1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channsel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 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 ********************************************************************/
23 #include <linux/pci.h>
24 #include <linux/slab.h>
25 #include <linux/interrupt.h>
26 #include <linux/delay.h>
27 #include <asm/unaligned.h>
28 #include <linux/crc-t10dif.h>
29 #include <net/checksum.h>
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_device.h>
33 #include <scsi/scsi_eh.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_tcq.h>
36 #include <scsi/scsi_transport_fc.h>
37 #include <scsi/fc/fc_fs.h>
39 #include <linux/nvme.h>
40 #include <linux/nvme-fc-driver.h>
41 #include <linux/nvme-fc.h>
43 #include "lpfc_version.h"
47 #include "lpfc_sli4.h"
49 #include "lpfc_disc.h"
51 #include "lpfc_scsi.h"
52 #include "lpfc_nvme.h"
53 #include "lpfc_nvmet.h"
54 #include "lpfc_logmsg.h"
55 #include "lpfc_crtn.h"
56 #include "lpfc_vport.h"
57 #include "lpfc_debugfs.h"
59 static struct lpfc_iocbq *lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *,
60 struct lpfc_nvmet_rcv_ctx *,
63 static struct lpfc_iocbq *lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *,
64 struct lpfc_nvmet_rcv_ctx *);
65 static int lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *,
66 struct lpfc_nvmet_rcv_ctx *,
68 static int lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *,
69 struct lpfc_nvmet_rcv_ctx *,
71 static int lpfc_nvmet_unsol_ls_issue_abort(struct lpfc_hba *,
72 struct lpfc_nvmet_rcv_ctx *,
74 static void lpfc_nvmet_wqfull_flush(struct lpfc_hba *, struct lpfc_queue *,
75 struct lpfc_nvmet_rcv_ctx *);
76 static void lpfc_nvmet_fcp_rqst_defer_work(struct work_struct *);
78 static void lpfc_nvmet_process_rcv_fcp_req(struct lpfc_nvmet_ctxbuf *ctx_buf);
80 static union lpfc_wqe128 lpfc_tsend_cmd_template;
81 static union lpfc_wqe128 lpfc_treceive_cmd_template;
82 static union lpfc_wqe128 lpfc_trsp_cmd_template;
84 /* Setup WQE templates for NVME IOs */
86 lpfc_nvmet_cmd_template(void)
88 union lpfc_wqe128 *wqe;
91 wqe = &lpfc_tsend_cmd_template;
92 memset(wqe, 0, sizeof(union lpfc_wqe128));
94 /* Word 0, 1, 2 - BDE is variable */
96 /* Word 3 - payload_offset_len is zero */
98 /* Word 4 - relative_offset is variable */
100 /* Word 5 - is zero */
102 /* Word 6 - ctxt_tag, xri_tag is variable */
104 /* Word 7 - wqe_ar is variable */
105 bf_set(wqe_cmnd, &wqe->fcp_tsend.wqe_com, CMD_FCP_TSEND64_WQE);
106 bf_set(wqe_pu, &wqe->fcp_tsend.wqe_com, PARM_REL_OFF);
107 bf_set(wqe_class, &wqe->fcp_tsend.wqe_com, CLASS3);
108 bf_set(wqe_ct, &wqe->fcp_tsend.wqe_com, SLI4_CT_RPI);
109 bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 1);
111 /* Word 8 - abort_tag is variable */
113 /* Word 9 - reqtag, rcvoxid is variable */
115 /* Word 10 - wqes, xc is variable */
116 bf_set(wqe_nvme, &wqe->fcp_tsend.wqe_com, 1);
117 bf_set(wqe_dbde, &wqe->fcp_tsend.wqe_com, 1);
118 bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 0);
119 bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 1);
120 bf_set(wqe_iod, &wqe->fcp_tsend.wqe_com, LPFC_WQE_IOD_WRITE);
121 bf_set(wqe_lenloc, &wqe->fcp_tsend.wqe_com, LPFC_WQE_LENLOC_WORD12);
123 /* Word 11 - sup, irsp, irsplen is variable */
124 bf_set(wqe_cmd_type, &wqe->fcp_tsend.wqe_com, FCP_COMMAND_TSEND);
125 bf_set(wqe_cqid, &wqe->fcp_tsend.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
126 bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0);
127 bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 0);
128 bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com, 0);
129 bf_set(wqe_pbde, &wqe->fcp_tsend.wqe_com, 0);
131 /* Word 12 - fcp_data_len is variable */
133 /* Word 13, 14, 15 - PBDE is zero */
135 /* TRECEIVE template */
136 wqe = &lpfc_treceive_cmd_template;
137 memset(wqe, 0, sizeof(union lpfc_wqe128));
139 /* Word 0, 1, 2 - BDE is variable */
142 wqe->fcp_treceive.payload_offset_len = TXRDY_PAYLOAD_LEN;
144 /* Word 4 - relative_offset is variable */
146 /* Word 5 - is zero */
148 /* Word 6 - ctxt_tag, xri_tag is variable */
151 bf_set(wqe_cmnd, &wqe->fcp_treceive.wqe_com, CMD_FCP_TRECEIVE64_WQE);
152 bf_set(wqe_pu, &wqe->fcp_treceive.wqe_com, PARM_REL_OFF);
153 bf_set(wqe_class, &wqe->fcp_treceive.wqe_com, CLASS3);
154 bf_set(wqe_ct, &wqe->fcp_treceive.wqe_com, SLI4_CT_RPI);
155 bf_set(wqe_ar, &wqe->fcp_treceive.wqe_com, 0);
157 /* Word 8 - abort_tag is variable */
159 /* Word 9 - reqtag, rcvoxid is variable */
161 /* Word 10 - xc is variable */
162 bf_set(wqe_dbde, &wqe->fcp_treceive.wqe_com, 1);
163 bf_set(wqe_wqes, &wqe->fcp_treceive.wqe_com, 0);
164 bf_set(wqe_nvme, &wqe->fcp_treceive.wqe_com, 1);
165 bf_set(wqe_iod, &wqe->fcp_treceive.wqe_com, LPFC_WQE_IOD_READ);
166 bf_set(wqe_lenloc, &wqe->fcp_treceive.wqe_com, LPFC_WQE_LENLOC_WORD12);
167 bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 1);
169 /* Word 11 - pbde is variable */
170 bf_set(wqe_cmd_type, &wqe->fcp_treceive.wqe_com, FCP_COMMAND_TRECEIVE);
171 bf_set(wqe_cqid, &wqe->fcp_treceive.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
172 bf_set(wqe_sup, &wqe->fcp_treceive.wqe_com, 0);
173 bf_set(wqe_irsp, &wqe->fcp_treceive.wqe_com, 0);
174 bf_set(wqe_irsplen, &wqe->fcp_treceive.wqe_com, 0);
175 bf_set(wqe_pbde, &wqe->fcp_treceive.wqe_com, 1);
177 /* Word 12 - fcp_data_len is variable */
179 /* Word 13, 14, 15 - PBDE is variable */
182 wqe = &lpfc_trsp_cmd_template;
183 memset(wqe, 0, sizeof(union lpfc_wqe128));
185 /* Word 0, 1, 2 - BDE is variable */
187 /* Word 3 - response_len is variable */
189 /* Word 4, 5 - is zero */
191 /* Word 6 - ctxt_tag, xri_tag is variable */
194 bf_set(wqe_cmnd, &wqe->fcp_trsp.wqe_com, CMD_FCP_TRSP64_WQE);
195 bf_set(wqe_pu, &wqe->fcp_trsp.wqe_com, PARM_UNUSED);
196 bf_set(wqe_class, &wqe->fcp_trsp.wqe_com, CLASS3);
197 bf_set(wqe_ct, &wqe->fcp_trsp.wqe_com, SLI4_CT_RPI);
198 bf_set(wqe_ag, &wqe->fcp_trsp.wqe_com, 1); /* wqe_ar */
200 /* Word 8 - abort_tag is variable */
202 /* Word 9 - reqtag is variable */
204 /* Word 10 wqes, xc is variable */
205 bf_set(wqe_dbde, &wqe->fcp_trsp.wqe_com, 1);
206 bf_set(wqe_nvme, &wqe->fcp_trsp.wqe_com, 1);
207 bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 0);
208 bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, 0);
209 bf_set(wqe_iod, &wqe->fcp_trsp.wqe_com, LPFC_WQE_IOD_NONE);
210 bf_set(wqe_lenloc, &wqe->fcp_trsp.wqe_com, LPFC_WQE_LENLOC_WORD3);
212 /* Word 11 irsp, irsplen is variable */
213 bf_set(wqe_cmd_type, &wqe->fcp_trsp.wqe_com, FCP_COMMAND_TRSP);
214 bf_set(wqe_cqid, &wqe->fcp_trsp.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
215 bf_set(wqe_sup, &wqe->fcp_trsp.wqe_com, 0);
216 bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 0);
217 bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com, 0);
218 bf_set(wqe_pbde, &wqe->fcp_trsp.wqe_com, 0);
220 /* Word 12, 13, 14, 15 - is zero */
223 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
224 static struct lpfc_nvmet_rcv_ctx *
225 lpfc_nvmet_get_ctx_for_xri(struct lpfc_hba *phba, u16 xri)
227 struct lpfc_nvmet_rcv_ctx *ctxp;
231 spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
232 list_for_each_entry(ctxp, &phba->sli4_hba.t_active_ctx_list, list) {
233 if (ctxp->ctxbuf->sglq->sli4_xritag != xri)
239 spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
246 static struct lpfc_nvmet_rcv_ctx *
247 lpfc_nvmet_get_ctx_for_oxid(struct lpfc_hba *phba, u16 oxid, u32 sid)
249 struct lpfc_nvmet_rcv_ctx *ctxp;
253 spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
254 list_for_each_entry(ctxp, &phba->sli4_hba.t_active_ctx_list, list) {
255 if (ctxp->oxid != oxid || ctxp->sid != sid)
261 spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
270 lpfc_nvmet_defer_release(struct lpfc_hba *phba, struct lpfc_nvmet_rcv_ctx *ctxp)
272 lockdep_assert_held(&ctxp->ctxlock);
274 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
275 "6313 NVMET Defer ctx release oxid x%x flg x%x\n",
276 ctxp->oxid, ctxp->flag);
278 if (ctxp->flag & LPFC_NVMET_CTX_RLS)
281 ctxp->flag |= LPFC_NVMET_CTX_RLS;
282 spin_lock(&phba->sli4_hba.t_active_list_lock);
283 list_del(&ctxp->list);
284 spin_unlock(&phba->sli4_hba.t_active_list_lock);
285 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
286 list_add_tail(&ctxp->list, &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
287 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
291 * lpfc_nvmet_xmt_ls_rsp_cmp - Completion handler for LS Response
292 * @phba: Pointer to HBA context object.
293 * @cmdwqe: Pointer to driver command WQE object.
294 * @wcqe: Pointer to driver response CQE object.
296 * The function is called from SLI ring event handler with no
297 * lock held. This function is the completion handler for NVME LS commands
298 * The function frees memory resources used for the NVME commands.
301 lpfc_nvmet_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
302 struct lpfc_wcqe_complete *wcqe)
304 struct lpfc_nvmet_tgtport *tgtp;
305 struct nvmefc_tgt_ls_req *rsp;
306 struct lpfc_nvmet_rcv_ctx *ctxp;
307 uint32_t status, result;
309 status = bf_get(lpfc_wcqe_c_status, wcqe);
310 result = wcqe->parameter;
311 ctxp = cmdwqe->context2;
313 if (ctxp->state != LPFC_NVMET_STE_LS_RSP || ctxp->entry_cnt != 2) {
314 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
315 "6410 NVMET LS cmpl state mismatch IO x%x: "
317 ctxp->oxid, ctxp->state, ctxp->entry_cnt);
320 if (!phba->targetport)
323 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
327 atomic_inc(&tgtp->xmt_ls_rsp_error);
328 if (result == IOERR_ABORT_REQUESTED)
329 atomic_inc(&tgtp->xmt_ls_rsp_aborted);
330 if (bf_get(lpfc_wcqe_c_xb, wcqe))
331 atomic_inc(&tgtp->xmt_ls_rsp_xb_set);
333 atomic_inc(&tgtp->xmt_ls_rsp_cmpl);
338 rsp = &ctxp->ctx.ls_req;
340 lpfc_nvmeio_data(phba, "NVMET LS CMPL: xri x%x stat x%x result x%x\n",
341 ctxp->oxid, status, result);
343 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
344 "6038 NVMET LS rsp cmpl: %d %d oxid x%x\n",
345 status, result, ctxp->oxid);
347 lpfc_nlp_put(cmdwqe->context1);
348 cmdwqe->context2 = NULL;
349 cmdwqe->context3 = NULL;
350 lpfc_sli_release_iocbq(phba, cmdwqe);
356 * lpfc_nvmet_ctxbuf_post - Repost a NVMET RQ DMA buffer and clean up context
357 * @phba: HBA buffer is associated with
358 * @ctxp: context to clean up
359 * @mp: Buffer to free
361 * Description: Frees the given DMA buffer in the appropriate way given by
362 * reposting it to its associated RQ so it can be reused.
364 * Notes: Takes phba->hbalock. Can be called with or without other locks held.
369 lpfc_nvmet_ctxbuf_post(struct lpfc_hba *phba, struct lpfc_nvmet_ctxbuf *ctx_buf)
371 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
372 struct lpfc_nvmet_rcv_ctx *ctxp = ctx_buf->context;
373 struct lpfc_nvmet_tgtport *tgtp;
374 struct fc_frame_header *fc_hdr;
375 struct rqb_dmabuf *nvmebuf;
376 struct lpfc_nvmet_ctx_info *infop;
377 uint32_t size, oxid, sid;
381 if (ctxp->state == LPFC_NVMET_STE_FREE) {
382 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
383 "6411 NVMET free, already free IO x%x: %d %d\n",
384 ctxp->oxid, ctxp->state, ctxp->entry_cnt);
387 if (ctxp->rqb_buffer) {
388 spin_lock_irqsave(&ctxp->ctxlock, iflag);
389 nvmebuf = ctxp->rqb_buffer;
390 /* check if freed in another path whilst acquiring lock */
392 ctxp->rqb_buffer = NULL;
393 if (ctxp->flag & LPFC_NVMET_CTX_REUSE_WQ) {
394 ctxp->flag &= ~LPFC_NVMET_CTX_REUSE_WQ;
395 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
396 nvmebuf->hrq->rqbp->rqb_free_buffer(phba,
399 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
401 lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
404 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
407 ctxp->state = LPFC_NVMET_STE_FREE;
409 spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
410 if (phba->sli4_hba.nvmet_io_wait_cnt) {
411 list_remove_head(&phba->sli4_hba.lpfc_nvmet_io_wait_list,
412 nvmebuf, struct rqb_dmabuf,
414 phba->sli4_hba.nvmet_io_wait_cnt--;
415 spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
418 fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
419 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
420 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
421 size = nvmebuf->bytes_recv;
422 sid = sli4_sid_from_fc_hdr(fc_hdr);
424 ctxp = (struct lpfc_nvmet_rcv_ctx *)ctx_buf->context;
431 ctxp->state = LPFC_NVMET_STE_RCV;
434 ctxp->ctxbuf = ctx_buf;
435 ctxp->rqb_buffer = (void *)nvmebuf;
436 spin_lock_init(&ctxp->ctxlock);
438 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
439 /* NOTE: isr time stamp is stale when context is re-assigned*/
440 if (ctxp->ts_isr_cmd) {
441 ctxp->ts_cmd_nvme = 0;
442 ctxp->ts_nvme_data = 0;
443 ctxp->ts_data_wqput = 0;
444 ctxp->ts_isr_data = 0;
445 ctxp->ts_data_nvme = 0;
446 ctxp->ts_nvme_status = 0;
447 ctxp->ts_status_wqput = 0;
448 ctxp->ts_isr_status = 0;
449 ctxp->ts_status_nvme = 0;
452 atomic_inc(&tgtp->rcv_fcp_cmd_in);
454 /* Indicate that a replacement buffer has been posted */
455 spin_lock_irqsave(&ctxp->ctxlock, iflag);
456 ctxp->flag |= LPFC_NVMET_CTX_REUSE_WQ;
457 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
459 if (!queue_work(phba->wq, &ctx_buf->defer_work)) {
460 atomic_inc(&tgtp->rcv_fcp_cmd_drop);
461 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
462 "6181 Unable to queue deferred work "
464 "FCP Drop IO [x%x x%x x%x]\n",
466 atomic_read(&tgtp->rcv_fcp_cmd_in),
467 atomic_read(&tgtp->rcv_fcp_cmd_out),
468 atomic_read(&tgtp->xmt_fcp_release));
470 spin_lock_irqsave(&ctxp->ctxlock, iflag);
471 lpfc_nvmet_defer_release(phba, ctxp);
472 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
473 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid);
477 spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
480 * Use the CPU context list, from the MRQ the IO was received on
481 * (ctxp->idx), to save context structure.
