_CR:
1604 case CMD_FCP_ICMND64_CX:
1605 case CMD_FCP_TSEND64_CX:
1606 case CMD_FCP_TRSP64_CX:
1607 case CMD_FCP_TRECEIVE64_CX:
1608 case CMD_GEN_REQUEST64_CR:
1609 case CMD_GEN_REQUEST64_CX:
1610 case CMD_XMIT_ELS_RSP64_CX:
1611 case DSSCMD_IWRITE64_CR:
1612 case DSSCMD_IWRITE64_CX:
1613 case DSSCMD_IREAD64_CR:
1614 case DSSCMD_IREAD64_CX:
1615 case CMD_SEND_FRAME:
1616 type = LPFC_SOL_IOCB;
1618 case CMD_ABORT_XRI_CN:
1619 case CMD_ABORT_XRI_CX:
1620 case CMD_CLOSE_XRI_CN:
1621 case CMD_CLOSE_XRI_CX:
1622 case CMD_XRI_ABORTED_CX:
1623 case CMD_ABORT_MXRI64_CN:
1624 case CMD_XMIT_BLS_RSP64_CX:
1625 type = LPFC_ABORT_IOCB;
1627 case CMD_RCV_SEQUENCE_CX:
1628 case CMD_RCV_ELS_REQ_CX:
1629 case CMD_RCV_SEQUENCE64_CX:
1630 case CMD_RCV_ELS_REQ64_CX:
1631 case CMD_ASYNC_STATUS:
1632 case CMD_IOCB_RCV_SEQ64_CX:
1633 case CMD_IOCB_RCV_ELS64_CX:
1634 case CMD_IOCB_RCV_CONT64_CX:
1635 case CMD_IOCB_RET_XRI64_CX:
1636 type = LPFC_UNSOL_IOCB;
1638 case CMD_IOCB_XMIT_MSEQ64_CR:
1639 case CMD_IOCB_XMIT_MSEQ64_CX:
1640 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1641 case CMD_IOCB_RCV_ELS_LIST64_CX:
1642 case CMD_IOCB_CLOSE_EXTENDED_CN:
1643 case CMD_IOCB_ABORT_EXTENDED_CN:
1644 case CMD_IOCB_RET_HBQE64_CN:
1645 case CMD_IOCB_FCP_IBIDIR64_CR:
1646 case CMD_IOCB_FCP_IBIDIR64_CX:
1647 case CMD_IOCB_FCP_ITASKMGT64_CX:
1648 case CMD_IOCB_LOGENTRY_CN:
1649 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1650 printk("%s - Unhandled SLI-3 Command x%x\n",
1651 __func__, iocb_cmnd);
1652 type = LPFC_UNKNOWN_IOCB;
1655 type = LPFC_UNKNOWN_IOCB;
1663 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1664 * @phba: Pointer to HBA context object.
1666 * This function is called from SLI initialization code
1667 * to configure every ring of the HBA's SLI interface. The
1668 * caller is not required to hold any lock. This function issues
1669 * a config_ring mailbox command for each ring.
1670 * This function returns zero if successful else returns a negative
1674 lpfc_sli_ring_map(struct lpfc_hba *phba)
1676 struct lpfc_sli *psli = &phba->sli;
1681 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1685 phba->link_state = LPFC_INIT_MBX_CMDS;
1686 for (i = 0; i < psli->num_rings; i++) {
1687 lpfc_config_ring(phba, i, pmb);
1688 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1689 if (rc != MBX_SUCCESS) {
1690 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1691 "0446 Adapter failed to init (%d), "
1692 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1694 rc, pmbox->mbxCommand,
1695 pmbox->mbxStatus, i);
1696 phba->link_state = LPFC_HBA_ERROR;
1701 mempool_free(pmb, phba->mbox_mem_pool);
1706 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1707 * @phba: Pointer to HBA context object.
1708 * @pring: Pointer to driver SLI ring object.
1709 * @piocb: Pointer to the driver iocb object.
1711 * The driver calls this function with the hbalock held for SLI3 ports or
1712 * the ring lock held for SLI4 ports. The function adds the
1713 * new iocb to txcmplq of the given ring. This function always returns
1714 * 0. If this function is called for ELS ring, this function checks if
1715 * there is a vport associated with the ELS command. This function also
1716 * starts els_tmofunc timer if this is an ELS command.
1719 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1720 struct lpfc_iocbq *piocb)
1722 u32 ulp_command = 0;
1725 ulp_command = get_job_cmnd(phba, piocb);
1727 list_add_tail(&piocb->list, &pring->txcmplq);
1728 piocb->cmd_flag |= LPFC_IO_ON_TXCMPLQ;
1729 pring->txcmplq_cnt++;
1730 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1731 (ulp_command != CMD_ABORT_XRI_WQE) &&
1732 (ulp_command != CMD_ABORT_XRI_CN) &&
1733 (ulp_command != CMD_CLOSE_XRI_CN)) {
1734 BUG_ON(!piocb->vport);
1735 if (!(piocb->vport->load_flag & FC_UNLOADING))
1736 mod_timer(&piocb->vport->els_tmofunc,
1738 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1745 * lpfc_sli_ringtx_get - Get first element of the txq
1746 * @phba: Pointer to HBA context object.
1747 * @pring: Pointer to driver SLI ring object.
1749 * This function is called with hbalock held to get next
1750 * iocb in txq of the given ring. If there is any iocb in
1751 * the txq, the function returns first iocb in the list after
1752 * removing the iocb from the list, else it returns NULL.
1755 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1757 struct lpfc_iocbq *cmd_iocb;
1759 lockdep_assert_held(&phba->hbalock);
1761 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1766 * lpfc_cmf_sync_cmpl - Process a CMF_SYNC_WQE cmpl
1767 * @phba: Pointer to HBA context object.
1768 * @cmdiocb: Pointer to driver command iocb object.
1769 * @rspiocb: Pointer to driver response iocb object.
1771 * This routine will inform the driver of any BW adjustments we need
1772 * to make. These changes will be picked up during the next CMF
1773 * timer interrupt. In addition, any BW changes will be logged
1774 * with LOG_CGN_MGMT.
1777 lpfc_cmf_sync_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1778 struct lpfc_iocbq *rspiocb)
1780 union lpfc_wqe128 *wqe;
1781 uint32_t status, info;
1782 struct lpfc_wcqe_complete *wcqe = &rspiocb->wcqe_cmpl;
1783 uint64_t bw, bwdif, slop;
1784 uint64_t pcent, bwpcent;
1785 int asig, afpin, sigcnt, fpincnt;
1786 int wsigmax, wfpinmax, cg, tdp;
1789 /* First check for error */
1790 status = bf_get(lpfc_wcqe_c_status, wcqe);
1792 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1793 "6211 CMF_SYNC_WQE Error "
1794 "req_tag x%x status x%x hwstatus x%x "
1795 "tdatap x%x parm x%x\n",
1796 bf_get(lpfc_wcqe_c_request_tag, wcqe),
1797 bf_get(lpfc_wcqe_c_status, wcqe),
1798 bf_get(lpfc_wcqe_c_hw_status, wcqe),
1799 wcqe->total_data_placed,
1804 /* Gather congestion information on a successful cmpl */
1805 info = wcqe->parameter;
1806 phba->cmf_active_info = info;
1808 /* See if firmware info count is valid or has changed */
1809 if (info > LPFC_MAX_CMF_INFO || phba->cmf_info_per_interval == info)
1812 phba->cmf_info_per_interval = info;
1814 tdp = bf_get(lpfc_wcqe_c_cmf_bw, wcqe);
1815 cg = bf_get(lpfc_wcqe_c_cmf_cg, wcqe);
1817 /* Get BW requirement from firmware */
1818 bw = (uint64_t)tdp * LPFC_CMF_BLK_SIZE;
1820 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1821 "6212 CMF_SYNC_WQE x%x: NULL bw\n",
1822 bf_get(lpfc_wcqe_c_request_tag, wcqe));
1826 /* Gather information needed for logging if a BW change is required */
1827 wqe = &cmdiocb->wqe;
1828 asig = bf_get(cmf_sync_asig, &wqe->cmf_sync);
1829 afpin = bf_get(cmf_sync_afpin, &wqe->cmf_sync);
1830 fpincnt = bf_get(cmf_sync_wfpincnt, &wqe->cmf_sync);
1831 sigcnt = bf_get(cmf_sync_wsigcnt, &wqe->cmf_sync);
1832 if (phba->cmf_max_bytes_per_interval != bw ||
1833 (asig || afpin || sigcnt || fpincnt)) {
1834 /* Are we increasing or decreasing BW */
1835 if (phba->cmf_max_bytes_per_interval < bw) {
1836 bwdif = bw - phba->cmf_max_bytes_per_interval;
1839 bwdif = phba->cmf_max_bytes_per_interval - bw;
1843 /* What is the change percentage */
1844 slop = div_u64(phba->cmf_link_byte_count, 200); /*For rounding*/
1845 pcent = div64_u64(bwdif * 100 + slop,
1846 phba->cmf_link_byte_count);
1847 bwpcent = div64_u64(bw * 100 + slop,
1848 phba->cmf_link_byte_count);
1849 /* Because of bytes adjustment due to shorter timer in
1850 * lpfc_cmf_timer() the cmf_link_byte_count can be shorter and
1851 * may seem like BW is above 100%.
1856 if (phba->cmf_max_bytes_per_interval < bw &&
1858 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1859 "6208 Congestion bandwidth "
1860 "limits removed\n");
1861 else if ((phba->cmf_max_bytes_per_interval > bw) &&
1862 ((bwpcent + pcent) <= 100) && ((bwpcent + pcent) > 95))
1863 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1864 "6209 Congestion bandwidth "
1865 "limits in effect\n");
1868 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1869 "6237 BW Threshold %lld%% (%lld): "
1870 "%lld%% %s: Signal Alarm: cg:%d "
1872 bwpcent, bw, pcent, s, cg,
1873 phba->cmf_active_info);
1875 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1876 "6238 BW Threshold %lld%% (%lld): "
1877 "%lld%% %s: FPIN Alarm: cg:%d "
1879 bwpcent, bw, pcent, s, cg,
1880 phba->cmf_active_info);
1881 } else if (sigcnt) {
1882 wsigmax = bf_get(cmf_sync_wsigmax, &wqe->cmf_sync);
1883 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1884 "6239 BW Threshold %lld%% (%lld): "
1885 "%lld%% %s: Signal Warning: "
1886 "Cnt %d Max %d: cg:%d Info:%u\n",
1887 bwpcent, bw, pcent, s, sigcnt,
1888 wsigmax, cg, phba->cmf_active_info);
1889 } else if (fpincnt) {
1890 wfpinmax = bf_get(cmf_sync_wfpinmax, &wqe->cmf_sync);
1891 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1892 "6240 BW Threshold %lld%% (%lld): "
1893 "%lld%% %s: FPIN Warning: "
1894 "Cnt %d Max %d: cg:%d Info:%u\n",
1895 bwpcent, bw, pcent, s, fpincnt,
1896 wfpinmax, cg, phba->cmf_active_info);
1898 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1899 "6241 BW Threshold %lld%% (%lld): "
1900 "CMF %lld%% %s: cg:%d Info:%u\n",
1901 bwpcent, bw, pcent, s, cg,
1902 phba->cmf_active_info);
1905 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1906 "6246 Info Threshold %u\n", info);
1909 /* Save BW change to be picked up during next timer interrupt */
1910 phba->cmf_last_sync_bw = bw;
1912 lpfc_sli_release_iocbq(phba, cmdiocb);
1916 * lpfc_issue_cmf_sync_wqe - Issue a CMF_SYNC_WQE
1917 * @phba: Pointer to HBA context object.
1918 * @ms: ms to set in WQE interval, 0 means use init op
1919 * @total: Total rcv bytes for this interval
1921 * This routine is called every CMF timer interrupt. Its purpose is
1922 * to issue a CMF_SYNC_WQE to the firmware to inform it of any events
1923 * that may indicate we have congestion (FPINs or Signals). Upon
1924 * completion, the firmware will indicate any BW restrictions the
1925 * driver may need to take.
1928 lpfc_issue_cmf_sync_wqe(struct lpfc_hba *phba, u32 ms, u64 total)
1930 union lpfc_wqe128 *wqe;
1931 struct lpfc_iocbq *sync_buf;
1932 unsigned long iflags;
1934 u32 atot, wtot, max;
1935 u8 warn_sync_period = 0;
1937 /* First address any alarm / warning activity */
1938 atot = atomic_xchg(&phba->cgn_sync_alarm_cnt, 0);
1939 wtot = atomic_xchg(&phba->cgn_sync_warn_cnt, 0);
1941 /* ONLY Managed mode will send the CMF_SYNC_WQE to the HBA */
1942 if (phba->cmf_active_mode != LPFC_CFG_MANAGED ||
1943 phba->link_state == LPFC_LINK_DOWN)
1946 spin_lock_irqsave(&phba->hbalock, iflags);
1947 sync_buf = __lpfc_sli_get_iocbq(phba);
1949 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
1950 "6244 No available WQEs for CMF_SYNC_WQE\n");
1955 wqe = &sync_buf->wqe;
1957 /* WQEs are reused. Clear stale data and set key fields to zero */
1958 memset(wqe, 0, sizeof(*wqe));
1960 /* If this is the very first CMF_SYNC_WQE, issue an init operation */
1962 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
1963 "6441 CMF Init %d - CMF_SYNC_WQE\n",
1965 bf_set(cmf_sync_op, &wqe->cmf_sync, 1); /* 1=init */
1966 bf_set(cmf_sync_interval, &wqe->cmf_sync, LPFC_CMF_INTERVAL);
1970 bf_set(cmf_sync_op, &wqe->cmf_sync, 0); /* 0=recalc */
1971 bf_set(cmf_sync_interval, &wqe->cmf_sync, ms);
1973 /* Check for alarms / warnings */
1975 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
1976 /* We hit an Signal alarm condition */
1977 bf_set(cmf_sync_asig, &wqe->cmf_sync, 1);
1979 /* We hit a FPIN alarm condition */
1980 bf_set(cmf_sync_afpin, &wqe->cmf_sync, 1);
1983 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
1984 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
1985 /* We hit an Signal warning condition */
1986 max = LPFC_SEC_TO_MSEC / lpfc_fabric_cgn_frequency *
1987 lpfc_acqe_cgn_frequency;
1988 bf_set(cmf_sync_wsigmax, &wqe->cmf_sync, max);
1989 bf_set(cmf_sync_wsigcnt, &wqe->cmf_sync, wtot);
1990 warn_sync_period = lpfc_acqe_cgn_frequency;
1992 /* We hit a FPIN warning condition */
1993 bf_set(cmf_sync_wfpinmax, &wqe->cmf_sync, 1);
1994 bf_set(cmf_sync_wfpincnt, &wqe->cmf_sync, 1);
1995 if (phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ)
1997 LPFC_MSECS_TO_SECS(phba->cgn_fpin_frequency);
2001 /* Update total read blocks during previous timer interval */
2002 wqe->cmf_sync.read_bytes = (u32)(total / LPFC_CMF_BLK_SIZE);
2005 bf_set(cmf_sync_ver, &wqe->cmf_sync, LPFC_CMF_SYNC_VER);
2006 wqe->cmf_sync.event_tag = phba->fc_eventTag;
2007 bf_set(cmf_sync_cmnd, &wqe->cmf_sync, CMD_CMF_SYNC_WQE);
2009 /* Setup reqtag to match the wqe completion. */
2010 bf_set(cmf_sync_reqtag, &wqe->cmf_sync, sync_buf->iotag);
2012 bf_set(cmf_sync_qosd, &wqe->cmf_sync, 1);
2013 bf_set(cmf_sync_period, &wqe->cmf_sync, warn_sync_period);
2015 bf_set(cmf_sync_cmd_type, &wqe->cmf_sync, CMF_SYNC_COMMAND);
2016 bf_set(cmf_sync_wqec, &wqe->cmf_sync, 1);
2017 bf_set(cmf_sync_cqid, &wqe->cmf_sync, LPFC_WQE_CQ_ID_DEFAULT);
2019 sync_buf->vport = phba->pport;
2020 sync_buf->cmd_cmpl = lpfc_cmf_sync_cmpl;
2021 sync_buf->cmd_dmabuf = NULL;
2022 sync_buf->rsp_dmabuf = NULL;
2023 sync_buf->bpl_dmabuf = NULL;
2024 sync_buf->sli4_xritag = NO_XRI;
2026 sync_buf->cmd_flag |= LPFC_IO_CMF;
2027 ret_val = lpfc_sli4_issue_wqe(phba, &phba->sli4_hba.hdwq[0], sync_buf);
2029 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
2030 "6214 Cannot issue CMF_SYNC_WQE: x%x\n",
2032 __lpfc_sli_release_iocbq(phba, sync_buf);
2035 spin_unlock_irqrestore(&phba->hbalock, iflags);
2040 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
2041 * @phba: Pointer to HBA context object.
2042 * @pring: Pointer to driver SLI ring object.
2044 * This function is called with hbalock held and the caller must post the
2045 * iocb without releasing the lock. If the caller releases the lock,
2046 * iocb slot returned by the function is not guaranteed to be available.
2047 * The function returns pointer to the next available iocb slot if there
2048 * is available slot in the ring, else it returns NULL.
2049 * If the get index of the ring is ahead of the put index, the function
2050 * will post an error attention event to the worker thread to take the
2051 * HBA to offline state.
2054 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2056 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2057 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
2059 lockdep_assert_held(&phba->hbalock);
2061 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
2062 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
2063 pring->sli.sli3.next_cmdidx = 0;
2065 if (unlikely(pring->sli.sli3.local_getidx ==
2066 pring->sli.sli3.next_cmdidx)) {
2068 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
2070 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
2071 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2072 "0315 Ring %d issue: portCmdGet %d "
2073 "is bigger than cmd ring %d\n",
2075 pring->sli.sli3.local_getidx,
2078 phba->link_state = LPFC_HBA_ERROR;
2080 * All error attention handlers are posted to
2083 phba->work_ha |= HA_ERATT;
2084 phba->work_hs = HS_FFER3;
2086 lpfc_worker_wake_up(phba);
2091 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
2095 return lpfc_cmd_iocb(phba, pring);
2099 * lpfc_sli_next_iotag - Get an iotag for the iocb
2100 * @phba: Pointer to HBA context object.
2101 * @iocbq: Pointer to driver iocb object.
2103 * This function gets an iotag for the iocb. If there is no unused iotag and
2104 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
2105 * array and assigns a new iotag.
2106 * The function returns the allocated iotag if successful, else returns zero.
2107 * Zero is not a valid iotag.
2108 * The caller is not required to hold any lock.
2111 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
2113 struct lpfc_iocbq **new_arr;
2114 struct lpfc_iocbq **old_arr;
2116 struct lpfc_sli *psli = &phba->sli;
2119 spin_lock_irq(&phba->hbalock);
2120 iotag = psli->last_iotag;
2121 if(++iotag < psli->iocbq_lookup_len) {
2122 psli->last_iotag = iotag;
2123 psli->iocbq_lookup[iotag] = iocbq;
2124 spin_unlock_irq(&phba->hbalock);
2125 iocbq->iotag = iotag;
2127 } else if (psli->iocbq_lookup_len < (0xffff
2128 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
2129 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
2130 spin_unlock_irq(&phba->hbalock);
2131 new_arr = kcalloc(new_len, sizeof(struct lpfc_iocbq *),
2134 spin_lock_irq(&phba->hbalock);
2135 old_arr = psli->iocbq_lookup;
2136 if (new_len <= psli->iocbq_lookup_len) {
2137 /* highly unprobable case */
2139 iotag = psli->last_iotag;
2140 if(++iotag < psli->iocbq_lookup_len) {
2141 psli->last_iotag = iotag;
2142 psli->iocbq_lookup[iotag] = iocbq;
2143 spin_unlock_irq(&phba->hbalock);
2144 iocbq->iotag = iotag;
2147 spin_unlock_irq(&phba->hbalock);
2150 if (psli->iocbq_lookup)
2151 memcpy(new_arr, old_arr,
2152 ((psli->last_iotag + 1) *
2153 sizeof (struct lpfc_iocbq *)));
2154 psli->iocbq_lookup = new_arr;
2155 psli->iocbq_lookup_len = new_len;
2156 psli->last_iotag = iotag;
2157 psli->iocbq_lookup[iotag] = iocbq;
2158 spin_unlock_irq(&phba->hbalock);
2159 iocbq->iotag = iotag;
2164 spin_unlock_irq(&phba->hbalock);
2166 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2167 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
2174 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
2175 * @phba: Pointer to HBA context object.
2176 * @pring: Pointer to driver SLI ring object.
2177 * @iocb: Pointer to iocb slot in the ring.
2178 * @nextiocb: Pointer to driver iocb object which need to be
2179 * posted to firmware.
2181 * This function is called to post a new iocb to the firmware. This
2182 * function copies the new iocb to ring iocb slot and updates the
2183 * ring pointers. It adds the new iocb to txcmplq if there is
2184 * a completion call back for this iocb else the function will free the
2185 * iocb object. The hbalock is asserted held in the code path calling
2189 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2190 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
2195 nextiocb->iocb.ulpIoTag = (nextiocb->cmd_cmpl) ? nextiocb->iotag : 0;
2198 if (pring->ringno == LPFC_ELS_RING) {
2199 lpfc_debugfs_slow_ring_trc(phba,
2200 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2201 *(((uint32_t *) &nextiocb->iocb) + 4),
2202 *(((uint32_t *) &nextiocb->iocb) + 6),
2203 *(((uint32_t *) &nextiocb->iocb) + 7));
2207 * Issue iocb command to adapter
2209 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
2211 pring->stats.iocb_cmd++;
2214 * If there is no completion routine to call, we can release the
2215 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
2216 * that have no rsp ring completion, cmd_cmpl MUST be NULL.
2218 if (nextiocb->cmd_cmpl)
2219 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
2221 __lpfc_sli_release_iocbq(phba, nextiocb);
2224 * Let the HBA know what IOCB slot will be the next one the
2225 * driver will put a command into.
2227 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
2228 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
2232 * lpfc_sli_update_full_ring - Update the chip attention register
2233 * @phba: Pointer to HBA context object.
2234 * @pring: Pointer to driver SLI ring object.
2236 * The caller is not required to hold any lock for calling this function.
2237 * This function updates the chip attention bits for the ring to inform firmware
2238 * that there are pending work to be done for this ring and requests an
2239 * interrupt when there is space available in the ring. This function is
2240 * called when the driver is unable to post more iocbs to the ring due
2241 * to unavailability of space in the ring.
2244 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2246 int ringno = pring->ringno;
2248 pring->flag |= LPFC_CALL_RING_AVAILABLE;
2253 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
2254 * The HBA will tell us when an IOCB entry is available.
2256 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
2257 readl(phba->CAregaddr); /* flush */
2259 pring->stats.iocb_cmd_full++;
2263 * lpfc_sli_update_ring - Update chip attention register
2264 * @phba: Pointer to HBA context object.
2265 * @pring: Pointer to driver SLI ring object.
2267 * This function updates the chip attention register bit for the
2268 * given ring to inform HBA that there is more work to be done
2269 * in this ring. The caller is not required to hold any lock.
2272 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2274 int ringno = pring->ringno;
2277 * Tell the HBA that there is work to do in this ring.
2279 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
2281 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
2282 readl(phba->CAregaddr); /* flush */
2287 * lpfc_sli_resume_iocb - Process iocbs in the txq
2288 * @phba: Pointer to HBA context object.
2289 * @pring: Pointer to driver SLI ring object.
2291 * This function is called with hbalock held to post pending iocbs
2292 * in the txq to the firmware. This function is called when driver
2293 * detects space available in the ring.
2296 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2299 struct lpfc_iocbq *nextiocb;
2301 lockdep_assert_held(&phba->hbalock);
2305 * (a) there is anything on the txq to send
2307 * (c) link attention events can be processed (fcp ring only)
2308 * (d) IOCB processing is not blocked by the outstanding mbox command.
2311 if (lpfc_is_link_up(phba) &&
2312 (!list_empty(&pring->txq)) &&
2313 (pring->ringno != LPFC_FCP_RING ||
2314 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
2316 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
2317 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
2318 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
2321 lpfc_sli_update_ring(phba, pring);
2323 lpfc_sli_update_full_ring(phba, pring);
2330 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
2331 * @phba: Pointer to HBA context object.
2332 * @hbqno: HBQ number.
2334 * This function is called with hbalock held to get the next
2335 * available slot for the given HBQ. If there is free slot
2336 * available for the HBQ it will return pointer to the next available
2337 * HBQ entry else it will return NULL.
2339 static struct lpfc_hbq_entry *
2340 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
2342 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2344 lockdep_assert_held(&phba->hbalock);
2346 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
2347 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
2348 hbqp->next_hbqPutIdx = 0;
2350 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
2351 uint32_t raw_index = phba->hbq_get[hbqno];
2352 uint32_t getidx = le32_to_cpu(raw_index);
2354 hbqp->local_hbqGetIdx = getidx;
2356 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
2357 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2358 "1802 HBQ %d: local_hbqGetIdx "
2359 "%u is > than hbqp->entry_count %u\n",
2360 hbqno, hbqp->local_hbqGetIdx,
2363 phba->link_state = LPFC_HBA_ERROR;
2367 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
2371 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
2376 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
2377 * @phba: Pointer to HBA context object.
2379 * This function is called with no lock held to free all the
2380 * hbq buffers while uninitializing the SLI interface. It also
2381 * frees the HBQ buffers returned by the firmware but not yet
2382 * processed by the upper layers.
2385 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
2387 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
2388 struct hbq_dmabuf *hbq_buf;
2389 unsigned long flags;
2392 hbq_count = lpfc_sli_hbq_count();
2393 /* Return all memory used by all HBQs */
2394 spin_lock_irqsave(&phba->hbalock, flags);
2395 for (i = 0; i < hbq_count; ++i) {
2396 list_for_each_entry_safe(dmabuf, next_dmabuf,
2397 &phba->hbqs[i].hbq_buffer_list, list) {
2398 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
2399 list_del(&hbq_buf->dbuf.list);
2400 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
2402 phba->hbqs[i].buffer_count = 0;
2405 /* Mark the HBQs not in use */
2406 phba->hbq_in_use = 0;
2407 spin_unlock_irqrestore(&phba->hbalock, flags);
2411 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to 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
2417 * hbq buffer to the firmware. If the function finds an empty
2418 * slot in the HBQ, it will post the buffer. The function will return
2419 * pointer to the hbq entry if it successfully post the buffer
2420 * else it will return NULL.
2423 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
2424 struct hbq_dmabuf *hbq_buf)
2426 lockdep_assert_held(&phba->hbalock);
2427 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
2431 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
2432 * @phba: Pointer to HBA context object.
2433 * @hbqno: HBQ number.
2434 * @hbq_buf: Pointer to HBQ buffer.
2436 * This function is called with the hbalock held to post a hbq buffer to the
2437 * firmware. If the function finds an empty slot in the HBQ, it will post the
2438 * buffer and place it on the hbq_buffer_list. The function will return zero if
2439 * it successfully post the buffer else it will return an error.
2442 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
2443 struct hbq_dmabuf *hbq_buf)
2445 struct lpfc_hbq_entry *hbqe;
2446 dma_addr_t physaddr = hbq_buf->dbuf.phys;
2448 lockdep_assert_held(&phba->hbalock);
2449 /* Get next HBQ entry slot to use */
2450 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
2452 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2454 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
2455 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
2456 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
2457 hbqe->bde.tus.f.bdeFlags = 0;
2458 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
2459 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
2461 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
2462 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
2464 readl(phba->hbq_put + hbqno);
2465 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
2472 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
2473 * @phba: Pointer to HBA context object.
2474 * @hbqno: HBQ number.
2475 * @hbq_buf: Pointer to HBQ buffer.
2477 * This function is called with the hbalock held to post an RQE to the SLI4
2478 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
2479 * the hbq_buffer_list and return zero, otherwise it will return an error.
2482 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
2483 struct hbq_dmabuf *hbq_buf)
2486 struct lpfc_rqe hrqe;
2487 struct lpfc_rqe drqe;
2488 struct lpfc_queue *hrq;
2489 struct lpfc_queue *drq;
2491 if (hbqno != LPFC_ELS_HBQ)
2493 hrq = phba->sli4_hba.hdr_rq;
2494 drq = phba->sli4_hba.dat_rq;
2496 lockdep_assert_held(&phba->hbalock);
2497 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
2498 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
2499 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
2500 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
2501 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
2504 hbq_buf->tag = (rc | (hbqno << 16));
2505 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
2509 /* HBQ for ELS and CT traffic. */
2510 static struct lpfc_hbq_init lpfc_els_hbq = {
2515 .ring_mask = (1 << LPFC_ELS_RING),
2522 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
2527 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
2528 * @phba: Pointer to HBA context object.
2529 * @hbqno: HBQ number.
2530 * @count: Number of HBQ buffers to be posted.
2532 * This function is called with no lock held to post more hbq buffers to the
2533 * given HBQ. The function returns the number of HBQ buffers successfully
2537 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
2539 uint32_t i, posted = 0;
2540 unsigned long flags;
2541 struct hbq_dmabuf *hbq_buffer;
2542 LIST_HEAD(hbq_buf_list);
2543 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
2546 if ((phba->hbqs[hbqno].buffer_count + count) >
2547 lpfc_hbq_defs[hbqno]->entry_count)
2548 count = lpfc_hbq_defs[hbqno]->entry_count -
2549 phba->hbqs[hbqno].buffer_count;
2552 /* Allocate HBQ entries */
2553 for (i = 0; i < count; i++) {
2554 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
2557 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
2559 /* Check whether HBQ is still in use */
2560 spin_lock_irqsave(&phba->hbalock, flags);
2561 if (!phba->hbq_in_use)
2563 while (!list_empty(&hbq_buf_list)) {
2564 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2566 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
2568 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
2569 phba->hbqs[hbqno].buffer_count++;
2572 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2574 spin_unlock_irqrestore(&phba->hbalock, flags);
2577 spin_unlock_irqrestore(&phba->hbalock, flags);
2578 while (!list_empty(&hbq_buf_list)) {
2579 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2581 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2587 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
2588 * @phba: Pointer to HBA context object.
2591 * This function posts more buffers to the HBQ. This function
2592 * is called with no lock held. The function returns the number of HBQ entries
2593 * successfully allocated.
2596 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
2598 if (phba->sli_rev == LPFC_SLI_REV4)
2601 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2602 lpfc_hbq_defs[qno]->add_count);
2606 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
2607 * @phba: Pointer to HBA context object.
2608 * @qno: HBQ queue number.
2610 * This function is called from SLI initialization code path with
2611 * no lock held to post initial HBQ buffers to firmware. The
2612 * function returns the number of HBQ entries successfully allocated.
2615 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2617 if (phba->sli_rev == LPFC_SLI_REV4)
2618 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2619 lpfc_hbq_defs[qno]->entry_count);
2621 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2622 lpfc_hbq_defs[qno]->init_count);
2626 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2628 * This function removes the first hbq buffer on an hbq list and returns a
2629 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2631 static struct hbq_dmabuf *
2632 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2634 struct lpfc_dmabuf *d_buf;
2636 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2639 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2643 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2644 * @phba: Pointer to HBA context object.
2647 * This function removes the first RQ buffer on an RQ buffer list and returns a
2648 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2650 static struct rqb_dmabuf *
2651 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2653 struct lpfc_dmabuf *h_buf;
2654 struct lpfc_rqb *rqbp;
2657 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2658 struct lpfc_dmabuf, list);
2661 rqbp->buffer_count--;
2662 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2666 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2667 * @phba: Pointer to HBA context object.
2668 * @tag: Tag of the hbq buffer.
2670 * This function searches for the hbq buffer associated with the given tag in
2671 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2672 * otherwise it returns NULL.
2674 static struct hbq_dmabuf *
2675 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2677 struct lpfc_dmabuf *d_buf;
2678 struct hbq_dmabuf *hbq_buf;
2682 if (hbqno >= LPFC_MAX_HBQS)
2685 spin_lock_irq(&phba->hbalock);
2686 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2687 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2688 if (hbq_buf->tag == tag) {
2689 spin_unlock_irq(&phba->hbalock);
2693 spin_unlock_irq(&phba->hbalock);
2694 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2695 "1803 Bad hbq tag. Data: x%x x%x\n",
2696 tag, phba->hbqs[tag >> 16].buffer_count);
2701 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2702 * @phba: Pointer to HBA context object.
2703 * @hbq_buffer: Pointer to HBQ buffer.
2705 * This function is called with hbalock. This function gives back
2706 * the hbq buffer to firmware. If the HBQ does not have space to
2707 * post the buffer, it will free the buffer.
2710 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2715 hbqno = hbq_buffer->tag >> 16;
2716 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2717 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2722 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2723 * @mbxCommand: mailbox command code.
2725 * This function is called by the mailbox event handler function to verify
2726 * that the completed mailbox command is a legitimate mailbox command. If the
2727 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2728 * and the mailbox event handler will take the HBA offline.
2731 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2735 switch (mbxCommand) {
2739 case MBX_WRITE_VPARMS:
2740 case MBX_RUN_BIU_DIAG:
2743 case MBX_CONFIG_LINK:
2744 case MBX_CONFIG_RING:
2745 case MBX_RESET_RING:
2746 case MBX_READ_CONFIG:
2747 case MBX_READ_RCONFIG:
2748 case MBX_READ_SPARM:
2749 case MBX_READ_STATUS:
2753 case MBX_READ_LNK_STAT:
2755 case MBX_UNREG_LOGIN:
2757 case MBX_DUMP_MEMORY:
2758 case MBX_DUMP_CONTEXT:
2761 case MBX_UPDATE_CFG:
2763 case MBX_DEL_LD_ENTRY:
2764 case MBX_RUN_PROGRAM:
2766 case MBX_SET_VARIABLE:
2767 case MBX_UNREG_D_ID:
2768 case MBX_KILL_BOARD:
2769 case MBX_CONFIG_FARP:
2772 case MBX_RUN_BIU_DIAG64:
2773 case MBX_CONFIG_PORT:
2774 case MBX_READ_SPARM64:
2775 case MBX_READ_RPI64:
2776 case MBX_REG_LOGIN64:
2777 case MBX_READ_TOPOLOGY:
2780 case MBX_LOAD_EXP_ROM:
2781 case MBX_ASYNCEVT_ENABLE:
2785 case MBX_PORT_CAPABILITIES:
2786 case MBX_PORT_IOV_CONTROL:
2787 case MBX_SLI4_CONFIG:
2788 case MBX_SLI4_REQ_FTRS:
2790 case MBX_UNREG_FCFI:
2795 case MBX_RESUME_RPI:
2796 case MBX_READ_EVENT_LOG_STATUS:
2797 case MBX_READ_EVENT_LOG:
2798 case MBX_SECURITY_MGMT:
2800 case MBX_ACCESS_VDATA:
2811 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2812 * @phba: Pointer to HBA context object.
2813 * @pmboxq: Pointer to mailbox command.
2815 * This is completion handler function for mailbox commands issued from
2816 * lpfc_sli_issue_mbox_wait function. This function is called by the
2817 * mailbox event handler function with no lock held. This function
2818 * will wake up thread waiting on the wait queue pointed by context1
2822 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2824 unsigned long drvr_flag;
2825 struct completion *pmbox_done;
2828 * If pmbox_done is empty, the driver thread gave up waiting and
2829 * continued running.
2831 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2832 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2833 pmbox_done = (struct completion *)pmboxq->context3;
2835 complete(pmbox_done);
2836 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2841 __lpfc_sli_rpi_release(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2843 unsigned long iflags;
2845 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
2846 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
2847 spin_lock_irqsave(&ndlp->lock, iflags);
2848 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
2849 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
2850 spin_unlock_irqrestore(&ndlp->lock, iflags);
2852 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2856 lpfc_sli_rpi_release(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2858 __lpfc_sli_rpi_release(vport, ndlp);
2862 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2863 * @phba: Pointer to HBA context object.
2864 * @pmb: Pointer to mailbox object.
2866 * This function is the default mailbox completion handler. It
2867 * frees the memory resources associated with the completed mailbox
2868 * command. If the completed command is a REG_LOGIN mailbox command,
2869 * this function will issue a UREG_LOGIN to re-claim the RPI.
2872 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2874 struct lpfc_vport *vport = pmb->vport;
2875 struct lpfc_dmabuf *mp;
2876 struct lpfc_nodelist *ndlp;
2877 struct Scsi_Host *shost;
2882 * If a REG_LOGIN succeeded after node is destroyed or node
2883 * is in re-discovery driver need to cleanup the RPI.
2885 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2886 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2887 !pmb->u.mb.mbxStatus) {
2888 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
2890 pmb->ctx_buf = NULL;
2891 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2894 rpi = pmb->u.mb.un.varWords[0];
2895 vpi = pmb->u.mb.un.varRegLogin.vpi;
2896 if (phba->sli_rev == LPFC_SLI_REV4)
2897 vpi -= phba->sli4_hba.max_cfg_param.vpi_base;
2898 lpfc_unreg_login(phba, vpi, rpi, pmb);
2900 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2901 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2902 if (rc != MBX_NOT_FINISHED)
2906 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2907 !(phba->pport->load_flag & FC_UNLOADING) &&
2908 !pmb->u.mb.mbxStatus) {
2909 shost = lpfc_shost_from_vport(vport);
2910 spin_lock_irq(shost->host_lock);
2911 vport->vpi_state |= LPFC_VPI_REGISTERED;
2912 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2913 spin_unlock_irq(shost->host_lock);
2916 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2917 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2921 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2922 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2924 /* Check to see if there are any deferred events to process */
2928 KERN_INFO, LOG_MBOX | LOG_DISCOVERY,
2929 "1438 UNREG cmpl deferred mbox x%x "
2930 "on NPort x%x Data: x%x x%x x%px x%x x%x\n",
2931 ndlp->nlp_rpi, ndlp->nlp_DID,
2932 ndlp->nlp_flag, ndlp->nlp_defer_did,
2933 ndlp, vport->load_flag, kref_read(&ndlp->kref));
2935 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2936 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
2937 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2938 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
2939 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2941 __lpfc_sli_rpi_release(vport, ndlp);
2944 /* The unreg_login mailbox is complete and had a
2945 * reference that has to be released. The PLOGI
2949 pmb->ctx_ndlp = NULL;
2953 /* This nlp_put pairs with lpfc_sli4_resume_rpi */
2954 if (pmb->u.mb.mbxCommand == MBX_RESUME_RPI) {
2955 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2959 /* Check security permission status on INIT_LINK mailbox command */
2960 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2961 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2962 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2963 "2860 SLI authentication is required "
2964 "for INIT_LINK but has not done yet\n");
2966 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2967 lpfc_sli4_mbox_cmd_free(phba, pmb);
2969 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
2972 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2973 * @phba: Pointer to HBA context object.
2974 * @pmb: Pointer to mailbox object.
2976 * This function is the unreg rpi mailbox completion handler. It
2977 * frees the memory resources associated with the completed mailbox
2978 * command. An additional reference is put on the ndlp to prevent
2979 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2980 * the unreg mailbox command completes, this routine puts the
2985 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2987 struct lpfc_vport *vport = pmb->vport;
2988 struct lpfc_nodelist *ndlp;
2990 ndlp = pmb->ctx_ndlp;
2991 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2992 if (phba->sli_rev == LPFC_SLI_REV4 &&
2993 (bf_get(lpfc_sli_intf_if_type,
2994 &phba->sli4_hba.sli_intf) >=
2995 LPFC_SLI_INTF_IF_TYPE_2)) {
2999 LOG_MBOX | LOG_SLI | LOG_NODE,
3000 "0010 UNREG_LOGIN vpi:x%x "
3001 "rpi:%x DID:%x defer x%x flg x%x "
3003 vport->vpi, ndlp->nlp_rpi,
3004 ndlp->nlp_DID, ndlp->nlp_defer_did,
3007 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
3009 /* Check to see if there are any deferred
3012 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
3013 (ndlp->nlp_defer_did !=
3014 NLP_EVT_NOTHING_PENDING)) {
3017 LOG_MBOX | LOG_SLI | LOG_NODE,
3018 "4111 UNREG cmpl deferred "
3020 "NPort x%x Data: x%x x%px\n",
3021 ndlp->nlp_rpi, ndlp->nlp_DID,
3022 ndlp->nlp_defer_did, ndlp);
3023 ndlp->nlp_flag &= ~NLP_UNREG_INP;
3024 ndlp->nlp_defer_did =
3025 NLP_EVT_NOTHING_PENDING;
3026 lpfc_issue_els_plogi(
3027 vport, ndlp->nlp_DID, 0);
3029 __lpfc_sli_rpi_release(vport, ndlp);
3036 mempool_free(pmb, phba->mbox_mem_pool);
3040 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
3041 * @phba: Pointer to HBA context object.
3043 * This function is called with no lock held. This function processes all
3044 * the completed mailbox commands and gives it to upper layers. The interrupt
3045 * service routine processes mailbox completion interrupt and adds completed
3046 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
3047 * Worker thread call lpfc_sli_handle_mb_event, which will return the
3048 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
3049 * function returns the mailbox commands to the upper layer by calling the
3050 * completion handler function of each mailbox.
3053 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
3060 phba->sli.slistat.mbox_event++;
3062 /* Get all completed mailboxe buffers into the cmplq */
3063 spin_lock_irq(&phba->hbalock);
3064 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
3065 spin_unlock_irq(&phba->hbalock);
3067 /* Get a Mailbox buffer to setup mailbox commands for callback */
3069 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
3075 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
3077 lpfc_debugfs_disc_trc(pmb->vport,
3078 LPFC_DISC_TRC_MBOX_VPORT,
3079 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
3080 (uint32_t)pmbox->mbxCommand,
3081 pmbox->un.varWords[0],
3082 pmbox->un.varWords[1]);
3085 lpfc_debugfs_disc_trc(phba->pport,
3087 "MBOX cmpl: cmd:x%x mb:x%x x%x",
3088 (uint32_t)pmbox->mbxCommand,
3089 pmbox->un.varWords[0],
3090 pmbox->un.varWords[1]);
3095 * It is a fatal error if unknown mbox command completion.
3097 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
3099 /* Unknown mailbox command compl */
3100 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3101 "(%d):0323 Unknown Mailbox command "
3102 "x%x (x%x/x%x) Cmpl\n",
3103 pmb->vport ? pmb->vport->vpi :
3106 lpfc_sli_config_mbox_subsys_get(phba,
3108 lpfc_sli_config_mbox_opcode_get(phba,
3110 phba->link_state = LPFC_HBA_ERROR;
3111 phba->work_hs = HS_FFER3;
3112 lpfc_handle_eratt(phba);
3116 if (pmbox->mbxStatus) {
3117 phba->sli.slistat.mbox_stat_err++;
3118 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
3119 /* Mbox cmd cmpl error - RETRYing */
3120 lpfc_printf_log(phba, KERN_INFO,
3122 "(%d):0305 Mbox cmd cmpl "
3123 "error - RETRYing Data: x%x "
3124 "(x%x/x%x) x%x x%x x%x\n",
3125 pmb->vport ? pmb->vport->vpi :
3128 lpfc_sli_config_mbox_subsys_get(phba,
3130 lpfc_sli_config_mbox_opcode_get(phba,
3133 pmbox->un.varWords[0],
3134 pmb->vport ? pmb->vport->port_state :
3135 LPFC_VPORT_UNKNOWN);
3136 pmbox->mbxStatus = 0;
3137 pmbox->mbxOwner = OWN_HOST;
3138 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3139 if (rc != MBX_NOT_FINISHED)
3144 /* Mailbox cmd <cmd> Cmpl <cmpl> */
3145 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
3146 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl %ps "
3147 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
3149 pmb->vport ? pmb->vport->vpi : 0,
3151 lpfc_sli_config_mbox_subsys_get(phba, pmb),
3152 lpfc_sli_config_mbox_opcode_get(phba, pmb),
3154 *((uint32_t *) pmbox),
3155 pmbox->un.varWords[0],
3156 pmbox->un.varWords[1],
3157 pmbox->un.varWords[2],
3158 pmbox->un.varWords[3],
3159 pmbox->un.varWords[4],
3160 pmbox->un.varWords[5],
3161 pmbox->un.varWords[6],
3162 pmbox->un.varWords[7],
3163 pmbox->un.varWords[8],
3164 pmbox->un.varWords[9],
3165 pmbox->un.varWords[10]);
3168 pmb->mbox_cmpl(phba,pmb);
3174 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
3175 * @phba: Pointer to HBA context object.
3176 * @pring: Pointer to driver SLI ring object.
3179 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
3180 * is set in the tag the buffer is posted for a particular exchange,
3181 * the function will return the buffer without replacing the buffer.
3182 * If the buffer is for unsolicited ELS or CT traffic, this function
3183 * returns the buffer and also posts another buffer to the firmware.
3185 static struct lpfc_dmabuf *
3186 lpfc_sli_get_buff(struct lpfc_hba *phba,
3187 struct lpfc_sli_ring *pring,
3190 struct hbq_dmabuf *hbq_entry;
3192 if (tag & QUE_BUFTAG_BIT)
3193 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
3194 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
3197 return &hbq_entry->dbuf;
3201 * lpfc_nvme_unsol_ls_handler - Process an unsolicited event data buffer
3202 * containing a NVME LS request.
3203 * @phba: pointer to lpfc hba data structure.
3204 * @piocb: pointer to the iocbq struct representing the sequence starting
3207 * This routine initially validates the NVME LS, validates there is a login
3208 * with the port that sent the LS, and then calls the appropriate nvme host
3209 * or target LS request handler.
3212 lpfc_nvme_unsol_ls_handler(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
3214 struct lpfc_nodelist *ndlp;
3215 struct lpfc_dmabuf *d_buf;
3216 struct hbq_dmabuf *nvmebuf;
3217 struct fc_frame_header *fc_hdr;
3218 struct lpfc_async_xchg_ctx *axchg = NULL;
3219 char *failwhy = NULL;
3220 uint32_t oxid, sid, did, fctl, size;
3223 d_buf = piocb->cmd_dmabuf;
3225 nvmebuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
3226 fc_hdr = nvmebuf->hbuf.virt;
3227 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
3228 sid = sli4_sid_from_fc_hdr(fc_hdr);
3229 did = sli4_did_from_fc_hdr(fc_hdr);
3230 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
3231 fc_hdr->fh_f_ctl[1] << 8 |
3232 fc_hdr->fh_f_ctl[2]);
3233 size = bf_get(lpfc_rcqe_length, &nvmebuf->cq_event.cqe.rcqe_cmpl);
3235 lpfc_nvmeio_data(phba, "NVME LS RCV: xri x%x sz %d from %06x\n",
3238 if (phba->pport->load_flag & FC_UNLOADING) {
3239 failwhy = "Driver Unloading";
3240 } else if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
3241 failwhy = "NVME FC4 Disabled";
3242 } else if (!phba->nvmet_support && !phba->pport->localport) {
3243 failwhy = "No Localport";
3244 } else if (phba->nvmet_support && !phba->targetport) {
3245 failwhy = "No Targetport";
3246 } else if (unlikely(fc_hdr->fh_r_ctl != FC_RCTL_ELS4_REQ)) {
3247 failwhy = "Bad NVME LS R_CTL";
3248 } else if (unlikely((fctl & 0x00FF0000) !=
3249 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT))) {
3250 failwhy = "Bad NVME LS F_CTL";
3252 axchg = kzalloc(sizeof(*axchg), GFP_ATOMIC);
3254 failwhy = "No CTX memory";
3257 if (unlikely(failwhy)) {
3258 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3259 "6154 Drop NVME LS: SID %06X OXID x%X: %s\n",
3260 sid, oxid, failwhy);
3264 /* validate the source of the LS is logged in */
3265 ndlp = lpfc_findnode_did(phba->pport, sid);
3267 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3268 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
3269 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
3270 "6216 NVME Unsol rcv: No ndlp: "
3271 "NPort_ID x%x oxid x%x\n",
3282 axchg->state = LPFC_NVME_STE_LS_RCV;
3283 axchg->entry_cnt = 1;
3284 axchg->rqb_buffer = (void *)nvmebuf;
3285 axchg->hdwq = &phba->sli4_hba.hdwq[0];
3286 axchg->payload = nvmebuf->dbuf.virt;
3287 INIT_LIST_HEAD(&axchg->list);
3289 if (phba->nvmet_support) {
3290 ret = lpfc_nvmet_handle_lsreq(phba, axchg);
3291 spin_lock_irq(&ndlp->lock);
3292 if (!ret && !(ndlp->fc4_xpt_flags & NLP_XPT_HAS_HH)) {
3293 ndlp->fc4_xpt_flags |= NLP_XPT_HAS_HH;
3294 spin_unlock_irq(&ndlp->lock);
3296 /* This reference is a single occurrence to hold the
3297 * node valid until the nvmet transport calls
3300 if (!lpfc_nlp_get(ndlp))
3303 lpfc_printf_log(phba, KERN_ERR, LOG_NODE,
3304 "6206 NVMET unsol ls_req ndlp x%px "
3305 "DID x%x xflags x%x refcnt %d\n",
3306 ndlp, ndlp->nlp_DID,
3307 ndlp->fc4_xpt_flags,
3308 kref_read(&ndlp->kref));
3310 spin_unlock_irq(&ndlp->lock);
3313 ret = lpfc_nvme_handle_lsreq(phba, axchg);
3316 /* if zero, LS was successfully handled. If non-zero, LS not handled */
3321 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3322 "6155 Drop NVME LS from DID %06X: SID %06X OXID x%X "
3323 "NVMe%s handler failed %d\n",
3325 (phba->nvmet_support) ? "T" : "I", ret);
3327 /* recycle receive buffer */
3328 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
3330 /* If start of new exchange, abort it */
3331 if (axchg && (fctl & FC_FC_FIRST_SEQ && !(fctl & FC_FC_EX_CTX)))
3332 ret = lpfc_nvme_unsol_ls_issue_abort(phba, axchg, sid, oxid);
3339 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
3340 * @phba: Pointer to HBA context object.
3341 * @pring: Pointer to driver SLI ring object.
3342 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
3343 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
3344 * @fch_type: the type for the first frame of the sequence.
3346 * This function is called with no lock held. This function uses the r_ctl and
3347 * type of the received sequence to find the correct callback function to call
3348 * to process the sequence.
3351 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3352 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
3359 lpfc_nvme_unsol_ls_handler(phba, saveq);
3365 /* unSolicited Responses */
3366 if (pring->prt[0].profile) {
3367 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
3368 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
3372 /* We must search, based on rctl / type
3373 for the right routine */
3374 for (i = 0; i < pring->num_mask; i++) {
3375 if ((pring->prt[i].rctl == fch_r_ctl) &&
3376 (pring->prt[i].type == fch_type)) {
3377 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
3378 (pring->prt[i].lpfc_sli_rcv_unsol_event)
3379 (phba, pring, saveq);
3387 lpfc_sli_prep_unsol_wqe(struct lpfc_hba *phba,
3388 struct lpfc_iocbq *saveq)
3391 union lpfc_wqe128 *wqe;
3394 irsp = &saveq->iocb;
3397 /* Fill wcqe with the IOCB status fields */
3398 bf_set(lpfc_wcqe_c_status, &saveq->wcqe_cmpl, irsp->ulpStatus);
3399 saveq->wcqe_cmpl.word3 = irsp->ulpBdeCount;
3400 saveq->wcqe_cmpl.parameter = irsp->un.ulpWord[4];
3401 saveq->wcqe_cmpl.total_data_placed = irsp->unsli3.rcvsli3.acc_len;
3404 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp, irsp->un.rcvels.parmRo);
3406 /* rx-id of the response frame */
3407 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, irsp->ulpContext);
3409 /* ox-id of the frame */
3410 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
3411 irsp->unsli3.rcvsli3.ox_id);
3414 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
3415 irsp->un.rcvels.remoteID);
3417 /* unsol data len */
3418 for (i = 0; i < irsp->ulpBdeCount; i++) {
3419 struct lpfc_hbq_entry *hbqe = NULL;
3421 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
3423 hbqe = (struct lpfc_hbq_entry *)
3424 &irsp->un.ulpWord[0];
3425 saveq->wqe.gen_req.bde.tus.f.bdeSize =
3426 hbqe->bde.tus.f.bdeSize;
3427 } else if (i == 1) {
3428 hbqe = (struct lpfc_hbq_entry *)
3429 &irsp->unsli3.sli3Words[4];
3430 saveq->unsol_rcv_len = hbqe->bde.tus.f.bdeSize;
3437 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
3438 * @phba: Pointer to HBA context object.
3439 * @pring: Pointer to driver SLI ring object.
3440 * @saveq: Pointer to the unsolicited iocb.
3442 * This function is called with no lock held by the ring event handler
3443 * when there is an unsolicited iocb posted to the response ring by the
3444 * firmware. This function gets the buffer associated with the iocbs
3445 * and calls the event handler for the ring. This function handles both
3446 * qring buffers and hbq buffers.
3447 * When the function returns 1 the caller can free the iocb object otherwise
3448 * upper layer functions will free the iocb objects.
3451 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3452 struct lpfc_iocbq *saveq)
3457 uint32_t Rctl, Type;
3458 struct lpfc_iocbq *iocbq;
3459 struct lpfc_dmabuf *dmzbuf;
3461 irsp = &saveq->iocb;
3462 saveq->vport = phba->pport;
3464 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
3465 if (pring->lpfc_sli_rcv_async_status)
3466 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
3468 lpfc_printf_log(phba,
3471 "0316 Ring %d handler: unexpected "
3472 "ASYNC_STATUS iocb received evt_code "
3475 irsp->un.asyncstat.evt_code);
3479 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
3480 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
3481 if (irsp->ulpBdeCount > 0) {
3482 dmzbuf = lpfc_sli_get_buff(phba, pring,
3483 irsp->un.ulpWord[3]);
3484 lpfc_in_buf_free(phba, dmzbuf);
3487 if (irsp->ulpBdeCount > 1) {
3488 dmzbuf = lpfc_sli_get_buff(phba, pring,
3489 irsp->unsli3.sli3Words[3]);
3490 lpfc_in_buf_free(phba, dmzbuf);
3493 if (irsp->ulpBdeCount > 2) {
3494 dmzbuf = lpfc_sli_get_buff(phba, pring,
3495 irsp->unsli3.sli3Words[7]);
3496 lpfc_in_buf_free(phba, dmzbuf);
3502 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
3503 if (irsp->ulpBdeCount != 0) {
3504 saveq->cmd_dmabuf = lpfc_sli_get_buff(phba, pring,
3505 irsp->un.ulpWord[3]);
3506 if (!saveq->cmd_dmabuf)
3507 lpfc_printf_log(phba,
3510 "0341 Ring %d Cannot find buffer for "
3511 "an unsolicited iocb. tag 0x%x\n",
3513 irsp->un.ulpWord[3]);
3515 if (irsp->ulpBdeCount == 2) {
3516 saveq->bpl_dmabuf = lpfc_sli_get_buff(phba, pring,
3517 irsp->unsli3.sli3Words[7]);
3518 if (!saveq->bpl_dmabuf)
3519 lpfc_printf_log(phba,
3522 "0342 Ring %d Cannot find buffer for an"
3523 " unsolicited iocb. tag 0x%x\n",
3525 irsp->unsli3.sli3Words[7]);
3527 list_for_each_entry(iocbq, &saveq->list, list) {
3528 irsp = &iocbq->iocb;
3529 if (irsp->ulpBdeCount != 0) {
3530 iocbq->cmd_dmabuf = lpfc_sli_get_buff(phba,
3532 irsp->un.ulpWord[3]);
3533 if (!iocbq->cmd_dmabuf)
3534 lpfc_printf_log(phba,
3537 "0343 Ring %d Cannot find "
3538 "buffer for an unsolicited iocb"
3539 ". tag 0x%x\n", pring->ringno,
3540 irsp->un.ulpWord[3]);
3542 if (irsp->ulpBdeCount == 2) {
3543 iocbq->bpl_dmabuf = lpfc_sli_get_buff(phba,
3545 irsp->unsli3.sli3Words[7]);
3546 if (!iocbq->bpl_dmabuf)
3547 lpfc_printf_log(phba,
3550 "0344 Ring %d Cannot find "
3551 "buffer for an unsolicited "
3554 irsp->unsli3.sli3Words[7]);
3558 paddr = getPaddr(irsp->un.cont64[0].addrHigh,
3559 irsp->un.cont64[0].addrLow);
3560 saveq->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring,
3562 if (irsp->ulpBdeCount == 2) {
3563 paddr = getPaddr(irsp->un.cont64[1].addrHigh,
3564 irsp->un.cont64[1].addrLow);
3565 saveq->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba,
3571 if (irsp->ulpBdeCount != 0 &&
3572 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
3573 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
3576 /* search continue save q for same XRI */
3577 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
3578 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
3579 saveq->iocb.unsli3.rcvsli3.ox_id) {
3580 list_add_tail(&saveq->list, &iocbq->list);
3586 list_add_tail(&saveq->clist,
3587 &pring->iocb_continue_saveq);
3589 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
3590 list_del_init(&iocbq->clist);
3592 irsp = &saveq->iocb;
3597 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
3598 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
3599 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
3600 Rctl = FC_RCTL_ELS_REQ;
3603 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
3604 Rctl = w5p->hcsw.Rctl;
3605 Type = w5p->hcsw.Type;
3607 /* Firmware Workaround */
3608 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
3609 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
3610 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
3611 Rctl = FC_RCTL_ELS_REQ;
3613 w5p->hcsw.Rctl = Rctl;
3614 w5p->hcsw.Type = Type;
3618 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3619 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
3620 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
3621 if (irsp->unsli3.rcvsli3.vpi == 0xffff)
3622 saveq->vport = phba->pport;
3624 saveq->vport = lpfc_find_vport_by_vpid(phba,
3625 irsp->unsli3.rcvsli3.vpi);
3628 /* Prepare WQE with Unsol frame */
3629 lpfc_sli_prep_unsol_wqe(phba, saveq);
3631 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
3632 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3633 "0313 Ring %d handler: unexpected Rctl x%x "
3634 "Type x%x received\n",
3635 pring->ringno, Rctl, Type);
3641 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
3642 * @phba: Pointer to HBA context object.
3643 * @pring: Pointer to driver SLI ring object.
3644 * @prspiocb: Pointer to response iocb object.
3646 * This function looks up the iocb_lookup table to get the command iocb
3647 * corresponding to the given response iocb using the iotag of the
3648 * response iocb. The driver calls this function with the hbalock held
3649 * for SLI3 ports or the ring lock held for SLI4 ports.
3650 * This function returns the command iocb object if it finds the command
3651 * iocb else returns NULL.
3653 static struct lpfc_iocbq *
3654 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
3655 struct lpfc_sli_ring *pring,
3656 struct lpfc_iocbq *prspiocb)
3658 struct lpfc_iocbq *cmd_iocb = NULL;
3661 if (phba->sli_rev == LPFC_SLI_REV4)
3662 iotag = get_wqe_reqtag(prspiocb);
3664 iotag = prspiocb->iocb.ulpIoTag;
3666 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3667 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3668 if (cmd_iocb->cmd_flag & LPFC_IO_ON_TXCMPLQ) {
3669 /* remove from txcmpl queue list */
3670 list_del_init(&cmd_iocb->list);
3671 cmd_iocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
3672 pring->txcmplq_cnt--;
3677 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3678 "0317 iotag x%x is out of "
3679 "range: max iotag x%x\n",
3680 iotag, phba->sli.last_iotag);
3685 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
3686 * @phba: Pointer to HBA context object.
3687 * @pring: Pointer to driver SLI ring object.
3690 * This function looks up the iocb_lookup table to get the command iocb
3691 * corresponding to the given iotag. The driver calls this function with
3692 * the ring lock held because this function is an SLI4 port only helper.
3693 * This function returns the command iocb object if it finds the command
3694 * iocb else returns NULL.
3696 static struct lpfc_iocbq *
3697 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
3698 struct lpfc_sli_ring *pring, uint16_t iotag)
3700 struct lpfc_iocbq *cmd_iocb = NULL;
3702 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3703 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3704 if (cmd_iocb->cmd_flag & LPFC_IO_ON_TXCMPLQ) {
3705 /* remove from txcmpl queue list */
3706 list_del_init(&cmd_iocb->list);
3707 cmd_iocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
3708 pring->txcmplq_cnt--;
3713 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3714 "0372 iotag x%x lookup error: max iotag (x%x) "
3716 iotag, phba->sli.last_iotag,
3717 cmd_iocb ? cmd_iocb->cmd_flag : 0xffff);
3722 * lpfc_sli_process_sol_iocb - process solicited iocb completion
3723 * @phba: Pointer to HBA context object.
3724 * @pring: Pointer to driver SLI ring object.
3725 * @saveq: Pointer to the response iocb to be processed.
3727 * This function is called by the ring event handler for non-fcp
3728 * rings when there is a new response iocb in the response ring.
3729 * The caller is not required to hold any locks. This function
3730 * gets the command iocb associated with the response iocb and
3731 * calls the completion handler for the command iocb. If there
3732 * is no completion handler, the function will free the resources
3733 * associated with command iocb. If the response iocb is for
3734 * an already aborted command iocb, the status of the completion
3735 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
3736 * This function always returns 1.
3739 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3740 struct lpfc_iocbq *saveq)
3742 struct lpfc_iocbq *cmdiocbp;
3743 unsigned long iflag;
3744 u32 ulp_command, ulp_status, ulp_word4, ulp_context, iotag;
3746 if (phba->sli_rev == LPFC_SLI_REV4)
3747 spin_lock_irqsave(&pring->ring_lock, iflag);
3749 spin_lock_irqsave(&phba->hbalock, iflag);
3750 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
3751 if (phba->sli_rev == LPFC_SLI_REV4)
3752 spin_unlock_irqrestore(&pring->ring_lock, iflag);
3754 spin_unlock_irqrestore(&phba->hbalock, iflag);
3756 ulp_command = get_job_cmnd(phba, saveq);
3757 ulp_status = get_job_ulpstatus(phba, saveq);
3758 ulp_word4 = get_job_word4(phba, saveq);
3759 ulp_context = get_job_ulpcontext(phba, saveq);
3760 if (phba->sli_rev == LPFC_SLI_REV4)
3761 iotag = get_wqe_reqtag(saveq);
3763 iotag = saveq->iocb.ulpIoTag;
3766 ulp_command = get_job_cmnd(phba, cmdiocbp);
3767 if (cmdiocbp->cmd_cmpl) {
3769 * If an ELS command failed send an event to mgmt
3773 (pring->ringno == LPFC_ELS_RING) &&
3774 (ulp_command == CMD_ELS_REQUEST64_CR))
3775 lpfc_send_els_failure_event(phba,
3779 * Post all ELS completions to the worker thread.
3780 * All other are passed to the completion callback.
3782 if (pring->ringno == LPFC_ELS_RING) {
3783 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3784 (cmdiocbp->cmd_flag &
3785 LPFC_DRIVER_ABORTED)) {
3786 spin_lock_irqsave(&phba->hbalock,
3788 cmdiocbp->cmd_flag &=
3789 ~LPFC_DRIVER_ABORTED;
3790 spin_unlock_irqrestore(&phba->hbalock,
3792 saveq->iocb.ulpStatus =
3793 IOSTAT_LOCAL_REJECT;
3794 saveq->iocb.un.ulpWord[4] =
3797 /* Firmware could still be in progress
3798 * of DMAing payload, so don't free data
3799 * buffer till after a hbeat.
3801 spin_lock_irqsave(&phba->hbalock,
3803 saveq->cmd_flag |= LPFC_DELAY_MEM_FREE;
3804 spin_unlock_irqrestore(&phba->hbalock,
3807 if (phba->sli_rev == LPFC_SLI_REV4) {
3808 if (saveq->cmd_flag &
3809 LPFC_EXCHANGE_BUSY) {
3810 /* Set cmdiocb flag for the
3811 * exchange busy so sgl (xri)
3812 * will not be released until
3813 * the abort xri is received
3817 &phba->hbalock, iflag);
3818 cmdiocbp->cmd_flag |=
3820 spin_unlock_irqrestore(
3821 &phba->hbalock, iflag);
3823 if (cmdiocbp->cmd_flag &
3824 LPFC_DRIVER_ABORTED) {
3826 * Clear LPFC_DRIVER_ABORTED
3827 * bit in case it was driver
3831 &phba->hbalock, iflag);
3832 cmdiocbp->cmd_flag &=
3833 ~LPFC_DRIVER_ABORTED;
3834 spin_unlock_irqrestore(
3835 &phba->hbalock, iflag);
3836 set_job_ulpstatus(cmdiocbp,
3837 IOSTAT_LOCAL_REJECT);
3838 set_job_ulpword4(cmdiocbp,
3839 IOERR_ABORT_REQUESTED);
3841 * For SLI4, irspiocb contains
3842 * NO_XRI in sli_xritag, it
3843 * shall not affect releasing
3844 * sgl (xri) process.
3846 set_job_ulpstatus(saveq,
3847 IOSTAT_LOCAL_REJECT);
3848 set_job_ulpword4(saveq,
3851 &phba->hbalock, iflag);
3853 LPFC_DELAY_MEM_FREE;
3854 spin_unlock_irqrestore(
3855 &phba->hbalock, iflag);
3859 cmdiocbp->cmd_cmpl(phba, cmdiocbp, saveq);
3861 lpfc_sli_release_iocbq(phba, cmdiocbp);
3864 * Unknown initiating command based on the response iotag.
3865 * This could be the case on the ELS ring because of
3868 if (pring->ringno != LPFC_ELS_RING) {
3870 * Ring <ringno> handler: unexpected completion IoTag
3873 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3874 "0322 Ring %d handler: "
3875 "unexpected completion IoTag x%x "
3876 "Data: x%x x%x x%x x%x\n",
3877 pring->ringno, iotag, ulp_status,
3878 ulp_word4, ulp_command, ulp_context);
3886 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
3887 * @phba: Pointer to HBA context object.
3888 * @pring: Pointer to driver SLI ring object.
3890 * This function is called from the iocb ring event handlers when
3891 * put pointer is ahead of the get pointer for a ring. This function signal
3892 * an error attention condition to the worker thread and the worker
3893 * thread will transition the HBA to offline state.
3896 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3898 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3900 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3901 * rsp ring <portRspMax>
3903 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3904 "0312 Ring %d handler: portRspPut %d "
3905 "is bigger than rsp ring %d\n",
3906 pring->ringno, le32_to_cpu(pgp->rspPutInx),
3907 pring->sli.sli3.numRiocb);
3909 phba->link_state = LPFC_HBA_ERROR;
3912 * All error attention handlers are posted to
3915 phba->work_ha |= HA_ERATT;
3916 phba->work_hs = HS_FFER3;
3918 lpfc_worker_wake_up(phba);
3924 * lpfc_poll_eratt - Error attention polling timer timeout handler
3925 * @t: Context to fetch pointer to address of HBA context object from.
3927 * This function is invoked by the Error Attention polling timer when the
3928 * timer times out. It will check the SLI Error Attention register for
3929 * possible attention events. If so, it will post an Error Attention event
3930 * and wake up worker thread to process it. Otherwise, it will set up the
3931 * Error Attention polling timer for the next poll.
3933 void lpfc_poll_eratt(struct timer_list *t)
3935 struct lpfc_hba *phba;
3937 uint64_t sli_intr, cnt;
3939 phba = from_timer(phba, t, eratt_poll);
3940 if (!(phba->hba_flag & HBA_SETUP))
3943 if (phba->pport->load_flag & FC_UNLOADING)
3946 /* Here we will also keep track of interrupts per sec of the hba */
3947 sli_intr = phba->sli.slistat.sli_intr;
3949 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3950 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3953 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3955 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3956 do_div(cnt, phba->eratt_poll_interval);
3957 phba->sli.slistat.sli_ips = cnt;
3959 phba->sli.slistat.sli_prev_intr = sli_intr;
3961 /* Check chip HA register for error event */
3962 eratt = lpfc_sli_check_eratt(phba);
3965 /* Tell the worker thread there is work to do */
3966 lpfc_worker_wake_up(phba);
3968 /* Restart the timer for next eratt poll */
3969 mod_timer(&phba->eratt_poll,
3971 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3977 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3978 * @phba: Pointer to HBA context object.
3979 * @pring: Pointer to driver SLI ring object.
3980 * @mask: Host attention register mask for this ring.
3982 * This function is called from the interrupt context when there is a ring
3983 * event for the fcp ring. The caller does not hold any lock.
3984 * The function processes each response iocb in the response ring until it
3985 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3986 * LE bit set. The function will call the completion handler of the command iocb
3987 * if the response iocb indicates a completion for a command iocb or it is
3988 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3989 * function if this is an unsolicited iocb.
3990 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3991 * to check it explicitly.
3994 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3995 struct lpfc_sli_ring *pring, uint32_t mask)
3997 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3998 IOCB_t *irsp = NULL;
3999 IOCB_t *entry = NULL;
4000 struct lpfc_iocbq *cmdiocbq = NULL;
4001 struct lpfc_iocbq rspiocbq;
4003 uint32_t portRspPut, portRspMax;
4005 lpfc_iocb_type type;
4006 unsigned long iflag;
4007 uint32_t rsp_cmpl = 0;
4009 spin_lock_irqsave(&phba->hbalock, iflag);
4010 pring->stats.iocb_event++;
4013 * The next available response entry should never exceed the maximum
4014 * entries. If it does, treat it as an adapter hardware error.
4016 portRspMax = pring->sli.sli3.numRiocb;
4017 portRspPut = le32_to_cpu(pgp->rspPutInx);
4018 if (unlikely(portRspPut >= portRspMax)) {
4019 lpfc_sli_rsp_pointers_error(phba, pring);
4020 spin_unlock_irqrestore(&phba->hbalock, iflag);
4023 if (phba->fcp_ring_in_use) {
4024 spin_unlock_irqrestore(&phba->hbalock, iflag);
4027 phba->fcp_ring_in_use = 1;
4030 while (pring->sli.sli3.rspidx != portRspPut) {
4032 * Fetch an entry off the ring and copy it into a local data
4033 * structure. The copy involves a byte-swap since the
4034 * network byte order and pci byte orders are different.
4036 entry = lpfc_resp_iocb(phba, pring);
4037 phba->last_completion_time = jiffies;
4039 if (++pring->sli.sli3.rspidx >= portRspMax)
4040 pring->sli.sli3.rspidx = 0;
4042 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
4043 (uint32_t *) &rspiocbq.iocb,
4044 phba->iocb_rsp_size);
4045 INIT_LIST_HEAD(&(rspiocbq.list));
4046 irsp = &rspiocbq.iocb;
4048 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
4049 pring->stats.iocb_rsp++;
4052 if (unlikely(irsp->ulpStatus)) {
4054 * If resource errors reported from HBA, reduce
4055 * queuedepths of the SCSI device.
4057 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
4058 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
4059 IOERR_NO_RESOURCES)) {
4060 spin_unlock_irqrestore(&phba->hbalock, iflag);
4061 phba->lpfc_rampdown_queue_depth(phba);
4062 spin_lock_irqsave(&phba->hbalock, iflag);
4065 /* Rsp ring <ringno> error: IOCB */
4066 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4067 "0336 Rsp Ring %d error: IOCB Data: "
4068 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
4070 irsp->un.ulpWord[0],
4071 irsp->un.ulpWord[1],
4072 irsp->un.ulpWord[2],
4073 irsp->un.ulpWord[3],
4074 irsp->un.ulpWord[4],
4075 irsp->un.ulpWord[5],
4076 *(uint32_t *)&irsp->un1,
4077 *((uint32_t *)&irsp->un1 + 1));
4081 case LPFC_ABORT_IOCB:
4084 * Idle exchange closed via ABTS from port. No iocb
4085 * resources need to be recovered.
4087 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
4088 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4089 "0333 IOCB cmd 0x%x"
4090 " processed. Skipping"
4096 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
4098 if (unlikely(!cmdiocbq))
4100 if (cmdiocbq->cmd_flag & LPFC_DRIVER_ABORTED)
4101 cmdiocbq->cmd_flag &= ~LPFC_DRIVER_ABORTED;
4102 if (cmdiocbq->cmd_cmpl) {
4103 spin_unlock_irqrestore(&phba->hbalock, iflag);
4104 cmdiocbq->cmd_cmpl(phba, cmdiocbq, &rspiocbq);
4105 spin_lock_irqsave(&phba->hbalock, iflag);
4108 case LPFC_UNSOL_IOCB:
4109 spin_unlock_irqrestore(&phba->hbalock, iflag);
4110 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
4111 spin_lock_irqsave(&phba->hbalock, iflag);
4114 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
4115 char adaptermsg[LPFC_MAX_ADPTMSG];
4116 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
4117 memcpy(&adaptermsg[0], (uint8_t *) irsp,
4119 dev_warn(&((phba->pcidev)->dev),
4121 phba->brd_no, adaptermsg);
4123 /* Unknown IOCB command */
4124 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4125 "0334 Unknown IOCB command "
4126 "Data: x%x, x%x x%x x%x x%x\n",
4127 type, irsp->ulpCommand,
4136 * The response IOCB has been processed. Update the ring
4137 * pointer in SLIM. If the port response put pointer has not
4138 * been updated, sync the pgp->rspPutInx and fetch the new port
4139 * response put pointer.
4141 writel(pring->sli.sli3.rspidx,
4142 &phba->host_gp[pring->ringno].rspGetInx);
4144 if (pring->sli.sli3.rspidx == portRspPut)
4145 portRspPut = le32_to_cpu(pgp->rspPutInx);
4148 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
4149 pring->stats.iocb_rsp_full++;
4150 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
4151 writel(status, phba->CAregaddr);
4152 readl(phba->CAregaddr);
4154 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
4155 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
4156 pring->stats.iocb_cmd_empty++;
4158 /* Force update of the local copy of cmdGetInx */
4159 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
4160 lpfc_sli_resume_iocb(phba, pring);
4162 if ((pring->lpfc_sli_cmd_available))
4163 (pring->lpfc_sli_cmd_available) (phba, pring);
4167 phba->fcp_ring_in_use = 0;
4168 spin_unlock_irqrestore(&phba->hbalock, iflag);
4173 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
4174 * @phba: Pointer to HBA context object.
4175 * @pring: Pointer to driver SLI ring object.
4176 * @rspiocbp: Pointer to driver response IOCB object.
4178 * This function is called from the worker thread when there is a slow-path
4179 * response IOCB to process. This function chains all the response iocbs until
4180 * seeing the iocb with the LE bit set. The function will call
4181 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
4182 * completion of a command iocb. The function will call the
4183 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
4184 * The function frees the resources or calls the completion handler if this
4185 * iocb is an abort completion. The function returns NULL when the response
4186 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
4187 * this function shall chain the iocb on to the iocb_continueq and return the
4188 * response iocb passed in.
4190 static struct lpfc_iocbq *
4191 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4192 struct lpfc_iocbq *rspiocbp)
4194 struct lpfc_iocbq *saveq;
4195 struct lpfc_iocbq *cmdiocb;
4196 struct lpfc_iocbq *next_iocb;
4198 uint32_t free_saveq;
4200 lpfc_iocb_type type;
4201 unsigned long iflag;
4202 u32 ulp_status = get_job_ulpstatus(phba, rspiocbp);
4203 u32 ulp_word4 = get_job_word4(phba, rspiocbp);
4204 u32 ulp_command = get_job_cmnd(phba, rspiocbp);
4207 spin_lock_irqsave(&phba->hbalock, iflag);
4208 /* First add the response iocb to the countinueq list */
4209 list_add_tail(&rspiocbp->list, &pring->iocb_continueq);
4210 pring->iocb_continueq_cnt++;
4213 * By default, the driver expects to free all resources
4214 * associated with this iocb completion.
4217 saveq = list_get_first(&pring->iocb_continueq,
4218 struct lpfc_iocbq, list);
4219 list_del_init(&pring->iocb_continueq);
4220 pring->iocb_continueq_cnt = 0;
4222 pring->stats.iocb_rsp++;
4225 * If resource errors reported from HBA, reduce
4226 * queuedepths of the SCSI device.