483 spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
484 list_del_init(&ctxp->list);
485 spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
486 cpu = raw_smp_processor_id();
487 infop = lpfc_get_ctx_list(phba, cpu, ctxp->idx);
488 spin_lock_irqsave(&infop->nvmet_ctx_list_lock, iflag);
489 list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list);
490 infop->nvmet_ctx_list_cnt++;
491 spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, iflag);
495 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
497 lpfc_nvmet_ktime(struct lpfc_hba *phba,
498 struct lpfc_nvmet_rcv_ctx *ctxp)
500 uint64_t seg1, seg2, seg3, seg4, seg5;
501 uint64_t seg6, seg7, seg8, seg9, seg10;
504 if (!ctxp->ts_isr_cmd || !ctxp->ts_cmd_nvme ||
505 !ctxp->ts_nvme_data || !ctxp->ts_data_wqput ||
506 !ctxp->ts_isr_data || !ctxp->ts_data_nvme ||
507 !ctxp->ts_nvme_status || !ctxp->ts_status_wqput ||
508 !ctxp->ts_isr_status || !ctxp->ts_status_nvme)
511 if (ctxp->ts_status_nvme < ctxp->ts_isr_cmd)
513 if (ctxp->ts_isr_cmd > ctxp->ts_cmd_nvme)
515 if (ctxp->ts_cmd_nvme > ctxp->ts_nvme_data)
517 if (ctxp->ts_nvme_data > ctxp->ts_data_wqput)
519 if (ctxp->ts_data_wqput > ctxp->ts_isr_data)
521 if (ctxp->ts_isr_data > ctxp->ts_data_nvme)
523 if (ctxp->ts_data_nvme > ctxp->ts_nvme_status)
525 if (ctxp->ts_nvme_status > ctxp->ts_status_wqput)
527 if (ctxp->ts_status_wqput > ctxp->ts_isr_status)
529 if (ctxp->ts_isr_status > ctxp->ts_status_nvme)
532 * Segment 1 - Time from FCP command received by MSI-X ISR
533 * to FCP command is passed to NVME Layer.
534 * Segment 2 - Time from FCP command payload handed
535 * off to NVME Layer to Driver receives a Command op
537 * Segment 3 - Time from Driver receives a Command op
538 * from NVME Layer to Command is put on WQ.
539 * Segment 4 - Time from Driver WQ put is done
540 * to MSI-X ISR for Command cmpl.
541 * Segment 5 - Time from MSI-X ISR for Command cmpl to
542 * Command cmpl is passed to NVME Layer.
543 * Segment 6 - Time from Command cmpl is passed to NVME
544 * Layer to Driver receives a RSP op from NVME Layer.
545 * Segment 7 - Time from Driver receives a RSP op from
546 * NVME Layer to WQ put is done on TRSP FCP Status.
547 * Segment 8 - Time from Driver WQ put is done on TRSP
548 * FCP Status to MSI-X ISR for TRSP cmpl.
549 * Segment 9 - Time from MSI-X ISR for TRSP cmpl to
550 * TRSP cmpl is passed to NVME Layer.
551 * Segment 10 - Time from FCP command received by
552 * MSI-X ISR to command is completed on wire.
553 * (Segments 1 thru 8) for READDATA / WRITEDATA
554 * (Segments 1 thru 4) for READDATA_RSP
556 seg1 = ctxp->ts_cmd_nvme - ctxp->ts_isr_cmd;
559 seg2 = ctxp->ts_nvme_data - ctxp->ts_isr_cmd;
565 seg3 = ctxp->ts_data_wqput - ctxp->ts_isr_cmd;
571 seg4 = ctxp->ts_isr_data - ctxp->ts_isr_cmd;
577 seg5 = ctxp->ts_data_nvme - ctxp->ts_isr_cmd;
584 /* For auto rsp commands seg6 thru seg10 will be 0 */
585 if (ctxp->ts_nvme_status > ctxp->ts_data_nvme) {
586 seg6 = ctxp->ts_nvme_status - ctxp->ts_isr_cmd;
592 seg7 = ctxp->ts_status_wqput - ctxp->ts_isr_cmd;
598 seg8 = ctxp->ts_isr_status - ctxp->ts_isr_cmd;
604 seg9 = ctxp->ts_status_nvme - ctxp->ts_isr_cmd;
610 if (ctxp->ts_isr_status < ctxp->ts_isr_cmd)
612 seg10 = (ctxp->ts_isr_status -
615 if (ctxp->ts_isr_data < ctxp->ts_isr_cmd)
621 seg10 = (ctxp->ts_isr_data - ctxp->ts_isr_cmd);
624 phba->ktime_seg1_total += seg1;
625 if (seg1 < phba->ktime_seg1_min)
626 phba->ktime_seg1_min = seg1;
627 else if (seg1 > phba->ktime_seg1_max)
628 phba->ktime_seg1_max = seg1;
630 phba->ktime_seg2_total += seg2;
631 if (seg2 < phba->ktime_seg2_min)
632 phba->ktime_seg2_min = seg2;
633 else if (seg2 > phba->ktime_seg2_max)
634 phba->ktime_seg2_max = seg2;
636 phba->ktime_seg3_total += seg3;
637 if (seg3 < phba->ktime_seg3_min)
638 phba->ktime_seg3_min = seg3;
639 else if (seg3 > phba->ktime_seg3_max)
640 phba->ktime_seg3_max = seg3;
642 phba->ktime_seg4_total += seg4;
643 if (seg4 < phba->ktime_seg4_min)
644 phba->ktime_seg4_min = seg4;
645 else if (seg4 > phba->ktime_seg4_max)
646 phba->ktime_seg4_max = seg4;
648 phba->ktime_seg5_total += seg5;
649 if (seg5 < phba->ktime_seg5_min)
650 phba->ktime_seg5_min = seg5;
651 else if (seg5 > phba->ktime_seg5_max)
652 phba->ktime_seg5_max = seg5;
654 phba->ktime_data_samples++;
658 phba->ktime_seg6_total += seg6;
659 if (seg6 < phba->ktime_seg6_min)
660 phba->ktime_seg6_min = seg6;
661 else if (seg6 > phba->ktime_seg6_max)
662 phba->ktime_seg6_max = seg6;
664 phba->ktime_seg7_total += seg7;
665 if (seg7 < phba->ktime_seg7_min)
666 phba->ktime_seg7_min = seg7;
667 else if (seg7 > phba->ktime_seg7_max)
668 phba->ktime_seg7_max = seg7;
670 phba->ktime_seg8_total += seg8;
671 if (seg8 < phba->ktime_seg8_min)
672 phba->ktime_seg8_min = seg8;
673 else if (seg8 > phba->ktime_seg8_max)
674 phba->ktime_seg8_max = seg8;
676 phba->ktime_seg9_total += seg9;
677 if (seg9 < phba->ktime_seg9_min)
678 phba->ktime_seg9_min = seg9;
679 else if (seg9 > phba->ktime_seg9_max)
680 phba->ktime_seg9_max = seg9;
682 phba->ktime_seg10_total += seg10;
683 if (seg10 < phba->ktime_seg10_min)
684 phba->ktime_seg10_min = seg10;
685 else if (seg10 > phba->ktime_seg10_max)
686 phba->ktime_seg10_max = seg10;
687 phba->ktime_status_samples++;
692 * lpfc_nvmet_xmt_fcp_op_cmp - Completion handler for FCP Response
693 * @phba: Pointer to HBA context object.
694 * @cmdwqe: Pointer to driver command WQE object.
695 * @wcqe: Pointer to driver response CQE object.
697 * The function is called from SLI ring event handler with no
698 * lock held. This function is the completion handler for NVME FCP commands
699 * The function frees memory resources used for the NVME commands.
702 lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
703 struct lpfc_wcqe_complete *wcqe)
705 struct lpfc_nvmet_tgtport *tgtp;
706 struct nvmefc_tgt_fcp_req *rsp;
707 struct lpfc_nvmet_rcv_ctx *ctxp;
708 uint32_t status, result, op, start_clean, logerr;
709 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
713 ctxp = cmdwqe->context2;
714 ctxp->flag &= ~LPFC_NVMET_IO_INP;
716 rsp = &ctxp->ctx.fcp_req;
719 status = bf_get(lpfc_wcqe_c_status, wcqe);
720 result = wcqe->parameter;
722 if (phba->targetport)
723 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
727 lpfc_nvmeio_data(phba, "NVMET FCP CMPL: xri x%x op x%x status x%x\n",
728 ctxp->oxid, op, status);
731 rsp->fcp_error = NVME_SC_DATA_XFER_ERROR;
732 rsp->transferred_length = 0;
734 atomic_inc(&tgtp->xmt_fcp_rsp_error);
735 if (result == IOERR_ABORT_REQUESTED)
736 atomic_inc(&tgtp->xmt_fcp_rsp_aborted);
739 logerr = LOG_NVME_IOERR;
741 /* pick up SLI4 exhange busy condition */
742 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
743 ctxp->flag |= LPFC_NVMET_XBUSY;
744 logerr |= LOG_NVME_ABTS;
746 atomic_inc(&tgtp->xmt_fcp_rsp_xb_set);
749 ctxp->flag &= ~LPFC_NVMET_XBUSY;
752 lpfc_printf_log(phba, KERN_INFO, logerr,
753 "6315 IO Error Cmpl oxid: x%x xri: x%x %x/%x "
755 ctxp->oxid, ctxp->ctxbuf->sglq->sli4_xritag,
756 status, result, ctxp->flag);
759 rsp->fcp_error = NVME_SC_SUCCESS;
760 if (op == NVMET_FCOP_RSP)
761 rsp->transferred_length = rsp->rsplen;
763 rsp->transferred_length = rsp->transfer_length;
765 atomic_inc(&tgtp->xmt_fcp_rsp_cmpl);
768 if ((op == NVMET_FCOP_READDATA_RSP) ||
769 (op == NVMET_FCOP_RSP)) {
771 ctxp->state = LPFC_NVMET_STE_DONE;
774 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
775 if (ctxp->ts_cmd_nvme) {
776 if (rsp->op == NVMET_FCOP_READDATA_RSP) {
778 cmdwqe->isr_timestamp;
781 ctxp->ts_nvme_status =
783 ctxp->ts_status_wqput =
785 ctxp->ts_isr_status =
787 ctxp->ts_status_nvme =
790 ctxp->ts_isr_status =
791 cmdwqe->isr_timestamp;
792 ctxp->ts_status_nvme =
798 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
799 if (ctxp->ts_cmd_nvme)
800 lpfc_nvmet_ktime(phba, ctxp);
802 /* lpfc_nvmet_xmt_fcp_release() will recycle the context */
805 start_clean = offsetof(struct lpfc_iocbq, iocb_flag);
806 memset(((char *)cmdwqe) + start_clean, 0,
807 (sizeof(struct lpfc_iocbq) - start_clean));
808 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
809 if (ctxp->ts_cmd_nvme) {
810 ctxp->ts_isr_data = cmdwqe->isr_timestamp;
811 ctxp->ts_data_nvme = ktime_get_ns();
816 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
817 if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
818 id = raw_smp_processor_id();
819 if (id < LPFC_CHECK_CPU_CNT) {
821 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
822 "6704 CPU Check cmdcmpl: "
823 "cpu %d expect %d\n",
825 phba->sli4_hba.hdwq[rsp->hwqid].cpucheck_cmpl_io[id]++;
832 lpfc_nvmet_xmt_ls_rsp(struct nvmet_fc_target_port *tgtport,
833 struct nvmefc_tgt_ls_req *rsp)
835 struct lpfc_nvmet_rcv_ctx *ctxp =
836 container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.ls_req);
837 struct lpfc_hba *phba = ctxp->phba;
838 struct hbq_dmabuf *nvmebuf =
839 (struct hbq_dmabuf *)ctxp->rqb_buffer;
840 struct lpfc_iocbq *nvmewqeq;
841 struct lpfc_nvmet_tgtport *nvmep = tgtport->private;
842 struct lpfc_dmabuf dmabuf;
843 struct ulp_bde64 bpl;
846 if (phba->pport->load_flag & FC_UNLOADING)
849 if (phba->pport->load_flag & FC_UNLOADING)
852 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
853 "6023 NVMET LS rsp oxid x%x\n", ctxp->oxid);
855 if ((ctxp->state != LPFC_NVMET_STE_LS_RCV) ||
856 (ctxp->entry_cnt != 1)) {
857 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
858 "6412 NVMET LS rsp state mismatch "
860 ctxp->oxid, ctxp->state, ctxp->entry_cnt);
862 ctxp->state = LPFC_NVMET_STE_LS_RSP;
865 nvmewqeq = lpfc_nvmet_prep_ls_wqe(phba, ctxp, rsp->rspdma,
867 if (nvmewqeq == NULL) {
868 atomic_inc(&nvmep->xmt_ls_drop);
869 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
870 "6150 LS Drop IO x%x: Prep\n",
872 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
873 atomic_inc(&nvmep->xmt_ls_abort);
874 lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp,
875 ctxp->sid, ctxp->oxid);
879 /* Save numBdes for bpl2sgl */
881 nvmewqeq->hba_wqidx = 0;
882 nvmewqeq->context3 = &dmabuf;
884 bpl.addrLow = nvmewqeq->wqe.xmit_sequence.bde.addrLow;
885 bpl.addrHigh = nvmewqeq->wqe.xmit_sequence.bde.addrHigh;
886 bpl.tus.f.bdeSize = rsp->rsplen;
887 bpl.tus.f.bdeFlags = 0;
888 bpl.tus.w = le32_to_cpu(bpl.tus.w);
890 nvmewqeq->wqe_cmpl = lpfc_nvmet_xmt_ls_rsp_cmp;
891 nvmewqeq->iocb_cmpl = NULL;
892 nvmewqeq->context2 = ctxp;
894 lpfc_nvmeio_data(phba, "NVMET LS RESP: xri x%x wqidx x%x len x%x\n",
895 ctxp->oxid, nvmewqeq->hba_wqidx, rsp->rsplen);
897 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, nvmewqeq);
898 if (rc == WQE_SUCCESS) {
900 * Okay to repost buffer here, but wait till cmpl
901 * before freeing ctxp and iocbq.
903 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
904 atomic_inc(&nvmep->xmt_ls_rsp);
907 /* Give back resources */
908 atomic_inc(&nvmep->xmt_ls_drop);
909 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
910 "6151 LS Drop IO x%x: Issue %d\n",
913 lpfc_nlp_put(nvmewqeq->context1);
915 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
916 atomic_inc(&nvmep->xmt_ls_abort);
917 lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp, ctxp->sid, ctxp->oxid);
922 lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport,
923 struct nvmefc_tgt_fcp_req *rsp)
925 struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
926 struct lpfc_nvmet_rcv_ctx *ctxp =
927 container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
928 struct lpfc_hba *phba = ctxp->phba;
929 struct lpfc_queue *wq;
930 struct lpfc_iocbq *nvmewqeq;
931 struct lpfc_sli_ring *pring;
932 unsigned long iflags;
935 if (phba->pport->load_flag & FC_UNLOADING) {
940 if (phba->pport->load_flag & FC_UNLOADING) {
945 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
946 if (ctxp->ts_cmd_nvme) {
947 if (rsp->op == NVMET_FCOP_RSP)
948 ctxp->ts_nvme_status = ktime_get_ns();
950 ctxp->ts_nvme_data = ktime_get_ns();
953 /* Setup the hdw queue if not already set */
955 ctxp->hdwq = &phba->sli4_hba.hdwq[rsp->hwqid];
957 if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
958 int id = raw_smp_processor_id();
959 if (id < LPFC_CHECK_CPU_CNT) {
960 if (rsp->hwqid != id)
961 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
962 "6705 CPU Check OP: "
963 "cpu %d expect %d\n",
965 phba->sli4_hba.hdwq[rsp->hwqid].cpucheck_xmt_io[id]++;
967 ctxp->cpu = id; /* Setup cpu for cmpl check */
972 if ((ctxp->flag & LPFC_NVMET_ABTS_RCV) ||
973 (ctxp->state == LPFC_NVMET_STE_ABORT)) {
974 atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
975 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
976 "6102 IO oxid x%x aborted\n",
982 nvmewqeq = lpfc_nvmet_prep_fcp_wqe(phba, ctxp);
983 if (nvmewqeq == NULL) {
984 atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
985 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
986 "6152 FCP Drop IO x%x: Prep\n",
992 nvmewqeq->wqe_cmpl = lpfc_nvmet_xmt_fcp_op_cmp;
993 nvmewqeq->iocb_cmpl = NULL;
994 nvmewqeq->context2 = ctxp;
995 nvmewqeq->iocb_flag |= LPFC_IO_NVMET;
996 ctxp->wqeq->hba_wqidx = rsp->hwqid;
998 lpfc_nvmeio_data(phba, "NVMET FCP CMND: xri x%x op x%x len x%x\n",
999 ctxp->oxid, rsp->op, rsp->rsplen);
1001 ctxp->flag |= LPFC_NVMET_IO_INP;
1002 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, nvmewqeq);
1003 if (rc == WQE_SUCCESS) {
1004 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1005 if (!ctxp->ts_cmd_nvme)
1007 if (rsp->op == NVMET_FCOP_RSP)
1008 ctxp->ts_status_wqput = ktime_get_ns();
1010 ctxp->ts_data_wqput = ktime_get_ns();
1017 * WQ was full, so queue nvmewqeq to be sent after
1020 ctxp->flag |= LPFC_NVMET_DEFER_WQFULL;
1021 wq = ctxp->hdwq->io_wq;
1023 spin_lock_irqsave(&pring->ring_lock, iflags);
1024 list_add_tail(&nvmewqeq->list, &wq->wqfull_list);
1025 wq->q_flag |= HBA_NVMET_WQFULL;
1026 spin_unlock_irqrestore(&pring->ring_lock, iflags);
1027 atomic_inc(&lpfc_nvmep->defer_wqfull);
1031 /* Give back resources */
1032 atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
1033 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
1034 "6153 FCP Drop IO x%x: Issue: %d\n",
1037 ctxp->wqeq->hba_wqidx = 0;
1038 nvmewqeq->context2 = NULL;
1039 nvmewqeq->context3 = NULL;
1046 lpfc_nvmet_targetport_delete(struct nvmet_fc_target_port *targetport)
1048 struct lpfc_nvmet_tgtport *tport = targetport->private;
1050 /* release any threads waiting for the unreg to complete */
1051 if (tport->phba->targetport)
1052 complete(tport->tport_unreg_cmp);
1056 lpfc_nvmet_xmt_fcp_abort(struct nvmet_fc_target_port *tgtport,
1057 struct nvmefc_tgt_fcp_req *req)
1059 struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
1060 struct lpfc_nvmet_rcv_ctx *ctxp =
1061 container_of(req, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
1062 struct lpfc_hba *phba = ctxp->phba;
1063 struct lpfc_queue *wq;
1064 unsigned long flags;
1066 if (phba->pport->load_flag & FC_UNLOADING)
1069 if (phba->pport->load_flag & FC_UNLOADING)
1073 ctxp->hdwq = &phba->sli4_hba.hdwq[0];
1075 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1076 "6103 NVMET Abort op: oxid x%x flg x%x ste %d\n",
1077 ctxp->oxid, ctxp->flag, ctxp->state);
1079 lpfc_nvmeio_data(phba, "NVMET FCP ABRT: xri x%x flg x%x ste x%x\n",
1080 ctxp->oxid, ctxp->flag, ctxp->state);
1082 atomic_inc(&lpfc_nvmep->xmt_fcp_abort);
1084 spin_lock_irqsave(&ctxp->ctxlock, flags);
1086 /* Since iaab/iaar are NOT set, we need to check
1087 * if the firmware is in process of aborting IO
1089 if (ctxp->flag & (LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP)) {
1090 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
1093 ctxp->flag |= LPFC_NVMET_ABORT_OP;
1095 if (ctxp->flag & LPFC_NVMET_DEFER_WQFULL) {
1096 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
1097 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
1099 wq = ctxp->hdwq->io_wq;
1100 lpfc_nvmet_wqfull_flush(phba, wq, ctxp);
1103 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
1105 /* An state of LPFC_NVMET_STE_RCV means we have just received
1106 * the NVME command and have not started processing it.
1107 * (by issuing any IO WQEs on this exchange yet)
1109 if (ctxp->state == LPFC_NVMET_STE_RCV)
1110 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
1113 lpfc_nvmet_sol_fcp_issue_abort(phba, ctxp, ctxp->sid,
1118 lpfc_nvmet_xmt_fcp_release(struct nvmet_fc_target_port *tgtport,
1119 struct nvmefc_tgt_fcp_req *rsp)
1121 struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
1122 struct lpfc_nvmet_rcv_ctx *ctxp =
1123 container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
1124 struct lpfc_hba *phba = ctxp->phba;
1125 unsigned long flags;
1126 bool aborting = false;
1128 spin_lock_irqsave(&ctxp->ctxlock, flags);
1129 if (ctxp->flag & LPFC_NVMET_XBUSY)
1130 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
1131 "6027 NVMET release with XBUSY flag x%x"
1133 ctxp->flag, ctxp->oxid);
1134 else if (ctxp->state != LPFC_NVMET_STE_DONE &&
1135 ctxp->state != LPFC_NVMET_STE_ABORT)
1136 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
1137 "6413 NVMET release bad state %d %d oxid x%x\n",
1138 ctxp->state, ctxp->entry_cnt, ctxp->oxid);
1140 if ((ctxp->flag & LPFC_NVMET_ABORT_OP) ||
1141 (ctxp->flag & LPFC_NVMET_XBUSY)) {
1143 /* let the abort path do the real release */
1144 lpfc_nvmet_defer_release(phba, ctxp);
1146 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
1148 lpfc_nvmeio_data(phba, "NVMET FCP FREE: xri x%x ste %d abt %d\n", ctxp->oxid,
1149 ctxp->state, aborting);
1151 atomic_inc(&lpfc_nvmep->xmt_fcp_release);
1152 ctxp->flag &= ~LPFC_NVMET_TNOTIFY;
1157 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1161 lpfc_nvmet_defer_rcv(struct nvmet_fc_target_port *tgtport,
1162 struct nvmefc_tgt_fcp_req *rsp)
1164 struct lpfc_nvmet_tgtport *tgtp;
1165 struct lpfc_nvmet_rcv_ctx *ctxp =
1166 container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
1167 struct rqb_dmabuf *nvmebuf = ctxp->rqb_buffer;
1168 struct lpfc_hba *phba = ctxp->phba;
1169 unsigned long iflag;
1172 lpfc_nvmeio_data(phba, "NVMET DEFERRCV: xri x%x sz %d CPU %02x\n",
1173 ctxp->oxid, ctxp->size, raw_smp_processor_id());
1176 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
1177 "6425 Defer rcv: no buffer oxid x%x: "
1179 ctxp->oxid, ctxp->flag, ctxp->state);
1183 tgtp = phba->targetport->private;
1185 atomic_inc(&tgtp->rcv_fcp_cmd_defer);
1187 /* Free the nvmebuf since a new buffer already replaced it */
1188 nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
1189 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1190 ctxp->rqb_buffer = NULL;
1191 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1195 lpfc_nvmet_discovery_event(struct nvmet_fc_target_port *tgtport)
1197 struct lpfc_nvmet_tgtport *tgtp;
1198 struct lpfc_hba *phba;
1201 tgtp = tgtport->private;
1204 rc = lpfc_issue_els_rscn(phba->pport, 0);
1205 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
1206 "6420 NVMET subsystem change: Notification %s\n",
1207 (rc) ? "Failed" : "Sent");
1210 static struct nvmet_fc_target_template lpfc_tgttemplate = {
1211 .targetport_delete = lpfc_nvmet_targetport_delete,
1212 .xmt_ls_rsp = lpfc_nvmet_xmt_ls_rsp,
1213 .fcp_op = lpfc_nvmet_xmt_fcp_op,
1214 .fcp_abort = lpfc_nvmet_xmt_fcp_abort,
1215 .fcp_req_release = lpfc_nvmet_xmt_fcp_release,
1216 .defer_rcv = lpfc_nvmet_defer_rcv,
1217 .discovery_event = lpfc_nvmet_discovery_event,
1220 .max_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,
1221 .max_dif_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,
1222 .dma_boundary = 0xFFFFFFFF,
1224 /* optional features */
1225 .target_features = 0,
1226 /* sizes of additional private data for data structures */
1227 .target_priv_sz = sizeof(struct lpfc_nvmet_tgtport),
1231 __lpfc_nvmet_clean_io_for_cpu(struct lpfc_hba *phba,
1232 struct lpfc_nvmet_ctx_info *infop)
1234 struct lpfc_nvmet_ctxbuf *ctx_buf, *next_ctx_buf;
1235 unsigned long flags;
1237 spin_lock_irqsave(&infop->nvmet_ctx_list_lock, flags);
1238 list_for_each_entry_safe(ctx_buf, next_ctx_buf,
1239 &infop->nvmet_ctx_list, list) {
1240 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1241 list_del_init(&ctx_buf->list);
1242 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1244 __lpfc_clear_active_sglq(phba, ctx_buf->sglq->sli4_lxritag);
1245 ctx_buf->sglq->state = SGL_FREED;
1246 ctx_buf->sglq->ndlp = NULL;
1248 spin_lock(&phba->sli4_hba.sgl_list_lock);
1249 list_add_tail(&ctx_buf->sglq->list,
1250 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1251 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1253 lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
1254 kfree(ctx_buf->context);
1256 spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, flags);
1260 lpfc_nvmet_cleanup_io_context(struct lpfc_hba *phba)
1262 struct lpfc_nvmet_ctx_info *infop;
1265 /* The first context list, MRQ 0 CPU 0 */
1266 infop = phba->sli4_hba.nvmet_ctx_info;
1270 /* Cycle the the entire CPU context list for every MRQ */
1271 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
1272 for_each_present_cpu(j) {
1273 infop = lpfc_get_ctx_list(phba, j, i);
1274 __lpfc_nvmet_clean_io_for_cpu(phba, infop);
1277 kfree(phba->sli4_hba.nvmet_ctx_info);
1278 phba->sli4_hba.nvmet_ctx_info = NULL;
1282 lpfc_nvmet_setup_io_context(struct lpfc_hba *phba)
1284 struct lpfc_nvmet_ctxbuf *ctx_buf;
1285 struct lpfc_iocbq *nvmewqe;
1286 union lpfc_wqe128 *wqe;
1287 struct lpfc_nvmet_ctx_info *last_infop;
1288 struct lpfc_nvmet_ctx_info *infop;
1291 lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
1292 "6403 Allocate NVMET resources for %d XRIs\n",
1293 phba->sli4_hba.nvmet_xri_cnt);
1295 phba->sli4_hba.nvmet_ctx_info = kcalloc(
1296 phba->sli4_hba.num_possible_cpu * phba->cfg_nvmet_mrq,
1297 sizeof(struct lpfc_nvmet_ctx_info), GFP_KERNEL);
1298 if (!phba->sli4_hba.nvmet_ctx_info) {
1299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1300 "6419 Failed allocate memory for "
1301 "nvmet context lists\n");
1306 * Assuming X CPUs in the system, and Y MRQs, allocate some
1307 * lpfc_nvmet_ctx_info structures as follows:
1309 * cpu0/mrq0 cpu1/mrq0 ... cpuX/mrq0
1310 * cpu0/mrq1 cpu1/mrq1 ... cpuX/mrq1
1312 * cpuX/mrqY cpuX/mrqY ... cpuX/mrqY
1314 * Each line represents a MRQ "silo" containing an entry for
1317 * MRQ X is initially assumed to be associated with CPU X, thus
1318 * contexts are initially distributed across all MRQs using
1319 * the MRQ index (N) as follows cpuN/mrqN. When contexts are
1320 * freed, the are freed to the MRQ silo based on the CPU number
1321 * of the IO completion. Thus a context that was allocated for MRQ A
1322 * whose IO completed on CPU B will be freed to cpuB/mrqA.
1324 for_each_possible_cpu(i) {
1325 for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
1326 infop = lpfc_get_ctx_list(phba, i, j);
1327 INIT_LIST_HEAD(&infop->nvmet_ctx_list);
1328 spin_lock_init(&infop->nvmet_ctx_list_lock);
1329 infop->nvmet_ctx_list_cnt = 0;
1334 * Setup the next CPU context info ptr for each MRQ.