4228 if (ulp_status == IOSTAT_LOCAL_REJECT &&
4229 ((ulp_word4 & IOERR_PARAM_MASK) ==
4230 IOERR_NO_RESOURCES)) {
4231 spin_unlock_irqrestore(&phba->hbalock, iflag);
4232 phba->lpfc_rampdown_queue_depth(phba);
4233 spin_lock_irqsave(&phba->hbalock, iflag);
4237 /* Rsp ring <ringno> error: IOCB */
4238 if (phba->sli_rev < LPFC_SLI_REV4) {
4239 irsp = &rspiocbp->iocb;
4240 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4241 "0328 Rsp Ring %d error: ulp_status x%x "
4243 "x%08x x%08x x%08x x%08x "
4244 "x%08x x%08x x%08x x%08x "
4245 "x%08x x%08x x%08x x%08x "
4246 "x%08x x%08x x%08x x%08x\n",
4247 pring->ringno, ulp_status,
4248 get_job_ulpword(rspiocbp, 0),
4249 get_job_ulpword(rspiocbp, 1),
4250 get_job_ulpword(rspiocbp, 2),
4251 get_job_ulpword(rspiocbp, 3),
4252 get_job_ulpword(rspiocbp, 4),
4253 get_job_ulpword(rspiocbp, 5),
4254 *(((uint32_t *)irsp) + 6),
4255 *(((uint32_t *)irsp) + 7),
4256 *(((uint32_t *)irsp) + 8),
4257 *(((uint32_t *)irsp) + 9),
4258 *(((uint32_t *)irsp) + 10),
4259 *(((uint32_t *)irsp) + 11),
4260 *(((uint32_t *)irsp) + 12),
4261 *(((uint32_t *)irsp) + 13),
4262 *(((uint32_t *)irsp) + 14),
4263 *(((uint32_t *)irsp) + 15));
4265 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4266 "0321 Rsp Ring %d error: "
4268 "x%x x%x x%x x%x\n",
4270 rspiocbp->wcqe_cmpl.word0,
4271 rspiocbp->wcqe_cmpl.total_data_placed,
4272 rspiocbp->wcqe_cmpl.parameter,
4273 rspiocbp->wcqe_cmpl.word3);
4279 * Fetch the iocb command type and call the correct completion
4280 * routine. Solicited and Unsolicited IOCBs on the ELS ring
4281 * get freed back to the lpfc_iocb_list by the discovery
4284 cmd_type = ulp_command & CMD_IOCB_MASK;
4285 type = lpfc_sli_iocb_cmd_type(cmd_type);
4288 spin_unlock_irqrestore(&phba->hbalock, iflag);
4289 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
4290 spin_lock_irqsave(&phba->hbalock, iflag);
4292 case LPFC_UNSOL_IOCB:
4293 spin_unlock_irqrestore(&phba->hbalock, iflag);
4294 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
4295 spin_lock_irqsave(&phba->hbalock, iflag);
4299 case LPFC_ABORT_IOCB:
4301 if (ulp_command != CMD_XRI_ABORTED_CX)
4302 cmdiocb = lpfc_sli_iocbq_lookup(phba, pring,
4305 /* Call the specified completion routine */
4306 if (cmdiocb->cmd_cmpl) {
4307 spin_unlock_irqrestore(&phba->hbalock, iflag);
4308 cmdiocb->cmd_cmpl(phba, cmdiocb, saveq);
4309 spin_lock_irqsave(&phba->hbalock, iflag);
4311 __lpfc_sli_release_iocbq(phba, cmdiocb);
4315 case LPFC_UNKNOWN_IOCB:
4316 if (ulp_command == CMD_ADAPTER_MSG) {
4317 char adaptermsg[LPFC_MAX_ADPTMSG];
4319 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
4320 memcpy(&adaptermsg[0], (uint8_t *)&rspiocbp->wqe,
4322 dev_warn(&((phba->pcidev)->dev),
4324 phba->brd_no, adaptermsg);
4326 /* Unknown command */
4327 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4328 "0335 Unknown IOCB "
4329 "command Data: x%x "
4333 get_wqe_reqtag(rspiocbp),
4334 get_job_ulpcontext(phba, rspiocbp));
4340 list_for_each_entry_safe(rspiocbp, next_iocb,
4341 &saveq->list, list) {
4342 list_del_init(&rspiocbp->list);
4343 __lpfc_sli_release_iocbq(phba, rspiocbp);
4345 __lpfc_sli_release_iocbq(phba, saveq);
4348 spin_unlock_irqrestore(&phba->hbalock, iflag);
4353 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
4354 * @phba: Pointer to HBA context object.
4355 * @pring: Pointer to driver SLI ring object.
4356 * @mask: Host attention register mask for this ring.
4358 * This routine wraps the actual slow_ring event process routine from the
4359 * API jump table function pointer from the lpfc_hba struct.
4362 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
4363 struct lpfc_sli_ring *pring, uint32_t mask)
4365 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
4369 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
4370 * @phba: Pointer to HBA context object.
4371 * @pring: Pointer to driver SLI ring object.
4372 * @mask: Host attention register mask for this ring.
4374 * This function is called from the worker thread when there is a ring event
4375 * for non-fcp rings. The caller does not hold any lock. The function will
4376 * remove each response iocb in the response ring and calls the handle
4377 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
4380 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
4381 struct lpfc_sli_ring *pring, uint32_t mask)
4383 struct lpfc_pgp *pgp;
4385 IOCB_t *irsp = NULL;
4386 struct lpfc_iocbq *rspiocbp = NULL;
4387 uint32_t portRspPut, portRspMax;
4388 unsigned long iflag;
4391 pgp = &phba->port_gp[pring->ringno];
4392 spin_lock_irqsave(&phba->hbalock, iflag);
4393 pring->stats.iocb_event++;
4396 * The next available response entry should never exceed the maximum
4397 * entries. If it does, treat it as an adapter hardware error.
4399 portRspMax = pring->sli.sli3.numRiocb;
4400 portRspPut = le32_to_cpu(pgp->rspPutInx);
4401 if (portRspPut >= portRspMax) {
4403 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
4404 * rsp ring <portRspMax>
4406 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4407 "0303 Ring %d handler: portRspPut %d "
4408 "is bigger than rsp ring %d\n",
4409 pring->ringno, portRspPut, portRspMax);
4411 phba->link_state = LPFC_HBA_ERROR;
4412 spin_unlock_irqrestore(&phba->hbalock, iflag);
4414 phba->work_hs = HS_FFER3;
4415 lpfc_handle_eratt(phba);
4421 while (pring->sli.sli3.rspidx != portRspPut) {
4423 * Build a completion list and call the appropriate handler.
4424 * The process is to get the next available response iocb, get
4425 * a free iocb from the list, copy the response data into the
4426 * free iocb, insert to the continuation list, and update the
4427 * next response index to slim. This process makes response
4428 * iocb's in the ring available to DMA as fast as possible but
4429 * pays a penalty for a copy operation. Since the iocb is
4430 * only 32 bytes, this penalty is considered small relative to
4431 * the PCI reads for register values and a slim write. When
4432 * the ulpLe field is set, the entire Command has been
4435 entry = lpfc_resp_iocb(phba, pring);
4437 phba->last_completion_time = jiffies;
4438 rspiocbp = __lpfc_sli_get_iocbq(phba);
4439 if (rspiocbp == NULL) {
4440 printk(KERN_ERR "%s: out of buffers! Failing "
4441 "completion.\n", __func__);
4445 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
4446 phba->iocb_rsp_size);
4447 irsp = &rspiocbp->iocb;
4449 if (++pring->sli.sli3.rspidx >= portRspMax)
4450 pring->sli.sli3.rspidx = 0;
4452 if (pring->ringno == LPFC_ELS_RING) {
4453 lpfc_debugfs_slow_ring_trc(phba,
4454 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
4455 *(((uint32_t *) irsp) + 4),
4456 *(((uint32_t *) irsp) + 6),
4457 *(((uint32_t *) irsp) + 7));
4460 writel(pring->sli.sli3.rspidx,
4461 &phba->host_gp[pring->ringno].rspGetInx);
4463 spin_unlock_irqrestore(&phba->hbalock, iflag);
4464 /* Handle the response IOCB */
4465 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
4466 spin_lock_irqsave(&phba->hbalock, iflag);
4469 * If the port response put pointer has not been updated, sync
4470 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
4471 * response put pointer.
4473 if (pring->sli.sli3.rspidx == portRspPut) {
4474 portRspPut = le32_to_cpu(pgp->rspPutInx);
4476 } /* while (pring->sli.sli3.rspidx != portRspPut) */
4478 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
4479 /* At least one response entry has been freed */
4480 pring->stats.iocb_rsp_full++;
4481 /* SET RxRE_RSP in Chip Att register */
4482 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
4483 writel(status, phba->CAregaddr);
4484 readl(phba->CAregaddr); /* flush */
4486 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
4487 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
4488 pring->stats.iocb_cmd_empty++;
4490 /* Force update of the local copy of cmdGetInx */
4491 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
4492 lpfc_sli_resume_iocb(phba, pring);
4494 if ((pring->lpfc_sli_cmd_available))
4495 (pring->lpfc_sli_cmd_available) (phba, pring);
4499 spin_unlock_irqrestore(&phba->hbalock, iflag);
4504 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
4505 * @phba: Pointer to HBA context object.
4506 * @pring: Pointer to driver SLI ring object.
4507 * @mask: Host attention register mask for this ring.
4509 * This function is called from the worker thread when there is a pending
4510 * ELS response iocb on the driver internal slow-path response iocb worker
4511 * queue. The caller does not hold any lock. The function will remove each
4512 * response iocb from the response worker queue and calls the handle
4513 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
4516 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
4517 struct lpfc_sli_ring *pring, uint32_t mask)
4519 struct lpfc_iocbq *irspiocbq;
4520 struct hbq_dmabuf *dmabuf;
4521 struct lpfc_cq_event *cq_event;
4522 unsigned long iflag;
4525 spin_lock_irqsave(&phba->hbalock, iflag);
4526 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
4527 spin_unlock_irqrestore(&phba->hbalock, iflag);
4528 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
4529 /* Get the response iocb from the head of work queue */
4530 spin_lock_irqsave(&phba->hbalock, iflag);
4531 list_remove_head(&phba->sli4_hba.sp_queue_event,
4532 cq_event, struct lpfc_cq_event, list);
4533 spin_unlock_irqrestore(&phba->hbalock, iflag);
4535 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
4536 case CQE_CODE_COMPL_WQE:
4537 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
4539 /* Translate ELS WCQE to response IOCBQ */
4540 irspiocbq = lpfc_sli4_els_preprocess_rspiocbq(phba,
4543 lpfc_sli_sp_handle_rspiocb(phba, pring,
4547 case CQE_CODE_RECEIVE:
4548 case CQE_CODE_RECEIVE_V1:
4549 dmabuf = container_of(cq_event, struct hbq_dmabuf,
4551 lpfc_sli4_handle_received_buffer(phba, dmabuf);
4558 /* Limit the number of events to 64 to avoid soft lockups */
4565 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
4566 * @phba: Pointer to HBA context object.
4567 * @pring: Pointer to driver SLI ring object.
4569 * This function aborts all iocbs in the given ring and frees all the iocb
4570 * objects in txq. This function issues an abort iocb for all the iocb commands
4571 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
4572 * the return of this function. The caller is not required to hold any locks.
4575 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
4577 LIST_HEAD(tx_completions);
4578 LIST_HEAD(txcmplq_completions);
4579 struct lpfc_iocbq *iocb, *next_iocb;
4582 if (pring->ringno == LPFC_ELS_RING) {
4583 lpfc_fabric_abort_hba(phba);
4585 offline = pci_channel_offline(phba->pcidev);
4587 /* Error everything on txq and txcmplq
4590 if (phba->sli_rev >= LPFC_SLI_REV4) {
4591 spin_lock_irq(&pring->ring_lock);
4592 list_splice_init(&pring->txq, &tx_completions);
4596 list_splice_init(&pring->txcmplq,
4597 &txcmplq_completions);
4599 /* Next issue ABTS for everything on the txcmplq */
4600 list_for_each_entry_safe(iocb, next_iocb,
4601 &pring->txcmplq, list)
4602 lpfc_sli_issue_abort_iotag(phba, pring,
4605 spin_unlock_irq(&pring->ring_lock);
4607 spin_lock_irq(&phba->hbalock);
4608 list_splice_init(&pring->txq, &tx_completions);
4612 list_splice_init(&pring->txcmplq, &txcmplq_completions);
4614 /* Next issue ABTS for everything on the txcmplq */
4615 list_for_each_entry_safe(iocb, next_iocb,
4616 &pring->txcmplq, list)
4617 lpfc_sli_issue_abort_iotag(phba, pring,
4620 spin_unlock_irq(&phba->hbalock);
4624 /* Cancel all the IOCBs from the completions list */
4625 lpfc_sli_cancel_iocbs(phba, &txcmplq_completions,
4626 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
4628 /* Make sure HBA is alive */
4629 lpfc_issue_hb_tmo(phba);
4631 /* Cancel all the IOCBs from the completions list */
4632 lpfc_sli_cancel_iocbs(phba, &tx_completions, IOSTAT_LOCAL_REJECT,
4637 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
4638 * @phba: Pointer to HBA context object.
4640 * This function aborts all iocbs in FCP rings and frees all the iocb
4641 * objects in txq. This function issues an abort iocb for all the iocb commands
4642 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
4643 * the return of this function. The caller is not required to hold any locks.
4646 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
4648 struct lpfc_sli *psli = &phba->sli;
4649 struct lpfc_sli_ring *pring;
4652 /* Look on all the FCP Rings for the iotag */
4653 if (phba->sli_rev >= LPFC_SLI_REV4) {
4654 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4655 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4656 lpfc_sli_abort_iocb_ring(phba, pring);
4659 pring = &psli->sli3_ring[LPFC_FCP_RING];
4660 lpfc_sli_abort_iocb_ring(phba, pring);
4665 * lpfc_sli_flush_io_rings - flush all iocbs in the IO ring
4666 * @phba: Pointer to HBA context object.
4668 * This function flushes all iocbs in the IO ring and frees all the iocb
4669 * objects in txq and txcmplq. This function will not issue abort iocbs
4670 * for all the iocb commands in txcmplq, they will just be returned with
4671 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
4672 * slot has been permanently disabled.
4675 lpfc_sli_flush_io_rings(struct lpfc_hba *phba)
4679 struct lpfc_sli *psli = &phba->sli;
4680 struct lpfc_sli_ring *pring;
4682 struct lpfc_iocbq *piocb, *next_iocb;
4684 spin_lock_irq(&phba->hbalock);
4685 /* Indicate the I/O queues are flushed */
4686 phba->hba_flag |= HBA_IOQ_FLUSH;
4687 spin_unlock_irq(&phba->hbalock);
4689 /* Look on all the FCP Rings for the iotag */
4690 if (phba->sli_rev >= LPFC_SLI_REV4) {
4691 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4692 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4694 spin_lock_irq(&pring->ring_lock);
4695 /* Retrieve everything on txq */
4696 list_splice_init(&pring->txq, &txq);
4697 list_for_each_entry_safe(piocb, next_iocb,
4698 &pring->txcmplq, list)
4699 piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
4700 /* Retrieve everything on the txcmplq */
4701 list_splice_init(&pring->txcmplq, &txcmplq);
4703 pring->txcmplq_cnt = 0;
4704 spin_unlock_irq(&pring->ring_lock);
4707 lpfc_sli_cancel_iocbs(phba, &txq,
4708 IOSTAT_LOCAL_REJECT,
4710 /* Flush the txcmplq */
4711 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4712 IOSTAT_LOCAL_REJECT,
4714 if (unlikely(pci_channel_offline(phba->pcidev)))
4715 lpfc_sli4_io_xri_aborted(phba, NULL, 0);
4718 pring = &psli->sli3_ring[LPFC_FCP_RING];
4720 spin_lock_irq(&phba->hbalock);
4721 /* Retrieve everything on txq */
4722 list_splice_init(&pring->txq, &txq);
4723 list_for_each_entry_safe(piocb, next_iocb,
4724 &pring->txcmplq, list)
4725 piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
4726 /* Retrieve everything on the txcmplq */
4727 list_splice_init(&pring->txcmplq, &txcmplq);
4729 pring->txcmplq_cnt = 0;
4730 spin_unlock_irq(&phba->hbalock);
4733 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
4735 /* Flush the txcmpq */
4736 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
4742 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
4743 * @phba: Pointer to HBA context object.
4744 * @mask: Bit mask to be checked.
4746 * This function reads the host status register and compares
4747 * with the provided bit mask to check if HBA completed
4748 * the restart. This function will wait in a loop for the
4749 * HBA to complete restart. If the HBA does not restart within
4750 * 15 iterations, the function will reset the HBA again. The
4751 * function returns 1 when HBA fail to restart otherwise returns
4755 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
4761 /* Read the HBA Host Status Register */
4762 if (lpfc_readl(phba->HSregaddr, &status))
4765 phba->hba_flag |= HBA_NEEDS_CFG_PORT;
4768 * Check status register every 100ms for 5 retries, then every
4769 * 500ms for 5, then every 2.5 sec for 5, then reset board and
4770 * every 2.5 sec for 4.
4771 * Break our of the loop if errors occurred during init.
4773 while (((status & mask) != mask) &&
4774 !(status & HS_FFERM) &&
4786 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4787 lpfc_sli_brdrestart(phba);
4789 /* Read the HBA Host Status Register */
4790 if (lpfc_readl(phba->HSregaddr, &status)) {
4796 /* Check to see if any errors occurred during init */
4797 if ((status & HS_FFERM) || (i >= 20)) {
4798 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4799 "2751 Adapter failed to restart, "
4800 "status reg x%x, FW Data: A8 x%x AC x%x\n",
4802 readl(phba->MBslimaddr + 0xa8),
4803 readl(phba->MBslimaddr + 0xac));
4804 phba->link_state = LPFC_HBA_ERROR;
4812 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
4813 * @phba: Pointer to HBA context object.
4814 * @mask: Bit mask to be checked.
4816 * This function checks the host status register to check if HBA is
4817 * ready. This function will wait in a loop for the HBA to be ready
4818 * If the HBA is not ready , the function will will reset the HBA PCI
4819 * function again. The function returns 1 when HBA fail to be ready
4820 * otherwise returns zero.
4823 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
4828 /* Read the HBA Host Status Register */
4829 status = lpfc_sli4_post_status_check(phba);
4832 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4833 lpfc_sli_brdrestart(phba);
4834 status = lpfc_sli4_post_status_check(phba);
4837 /* Check to see if any errors occurred during init */
4839 phba->link_state = LPFC_HBA_ERROR;
4842 phba->sli4_hba.intr_enable = 0;
4844 phba->hba_flag &= ~HBA_SETUP;
4849 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
4850 * @phba: Pointer to HBA context object.
4851 * @mask: Bit mask to be checked.
4853 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
4854 * from the API jump table function pointer from the lpfc_hba struct.
4857 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
4859 return phba->lpfc_sli_brdready(phba, mask);
4862 #define BARRIER_TEST_PATTERN (0xdeadbeef)
4865 * lpfc_reset_barrier - Make HBA ready for HBA reset
4866 * @phba: Pointer to HBA context object.
4868 * This function is called before resetting an HBA. This function is called
4869 * with hbalock held and requests HBA to quiesce DMAs before a reset.
4871 void lpfc_reset_barrier(struct lpfc_hba *phba)
4873 uint32_t __iomem *resp_buf;
4874 uint32_t __iomem *mbox_buf;
4875 volatile struct MAILBOX_word0 mbox;
4876 uint32_t hc_copy, ha_copy, resp_data;
4880 lockdep_assert_held(&phba->hbalock);
4882 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4883 if (hdrtype != PCI_HEADER_TYPE_MFD ||
4884 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4885 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4889 * Tell the other part of the chip to suspend temporarily all
4892 resp_buf = phba->MBslimaddr;
4894 /* Disable the error attention */
4895 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4897 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4898 readl(phba->HCregaddr); /* flush */
4899 phba->link_flag |= LS_IGNORE_ERATT;
4901 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4903 if (ha_copy & HA_ERATT) {
4904 /* Clear Chip error bit */
4905 writel(HA_ERATT, phba->HAregaddr);
4906 phba->pport->stopped = 1;
4910 mbox.mbxCommand = MBX_KILL_BOARD;
4911 mbox.mbxOwner = OWN_CHIP;
4913 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4914 mbox_buf = phba->MBslimaddr;
4915 writel(mbox.word0, mbox_buf);
4917 for (i = 0; i < 50; i++) {
4918 if (lpfc_readl((resp_buf + 1), &resp_data))
4920 if (resp_data != ~(BARRIER_TEST_PATTERN))
4926 if (lpfc_readl((resp_buf + 1), &resp_data))
4928 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4929 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4930 phba->pport->stopped)
4936 mbox.mbxOwner = OWN_HOST;
4938 for (i = 0; i < 500; i++) {
4939 if (lpfc_readl(resp_buf, &resp_data))
4941 if (resp_data != mbox.word0)
4950 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4952 if (!(ha_copy & HA_ERATT))
4958 if (readl(phba->HAregaddr) & HA_ERATT) {
4959 writel(HA_ERATT, phba->HAregaddr);
4960 phba->pport->stopped = 1;
4964 phba->link_flag &= ~LS_IGNORE_ERATT;
4965 writel(hc_copy, phba->HCregaddr);
4966 readl(phba->HCregaddr); /* flush */
4970 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4971 * @phba: Pointer to HBA context object.
4973 * This function issues a kill_board mailbox command and waits for
4974 * the error attention interrupt. This function is called for stopping
4975 * the firmware processing. The caller is not required to hold any
4976 * locks. This function calls lpfc_hba_down_post function to free
4977 * any pending commands after the kill. The function will return 1 when it
4978 * fails to kill the board else will return 0.
4981 lpfc_sli_brdkill(struct lpfc_hba *phba)
4983 struct lpfc_sli *psli;
4993 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4994 "0329 Kill HBA Data: x%x x%x\n",
4995 phba->pport->port_state, psli->sli_flag);
4997 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5001 /* Disable the error attention */
5002 spin_lock_irq(&phba->hbalock);
5003 if (lpfc_readl(phba->HCregaddr, &status)) {
5004 spin_unlock_irq(&phba->hbalock);
5005 mempool_free(pmb, phba->mbox_mem_pool);
5008 status &= ~HC_ERINT_ENA;
5009 writel(status, phba->HCregaddr);
5010 readl(phba->HCregaddr); /* flush */
5011 phba->link_flag |= LS_IGNORE_ERATT;
5012 spin_unlock_irq(&phba->hbalock);
5014 lpfc_kill_board(phba, pmb);
5015 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5016 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5018 if (retval != MBX_SUCCESS) {
5019 if (retval != MBX_BUSY)
5020 mempool_free(pmb, phba->mbox_mem_pool);
5021 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5022 "2752 KILL_BOARD command failed retval %d\n",
5024 spin_lock_irq(&phba->hbalock);
5025 phba->link_flag &= ~LS_IGNORE_ERATT;
5026 spin_unlock_irq(&phba->hbalock);
5030 spin_lock_irq(&phba->hbalock);
5031 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
5032 spin_unlock_irq(&phba->hbalock);
5034 mempool_free(pmb, phba->mbox_mem_pool);
5036 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
5037 * attention every 100ms for 3 seconds. If we don't get ERATT after
5038 * 3 seconds we still set HBA_ERROR state because the status of the
5039 * board is now undefined.
5041 if (lpfc_readl(phba->HAregaddr, &ha_copy))
5043 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
5045 if (lpfc_readl(phba->HAregaddr, &ha_copy))
5049 del_timer_sync(&psli->mbox_tmo);
5050 if (ha_copy & HA_ERATT) {
5051 writel(HA_ERATT, phba->HAregaddr);
5052 phba->pport->stopped = 1;
5054 spin_lock_irq(&phba->hbalock);
5055 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5056 psli->mbox_active = NULL;
5057 phba->link_flag &= ~LS_IGNORE_ERATT;
5058 spin_unlock_irq(&phba->hbalock);
5060 lpfc_hba_down_post(phba);
5061 phba->link_state = LPFC_HBA_ERROR;
5063 return ha_copy & HA_ERATT ? 0 : 1;
5067 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
5068 * @phba: Pointer to HBA context object.
5070 * This function resets the HBA by writing HC_INITFF to the control
5071 * register. After the HBA resets, this function resets all the iocb ring
5072 * indices. This function disables PCI layer parity checking during
5074 * This function returns 0 always.
5075 * The caller is not required to hold any locks.
5078 lpfc_sli_brdreset(struct lpfc_hba *phba)
5080 struct lpfc_sli *psli;
5081 struct lpfc_sli_ring *pring;
5088 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5089 "0325 Reset HBA Data: x%x x%x\n",
5090 (phba->pport) ? phba->pport->port_state : 0,
5093 /* perform board reset */
5094 phba->fc_eventTag = 0;
5095 phba->link_events = 0;
5096 phba->hba_flag |= HBA_NEEDS_CFG_PORT;
5098 phba->pport->fc_myDID = 0;
5099 phba->pport->fc_prevDID = 0;
5102 /* Turn off parity checking and serr during the physical reset */
5103 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value))
5106 pci_write_config_word(phba->pcidev, PCI_COMMAND,
5108 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
5110 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
5112 /* Now toggle INITFF bit in the Host Control Register */
5113 writel(HC_INITFF, phba->HCregaddr);
5115 readl(phba->HCregaddr); /* flush */
5116 writel(0, phba->HCregaddr);
5117 readl(phba->HCregaddr); /* flush */
5119 /* Restore PCI cmd register */
5120 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
5122 /* Initialize relevant SLI info */
5123 for (i = 0; i < psli->num_rings; i++) {
5124 pring = &psli->sli3_ring[i];
5126 pring->sli.sli3.rspidx = 0;
5127 pring->sli.sli3.next_cmdidx = 0;
5128 pring->sli.sli3.local_getidx = 0;
5129 pring->sli.sli3.cmdidx = 0;
5130 pring->missbufcnt = 0;
5133 phba->link_state = LPFC_WARM_START;
5138 * lpfc_sli4_brdreset - Reset a sli-4 HBA
5139 * @phba: Pointer to HBA context object.
5141 * This function resets a SLI4 HBA. This function disables PCI layer parity
5142 * checking during resets the device. The caller is not required to hold
5145 * This function returns 0 on success else returns negative error code.
5148 lpfc_sli4_brdreset(struct lpfc_hba *phba)
5150 struct lpfc_sli *psli = &phba->sli;
5155 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5156 "0295 Reset HBA Data: x%x x%x x%x\n",
5157 phba->pport->port_state, psli->sli_flag,
5160 /* perform board reset */
5161 phba->fc_eventTag = 0;
5162 phba->link_events = 0;
5163 phba->pport->fc_myDID = 0;
5164 phba->pport->fc_prevDID = 0;
5165 phba->hba_flag &= ~HBA_SETUP;
5167 spin_lock_irq(&phba->hbalock);
5168 psli->sli_flag &= ~(LPFC_PROCESS_LA);
5169 phba->fcf.fcf_flag = 0;
5170 spin_unlock_irq(&phba->hbalock);
5172 /* Now physically reset the device */
5173 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5174 "0389 Performing PCI function reset!\n");
5176 /* Turn off parity checking and serr during the physical reset */
5177 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value)) {
5178 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5179 "3205 PCI read Config failed\n");
5183 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
5184 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
5186 /* Perform FCoE PCI function reset before freeing queue memory */
5187 rc = lpfc_pci_function_reset(phba);
5189 /* Restore PCI cmd register */
5190 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
5196 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
5197 * @phba: Pointer to HBA context object.
5199 * This function is called in the SLI initialization code path to
5200 * restart the HBA. The caller is not required to hold any lock.
5201 * This function writes MBX_RESTART mailbox command to the SLIM and
5202 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
5203 * function to free any pending commands. The function enables
5204 * POST only during the first initialization. The function returns zero.
5205 * The function does not guarantee completion of MBX_RESTART mailbox
5206 * command before the return of this function.
5209 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
5211 volatile struct MAILBOX_word0 mb;
5212 struct lpfc_sli *psli;
5213 void __iomem *to_slim;
5215 spin_lock_irq(&phba->hbalock);
5220 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5221 "0337 Restart HBA Data: x%x x%x\n",
5222 (phba->pport) ? phba->pport->port_state : 0,
5226 mb.mbxCommand = MBX_RESTART;
5229 lpfc_reset_barrier(phba);
5231 to_slim = phba->MBslimaddr;
5232 writel(mb.word0, to_slim);
5233 readl(to_slim); /* flush */
5235 /* Only skip post after fc_ffinit is completed */
5236 if (phba->pport && phba->pport->port_state)
5237 mb.word0 = 1; /* This is really setting up word1 */
5239 mb.word0 = 0; /* This is really setting up word1 */
5240 to_slim = phba->MBslimaddr + sizeof (uint32_t);
5241 writel(mb.word0, to_slim);
5242 readl(to_slim); /* flush */
5244 lpfc_sli_brdreset(phba);
5246 phba->pport->stopped = 0;
5247 phba->link_state = LPFC_INIT_START;
5249 spin_unlock_irq(&phba->hbalock);
5251 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
5252 psli->stats_start = ktime_get_seconds();
5254 /* Give the INITFF and Post time to settle. */
5257 lpfc_hba_down_post(phba);
5263 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
5264 * @phba: Pointer to HBA context object.
5266 * This function is called in the SLI initialization code path to restart
5267 * a SLI4 HBA. The caller is not required to hold any lock.
5268 * At the end of the function, it calls lpfc_hba_down_post function to
5269 * free any pending commands.
5272 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
5274 struct lpfc_sli *psli = &phba->sli;
5278 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5279 "0296 Restart HBA Data: x%x x%x\n",
5280 phba->pport->port_state, psli->sli_flag);
5282 rc = lpfc_sli4_brdreset(phba);
5284 phba->link_state = LPFC_HBA_ERROR;
5285 goto hba_down_queue;
5288 spin_lock_irq(&phba->hbalock);
5289 phba->pport->stopped = 0;
5290 phba->link_state = LPFC_INIT_START;
5292 /* Preserve FA-PWWN expectation */
5293 phba->sli4_hba.fawwpn_flag &= LPFC_FAWWPN_FABRIC;
5294 spin_unlock_irq(&phba->hbalock);
5296 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
5297 psli->stats_start = ktime_get_seconds();
5300 lpfc_hba_down_post(phba);
5301 lpfc_sli4_queue_destroy(phba);
5307 * lpfc_sli_brdrestart - Wrapper func for restarting hba
5308 * @phba: Pointer to HBA context object.
5310 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
5311 * API jump table function pointer from the lpfc_hba struct.
5314 lpfc_sli_brdrestart(struct lpfc_hba *phba)
5316 return phba->lpfc_sli_brdrestart(phba);
5320 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
5321 * @phba: Pointer to HBA context object.
5323 * This function is called after a HBA restart to wait for successful
5324 * restart of the HBA. Successful restart of the HBA is indicated by
5325 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
5326 * iteration, the function will restart the HBA again. The function returns
5327 * zero if HBA successfully restarted else returns negative error code.
5330 lpfc_sli_chipset_init(struct lpfc_hba *phba)
5332 uint32_t status, i = 0;
5334 /* Read the HBA Host Status Register */
5335 if (lpfc_readl(phba->HSregaddr, &status))
5338 /* Check status register to see what current state is */
5340 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
5342 /* Check every 10ms for 10 retries, then every 100ms for 90
5343 * retries, then every 1 sec for 50 retires for a total of
5344 * ~60 seconds before reset the board again and check every
5345 * 1 sec for 50 retries. The up to 60 seconds before the
5346 * board ready is required by the Falcon FIPS zeroization
5347 * complete, and any reset the board in between shall cause
5348 * restart of zeroization, further delay the board ready.
5351 /* Adapter failed to init, timeout, status reg
5353 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5354 "0436 Adapter failed to init, "
5355 "timeout, status reg x%x, "
5356 "FW Data: A8 x%x AC x%x\n", status,
5357 readl(phba->MBslimaddr + 0xa8),
5358 readl(phba->MBslimaddr + 0xac));
5359 phba->link_state = LPFC_HBA_ERROR;
5363 /* Check to see if any errors occurred during init */
5364 if (status & HS_FFERM) {
5365 /* ERROR: During chipset initialization */
5366 /* Adapter failed to init, chipset, status reg
5368 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5369 "0437 Adapter failed to init, "
5370 "chipset, status reg x%x, "
5371 "FW Data: A8 x%x AC x%x\n", status,
5372 readl(phba->MBslimaddr + 0xa8),
5373 readl(phba->MBslimaddr + 0xac));
5374 phba->link_state = LPFC_HBA_ERROR;
5387 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
5388 lpfc_sli_brdrestart(phba);
5390 /* Read the HBA Host Status Register */
5391 if (lpfc_readl(phba->HSregaddr, &status))
5395 /* Check to see if any errors occurred during init */
5396 if (status & HS_FFERM) {
5397 /* ERROR: During chipset initialization */
5398 /* Adapter failed to init, chipset, status reg <status> */
5399 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5400 "0438 Adapter failed to init, chipset, "
5402 "FW Data: A8 x%x AC x%x\n", status,
5403 readl(phba->MBslimaddr + 0xa8),
5404 readl(phba->MBslimaddr + 0xac));
5405 phba->link_state = LPFC_HBA_ERROR;
5409 phba->hba_flag |= HBA_NEEDS_CFG_PORT;
5411 /* Clear all interrupt enable conditions */
5412 writel(0, phba->HCregaddr);
5413 readl(phba->HCregaddr); /* flush */
5415 /* setup host attn register */
5416 writel(0xffffffff, phba->HAregaddr);
5417 readl(phba->HAregaddr); /* flush */
5422 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
5424 * This function calculates and returns the number of HBQs required to be
5428 lpfc_sli_hbq_count(void)
5430 return ARRAY_SIZE(lpfc_hbq_defs);
5434 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
5436 * This function adds the number of hbq entries in every HBQ to get
5437 * the total number of hbq entries required for the HBA and returns
5441 lpfc_sli_hbq_entry_count(void)
5443 int hbq_count = lpfc_sli_hbq_count();
5447 for (i = 0; i < hbq_count; ++i)
5448 count += lpfc_hbq_defs[i]->entry_count;
5453 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
5455 * This function calculates amount of memory required for all hbq entries
5456 * to be configured and returns the total memory required.
5459 lpfc_sli_hbq_size(void)
5461 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
5465 * lpfc_sli_hbq_setup - configure and initialize HBQs
5466 * @phba: Pointer to HBA context object.
5468 * This function is called during the SLI initialization to configure
5469 * all the HBQs and post buffers to the HBQ. The caller is not
5470 * required to hold any locks. This function will return zero if successful
5471 * else it will return negative error code.
5474 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
5476 int hbq_count = lpfc_sli_hbq_count();
5480 uint32_t hbq_entry_index;
5482 /* Get a Mailbox buffer to setup mailbox
5483 * commands for HBA initialization
5485 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5492 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
5493 phba->link_state = LPFC_INIT_MBX_CMDS;
5494 phba->hbq_in_use = 1;
5496 hbq_entry_index = 0;
5497 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
5498 phba->hbqs[hbqno].next_hbqPutIdx = 0;
5499 phba->hbqs[hbqno].hbqPutIdx = 0;
5500 phba->hbqs[hbqno].local_hbqGetIdx = 0;
5501 phba->hbqs[hbqno].entry_count =
5502 lpfc_hbq_defs[hbqno]->entry_count;
5503 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
5504 hbq_entry_index, pmb);
5505 hbq_entry_index += phba->hbqs[hbqno].entry_count;
5507 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
5508 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
5509 mbxStatus <status>, ring <num> */
5511 lpfc_printf_log(phba, KERN_ERR,
5512 LOG_SLI | LOG_VPORT,
5513 "1805 Adapter failed to init. "
5514 "Data: x%x x%x x%x\n",
5516 pmbox->mbxStatus, hbqno);
5518 phba->link_state = LPFC_HBA_ERROR;
5519 mempool_free(pmb, phba->mbox_mem_pool);
5523 phba->hbq_count = hbq_count;
5525 mempool_free(pmb, phba->mbox_mem_pool);
5527 /* Initially populate or replenish the HBQs */
5528 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
5529 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
5534 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
5535 * @phba: Pointer to HBA context object.
5537 * This function is called during the SLI initialization to configure
5538 * all the HBQs and post buffers to the HBQ. The caller is not
5539 * required to hold any locks. This function will return zero if successful
5540 * else it will return negative error code.
5543 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
5545 phba->hbq_in_use = 1;
5547 * Specific case when the MDS diagnostics is enabled and supported.
5548 * The receive buffer count is truncated to manage the incoming
5551 if (phba->cfg_enable_mds_diags && phba->mds_diags_support)
5552 phba->hbqs[LPFC_ELS_HBQ].entry_count =
5553 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count >> 1;
5555 phba->hbqs[LPFC_ELS_HBQ].entry_count =
5556 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
5557 phba->hbq_count = 1;
5558 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
5559 /* Initially populate or replenish the HBQs */
5564 * lpfc_sli_config_port - Issue config port mailbox command
5565 * @phba: Pointer to HBA context object.
5566 * @sli_mode: sli mode - 2/3
5568 * This function is called by the sli initialization code path
5569 * to issue config_port mailbox command. This function restarts the
5570 * HBA firmware and issues a config_port mailbox command to configure
5571 * the SLI interface in the sli mode specified by sli_mode
5572 * variable. The caller is not required to hold any locks.
5573 * The function returns 0 if successful, else returns negative error
5577 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
5580 uint32_t resetcount = 0, rc = 0, done = 0;
5582 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5584 phba->link_state = LPFC_HBA_ERROR;
5588 phba->sli_rev = sli_mode;
5589 while (resetcount < 2 && !done) {
5590 spin_lock_irq(&phba->hbalock);
5591 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5592 spin_unlock_irq(&phba->hbalock);
5593 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
5594 lpfc_sli_brdrestart(phba);
5595 rc = lpfc_sli_chipset_init(phba);
5599 spin_lock_irq(&phba->hbalock);
5600 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5601 spin_unlock_irq(&phba->hbalock);
5604 /* Call pre CONFIG_PORT mailbox command initialization. A
5605 * value of 0 means the call was successful. Any other
5606 * nonzero value is a failure, but if ERESTART is returned,
5607 * the driver may reset the HBA and try again.
5609 rc = lpfc_config_port_prep(phba);
5610 if (rc == -ERESTART) {
5611 phba->link_state = LPFC_LINK_UNKNOWN;
5616 phba->link_state = LPFC_INIT_MBX_CMDS;
5617 lpfc_config_port(phba, pmb);
5618 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5619 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
5620 LPFC_SLI3_HBQ_ENABLED |
5621 LPFC_SLI3_CRP_ENABLED |
5622 LPFC_SLI3_DSS_ENABLED);
5623 if (rc != MBX_SUCCESS) {
5624 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5625 "0442 Adapter failed to init, mbxCmd x%x "
5626 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
5627 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
5628 spin_lock_irq(&phba->hbalock);
5629 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
5630 spin_unlock_irq(&phba->hbalock);
5633 /* Allow asynchronous mailbox command to go through */
5634 spin_lock_irq(&phba->hbalock);
5635 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5636 spin_unlock_irq(&phba->hbalock);
5639 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
5640 (pmb->u.mb.un.varCfgPort.gasabt == 0))
5641 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5642 "3110 Port did not grant ASABT\n");
5647 goto do_prep_failed;
5649 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
5650 if (!pmb->u.mb.un.varCfgPort.cMA) {
5652 goto do_prep_failed;
5654 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
5655 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
5656 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
5657 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
5658 phba->max_vpi : phba->max_vports;
5662 if (pmb->u.mb.un.varCfgPort.gerbm)
5663 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
5664 if (pmb->u.mb.un.varCfgPort.gcrp)
5665 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
5667 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
5668 phba->port_gp = phba->mbox->us.s3_pgp.port;
5670 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5671 if (pmb->u.mb.un.varCfgPort.gbg == 0) {
5672 phba->cfg_enable_bg = 0;
5673 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
5674 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5675 "0443 Adapter did not grant "
5680 phba->hbq_get = NULL;
5681 phba->port_gp = phba->mbox->us.s2.port;
5685 mempool_free(pmb, phba->mbox_mem_pool);
5691 * lpfc_sli_hba_setup - SLI initialization function
5692 * @phba: Pointer to HBA context object.
5694 * This function is the main SLI initialization function. This function
5695 * is called by the HBA initialization code, HBA reset code and HBA
5696 * error attention handler code. Caller is not required to hold any
5697 * locks. This function issues config_port mailbox command to configure
5698 * the SLI, setup iocb rings and HBQ rings. In the end the function
5699 * calls the config_port_post function to issue init_link mailbox
5700 * command and to start the discovery. The function will return zero
5701 * if successful, else it will return negative error code.
5704 lpfc_sli_hba_setup(struct lpfc_hba *phba)
5710 /* Enable ISR already does config_port because of config_msi mbx */
5711 if (phba->hba_flag & HBA_NEEDS_CFG_PORT) {
5712 rc = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
5715 phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
5717 phba->fcp_embed_io = 0; /* SLI4 FC support only */
5719 if (phba->sli_rev == 3) {
5720 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
5721 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
5723 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
5724 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
5725 phba->sli3_options = 0;
5728 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5729 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
5730 phba->sli_rev, phba->max_vpi);
5731 rc = lpfc_sli_ring_map(phba);
5734 goto lpfc_sli_hba_setup_error;
5736 /* Initialize VPIs. */
5737 if (phba->sli_rev == LPFC_SLI_REV3) {
5739 * The VPI bitmask and physical ID array are allocated
5740 * and initialized once only - at driver load. A port
5741 * reset doesn't need to reinitialize this memory.
5743 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
5744 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
5745 phba->vpi_bmask = kcalloc(longs,
5746 sizeof(unsigned long),
5748 if (!phba->vpi_bmask) {
5750 goto lpfc_sli_hba_setup_error;
5753 phba->vpi_ids = kcalloc(phba->max_vpi + 1,
5756 if (!phba->vpi_ids) {
5757 kfree(phba->vpi_bmask);
5759 goto lpfc_sli_hba_setup_error;
5761 for (i = 0; i < phba->max_vpi; i++)
5762 phba->vpi_ids[i] = i;
5767 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
5768 rc = lpfc_sli_hbq_setup(phba);
5770 goto lpfc_sli_hba_setup_error;
5772 spin_lock_irq(&phba->hbalock);
5773 phba->sli.sli_flag |= LPFC_PROCESS_LA;
5774 spin_unlock_irq(&phba->hbalock);
5776 rc = lpfc_config_port_post(phba);
5778 goto lpfc_sli_hba_setup_error;
5782 lpfc_sli_hba_setup_error:
5783 phba->link_state = LPFC_HBA_ERROR;
5784 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5785 "0445 Firmware initialization failed\n");
5790 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
5791 * @phba: Pointer to HBA context object.
5793 * This function issue a dump mailbox command to read config region
5794 * 23 and parse the records in the region and populate driver
5798 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
5800 LPFC_MBOXQ_t *mboxq;
5801 struct lpfc_dmabuf *mp;
5802 struct lpfc_mqe *mqe;
5803 uint32_t data_length;
5806 /* Program the default value of vlan_id and fc_map */
5807 phba->valid_vlan = 0;
5808 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5809 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5810 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5812 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5816 mqe = &mboxq->u.mqe;
5817 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5819 goto out_free_mboxq;
5822 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
5823 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5825 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5826 "(%d):2571 Mailbox cmd x%x Status x%x "
5827 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5828 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5829 "CQ: x%x x%x x%x x%x\n",
5830 mboxq->vport ? mboxq->vport->vpi : 0,
5831 bf_get(lpfc_mqe_command, mqe),
5832 bf_get(lpfc_mqe_status, mqe),
5833 mqe->un.mb_words[0], mqe->un.mb_words[1],
5834 mqe->un.mb_words[2], mqe->un.mb_words[3],
5835 mqe->un.mb_words[4], mqe->un.mb_words[5],
5836 mqe->un.mb_words[6], mqe->un.mb_words[7],
5837 mqe->un.mb_words[8], mqe->un.mb_words[9],
5838 mqe->un.mb_words[10], mqe->un.mb_words[11],
5839 mqe->un.mb_words[12], mqe->un.mb_words[13],
5840 mqe->un.mb_words[14], mqe->un.mb_words[15],
5841 mqe->un.mb_words[16], mqe->un.mb_words[50],
5843 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5844 mboxq->mcqe.trailer);
5848 goto out_free_mboxq;
5850 data_length = mqe->un.mb_words[5];
5851 if (data_length > DMP_RGN23_SIZE) {
5853 goto out_free_mboxq;
5856 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5860 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED);
5865 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5866 * @phba: pointer to lpfc hba data structure.
5867 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5868 * @vpd: pointer to the memory to hold resulting port vpd data.
5869 * @vpd_size: On input, the number of bytes allocated to @vpd.
5870 * On output, the number of data bytes in @vpd.
5872 * This routine executes a READ_REV SLI4 mailbox command. In
5873 * addition, this routine gets the port vpd data.
5877 * -ENOMEM - could not allocated memory.
5880 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5881 uint8_t *vpd, uint32_t *vpd_size)
5885 struct lpfc_dmabuf *dmabuf;
5886 struct lpfc_mqe *mqe;
5888 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5893 * Get a DMA buffer for the vpd data resulting from the READ_REV
5896 dma_size = *vpd_size;
5897 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, dma_size,
5898 &dmabuf->phys, GFP_KERNEL);
5899 if (!dmabuf->virt) {
5905 * The SLI4 implementation of READ_REV conflicts at word1,
5906 * bits 31:16 and SLI4 adds vpd functionality not present
5907 * in SLI3. This code corrects the conflicts.
5909 lpfc_read_rev(phba, mboxq);
5910 mqe = &mboxq->u.mqe;
5911 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5912 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5913 mqe->un.read_rev.word1 &= 0x0000FFFF;
5914 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5915 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5917 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5919 dma_free_coherent(&phba->pcidev->dev, dma_size,
5920 dmabuf->virt, dmabuf->phys);
5926 * The available vpd length cannot be bigger than the
5927 * DMA buffer passed to the port. Catch the less than
5928 * case and update the caller's size.
5930 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5931 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5933 memcpy(vpd, dmabuf->virt, *vpd_size);
5935 dma_free_coherent(&phba->pcidev->dev, dma_size,
5936 dmabuf->virt, dmabuf->phys);
5942 * lpfc_sli4_get_ctl_attr - Retrieve SLI4 device controller attributes
5943 * @phba: pointer to lpfc hba data structure.
5945 * This routine retrieves SLI4 device physical port name this PCI function
5950 * otherwise - failed to retrieve controller attributes
5953 lpfc_sli4_get_ctl_attr(struct lpfc_hba *phba)
5955 LPFC_MBOXQ_t *mboxq;
5956 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5957 struct lpfc_controller_attribute *cntl_attr;
5958 void *virtaddr = NULL;
5959 uint32_t alloclen, reqlen;
5960 uint32_t shdr_status, shdr_add_status;
5961 union lpfc_sli4_cfg_shdr *shdr;
5964 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5968 /* Send COMMON_GET_CNTL_ATTRIBUTES mbox cmd */
5969 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5970 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5971 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5972 LPFC_SLI4_MBX_NEMBED);
5974 if (alloclen < reqlen) {
5975 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5976 "3084 Allocated DMA memory size (%d) is "
5977 "less than the requested DMA memory size "
5978 "(%d)\n", alloclen, reqlen);
5980 goto out_free_mboxq;
5982 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5983 virtaddr = mboxq->sge_array->addr[0];
5984 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5985 shdr = &mbx_cntl_attr->cfg_shdr;
5986 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5987 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5988 if (shdr_status || shdr_add_status || rc) {
5989 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5990 "3085 Mailbox x%x (x%x/x%x) failed, "
5991 "rc:x%x, status:x%x, add_status:x%x\n",
5992 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5993 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5994 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5995 rc, shdr_status, shdr_add_status);
5997 goto out_free_mboxq;
6000 cntl_attr = &mbx_cntl_attr->cntl_attr;
6001 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6002 phba->sli4_hba.lnk_info.lnk_tp =
6003 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
6004 phba->sli4_hba.lnk_info.lnk_no =
6005 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
6006 phba->sli4_hba.flash_id = bf_get(lpfc_cntl_attr_flash_id, cntl_attr);
6007 phba->sli4_hba.asic_rev = bf_get(lpfc_cntl_attr_asic_rev, cntl_attr);
6009 memset(phba->BIOSVersion, 0, sizeof(phba->BIOSVersion));
6010 strlcat(phba->BIOSVersion, (char *)cntl_attr->bios_ver_str,
6011 sizeof(phba->BIOSVersion));
6013 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6014 "3086 lnk_type:%d, lnk_numb:%d, bios_ver:%s, "
6015 "flash_id: x%02x, asic_rev: x%02x\n",
6016 phba->sli4_hba.lnk_info.lnk_tp,
6017 phba->sli4_hba.lnk_info.lnk_no,
6018 phba->BIOSVersion, phba->sli4_hba.flash_id,
6019 phba->sli4_hba.asic_rev);
6021 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
6022 lpfc_sli4_mbox_cmd_free(phba, mboxq);
6024 mempool_free(mboxq, phba->mbox_mem_pool);
6029 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
6030 * @phba: pointer to lpfc hba data structure.
6032 * This routine retrieves SLI4 device physical port name this PCI function
6037 * otherwise - failed to retrieve physical port name
6040 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
6042 LPFC_MBOXQ_t *mboxq;
6043 struct lpfc_mbx_get_port_name *get_port_name;
6044 uint32_t shdr_status, shdr_add_status;
6045 union lpfc_sli4_cfg_shdr *shdr;
6046 char cport_name = 0;
6049 /* We assume nothing at this point */
6050 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
6051 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
6053 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6056 /* obtain link type and link number via READ_CONFIG */
6057 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
6058 lpfc_sli4_read_config(phba);
6060 if (phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG)
6061 phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;
6063 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
6064 goto retrieve_ppname;
6066 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
6067 rc = lpfc_sli4_get_ctl_attr(phba);
6069 goto out_free_mboxq;
6072 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6073 LPFC_MBOX_OPCODE_GET_PORT_NAME,
6074 sizeof(struct lpfc_mbx_get_port_name) -
6075 sizeof(struct lpfc_sli4_cfg_mhdr),
6076 LPFC_SLI4_MBX_EMBED);
6077 get_port_name = &mboxq->u.mqe.un.get_port_name;
6078 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
6079 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
6080 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
6081 phba->sli4_hba.lnk_info.lnk_tp);
6082 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6083 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6084 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6085 if (shdr_status || shdr_add_status || rc) {
6086 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6087 "3087 Mailbox x%x (x%x/x%x) failed: "
6088 "rc:x%x, status:x%x, add_status:x%x\n",
6089 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6090 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
6091 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
6092 rc, shdr_status, shdr_add_status);
6094 goto out_free_mboxq;
6096 switch (phba->sli4_hba.lnk_info.lnk_no) {
6097 case LPFC_LINK_NUMBER_0:
6098 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
6099 &get_port_name->u.response);
6100 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
6102 case LPFC_LINK_NUMBER_1:
6103 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
6104 &get_port_name->u.response);
6105 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
6107 case LPFC_LINK_NUMBER_2:
6108 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
6109 &get_port_name->u.response);
6110 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
6112 case LPFC_LINK_NUMBER_3:
6113 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
6114 &get_port_name->u.response);
6115 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
6121 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
6122 phba->Port[0] = cport_name;
6123 phba->Port[1] = '\0';
6124 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6125 "3091 SLI get port name: %s\n", phba->Port);
6129 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
6130 lpfc_sli4_mbox_cmd_free(phba, mboxq);
6132 mempool_free(mboxq, phba->mbox_mem_pool);
6137 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
6138 * @phba: pointer to lpfc hba data structure.
6140 * This routine is called to explicitly arm the SLI4 device's completion and
6144 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
6147 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
6148 struct lpfc_sli4_hdw_queue *qp;
6149 struct lpfc_queue *eq;
6151 sli4_hba->sli4_write_cq_db(phba, sli4_hba->mbx_cq, 0, LPFC_QUEUE_REARM);
6152 sli4_hba->sli4_write_cq_db(phba, sli4_hba->els_cq, 0, LPFC_QUEUE_REARM);
6153 if (sli4_hba->nvmels_cq)
6154 sli4_hba->sli4_write_cq_db(phba, sli4_hba->nvmels_cq, 0,
6157 if (sli4_hba->hdwq) {
6158 /* Loop thru all Hardware Queues */
6159 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
6160 qp = &sli4_hba->hdwq[qidx];
6161 /* ARM the corresponding CQ */
6162 sli4_hba->sli4_write_cq_db(phba, qp->io_cq, 0,
6166 /* Loop thru all IRQ vectors */
6167 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
6168 eq = sli4_hba->hba_eq_hdl[qidx].eq;
6169 /* ARM the corresponding EQ */
6170 sli4_hba->sli4_write_eq_db(phba, eq,
6171 0, LPFC_QUEUE_REARM);
6175 if (phba->nvmet_support) {
6176 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
6177 sli4_hba->sli4_write_cq_db(phba,
6178 sli4_hba->nvmet_cqset[qidx], 0,
6185 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
6186 * @phba: Pointer to HBA context object.
6187 * @type: The resource extent type.
6188 * @extnt_count: buffer to hold port available extent count.
6189 * @extnt_size: buffer to hold element count per extent.
6191 * This function calls the port and retrievs the number of available
6192 * extents and their size for a particular extent type.
6194 * Returns: 0 if successful. Nonzero otherwise.
6197 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
6198 uint16_t *extnt_count, uint16_t *extnt_size)
6203 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
6209 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6213 /* Find out how many extents are available for this resource type */
6214 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
6215 sizeof(struct lpfc_sli4_cfg_mhdr));
6216 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6217 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
6218 length, LPFC_SLI4_MBX_EMBED);
6220 /* Send an extents count of 0 - the GET doesn't use it. */
6221 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6222 LPFC_SLI4_MBX_EMBED);
6228 if (!phba->sli4_hba.intr_enable)
6229 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6231 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6232 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6239 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
6240 if (bf_get(lpfc_mbox_hdr_status,
6241 &rsrc_info->header.cfg_shdr.response)) {
6242 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6243 "2930 Failed to get resource extents "
6244 "Status 0x%x Add'l Status 0x%x\n",
6245 bf_get(lpfc_mbox_hdr_status,
6246 &rsrc_info->header.cfg_shdr.response),
6247 bf_get(lpfc_mbox_hdr_add_status,
6248 &rsrc_info->header.cfg_shdr.response));
6253 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
6255 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
6258 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6259 "3162 Retrieved extents type-%d from port: count:%d, "
6260 "size:%d\n", type, *extnt_count, *extnt_size);
6263 mempool_free(mbox, phba->mbox_mem_pool);
6268 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
6269 * @phba: Pointer to HBA context object.
6270 * @type: The extent type to check.
6272 * This function reads the current available extents from the port and checks
6273 * if the extent count or extent size has changed since the last access.
6274 * Callers use this routine post port reset to understand if there is a
6275 * extent reprovisioning requirement.
6278 * -Error: error indicates problem.
6279 * 1: Extent count or size has changed.
6283 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
6285 uint16_t curr_ext_cnt, rsrc_ext_cnt;
6286 uint16_t size_diff, rsrc_ext_size;
6288 struct lpfc_rsrc_blks *rsrc_entry;
6289 struct list_head *rsrc_blk_list = NULL;
6293 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
6300 case LPFC_RSC_TYPE_FCOE_RPI:
6301 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
6303 case LPFC_RSC_TYPE_FCOE_VPI:
6304 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
6306 case LPFC_RSC_TYPE_FCOE_XRI:
6307 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
6309 case LPFC_RSC_TYPE_FCOE_VFI:
6310 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
6316 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
6318 if (rsrc_entry->rsrc_size != rsrc_ext_size)
6322 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
6329 * lpfc_sli4_cfg_post_extnts -
6330 * @phba: Pointer to HBA context object.
6331 * @extnt_cnt: number of available extents.
6332 * @type: the extent type (rpi, xri, vfi, vpi).
6333 * @emb: buffer to hold either MBX_EMBED or MBX_NEMBED operation.
6334 * @mbox: pointer to the caller's allocated mailbox structure.
6336 * This function executes the extents allocation request. It also
6337 * takes care of the amount of memory needed to allocate or get the
6338 * allocated extents. It is the caller's responsibility to evaluate
6342 * -Error: Error value describes the condition found.
6346 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
6347 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
6352 uint32_t alloc_len, mbox_tmo;
6354 /* Calculate the total requested length of the dma memory */
6355 req_len = extnt_cnt * sizeof(uint16_t);
6358 * Calculate the size of an embedded mailbox. The uint32_t
6359 * accounts for extents-specific word.
6361 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6365 * Presume the allocation and response will fit into an embedded
6366 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6368 *emb = LPFC_SLI4_MBX_EMBED;
6369 if (req_len > emb_len) {
6370 req_len = extnt_cnt * sizeof(uint16_t) +
6371 sizeof(union lpfc_sli4_cfg_shdr) +
6373 *emb = LPFC_SLI4_MBX_NEMBED;
6376 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6377 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
6379 if (alloc_len < req_len) {
6380 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6381 "2982 Allocated DMA memory size (x%x) is "
6382 "less than the requested DMA memory "
6383 "size (x%x)\n", alloc_len, req_len);
6386 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
6390 if (!phba->sli4_hba.intr_enable)
6391 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6393 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6394 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6403 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
6404 * @phba: Pointer to HBA context object.
6405 * @type: The resource extent type to allocate.
6407 * This function allocates the number of elements for the specified
6411 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
6414 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
6415 uint16_t rsrc_id, rsrc_start, j, k;
6418 unsigned long longs;
6419 unsigned long *bmask;
6420 struct lpfc_rsrc_blks *rsrc_blks;
6423 struct lpfc_id_range *id_array = NULL;
6424 void *virtaddr = NULL;
6425 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6426 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6427 struct list_head *ext_blk_list;
6429 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
6435 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
6436 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6437 "3009 No available Resource Extents "
6438 "for resource type 0x%x: Count: 0x%x, "
6439 "Size 0x%x\n", type, rsrc_cnt,
6444 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
6445 "2903 Post resource extents type-0x%x: "
6446 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
6448 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6452 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
6459 * Figure out where the response is located. Then get local pointers
6460 * to the response data. The port does not guarantee to respond to
6461 * all extents counts request so update the local variable with the
6462 * allocated count from the port.
6464 if (emb == LPFC_SLI4_MBX_EMBED) {
6465 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6466 id_array = &rsrc_ext->u.rsp.id[0];
6467 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6469 virtaddr = mbox->sge_array->addr[0];
6470 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6471 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6472 id_array = &n_rsrc->id;
6475 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
6476 rsrc_id_cnt = rsrc_cnt * rsrc_size;
6479 * Based on the resource size and count, correct the base and max
6482 length = sizeof(struct lpfc_rsrc_blks);
6484 case LPFC_RSC_TYPE_FCOE_RPI:
6485 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6486 sizeof(unsigned long),
6488 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6492 phba->sli4_hba.rpi_ids = kcalloc(rsrc_id_cnt,
6495 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6496 kfree(phba->sli4_hba.rpi_bmask);
6502 * The next_rpi was initialized with the maximum available
6503 * count but the port may allocate a smaller number. Catch
6504 * that case and update the next_rpi.
6506 phba->sli4_hba.next_rpi = rsrc_id_cnt;
6508 /* Initialize local ptrs for common extent processing later. */
6509 bmask = phba->sli4_hba.rpi_bmask;
6510 ids = phba->sli4_hba.rpi_ids;
6511 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
6513 case LPFC_RSC_TYPE_FCOE_VPI:
6514 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6516 if (unlikely(!phba->vpi_bmask)) {
6520 phba->vpi_ids = kcalloc(rsrc_id_cnt, sizeof(uint16_t),
6522 if (unlikely(!phba->vpi_ids)) {
6523 kfree(phba->vpi_bmask);
6528 /* Initialize local ptrs for common extent processing later. */
6529 bmask = phba->vpi_bmask;
6530 ids = phba->vpi_ids;
6531 ext_blk_list = &phba->lpfc_vpi_blk_list;
6533 case LPFC_RSC_TYPE_FCOE_XRI:
6534 phba->sli4_hba.xri_bmask = kcalloc(longs,
6535 sizeof(unsigned long),
6537 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6541 phba->sli4_hba.max_cfg_param.xri_used = 0;
6542 phba->sli4_hba.xri_ids = kcalloc(rsrc_id_cnt,
6545 if (unlikely(!phba->sli4_hba.xri_ids)) {
6546 kfree(phba->sli4_hba.xri_bmask);
6551 /* Initialize local ptrs for common extent processing later. */
6552 bmask = phba->sli4_hba.xri_bmask;
6553 ids = phba->sli4_hba.xri_ids;
6554 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
6556 case LPFC_RSC_TYPE_FCOE_VFI:
6557 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6558 sizeof(unsigned long),
6560 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6564 phba->sli4_hba.vfi_ids = kcalloc(rsrc_id_cnt,
6567 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6568 kfree(phba->sli4_hba.vfi_bmask);
6573 /* Initialize local ptrs for common extent processing later. */
6574 bmask = phba->sli4_hba.vfi_bmask;
6575 ids = phba->sli4_hba.vfi_ids;
6576 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
6579 /* Unsupported Opcode. Fail call. */
6583 ext_blk_list = NULL;
6588 * Complete initializing the extent configuration with the
6589 * allocated ids assigned to this function. The bitmask serves
6590 * as an index into the array and manages the available ids. The
6591 * array just stores the ids communicated to the port via the wqes.
6593 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
6595 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
6598 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
6601 rsrc_blks = kzalloc(length, GFP_KERNEL);
6602 if (unlikely(!rsrc_blks)) {
6608 rsrc_blks->rsrc_start = rsrc_id;
6609 rsrc_blks->rsrc_size = rsrc_size;
6610 list_add_tail(&rsrc_blks->list, ext_blk_list);
6611 rsrc_start = rsrc_id;
6612 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
6613 phba->sli4_hba.io_xri_start = rsrc_start +
6614 lpfc_sli4_get_iocb_cnt(phba);
6617 while (rsrc_id < (rsrc_start + rsrc_size)) {
6622 /* Entire word processed. Get next word.*/
6627 lpfc_sli4_mbox_cmd_free(phba, mbox);
6634 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
6635 * @phba: Pointer to HBA context object.
6636 * @type: the extent's type.
6638 * This function deallocates all extents of a particular resource type.
6639 * SLI4 does not allow for deallocating a particular extent range. It
6640 * is the caller's responsibility to release all kernel memory resources.
6643 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
6646 uint32_t length, mbox_tmo = 0;
6648 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
6649 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
6651 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6656 * This function sends an embedded mailbox because it only sends the
6657 * the resource type. All extents of this type are released by the
6660 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
6661 sizeof(struct lpfc_sli4_cfg_mhdr));
6662 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6663 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
6664 length, LPFC_SLI4_MBX_EMBED);
6666 /* Send an extents count of 0 - the dealloc doesn't use it. */
6667 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6668 LPFC_SLI4_MBX_EMBED);
6673 if (!phba->sli4_hba.intr_enable)
6674 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6676 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6677 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6684 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
6685 if (bf_get(lpfc_mbox_hdr_status,
6686 &dealloc_rsrc->header.cfg_shdr.response)) {
6687 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6688 "2919 Failed to release resource extents "
6689 "for type %d - Status 0x%x Add'l Status 0x%x. "
6690 "Resource memory not released.\n",
6692 bf_get(lpfc_mbox_hdr_status,
6693 &dealloc_rsrc->header.cfg_shdr.response),
6694 bf_get(lpfc_mbox_hdr_add_status,
6695 &dealloc_rsrc->header.cfg_shdr.response));
6700 /* Release kernel memory resources for the specific type. */
6702 case LPFC_RSC_TYPE_FCOE_VPI:
6703 kfree(phba->vpi_bmask);
6704 kfree(phba->vpi_ids);
6705 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6706 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6707 &phba->lpfc_vpi_blk_list, list) {
6708 list_del_init(&rsrc_blk->list);
6711 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6713 case LPFC_RSC_TYPE_FCOE_XRI:
6714 kfree(phba->sli4_hba.xri_bmask);
6715 kfree(phba->sli4_hba.xri_ids);
6716 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6717 &phba->sli4_hba.lpfc_xri_blk_list, list) {
6718 list_del_init(&rsrc_blk->list);
6722 case LPFC_RSC_TYPE_FCOE_VFI:
6723 kfree(phba->sli4_hba.vfi_bmask);
6724 kfree(phba->sli4_hba.vfi_ids);
6725 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6726 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6727 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
6728 list_del_init(&rsrc_blk->list);
6732 case LPFC_RSC_TYPE_FCOE_RPI:
6733 /* RPI bitmask and physical id array are cleaned up earlier. */
6734 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6735 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
6736 list_del_init(&rsrc_blk->list);
6744 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6747 mempool_free(mbox, phba->mbox_mem_pool);
6752 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
6758 len = sizeof(struct lpfc_mbx_set_feature) -
6759 sizeof(struct lpfc_sli4_cfg_mhdr);
6760 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6761 LPFC_MBOX_OPCODE_SET_FEATURES, len,
6762 LPFC_SLI4_MBX_EMBED);
6765 case LPFC_SET_UE_RECOVERY:
6766 bf_set(lpfc_mbx_set_feature_UER,
6767 &mbox->u.mqe.un.set_feature, 1);
6768 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
6769 mbox->u.mqe.un.set_feature.param_len = 8;
6771 case LPFC_SET_MDS_DIAGS:
6772 bf_set(lpfc_mbx_set_feature_mds,
6773 &mbox->u.mqe.un.set_feature, 1);
6774 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
6775 &mbox->u.mqe.un.set_feature, 1);
6776 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
6777 mbox->u.mqe.un.set_feature.param_len = 8;
6779 case LPFC_SET_CGN_SIGNAL:
6780 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6783 sig_freq = phba->cgn_sig_freq;
6785 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6786 bf_set(lpfc_mbx_set_feature_CGN_alarm_freq,
6787 &mbox->u.mqe.un.set_feature, sig_freq);
6788 bf_set(lpfc_mbx_set_feature_CGN_warn_freq,
6789 &mbox->u.mqe.un.set_feature, sig_freq);
6792 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY)
6793 bf_set(lpfc_mbx_set_feature_CGN_warn_freq,
6794 &mbox->u.mqe.un.set_feature, sig_freq);
6796 if (phba->cmf_active_mode == LPFC_CFG_OFF ||
6797 phba->cgn_reg_signal == EDC_CG_SIG_NOTSUPPORTED)
6800 sig_freq = lpfc_acqe_cgn_frequency;
6802 bf_set(lpfc_mbx_set_feature_CGN_acqe_freq,
6803 &mbox->u.mqe.un.set_feature, sig_freq);
6805 mbox->u.mqe.un.set_feature.feature = LPFC_SET_CGN_SIGNAL;
6806 mbox->u.mqe.un.set_feature.param_len = 12;
6808 case LPFC_SET_DUAL_DUMP:
6809 bf_set(lpfc_mbx_set_feature_dd,
6810 &mbox->u.mqe.un.set_feature, LPFC_ENABLE_DUAL_DUMP);
6811 bf_set(lpfc_mbx_set_feature_ddquery,
6812 &mbox->u.mqe.un.set_feature, 0);
6813 mbox->u.mqe.un.set_feature.feature = LPFC_SET_DUAL_DUMP;
6814 mbox->u.mqe.un.set_feature.param_len = 4;
6816 case LPFC_SET_ENABLE_MI:
6817 mbox->u.mqe.un.set_feature.feature = LPFC_SET_ENABLE_MI;
6818 mbox->u.mqe.un.set_feature.param_len = 4;
6819 bf_set(lpfc_mbx_set_feature_milunq, &mbox->u.mqe.un.set_feature,
6820 phba->pport->cfg_lun_queue_depth);
6821 bf_set(lpfc_mbx_set_feature_mi, &mbox->u.mqe.un.set_feature,
6822 phba->sli4_hba.pc_sli4_params.mi_ver);
6824 case LPFC_SET_LD_SIGNAL:
6825 mbox->u.mqe.un.set_feature.feature = LPFC_SET_LD_SIGNAL;
6826 mbox->u.mqe.un.set_feature.param_len = 16;
6827 bf_set(lpfc_mbx_set_feature_lds_qry,
6828 &mbox->u.mqe.un.set_feature, LPFC_QUERY_LDS_OP);
6830 case LPFC_SET_ENABLE_CMF:
6831 mbox->u.mqe.un.set_feature.feature = LPFC_SET_ENABLE_CMF;
6832 mbox->u.mqe.un.set_feature.param_len = 4;
6833 bf_set(lpfc_mbx_set_feature_cmf,
6834 &mbox->u.mqe.un.set_feature, 1);
6841 * lpfc_ras_stop_fwlog: Disable FW logging by the adapter
6842 * @phba: Pointer to HBA context object.
6844 * Disable FW logging into host memory on the adapter. To
6845 * be done before reading logs from the host memory.
6848 lpfc_ras_stop_fwlog(struct lpfc_hba *phba)
6850 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6852 spin_lock_irq(&phba->hbalock);
6853 ras_fwlog->state = INACTIVE;
6854 spin_unlock_irq(&phba->hbalock);
6856 /* Disable FW logging to host memory */
6857 writel(LPFC_CTL_PDEV_CTL_DDL_RAS,
6858 phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
6860 /* Wait 10ms for firmware to stop using DMA buffer */
6861 usleep_range(10 * 1000, 20 * 1000);
6865 * lpfc_sli4_ras_dma_free - Free memory allocated for FW logging.
6866 * @phba: Pointer to HBA context object.
6868 * This function is called to free memory allocated for RAS FW logging
6869 * support in the driver.
6872 lpfc_sli4_ras_dma_free(struct lpfc_hba *phba)
6874 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6875 struct lpfc_dmabuf *dmabuf, *next;
6877 if (!list_empty(&ras_fwlog->fwlog_buff_list)) {
6878 list_for_each_entry_safe(dmabuf, next,
6879 &ras_fwlog->fwlog_buff_list,
6881 list_del(&dmabuf->list);
6882 dma_free_coherent(&phba->pcidev->dev,
6883 LPFC_RAS_MAX_ENTRY_SIZE,
6884 dmabuf->virt, dmabuf->phys);
6889 if (ras_fwlog->lwpd.virt) {
6890 dma_free_coherent(&phba->pcidev->dev,
6891 sizeof(uint32_t) * 2,
6892 ras_fwlog->lwpd.virt,
6893 ras_fwlog->lwpd.phys);
6894 ras_fwlog->lwpd.virt = NULL;
6897 spin_lock_irq(&phba->hbalock);
6898 ras_fwlog->state = INACTIVE;
6899 spin_unlock_irq(&phba->hbalock);
6903 * lpfc_sli4_ras_dma_alloc: Allocate memory for FW support
6904 * @phba: Pointer to HBA context object.
6905 * @fwlog_buff_count: Count of buffers to be created.
6907 * This routine DMA memory for Log Write Position Data[LPWD] and buffer
6908 * to update FW log is posted to the adapter.
6909 * Buffer count is calculated based on module param ras_fwlog_buffsize
6910 * Size of each buffer posted to FW is 64K.
6914 lpfc_sli4_ras_dma_alloc(struct lpfc_hba *phba,
6915 uint32_t fwlog_buff_count)
6917 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6918 struct lpfc_dmabuf *dmabuf;
6921 /* Initialize List */
6922 INIT_LIST_HEAD(&ras_fwlog->fwlog_buff_list);
6924 /* Allocate memory for the LWPD */
6925 ras_fwlog->lwpd.virt = dma_alloc_coherent(&phba->pcidev->dev,
6926 sizeof(uint32_t) * 2,
6927 &ras_fwlog->lwpd.phys,
6929 if (!ras_fwlog->lwpd.virt) {
6930 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6931 "6185 LWPD Memory Alloc Failed\n");
6936 ras_fwlog->fw_buffcount = fwlog_buff_count;
6937 for (i = 0; i < ras_fwlog->fw_buffcount; i++) {
6938 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
6942 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6943 "6186 Memory Alloc failed FW logging");
6947 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6948 LPFC_RAS_MAX_ENTRY_SIZE,
6949 &dmabuf->phys, GFP_KERNEL);
6950 if (!dmabuf->virt) {
6953 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6954 "6187 DMA Alloc Failed FW logging");
6957 dmabuf->buffer_tag = i;
6958 list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
6963 lpfc_sli4_ras_dma_free(phba);
6969 * lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
6970 * @phba: pointer to lpfc hba data structure.
6971 * @pmb: pointer to the driver internal queue element for mailbox command.
6973 * Completion handler for driver's RAS MBX command to the device.
6976 lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6979 union lpfc_sli4_cfg_shdr *shdr;
6980 uint32_t shdr_status, shdr_add_status;
6981 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6985 shdr = (union lpfc_sli4_cfg_shdr *)
6986 &pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
6987 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6988 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6990 if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
6991 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6992 "6188 FW LOG mailbox "
6993 "completed with status x%x add_status x%x,"
6994 " mbx status x%x\n",
6995 shdr_status, shdr_add_status, mb->mbxStatus);
6997 ras_fwlog->ras_hwsupport = false;
7001 spin_lock_irq(&phba->hbalock);
7002 ras_fwlog->state = ACTIVE;
7003 spin_unlock_irq(&phba->hbalock);
7004 mempool_free(pmb, phba->mbox_mem_pool);
7009 /* Free RAS DMA memory */
7010 lpfc_sli4_ras_dma_free(phba);
7011 mempool_free(pmb, phba->mbox_mem_pool);
7015 * lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
7016 * @phba: pointer to lpfc hba data structure.
7017 * @fwlog_level: Logging verbosity level.
7018 * @fwlog_enable: Enable/Disable logging.
7020 * Initialize memory and post mailbox command to enable FW logging in host
7024 lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
7025 uint32_t fwlog_level,
7026 uint32_t fwlog_enable)
7028 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
7029 struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
7030 struct lpfc_dmabuf *dmabuf;
7032 uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
7035 spin_lock_irq(&phba->hbalock);
7036 ras_fwlog->state = INACTIVE;
7037 spin_unlock_irq(&phba->hbalock);
7039 fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
7040 phba->cfg_ras_fwlog_buffsize);
7041 fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
7044 * If re-enabling FW logging support use earlier allocated
7045 * DMA buffers while posting MBX command.
7047 if (!ras_fwlog->lwpd.virt) {
7048 rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
7050 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7051 "6189 FW Log Memory Allocation Failed");
7056 /* Setup Mailbox command */
7057 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7059 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7060 "6190 RAS MBX Alloc Failed");
7065 ras_fwlog->fw_loglevel = fwlog_level;
7066 len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
7067 sizeof(struct lpfc_sli4_cfg_mhdr));
7069 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
7070 LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
7071 len, LPFC_SLI4_MBX_EMBED);
7073 mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
7074 bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
7076 bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
7077 ras_fwlog->fw_loglevel);
7078 bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
7079 ras_fwlog->fw_buffcount);
7080 bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
7081 LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
7083 /* Update DMA buffer address */
7084 list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
7085 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
7087 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
7088 putPaddrLow(dmabuf->phys);
7090 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
7091 putPaddrHigh(dmabuf->phys);
7094 /* Update LPWD address */
7095 mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
7096 mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
7098 spin_lock_irq(&phba->hbalock);
7099 ras_fwlog->state = REG_INPROGRESS;
7100 spin_unlock_irq(&phba->hbalock);
7101 mbox->vport = phba->pport;
7102 mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
7104 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
7106 if (rc == MBX_NOT_FINISHED) {
7107 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7108 "6191 FW-Log Mailbox failed. "
7109 "status %d mbxStatus : x%x", rc,
7110 bf_get(lpfc_mqe_status, &mbox->u.mqe));
7111 mempool_free(mbox, phba->mbox_mem_pool);
7118 lpfc_sli4_ras_dma_free(phba);
7124 * lpfc_sli4_ras_setup - Check if RAS supported on the adapter
7125 * @phba: Pointer to HBA context object.
7127 * Check if RAS is supported on the adapter and initialize it.
7130 lpfc_sli4_ras_setup(struct lpfc_hba *phba)
7132 /* Check RAS FW Log needs to be enabled or not */
7133 if (lpfc_check_fwlog_support(phba))
7136 lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
7137 LPFC_RAS_ENABLE_LOGGING);
7141 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
7142 * @phba: Pointer to HBA context object.