1335 * MRQ 0 will cycle thru CPUs 0 - X separately from
1336 * MRQ 1 cycling thru CPUs 0 - X, and so on.
1338 for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
1339 last_infop = lpfc_get_ctx_list(phba,
1340 cpumask_first(cpu_present_mask),
1342 for (i = phba->sli4_hba.num_possible_cpu - 1; i >= 0; i--) {
1343 infop = lpfc_get_ctx_list(phba, i, j);
1344 infop->nvmet_ctx_next_cpu = last_infop;
1349 /* For all nvmet xris, allocate resources needed to process a
1350 * received command on a per xri basis.
1353 cpu = cpumask_first(cpu_present_mask);
1354 for (i = 0; i < phba->sli4_hba.nvmet_xri_cnt; i++) {
1355 ctx_buf = kzalloc(sizeof(*ctx_buf), GFP_KERNEL);
1357 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
1358 "6404 Ran out of memory for NVMET\n");
1362 ctx_buf->context = kzalloc(sizeof(*ctx_buf->context),
1364 if (!ctx_buf->context) {
1366 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
1367 "6405 Ran out of NVMET "
1368 "context memory\n");
1371 ctx_buf->context->ctxbuf = ctx_buf;
1372 ctx_buf->context->state = LPFC_NVMET_STE_FREE;
1374 ctx_buf->iocbq = lpfc_sli_get_iocbq(phba);
1375 if (!ctx_buf->iocbq) {
1376 kfree(ctx_buf->context);
1378 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
1379 "6406 Ran out of NVMET iocb/WQEs\n");
1382 ctx_buf->iocbq->iocb_flag = LPFC_IO_NVMET;
1383 nvmewqe = ctx_buf->iocbq;
1384 wqe = &nvmewqe->wqe;
1386 /* Initialize WQE */
1387 memset(wqe, 0, sizeof(union lpfc_wqe));
1389 ctx_buf->iocbq->context1 = NULL;
1390 spin_lock(&phba->sli4_hba.sgl_list_lock);
1391 ctx_buf->sglq = __lpfc_sli_get_nvmet_sglq(phba, ctx_buf->iocbq);
1392 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1393 if (!ctx_buf->sglq) {
1394 lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
1395 kfree(ctx_buf->context);
1397 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
1398 "6407 Ran out of NVMET XRIs\n");
1401 INIT_WORK(&ctx_buf->defer_work, lpfc_nvmet_fcp_rqst_defer_work);
1404 * Add ctx to MRQidx context list. Our initial assumption
1405 * is MRQidx will be associated with CPUidx. This association
1406 * can change on the fly.
1408 infop = lpfc_get_ctx_list(phba, cpu, idx);
1409 spin_lock(&infop->nvmet_ctx_list_lock);
1410 list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list);
1411 infop->nvmet_ctx_list_cnt++;
1412 spin_unlock(&infop->nvmet_ctx_list_lock);
1414 /* Spread ctx structures evenly across all MRQs */
1416 if (idx >= phba->cfg_nvmet_mrq) {
1418 cpu = cpumask_first(cpu_present_mask);
1421 cpu = cpumask_next(cpu, cpu_present_mask);
1422 if (cpu == nr_cpu_ids)
1423 cpu = cpumask_first(cpu_present_mask);
1427 for_each_present_cpu(i) {
1428 for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
1429 infop = lpfc_get_ctx_list(phba, i, j);
1430 lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
1431 "6408 TOTAL NVMET ctx for CPU %d "
1432 "MRQ %d: cnt %d nextcpu x%px\n",
1433 i, j, infop->nvmet_ctx_list_cnt,
1434 infop->nvmet_ctx_next_cpu);
1441 lpfc_nvmet_create_targetport(struct lpfc_hba *phba)
1443 struct lpfc_vport *vport = phba->pport;
1444 struct lpfc_nvmet_tgtport *tgtp;
1445 struct nvmet_fc_port_info pinfo;
1448 if (phba->targetport)
1451 error = lpfc_nvmet_setup_io_context(phba);
1455 memset(&pinfo, 0, sizeof(struct nvmet_fc_port_info));
1456 pinfo.node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
1457 pinfo.port_name = wwn_to_u64(vport->fc_portname.u.wwn);
1458 pinfo.port_id = vport->fc_myDID;
1460 /* We need to tell the transport layer + 1 because it takes page
1461 * alignment into account. When space for the SGL is allocated we
1462 * allocate + 3, one for cmd, one for rsp and one for this alignment
1464 lpfc_tgttemplate.max_sgl_segments = phba->cfg_nvme_seg_cnt + 1;
1465 lpfc_tgttemplate.max_hw_queues = phba->cfg_hdw_queue;
1466 lpfc_tgttemplate.target_features = NVMET_FCTGTFEAT_READDATA_RSP;
1468 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
1469 error = nvmet_fc_register_targetport(&pinfo, &lpfc_tgttemplate,
1476 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
1477 "6025 Cannot register NVME targetport x%x: "
1478 "portnm %llx nodenm %llx segs %d qs %d\n",
1480 pinfo.port_name, pinfo.node_name,
1481 lpfc_tgttemplate.max_sgl_segments,
1482 lpfc_tgttemplate.max_hw_queues);
1483 phba->targetport = NULL;
1484 phba->nvmet_support = 0;
1486 lpfc_nvmet_cleanup_io_context(phba);
1489 tgtp = (struct lpfc_nvmet_tgtport *)
1490 phba->targetport->private;
1493 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
1494 "6026 Registered NVME "
1495 "targetport: x%px, private x%px "
1496 "portnm %llx nodenm %llx segs %d qs %d\n",
1497 phba->targetport, tgtp,
1498 pinfo.port_name, pinfo.node_name,
1499 lpfc_tgttemplate.max_sgl_segments,
1500 lpfc_tgttemplate.max_hw_queues);
1502 atomic_set(&tgtp->rcv_ls_req_in, 0);
1503 atomic_set(&tgtp->rcv_ls_req_out, 0);
1504 atomic_set(&tgtp->rcv_ls_req_drop, 0);
1505 atomic_set(&tgtp->xmt_ls_abort, 0);
1506 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0);
1507 atomic_set(&tgtp->xmt_ls_rsp, 0);
1508 atomic_set(&tgtp->xmt_ls_drop, 0);
1509 atomic_set(&tgtp->xmt_ls_rsp_error, 0);
1510 atomic_set(&tgtp->xmt_ls_rsp_xb_set, 0);
1511 atomic_set(&tgtp->xmt_ls_rsp_aborted, 0);
1512 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
1513 atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
1514 atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
1515 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0);
1516 atomic_set(&tgtp->xmt_fcp_drop, 0);
1517 atomic_set(&tgtp->xmt_fcp_read_rsp, 0);
1518 atomic_set(&tgtp->xmt_fcp_read, 0);
1519 atomic_set(&tgtp->xmt_fcp_write, 0);
1520 atomic_set(&tgtp->xmt_fcp_rsp, 0);
1521 atomic_set(&tgtp->xmt_fcp_release, 0);
1522 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
1523 atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
1524 atomic_set(&tgtp->xmt_fcp_rsp_xb_set, 0);
1525 atomic_set(&tgtp->xmt_fcp_rsp_aborted, 0);
1526 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
1527 atomic_set(&tgtp->xmt_fcp_xri_abort_cqe, 0);
1528 atomic_set(&tgtp->xmt_fcp_abort, 0);
1529 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0);
1530 atomic_set(&tgtp->xmt_abort_unsol, 0);
1531 atomic_set(&tgtp->xmt_abort_sol, 0);
1532 atomic_set(&tgtp->xmt_abort_rsp, 0);
1533 atomic_set(&tgtp->xmt_abort_rsp_error, 0);
1534 atomic_set(&tgtp->defer_ctx, 0);
1535 atomic_set(&tgtp->defer_fod, 0);
1536 atomic_set(&tgtp->defer_wqfull, 0);
1542 lpfc_nvmet_update_targetport(struct lpfc_hba *phba)
1544 struct lpfc_vport *vport = phba->pport;
1546 if (!phba->targetport)
1549 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME,
1550 "6007 Update NVMET port x%px did x%x\n",
1551 phba->targetport, vport->fc_myDID);
1553 phba->targetport->port_id = vport->fc_myDID;
1558 * lpfc_sli4_nvmet_xri_aborted - Fast-path process of nvmet xri abort
1559 * @phba: pointer to lpfc hba data structure.
1560 * @axri: pointer to the nvmet xri abort wcqe structure.
1562 * This routine is invoked by the worker thread to process a SLI4 fast-path
1563 * NVMET aborted xri.
1566 lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba,
1567 struct sli4_wcqe_xri_aborted *axri)
1569 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
1570 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
1571 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
1572 struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp;
1573 struct lpfc_nvmet_tgtport *tgtp;
1574 struct nvmefc_tgt_fcp_req *req = NULL;
1575 struct lpfc_nodelist *ndlp;
1576 unsigned long iflag = 0;
1578 bool released = false;
1580 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1581 "6317 XB aborted xri x%x rxid x%x\n", xri, rxid);
1583 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
1586 if (phba->targetport) {
1587 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
1588 atomic_inc(&tgtp->xmt_fcp_xri_abort_cqe);
1591 spin_lock_irqsave(&phba->hbalock, iflag);
1592 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1593 list_for_each_entry_safe(ctxp, next_ctxp,
1594 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1596 if (ctxp->ctxbuf->sglq->sli4_xritag != xri)
1599 spin_lock(&ctxp->ctxlock);
1600 /* Check if we already received a free context call
1601 * and we have completed processing an abort situation.
1603 if (ctxp->flag & LPFC_NVMET_CTX_RLS &&
1604 !(ctxp->flag & LPFC_NVMET_ABORT_OP)) {
1605 list_del_init(&ctxp->list);
1608 ctxp->flag &= ~LPFC_NVMET_XBUSY;
1609 spin_unlock(&ctxp->ctxlock);
1610 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1612 rrq_empty = list_empty(&phba->active_rrq_list);
1613 spin_unlock_irqrestore(&phba->hbalock, iflag);
1614 ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
1615 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
1616 (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE ||
1617 ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
1618 lpfc_set_rrq_active(phba, ndlp,
1619 ctxp->ctxbuf->sglq->sli4_lxritag,
1621 lpfc_sli4_abts_err_handler(phba, ndlp, axri);
1624 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1625 "6318 XB aborted oxid x%x flg x%x (%x)\n",
1626 ctxp->oxid, ctxp->flag, released);
1628 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1631 lpfc_worker_wake_up(phba);
1634 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1635 spin_unlock_irqrestore(&phba->hbalock, iflag);
1637 ctxp = lpfc_nvmet_get_ctx_for_xri(phba, xri);
1640 * Abort already done by FW, so BA_ACC sent.
1641 * However, the transport may be unaware.
1643 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1644 "6323 NVMET Rcv ABTS xri x%x ctxp state x%x "
1645 "flag x%x oxid x%x rxid x%x\n",
1646 xri, ctxp->state, ctxp->flag, ctxp->oxid,
1649 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1650 ctxp->flag |= LPFC_NVMET_ABTS_RCV;
1651 ctxp->state = LPFC_NVMET_STE_ABORT;
1652 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1654 lpfc_nvmeio_data(phba,
1655 "NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
1656 xri, raw_smp_processor_id(), 0);
1658 req = &ctxp->ctx.fcp_req;
1660 nvmet_fc_rcv_fcp_abort(phba->targetport, req);
1666 lpfc_nvmet_rcv_unsol_abort(struct lpfc_vport *vport,
1667 struct fc_frame_header *fc_hdr)
1669 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
1670 struct lpfc_hba *phba = vport->phba;
1671 struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp;
1672 struct nvmefc_tgt_fcp_req *rsp;
1675 unsigned long iflag = 0;
1677 sid = sli4_sid_from_fc_hdr(fc_hdr);
1678 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
1680 spin_lock_irqsave(&phba->hbalock, iflag);
1681 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1682 list_for_each_entry_safe(ctxp, next_ctxp,
1683 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1685 if (ctxp->oxid != oxid || ctxp->sid != sid)
1688 xri = ctxp->ctxbuf->sglq->sli4_xritag;
1690 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1691 spin_unlock_irqrestore(&phba->hbalock, iflag);
1693 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1694 ctxp->flag |= LPFC_NVMET_ABTS_RCV;
1695 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1697 lpfc_nvmeio_data(phba,
1698 "NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
1699 xri, raw_smp_processor_id(), 0);
1701 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1702 "6319 NVMET Rcv ABTS:acc xri x%x\n", xri);
1704 rsp = &ctxp->ctx.fcp_req;
1705 nvmet_fc_rcv_fcp_abort(phba->targetport, rsp);
1707 /* Respond with BA_ACC accordingly */
1708 lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
1711 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1712 spin_unlock_irqrestore(&phba->hbalock, iflag);
1714 /* check the wait list */
1715 if (phba->sli4_hba.nvmet_io_wait_cnt) {
1716 struct rqb_dmabuf *nvmebuf;
1717 struct fc_frame_header *fc_hdr_tmp;
1722 spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
1724 /* match by oxid and s_id */
1725 list_for_each_entry(nvmebuf,
1726 &phba->sli4_hba.lpfc_nvmet_io_wait_list,
1728 fc_hdr_tmp = (struct fc_frame_header *)
1729 (nvmebuf->hbuf.virt);
1730 oxid_tmp = be16_to_cpu(fc_hdr_tmp->fh_ox_id);
1731 sid_tmp = sli4_sid_from_fc_hdr(fc_hdr_tmp);
1732 if (oxid_tmp != oxid || sid_tmp != sid)
1735 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1736 "6321 NVMET Rcv ABTS oxid x%x from x%x "
1737 "is waiting for a ctxp\n",
1740 list_del_init(&nvmebuf->hbuf.list);
1741 phba->sli4_hba.nvmet_io_wait_cnt--;
1745 spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
1748 /* free buffer since already posted a new DMA buffer to RQ */
1750 nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
1751 /* Respond with BA_ACC accordingly */
1752 lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
1757 /* check active list */
1758 ctxp = lpfc_nvmet_get_ctx_for_oxid(phba, oxid, sid);
1760 xri = ctxp->ctxbuf->sglq->sli4_xritag;
1762 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1763 ctxp->flag |= (LPFC_NVMET_ABTS_RCV | LPFC_NVMET_ABORT_OP);
1764 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1766 lpfc_nvmeio_data(phba,
1767 "NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
1768 xri, raw_smp_processor_id(), 0);
1770 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1771 "6322 NVMET Rcv ABTS:acc oxid x%x xri x%x "
1772 "flag x%x state x%x\n",
1773 ctxp->oxid, xri, ctxp->flag, ctxp->state);
1775 if (ctxp->flag & LPFC_NVMET_TNOTIFY) {
1776 /* Notify the transport */
1777 nvmet_fc_rcv_fcp_abort(phba->targetport,
1778 &ctxp->ctx.fcp_req);
1780 cancel_work_sync(&ctxp->ctxbuf->defer_work);
1781 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1782 lpfc_nvmet_defer_release(phba, ctxp);
1783 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1785 lpfc_nvmet_sol_fcp_issue_abort(phba, ctxp, ctxp->sid,
1788 lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
1792 lpfc_nvmeio_data(phba, "NVMET ABTS RCV: oxid x%x CPU %02x rjt %d\n",
1793 oxid, raw_smp_processor_id(), 1);
1795 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1796 "6320 NVMET Rcv ABTS:rjt oxid x%x\n", oxid);
1798 /* Respond with BA_RJT accordingly */
1799 lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 0);
1805 lpfc_nvmet_wqfull_flush(struct lpfc_hba *phba, struct lpfc_queue *wq,
1806 struct lpfc_nvmet_rcv_ctx *ctxp)
1808 struct lpfc_sli_ring *pring;
1809 struct lpfc_iocbq *nvmewqeq;
1810 struct lpfc_iocbq *next_nvmewqeq;
1811 unsigned long iflags;
1812 struct lpfc_wcqe_complete wcqe;
1813 struct lpfc_wcqe_complete *wcqep;
1818 /* Fake an ABORT error code back to cmpl routine */
1819 memset(wcqep, 0, sizeof(struct lpfc_wcqe_complete));
1820 bf_set(lpfc_wcqe_c_status, wcqep, IOSTAT_LOCAL_REJECT);
1821 wcqep->parameter = IOERR_ABORT_REQUESTED;
1823 spin_lock_irqsave(&pring->ring_lock, iflags);
1824 list_for_each_entry_safe(nvmewqeq, next_nvmewqeq,
1825 &wq->wqfull_list, list) {
1827 /* Checking for a specific IO to flush */
1828 if (nvmewqeq->context2 == ctxp) {
1829 list_del(&nvmewqeq->list);
1830 spin_unlock_irqrestore(&pring->ring_lock,
1832 lpfc_nvmet_xmt_fcp_op_cmp(phba, nvmewqeq,
1839 list_del(&nvmewqeq->list);
1840 spin_unlock_irqrestore(&pring->ring_lock, iflags);
1841 lpfc_nvmet_xmt_fcp_op_cmp(phba, nvmewqeq, wcqep);
1842 spin_lock_irqsave(&pring->ring_lock, iflags);
1846 wq->q_flag &= ~HBA_NVMET_WQFULL;
1847 spin_unlock_irqrestore(&pring->ring_lock, iflags);
1851 lpfc_nvmet_wqfull_process(struct lpfc_hba *phba,
1852 struct lpfc_queue *wq)
1854 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
1855 struct lpfc_sli_ring *pring;
1856 struct lpfc_iocbq *nvmewqeq;
1857 struct lpfc_nvmet_rcv_ctx *ctxp;
1858 unsigned long iflags;
1862 * Some WQE slots are available, so try to re-issue anything
1863 * on the WQ wqfull_list.