7144 * This function allocates all SLI4 resource identifiers.
7147 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
7149 int i, rc, error = 0;
7150 uint16_t count, base;
7151 unsigned long longs;
7153 if (!phba->sli4_hba.rpi_hdrs_in_use)
7154 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
7155 if (phba->sli4_hba.extents_in_use) {
7157 * The port supports resource extents. The XRI, VPI, VFI, RPI
7158 * resource extent count must be read and allocated before
7159 * provisioning the resource id arrays.
7161 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
7162 LPFC_IDX_RSRC_RDY) {
7164 * Extent-based resources are set - the driver could
7165 * be in a port reset. Figure out if any corrective
7166 * actions need to be taken.
7168 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
7169 LPFC_RSC_TYPE_FCOE_VFI);
7172 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
7173 LPFC_RSC_TYPE_FCOE_VPI);
7176 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
7177 LPFC_RSC_TYPE_FCOE_XRI);
7180 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
7181 LPFC_RSC_TYPE_FCOE_RPI);
7186 * It's possible that the number of resources
7187 * provided to this port instance changed between
7188 * resets. Detect this condition and reallocate
7189 * resources. Otherwise, there is no action.
7192 lpfc_printf_log(phba, KERN_INFO,
7193 LOG_MBOX | LOG_INIT,
7194 "2931 Detected extent resource "
7195 "change. Reallocating all "
7197 rc = lpfc_sli4_dealloc_extent(phba,
7198 LPFC_RSC_TYPE_FCOE_VFI);
7199 rc = lpfc_sli4_dealloc_extent(phba,
7200 LPFC_RSC_TYPE_FCOE_VPI);
7201 rc = lpfc_sli4_dealloc_extent(phba,
7202 LPFC_RSC_TYPE_FCOE_XRI);
7203 rc = lpfc_sli4_dealloc_extent(phba,
7204 LPFC_RSC_TYPE_FCOE_RPI);
7209 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
7213 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
7217 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
7221 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
7224 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
7229 * The port does not support resource extents. The XRI, VPI,
7230 * VFI, RPI resource ids were determined from READ_CONFIG.
7231 * Just allocate the bitmasks and provision the resource id
7232 * arrays. If a port reset is active, the resources don't
7233 * need any action - just exit.
7235 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
7236 LPFC_IDX_RSRC_RDY) {
7237 lpfc_sli4_dealloc_resource_identifiers(phba);
7238 lpfc_sli4_remove_rpis(phba);
7241 count = phba->sli4_hba.max_cfg_param.max_rpi;
7243 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7244 "3279 Invalid provisioning of "
7249 base = phba->sli4_hba.max_cfg_param.rpi_base;
7250 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
7251 phba->sli4_hba.rpi_bmask = kcalloc(longs,
7252 sizeof(unsigned long),
7254 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
7258 phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
7260 if (unlikely(!phba->sli4_hba.rpi_ids)) {
7262 goto free_rpi_bmask;
7265 for (i = 0; i < count; i++)
7266 phba->sli4_hba.rpi_ids[i] = base + i;
7269 count = phba->sli4_hba.max_cfg_param.max_vpi;
7271 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7272 "3280 Invalid provisioning of "
7277 base = phba->sli4_hba.max_cfg_param.vpi_base;
7278 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
7279 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
7281 if (unlikely(!phba->vpi_bmask)) {
7285 phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
7287 if (unlikely(!phba->vpi_ids)) {
7289 goto free_vpi_bmask;
7292 for (i = 0; i < count; i++)
7293 phba->vpi_ids[i] = base + i;
7296 count = phba->sli4_hba.max_cfg_param.max_xri;
7298 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7299 "3281 Invalid provisioning of "
7304 base = phba->sli4_hba.max_cfg_param.xri_base;
7305 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
7306 phba->sli4_hba.xri_bmask = kcalloc(longs,
7307 sizeof(unsigned long),
7309 if (unlikely(!phba->sli4_hba.xri_bmask)) {
7313 phba->sli4_hba.max_cfg_param.xri_used = 0;
7314 phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
7316 if (unlikely(!phba->sli4_hba.xri_ids)) {
7318 goto free_xri_bmask;
7321 for (i = 0; i < count; i++)
7322 phba->sli4_hba.xri_ids[i] = base + i;
7325 count = phba->sli4_hba.max_cfg_param.max_vfi;
7327 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7328 "3282 Invalid provisioning of "
7333 base = phba->sli4_hba.max_cfg_param.vfi_base;
7334 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
7335 phba->sli4_hba.vfi_bmask = kcalloc(longs,
7336 sizeof(unsigned long),
7338 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
7342 phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
7344 if (unlikely(!phba->sli4_hba.vfi_ids)) {
7346 goto free_vfi_bmask;
7349 for (i = 0; i < count; i++)
7350 phba->sli4_hba.vfi_ids[i] = base + i;
7353 * Mark all resources ready. An HBA reset doesn't need
7354 * to reset the initialization.
7356 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
7362 kfree(phba->sli4_hba.vfi_bmask);
7363 phba->sli4_hba.vfi_bmask = NULL;
7365 kfree(phba->sli4_hba.xri_ids);
7366 phba->sli4_hba.xri_ids = NULL;
7368 kfree(phba->sli4_hba.xri_bmask);
7369 phba->sli4_hba.xri_bmask = NULL;
7371 kfree(phba->vpi_ids);
7372 phba->vpi_ids = NULL;
7374 kfree(phba->vpi_bmask);
7375 phba->vpi_bmask = NULL;
7377 kfree(phba->sli4_hba.rpi_ids);
7378 phba->sli4_hba.rpi_ids = NULL;
7380 kfree(phba->sli4_hba.rpi_bmask);
7381 phba->sli4_hba.rpi_bmask = NULL;
7387 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
7388 * @phba: Pointer to HBA context object.
7390 * This function allocates the number of elements for the specified
7394 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
7396 if (phba->sli4_hba.extents_in_use) {
7397 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
7398 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
7399 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
7400 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
7402 kfree(phba->vpi_bmask);
7403 phba->sli4_hba.max_cfg_param.vpi_used = 0;
7404 kfree(phba->vpi_ids);
7405 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
7406 kfree(phba->sli4_hba.xri_bmask);
7407 kfree(phba->sli4_hba.xri_ids);
7408 kfree(phba->sli4_hba.vfi_bmask);
7409 kfree(phba->sli4_hba.vfi_ids);
7410 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
7411 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
7418 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
7419 * @phba: Pointer to HBA context object.
7420 * @type: The resource extent type.
7421 * @extnt_cnt: buffer to hold port extent count response
7422 * @extnt_size: buffer to hold port extent size response.
7424 * This function calls the port to read the host allocated extents
7425 * for a particular type.
7428 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
7429 uint16_t *extnt_cnt, uint16_t *extnt_size)
7433 uint16_t curr_blks = 0;
7434 uint32_t req_len, emb_len;
7435 uint32_t alloc_len, mbox_tmo;
7436 struct list_head *blk_list_head;
7437 struct lpfc_rsrc_blks *rsrc_blk;
7439 void *virtaddr = NULL;
7440 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
7441 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
7442 union lpfc_sli4_cfg_shdr *shdr;
7445 case LPFC_RSC_TYPE_FCOE_VPI:
7446 blk_list_head = &phba->lpfc_vpi_blk_list;
7448 case LPFC_RSC_TYPE_FCOE_XRI:
7449 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
7451 case LPFC_RSC_TYPE_FCOE_VFI:
7452 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
7454 case LPFC_RSC_TYPE_FCOE_RPI:
7455 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
7461 /* Count the number of extents currently allocatd for this type. */
7462 list_for_each_entry(rsrc_blk, blk_list_head, list) {
7463 if (curr_blks == 0) {
7465 * The GET_ALLOCATED mailbox does not return the size,
7466 * just the count. The size should be just the size
7467 * stored in the current allocated block and all sizes
7468 * for an extent type are the same so set the return
7471 *extnt_size = rsrc_blk->rsrc_size;
7477 * Calculate the size of an embedded mailbox. The uint32_t
7478 * accounts for extents-specific word.
7480 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
7484 * Presume the allocation and response will fit into an embedded
7485 * mailbox. If not true, reconfigure to a non-embedded mailbox.
7487 emb = LPFC_SLI4_MBX_EMBED;
7489 if (req_len > emb_len) {
7490 req_len = curr_blks * sizeof(uint16_t) +
7491 sizeof(union lpfc_sli4_cfg_shdr) +
7493 emb = LPFC_SLI4_MBX_NEMBED;
7496 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7499 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
7501 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7502 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
7504 if (alloc_len < req_len) {
7505 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7506 "2983 Allocated DMA memory size (x%x) is "
7507 "less than the requested DMA memory "
7508 "size (x%x)\n", alloc_len, req_len);
7512 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
7518 if (!phba->sli4_hba.intr_enable)
7519 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
7521 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
7522 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
7531 * Figure out where the response is located. Then get local pointers
7532 * to the response data. The port does not guarantee to respond to
7533 * all extents counts request so update the local variable with the
7534 * allocated count from the port.
7536 if (emb == LPFC_SLI4_MBX_EMBED) {
7537 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
7538 shdr = &rsrc_ext->header.cfg_shdr;
7539 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
7541 virtaddr = mbox->sge_array->addr[0];
7542 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
7543 shdr = &n_rsrc->cfg_shdr;
7544 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
7547 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
7548 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7549 "2984 Failed to read allocated resources "
7550 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
7552 bf_get(lpfc_mbox_hdr_status, &shdr->response),
7553 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
7558 lpfc_sli4_mbox_cmd_free(phba, mbox);
7563 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
7564 * @phba: pointer to lpfc hba data structure.
7565 * @sgl_list: linked link of sgl buffers to post
7566 * @cnt: number of linked list buffers
7568 * This routine walks the list of buffers that have been allocated and
7569 * repost them to the port by using SGL block post. This is needed after a
7570 * pci_function_reset/warm_start or start. It attempts to construct blocks
7571 * of buffer sgls which contains contiguous xris and uses the non-embedded
7572 * SGL block post mailbox commands to post them to the port. For single
7573 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
7574 * mailbox command for posting.
7576 * Returns: 0 = success, non-zero failure.
7579 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
7580 struct list_head *sgl_list, int cnt)
7582 struct lpfc_sglq *sglq_entry = NULL;
7583 struct lpfc_sglq *sglq_entry_next = NULL;
7584 struct lpfc_sglq *sglq_entry_first = NULL;
7585 int status, total_cnt;
7586 int post_cnt = 0, num_posted = 0, block_cnt = 0;
7587 int last_xritag = NO_XRI;
7588 LIST_HEAD(prep_sgl_list);
7589 LIST_HEAD(blck_sgl_list);
7590 LIST_HEAD(allc_sgl_list);
7591 LIST_HEAD(post_sgl_list);
7592 LIST_HEAD(free_sgl_list);
7594 spin_lock_irq(&phba->hbalock);
7595 spin_lock(&phba->sli4_hba.sgl_list_lock);
7596 list_splice_init(sgl_list, &allc_sgl_list);
7597 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7598 spin_unlock_irq(&phba->hbalock);
7601 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
7602 &allc_sgl_list, list) {
7603 list_del_init(&sglq_entry->list);
7605 if ((last_xritag != NO_XRI) &&
7606 (sglq_entry->sli4_xritag != last_xritag + 1)) {
7607 /* a hole in xri block, form a sgl posting block */
7608 list_splice_init(&prep_sgl_list, &blck_sgl_list);
7609 post_cnt = block_cnt - 1;
7610 /* prepare list for next posting block */
7611 list_add_tail(&sglq_entry->list, &prep_sgl_list);
7614 /* prepare list for next posting block */
7615 list_add_tail(&sglq_entry->list, &prep_sgl_list);
7616 /* enough sgls for non-embed sgl mbox command */
7617 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
7618 list_splice_init(&prep_sgl_list,
7620 post_cnt = block_cnt;
7626 /* keep track of last sgl's xritag */
7627 last_xritag = sglq_entry->sli4_xritag;
7629 /* end of repost sgl list condition for buffers */
7630 if (num_posted == total_cnt) {
7631 if (post_cnt == 0) {
7632 list_splice_init(&prep_sgl_list,
7634 post_cnt = block_cnt;
7635 } else if (block_cnt == 1) {
7636 status = lpfc_sli4_post_sgl(phba,
7637 sglq_entry->phys, 0,
7638 sglq_entry->sli4_xritag);
7640 /* successful, put sgl to posted list */
7641 list_add_tail(&sglq_entry->list,
7644 /* Failure, put sgl to free list */
7645 lpfc_printf_log(phba, KERN_WARNING,
7647 "3159 Failed to post "
7648 "sgl, xritag:x%x\n",
7649 sglq_entry->sli4_xritag);
7650 list_add_tail(&sglq_entry->list,
7657 /* continue until a nembed page worth of sgls */
7661 /* post the buffer list sgls as a block */
7662 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
7666 /* success, put sgl list to posted sgl list */
7667 list_splice_init(&blck_sgl_list, &post_sgl_list);
7669 /* Failure, put sgl list to free sgl list */
7670 sglq_entry_first = list_first_entry(&blck_sgl_list,
7673 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7674 "3160 Failed to post sgl-list, "
7676 sglq_entry_first->sli4_xritag,
7677 (sglq_entry_first->sli4_xritag +
7679 list_splice_init(&blck_sgl_list, &free_sgl_list);
7680 total_cnt -= post_cnt;
7683 /* don't reset xirtag due to hole in xri block */
7685 last_xritag = NO_XRI;
7687 /* reset sgl post count for next round of posting */
7691 /* free the sgls failed to post */
7692 lpfc_free_sgl_list(phba, &free_sgl_list);
7694 /* push sgls posted to the available list */
7695 if (!list_empty(&post_sgl_list)) {
7696 spin_lock_irq(&phba->hbalock);
7697 spin_lock(&phba->sli4_hba.sgl_list_lock);
7698 list_splice_init(&post_sgl_list, sgl_list);
7699 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7700 spin_unlock_irq(&phba->hbalock);
7702 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7703 "3161 Failure to post sgl to port,status %x "
7704 "blkcnt %d totalcnt %d postcnt %d\n",
7705 status, block_cnt, total_cnt, post_cnt);
7709 /* return the number of XRIs actually posted */
7714 * lpfc_sli4_repost_io_sgl_list - Repost all the allocated nvme buffer sgls
7715 * @phba: pointer to lpfc hba data structure.
7717 * This routine walks the list of nvme buffers that have been allocated and
7718 * repost them to the port by using SGL block post. This is needed after a
7719 * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine
7720 * is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list
7721 * to the lpfc_io_buf_list. If the repost fails, reject all nvme buffers.
7723 * Returns: 0 = success, non-zero failure.
7726 lpfc_sli4_repost_io_sgl_list(struct lpfc_hba *phba)
7728 LIST_HEAD(post_nblist);
7729 int num_posted, rc = 0;
7731 /* get all NVME buffers need to repost to a local list */
7732 lpfc_io_buf_flush(phba, &post_nblist);
7734 /* post the list of nvme buffer sgls to port if available */
7735 if (!list_empty(&post_nblist)) {
7736 num_posted = lpfc_sli4_post_io_sgl_list(
7737 phba, &post_nblist, phba->sli4_hba.io_xri_cnt);
7738 /* failed to post any nvme buffer, return error */
7739 if (num_posted == 0)
7746 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
7750 len = sizeof(struct lpfc_mbx_set_host_data) -
7751 sizeof(struct lpfc_sli4_cfg_mhdr);
7752 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7753 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
7754 LPFC_SLI4_MBX_EMBED);
7756 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
7757 mbox->u.mqe.un.set_host_data.param_len =
7758 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
7759 snprintf(mbox->u.mqe.un.set_host_data.un.data,
7760 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
7761 "Linux %s v"LPFC_DRIVER_VERSION,
7762 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
7766 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
7767 struct lpfc_queue *drq, int count, int idx)
7770 struct lpfc_rqe hrqe;
7771 struct lpfc_rqe drqe;
7772 struct lpfc_rqb *rqbp;
7773 unsigned long flags;
7774 struct rqb_dmabuf *rqb_buffer;
7775 LIST_HEAD(rqb_buf_list);
7778 for (i = 0; i < count; i++) {
7779 spin_lock_irqsave(&phba->hbalock, flags);
7780 /* IF RQ is already full, don't bother */
7781 if (rqbp->buffer_count + i >= rqbp->entry_count - 1) {
7782 spin_unlock_irqrestore(&phba->hbalock, flags);
7785 spin_unlock_irqrestore(&phba->hbalock, flags);
7787 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
7790 rqb_buffer->hrq = hrq;
7791 rqb_buffer->drq = drq;
7792 rqb_buffer->idx = idx;
7793 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
7796 spin_lock_irqsave(&phba->hbalock, flags);
7797 while (!list_empty(&rqb_buf_list)) {
7798 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
7801 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
7802 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
7803 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
7804 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
7805 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
7807 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7808 "6421 Cannot post to HRQ %d: %x %x %x "
7816 rqbp->rqb_free_buffer(phba, rqb_buffer);
7818 list_add_tail(&rqb_buffer->hbuf.list,
7819 &rqbp->rqb_buffer_list);
7820 rqbp->buffer_count++;
7823 spin_unlock_irqrestore(&phba->hbalock, flags);
7828 lpfc_mbx_cmpl_read_lds_params(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7830 union lpfc_sli4_cfg_shdr *shdr;
7831 u32 shdr_status, shdr_add_status;
7833 shdr = (union lpfc_sli4_cfg_shdr *)
7834 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7835 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7836 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7837 if (shdr_status || shdr_add_status || pmb->u.mb.mbxStatus) {
7838 lpfc_printf_log(phba, KERN_INFO, LOG_LDS_EVENT | LOG_MBOX,
7839 "4622 SET_FEATURE (x%x) mbox failed, "
7840 "status x%x add_status x%x, mbx status x%x\n",
7841 LPFC_SET_LD_SIGNAL, shdr_status,
7842 shdr_add_status, pmb->u.mb.mbxStatus);
7843 phba->degrade_activate_threshold = 0;
7844 phba->degrade_deactivate_threshold = 0;
7845 phba->fec_degrade_interval = 0;
7849 phba->degrade_activate_threshold = pmb->u.mqe.un.set_feature.word7;
7850 phba->degrade_deactivate_threshold = pmb->u.mqe.un.set_feature.word8;
7851 phba->fec_degrade_interval = pmb->u.mqe.un.set_feature.word10;
7853 lpfc_printf_log(phba, KERN_INFO, LOG_LDS_EVENT,
7854 "4624 Success: da x%x dd x%x interval x%x\n",
7855 phba->degrade_activate_threshold,
7856 phba->degrade_deactivate_threshold,
7857 phba->fec_degrade_interval);
7859 mempool_free(pmb, phba->mbox_mem_pool);
7863 lpfc_read_lds_params(struct lpfc_hba *phba)
7865 LPFC_MBOXQ_t *mboxq;
7868 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7872 lpfc_set_features(phba, mboxq, LPFC_SET_LD_SIGNAL);
7873 mboxq->vport = phba->pport;
7874 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_lds_params;
7875 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
7876 if (rc == MBX_NOT_FINISHED) {
7877 mempool_free(mboxq, phba->mbox_mem_pool);
7884 lpfc_mbx_cmpl_cgn_set_ftrs(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7886 struct lpfc_vport *vport = pmb->vport;
7887 union lpfc_sli4_cfg_shdr *shdr;
7888 u32 shdr_status, shdr_add_status;
7891 /* Two outcomes. (1) Set featurs was successul and EDC negotiation
7892 * is done. (2) Mailbox failed and send FPIN support only.
7894 shdr = (union lpfc_sli4_cfg_shdr *)
7895 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7896 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7897 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7898 if (shdr_status || shdr_add_status || pmb->u.mb.mbxStatus) {
7899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_CGN_MGMT,
7900 "2516 CGN SET_FEATURE mbox failed with "
7901 "status x%x add_status x%x, mbx status x%x "
7902 "Reset Congestion to FPINs only\n",
7903 shdr_status, shdr_add_status,
7904 pmb->u.mb.mbxStatus);
7905 /* If there is a mbox error, move on to RDF */
7906 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
7907 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
7911 /* Zero out Congestion Signal ACQE counter */
7912 phba->cgn_acqe_cnt = 0;
7914 acqe = bf_get(lpfc_mbx_set_feature_CGN_acqe_freq,
7915 &pmb->u.mqe.un.set_feature);
7916 sig = bf_get(lpfc_mbx_set_feature_CGN_warn_freq,
7917 &pmb->u.mqe.un.set_feature);
7918 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7919 "4620 SET_FEATURES Success: Freq: %ds %dms "
7920 " Reg: x%x x%x\n", acqe, sig,
7921 phba->cgn_reg_signal, phba->cgn_reg_fpin);
7923 mempool_free(pmb, phba->mbox_mem_pool);
7925 /* Register for FPIN events from the fabric now that the
7926 * EDC common_set_features has completed.
7928 lpfc_issue_els_rdf(vport, 0);
7932 lpfc_config_cgn_signal(struct lpfc_hba *phba)
7934 LPFC_MBOXQ_t *mboxq;
7937 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7941 lpfc_set_features(phba, mboxq, LPFC_SET_CGN_SIGNAL);
7942 mboxq->vport = phba->pport;
7943 mboxq->mbox_cmpl = lpfc_mbx_cmpl_cgn_set_ftrs;
7945 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7946 "4621 SET_FEATURES: FREQ sig x%x acqe x%x: "
7948 phba->cgn_sig_freq, lpfc_acqe_cgn_frequency,
7949 phba->cgn_reg_signal, phba->cgn_reg_fpin);
7951 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
7952 if (rc == MBX_NOT_FINISHED)
7957 mempool_free(mboxq, phba->mbox_mem_pool);
7959 /* If there is a mbox error, move on to RDF */
7960 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
7961 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
7962 lpfc_issue_els_rdf(phba->pport, 0);
7967 * lpfc_init_idle_stat_hb - Initialize idle_stat tracking
7968 * @phba: pointer to lpfc hba data structure.
7970 * This routine initializes the per-eq idle_stat to dynamically dictate
7971 * polling decisions.
7976 static void lpfc_init_idle_stat_hb(struct lpfc_hba *phba)
7979 struct lpfc_sli4_hdw_queue *hdwq;
7980 struct lpfc_queue *eq;
7981 struct lpfc_idle_stat *idle_stat;
7984 for_each_present_cpu(i) {
7985 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
7988 /* Skip if we've already handled this eq's primary CPU */
7992 idle_stat = &phba->sli4_hba.idle_stat[i];
7994 idle_stat->prev_idle = get_cpu_idle_time(i, &wall, 1);
7995 idle_stat->prev_wall = wall;
7997 if (phba->nvmet_support ||
7998 phba->cmf_active_mode != LPFC_CFG_OFF ||
7999 phba->intr_type != MSIX)
8000 eq->poll_mode = LPFC_QUEUE_WORK;
8002 eq->poll_mode = LPFC_THREADED_IRQ;
8005 if (!phba->nvmet_support && phba->intr_type == MSIX)
8006 schedule_delayed_work(&phba->idle_stat_delay_work,
8007 msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
8010 static void lpfc_sli4_dip(struct lpfc_hba *phba)
8014 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8015 if (if_type == LPFC_SLI_INTF_IF_TYPE_2 ||
8016 if_type == LPFC_SLI_INTF_IF_TYPE_6) {
8017 struct lpfc_register reg_data;
8019 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
8023 if (bf_get(lpfc_sliport_status_dip, ®_data))
8024 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8025 "2904 Firmware Dump Image Present"
8031 * lpfc_rx_monitor_create_ring - Initialize ring buffer for rx_monitor
8032 * @rx_monitor: Pointer to lpfc_rx_info_monitor object
8033 * @entries: Number of rx_info_entry objects to allocate in ring
8037 * ENOMEM - Failure to kmalloc
8039 int lpfc_rx_monitor_create_ring(struct lpfc_rx_info_monitor *rx_monitor,
8042 rx_monitor->ring = kmalloc_array(entries, sizeof(struct rx_info_entry),
8044 if (!rx_monitor->ring)
8047 rx_monitor->head_idx = 0;
8048 rx_monitor->tail_idx = 0;
8049 spin_lock_init(&rx_monitor->lock);
8050 rx_monitor->entries = entries;
8056 * lpfc_rx_monitor_destroy_ring - Free ring buffer for rx_monitor
8057 * @rx_monitor: Pointer to lpfc_rx_info_monitor object
8059 * Called after cancellation of cmf_timer.
8061 void lpfc_rx_monitor_destroy_ring(struct lpfc_rx_info_monitor *rx_monitor)
8063 kfree(rx_monitor->ring);
8064 rx_monitor->ring = NULL;
8065 rx_monitor->entries = 0;
8066 rx_monitor->head_idx = 0;
8067 rx_monitor->tail_idx = 0;
8071 * lpfc_rx_monitor_record - Insert an entry into rx_monitor's ring
8072 * @rx_monitor: Pointer to lpfc_rx_info_monitor object
8073 * @entry: Pointer to rx_info_entry
8075 * Used to insert an rx_info_entry into rx_monitor's ring. Note that this is a
8076 * deep copy of rx_info_entry not a shallow copy of the rx_info_entry ptr.
8078 * This is called from lpfc_cmf_timer, which is in timer/softirq context.
8080 * In cases of old data overflow, we do a best effort of FIFO order.
8082 void lpfc_rx_monitor_record(struct lpfc_rx_info_monitor *rx_monitor,
8083 struct rx_info_entry *entry)
8085 struct rx_info_entry *ring = rx_monitor->ring;
8086 u32 *head_idx = &rx_monitor->head_idx;
8087 u32 *tail_idx = &rx_monitor->tail_idx;
8088 spinlock_t *ring_lock = &rx_monitor->lock;
8089 u32 ring_size = rx_monitor->entries;
8091 spin_lock(ring_lock);
8092 memcpy(&ring[*tail_idx], entry, sizeof(*entry));
8093 *tail_idx = (*tail_idx + 1) % ring_size;
8095 /* Best effort of FIFO saved data */
8096 if (*tail_idx == *head_idx)
8097 *head_idx = (*head_idx + 1) % ring_size;
8099 spin_unlock(ring_lock);
8103 * lpfc_rx_monitor_report - Read out rx_monitor's ring
8104 * @phba: Pointer to lpfc_hba object
8105 * @rx_monitor: Pointer to lpfc_rx_info_monitor object
8106 * @buf: Pointer to char buffer that will contain rx monitor info data
8107 * @buf_len: Length buf including null char
8108 * @max_read_entries: Maximum number of entries to read out of ring
8110 * Used to dump/read what's in rx_monitor's ring buffer.
8112 * If buf is NULL || buf_len == 0, then it is implied that we want to log the
8113 * information to kmsg instead of filling out buf.
8116 * Number of entries read out of the ring
8118 u32 lpfc_rx_monitor_report(struct lpfc_hba *phba,
8119 struct lpfc_rx_info_monitor *rx_monitor, char *buf,
8120 u32 buf_len, u32 max_read_entries)
8122 struct rx_info_entry *ring = rx_monitor->ring;
8123 struct rx_info_entry *entry;
8124 u32 *head_idx = &rx_monitor->head_idx;
8125 u32 *tail_idx = &rx_monitor->tail_idx;
8126 spinlock_t *ring_lock = &rx_monitor->lock;
8127 u32 ring_size = rx_monitor->entries;
8129 char tmp[DBG_LOG_STR_SZ] = {0};
8130 bool log_to_kmsg = (!buf || !buf_len) ? true : false;
8133 /* clear the buffer to be sure */
8134 memset(buf, 0, buf_len);
8136 scnprintf(buf, buf_len, "\t%-16s%-16s%-16s%-16s%-8s%-8s%-8s"
8137 "%-8s%-8s%-8s%-16s\n",
8138 "MaxBPI", "Tot_Data_CMF",
8139 "Tot_Data_Cmd", "Tot_Data_Cmpl",
8140 "Lat(us)", "Avg_IO", "Max_IO", "Bsy",
8141 "IO_cnt", "Info", "BWutil(ms)");
8144 /* Needs to be _irq because record is called from timer interrupt
8147 spin_lock_irq(ring_lock);
8148 while (*head_idx != *tail_idx) {
8149 entry = &ring[*head_idx];
8151 /* Read out this entry's data. */
8153 /* If !log_to_kmsg, then store to buf. */
8154 scnprintf(tmp, sizeof(tmp),
8155 "%03d:\t%-16llu%-16llu%-16llu%-16llu%-8llu"
8156 "%-8llu%-8llu%-8u%-8u%-8u%u(%u)\n",
8157 *head_idx, entry->max_bytes_per_interval,
8158 entry->cmf_bytes, entry->total_bytes,
8159 entry->rcv_bytes, entry->avg_io_latency,
8160 entry->avg_io_size, entry->max_read_cnt,
8161 entry->cmf_busy, entry->io_cnt,
8162 entry->cmf_info, entry->timer_utilization,
8163 entry->timer_interval);
8165 /* Check for buffer overflow */
8166 if ((strlen(buf) + strlen(tmp)) >= buf_len)
8169 /* Append entry's data to buffer */
8170 strlcat(buf, tmp, buf_len);
8172 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
8173 "4410 %02u: MBPI %llu Xmit %llu "
8174 "Cmpl %llu Lat %llu ASz %llu Info %02u "
8175 "BWUtil %u Int %u slot %u\n",
8176 cnt, entry->max_bytes_per_interval,
8177 entry->total_bytes, entry->rcv_bytes,
8178 entry->avg_io_latency,
8179 entry->avg_io_size, entry->cmf_info,
8180 entry->timer_utilization,
8181 entry->timer_interval, *head_idx);
8184 *head_idx = (*head_idx + 1) % ring_size;
8186 /* Don't feed more than max_read_entries */
8188 if (cnt >= max_read_entries)
8191 spin_unlock_irq(ring_lock);
8197 * lpfc_cmf_setup - Initialize idle_stat tracking
8198 * @phba: Pointer to HBA context object.
8200 * This is called from HBA setup during driver load or when the HBA
8201 * comes online. this does all the initialization to support CMF and MI.
8204 lpfc_cmf_setup(struct lpfc_hba *phba)
8206 LPFC_MBOXQ_t *mboxq;
8207 struct lpfc_dmabuf *mp;
8208 struct lpfc_pc_sli4_params *sli4_params;
8209 int rc, cmf, mi_ver;
8211 rc = lpfc_sli4_refresh_params(phba);
8215 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8219 sli4_params = &phba->sli4_hba.pc_sli4_params;
8221 /* Always try to enable MI feature if we can */
8222 if (sli4_params->mi_ver) {
8223 lpfc_set_features(phba, mboxq, LPFC_SET_ENABLE_MI);
8224 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8225 mi_ver = bf_get(lpfc_mbx_set_feature_mi,
8226 &mboxq->u.mqe.un.set_feature);
8228 if (rc == MBX_SUCCESS) {
8230 lpfc_printf_log(phba,
8231 KERN_WARNING, LOG_CGN_MGMT,
8232 "6215 MI is enabled\n");
8233 sli4_params->mi_ver = mi_ver;
8235 lpfc_printf_log(phba,
8236 KERN_WARNING, LOG_CGN_MGMT,
8237 "6338 MI is disabled\n");
8238 sli4_params->mi_ver = 0;
8241 /* mi_ver is already set from GET_SLI4_PARAMETERS */
8242 lpfc_printf_log(phba, KERN_INFO,
8243 LOG_CGN_MGMT | LOG_INIT,
8244 "6245 Enable MI Mailbox x%x (x%x/x%x) "
8245 "failed, rc:x%x mi:x%x\n",
8246 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8247 lpfc_sli_config_mbox_subsys_get
8249 lpfc_sli_config_mbox_opcode_get
8251 rc, sli4_params->mi_ver);
8254 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
8255 "6217 MI is disabled\n");
8258 /* Ensure FDMI is enabled for MI if enable_mi is set */
8259 if (sli4_params->mi_ver)
8260 phba->cfg_fdmi_on = LPFC_FDMI_SUPPORT;
8262 /* Always try to enable CMF feature if we can */
8263 if (sli4_params->cmf) {
8264 lpfc_set_features(phba, mboxq, LPFC_SET_ENABLE_CMF);
8265 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8266 cmf = bf_get(lpfc_mbx_set_feature_cmf,
8267 &mboxq->u.mqe.un.set_feature);
8268 if (rc == MBX_SUCCESS && cmf) {
8269 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
8270 "6218 CMF is enabled: mode %d\n",
8271 phba->cmf_active_mode);
8273 lpfc_printf_log(phba, KERN_WARNING,
8274 LOG_CGN_MGMT | LOG_INIT,
8275 "6219 Enable CMF Mailbox x%x (x%x/x%x) "
8276 "failed, rc:x%x dd:x%x\n",
8277 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8278 lpfc_sli_config_mbox_subsys_get
8280 lpfc_sli_config_mbox_opcode_get
8283 sli4_params->cmf = 0;
8284 phba->cmf_active_mode = LPFC_CFG_OFF;
8288 /* Allocate Congestion Information Buffer */
8290 mp = kmalloc(sizeof(*mp), GFP_KERNEL);
8292 mp->virt = dma_alloc_coherent
8293 (&phba->pcidev->dev,
8294 sizeof(struct lpfc_cgn_info),
8295 &mp->phys, GFP_KERNEL);
8296 if (!mp || !mp->virt) {
8297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8298 "2640 Failed to alloc memory "
8299 "for Congestion Info\n");
8301 sli4_params->cmf = 0;
8302 phba->cmf_active_mode = LPFC_CFG_OFF;
8307 /* initialize congestion buffer info */
8308 lpfc_init_congestion_buf(phba);
8309 lpfc_init_congestion_stat(phba);
8311 /* Zero out Congestion Signal counters */
8312 atomic64_set(&phba->cgn_acqe_stat.alarm, 0);
8313 atomic64_set(&phba->cgn_acqe_stat.warn, 0);
8316 rc = lpfc_sli4_cgn_params_read(phba);
8318 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
8319 "6242 Error reading Cgn Params (%d)\n",
8321 /* Ensure CGN Mode is off */
8322 sli4_params->cmf = 0;
8324 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
8325 "6243 CGN Event empty object.\n");
8326 /* Ensure CGN Mode is off */
8327 sli4_params->cmf = 0;
8331 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
8332 "6220 CMF is disabled\n");
8335 /* Only register congestion buffer with firmware if BOTH
8336 * CMF and E2E are enabled.
8338 if (sli4_params->cmf && sli4_params->mi_ver) {
8339 rc = lpfc_reg_congestion_buf(phba);
8341 dma_free_coherent(&phba->pcidev->dev,
8342 sizeof(struct lpfc_cgn_info),
8343 phba->cgn_i->virt, phba->cgn_i->phys);
8346 /* Ensure CGN Mode is off */
8347 phba->cmf_active_mode = LPFC_CFG_OFF;
8348 sli4_params->cmf = 0;
8352 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8353 "6470 Setup MI version %d CMF %d mode %d\n",
8354 sli4_params->mi_ver, sli4_params->cmf,
8355 phba->cmf_active_mode);
8357 mempool_free(mboxq, phba->mbox_mem_pool);
8359 /* Initialize atomic counters */
8360 atomic_set(&phba->cgn_fabric_warn_cnt, 0);
8361 atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
8362 atomic_set(&phba->cgn_sync_alarm_cnt, 0);
8363 atomic_set(&phba->cgn_sync_warn_cnt, 0);
8364 atomic_set(&phba->cgn_driver_evt_cnt, 0);
8365 atomic_set(&phba->cgn_latency_evt_cnt, 0);
8366 atomic64_set(&phba->cgn_latency_evt, 0);
8368 phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
8370 /* Allocate RX Monitor Buffer */
8371 if (!phba->rx_monitor) {
8372 phba->rx_monitor = kzalloc(sizeof(*phba->rx_monitor),
8375 if (!phba->rx_monitor) {
8376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8377 "2644 Failed to alloc memory "
8378 "for RX Monitor Buffer\n");
8382 /* Instruct the rx_monitor object to instantiate its ring */
8383 if (lpfc_rx_monitor_create_ring(phba->rx_monitor,
8384 LPFC_MAX_RXMONITOR_ENTRY)) {
8385 kfree(phba->rx_monitor);
8386 phba->rx_monitor = NULL;
8387 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8388 "2645 Failed to alloc memory "
8389 "for RX Monitor's Ring\n");
8398 lpfc_set_host_tm(struct lpfc_hba *phba)
8400 LPFC_MBOXQ_t *mboxq;
8402 struct timespec64 cur_time;
8404 uint32_t month, day, year;
8405 uint32_t hour, minute, second;
8406 struct lpfc_mbx_set_host_date_time *tm;
8408 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8412 len = sizeof(struct lpfc_mbx_set_host_data) -
8413 sizeof(struct lpfc_sli4_cfg_mhdr);
8414 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8415 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
8416 LPFC_SLI4_MBX_EMBED);
8418 mboxq->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_DATE_TIME;
8419 mboxq->u.mqe.un.set_host_data.param_len =
8420 sizeof(struct lpfc_mbx_set_host_date_time);
8421 tm = &mboxq->u.mqe.un.set_host_data.un.tm;
8422 ktime_get_real_ts64(&cur_time);
8423 time64_to_tm(cur_time.tv_sec, 0, &broken);
8424 month = broken.tm_mon + 1;
8425 day = broken.tm_mday;
8426 year = broken.tm_year - 100;
8427 hour = broken.tm_hour;
8428 minute = broken.tm_min;
8429 second = broken.tm_sec;
8430 bf_set(lpfc_mbx_set_host_month, tm, month);
8431 bf_set(lpfc_mbx_set_host_day, tm, day);
8432 bf_set(lpfc_mbx_set_host_year, tm, year);
8433 bf_set(lpfc_mbx_set_host_hour, tm, hour);
8434 bf_set(lpfc_mbx_set_host_min, tm, minute);
8435 bf_set(lpfc_mbx_set_host_sec, tm, second);
8437 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8438 mempool_free(mboxq, phba->mbox_mem_pool);
8443 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
8444 * @phba: Pointer to HBA context object.
8446 * This function is the main SLI4 device initialization PCI function. This
8447 * function is called by the HBA initialization code, HBA reset code and
8448 * HBA error attention handler code. Caller is not required to hold any
8452 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
8454 int rc, i, cnt, len, dd;
8455 LPFC_MBOXQ_t *mboxq;
8456 struct lpfc_mqe *mqe;
8459 uint32_t ftr_rsp = 0;
8460 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
8461 struct lpfc_vport *vport = phba->pport;
8462 struct lpfc_dmabuf *mp;
8463 struct lpfc_rqb *rqbp;
8466 /* Perform a PCI function reset to start from clean */
8467 rc = lpfc_pci_function_reset(phba);
8471 /* Check the HBA Host Status Register for readyness */
8472 rc = lpfc_sli4_post_status_check(phba);
8476 spin_lock_irq(&phba->hbalock);
8477 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
8478 flg = phba->sli.sli_flag;
8479 spin_unlock_irq(&phba->hbalock);
8480 /* Allow a little time after setting SLI_ACTIVE for any polled
8481 * MBX commands to complete via BSG.
8483 for (i = 0; i < 50 && (flg & LPFC_SLI_MBOX_ACTIVE); i++) {
8485 spin_lock_irq(&phba->hbalock);
8486 flg = phba->sli.sli_flag;
8487 spin_unlock_irq(&phba->hbalock);
8490 phba->hba_flag &= ~HBA_SETUP;
8492 lpfc_sli4_dip(phba);
8495 * Allocate a single mailbox container for initializing the
8498 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8502 /* Issue READ_REV to collect vpd and FW information. */
8503 vpd_size = SLI4_PAGE_SIZE;
8504 vpd = kzalloc(vpd_size, GFP_KERNEL);
8510 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
8516 mqe = &mboxq->u.mqe;
8517 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
8518 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
8519 phba->hba_flag |= HBA_FCOE_MODE;
8520 phba->fcp_embed_io = 0; /* SLI4 FC support only */
8522 phba->hba_flag &= ~HBA_FCOE_MODE;
8525 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
8527 phba->hba_flag |= HBA_FIP_SUPPORT;
8529 phba->hba_flag &= ~HBA_FIP_SUPPORT;
8531 phba->hba_flag &= ~HBA_IOQ_FLUSH;
8533 if (phba->sli_rev != LPFC_SLI_REV4) {
8534 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8535 "0376 READ_REV Error. SLI Level %d "
8536 "FCoE enabled %d\n",
8537 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
8543 rc = lpfc_set_host_tm(phba);
8544 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
8545 "6468 Set host date / time: Status x%x:\n", rc);
8548 * Continue initialization with default values even if driver failed
8549 * to read FCoE param config regions, only read parameters if the
8552 if (phba->hba_flag & HBA_FCOE_MODE &&
8553 lpfc_sli4_read_fcoe_params(phba))
8554 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
8555 "2570 Failed to read FCoE parameters\n");
8558 * Retrieve sli4 device physical port name, failure of doing it
8559 * is considered as non-fatal.
8561 rc = lpfc_sli4_retrieve_pport_name(phba);
8563 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8564 "3080 Successful retrieving SLI4 device "
8565 "physical port name: %s.\n", phba->Port);
8567 rc = lpfc_sli4_get_ctl_attr(phba);
8569 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8570 "8351 Successful retrieving SLI4 device "
8574 * Evaluate the read rev and vpd data. Populate the driver
8575 * state with the results. If this routine fails, the failure
8576 * is not fatal as the driver will use generic values.
8578 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
8580 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8581 "0377 Error %d parsing vpd. "
8582 "Using defaults.\n", rc);
8585 /* Save information as VPD data */
8586 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
8587 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
8590 * This is because first G7 ASIC doesn't support the standard
8591 * 0x5a NVME cmd descriptor type/subtype
8593 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8594 LPFC_SLI_INTF_IF_TYPE_6) &&
8595 (phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
8596 (phba->vpd.rev.smRev == 0) &&
8597 (phba->cfg_nvme_embed_cmd == 1))
8598 phba->cfg_nvme_embed_cmd = 0;
8600 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
8601 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
8603 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
8605 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
8607 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
8609 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
8610 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
8611 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
8612 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
8613 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
8614 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
8615 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8616 "(%d):0380 READ_REV Status x%x "
8617 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
8618 mboxq->vport ? mboxq->vport->vpi : 0,
8619 bf_get(lpfc_mqe_status, mqe),
8620 phba->vpd.rev.opFwName,
8621 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
8622 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
8624 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8625 LPFC_SLI_INTF_IF_TYPE_0) {
8626 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
8627 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8628 if (rc == MBX_SUCCESS) {
8629 phba->hba_flag |= HBA_RECOVERABLE_UE;
8630 /* Set 1Sec interval to detect UE */
8631 phba->eratt_poll_interval = 1;
8632 phba->sli4_hba.ue_to_sr = bf_get(
8633 lpfc_mbx_set_feature_UESR,
8634 &mboxq->u.mqe.un.set_feature);
8635 phba->sli4_hba.ue_to_rp = bf_get(
8636 lpfc_mbx_set_feature_UERP,
8637 &mboxq->u.mqe.un.set_feature);
8641 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
8642 /* Enable MDS Diagnostics only if the SLI Port supports it */
8643 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
8644 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8645 if (rc != MBX_SUCCESS)
8646 phba->mds_diags_support = 0;
8650 * Discover the port's supported feature set and match it against the
8653 lpfc_request_features(phba, mboxq);
8654 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8660 /* Disable VMID if app header is not supported */
8661 if (phba->cfg_vmid_app_header && !(bf_get(lpfc_mbx_rq_ftr_rsp_ashdr,
8662 &mqe->un.req_ftrs))) {
8663 bf_set(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags, 0);
8664 phba->cfg_vmid_app_header = 0;
8665 lpfc_printf_log(phba, KERN_DEBUG, LOG_SLI,
8666 "1242 vmid feature not supported\n");
8670 * The port must support FCP initiator mode as this is the
8671 * only mode running in the host.
8673 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
8674 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8675 "0378 No support for fcpi mode.\n");
8679 /* Performance Hints are ONLY for FCoE */
8680 if (phba->hba_flag & HBA_FCOE_MODE) {
8681 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
8682 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
8684 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
8688 * If the port cannot support the host's requested features
8689 * then turn off the global config parameters to disable the
8690 * feature in the driver. This is not a fatal error.
8692 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8693 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
8694 phba->cfg_enable_bg = 0;
8695 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
8700 if (phba->max_vpi && phba->cfg_enable_npiv &&
8701 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
8705 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8706 "0379 Feature Mismatch Data: x%08x %08x "
8707 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
8708 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
8709 phba->cfg_enable_npiv, phba->max_vpi);
8710 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
8711 phba->cfg_enable_bg = 0;
8712 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
8713 phba->cfg_enable_npiv = 0;
8716 /* These SLI3 features are assumed in SLI4 */
8717 spin_lock_irq(&phba->hbalock);
8718 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
8719 spin_unlock_irq(&phba->hbalock);
8721 /* Always try to enable dual dump feature if we can */
8722 lpfc_set_features(phba, mboxq, LPFC_SET_DUAL_DUMP);
8723 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8724 dd = bf_get(lpfc_mbx_set_feature_dd, &mboxq->u.mqe.un.set_feature);
8725 if ((rc == MBX_SUCCESS) && (dd == LPFC_ENABLE_DUAL_DUMP))
8726 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8727 "6448 Dual Dump is enabled\n");
8729 lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_INIT,
8730 "6447 Dual Dump Mailbox x%x (x%x/x%x) failed, "
8732 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8733 lpfc_sli_config_mbox_subsys_get(
8735 lpfc_sli_config_mbox_opcode_get(
8739 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
8740 * calls depends on these resources to complete port setup.
8742 rc = lpfc_sli4_alloc_resource_identifiers(phba);
8744 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8745 "2920 Failed to alloc Resource IDs "
8750 lpfc_set_host_data(phba, mboxq);
8752 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8754 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8755 "2134 Failed to set host os driver version %x",
8759 /* Read the port's service parameters. */
8760 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
8762 phba->link_state = LPFC_HBA_ERROR;
8767 mboxq->vport = vport;
8768 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8769 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
8770 if (rc == MBX_SUCCESS) {
8771 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
8776 * This memory was allocated by the lpfc_read_sparam routine but is
8777 * no longer needed. It is released and ctx_buf NULLed to prevent
8778 * unintended pointer access as the mbox is reused.
8780 lpfc_mbuf_free(phba, mp->virt, mp->phys);
8782 mboxq->ctx_buf = NULL;
8784 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8785 "0382 READ_SPARAM command failed "
8786 "status %d, mbxStatus x%x\n",
8787 rc, bf_get(lpfc_mqe_status, mqe));
8788 phba->link_state = LPFC_HBA_ERROR;
8793 lpfc_update_vport_wwn(vport);
8795 /* Update the fc_host data structures with new wwn. */
8796 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
8797 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
8799 /* Create all the SLI4 queues */
8800 rc = lpfc_sli4_queue_create(phba);
8802 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8803 "3089 Failed to allocate queues\n");
8807 /* Set up all the queues to the device */
8808 rc = lpfc_sli4_queue_setup(phba);
8810 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8811 "0381 Error %d during queue setup.\n ", rc);
8812 goto out_stop_timers;
8814 /* Initialize the driver internal SLI layer lists. */
8815 lpfc_sli4_setup(phba);
8816 lpfc_sli4_queue_init(phba);
8818 /* update host els xri-sgl sizes and mappings */
8819 rc = lpfc_sli4_els_sgl_update(phba);
8821 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8822 "1400 Failed to update xri-sgl size and "
8823 "mapping: %d\n", rc);
8824 goto out_destroy_queue;
8827 /* register the els sgl pool to the port */
8828 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
8829 phba->sli4_hba.els_xri_cnt);
8830 if (unlikely(rc < 0)) {
8831 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8832 "0582 Error %d during els sgl post "
8835 goto out_destroy_queue;
8837 phba->sli4_hba.els_xri_cnt = rc;
8839 if (phba->nvmet_support) {
8840 /* update host nvmet xri-sgl sizes and mappings */
8841 rc = lpfc_sli4_nvmet_sgl_update(phba);
8843 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8844 "6308 Failed to update nvmet-sgl size "
8845 "and mapping: %d\n", rc);
8846 goto out_destroy_queue;
8849 /* register the nvmet sgl pool to the port */
8850 rc = lpfc_sli4_repost_sgl_list(
8852 &phba->sli4_hba.lpfc_nvmet_sgl_list,
8853 phba->sli4_hba.nvmet_xri_cnt);
8854 if (unlikely(rc < 0)) {
8855 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8856 "3117 Error %d during nvmet "
8859 goto out_destroy_queue;
8861 phba->sli4_hba.nvmet_xri_cnt = rc;
8863 /* We allocate an iocbq for every receive context SGL.
8864 * The additional allocation is for abort and ls handling.
8866 cnt = phba->sli4_hba.nvmet_xri_cnt +
8867 phba->sli4_hba.max_cfg_param.max_xri;
8869 /* update host common xri-sgl sizes and mappings */
8870 rc = lpfc_sli4_io_sgl_update(phba);
8872 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8873 "6082 Failed to update nvme-sgl size "
8874 "and mapping: %d\n", rc);
8875 goto out_destroy_queue;
8878 /* register the allocated common sgl pool to the port */
8879 rc = lpfc_sli4_repost_io_sgl_list(phba);
8881 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8882 "6116 Error %d during nvme sgl post "
8884 /* Some NVME buffers were moved to abort nvme list */
8885 /* A pci function reset will repost them */
8887 goto out_destroy_queue;
8889 /* Each lpfc_io_buf job structure has an iocbq element.
8890 * This cnt provides for abort, els, ct and ls requests.
8892 cnt = phba->sli4_hba.max_cfg_param.max_xri;
8895 if (!phba->sli.iocbq_lookup) {
8896 /* Initialize and populate the iocb list per host */
8897 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8898 "2821 initialize iocb list with %d entries\n",
8900 rc = lpfc_init_iocb_list(phba, cnt);
8902 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8903 "1413 Failed to init iocb list.\n");
8904 goto out_destroy_queue;
8908 if (phba->nvmet_support)
8909 lpfc_nvmet_create_targetport(phba);
8911 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
8912 /* Post initial buffers to all RQs created */
8913 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
8914 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
8915 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
8916 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
8917 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
8918 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
8919 rqbp->buffer_count = 0;
8921 lpfc_post_rq_buffer(
8922 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
8923 phba->sli4_hba.nvmet_mrq_data[i],
8924 phba->cfg_nvmet_mrq_post, i);
8928 /* Post the rpi header region to the device. */
8929 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
8931 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8932 "0393 Error %d during rpi post operation\n",
8935 goto out_free_iocblist;
8937 lpfc_sli4_node_prep(phba);
8939 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
8940 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
8942 * The FC Port needs to register FCFI (index 0)
8944 lpfc_reg_fcfi(phba, mboxq);
8945 mboxq->vport = phba->pport;
8946 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8947 if (rc != MBX_SUCCESS)
8948 goto out_unset_queue;
8950 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
8951 &mboxq->u.mqe.un.reg_fcfi);
8953 /* We are a NVME Target mode with MRQ > 1 */
8955 /* First register the FCFI */
8956 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
8957 mboxq->vport = phba->pport;
8958 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8959 if (rc != MBX_SUCCESS)
8960 goto out_unset_queue;
8962 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
8963 &mboxq->u.mqe.un.reg_fcfi_mrq);
8965 /* Next register the MRQs */
8966 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
8967 mboxq->vport = phba->pport;
8968 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8969 if (rc != MBX_SUCCESS)
8970 goto out_unset_queue;
8973 /* Check if the port is configured to be disabled */
8974 lpfc_sli_read_link_ste(phba);
8977 /* Don't post more new bufs if repost already recovered
8980 if (phba->nvmet_support == 0) {
8981 if (phba->sli4_hba.io_xri_cnt == 0) {
8982 len = lpfc_new_io_buf(
8983 phba, phba->sli4_hba.io_xri_max);
8986 goto out_unset_queue;
8989 if (phba->cfg_xri_rebalancing)
8990 lpfc_create_multixri_pools(phba);
8993 phba->cfg_xri_rebalancing = 0;
8996 /* Allow asynchronous mailbox command to go through */
8997 spin_lock_irq(&phba->hbalock);
8998 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8999 spin_unlock_irq(&phba->hbalock);
9001 /* Post receive buffers to the device */
9002 lpfc_sli4_rb_setup(phba);
9004 /* Reset HBA FCF states after HBA reset */
9005 phba->fcf.fcf_flag = 0;
9006 phba->fcf.current_rec.flag = 0;
9008 /* Start the ELS watchdog timer */
9009 mod_timer(&vport->els_tmofunc,
9010 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
9012 /* Start heart beat timer */
9013 mod_timer(&phba->hb_tmofunc,
9014 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
9015 phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
9016 phba->last_completion_time = jiffies;
9018 /* start eq_delay heartbeat */
9019 if (phba->cfg_auto_imax)
9020 queue_delayed_work(phba->wq, &phba->eq_delay_work,
9021 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
9023 /* start per phba idle_stat_delay heartbeat */
9024 lpfc_init_idle_stat_hb(phba);
9026 /* Start error attention (ERATT) polling timer */
9027 mod_timer(&phba->eratt_poll,
9028 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
9031 * The port is ready, set the host's link state to LINK_DOWN
9032 * in preparation for link interrupts.
9034 spin_lock_irq(&phba->hbalock);
9035 phba->link_state = LPFC_LINK_DOWN;
9037 /* Check if physical ports are trunked */
9038 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
9039 phba->trunk_link.link0.state = LPFC_LINK_DOWN;
9040 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
9041 phba->trunk_link.link1.state = LPFC_LINK_DOWN;
9042 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
9043 phba->trunk_link.link2.state = LPFC_LINK_DOWN;
9044 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
9045 phba->trunk_link.link3.state = LPFC_LINK_DOWN;
9046 spin_unlock_irq(&phba->hbalock);
9048 /* Arm the CQs and then EQs on device */
9049 lpfc_sli4_arm_cqeq_intr(phba);
9051 /* Indicate device interrupt mode */
9052 phba->sli4_hba.intr_enable = 1;
9054 /* Setup CMF after HBA is initialized */
9055 lpfc_cmf_setup(phba);
9057 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
9058 (phba->hba_flag & LINK_DISABLED)) {
9059 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9060 "3103 Adapter Link is disabled.\n");
9061 lpfc_down_link(phba, mboxq);
9062 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9063 if (rc != MBX_SUCCESS) {
9064 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9065 "3104 Adapter failed to issue "
9066 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
9067 goto out_io_buff_free;
9069 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
9070 /* don't perform init_link on SLI4 FC port loopback test */
9071 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
9072 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
9074 goto out_io_buff_free;
9077 mempool_free(mboxq, phba->mbox_mem_pool);
9079 /* Enable RAS FW log support */
9080 lpfc_sli4_ras_setup(phba);
9082 phba->hba_flag |= HBA_SETUP;
9086 /* Free allocated IO Buffers */
9089 /* Unset all the queues set up in this routine when error out */
9090 lpfc_sli4_queue_unset(phba);
9092 lpfc_free_iocb_list(phba);
9094 lpfc_sli4_queue_destroy(phba);
9096 lpfc_stop_hba_timers(phba);
9098 mempool_free(mboxq, phba->mbox_mem_pool);
9103 * lpfc_mbox_timeout - Timeout call back function for mbox timer
9104 * @t: Context to fetch pointer to hba structure from.
9106 * This is the callback function for mailbox timer. The mailbox
9107 * timer is armed when a new mailbox command is issued and the timer
9108 * is deleted when the mailbox complete. The function is called by
9109 * the kernel timer code when a mailbox does not complete within
9110 * expected time. This function wakes up the worker thread to
9111 * process the mailbox timeout and returns. All the processing is
9112 * done by the worker thread function lpfc_mbox_timeout_handler.
9115 lpfc_mbox_timeout(struct timer_list *t)
9117 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
9118 unsigned long iflag;
9119 uint32_t tmo_posted;
9121 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
9122 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
9124 phba->pport->work_port_events |= WORKER_MBOX_TMO;
9125 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
9128 lpfc_worker_wake_up(phba);
9133 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
9135 * @phba: Pointer to HBA context object.
9137 * This function checks if any mailbox completions are present on the mailbox
9141 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
9145 struct lpfc_queue *mcq;
9146 struct lpfc_mcqe *mcqe;
9147 bool pending_completions = false;
9150 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
9153 /* Check for completions on mailbox completion queue */
9155 mcq = phba->sli4_hba.mbx_cq;
9156 idx = mcq->hba_index;
9157 qe_valid = mcq->qe_valid;
9158 while (bf_get_le32(lpfc_cqe_valid,
9159 (struct lpfc_cqe *)lpfc_sli4_qe(mcq, idx)) == qe_valid) {
9160 mcqe = (struct lpfc_mcqe *)(lpfc_sli4_qe(mcq, idx));
9161 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
9162 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
9163 pending_completions = true;
9166 idx = (idx + 1) % mcq->entry_count;
9167 if (mcq->hba_index == idx)
9170 /* if the index wrapped around, toggle the valid bit */
9171 if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
9172 qe_valid = (qe_valid) ? 0 : 1;
9174 return pending_completions;
9179 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
9181 * @phba: Pointer to HBA context object.
9183 * For sli4, it is possible to miss an interrupt. As such mbox completions
9184 * maybe missed causing erroneous mailbox timeouts to occur. This function
9185 * checks to see if mbox completions are on the mailbox completion queue
9186 * and will process all the completions associated with the eq for the
9187 * mailbox completion queue.
9190 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
9192 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
9194 struct lpfc_queue *fpeq = NULL;
9195 struct lpfc_queue *eq;
9198 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
9201 /* Find the EQ associated with the mbox CQ */
9202 if (sli4_hba->hdwq) {
9203 for (eqidx = 0; eqidx < phba->cfg_irq_chann; eqidx++) {
9204 eq = phba->sli4_hba.hba_eq_hdl[eqidx].eq;
9205 if (eq && eq->queue_id == sli4_hba->mbx_cq->assoc_qid) {
9214 /* Turn off interrupts from this EQ */
9216 sli4_hba->sli4_eq_clr_intr(fpeq);
9218 /* Check to see if a mbox completion is pending */
9220 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
9223 * If a mbox completion is pending, process all the events on EQ
9224 * associated with the mbox completion queue (this could include
9225 * mailbox commands, async events, els commands, receive queue data
9230 /* process and rearm the EQ */
9231 lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM,
9234 /* Always clear and re-arm the EQ */
9235 sli4_hba->sli4_write_eq_db(phba, fpeq, 0, LPFC_QUEUE_REARM);
9237 return mbox_pending;
9242 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
9243 * @phba: Pointer to HBA context object.
9245 * This function is called from worker thread when a mailbox command times out.
9246 * The caller is not required to hold any locks. This function will reset the
9247 * HBA and recover all the pending commands.
9250 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
9252 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
9253 MAILBOX_t *mb = NULL;
9255 struct lpfc_sli *psli = &phba->sli;
9257 /* If the mailbox completed, process the completion */
9258 lpfc_sli4_process_missed_mbox_completions(phba);
9260 if (!(psli->sli_flag & LPFC_SLI_ACTIVE))
9265 /* Check the pmbox pointer first. There is a race condition
9266 * between the mbox timeout handler getting executed in the
9267 * worklist and the mailbox actually completing. When this
9268 * race condition occurs, the mbox_active will be NULL.
9270 spin_lock_irq(&phba->hbalock);
9271 if (pmbox == NULL) {
9272 lpfc_printf_log(phba, KERN_WARNING,
9274 "0353 Active Mailbox cleared - mailbox timeout "
9276 spin_unlock_irq(&phba->hbalock);
9280 /* Mbox cmd <mbxCommand> timeout */
9281 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9282 "0310 Mailbox command x%x timeout Data: x%x x%x x%px\n",
9284 phba->pport->port_state,
9286 phba->sli.mbox_active);
9287 spin_unlock_irq(&phba->hbalock);
9289 /* Setting state unknown so lpfc_sli_abort_iocb_ring
9290 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
9291 * it to fail all outstanding SCSI IO.
9293 set_bit(MBX_TMO_ERR, &phba->bit_flags);
9294 spin_lock_irq(&phba->pport->work_port_lock);
9295 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9296 spin_unlock_irq(&phba->pport->work_port_lock);
9297 spin_lock_irq(&phba->hbalock);
9298 phba->link_state = LPFC_LINK_UNKNOWN;
9299 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9300 spin_unlock_irq(&phba->hbalock);
9302 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9303 "0345 Resetting board due to mailbox timeout\n");
9305 /* Reset the HBA device */
9306 lpfc_reset_hba(phba);
9310 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
9311 * @phba: Pointer to HBA context object.
9312 * @pmbox: Pointer to mailbox object.
9313 * @flag: Flag indicating how the mailbox need to be processed.
9315 * This function is called by discovery code and HBA management code
9316 * to submit a mailbox command to firmware with SLI-3 interface spec. This
9317 * function gets the hbalock to protect the data structures.
9318 * The mailbox command can be submitted in polling mode, in which case
9319 * this function will wait in a polling loop for the completion of the
9321 * If the mailbox is submitted in no_wait mode (not polling) the
9322 * function will submit the command and returns immediately without waiting
9323 * for the mailbox completion. The no_wait is supported only when HBA
9324 * is in SLI2/SLI3 mode - interrupts are enabled.
9325 * The SLI interface allows only one mailbox pending at a time. If the
9326 * mailbox is issued in polling mode and there is already a mailbox
9327 * pending, then the function will return an error. If the mailbox is issued
9328 * in NO_WAIT mode and there is a mailbox pending already, the function
9329 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
9330 * The sli layer owns the mailbox object until the completion of mailbox
9331 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
9332 * return codes the caller owns the mailbox command after the return of
9336 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
9340 struct lpfc_sli *psli = &phba->sli;
9341 uint32_t status, evtctr;
9342 uint32_t ha_copy, hc_copy;
9344 unsigned long timeout;
9345 unsigned long drvr_flag = 0;
9346 uint32_t word0, ldata;
9347 void __iomem *to_slim;
9348 int processing_queue = 0;
9350 spin_lock_irqsave(&phba->hbalock, drvr_flag);
9352 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9353 /* processing mbox queue from intr_handler */
9354 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
9355 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9358 processing_queue = 1;
9359 pmbox = lpfc_mbox_get(phba);
9361 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9366 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
9367 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
9369 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9370 lpfc_printf_log(phba, KERN_ERR,
9371 LOG_MBOX | LOG_VPORT,
9372 "1806 Mbox x%x failed. No vport\n",
9373 pmbox->u.mb.mbxCommand);
9375 goto out_not_finished;
9379 /* If the PCI channel is in offline state, do not post mbox. */
9380 if (unlikely(pci_channel_offline(phba->pcidev))) {
9381 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9382 goto out_not_finished;
9385 /* If HBA has a deferred error attention, fail the iocb. */
9386 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
9387 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9388 goto out_not_finished;
9394 status = MBX_SUCCESS;
9396 if (phba->link_state == LPFC_HBA_ERROR) {
9397 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9399 /* Mbox command <mbxCommand> cannot issue */
9400 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9401 "(%d):0311 Mailbox command x%x cannot "
9402 "issue Data: x%x x%x\n",
9403 pmbox->vport ? pmbox->vport->vpi : 0,
9404 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
9405 goto out_not_finished;
9408 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
9409 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
9410 !(hc_copy & HC_MBINT_ENA)) {
9411 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9412 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9413 "(%d):2528 Mailbox command x%x cannot "
9414 "issue Data: x%x x%x\n",
9415 pmbox->vport ? pmbox->vport->vpi : 0,
9416 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
9417 goto out_not_finished;
9421 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9422 /* Polling for a mbox command when another one is already active
9423 * is not allowed in SLI. Also, the driver must have established
9424 * SLI2 mode to queue and process multiple mbox commands.
9427 if (flag & MBX_POLL) {
9428 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9430 /* Mbox command <mbxCommand> cannot issue */
9431 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9432 "(%d):2529 Mailbox command x%x "
9433 "cannot issue Data: x%x x%x\n",
9434 pmbox->vport ? pmbox->vport->vpi : 0,
9435 pmbox->u.mb.mbxCommand,
9436 psli->sli_flag, flag);
9437 goto out_not_finished;
9440 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
9441 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9442 /* Mbox command <mbxCommand> cannot issue */
9443 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9444 "(%d):2530 Mailbox command x%x "
9445 "cannot issue Data: x%x x%x\n",
9446 pmbox->vport ? pmbox->vport->vpi : 0,
9447 pmbox->u.mb.mbxCommand,
9448 psli->sli_flag, flag);
9449 goto out_not_finished;
9452 /* Another mailbox command is still being processed, queue this
9453 * command to be processed later.
9455 lpfc_mbox_put(phba, pmbox);
9457 /* Mbox cmd issue - BUSY */
9458 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
9459 "(%d):0308 Mbox cmd issue - BUSY Data: "
9460 "x%x x%x x%x x%x\n",
9461 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
9463 phba->pport ? phba->pport->port_state : 0xff,
9464 psli->sli_flag, flag);
9466 psli->slistat.mbox_busy++;
9467 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9470 lpfc_debugfs_disc_trc(pmbox->vport,
9471 LPFC_DISC_TRC_MBOX_VPORT,
9472 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
9473 (uint32_t)mbx->mbxCommand,
9474 mbx->un.varWords[0], mbx->un.varWords[1]);
9477 lpfc_debugfs_disc_trc(phba->pport,
9479 "MBOX Bsy: cmd:x%x mb:x%x x%x",
9480 (uint32_t)mbx->mbxCommand,
9481 mbx->un.varWords[0], mbx->un.varWords[1]);
9487 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
9489 /* If we are not polling, we MUST be in SLI2 mode */
9490 if (flag != MBX_POLL) {
9491 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
9492 (mbx->mbxCommand != MBX_KILL_BOARD)) {
9493 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9494 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9495 /* Mbox command <mbxCommand> cannot issue */
9496 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9497 "(%d):2531 Mailbox command x%x "
9498 "cannot issue Data: x%x x%x\n",
9499 pmbox->vport ? pmbox->vport->vpi : 0,
9500 pmbox->u.mb.mbxCommand,
9501 psli->sli_flag, flag);
9502 goto out_not_finished;
9504 /* timeout active mbox command */
9505 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
9507 mod_timer(&psli->mbox_tmo, jiffies + timeout);
9510 /* Mailbox cmd <cmd> issue */
9511 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
9512 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
9514 pmbox->vport ? pmbox->vport->vpi : 0,
9516 phba->pport ? phba->pport->port_state : 0xff,
9517 psli->sli_flag, flag);
9519 if (mbx->mbxCommand != MBX_HEARTBEAT) {
9521 lpfc_debugfs_disc_trc(pmbox->vport,
9522 LPFC_DISC_TRC_MBOX_VPORT,
9523 "MBOX Send vport: cmd:x%x mb:x%x x%x",
9524 (uint32_t)mbx->mbxCommand,
9525 mbx->un.varWords[0], mbx->un.varWords[1]);
9528 lpfc_debugfs_disc_trc(phba->pport,
9530 "MBOX Send: cmd:x%x mb:x%x x%x",
9531 (uint32_t)mbx->mbxCommand,
9532 mbx->un.varWords[0], mbx->un.varWords[1]);
9536 psli->slistat.mbox_cmd++;
9537 evtctr = psli->slistat.mbox_event;
9539 /* next set own bit for the adapter and copy over command word */
9540 mbx->mbxOwner = OWN_CHIP;
9542 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9543 /* Populate mbox extension offset word. */
9544 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
9545 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
9546 = (uint8_t *)phba->mbox_ext
9547 - (uint8_t *)phba->mbox;
9550 /* Copy the mailbox extension data */
9551 if (pmbox->in_ext_byte_len && pmbox->ctx_buf) {
9552 lpfc_sli_pcimem_bcopy(pmbox->ctx_buf,
9553 (uint8_t *)phba->mbox_ext,
9554 pmbox->in_ext_byte_len);
9556 /* Copy command data to host SLIM area */
9557 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
9559 /* Populate mbox extension offset word. */
9560 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
9561 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
9562 = MAILBOX_HBA_EXT_OFFSET;
9564 /* Copy the mailbox extension data */
9565 if (pmbox->in_ext_byte_len && pmbox->ctx_buf)
9566 lpfc_memcpy_to_slim(phba->MBslimaddr +
9567 MAILBOX_HBA_EXT_OFFSET,
9568 pmbox->ctx_buf, pmbox->in_ext_byte_len);
9570 if (mbx->mbxCommand == MBX_CONFIG_PORT)
9571 /* copy command data into host mbox for cmpl */
9572 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
9575 /* First copy mbox command data to HBA SLIM, skip past first
9577 to_slim = phba->MBslimaddr + sizeof (uint32_t);
9578 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
9579 MAILBOX_CMD_SIZE - sizeof (uint32_t));
9581 /* Next copy over first word, with mbxOwner set */
9582 ldata = *((uint32_t *)mbx);
9583 to_slim = phba->MBslimaddr;
9584 writel(ldata, to_slim);
9585 readl(to_slim); /* flush */
9587 if (mbx->mbxCommand == MBX_CONFIG_PORT)
9588 /* switch over to host mailbox */
9589 psli->sli_flag |= LPFC_SLI_ACTIVE;
9596 /* Set up reference to mailbox command */
9597 psli->mbox_active = pmbox;
9598 /* Interrupt board to do it */
9599 writel(CA_MBATT, phba->CAregaddr);
9600 readl(phba->CAregaddr); /* flush */
9601 /* Don't wait for it to finish, just return */
9605 /* Set up null reference to mailbox command */
9606 psli->mbox_active = NULL;
9607 /* Interrupt board to do it */
9608 writel(CA_MBATT, phba->CAregaddr);
9609 readl(phba->CAregaddr); /* flush */
9611 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9612 /* First read mbox status word */
9613 word0 = *((uint32_t *)phba->mbox);
9614 word0 = le32_to_cpu(word0);
9616 /* First read mbox status word */
9617 if (lpfc_readl(phba->MBslimaddr, &word0)) {
9618 spin_unlock_irqrestore(&phba->hbalock,
9620 goto out_not_finished;
9624 /* Read the HBA Host Attention Register */
9625 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
9626 spin_unlock_irqrestore(&phba->hbalock,
9628 goto out_not_finished;
9630 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
9633 /* Wait for command to complete */
9634 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
9635 (!(ha_copy & HA_MBATT) &&
9636 (phba->link_state > LPFC_WARM_START))) {
9637 if (time_after(jiffies, timeout)) {
9638 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9639 spin_unlock_irqrestore(&phba->hbalock,
9641 goto out_not_finished;
9644 /* Check if we took a mbox interrupt while we were
9646 if (((word0 & OWN_CHIP) != OWN_CHIP)
9647 && (evtctr != psli->slistat.mbox_event))
9651 spin_unlock_irqrestore(&phba->hbalock,
9654 spin_lock_irqsave(&phba->hbalock, drvr_flag);
9657 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9658 /* First copy command data */
9659 word0 = *((uint32_t *)phba->mbox);
9660 word0 = le32_to_cpu(word0);
9661 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
9664 /* Check real SLIM for any errors */
9665 slimword0 = readl(phba->MBslimaddr);
9666 slimmb = (MAILBOX_t *) & slimword0;
9667 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
9668 && slimmb->mbxStatus) {
9675 /* First copy command data */
9676 word0 = readl(phba->MBslimaddr);
9678 /* Read the HBA Host Attention Register */
9679 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
9680 spin_unlock_irqrestore(&phba->hbalock,
9682 goto out_not_finished;
9686 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9687 /* copy results back to user */
9688 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
9690 /* Copy the mailbox extension data */
9691 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
9692 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
9694 pmbox->out_ext_byte_len);
9697 /* First copy command data */
9698 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
9700 /* Copy the mailbox extension data */
9701 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
9702 lpfc_memcpy_from_slim(
9705 MAILBOX_HBA_EXT_OFFSET,
9706 pmbox->out_ext_byte_len);
9710 writel(HA_MBATT, phba->HAregaddr);
9711 readl(phba->HAregaddr); /* flush */
9713 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9714 status = mbx->mbxStatus;
9717 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
9721 if (processing_queue) {
9722 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
9723 lpfc_mbox_cmpl_put(phba, pmbox);
9725 return MBX_NOT_FINISHED;
9729 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
9730 * @phba: Pointer to HBA context object.
9732 * The function blocks the posting of SLI4 asynchronous mailbox commands from
9733 * the driver internal pending mailbox queue. It will then try to wait out the
9734 * possible outstanding mailbox command before return.
9737 * 0 - the outstanding mailbox command completed; otherwise, the wait for
9738 * the outstanding mailbox command timed out.
9741 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
9743 struct lpfc_sli *psli = &phba->sli;
9744 LPFC_MBOXQ_t *mboxq;
9746 unsigned long timeout = 0;
9748 u8 cmd, subsys, opcode;
9750 /* Mark the asynchronous mailbox command posting as blocked */
9751 spin_lock_irq(&phba->hbalock);
9752 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9753 /* Determine how long we might wait for the active mailbox
9754 * command to be gracefully completed by firmware.
9756 if (phba->sli.mbox_active)
9757 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
9758 phba->sli.mbox_active) *
9760 spin_unlock_irq(&phba->hbalock);
9762 /* Make sure the mailbox is really active */
9764 lpfc_sli4_process_missed_mbox_completions(phba);
9766 /* Wait for the outstanding mailbox command to complete */
9767 while (phba->sli.mbox_active) {
9768 /* Check active mailbox complete status every 2ms */
9770 if (time_after(jiffies, timeout)) {
9771 /* Timeout, mark the outstanding cmd not complete */
9773 /* Sanity check sli.mbox_active has not completed or
9774 * cancelled from another context during last 2ms sleep,
9775 * so take hbalock to be sure before logging.
9777 spin_lock_irq(&phba->hbalock);
9778 if (phba->sli.mbox_active) {
9779 mboxq = phba->sli.mbox_active;
9780 cmd = mboxq->u.mb.mbxCommand;
9781 subsys = lpfc_sli_config_mbox_subsys_get(phba,
9783 opcode = lpfc_sli_config_mbox_opcode_get(phba,
9785 sli_flag = psli->sli_flag;
9786 spin_unlock_irq(&phba->hbalock);
9787 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9788 "2352 Mailbox command x%x "
9789 "(x%x/x%x) sli_flag x%x could "
9791 cmd, subsys, opcode,
9794 spin_unlock_irq(&phba->hbalock);
9802 /* Can not cleanly block async mailbox command, fails it */
9804 spin_lock_irq(&phba->hbalock);
9805 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
9806 spin_unlock_irq(&phba->hbalock);
9812 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
9813 * @phba: Pointer to HBA context object.
9815 * The function unblocks and resume posting of SLI4 asynchronous mailbox
9816 * commands from the driver internal pending mailbox queue. It makes sure
9817 * that there is no outstanding mailbox command before resuming posting
9818 * asynchronous mailbox commands. If, for any reason, there is outstanding
9819 * mailbox command, it will try to wait it out before resuming asynchronous
9820 * mailbox command posting.
9823 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
9825 struct lpfc_sli *psli = &phba->sli;
9827 spin_lock_irq(&phba->hbalock);
9828 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
9829 /* Asynchronous mailbox posting is not blocked, do nothing */
9830 spin_unlock_irq(&phba->hbalock);
9834 /* Outstanding synchronous mailbox command is guaranteed to be done,
9835 * successful or timeout, after timing-out the outstanding mailbox
9836 * command shall always be removed, so just unblock posting async
9837 * mailbox command and resume
9839 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
9840 spin_unlock_irq(&phba->hbalock);
9842 /* wake up worker thread to post asynchronous mailbox command */
9843 lpfc_worker_wake_up(phba);
9847 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
9848 * @phba: Pointer to HBA context object.
9849 * @mboxq: Pointer to mailbox object.
9851 * The function waits for the bootstrap mailbox register ready bit from
9852 * port for twice the regular mailbox command timeout value.
9854 * 0 - no timeout on waiting for bootstrap mailbox register ready.
9855 * MBXERR_ERROR - wait for bootstrap mailbox register timed out or port
9856 * is in an unrecoverable state.
9859 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9862 unsigned long timeout;
9863 struct lpfc_register bmbx_reg;
9864 struct lpfc_register portstat_reg = {-1};
9866 /* Sanity check - there is no point to wait if the port is in an
9867 * unrecoverable state.
9869 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
9870 LPFC_SLI_INTF_IF_TYPE_2) {
9871 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9872 &portstat_reg.word0) ||
9873 lpfc_sli4_unrecoverable_port(&portstat_reg)) {
9874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9875 "3858 Skipping bmbx ready because "
9876 "Port Status x%x\n",
9877 portstat_reg.word0);
9878 return MBXERR_ERROR;
9882 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
9886 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
9887 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
9891 if (time_after(jiffies, timeout))
9892 return MBXERR_ERROR;
9893 } while (!db_ready);
9899 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
9900 * @phba: Pointer to HBA context object.
9901 * @mboxq: Pointer to mailbox object.
9903 * The function posts a mailbox to the port. The mailbox is expected
9904 * to be comletely filled in and ready for the port to operate on it.
9905 * This routine executes a synchronous completion operation on the
9906 * mailbox by polling for its completion.
9908 * The caller must not be holding any locks when calling this routine.
9911 * MBX_SUCCESS - mailbox posted successfully
9912 * Any of the MBX error values.
9915 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9917 int rc = MBX_SUCCESS;
9918 unsigned long iflag;
9919 uint32_t mcqe_status;
9921 struct lpfc_sli *psli = &phba->sli;
9922 struct lpfc_mqe *mb = &mboxq->u.mqe;
9923 struct lpfc_bmbx_create *mbox_rgn;
9924 struct dma_address *dma_address;
9927 * Only one mailbox can be active to the bootstrap mailbox region
9928 * at a time and there is no queueing provided.
9930 spin_lock_irqsave(&phba->hbalock, iflag);
9931 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9932 spin_unlock_irqrestore(&phba->hbalock, iflag);
9933 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9934 "(%d):2532 Mailbox command x%x (x%x/x%x) "
9935 "cannot issue Data: x%x x%x\n",
9936 mboxq->vport ? mboxq->vport->vpi : 0,
9937 mboxq->u.mb.mbxCommand,
9938 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
9939 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
9940 psli->sli_flag, MBX_POLL);
9941 return MBXERR_ERROR;
9943 /* The server grabs the token and owns it until release */
9944 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
9945 phba->sli.mbox_active = mboxq;
9946 spin_unlock_irqrestore(&phba->hbalock, iflag);
9948 /* wait for bootstrap mbox register for readyness */
9949 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
9953 * Initialize the bootstrap memory region to avoid stale data areas
9954 * in the mailbox post. Then copy the caller's mailbox contents to
9955 * the bmbx mailbox region.
9957 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
9958 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
9959 lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
9960 sizeof(struct lpfc_mqe));
9962 /* Post the high mailbox dma address to the port and wait for ready. */
9963 dma_address = &phba->sli4_hba.bmbx.dma_address;
9964 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
9966 /* wait for bootstrap mbox register for hi-address write done */
9967 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
9971 /* Post the low mailbox dma address to the port. */
9972 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
9974 /* wait for bootstrap mbox register for low address write done */
9975 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
9980 * Read the CQ to ensure the mailbox has completed.
9981 * If so, update the mailbox status so that the upper layers
9982 * can complete the request normally.
9984 lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
9985 sizeof(struct lpfc_mqe));
9986 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
9987 lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
9988 sizeof(struct lpfc_mcqe));
9989 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
9991 * When the CQE status indicates a failure and the mailbox status
9992 * indicates success then copy the CQE status into the mailbox status
9993 * (and prefix it with x4000).
9995 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
9996 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
9997 bf_set(lpfc_mqe_status, mb,
9998 (LPFC_MBX_ERROR_RANGE | mcqe_status));
10001 lpfc_sli4_swap_str(phba, mboxq);
10003 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
10004 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
10005 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
10006 " x%x x%x CQ: x%x x%x x%x x%x\n",
10007 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
10008 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
10009 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
10010 bf_get(lpfc_mqe_status, mb),
10011 mb->un.mb_words[0], mb->un.mb_words[1],
10012 mb->un.mb_words[2], mb->un.mb_words[3],
10013 mb->un.mb_words[4], mb->un.mb_words[5],
10014 mb->un.mb_words[6], mb->un.mb_words[7],
10015 mb->un.mb_words[8], mb->un.mb_words[9],
10016 mb->un.mb_words[10], mb->un.mb_words[11],
10017 mb->un.mb_words[12], mboxq->mcqe.word0,
10018 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
10019 mboxq->mcqe.trailer);
10021 /* We are holding the token, no needed for lock when release */
10022 spin_lock_irqsave(&phba->hbalock, iflag);
10023 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10024 phba->sli.mbox_active = NULL;
10025 spin_unlock_irqrestore(&phba->hbalock, iflag);
10030 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
10031 * @phba: Pointer to HBA context object.
10032 * @mboxq: Pointer to mailbox object.
10033 * @flag: Flag indicating how the mailbox need to be processed.
10035 * This function is called by discovery code and HBA management code to submit
10036 * a mailbox command to firmware with SLI-4 interface spec.
10038 * Return codes the caller owns the mailbox command after the return of the
10042 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
10045 struct lpfc_sli *psli = &phba->sli;
10046 unsigned long iflags;
10049 /* dump from issue mailbox command if setup */
10050 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
10052 rc = lpfc_mbox_dev_check(phba);
10053 if (unlikely(rc)) {
10054 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10055 "(%d):2544 Mailbox command x%x (x%x/x%x) "
10056 "cannot issue Data: x%x x%x\n",
10057 mboxq->vport ? mboxq->vport->vpi : 0,
10058 mboxq->u.mb.mbxCommand,
10059 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
10060 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
10061 psli->sli_flag, flag);
10062 goto out_not_finished;
10065 /* Detect polling mode and jump to a handler */
10066 if (!phba->sli4_hba.intr_enable) {
10067 if (flag == MBX_POLL)
10068 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
10071 if (rc != MBX_SUCCESS)
10072 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
10073 "(%d):2541 Mailbox command x%x "
10074 "(x%x/x%x) failure: "
10075 "mqe_sta: x%x mcqe_sta: x%x/x%x "
10077 mboxq->vport ? mboxq->vport->vpi : 0,
10078 mboxq->u.mb.mbxCommand,
10079 lpfc_sli_config_mbox_subsys_get(phba,
10081 lpfc_sli_config_mbox_opcode_get(phba,
10083 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
10084 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
10085 bf_get(lpfc_mcqe_ext_status,
10087 psli->sli_flag, flag);
10089 } else if (flag == MBX_POLL) {
10090 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
10091 "(%d):2542 Try to issue mailbox command "
10092 "x%x (x%x/x%x) synchronously ahead of async "
10093 "mailbox command queue: x%x x%x\n",
10094 mboxq->vport ? mboxq->vport->vpi : 0,
10095 mboxq->u.mb.mbxCommand,
10096 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
10097 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
10098 psli->sli_flag, flag);
10099 /* Try to block the asynchronous mailbox posting */
10100 rc = lpfc_sli4_async_mbox_block(phba);
10102 /* Successfully blocked, now issue sync mbox cmd */
10103 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
10104 if (rc != MBX_SUCCESS)
10105 lpfc_printf_log(phba, KERN_WARNING,
10106 LOG_MBOX | LOG_SLI,
10107 "(%d):2597 Sync Mailbox command "
10108 "x%x (x%x/x%x) failure: "
10109 "mqe_sta: x%x mcqe_sta: x%x/x%x "
10111 mboxq->vport ? mboxq->vport->vpi : 0,
10112 mboxq->u.mb.mbxCommand,
10113 lpfc_sli_config_mbox_subsys_get(phba,
10115 lpfc_sli_config_mbox_opcode_get(phba,
10117 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
10118 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
10119 bf_get(lpfc_mcqe_ext_status,
10121 psli->sli_flag, flag);
10122 /* Unblock the async mailbox posting afterward */
10123 lpfc_sli4_async_mbox_unblock(phba);
10128 /* Now, interrupt mode asynchronous mailbox command */
10129 rc = lpfc_mbox_cmd_check(phba, mboxq);
10131 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10132 "(%d):2543 Mailbox command x%x (x%x/x%x) "
10133 "cannot issue Data: x%x x%x\n",
10134 mboxq->vport ? mboxq->vport->vpi : 0,
10135 mboxq->u.mb.mbxCommand,
10136 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
10137 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
10138 psli->sli_flag, flag);
10139 goto out_not_finished;
10142 /* Put the mailbox command to the driver internal FIFO */
10143 psli->slistat.mbox_busy++;
10144 spin_lock_irqsave(&phba->hbalock, iflags);
10145 lpfc_mbox_put(phba, mboxq);
10146 spin_unlock_irqrestore(&phba->hbalock, iflags);
10147 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
10148 "(%d):0354 Mbox cmd issue - Enqueue Data: "
10149 "x%x (x%x/x%x) x%x x%x x%x x%x\n",
10150 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
10151 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
10152 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
10153 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
10154 mboxq->u.mb.un.varUnregLogin.rpi,
10155 phba->pport->port_state,
10156 psli->sli_flag, MBX_NOWAIT);
10157 /* Wake up worker thread to transport mailbox command from head */
10158 lpfc_worker_wake_up(phba);
10163 return MBX_NOT_FINISHED;
10167 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
10168 * @phba: Pointer to HBA context object.
10170 * This function is called by worker thread to send a mailbox command to
10171 * SLI4 HBA firmware.
10175 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
10177 struct lpfc_sli *psli = &phba->sli;
10178 LPFC_MBOXQ_t *mboxq;
10179 int rc = MBX_SUCCESS;
10180 unsigned long iflags;
10181 struct lpfc_mqe *mqe;
10184 /* Check interrupt mode before post async mailbox command */
10185 if (unlikely(!phba->sli4_hba.intr_enable))
10186 return MBX_NOT_FINISHED;
10188 /* Check for mailbox command service token */
10189 spin_lock_irqsave(&phba->hbalock, iflags);
10190 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
10191 spin_unlock_irqrestore(&phba->hbalock, iflags);
10192 return MBX_NOT_FINISHED;
10194 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10195 spin_unlock_irqrestore(&phba->hbalock, iflags);
10196 return MBX_NOT_FINISHED;
10198 if (unlikely(phba->sli.mbox_active)) {
10199 spin_unlock_irqrestore(&phba->hbalock, iflags);
10200 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10201 "0384 There is pending active mailbox cmd\n");
10202 return MBX_NOT_FINISHED;
10204 /* Take the mailbox command service token */
10205 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
10207 /* Get the next mailbox command from head of queue */
10208 mboxq = lpfc_mbox_get(phba);
10210 /* If no more mailbox command waiting for post, we're done */
10212 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10213 spin_unlock_irqrestore(&phba->hbalock, iflags);
10214 return MBX_SUCCESS;
10216 phba->sli.mbox_active = mboxq;
10217 spin_unlock_irqrestore(&phba->hbalock, iflags);
10219 /* Check device readiness for posting mailbox command */
10220 rc = lpfc_mbox_dev_check(phba);
10222 /* Driver clean routine will clean up pending mailbox */
10223 goto out_not_finished;
10225 /* Prepare the mbox command to be posted */
10226 mqe = &mboxq->u.mqe;
10227 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
10229 /* Start timer for the mbox_tmo and log some mailbox post messages */
10230 mod_timer(&psli->mbox_tmo, (jiffies +
10231 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
10233 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
10234 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
10236 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
10237 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
10238 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
10239 phba->pport->port_state, psli->sli_flag);
10241 if (mbx_cmnd != MBX_HEARTBEAT) {
10242 if (mboxq->vport) {
10243 lpfc_debugfs_disc_trc(mboxq->vport,
10244 LPFC_DISC_TRC_MBOX_VPORT,
10245 "MBOX Send vport: cmd:x%x mb:x%x x%x",
10246 mbx_cmnd, mqe->un.mb_words[0],
10247 mqe->un.mb_words[1]);
10249 lpfc_debugfs_disc_trc(phba->pport,
10250 LPFC_DISC_TRC_MBOX,
10251 "MBOX Send: cmd:x%x mb:x%x x%x",
10252 mbx_cmnd, mqe->un.mb_words[0],
10253 mqe->un.mb_words[1]);
10256 psli->slistat.mbox_cmd++;
10258 /* Post the mailbox command to the port */
10259 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
10260 if (rc != MBX_SUCCESS) {
10261 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10262 "(%d):2533 Mailbox command x%x (x%x/x%x) "
10263 "cannot issue Data: x%x x%x\n",
10264 mboxq->vport ? mboxq->vport->vpi : 0,
10265 mboxq->u.mb.mbxCommand,
10266 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
10267 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
10268 psli->sli_flag, MBX_NOWAIT);
10269 goto out_not_finished;
10275 spin_lock_irqsave(&phba->hbalock, iflags);
10276 if (phba->sli.mbox_active) {
10277 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10278 __lpfc_mbox_cmpl_put(phba, mboxq);
10279 /* Release the token */
10280 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10281 phba->sli.mbox_active = NULL;
10283 spin_unlock_irqrestore(&phba->hbalock, iflags);
10285 return MBX_NOT_FINISHED;
10289 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
10290 * @phba: Pointer to HBA context object.
10291 * @pmbox: Pointer to mailbox object.
10292 * @flag: Flag indicating how the mailbox need to be processed.
10294 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
10295 * the API jump table function pointer from the lpfc_hba struct.
10297 * Return codes the caller owns the mailbox command after the return of the
10301 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
10303 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
10307 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
10308 * @phba: The hba struct for which this call is being executed.
10309 * @dev_grp: The HBA PCI-Device group number.
10311 * This routine sets up the mbox interface API function jump table in @phba
10313 * Returns: 0 - success, -ENODEV - failure.
10316 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
10320 case LPFC_PCI_DEV_LP:
10321 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
10322 phba->lpfc_sli_handle_slow_ring_event =
10323 lpfc_sli_handle_slow_ring_event_s3;
10324 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
10325 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
10326 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
10328 case LPFC_PCI_DEV_OC:
10329 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
10330 phba->lpfc_sli_handle_slow_ring_event =
10331 lpfc_sli_handle_slow_ring_event_s4;
10332 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
10333 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
10334 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
10337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10338 "1420 Invalid HBA PCI-device group: 0x%x\n",
10346 * __lpfc_sli_ringtx_put - Add an iocb to the txq
10347 * @phba: Pointer to HBA context object.
10348 * @pring: Pointer to driver SLI ring object.
10349 * @piocb: Pointer to address of newly added command iocb.
10351 * This function is called with hbalock held for SLI3 ports or
10352 * the ring lock held for SLI4 ports to add a command
10353 * iocb to the txq when SLI layer cannot submit the command iocb
10357 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10358 struct lpfc_iocbq *piocb)
10360 if (phba->sli_rev == LPFC_SLI_REV4)
10361 lockdep_assert_held(&pring->ring_lock);
10363 lockdep_assert_held(&phba->hbalock);
10364 /* Insert the caller's iocb in the txq tail for later processing. */
10365 list_add_tail(&piocb->list, &pring->txq);
10369 * lpfc_sli_next_iocb - Get the next iocb in the txq
10370 * @phba: Pointer to HBA context object.
10371 * @pring: Pointer to driver SLI ring object.
10372 * @piocb: Pointer to address of newly added command iocb.
10374 * This function is called with hbalock held before a new
10375 * iocb is submitted to the firmware. This function checks
10376 * txq to flush the iocbs in txq to Firmware before
10377 * submitting new iocbs to the Firmware.
10378 * If there are iocbs in the txq which need to be submitted
10379 * to firmware, lpfc_sli_next_iocb returns the first element
10380 * of the txq after dequeuing it from txq.
10381 * If there is no iocb in the txq then the function will return
10382 * *piocb and *piocb is set to NULL. Caller needs to check
10383 * *piocb to find if there are more commands in the txq.
10385 static struct lpfc_iocbq *
10386 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10387 struct lpfc_iocbq **piocb)
10389 struct lpfc_iocbq * nextiocb;
10391 lockdep_assert_held(&phba->hbalock);
10393 nextiocb = lpfc_sli_ringtx_get(phba, pring);
10403 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
10404 * @phba: Pointer to HBA context object.
10405 * @ring_number: SLI ring number to issue iocb on.
10406 * @piocb: Pointer to command iocb.
10407 * @flag: Flag indicating if this command can be put into txq.
10409 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
10410 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
10411 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
10412 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
10413 * this function allows only iocbs for posting buffers. This function finds
10414 * next available slot in the command ring and posts the command to the
10415 * available slot and writes the port attention register to request HBA start
10416 * processing new iocb. If there is no slot available in the ring and
10417 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
10418 * the function returns IOCB_BUSY.
10420 * This function is called with hbalock held. The function will return success
10421 * after it successfully submit the iocb to firmware or after adding to the
10425 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
10426 struct lpfc_iocbq *piocb, uint32_t flag)
10428 struct lpfc_iocbq *nextiocb;
10430 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
10432 lockdep_assert_held(&phba->hbalock);
10434 if (piocb->cmd_cmpl && (!piocb->vport) &&
10435 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
10436 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
10437 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10438 "1807 IOCB x%x failed. No vport\n",
10439 piocb->iocb.ulpCommand);
10445 /* If the PCI channel is in offline state, do not post iocbs. */
10446 if (unlikely(pci_channel_offline(phba->pcidev)))
10449 /* If HBA has a deferred error attention, fail the iocb. */
10450 if (unlikely(phba->hba_flag & DEFER_ERATT))
10454 * We should never get an IOCB if we are in a < LINK_DOWN state
10456 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10460 * Check to see if we are blocking IOCB processing because of a
10461 * outstanding event.
10463 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
10466 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
10468 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
10469 * can be issued if the link is not up.
10471 switch (piocb->iocb.ulpCommand) {
10472 case CMD_QUE_RING_BUF_CN:
10473 case CMD_QUE_RING_BUF64_CN:
10475 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
10476 * completion, cmd_cmpl MUST be 0.
10478 if (piocb->cmd_cmpl)
10479 piocb->cmd_cmpl = NULL;
10481 case CMD_CREATE_XRI_CR:
10482 case CMD_CLOSE_XRI_CN:
10483 case CMD_CLOSE_XRI_CX:
10490 * For FCP commands, we must be in a state where we can process link
10491 * attention events.
10493 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
10494 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
10498 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
10499 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
10500 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
10503 lpfc_sli_update_ring(phba, pring);
10505 lpfc_sli_update_full_ring(phba, pring);
10508 return IOCB_SUCCESS;
10513 pring->stats.iocb_cmd_delay++;
10517 if (!(flag & SLI_IOCB_RET_IOCB)) {
10518 __lpfc_sli_ringtx_put(phba, pring, piocb);
10519 return IOCB_SUCCESS;
10526 * __lpfc_sli_issue_fcp_io_s3 - SLI3 device for sending fcp io iocb
10527 * @phba: Pointer to HBA context object.
10528 * @ring_number: SLI ring number to issue wqe on.
10529 * @piocb: Pointer to command iocb.
10530 * @flag: Flag indicating if this command can be put into txq.
10532 * __lpfc_sli_issue_fcp_io_s3 is wrapper function to invoke lockless func to
10533 * send an iocb command to an HBA with SLI-3 interface spec.
10535 * This function takes the hbalock before invoking the lockless version.
10536 * The function will return success after it successfully submit the wqe to
10537 * firmware or after adding to the txq.
10540 __lpfc_sli_issue_fcp_io_s3(struct lpfc_hba *phba, uint32_t ring_number,
10541 struct lpfc_iocbq *piocb, uint32_t flag)
10543 unsigned long iflags;
10546 spin_lock_irqsave(&phba->hbalock, iflags);
10547 rc = __lpfc_sli_issue_iocb_s3(phba, ring_number, piocb, flag);
10548 spin_unlock_irqrestore(&phba->hbalock, iflags);
10554 * __lpfc_sli_issue_fcp_io_s4 - SLI4 device for sending fcp io wqe
10555 * @phba: Pointer to HBA context object.
10556 * @ring_number: SLI ring number to issue wqe on.
10557 * @piocb: Pointer to command iocb.
10558 * @flag: Flag indicating if this command can be put into txq.
10560 * __lpfc_sli_issue_fcp_io_s4 is used by other functions in the driver to issue
10561 * an wqe command to an HBA with SLI-4 interface spec.
10563 * This function is a lockless version. The function will return success
10564 * after it successfully submit the wqe to firmware or after adding to the
10568 __lpfc_sli_issue_fcp_io_s4(struct lpfc_hba *phba, uint32_t ring_number,
10569 struct lpfc_iocbq *piocb, uint32_t flag)
10571 struct lpfc_io_buf *lpfc_cmd = piocb->io_buf;
10573 lpfc_prep_embed_io(phba, lpfc_cmd);
10574 return lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, piocb);
10578 lpfc_prep_embed_io(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
10580 struct lpfc_iocbq *piocb = &lpfc_cmd->cur_iocbq;
10581 union lpfc_wqe128 *wqe = &lpfc_cmd->cur_iocbq.wqe;
10582 struct sli4_sge *sgl;
10584 /* 128 byte wqe support here */
10585 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
10587 if (phba->fcp_embed_io) {
10588 struct fcp_cmnd *fcp_cmnd;
10591 fcp_cmnd = lpfc_cmd->fcp_cmnd;
10593 /* Word 0-2 - FCP_CMND */
10594 wqe->generic.bde.tus.f.bdeFlags =
10595 BUFF_TYPE_BDE_IMMED;
10596 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
10597 wqe->generic.bde.addrHigh = 0;
10598 wqe->generic.bde.addrLow = 88; /* Word 22 */
10600 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
10601 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
10603 /* Word 22-29 FCP CMND Payload */
10604 ptr = &wqe->words[22];
10605 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
10607 /* Word 0-2 - Inline BDE */
10608 wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
10609 wqe->generic.bde.tus.f.bdeSize = sizeof(struct fcp_cmnd);
10610 wqe->generic.bde.addrHigh = sgl->addr_hi;
10611 wqe->generic.bde.addrLow = sgl->addr_lo;
10614 bf_set(wqe_dbde, &wqe->generic.wqe_com, 1);
10615 bf_set(wqe_wqes, &wqe->generic.wqe_com, 0);
10618 /* add the VMID tags as per switch response */
10619 if (unlikely(piocb->cmd_flag & LPFC_IO_VMID)) {
10620 if (phba->pport->vmid_flag & LPFC_VMID_TYPE_PRIO) {
10621 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
10622 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
10623 (piocb->vmid_tag.cs_ctl_vmid));
10624 } else if (phba->cfg_vmid_app_header) {
10625 bf_set(wqe_appid, &wqe->fcp_iwrite.wqe_com, 1);
10626 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
10627 wqe->words[31] = piocb->vmid_tag.app_id;
10633 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
10634 * @phba: Pointer to HBA context object.
10635 * @ring_number: SLI ring number to issue iocb on.
10636 * @piocb: Pointer to command iocb.
10637 * @flag: Flag indicating if this command can be put into txq.
10639 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
10640 * an iocb command to an HBA with SLI-4 interface spec.
10642 * This function is called with ringlock held. The function will return success
10643 * after it successfully submit the iocb to firmware or after adding to the
10647 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
10648 struct lpfc_iocbq *piocb, uint32_t flag)
10650 struct lpfc_sglq *sglq;
10651 union lpfc_wqe128 *wqe;
10652 struct lpfc_queue *wq;
10653 struct lpfc_sli_ring *pring;
10654 u32 ulp_command = get_job_cmnd(phba, piocb);
10657 if ((piocb->cmd_flag & LPFC_IO_FCP) ||
10658 (piocb->cmd_flag & LPFC_USE_FCPWQIDX)) {
10659 wq = phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq;
10661 wq = phba->sli4_hba.els_wq;
10664 /* Get corresponding ring */
10668 * The WQE can be either 64 or 128 bytes,
10671 lockdep_assert_held(&pring->ring_lock);
10673 if (piocb->sli4_xritag == NO_XRI) {
10674 if (ulp_command == CMD_ABORT_XRI_CX)
10677 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
10679 if (!(flag & SLI_IOCB_RET_IOCB)) {
10680 __lpfc_sli_ringtx_put(phba,
10683 return IOCB_SUCCESS;
10689 } else if (piocb->cmd_flag & LPFC_IO_FCP) {
10690 /* These IO's already have an XRI and a mapped sgl. */
10695 * This is a continuation of a commandi,(CX) so this
10696 * sglq is on the active list
10698 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
10704 piocb->sli4_lxritag = sglq->sli4_lxritag;
10705 piocb->sli4_xritag = sglq->sli4_xritag;
10707 /* ABTS sent by initiator to CT exchange, the
10708 * RX_ID field will be filled with the newly
10709 * allocated responder XRI.
10711 if (ulp_command == CMD_XMIT_BLS_RSP64_CX &&
10712 piocb->abort_bls == LPFC_ABTS_UNSOL_INT)
10713 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
10714 piocb->sli4_xritag);
10716 bf_set(wqe_xri_tag, &wqe->generic.wqe_com,
10717 piocb->sli4_xritag);
10719 if (lpfc_wqe_bpl2sgl(phba, piocb, sglq) == NO_XRI)
10723 if (lpfc_sli4_wq_put(wq, wqe))
10726 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
10732 * lpfc_sli_issue_fcp_io - Wrapper func for issuing fcp i/o
10734 * This routine wraps the actual fcp i/o function for issusing WQE for sli-4
10735 * or IOCB for sli-3 function.
10736 * pointer from the lpfc_hba struct.
10739 * IOCB_ERROR - Error
10740 * IOCB_SUCCESS - Success
10744 lpfc_sli_issue_fcp_io(struct lpfc_hba *phba, uint32_t ring_number,
10745 struct lpfc_iocbq *piocb, uint32_t flag)
10747 return phba->__lpfc_sli_issue_fcp_io(phba, ring_number, piocb, flag);
10751 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
10753 * This routine wraps the actual lockless version for issusing IOCB function
10754 * pointer from the lpfc_hba struct.
10757 * IOCB_ERROR - Error
10758 * IOCB_SUCCESS - Success
10762 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10763 struct lpfc_iocbq *piocb, uint32_t flag)
10765 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10769 __lpfc_sli_prep_els_req_rsp_s3(struct lpfc_iocbq *cmdiocbq,
10770 struct lpfc_vport *vport,
10771 struct lpfc_dmabuf *bmp, u16 cmd_size, u32 did,
10772 u32 elscmd, u8 tmo, u8 expect_rsp)
10774 struct lpfc_hba *phba = vport->phba;
10777 cmd = &cmdiocbq->iocb;
10778 memset(cmd, 0, sizeof(*cmd));
10780 cmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
10781 cmd->un.elsreq64.bdl.addrLow = putPaddrLow(bmp->phys);
10782 cmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
10785 cmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
10786 cmd->un.elsreq64.remoteID = did; /* DID */
10787 cmd->ulpCommand = CMD_ELS_REQUEST64_CR;
10788 cmd->ulpTimeout = tmo;
10790 cmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64);
10791 cmd->un.genreq64.xmit_els_remoteID = did; /* DID */
10792 cmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
10793 cmd->ulpPU = PARM_NPIV_DID;
10795 cmd->ulpBdeCount = 1;
10797 cmd->ulpClass = CLASS3;
10799 /* If we have NPIV enabled, we want to send ELS traffic by VPI. */
10800 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
10802 cmd->un.elsreq64.myID = vport->fc_myDID;
10804 /* For ELS_REQUEST64_CR, use the VPI by default */
10805 cmd->ulpContext = phba->vpi_ids[vport->vpi];
10809 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
10810 if (elscmd == ELS_CMD_ECHO)
10811 cmd->ulpCt_l = 0; /* context = invalid RPI */
10813 cmd->ulpCt_l = 1; /* context = VPI */
10818 __lpfc_sli_prep_els_req_rsp_s4(struct lpfc_iocbq *cmdiocbq,
10819 struct lpfc_vport *vport,
10820 struct lpfc_dmabuf *bmp, u16 cmd_size, u32 did,
10821 u32 elscmd, u8 tmo, u8 expect_rsp)
10823 struct lpfc_hba *phba = vport->phba;
10824 union lpfc_wqe128 *wqe;
10825 struct ulp_bde64_le *bde;
10828 wqe = &cmdiocbq->wqe;
10829 memset(wqe, 0, sizeof(*wqe));
10831 /* Word 0 - 2 BDE */
10832 bde = (struct ulp_bde64_le *)&wqe->generic.bde;
10833 bde->addr_low = cpu_to_le32(putPaddrLow(bmp->phys));
10834 bde->addr_high = cpu_to_le32(putPaddrHigh(bmp->phys));
10835 bde->type_size = cpu_to_le32(cmd_size);
10836 bde->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64);
10839 bf_set(wqe_cmnd, &wqe->els_req.wqe_com, CMD_ELS_REQUEST64_WQE);
10841 /* Transfer length */
10842 wqe->els_req.payload_len = cmd_size;
10843 wqe->els_req.max_response_payload_len = FCELSSIZE;
10846 bf_set(wqe_els_did, &wqe->els_req.wqe_dest, did);
10848 /* Word 11 - ELS_ID */
10850 case ELS_CMD_PLOGI:
10851 els_id = LPFC_ELS_ID_PLOGI;
10853 case ELS_CMD_FLOGI:
10854 els_id = LPFC_ELS_ID_FLOGI;
10857 els_id = LPFC_ELS_ID_LOGO;
10859 case ELS_CMD_FDISC:
10860 if (!vport->fc_myDID) {
10861 els_id = LPFC_ELS_ID_FDISC;
10866 els_id = LPFC_ELS_ID_DEFAULT;
10870 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
10873 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest, did);
10875 /* Transfer length */
10876 wqe->xmit_els_rsp.response_payload_len = cmd_size;
10878 bf_set(wqe_cmnd, &wqe->xmit_els_rsp.wqe_com,
10879 CMD_XMIT_ELS_RSP64_WQE);
10882 bf_set(wqe_tmo, &wqe->generic.wqe_com, tmo);
10883 bf_set(wqe_reqtag, &wqe->generic.wqe_com, cmdiocbq->iotag);
10884 bf_set(wqe_class, &wqe->generic.wqe_com, CLASS3);
10886 /* If we have NPIV enabled, we want to send ELS traffic by VPI.
10887 * For SLI4, since the driver controls VPIs we also want to include
10888 * all ELS pt2pt protocol traffic as well.
10890 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) ||
10891 (vport->fc_flag & FC_PT2PT)) {
10893 bf_set(els_req64_sid, &wqe->els_req, vport->fc_myDID);
10895 /* For ELS_REQUEST64_WQE, use the VPI by default */
10896 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
10897 phba->vpi_ids[vport->vpi]);
10900 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
10901 if (elscmd == ELS_CMD_ECHO)
10902 bf_set(wqe_ct, &wqe->generic.wqe_com, 0);
10904 bf_set(wqe_ct, &wqe->generic.wqe_com, 1);
10909 lpfc_sli_prep_els_req_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq,
10910 struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
10911 u16 cmd_size, u32 did, u32 elscmd, u8 tmo,
10914 phba->__lpfc_sli_prep_els_req_rsp(cmdiocbq, vport, bmp, cmd_size, did,
10915 elscmd, tmo, expect_rsp);
10919 __lpfc_sli_prep_gen_req_s3(struct lpfc_iocbq *cmdiocbq, struct lpfc_dmabuf *bmp,
10920 u16 rpi, u32 num_entry, u8 tmo)
10924 cmd = &cmdiocbq->iocb;
10925 memset(cmd, 0, sizeof(*cmd));
10927 cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
10928 cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
10929 cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
10930 cmd->un.genreq64.bdl.bdeSize = num_entry * sizeof(struct ulp_bde64);
10932 cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
10933 cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;
10934 cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
10936 cmd->ulpContext = rpi;
10937 cmd->ulpClass = CLASS3;
10938 cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
10939 cmd->ulpBdeCount = 1;
10941 cmd->ulpOwner = OWN_CHIP;
10942 cmd->ulpTimeout = tmo;
10946 __lpfc_sli_prep_gen_req_s4(struct lpfc_iocbq *cmdiocbq, struct lpfc_dmabuf *bmp,
10947 u16 rpi, u32 num_entry, u8 tmo)
10949 union lpfc_wqe128 *cmdwqe;
10950 struct ulp_bde64_le *bde, *bpl;
10951 u32 xmit_len = 0, total_len = 0, size, type, i;
10953 cmdwqe = &cmdiocbq->wqe;
10954 memset(cmdwqe, 0, sizeof(*cmdwqe));
10956 /* Calculate total_len and xmit_len */
10957 bpl = (struct ulp_bde64_le *)bmp->virt;
10958 for (i = 0; i < num_entry; i++) {
10959 size = le32_to_cpu(bpl[i].type_size) & ULP_BDE64_SIZE_MASK;
10962 for (i = 0; i < num_entry; i++) {
10963 size = le32_to_cpu(bpl[i].type_size) & ULP_BDE64_SIZE_MASK;
10964 type = le32_to_cpu(bpl[i].type_size) & ULP_BDE64_TYPE_MASK;
10965 if (type != ULP_BDE64_TYPE_BDE_64)
10971 bde = (struct ulp_bde64_le *)&cmdwqe->generic.bde;
10972 bde->addr_low = bpl->addr_low;
10973 bde->addr_high = bpl->addr_high;
10974 bde->type_size = cpu_to_le32(xmit_len);
10975 bde->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64);
10978 cmdwqe->gen_req.request_payload_len = xmit_len;
10981 bf_set(wqe_type, &cmdwqe->gen_req.wge_ctl, FC_TYPE_CT);
10982 bf_set(wqe_rctl, &cmdwqe->gen_req.wge_ctl, FC_RCTL_DD_UNSOL_CTL);
10983 bf_set(wqe_si, &cmdwqe->gen_req.wge_ctl, 1);
10984 bf_set(wqe_la, &cmdwqe->gen_req.wge_ctl, 1);
10987 bf_set(wqe_ctxt_tag, &cmdwqe->gen_req.wqe_com, rpi);
10990 bf_set(wqe_tmo, &cmdwqe->gen_req.wqe_com, tmo);
10991 bf_set(wqe_class, &cmdwqe->gen_req.wqe_com, CLASS3);
10992 bf_set(wqe_cmnd, &cmdwqe->gen_req.wqe_com, CMD_GEN_REQUEST64_CR);
10993 bf_set(wqe_ct, &cmdwqe->gen_req.wqe_com, SLI4_CT_RPI);
10996 cmdwqe->gen_req.max_response_payload_len = total_len - xmit_len;
11000 lpfc_sli_prep_gen_req(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq,
11001 struct lpfc_dmabuf *bmp, u16 rpi, u32 num_entry, u8 tmo)
11003 phba->__lpfc_sli_prep_gen_req(cmdiocbq, bmp, rpi, num_entry, tmo);
11007 __lpfc_sli_prep_xmit_seq64_s3(struct lpfc_iocbq *cmdiocbq,
11008 struct lpfc_dmabuf *bmp, u16 rpi, u16 ox_id,
11009 u32 num_entry, u8 rctl, u8 last_seq, u8 cr_cx_cmd)
11013 icmd = &cmdiocbq->iocb;
11014 memset(icmd, 0, sizeof(*icmd));
11016 icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
11017 icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys);
11018 icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
11019 icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64));
11020 icmd->un.xseq64.w5.hcsw.Fctl = LA;
11022 icmd->un.xseq64.w5.hcsw.Fctl |= LS;
11023 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
11024 icmd->un.xseq64.w5.hcsw.Rctl = rctl;
11025 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
11027 icmd->ulpBdeCount = 1;
11029 icmd->ulpClass = CLASS3;
11031 switch (cr_cx_cmd) {
11032 case CMD_XMIT_SEQUENCE64_CR:
11033 icmd->ulpContext = rpi;
11034 icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR;
11036 case CMD_XMIT_SEQUENCE64_CX:
11037 icmd->ulpContext = ox_id;
11038 icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
11046 __lpfc_sli_prep_xmit_seq64_s4(struct lpfc_iocbq *cmdiocbq,
11047 struct lpfc_dmabuf *bmp, u16 rpi, u16 ox_id,
11048 u32 full_size, u8 rctl, u8 last_seq, u8 cr_cx_cmd)
11050 union lpfc_wqe128 *wqe;
11051 struct ulp_bde64 *bpl;
11053 wqe = &cmdiocbq->wqe;
11054 memset(wqe, 0, sizeof(*wqe));
11057 bpl = (struct ulp_bde64 *)bmp->virt;
11058 wqe->xmit_sequence.bde.addrHigh = bpl->addrHigh;
11059 wqe->xmit_sequence.bde.addrLow = bpl->addrLow;
11060 wqe->xmit_sequence.bde.tus.w = bpl->tus.w;
11063 bf_set(wqe_ls, &wqe->xmit_sequence.wge_ctl, last_seq);
11064 bf_set(wqe_la, &wqe->xmit_sequence.wge_ctl, 1);
11065 bf_set(wqe_dfctl, &wqe->xmit_sequence.wge_ctl, 0);
11066 bf_set(wqe_rctl, &wqe->xmit_sequence.wge_ctl, rctl);
11067 bf_set(wqe_type, &wqe->xmit_sequence.wge_ctl, FC_TYPE_CT);
11070 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com, rpi);
11072 bf_set(wqe_cmnd, &wqe->xmit_sequence.wqe_com,
11073 CMD_XMIT_SEQUENCE64_WQE);
11076 bf_set(wqe_class, &wqe->xmit_sequence.wqe_com, CLASS3);
11079 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com, ox_id);
11082 if (cmdiocbq->cmd_flag & (LPFC_IO_LIBDFC | LPFC_IO_LOOPBACK))
11083 wqe->xmit_sequence.xmit_len = full_size;
11085 wqe->xmit_sequence.xmit_len =
11086 wqe->xmit_sequence.bde.tus.f.bdeSize;
11090 lpfc_sli_prep_xmit_seq64(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq,
11091 struct lpfc_dmabuf *bmp, u16 rpi, u16 ox_id,
11092 u32 num_entry, u8 rctl, u8 last_seq, u8 cr_cx_cmd)
11094 phba->__lpfc_sli_prep_xmit_seq64(cmdiocbq, bmp, rpi, ox_id, num_entry,
11095 rctl, last_seq, cr_cx_cmd);
11099 __lpfc_sli_prep_abort_xri_s3(struct lpfc_iocbq *cmdiocbq, u16 ulp_context,
11100 u16 iotag, u8 ulp_class, u16 cqid, bool ia,
11103 IOCB_t *icmd = NULL;
11105 icmd = &cmdiocbq->iocb;
11106 memset(icmd, 0, sizeof(*icmd));
11109 icmd->un.acxri.abortContextTag = ulp_context;
11110 icmd->un.acxri.abortIoTag = iotag;
11114 icmd->ulpCommand = CMD_CLOSE_XRI_CN;
11117 icmd->un.acxri.abortType = ABORT_TYPE_ABTS;
11120 icmd->ulpClass = ulp_class;
11121 icmd->ulpCommand = CMD_ABORT_XRI_CN;
11129 __lpfc_sli_prep_abort_xri_s4(struct lpfc_iocbq *cmdiocbq, u16 ulp_context,
11130 u16 iotag, u8 ulp_class, u16 cqid, bool ia,
11133 union lpfc_wqe128 *wqe;
11135 wqe = &cmdiocbq->wqe;
11136 memset(wqe, 0, sizeof(*wqe));
11139 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
11141 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
11143 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
11146 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_WQE);
11149 wqe->abort_cmd.wqe_com.abort_tag = ulp_context;
11152 bf_set(wqe_reqtag, &wqe->abort_cmd.wqe_com, iotag);
11155 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
11159 bf_set(wqe_wqec, &wqe->abort_cmd.wqe_com, 1);
11160 bf_set(wqe_cqid, &wqe->abort_cmd.wqe_com, cqid);
11161 bf_set(wqe_cmd_type, &wqe->abort_cmd.wqe_com, OTHER_COMMAND);
11165 lpfc_sli_prep_abort_xri(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq,
11166 u16 ulp_context, u16 iotag, u8 ulp_class, u16 cqid,
11167 bool ia, bool wqec)
11169 phba->__lpfc_sli_prep_abort_xri(cmdiocbq, ulp_context, iotag, ulp_class,
11174 * lpfc_sli_api_table_setup - Set up sli api function jump table
11175 * @phba: The hba struct for which this call is being executed.
11176 * @dev_grp: The HBA PCI-Device group number.
11178 * This routine sets up the SLI interface API function jump table in @phba
11180 * Returns: 0 - success, -ENODEV - failure.
11183 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
11187 case LPFC_PCI_DEV_LP:
11188 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
11189 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
11190 phba->__lpfc_sli_issue_fcp_io = __lpfc_sli_issue_fcp_io_s3;
11191 phba->__lpfc_sli_prep_els_req_rsp = __lpfc_sli_prep_els_req_rsp_s3;
11192 phba->__lpfc_sli_prep_gen_req = __lpfc_sli_prep_gen_req_s3;
11193 phba->__lpfc_sli_prep_xmit_seq64 = __lpfc_sli_prep_xmit_seq64_s3;
11194 phba->__lpfc_sli_prep_abort_xri = __lpfc_sli_prep_abort_xri_s3;
11196 case LPFC_PCI_DEV_OC:
11197 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
11198 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
11199 phba->__lpfc_sli_issue_fcp_io = __lpfc_sli_issue_fcp_io_s4;
11200 phba->__lpfc_sli_prep_els_req_rsp = __lpfc_sli_prep_els_req_rsp_s4;
11201 phba->__lpfc_sli_prep_gen_req = __lpfc_sli_prep_gen_req_s4;
11202 phba->__lpfc_sli_prep_xmit_seq64 = __lpfc_sli_prep_xmit_seq64_s4;
11203 phba->__lpfc_sli_prep_abort_xri = __lpfc_sli_prep_abort_xri_s4;
11206 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11207 "1419 Invalid HBA PCI-device group: 0x%x\n",
11215 * lpfc_sli4_calc_ring - Calculates which ring to use
11216 * @phba: Pointer to HBA context object.
11217 * @piocb: Pointer to command iocb.
11219 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
11220 * hba_wqidx, thus we need to calculate the corresponding ring.
11221 * Since ABORTS must go on the same WQ of the command they are
11222 * aborting, we use command's hba_wqidx.
11224 struct lpfc_sli_ring *
11225 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
11227 struct lpfc_io_buf *lpfc_cmd;
11229 if (piocb->cmd_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
11230 if (unlikely(!phba->sli4_hba.hdwq))
11233 * for abort iocb hba_wqidx should already
11234 * be setup based on what work queue we used.
11236 if (!(piocb->cmd_flag & LPFC_USE_FCPWQIDX)) {
11237 lpfc_cmd = piocb->io_buf;
11238 piocb->hba_wqidx = lpfc_cmd->hdwq_no;
11240 return phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq->pring;
11242 if (unlikely(!phba->sli4_hba.els_wq))
11244 piocb->hba_wqidx = 0;
11245 return phba->sli4_hba.els_wq->pring;
11249 inline void lpfc_sli4_poll_eq(struct lpfc_queue *eq)
11251 struct lpfc_hba *phba = eq->phba;
11254 * Unlocking an irq is one of the entry point to check
11255 * for re-schedule, but we are good for io submission
11256 * path as midlayer does a get_cpu to glue us in. Flush
11257 * out the invalidate queue so we can see the updated
11262 if (READ_ONCE(eq->mode) == LPFC_EQ_POLL)
11263 /* We will not likely get the completion for the caller
11264 * during this iteration but i guess that's fine.
11265 * Future io's coming on this eq should be able to
11266 * pick it up. As for the case of single io's, they
11267 * will be handled through a sched from polling timer
11268 * function which is currently triggered every 1msec.
11270 lpfc_sli4_process_eq(phba, eq, LPFC_QUEUE_NOARM,
11275 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
11276 * @phba: Pointer to HBA context object.
11277 * @ring_number: Ring number
11278 * @piocb: Pointer to command iocb.
11279 * @flag: Flag indicating if this command can be put into txq.
11281 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
11282 * function. This function gets the hbalock and calls
11283 * __lpfc_sli_issue_iocb function and will return the error returned
11284 * by __lpfc_sli_issue_iocb function. This wrapper is used by
11285 * functions which do not hold hbalock.
11288 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
11289 struct lpfc_iocbq *piocb, uint32_t flag)
11291 struct lpfc_sli_ring *pring;
11292 struct lpfc_queue *eq;
11293 unsigned long iflags;
11296 /* If the PCI channel is in offline state, do not post iocbs. */
11297 if (unlikely(pci_channel_offline(phba->pcidev)))
11300 if (phba->sli_rev == LPFC_SLI_REV4) {
11301 lpfc_sli_prep_wqe(phba, piocb);
11303 eq = phba->sli4_hba.hdwq[piocb->hba_wqidx].hba_eq;
11305 pring = lpfc_sli4_calc_ring(phba, piocb);
11306 if (unlikely(pring == NULL))
11309 spin_lock_irqsave(&pring->ring_lock, iflags);
11310 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
11311 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11313 lpfc_sli4_poll_eq(eq);
11315 /* For now, SLI2/3 will still use hbalock */
11316 spin_lock_irqsave(&phba->hbalock, iflags);
11317 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
11318 spin_unlock_irqrestore(&phba->hbalock, iflags);
11324 * lpfc_extra_ring_setup - Extra ring setup function
11325 * @phba: Pointer to HBA context object.
11327 * This function is called while driver attaches with the
11328 * HBA to setup the extra ring. The extra ring is used
11329 * only when driver needs to support target mode functionality
11330 * or IP over FC functionalities.
11332 * This function is called with no lock held. SLI3 only.
11335 lpfc_extra_ring_setup( struct lpfc_hba *phba)
11337 struct lpfc_sli *psli;
11338 struct lpfc_sli_ring *pring;
11342 /* Adjust cmd/rsp ring iocb entries more evenly */
11344 /* Take some away from the FCP ring */
11345 pring = &psli->sli3_ring[LPFC_FCP_RING];
11346 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
11347 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
11348 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
11349 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
11351 /* and give them to the extra ring */
11352 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
11354 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
11355 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
11356 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
11357 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
11359 /* Setup default profile for this ring */
11360 pring->iotag_max = 4096;
11361 pring->num_mask = 1;
11362 pring->prt[0].profile = 0; /* Mask 0 */
11363 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
11364 pring->prt[0].type = phba->cfg_multi_ring_type;
11365 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
11370 lpfc_sli_post_recovery_event(struct lpfc_hba *phba,
11371 struct lpfc_nodelist *ndlp)
11373 unsigned long iflags;
11374 struct lpfc_work_evt *evtp = &ndlp->recovery_evt;
11376 spin_lock_irqsave(&phba->hbalock, iflags);
11377 if (!list_empty(&evtp->evt_listp)) {
11378 spin_unlock_irqrestore(&phba->hbalock, iflags);
11382 /* Incrementing the reference count until the queued work is done. */
11383 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
11384 if (!evtp->evt_arg1) {
11385 spin_unlock_irqrestore(&phba->hbalock, iflags);
11388 evtp->evt = LPFC_EVT_RECOVER_PORT;
11389 list_add_tail(&evtp->evt_listp, &phba->work_list);
11390 spin_unlock_irqrestore(&phba->hbalock, iflags);
11392 lpfc_worker_wake_up(phba);
11395 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
11396 * @phba: Pointer to HBA context object.
11397 * @iocbq: Pointer to iocb object.
11399 * The async_event handler calls this routine when it receives
11400 * an ASYNC_STATUS_CN event from the port. The port generates
11401 * this event when an Abort Sequence request to an rport fails
11402 * twice in succession. The abort could be originated by the
11403 * driver or by the port. The ABTS could have been for an ELS
11404 * or FCP IO. The port only generates this event when an ABTS
11405 * fails to complete after one retry.
11408 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
11409 struct lpfc_iocbq *iocbq)
11411 struct lpfc_nodelist *ndlp = NULL;
11412 uint16_t rpi = 0, vpi = 0;
11413 struct lpfc_vport *vport = NULL;
11415 /* The rpi in the ulpContext is vport-sensitive. */
11416 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
11417 rpi = iocbq->iocb.ulpContext;
11419 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11420 "3092 Port generated ABTS async event "
11421 "on vpi %d rpi %d status 0x%x\n",
11422 vpi, rpi, iocbq->iocb.ulpStatus);
11424 vport = lpfc_find_vport_by_vpid(phba, vpi);
11427 ndlp = lpfc_findnode_rpi(vport, rpi);
11431 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
11432 lpfc_sli_abts_recover_port(vport, ndlp);
11436 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11437 "3095 Event Context not found, no "
11438 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
11439 vpi, rpi, iocbq->iocb.ulpStatus,
11440 iocbq->iocb.ulpContext);
11443 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
11444 * @phba: pointer to HBA context object.
11445 * @ndlp: nodelist pointer for the impacted rport.
11446 * @axri: pointer to the wcqe containing the failed exchange.
11448 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
11449 * port. The port generates this event when an abort exchange request to an
11450 * rport fails twice in succession with no reply. The abort could be originated
11451 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
11454 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
11455 struct lpfc_nodelist *ndlp,
11456 struct sli4_wcqe_xri_aborted *axri)
11458 uint32_t ext_status = 0;
11461 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11462 "3115 Node Context not found, driver "
11463 "ignoring abts err event\n");
11467 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11468 "3116 Port generated FCP XRI ABORT event on "
11469 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
11470 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
11471 bf_get(lpfc_wcqe_xa_xri, axri),
11472 bf_get(lpfc_wcqe_xa_status, axri),
11476 * Catch the ABTS protocol failure case. Older OCe FW releases returned
11477 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
11478 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
11480 ext_status = axri->parameter & IOERR_PARAM_MASK;
11481 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
11482 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
11483 lpfc_sli_post_recovery_event(phba, ndlp);
11487 * lpfc_sli_async_event_handler - ASYNC iocb handler function
11488 * @phba: Pointer to HBA context object.
11489 * @pring: Pointer to driver SLI ring object.
11490 * @iocbq: Pointer to iocb object.
11492 * This function is called by the slow ring event handler
11493 * function when there is an ASYNC event iocb in the ring.
11494 * This function is called with no lock held.
11495 * Currently this function handles only temperature related
11496 * ASYNC events. The function decodes the temperature sensor
11497 * event message and posts events for the management applications.
11500 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
11501 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
11505 struct temp_event temp_event_data;
11506 struct Scsi_Host *shost;
11509 icmd = &iocbq->iocb;
11510 evt_code = icmd->un.asyncstat.evt_code;
11512 switch (evt_code) {
11513 case ASYNC_TEMP_WARN:
11514 case ASYNC_TEMP_SAFE:
11515 temp_event_data.data = (uint32_t) icmd->ulpContext;
11516 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
11517 if (evt_code == ASYNC_TEMP_WARN) {
11518 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
11519 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11520 "0347 Adapter is very hot, please take "
11521 "corrective action. temperature : %d Celsius\n",
11522 (uint32_t) icmd->ulpContext);
11524 temp_event_data.event_code = LPFC_NORMAL_TEMP;
11525 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11526 "0340 Adapter temperature is OK now. "
11527 "temperature : %d Celsius\n",
11528 (uint32_t) icmd->ulpContext);
11531 /* Send temperature change event to applications */
11532 shost = lpfc_shost_from_vport(phba->pport);
11533 fc_host_post_vendor_event(shost, fc_get_event_number(),
11534 sizeof(temp_event_data), (char *) &temp_event_data,
11535 LPFC_NL_VENDOR_ID);
11537 case ASYNC_STATUS_CN:
11538 lpfc_sli_abts_err_handler(phba, iocbq);
11541 iocb_w = (uint32_t *) icmd;
11542 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11543 "0346 Ring %d handler: unexpected ASYNC_STATUS"
11545 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
11546 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
11547 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
11548 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
11549 pring->ringno, icmd->un.asyncstat.evt_code,
11550 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
11551 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
11552 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
11553 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
11561 * lpfc_sli4_setup - SLI ring setup function
11562 * @phba: Pointer to HBA context object.
11564 * lpfc_sli_setup sets up rings of the SLI interface with
11565 * number of iocbs per ring and iotags. This function is
11566 * called while driver attach to the HBA and before the
11567 * interrupts are enabled. So there is no need for locking.
11569 * This function always returns 0.
11572 lpfc_sli4_setup(struct lpfc_hba *phba)
11574 struct lpfc_sli_ring *pring;
11576 pring = phba->sli4_hba.els_wq->pring;
11577 pring->num_mask = LPFC_MAX_RING_MASK;
11578 pring->prt[0].profile = 0; /* Mask 0 */
11579 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
11580 pring->prt[0].type = FC_TYPE_ELS;
11581 pring->prt[0].lpfc_sli_rcv_unsol_event =
11582 lpfc_els_unsol_event;
11583 pring->prt[1].profile = 0; /* Mask 1 */
11584 pring->prt[1].rctl = FC_RCTL_ELS_REP;
11585 pring->prt[1].type = FC_TYPE_ELS;
11586 pring->prt[1].lpfc_sli_rcv_unsol_event =
11587 lpfc_els_unsol_event;
11588 pring->prt[2].profile = 0; /* Mask 2 */
11589 /* NameServer Inquiry */
11590 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
11592 pring->prt[2].type = FC_TYPE_CT;
11593 pring->prt[2].lpfc_sli_rcv_unsol_event =
11594 lpfc_ct_unsol_event;
11595 pring->prt[3].profile = 0; /* Mask 3 */
11596 /* NameServer response */
11597 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
11599 pring->prt[3].type = FC_TYPE_CT;
11600 pring->prt[3].lpfc_sli_rcv_unsol_event =
11601 lpfc_ct_unsol_event;
11606 * lpfc_sli_setup - SLI ring setup function
11607 * @phba: Pointer to HBA context object.
11609 * lpfc_sli_setup sets up rings of the SLI interface with
11610 * number of iocbs per ring and iotags. This function is
11611 * called while driver attach to the HBA and before the
11612 * interrupts are enabled. So there is no need for locking.
11614 * This function always returns 0. SLI3 only.
11617 lpfc_sli_setup(struct lpfc_hba *phba)
11619 int i, totiocbsize = 0;
11620 struct lpfc_sli *psli = &phba->sli;
11621 struct lpfc_sli_ring *pring;
11623 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
11624 psli->sli_flag = 0;
11626 psli->iocbq_lookup = NULL;
11627 psli->iocbq_lookup_len = 0;
11628 psli->last_iotag = 0;
11630 for (i = 0; i < psli->num_rings; i++) {
11631 pring = &psli->sli3_ring[i];
11633 case LPFC_FCP_RING: /* ring 0 - FCP */
11634 /* numCiocb and numRiocb are used in config_port */
11635 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
11636 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
11637 pring->sli.sli3.numCiocb +=
11638 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
11639 pring->sli.sli3.numRiocb +=
11640 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
11641 pring->sli.sli3.numCiocb +=
11642 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
11643 pring->sli.sli3.numRiocb +=
11644 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
11645 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
11646 SLI3_IOCB_CMD_SIZE :
11647 SLI2_IOCB_CMD_SIZE;
11648 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
11649 SLI3_IOCB_RSP_SIZE :
11650 SLI2_IOCB_RSP_SIZE;
11651 pring->iotag_ctr = 0;
11653 (phba->cfg_hba_queue_depth * 2);
11654 pring->fast_iotag = pring->iotag_max;
11655 pring->num_mask = 0;
11657 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
11658 /* numCiocb and numRiocb are used in config_port */
11659 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
11660 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
11661 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
11662 SLI3_IOCB_CMD_SIZE :
11663 SLI2_IOCB_CMD_SIZE;
11664 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
11665 SLI3_IOCB_RSP_SIZE :
11666 SLI2_IOCB_RSP_SIZE;
11667 pring->iotag_max = phba->cfg_hba_queue_depth;
11668 pring->num_mask = 0;
11670 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
11671 /* numCiocb and numRiocb are used in config_port */
11672 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
11673 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
11674 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
11675 SLI3_IOCB_CMD_SIZE :
11676 SLI2_IOCB_CMD_SIZE;
11677 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
11678 SLI3_IOCB_RSP_SIZE :
11679 SLI2_IOCB_RSP_SIZE;
11680 pring->fast_iotag = 0;
11681 pring->iotag_ctr = 0;
11682 pring->iotag_max = 4096;
11683 pring->lpfc_sli_rcv_async_status =
11684 lpfc_sli_async_event_handler;
11685 pring->num_mask = LPFC_MAX_RING_MASK;
11686 pring->prt[0].profile = 0; /* Mask 0 */
11687 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
11688 pring->prt[0].type = FC_TYPE_ELS;
11689 pring->prt[0].lpfc_sli_rcv_unsol_event =
11690 lpfc_els_unsol_event;
11691 pring->prt[1].profile = 0; /* Mask 1 */
11692 pring->prt[1].rctl = FC_RCTL_ELS_REP;
11693 pring->prt[1].type = FC_TYPE_ELS;
11694 pring->prt[1].lpfc_sli_rcv_unsol_event =
11695 lpfc_els_unsol_event;
11696 pring->prt[2].profile = 0; /* Mask 2 */
11697 /* NameServer Inquiry */
11698 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
11700 pring->prt[2].type = FC_TYPE_CT;
11701 pring->prt[2].lpfc_sli_rcv_unsol_event =
11702 lpfc_ct_unsol_event;
11703 pring->prt[3].profile = 0; /* Mask 3 */
11704 /* NameServer response */
11705 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
11707 pring->prt[3].type = FC_TYPE_CT;
11708 pring->prt[3].lpfc_sli_rcv_unsol_event =
11709 lpfc_ct_unsol_event;
11712 totiocbsize += (pring->sli.sli3.numCiocb *
11713 pring->sli.sli3.sizeCiocb) +
11714 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
11716 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
11717 /* Too many cmd / rsp ring entries in SLI2 SLIM */
11718 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
11719 "SLI2 SLIM Data: x%x x%lx\n",
11720 phba->brd_no, totiocbsize,
11721 (unsigned long) MAX_SLIM_IOCB_SIZE);
11723 if (phba->cfg_multi_ring_support == 2)
11724 lpfc_extra_ring_setup(phba);
11730 * lpfc_sli4_queue_init - Queue initialization function
11731 * @phba: Pointer to HBA context object.
11733 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
11734 * ring. This function also initializes ring indices of each ring.
11735 * This function is called during the initialization of the SLI
11736 * interface of an HBA.
11737 * This function is called with no lock held and always returns
11741 lpfc_sli4_queue_init(struct lpfc_hba *phba)
11743 struct lpfc_sli *psli;
11744 struct lpfc_sli_ring *pring;
11748 spin_lock_irq(&phba->hbalock);
11749 INIT_LIST_HEAD(&psli->mboxq);
11750 INIT_LIST_HEAD(&psli->mboxq_cmpl);
11751 /* Initialize list headers for txq and txcmplq as double linked lists */
11752 for (i = 0; i < phba->cfg_hdw_queue; i++) {
11753 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
11755 pring->ringno = LPFC_FCP_RING;
11756 pring->txcmplq_cnt = 0;
11757 INIT_LIST_HEAD(&pring->txq);
11758 INIT_LIST_HEAD(&pring->txcmplq);
11759 INIT_LIST_HEAD(&pring->iocb_continueq);
11760 spin_lock_init(&pring->ring_lock);
11762 pring = phba->sli4_hba.els_wq->pring;
11764 pring->ringno = LPFC_ELS_RING;
11765 pring->txcmplq_cnt = 0;
11766 INIT_LIST_HEAD(&pring->txq);
11767 INIT_LIST_HEAD(&pring->txcmplq);
11768 INIT_LIST_HEAD(&pring->iocb_continueq);
11769 spin_lock_init(&pring->ring_lock);
11771 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11772 pring = phba->sli4_hba.nvmels_wq->pring;
11774 pring->ringno = LPFC_ELS_RING;
11775 pring->txcmplq_cnt = 0;
11776 INIT_LIST_HEAD(&pring->txq);
11777 INIT_LIST_HEAD(&pring->txcmplq);
11778 INIT_LIST_HEAD(&pring->iocb_continueq);
11779 spin_lock_init(&pring->ring_lock);
11782 spin_unlock_irq(&phba->hbalock);
11786 * lpfc_sli_queue_init - Queue initialization function
11787 * @phba: Pointer to HBA context object.
11789 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
11790 * ring. This function also initializes ring indices of each ring.
11791 * This function is called during the initialization of the SLI
11792 * interface of an HBA.
11793 * This function is called with no lock held and always returns
11797 lpfc_sli_queue_init(struct lpfc_hba *phba)
11799 struct lpfc_sli *psli;
11800 struct lpfc_sli_ring *pring;
11804 spin_lock_irq(&phba->hbalock);
11805 INIT_LIST_HEAD(&psli->mboxq);
11806 INIT_LIST_HEAD(&psli->mboxq_cmpl);
11807 /* Initialize list headers for txq and txcmplq as double linked lists */
11808 for (i = 0; i < psli->num_rings; i++) {
11809 pring = &psli->sli3_ring[i];
11811 pring->sli.sli3.next_cmdidx = 0;
11812 pring->sli.sli3.local_getidx = 0;
11813 pring->sli.sli3.cmdidx = 0;
11814 INIT_LIST_HEAD(&pring->iocb_continueq);
11815 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
11816 INIT_LIST_HEAD(&pring->postbufq);
11818 INIT_LIST_HEAD(&pring->txq);
11819 INIT_LIST_HEAD(&pring->txcmplq);
11820 spin_lock_init(&pring->ring_lock);
11822 spin_unlock_irq(&phba->hbalock);
11826 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
11827 * @phba: Pointer to HBA context object.
11829 * This routine flushes the mailbox command subsystem. It will unconditionally
11830 * flush all the mailbox commands in the three possible stages in the mailbox
11831 * command sub-system: pending mailbox command queue; the outstanding mailbox
11832 * command; and completed mailbox command queue. It is caller's responsibility
11833 * to make sure that the driver is in the proper state to flush the mailbox
11834 * command sub-system. Namely, the posting of mailbox commands into the
11835 * pending mailbox command queue from the various clients must be stopped;
11836 * either the HBA is in a state that it will never works on the outstanding
11837 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
11838 * mailbox command has been completed.
11841 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
11843 LIST_HEAD(completions);
11844 struct lpfc_sli *psli = &phba->sli;
11846 unsigned long iflag;
11848 /* Disable softirqs, including timers from obtaining phba->hbalock */
11849 local_bh_disable();
11851 /* Flush all the mailbox commands in the mbox system */
11852 spin_lock_irqsave(&phba->hbalock, iflag);
11854 /* The pending mailbox command queue */
11855 list_splice_init(&phba->sli.mboxq, &completions);
11856 /* The outstanding active mailbox command */
11857 if (psli->mbox_active) {
11858 list_add_tail(&psli->mbox_active->list, &completions);
11859 psli->mbox_active = NULL;
11860 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11862 /* The completed mailbox command queue */
11863 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
11864 spin_unlock_irqrestore(&phba->hbalock, iflag);
11866 /* Enable softirqs again, done with phba->hbalock */
11869 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
11870 while (!list_empty(&completions)) {
11871 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
11872 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
11873 if (pmb->mbox_cmpl)
11874 pmb->mbox_cmpl(phba, pmb);
11879 * lpfc_sli_host_down - Vport cleanup function
11880 * @vport: Pointer to virtual port object.
11882 * lpfc_sli_host_down is called to clean up the resources
11883 * associated with a vport before destroying virtual
11884 * port data structures.
11885 * This function does following operations:
11886 * - Free discovery resources associated with this virtual
11888 * - Free iocbs associated with this virtual port in
11890 * - Send abort for all iocb commands associated with this
11891 * vport in txcmplq.
11893 * This function is called with no lock held and always returns 1.
11896 lpfc_sli_host_down(struct lpfc_vport *vport)
11898 LIST_HEAD(completions);
11899 struct lpfc_hba *phba = vport->phba;
11900 struct lpfc_sli *psli = &phba->sli;
11901 struct lpfc_queue *qp = NULL;
11902 struct lpfc_sli_ring *pring;
11903 struct lpfc_iocbq *iocb, *next_iocb;
11905 unsigned long flags = 0;
11906 uint16_t prev_pring_flag;
11908 lpfc_cleanup_discovery_resources(vport);
11910 spin_lock_irqsave(&phba->hbalock, flags);
11913 * Error everything on the txq since these iocbs
11914 * have not been given to the FW yet.
11915 * Also issue ABTS for everything on the txcmplq
11917 if (phba->sli_rev != LPFC_SLI_REV4) {
11918 for (i = 0; i < psli->num_rings; i++) {
11919 pring = &psli->sli3_ring[i];
11920 prev_pring_flag = pring->flag;
11921 /* Only slow rings */
11922 if (pring->ringno == LPFC_ELS_RING) {
11923 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11924 /* Set the lpfc data pending flag */
11925 set_bit(LPFC_DATA_READY, &phba->data_flags);
11927 list_for_each_entry_safe(iocb, next_iocb,
11928 &pring->txq, list) {
11929 if (iocb->vport != vport)
11931 list_move_tail(&iocb->list, &completions);
11933 list_for_each_entry_safe(iocb, next_iocb,
11934 &pring->txcmplq, list) {
11935 if (iocb->vport != vport)
11937 lpfc_sli_issue_abort_iotag(phba, pring, iocb,
11940 pring->flag = prev_pring_flag;
11943 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11947 if (pring == phba->sli4_hba.els_wq->pring) {
11948 pring->flag |= LPFC_DEFERRED_RING_EVENT;
11949 /* Set the lpfc data pending flag */
11950 set_bit(LPFC_DATA_READY, &phba->data_flags);
11952 prev_pring_flag = pring->flag;
11953 spin_lock(&pring->ring_lock);
11954 list_for_each_entry_safe(iocb, next_iocb,
11955 &pring->txq, list) {
11956 if (iocb->vport != vport)
11958 list_move_tail(&iocb->list, &completions);
11960 spin_unlock(&pring->ring_lock);
11961 list_for_each_entry_safe(iocb, next_iocb,
11962 &pring->txcmplq, list) {
11963 if (iocb->vport != vport)
11965 lpfc_sli_issue_abort_iotag(phba, pring, iocb,
11968 pring->flag = prev_pring_flag;
11971 spin_unlock_irqrestore(&phba->hbalock, flags);
11973 /* Make sure HBA is alive */
11974 lpfc_issue_hb_tmo(phba);
11976 /* Cancel all the IOCBs from the completions list */
11977 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
11983 * lpfc_sli_hba_down - Resource cleanup function for the HBA
11984 * @phba: Pointer to HBA context object.
11986 * This function cleans up all iocb, buffers, mailbox commands
11987 * while shutting down the HBA. This function is called with no
11988 * lock held and always returns 1.
11989 * This function does the following to cleanup driver resources:
11990 * - Free discovery resources for each virtual port
11991 * - Cleanup any pending fabric iocbs
11992 * - Iterate through the iocb txq and free each entry
11994 * - Free up any buffer posted to the HBA
11995 * - Free mailbox commands in the mailbox queue.
11998 lpfc_sli_hba_down(struct lpfc_hba *phba)
12000 LIST_HEAD(completions);
12001 struct lpfc_sli *psli = &phba->sli;
12002 struct lpfc_queue *qp = NULL;
12003 struct lpfc_sli_ring *pring;
12004 struct lpfc_dmabuf *buf_ptr;
12005 unsigned long flags = 0;
12008 /* Shutdown the mailbox command sub-system */
12009 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
12011 lpfc_hba_down_prep(phba);
12013 /* Disable softirqs, including timers from obtaining phba->hbalock */
12014 local_bh_disable();
12016 lpfc_fabric_abort_hba(phba);
12018 spin_lock_irqsave(&phba->hbalock, flags);
12021 * Error everything on the txq since these iocbs
12022 * have not been given to the FW yet.
12024 if (phba->sli_rev != LPFC_SLI_REV4) {
12025 for (i = 0; i < psli->num_rings; i++) {
12026 pring = &psli->sli3_ring[i];
12027 /* Only slow rings */
12028 if (pring->ringno == LPFC_ELS_RING) {
12029 pring->flag |= LPFC_DEFERRED_RING_EVENT;
12030 /* Set the lpfc data pending flag */
12031 set_bit(LPFC_DATA_READY, &phba->data_flags);
12033 list_splice_init(&pring->txq, &completions);
12036 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
12040 spin_lock(&pring->ring_lock);
12041 list_splice_init(&pring->txq, &completions);
12042 spin_unlock(&pring->ring_lock);
12043 if (pring == phba->sli4_hba.els_wq->pring) {
12044 pring->flag |= LPFC_DEFERRED_RING_EVENT;
12045 /* Set the lpfc data pending flag */
12046 set_bit(LPFC_DATA_READY, &phba->data_flags);
12050 spin_unlock_irqrestore(&phba->hbalock, flags);
12052 /* Cancel all the IOCBs from the completions list */
12053 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
12056 spin_lock_irqsave(&phba->hbalock, flags);
12057 list_splice_init(&phba->elsbuf, &completions);
12058 phba->elsbuf_cnt = 0;
12059 phba->elsbuf_prev_cnt = 0;
12060 spin_unlock_irqrestore(&phba->hbalock, flags);
12062 while (!list_empty(&completions)) {
12063 list_remove_head(&completions, buf_ptr,
12064 struct lpfc_dmabuf, list);
12065 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
12069 /* Enable softirqs again, done with phba->hbalock */
12072 /* Return any active mbox cmds */
12073 del_timer_sync(&psli->mbox_tmo);
12075 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
12076 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
12077 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
12083 * lpfc_sli_pcimem_bcopy - SLI memory copy function
12084 * @srcp: Source memory pointer.
12085 * @destp: Destination memory pointer.
12086 * @cnt: Number of words required to be copied.
12088 * This function is used for copying data between driver memory
12089 * and the SLI memory. This function also changes the endianness
12090 * of each word if native endianness is different from SLI
12091 * endianness. This function can be called with or without
12095 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
12097 uint32_t *src = srcp;
12098 uint32_t *dest = destp;
12102 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
12104 ldata = le32_to_cpu(ldata);
12113 * lpfc_sli_bemem_bcopy - SLI memory copy function
12114 * @srcp: Source memory pointer.
12115 * @destp: Destination memory pointer.
12116 * @cnt: Number of words required to be copied.
12118 * This function is used for copying data between a data structure
12119 * with big endian representation to local endianness.
12120 * This function can be called with or without lock.
12123 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
12125 uint32_t *src = srcp;
12126 uint32_t *dest = destp;
12130 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
12132 ldata = be32_to_cpu(ldata);
12140 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
12141 * @phba: Pointer to HBA context object.
12142 * @pring: Pointer to driver SLI ring object.
12143 * @mp: Pointer to driver buffer object.
12145 * This function is called with no lock held.
12146 * It always return zero after adding the buffer to the postbufq
12150 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
12151 struct lpfc_dmabuf *mp)
12153 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
12155 spin_lock_irq(&phba->hbalock);
12156 list_add_tail(&mp->list, &pring->postbufq);
12157 pring->postbufq_cnt++;
12158 spin_unlock_irq(&phba->hbalock);
12163 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
12164 * @phba: Pointer to HBA context object.
12166 * When HBQ is enabled, buffers are searched based on tags. This function
12167 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
12168 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
12169 * does not conflict with tags of buffer posted for unsolicited events.
12170 * The function returns the allocated tag. The function is called with
12174 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
12176 spin_lock_irq(&phba->hbalock);
12177 phba->buffer_tag_count++;
12179 * Always set the QUE_BUFTAG_BIT to distiguish between
12180 * a tag assigned by HBQ.
12182 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
12183 spin_unlock_irq(&phba->hbalock);
12184 return phba->buffer_tag_count;
12188 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
12189 * @phba: Pointer to HBA context object.
12190 * @pring: Pointer to driver SLI ring object.
12191 * @tag: Buffer tag.
12193 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
12194 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
12195 * iocb is posted to the response ring with the tag of the buffer.
12196 * This function searches the pring->postbufq list using the tag
12197 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
12198 * iocb. If the buffer is found then lpfc_dmabuf object of the
12199 * buffer is returned to the caller else NULL is returned.
12200 * This function is called with no lock held.
12202 struct lpfc_dmabuf *
12203 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
12206 struct lpfc_dmabuf *mp, *next_mp;
12207 struct list_head *slp = &pring->postbufq;
12209 /* Search postbufq, from the beginning, looking for a match on tag */
12210 spin_lock_irq(&phba->hbalock);
12211 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
12212 if (mp->buffer_tag == tag) {
12213 list_del_init(&mp->list);
12214 pring->postbufq_cnt--;
12215 spin_unlock_irq(&phba->hbalock);
12220 spin_unlock_irq(&phba->hbalock);
12221 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12222 "0402 Cannot find virtual addr for buffer tag on "
12223 "ring %d Data x%lx x%px x%px x%x\n",
12224 pring->ringno, (unsigned long) tag,
12225 slp->next, slp->prev, pring->postbufq_cnt);
12231 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
12232 * @phba: Pointer to HBA context object.
12233 * @pring: Pointer to driver SLI ring object.
12234 * @phys: DMA address of the buffer.
12236 * This function searches the buffer list using the dma_address
12237 * of unsolicited event to find the driver's lpfc_dmabuf object
12238 * corresponding to the dma_address. The function returns the
12239 * lpfc_dmabuf object if a buffer is found else it returns NULL.
12240 * This function is called by the ct and els unsolicited event
12241 * handlers to get the buffer associated with the unsolicited
12244 * This function is called with no lock held.
12246 struct lpfc_dmabuf *
12247 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
12250 struct lpfc_dmabuf *mp, *next_mp;
12251 struct list_head *slp = &pring->postbufq;
12253 /* Search postbufq, from the beginning, looking for a match on phys */
12254 spin_lock_irq(&phba->hbalock);
12255 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
12256 if (mp->phys == phys) {
12257 list_del_init(&mp->list);
12258 pring->postbufq_cnt--;
12259 spin_unlock_irq(&phba->hbalock);
12264 spin_unlock_irq(&phba->hbalock);
12265 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12266 "0410 Cannot find virtual addr for mapped buf on "
12267 "ring %d Data x%llx x%px x%px x%x\n",
12268 pring->ringno, (unsigned long long)phys,
12269 slp->next, slp->prev, pring->postbufq_cnt);
12274 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
12275 * @phba: Pointer to HBA context object.
12276 * @cmdiocb: Pointer to driver command iocb object.
12277 * @rspiocb: Pointer to driver response iocb object.
12279 * This function is the completion handler for the abort iocbs for
12280 * ELS commands. This function is called from the ELS ring event
12281 * handler with no lock held. This function frees memory resources
12282 * associated with the abort iocb.
12285 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
12286 struct lpfc_iocbq *rspiocb)
12288 u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
12289 u32 ulp_word4 = get_job_word4(phba, rspiocb);
12290 u8 cmnd = get_job_cmnd(phba, cmdiocb);
12294 * Assume that the port already completed and returned, or
12295 * will return the iocb. Just Log the message.
12297 if (phba->sli_rev < LPFC_SLI_REV4) {
12298 if (cmnd == CMD_ABORT_XRI_CX &&
12299 ulp_status == IOSTAT_LOCAL_REJECT &&
12300 ulp_word4 == IOERR_ABORT_REQUESTED) {
12305 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
12306 "0327 Cannot abort els iocb x%px "
12307 "with io cmd xri %x abort tag : x%x, "
12308 "abort status %x abort code %x\n",
12309 cmdiocb, get_job_abtsiotag(phba, cmdiocb),
12310 (phba->sli_rev == LPFC_SLI_REV4) ?
12311 get_wqe_reqtag(cmdiocb) :
12312 cmdiocb->iocb.un.acxri.abortContextTag,
12313 ulp_status, ulp_word4);
12317 lpfc_sli_release_iocbq(phba, cmdiocb);
12322 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
12323 * @phba: Pointer to HBA context object.
12324 * @cmdiocb: Pointer to driver command iocb object.
12325 * @rspiocb: Pointer to driver response iocb object.
12327 * The function is called from SLI ring event handler with no
12328 * lock held. This function is the completion handler for ELS commands
12329 * which are aborted. The function frees memory resources used for
12330 * the aborted ELS commands.