1866 spin_lock_irqsave(&pring->ring_lock, iflags);
1867 while (!list_empty(&wq->wqfull_list)) {
1868 list_remove_head(&wq->wqfull_list, nvmewqeq, struct lpfc_iocbq,
1870 spin_unlock_irqrestore(&pring->ring_lock, iflags);
1871 ctxp = (struct lpfc_nvmet_rcv_ctx *)nvmewqeq->context2;
1872 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, nvmewqeq);
1873 spin_lock_irqsave(&pring->ring_lock, iflags);
1875 /* WQ was full again, so put it back on the list */
1876 list_add(&nvmewqeq->list, &wq->wqfull_list);
1877 spin_unlock_irqrestore(&pring->ring_lock, iflags);
1880 if (rc == WQE_SUCCESS) {
1881 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1882 if (ctxp->ts_cmd_nvme) {
1883 if (ctxp->ctx.fcp_req.op == NVMET_FCOP_RSP)
1884 ctxp->ts_status_wqput = ktime_get_ns();
1886 ctxp->ts_data_wqput = ktime_get_ns();
1893 wq->q_flag &= ~HBA_NVMET_WQFULL;
1894 spin_unlock_irqrestore(&pring->ring_lock, iflags);
1900 lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba)
1902 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
1903 struct lpfc_nvmet_tgtport *tgtp;
1904 struct lpfc_queue *wq;
1906 DECLARE_COMPLETION_ONSTACK(tport_unreg_cmp);
1908 if (phba->nvmet_support == 0)
1910 if (phba->targetport) {
1911 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
1912 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
1913 wq = phba->sli4_hba.hdwq[qidx].io_wq;
1914 lpfc_nvmet_wqfull_flush(phba, wq, NULL);
1916 tgtp->tport_unreg_cmp = &tport_unreg_cmp;
1917 nvmet_fc_unregister_targetport(phba->targetport);
1918 if (!wait_for_completion_timeout(tgtp->tport_unreg_cmp,
1919 msecs_to_jiffies(LPFC_NVMET_WAIT_TMO)))
1920 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
1921 "6179 Unreg targetport x%px timeout "
1922 "reached.\n", phba->targetport);
1923 lpfc_nvmet_cleanup_io_context(phba);
1925 phba->targetport = NULL;
1930 * lpfc_nvmet_unsol_ls_buffer - Process an unsolicited event data buffer
1931 * @phba: pointer to lpfc hba data structure.
1932 * @pring: pointer to a SLI ring.
1933 * @nvmebuf: pointer to lpfc nvme command HBQ data structure.
1935 * This routine is used for processing the WQE associated with a unsolicited
1936 * event. It first determines whether there is an existing ndlp that matches
1937 * the DID from the unsolicited WQE. If not, it will create a new one with
1938 * the DID from the unsolicited WQE. The ELS command from the unsolicited
1939 * WQE is then used to invoke the proper routine and to set up proper state
1940 * of the discovery state machine.
1943 lpfc_nvmet_unsol_ls_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1944 struct hbq_dmabuf *nvmebuf)
1946 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
1947 struct lpfc_nvmet_tgtport *tgtp;
1948 struct fc_frame_header *fc_hdr;
1949 struct lpfc_nvmet_rcv_ctx *ctxp;
1951 uint32_t size, oxid, sid, rc;
1954 if (!nvmebuf || !phba->targetport) {
1955 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
1956 "6154 LS Drop IO\n");
1964 fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
1965 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
1967 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
1968 payload = (uint32_t *)(nvmebuf->dbuf.virt);
1969 size = bf_get(lpfc_rcqe_length, &nvmebuf->cq_event.cqe.rcqe_cmpl);
1970 sid = sli4_sid_from_fc_hdr(fc_hdr);
1972 ctxp = kzalloc(sizeof(struct lpfc_nvmet_rcv_ctx), GFP_ATOMIC);
1974 atomic_inc(&tgtp->rcv_ls_req_drop);
1975 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
1976 "6155 LS Drop IO x%x: Alloc\n",
1979 lpfc_nvmeio_data(phba, "NVMET LS DROP: "
1980 "xri x%x sz %d from %06x\n",
1982 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
1990 ctxp->state = LPFC_NVMET_STE_LS_RCV;
1991 ctxp->entry_cnt = 1;
1992 ctxp->rqb_buffer = (void *)nvmebuf;
1993 ctxp->hdwq = &phba->sli4_hba.hdwq[0];
1995 lpfc_nvmeio_data(phba, "NVMET LS RCV: xri x%x sz %d from %06x\n",
1998 * The calling sequence should be:
1999 * nvmet_fc_rcv_ls_req -> lpfc_nvmet_xmt_ls_rsp/cmp ->_req->done
2000 * lpfc_nvmet_xmt_ls_rsp_cmp should free the allocated ctxp.
2002 atomic_inc(&tgtp->rcv_ls_req_in);
2003 rc = nvmet_fc_rcv_ls_req(phba->targetport, &ctxp->ctx.ls_req,
2006 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
2007 "6037 NVMET Unsol rcv: sz %d rc %d: %08x %08x %08x "
2008 "%08x %08x %08x\n", size, rc,
2009 *payload, *(payload+1), *(payload+2),
2010 *(payload+3), *(payload+4), *(payload+5));
2013 atomic_inc(&tgtp->rcv_ls_req_out);
2017 lpfc_nvmeio_data(phba, "NVMET LS DROP: xri x%x sz %d from %06x\n",
2020 atomic_inc(&tgtp->rcv_ls_req_drop);
2021 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2022 "6156 LS Drop IO x%x: nvmet_fc_rcv_ls_req %d\n",
2025 /* We assume a rcv'ed cmd ALWAYs fits into 1 buffer */
2026 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
2028 atomic_inc(&tgtp->xmt_ls_abort);
2029 lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp, sid, oxid);
2034 lpfc_nvmet_process_rcv_fcp_req(struct lpfc_nvmet_ctxbuf *ctx_buf)
2036 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
2037 struct lpfc_nvmet_rcv_ctx *ctxp = ctx_buf->context;
2038 struct lpfc_hba *phba = ctxp->phba;
2039 struct rqb_dmabuf *nvmebuf = ctxp->rqb_buffer;
2040 struct lpfc_nvmet_tgtport *tgtp;
2041 uint32_t *payload, qno;
2043 unsigned long iflags;
2046 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2047 "6159 process_rcv_fcp_req, nvmebuf is NULL, "
2048 "oxid: x%x flg: x%x state: x%x\n",
2049 ctxp->oxid, ctxp->flag, ctxp->state);
2050 spin_lock_irqsave(&ctxp->ctxlock, iflags);
2051 lpfc_nvmet_defer_release(phba, ctxp);
2052 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2053 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
2058 if (ctxp->flag & LPFC_NVMET_ABTS_RCV) {
2059 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2060 "6324 IO oxid x%x aborted\n",
2065 payload = (uint32_t *)(nvmebuf->dbuf.virt);
2066 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2067 ctxp->flag |= LPFC_NVMET_TNOTIFY;
2068 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
2069 if (ctxp->ts_isr_cmd)
2070 ctxp->ts_cmd_nvme = ktime_get_ns();
2073 * The calling sequence should be:
2074 * nvmet_fc_rcv_fcp_req->lpfc_nvmet_xmt_fcp_op/cmp- req->done
2075 * lpfc_nvmet_xmt_fcp_op_cmp should free the allocated ctxp.
2076 * When we return from nvmet_fc_rcv_fcp_req, all relevant info
2077 * the NVME command / FC header is stored.
2078 * A buffer has already been reposted for this IO, so just free
2081 rc = nvmet_fc_rcv_fcp_req(phba->targetport, &ctxp->ctx.fcp_req,
2082 payload, ctxp->size);
2083 /* Process FCP command */
2085 atomic_inc(&tgtp->rcv_fcp_cmd_out);
2086 spin_lock_irqsave(&ctxp->ctxlock, iflags);
2087 if ((ctxp->flag & LPFC_NVMET_CTX_REUSE_WQ) ||
2088 (nvmebuf != ctxp->rqb_buffer)) {
2089 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2092 ctxp->rqb_buffer = NULL;
2093 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2094 lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
2098 /* Processing of FCP command is deferred */
2099 if (rc == -EOVERFLOW) {
2100 lpfc_nvmeio_data(phba, "NVMET RCV BUSY: xri x%x sz %d "
2102 ctxp->oxid, ctxp->size, ctxp->sid);
2103 atomic_inc(&tgtp->rcv_fcp_cmd_out);
2104 atomic_inc(&tgtp->defer_fod);
2105 spin_lock_irqsave(&ctxp->ctxlock, iflags);
2106 if (ctxp->flag & LPFC_NVMET_CTX_REUSE_WQ) {
2107 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2110 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2112 * Post a replacement DMA buffer to RQ and defer
2113 * freeing rcv buffer till .defer_rcv callback
2116 lpfc_post_rq_buffer(
2117 phba, phba->sli4_hba.nvmet_mrq_hdr[qno],
2118 phba->sli4_hba.nvmet_mrq_data[qno], 1, qno);
2121 ctxp->flag &= ~LPFC_NVMET_TNOTIFY;
2122 atomic_inc(&tgtp->rcv_fcp_cmd_drop);
2123 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2124 "2582 FCP Drop IO x%x: err x%x: x%x x%x x%x\n",
2126 atomic_read(&tgtp->rcv_fcp_cmd_in),
2127 atomic_read(&tgtp->rcv_fcp_cmd_out),
2128 atomic_read(&tgtp->xmt_fcp_release));
2129 lpfc_nvmeio_data(phba, "NVMET FCP DROP: xri x%x sz %d from %06x\n",
2130 ctxp->oxid, ctxp->size, ctxp->sid);
2131 spin_lock_irqsave(&ctxp->ctxlock, iflags);
2132 lpfc_nvmet_defer_release(phba, ctxp);
2133 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2134 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid, ctxp->oxid);
2139 lpfc_nvmet_fcp_rqst_defer_work(struct work_struct *work)
2141 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
2142 struct lpfc_nvmet_ctxbuf *ctx_buf =
2143 container_of(work, struct lpfc_nvmet_ctxbuf, defer_work);
2145 lpfc_nvmet_process_rcv_fcp_req(ctx_buf);
2149 static struct lpfc_nvmet_ctxbuf *
2150 lpfc_nvmet_replenish_context(struct lpfc_hba *phba,
2151 struct lpfc_nvmet_ctx_info *current_infop)
2153 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
2154 struct lpfc_nvmet_ctxbuf *ctx_buf = NULL;
2155 struct lpfc_nvmet_ctx_info *get_infop;
2159 * The current_infop for the MRQ a NVME command IU was received
2160 * on is empty. Our goal is to replenish this MRQs context
2161 * list from a another CPUs.
2163 * First we need to pick a context list to start looking on.
2164 * nvmet_ctx_start_cpu has available context the last time
2165 * we needed to replenish this CPU where nvmet_ctx_next_cpu
2166 * is just the next sequential CPU for this MRQ.
2168 if (current_infop->nvmet_ctx_start_cpu)
2169 get_infop = current_infop->nvmet_ctx_start_cpu;
2171 get_infop = current_infop->nvmet_ctx_next_cpu;
2173 for (i = 0; i < phba->sli4_hba.num_possible_cpu; i++) {
2174 if (get_infop == current_infop) {
2175 get_infop = get_infop->nvmet_ctx_next_cpu;
2178 spin_lock(&get_infop->nvmet_ctx_list_lock);
2180 /* Just take the entire context list, if there are any */
2181 if (get_infop->nvmet_ctx_list_cnt) {
2182 list_splice_init(&get_infop->nvmet_ctx_list,
2183 ¤t_infop->nvmet_ctx_list);
2184 current_infop->nvmet_ctx_list_cnt =
2185 get_infop->nvmet_ctx_list_cnt - 1;
2186 get_infop->nvmet_ctx_list_cnt = 0;
2187 spin_unlock(&get_infop->nvmet_ctx_list_lock);
2189 current_infop->nvmet_ctx_start_cpu = get_infop;
2190 list_remove_head(¤t_infop->nvmet_ctx_list,
2191 ctx_buf, struct lpfc_nvmet_ctxbuf,
2196 /* Otherwise, move on to the next CPU for this MRQ */
2197 spin_unlock(&get_infop->nvmet_ctx_list_lock);
2198 get_infop = get_infop->nvmet_ctx_next_cpu;
2202 /* Nothing found, all contexts for the MRQ are in-flight */
2207 * lpfc_nvmet_unsol_fcp_buffer - Process an unsolicited event data buffer
2208 * @phba: pointer to lpfc hba data structure.