12333 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
12334 struct lpfc_iocbq *rspiocb)
12336 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
12338 LPFC_MBOXQ_t *mbox;
12339 u32 ulp_command, ulp_status, ulp_word4, iotag;
12341 ulp_command = get_job_cmnd(phba, cmdiocb);
12342 ulp_status = get_job_ulpstatus(phba, rspiocb);
12343 ulp_word4 = get_job_word4(phba, rspiocb);
12345 if (phba->sli_rev == LPFC_SLI_REV4) {
12346 iotag = get_wqe_reqtag(cmdiocb);
12348 irsp = &rspiocb->iocb;
12349 iotag = irsp->ulpIoTag;
12351 /* It is possible a PLOGI_RJT for NPIV ports to get aborted.
12352 * The MBX_REG_LOGIN64 mbox command is freed back to the
12353 * mbox_mem_pool here.
12355 if (cmdiocb->context_un.mbox) {
12356 mbox = cmdiocb->context_un.mbox;
12357 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
12358 cmdiocb->context_un.mbox = NULL;
12362 /* ELS cmd tag <ulpIoTag> completes */
12363 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
12364 "0139 Ignoring ELS cmd code x%x completion Data: "
12365 "x%x x%x x%x x%px\n",
12366 ulp_command, ulp_status, ulp_word4, iotag,
12369 * Deref the ndlp after free_iocb. sli_release_iocb will access the ndlp
12370 * if exchange is busy.
12372 if (ulp_command == CMD_GEN_REQUEST64_CR)
12373 lpfc_ct_free_iocb(phba, cmdiocb);
12375 lpfc_els_free_iocb(phba, cmdiocb);
12377 lpfc_nlp_put(ndlp);
12381 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
12382 * @phba: Pointer to HBA context object.
12383 * @pring: Pointer to driver SLI ring object.
12384 * @cmdiocb: Pointer to driver command iocb object.
12385 * @cmpl: completion function.
12387 * This function issues an abort iocb for the provided command iocb. In case
12388 * of unloading, the abort iocb will not be issued to commands on the ELS
12389 * ring. Instead, the callback function shall be changed to those commands
12390 * so that nothing happens when them finishes. This function is called with
12391 * hbalock held andno ring_lock held (SLI4). The function returns IOCB_SUCCESS
12392 * when the command iocb is an abort request.
12396 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
12397 struct lpfc_iocbq *cmdiocb, void *cmpl)
12399 struct lpfc_vport *vport = cmdiocb->vport;
12400 struct lpfc_iocbq *abtsiocbp;
12401 int retval = IOCB_ERROR;
12402 unsigned long iflags;
12403 struct lpfc_nodelist *ndlp = NULL;
12404 u32 ulp_command = get_job_cmnd(phba, cmdiocb);
12405 u16 ulp_context, iotag;
12409 * There are certain command types we don't want to abort. And we
12410 * don't want to abort commands that are already in the process of
12413 if (ulp_command == CMD_ABORT_XRI_WQE ||
12414 ulp_command == CMD_ABORT_XRI_CN ||
12415 ulp_command == CMD_CLOSE_XRI_CN ||
12416 cmdiocb->cmd_flag & LPFC_DRIVER_ABORTED)
12417 return IOCB_ABORTING;
12420 if (cmdiocb->cmd_flag & LPFC_IO_FABRIC)
12421 cmdiocb->fabric_cmd_cmpl = lpfc_ignore_els_cmpl;
12423 cmdiocb->cmd_cmpl = lpfc_ignore_els_cmpl;
12428 * If we're unloading, don't abort iocb on the ELS ring, but change
12429 * the callback so that nothing happens when it finishes.
12431 if ((vport->load_flag & FC_UNLOADING) &&
12432 pring->ringno == LPFC_ELS_RING) {
12433 if (cmdiocb->cmd_flag & LPFC_IO_FABRIC)
12434 cmdiocb->fabric_cmd_cmpl = lpfc_ignore_els_cmpl;
12436 cmdiocb->cmd_cmpl = lpfc_ignore_els_cmpl;
12440 /* issue ABTS for this IOCB based on iotag */
12441 abtsiocbp = __lpfc_sli_get_iocbq(phba);
12442 if (abtsiocbp == NULL)
12443 return IOCB_NORESOURCE;
12445 /* This signals the response to set the correct status
12446 * before calling the completion handler
12448 cmdiocb->cmd_flag |= LPFC_DRIVER_ABORTED;
12450 if (phba->sli_rev == LPFC_SLI_REV4) {
12451 ulp_context = cmdiocb->sli4_xritag;
12452 iotag = abtsiocbp->iotag;
12454 iotag = cmdiocb->iocb.ulpIoTag;
12455 if (pring->ringno == LPFC_ELS_RING) {
12456 ndlp = cmdiocb->ndlp;
12457 ulp_context = ndlp->nlp_rpi;
12459 ulp_context = cmdiocb->iocb.ulpContext;
12463 if (phba->link_state < LPFC_LINK_UP ||
12464 (phba->sli_rev == LPFC_SLI_REV4 &&
12465 phba->sli4_hba.link_state.status == LPFC_FC_LA_TYPE_LINK_DOWN) ||
12466 (phba->link_flag & LS_EXTERNAL_LOOPBACK))
12471 lpfc_sli_prep_abort_xri(phba, abtsiocbp, ulp_context, iotag,
12472 cmdiocb->iocb.ulpClass,
12473 LPFC_WQE_CQ_ID_DEFAULT, ia, false);
12475 abtsiocbp->vport = vport;
12477 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
12478 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
12479 if (cmdiocb->cmd_flag & LPFC_IO_FCP)
12480 abtsiocbp->cmd_flag |= (LPFC_IO_FCP | LPFC_USE_FCPWQIDX);
12482 if (cmdiocb->cmd_flag & LPFC_IO_FOF)
12483 abtsiocbp->cmd_flag |= LPFC_IO_FOF;
12486 abtsiocbp->cmd_cmpl = cmpl;
12488 abtsiocbp->cmd_cmpl = lpfc_sli_abort_els_cmpl;
12489 abtsiocbp->vport = vport;
12491 if (phba->sli_rev == LPFC_SLI_REV4) {
12492 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
12493 if (unlikely(pring == NULL))
12494 goto abort_iotag_exit;
12495 /* Note: both hbalock and ring_lock need to be set here */
12496 spin_lock_irqsave(&pring->ring_lock, iflags);
12497 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
12499 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12501 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
12507 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
12508 "0339 Abort IO XRI x%x, Original iotag x%x, "
12509 "abort tag x%x Cmdjob : x%px Abortjob : x%px "
12511 ulp_context, (phba->sli_rev == LPFC_SLI_REV4) ?
12512 cmdiocb->iotag : iotag, iotag, cmdiocb, abtsiocbp,
12515 cmdiocb->cmd_flag &= ~LPFC_DRIVER_ABORTED;
12516 __lpfc_sli_release_iocbq(phba, abtsiocbp);
12520 * Caller to this routine should check for IOCB_ERROR
12521 * and handle it properly. This routine no longer removes
12522 * iocb off txcmplq and call compl in case of IOCB_ERROR.
12528 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
12529 * @phba: pointer to lpfc HBA data structure.
12531 * This routine will abort all pending and outstanding iocbs to an HBA.
12534 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
12536 struct lpfc_sli *psli = &phba->sli;
12537 struct lpfc_sli_ring *pring;
12538 struct lpfc_queue *qp = NULL;
12541 if (phba->sli_rev != LPFC_SLI_REV4) {
12542 for (i = 0; i < psli->num_rings; i++) {
12543 pring = &psli->sli3_ring[i];
12544 lpfc_sli_abort_iocb_ring(phba, pring);
12548 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
12552 lpfc_sli_abort_iocb_ring(phba, pring);
12557 * lpfc_sli_validate_fcp_iocb_for_abort - filter iocbs appropriate for FCP aborts
12558 * @iocbq: Pointer to iocb object.
12559 * @vport: Pointer to driver virtual port object.
12561 * This function acts as an iocb filter for functions which abort FCP iocbs.
12564 * -ENODEV, if a null iocb or vport ptr is encountered
12565 * -EINVAL, if the iocb is not an FCP I/O, not on the TX cmpl queue, premarked as
12566 * driver already started the abort process, or is an abort iocb itself
12567 * 0, passes criteria for aborting the FCP I/O iocb
12570 lpfc_sli_validate_fcp_iocb_for_abort(struct lpfc_iocbq *iocbq,
12571 struct lpfc_vport *vport)
12575 /* No null ptr vports */
12576 if (!iocbq || iocbq->vport != vport)
12579 /* iocb must be for FCP IO, already exists on the TX cmpl queue,
12580 * can't be premarked as driver aborted, nor be an ABORT iocb itself
12582 ulp_command = get_job_cmnd(vport->phba, iocbq);
12583 if (!(iocbq->cmd_flag & LPFC_IO_FCP) ||
12584 !(iocbq->cmd_flag & LPFC_IO_ON_TXCMPLQ) ||
12585 (iocbq->cmd_flag & LPFC_DRIVER_ABORTED) ||
12586 (ulp_command == CMD_ABORT_XRI_CN ||
12587 ulp_command == CMD_CLOSE_XRI_CN ||
12588 ulp_command == CMD_ABORT_XRI_WQE))
12595 * lpfc_sli_validate_fcp_iocb - validate commands associated with a SCSI target
12596 * @iocbq: Pointer to driver iocb object.
12597 * @vport: Pointer to driver virtual port object.
12598 * @tgt_id: SCSI ID of the target.
12599 * @lun_id: LUN ID of the scsi device.
12600 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
12602 * This function acts as an iocb filter for validating a lun/SCSI target/SCSI
12606 * 0 if the filtering criteria is met for the given iocb and will return
12607 * 1 if the filtering criteria is not met.
12608 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
12609 * given iocb is for the SCSI device specified by vport, tgt_id and
12610 * lun_id parameter.
12611 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
12612 * given iocb is for the SCSI target specified by vport and tgt_id
12614 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
12615 * given iocb is for the SCSI host associated with the given vport.
12616 * This function is called with no locks held.
12619 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
12620 uint16_t tgt_id, uint64_t lun_id,
12621 lpfc_ctx_cmd ctx_cmd)
12623 struct lpfc_io_buf *lpfc_cmd;
12626 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
12628 if (lpfc_cmd->pCmd == NULL)
12633 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
12634 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
12635 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
12639 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
12640 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
12643 case LPFC_CTX_HOST:
12647 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
12648 __func__, ctx_cmd);
12656 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
12657 * @vport: Pointer to virtual port.
12658 * @tgt_id: SCSI ID of the target.
12659 * @lun_id: LUN ID of the scsi device.
12660 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
12662 * This function returns number of FCP commands pending for the vport.
12663 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
12664 * commands pending on the vport associated with SCSI device specified
12665 * by tgt_id and lun_id parameters.
12666 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
12667 * commands pending on the vport associated with SCSI target specified
12668 * by tgt_id parameter.
12669 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
12670 * commands pending on the vport.
12671 * This function returns the number of iocbs which satisfy the filter.
12672 * This function is called without any lock held.
12675 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
12676 lpfc_ctx_cmd ctx_cmd)
12678 struct lpfc_hba *phba = vport->phba;
12679 struct lpfc_iocbq *iocbq;
12681 unsigned long iflags;
12684 spin_lock_irqsave(&phba->hbalock, iflags);
12685 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
12686 iocbq = phba->sli.iocbq_lookup[i];
12688 if (!iocbq || iocbq->vport != vport)
12690 if (!(iocbq->cmd_flag & LPFC_IO_FCP) ||
12691 !(iocbq->cmd_flag & LPFC_IO_ON_TXCMPLQ))
12694 /* Include counting outstanding aborts */
12695 ulp_command = get_job_cmnd(phba, iocbq);
12696 if (ulp_command == CMD_ABORT_XRI_CN ||
12697 ulp_command == CMD_CLOSE_XRI_CN ||
12698 ulp_command == CMD_ABORT_XRI_WQE) {
12703 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
12707 spin_unlock_irqrestore(&phba->hbalock, iflags);
12713 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
12714 * @phba: Pointer to HBA context object
12715 * @cmdiocb: Pointer to command iocb object.
12716 * @rspiocb: Pointer to response iocb object.
12718 * This function is called when an aborted FCP iocb completes. This
12719 * function is called by the ring event handler with no lock held.
12720 * This function frees the iocb.
12723 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
12724 struct lpfc_iocbq *rspiocb)
12726 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12727 "3096 ABORT_XRI_CX completing on rpi x%x "
12728 "original iotag x%x, abort cmd iotag x%x "
12729 "status 0x%x, reason 0x%x\n",
12730 (phba->sli_rev == LPFC_SLI_REV4) ?
12731 cmdiocb->sli4_xritag :
12732 cmdiocb->iocb.un.acxri.abortContextTag,
12733 get_job_abtsiotag(phba, cmdiocb),
12734 cmdiocb->iotag, get_job_ulpstatus(phba, rspiocb),
12735 get_job_word4(phba, rspiocb));
12736 lpfc_sli_release_iocbq(phba, cmdiocb);
12741 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
12742 * @vport: Pointer to virtual port.
12743 * @tgt_id: SCSI ID of the target.
12744 * @lun_id: LUN ID of the scsi device.
12745 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
12747 * This function sends an abort command for every SCSI command
12748 * associated with the given virtual port pending on the ring
12749 * filtered by lpfc_sli_validate_fcp_iocb_for_abort and then
12750 * lpfc_sli_validate_fcp_iocb function. The ordering for validation before
12751 * submitting abort iocbs must be lpfc_sli_validate_fcp_iocb_for_abort
12752 * followed by lpfc_sli_validate_fcp_iocb.
12754 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
12755 * FCP iocbs associated with lun specified by tgt_id and lun_id
12757 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
12758 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
12759 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
12760 * FCP iocbs associated with virtual port.
12761 * The pring used for SLI3 is sli3_ring[LPFC_FCP_RING], for SLI4
12762 * lpfc_sli4_calc_ring is used.
12763 * This function returns number of iocbs it failed to abort.
12764 * This function is called with no locks held.
12767 lpfc_sli_abort_iocb(struct lpfc_vport *vport, u16 tgt_id, u64 lun_id,
12768 lpfc_ctx_cmd abort_cmd)
12770 struct lpfc_hba *phba = vport->phba;
12771 struct lpfc_sli_ring *pring = NULL;
12772 struct lpfc_iocbq *iocbq;
12773 int errcnt = 0, ret_val = 0;
12774 unsigned long iflags;
12777 /* all I/Os are in process of being flushed */
12778 if (phba->hba_flag & HBA_IOQ_FLUSH)
12781 for (i = 1; i <= phba->sli.last_iotag; i++) {
12782 iocbq = phba->sli.iocbq_lookup[i];
12784 if (lpfc_sli_validate_fcp_iocb_for_abort(iocbq, vport))
12787 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
12791 spin_lock_irqsave(&phba->hbalock, iflags);
12792 if (phba->sli_rev == LPFC_SLI_REV3) {
12793 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12794 } else if (phba->sli_rev == LPFC_SLI_REV4) {
12795 pring = lpfc_sli4_calc_ring(phba, iocbq);
12797 ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocbq,
12798 lpfc_sli_abort_fcp_cmpl);
12799 spin_unlock_irqrestore(&phba->hbalock, iflags);
12800 if (ret_val != IOCB_SUCCESS)
12808 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
12809 * @vport: Pointer to virtual port.
12810 * @pring: Pointer to driver SLI ring object.
12811 * @tgt_id: SCSI ID of the target.
12812 * @lun_id: LUN ID of the scsi device.
12813 * @cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
12815 * This function sends an abort command for every SCSI command
12816 * associated with the given virtual port pending on the ring
12817 * filtered by lpfc_sli_validate_fcp_iocb_for_abort and then
12818 * lpfc_sli_validate_fcp_iocb function. The ordering for validation before
12819 * submitting abort iocbs must be lpfc_sli_validate_fcp_iocb_for_abort
12820 * followed by lpfc_sli_validate_fcp_iocb.
12822 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
12823 * FCP iocbs associated with lun specified by tgt_id and lun_id
12825 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
12826 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
12827 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
12828 * FCP iocbs associated with virtual port.
12829 * This function returns number of iocbs it aborted .
12830 * This function is called with no locks held right after a taskmgmt
12834 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
12835 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
12837 struct lpfc_hba *phba = vport->phba;
12838 struct lpfc_io_buf *lpfc_cmd;
12839 struct lpfc_iocbq *abtsiocbq;
12840 struct lpfc_nodelist *ndlp = NULL;
12841 struct lpfc_iocbq *iocbq;
12842 int sum, i, ret_val;
12843 unsigned long iflags;
12844 struct lpfc_sli_ring *pring_s4 = NULL;
12845 u16 ulp_context, iotag, cqid = LPFC_WQE_CQ_ID_DEFAULT;
12848 spin_lock_irqsave(&phba->hbalock, iflags);
12850 /* all I/Os are in process of being flushed */
12851 if (phba->hba_flag & HBA_IOQ_FLUSH) {
12852 spin_unlock_irqrestore(&phba->hbalock, iflags);
12857 for (i = 1; i <= phba->sli.last_iotag; i++) {
12858 iocbq = phba->sli.iocbq_lookup[i];
12860 if (lpfc_sli_validate_fcp_iocb_for_abort(iocbq, vport))
12863 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
12867 /* Guard against IO completion being called at same time */
12868 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
12869 spin_lock(&lpfc_cmd->buf_lock);
12871 if (!lpfc_cmd->pCmd) {
12872 spin_unlock(&lpfc_cmd->buf_lock);
12876 if (phba->sli_rev == LPFC_SLI_REV4) {
12878 phba->sli4_hba.hdwq[iocbq->hba_wqidx].io_wq->pring;
12880 spin_unlock(&lpfc_cmd->buf_lock);
12883 /* Note: both hbalock and ring_lock must be set here */
12884 spin_lock(&pring_s4->ring_lock);
12888 * If the iocbq is already being aborted, don't take a second
12889 * action, but do count it.
12891 if ((iocbq->cmd_flag & LPFC_DRIVER_ABORTED) ||
12892 !(iocbq->cmd_flag & LPFC_IO_ON_TXCMPLQ)) {
12893 if (phba->sli_rev == LPFC_SLI_REV4)
12894 spin_unlock(&pring_s4->ring_lock);
12895 spin_unlock(&lpfc_cmd->buf_lock);
12899 /* issue ABTS for this IOCB based on iotag */
12900 abtsiocbq = __lpfc_sli_get_iocbq(phba);
12902 if (phba->sli_rev == LPFC_SLI_REV4)
12903 spin_unlock(&pring_s4->ring_lock);
12904 spin_unlock(&lpfc_cmd->buf_lock);
12908 if (phba->sli_rev == LPFC_SLI_REV4) {
12909 iotag = abtsiocbq->iotag;
12910 ulp_context = iocbq->sli4_xritag;
12911 cqid = lpfc_cmd->hdwq->io_cq_map;
12913 iotag = iocbq->iocb.ulpIoTag;
12914 if (pring->ringno == LPFC_ELS_RING) {
12915 ndlp = iocbq->ndlp;
12916 ulp_context = ndlp->nlp_rpi;
12918 ulp_context = iocbq->iocb.ulpContext;
12922 ndlp = lpfc_cmd->rdata->pnode;
12924 if (lpfc_is_link_up(phba) &&
12925 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE) &&
12926 !(phba->link_flag & LS_EXTERNAL_LOOPBACK))
12931 lpfc_sli_prep_abort_xri(phba, abtsiocbq, ulp_context, iotag,
12932 iocbq->iocb.ulpClass, cqid,
12935 abtsiocbq->vport = vport;
12937 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
12938 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
12939 if (iocbq->cmd_flag & LPFC_IO_FCP)
12940 abtsiocbq->cmd_flag |= LPFC_USE_FCPWQIDX;
12941 if (iocbq->cmd_flag & LPFC_IO_FOF)
12942 abtsiocbq->cmd_flag |= LPFC_IO_FOF;
12944 /* Setup callback routine and issue the command. */
12945 abtsiocbq->cmd_cmpl = lpfc_sli_abort_fcp_cmpl;
12948 * Indicate the IO is being aborted by the driver and set
12949 * the caller's flag into the aborted IO.
12951 iocbq->cmd_flag |= LPFC_DRIVER_ABORTED;
12953 if (phba->sli_rev == LPFC_SLI_REV4) {
12954 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
12956 spin_unlock(&pring_s4->ring_lock);
12958 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
12962 spin_unlock(&lpfc_cmd->buf_lock);
12964 if (ret_val == IOCB_ERROR)
12965 __lpfc_sli_release_iocbq(phba, abtsiocbq);
12969 spin_unlock_irqrestore(&phba->hbalock, iflags);
12974 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
12975 * @phba: Pointer to HBA context object.
12976 * @cmdiocbq: Pointer to command iocb.
12977 * @rspiocbq: Pointer to response iocb.
12979 * This function is the completion handler for iocbs issued using
12980 * lpfc_sli_issue_iocb_wait function. This function is called by the
12981 * ring event handler function without any lock held. This function
12982 * can be called from both worker thread context and interrupt
12983 * context. This function also can be called from other thread which
12984 * cleans up the SLI layer objects.
12985 * This function copy the contents of the response iocb to the
12986 * response iocb memory object provided by the caller of
12987 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
12988 * sleeps for the iocb completion.
12991 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
12992 struct lpfc_iocbq *cmdiocbq,
12993 struct lpfc_iocbq *rspiocbq)
12995 wait_queue_head_t *pdone_q;
12996 unsigned long iflags;
12997 struct lpfc_io_buf *lpfc_cmd;
12998 size_t offset = offsetof(struct lpfc_iocbq, wqe);
13000 spin_lock_irqsave(&phba->hbalock, iflags);
13001 if (cmdiocbq->cmd_flag & LPFC_IO_WAKE_TMO) {
13004 * A time out has occurred for the iocb. If a time out
13005 * completion handler has been supplied, call it. Otherwise,
13006 * just free the iocbq.
13009 spin_unlock_irqrestore(&phba->hbalock, iflags);
13010 cmdiocbq->cmd_cmpl = cmdiocbq->wait_cmd_cmpl;
13011 cmdiocbq->wait_cmd_cmpl = NULL;
13012 if (cmdiocbq->cmd_cmpl)
13013 cmdiocbq->cmd_cmpl(phba, cmdiocbq, NULL);
13015 lpfc_sli_release_iocbq(phba, cmdiocbq);
13019 /* Copy the contents of the local rspiocb into the caller's buffer. */
13020 cmdiocbq->cmd_flag |= LPFC_IO_WAKE;
13021 if (cmdiocbq->rsp_iocb && rspiocbq)
13022 memcpy((char *)cmdiocbq->rsp_iocb + offset,
13023 (char *)rspiocbq + offset, sizeof(*rspiocbq) - offset);
13025 /* Set the exchange busy flag for task management commands */
13026 if ((cmdiocbq->cmd_flag & LPFC_IO_FCP) &&
13027 !(cmdiocbq->cmd_flag & LPFC_IO_LIBDFC)) {
13028 lpfc_cmd = container_of(cmdiocbq, struct lpfc_io_buf,
13030 if (rspiocbq && (rspiocbq->cmd_flag & LPFC_EXCHANGE_BUSY))
13031 lpfc_cmd->flags |= LPFC_SBUF_XBUSY;
13033 lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
13036 pdone_q = cmdiocbq->context_un.wait_queue;
13039 spin_unlock_irqrestore(&phba->hbalock, iflags);
13044 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
13045 * @phba: Pointer to HBA context object..
13046 * @piocbq: Pointer to command iocb.
13047 * @flag: Flag to test.
13049 * This routine grabs the hbalock and then test the cmd_flag to
13050 * see if the passed in flag is set.
13052 * 1 if flag is set.
13053 * 0 if flag is not set.
13056 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
13057 struct lpfc_iocbq *piocbq, uint32_t flag)
13059 unsigned long iflags;
13062 spin_lock_irqsave(&phba->hbalock, iflags);
13063 ret = piocbq->cmd_flag & flag;
13064 spin_unlock_irqrestore(&phba->hbalock, iflags);
13070 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
13071 * @phba: Pointer to HBA context object..
13072 * @ring_number: Ring number
13073 * @piocb: Pointer to command iocb.
13074 * @prspiocbq: Pointer to response iocb.
13075 * @timeout: Timeout in number of seconds.
13077 * This function issues the iocb to firmware and waits for the
13078 * iocb to complete. The cmd_cmpl field of the shall be used
13079 * to handle iocbs which time out. If the field is NULL, the
13080 * function shall free the iocbq structure. If more clean up is
13081 * needed, the caller is expected to provide a completion function
13082 * that will provide the needed clean up. If the iocb command is
13083 * not completed within timeout seconds, the function will either
13084 * free the iocbq structure (if cmd_cmpl == NULL) or execute the
13085 * completion function set in the cmd_cmpl field and then return
13086 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
13087 * resources if this function returns IOCB_TIMEDOUT.
13088 * The function waits for the iocb completion using an
13089 * non-interruptible wait.
13090 * This function will sleep while waiting for iocb completion.
13091 * So, this function should not be called from any context which
13092 * does not allow sleeping. Due to the same reason, this function
13093 * cannot be called with interrupt disabled.
13094 * This function assumes that the iocb completions occur while
13095 * this function sleep. So, this function cannot be called from
13096 * the thread which process iocb completion for this ring.
13097 * This function clears the cmd_flag of the iocb object before
13098 * issuing the iocb and the iocb completion handler sets this
13099 * flag and wakes this thread when the iocb completes.
13100 * The contents of the response iocb will be copied to prspiocbq
13101 * by the completion handler when the command completes.
13102 * This function returns IOCB_SUCCESS when success.
13103 * This function is called with no lock held.
13106 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
13107 uint32_t ring_number,
13108 struct lpfc_iocbq *piocb,
13109 struct lpfc_iocbq *prspiocbq,
13112 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
13113 long timeleft, timeout_req = 0;
13114 int retval = IOCB_SUCCESS;
13116 struct lpfc_iocbq *iocb;
13118 int txcmplq_cnt = 0;
13119 struct lpfc_sli_ring *pring;
13120 unsigned long iflags;
13121 bool iocb_completed = true;
13123 if (phba->sli_rev >= LPFC_SLI_REV4) {
13124 lpfc_sli_prep_wqe(phba, piocb);
13126 pring = lpfc_sli4_calc_ring(phba, piocb);
13128 pring = &phba->sli.sli3_ring[ring_number];
13130 * If the caller has provided a response iocbq buffer, then rsp_iocb
13131 * is NULL or its an error.
13134 if (piocb->rsp_iocb)
13136 piocb->rsp_iocb = prspiocbq;
13139 piocb->wait_cmd_cmpl = piocb->cmd_cmpl;
13140 piocb->cmd_cmpl = lpfc_sli_wake_iocb_wait;
13141 piocb->context_un.wait_queue = &done_q;
13142 piocb->cmd_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
13144 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
13145 if (lpfc_readl(phba->HCregaddr, &creg_val))
13147 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
13148 writel(creg_val, phba->HCregaddr);
13149 readl(phba->HCregaddr); /* flush */
13152 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
13153 SLI_IOCB_RET_IOCB);
13154 if (retval == IOCB_SUCCESS) {
13155 timeout_req = msecs_to_jiffies(timeout * 1000);
13156 timeleft = wait_event_timeout(done_q,
13157 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
13159 spin_lock_irqsave(&phba->hbalock, iflags);
13160 if (!(piocb->cmd_flag & LPFC_IO_WAKE)) {
13163 * IOCB timed out. Inform the wake iocb wait
13164 * completion function and set local status
13167 iocb_completed = false;
13168 piocb->cmd_flag |= LPFC_IO_WAKE_TMO;
13170 spin_unlock_irqrestore(&phba->hbalock, iflags);
13171 if (iocb_completed) {
13172 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13173 "0331 IOCB wake signaled\n");
13174 /* Note: we are not indicating if the IOCB has a success
13175 * status or not - that's for the caller to check.
13176 * IOCB_SUCCESS means just that the command was sent and
13177 * completed. Not that it completed successfully.
13179 } else if (timeleft == 0) {
13180 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13181 "0338 IOCB wait timeout error - no "
13182 "wake response Data x%x\n", timeout);
13183 retval = IOCB_TIMEDOUT;
13185 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13186 "0330 IOCB wake NOT set, "
13188 timeout, (timeleft / jiffies));
13189 retval = IOCB_TIMEDOUT;
13191 } else if (retval == IOCB_BUSY) {
13192 if (phba->cfg_log_verbose & LOG_SLI) {
13193 list_for_each_entry(iocb, &pring->txq, list) {
13196 list_for_each_entry(iocb, &pring->txcmplq, list) {
13199 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13200 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
13201 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
13205 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13206 "0332 IOCB wait issue failed, Data x%x\n",
13208 retval = IOCB_ERROR;
13211 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
13212 if (lpfc_readl(phba->HCregaddr, &creg_val))
13214 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
13215 writel(creg_val, phba->HCregaddr);
13216 readl(phba->HCregaddr); /* flush */
13220 piocb->rsp_iocb = NULL;
13222 piocb->context_un.wait_queue = NULL;
13223 piocb->cmd_cmpl = NULL;
13228 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
13229 * @phba: Pointer to HBA context object.
13230 * @pmboxq: Pointer to driver mailbox object.
13231 * @timeout: Timeout in number of seconds.
13233 * This function issues the mailbox to firmware and waits for the
13234 * mailbox command to complete. If the mailbox command is not
13235 * completed within timeout seconds, it returns MBX_TIMEOUT.
13236 * The function waits for the mailbox completion using an
13237 * interruptible wait. If the thread is woken up due to a
13238 * signal, MBX_TIMEOUT error is returned to the caller. Caller
13239 * should not free the mailbox resources, if this function returns
13241 * This function will sleep while waiting for mailbox completion.
13242 * So, this function should not be called from any context which
13243 * does not allow sleeping. Due to the same reason, this function
13244 * cannot be called with interrupt disabled.
13245 * This function assumes that the mailbox completion occurs while
13246 * this function sleep. So, this function cannot be called from
13247 * the worker thread which processes mailbox completion.
13248 * This function is called in the context of HBA management
13250 * This function returns MBX_SUCCESS when successful.
13251 * This function is called with no lock held.
13254 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
13257 struct completion mbox_done;
13259 unsigned long flag;
13261 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
13262 /* setup wake call as IOCB callback */
13263 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
13265 /* setup context3 field to pass wait_queue pointer to wake function */
13266 init_completion(&mbox_done);
13267 pmboxq->context3 = &mbox_done;
13268 /* now issue the command */
13269 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
13270 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
13271 wait_for_completion_timeout(&mbox_done,
13272 msecs_to_jiffies(timeout * 1000));
13274 spin_lock_irqsave(&phba->hbalock, flag);
13275 pmboxq->context3 = NULL;
13277 * if LPFC_MBX_WAKE flag is set the mailbox is completed
13278 * else do not free the resources.
13280 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
13281 retval = MBX_SUCCESS;
13283 retval = MBX_TIMEOUT;
13284 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13286 spin_unlock_irqrestore(&phba->hbalock, flag);
13292 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
13293 * @phba: Pointer to HBA context.
13294 * @mbx_action: Mailbox shutdown options.
13296 * This function is called to shutdown the driver's mailbox sub-system.
13297 * It first marks the mailbox sub-system is in a block state to prevent
13298 * the asynchronous mailbox command from issued off the pending mailbox
13299 * command queue. If the mailbox command sub-system shutdown is due to
13300 * HBA error conditions such as EEH or ERATT, this routine shall invoke
13301 * the mailbox sub-system flush routine to forcefully bring down the
13302 * mailbox sub-system. Otherwise, if it is due to normal condition (such
13303 * as with offline or HBA function reset), this routine will wait for the
13304 * outstanding mailbox command to complete before invoking the mailbox
13305 * sub-system flush routine to gracefully bring down mailbox sub-system.
13308 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
13310 struct lpfc_sli *psli = &phba->sli;
13311 unsigned long timeout;
13313 if (mbx_action == LPFC_MBX_NO_WAIT) {
13314 /* delay 100ms for port state */
13316 lpfc_sli_mbox_sys_flush(phba);
13319 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
13321 /* Disable softirqs, including timers from obtaining phba->hbalock */
13322 local_bh_disable();
13324 spin_lock_irq(&phba->hbalock);
13325 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13327 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
13328 /* Determine how long we might wait for the active mailbox
13329 * command to be gracefully completed by firmware.
13331 if (phba->sli.mbox_active)
13332 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
13333 phba->sli.mbox_active) *
13335 spin_unlock_irq(&phba->hbalock);
13337 /* Enable softirqs again, done with phba->hbalock */
13340 while (phba->sli.mbox_active) {
13341 /* Check active mailbox complete status every 2ms */
13343 if (time_after(jiffies, timeout))
13344 /* Timeout, let the mailbox flush routine to
13345 * forcefully release active mailbox command
13350 spin_unlock_irq(&phba->hbalock);
13352 /* Enable softirqs again, done with phba->hbalock */
13356 lpfc_sli_mbox_sys_flush(phba);
13360 * lpfc_sli_eratt_read - read sli-3 error attention events
13361 * @phba: Pointer to HBA context.
13363 * This function is called to read the SLI3 device error attention registers
13364 * for possible error attention events. The caller must hold the hostlock
13365 * with spin_lock_irq().
13367 * This function returns 1 when there is Error Attention in the Host Attention
13368 * Register and returns 0 otherwise.
13371 lpfc_sli_eratt_read(struct lpfc_hba *phba)
13375 /* Read chip Host Attention (HA) register */
13376 if (lpfc_readl(phba->HAregaddr, &ha_copy))
13379 if (ha_copy & HA_ERATT) {
13380 /* Read host status register to retrieve error event */
13381 if (lpfc_sli_read_hs(phba))
13384 /* Check if there is a deferred error condition is active */
13385 if ((HS_FFER1 & phba->work_hs) &&
13386 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
13387 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
13388 phba->hba_flag |= DEFER_ERATT;
13389 /* Clear all interrupt enable conditions */
13390 writel(0, phba->HCregaddr);
13391 readl(phba->HCregaddr);
13394 /* Set the driver HA work bitmap */
13395 phba->work_ha |= HA_ERATT;
13396 /* Indicate polling handles this ERATT */
13397 phba->hba_flag |= HBA_ERATT_HANDLED;
13403 /* Set the driver HS work bitmap */
13404 phba->work_hs |= UNPLUG_ERR;
13405 /* Set the driver HA work bitmap */
13406 phba->work_ha |= HA_ERATT;
13407 /* Indicate polling handles this ERATT */
13408 phba->hba_flag |= HBA_ERATT_HANDLED;
13413 * lpfc_sli4_eratt_read - read sli-4 error attention events
13414 * @phba: Pointer to HBA context.
13416 * This function is called to read the SLI4 device error attention registers
13417 * for possible error attention events. The caller must hold the hostlock
13418 * with spin_lock_irq().
13420 * This function returns 1 when there is Error Attention in the Host Attention
13421 * Register and returns 0 otherwise.
13424 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
13426 uint32_t uerr_sta_hi, uerr_sta_lo;
13427 uint32_t if_type, portsmphr;
13428 struct lpfc_register portstat_reg;
13432 * For now, use the SLI4 device internal unrecoverable error
13433 * registers for error attention. This can be changed later.
13435 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
13437 case LPFC_SLI_INTF_IF_TYPE_0:
13438 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
13440 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
13442 phba->work_hs |= UNPLUG_ERR;
13443 phba->work_ha |= HA_ERATT;
13444 phba->hba_flag |= HBA_ERATT_HANDLED;
13447 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
13448 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
13449 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13450 "1423 HBA Unrecoverable error: "
13451 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
13452 "ue_mask_lo_reg=0x%x, "
13453 "ue_mask_hi_reg=0x%x\n",
13454 uerr_sta_lo, uerr_sta_hi,
13455 phba->sli4_hba.ue_mask_lo,
13456 phba->sli4_hba.ue_mask_hi);
13457 phba->work_status[0] = uerr_sta_lo;
13458 phba->work_status[1] = uerr_sta_hi;
13459 phba->work_ha |= HA_ERATT;
13460 phba->hba_flag |= HBA_ERATT_HANDLED;
13464 case LPFC_SLI_INTF_IF_TYPE_2:
13465 case LPFC_SLI_INTF_IF_TYPE_6:
13466 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
13467 &portstat_reg.word0) ||
13468 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
13470 phba->work_hs |= UNPLUG_ERR;
13471 phba->work_ha |= HA_ERATT;
13472 phba->hba_flag |= HBA_ERATT_HANDLED;
13475 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
13476 phba->work_status[0] =
13477 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
13478 phba->work_status[1] =
13479 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
13480 logmask = LOG_TRACE_EVENT;
13481 if (phba->work_status[0] ==
13482 SLIPORT_ERR1_REG_ERR_CODE_2 &&
13483 phba->work_status[1] == SLIPORT_ERR2_REG_FW_RESTART)
13485 lpfc_printf_log(phba, KERN_ERR, logmask,
13486 "2885 Port Status Event: "
13487 "port status reg 0x%x, "
13488 "port smphr reg 0x%x, "
13489 "error 1=0x%x, error 2=0x%x\n",
13490 portstat_reg.word0,
13492 phba->work_status[0],
13493 phba->work_status[1]);
13494 phba->work_ha |= HA_ERATT;
13495 phba->hba_flag |= HBA_ERATT_HANDLED;
13499 case LPFC_SLI_INTF_IF_TYPE_1:
13501 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13502 "2886 HBA Error Attention on unsupported "
13503 "if type %d.", if_type);
13511 * lpfc_sli_check_eratt - check error attention events
13512 * @phba: Pointer to HBA context.
13514 * This function is called from timer soft interrupt context to check HBA's
13515 * error attention register bit for error attention events.
13517 * This function returns 1 when there is Error Attention in the Host Attention
13518 * Register and returns 0 otherwise.
13521 lpfc_sli_check_eratt(struct lpfc_hba *phba)
13525 /* If somebody is waiting to handle an eratt, don't process it
13526 * here. The brdkill function will do this.
13528 if (phba->link_flag & LS_IGNORE_ERATT)
13531 /* Check if interrupt handler handles this ERATT */
13532 spin_lock_irq(&phba->hbalock);
13533 if (phba->hba_flag & HBA_ERATT_HANDLED) {
13534 /* Interrupt handler has handled ERATT */
13535 spin_unlock_irq(&phba->hbalock);
13540 * If there is deferred error attention, do not check for error
13543 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
13544 spin_unlock_irq(&phba->hbalock);
13548 /* If PCI channel is offline, don't process it */
13549 if (unlikely(pci_channel_offline(phba->pcidev))) {
13550 spin_unlock_irq(&phba->hbalock);
13554 switch (phba->sli_rev) {
13555 case LPFC_SLI_REV2:
13556 case LPFC_SLI_REV3:
13557 /* Read chip Host Attention (HA) register */
13558 ha_copy = lpfc_sli_eratt_read(phba);
13560 case LPFC_SLI_REV4:
13561 /* Read device Uncoverable Error (UERR) registers */
13562 ha_copy = lpfc_sli4_eratt_read(phba);
13565 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13566 "0299 Invalid SLI revision (%d)\n",
13571 spin_unlock_irq(&phba->hbalock);
13577 * lpfc_intr_state_check - Check device state for interrupt handling
13578 * @phba: Pointer to HBA context.
13580 * This inline routine checks whether a device or its PCI slot is in a state
13581 * that the interrupt should be handled.
13583 * This function returns 0 if the device or the PCI slot is in a state that
13584 * interrupt should be handled, otherwise -EIO.
13587 lpfc_intr_state_check(struct lpfc_hba *phba)
13589 /* If the pci channel is offline, ignore all the interrupts */
13590 if (unlikely(pci_channel_offline(phba->pcidev)))
13593 /* Update device level interrupt statistics */
13594 phba->sli.slistat.sli_intr++;
13596 /* Ignore all interrupts during initialization. */
13597 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
13604 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
13605 * @irq: Interrupt number.
13606 * @dev_id: The device context pointer.
13608 * This function is directly called from the PCI layer as an interrupt
13609 * service routine when device with SLI-3 interface spec is enabled with
13610 * MSI-X multi-message interrupt mode and there are slow-path events in
13611 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
13612 * interrupt mode, this function is called as part of the device-level
13613 * interrupt handler. When the PCI slot is in error recovery or the HBA
13614 * is undergoing initialization, the interrupt handler will not process
13615 * the interrupt. The link attention and ELS ring attention events are
13616 * handled by the worker thread. The interrupt handler signals the worker
13617 * thread and returns for these events. This function is called without
13618 * any lock held. It gets the hbalock to access and update SLI data
13621 * This function returns IRQ_HANDLED when interrupt is handled else it
13622 * returns IRQ_NONE.
13625 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
13627 struct lpfc_hba *phba;
13628 uint32_t ha_copy, hc_copy;
13629 uint32_t work_ha_copy;
13630 unsigned long status;
13631 unsigned long iflag;
13634 MAILBOX_t *mbox, *pmbox;
13635 struct lpfc_vport *vport;
13636 struct lpfc_nodelist *ndlp;
13637 struct lpfc_dmabuf *mp;
13642 * Get the driver's phba structure from the dev_id and
13643 * assume the HBA is not interrupting.
13645 phba = (struct lpfc_hba *)dev_id;
13647 if (unlikely(!phba))
13651 * Stuff needs to be attented to when this function is invoked as an
13652 * individual interrupt handler in MSI-X multi-message interrupt mode
13654 if (phba->intr_type == MSIX) {
13655 /* Check device state for handling interrupt */
13656 if (lpfc_intr_state_check(phba))
13658 /* Need to read HA REG for slow-path events */
13659 spin_lock_irqsave(&phba->hbalock, iflag);
13660 if (lpfc_readl(phba->HAregaddr, &ha_copy))
13662 /* If somebody is waiting to handle an eratt don't process it
13663 * here. The brdkill function will do this.
13665 if (phba->link_flag & LS_IGNORE_ERATT)
13666 ha_copy &= ~HA_ERATT;
13667 /* Check the need for handling ERATT in interrupt handler */
13668 if (ha_copy & HA_ERATT) {
13669 if (phba->hba_flag & HBA_ERATT_HANDLED)
13670 /* ERATT polling has handled ERATT */
13671 ha_copy &= ~HA_ERATT;
13673 /* Indicate interrupt handler handles ERATT */
13674 phba->hba_flag |= HBA_ERATT_HANDLED;
13678 * If there is deferred error attention, do not check for any
13681 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
13682 spin_unlock_irqrestore(&phba->hbalock, iflag);
13686 /* Clear up only attention source related to slow-path */
13687 if (lpfc_readl(phba->HCregaddr, &hc_copy))
13690 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
13691 HC_LAINT_ENA | HC_ERINT_ENA),
13693 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
13695 writel(hc_copy, phba->HCregaddr);
13696 readl(phba->HAregaddr); /* flush */
13697 spin_unlock_irqrestore(&phba->hbalock, iflag);
13699 ha_copy = phba->ha_copy;
13701 work_ha_copy = ha_copy & phba->work_ha_mask;
13703 if (work_ha_copy) {
13704 if (work_ha_copy & HA_LATT) {
13705 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
13707 * Turn off Link Attention interrupts
13708 * until CLEAR_LA done
13710 spin_lock_irqsave(&phba->hbalock, iflag);
13711 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
13712 if (lpfc_readl(phba->HCregaddr, &control))
13714 control &= ~HC_LAINT_ENA;
13715 writel(control, phba->HCregaddr);
13716 readl(phba->HCregaddr); /* flush */
13717 spin_unlock_irqrestore(&phba->hbalock, iflag);
13720 work_ha_copy &= ~HA_LATT;
13723 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
13725 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
13726 * the only slow ring.
13728 status = (work_ha_copy &
13729 (HA_RXMASK << (4*LPFC_ELS_RING)));
13730 status >>= (4*LPFC_ELS_RING);
13731 if (status & HA_RXMASK) {
13732 spin_lock_irqsave(&phba->hbalock, iflag);
13733 if (lpfc_readl(phba->HCregaddr, &control))
13736 lpfc_debugfs_slow_ring_trc(phba,
13737 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
13739 (uint32_t)phba->sli.slistat.sli_intr);
13741 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
13742 lpfc_debugfs_slow_ring_trc(phba,
13743 "ISR Disable ring:"
13744 "pwork:x%x hawork:x%x wait:x%x",
13745 phba->work_ha, work_ha_copy,
13746 (uint32_t)((unsigned long)
13747 &phba->work_waitq));
13750 ~(HC_R0INT_ENA << LPFC_ELS_RING);
13751 writel(control, phba->HCregaddr);
13752 readl(phba->HCregaddr); /* flush */
13755 lpfc_debugfs_slow_ring_trc(phba,
13756 "ISR slow ring: pwork:"
13757 "x%x hawork:x%x wait:x%x",
13758 phba->work_ha, work_ha_copy,
13759 (uint32_t)((unsigned long)
13760 &phba->work_waitq));
13762 spin_unlock_irqrestore(&phba->hbalock, iflag);
13765 spin_lock_irqsave(&phba->hbalock, iflag);
13766 if (work_ha_copy & HA_ERATT) {
13767 if (lpfc_sli_read_hs(phba))
13770 * Check if there is a deferred error condition
13773 if ((HS_FFER1 & phba->work_hs) &&
13774 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
13775 HS_FFER6 | HS_FFER7 | HS_FFER8) &
13777 phba->hba_flag |= DEFER_ERATT;
13778 /* Clear all interrupt enable conditions */
13779 writel(0, phba->HCregaddr);
13780 readl(phba->HCregaddr);
13784 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
13785 pmb = phba->sli.mbox_active;
13786 pmbox = &pmb->u.mb;
13788 vport = pmb->vport;
13790 /* First check out the status word */
13791 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
13792 if (pmbox->mbxOwner != OWN_HOST) {
13793 spin_unlock_irqrestore(&phba->hbalock, iflag);
13795 * Stray Mailbox Interrupt, mbxCommand <cmd>
13796 * mbxStatus <status>
13798 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13799 "(%d):0304 Stray Mailbox "
13800 "Interrupt mbxCommand x%x "
13802 (vport ? vport->vpi : 0),
13805 /* clear mailbox attention bit */
13806 work_ha_copy &= ~HA_MBATT;
13808 phba->sli.mbox_active = NULL;
13809 spin_unlock_irqrestore(&phba->hbalock, iflag);
13810 phba->last_completion_time = jiffies;
13811 del_timer(&phba->sli.mbox_tmo);
13812 if (pmb->mbox_cmpl) {
13813 lpfc_sli_pcimem_bcopy(mbox, pmbox,
13815 if (pmb->out_ext_byte_len &&
13817 lpfc_sli_pcimem_bcopy(
13820 pmb->out_ext_byte_len);
13822 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
13823 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
13825 lpfc_debugfs_disc_trc(vport,
13826 LPFC_DISC_TRC_MBOX_VPORT,
13827 "MBOX dflt rpi: : "
13828 "status:x%x rpi:x%x",
13829 (uint32_t)pmbox->mbxStatus,
13830 pmbox->un.varWords[0], 0);
13832 if (!pmbox->mbxStatus) {
13833 mp = (struct lpfc_dmabuf *)
13835 ndlp = (struct lpfc_nodelist *)
13838 /* Reg_LOGIN of dflt RPI was
13839 * successful. new lets get
13840 * rid of the RPI using the
13841 * same mbox buffer.
13843 lpfc_unreg_login(phba,
13845 pmbox->un.varWords[0],
13848 lpfc_mbx_cmpl_dflt_rpi;
13850 pmb->ctx_ndlp = ndlp;
13851 pmb->vport = vport;
13852 rc = lpfc_sli_issue_mbox(phba,
13855 if (rc != MBX_BUSY)
13856 lpfc_printf_log(phba,
13859 "0350 rc should have"
13860 "been MBX_BUSY\n");
13861 if (rc != MBX_NOT_FINISHED)
13862 goto send_current_mbox;
13866 &phba->pport->work_port_lock,
13868 phba->pport->work_port_events &=
13870 spin_unlock_irqrestore(
13871 &phba->pport->work_port_lock,
13874 /* Do NOT queue MBX_HEARTBEAT to the worker
13875 * thread for processing.
13877 if (pmbox->mbxCommand == MBX_HEARTBEAT) {
13878 /* Process mbox now */
13879 phba->sli.mbox_active = NULL;
13880 phba->sli.sli_flag &=
13881 ~LPFC_SLI_MBOX_ACTIVE;
13882 if (pmb->mbox_cmpl)
13883 pmb->mbox_cmpl(phba, pmb);
13885 /* Queue to worker thread to process */
13886 lpfc_mbox_cmpl_put(phba, pmb);
13890 spin_unlock_irqrestore(&phba->hbalock, iflag);
13892 if ((work_ha_copy & HA_MBATT) &&
13893 (phba->sli.mbox_active == NULL)) {
13895 /* Process next mailbox command if there is one */
13897 rc = lpfc_sli_issue_mbox(phba, NULL,
13899 } while (rc == MBX_NOT_FINISHED);
13900 if (rc != MBX_SUCCESS)
13901 lpfc_printf_log(phba, KERN_ERR,
13903 "0349 rc should be "
13907 spin_lock_irqsave(&phba->hbalock, iflag);
13908 phba->work_ha |= work_ha_copy;
13909 spin_unlock_irqrestore(&phba->hbalock, iflag);
13910 lpfc_worker_wake_up(phba);
13912 return IRQ_HANDLED;
13914 spin_unlock_irqrestore(&phba->hbalock, iflag);
13915 return IRQ_HANDLED;
13917 } /* lpfc_sli_sp_intr_handler */
13920 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
13921 * @irq: Interrupt number.
13922 * @dev_id: The device context pointer.
13924 * This function is directly called from the PCI layer as an interrupt
13925 * service routine when device with SLI-3 interface spec is enabled with
13926 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
13927 * ring event in the HBA. However, when the device is enabled with either
13928 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13929 * device-level interrupt handler. When the PCI slot is in error recovery
13930 * or the HBA is undergoing initialization, the interrupt handler will not
13931 * process the interrupt. The SCSI FCP fast-path ring event are handled in
13932 * the intrrupt context. This function is called without any lock held.
13933 * It gets the hbalock to access and update SLI data structures.
13935 * This function returns IRQ_HANDLED when interrupt is handled else it
13936 * returns IRQ_NONE.
13939 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
13941 struct lpfc_hba *phba;
13943 unsigned long status;
13944 unsigned long iflag;
13945 struct lpfc_sli_ring *pring;
13947 /* Get the driver's phba structure from the dev_id and
13948 * assume the HBA is not interrupting.
13950 phba = (struct lpfc_hba *) dev_id;
13952 if (unlikely(!phba))
13956 * Stuff needs to be attented to when this function is invoked as an
13957 * individual interrupt handler in MSI-X multi-message interrupt mode
13959 if (phba->intr_type == MSIX) {
13960 /* Check device state for handling interrupt */
13961 if (lpfc_intr_state_check(phba))
13963 /* Need to read HA REG for FCP ring and other ring events */
13964 if (lpfc_readl(phba->HAregaddr, &ha_copy))
13965 return IRQ_HANDLED;
13966 /* Clear up only attention source related to fast-path */
13967 spin_lock_irqsave(&phba->hbalock, iflag);
13969 * If there is deferred error attention, do not check for
13972 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
13973 spin_unlock_irqrestore(&phba->hbalock, iflag);
13976 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
13978 readl(phba->HAregaddr); /* flush */
13979 spin_unlock_irqrestore(&phba->hbalock, iflag);
13981 ha_copy = phba->ha_copy;
13984 * Process all events on FCP ring. Take the optimized path for FCP IO.
13986 ha_copy &= ~(phba->work_ha_mask);
13988 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
13989 status >>= (4*LPFC_FCP_RING);
13990 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
13991 if (status & HA_RXMASK)
13992 lpfc_sli_handle_fast_ring_event(phba, pring, status);
13994 if (phba->cfg_multi_ring_support == 2) {
13996 * Process all events on extra ring. Take the optimized path
13997 * for extra ring IO.
13999 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
14000 status >>= (4*LPFC_EXTRA_RING);
14001 if (status & HA_RXMASK) {
14002 lpfc_sli_handle_fast_ring_event(phba,
14003 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
14007 return IRQ_HANDLED;
14008 } /* lpfc_sli_fp_intr_handler */
14011 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
14012 * @irq: Interrupt number.
14013 * @dev_id: The device context pointer.
14015 * This function is the HBA device-level interrupt handler to device with
14016 * SLI-3 interface spec, called from the PCI layer when either MSI or
14017 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
14018 * requires driver attention. This function invokes the slow-path interrupt
14019 * attention handling function and fast-path interrupt attention handling
14020 * function in turn to process the relevant HBA attention events. This
14021 * function is called without any lock held. It gets the hbalock to access
14022 * and update SLI data structures.
14024 * This function returns IRQ_HANDLED when interrupt is handled, else it
14025 * returns IRQ_NONE.
14028 lpfc_sli_intr_handler(int irq, void *dev_id)
14030 struct lpfc_hba *phba;
14031 irqreturn_t sp_irq_rc, fp_irq_rc;
14032 unsigned long status1, status2;
14036 * Get the driver's phba structure from the dev_id and
14037 * assume the HBA is not interrupting.
14039 phba = (struct lpfc_hba *) dev_id;
14041 if (unlikely(!phba))
14044 /* Check device state for handling interrupt */
14045 if (lpfc_intr_state_check(phba))
14048 spin_lock(&phba->hbalock);
14049 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
14050 spin_unlock(&phba->hbalock);
14051 return IRQ_HANDLED;
14054 if (unlikely(!phba->ha_copy)) {
14055 spin_unlock(&phba->hbalock);
14057 } else if (phba->ha_copy & HA_ERATT) {
14058 if (phba->hba_flag & HBA_ERATT_HANDLED)
14059 /* ERATT polling has handled ERATT */
14060 phba->ha_copy &= ~HA_ERATT;
14062 /* Indicate interrupt handler handles ERATT */
14063 phba->hba_flag |= HBA_ERATT_HANDLED;
14067 * If there is deferred error attention, do not check for any interrupt.
14069 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
14070 spin_unlock(&phba->hbalock);
14074 /* Clear attention sources except link and error attentions */
14075 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
14076 spin_unlock(&phba->hbalock);
14077 return IRQ_HANDLED;
14079 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
14080 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
14082 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
14083 writel(hc_copy, phba->HCregaddr);
14084 readl(phba->HAregaddr); /* flush */
14085 spin_unlock(&phba->hbalock);
14088 * Invokes slow-path host attention interrupt handling as appropriate.
14091 /* status of events with mailbox and link attention */
14092 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
14094 /* status of events with ELS ring */
14095 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
14096 status2 >>= (4*LPFC_ELS_RING);
14098 if (status1 || (status2 & HA_RXMASK))
14099 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
14101 sp_irq_rc = IRQ_NONE;
14104 * Invoke fast-path host attention interrupt handling as appropriate.
14107 /* status of events with FCP ring */
14108 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
14109 status1 >>= (4*LPFC_FCP_RING);
14111 /* status of events with extra ring */
14112 if (phba->cfg_multi_ring_support == 2) {
14113 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
14114 status2 >>= (4*LPFC_EXTRA_RING);
14118 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
14119 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
14121 fp_irq_rc = IRQ_NONE;
14123 /* Return device-level interrupt handling status */
14124 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
14125 } /* lpfc_sli_intr_handler */
14128 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
14129 * @phba: pointer to lpfc hba data structure.
14131 * This routine is invoked by the worker thread to process all the pending
14132 * SLI4 els abort xri events.
14134 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
14136 struct lpfc_cq_event *cq_event;
14137 unsigned long iflags;
14139 /* First, declare the els xri abort event has been handled */
14140 spin_lock_irqsave(&phba->hbalock, iflags);
14141 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
14142 spin_unlock_irqrestore(&phba->hbalock, iflags);
14144 /* Now, handle all the els xri abort events */
14145 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
14146 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
14147 /* Get the first event from the head of the event queue */
14148 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
14149 cq_event, struct lpfc_cq_event, list);
14150 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock,
14152 /* Notify aborted XRI for ELS work queue */
14153 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
14155 /* Free the event processed back to the free pool */
14156 lpfc_sli4_cq_event_release(phba, cq_event);
14157 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock,
14160 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
14164 * lpfc_sli4_els_preprocess_rspiocbq - Get response iocbq from els wcqe
14165 * @phba: Pointer to HBA context object.
14166 * @irspiocbq: Pointer to work-queue completion queue entry.
14168 * This routine handles an ELS work-queue completion event and construct
14169 * a pseudo response ELS IOCBQ from the SLI4 ELS WCQE for the common
14170 * discovery engine to handle.
14172 * Return: Pointer to the receive IOCBQ, NULL otherwise.
14174 static struct lpfc_iocbq *
14175 lpfc_sli4_els_preprocess_rspiocbq(struct lpfc_hba *phba,
14176 struct lpfc_iocbq *irspiocbq)
14178 struct lpfc_sli_ring *pring;
14179 struct lpfc_iocbq *cmdiocbq;
14180 struct lpfc_wcqe_complete *wcqe;
14181 unsigned long iflags;
14183 pring = lpfc_phba_elsring(phba);
14184 if (unlikely(!pring))
14187 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
14188 spin_lock_irqsave(&pring->ring_lock, iflags);
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 spin_unlock_irqrestore(&pring->ring_lock, iflags);
14195 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14196 "0386 ELS complete with no corresponding "
14197 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
14198 wcqe->word0, wcqe->total_data_placed,
14199 wcqe->parameter, wcqe->word3);
14200 lpfc_sli_release_iocbq(phba, irspiocbq);
14204 memcpy(&irspiocbq->wqe, &cmdiocbq->wqe, sizeof(union lpfc_wqe128));
14205 memcpy(&irspiocbq->wcqe_cmpl, wcqe, sizeof(*wcqe));
14207 /* Put the iocb back on the txcmplq */
14208 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
14209 spin_unlock_irqrestore(&pring->ring_lock, iflags);
14211 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
14212 spin_lock_irqsave(&phba->hbalock, iflags);
14213 irspiocbq->cmd_flag |= LPFC_EXCHANGE_BUSY;
14214 spin_unlock_irqrestore(&phba->hbalock, iflags);
14220 inline struct lpfc_cq_event *
14221 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
14223 struct lpfc_cq_event *cq_event;
14225 /* Allocate a new internal CQ_EVENT entry */
14226 cq_event = lpfc_sli4_cq_event_alloc(phba);
14228 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14229 "0602 Failed to alloc CQ_EVENT entry\n");
14233 /* Move the CQE into the event */
14234 memcpy(&cq_event->cqe, entry, size);
14239 * lpfc_sli4_sp_handle_async_event - Handle an asynchronous event
14240 * @phba: Pointer to HBA context object.
14241 * @mcqe: Pointer to mailbox completion queue entry.
14243 * This routine process a mailbox completion queue entry with asynchronous
14246 * Return: true if work posted to worker thread, otherwise false.
14249 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
14251 struct lpfc_cq_event *cq_event;
14252 unsigned long iflags;
14254 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
14255 "0392 Async Event: word0:x%x, word1:x%x, "
14256 "word2:x%x, word3:x%x\n", mcqe->word0,
14257 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
14259 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
14263 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
14264 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
14265 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
14267 /* Set the async event flag */
14268 spin_lock_irqsave(&phba->hbalock, iflags);
14269 phba->hba_flag |= ASYNC_EVENT;
14270 spin_unlock_irqrestore(&phba->hbalock, iflags);
14276 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
14277 * @phba: Pointer to HBA context object.
14278 * @mcqe: Pointer to mailbox completion queue entry.
14280 * This routine process a mailbox completion queue entry with mailbox
14281 * completion event.
14283 * Return: true if work posted to worker thread, otherwise false.
14286 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
14288 uint32_t mcqe_status;
14289 MAILBOX_t *mbox, *pmbox;
14290 struct lpfc_mqe *mqe;
14291 struct lpfc_vport *vport;
14292 struct lpfc_nodelist *ndlp;
14293 struct lpfc_dmabuf *mp;
14294 unsigned long iflags;
14296 bool workposted = false;
14299 /* If not a mailbox complete MCQE, out by checking mailbox consume */
14300 if (!bf_get(lpfc_trailer_completed, mcqe))
14301 goto out_no_mqe_complete;
14303 /* Get the reference to the active mbox command */
14304 spin_lock_irqsave(&phba->hbalock, iflags);
14305 pmb = phba->sli.mbox_active;
14306 if (unlikely(!pmb)) {
14307 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14308 "1832 No pending MBOX command to handle\n");
14309 spin_unlock_irqrestore(&phba->hbalock, iflags);
14310 goto out_no_mqe_complete;
14312 spin_unlock_irqrestore(&phba->hbalock, iflags);
14314 pmbox = (MAILBOX_t *)&pmb->u.mqe;
14316 vport = pmb->vport;
14318 /* Reset heartbeat timer */
14319 phba->last_completion_time = jiffies;
14320 del_timer(&phba->sli.mbox_tmo);
14322 /* Move mbox data to caller's mailbox region, do endian swapping */
14323 if (pmb->mbox_cmpl && mbox)
14324 lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
14327 * For mcqe errors, conditionally move a modified error code to
14328 * the mbox so that the error will not be missed.
14330 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
14331 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
14332 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
14333 bf_set(lpfc_mqe_status, mqe,
14334 (LPFC_MBX_ERROR_RANGE | mcqe_status));
14336 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
14337 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
14338 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
14339 "MBOX dflt rpi: status:x%x rpi:x%x",
14341 pmbox->un.varWords[0], 0);
14342 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
14343 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
14344 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
14346 /* Reg_LOGIN of dflt RPI was successful. Mark the
14347 * node as having an UNREG_LOGIN in progress to stop
14348 * an unsolicited PLOGI from the same NPortId from
14349 * starting another mailbox transaction.
14351 spin_lock_irqsave(&ndlp->lock, iflags);
14352 ndlp->nlp_flag |= NLP_UNREG_INP;
14353 spin_unlock_irqrestore(&ndlp->lock, iflags);
14354 lpfc_unreg_login(phba, vport->vpi,
14355 pmbox->un.varWords[0], pmb);
14356 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
14359 /* No reference taken here. This is a default
14360 * RPI reg/immediate unreg cycle. The reference was
14361 * taken in the reg rpi path and is released when
14362 * this mailbox completes.
14364 pmb->ctx_ndlp = ndlp;
14365 pmb->vport = vport;
14366 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
14367 if (rc != MBX_BUSY)
14368 lpfc_printf_log(phba, KERN_ERR,
14371 "have been MBX_BUSY\n");
14372 if (rc != MBX_NOT_FINISHED)
14373 goto send_current_mbox;
14376 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
14377 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
14378 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
14380 /* Do NOT queue MBX_HEARTBEAT to the worker thread for processing. */
14381 if (pmbox->mbxCommand == MBX_HEARTBEAT) {
14382 spin_lock_irqsave(&phba->hbalock, iflags);
14383 /* Release the mailbox command posting token */
14384 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
14385 phba->sli.mbox_active = NULL;
14386 if (bf_get(lpfc_trailer_consumed, mcqe))
14387 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
14388 spin_unlock_irqrestore(&phba->hbalock, iflags);
14390 /* Post the next mbox command, if there is one */
14391 lpfc_sli4_post_async_mbox(phba);
14393 /* Process cmpl now */
14394 if (pmb->mbox_cmpl)
14395 pmb->mbox_cmpl(phba, pmb);
14399 /* There is mailbox completion work to queue to the worker thread */
14400 spin_lock_irqsave(&phba->hbalock, iflags);
14401 __lpfc_mbox_cmpl_put(phba, pmb);
14402 phba->work_ha |= HA_MBATT;
14403 spin_unlock_irqrestore(&phba->hbalock, iflags);
14407 spin_lock_irqsave(&phba->hbalock, iflags);
14408 /* Release the mailbox command posting token */
14409 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
14410 /* Setting active mailbox pointer need to be in sync to flag clear */
14411 phba->sli.mbox_active = NULL;
14412 if (bf_get(lpfc_trailer_consumed, mcqe))
14413 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
14414 spin_unlock_irqrestore(&phba->hbalock, iflags);
14415 /* Wake up worker thread to post the next pending mailbox command */
14416 lpfc_worker_wake_up(phba);
14419 out_no_mqe_complete:
14420 spin_lock_irqsave(&phba->hbalock, iflags);
14421 if (bf_get(lpfc_trailer_consumed, mcqe))
14422 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
14423 spin_unlock_irqrestore(&phba->hbalock, iflags);
14428 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
14429 * @phba: Pointer to HBA context object.
14430 * @cq: Pointer to associated CQ
14431 * @cqe: Pointer to mailbox completion queue entry.
14433 * This routine process a mailbox completion queue entry, it invokes the
14434 * proper mailbox complete handling or asynchronous event handling routine
14435 * according to the MCQE's async bit.
14437 * Return: true if work posted to worker thread, otherwise false.
14440 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14441 struct lpfc_cqe *cqe)
14443 struct lpfc_mcqe mcqe;
14448 /* Copy the mailbox MCQE and convert endian order as needed */
14449 lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
14451 /* Invoke the proper event handling routine */
14452 if (!bf_get(lpfc_trailer_async, &mcqe))
14453 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
14455 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
14460 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
14461 * @phba: Pointer to HBA context object.
14462 * @cq: Pointer to associated CQ
14463 * @wcqe: Pointer to work-queue completion queue entry.
14465 * This routine handles an ELS work-queue completion event.
14467 * Return: true if work posted to worker thread, otherwise false.
14470 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14471 struct lpfc_wcqe_complete *wcqe)
14473 struct lpfc_iocbq *irspiocbq;
14474 unsigned long iflags;
14475 struct lpfc_sli_ring *pring = cq->pring;
14477 int txcmplq_cnt = 0;
14479 /* Check for response status */
14480 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
14481 /* Log the error status */
14482 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
14483 "0357 ELS CQE error: status=x%x: "
14484 "CQE: %08x %08x %08x %08x\n",
14485 bf_get(lpfc_wcqe_c_status, wcqe),
14486 wcqe->word0, wcqe->total_data_placed,
14487 wcqe->parameter, wcqe->word3);
14490 /* Get an irspiocbq for later ELS response processing use */
14491 irspiocbq = lpfc_sli_get_iocbq(phba);
14493 if (!list_empty(&pring->txq))
14495 if (!list_empty(&pring->txcmplq))
14497 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14498 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
14499 "els_txcmplq_cnt=%d\n",
14500 txq_cnt, phba->iocb_cnt,
14505 /* Save off the slow-path queue event for work thread to process */
14506 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
14507 spin_lock_irqsave(&phba->hbalock, iflags);
14508 list_add_tail(&irspiocbq->cq_event.list,
14509 &phba->sli4_hba.sp_queue_event);
14510 phba->hba_flag |= HBA_SP_QUEUE_EVT;
14511 spin_unlock_irqrestore(&phba->hbalock, iflags);
14517 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
14518 * @phba: Pointer to HBA context object.
14519 * @wcqe: Pointer to work-queue completion queue entry.
14521 * This routine handles slow-path WQ entry consumed event by invoking the
14522 * proper WQ release routine to the slow-path WQ.
14525 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
14526 struct lpfc_wcqe_release *wcqe)
14528 /* sanity check on queue memory */
14529 if (unlikely(!phba->sli4_hba.els_wq))
14531 /* Check for the slow-path ELS work queue */
14532 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
14533 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
14534 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
14536 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14537 "2579 Slow-path wqe consume event carries "
14538 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
14539 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
14540 phba->sli4_hba.els_wq->queue_id);
14544 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
14545 * @phba: Pointer to HBA context object.
14546 * @cq: Pointer to a WQ completion queue.
14547 * @wcqe: Pointer to work-queue completion queue entry.
14549 * This routine handles an XRI abort event.
14551 * Return: true if work posted to worker thread, otherwise false.
14554 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
14555 struct lpfc_queue *cq,
14556 struct sli4_wcqe_xri_aborted *wcqe)
14558 bool workposted = false;
14559 struct lpfc_cq_event *cq_event;
14560 unsigned long iflags;
14562 switch (cq->subtype) {
14564 lpfc_sli4_io_xri_aborted(phba, wcqe, cq->hdwq);
14565 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14566 /* Notify aborted XRI for NVME work queue */
14567 if (phba->nvmet_support)
14568 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
14570 workposted = false;
14572 case LPFC_NVME_LS: /* NVME LS uses ELS resources */
14574 cq_event = lpfc_cq_event_setup(phba, wcqe, sizeof(*wcqe));
14576 workposted = false;
14579 cq_event->hdwq = cq->hdwq;
14580 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock,
14582 list_add_tail(&cq_event->list,
14583 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
14584 /* Set the els xri abort event flag */
14585 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
14586 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock,
14591 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14592 "0603 Invalid CQ subtype %d: "
14593 "%08x %08x %08x %08x\n",
14594 cq->subtype, wcqe->word0, wcqe->parameter,
14595 wcqe->word2, wcqe->word3);
14596 workposted = false;
14602 #define FC_RCTL_MDS_DIAGS 0xF4
14605 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
14606 * @phba: Pointer to HBA context object.
14607 * @rcqe: Pointer to receive-queue completion queue entry.
14609 * This routine process a receive-queue completion queue entry.
14611 * Return: true if work posted to worker thread, otherwise false.
14614 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
14616 bool workposted = false;
14617 struct fc_frame_header *fc_hdr;
14618 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
14619 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
14620 struct lpfc_nvmet_tgtport *tgtp;
14621 struct hbq_dmabuf *dma_buf;
14622 uint32_t status, rq_id;
14623 unsigned long iflags;
14625 /* sanity check on queue memory */
14626 if (unlikely(!hrq) || unlikely(!drq))
14629 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
14630 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
14632 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
14633 if (rq_id != hrq->queue_id)
14636 status = bf_get(lpfc_rcqe_status, rcqe);
14638 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
14639 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14640 "2537 Receive Frame Truncated!!\n");
14642 case FC_STATUS_RQ_SUCCESS:
14643 spin_lock_irqsave(&phba->hbalock, iflags);
14644 lpfc_sli4_rq_release(hrq, drq);
14645 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
14647 hrq->RQ_no_buf_found++;
14648 spin_unlock_irqrestore(&phba->hbalock, iflags);
14652 hrq->RQ_buf_posted--;
14653 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
14655 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
14657 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
14658 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
14659 spin_unlock_irqrestore(&phba->hbalock, iflags);
14660 /* Handle MDS Loopback frames */
14661 if (!(phba->pport->load_flag & FC_UNLOADING))
14662 lpfc_sli4_handle_mds_loopback(phba->pport,
14665 lpfc_in_buf_free(phba, &dma_buf->dbuf);
14669 /* save off the frame for the work thread to process */
14670 list_add_tail(&dma_buf->cq_event.list,
14671 &phba->sli4_hba.sp_queue_event);
14672 /* Frame received */
14673 phba->hba_flag |= HBA_SP_QUEUE_EVT;
14674 spin_unlock_irqrestore(&phba->hbalock, iflags);
14677 case FC_STATUS_INSUFF_BUF_FRM_DISC:
14678 if (phba->nvmet_support) {
14679 tgtp = phba->targetport->private;
14680 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14681 "6402 RQE Error x%x, posted %d err_cnt "
14683 status, hrq->RQ_buf_posted,
14684 hrq->RQ_no_posted_buf,
14685 atomic_read(&tgtp->rcv_fcp_cmd_in),
14686 atomic_read(&tgtp->rcv_fcp_cmd_out),
14687 atomic_read(&tgtp->xmt_fcp_release));
14691 case FC_STATUS_INSUFF_BUF_NEED_BUF:
14692 hrq->RQ_no_posted_buf++;
14693 /* Post more buffers if possible */
14694 spin_lock_irqsave(&phba->hbalock, iflags);
14695 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
14696 spin_unlock_irqrestore(&phba->hbalock, iflags);
14699 case FC_STATUS_RQ_DMA_FAILURE:
14700 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14701 "2564 RQE DMA Error x%x, x%08x x%08x x%08x "
14703 status, rcqe->word0, rcqe->word1,
14704 rcqe->word2, rcqe->word3);
14706 /* If IV set, no further recovery */
14707 if (bf_get(lpfc_rcqe_iv, rcqe))
14710 /* recycle consumed resource */
14711 spin_lock_irqsave(&phba->hbalock, iflags);
14712 lpfc_sli4_rq_release(hrq, drq);
14713 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
14715 hrq->RQ_no_buf_found++;
14716 spin_unlock_irqrestore(&phba->hbalock, iflags);
14720 hrq->RQ_buf_posted--;
14721 spin_unlock_irqrestore(&phba->hbalock, iflags);
14722 lpfc_in_buf_free(phba, &dma_buf->dbuf);
14725 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14726 "2565 Unexpected RQE Status x%x, w0-3 x%08x "
14727 "x%08x x%08x x%08x\n",
14728 status, rcqe->word0, rcqe->word1,
14729 rcqe->word2, rcqe->word3);
14737 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
14738 * @phba: Pointer to HBA context object.
14739 * @cq: Pointer to the completion queue.
14740 * @cqe: Pointer to a completion queue entry.
14742 * This routine process a slow-path work-queue or receive queue completion queue
14745 * Return: true if work posted to worker thread, otherwise false.
14748 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14749 struct lpfc_cqe *cqe)
14751 struct lpfc_cqe cqevt;
14752 bool workposted = false;
14754 /* Copy the work queue CQE and convert endian order if needed */
14755 lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
14757 /* Check and process for different type of WCQE and dispatch */
14758 switch (bf_get(lpfc_cqe_code, &cqevt)) {
14759 case CQE_CODE_COMPL_WQE:
14760 /* Process the WQ/RQ complete event */
14761 phba->last_completion_time = jiffies;
14762 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
14763 (struct lpfc_wcqe_complete *)&cqevt);
14765 case CQE_CODE_RELEASE_WQE:
14766 /* Process the WQ release event */
14767 lpfc_sli4_sp_handle_rel_wcqe(phba,
14768 (struct lpfc_wcqe_release *)&cqevt);
14770 case CQE_CODE_XRI_ABORTED:
14771 /* Process the WQ XRI abort event */
14772 phba->last_completion_time = jiffies;
14773 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
14774 (struct sli4_wcqe_xri_aborted *)&cqevt);
14776 case CQE_CODE_RECEIVE:
14777 case CQE_CODE_RECEIVE_V1:
14778 /* Process the RQ event */
14779 phba->last_completion_time = jiffies;
14780 workposted = lpfc_sli4_sp_handle_rcqe(phba,
14781 (struct lpfc_rcqe *)&cqevt);
14784 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14785 "0388 Not a valid WCQE code: x%x\n",
14786 bf_get(lpfc_cqe_code, &cqevt));
14793 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
14794 * @phba: Pointer to HBA context object.
14795 * @eqe: Pointer to fast-path event queue entry.
14796 * @speq: Pointer to slow-path event queue.
14798 * This routine process a event queue entry from the slow-path event queue.
14799 * It will check the MajorCode and MinorCode to determine this is for a
14800 * completion event on a completion queue, if not, an error shall be logged
14801 * and just return. Otherwise, it will get to the corresponding completion
14802 * queue and process all the entries on that completion queue, rearm the
14803 * completion queue, and then return.
14807 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
14808 struct lpfc_queue *speq)
14810 struct lpfc_queue *cq = NULL, *childq;
14814 /* Get the reference to the corresponding CQ */
14815 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14817 list_for_each_entry(childq, &speq->child_list, list) {
14818 if (childq->queue_id == cqid) {
14823 if (unlikely(!cq)) {
14824 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
14825 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14826 "0365 Slow-path CQ identifier "
14827 "(%d) does not exist\n", cqid);
14831 /* Save EQ associated with this CQ */
14832 cq->assoc_qp = speq;
14834 if (is_kdump_kernel())
14835 ret = queue_work(phba->wq, &cq->spwork);
14837 ret = queue_work_on(cq->chann, phba->wq, &cq->spwork);
14840 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14841 "0390 Cannot schedule queue work "
14842 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14843 cqid, cq->queue_id, raw_smp_processor_id());
14847 * __lpfc_sli4_process_cq - Process elements of a CQ
14848 * @phba: Pointer to HBA context object.
14849 * @cq: Pointer to CQ to be processed
14850 * @handler: Routine to process each cqe
14851 * @delay: Pointer to usdelay to set in case of rescheduling of the handler
14853 * This routine processes completion queue entries in a CQ. While a valid
14854 * queue element is found, the handler is called. During processing checks
14855 * are made for periodic doorbell writes to let the hardware know of
14856 * element consumption.
14858 * If the max limit on cqes to process is hit, or there are no more valid
14859 * entries, the loop stops. If we processed a sufficient number of elements,
14860 * meaning there is sufficient load, rather than rearming and generating
14861 * another interrupt, a cq rescheduling delay will be set. A delay of 0
14862 * indicates no rescheduling.
14864 * Returns True if work scheduled, False otherwise.
14867 __lpfc_sli4_process_cq(struct lpfc_hba *phba, struct lpfc_queue *cq,
14868 bool (*handler)(struct lpfc_hba *, struct lpfc_queue *,
14869 struct lpfc_cqe *), unsigned long *delay)
14871 struct lpfc_cqe *cqe;
14872 bool workposted = false;
14873 int count = 0, consumed = 0;
14876 /* default - no reschedule */
14879 if (cmpxchg(&cq->queue_claimed, 0, 1) != 0)
14880 goto rearm_and_exit;
14882 /* Process all the entries to the CQ */
14884 cqe = lpfc_sli4_cq_get(cq);
14886 workposted |= handler(phba, cq, cqe);
14887 __lpfc_sli4_consume_cqe(phba, cq, cqe);
14890 if (!(++count % cq->max_proc_limit))
14893 if (!(count % cq->notify_interval)) {
14894 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
14897 cq->assoc_qp->q_flag |= HBA_EQ_DELAY_CHK;
14900 if (count == LPFC_NVMET_CQ_NOTIFY)
14901 cq->q_flag |= HBA_NVMET_CQ_NOTIFY;
14903 cqe = lpfc_sli4_cq_get(cq);
14905 if (count >= phba->cfg_cq_poll_threshold) {
14910 /* Track the max number of CQEs processed in 1 EQ */
14911 if (count > cq->CQ_max_cqe)
14912 cq->CQ_max_cqe = count;
14914 cq->assoc_qp->EQ_cqe_cnt += count;
14916 /* Catch the no cq entry condition */
14917 if (unlikely(count == 0))
14918 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
14919 "0369 No entry from completion queue "
14920 "qid=%d\n", cq->queue_id);
14922 xchg(&cq->queue_claimed, 0);
14925 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
14926 arm ? LPFC_QUEUE_REARM : LPFC_QUEUE_NOARM);
14932 * __lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
14933 * @cq: pointer to CQ to process
14935 * This routine calls the cq processing routine with a handler specific
14936 * to the type of queue bound to it.
14938 * The CQ routine returns two values: the first is the calling status,
14939 * which indicates whether work was queued to the background discovery
14940 * thread. If true, the routine should wakeup the discovery thread;
14941 * the second is the delay parameter. If non-zero, rather than rearming
14942 * the CQ and yet another interrupt, the CQ handler should be queued so
14943 * that it is processed in a subsequent polling action. The value of
14944 * the delay indicates when to reschedule it.
14947 __lpfc_sli4_sp_process_cq(struct lpfc_queue *cq)
14949 struct lpfc_hba *phba = cq->phba;
14950 unsigned long delay;
14951 bool workposted = false;
14954 /* Process and rearm the CQ */
14955 switch (cq->type) {
14957 workposted |= __lpfc_sli4_process_cq(phba, cq,
14958 lpfc_sli4_sp_handle_mcqe,
14962 if (cq->subtype == LPFC_IO)
14963 workposted |= __lpfc_sli4_process_cq(phba, cq,
14964 lpfc_sli4_fp_handle_cqe,
14967 workposted |= __lpfc_sli4_process_cq(phba, cq,
14968 lpfc_sli4_sp_handle_cqe,
14972 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14973 "0370 Invalid completion queue type (%d)\n",
14979 if (is_kdump_kernel())
14980 ret = queue_delayed_work(phba->wq, &cq->sched_spwork,
14983 ret = queue_delayed_work_on(cq->chann, phba->wq,
14984 &cq->sched_spwork, delay);
14986 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14987 "0394 Cannot schedule queue work "
14988 "for cqid=%d on CPU %d\n",
14989 cq->queue_id, cq->chann);
14992 /* wake up worker thread if there are works to be done */
14994 lpfc_worker_wake_up(phba);
14998 * lpfc_sli4_sp_process_cq - slow-path work handler when started by
15000 * @work: pointer to work element
15002 * translates from the work handler and calls the slow-path handler.
15005 lpfc_sli4_sp_process_cq(struct work_struct *work)
15007 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, spwork);
15009 __lpfc_sli4_sp_process_cq(cq);
15013 * lpfc_sli4_dly_sp_process_cq - slow-path work handler when started by timer
15014 * @work: pointer to work element
15016 * translates from the work handler and calls the slow-path handler.
15019 lpfc_sli4_dly_sp_process_cq(struct work_struct *work)
15021 struct lpfc_queue *cq = container_of(to_delayed_work(work),
15022 struct lpfc_queue, sched_spwork);
15024 __lpfc_sli4_sp_process_cq(cq);
15028 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
15029 * @phba: Pointer to HBA context object.
15030 * @cq: Pointer to associated CQ
15031 * @wcqe: Pointer to work-queue completion queue entry.
15033 * This routine process a fast-path work queue completion entry from fast-path
15034 * event queue for FCP command response completion.
15037 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
15038 struct lpfc_wcqe_complete *wcqe)
15040 struct lpfc_sli_ring *pring = cq->pring;
15041 struct lpfc_iocbq *cmdiocbq;
15042 unsigned long iflags;
15044 /* Check for response status */
15045 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
15046 /* If resource errors reported from HBA, reduce queue
15047 * depth of the SCSI device.
15049 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
15050 IOSTAT_LOCAL_REJECT)) &&
15051 ((wcqe->parameter & IOERR_PARAM_MASK) ==
15052 IOERR_NO_RESOURCES))
15053 phba->lpfc_rampdown_queue_depth(phba);
15055 /* Log the cmpl status */
15056 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
15057 "0373 FCP CQE cmpl: status=x%x: "
15058 "CQE: %08x %08x %08x %08x\n",
15059 bf_get(lpfc_wcqe_c_status, wcqe),
15060 wcqe->word0, wcqe->total_data_placed,
15061 wcqe->parameter, wcqe->word3);
15064 /* Look up the FCP command IOCB and create pseudo response IOCB */
15065 spin_lock_irqsave(&pring->ring_lock, iflags);
15066 pring->stats.iocb_event++;
15067 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
15068 bf_get(lpfc_wcqe_c_request_tag, wcqe));
15069 spin_unlock_irqrestore(&pring->ring_lock, iflags);
15070 if (unlikely(!cmdiocbq)) {
15071 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15072 "0374 FCP complete with no corresponding "
15073 "cmdiocb: iotag (%d)\n",
15074 bf_get(lpfc_wcqe_c_request_tag, wcqe));
15077 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
15078 cmdiocbq->isr_timestamp = cq->isr_timestamp;
15080 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
15081 spin_lock_irqsave(&phba->hbalock, iflags);
15082 cmdiocbq->cmd_flag |= LPFC_EXCHANGE_BUSY;
15083 spin_unlock_irqrestore(&phba->hbalock, iflags);
15086 if (cmdiocbq->cmd_cmpl) {
15087 /* For FCP the flag is cleared in cmd_cmpl */
15088 if (!(cmdiocbq->cmd_flag & LPFC_IO_FCP) &&
15089 cmdiocbq->cmd_flag & LPFC_DRIVER_ABORTED) {
15090 spin_lock_irqsave(&phba->hbalock, iflags);
15091 cmdiocbq->cmd_flag &= ~LPFC_DRIVER_ABORTED;
15092 spin_unlock_irqrestore(&phba->hbalock, iflags);
15095 /* Pass the cmd_iocb and the wcqe to the upper layer */
15096 memcpy(&cmdiocbq->wcqe_cmpl, wcqe,
15097 sizeof(struct lpfc_wcqe_complete));
15098 cmdiocbq->cmd_cmpl(phba, cmdiocbq, cmdiocbq);
15100 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15101 "0375 FCP cmdiocb not callback function "
15103 bf_get(lpfc_wcqe_c_request_tag, wcqe));
15108 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
15109 * @phba: Pointer to HBA context object.
15110 * @cq: Pointer to completion queue.
15111 * @wcqe: Pointer to work-queue completion queue entry.
15113 * This routine handles an fast-path WQ entry consumed event by invoking the
15114 * proper WQ release routine to the slow-path WQ.
15117 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
15118 struct lpfc_wcqe_release *wcqe)
15120 struct lpfc_queue *childwq;
15121 bool wqid_matched = false;
15124 /* Check for fast-path FCP work queue release */
15125 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
15126 list_for_each_entry(childwq, &cq->child_list, list) {
15127 if (childwq->queue_id == hba_wqid) {
15128 lpfc_sli4_wq_release(childwq,
15129 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
15130 if (childwq->q_flag & HBA_NVMET_WQFULL)
15131 lpfc_nvmet_wqfull_process(phba, childwq);
15132 wqid_matched = true;
15136 /* Report warning log message if no match found */
15137 if (wqid_matched != true)
15138 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15139 "2580 Fast-path wqe consume event carries "
15140 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
15144 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
15145 * @phba: Pointer to HBA context object.
15146 * @cq: Pointer to completion queue.
15147 * @rcqe: Pointer to receive-queue completion queue entry.
15149 * This routine process a receive-queue completion queue entry.
15151 * Return: true if work posted to worker thread, otherwise false.
15154 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
15155 struct lpfc_rcqe *rcqe)
15157 bool workposted = false;
15158 struct lpfc_queue *hrq;
15159 struct lpfc_queue *drq;
15160 struct rqb_dmabuf *dma_buf;
15161 struct fc_frame_header *fc_hdr;
15162 struct lpfc_nvmet_tgtport *tgtp;
15163 uint32_t status, rq_id;
15164 unsigned long iflags;
15165 uint32_t fctl, idx;
15167 if ((phba->nvmet_support == 0) ||
15168 (phba->sli4_hba.nvmet_cqset == NULL))
15171 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
15172 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
15173 drq = phba->sli4_hba.nvmet_mrq_data[idx];
15175 /* sanity check on queue memory */
15176 if (unlikely(!hrq) || unlikely(!drq))
15179 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
15180 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
15182 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
15184 if ((phba->nvmet_support == 0) ||
15185 (rq_id != hrq->queue_id))
15188 status = bf_get(lpfc_rcqe_status, rcqe);
15190 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
15191 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15192 "6126 Receive Frame Truncated!!\n");
15194 case FC_STATUS_RQ_SUCCESS:
15195 spin_lock_irqsave(&phba->hbalock, iflags);
15196 lpfc_sli4_rq_release(hrq, drq);
15197 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
15199 hrq->RQ_no_buf_found++;
15200 spin_unlock_irqrestore(&phba->hbalock, iflags);
15203 spin_unlock_irqrestore(&phba->hbalock, iflags);
15205 hrq->RQ_buf_posted--;
15206 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
15208 /* Just some basic sanity checks on FCP Command frame */
15209 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
15210 fc_hdr->fh_f_ctl[1] << 8 |
15211 fc_hdr->fh_f_ctl[2]);
15213 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
15214 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
15215 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
15218 if (fc_hdr->fh_type == FC_TYPE_FCP) {
15219 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
15220 lpfc_nvmet_unsol_fcp_event(
15221 phba, idx, dma_buf, cq->isr_timestamp,
15222 cq->q_flag & HBA_NVMET_CQ_NOTIFY);
15226 lpfc_rq_buf_free(phba, &dma_buf->hbuf);
15228 case FC_STATUS_INSUFF_BUF_FRM_DISC:
15229 if (phba->nvmet_support) {
15230 tgtp = phba->targetport->private;
15231 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15232 "6401 RQE Error x%x, posted %d err_cnt "
15234 status, hrq->RQ_buf_posted,
15235 hrq->RQ_no_posted_buf,
15236 atomic_read(&tgtp->rcv_fcp_cmd_in),
15237 atomic_read(&tgtp->rcv_fcp_cmd_out),
15238 atomic_read(&tgtp->xmt_fcp_release));
15242 case FC_STATUS_INSUFF_BUF_NEED_BUF:
15243 hrq->RQ_no_posted_buf++;
15244 /* Post more buffers if possible */
15246 case FC_STATUS_RQ_DMA_FAILURE:
15247 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15248 "2575 RQE DMA Error x%x, x%08x x%08x x%08x "
15250 status, rcqe->word0, rcqe->word1,
15251 rcqe->word2, rcqe->word3);
15253 /* If IV set, no further recovery */
15254 if (bf_get(lpfc_rcqe_iv, rcqe))
15257 /* recycle consumed resource */
15258 spin_lock_irqsave(&phba->hbalock, iflags);
15259 lpfc_sli4_rq_release(hrq, drq);
15260 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
15262 hrq->RQ_no_buf_found++;
15263 spin_unlock_irqrestore(&phba->hbalock, iflags);
15267 hrq->RQ_buf_posted--;
15268 spin_unlock_irqrestore(&phba->hbalock, iflags);
15269 lpfc_rq_buf_free(phba, &dma_buf->hbuf);
15272 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15273 "2576 Unexpected RQE Status x%x, w0-3 x%08x "
15274 "x%08x x%08x x%08x\n",
15275 status, rcqe->word0, rcqe->word1,
15276 rcqe->word2, rcqe->word3);
15284 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
15285 * @phba: adapter with cq
15286 * @cq: Pointer to the completion queue.
15287 * @cqe: Pointer to fast-path completion queue entry.
15289 * This routine process a fast-path work queue completion entry from fast-path
15290 * event queue for FCP command response completion.
15292 * Return: true if work posted to worker thread, otherwise false.
15295 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
15296 struct lpfc_cqe *cqe)
15298 struct lpfc_wcqe_release wcqe;
15299 bool workposted = false;
15301 /* Copy the work queue CQE and convert endian order if needed */
15302 lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
15304 /* Check and process for different type of WCQE and dispatch */
15305 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
15306 case CQE_CODE_COMPL_WQE:
15307 case CQE_CODE_NVME_ERSP:
15309 /* Process the WQ complete event */
15310 phba->last_completion_time = jiffies;
15311 if (cq->subtype == LPFC_IO || cq->subtype == LPFC_NVME_LS)
15312 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
15313 (struct lpfc_wcqe_complete *)&wcqe);
15315 case CQE_CODE_RELEASE_WQE:
15316 cq->CQ_release_wqe++;
15317 /* Process the WQ release event */
15318 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
15319 (struct lpfc_wcqe_release *)&wcqe);
15321 case CQE_CODE_XRI_ABORTED:
15322 cq->CQ_xri_aborted++;
15323 /* Process the WQ XRI abort event */
15324 phba->last_completion_time = jiffies;
15325 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
15326 (struct sli4_wcqe_xri_aborted *)&wcqe);
15328 case CQE_CODE_RECEIVE_V1:
15329 case CQE_CODE_RECEIVE:
15330 phba->last_completion_time = jiffies;
15331 if (cq->subtype == LPFC_NVMET) {
15332 workposted = lpfc_sli4_nvmet_handle_rcqe(
15333 phba, cq, (struct lpfc_rcqe *)&wcqe);
15337 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15338 "0144 Not a valid CQE code: x%x\n",
15339 bf_get(lpfc_wcqe_c_code, &wcqe));
15346 * __lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
15347 * @cq: Pointer to CQ to be processed
15349 * This routine calls the cq processing routine with the handler for
15352 * The CQ routine returns two values: the first is the calling status,
15353 * which indicates whether work was queued to the background discovery
15354 * thread. If true, the routine should wakeup the discovery thread;
15355 * the second is the delay parameter. If non-zero, rather than rearming
15356 * the CQ and yet another interrupt, the CQ handler should be queued so
15357 * that it is processed in a subsequent polling action. The value of
15358 * the delay indicates when to reschedule it.
15361 __lpfc_sli4_hba_process_cq(struct lpfc_queue *cq)
15363 struct lpfc_hba *phba = cq->phba;
15364 unsigned long delay;
15365 bool workposted = false;
15368 /* process and rearm the CQ */
15369 workposted |= __lpfc_sli4_process_cq(phba, cq, lpfc_sli4_fp_handle_cqe,
15373 if (is_kdump_kernel())
15374 ret = queue_delayed_work(phba->wq, &cq->sched_irqwork,
15377 ret = queue_delayed_work_on(cq->chann, phba->wq,
15378 &cq->sched_irqwork, delay);
15380 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15381 "0367 Cannot schedule queue work "
15382 "for cqid=%d on CPU %d\n",
15383 cq->queue_id, cq->chann);
15386 /* wake up worker thread if there are works to be done */
15388 lpfc_worker_wake_up(phba);
15392 * lpfc_sli4_hba_process_cq - fast-path work handler when started by
15394 * @work: pointer to work element
15396 * translates from the work handler and calls the fast-path handler.
15399 lpfc_sli4_hba_process_cq(struct work_struct *work)
15401 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, irqwork);
15403 __lpfc_sli4_hba_process_cq(cq);
15407 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
15408 * @phba: Pointer to HBA context object.
15409 * @eq: Pointer to the queue structure.
15410 * @eqe: Pointer to fast-path event queue entry.
15411 * @poll_mode: poll_mode to execute processing the cq.
15413 * This routine process a event queue entry from the fast-path event queue.
15414 * It will check the MajorCode and MinorCode to determine this is for a
15415 * completion event on a completion queue, if not, an error shall be logged
15416 * and just return. Otherwise, it will get to the corresponding completion
15417 * queue and process all the entries on the completion queue, rearm the
15418 * completion queue, and then return.
15421 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
15422 struct lpfc_eqe *eqe, enum lpfc_poll_mode poll_mode)
15424 struct lpfc_queue *cq = NULL;
15425 uint32_t qidx = eq->hdwq;
15429 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
15430 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15431 "0366 Not a valid completion "
15432 "event: majorcode=x%x, minorcode=x%x\n",
15433 bf_get_le32(lpfc_eqe_major_code, eqe),
15434 bf_get_le32(lpfc_eqe_minor_code, eqe));
15438 /* Get the reference to the corresponding CQ */
15439 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
15441 /* Use the fast lookup method first */
15442 if (cqid <= phba->sli4_hba.cq_max) {
15443 cq = phba->sli4_hba.cq_lookup[cqid];
15448 /* Next check for NVMET completion */
15449 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
15450 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
15451 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
15452 /* Process NVMET unsol rcv */
15453 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
15458 if (phba->sli4_hba.nvmels_cq &&
15459 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
15460 /* Process NVME unsol rcv */
15461 cq = phba->sli4_hba.nvmels_cq;
15464 /* Otherwise this is a Slow path event */
15466 lpfc_sli4_sp_handle_eqe(phba, eqe,
15467 phba->sli4_hba.hdwq[qidx].hba_eq);
15472 if (unlikely(cqid != cq->queue_id)) {
15473 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15474 "0368 Miss-matched fast-path completion "
15475 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
15476 cqid, cq->queue_id);
15481 #if defined(CONFIG_SCSI_LPFC_DEBUG_FS)
15482 if (phba->ktime_on)
15483 cq->isr_timestamp = ktime_get_ns();
15485 cq->isr_timestamp = 0;
15488 switch (poll_mode) {
15489 case LPFC_THREADED_IRQ:
15490 __lpfc_sli4_hba_process_cq(cq);
15492 case LPFC_QUEUE_WORK:
15494 if (is_kdump_kernel())
15495 ret = queue_work(phba->wq, &cq->irqwork);
15497 ret = queue_work_on(cq->chann, phba->wq, &cq->irqwork);
15499 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15500 "0383 Cannot schedule queue work "
15501 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
15502 cqid, cq->queue_id,
15503 raw_smp_processor_id());
15509 * lpfc_sli4_dly_hba_process_cq - fast-path work handler when started by timer
15510 * @work: pointer to work element
15512 * translates from the work handler and calls the fast-path handler.
15515 lpfc_sli4_dly_hba_process_cq(struct work_struct *work)
15517 struct lpfc_queue *cq = container_of(to_delayed_work(work),
15518 struct lpfc_queue, sched_irqwork);
15520 __lpfc_sli4_hba_process_cq(cq);
15524 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
15525 * @irq: Interrupt number.
15526 * @dev_id: The device context pointer.
15528 * This function is directly called from the PCI layer as an interrupt
15529 * service routine when device with SLI-4 interface spec is enabled with
15530 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
15531 * ring event in the HBA. However, when the device is enabled with either
15532 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
15533 * device-level interrupt handler. When the PCI slot is in error recovery
15534 * or the HBA is undergoing initialization, the interrupt handler will not
15535 * process the interrupt. The SCSI FCP fast-path ring event are handled in
15536 * the intrrupt context. This function is called without any lock held.
15537 * It gets the hbalock to access and update SLI data structures. Note that,
15538 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
15539 * equal to that of FCP CQ index.
15541 * The link attention and ELS ring attention events are handled
15542 * by the worker thread. The interrupt handler signals the worker thread
15543 * and returns for these events. This function is called without any lock
15544 * held. It gets the hbalock to access and update SLI data structures.
15546 * This function returns IRQ_HANDLED when interrupt is handled, IRQ_WAKE_THREAD
15547 * when interrupt is scheduled to be handled from a threaded irq context, or
15548 * else returns IRQ_NONE.
15551 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
15553 struct lpfc_hba *phba;
15554 struct lpfc_hba_eq_hdl *hba_eq_hdl;
15555 struct lpfc_queue *fpeq;
15556 unsigned long iflag;
15559 struct lpfc_eq_intr_info *eqi;
15561 /* Get the driver's phba structure from the dev_id */
15562 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
15563 phba = hba_eq_hdl->phba;
15564 hba_eqidx = hba_eq_hdl->idx;
15566 if (unlikely(!phba))
15568 if (unlikely(!phba->sli4_hba.hdwq))
15571 /* Get to the EQ struct associated with this vector */
15572 fpeq = phba->sli4_hba.hba_eq_hdl[hba_eqidx].eq;
15573 if (unlikely(!fpeq))
15576 /* Check device state for handling interrupt */
15577 if (unlikely(lpfc_intr_state_check(phba))) {
15578 /* Check again for link_state with lock held */
15579 spin_lock_irqsave(&phba->hbalock, iflag);
15580 if (phba->link_state < LPFC_LINK_DOWN)
15581 /* Flush, clear interrupt, and rearm the EQ */
15582 lpfc_sli4_eqcq_flush(phba, fpeq);
15583 spin_unlock_irqrestore(&phba->hbalock, iflag);
15587 switch (fpeq->poll_mode) {
15588 case LPFC_THREADED_IRQ:
15589 /* CGN mgmt is mutually exclusive from irq processing */
15590 if (phba->cmf_active_mode == LPFC_CFG_OFF)
15591 return IRQ_WAKE_THREAD;
15593 case LPFC_QUEUE_WORK:
15595 eqi = this_cpu_ptr(phba->sli4_hba.eq_info);
15598 fpeq->last_cpu = raw_smp_processor_id();
15600 if (eqi->icnt > LPFC_EQD_ISR_TRIGGER &&
15601 fpeq->q_flag & HBA_EQ_DELAY_CHK &&
15602 phba->cfg_auto_imax &&
15603 fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
15604 phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
15605 lpfc_sli4_mod_hba_eq_delay(phba, fpeq,
15606 LPFC_MAX_AUTO_EQ_DELAY);
15608 /* process and rearm the EQ */
15609 ecount = lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM,
15612 if (unlikely(ecount == 0)) {
15613 fpeq->EQ_no_entry++;
15614 if (phba->intr_type == MSIX)
15615 /* MSI-X treated interrupt served as no EQ share INT */
15616 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15617 "0358 MSI-X interrupt with no EQE\n");
15619 /* Non MSI-X treated on interrupt as EQ share INT */
15624 return IRQ_HANDLED;
15625 } /* lpfc_sli4_hba_intr_handler */
15628 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
15629 * @irq: Interrupt number.
15630 * @dev_id: The device context pointer.
15632 * This function is the device-level interrupt handler to device with SLI-4
15633 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
15634 * interrupt mode is enabled and there is an event in the HBA which requires
15635 * driver attention. This function invokes the slow-path interrupt attention
15636 * handling function and fast-path interrupt attention handling function in
15637 * turn to process the relevant HBA attention events. This function is called
15638 * without any lock held. It gets the hbalock to access and update SLI data
15641 * This function returns IRQ_HANDLED when interrupt is handled, else it
15642 * returns IRQ_NONE.
15645 lpfc_sli4_intr_handler(int irq, void *dev_id)
15647 struct lpfc_hba *phba;
15648 irqreturn_t hba_irq_rc;
15649 bool hba_handled = false;
15652 /* Get the driver's phba structure from the dev_id */
15653 phba = (struct lpfc_hba *)dev_id;
15655 if (unlikely(!phba))
15659 * Invoke fast-path host attention interrupt handling as appropriate.
15661 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
15662 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
15663 &phba->sli4_hba.hba_eq_hdl[qidx]);
15664 if (hba_irq_rc == IRQ_HANDLED)
15665 hba_handled |= true;
15668 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
15669 } /* lpfc_sli4_intr_handler */
15671 void lpfc_sli4_poll_hbtimer(struct timer_list *t)
15673 struct lpfc_hba *phba = from_timer(phba, t, cpuhp_poll_timer);
15674 struct lpfc_queue *eq;
15678 list_for_each_entry_rcu(eq, &phba->poll_list, _poll_list)
15679 lpfc_sli4_poll_eq(eq);
15680 if (!list_empty(&phba->poll_list))
15681 mod_timer(&phba->cpuhp_poll_timer,
15682 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
15687 static inline void lpfc_sli4_add_to_poll_list(struct lpfc_queue *eq)
15689 struct lpfc_hba *phba = eq->phba;
15691 /* kickstart slowpath processing if needed */
15692 if (list_empty(&phba->poll_list))
15693 mod_timer(&phba->cpuhp_poll_timer,
15694 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
15696 list_add_rcu(&eq->_poll_list, &phba->poll_list);
15700 static inline void lpfc_sli4_remove_from_poll_list(struct lpfc_queue *eq)
15702 struct lpfc_hba *phba = eq->phba;
15704 /* Disable slowpath processing for this eq. Kick start the eq
15705 * by RE-ARMING the eq's ASAP
15707 list_del_rcu(&eq->_poll_list);
15710 if (list_empty(&phba->poll_list))
15711 del_timer_sync(&phba->cpuhp_poll_timer);
15714 void lpfc_sli4_cleanup_poll_list(struct lpfc_hba *phba)
15716 struct lpfc_queue *eq, *next;
15718 list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list)
15719 list_del(&eq->_poll_list);
15721 INIT_LIST_HEAD(&phba->poll_list);
15726 __lpfc_sli4_switch_eqmode(struct lpfc_queue *eq, uint8_t mode)
15728 if (mode == eq->mode)
15731 * currently this function is only called during a hotplug
15732 * event and the cpu on which this function is executing
15733 * is going offline. By now the hotplug has instructed
15734 * the scheduler to remove this cpu from cpu active mask.
15735 * So we don't need to work about being put aside by the
15736 * scheduler for a high priority process. Yes, the inte-
15737 * rrupts could come but they are known to retire ASAP.
15740 /* Disable polling in the fastpath */
15741 WRITE_ONCE(eq->mode, mode);
15742 /* flush out the store buffer */
15746 * Add this eq to the polling list and start polling. For
15747 * a grace period both interrupt handler and poller will
15748 * try to process the eq _but_ that's fine. We have a
15749 * synchronization mechanism in place (queue_claimed) to
15750 * deal with it. This is just a draining phase for int-
15751 * errupt handler (not eq's) as we have guranteed through
15752 * barrier that all the CPUs have seen the new CQ_POLLED
15753 * state. which will effectively disable the REARMING of
15754 * the EQ. The whole idea is eq's die off eventually as
15755 * we are not rearming EQ's anymore.
15757 mode ? lpfc_sli4_add_to_poll_list(eq) :
15758 lpfc_sli4_remove_from_poll_list(eq);
15761 void lpfc_sli4_start_polling(struct lpfc_queue *eq)
15763 __lpfc_sli4_switch_eqmode(eq, LPFC_EQ_POLL);
15766 void lpfc_sli4_stop_polling(struct lpfc_queue *eq)
15768 struct lpfc_hba *phba = eq->phba;
15770 __lpfc_sli4_switch_eqmode(eq, LPFC_EQ_INTERRUPT);
15772 /* Kick start for the pending io's in h/w.
15773 * Once we switch back to interrupt processing on a eq
15774 * the io path completion will only arm eq's when it
15775 * receives a completion. But since eq's are in disa-
15776 * rmed state it doesn't receive a completion. This
15777 * creates a deadlock scenaro.
15779 phba->sli4_hba.sli4_write_eq_db(phba, eq, 0, LPFC_QUEUE_REARM);
15783 * lpfc_sli4_queue_free - free a queue structure and associated memory
15784 * @queue: The queue structure to free.
15786 * This function frees a queue structure and the DMAable memory used for
15787 * the host resident queue. This function must be called after destroying the
15788 * queue on the HBA.
15791 lpfc_sli4_queue_free(struct lpfc_queue *queue)
15793 struct lpfc_dmabuf *dmabuf;
15798 if (!list_empty(&queue->wq_list))
15799 list_del(&queue->wq_list);
15801 while (!list_empty(&queue->page_list)) {
15802 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
15804 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
15805 dmabuf->virt, dmabuf->phys);
15809 lpfc_free_rq_buffer(queue->phba, queue);
15810 kfree(queue->rqbp);
15813 if (!list_empty(&queue->cpu_list))
15814 list_del(&queue->cpu_list);
15821 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
15822 * @phba: The HBA that this queue is being created on.
15823 * @page_size: The size of a queue page
15824 * @entry_size: The size of each queue entry for this queue.
15825 * @entry_count: The number of entries that this queue will handle.
15826 * @cpu: The cpu that will primarily utilize this queue.
15828 * This function allocates a queue structure and the DMAable memory used for
15829 * the host resident queue. This function must be called before creating the
15830 * queue on the HBA.
15832 struct lpfc_queue *
15833 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
15834 uint32_t entry_size, uint32_t entry_count, int cpu)
15836 struct lpfc_queue *queue;
15837 struct lpfc_dmabuf *dmabuf;
15838 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15841 if (!phba->sli4_hba.pc_sli4_params.supported)
15842 hw_page_size = page_size;
15844 pgcnt = ALIGN(entry_size * entry_count, hw_page_size) / hw_page_size;
15846 /* If needed, Adjust page count to match the max the adapter supports */
15847 if (pgcnt > phba->sli4_hba.pc_sli4_params.wqpcnt)
15848 pgcnt = phba->sli4_hba.pc_sli4_params.wqpcnt;
15850 queue = kzalloc_node(sizeof(*queue) + (sizeof(void *) * pgcnt),
15851 GFP_KERNEL, cpu_to_node(cpu));
15855 INIT_LIST_HEAD(&queue->list);
15856 INIT_LIST_HEAD(&queue->_poll_list);
15857 INIT_LIST_HEAD(&queue->wq_list);
15858 INIT_LIST_HEAD(&queue->wqfull_list);
15859 INIT_LIST_HEAD(&queue->page_list);
15860 INIT_LIST_HEAD(&queue->child_list);
15861 INIT_LIST_HEAD(&queue->cpu_list);
15863 /* Set queue parameters now. If the system cannot provide memory
15864 * resources, the free routine needs to know what was allocated.
15866 queue->page_count = pgcnt;
15867 queue->q_pgs = (void **)&queue[1];
15868 queue->entry_cnt_per_pg = hw_page_size / entry_size;
15869 queue->entry_size = entry_size;
15870 queue->entry_count = entry_count;
15871 queue->page_size = hw_page_size;
15872 queue->phba = phba;
15874 for (x = 0; x < queue->page_count; x++) {
15875 dmabuf = kzalloc_node(sizeof(*dmabuf), GFP_KERNEL,
15876 dev_to_node(&phba->pcidev->dev));
15879 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
15880 hw_page_size, &dmabuf->phys,
15882 if (!dmabuf->virt) {
15886 dmabuf->buffer_tag = x;
15887 list_add_tail(&dmabuf->list, &queue->page_list);
15888 /* use lpfc_sli4_qe to index a paritcular entry in this page */
15889 queue->q_pgs[x] = dmabuf->virt;
15891 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
15892 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
15893 INIT_DELAYED_WORK(&queue->sched_irqwork, lpfc_sli4_dly_hba_process_cq);
15894 INIT_DELAYED_WORK(&queue->sched_spwork, lpfc_sli4_dly_sp_process_cq);
15896 /* notify_interval will be set during q creation */
15900 lpfc_sli4_queue_free(queue);
15905 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
15906 * @phba: HBA structure that indicates port to create a queue on.
15907 * @pci_barset: PCI BAR set flag.
15909 * This function shall perform iomap of the specified PCI BAR address to host
15910 * memory address if not already done so and return it. The returned host
15911 * memory address can be NULL.
15913 static void __iomem *
15914 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
15919 switch (pci_barset) {
15920 case WQ_PCI_BAR_0_AND_1:
15921 return phba->pci_bar0_memmap_p;
15922 case WQ_PCI_BAR_2_AND_3:
15923 return phba->pci_bar2_memmap_p;
15924 case WQ_PCI_BAR_4_AND_5:
15925 return phba->pci_bar4_memmap_p;
15933 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on EQs
15934 * @phba: HBA structure that EQs are on.
15935 * @startq: The starting EQ index to modify
15936 * @numq: The number of EQs (consecutive indexes) to modify
15937 * @usdelay: amount of delay
15939 * This function revises the EQ delay on 1 or more EQs. The EQ delay
15940 * is set either by writing to a register (if supported by the SLI Port)
15941 * or by mailbox command. The mailbox command allows several EQs to be
15944 * The @phba struct is used to send a mailbox command to HBA. The @startq
15945 * is used to get the starting EQ index to change. The @numq value is
15946 * used to specify how many consecutive EQ indexes, starting at EQ index,
15947 * are to be changed. This function is asynchronous and will wait for any
15948 * mailbox commands to finish before returning.
15950 * On success this function will return a zero. If unable to allocate
15951 * enough memory this function will return -ENOMEM. If a mailbox command
15952 * fails this function will return -ENXIO. Note: on ENXIO, some EQs may
15953 * have had their delay multipler changed.
15956 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
15957 uint32_t numq, uint32_t usdelay)
15959 struct lpfc_mbx_modify_eq_delay *eq_delay;
15960 LPFC_MBOXQ_t *mbox;
15961 struct lpfc_queue *eq;
15962 int cnt = 0, rc, length;
15963 uint32_t shdr_status, shdr_add_status;
15966 union lpfc_sli4_cfg_shdr *shdr;
15968 if (startq >= phba->cfg_irq_chann)
15971 if (usdelay > 0xFFFF) {
15972 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP | LOG_NVME,
15973 "6429 usdelay %d too large. Scaled down to "
15974 "0xFFFF.\n", usdelay);
15978 /* set values by EQ_DELAY register if supported */
15979 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
15980 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
15981 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
15985 lpfc_sli4_mod_hba_eq_delay(phba, eq, usdelay);
15993 /* Otherwise, set values by mailbox cmd */
15995 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15997 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15998 "6428 Failed allocating mailbox cmd buffer."
15999 " EQ delay was not set.\n");
16002 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
16003 sizeof(struct lpfc_sli4_cfg_mhdr));
16004 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16005 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
16006 length, LPFC_SLI4_MBX_EMBED);
16007 eq_delay = &mbox->u.mqe.un.eq_delay;
16009 /* Calculate delay multiper from maximum interrupt per second */
16010 dmult = (usdelay * LPFC_DMULT_CONST) / LPFC_SEC_TO_USEC;
16013 if (dmult > LPFC_DMULT_MAX)
16014 dmult = LPFC_DMULT_MAX;
16016 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
16017 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
16020 eq->q_mode = usdelay;
16021 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
16022 eq_delay->u.request.eq[cnt].phase = 0;
16023 eq_delay->u.request.eq[cnt].delay_multi = dmult;
16028 eq_delay->u.request.num_eq = cnt;
16030 mbox->vport = phba->pport;
16031 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16032 mbox->ctx_ndlp = NULL;
16033 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16034 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
16035 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16036 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16037 if (shdr_status || shdr_add_status || rc) {
16038 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16039 "2512 MODIFY_EQ_DELAY mailbox failed with "
16040 "status x%x add_status x%x, mbx status x%x\n",
16041 shdr_status, shdr_add_status, rc);
16043 mempool_free(mbox, phba->mbox_mem_pool);
16048 * lpfc_eq_create - Create an Event Queue on the HBA
16049 * @phba: HBA structure that indicates port to create a queue on.
16050 * @eq: The queue structure to use to create the event queue.
16051 * @imax: The maximum interrupt per second limit.
16053 * This function creates an event queue, as detailed in @eq, on a port,
16054 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
16056 * The @phba struct is used to send mailbox command to HBA. The @eq struct
16057 * is used to get the entry count and entry size that are necessary to
16058 * determine the number of pages to allocate and use for this queue. This
16059 * function will send the EQ_CREATE mailbox command to the HBA to setup the
16060 * event queue. This function is asynchronous and will wait for the mailbox
16061 * command to finish before continuing.
16063 * On success this function will return a zero. If unable to allocate enough
16064 * memory this function will return -ENOMEM. If the queue create mailbox command
16065 * fails this function will return -ENXIO.
16068 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
16070 struct lpfc_mbx_eq_create *eq_create;
16071 LPFC_MBOXQ_t *mbox;
16072 int rc, length, status = 0;
16073 struct lpfc_dmabuf *dmabuf;
16074 uint32_t shdr_status, shdr_add_status;
16075 union lpfc_sli4_cfg_shdr *shdr;
16077 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16079 /* sanity check on queue memory */
16082 if (!phba->sli4_hba.pc_sli4_params.supported)
16083 hw_page_size = SLI4_PAGE_SIZE;
16085 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16088 length = (sizeof(struct lpfc_mbx_eq_create) -
16089 sizeof(struct lpfc_sli4_cfg_mhdr));
16090 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16091 LPFC_MBOX_OPCODE_EQ_CREATE,
16092 length, LPFC_SLI4_MBX_EMBED);
16093 eq_create = &mbox->u.mqe.un.eq_create;
16094 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
16095 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
16097 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
16099 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
16101 /* Use version 2 of CREATE_EQ if eqav is set */
16102 if (phba->sli4_hba.pc_sli4_params.eqav) {
16103 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16104 LPFC_Q_CREATE_VERSION_2);
16105 bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
16106 phba->sli4_hba.pc_sli4_params.eqav);
16109 /* don't setup delay multiplier using EQ_CREATE */
16111 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
16113 switch (eq->entry_count) {
16115 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16116 "0360 Unsupported EQ count. (%d)\n",
16118 if (eq->entry_count < 256) {
16122 fallthrough; /* otherwise default to smallest count */
16124 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16128 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16132 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16136 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16140 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
16144 list_for_each_entry(dmabuf, &eq->page_list, list) {
16145 memset(dmabuf->virt, 0, hw_page_size);
16146 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
16147 putPaddrLow(dmabuf->phys);
16148 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
16149 putPaddrHigh(dmabuf->phys);
16151 mbox->vport = phba->pport;
16152 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16153 mbox->ctx_buf = NULL;
16154 mbox->ctx_ndlp = NULL;
16155 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16156 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16157 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16158 if (shdr_status || shdr_add_status || rc) {
16159 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16160 "2500 EQ_CREATE mailbox failed with "
16161 "status x%x add_status x%x, mbx status x%x\n",
16162 shdr_status, shdr_add_status, rc);
16165 eq->type = LPFC_EQ;
16166 eq->subtype = LPFC_NONE;
16167 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
16168 if (eq->queue_id == 0xFFFF)
16170 eq->host_index = 0;
16171 eq->notify_interval = LPFC_EQ_NOTIFY_INTRVL;
16172 eq->max_proc_limit = LPFC_EQ_MAX_PROC_LIMIT;
16174 mempool_free(mbox, phba->mbox_mem_pool);
16179 * lpfc_sli4_hba_intr_handler_th - SLI4 HBA threaded interrupt handler
16180 * @irq: Interrupt number.
16181 * @dev_id: The device context pointer.
16183 * This routine is a mirror of lpfc_sli4_hba_intr_handler, but executed within
16184 * threaded irq context.
16187 * IRQ_HANDLED - interrupt is handled
16188 * IRQ_NONE - otherwise
16190 irqreturn_t lpfc_sli4_hba_intr_handler_th(int irq, void *dev_id)
16192 struct lpfc_hba *phba;
16193 struct lpfc_hba_eq_hdl *hba_eq_hdl;
16194 struct lpfc_queue *fpeq;
16197 struct lpfc_eq_intr_info *eqi;
16199 /* Get the driver's phba structure from the dev_id */
16200 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
16201 phba = hba_eq_hdl->phba;
16202 hba_eqidx = hba_eq_hdl->idx;
16204 if (unlikely(!phba))
16206 if (unlikely(!phba->sli4_hba.hdwq))
16209 /* Get to the EQ struct associated with this vector */
16210 fpeq = phba->sli4_hba.hba_eq_hdl[hba_eqidx].eq;
16211 if (unlikely(!fpeq))
16214 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, raw_smp_processor_id());
16217 fpeq->last_cpu = raw_smp_processor_id();
16219 if (eqi->icnt > LPFC_EQD_ISR_TRIGGER &&
16220 fpeq->q_flag & HBA_EQ_DELAY_CHK &&
16221 phba->cfg_auto_imax &&
16222 fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
16223 phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
16224 lpfc_sli4_mod_hba_eq_delay(phba, fpeq, LPFC_MAX_AUTO_EQ_DELAY);
16226 /* process and rearm the EQ */
16227 ecount = lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM,
16228 LPFC_THREADED_IRQ);
16230 if (unlikely(ecount == 0)) {
16231 fpeq->EQ_no_entry++;
16232 if (phba->intr_type == MSIX)
16233 /* MSI-X treated interrupt served as no EQ share INT */
16234 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
16235 "3358 MSI-X interrupt with no EQE\n");
16237 /* Non MSI-X treated on interrupt as EQ share INT */
16240 return IRQ_HANDLED;
16244 * lpfc_cq_create - Create a Completion Queue on the HBA
16245 * @phba: HBA structure that indicates port to create a queue on.
16246 * @cq: The queue structure to use to create the completion queue.
16247 * @eq: The event queue to bind this completion queue to.
16248 * @type: Type of queue (EQ, GCQ, MCQ, WCQ, etc).
16249 * @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
16251 * This function creates a completion queue, as detailed in @wq, on a port,
16252 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
16254 * The @phba struct is used to send mailbox command to HBA. The @cq struct
16255 * is used to get the entry count and entry size that are necessary to
16256 * determine the number of pages to allocate and use for this queue. The @eq
16257 * is used to indicate which event queue to bind this completion queue to. This
16258 * function will send the CQ_CREATE mailbox command to the HBA to setup the
16259 * completion queue. This function is asynchronous and will wait for the mailbox
16260 * command to finish before continuing.
16262 * On success this function will return a zero. If unable to allocate enough
16263 * memory this function will return -ENOMEM. If the queue create mailbox command
16264 * fails this function will return -ENXIO.
16267 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
16268 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
16270 struct lpfc_mbx_cq_create *cq_create;
16271 struct lpfc_dmabuf *dmabuf;
16272 LPFC_MBOXQ_t *mbox;
16273 int rc, length, status = 0;
16274 uint32_t shdr_status, shdr_add_status;
16275 union lpfc_sli4_cfg_shdr *shdr;
16277 /* sanity check on queue memory */
16281 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16284 length = (sizeof(struct lpfc_mbx_cq_create) -
16285 sizeof(struct lpfc_sli4_cfg_mhdr));
16286 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16287 LPFC_MBOX_OPCODE_CQ_CREATE,
16288 length, LPFC_SLI4_MBX_EMBED);
16289 cq_create = &mbox->u.mqe.un.cq_create;
16290 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
16291 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
16293 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
16294 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
16295 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16296 phba->sli4_hba.pc_sli4_params.cqv);
16297 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
16298 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
16299 (cq->page_size / SLI4_PAGE_SIZE));
16300 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
16302 bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
16303 phba->sli4_hba.pc_sli4_params.cqav);
16305 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
16308 switch (cq->entry_count) {
16311 if (phba->sli4_hba.pc_sli4_params.cqv ==
16312 LPFC_Q_CREATE_VERSION_2) {
16313 cq_create->u.request.context.lpfc_cq_context_count =
16315 bf_set(lpfc_cq_context_count,
16316 &cq_create->u.request.context,
16317 LPFC_CQ_CNT_WORD7);
16322 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16323 "0361 Unsupported CQ count: "
16324 "entry cnt %d sz %d pg cnt %d\n",
16325 cq->entry_count, cq->entry_size,
16327 if (cq->entry_count < 256) {
16331 fallthrough; /* otherwise default to smallest count */
16333 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
16337 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
16341 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
16345 list_for_each_entry(dmabuf, &cq->page_list, list) {
16346 memset(dmabuf->virt, 0, cq->page_size);
16347 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
16348 putPaddrLow(dmabuf->phys);
16349 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
16350 putPaddrHigh(dmabuf->phys);
16352 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16354 /* The IOCTL status is embedded in the mailbox subheader. */
16355 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16356 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16357 if (shdr_status || shdr_add_status || rc) {
16358 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16359 "2501 CQ_CREATE mailbox failed with "
16360 "status x%x add_status x%x, mbx status x%x\n",
16361 shdr_status, shdr_add_status, rc);
16365 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
16366 if (cq->queue_id == 0xFFFF) {
16370 /* link the cq onto the parent eq child list */
16371 list_add_tail(&cq->list, &eq->child_list);
16372 /* Set up completion queue's type and subtype */
16374 cq->subtype = subtype;
16375 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
16376 cq->assoc_qid = eq->queue_id;
16378 cq->host_index = 0;
16379 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
16380 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, cq->entry_count);
16382 if (cq->queue_id > phba->sli4_hba.cq_max)
16383 phba->sli4_hba.cq_max = cq->queue_id;
16385 mempool_free(mbox, phba->mbox_mem_pool);
16390 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
16391 * @phba: HBA structure that indicates port to create a queue on.
16392 * @cqp: The queue structure array to use to create the completion queues.
16393 * @hdwq: The hardware queue array with the EQ to bind completion queues to.
16394 * @type: Type of queue (EQ, GCQ, MCQ, WCQ, etc).
16395 * @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
16397 * This function creates a set of completion queue, s to support MRQ
16398 * as detailed in @cqp, on a port,
16399 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
16401 * The @phba struct is used to send mailbox command to HBA. The @cq struct
16402 * is used to get the entry count and entry size that are necessary to
16403 * determine the number of pages to allocate and use for this queue. The @eq
16404 * is used to indicate which event queue to bind this completion queue to. This
16405 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
16406 * completion queue. This function is asynchronous and will wait for the mailbox
16407 * command to finish before continuing.
16409 * On success this function will return a zero. If unable to allocate enough
16410 * memory this function will return -ENOMEM. If the queue create mailbox command
16411 * fails this function will return -ENXIO.
16414 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
16415 struct lpfc_sli4_hdw_queue *hdwq, uint32_t type,
16418 struct lpfc_queue *cq;
16419 struct lpfc_queue *eq;
16420 struct lpfc_mbx_cq_create_set *cq_set;
16421 struct lpfc_dmabuf *dmabuf;
16422 LPFC_MBOXQ_t *mbox;
16423 int rc, length, alloclen, status = 0;
16424 int cnt, idx, numcq, page_idx = 0;
16425 uint32_t shdr_status, shdr_add_status;
16426 union lpfc_sli4_cfg_shdr *shdr;
16427 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16429 /* sanity check on queue memory */
16430 numcq = phba->cfg_nvmet_mrq;
16431 if (!cqp || !hdwq || !numcq)
16434 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16438 length = sizeof(struct lpfc_mbx_cq_create_set);
16439 length += ((numcq * cqp[0]->page_count) *
16440 sizeof(struct dma_address));
16441 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16442 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
16443 LPFC_SLI4_MBX_NEMBED);
16444 if (alloclen < length) {
16445 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16446 "3098 Allocated DMA memory size (%d) is "
16447 "less than the requested DMA memory size "
16448 "(%d)\n", alloclen, length);
16452 cq_set = mbox->sge_array->addr[0];
16453 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
16454 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
16456 for (idx = 0; idx < numcq; idx++) {
16458 eq = hdwq[idx].hba_eq;
16463 if (!phba->sli4_hba.pc_sli4_params.supported)
16464 hw_page_size = cq->page_size;
16468 bf_set(lpfc_mbx_cq_create_set_page_size,
16469 &cq_set->u.request,
16470 (hw_page_size / SLI4_PAGE_SIZE));
16471 bf_set(lpfc_mbx_cq_create_set_num_pages,
16472 &cq_set->u.request, cq->page_count);
16473 bf_set(lpfc_mbx_cq_create_set_evt,
16474 &cq_set->u.request, 1);
16475 bf_set(lpfc_mbx_cq_create_set_valid,
16476 &cq_set->u.request, 1);
16477 bf_set(lpfc_mbx_cq_create_set_cqe_size,
16478 &cq_set->u.request, 0);
16479 bf_set(lpfc_mbx_cq_create_set_num_cq,
16480 &cq_set->u.request, numcq);
16481 bf_set(lpfc_mbx_cq_create_set_autovalid,
16482 &cq_set->u.request,
16483 phba->sli4_hba.pc_sli4_params.cqav);
16484 switch (cq->entry_count) {
16487 if (phba->sli4_hba.pc_sli4_params.cqv ==
16488 LPFC_Q_CREATE_VERSION_2) {
16489 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16490 &cq_set->u.request,
16492 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16493 &cq_set->u.request,
16494 LPFC_CQ_CNT_WORD7);
16499 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16500 "3118 Bad CQ count. (%d)\n",
16502 if (cq->entry_count < 256) {
16506 fallthrough; /* otherwise default to smallest */
16508 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16509 &cq_set->u.request, LPFC_CQ_CNT_256);
16512 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16513 &cq_set->u.request, LPFC_CQ_CNT_512);
16516 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
16517 &cq_set->u.request, LPFC_CQ_CNT_1024);
16520 bf_set(lpfc_mbx_cq_create_set_eq_id0,
16521 &cq_set->u.request, eq->queue_id);
16524 bf_set(lpfc_mbx_cq_create_set_eq_id1,
16525 &cq_set->u.request, eq->queue_id);
16528 bf_set(lpfc_mbx_cq_create_set_eq_id2,
16529 &cq_set->u.request, eq->queue_id);
16532 bf_set(lpfc_mbx_cq_create_set_eq_id3,
16533 &cq_set->u.request, eq->queue_id);
16536 bf_set(lpfc_mbx_cq_create_set_eq_id4,
16537 &cq_set->u.request, eq->queue_id);
16540 bf_set(lpfc_mbx_cq_create_set_eq_id5,
16541 &cq_set->u.request, eq->queue_id);
16544 bf_set(lpfc_mbx_cq_create_set_eq_id6,
16545 &cq_set->u.request, eq->queue_id);
16548 bf_set(lpfc_mbx_cq_create_set_eq_id7,
16549 &cq_set->u.request, eq->queue_id);
16552 bf_set(lpfc_mbx_cq_create_set_eq_id8,
16553 &cq_set->u.request, eq->queue_id);
16556 bf_set(lpfc_mbx_cq_create_set_eq_id9,
16557 &cq_set->u.request, eq->queue_id);
16560 bf_set(lpfc_mbx_cq_create_set_eq_id10,
16561 &cq_set->u.request, eq->queue_id);
16564 bf_set(lpfc_mbx_cq_create_set_eq_id11,
16565 &cq_set->u.request, eq->queue_id);
16568 bf_set(lpfc_mbx_cq_create_set_eq_id12,
16569 &cq_set->u.request, eq->queue_id);
16572 bf_set(lpfc_mbx_cq_create_set_eq_id13,
16573 &cq_set->u.request, eq->queue_id);
16576 bf_set(lpfc_mbx_cq_create_set_eq_id14,
16577 &cq_set->u.request, eq->queue_id);
16580 bf_set(lpfc_mbx_cq_create_set_eq_id15,
16581 &cq_set->u.request, eq->queue_id);
16585 /* link the cq onto the parent eq child list */
16586 list_add_tail(&cq->list, &eq->child_list);
16587 /* Set up completion queue's type and subtype */
16589 cq->subtype = subtype;
16590 cq->assoc_qid = eq->queue_id;
16592 cq->host_index = 0;
16593 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
16594 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
16599 list_for_each_entry(dmabuf, &cq->page_list, list) {
16600 memset(dmabuf->virt, 0, hw_page_size);
16601 cnt = page_idx + dmabuf->buffer_tag;
16602 cq_set->u.request.page[cnt].addr_lo =
16603 putPaddrLow(dmabuf->phys);
16604 cq_set->u.request.page[cnt].addr_hi =
16605 putPaddrHigh(dmabuf->phys);
16611 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16613 /* The IOCTL status is embedded in the mailbox subheader. */
16614 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16615 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16616 if (shdr_status || shdr_add_status || rc) {
16617 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16618 "3119 CQ_CREATE_SET mailbox failed with "
16619 "status x%x add_status x%x, mbx status x%x\n",
16620 shdr_status, shdr_add_status, rc);
16624 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
16625 if (rc == 0xFFFF) {
16630 for (idx = 0; idx < numcq; idx++) {
16632 cq->queue_id = rc + idx;
16633 if (cq->queue_id > phba->sli4_hba.cq_max)
16634 phba->sli4_hba.cq_max = cq->queue_id;
16638 lpfc_sli4_mbox_cmd_free(phba, mbox);
16643 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
16644 * @phba: HBA structure that indicates port to create a queue on.
16645 * @mq: The queue structure to use to create the mailbox queue.
16646 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
16647 * @cq: The completion queue to associate with this cq.
16649 * This function provides failback (fb) functionality when the
16650 * mq_create_ext fails on older FW generations. It's purpose is identical
16651 * to mq_create_ext otherwise.
16653 * This routine cannot fail as all attributes were previously accessed and
16654 * initialized in mq_create_ext.
16657 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
16658 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
16660 struct lpfc_mbx_mq_create *mq_create;
16661 struct lpfc_dmabuf *dmabuf;
16664 length = (sizeof(struct lpfc_mbx_mq_create) -
16665 sizeof(struct lpfc_sli4_cfg_mhdr));
16666 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16667 LPFC_MBOX_OPCODE_MQ_CREATE,
16668 length, LPFC_SLI4_MBX_EMBED);
16669 mq_create = &mbox->u.mqe.un.mq_create;
16670 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
16672 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
16674 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
16675 switch (mq->entry_count) {
16677 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
16678 LPFC_MQ_RING_SIZE_16);
16681 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
16682 LPFC_MQ_RING_SIZE_32);
16685 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
16686 LPFC_MQ_RING_SIZE_64);
16689 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
16690 LPFC_MQ_RING_SIZE_128);
16693 list_for_each_entry(dmabuf, &mq->page_list, list) {
16694 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
16695 putPaddrLow(dmabuf->phys);
16696 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
16697 putPaddrHigh(dmabuf->phys);
16702 * lpfc_mq_create - Create a mailbox Queue on the HBA
16703 * @phba: HBA structure that indicates port to create a queue on.
16704 * @mq: The queue structure to use to create the mailbox queue.
16705 * @cq: The completion queue to associate with this cq.
16706 * @subtype: The queue's subtype.
16708 * This function creates a mailbox queue, as detailed in @mq, on a port,
16709 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
16711 * The @phba struct is used to send mailbox command to HBA. The @cq struct
16712 * is used to get the entry count and entry size that are necessary to
16713 * determine the number of pages to allocate and use for this queue. This
16714 * function will send the MQ_CREATE mailbox command to the HBA to setup the
16715 * mailbox queue. This function is asynchronous and will wait for the mailbox
16716 * command to finish before continuing.
16718 * On success this function will return a zero. If unable to allocate enough
16719 * memory this function will return -ENOMEM. If the queue create mailbox command
16720 * fails this function will return -ENXIO.
16723 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
16724 struct lpfc_queue *cq, uint32_t subtype)
16726 struct lpfc_mbx_mq_create *mq_create;
16727 struct lpfc_mbx_mq_create_ext *mq_create_ext;
16728 struct lpfc_dmabuf *dmabuf;
16729 LPFC_MBOXQ_t *mbox;
16730 int rc, length, status = 0;
16731 uint32_t shdr_status, shdr_add_status;
16732 union lpfc_sli4_cfg_shdr *shdr;
16733 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16735 /* sanity check on queue memory */
16738 if (!phba->sli4_hba.pc_sli4_params.supported)
16739 hw_page_size = SLI4_PAGE_SIZE;
16741 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16744 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
16745 sizeof(struct lpfc_sli4_cfg_mhdr));
16746 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16747 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
16748 length, LPFC_SLI4_MBX_EMBED);
16750 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
16751 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
16752 bf_set(lpfc_mbx_mq_create_ext_num_pages,
16753 &mq_create_ext->u.request, mq->page_count);
16754 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
16755 &mq_create_ext->u.request, 1);
16756 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
16757 &mq_create_ext->u.request, 1);
16758 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
16759 &mq_create_ext->u.request, 1);
16760 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
16761 &mq_create_ext->u.request, 1);
16762 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
16763 &mq_create_ext->u.request, 1);
16764 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
16765 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16766 phba->sli4_hba.pc_sli4_params.mqv);
16767 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
16768 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
16771 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
16773 switch (mq->entry_count) {
16775 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16776 "0362 Unsupported MQ count. (%d)\n",
16778 if (mq->entry_count < 16) {
16782 fallthrough; /* otherwise default to smallest count */
16784 bf_set(lpfc_mq_context_ring_size,
16785 &mq_create_ext->u.request.context,
16786 LPFC_MQ_RING_SIZE_16);
16789 bf_set(lpfc_mq_context_ring_size,
16790 &mq_create_ext->u.request.context,
16791 LPFC_MQ_RING_SIZE_32);
16794 bf_set(lpfc_mq_context_ring_size,
16795 &mq_create_ext->u.request.context,
16796 LPFC_MQ_RING_SIZE_64);
16799 bf_set(lpfc_mq_context_ring_size,
16800 &mq_create_ext->u.request.context,
16801 LPFC_MQ_RING_SIZE_128);
16804 list_for_each_entry(dmabuf, &mq->page_list, list) {
16805 memset(dmabuf->virt, 0, hw_page_size);
16806 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
16807 putPaddrLow(dmabuf->phys);
16808 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
16809 putPaddrHigh(dmabuf->phys);
16811 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16812 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
16813 &mq_create_ext->u.response);
16814 if (rc != MBX_SUCCESS) {
16815 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16816 "2795 MQ_CREATE_EXT failed with "
16817 "status x%x. Failback to MQ_CREATE.\n",
16819 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
16820 mq_create = &mbox->u.mqe.un.mq_create;
16821 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16822 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
16823 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
16824 &mq_create->u.response);
16827 /* The IOCTL status is embedded in the mailbox subheader. */
16828 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16829 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16830 if (shdr_status || shdr_add_status || rc) {
16831 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16832 "2502 MQ_CREATE mailbox failed with "
16833 "status x%x add_status x%x, mbx status x%x\n",
16834 shdr_status, shdr_add_status, rc);
16838 if (mq->queue_id == 0xFFFF) {
16842 mq->type = LPFC_MQ;
16843 mq->assoc_qid = cq->queue_id;
16844 mq->subtype = subtype;
16845 mq->host_index = 0;
16848 /* link the mq onto the parent cq child list */
16849 list_add_tail(&mq->list, &cq->child_list);
16851 mempool_free(mbox, phba->mbox_mem_pool);
16856 * lpfc_wq_create - Create a Work Queue on the HBA
16857 * @phba: HBA structure that indicates port to create a queue on.
16858 * @wq: The queue structure to use to create the work queue.
16859 * @cq: The completion queue to bind this work queue to.
16860 * @subtype: The subtype of the work queue indicating its functionality.
16862 * This function creates a work queue, as detailed in @wq, on a port, described
16863 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
16865 * The @phba struct is used to send mailbox command to HBA. The @wq struct
16866 * is used to get the entry count and entry size that are necessary to
16867 * determine the number of pages to allocate and use for this queue. The @cq
16868 * is used to indicate which completion queue to bind this work queue to. This
16869 * function will send the WQ_CREATE mailbox command to the HBA to setup the
16870 * work queue. This function is asynchronous and will wait for the mailbox
16871 * command to finish before continuing.
16873 * On success this function will return a zero. If unable to allocate enough
16874 * memory this function will return -ENOMEM. If the queue create mailbox command
16875 * fails this function will return -ENXIO.
16878 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
16879 struct lpfc_queue *cq, uint32_t subtype)
16881 struct lpfc_mbx_wq_create *wq_create;
16882 struct lpfc_dmabuf *dmabuf;
16883 LPFC_MBOXQ_t *mbox;
16884 int rc, length, status = 0;
16885 uint32_t shdr_status, shdr_add_status;
16886 union lpfc_sli4_cfg_shdr *shdr;
16887 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16888 struct dma_address *page;
16889 void __iomem *bar_memmap_p;
16890 uint32_t db_offset;
16891 uint16_t pci_barset;
16892 uint8_t dpp_barset;
16893 uint32_t dpp_offset;
16894 uint8_t wq_create_version;
16896 unsigned long pg_addr;
16899 /* sanity check on queue memory */
16902 if (!phba->sli4_hba.pc_sli4_params.supported)
16903 hw_page_size = wq->page_size;
16905 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16908 length = (sizeof(struct lpfc_mbx_wq_create) -
16909 sizeof(struct lpfc_sli4_cfg_mhdr));
16910 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16911 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
16912 length, LPFC_SLI4_MBX_EMBED);
16913 wq_create = &mbox->u.mqe.un.wq_create;
16914 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
16915 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
16917 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
16920 /* wqv is the earliest version supported, NOT the latest */
16921 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16922 phba->sli4_hba.pc_sli4_params.wqv);
16924 if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
16925 (wq->page_size > SLI4_PAGE_SIZE))
16926 wq_create_version = LPFC_Q_CREATE_VERSION_1;
16928 wq_create_version = LPFC_Q_CREATE_VERSION_0;
16930 switch (wq_create_version) {
16931 case LPFC_Q_CREATE_VERSION_1:
16932 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
16934 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16935 LPFC_Q_CREATE_VERSION_1);
16937 switch (wq->entry_size) {
16940 bf_set(lpfc_mbx_wq_create_wqe_size,
16941 &wq_create->u.request_1,
16942 LPFC_WQ_WQE_SIZE_64);
16945 bf_set(lpfc_mbx_wq_create_wqe_size,
16946 &wq_create->u.request_1,
16947 LPFC_WQ_WQE_SIZE_128);
16950 /* Request DPP by default */
16951 bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
16952 bf_set(lpfc_mbx_wq_create_page_size,
16953 &wq_create->u.request_1,
16954 (wq->page_size / SLI4_PAGE_SIZE));
16955 page = wq_create->u.request_1.page;
16958 page = wq_create->u.request.page;
16962 list_for_each_entry(dmabuf, &wq->page_list, list) {
16963 memset(dmabuf->virt, 0, hw_page_size);
16964 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
16965 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
16968 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
16969 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
16971 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16972 /* The IOCTL status is embedded in the mailbox subheader. */
16973 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16974 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16975 if (shdr_status || shdr_add_status || rc) {
16976 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
16977 "2503 WQ_CREATE mailbox failed with "
16978 "status x%x add_status x%x, mbx status x%x\n",
16979 shdr_status, shdr_add_status, rc);
16984 if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
16985 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
16986 &wq_create->u.response);
16988 wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
16989 &wq_create->u.response_1);
16991 if (wq->queue_id == 0xFFFF) {
16996 wq->db_format = LPFC_DB_LIST_FORMAT;
16997 if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
16998 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
16999 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
17000 &wq_create->u.response);
17001 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
17002 (wq->db_format != LPFC_DB_RING_FORMAT)) {
17003 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17004 "3265 WQ[%d] doorbell format "
17005 "not supported: x%x\n",
17006 wq->queue_id, wq->db_format);
17010 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
17011 &wq_create->u.response);
17012 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
17014 if (!bar_memmap_p) {
17015 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17016 "3263 WQ[%d] failed to memmap "
17017 "pci barset:x%x\n",
17018 wq->queue_id, pci_barset);
17022 db_offset = wq_create->u.response.doorbell_offset;
17023 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
17024 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
17025 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17026 "3252 WQ[%d] doorbell offset "
17027 "not supported: x%x\n",
17028 wq->queue_id, db_offset);
17032 wq->db_regaddr = bar_memmap_p + db_offset;
17033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
17034 "3264 WQ[%d]: barset:x%x, offset:x%x, "
17035 "format:x%x\n", wq->queue_id,
17036 pci_barset, db_offset, wq->db_format);
17038 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
17040 /* Check if DPP was honored by the firmware */
17041 wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
17042 &wq_create->u.response_1);
17043 if (wq->dpp_enable) {
17044 pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
17045 &wq_create->u.response_1);
17046 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
17048 if (!bar_memmap_p) {
17049 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17050 "3267 WQ[%d] failed to memmap "
17051 "pci barset:x%x\n",
17052 wq->queue_id, pci_barset);
17056 db_offset = wq_create->u.response_1.doorbell_offset;
17057 wq->db_regaddr = bar_memmap_p + db_offset;
17058 wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
17059 &wq_create->u.response_1);
17060 dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
17061 &wq_create->u.response_1);
17062 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
17064 if (!bar_memmap_p) {
17065 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17066 "3268 WQ[%d] failed to memmap "
17067 "pci barset:x%x\n",
17068 wq->queue_id, dpp_barset);
17072 dpp_offset = wq_create->u.response_1.dpp_offset;
17073 wq->dpp_regaddr = bar_memmap_p + dpp_offset;
17074 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
17075 "3271 WQ[%d]: barset:x%x, offset:x%x, "
17076 "dpp_id:x%x dpp_barset:x%x "
17077 "dpp_offset:x%x\n",
17078 wq->queue_id, pci_barset, db_offset,
17079 wq->dpp_id, dpp_barset, dpp_offset);
17082 /* Enable combined writes for DPP aperture */
17083 pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
17084 rc = set_memory_wc(pg_addr, 1);
17086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17087 "3272 Cannot setup Combined "
17088 "Write on WQ[%d] - disable DPP\n",
17090 phba->cfg_enable_dpp = 0;
17093 phba->cfg_enable_dpp = 0;
17096 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
17098 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
17099 if (wq->pring == NULL) {
17103 wq->type = LPFC_WQ;
17104 wq->assoc_qid = cq->queue_id;
17105 wq->subtype = subtype;
17106 wq->host_index = 0;
17108 wq->notify_interval = LPFC_WQ_NOTIFY_INTRVL;
17110 /* link the wq onto the parent cq child list */
17111 list_add_tail(&wq->list, &cq->child_list);
17113 mempool_free(mbox, phba->mbox_mem_pool);
17118 * lpfc_rq_create - Create a Receive Queue on the HBA
17119 * @phba: HBA structure that indicates port to create a queue on.
17120 * @hrq: The queue structure to use to create the header receive queue.
17121 * @drq: The queue structure to use to create the data receive queue.
17122 * @cq: The completion queue to bind this work queue to.
17123 * @subtype: The subtype of the work queue indicating its functionality.
17125 * This function creates a receive buffer queue pair , as detailed in @hrq and
17126 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
17129 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
17130 * struct is used to get the entry count that is necessary to determine the
17131 * number of pages to use for this queue. The @cq is used to indicate which
17132 * completion queue to bind received buffers that are posted to these queues to.
17133 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
17134 * receive queue pair. This function is asynchronous and will wait for the
17135 * mailbox command to finish before continuing.
17137 * On success this function will return a zero. If unable to allocate enough
17138 * memory this function will return -ENOMEM. If the queue create mailbox command
17139 * fails this function will return -ENXIO.
17142 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
17143 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
17145 struct lpfc_mbx_rq_create *rq_create;
17146 struct lpfc_dmabuf *dmabuf;
17147 LPFC_MBOXQ_t *mbox;
17148 int rc, length, status = 0;
17149 uint32_t shdr_status, shdr_add_status;
17150 union lpfc_sli4_cfg_shdr *shdr;
17151 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
17152 void __iomem *bar_memmap_p;
17153 uint32_t db_offset;
17154 uint16_t pci_barset;
17156 /* sanity check on queue memory */
17157 if (!hrq || !drq || !cq)
17159 if (!phba->sli4_hba.pc_sli4_params.supported)
17160 hw_page_size = SLI4_PAGE_SIZE;
17162 if (hrq->entry_count != drq->entry_count)
17164 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17167 length = (sizeof(struct lpfc_mbx_rq_create) -
17168 sizeof(struct lpfc_sli4_cfg_mhdr));
17169 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17170 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
17171 length, LPFC_SLI4_MBX_EMBED);
17172 rq_create = &mbox->u.mqe.un.rq_create;
17173 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
17174 bf_set(lpfc_mbox_hdr_version, &shdr->request,
17175 phba->sli4_hba.pc_sli4_params.rqv);
17176 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
17177 bf_set(lpfc_rq_context_rqe_count_1,
17178 &rq_create->u.request.context,
17180 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
17181 bf_set(lpfc_rq_context_rqe_size,
17182 &rq_create->u.request.context,
17184 bf_set(lpfc_rq_context_page_size,
17185 &rq_create->u.request.context,
17186 LPFC_RQ_PAGE_SIZE_4096);
17188 switch (hrq->entry_count) {
17190 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17191 "2535 Unsupported RQ count. (%d)\n",
17193 if (hrq->entry_count < 512) {
17197 fallthrough; /* otherwise default to smallest count */
17199 bf_set(lpfc_rq_context_rqe_count,
17200 &rq_create->u.request.context,
17201 LPFC_RQ_RING_SIZE_512);
17204 bf_set(lpfc_rq_context_rqe_count,
17205 &rq_create->u.request.context,
17206 LPFC_RQ_RING_SIZE_1024);
17209 bf_set(lpfc_rq_context_rqe_count,
17210 &rq_create->u.request.context,
17211 LPFC_RQ_RING_SIZE_2048);
17214 bf_set(lpfc_rq_context_rqe_count,
17215 &rq_create->u.request.context,
17216 LPFC_RQ_RING_SIZE_4096);
17219 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
17220 LPFC_HDR_BUF_SIZE);
17222 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
17224 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
17226 list_for_each_entry(dmabuf, &hrq->page_list, list) {
17227 memset(dmabuf->virt, 0, hw_page_size);
17228 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
17229 putPaddrLow(dmabuf->phys);
17230 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
17231 putPaddrHigh(dmabuf->phys);
17233 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
17234 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
17236 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17237 /* The IOCTL status is embedded in the mailbox subheader. */
17238 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17239 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17240 if (shdr_status || shdr_add_status || rc) {
17241 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17242 "2504 RQ_CREATE mailbox failed with "
17243 "status x%x add_status x%x, mbx status x%x\n",
17244 shdr_status, shdr_add_status, rc);
17248 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
17249 if (hrq->queue_id == 0xFFFF) {
17254 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
17255 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
17256 &rq_create->u.response);
17257 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
17258 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
17259 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17260 "3262 RQ [%d] doorbell format not "
17261 "supported: x%x\n", hrq->queue_id,
17267 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
17268 &rq_create->u.response);
17269 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
17270 if (!bar_memmap_p) {
17271 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17272 "3269 RQ[%d] failed to memmap pci "
17273 "barset:x%x\n", hrq->queue_id,
17279 db_offset = rq_create->u.response.doorbell_offset;
17280 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
17281 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
17282 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17283 "3270 RQ[%d] doorbell offset not "
17284 "supported: x%x\n", hrq->queue_id,
17289 hrq->db_regaddr = bar_memmap_p + db_offset;
17290 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
17291 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
17292 "format:x%x\n", hrq->queue_id, pci_barset,
17293 db_offset, hrq->db_format);
17295 hrq->db_format = LPFC_DB_RING_FORMAT;
17296 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
17298 hrq->type = LPFC_HRQ;
17299 hrq->assoc_qid = cq->queue_id;
17300 hrq->subtype = subtype;
17301 hrq->host_index = 0;
17302 hrq->hba_index = 0;
17303 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
17305 /* now create the data queue */
17306 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17307 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
17308 length, LPFC_SLI4_MBX_EMBED);
17309 bf_set(lpfc_mbox_hdr_version, &shdr->request,
17310 phba->sli4_hba.pc_sli4_params.rqv);
17311 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
17312 bf_set(lpfc_rq_context_rqe_count_1,
17313 &rq_create->u.request.context, hrq->entry_count);
17314 if (subtype == LPFC_NVMET)
17315 rq_create->u.request.context.buffer_size =
17316 LPFC_NVMET_DATA_BUF_SIZE;
17318 rq_create->u.request.context.buffer_size =
17319 LPFC_DATA_BUF_SIZE;
17320 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
17322 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
17323 (PAGE_SIZE/SLI4_PAGE_SIZE));
17325 switch (drq->entry_count) {
17327 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17328 "2536 Unsupported RQ count. (%d)\n",
17330 if (drq->entry_count < 512) {
17334 fallthrough; /* otherwise default to smallest count */
17336 bf_set(lpfc_rq_context_rqe_count,
17337 &rq_create->u.request.context,
17338 LPFC_RQ_RING_SIZE_512);
17341 bf_set(lpfc_rq_context_rqe_count,
17342 &rq_create->u.request.context,
17343 LPFC_RQ_RING_SIZE_1024);
17346 bf_set(lpfc_rq_context_rqe_count,
17347 &rq_create->u.request.context,
17348 LPFC_RQ_RING_SIZE_2048);
17351 bf_set(lpfc_rq_context_rqe_count,
17352 &rq_create->u.request.context,
17353 LPFC_RQ_RING_SIZE_4096);
17356 if (subtype == LPFC_NVMET)
17357 bf_set(lpfc_rq_context_buf_size,
17358 &rq_create->u.request.context,
17359 LPFC_NVMET_DATA_BUF_SIZE);
17361 bf_set(lpfc_rq_context_buf_size,
17362 &rq_create->u.request.context,
17363 LPFC_DATA_BUF_SIZE);
17365 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
17367 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
17369 list_for_each_entry(dmabuf, &drq->page_list, list) {
17370 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
17371 putPaddrLow(dmabuf->phys);
17372 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
17373 putPaddrHigh(dmabuf->phys);
17375 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
17376 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
17377 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17378 /* The IOCTL status is embedded in the mailbox subheader. */
17379 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
17380 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17381 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17382 if (shdr_status || shdr_add_status || rc) {
17386 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
17387 if (drq->queue_id == 0xFFFF) {
17391 drq->type = LPFC_DRQ;
17392 drq->assoc_qid = cq->queue_id;
17393 drq->subtype = subtype;
17394 drq->host_index = 0;
17395 drq->hba_index = 0;
17396 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
17398 /* link the header and data RQs onto the parent cq child list */
17399 list_add_tail(&hrq->list, &cq->child_list);
17400 list_add_tail(&drq->list, &cq->child_list);
17403 mempool_free(mbox, phba->mbox_mem_pool);
17408 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
17409 * @phba: HBA structure that indicates port to create a queue on.
17410 * @hrqp: The queue structure array to use to create the header receive queues.
17411 * @drqp: The queue structure array to use to create the data receive queues.
17412 * @cqp: The completion queue array to bind these receive queues to.
17413 * @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
17415 * This function creates a receive buffer queue pair , as detailed in @hrq and
17416 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
17419 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
17420 * struct is used to get the entry count that is necessary to determine the
17421 * number of pages to use for this queue. The @cq is used to indicate which
17422 * completion queue to bind received buffers that are posted to these queues to.
17423 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
17424 * receive queue pair. This function is asynchronous and will wait for the
17425 * mailbox command to finish before continuing.
17427 * On success this function will return a zero. If unable to allocate enough
17428 * memory this function will return -ENOMEM. If the queue create mailbox command
17429 * fails this function will return -ENXIO.