2209 * @idx: relative index of MRQ vector
2210 * @nvmebuf: pointer to lpfc nvme command HBQ data structure.
2211 * @isr_timestamp: in jiffies.
2212 * @cqflag: cq processing information regarding workload.
2214 * This routine is used for processing the WQE associated with a unsolicited
2215 * event. It first determines whether there is an existing ndlp that matches
2216 * the DID from the unsolicited WQE. If not, it will create a new one with
2217 * the DID from the unsolicited WQE. The ELS command from the unsolicited
2218 * WQE is then used to invoke the proper routine and to set up proper state
2219 * of the discovery state machine.
2222 lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
2224 struct rqb_dmabuf *nvmebuf,
2225 uint64_t isr_timestamp,
2228 struct lpfc_nvmet_rcv_ctx *ctxp;
2229 struct lpfc_nvmet_tgtport *tgtp;
2230 struct fc_frame_header *fc_hdr;
2231 struct lpfc_nvmet_ctxbuf *ctx_buf;
2232 struct lpfc_nvmet_ctx_info *current_infop;
2233 uint32_t size, oxid, sid, qno;
2234 unsigned long iflag;
2237 if (!IS_ENABLED(CONFIG_NVME_TARGET_FC))
2241 if (!nvmebuf || !phba->targetport) {
2242 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2243 "6157 NVMET FCP Drop IO\n");
2245 lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
2250 * Get a pointer to the context list for this MRQ based on
2251 * the CPU this MRQ IRQ is associated with. If the CPU association
2252 * changes from our initial assumption, the context list could
2253 * be empty, thus it would need to be replenished with the
2254 * context list from another CPU for this MRQ.
2256 current_cpu = raw_smp_processor_id();
2257 current_infop = lpfc_get_ctx_list(phba, current_cpu, idx);
2258 spin_lock_irqsave(¤t_infop->nvmet_ctx_list_lock, iflag);
2259 if (current_infop->nvmet_ctx_list_cnt) {
2260 list_remove_head(¤t_infop->nvmet_ctx_list,
2261 ctx_buf, struct lpfc_nvmet_ctxbuf, list);
2262 current_infop->nvmet_ctx_list_cnt--;
2264 ctx_buf = lpfc_nvmet_replenish_context(phba, current_infop);
2266 spin_unlock_irqrestore(¤t_infop->nvmet_ctx_list_lock, iflag);
2268 fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
2269 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
2270 size = nvmebuf->bytes_recv;
2272 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
2273 if (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV) {
2274 if (current_cpu < LPFC_CHECK_CPU_CNT) {
2275 if (idx != current_cpu)
2276 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
2277 "6703 CPU Check rcv: "
2278 "cpu %d expect %d\n",
2280 phba->sli4_hba.hdwq[idx].cpucheck_rcv_io[current_cpu]++;
2285 lpfc_nvmeio_data(phba, "NVMET FCP RCV: xri x%x sz %d CPU %02x\n",
2286 oxid, size, raw_smp_processor_id());
2288 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2291 /* Queue this NVME IO to process later */
2292 spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
2293 list_add_tail(&nvmebuf->hbuf.list,
2294 &phba->sli4_hba.lpfc_nvmet_io_wait_list);
2295 phba->sli4_hba.nvmet_io_wait_cnt++;
2296 phba->sli4_hba.nvmet_io_wait_total++;
2297 spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
2300 /* Post a brand new DMA buffer to RQ */
2302 lpfc_post_rq_buffer(
2303 phba, phba->sli4_hba.nvmet_mrq_hdr[qno],
2304 phba->sli4_hba.nvmet_mrq_data[qno], 1, qno);
2306 atomic_inc(&tgtp->defer_ctx);
2310 sid = sli4_sid_from_fc_hdr(fc_hdr);
2312 ctxp = (struct lpfc_nvmet_rcv_ctx *)ctx_buf->context;
2313 spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
2314 list_add_tail(&ctxp->list, &phba->sli4_hba.t_active_ctx_list);
2315 spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
2316 if (ctxp->state != LPFC_NVMET_STE_FREE) {
2317 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2318 "6414 NVMET Context corrupt %d %d oxid x%x\n",
2319 ctxp->state, ctxp->entry_cnt, ctxp->oxid);
2328 ctxp->state = LPFC_NVMET_STE_RCV;
2329 ctxp->entry_cnt = 1;
2331 ctxp->ctxbuf = ctx_buf;
2332 ctxp->rqb_buffer = (void *)nvmebuf;
2334 spin_lock_init(&ctxp->ctxlock);
2336 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
2338 ctxp->ts_isr_cmd = isr_timestamp;
2339 ctxp->ts_cmd_nvme = 0;
2340 ctxp->ts_nvme_data = 0;
2341 ctxp->ts_data_wqput = 0;
2342 ctxp->ts_isr_data = 0;
2343 ctxp->ts_data_nvme = 0;
2344 ctxp->ts_nvme_status = 0;
2345 ctxp->ts_status_wqput = 0;
2346 ctxp->ts_isr_status = 0;
2347 ctxp->ts_status_nvme = 0;
2350 atomic_inc(&tgtp->rcv_fcp_cmd_in);
2351 /* check for cq processing load */
2353 lpfc_nvmet_process_rcv_fcp_req(ctx_buf);
2357 if (!queue_work(phba->wq, &ctx_buf->defer_work)) {
2358 atomic_inc(&tgtp->rcv_fcp_cmd_drop);
2359 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
2360 "6325 Unable to queue work for oxid x%x. "
2361 "FCP Drop IO [x%x x%x x%x]\n",
2363 atomic_read(&tgtp->rcv_fcp_cmd_in),
2364 atomic_read(&tgtp->rcv_fcp_cmd_out),
2365 atomic_read(&tgtp->xmt_fcp_release));
2367 spin_lock_irqsave(&ctxp->ctxlock, iflag);
2368 lpfc_nvmet_defer_release(phba, ctxp);
2369 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
2370 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid);
2375 * lpfc_nvmet_unsol_ls_event - Process an unsolicited event from an nvme nport
2376 * @phba: pointer to lpfc hba data structure.
2377 * @pring: pointer to a SLI ring.
2378 * @nvmebuf: pointer to received nvme data structure.
2380 * This routine is used to process an unsolicited event received from a SLI
2381 * (Service Level Interface) ring. The actual processing of the data buffer
2382 * associated with the unsolicited event is done by invoking the routine
2383 * lpfc_nvmet_unsol_ls_buffer() after properly set up the buffer from the
2384 * SLI RQ on which the unsolicited event was received.
2387 lpfc_nvmet_unsol_ls_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2388 struct lpfc_iocbq *piocb)
2390 struct lpfc_dmabuf *d_buf;
2391 struct hbq_dmabuf *nvmebuf;
2393 d_buf = piocb->context2;
2394 nvmebuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2397 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2398 "3015 LS Drop IO\n");
2401 if (phba->nvmet_support == 0) {
2402 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
2405 lpfc_nvmet_unsol_ls_buffer(phba, pring, nvmebuf);
2409 * lpfc_nvmet_unsol_fcp_event - Process an unsolicited event from an nvme nport
2410 * @phba: pointer to lpfc hba data structure.
2411 * @idx: relative index of MRQ vector
2412 * @nvmebuf: pointer to received nvme data structure.
2413 * @isr_timestamp: in jiffies.
2414 * @cqflag: cq processing information regarding workload.
2416 * This routine is used to process an unsolicited event received from a SLI
2417 * (Service Level Interface) ring. The actual processing of the data buffer
2418 * associated with the unsolicited event is done by invoking the routine
2419 * lpfc_nvmet_unsol_fcp_buffer() after properly set up the buffer from the
2420 * SLI RQ on which the unsolicited event was received.
2423 lpfc_nvmet_unsol_fcp_event(struct lpfc_hba *phba,
2425 struct rqb_dmabuf *nvmebuf,
2426 uint64_t isr_timestamp,
2430 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2431 "3167 NVMET FCP Drop IO\n");
2434 if (phba->nvmet_support == 0) {
2435 lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
2438 lpfc_nvmet_unsol_fcp_buffer(phba, idx, nvmebuf, isr_timestamp, cqflag);
2442 * lpfc_nvmet_prep_ls_wqe - Allocate and prepare a lpfc wqe data structure
2443 * @phba: pointer to a host N_Port data structure.
2444 * @ctxp: Context info for NVME LS Request
2445 * @rspbuf: DMA buffer of NVME command.
2446 * @rspsize: size of the NVME command.
2448 * This routine is used for allocating a lpfc-WQE data structure from
2449 * the driver lpfc-WQE free-list and prepare the WQE with the parameters
2450 * passed into the routine for discovery state machine to issue an Extended
2451 * Link Service (NVME) commands. It is a generic lpfc-WQE allocation
2452 * and preparation routine that is used by all the discovery state machine
2453 * routines and the NVME command-specific fields will be later set up by
2454 * the individual discovery machine routines after calling this routine
2455 * allocating and preparing a generic WQE data structure. It fills in the
2456 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
2457 * payload and response payload (if expected). The reference count on the
2458 * ndlp is incremented by 1 and the reference to the ndlp is put into
2459 * context1 of the WQE data structure for this WQE to hold the ndlp
2460 * reference for the command's callback function to access later.
2463 * Pointer to the newly allocated/prepared nvme wqe data structure
2464 * NULL - when nvme wqe data structure allocation/preparation failed
2466 static struct lpfc_iocbq *
2467 lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *phba,
2468 struct lpfc_nvmet_rcv_ctx *ctxp,
2469 dma_addr_t rspbuf, uint16_t rspsize)
2471 struct lpfc_nodelist *ndlp;
2472 struct lpfc_iocbq *nvmewqe;
2473 union lpfc_wqe128 *wqe;
2475 if (!lpfc_is_link_up(phba)) {
2476 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
2477 "6104 NVMET prep LS wqe: link err: "
2478 "NPORT x%x oxid:x%x ste %d\n",
2479 ctxp->sid, ctxp->oxid, ctxp->state);
2483 /* Allocate buffer for command wqe */
2484 nvmewqe = lpfc_sli_get_iocbq(phba);
2485 if (nvmewqe == NULL) {
2486 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
2487 "6105 NVMET prep LS wqe: No WQE: "
2488 "NPORT x%x oxid x%x ste %d\n",
2489 ctxp->sid, ctxp->oxid, ctxp->state);
2493 ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
2494 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) ||
2495 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2496 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
2497 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
2498 "6106 NVMET prep LS wqe: No ndlp: "
2499 "NPORT x%x oxid x%x ste %d\n",
2500 ctxp->sid, ctxp->oxid, ctxp->state);
2501 goto nvme_wqe_free_wqeq_exit;
2503 ctxp->wqeq = nvmewqe;
2505 /* prevent preparing wqe with NULL ndlp reference */
2506 nvmewqe->context1 = lpfc_nlp_get(ndlp);
2507 if (nvmewqe->context1 == NULL)
2508 goto nvme_wqe_free_wqeq_exit;
2509 nvmewqe->context2 = ctxp;
2511 wqe = &nvmewqe->wqe;
2512 memset(wqe, 0, sizeof(union lpfc_wqe));
2515 wqe->xmit_sequence.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2516 wqe->xmit_sequence.bde.tus.f.bdeSize = rspsize;
2517 wqe->xmit_sequence.bde.addrLow = le32_to_cpu(putPaddrLow(rspbuf));
2518 wqe->xmit_sequence.bde.addrHigh = le32_to_cpu(putPaddrHigh(rspbuf));
2525 bf_set(wqe_dfctl, &wqe->xmit_sequence.wge_ctl, 0);
2526 bf_set(wqe_ls, &wqe->xmit_sequence.wge_ctl, 1);
2527 bf_set(wqe_la, &wqe->xmit_sequence.wge_ctl, 0);
2528 bf_set(wqe_rctl, &wqe->xmit_sequence.wge_ctl, FC_RCTL_ELS4_REP);
2529 bf_set(wqe_type, &wqe->xmit_sequence.wge_ctl, FC_TYPE_NVME);
2532 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
2533 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2534 bf_set(wqe_xri_tag, &wqe->xmit_sequence.wqe_com, nvmewqe->sli4_xritag);
2537 bf_set(wqe_cmnd, &wqe->xmit_sequence.wqe_com,
2538 CMD_XMIT_SEQUENCE64_WQE);
2539 bf_set(wqe_ct, &wqe->xmit_sequence.wqe_com, SLI4_CT_RPI);
2540 bf_set(wqe_class, &wqe->xmit_sequence.wqe_com, CLASS3);
2541 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
2544 wqe->xmit_sequence.wqe_com.abort_tag = nvmewqe->iotag;
2547 bf_set(wqe_reqtag, &wqe->xmit_sequence.wqe_com, nvmewqe->iotag);
2548 /* Needs to be set by caller */
2549 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com, ctxp->oxid);
2552 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
2553 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE);
2554 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
2555 LPFC_WQE_LENLOC_WORD12);
2556 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
2559 bf_set(wqe_cqid, &wqe->xmit_sequence.wqe_com,
2560 LPFC_WQE_CQ_ID_DEFAULT);
2561 bf_set(wqe_cmd_type, &wqe->xmit_sequence.wqe_com,
2565 wqe->xmit_sequence.xmit_len = rspsize;
2568 nvmewqe->vport = phba->pport;
2569 nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT;
2570 nvmewqe->iocb_flag |= LPFC_IO_NVME_LS;
2572 /* Xmit NVMET response to remote NPORT <did> */
2573 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
2574 "6039 Xmit NVMET LS response to remote "
2575 "NPORT x%x iotag:x%x oxid:x%x size:x%x\n",
2576 ndlp->nlp_DID, nvmewqe->iotag, ctxp->oxid,
2580 nvme_wqe_free_wqeq_exit:
2581 nvmewqe->context2 = NULL;
2582 nvmewqe->context3 = NULL;
2583 lpfc_sli_release_iocbq(phba, nvmewqe);
2588 static struct lpfc_iocbq *
2589 lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba,
2590 struct lpfc_nvmet_rcv_ctx *ctxp)
2592 struct nvmefc_tgt_fcp_req *rsp = &ctxp->ctx.fcp_req;
2593 struct lpfc_nvmet_tgtport *tgtp;
2594 struct sli4_sge *sgl;
2595 struct lpfc_nodelist *ndlp;
2596 struct lpfc_iocbq *nvmewqe;
2597 struct scatterlist *sgel;
2598 union lpfc_wqe128 *wqe;
2599 struct ulp_bde64 *bde;
2600 dma_addr_t physaddr;
2605 if (!lpfc_is_link_up(phba)) {
2606 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2607 "6107 NVMET prep FCP wqe: link err:"
2608 "NPORT x%x oxid x%x ste %d\n",
2609 ctxp->sid, ctxp->oxid, ctxp->state);
2613 ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
2614 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) ||
2615 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2616 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
2617 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2618 "6108 NVMET prep FCP wqe: no ndlp: "
2619 "NPORT x%x oxid x%x ste %d\n",
2620 ctxp->sid, ctxp->oxid, ctxp->state);
2624 if (rsp->sg_cnt > lpfc_tgttemplate.max_sgl_segments) {
2625 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2626 "6109 NVMET prep FCP wqe: seg cnt err: "
2627 "NPORT x%x oxid x%x ste %d cnt %d\n",
2628 ctxp->sid, ctxp->oxid, ctxp->state,
2629 phba->cfg_nvme_seg_cnt);
2633 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2634 nvmewqe = ctxp->wqeq;
2635 if (nvmewqe == NULL) {
2636 /* Allocate buffer for command wqe */
2637 nvmewqe = ctxp->ctxbuf->iocbq;
2638 if (nvmewqe == NULL) {
2639 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2640 "6110 NVMET prep FCP wqe: No "
2641 "WQE: NPORT x%x oxid x%x ste %d\n",
2642 ctxp->sid, ctxp->oxid, ctxp->state);
2645 ctxp->wqeq = nvmewqe;
2646 xc = 0; /* create new XRI */
2647 nvmewqe->sli4_lxritag = NO_XRI;
2648 nvmewqe->sli4_xritag = NO_XRI;
2652 if (((ctxp->state == LPFC_NVMET_STE_RCV) &&
2653 (ctxp->entry_cnt == 1)) ||
2654 (ctxp->state == LPFC_NVMET_STE_DATA)) {
2655 wqe = &nvmewqe->wqe;
2657 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
2658 "6111 Wrong state NVMET FCP: %d cnt %d\n",
2659 ctxp->state, ctxp->entry_cnt);
2663 sgl = (struct sli4_sge *)ctxp->ctxbuf->sglq->sgl;
2665 case NVMET_FCOP_READDATA:
2666 case NVMET_FCOP_READDATA_RSP:
2667 /* From the tsend template, initialize words 7 - 11 */
2668 memcpy(&wqe->words[7],
2669 &lpfc_tsend_cmd_template.words[7],
2670 sizeof(uint32_t) * 5);
2672 /* Words 0 - 2 : The first sg segment */
2674 physaddr = sg_dma_address(sgel);
2675 wqe->fcp_tsend.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2676 wqe->fcp_tsend.bde.tus.f.bdeSize = sg_dma_len(sgel);
2677 wqe->fcp_tsend.bde.addrLow = cpu_to_le32(putPaddrLow(physaddr));
2678 wqe->fcp_tsend.bde.addrHigh =
2679 cpu_to_le32(putPaddrHigh(physaddr));
2682 wqe->fcp_tsend.payload_offset_len = 0;
2685 wqe->fcp_tsend.relative_offset = ctxp->offset;
2688 wqe->fcp_tsend.reserved = 0;
2691 bf_set(wqe_ctxt_tag, &wqe->fcp_tsend.wqe_com,
2692 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2693 bf_set(wqe_xri_tag, &wqe->fcp_tsend.wqe_com,
2694 nvmewqe->sli4_xritag);
2696 /* Word 7 - set ar later */
2699 wqe->fcp_tsend.wqe_com.abort_tag = nvmewqe->iotag;
2702 bf_set(wqe_reqtag, &wqe->fcp_tsend.wqe_com, nvmewqe->iotag);
2703 bf_set(wqe_rcvoxid, &wqe->fcp_tsend.wqe_com, ctxp->oxid);
2705 /* Word 10 - set wqes later, in template xc=1 */
2707 bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 0);
2709 /* Word 11 - set sup, irsp, irsplen later */
2713 wqe->fcp_tsend.fcp_data_len = rsp->transfer_length;
2715 /* Setup 2 SKIP SGEs */
2719 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
2720 sgl->word2 = cpu_to_le32(sgl->word2);
2726 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
2727 sgl->word2 = cpu_to_le32(sgl->word2);
2730 if (rsp->op == NVMET_FCOP_READDATA_RSP) {
2731 atomic_inc(&tgtp->xmt_fcp_read_rsp);
2733 /* In template ar=1 wqes=0 sup=0 irsp=0 irsplen=0 */
2735 if (rsp->rsplen == LPFC_NVMET_SUCCESS_LEN) {
2736 if (ndlp->nlp_flag & NLP_SUPPRESS_RSP)
2738 &wqe->fcp_tsend.wqe_com, 1);
2740 bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 1);
2741 bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 1);
2742 bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com,
2743 ((rsp->rsplen >> 2) - 1));
2744 memcpy(&wqe->words[16], rsp->rspaddr,
2748 atomic_inc(&tgtp->xmt_fcp_read);
2750 /* In template ar=1 wqes=0 sup=0 irsp=0 irsplen=0 */
2751 bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 0);
2755 case NVMET_FCOP_WRITEDATA:
2756 /* From the treceive template, initialize words 3 - 11 */
2757 memcpy(&wqe->words[3],
2758 &lpfc_treceive_cmd_template.words[3],
2759 sizeof(uint32_t) * 9);
2761 /* Words 0 - 2 : First SGE is skipped, set invalid BDE type */
2762 wqe->fcp_treceive.bde.tus.f.bdeFlags = LPFC_SGE_TYPE_SKIP;
2763 wqe->fcp_treceive.bde.tus.f.bdeSize = 0;
2764 wqe->fcp_treceive.bde.addrLow = 0;
2765 wqe->fcp_treceive.bde.addrHigh = 0;
2768 wqe->fcp_treceive.relative_offset = ctxp->offset;
2771 bf_set(wqe_ctxt_tag, &wqe->fcp_treceive.wqe_com,
2772 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2773 bf_set(wqe_xri_tag, &wqe->fcp_treceive.wqe_com,
2774 nvmewqe->sli4_xritag);
2779 wqe->fcp_treceive.wqe_com.abort_tag = nvmewqe->iotag;
2782 bf_set(wqe_reqtag, &wqe->fcp_treceive.wqe_com, nvmewqe->iotag);
2783 bf_set(wqe_rcvoxid, &wqe->fcp_treceive.wqe_com, ctxp->oxid);
2785 /* Word 10 - in template xc=1 */
2787 bf_set(wqe_xc, &wqe->fcp_treceive.wqe_com, 0);
2789 /* Word 11 - set pbde later */
2790 if (phba->cfg_enable_pbde) {
2793 bf_set(wqe_pbde, &wqe->fcp_treceive.wqe_com, 0);
2798 wqe->fcp_tsend.fcp_data_len = rsp->transfer_length;
2800 /* Setup 2 SKIP SGEs */
2804 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
2805 sgl->word2 = cpu_to_le32(sgl->word2);
2811 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
2812 sgl->word2 = cpu_to_le32(sgl->word2);
2815 atomic_inc(&tgtp->xmt_fcp_write);
2818 case NVMET_FCOP_RSP:
2819 /* From the treceive template, initialize words 4 - 11 */
2820 memcpy(&wqe->words[4],
2821 &lpfc_trsp_cmd_template.words[4],
2822 sizeof(uint32_t) * 8);
2825 physaddr = rsp->rspdma;
2826 wqe->fcp_trsp.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2827 wqe->fcp_trsp.bde.tus.f.bdeSize = rsp->rsplen;
2828 wqe->fcp_trsp.bde.addrLow =
2829 cpu_to_le32(putPaddrLow(physaddr));
2830 wqe->fcp_trsp.bde.addrHigh =
2831 cpu_to_le32(putPaddrHigh(physaddr));
2834 wqe->fcp_trsp.response_len = rsp->rsplen;
2837 bf_set(wqe_ctxt_tag, &wqe->fcp_trsp.wqe_com,
2838 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2839 bf_set(wqe_xri_tag, &wqe->fcp_trsp.wqe_com,
2840 nvmewqe->sli4_xritag);
2845 wqe->fcp_trsp.wqe_com.abort_tag = nvmewqe->iotag;
2848 bf_set(wqe_reqtag, &wqe->fcp_trsp.wqe_com, nvmewqe->iotag);
2849 bf_set(wqe_rcvoxid, &wqe->fcp_trsp.wqe_com, ctxp->oxid);
2853 bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, 1);
2856 /* In template wqes=0 irsp=0 irsplen=0 - good response */
2857 if (rsp->rsplen != LPFC_NVMET_SUCCESS_LEN) {
2858 /* Bad response - embed it */
2859 bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 1);
2860 bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 1);
2861 bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com,
2862 ((rsp->rsplen >> 2) - 1));
2863 memcpy(&wqe->words[16], rsp->rspaddr, rsp->rsplen);
2868 wqe->fcp_trsp.rsvd_12_15[0] = 0;
2870 /* Use rspbuf, NOT sg list */
2873 atomic_inc(&tgtp->xmt_fcp_rsp);
2877 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
2878 "6064 Unknown Rsp Op %d\n",
2884 nvmewqe->vport = phba->pport;
2885 nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT;
2886 nvmewqe->context1 = ndlp;
2888 for_each_sg(rsp->sg, sgel, rsp->sg_cnt, i) {
2889 physaddr = sg_dma_address(sgel);
2890 cnt = sg_dma_len(sgel);
2891 sgl->addr_hi = putPaddrHigh(physaddr);
2892 sgl->addr_lo = putPaddrLow(physaddr);
2894 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA);
2895 bf_set(lpfc_sli4_sge_offset, sgl, ctxp->offset);
2896 if ((i+1) == rsp->sg_cnt)
2897 bf_set(lpfc_sli4_sge_last, sgl, 1);
2898 sgl->word2 = cpu_to_le32(sgl->word2);
2899 sgl->sge_len = cpu_to_le32(cnt);
2901 bde = (struct ulp_bde64 *)&wqe->words[13];
2903 /* Words 13-15 (PBDE) */
2904 bde->addrLow = sgl->addr_lo;
2905 bde->addrHigh = sgl->addr_hi;
2906 bde->tus.f.bdeSize =
2907 le32_to_cpu(sgl->sge_len);
2908 bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2909 bde->tus.w = cpu_to_le32(bde->tus.w);
2911 memset(bde, 0, sizeof(struct ulp_bde64));
2915 ctxp->offset += cnt;
2917 ctxp->state = LPFC_NVMET_STE_DATA;
2923 * lpfc_nvmet_sol_fcp_abort_cmp - Completion handler for ABTS
2924 * @phba: Pointer to HBA context object.
2925 * @cmdwqe: Pointer to driver command WQE object.
2926 * @wcqe: Pointer to driver response CQE object.
2928 * The function is called from SLI ring event handler with no
2929 * lock held. This function is the completion handler for NVME ABTS for FCP cmds
2930 * The function frees memory resources used for the NVME commands.
2933 lpfc_nvmet_sol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
2934 struct lpfc_wcqe_complete *wcqe)
2936 struct lpfc_nvmet_rcv_ctx *ctxp;
2937 struct lpfc_nvmet_tgtport *tgtp;
2939 unsigned long flags;
2940 bool released = false;
2942 ctxp = cmdwqe->context2;
2943 result = wcqe->parameter;
2945 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2946 if (ctxp->flag & LPFC_NVMET_ABORT_OP)
2947 atomic_inc(&tgtp->xmt_fcp_abort_cmpl);
2949 spin_lock_irqsave(&ctxp->ctxlock, flags);
2950 ctxp->state = LPFC_NVMET_STE_DONE;
2952 /* Check if we already received a free context call
2953 * and we have completed processing an abort situation.
2955 if ((ctxp->flag & LPFC_NVMET_CTX_RLS) &&
2956 !(ctxp->flag & LPFC_NVMET_XBUSY)) {
2957 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
2958 list_del_init(&ctxp->list);
2959 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
2962 ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
2963 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
2964 atomic_inc(&tgtp->xmt_abort_rsp);
2966 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
2967 "6165 ABORT cmpl: oxid x%x flg x%x (%d) "
2968 "WCQE: %08x %08x %08x %08x\n",
2969 ctxp->oxid, ctxp->flag, released,
2970 wcqe->word0, wcqe->total_data_placed,
2971 result, wcqe->word3);
2973 cmdwqe->context2 = NULL;
2974 cmdwqe->context3 = NULL;
2976 * if transport has released ctx, then can reuse it. Otherwise,
2977 * will be recycled by transport release call.
2980 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
2982 /* This is the iocbq for the abort, not the command */
2983 lpfc_sli_release_iocbq(phba, cmdwqe);
2985 /* Since iaab/iaar are NOT set, there is no work left.
2986 * For LPFC_NVMET_XBUSY, lpfc_sli4_nvmet_xri_aborted
2987 * should have been called already.
2992 * lpfc_nvmet_unsol_fcp_abort_cmp - Completion handler for ABTS
2993 * @phba: Pointer to HBA context object.
2994 * @cmdwqe: Pointer to driver command WQE object.
2995 * @wcqe: Pointer to driver response CQE object.
2997 * The function is called from SLI ring event handler with no
2998 * lock held. This function is the completion handler for NVME ABTS for FCP cmds
2999 * The function frees memory resources used for the NVME commands.
3002 lpfc_nvmet_unsol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
3003 struct lpfc_wcqe_complete *wcqe)
3005 struct lpfc_nvmet_rcv_ctx *ctxp;
3006 struct lpfc_nvmet_tgtport *tgtp;
3007 unsigned long flags;
3009 bool released = false;
3011 ctxp = cmdwqe->context2;
3012 result = wcqe->parameter;
3015 /* if context is clear, related io alrady complete */
3016 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3017 "6070 ABTS cmpl: WCQE: %08x %08x %08x %08x\n",
3018 wcqe->word0, wcqe->total_data_placed,
3019 result, wcqe->word3);
3023 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3024 spin_lock_irqsave(&ctxp->ctxlock, flags);
3025 if (ctxp->flag & LPFC_NVMET_ABORT_OP)
3026 atomic_inc(&tgtp->xmt_fcp_abort_cmpl);
3029 if (ctxp->state != LPFC_NVMET_STE_ABORT) {
3030 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
3031 "6112 ABTS Wrong state:%d oxid x%x\n",
3032 ctxp->state, ctxp->oxid);
3035 /* Check if we already received a free context call
3036 * and we have completed processing an abort situation.
3038 ctxp->state = LPFC_NVMET_STE_DONE;
3039 if ((ctxp->flag & LPFC_NVMET_CTX_RLS) &&
3040 !(ctxp->flag & LPFC_NVMET_XBUSY)) {
3041 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3042 list_del_init(&ctxp->list);
3043 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3046 ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
3047 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3048 atomic_inc(&tgtp->xmt_abort_rsp);
3050 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3051 "6316 ABTS cmpl oxid x%x flg x%x (%x) "
3052 "WCQE: %08x %08x %08x %08x\n",
3053 ctxp->oxid, ctxp->flag, released,
3054 wcqe->word0, wcqe->total_data_placed,
3055 result, wcqe->word3);
3057 cmdwqe->context2 = NULL;
3058 cmdwqe->context3 = NULL;
3060 * if transport has released ctx, then can reuse it. Otherwise,
3061 * will be recycled by transport release call.
3064 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
3066 /* Since iaab/iaar are NOT set, there is no work left.
3067 * For LPFC_NVMET_XBUSY, lpfc_sli4_nvmet_xri_aborted
3068 * should have been called already.
3073 * lpfc_nvmet_xmt_ls_abort_cmp - Completion handler for ABTS
3074 * @phba: Pointer to HBA context object.