17432 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
17433 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
17436 struct lpfc_queue *hrq, *drq, *cq;
17437 struct lpfc_mbx_rq_create_v2 *rq_create;
17438 struct lpfc_dmabuf *dmabuf;
17439 LPFC_MBOXQ_t *mbox;
17440 int rc, length, alloclen, status = 0;
17441 int cnt, idx, numrq, page_idx = 0;
17442 uint32_t shdr_status, shdr_add_status;
17443 union lpfc_sli4_cfg_shdr *shdr;
17444 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
17446 numrq = phba->cfg_nvmet_mrq;
17447 /* sanity check on array memory */
17448 if (!hrqp || !drqp || !cqp || !numrq)
17450 if (!phba->sli4_hba.pc_sli4_params.supported)
17451 hw_page_size = SLI4_PAGE_SIZE;
17453 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17457 length = sizeof(struct lpfc_mbx_rq_create_v2);
17458 length += ((2 * numrq * hrqp[0]->page_count) *
17459 sizeof(struct dma_address));
17461 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17462 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
17463 LPFC_SLI4_MBX_NEMBED);
17464 if (alloclen < length) {
17465 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17466 "3099 Allocated DMA memory size (%d) is "
17467 "less than the requested DMA memory size "
17468 "(%d)\n", alloclen, length);
17475 rq_create = mbox->sge_array->addr[0];
17476 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
17478 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
17481 for (idx = 0; idx < numrq; idx++) {
17486 /* sanity check on queue memory */
17487 if (!hrq || !drq || !cq) {
17492 if (hrq->entry_count != drq->entry_count) {
17498 bf_set(lpfc_mbx_rq_create_num_pages,
17499 &rq_create->u.request,
17501 bf_set(lpfc_mbx_rq_create_rq_cnt,
17502 &rq_create->u.request, (numrq * 2));
17503 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
17505 bf_set(lpfc_rq_context_base_cq,
17506 &rq_create->u.request.context,
17508 bf_set(lpfc_rq_context_data_size,
17509 &rq_create->u.request.context,
17510 LPFC_NVMET_DATA_BUF_SIZE);
17511 bf_set(lpfc_rq_context_hdr_size,
17512 &rq_create->u.request.context,
17513 LPFC_HDR_BUF_SIZE);
17514 bf_set(lpfc_rq_context_rqe_count_1,
17515 &rq_create->u.request.context,
17517 bf_set(lpfc_rq_context_rqe_size,
17518 &rq_create->u.request.context,
17520 bf_set(lpfc_rq_context_page_size,
17521 &rq_create->u.request.context,
17522 (PAGE_SIZE/SLI4_PAGE_SIZE));
17525 list_for_each_entry(dmabuf, &hrq->page_list, list) {
17526 memset(dmabuf->virt, 0, hw_page_size);
17527 cnt = page_idx + dmabuf->buffer_tag;
17528 rq_create->u.request.page[cnt].addr_lo =
17529 putPaddrLow(dmabuf->phys);
17530 rq_create->u.request.page[cnt].addr_hi =
17531 putPaddrHigh(dmabuf->phys);
17537 list_for_each_entry(dmabuf, &drq->page_list, list) {
17538 memset(dmabuf->virt, 0, hw_page_size);
17539 cnt = page_idx + dmabuf->buffer_tag;
17540 rq_create->u.request.page[cnt].addr_lo =
17541 putPaddrLow(dmabuf->phys);
17542 rq_create->u.request.page[cnt].addr_hi =
17543 putPaddrHigh(dmabuf->phys);
17548 hrq->db_format = LPFC_DB_RING_FORMAT;
17549 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
17550 hrq->type = LPFC_HRQ;
17551 hrq->assoc_qid = cq->queue_id;
17552 hrq->subtype = subtype;
17553 hrq->host_index = 0;
17554 hrq->hba_index = 0;
17555 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
17557 drq->db_format = LPFC_DB_RING_FORMAT;
17558 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
17559 drq->type = LPFC_DRQ;
17560 drq->assoc_qid = cq->queue_id;
17561 drq->subtype = subtype;
17562 drq->host_index = 0;
17563 drq->hba_index = 0;
17564 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
17566 list_add_tail(&hrq->list, &cq->child_list);
17567 list_add_tail(&drq->list, &cq->child_list);
17570 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17571 /* The IOCTL status is embedded in the mailbox subheader. */
17572 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17573 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17574 if (shdr_status || shdr_add_status || rc) {
17575 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17576 "3120 RQ_CREATE mailbox failed with "
17577 "status x%x add_status x%x, mbx status x%x\n",
17578 shdr_status, shdr_add_status, rc);
17582 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
17583 if (rc == 0xFFFF) {
17588 /* Initialize all RQs with associated queue id */
17589 for (idx = 0; idx < numrq; idx++) {
17591 hrq->queue_id = rc + (2 * idx);
17593 drq->queue_id = rc + (2 * idx) + 1;
17597 lpfc_sli4_mbox_cmd_free(phba, mbox);
17602 * lpfc_eq_destroy - Destroy an event Queue on the HBA
17603 * @phba: HBA structure that indicates port to destroy a queue on.
17604 * @eq: The queue structure associated with the queue to destroy.
17606 * This function destroys a queue, as detailed in @eq by sending an mailbox
17607 * command, specific to the type of queue, to the HBA.
17609 * The @eq struct is used to get the queue ID of the queue to destroy.
17611 * On success this function will return a zero. If the queue destroy mailbox
17612 * command fails this function will return -ENXIO.
17615 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
17617 LPFC_MBOXQ_t *mbox;
17618 int rc, length, status = 0;
17619 uint32_t shdr_status, shdr_add_status;
17620 union lpfc_sli4_cfg_shdr *shdr;
17622 /* sanity check on queue memory */
17626 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
17629 length = (sizeof(struct lpfc_mbx_eq_destroy) -
17630 sizeof(struct lpfc_sli4_cfg_mhdr));
17631 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
17632 LPFC_MBOX_OPCODE_EQ_DESTROY,
17633 length, LPFC_SLI4_MBX_EMBED);
17634 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
17636 mbox->vport = eq->phba->pport;
17637 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17639 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
17640 /* The IOCTL status is embedded in the mailbox subheader. */
17641 shdr = (union lpfc_sli4_cfg_shdr *)
17642 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
17643 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17644 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17645 if (shdr_status || shdr_add_status || rc) {
17646 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17647 "2505 EQ_DESTROY mailbox failed with "
17648 "status x%x add_status x%x, mbx status x%x\n",
17649 shdr_status, shdr_add_status, rc);
17653 /* Remove eq from any list */
17654 list_del_init(&eq->list);
17655 mempool_free(mbox, eq->phba->mbox_mem_pool);
17660 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
17661 * @phba: HBA structure that indicates port to destroy a queue on.
17662 * @cq: The queue structure associated with the queue to destroy.
17664 * This function destroys a queue, as detailed in @cq by sending an mailbox
17665 * command, specific to the type of queue, to the HBA.
17667 * The @cq struct is used to get the queue ID of the queue to destroy.
17669 * On success this function will return a zero. If the queue destroy mailbox
17670 * command fails this function will return -ENXIO.
17673 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
17675 LPFC_MBOXQ_t *mbox;
17676 int rc, length, status = 0;
17677 uint32_t shdr_status, shdr_add_status;
17678 union lpfc_sli4_cfg_shdr *shdr;
17680 /* sanity check on queue memory */
17683 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
17686 length = (sizeof(struct lpfc_mbx_cq_destroy) -
17687 sizeof(struct lpfc_sli4_cfg_mhdr));
17688 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
17689 LPFC_MBOX_OPCODE_CQ_DESTROY,
17690 length, LPFC_SLI4_MBX_EMBED);
17691 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
17693 mbox->vport = cq->phba->pport;
17694 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17695 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
17696 /* The IOCTL status is embedded in the mailbox subheader. */
17697 shdr = (union lpfc_sli4_cfg_shdr *)
17698 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
17699 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17700 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17701 if (shdr_status || shdr_add_status || rc) {
17702 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17703 "2506 CQ_DESTROY mailbox failed with "
17704 "status x%x add_status x%x, mbx status x%x\n",
17705 shdr_status, shdr_add_status, rc);
17708 /* Remove cq from any list */
17709 list_del_init(&cq->list);
17710 mempool_free(mbox, cq->phba->mbox_mem_pool);
17715 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
17716 * @phba: HBA structure that indicates port to destroy a queue on.
17717 * @mq: The queue structure associated with the queue to destroy.
17719 * This function destroys a queue, as detailed in @mq by sending an mailbox
17720 * command, specific to the type of queue, to the HBA.
17722 * The @mq struct is used to get the queue ID of the queue to destroy.
17724 * On success this function will return a zero. If the queue destroy mailbox
17725 * command fails this function will return -ENXIO.
17728 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
17730 LPFC_MBOXQ_t *mbox;
17731 int rc, length, status = 0;
17732 uint32_t shdr_status, shdr_add_status;
17733 union lpfc_sli4_cfg_shdr *shdr;
17735 /* sanity check on queue memory */
17738 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
17741 length = (sizeof(struct lpfc_mbx_mq_destroy) -
17742 sizeof(struct lpfc_sli4_cfg_mhdr));
17743 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
17744 LPFC_MBOX_OPCODE_MQ_DESTROY,
17745 length, LPFC_SLI4_MBX_EMBED);
17746 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
17748 mbox->vport = mq->phba->pport;
17749 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17750 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
17751 /* The IOCTL status is embedded in the mailbox subheader. */
17752 shdr = (union lpfc_sli4_cfg_shdr *)
17753 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
17754 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17755 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17756 if (shdr_status || shdr_add_status || rc) {
17757 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17758 "2507 MQ_DESTROY mailbox failed with "
17759 "status x%x add_status x%x, mbx status x%x\n",
17760 shdr_status, shdr_add_status, rc);
17763 /* Remove mq from any list */
17764 list_del_init(&mq->list);
17765 mempool_free(mbox, mq->phba->mbox_mem_pool);
17770 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
17771 * @phba: HBA structure that indicates port to destroy a queue on.
17772 * @wq: The queue structure associated with the queue to destroy.
17774 * This function destroys a queue, as detailed in @wq by sending an mailbox
17775 * command, specific to the type of queue, to the HBA.
17777 * The @wq struct is used to get the queue ID of the queue to destroy.
17779 * On success this function will return a zero. If the queue destroy mailbox
17780 * command fails this function will return -ENXIO.
17783 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
17785 LPFC_MBOXQ_t *mbox;
17786 int rc, length, status = 0;
17787 uint32_t shdr_status, shdr_add_status;
17788 union lpfc_sli4_cfg_shdr *shdr;
17790 /* sanity check on queue memory */
17793 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
17796 length = (sizeof(struct lpfc_mbx_wq_destroy) -
17797 sizeof(struct lpfc_sli4_cfg_mhdr));
17798 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17799 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
17800 length, LPFC_SLI4_MBX_EMBED);
17801 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
17803 mbox->vport = wq->phba->pport;
17804 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17805 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
17806 shdr = (union lpfc_sli4_cfg_shdr *)
17807 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
17808 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17809 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17810 if (shdr_status || shdr_add_status || rc) {
17811 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17812 "2508 WQ_DESTROY mailbox failed with "
17813 "status x%x add_status x%x, mbx status x%x\n",
17814 shdr_status, shdr_add_status, rc);
17817 /* Remove wq from any list */
17818 list_del_init(&wq->list);
17821 mempool_free(mbox, wq->phba->mbox_mem_pool);
17826 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
17827 * @phba: HBA structure that indicates port to destroy a queue on.
17828 * @hrq: The queue structure associated with the queue to destroy.
17829 * @drq: The queue structure associated with the queue to destroy.
17831 * This function destroys a queue, as detailed in @rq by sending an mailbox
17832 * command, specific to the type of queue, to the HBA.
17834 * The @rq struct is used to get the queue ID of the queue to destroy.
17836 * On success this function will return a zero. If the queue destroy mailbox
17837 * command fails this function will return -ENXIO.
17840 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
17841 struct lpfc_queue *drq)
17843 LPFC_MBOXQ_t *mbox;
17844 int rc, length, status = 0;
17845 uint32_t shdr_status, shdr_add_status;
17846 union lpfc_sli4_cfg_shdr *shdr;
17848 /* sanity check on queue memory */
17851 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
17854 length = (sizeof(struct lpfc_mbx_rq_destroy) -
17855 sizeof(struct lpfc_sli4_cfg_mhdr));
17856 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17857 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
17858 length, LPFC_SLI4_MBX_EMBED);
17859 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
17861 mbox->vport = hrq->phba->pport;
17862 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17863 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
17864 /* The IOCTL status is embedded in the mailbox subheader. */
17865 shdr = (union lpfc_sli4_cfg_shdr *)
17866 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
17867 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17868 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17869 if (shdr_status || shdr_add_status || rc) {
17870 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17871 "2509 RQ_DESTROY mailbox failed with "
17872 "status x%x add_status x%x, mbx status x%x\n",
17873 shdr_status, shdr_add_status, rc);
17874 mempool_free(mbox, hrq->phba->mbox_mem_pool);
17877 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
17879 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
17880 shdr = (union lpfc_sli4_cfg_shdr *)
17881 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
17882 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17883 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17884 if (shdr_status || shdr_add_status || rc) {
17885 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17886 "2510 RQ_DESTROY mailbox failed with "
17887 "status x%x add_status x%x, mbx status x%x\n",
17888 shdr_status, shdr_add_status, rc);
17891 list_del_init(&hrq->list);
17892 list_del_init(&drq->list);
17893 mempool_free(mbox, hrq->phba->mbox_mem_pool);
17898 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
17899 * @phba: The virtual port for which this call being executed.
17900 * @pdma_phys_addr0: Physical address of the 1st SGL page.
17901 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
17902 * @xritag: the xritag that ties this io to the SGL pages.
17904 * This routine will post the sgl pages for the IO that has the xritag
17905 * that is in the iocbq structure. The xritag is assigned during iocbq
17906 * creation and persists for as long as the driver is loaded.
17907 * if the caller has fewer than 256 scatter gather segments to map then
17908 * pdma_phys_addr1 should be 0.
17909 * If the caller needs to map more than 256 scatter gather segment then
17910 * pdma_phys_addr1 should be a valid physical address.
17911 * physical address for SGLs must be 64 byte aligned.
17912 * If you are going to map 2 SGL's then the first one must have 256 entries
17913 * the second sgl can have between 1 and 256 entries.
17917 * -ENXIO, -ENOMEM - Failure
17920 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
17921 dma_addr_t pdma_phys_addr0,
17922 dma_addr_t pdma_phys_addr1,
17925 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
17926 LPFC_MBOXQ_t *mbox;
17928 uint32_t shdr_status, shdr_add_status;
17930 union lpfc_sli4_cfg_shdr *shdr;
17932 if (xritag == NO_XRI) {
17933 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17934 "0364 Invalid param:\n");
17938 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17942 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17943 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
17944 sizeof(struct lpfc_mbx_post_sgl_pages) -
17945 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
17947 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
17948 &mbox->u.mqe.un.post_sgl_pages;
17949 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
17950 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
17952 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
17953 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
17954 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
17955 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
17957 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
17958 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
17959 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
17960 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
17961 if (!phba->sli4_hba.intr_enable)
17962 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17964 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
17965 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
17967 /* The IOCTL status is embedded in the mailbox subheader. */
17968 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
17969 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17970 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17971 if (!phba->sli4_hba.intr_enable)
17972 mempool_free(mbox, phba->mbox_mem_pool);
17973 else if (rc != MBX_TIMEOUT)
17974 mempool_free(mbox, phba->mbox_mem_pool);
17975 if (shdr_status || shdr_add_status || rc) {
17976 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
17977 "2511 POST_SGL mailbox failed with "
17978 "status x%x add_status x%x, mbx status x%x\n",
17979 shdr_status, shdr_add_status, rc);
17985 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
17986 * @phba: pointer to lpfc hba data structure.
17988 * This routine is invoked to post rpi header templates to the
17989 * HBA consistent with the SLI-4 interface spec. This routine
17990 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17991 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17994 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
17995 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
17998 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
18003 * Fetch the next logical xri. Because this index is logical,
18004 * the driver starts at 0 each time.
18006 spin_lock_irq(&phba->hbalock);
18007 xri = find_first_zero_bit(phba->sli4_hba.xri_bmask,
18008 phba->sli4_hba.max_cfg_param.max_xri);
18009 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
18010 spin_unlock_irq(&phba->hbalock);
18013 set_bit(xri, phba->sli4_hba.xri_bmask);
18014 phba->sli4_hba.max_cfg_param.xri_used++;
18016 spin_unlock_irq(&phba->hbalock);
18021 * __lpfc_sli4_free_xri - Release an xri for reuse.
18022 * @phba: pointer to lpfc hba data structure.
18023 * @xri: xri to release.
18025 * This routine is invoked to release an xri to the pool of
18026 * available rpis maintained by the driver.
18029 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
18031 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
18032 phba->sli4_hba.max_cfg_param.xri_used--;
18037 * lpfc_sli4_free_xri - Release an xri for reuse.
18038 * @phba: pointer to lpfc hba data structure.
18039 * @xri: xri to release.
18041 * This routine is invoked to release an xri to the pool of
18042 * available rpis maintained by the driver.
18045 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
18047 spin_lock_irq(&phba->hbalock);
18048 __lpfc_sli4_free_xri(phba, xri);
18049 spin_unlock_irq(&phba->hbalock);
18053 * lpfc_sli4_next_xritag - Get an xritag for the io
18054 * @phba: Pointer to HBA context object.
18056 * This function gets an xritag for the iocb. If there is no unused xritag
18057 * it will return 0xffff.
18058 * The function returns the allocated xritag if successful, else returns zero.
18059 * Zero is not a valid xritag.
18060 * The caller is not required to hold any lock.
18063 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
18065 uint16_t xri_index;
18067 xri_index = lpfc_sli4_alloc_xri(phba);
18068 if (xri_index == NO_XRI)
18069 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
18070 "2004 Failed to allocate XRI.last XRITAG is %d"
18071 " Max XRI is %d, Used XRI is %d\n",
18073 phba->sli4_hba.max_cfg_param.max_xri,
18074 phba->sli4_hba.max_cfg_param.xri_used);
18079 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
18080 * @phba: pointer to lpfc hba data structure.
18081 * @post_sgl_list: pointer to els sgl entry list.
18082 * @post_cnt: number of els sgl entries on the list.
18084 * This routine is invoked to post a block of driver's sgl pages to the
18085 * HBA using non-embedded mailbox command. No Lock is held. This routine
18086 * is only called when the driver is loading and after all IO has been
18090 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
18091 struct list_head *post_sgl_list,
18094 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
18095 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
18096 struct sgl_page_pairs *sgl_pg_pairs;
18098 LPFC_MBOXQ_t *mbox;
18099 uint32_t reqlen, alloclen, pg_pairs;
18101 uint16_t xritag_start = 0;
18103 uint32_t shdr_status, shdr_add_status;
18104 union lpfc_sli4_cfg_shdr *shdr;
18106 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
18107 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
18108 if (reqlen > SLI4_PAGE_SIZE) {
18109 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18110 "2559 Block sgl registration required DMA "
18111 "size (%d) great than a page\n", reqlen);
18115 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18119 /* Allocate DMA memory and set up the non-embedded mailbox command */
18120 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18121 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
18122 LPFC_SLI4_MBX_NEMBED);
18124 if (alloclen < reqlen) {
18125 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18126 "0285 Allocated DMA memory size (%d) is "
18127 "less than the requested DMA memory "
18128 "size (%d)\n", alloclen, reqlen);
18129 lpfc_sli4_mbox_cmd_free(phba, mbox);
18132 /* Set up the SGL pages in the non-embedded DMA pages */
18133 viraddr = mbox->sge_array->addr[0];
18134 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
18135 sgl_pg_pairs = &sgl->sgl_pg_pairs;
18138 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
18139 /* Set up the sge entry */
18140 sgl_pg_pairs->sgl_pg0_addr_lo =
18141 cpu_to_le32(putPaddrLow(sglq_entry->phys));
18142 sgl_pg_pairs->sgl_pg0_addr_hi =
18143 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
18144 sgl_pg_pairs->sgl_pg1_addr_lo =
18145 cpu_to_le32(putPaddrLow(0));
18146 sgl_pg_pairs->sgl_pg1_addr_hi =
18147 cpu_to_le32(putPaddrHigh(0));
18149 /* Keep the first xritag on the list */
18151 xritag_start = sglq_entry->sli4_xritag;
18156 /* Complete initialization and perform endian conversion. */
18157 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
18158 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
18159 sgl->word0 = cpu_to_le32(sgl->word0);
18161 if (!phba->sli4_hba.intr_enable)
18162 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
18164 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
18165 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
18167 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
18168 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18169 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18170 if (!phba->sli4_hba.intr_enable)
18171 lpfc_sli4_mbox_cmd_free(phba, mbox);
18172 else if (rc != MBX_TIMEOUT)
18173 lpfc_sli4_mbox_cmd_free(phba, mbox);
18174 if (shdr_status || shdr_add_status || rc) {
18175 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18176 "2513 POST_SGL_BLOCK mailbox command failed "
18177 "status x%x add_status x%x mbx status x%x\n",
18178 shdr_status, shdr_add_status, rc);
18185 * lpfc_sli4_post_io_sgl_block - post a block of nvme sgl list to firmware
18186 * @phba: pointer to lpfc hba data structure.
18187 * @nblist: pointer to nvme buffer list.
18188 * @count: number of scsi buffers on the list.
18190 * This routine is invoked to post a block of @count scsi sgl pages from a
18191 * SCSI buffer list @nblist to the HBA using non-embedded mailbox command.
18196 lpfc_sli4_post_io_sgl_block(struct lpfc_hba *phba, struct list_head *nblist,
18199 struct lpfc_io_buf *lpfc_ncmd;
18200 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
18201 struct sgl_page_pairs *sgl_pg_pairs;
18203 LPFC_MBOXQ_t *mbox;
18204 uint32_t reqlen, alloclen, pg_pairs;
18206 uint16_t xritag_start = 0;
18208 uint32_t shdr_status, shdr_add_status;
18209 dma_addr_t pdma_phys_bpl1;
18210 union lpfc_sli4_cfg_shdr *shdr;
18212 /* Calculate the requested length of the dma memory */
18213 reqlen = count * sizeof(struct sgl_page_pairs) +
18214 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
18215 if (reqlen > SLI4_PAGE_SIZE) {
18216 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
18217 "6118 Block sgl registration required DMA "
18218 "size (%d) great than a page\n", reqlen);
18221 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18223 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18224 "6119 Failed to allocate mbox cmd memory\n");
18228 /* Allocate DMA memory and set up the non-embedded mailbox command */
18229 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18230 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
18231 reqlen, LPFC_SLI4_MBX_NEMBED);
18233 if (alloclen < reqlen) {
18234 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18235 "6120 Allocated DMA memory size (%d) is "
18236 "less than the requested DMA memory "
18237 "size (%d)\n", alloclen, reqlen);
18238 lpfc_sli4_mbox_cmd_free(phba, mbox);
18242 /* Get the first SGE entry from the non-embedded DMA memory */
18243 viraddr = mbox->sge_array->addr[0];
18245 /* Set up the SGL pages in the non-embedded DMA pages */
18246 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
18247 sgl_pg_pairs = &sgl->sgl_pg_pairs;
18250 list_for_each_entry(lpfc_ncmd, nblist, list) {
18251 /* Set up the sge entry */
18252 sgl_pg_pairs->sgl_pg0_addr_lo =
18253 cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl));
18254 sgl_pg_pairs->sgl_pg0_addr_hi =
18255 cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl));
18256 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
18257 pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl +
18260 pdma_phys_bpl1 = 0;
18261 sgl_pg_pairs->sgl_pg1_addr_lo =
18262 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
18263 sgl_pg_pairs->sgl_pg1_addr_hi =
18264 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
18265 /* Keep the first xritag on the list */
18267 xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag;
18271 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
18272 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
18273 /* Perform endian conversion if necessary */
18274 sgl->word0 = cpu_to_le32(sgl->word0);
18276 if (!phba->sli4_hba.intr_enable) {
18277 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
18279 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
18280 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
18282 shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr;
18283 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18284 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18285 if (!phba->sli4_hba.intr_enable)
18286 lpfc_sli4_mbox_cmd_free(phba, mbox);
18287 else if (rc != MBX_TIMEOUT)
18288 lpfc_sli4_mbox_cmd_free(phba, mbox);
18289 if (shdr_status || shdr_add_status || rc) {
18290 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18291 "6125 POST_SGL_BLOCK mailbox command failed "
18292 "status x%x add_status x%x mbx status x%x\n",
18293 shdr_status, shdr_add_status, rc);
18300 * lpfc_sli4_post_io_sgl_list - Post blocks of nvme buffer sgls from a list
18301 * @phba: pointer to lpfc hba data structure.
18302 * @post_nblist: pointer to the nvme buffer list.
18303 * @sb_count: number of nvme buffers.
18305 * This routine walks a list of nvme buffers that was passed in. It attempts
18306 * to construct blocks of nvme buffer sgls which contains contiguous xris and
18307 * uses the non-embedded SGL block post mailbox commands to post to the port.
18308 * For single NVME buffer sgl with non-contiguous xri, if any, it shall use
18309 * embedded SGL post mailbox command for posting. The @post_nblist passed in
18310 * must be local list, thus no lock is needed when manipulate the list.
18312 * Returns: 0 = failure, non-zero number of successfully posted buffers.
18315 lpfc_sli4_post_io_sgl_list(struct lpfc_hba *phba,
18316 struct list_head *post_nblist, int sb_count)
18318 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
18319 int status, sgl_size;
18320 int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0;
18321 dma_addr_t pdma_phys_sgl1;
18322 int last_xritag = NO_XRI;
18324 LIST_HEAD(prep_nblist);
18325 LIST_HEAD(blck_nblist);
18326 LIST_HEAD(nvme_nblist);
18332 sgl_size = phba->cfg_sg_dma_buf_size;
18333 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) {
18334 list_del_init(&lpfc_ncmd->list);
18336 if ((last_xritag != NO_XRI) &&
18337 (lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) {
18338 /* a hole in xri block, form a sgl posting block */
18339 list_splice_init(&prep_nblist, &blck_nblist);
18340 post_cnt = block_cnt - 1;
18341 /* prepare list for next posting block */
18342 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
18345 /* prepare list for next posting block */
18346 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
18347 /* enough sgls for non-embed sgl mbox command */
18348 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
18349 list_splice_init(&prep_nblist, &blck_nblist);
18350 post_cnt = block_cnt;
18355 last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
18357 /* end of repost sgl list condition for NVME buffers */
18358 if (num_posting == sb_count) {
18359 if (post_cnt == 0) {
18360 /* last sgl posting block */
18361 list_splice_init(&prep_nblist, &blck_nblist);
18362 post_cnt = block_cnt;
18363 } else if (block_cnt == 1) {
18364 /* last single sgl with non-contiguous xri */
18365 if (sgl_size > SGL_PAGE_SIZE)
18367 lpfc_ncmd->dma_phys_sgl +
18370 pdma_phys_sgl1 = 0;
18371 cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
18372 status = lpfc_sli4_post_sgl(
18373 phba, lpfc_ncmd->dma_phys_sgl,
18374 pdma_phys_sgl1, cur_xritag);
18376 /* Post error. Buffer unavailable. */
18377 lpfc_ncmd->flags |=
18378 LPFC_SBUF_NOT_POSTED;
18380 /* Post success. Bffer available. */
18381 lpfc_ncmd->flags &=
18382 ~LPFC_SBUF_NOT_POSTED;
18383 lpfc_ncmd->status = IOSTAT_SUCCESS;
18386 /* success, put on NVME buffer sgl list */
18387 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
18391 /* continue until a nembed page worth of sgls */
18395 /* post block of NVME buffer list sgls */
18396 status = lpfc_sli4_post_io_sgl_block(phba, &blck_nblist,
18399 /* don't reset xirtag due to hole in xri block */
18400 if (block_cnt == 0)
18401 last_xritag = NO_XRI;
18403 /* reset NVME buffer post count for next round of posting */
18406 /* put posted NVME buffer-sgl posted on NVME buffer sgl list */
18407 while (!list_empty(&blck_nblist)) {
18408 list_remove_head(&blck_nblist, lpfc_ncmd,
18409 struct lpfc_io_buf, list);
18411 /* Post error. Mark buffer unavailable. */
18412 lpfc_ncmd->flags |= LPFC_SBUF_NOT_POSTED;
18414 /* Post success, Mark buffer available. */
18415 lpfc_ncmd->flags &= ~LPFC_SBUF_NOT_POSTED;
18416 lpfc_ncmd->status = IOSTAT_SUCCESS;
18419 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
18422 /* Push NVME buffers with sgl posted to the available list */
18423 lpfc_io_buf_replenish(phba, &nvme_nblist);
18429 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
18430 * @phba: pointer to lpfc_hba struct that the frame was received on
18431 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
18433 * This function checks the fields in the @fc_hdr to see if the FC frame is a
18434 * valid type of frame that the LPFC driver will handle. This function will
18435 * return a zero if the frame is a valid frame or a non zero value when the
18436 * frame does not pass the check.
18439 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
18441 /* make rctl_names static to save stack space */
18442 struct fc_vft_header *fc_vft_hdr;
18443 uint32_t *header = (uint32_t *) fc_hdr;
18445 #define FC_RCTL_MDS_DIAGS 0xF4
18447 switch (fc_hdr->fh_r_ctl) {
18448 case FC_RCTL_DD_UNCAT: /* uncategorized information */
18449 case FC_RCTL_DD_SOL_DATA: /* solicited data */
18450 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
18451 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
18452 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
18453 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
18454 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
18455 case FC_RCTL_DD_CMD_STATUS: /* command status */
18456 case FC_RCTL_ELS_REQ: /* extended link services request */
18457 case FC_RCTL_ELS_REP: /* extended link services reply */
18458 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
18459 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
18460 case FC_RCTL_BA_ABTS: /* basic link service abort */
18461 case FC_RCTL_BA_RMC: /* remove connection */
18462 case FC_RCTL_BA_ACC: /* basic accept */
18463 case FC_RCTL_BA_RJT: /* basic reject */
18464 case FC_RCTL_BA_PRMT:
18465 case FC_RCTL_ACK_1: /* acknowledge_1 */
18466 case FC_RCTL_ACK_0: /* acknowledge_0 */
18467 case FC_RCTL_P_RJT: /* port reject */
18468 case FC_RCTL_F_RJT: /* fabric reject */
18469 case FC_RCTL_P_BSY: /* port busy */
18470 case FC_RCTL_F_BSY: /* fabric busy to data frame */
18471 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
18472 case FC_RCTL_LCR: /* link credit reset */
18473 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
18474 case FC_RCTL_END: /* end */
18476 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
18477 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
18478 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
18479 return lpfc_fc_frame_check(phba, fc_hdr);
18480 case FC_RCTL_BA_NOP: /* basic link service NOP */
18485 switch (fc_hdr->fh_type) {
18498 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
18499 "2538 Received frame rctl:x%x, type:x%x, "
18500 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
18501 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
18502 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
18503 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
18504 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
18505 be32_to_cpu(header[6]));
18508 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
18509 "2539 Dropped frame rctl:x%x type:x%x\n",
18510 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
18515 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
18516 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
18518 * This function processes the FC header to retrieve the VFI from the VF
18519 * header, if one exists. This function will return the VFI if one exists
18520 * or 0 if no VSAN Header exists.
18523 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
18525 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
18527 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
18529 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
18533 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
18534 * @phba: Pointer to the HBA structure to search for the vport on
18535 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
18536 * @fcfi: The FC Fabric ID that the frame came from
18537 * @did: Destination ID to match against
18539 * This function searches the @phba for a vport that matches the content of the
18540 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
18541 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
18542 * returns the matching vport pointer or NULL if unable to match frame to a
18545 static struct lpfc_vport *
18546 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
18547 uint16_t fcfi, uint32_t did)
18549 struct lpfc_vport **vports;
18550 struct lpfc_vport *vport = NULL;
18553 if (did == Fabric_DID)
18554 return phba->pport;
18555 if ((phba->pport->fc_flag & FC_PT2PT) &&
18556 !(phba->link_state == LPFC_HBA_READY))
18557 return phba->pport;
18559 vports = lpfc_create_vport_work_array(phba);
18560 if (vports != NULL) {
18561 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
18562 if (phba->fcf.fcfi == fcfi &&
18563 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
18564 vports[i]->fc_myDID == did) {
18570 lpfc_destroy_vport_work_array(phba, vports);
18575 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
18576 * @vport: The vport to work on.
18578 * This function updates the receive sequence time stamp for this vport. The
18579 * receive sequence time stamp indicates the time that the last frame of the
18580 * the sequence that has been idle for the longest amount of time was received.
18581 * the driver uses this time stamp to indicate if any received sequences have
18585 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
18587 struct lpfc_dmabuf *h_buf;
18588 struct hbq_dmabuf *dmabuf = NULL;
18590 /* get the oldest sequence on the rcv list */
18591 h_buf = list_get_first(&vport->rcv_buffer_list,
18592 struct lpfc_dmabuf, list);
18595 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18596 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
18600 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
18601 * @vport: The vport that the received sequences were sent to.
18603 * This function cleans up all outstanding received sequences. This is called
18604 * by the driver when a link event or user action invalidates all the received
18608 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
18610 struct lpfc_dmabuf *h_buf, *hnext;
18611 struct lpfc_dmabuf *d_buf, *dnext;
18612 struct hbq_dmabuf *dmabuf = NULL;
18614 /* start with the oldest sequence on the rcv list */
18615 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
18616 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18617 list_del_init(&dmabuf->hbuf.list);
18618 list_for_each_entry_safe(d_buf, dnext,
18619 &dmabuf->dbuf.list, list) {
18620 list_del_init(&d_buf->list);
18621 lpfc_in_buf_free(vport->phba, d_buf);
18623 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
18628 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
18629 * @vport: The vport that the received sequences were sent to.
18631 * This function determines whether any received sequences have timed out by
18632 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
18633 * indicates that there is at least one timed out sequence this routine will
18634 * go through the received sequences one at a time from most inactive to most
18635 * active to determine which ones need to be cleaned up. Once it has determined
18636 * that a sequence needs to be cleaned up it will simply free up the resources
18637 * without sending an abort.
18640 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
18642 struct lpfc_dmabuf *h_buf, *hnext;
18643 struct lpfc_dmabuf *d_buf, *dnext;
18644 struct hbq_dmabuf *dmabuf = NULL;
18645 unsigned long timeout;
18646 int abort_count = 0;
18648 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
18649 vport->rcv_buffer_time_stamp);
18650 if (list_empty(&vport->rcv_buffer_list) ||
18651 time_before(jiffies, timeout))
18653 /* start with the oldest sequence on the rcv list */
18654 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
18655 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18656 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
18657 dmabuf->time_stamp);
18658 if (time_before(jiffies, timeout))
18661 list_del_init(&dmabuf->hbuf.list);
18662 list_for_each_entry_safe(d_buf, dnext,
18663 &dmabuf->dbuf.list, list) {
18664 list_del_init(&d_buf->list);
18665 lpfc_in_buf_free(vport->phba, d_buf);
18667 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
18670 lpfc_update_rcv_time_stamp(vport);
18674 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
18675 * @vport: pointer to a vitural port
18676 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
18678 * This function searches through the existing incomplete sequences that have
18679 * been sent to this @vport. If the frame matches one of the incomplete
18680 * sequences then the dbuf in the @dmabuf is added to the list of frames that
18681 * make up that sequence. If no sequence is found that matches this frame then
18682 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
18683 * This function returns a pointer to the first dmabuf in the sequence list that
18684 * the frame was linked to.
18686 static struct hbq_dmabuf *
18687 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
18689 struct fc_frame_header *new_hdr;
18690 struct fc_frame_header *temp_hdr;
18691 struct lpfc_dmabuf *d_buf;
18692 struct lpfc_dmabuf *h_buf;
18693 struct hbq_dmabuf *seq_dmabuf = NULL;
18694 struct hbq_dmabuf *temp_dmabuf = NULL;
18697 INIT_LIST_HEAD(&dmabuf->dbuf.list);
18698 dmabuf->time_stamp = jiffies;
18699 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18701 /* Use the hdr_buf to find the sequence that this frame belongs to */
18702 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
18703 temp_hdr = (struct fc_frame_header *)h_buf->virt;
18704 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
18705 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
18706 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
18708 /* found a pending sequence that matches this frame */
18709 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18714 * This indicates first frame received for this sequence.
18715 * Queue the buffer on the vport's rcv_buffer_list.
18717 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
18718 lpfc_update_rcv_time_stamp(vport);
18721 temp_hdr = seq_dmabuf->hbuf.virt;
18722 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
18723 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
18724 list_del_init(&seq_dmabuf->hbuf.list);
18725 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
18726 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
18727 lpfc_update_rcv_time_stamp(vport);
18730 /* move this sequence to the tail to indicate a young sequence */
18731 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
18732 seq_dmabuf->time_stamp = jiffies;
18733 lpfc_update_rcv_time_stamp(vport);
18734 if (list_empty(&seq_dmabuf->dbuf.list)) {
18735 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
18738 /* find the correct place in the sequence to insert this frame */
18739 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
18741 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
18742 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
18744 * If the frame's sequence count is greater than the frame on
18745 * the list then insert the frame right after this frame
18747 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
18748 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
18749 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
18754 if (&d_buf->list == &seq_dmabuf->dbuf.list)
18756 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
18765 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
18766 * @vport: pointer to a vitural port
18767 * @dmabuf: pointer to a dmabuf that describes the FC sequence
18769 * This function tries to abort from the partially assembed sequence, described
18770 * by the information from basic abbort @dmabuf. It checks to see whether such
18771 * partially assembled sequence held by the driver. If so, it shall free up all
18772 * the frames from the partially assembled sequence.
18775 * true -- if there is matching partially assembled sequence present and all
18776 * the frames freed with the sequence;
18777 * false -- if there is no matching partially assembled sequence present so
18778 * nothing got aborted in the lower layer driver
18781 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
18782 struct hbq_dmabuf *dmabuf)
18784 struct fc_frame_header *new_hdr;
18785 struct fc_frame_header *temp_hdr;
18786 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
18787 struct hbq_dmabuf *seq_dmabuf = NULL;
18789 /* Use the hdr_buf to find the sequence that matches this frame */
18790 INIT_LIST_HEAD(&dmabuf->dbuf.list);
18791 INIT_LIST_HEAD(&dmabuf->hbuf.list);
18792 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18793 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
18794 temp_hdr = (struct fc_frame_header *)h_buf->virt;
18795 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
18796 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
18797 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
18799 /* found a pending sequence that matches this frame */
18800 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
18804 /* Free up all the frames from the partially assembled sequence */
18806 list_for_each_entry_safe(d_buf, n_buf,
18807 &seq_dmabuf->dbuf.list, list) {
18808 list_del_init(&d_buf->list);
18809 lpfc_in_buf_free(vport->phba, d_buf);
18817 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
18818 * @vport: pointer to a vitural port
18819 * @dmabuf: pointer to a dmabuf that describes the FC sequence
18821 * This function tries to abort from the assembed sequence from upper level
18822 * protocol, described by the information from basic abbort @dmabuf. It
18823 * checks to see whether such pending context exists at upper level protocol.
18824 * If so, it shall clean up the pending context.
18827 * true -- if there is matching pending context of the sequence cleaned
18829 * false -- if there is no matching pending context of the sequence present
18833 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
18835 struct lpfc_hba *phba = vport->phba;
18838 /* Accepting abort at ulp with SLI4 only */
18839 if (phba->sli_rev < LPFC_SLI_REV4)
18842 /* Register all caring upper level protocols to attend abort */
18843 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
18851 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
18852 * @phba: Pointer to HBA context object.
18853 * @cmd_iocbq: pointer to the command iocbq structure.
18854 * @rsp_iocbq: pointer to the response iocbq structure.
18856 * This function handles the sequence abort response iocb command complete
18857 * event. It properly releases the memory allocated to the sequence abort
18861 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
18862 struct lpfc_iocbq *cmd_iocbq,
18863 struct lpfc_iocbq *rsp_iocbq)
18866 lpfc_nlp_put(cmd_iocbq->ndlp);
18867 lpfc_sli_release_iocbq(phba, cmd_iocbq);
18870 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
18871 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
18872 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
18873 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
18874 get_job_ulpstatus(phba, rsp_iocbq),
18875 get_job_word4(phba, rsp_iocbq));
18879 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
18880 * @phba: Pointer to HBA context object.
18881 * @xri: xri id in transaction.
18883 * This function validates the xri maps to the known range of XRIs allocated an
18884 * used by the driver.
18887 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
18892 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
18893 if (xri == phba->sli4_hba.xri_ids[i])
18900 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
18901 * @vport: pointer to a virtual port.
18902 * @fc_hdr: pointer to a FC frame header.
18903 * @aborted: was the partially assembled receive sequence successfully aborted
18905 * This function sends a basic response to a previous unsol sequence abort
18906 * event after aborting the sequence handling.
18909 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
18910 struct fc_frame_header *fc_hdr, bool aborted)
18912 struct lpfc_hba *phba = vport->phba;
18913 struct lpfc_iocbq *ctiocb = NULL;
18914 struct lpfc_nodelist *ndlp;
18915 uint16_t oxid, rxid, xri, lxri;
18916 uint32_t sid, fctl;
18917 union lpfc_wqe128 *icmd;
18920 if (!lpfc_is_link_up(phba))
18923 sid = sli4_sid_from_fc_hdr(fc_hdr);
18924 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
18925 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
18927 ndlp = lpfc_findnode_did(vport, sid);
18929 ndlp = lpfc_nlp_init(vport, sid);
18931 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
18932 "1268 Failed to allocate ndlp for "
18933 "oxid:x%x SID:x%x\n", oxid, sid);
18936 /* Put ndlp onto pport node list */
18937 lpfc_enqueue_node(vport, ndlp);
18940 /* Allocate buffer for rsp iocb */
18941 ctiocb = lpfc_sli_get_iocbq(phba);
18945 icmd = &ctiocb->wqe;
18947 /* Extract the F_CTL field from FC_HDR */
18948 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
18950 ctiocb->ndlp = lpfc_nlp_get(ndlp);
18951 if (!ctiocb->ndlp) {
18952 lpfc_sli_release_iocbq(phba, ctiocb);
18956 ctiocb->vport = phba->pport;
18957 ctiocb->cmd_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
18958 ctiocb->sli4_lxritag = NO_XRI;
18959 ctiocb->sli4_xritag = NO_XRI;
18960 ctiocb->abort_rctl = FC_RCTL_BA_ACC;
18962 if (fctl & FC_FC_EX_CTX)
18963 /* Exchange responder sent the abort so we
18969 lxri = lpfc_sli4_xri_inrange(phba, xri);
18970 if (lxri != NO_XRI)
18971 lpfc_set_rrq_active(phba, ndlp, lxri,
18972 (xri == oxid) ? rxid : oxid, 0);
18973 /* For BA_ABTS from exchange responder, if the logical xri with
18974 * the oxid maps to the FCP XRI range, the port no longer has
18975 * that exchange context, send a BLS_RJT. Override the IOCB for
18978 if ((fctl & FC_FC_EX_CTX) &&
18979 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
18980 ctiocb->abort_rctl = FC_RCTL_BA_RJT;
18981 bf_set(xmit_bls_rsp64_rjt_vspec, &icmd->xmit_bls_rsp, 0);
18982 bf_set(xmit_bls_rsp64_rjt_expc, &icmd->xmit_bls_rsp,
18983 FC_BA_RJT_INV_XID);
18984 bf_set(xmit_bls_rsp64_rjt_rsnc, &icmd->xmit_bls_rsp,
18988 /* If BA_ABTS failed to abort a partially assembled receive sequence,
18989 * the driver no longer has that exchange, send a BLS_RJT. Override
18990 * the IOCB for a BA_RJT.
18992 if (aborted == false) {
18993 ctiocb->abort_rctl = FC_RCTL_BA_RJT;
18994 bf_set(xmit_bls_rsp64_rjt_vspec, &icmd->xmit_bls_rsp, 0);
18995 bf_set(xmit_bls_rsp64_rjt_expc, &icmd->xmit_bls_rsp,
18996 FC_BA_RJT_INV_XID);
18997 bf_set(xmit_bls_rsp64_rjt_rsnc, &icmd->xmit_bls_rsp,
19001 if (fctl & FC_FC_EX_CTX) {
19002 /* ABTS sent by responder to CT exchange, construction
19003 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
19004 * field and RX_ID from ABTS for RX_ID field.
19006 ctiocb->abort_bls = LPFC_ABTS_UNSOL_RSP;
19007 bf_set(xmit_bls_rsp64_rxid, &icmd->xmit_bls_rsp, rxid);
19009 /* ABTS sent by initiator to CT exchange, construction
19010 * of BA_ACC will need to allocate a new XRI as for the
19013 ctiocb->abort_bls = LPFC_ABTS_UNSOL_INT;
19016 /* OX_ID is invariable to who sent ABTS to CT exchange */
19017 bf_set(xmit_bls_rsp64_oxid, &icmd->xmit_bls_rsp, oxid);
19018 bf_set(xmit_bls_rsp64_oxid, &icmd->xmit_bls_rsp, rxid);
19021 bf_set(wqe_els_did, &icmd->xmit_bls_rsp.wqe_dest,
19023 bf_set(xmit_bls_rsp64_temprpi, &icmd->xmit_bls_rsp,
19024 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
19025 bf_set(wqe_cmnd, &icmd->generic.wqe_com, CMD_XMIT_BLS_RSP64_CX);
19027 /* Xmit CT abts response on exchange <xid> */
19028 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
19029 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
19030 ctiocb->abort_rctl, oxid, phba->link_state);
19032 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
19033 if (rc == IOCB_ERROR) {
19034 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
19035 "2925 Failed to issue CT ABTS RSP x%x on "
19036 "xri x%x, Data x%x\n",
19037 ctiocb->abort_rctl, oxid,
19039 lpfc_nlp_put(ndlp);
19040 ctiocb->ndlp = NULL;
19041 lpfc_sli_release_iocbq(phba, ctiocb);
19046 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
19047 * @vport: Pointer to the vport on which this sequence was received
19048 * @dmabuf: pointer to a dmabuf that describes the FC sequence
19050 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
19051 * receive sequence is only partially assembed by the driver, it shall abort
19052 * the partially assembled frames for the sequence. Otherwise, if the
19053 * unsolicited receive sequence has been completely assembled and passed to
19054 * the Upper Layer Protocol (ULP), it then mark the per oxid status for the
19055 * unsolicited sequence has been aborted. After that, it will issue a basic
19056 * accept to accept the abort.
19059 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
19060 struct hbq_dmabuf *dmabuf)
19062 struct lpfc_hba *phba = vport->phba;
19063 struct fc_frame_header fc_hdr;
19067 /* Make a copy of fc_hdr before the dmabuf being released */
19068 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
19069 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
19071 if (fctl & FC_FC_EX_CTX) {
19072 /* ABTS by responder to exchange, no cleanup needed */
19075 /* ABTS by initiator to exchange, need to do cleanup */
19076 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
19077 if (aborted == false)
19078 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
19080 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19082 if (phba->nvmet_support) {
19083 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
19087 /* Respond with BA_ACC or BA_RJT accordingly */
19088 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
19092 * lpfc_seq_complete - Indicates if a sequence is complete
19093 * @dmabuf: pointer to a dmabuf that describes the FC sequence
19095 * This function checks the sequence, starting with the frame described by
19096 * @dmabuf, to see if all the frames associated with this sequence are present.
19097 * the frames associated with this sequence are linked to the @dmabuf using the
19098 * dbuf list. This function looks for two major things. 1) That the first frame
19099 * has a sequence count of zero. 2) There is a frame with last frame of sequence
19100 * set. 3) That there are no holes in the sequence count. The function will
19101 * return 1 when the sequence is complete, otherwise it will return 0.
19104 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
19106 struct fc_frame_header *hdr;
19107 struct lpfc_dmabuf *d_buf;
19108 struct hbq_dmabuf *seq_dmabuf;
19112 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
19113 /* make sure first fame of sequence has a sequence count of zero */
19114 if (hdr->fh_seq_cnt != seq_count)
19116 fctl = (hdr->fh_f_ctl[0] << 16 |
19117 hdr->fh_f_ctl[1] << 8 |
19119 /* If last frame of sequence we can return success. */
19120 if (fctl & FC_FC_END_SEQ)
19122 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
19123 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
19124 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
19125 /* If there is a hole in the sequence count then fail. */
19126 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
19128 fctl = (hdr->fh_f_ctl[0] << 16 |
19129 hdr->fh_f_ctl[1] << 8 |
19131 /* If last frame of sequence we can return success. */
19132 if (fctl & FC_FC_END_SEQ)
19139 * lpfc_prep_seq - Prep sequence for ULP processing
19140 * @vport: Pointer to the vport on which this sequence was received
19141 * @seq_dmabuf: pointer to a dmabuf that describes the FC sequence
19143 * This function takes a sequence, described by a list of frames, and creates
19144 * a list of iocbq structures to describe the sequence. This iocbq list will be
19145 * used to issue to the generic unsolicited sequence handler. This routine
19146 * returns a pointer to the first iocbq in the list. If the function is unable
19147 * to allocate an iocbq then it throw out the received frames that were not
19148 * able to be described and return a pointer to the first iocbq. If unable to
19149 * allocate any iocbqs (including the first) this function will return NULL.
19151 static struct lpfc_iocbq *
19152 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
19154 struct hbq_dmabuf *hbq_buf;
19155 struct lpfc_dmabuf *d_buf, *n_buf;
19156 struct lpfc_iocbq *first_iocbq, *iocbq;
19157 struct fc_frame_header *fc_hdr;
19159 uint32_t len, tot_len;
19161 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
19162 /* remove from receive buffer list */
19163 list_del_init(&seq_dmabuf->hbuf.list);
19164 lpfc_update_rcv_time_stamp(vport);
19165 /* get the Remote Port's SID */
19166 sid = sli4_sid_from_fc_hdr(fc_hdr);
19168 /* Get an iocbq struct to fill in. */
19169 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
19171 /* Initialize the first IOCB. */
19172 first_iocbq->wcqe_cmpl.total_data_placed = 0;
19173 bf_set(lpfc_wcqe_c_status, &first_iocbq->wcqe_cmpl,
19175 first_iocbq->vport = vport;
19177 /* Check FC Header to see what TYPE of frame we are rcv'ing */
19178 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
19179 bf_set(els_rsp64_sid, &first_iocbq->wqe.xmit_els_rsp,
19180 sli4_did_from_fc_hdr(fc_hdr));
19183 bf_set(wqe_ctxt_tag, &first_iocbq->wqe.xmit_els_rsp.wqe_com,
19185 bf_set(wqe_rcvoxid, &first_iocbq->wqe.xmit_els_rsp.wqe_com,
19186 be16_to_cpu(fc_hdr->fh_ox_id));
19188 /* put the first buffer into the first iocb */
19189 tot_len = bf_get(lpfc_rcqe_length,
19190 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
19192 first_iocbq->cmd_dmabuf = &seq_dmabuf->dbuf;
19193 first_iocbq->bpl_dmabuf = NULL;
19194 /* Keep track of the BDE count */
19195 first_iocbq->wcqe_cmpl.word3 = 1;
19197 if (tot_len > LPFC_DATA_BUF_SIZE)
19198 first_iocbq->wqe.gen_req.bde.tus.f.bdeSize =
19199 LPFC_DATA_BUF_SIZE;
19201 first_iocbq->wqe.gen_req.bde.tus.f.bdeSize = tot_len;
19203 first_iocbq->wcqe_cmpl.total_data_placed = tot_len;
19204 bf_set(wqe_els_did, &first_iocbq->wqe.xmit_els_rsp.wqe_dest,
19207 iocbq = first_iocbq;
19209 * Each IOCBq can have two Buffers assigned, so go through the list
19210 * of buffers for this sequence and save two buffers in each IOCBq
19212 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
19214 lpfc_in_buf_free(vport->phba, d_buf);
19217 if (!iocbq->bpl_dmabuf) {
19218 iocbq->bpl_dmabuf = d_buf;
19219 iocbq->wcqe_cmpl.word3++;
19220 /* We need to get the size out of the right CQE */
19221 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
19222 len = bf_get(lpfc_rcqe_length,
19223 &hbq_buf->cq_event.cqe.rcqe_cmpl);
19224 iocbq->unsol_rcv_len = len;
19225 iocbq->wcqe_cmpl.total_data_placed += len;
19228 iocbq = lpfc_sli_get_iocbq(vport->phba);
19231 bf_set(lpfc_wcqe_c_status,
19232 &first_iocbq->wcqe_cmpl,
19234 first_iocbq->wcqe_cmpl.parameter =
19235 IOERR_NO_RESOURCES;
19237 lpfc_in_buf_free(vport->phba, d_buf);
19240 /* We need to get the size out of the right CQE */
19241 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
19242 len = bf_get(lpfc_rcqe_length,
19243 &hbq_buf->cq_event.cqe.rcqe_cmpl);
19244 iocbq->cmd_dmabuf = d_buf;
19245 iocbq->bpl_dmabuf = NULL;
19246 iocbq->wcqe_cmpl.word3 = 1;
19248 if (len > LPFC_DATA_BUF_SIZE)
19249 iocbq->wqe.xmit_els_rsp.bde.tus.f.bdeSize =
19250 LPFC_DATA_BUF_SIZE;
19252 iocbq->wqe.xmit_els_rsp.bde.tus.f.bdeSize =
19256 iocbq->wcqe_cmpl.total_data_placed = tot_len;
19257 bf_set(wqe_els_did, &iocbq->wqe.xmit_els_rsp.wqe_dest,
19259 list_add_tail(&iocbq->list, &first_iocbq->list);
19262 /* Free the sequence's header buffer */
19264 lpfc_in_buf_free(vport->phba, &seq_dmabuf->dbuf);
19266 return first_iocbq;
19270 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
19271 struct hbq_dmabuf *seq_dmabuf)
19273 struct fc_frame_header *fc_hdr;
19274 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
19275 struct lpfc_hba *phba = vport->phba;
19277 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
19278 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
19280 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19281 "2707 Ring %d handler: Failed to allocate "
19282 "iocb Rctl x%x Type x%x received\n",
19284 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
19287 if (!lpfc_complete_unsol_iocb(phba,
19288 phba->sli4_hba.els_wq->pring,
19289 iocbq, fc_hdr->fh_r_ctl,
19290 fc_hdr->fh_type)) {
19291 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19292 "2540 Ring %d handler: unexpected Rctl "
19293 "x%x Type x%x received\n",
19295 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
19296 lpfc_in_buf_free(phba, &seq_dmabuf->dbuf);
19299 /* Free iocb created in lpfc_prep_seq */
19300 list_for_each_entry_safe(curr_iocb, next_iocb,
19301 &iocbq->list, list) {
19302 list_del_init(&curr_iocb->list);
19303 lpfc_sli_release_iocbq(phba, curr_iocb);
19305 lpfc_sli_release_iocbq(phba, iocbq);
19309 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
19310 struct lpfc_iocbq *rspiocb)
19312 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf;
19314 if (pcmd && pcmd->virt)
19315 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
19317 lpfc_sli_release_iocbq(phba, cmdiocb);
19318 lpfc_drain_txq(phba);
19322 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
19323 struct hbq_dmabuf *dmabuf)
19325 struct fc_frame_header *fc_hdr;
19326 struct lpfc_hba *phba = vport->phba;
19327 struct lpfc_iocbq *iocbq = NULL;
19328 union lpfc_wqe128 *pwqe;
19329 struct lpfc_dmabuf *pcmd = NULL;
19330 uint32_t frame_len;
19332 unsigned long iflags;
19334 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
19335 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
19337 /* Send the received frame back */
19338 iocbq = lpfc_sli_get_iocbq(phba);
19340 /* Queue cq event and wakeup worker thread to process it */
19341 spin_lock_irqsave(&phba->hbalock, iflags);
19342 list_add_tail(&dmabuf->cq_event.list,
19343 &phba->sli4_hba.sp_queue_event);
19344 phba->hba_flag |= HBA_SP_QUEUE_EVT;
19345 spin_unlock_irqrestore(&phba->hbalock, iflags);
19346 lpfc_worker_wake_up(phba);
19350 /* Allocate buffer for command payload */
19351 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
19353 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
19355 if (!pcmd || !pcmd->virt)
19358 INIT_LIST_HEAD(&pcmd->list);
19360 /* copyin the payload */
19361 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
19363 iocbq->cmd_dmabuf = pcmd;
19364 iocbq->vport = vport;
19365 iocbq->cmd_flag &= ~LPFC_FIP_ELS_ID_MASK;
19366 iocbq->cmd_flag |= LPFC_USE_FCPWQIDX;
19367 iocbq->num_bdes = 0;
19369 pwqe = &iocbq->wqe;
19370 /* fill in BDE's for command */
19371 pwqe->gen_req.bde.addrHigh = putPaddrHigh(pcmd->phys);
19372 pwqe->gen_req.bde.addrLow = putPaddrLow(pcmd->phys);
19373 pwqe->gen_req.bde.tus.f.bdeSize = frame_len;
19374 pwqe->gen_req.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
19376 pwqe->send_frame.frame_len = frame_len;
19377 pwqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((__be32 *)fc_hdr));
19378 pwqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((__be32 *)fc_hdr + 1));
19379 pwqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((__be32 *)fc_hdr + 2));
19380 pwqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((__be32 *)fc_hdr + 3));
19381 pwqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((__be32 *)fc_hdr + 4));
19382 pwqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((__be32 *)fc_hdr + 5));
19384 pwqe->generic.wqe_com.word7 = 0;
19385 pwqe->generic.wqe_com.word10 = 0;
19387 bf_set(wqe_cmnd, &pwqe->generic.wqe_com, CMD_SEND_FRAME);
19388 bf_set(wqe_sof, &pwqe->generic.wqe_com, 0x2E); /* SOF byte */
19389 bf_set(wqe_eof, &pwqe->generic.wqe_com, 0x41); /* EOF byte */
19390 bf_set(wqe_lenloc, &pwqe->generic.wqe_com, 1);
19391 bf_set(wqe_xbl, &pwqe->generic.wqe_com, 1);
19392 bf_set(wqe_dbde, &pwqe->generic.wqe_com, 1);
19393 bf_set(wqe_xc, &pwqe->generic.wqe_com, 1);
19394 bf_set(wqe_cmd_type, &pwqe->generic.wqe_com, 0xA);
19395 bf_set(wqe_cqid, &pwqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
19396 bf_set(wqe_xri_tag, &pwqe->generic.wqe_com, iocbq->sli4_xritag);
19397 bf_set(wqe_reqtag, &pwqe->generic.wqe_com, iocbq->iotag);
19398 bf_set(wqe_class, &pwqe->generic.wqe_com, CLASS3);
19399 pwqe->generic.wqe_com.abort_tag = iocbq->iotag;
19401 iocbq->cmd_cmpl = lpfc_sli4_mds_loopback_cmpl;
19403 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
19404 if (rc == IOCB_ERROR)
19407 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19411 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
19412 "2023 Unable to process MDS loopback frame\n");
19413 if (pcmd && pcmd->virt)
19414 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
19417 lpfc_sli_release_iocbq(phba, iocbq);
19418 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19422 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
19423 * @phba: Pointer to HBA context object.
19424 * @dmabuf: Pointer to a dmabuf that describes the FC sequence.
19426 * This function is called with no lock held. This function processes all
19427 * the received buffers and gives it to upper layers when a received buffer
19428 * indicates that it is the final frame in the sequence. The interrupt
19429 * service routine processes received buffers at interrupt contexts.
19430 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
19431 * appropriate receive function when the final frame in a sequence is received.
19434 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
19435 struct hbq_dmabuf *dmabuf)
19437 struct hbq_dmabuf *seq_dmabuf;
19438 struct fc_frame_header *fc_hdr;
19439 struct lpfc_vport *vport;
19443 /* Process each received buffer */
19444 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
19446 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
19447 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
19448 vport = phba->pport;
19449 /* Handle MDS Loopback frames */
19450 if (!(phba->pport->load_flag & FC_UNLOADING))
19451 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
19453 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19457 /* check to see if this a valid type of frame */
19458 if (lpfc_fc_frame_check(phba, fc_hdr)) {
19459 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19463 if ((bf_get(lpfc_cqe_code,
19464 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
19465 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
19466 &dmabuf->cq_event.cqe.rcqe_cmpl);
19468 fcfi = bf_get(lpfc_rcqe_fcf_id,
19469 &dmabuf->cq_event.cqe.rcqe_cmpl);
19471 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
19472 vport = phba->pport;
19473 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
19474 "2023 MDS Loopback %d bytes\n",
19475 bf_get(lpfc_rcqe_length,
19476 &dmabuf->cq_event.cqe.rcqe_cmpl));
19477 /* Handle MDS Loopback frames */
19478 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
19482 /* d_id this frame is directed to */
19483 did = sli4_did_from_fc_hdr(fc_hdr);
19485 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
19487 /* throw out the frame */
19488 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19492 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
19493 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
19494 (did != Fabric_DID)) {
19496 * Throw out the frame if we are not pt2pt.
19497 * The pt2pt protocol allows for discovery frames
19498 * to be received without a registered VPI.
19500 if (!(vport->fc_flag & FC_PT2PT) ||
19501 (phba->link_state == LPFC_HBA_READY)) {
19502 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19507 /* Handle the basic abort sequence (BA_ABTS) event */
19508 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
19509 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
19513 /* Link this frame */
19514 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
19516 /* unable to add frame to vport - throw it out */
19517 lpfc_in_buf_free(phba, &dmabuf->dbuf);
19520 /* If not last frame in sequence continue processing frames. */
19521 if (!lpfc_seq_complete(seq_dmabuf))
19524 /* Send the complete sequence to the upper layer protocol */
19525 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
19529 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
19530 * @phba: pointer to lpfc hba data structure.
19532 * This routine is invoked to post rpi header templates to the
19533 * HBA consistent with the SLI-4 interface spec. This routine
19534 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
19535 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
19537 * This routine does not require any locks. It's usage is expected
19538 * to be driver load or reset recovery when the driver is
19543 * -EIO - The mailbox failed to complete successfully.
19544 * When this error occurs, the driver is not guaranteed
19545 * to have any rpi regions posted to the device and
19546 * must either attempt to repost the regions or take a
19550 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
19552 struct lpfc_rpi_hdr *rpi_page;
19556 /* SLI4 ports that support extents do not require RPI headers. */
19557 if (!phba->sli4_hba.rpi_hdrs_in_use)
19559 if (phba->sli4_hba.extents_in_use)
19562 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
19564 * Assign the rpi headers a physical rpi only if the driver
19565 * has not initialized those resources. A port reset only
19566 * needs the headers posted.
19568 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
19570 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
19572 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
19573 if (rc != MBX_SUCCESS) {
19574 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19575 "2008 Error %d posting all rpi "
19583 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
19584 LPFC_RPI_RSRC_RDY);
19589 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
19590 * @phba: pointer to lpfc hba data structure.
19591 * @rpi_page: pointer to the rpi memory region.
19593 * This routine is invoked to post a single rpi header to the
19594 * HBA consistent with the SLI-4 interface spec. This memory region
19595 * maps up to 64 rpi context regions.
19599 * -ENOMEM - No available memory
19600 * -EIO - The mailbox failed to complete successfully.
19603 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
19605 LPFC_MBOXQ_t *mboxq;
19606 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
19608 uint32_t shdr_status, shdr_add_status;
19609 union lpfc_sli4_cfg_shdr *shdr;
19611 /* SLI4 ports that support extents do not require RPI headers. */
19612 if (!phba->sli4_hba.rpi_hdrs_in_use)
19614 if (phba->sli4_hba.extents_in_use)
19617 /* The port is notified of the header region via a mailbox command. */
19618 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19620 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19621 "2001 Unable to allocate memory for issuing "
19622 "SLI_CONFIG_SPECIAL mailbox command\n");
19626 /* Post all rpi memory regions to the port. */
19627 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
19628 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
19629 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
19630 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
19631 sizeof(struct lpfc_sli4_cfg_mhdr),
19632 LPFC_SLI4_MBX_EMBED);
19635 /* Post the physical rpi to the port for this rpi header. */
19636 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
19637 rpi_page->start_rpi);
19638 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
19639 hdr_tmpl, rpi_page->page_count);
19641 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
19642 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
19643 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
19644 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
19645 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
19646 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
19647 mempool_free(mboxq, phba->mbox_mem_pool);
19648 if (shdr_status || shdr_add_status || rc) {
19649 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19650 "2514 POST_RPI_HDR mailbox failed with "
19651 "status x%x add_status x%x, mbx status x%x\n",
19652 shdr_status, shdr_add_status, rc);
19656 * The next_rpi stores the next logical module-64 rpi value used
19657 * to post physical rpis in subsequent rpi postings.
19659 spin_lock_irq(&phba->hbalock);
19660 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
19661 spin_unlock_irq(&phba->hbalock);
19667 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
19668 * @phba: pointer to lpfc hba data structure.
19670 * This routine is invoked to post rpi header templates to the
19671 * HBA consistent with the SLI-4 interface spec. This routine
19672 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
19673 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
19676 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
19677 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
19680 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
19683 uint16_t max_rpi, rpi_limit;
19684 uint16_t rpi_remaining, lrpi = 0;
19685 struct lpfc_rpi_hdr *rpi_hdr;
19686 unsigned long iflag;
19689 * Fetch the next logical rpi. Because this index is logical,
19690 * the driver starts at 0 each time.
19692 spin_lock_irqsave(&phba->hbalock, iflag);
19693 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
19694 rpi_limit = phba->sli4_hba.next_rpi;
19696 rpi = find_first_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit);
19697 if (rpi >= rpi_limit)
19698 rpi = LPFC_RPI_ALLOC_ERROR;
19700 set_bit(rpi, phba->sli4_hba.rpi_bmask);
19701 phba->sli4_hba.max_cfg_param.rpi_used++;
19702 phba->sli4_hba.rpi_count++;
19704 lpfc_printf_log(phba, KERN_INFO,
19705 LOG_NODE | LOG_DISCOVERY,
19706 "0001 Allocated rpi:x%x max:x%x lim:x%x\n",
19707 (int) rpi, max_rpi, rpi_limit);
19710 * Don't try to allocate more rpi header regions if the device limit
19711 * has been exhausted.
19713 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
19714 (phba->sli4_hba.rpi_count >= max_rpi)) {
19715 spin_unlock_irqrestore(&phba->hbalock, iflag);
19720 * RPI header postings are not required for SLI4 ports capable of
19723 if (!phba->sli4_hba.rpi_hdrs_in_use) {
19724 spin_unlock_irqrestore(&phba->hbalock, iflag);
19729 * If the driver is running low on rpi resources, allocate another
19730 * page now. Note that the next_rpi value is used because
19731 * it represents how many are actually in use whereas max_rpi notes
19732 * how many are supported max by the device.
19734 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
19735 spin_unlock_irqrestore(&phba->hbalock, iflag);
19736 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
19737 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
19739 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19740 "2002 Error Could not grow rpi "
19743 lrpi = rpi_hdr->start_rpi;
19744 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
19745 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
19753 * __lpfc_sli4_free_rpi - Release an rpi for reuse.
19754 * @phba: pointer to lpfc hba data structure.
19755 * @rpi: rpi to free
19757 * This routine is invoked to release an rpi to the pool of
19758 * available rpis maintained by the driver.
19761 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
19764 * if the rpi value indicates a prior unreg has already
19765 * been done, skip the unreg.
19767 if (rpi == LPFC_RPI_ALLOC_ERROR)
19770 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
19771 phba->sli4_hba.rpi_count--;
19772 phba->sli4_hba.max_cfg_param.rpi_used--;
19774 lpfc_printf_log(phba, KERN_INFO,
19775 LOG_NODE | LOG_DISCOVERY,
19776 "2016 rpi %x not inuse\n",
19782 * lpfc_sli4_free_rpi - Release an rpi for reuse.
19783 * @phba: pointer to lpfc hba data structure.
19784 * @rpi: rpi to free
19786 * This routine is invoked to release an rpi to the pool of
19787 * available rpis maintained by the driver.
19790 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
19792 spin_lock_irq(&phba->hbalock);
19793 __lpfc_sli4_free_rpi(phba, rpi);
19794 spin_unlock_irq(&phba->hbalock);
19798 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
19799 * @phba: pointer to lpfc hba data structure.
19801 * This routine is invoked to remove the memory region that
19802 * provided rpi via a bitmask.
19805 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
19807 kfree(phba->sli4_hba.rpi_bmask);
19808 kfree(phba->sli4_hba.rpi_ids);
19809 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
19813 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
19814 * @ndlp: pointer to lpfc nodelist data structure.
19815 * @cmpl: completion call-back.
19816 * @arg: data to load as MBox 'caller buffer information'
19818 * This routine is invoked to remove the memory region that
19819 * provided rpi via a bitmask.
19822 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
19823 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
19825 LPFC_MBOXQ_t *mboxq;
19826 struct lpfc_hba *phba = ndlp->phba;
19829 /* The port is notified of the header region via a mailbox command. */
19830 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19834 /* If cmpl assigned, then this nlp_get pairs with
19835 * lpfc_mbx_cmpl_resume_rpi.
19837 * Else cmpl is NULL, then this nlp_get pairs with
19838 * lpfc_sli_def_mbox_cmpl.
19840 if (!lpfc_nlp_get(ndlp)) {
19841 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19842 "2122 %s: Failed to get nlp ref\n",
19844 mempool_free(mboxq, phba->mbox_mem_pool);
19848 /* Post all rpi memory regions to the port. */
19849 lpfc_resume_rpi(mboxq, ndlp);
19851 mboxq->mbox_cmpl = cmpl;
19852 mboxq->ctx_buf = arg;
19854 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19855 mboxq->ctx_ndlp = ndlp;
19856 mboxq->vport = ndlp->vport;
19857 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
19858 if (rc == MBX_NOT_FINISHED) {
19859 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19860 "2010 Resume RPI Mailbox failed "
19861 "status %d, mbxStatus x%x\n", rc,
19862 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
19863 lpfc_nlp_put(ndlp);
19864 mempool_free(mboxq, phba->mbox_mem_pool);
19871 * lpfc_sli4_init_vpi - Initialize a vpi with the port
19872 * @vport: Pointer to the vport for which the vpi is being initialized
19874 * This routine is invoked to activate a vpi with the port.
19878 * -Evalue otherwise
19881 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
19883 LPFC_MBOXQ_t *mboxq;
19885 int retval = MBX_SUCCESS;
19887 struct lpfc_hba *phba = vport->phba;
19888 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19891 lpfc_init_vpi(phba, mboxq, vport->vpi);
19892 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
19893 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
19894 if (rc != MBX_SUCCESS) {
19895 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
19896 "2022 INIT VPI Mailbox failed "
19897 "status %d, mbxStatus x%x\n", rc,
19898 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
19901 if (rc != MBX_TIMEOUT)
19902 mempool_free(mboxq, vport->phba->mbox_mem_pool);
19908 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
19909 * @phba: pointer to lpfc hba data structure.
19910 * @mboxq: Pointer to mailbox object.
19912 * This routine is invoked to manually add a single FCF record. The caller
19913 * must pass a completely initialized FCF_Record. This routine takes
19914 * care of the nonembedded mailbox operations.
19917 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
19920 union lpfc_sli4_cfg_shdr *shdr;
19921 uint32_t shdr_status, shdr_add_status;
19923 virt_addr = mboxq->sge_array->addr[0];
19924 /* The IOCTL status is embedded in the mailbox subheader. */
19925 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
19926 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
19927 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
19929 if ((shdr_status || shdr_add_status) &&
19930 (shdr_status != STATUS_FCF_IN_USE))
19931 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19932 "2558 ADD_FCF_RECORD mailbox failed with "
19933 "status x%x add_status x%x\n",
19934 shdr_status, shdr_add_status);
19936 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19940 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
19941 * @phba: pointer to lpfc hba data structure.
19942 * @fcf_record: pointer to the initialized fcf record to add.
19944 * This routine is invoked to manually add a single FCF record. The caller
19945 * must pass a completely initialized FCF_Record. This routine takes
19946 * care of the nonembedded mailbox operations.
19949 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
19952 LPFC_MBOXQ_t *mboxq;
19955 struct lpfc_mbx_sge sge;
19956 uint32_t alloc_len, req_len;
19959 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19961 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19962 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
19966 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
19969 /* Allocate DMA memory and set up the non-embedded mailbox command */
19970 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
19971 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
19972 req_len, LPFC_SLI4_MBX_NEMBED);
19973 if (alloc_len < req_len) {
19974 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
19975 "2523 Allocated DMA memory size (x%x) is "
19976 "less than the requested DMA memory "
19977 "size (x%x)\n", alloc_len, req_len);
19978 lpfc_sli4_mbox_cmd_free(phba, mboxq);
19983 * Get the first SGE entry from the non-embedded DMA memory. This
19984 * routine only uses a single SGE.
19986 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
19987 virt_addr = mboxq->sge_array->addr[0];
19989 * Configure the FCF record for FCFI 0. This is the driver's
19990 * hardcoded default and gets used in nonFIP mode.
19992 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
19993 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
19994 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
19997 * Copy the fcf_index and the FCF Record Data. The data starts after
19998 * the FCoE header plus word10. The data copy needs to be endian
20001 bytep += sizeof(uint32_t);
20002 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
20003 mboxq->vport = phba->pport;
20004 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
20005 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
20006 if (rc == MBX_NOT_FINISHED) {
20007 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20008 "2515 ADD_FCF_RECORD mailbox failed with "
20009 "status 0x%x\n", rc);
20010 lpfc_sli4_mbox_cmd_free(phba, mboxq);
20019 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
20020 * @phba: pointer to lpfc hba data structure.
20021 * @fcf_record: pointer to the fcf record to write the default data.
20022 * @fcf_index: FCF table entry index.
20024 * This routine is invoked to build the driver's default FCF record. The
20025 * values used are hardcoded. This routine handles memory initialization.
20029 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
20030 struct fcf_record *fcf_record,
20031 uint16_t fcf_index)
20033 memset(fcf_record, 0, sizeof(struct fcf_record));
20034 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
20035 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
20036 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
20037 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
20038 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
20039 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
20040 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
20041 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
20042 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
20043 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
20044 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
20045 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
20046 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
20047 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
20048 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
20049 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
20050 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
20051 /* Set the VLAN bit map */
20052 if (phba->valid_vlan) {
20053 fcf_record->vlan_bitmap[phba->vlan_id / 8]
20054 = 1 << (phba->vlan_id % 8);
20059 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
20060 * @phba: pointer to lpfc hba data structure.
20061 * @fcf_index: FCF table entry offset.
20063 * This routine is invoked to scan the entire FCF table by reading FCF
20064 * record and processing it one at a time starting from the @fcf_index
20065 * for initial FCF discovery or fast FCF failover rediscovery.
20067 * Return 0 if the mailbox command is submitted successfully, none 0
20071 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
20074 LPFC_MBOXQ_t *mboxq;
20076 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
20077 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
20078 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20080 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20081 "2000 Failed to allocate mbox for "
20084 goto fail_fcf_scan;
20086 /* Construct the read FCF record mailbox command */
20087 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
20090 goto fail_fcf_scan;
20092 /* Issue the mailbox command asynchronously */
20093 mboxq->vport = phba->pport;
20094 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
20096 spin_lock_irq(&phba->hbalock);
20097 phba->hba_flag |= FCF_TS_INPROG;
20098 spin_unlock_irq(&phba->hbalock);
20100 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
20101 if (rc == MBX_NOT_FINISHED)
20104 /* Reset eligible FCF count for new scan */
20105 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
20106 phba->fcf.eligible_fcf_cnt = 0;
20112 lpfc_sli4_mbox_cmd_free(phba, mboxq);
20113 /* FCF scan failed, clear FCF_TS_INPROG flag */
20114 spin_lock_irq(&phba->hbalock);
20115 phba->hba_flag &= ~FCF_TS_INPROG;
20116 spin_unlock_irq(&phba->hbalock);
20122 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
20123 * @phba: pointer to lpfc hba data structure.
20124 * @fcf_index: FCF table entry offset.
20126 * This routine is invoked to read an FCF record indicated by @fcf_index
20127 * and to use it for FLOGI roundrobin FCF failover.
20129 * Return 0 if the mailbox command is submitted successfully, none 0
20133 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
20136 LPFC_MBOXQ_t *mboxq;
20138 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20140 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
20141 "2763 Failed to allocate mbox for "
20144 goto fail_fcf_read;
20146 /* Construct the read FCF record mailbox command */
20147 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
20150 goto fail_fcf_read;
20152 /* Issue the mailbox command asynchronously */
20153 mboxq->vport = phba->pport;
20154 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
20155 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
20156 if (rc == MBX_NOT_FINISHED)
20162 if (error && mboxq)
20163 lpfc_sli4_mbox_cmd_free(phba, mboxq);
20168 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
20169 * @phba: pointer to lpfc hba data structure.