3075 * @cmdwqe: Pointer to driver command WQE object.
3076 * @wcqe: Pointer to driver response CQE object.
3078 * The function is called from SLI ring event handler with no
3079 * lock held. This function is the completion handler for NVME ABTS for LS cmds
3080 * The function frees memory resources used for the NVME commands.
3083 lpfc_nvmet_xmt_ls_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
3084 struct lpfc_wcqe_complete *wcqe)
3086 struct lpfc_nvmet_rcv_ctx *ctxp;
3087 struct lpfc_nvmet_tgtport *tgtp;
3090 ctxp = cmdwqe->context2;
3091 result = wcqe->parameter;
3093 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3094 atomic_inc(&tgtp->xmt_ls_abort_cmpl);
3096 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3097 "6083 Abort cmpl: ctx x%px WCQE:%08x %08x %08x %08x\n",
3098 ctxp, wcqe->word0, wcqe->total_data_placed,
3099 result, wcqe->word3);
3102 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
3103 "6415 NVMET LS Abort No ctx: WCQE: "
3104 "%08x %08x %08x %08x\n",
3105 wcqe->word0, wcqe->total_data_placed,
3106 result, wcqe->word3);
3108 lpfc_sli_release_iocbq(phba, cmdwqe);
3112 if (ctxp->state != LPFC_NVMET_STE_LS_ABORT) {
3113 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
3114 "6416 NVMET LS abort cmpl state mismatch: "
3115 "oxid x%x: %d %d\n",
3116 ctxp->oxid, ctxp->state, ctxp->entry_cnt);
3119 cmdwqe->context2 = NULL;
3120 cmdwqe->context3 = NULL;
3121 lpfc_sli_release_iocbq(phba, cmdwqe);
3126 lpfc_nvmet_unsol_issue_abort(struct lpfc_hba *phba,
3127 struct lpfc_nvmet_rcv_ctx *ctxp,
3128 uint32_t sid, uint16_t xri)
3130 struct lpfc_nvmet_tgtport *tgtp;
3131 struct lpfc_iocbq *abts_wqeq;
3132 union lpfc_wqe128 *wqe_abts;
3133 struct lpfc_nodelist *ndlp;
3135 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3136 "6067 ABTS: sid %x xri x%x/x%x\n",
3137 sid, xri, ctxp->wqeq->sli4_xritag);
3139 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3141 ndlp = lpfc_findnode_did(phba->pport, sid);
3142 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) ||
3143 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3144 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
3145 atomic_inc(&tgtp->xmt_abort_rsp_error);
3146 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
3147 "6134 Drop ABTS - wrong NDLP state x%x.\n",
3148 (ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE);
3150 /* No failure to an ABTS request. */
3154 abts_wqeq = ctxp->wqeq;
3155 wqe_abts = &abts_wqeq->wqe;
3158 * Since we zero the whole WQE, we need to ensure we set the WQE fields
3159 * that were initialized in lpfc_sli4_nvmet_alloc.
3161 memset(wqe_abts, 0, sizeof(union lpfc_wqe));
3164 bf_set(wqe_dfctl, &wqe_abts->xmit_sequence.wge_ctl, 0);
3165 bf_set(wqe_ls, &wqe_abts->xmit_sequence.wge_ctl, 1);
3166 bf_set(wqe_la, &wqe_abts->xmit_sequence.wge_ctl, 0);
3167 bf_set(wqe_rctl, &wqe_abts->xmit_sequence.wge_ctl, FC_RCTL_BA_ABTS);
3168 bf_set(wqe_type, &wqe_abts->xmit_sequence.wge_ctl, FC_TYPE_BLS);
3171 bf_set(wqe_ctxt_tag, &wqe_abts->xmit_sequence.wqe_com,
3172 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
3173 bf_set(wqe_xri_tag, &wqe_abts->xmit_sequence.wqe_com,
3174 abts_wqeq->sli4_xritag);
3177 bf_set(wqe_cmnd, &wqe_abts->xmit_sequence.wqe_com,
3178 CMD_XMIT_SEQUENCE64_WQE);
3179 bf_set(wqe_ct, &wqe_abts->xmit_sequence.wqe_com, SLI4_CT_RPI);
3180 bf_set(wqe_class, &wqe_abts->xmit_sequence.wqe_com, CLASS3);
3181 bf_set(wqe_pu, &wqe_abts->xmit_sequence.wqe_com, 0);
3184 wqe_abts->xmit_sequence.wqe_com.abort_tag = abts_wqeq->iotag;
3187 bf_set(wqe_reqtag, &wqe_abts->xmit_sequence.wqe_com, abts_wqeq->iotag);
3188 /* Needs to be set by caller */
3189 bf_set(wqe_rcvoxid, &wqe_abts->xmit_sequence.wqe_com, xri);
3192 bf_set(wqe_dbde, &wqe_abts->xmit_sequence.wqe_com, 1);
3193 bf_set(wqe_iod, &wqe_abts->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE);
3194 bf_set(wqe_lenloc, &wqe_abts->xmit_sequence.wqe_com,
3195 LPFC_WQE_LENLOC_WORD12);
3196 bf_set(wqe_ebde_cnt, &wqe_abts->xmit_sequence.wqe_com, 0);
3197 bf_set(wqe_qosd, &wqe_abts->xmit_sequence.wqe_com, 0);
3200 bf_set(wqe_cqid, &wqe_abts->xmit_sequence.wqe_com,
3201 LPFC_WQE_CQ_ID_DEFAULT);
3202 bf_set(wqe_cmd_type, &wqe_abts->xmit_sequence.wqe_com,
3205 abts_wqeq->vport = phba->pport;
3206 abts_wqeq->context1 = ndlp;
3207 abts_wqeq->context2 = ctxp;
3208 abts_wqeq->context3 = NULL;
3209 abts_wqeq->rsvd2 = 0;
3210 /* hba_wqidx should already be setup from command we are aborting */
3211 abts_wqeq->iocb.ulpCommand = CMD_XMIT_SEQUENCE64_CR;
3212 abts_wqeq->iocb.ulpLe = 1;
3214 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3215 "6069 Issue ABTS to xri x%x reqtag x%x\n",
3216 xri, abts_wqeq->iotag);
3221 lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *phba,
3222 struct lpfc_nvmet_rcv_ctx *ctxp,
3223 uint32_t sid, uint16_t xri)
3225 struct lpfc_nvmet_tgtport *tgtp;
3226 struct lpfc_iocbq *abts_wqeq;
3227 struct lpfc_nodelist *ndlp;
3228 unsigned long flags;
3232 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3234 ctxp->wqeq = ctxp->ctxbuf->iocbq;
3235 ctxp->wqeq->hba_wqidx = 0;
3238 ndlp = lpfc_findnode_did(phba->pport, sid);
3239 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) ||
3240 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3241 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
3242 atomic_inc(&tgtp->xmt_abort_rsp_error);
3243 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
3244 "6160 Drop ABORT - wrong NDLP state x%x.\n",
3245 (ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE);
3247 /* No failure to an ABTS request. */
3248 spin_lock_irqsave(&ctxp->ctxlock, flags);
3249 ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
3250 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3254 /* Issue ABTS for this WQE based on iotag */
3255 ctxp->abort_wqeq = lpfc_sli_get_iocbq(phba);
3256 spin_lock_irqsave(&ctxp->ctxlock, flags);
3257 if (!ctxp->abort_wqeq) {
3258 atomic_inc(&tgtp->xmt_abort_rsp_error);
3259 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
3260 "6161 ABORT failed: No wqeqs: "
3261 "xri: x%x\n", ctxp->oxid);
3262 /* No failure to an ABTS request. */
3263 ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
3264 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3267 abts_wqeq = ctxp->abort_wqeq;
3268 ctxp->state = LPFC_NVMET_STE_ABORT;
3269 opt = (ctxp->flag & LPFC_NVMET_ABTS_RCV) ? INHIBIT_ABORT : 0;
3270 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3272 /* Announce entry to new IO submit field. */
3273 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3274 "6162 ABORT Request to rport DID x%06x "
3275 "for xri x%x x%x\n",
3276 ctxp->sid, ctxp->oxid, ctxp->wqeq->sli4_xritag);
3278 /* If the hba is getting reset, this flag is set. It is
3279 * cleared when the reset is complete and rings reestablished.
3281 spin_lock_irqsave(&phba->hbalock, flags);
3282 /* driver queued commands are in process of being flushed */
3283 if (phba->hba_flag & HBA_IOQ_FLUSH) {
3284 spin_unlock_irqrestore(&phba->hbalock, flags);
3285 atomic_inc(&tgtp->xmt_abort_rsp_error);
3286 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
3287 "6163 Driver in reset cleanup - flushing "
3288 "NVME Req now. hba_flag x%x oxid x%x\n",
3289 phba->hba_flag, ctxp->oxid);
3290 lpfc_sli_release_iocbq(phba, abts_wqeq);
3291 spin_lock_irqsave(&ctxp->ctxlock, flags);
3292 ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
3293 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3297 /* Outstanding abort is in progress */
3298 if (abts_wqeq->iocb_flag & LPFC_DRIVER_ABORTED) {
3299 spin_unlock_irqrestore(&phba->hbalock, flags);
3300 atomic_inc(&tgtp->xmt_abort_rsp_error);
3301 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
3302 "6164 Outstanding NVME I/O Abort Request "
3303 "still pending on oxid x%x\n",
3305 lpfc_sli_release_iocbq(phba, abts_wqeq);
3306 spin_lock_irqsave(&ctxp->ctxlock, flags);
3307 ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
3308 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3312 /* Ready - mark outstanding as aborted by driver. */
3313 abts_wqeq->iocb_flag |= LPFC_DRIVER_ABORTED;
3315 lpfc_nvme_prep_abort_wqe(abts_wqeq, ctxp->wqeq->sli4_xritag, opt);
3317 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
3318 abts_wqeq->hba_wqidx = ctxp->wqeq->hba_wqidx;
3319 abts_wqeq->wqe_cmpl = lpfc_nvmet_sol_fcp_abort_cmp;
3320 abts_wqeq->iocb_cmpl = NULL;
3321 abts_wqeq->iocb_flag |= LPFC_IO_NVME;
3322 abts_wqeq->context2 = ctxp;
3323 abts_wqeq->vport = phba->pport;
3325 ctxp->hdwq = &phba->sli4_hba.hdwq[abts_wqeq->hba_wqidx];
3327 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, abts_wqeq);
3328 spin_unlock_irqrestore(&phba->hbalock, flags);
3329 if (rc == WQE_SUCCESS) {
3330 atomic_inc(&tgtp->xmt_abort_sol);
3334 atomic_inc(&tgtp->xmt_abort_rsp_error);
3335 spin_lock_irqsave(&ctxp->ctxlock, flags);
3336 ctxp->flag &= ~LPFC_NVMET_ABORT_OP;
3337 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3338 lpfc_sli_release_iocbq(phba, abts_wqeq);
3339 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
3340 "6166 Failed ABORT issue_wqe with status x%x "
3347 lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *phba,
3348 struct lpfc_nvmet_rcv_ctx *ctxp,
3349 uint32_t sid, uint16_t xri)
3351 struct lpfc_nvmet_tgtport *tgtp;
3352 struct lpfc_iocbq *abts_wqeq;
3353 unsigned long flags;
3354 bool released = false;
3357 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3359 ctxp->wqeq = ctxp->ctxbuf->iocbq;
3360 ctxp->wqeq->hba_wqidx = 0;
3363 if (ctxp->state == LPFC_NVMET_STE_FREE) {
3364 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
3365 "6417 NVMET ABORT ctx freed %d %d oxid x%x\n",
3366 ctxp->state, ctxp->entry_cnt, ctxp->oxid);
3370 ctxp->state = LPFC_NVMET_STE_ABORT;
3372 rc = lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri);
3376 spin_lock_irqsave(&phba->hbalock, flags);
3377 abts_wqeq = ctxp->wqeq;
3378 abts_wqeq->wqe_cmpl = lpfc_nvmet_unsol_fcp_abort_cmp;
3379 abts_wqeq->iocb_cmpl = NULL;
3380 abts_wqeq->iocb_flag |= LPFC_IO_NVMET;
3382 ctxp->hdwq = &phba->sli4_hba.hdwq[abts_wqeq->hba_wqidx];
3384 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, abts_wqeq);
3385 spin_unlock_irqrestore(&phba->hbalock, flags);
3386 if (rc == WQE_SUCCESS) {
3391 spin_lock_irqsave(&ctxp->ctxlock, flags);
3392 if (ctxp->flag & LPFC_NVMET_CTX_RLS) {
3393 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3394 list_del_init(&ctxp->list);
3395 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3398 ctxp->flag &= ~(LPFC_NVMET_ABORT_OP | LPFC_NVMET_CTX_RLS);
3399 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3401 atomic_inc(&tgtp->xmt_abort_rsp_error);
3402 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
3403 "6135 Failed to Issue ABTS for oxid x%x. Status x%x "
3405 ctxp->oxid, rc, released);
3407 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
3412 lpfc_nvmet_unsol_ls_issue_abort(struct lpfc_hba *phba,
3413 struct lpfc_nvmet_rcv_ctx *ctxp,
3414 uint32_t sid, uint16_t xri)
3416 struct lpfc_nvmet_tgtport *tgtp;
3417 struct lpfc_iocbq *abts_wqeq;
3418 unsigned long flags;
3421 if ((ctxp->state == LPFC_NVMET_STE_LS_RCV && ctxp->entry_cnt == 1) ||
3422 (ctxp->state == LPFC_NVMET_STE_LS_RSP && ctxp->entry_cnt == 2)) {
3423 ctxp->state = LPFC_NVMET_STE_LS_ABORT;
3426 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
3427 "6418 NVMET LS abort state mismatch "
3429 ctxp->oxid, ctxp->state, ctxp->entry_cnt);
3430 ctxp->state = LPFC_NVMET_STE_LS_ABORT;
3433 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3435 /* Issue ABTS for this WQE based on iotag */
3436 ctxp->wqeq = lpfc_sli_get_iocbq(phba);
3438 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
3439 "6068 Abort failed: No wqeqs: "
3441 /* No failure to an ABTS request. */
3446 abts_wqeq = ctxp->wqeq;
3448 if (lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri) == 0) {
3453 spin_lock_irqsave(&phba->hbalock, flags);
3454 abts_wqeq->wqe_cmpl = lpfc_nvmet_xmt_ls_abort_cmp;
3455 abts_wqeq->iocb_cmpl = NULL;
3456 abts_wqeq->iocb_flag |= LPFC_IO_NVME_LS;
3457 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, abts_wqeq);
3458 spin_unlock_irqrestore(&phba->hbalock, flags);
3459 if (rc == WQE_SUCCESS) {
3460 atomic_inc(&tgtp->xmt_abort_unsol);
3464 atomic_inc(&tgtp->xmt_abort_rsp_error);
3465 abts_wqeq->context2 = NULL;
3466 abts_wqeq->context3 = NULL;
3467 lpfc_sli_release_iocbq(phba, abts_wqeq);
3469 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_ABTS,
3470 "6056 Failed to Issue ABTS. Status x%x\n", rc);