20170 * @fcf_index: FCF table entry offset.
20172 * This routine is invoked to read an FCF record indicated by @fcf_index to
20173 * determine whether it's eligible for FLOGI roundrobin failover list.
20175 * Return 0 if the mailbox command is submitted successfully, none 0
20179 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
20182 LPFC_MBOXQ_t *mboxq;
20184 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20186 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
20187 "2758 Failed to allocate mbox for "
20190 goto fail_fcf_read;
20192 /* Construct the read FCF record mailbox command */
20193 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
20196 goto fail_fcf_read;
20198 /* Issue the mailbox command asynchronously */
20199 mboxq->vport = phba->pport;
20200 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
20201 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
20202 if (rc == MBX_NOT_FINISHED)
20208 if (error && mboxq)
20209 lpfc_sli4_mbox_cmd_free(phba, mboxq);
20214 * lpfc_check_next_fcf_pri_level
20215 * @phba: pointer to the lpfc_hba struct for this port.
20216 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
20217 * routine when the rr_bmask is empty. The FCF indecies are put into the
20218 * rr_bmask based on their priority level. Starting from the highest priority
20219 * to the lowest. The most likely FCF candidate will be in the highest
20220 * priority group. When this routine is called it searches the fcf_pri list for
20221 * next lowest priority group and repopulates the rr_bmask with only those
20224 * 1=success 0=failure
20227 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
20229 uint16_t next_fcf_pri;
20230 uint16_t last_index;
20231 struct lpfc_fcf_pri *fcf_pri;
20235 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
20236 LPFC_SLI4_FCF_TBL_INDX_MAX);
20237 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20238 "3060 Last IDX %d\n", last_index);
20240 /* Verify the priority list has 2 or more entries */
20241 spin_lock_irq(&phba->hbalock);
20242 if (list_empty(&phba->fcf.fcf_pri_list) ||
20243 list_is_singular(&phba->fcf.fcf_pri_list)) {
20244 spin_unlock_irq(&phba->hbalock);
20245 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
20246 "3061 Last IDX %d\n", last_index);
20247 return 0; /* Empty rr list */
20249 spin_unlock_irq(&phba->hbalock);
20253 * Clear the rr_bmask and set all of the bits that are at this
20256 memset(phba->fcf.fcf_rr_bmask, 0,
20257 sizeof(*phba->fcf.fcf_rr_bmask));
20258 spin_lock_irq(&phba->hbalock);
20259 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
20260 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
20263 * the 1st priority that has not FLOGI failed
20264 * will be the highest.
20267 next_fcf_pri = fcf_pri->fcf_rec.priority;
20268 spin_unlock_irq(&phba->hbalock);
20269 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
20270 rc = lpfc_sli4_fcf_rr_index_set(phba,
20271 fcf_pri->fcf_rec.fcf_index);
20275 spin_lock_irq(&phba->hbalock);
20278 * if next_fcf_pri was not set above and the list is not empty then
20279 * we have failed flogis on all of them. So reset flogi failed
20280 * and start at the beginning.
20282 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
20283 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
20284 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
20286 * the 1st priority that has not FLOGI failed
20287 * will be the highest.
20290 next_fcf_pri = fcf_pri->fcf_rec.priority;
20291 spin_unlock_irq(&phba->hbalock);
20292 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
20293 rc = lpfc_sli4_fcf_rr_index_set(phba,
20294 fcf_pri->fcf_rec.fcf_index);
20298 spin_lock_irq(&phba->hbalock);
20302 spin_unlock_irq(&phba->hbalock);
20307 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
20308 * @phba: pointer to lpfc hba data structure.
20310 * This routine is to get the next eligible FCF record index in a round
20311 * robin fashion. If the next eligible FCF record index equals to the
20312 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
20313 * shall be returned, otherwise, the next eligible FCF record's index
20314 * shall be returned.
20317 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
20319 uint16_t next_fcf_index;
20322 /* Search start from next bit of currently registered FCF index */
20323 next_fcf_index = phba->fcf.current_rec.fcf_indx;
20326 /* Determine the next fcf index to check */
20327 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
20328 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
20329 LPFC_SLI4_FCF_TBL_INDX_MAX,
20332 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
20333 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
20335 * If we have wrapped then we need to clear the bits that
20336 * have been tested so that we can detect when we should
20337 * change the priority level.
20339 next_fcf_index = find_first_bit(phba->fcf.fcf_rr_bmask,
20340 LPFC_SLI4_FCF_TBL_INDX_MAX);
20344 /* Check roundrobin failover list empty condition */
20345 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
20346 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
20348 * If next fcf index is not found check if there are lower
20349 * Priority level fcf's in the fcf_priority list.
20350 * Set up the rr_bmask with all of the avaiable fcf bits
20351 * at that level and continue the selection process.
20353 if (lpfc_check_next_fcf_pri_level(phba))
20354 goto initial_priority;
20355 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
20356 "2844 No roundrobin failover FCF available\n");
20358 return LPFC_FCOE_FCF_NEXT_NONE;
20361 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
20362 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
20363 LPFC_FCF_FLOGI_FAILED) {
20364 if (list_is_singular(&phba->fcf.fcf_pri_list))
20365 return LPFC_FCOE_FCF_NEXT_NONE;
20367 goto next_priority;
20370 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20371 "2845 Get next roundrobin failover FCF (x%x)\n",
20374 return next_fcf_index;
20378 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
20379 * @phba: pointer to lpfc hba data structure.
20380 * @fcf_index: index into the FCF table to 'set'
20382 * This routine sets the FCF record index in to the eligible bmask for
20383 * roundrobin failover search. It checks to make sure that the index
20384 * does not go beyond the range of the driver allocated bmask dimension
20385 * before setting the bit.
20387 * Returns 0 if the index bit successfully set, otherwise, it returns
20391 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
20393 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
20394 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
20395 "2610 FCF (x%x) reached driver's book "
20396 "keeping dimension:x%x\n",
20397 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
20400 /* Set the eligible FCF record index bmask */
20401 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
20403 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20404 "2790 Set FCF (x%x) to roundrobin FCF failover "
20405 "bmask\n", fcf_index);
20411 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
20412 * @phba: pointer to lpfc hba data structure.
20413 * @fcf_index: index into the FCF table to 'clear'
20415 * This routine clears the FCF record index from the eligible bmask for
20416 * roundrobin failover search. It checks to make sure that the index
20417 * does not go beyond the range of the driver allocated bmask dimension
20418 * before clearing the bit.
20421 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
20423 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
20424 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
20425 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
20426 "2762 FCF (x%x) reached driver's book "
20427 "keeping dimension:x%x\n",
20428 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
20431 /* Clear the eligible FCF record index bmask */
20432 spin_lock_irq(&phba->hbalock);
20433 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
20435 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
20436 list_del_init(&fcf_pri->list);
20440 spin_unlock_irq(&phba->hbalock);
20441 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
20443 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20444 "2791 Clear FCF (x%x) from roundrobin failover "
20445 "bmask\n", fcf_index);
20449 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
20450 * @phba: pointer to lpfc hba data structure.
20451 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
20453 * This routine is the completion routine for the rediscover FCF table mailbox
20454 * command. If the mailbox command returned failure, it will try to stop the
20455 * FCF rediscover wait timer.
20458 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
20460 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
20461 uint32_t shdr_status, shdr_add_status;
20463 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
20465 shdr_status = bf_get(lpfc_mbox_hdr_status,
20466 &redisc_fcf->header.cfg_shdr.response);
20467 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
20468 &redisc_fcf->header.cfg_shdr.response);
20469 if (shdr_status || shdr_add_status) {
20470 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
20471 "2746 Requesting for FCF rediscovery failed "
20472 "status x%x add_status x%x\n",
20473 shdr_status, shdr_add_status);
20474 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
20475 spin_lock_irq(&phba->hbalock);
20476 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
20477 spin_unlock_irq(&phba->hbalock);
20479 * CVL event triggered FCF rediscover request failed,
20480 * last resort to re-try current registered FCF entry.
20482 lpfc_retry_pport_discovery(phba);
20484 spin_lock_irq(&phba->hbalock);
20485 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
20486 spin_unlock_irq(&phba->hbalock);
20488 * DEAD FCF event triggered FCF rediscover request
20489 * failed, last resort to fail over as a link down
20490 * to FCF registration.
20492 lpfc_sli4_fcf_dead_failthrough(phba);
20495 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
20496 "2775 Start FCF rediscover quiescent timer\n");
20498 * Start FCF rediscovery wait timer for pending FCF
20499 * before rescan FCF record table.
20501 lpfc_fcf_redisc_wait_start_timer(phba);
20504 mempool_free(mbox, phba->mbox_mem_pool);
20508 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
20509 * @phba: pointer to lpfc hba data structure.
20511 * This routine is invoked to request for rediscovery of the entire FCF table
20515 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
20517 LPFC_MBOXQ_t *mbox;
20518 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
20521 /* Cancel retry delay timers to all vports before FCF rediscover */
20522 lpfc_cancel_all_vport_retry_delay_timer(phba);
20524 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20526 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20527 "2745 Failed to allocate mbox for "
20528 "requesting FCF rediscover.\n");
20532 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
20533 sizeof(struct lpfc_sli4_cfg_mhdr));
20534 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
20535 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
20536 length, LPFC_SLI4_MBX_EMBED);
20538 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
20539 /* Set count to 0 for invalidating the entire FCF database */
20540 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
20542 /* Issue the mailbox command asynchronously */
20543 mbox->vport = phba->pport;
20544 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
20545 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
20547 if (rc == MBX_NOT_FINISHED) {
20548 mempool_free(mbox, phba->mbox_mem_pool);
20555 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
20556 * @phba: pointer to lpfc hba data structure.
20558 * This function is the failover routine as a last resort to the FCF DEAD
20559 * event when driver failed to perform fast FCF failover.
20562 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
20564 uint32_t link_state;
20567 * Last resort as FCF DEAD event failover will treat this as
20568 * a link down, but save the link state because we don't want
20569 * it to be changed to Link Down unless it is already down.
20571 link_state = phba->link_state;
20572 lpfc_linkdown(phba);
20573 phba->link_state = link_state;
20575 /* Unregister FCF if no devices connected to it */
20576 lpfc_unregister_unused_fcf(phba);
20580 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
20581 * @phba: pointer to lpfc hba data structure.
20582 * @rgn23_data: pointer to configure region 23 data.
20584 * This function gets SLI3 port configure region 23 data through memory dump
20585 * mailbox command. When it successfully retrieves data, the size of the data
20586 * will be returned, otherwise, 0 will be returned.
20589 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
20591 LPFC_MBOXQ_t *pmb = NULL;
20593 uint32_t offset = 0;
20599 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20601 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20602 "2600 failed to allocate mailbox memory\n");
20608 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
20609 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
20611 if (rc != MBX_SUCCESS) {
20612 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
20613 "2601 failed to read config "
20614 "region 23, rc 0x%x Status 0x%x\n",
20615 rc, mb->mbxStatus);
20616 mb->un.varDmp.word_cnt = 0;
20619 * dump mem may return a zero when finished or we got a
20620 * mailbox error, either way we are done.
20622 if (mb->un.varDmp.word_cnt == 0)
20625 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
20626 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
20628 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
20629 rgn23_data + offset,
20630 mb->un.varDmp.word_cnt);
20631 offset += mb->un.varDmp.word_cnt;
20632 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
20634 mempool_free(pmb, phba->mbox_mem_pool);
20639 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
20640 * @phba: pointer to lpfc hba data structure.
20641 * @rgn23_data: pointer to configure region 23 data.
20643 * This function gets SLI4 port configure region 23 data through memory dump
20644 * mailbox command. When it successfully retrieves data, the size of the data
20645 * will be returned, otherwise, 0 will be returned.
20648 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
20650 LPFC_MBOXQ_t *mboxq = NULL;
20651 struct lpfc_dmabuf *mp = NULL;
20652 struct lpfc_mqe *mqe;
20653 uint32_t data_length = 0;
20659 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20661 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20662 "3105 failed to allocate mailbox memory\n");
20666 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
20668 mqe = &mboxq->u.mqe;
20669 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
20670 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
20673 data_length = mqe->un.mb_words[5];
20674 if (data_length == 0)
20676 if (data_length > DMP_RGN23_SIZE) {
20680 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
20682 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED);
20683 return data_length;
20687 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
20688 * @phba: pointer to lpfc hba data structure.
20690 * This function read region 23 and parse TLV for port status to
20691 * decide if the user disaled the port. If the TLV indicates the
20692 * port is disabled, the hba_flag is set accordingly.
20695 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
20697 uint8_t *rgn23_data = NULL;
20698 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
20699 uint32_t offset = 0;
20701 /* Get adapter Region 23 data */
20702 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
20706 if (phba->sli_rev < LPFC_SLI_REV4)
20707 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
20709 if_type = bf_get(lpfc_sli_intf_if_type,
20710 &phba->sli4_hba.sli_intf);
20711 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
20713 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
20719 /* Check the region signature first */
20720 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
20721 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20722 "2619 Config region 23 has bad signature\n");
20727 /* Check the data structure version */
20728 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
20729 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20730 "2620 Config region 23 has bad version\n");
20735 /* Parse TLV entries in the region */
20736 while (offset < data_size) {
20737 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
20740 * If the TLV is not driver specific TLV or driver id is
20741 * not linux driver id, skip the record.
20743 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
20744 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
20745 (rgn23_data[offset + 3] != 0)) {
20746 offset += rgn23_data[offset + 1] * 4 + 4;
20750 /* Driver found a driver specific TLV in the config region */
20751 sub_tlv_len = rgn23_data[offset + 1] * 4;
20756 * Search for configured port state sub-TLV.
20758 while ((offset < data_size) &&
20759 (tlv_offset < sub_tlv_len)) {
20760 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
20765 if (rgn23_data[offset] != PORT_STE_TYPE) {
20766 offset += rgn23_data[offset + 1] * 4 + 4;
20767 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
20771 /* This HBA contains PORT_STE configured */
20772 if (!rgn23_data[offset + 2])
20773 phba->hba_flag |= LINK_DISABLED;
20785 * lpfc_log_fw_write_cmpl - logs firmware write completion status
20786 * @phba: pointer to lpfc hba data structure
20787 * @shdr_status: wr_object rsp's status field
20788 * @shdr_add_status: wr_object rsp's add_status field
20789 * @shdr_add_status_2: wr_object rsp's add_status_2 field
20790 * @shdr_change_status: wr_object rsp's change_status field
20791 * @shdr_csf: wr_object rsp's csf bit
20793 * This routine is intended to be called after a firmware write completes.
20794 * It will log next action items to be performed by the user to instantiate
20795 * the newly downloaded firmware or reason for incompatibility.
20798 lpfc_log_fw_write_cmpl(struct lpfc_hba *phba, u32 shdr_status,
20799 u32 shdr_add_status, u32 shdr_add_status_2,
20800 u32 shdr_change_status, u32 shdr_csf)
20802 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
20803 "4198 %s: flash_id x%02x, asic_rev x%02x, "
20804 "status x%02x, add_status x%02x, add_status_2 x%02x, "
20805 "change_status x%02x, csf %01x\n", __func__,
20806 phba->sli4_hba.flash_id, phba->sli4_hba.asic_rev,
20807 shdr_status, shdr_add_status, shdr_add_status_2,
20808 shdr_change_status, shdr_csf);
20810 if (shdr_add_status == LPFC_ADD_STATUS_INCOMPAT_OBJ) {
20811 switch (shdr_add_status_2) {
20812 case LPFC_ADD_STATUS_2_INCOMPAT_FLASH:
20813 lpfc_log_msg(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
20814 "4199 Firmware write failed: "
20815 "image incompatible with flash x%02x\n",
20816 phba->sli4_hba.flash_id);
20818 case LPFC_ADD_STATUS_2_INCORRECT_ASIC:
20819 lpfc_log_msg(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
20820 "4200 Firmware write failed: "
20821 "image incompatible with ASIC "
20822 "architecture x%02x\n",
20823 phba->sli4_hba.asic_rev);
20826 lpfc_log_msg(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
20827 "4210 Firmware write failed: "
20828 "add_status_2 x%02x\n",
20829 shdr_add_status_2);
20832 } else if (!shdr_status && !shdr_add_status) {
20833 if (shdr_change_status == LPFC_CHANGE_STATUS_FW_RESET ||
20834 shdr_change_status == LPFC_CHANGE_STATUS_PORT_MIGRATION) {
20836 shdr_change_status =
20837 LPFC_CHANGE_STATUS_PCI_RESET;
20840 switch (shdr_change_status) {
20841 case (LPFC_CHANGE_STATUS_PHYS_DEV_RESET):
20842 lpfc_log_msg(phba, KERN_NOTICE, LOG_MBOX | LOG_SLI,
20843 "3198 Firmware write complete: System "
20844 "reboot required to instantiate\n");
20846 case (LPFC_CHANGE_STATUS_FW_RESET):
20847 lpfc_log_msg(phba, KERN_NOTICE, LOG_MBOX | LOG_SLI,
20848 "3199 Firmware write complete: "
20849 "Firmware reset required to "
20852 case (LPFC_CHANGE_STATUS_PORT_MIGRATION):
20853 lpfc_log_msg(phba, KERN_NOTICE, LOG_MBOX | LOG_SLI,
20854 "3200 Firmware write complete: Port "
20855 "Migration or PCI Reset required to "
20858 case (LPFC_CHANGE_STATUS_PCI_RESET):
20859 lpfc_log_msg(phba, KERN_NOTICE, LOG_MBOX | LOG_SLI,
20860 "3201 Firmware write complete: PCI "
20861 "Reset required to instantiate\n");
20870 * lpfc_wr_object - write an object to the firmware
20871 * @phba: HBA structure that indicates port to create a queue on.
20872 * @dmabuf_list: list of dmabufs to write to the port.
20873 * @size: the total byte value of the objects to write to the port.
20874 * @offset: the current offset to be used to start the transfer.
20876 * This routine will create a wr_object mailbox command to send to the port.
20877 * the mailbox command will be constructed using the dma buffers described in
20878 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
20879 * BDEs that the imbedded mailbox can support. The @offset variable will be
20880 * used to indicate the starting offset of the transfer and will also return
20881 * the offset after the write object mailbox has completed. @size is used to
20882 * determine the end of the object and whether the eof bit should be set.
20884 * Return 0 is successful and offset will contain the new offset to use
20885 * for the next write.
20886 * Return negative value for error cases.
20889 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
20890 uint32_t size, uint32_t *offset)
20892 struct lpfc_mbx_wr_object *wr_object;
20893 LPFC_MBOXQ_t *mbox;
20895 int mbox_status = 0;
20896 uint32_t shdr_status, shdr_add_status, shdr_add_status_2;
20897 uint32_t shdr_change_status = 0, shdr_csf = 0;
20899 struct lpfc_dmabuf *dmabuf;
20900 uint32_t written = 0;
20901 bool check_change_status = false;
20903 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
20907 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
20908 LPFC_MBOX_OPCODE_WRITE_OBJECT,
20909 sizeof(struct lpfc_mbx_wr_object) -
20910 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
20912 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
20913 wr_object->u.request.write_offset = *offset;
20914 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
20915 wr_object->u.request.object_name[0] =
20916 cpu_to_le32(wr_object->u.request.object_name[0]);
20917 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
20918 list_for_each_entry(dmabuf, dmabuf_list, list) {
20919 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
20921 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
20922 wr_object->u.request.bde[i].addrHigh =
20923 putPaddrHigh(dmabuf->phys);
20924 if (written + SLI4_PAGE_SIZE >= size) {
20925 wr_object->u.request.bde[i].tus.f.bdeSize =
20927 written += (size - written);
20928 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
20929 bf_set(lpfc_wr_object_eas, &wr_object->u.request, 1);
20930 check_change_status = true;
20932 wr_object->u.request.bde[i].tus.f.bdeSize =
20934 written += SLI4_PAGE_SIZE;
20938 wr_object->u.request.bde_count = i;
20939 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
20940 if (!phba->sli4_hba.intr_enable)
20941 mbox_status = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
20943 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
20944 mbox_status = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
20947 /* The mbox status needs to be maintained to detect MBOX_TIMEOUT. */
20950 /* The IOCTL status is embedded in the mailbox subheader. */
20951 shdr_status = bf_get(lpfc_mbox_hdr_status,
20952 &wr_object->header.cfg_shdr.response);
20953 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
20954 &wr_object->header.cfg_shdr.response);
20955 shdr_add_status_2 = bf_get(lpfc_mbox_hdr_add_status_2,
20956 &wr_object->header.cfg_shdr.response);
20957 if (check_change_status) {
20958 shdr_change_status = bf_get(lpfc_wr_object_change_status,
20959 &wr_object->u.response);
20960 shdr_csf = bf_get(lpfc_wr_object_csf,
20961 &wr_object->u.response);
20964 if (shdr_status || shdr_add_status || shdr_add_status_2 || rc) {
20965 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
20966 "3025 Write Object mailbox failed with "
20967 "status x%x add_status x%x, add_status_2 x%x, "
20968 "mbx status x%x\n",
20969 shdr_status, shdr_add_status, shdr_add_status_2,
20972 *offset = shdr_add_status;
20974 *offset += wr_object->u.response.actual_write_length;
20977 if (rc || check_change_status)
20978 lpfc_log_fw_write_cmpl(phba, shdr_status, shdr_add_status,
20979 shdr_add_status_2, shdr_change_status,
20982 if (!phba->sli4_hba.intr_enable)
20983 mempool_free(mbox, phba->mbox_mem_pool);
20984 else if (mbox_status != MBX_TIMEOUT)
20985 mempool_free(mbox, phba->mbox_mem_pool);
20991 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
20992 * @vport: pointer to vport data structure.
20994 * This function iterate through the mailboxq and clean up all REG_LOGIN
20995 * and REG_VPI mailbox commands associated with the vport. This function
20996 * is called when driver want to restart discovery of the vport due to
20997 * a Clear Virtual Link event.
21000 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
21002 struct lpfc_hba *phba = vport->phba;
21003 LPFC_MBOXQ_t *mb, *nextmb;
21004 struct lpfc_nodelist *ndlp;
21005 struct lpfc_nodelist *act_mbx_ndlp = NULL;
21006 LIST_HEAD(mbox_cmd_list);
21007 uint8_t restart_loop;
21009 /* Clean up internally queued mailbox commands with the vport */
21010 spin_lock_irq(&phba->hbalock);
21011 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
21012 if (mb->vport != vport)
21015 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
21016 (mb->u.mb.mbxCommand != MBX_REG_VPI))
21019 list_move_tail(&mb->list, &mbox_cmd_list);
21021 /* Clean up active mailbox command with the vport */
21022 mb = phba->sli.mbox_active;
21023 if (mb && (mb->vport == vport)) {
21024 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
21025 (mb->u.mb.mbxCommand == MBX_REG_VPI))
21026 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
21027 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
21028 act_mbx_ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
21030 /* This reference is local to this routine. The
21031 * reference is removed at routine exit.
21033 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
21035 /* Unregister the RPI when mailbox complete */
21036 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
21039 /* Cleanup any mailbox completions which are not yet processed */
21042 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
21044 * If this mailox is already processed or it is
21045 * for another vport ignore it.
21047 if ((mb->vport != vport) ||
21048 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
21051 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
21052 (mb->u.mb.mbxCommand != MBX_REG_VPI))
21055 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
21056 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
21057 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
21058 /* Unregister the RPI when mailbox complete */
21059 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
21061 spin_unlock_irq(&phba->hbalock);
21062 spin_lock(&ndlp->lock);
21063 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
21064 spin_unlock(&ndlp->lock);
21065 spin_lock_irq(&phba->hbalock);
21069 } while (restart_loop);
21071 spin_unlock_irq(&phba->hbalock);
21073 /* Release the cleaned-up mailbox commands */
21074 while (!list_empty(&mbox_cmd_list)) {
21075 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
21076 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
21077 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
21078 mb->ctx_ndlp = NULL;
21080 spin_lock(&ndlp->lock);
21081 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
21082 spin_unlock(&ndlp->lock);
21083 lpfc_nlp_put(ndlp);
21086 lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_UNLOCKED);
21089 /* Release the ndlp with the cleaned-up active mailbox command */
21090 if (act_mbx_ndlp) {
21091 spin_lock(&act_mbx_ndlp->lock);
21092 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
21093 spin_unlock(&act_mbx_ndlp->lock);
21094 lpfc_nlp_put(act_mbx_ndlp);
21099 * lpfc_drain_txq - Drain the txq
21100 * @phba: Pointer to HBA context object.
21102 * This function attempt to submit IOCBs on the txq
21103 * to the adapter. For SLI4 adapters, the txq contains
21104 * ELS IOCBs that have been deferred because the there
21105 * are no SGLs. This congestion can occur with large
21106 * vport counts during node discovery.
21110 lpfc_drain_txq(struct lpfc_hba *phba)
21112 LIST_HEAD(completions);
21113 struct lpfc_sli_ring *pring;
21114 struct lpfc_iocbq *piocbq = NULL;
21115 unsigned long iflags = 0;
21116 char *fail_msg = NULL;
21117 uint32_t txq_cnt = 0;
21118 struct lpfc_queue *wq;
21121 if (phba->link_flag & LS_MDS_LOOPBACK) {
21122 /* MDS WQE are posted only to first WQ*/
21123 wq = phba->sli4_hba.hdwq[0].io_wq;
21128 wq = phba->sli4_hba.els_wq;
21131 pring = lpfc_phba_elsring(phba);
21134 if (unlikely(!pring) || list_empty(&pring->txq))
21137 spin_lock_irqsave(&pring->ring_lock, iflags);
21138 list_for_each_entry(piocbq, &pring->txq, list) {
21142 if (txq_cnt > pring->txq_max)
21143 pring->txq_max = txq_cnt;
21145 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21147 while (!list_empty(&pring->txq)) {
21148 spin_lock_irqsave(&pring->ring_lock, iflags);
21150 piocbq = lpfc_sli_ringtx_get(phba, pring);
21152 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21153 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
21154 "2823 txq empty and txq_cnt is %d\n ",
21160 ret = __lpfc_sli_issue_iocb(phba, pring->ringno, piocbq, 0);
21162 if (ret && ret != IOCB_BUSY) {
21163 fail_msg = " - Cannot send IO ";
21164 piocbq->cmd_flag &= ~LPFC_DRIVER_ABORTED;
21167 piocbq->cmd_flag |= LPFC_DRIVER_ABORTED;
21168 /* Failed means we can't issue and need to cancel */
21169 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
21170 "2822 IOCB failed %s iotag 0x%x "
21171 "xri 0x%x %d flg x%x\n",
21172 fail_msg, piocbq->iotag,
21173 piocbq->sli4_xritag, ret,
21175 list_add_tail(&piocbq->list, &completions);
21178 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21179 if (txq_cnt == 0 || ret == IOCB_BUSY)
21182 /* Cancel all the IOCBs that cannot be issued */
21183 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
21184 IOERR_SLI_ABORTED);
21190 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
21191 * @phba: Pointer to HBA context object.
21192 * @pwqeq: Pointer to command WQE.
21193 * @sglq: Pointer to the scatter gather queue object.
21195 * This routine converts the bpl or bde that is in the WQE
21196 * to a sgl list for the sli4 hardware. The physical address
21197 * of the bpl/bde is converted back to a virtual address.
21198 * If the WQE contains a BPL then the list of BDE's is
21199 * converted to sli4_sge's. If the WQE contains a single
21200 * BDE then it is converted to a single sli_sge.
21201 * The WQE is still in cpu endianness so the contents of
21202 * the bpl can be used without byte swapping.
21204 * Returns valid XRI = Success, NO_XRI = Failure.
21207 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
21208 struct lpfc_sglq *sglq)
21210 uint16_t xritag = NO_XRI;
21211 struct ulp_bde64 *bpl = NULL;
21212 struct ulp_bde64 bde;
21213 struct sli4_sge *sgl = NULL;
21214 struct lpfc_dmabuf *dmabuf;
21215 union lpfc_wqe128 *wqe;
21218 uint32_t offset = 0; /* accumulated offset in the sg request list */
21219 int inbound = 0; /* number of sg reply entries inbound from firmware */
21222 if (!pwqeq || !sglq)
21225 sgl = (struct sli4_sge *)sglq->sgl;
21227 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
21229 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
21230 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
21231 return sglq->sli4_xritag;
21232 numBdes = pwqeq->num_bdes;
21234 /* The addrHigh and addrLow fields within the WQE
21235 * have not been byteswapped yet so there is no
21236 * need to swap them back.
21238 if (pwqeq->bpl_dmabuf)
21239 dmabuf = pwqeq->bpl_dmabuf;
21243 bpl = (struct ulp_bde64 *)dmabuf->virt;
21247 for (i = 0; i < numBdes; i++) {
21248 /* Should already be byte swapped. */
21249 sgl->addr_hi = bpl->addrHigh;
21250 sgl->addr_lo = bpl->addrLow;
21252 sgl->word2 = le32_to_cpu(sgl->word2);
21253 if ((i+1) == numBdes)
21254 bf_set(lpfc_sli4_sge_last, sgl, 1);
21256 bf_set(lpfc_sli4_sge_last, sgl, 0);
21257 /* swap the size field back to the cpu so we
21258 * can assign it to the sgl.
21260 bde.tus.w = le32_to_cpu(bpl->tus.w);
21261 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
21262 /* The offsets in the sgl need to be accumulated
21263 * separately for the request and reply lists.
21264 * The request is always first, the reply follows.
21267 case CMD_GEN_REQUEST64_WQE:
21268 /* add up the reply sg entries */
21269 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
21271 /* first inbound? reset the offset */
21274 bf_set(lpfc_sli4_sge_offset, sgl, offset);
21275 bf_set(lpfc_sli4_sge_type, sgl,
21276 LPFC_SGE_TYPE_DATA);
21277 offset += bde.tus.f.bdeSize;
21279 case CMD_FCP_TRSP64_WQE:
21280 bf_set(lpfc_sli4_sge_offset, sgl, 0);
21281 bf_set(lpfc_sli4_sge_type, sgl,
21282 LPFC_SGE_TYPE_DATA);
21284 case CMD_FCP_TSEND64_WQE:
21285 case CMD_FCP_TRECEIVE64_WQE:
21286 bf_set(lpfc_sli4_sge_type, sgl,
21287 bpl->tus.f.bdeFlags);
21291 offset += bde.tus.f.bdeSize;
21292 bf_set(lpfc_sli4_sge_offset, sgl, offset);
21295 sgl->word2 = cpu_to_le32(sgl->word2);
21299 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
21300 /* The addrHigh and addrLow fields of the BDE have not
21301 * been byteswapped yet so they need to be swapped
21302 * before putting them in the sgl.
21304 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
21305 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
21306 sgl->word2 = le32_to_cpu(sgl->word2);
21307 bf_set(lpfc_sli4_sge_last, sgl, 1);
21308 sgl->word2 = cpu_to_le32(sgl->word2);
21309 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
21311 return sglq->sli4_xritag;
21315 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
21316 * @phba: Pointer to HBA context object.
21317 * @qp: Pointer to HDW queue.
21318 * @pwqe: Pointer to command WQE.
21321 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
21322 struct lpfc_iocbq *pwqe)
21324 union lpfc_wqe128 *wqe = &pwqe->wqe;
21325 struct lpfc_async_xchg_ctx *ctxp;
21326 struct lpfc_queue *wq;
21327 struct lpfc_sglq *sglq;
21328 struct lpfc_sli_ring *pring;
21329 unsigned long iflags;
21332 /* NVME_LS and NVME_LS ABTS requests. */
21333 if (pwqe->cmd_flag & LPFC_IO_NVME_LS) {
21334 pring = phba->sli4_hba.nvmels_wq->pring;
21335 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
21337 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
21339 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21342 pwqe->sli4_lxritag = sglq->sli4_lxritag;
21343 pwqe->sli4_xritag = sglq->sli4_xritag;
21344 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
21345 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21348 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
21349 pwqe->sli4_xritag);
21350 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
21352 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21356 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
21357 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21359 lpfc_sli4_poll_eq(qp->hba_eq);
21363 /* NVME_FCREQ and NVME_ABTS requests */
21364 if (pwqe->cmd_flag & (LPFC_IO_NVME | LPFC_IO_FCP | LPFC_IO_CMF)) {
21365 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
21369 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
21371 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
21373 ret = lpfc_sli4_wq_put(wq, wqe);
21375 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21378 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
21379 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21381 lpfc_sli4_poll_eq(qp->hba_eq);
21385 /* NVMET requests */
21386 if (pwqe->cmd_flag & LPFC_IO_NVMET) {
21387 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
21391 ctxp = pwqe->context_un.axchg;
21392 sglq = ctxp->ctxbuf->sglq;
21393 if (pwqe->sli4_xritag == NO_XRI) {
21394 pwqe->sli4_lxritag = sglq->sli4_lxritag;
21395 pwqe->sli4_xritag = sglq->sli4_xritag;
21397 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
21398 pwqe->sli4_xritag);
21399 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
21401 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
21403 ret = lpfc_sli4_wq_put(wq, wqe);
21405 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21408 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
21409 spin_unlock_irqrestore(&pring->ring_lock, iflags);
21411 lpfc_sli4_poll_eq(qp->hba_eq);
21418 * lpfc_sli4_issue_abort_iotag - SLI-4 WQE init & issue for the Abort
21419 * @phba: Pointer to HBA context object.
21420 * @cmdiocb: Pointer to driver command iocb object.
21421 * @cmpl: completion function.
21423 * Fill the appropriate fields for the abort WQE and call
21424 * internal routine lpfc_sli4_issue_wqe to send the WQE
21425 * This function is called with hbalock held and no ring_lock held.
21427 * RETURNS 0 - SUCCESS
21431 lpfc_sli4_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
21434 struct lpfc_vport *vport = cmdiocb->vport;
21435 struct lpfc_iocbq *abtsiocb = NULL;
21436 union lpfc_wqe128 *abtswqe;
21437 struct lpfc_io_buf *lpfc_cmd;
21438 int retval = IOCB_ERROR;
21439 u16 xritag = cmdiocb->sli4_xritag;
21442 * The scsi command can not be in txq and it is in flight because the
21443 * pCmd is still pointing at the SCSI command we have to abort. There
21444 * is no need to search the txcmplq. Just send an abort to the FW.
21447 abtsiocb = __lpfc_sli_get_iocbq(phba);
21449 return WQE_NORESOURCE;
21451 /* Indicate the IO is being aborted by the driver. */
21452 cmdiocb->cmd_flag |= LPFC_DRIVER_ABORTED;
21454 abtswqe = &abtsiocb->wqe;
21455 memset(abtswqe, 0, sizeof(*abtswqe));
21457 if (!lpfc_is_link_up(phba) || (phba->link_flag & LS_EXTERNAL_LOOPBACK))
21458 bf_set(abort_cmd_ia, &abtswqe->abort_cmd, 1);
21459 bf_set(abort_cmd_criteria, &abtswqe->abort_cmd, T_XRI_TAG);
21460 abtswqe->abort_cmd.rsrvd5 = 0;
21461 abtswqe->abort_cmd.wqe_com.abort_tag = xritag;
21462 bf_set(wqe_reqtag, &abtswqe->abort_cmd.wqe_com, abtsiocb->iotag);
21463 bf_set(wqe_cmnd, &abtswqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
21464 bf_set(wqe_xri_tag, &abtswqe->generic.wqe_com, 0);
21465 bf_set(wqe_qosd, &abtswqe->abort_cmd.wqe_com, 1);
21466 bf_set(wqe_lenloc, &abtswqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
21467 bf_set(wqe_cmd_type, &abtswqe->abort_cmd.wqe_com, OTHER_COMMAND);
21469 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
21470 abtsiocb->hba_wqidx = cmdiocb->hba_wqidx;
21471 abtsiocb->cmd_flag |= LPFC_USE_FCPWQIDX;
21472 if (cmdiocb->cmd_flag & LPFC_IO_FCP)
21473 abtsiocb->cmd_flag |= LPFC_IO_FCP;
21474 if (cmdiocb->cmd_flag & LPFC_IO_NVME)
21475 abtsiocb->cmd_flag |= LPFC_IO_NVME;
21476 if (cmdiocb->cmd_flag & LPFC_IO_FOF)
21477 abtsiocb->cmd_flag |= LPFC_IO_FOF;
21478 abtsiocb->vport = vport;
21479 abtsiocb->cmd_cmpl = cmpl;
21481 lpfc_cmd = container_of(cmdiocb, struct lpfc_io_buf, cur_iocbq);
21482 retval = lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, abtsiocb);
21484 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
21485 "0359 Abort xri x%x, original iotag x%x, "
21486 "abort cmd iotag x%x retval x%x\n",
21487 xritag, cmdiocb->iotag, abtsiocb->iotag, retval);
21490 cmdiocb->cmd_flag &= ~LPFC_DRIVER_ABORTED;
21491 __lpfc_sli_release_iocbq(phba, abtsiocb);
21497 #ifdef LPFC_MXP_STAT
21499 * lpfc_snapshot_mxp - Snapshot pbl, pvt and busy count
21500 * @phba: pointer to lpfc hba data structure.
21501 * @hwqid: belong to which HWQ.
21503 * The purpose of this routine is to take a snapshot of pbl, pvt and busy count
21504 * 15 seconds after a test case is running.
21506 * The user should call lpfc_debugfs_multixripools_write before running a test
21507 * case to clear stat_snapshot_taken. Then the user starts a test case. During
21508 * test case is running, stat_snapshot_taken is incremented by 1 every time when
21509 * this routine is called from heartbeat timer. When stat_snapshot_taken is
21510 * equal to LPFC_MXP_SNAPSHOT_TAKEN, a snapshot is taken.
21512 void lpfc_snapshot_mxp(struct lpfc_hba *phba, u32 hwqid)
21514 struct lpfc_sli4_hdw_queue *qp;
21515 struct lpfc_multixri_pool *multixri_pool;
21516 struct lpfc_pvt_pool *pvt_pool;
21517 struct lpfc_pbl_pool *pbl_pool;
21520 qp = &phba->sli4_hba.hdwq[hwqid];
21521 multixri_pool = qp->p_multixri_pool;
21522 if (!multixri_pool)
21525 if (multixri_pool->stat_snapshot_taken == LPFC_MXP_SNAPSHOT_TAKEN) {
21526 pvt_pool = &qp->p_multixri_pool->pvt_pool;
21527 pbl_pool = &qp->p_multixri_pool->pbl_pool;
21528 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
21530 multixri_pool->stat_pbl_count = pbl_pool->count;
21531 multixri_pool->stat_pvt_count = pvt_pool->count;
21532 multixri_pool->stat_busy_count = txcmplq_cnt;
21535 multixri_pool->stat_snapshot_taken++;
21540 * lpfc_adjust_pvt_pool_count - Adjust private pool count
21541 * @phba: pointer to lpfc hba data structure.
21542 * @hwqid: belong to which HWQ.
21544 * This routine moves some XRIs from private to public pool when private pool
21547 void lpfc_adjust_pvt_pool_count(struct lpfc_hba *phba, u32 hwqid)
21549 struct lpfc_multixri_pool *multixri_pool;
21551 u32 prev_io_req_count;
21553 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
21554 if (!multixri_pool)
21556 io_req_count = multixri_pool->io_req_count;
21557 prev_io_req_count = multixri_pool->prev_io_req_count;
21559 if (prev_io_req_count != io_req_count) {
21560 /* Private pool is busy */
21561 multixri_pool->prev_io_req_count = io_req_count;
21563 /* Private pool is not busy.
21564 * Move XRIs from private to public pool.
21566 lpfc_move_xri_pvt_to_pbl(phba, hwqid);
21571 * lpfc_adjust_high_watermark - Adjust high watermark
21572 * @phba: pointer to lpfc hba data structure.
21573 * @hwqid: belong to which HWQ.
21575 * This routine sets high watermark as number of outstanding XRIs,
21576 * but make sure the new value is between xri_limit/2 and xri_limit.
21578 void lpfc_adjust_high_watermark(struct lpfc_hba *phba, u32 hwqid)
21586 struct lpfc_multixri_pool *multixri_pool;
21587 struct lpfc_sli4_hdw_queue *qp;
21589 qp = &phba->sli4_hba.hdwq[hwqid];
21590 multixri_pool = qp->p_multixri_pool;
21591 if (!multixri_pool)
21593 xri_limit = multixri_pool->xri_limit;
21595 watermark_max = xri_limit;
21596 watermark_min = xri_limit / 2;
21598 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
21599 abts_io_bufs = qp->abts_scsi_io_bufs;
21600 abts_io_bufs += qp->abts_nvme_io_bufs;
21602 new_watermark = txcmplq_cnt + abts_io_bufs;
21603 new_watermark = min(watermark_max, new_watermark);
21604 new_watermark = max(watermark_min, new_watermark);
21605 multixri_pool->pvt_pool.high_watermark = new_watermark;
21607 #ifdef LPFC_MXP_STAT
21608 multixri_pool->stat_max_hwm = max(multixri_pool->stat_max_hwm,
21614 * lpfc_move_xri_pvt_to_pbl - Move some XRIs from private to public pool
21615 * @phba: pointer to lpfc hba data structure.
21616 * @hwqid: belong to which HWQ.
21618 * This routine is called from hearbeat timer when pvt_pool is idle.
21619 * All free XRIs are moved from private to public pool on hwqid with 2 steps.
21620 * The first step moves (all - low_watermark) amount of XRIs.
21621 * The second step moves the rest of XRIs.
21623 void lpfc_move_xri_pvt_to_pbl(struct lpfc_hba *phba, u32 hwqid)
21625 struct lpfc_pbl_pool *pbl_pool;
21626 struct lpfc_pvt_pool *pvt_pool;
21627 struct lpfc_sli4_hdw_queue *qp;
21628 struct lpfc_io_buf *lpfc_ncmd;
21629 struct lpfc_io_buf *lpfc_ncmd_next;
21630 unsigned long iflag;
21631 struct list_head tmp_list;
21634 qp = &phba->sli4_hba.hdwq[hwqid];
21635 pbl_pool = &qp->p_multixri_pool->pbl_pool;
21636 pvt_pool = &qp->p_multixri_pool->pvt_pool;
21639 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag, qp, mv_to_pub_pool);
21640 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_from_pvt_pool);
21642 if (pvt_pool->count > pvt_pool->low_watermark) {
21643 /* Step 1: move (all - low_watermark) from pvt_pool
21647 /* Move low watermark of bufs from pvt_pool to tmp_list */
21648 INIT_LIST_HEAD(&tmp_list);
21649 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
21650 &pvt_pool->list, list) {
21651 list_move_tail(&lpfc_ncmd->list, &tmp_list);
21653 if (tmp_count >= pvt_pool->low_watermark)
21657 /* Move all bufs from pvt_pool to pbl_pool */
21658 list_splice_init(&pvt_pool->list, &pbl_pool->list);
21660 /* Move all bufs from tmp_list to pvt_pool */
21661 list_splice(&tmp_list, &pvt_pool->list);
21663 pbl_pool->count += (pvt_pool->count - tmp_count);
21664 pvt_pool->count = tmp_count;
21666 /* Step 2: move the rest from pvt_pool to pbl_pool */
21667 list_splice_init(&pvt_pool->list, &pbl_pool->list);
21668 pbl_pool->count += pvt_pool->count;
21669 pvt_pool->count = 0;
21672 spin_unlock(&pvt_pool->lock);
21673 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
21677 * _lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
21678 * @phba: pointer to lpfc hba data structure
21679 * @qp: pointer to HDW queue
21680 * @pbl_pool: specified public free XRI pool
21681 * @pvt_pool: specified private free XRI pool
21682 * @count: number of XRIs to move
21684 * This routine tries to move some free common bufs from the specified pbl_pool
21685 * to the specified pvt_pool. It might move less than count XRIs if there's not
21686 * enough in public pool.
21689 * true - if XRIs are successfully moved from the specified pbl_pool to the
21690 * specified pvt_pool
21691 * false - if the specified pbl_pool is empty or locked by someone else
21694 _lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
21695 struct lpfc_pbl_pool *pbl_pool,
21696 struct lpfc_pvt_pool *pvt_pool, u32 count)
21698 struct lpfc_io_buf *lpfc_ncmd;
21699 struct lpfc_io_buf *lpfc_ncmd_next;
21700 unsigned long iflag;
21703 ret = spin_trylock_irqsave(&pbl_pool->lock, iflag);
21705 if (pbl_pool->count) {
21706 /* Move a batch of XRIs from public to private pool */
21707 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_to_pvt_pool);
21708 list_for_each_entry_safe(lpfc_ncmd,
21712 list_move_tail(&lpfc_ncmd->list,
21721 spin_unlock(&pvt_pool->lock);
21722 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
21725 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
21732 * lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
21733 * @phba: pointer to lpfc hba data structure.
21734 * @hwqid: belong to which HWQ.
21735 * @count: number of XRIs to move
21737 * This routine tries to find some free common bufs in one of public pools with
21738 * Round Robin method. The search always starts from local hwqid, then the next
21739 * HWQ which was found last time (rrb_next_hwqid). Once a public pool is found,
21740 * a batch of free common bufs are moved to private pool on hwqid.
21741 * It might move less than count XRIs if there's not enough in public pool.
21743 void lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, u32 hwqid, u32 count)
21745 struct lpfc_multixri_pool *multixri_pool;
21746 struct lpfc_multixri_pool *next_multixri_pool;
21747 struct lpfc_pvt_pool *pvt_pool;
21748 struct lpfc_pbl_pool *pbl_pool;
21749 struct lpfc_sli4_hdw_queue *qp;
21754 qp = &phba->sli4_hba.hdwq[hwqid];
21755 multixri_pool = qp->p_multixri_pool;
21756 pvt_pool = &multixri_pool->pvt_pool;
21757 pbl_pool = &multixri_pool->pbl_pool;
21759 /* Check if local pbl_pool is available */
21760 ret = _lpfc_move_xri_pbl_to_pvt(phba, qp, pbl_pool, pvt_pool, count);
21762 #ifdef LPFC_MXP_STAT
21763 multixri_pool->local_pbl_hit_count++;
21768 hwq_count = phba->cfg_hdw_queue;
21770 /* Get the next hwqid which was found last time */
21771 next_hwqid = multixri_pool->rrb_next_hwqid;
21774 /* Go to next hwq */
21775 next_hwqid = (next_hwqid + 1) % hwq_count;
21777 next_multixri_pool =
21778 phba->sli4_hba.hdwq[next_hwqid].p_multixri_pool;
21779 pbl_pool = &next_multixri_pool->pbl_pool;
21781 /* Check if the public free xri pool is available */
21782 ret = _lpfc_move_xri_pbl_to_pvt(
21783 phba, qp, pbl_pool, pvt_pool, count);
21785 /* Exit while-loop if success or all hwqid are checked */
21786 } while (!ret && next_hwqid != multixri_pool->rrb_next_hwqid);
21788 /* Starting point for the next time */
21789 multixri_pool->rrb_next_hwqid = next_hwqid;
21792 /* stats: all public pools are empty*/
21793 multixri_pool->pbl_empty_count++;
21796 #ifdef LPFC_MXP_STAT
21798 if (next_hwqid == hwqid)
21799 multixri_pool->local_pbl_hit_count++;
21801 multixri_pool->other_pbl_hit_count++;
21807 * lpfc_keep_pvt_pool_above_lowwm - Keep pvt_pool above low watermark
21808 * @phba: pointer to lpfc hba data structure.
21809 * @hwqid: belong to which HWQ.
21811 * This routine get a batch of XRIs from pbl_pool if pvt_pool is less than
21814 void lpfc_keep_pvt_pool_above_lowwm(struct lpfc_hba *phba, u32 hwqid)
21816 struct lpfc_multixri_pool *multixri_pool;
21817 struct lpfc_pvt_pool *pvt_pool;
21819 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
21820 pvt_pool = &multixri_pool->pvt_pool;
21822 if (pvt_pool->count < pvt_pool->low_watermark)
21823 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
21827 * lpfc_release_io_buf - Return one IO buf back to free pool
21828 * @phba: pointer to lpfc hba data structure.
21829 * @lpfc_ncmd: IO buf to be returned.
21830 * @qp: belong to which HWQ.
21832 * This routine returns one IO buf back to free pool. If this is an urgent IO,
21833 * the IO buf is returned to expedite pool. If cfg_xri_rebalancing==1,
21834 * the IO buf is returned to pbl_pool or pvt_pool based on watermark and
21835 * xri_limit. If cfg_xri_rebalancing==0, the IO buf is returned to
21836 * lpfc_io_buf_list_put.
21838 void lpfc_release_io_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_ncmd,
21839 struct lpfc_sli4_hdw_queue *qp)
21841 unsigned long iflag;
21842 struct lpfc_pbl_pool *pbl_pool;
21843 struct lpfc_pvt_pool *pvt_pool;
21844 struct lpfc_epd_pool *epd_pool;
21850 /* MUST zero fields if buffer is reused by another protocol */
21851 lpfc_ncmd->nvmeCmd = NULL;
21852 lpfc_ncmd->cur_iocbq.cmd_cmpl = NULL;
21854 if (phba->cfg_xpsgl && !phba->nvmet_support &&
21855 !list_empty(&lpfc_ncmd->dma_sgl_xtra_list))
21856 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
21858 if (!list_empty(&lpfc_ncmd->dma_cmd_rsp_list))
21859 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
21861 if (phba->cfg_xri_rebalancing) {
21862 if (lpfc_ncmd->expedite) {
21863 /* Return to expedite pool */
21864 epd_pool = &phba->epd_pool;
21865 spin_lock_irqsave(&epd_pool->lock, iflag);
21866 list_add_tail(&lpfc_ncmd->list, &epd_pool->list);
21868 spin_unlock_irqrestore(&epd_pool->lock, iflag);
21872 /* Avoid invalid access if an IO sneaks in and is being rejected
21873 * just _after_ xri pools are destroyed in lpfc_offline.
21874 * Nothing much can be done at this point.
21876 if (!qp->p_multixri_pool)
21879 pbl_pool = &qp->p_multixri_pool->pbl_pool;
21880 pvt_pool = &qp->p_multixri_pool->pvt_pool;
21882 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
21883 abts_io_bufs = qp->abts_scsi_io_bufs;
21884 abts_io_bufs += qp->abts_nvme_io_bufs;
21886 xri_owned = pvt_pool->count + txcmplq_cnt + abts_io_bufs;
21887 xri_limit = qp->p_multixri_pool->xri_limit;
21889 #ifdef LPFC_MXP_STAT
21890 if (xri_owned <= xri_limit)
21891 qp->p_multixri_pool->below_limit_count++;
21893 qp->p_multixri_pool->above_limit_count++;
21896 /* XRI goes to either public or private free xri pool
21897 * based on watermark and xri_limit
21899 if ((pvt_pool->count < pvt_pool->low_watermark) ||
21900 (xri_owned < xri_limit &&
21901 pvt_pool->count < pvt_pool->high_watermark)) {
21902 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag,
21903 qp, free_pvt_pool);
21904 list_add_tail(&lpfc_ncmd->list,
21907 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
21909 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag,
21910 qp, free_pub_pool);
21911 list_add_tail(&lpfc_ncmd->list,
21914 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
21917 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag,
21919 list_add_tail(&lpfc_ncmd->list,
21920 &qp->lpfc_io_buf_list_put);
21922 spin_unlock_irqrestore(&qp->io_buf_list_put_lock,
21928 * lpfc_get_io_buf_from_private_pool - Get one free IO buf from private pool
21929 * @phba: pointer to lpfc hba data structure.
21930 * @qp: pointer to HDW queue
21931 * @pvt_pool: pointer to private pool data structure.
21932 * @ndlp: pointer to lpfc nodelist data structure.
21934 * This routine tries to get one free IO buf from private pool.
21937 * pointer to one free IO buf - if private pool is not empty
21938 * NULL - if private pool is empty
21940 static struct lpfc_io_buf *
21941 lpfc_get_io_buf_from_private_pool(struct lpfc_hba *phba,
21942 struct lpfc_sli4_hdw_queue *qp,
21943 struct lpfc_pvt_pool *pvt_pool,
21944 struct lpfc_nodelist *ndlp)
21946 struct lpfc_io_buf *lpfc_ncmd;
21947 struct lpfc_io_buf *lpfc_ncmd_next;
21948 unsigned long iflag;
21950 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag, qp, alloc_pvt_pool);
21951 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
21952 &pvt_pool->list, list) {
21953 if (lpfc_test_rrq_active(
21954 phba, ndlp, lpfc_ncmd->cur_iocbq.sli4_lxritag))
21956 list_del(&lpfc_ncmd->list);
21958 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
21961 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
21967 * lpfc_get_io_buf_from_expedite_pool - Get one free IO buf from expedite pool
21968 * @phba: pointer to lpfc hba data structure.
21970 * This routine tries to get one free IO buf from expedite pool.
21973 * pointer to one free IO buf - if expedite pool is not empty
21974 * NULL - if expedite pool is empty
21976 static struct lpfc_io_buf *
21977 lpfc_get_io_buf_from_expedite_pool(struct lpfc_hba *phba)
21979 struct lpfc_io_buf *lpfc_ncmd = NULL, *iter;
21980 struct lpfc_io_buf *lpfc_ncmd_next;
21981 unsigned long iflag;
21982 struct lpfc_epd_pool *epd_pool;
21984 epd_pool = &phba->epd_pool;
21986 spin_lock_irqsave(&epd_pool->lock, iflag);
21987 if (epd_pool->count > 0) {
21988 list_for_each_entry_safe(iter, lpfc_ncmd_next,
21989 &epd_pool->list, list) {
21990 list_del(&iter->list);
21996 spin_unlock_irqrestore(&epd_pool->lock, iflag);
22002 * lpfc_get_io_buf_from_multixri_pools - Get one free IO bufs
22003 * @phba: pointer to lpfc hba data structure.
22004 * @ndlp: pointer to lpfc nodelist data structure.
22005 * @hwqid: belong to which HWQ
22006 * @expedite: 1 means this request is urgent.
22008 * This routine will do the following actions and then return a pointer to
22011 * 1. If private free xri count is empty, move some XRIs from public to
22013 * 2. Get one XRI from private free xri pool.
22014 * 3. If we fail to get one from pvt_pool and this is an expedite request,
22015 * get one free xri from expedite pool.
22017 * Note: ndlp is only used on SCSI side for RRQ testing.
22018 * The caller should pass NULL for ndlp on NVME side.
22021 * pointer to one free IO buf - if private pool is not empty
22022 * NULL - if private pool is empty
22024 static struct lpfc_io_buf *
22025 lpfc_get_io_buf_from_multixri_pools(struct lpfc_hba *phba,
22026 struct lpfc_nodelist *ndlp,
22027 int hwqid, int expedite)
22029 struct lpfc_sli4_hdw_queue *qp;
22030 struct lpfc_multixri_pool *multixri_pool;
22031 struct lpfc_pvt_pool *pvt_pool;
22032 struct lpfc_io_buf *lpfc_ncmd;
22034 qp = &phba->sli4_hba.hdwq[hwqid];
22037 lpfc_printf_log(phba, KERN_INFO,
22038 LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
22039 "5556 NULL qp for hwqid x%x\n", hwqid);
22042 multixri_pool = qp->p_multixri_pool;
22043 if (!multixri_pool) {
22044 lpfc_printf_log(phba, KERN_INFO,
22045 LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
22046 "5557 NULL multixri for hwqid x%x\n", hwqid);
22049 pvt_pool = &multixri_pool->pvt_pool;
22051 lpfc_printf_log(phba, KERN_INFO,
22052 LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
22053 "5558 NULL pvt_pool for hwqid x%x\n", hwqid);
22056 multixri_pool->io_req_count++;
22058 /* If pvt_pool is empty, move some XRIs from public to private pool */
22059 if (pvt_pool->count == 0)
22060 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
22062 /* Get one XRI from private free xri pool */
22063 lpfc_ncmd = lpfc_get_io_buf_from_private_pool(phba, qp, pvt_pool, ndlp);
22066 lpfc_ncmd->hdwq = qp;
22067 lpfc_ncmd->hdwq_no = hwqid;
22068 } else if (expedite) {
22069 /* If we fail to get one from pvt_pool and this is an expedite
22070 * request, get one free xri from expedite pool.
22072 lpfc_ncmd = lpfc_get_io_buf_from_expedite_pool(phba);
22078 static inline struct lpfc_io_buf *
22079 lpfc_io_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int idx)
22081 struct lpfc_sli4_hdw_queue *qp;
22082 struct lpfc_io_buf *lpfc_cmd, *lpfc_cmd_next;
22084 qp = &phba->sli4_hba.hdwq[idx];
22085 list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next,
22086 &qp->lpfc_io_buf_list_get, list) {
22087 if (lpfc_test_rrq_active(phba, ndlp,
22088 lpfc_cmd->cur_iocbq.sli4_lxritag))
22091 if (lpfc_cmd->flags & LPFC_SBUF_NOT_POSTED)
22094 list_del_init(&lpfc_cmd->list);
22096 lpfc_cmd->hdwq = qp;
22097 lpfc_cmd->hdwq_no = idx;
22104 * lpfc_get_io_buf - Get one IO buffer from free pool
22105 * @phba: The HBA for which this call is being executed.
22106 * @ndlp: pointer to lpfc nodelist data structure.
22107 * @hwqid: belong to which HWQ
22108 * @expedite: 1 means this request is urgent.
22110 * This routine gets one IO buffer from free pool. If cfg_xri_rebalancing==1,
22111 * removes a IO buffer from multiXRI pools. If cfg_xri_rebalancing==0, removes
22112 * a IO buffer from head of @hdwq io_buf_list and returns to caller.
22114 * Note: ndlp is only used on SCSI side for RRQ testing.
22115 * The caller should pass NULL for ndlp on NVME side.
22119 * Pointer to lpfc_io_buf - Success
22121 struct lpfc_io_buf *lpfc_get_io_buf(struct lpfc_hba *phba,
22122 struct lpfc_nodelist *ndlp,
22123 u32 hwqid, int expedite)
22125 struct lpfc_sli4_hdw_queue *qp;
22126 unsigned long iflag;
22127 struct lpfc_io_buf *lpfc_cmd;
22129 qp = &phba->sli4_hba.hdwq[hwqid];
22132 lpfc_printf_log(phba, KERN_WARNING,
22133 LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
22134 "5555 NULL qp for hwqid x%x\n", hwqid);
22138 if (phba->cfg_xri_rebalancing)
22139 lpfc_cmd = lpfc_get_io_buf_from_multixri_pools(
22140 phba, ndlp, hwqid, expedite);
22142 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_get_lock, iflag,
22143 qp, alloc_xri_get);
22144 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite)
22145 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
22147 lpfc_qp_spin_lock(&qp->io_buf_list_put_lock,
22148 qp, alloc_xri_put);
22149 list_splice(&qp->lpfc_io_buf_list_put,
22150 &qp->lpfc_io_buf_list_get);
22151 qp->get_io_bufs += qp->put_io_bufs;
22152 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
22153 qp->put_io_bufs = 0;
22154 spin_unlock(&qp->io_buf_list_put_lock);
22155 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT ||
22157 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
22159 spin_unlock_irqrestore(&qp->io_buf_list_get_lock, iflag);
22166 * lpfc_read_object - Retrieve object data from HBA
22167 * @phba: The HBA for which this call is being executed.
22168 * @rdobject: Pathname of object data we want to read.
22169 * @datap: Pointer to where data will be copied to.
22170 * @datasz: size of data area
22172 * This routine is limited to object sizes of LPFC_BPL_SIZE (1024) or less.
22173 * The data will be truncated if datasz is not large enough.
22174 * Version 1 is not supported with Embedded mbox cmd, so we must use version 0.
22175 * Returns the actual bytes read from the object.
22177 * This routine is hard coded to use a poll completion. Unlike other
22178 * sli4_config mailboxes, it uses lpfc_mbuf memory which is not
22179 * cleaned up in lpfc_sli4_cmd_mbox_free. If this routine is modified
22180 * to use interrupt-based completions, code is needed to fully cleanup
22184 lpfc_read_object(struct lpfc_hba *phba, char *rdobject, uint32_t *datap,
22187 struct lpfc_mbx_read_object *read_object;
22188 LPFC_MBOXQ_t *mbox;
22189 int rc, length, eof, j, byte_cnt = 0;
22190 uint32_t shdr_status, shdr_add_status;
22191 union lpfc_sli4_cfg_shdr *shdr;
22192 struct lpfc_dmabuf *pcmd;
22193 u32 rd_object_name[LPFC_MBX_OBJECT_NAME_LEN_DW] = {0};
22195 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
22198 length = (sizeof(struct lpfc_mbx_read_object) -
22199 sizeof(struct lpfc_sli4_cfg_mhdr));
22200 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
22201 LPFC_MBOX_OPCODE_READ_OBJECT,
22202 length, LPFC_SLI4_MBX_EMBED);
22203 read_object = &mbox->u.mqe.un.read_object;
22204 shdr = (union lpfc_sli4_cfg_shdr *)&read_object->header.cfg_shdr;
22206 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_0);
22207 bf_set(lpfc_mbx_rd_object_rlen, &read_object->u.request, datasz);
22208 read_object->u.request.rd_object_offset = 0;
22209 read_object->u.request.rd_object_cnt = 1;
22211 memset((void *)read_object->u.request.rd_object_name, 0,
22213 scnprintf((char *)rd_object_name, sizeof(rd_object_name), rdobject);
22214 for (j = 0; j < strlen(rdobject); j++)
22215 read_object->u.request.rd_object_name[j] =
22216 cpu_to_le32(rd_object_name[j]);
22218 pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL);
22220 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
22221 if (!pcmd || !pcmd->virt) {
22223 mempool_free(mbox, phba->mbox_mem_pool);
22226 memset((void *)pcmd->virt, 0, LPFC_BPL_SIZE);
22227 read_object->u.request.rd_object_hbuf[0].pa_lo =
22228 putPaddrLow(pcmd->phys);
22229 read_object->u.request.rd_object_hbuf[0].pa_hi =
22230 putPaddrHigh(pcmd->phys);
22231 read_object->u.request.rd_object_hbuf[0].length = LPFC_BPL_SIZE;
22233 mbox->vport = phba->pport;
22234 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
22235 mbox->ctx_ndlp = NULL;
22237 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
22238 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
22239 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
22241 if (shdr_status == STATUS_FAILED &&
22242 shdr_add_status == ADD_STATUS_INVALID_OBJECT_NAME) {
22243 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_CGN_MGMT,
22244 "4674 No port cfg file in FW.\n");
22245 byte_cnt = -ENOENT;
22246 } else if (shdr_status || shdr_add_status || rc) {
22247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_CGN_MGMT,
22248 "2625 READ_OBJECT mailbox failed with "
22249 "status x%x add_status x%x, mbx status x%x\n",
22250 shdr_status, shdr_add_status, rc);
22254 length = read_object->u.response.rd_object_actual_rlen;
22255 eof = bf_get(lpfc_mbx_rd_object_eof, &read_object->u.response);
22256 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_CGN_MGMT,
22257 "2626 READ_OBJECT Success len %d:%d, EOF %d\n",
22258 length, datasz, eof);
22260 /* Detect the port config file exists but is empty */
22261 if (!length && eof) {
22267 lpfc_sli_pcimem_bcopy(pcmd->virt, datap, byte_cnt);
22271 /* This is an embedded SLI4 mailbox with an external buffer allocated.
22272 * Free the pcmd and then cleanup with the correct routine.
22274 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
22276 lpfc_sli4_mbox_cmd_free(phba, mbox);
22281 * lpfc_get_sgl_per_hdwq - Get one SGL chunk from hdwq's pool
22282 * @phba: The HBA for which this call is being executed.
22283 * @lpfc_buf: IO buf structure to append the SGL chunk
22285 * This routine gets one SGL chunk buffer from hdwq's SGL chunk pool,
22286 * and will allocate an SGL chunk if the pool is empty.
22290 * Pointer to sli4_hybrid_sgl - Success
22292 struct sli4_hybrid_sgl *
22293 lpfc_get_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
22295 struct sli4_hybrid_sgl *list_entry = NULL;
22296 struct sli4_hybrid_sgl *tmp = NULL;
22297 struct sli4_hybrid_sgl *allocated_sgl = NULL;
22298 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
22299 struct list_head *buf_list = &hdwq->sgl_list;
22300 unsigned long iflags;
22302 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22304 if (likely(!list_empty(buf_list))) {
22305 /* break off 1 chunk from the sgl_list */
22306 list_for_each_entry_safe(list_entry, tmp,
22307 buf_list, list_node) {
22308 list_move_tail(&list_entry->list_node,
22309 &lpfc_buf->dma_sgl_xtra_list);
22313 /* allocate more */
22314 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22315 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
22316 cpu_to_node(hdwq->io_wq->chann));
22318 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
22319 "8353 error kmalloc memory for HDWQ "
22321 lpfc_buf->hdwq_no, __func__);
22325 tmp->dma_sgl = dma_pool_alloc(phba->lpfc_sg_dma_buf_pool,
22326 GFP_ATOMIC, &tmp->dma_phys_sgl);
22327 if (!tmp->dma_sgl) {
22328 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
22329 "8354 error pool_alloc memory for HDWQ "
22331 lpfc_buf->hdwq_no, __func__);
22336 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22337 list_add_tail(&tmp->list_node, &lpfc_buf->dma_sgl_xtra_list);
22340 allocated_sgl = list_last_entry(&lpfc_buf->dma_sgl_xtra_list,
22341 struct sli4_hybrid_sgl,
22344 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22346 return allocated_sgl;
22350 * lpfc_put_sgl_per_hdwq - Put one SGL chunk into hdwq pool
22351 * @phba: The HBA for which this call is being executed.
22352 * @lpfc_buf: IO buf structure with the SGL chunk
22354 * This routine puts one SGL chunk buffer into hdwq's SGL chunk pool.
22361 lpfc_put_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
22364 struct sli4_hybrid_sgl *list_entry = NULL;
22365 struct sli4_hybrid_sgl *tmp = NULL;
22366 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
22367 struct list_head *buf_list = &hdwq->sgl_list;
22368 unsigned long iflags;
22370 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22372 if (likely(!list_empty(&lpfc_buf->dma_sgl_xtra_list))) {
22373 list_for_each_entry_safe(list_entry, tmp,
22374 &lpfc_buf->dma_sgl_xtra_list,
22376 list_move_tail(&list_entry->list_node,
22383 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22388 * lpfc_free_sgl_per_hdwq - Free all SGL chunks of hdwq pool
22389 * @phba: phba object
22390 * @hdwq: hdwq to cleanup sgl buff resources on
22392 * This routine frees all SGL chunks of hdwq SGL chunk pool.
22398 lpfc_free_sgl_per_hdwq(struct lpfc_hba *phba,
22399 struct lpfc_sli4_hdw_queue *hdwq)
22401 struct list_head *buf_list = &hdwq->sgl_list;
22402 struct sli4_hybrid_sgl *list_entry = NULL;
22403 struct sli4_hybrid_sgl *tmp = NULL;
22404 unsigned long iflags;
22406 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22408 /* Free sgl pool */
22409 list_for_each_entry_safe(list_entry, tmp,
22410 buf_list, list_node) {
22411 list_del(&list_entry->list_node);
22412 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
22413 list_entry->dma_sgl,
22414 list_entry->dma_phys_sgl);
22418 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22422 * lpfc_get_cmd_rsp_buf_per_hdwq - Get one CMD/RSP buffer from hdwq
22423 * @phba: The HBA for which this call is being executed.
22424 * @lpfc_buf: IO buf structure to attach the CMD/RSP buffer
22426 * This routine gets one CMD/RSP buffer from hdwq's CMD/RSP pool,
22427 * and will allocate an CMD/RSP buffer if the pool is empty.
22431 * Pointer to fcp_cmd_rsp_buf - Success
22433 struct fcp_cmd_rsp_buf *
22434 lpfc_get_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
22435 struct lpfc_io_buf *lpfc_buf)
22437 struct fcp_cmd_rsp_buf *list_entry = NULL;
22438 struct fcp_cmd_rsp_buf *tmp = NULL;
22439 struct fcp_cmd_rsp_buf *allocated_buf = NULL;
22440 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
22441 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
22442 unsigned long iflags;
22444 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22446 if (likely(!list_empty(buf_list))) {
22447 /* break off 1 chunk from the list */
22448 list_for_each_entry_safe(list_entry, tmp,
22451 list_move_tail(&list_entry->list_node,
22452 &lpfc_buf->dma_cmd_rsp_list);
22456 /* allocate more */
22457 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22458 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
22459 cpu_to_node(hdwq->io_wq->chann));
22461 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
22462 "8355 error kmalloc memory for HDWQ "
22464 lpfc_buf->hdwq_no, __func__);
22468 tmp->fcp_cmnd = dma_pool_zalloc(phba->lpfc_cmd_rsp_buf_pool,
22470 &tmp->fcp_cmd_rsp_dma_handle);
22472 if (!tmp->fcp_cmnd) {
22473 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
22474 "8356 error pool_alloc memory for HDWQ "
22476 lpfc_buf->hdwq_no, __func__);
22481 tmp->fcp_rsp = (struct fcp_rsp *)((uint8_t *)tmp->fcp_cmnd +
22482 sizeof(struct fcp_cmnd));
22484 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22485 list_add_tail(&tmp->list_node, &lpfc_buf->dma_cmd_rsp_list);
22488 allocated_buf = list_last_entry(&lpfc_buf->dma_cmd_rsp_list,
22489 struct fcp_cmd_rsp_buf,
22492 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22494 return allocated_buf;
22498 * lpfc_put_cmd_rsp_buf_per_hdwq - Put one CMD/RSP buffer into hdwq pool
22499 * @phba: The HBA for which this call is being executed.
22500 * @lpfc_buf: IO buf structure with the CMD/RSP buf
22502 * This routine puts one CMD/RSP buffer into executing CPU's CMD/RSP pool.
22509 lpfc_put_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
22510 struct lpfc_io_buf *lpfc_buf)
22513 struct fcp_cmd_rsp_buf *list_entry = NULL;
22514 struct fcp_cmd_rsp_buf *tmp = NULL;
22515 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
22516 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
22517 unsigned long iflags;
22519 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22521 if (likely(!list_empty(&lpfc_buf->dma_cmd_rsp_list))) {
22522 list_for_each_entry_safe(list_entry, tmp,
22523 &lpfc_buf->dma_cmd_rsp_list,
22525 list_move_tail(&list_entry->list_node,
22532 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22537 * lpfc_free_cmd_rsp_buf_per_hdwq - Free all CMD/RSP chunks of hdwq pool
22538 * @phba: phba object
22539 * @hdwq: hdwq to cleanup cmd rsp buff resources on
22541 * This routine frees all CMD/RSP buffers of hdwq's CMD/RSP buf pool.
22547 lpfc_free_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
22548 struct lpfc_sli4_hdw_queue *hdwq)
22550 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
22551 struct fcp_cmd_rsp_buf *list_entry = NULL;
22552 struct fcp_cmd_rsp_buf *tmp = NULL;
22553 unsigned long iflags;
22555 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
22557 /* Free cmd_rsp buf pool */
22558 list_for_each_entry_safe(list_entry, tmp,
22561 list_del(&list_entry->list_node);
22562 dma_pool_free(phba->lpfc_cmd_rsp_buf_pool,
22563 list_entry->fcp_cmnd,
22564 list_entry->fcp_cmd_rsp_dma_handle);
22568 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
22572 * lpfc_sli_prep_wqe - Prepare WQE for the command to be posted
22573 * @phba: phba object
22574 * @job: job entry of the command to be posted.
22576 * Fill the common fields of the wqe for each of the command.
22582 lpfc_sli_prep_wqe(struct lpfc_hba *phba, struct lpfc_iocbq *job)
22587 u32 fip, abort_tag;
22588 struct lpfc_nodelist *ndlp = NULL;
22589 union lpfc_wqe128 *wqe = &job->wqe;
22590 u8 command_type = ELS_COMMAND_NON_FIP;
22592 fip = phba->hba_flag & HBA_FIP_SUPPORT;
22593 /* The fcp commands will set command type */
22594 if (job->cmd_flag & LPFC_IO_FCP)
22595 command_type = FCP_COMMAND;
22596 else if (fip && (job->cmd_flag & LPFC_FIP_ELS_ID_MASK))
22597 command_type = ELS_COMMAND_FIP;
22599 command_type = ELS_COMMAND_NON_FIP;
22601 abort_tag = job->iotag;
22602 cmnd = bf_get(wqe_cmnd, &wqe->els_req.wqe_com);
22605 case CMD_ELS_REQUEST64_WQE:
22608 if_type = bf_get(lpfc_sli_intf_if_type,
22609 &phba->sli4_hba.sli_intf);
22610 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
22611 pcmd = (u32 *)job->cmd_dmabuf->virt;
22612 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
22613 *pcmd == ELS_CMD_SCR ||
22614 *pcmd == ELS_CMD_RDF ||
22615 *pcmd == ELS_CMD_EDC ||
22616 *pcmd == ELS_CMD_RSCN_XMT ||
22617 *pcmd == ELS_CMD_FDISC ||
22618 *pcmd == ELS_CMD_LOGO ||
22619 *pcmd == ELS_CMD_QFPA ||
22620 *pcmd == ELS_CMD_UVEM ||
22621 *pcmd == ELS_CMD_PLOGI)) {
22622 bf_set(els_req64_sp, &wqe->els_req, 1);
22623 bf_set(els_req64_sid, &wqe->els_req,
22624 job->vport->fc_myDID);
22626 if ((*pcmd == ELS_CMD_FLOGI) &&
22627 !(phba->fc_topology ==
22628 LPFC_TOPOLOGY_LOOP))
22629 bf_set(els_req64_sid, &wqe->els_req, 0);
22631 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
22632 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
22633 phba->vpi_ids[job->vport->vpi]);
22635 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
22636 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
22637 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
22641 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
22642 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
22644 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
22645 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
22646 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
22647 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
22648 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
22650 case CMD_XMIT_ELS_RSP64_WQE:
22654 wqe->xmit_els_rsp.word4 = 0;
22656 if_type = bf_get(lpfc_sli_intf_if_type,
22657 &phba->sli4_hba.sli_intf);
22658 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
22659 if (job->vport->fc_flag & FC_PT2PT) {
22660 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
22661 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
22662 job->vport->fc_myDID);
22663 if (job->vport->fc_myDID == Fabric_DID) {
22664 bf_set(wqe_els_did,
22665 &wqe->xmit_els_rsp.wqe_dest, 0);
22670 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
22671 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
22672 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
22673 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
22674 LPFC_WQE_LENLOC_WORD3);
22675 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
22677 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
22678 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
22679 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
22680 job->vport->fc_myDID);
22681 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
22684 if (phba->sli_rev == LPFC_SLI_REV4) {
22685 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
22686 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
22688 if (bf_get(wqe_ct, &wqe->xmit_els_rsp.wqe_com))
22689 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
22690 phba->vpi_ids[job->vport->vpi]);
22692 command_type = OTHER_COMMAND;
22694 case CMD_GEN_REQUEST64_WQE:
22696 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
22697 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
22698 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
22699 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
22700 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
22701 command_type = OTHER_COMMAND;
22703 case CMD_XMIT_SEQUENCE64_WQE:
22704 if (phba->link_flag & LS_LOOPBACK_MODE)
22705 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
22707 wqe->xmit_sequence.rsvd3 = 0;
22708 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
22709 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
22710 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
22711 LPFC_WQE_IOD_WRITE);
22712 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
22713 LPFC_WQE_LENLOC_WORD12);
22714 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
22715 command_type = OTHER_COMMAND;
22717 case CMD_XMIT_BLS_RSP64_WQE:
22718 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
22719 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
22720 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
22721 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
22722 phba->vpi_ids[phba->pport->vpi]);
22723 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
22724 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
22725 LPFC_WQE_LENLOC_NONE);
22726 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
22727 command_type = OTHER_COMMAND;
22729 case CMD_FCP_ICMND64_WQE: /* task mgmt commands */
22730 case CMD_ABORT_XRI_WQE: /* abort iotag */
22731 case CMD_SEND_FRAME: /* mds loopback */
22732 /* cases already formatted for sli4 wqe - no chgs necessary */
22736 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
22737 "6207 Invalid command 0x%x\n",
22742 wqe->generic.wqe_com.abort_tag = abort_tag;
22743 bf_set(wqe_reqtag, &wqe->generic.wqe_com, job->iotag);
22744 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
22745 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);