1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 ********************************************************************/
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 "lpfc_version.h"
43 #include "lpfc_sli4.h"
45 #include "lpfc_disc.h"
47 #include "lpfc_scsi.h"
48 #include "lpfc_nvme.h"
49 #include "lpfc_logmsg.h"
50 #include "lpfc_crtn.h"
51 #include "lpfc_vport.h"
52 #include "lpfc_debugfs.h"
54 static struct lpfc_iocbq *lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *,
55 struct lpfc_async_xchg_ctx *,
58 static struct lpfc_iocbq *lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *,
59 struct lpfc_async_xchg_ctx *);
60 static int lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *,
61 struct lpfc_async_xchg_ctx *,
63 static int lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *,
64 struct lpfc_async_xchg_ctx *,
66 static void lpfc_nvmet_wqfull_flush(struct lpfc_hba *, struct lpfc_queue *,
67 struct lpfc_async_xchg_ctx *);
68 static void lpfc_nvmet_fcp_rqst_defer_work(struct work_struct *);
70 static void lpfc_nvmet_process_rcv_fcp_req(struct lpfc_nvmet_ctxbuf *ctx_buf);
72 static union lpfc_wqe128 lpfc_tsend_cmd_template;
73 static union lpfc_wqe128 lpfc_treceive_cmd_template;
74 static union lpfc_wqe128 lpfc_trsp_cmd_template;
76 /* Setup WQE templates for NVME IOs */
78 lpfc_nvmet_cmd_template(void)
80 union lpfc_wqe128 *wqe;
83 wqe = &lpfc_tsend_cmd_template;
84 memset(wqe, 0, sizeof(union lpfc_wqe128));
86 /* Word 0, 1, 2 - BDE is variable */
88 /* Word 3 - payload_offset_len is zero */
90 /* Word 4 - relative_offset is variable */
92 /* Word 5 - is zero */
94 /* Word 6 - ctxt_tag, xri_tag is variable */
96 /* Word 7 - wqe_ar is variable */
97 bf_set(wqe_cmnd, &wqe->fcp_tsend.wqe_com, CMD_FCP_TSEND64_WQE);
98 bf_set(wqe_pu, &wqe->fcp_tsend.wqe_com, PARM_REL_OFF);
99 bf_set(wqe_class, &wqe->fcp_tsend.wqe_com, CLASS3);
100 bf_set(wqe_ct, &wqe->fcp_tsend.wqe_com, SLI4_CT_RPI);
101 bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 1);
103 /* Word 8 - abort_tag is variable */
105 /* Word 9 - reqtag, rcvoxid is variable */
107 /* Word 10 - wqes, xc is variable */
108 bf_set(wqe_xchg, &wqe->fcp_tsend.wqe_com, LPFC_NVME_XCHG);
109 bf_set(wqe_dbde, &wqe->fcp_tsend.wqe_com, 1);
110 bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 0);
111 bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 1);
112 bf_set(wqe_iod, &wqe->fcp_tsend.wqe_com, LPFC_WQE_IOD_WRITE);
113 bf_set(wqe_lenloc, &wqe->fcp_tsend.wqe_com, LPFC_WQE_LENLOC_WORD12);
115 /* Word 11 - sup, irsp, irsplen is variable */
116 bf_set(wqe_cmd_type, &wqe->fcp_tsend.wqe_com, FCP_COMMAND_TSEND);
117 bf_set(wqe_cqid, &wqe->fcp_tsend.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
118 bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0);
119 bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 0);
120 bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com, 0);
121 bf_set(wqe_pbde, &wqe->fcp_tsend.wqe_com, 0);
123 /* Word 12 - fcp_data_len is variable */
125 /* Word 13, 14, 15 - PBDE is zero */
127 /* TRECEIVE template */
128 wqe = &lpfc_treceive_cmd_template;
129 memset(wqe, 0, sizeof(union lpfc_wqe128));
131 /* Word 0, 1, 2 - BDE is variable */
134 wqe->fcp_treceive.payload_offset_len = TXRDY_PAYLOAD_LEN;
136 /* Word 4 - relative_offset is variable */
138 /* Word 5 - is zero */
140 /* Word 6 - ctxt_tag, xri_tag is variable */
143 bf_set(wqe_cmnd, &wqe->fcp_treceive.wqe_com, CMD_FCP_TRECEIVE64_WQE);
144 bf_set(wqe_pu, &wqe->fcp_treceive.wqe_com, PARM_REL_OFF);
145 bf_set(wqe_class, &wqe->fcp_treceive.wqe_com, CLASS3);
146 bf_set(wqe_ct, &wqe->fcp_treceive.wqe_com, SLI4_CT_RPI);
147 bf_set(wqe_ar, &wqe->fcp_treceive.wqe_com, 0);
149 /* Word 8 - abort_tag is variable */
151 /* Word 9 - reqtag, rcvoxid is variable */
153 /* Word 10 - xc is variable */
154 bf_set(wqe_dbde, &wqe->fcp_treceive.wqe_com, 1);
155 bf_set(wqe_wqes, &wqe->fcp_treceive.wqe_com, 0);
156 bf_set(wqe_xchg, &wqe->fcp_treceive.wqe_com, LPFC_NVME_XCHG);
157 bf_set(wqe_iod, &wqe->fcp_treceive.wqe_com, LPFC_WQE_IOD_READ);
158 bf_set(wqe_lenloc, &wqe->fcp_treceive.wqe_com, LPFC_WQE_LENLOC_WORD12);
159 bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 1);
161 /* Word 11 - pbde is variable */
162 bf_set(wqe_cmd_type, &wqe->fcp_treceive.wqe_com, FCP_COMMAND_TRECEIVE);
163 bf_set(wqe_cqid, &wqe->fcp_treceive.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
164 bf_set(wqe_sup, &wqe->fcp_treceive.wqe_com, 0);
165 bf_set(wqe_irsp, &wqe->fcp_treceive.wqe_com, 0);
166 bf_set(wqe_irsplen, &wqe->fcp_treceive.wqe_com, 0);
167 bf_set(wqe_pbde, &wqe->fcp_treceive.wqe_com, 1);
169 /* Word 12 - fcp_data_len is variable */
171 /* Word 13, 14, 15 - PBDE is variable */
174 wqe = &lpfc_trsp_cmd_template;
175 memset(wqe, 0, sizeof(union lpfc_wqe128));
177 /* Word 0, 1, 2 - BDE is variable */
179 /* Word 3 - response_len is variable */
181 /* Word 4, 5 - is zero */
183 /* Word 6 - ctxt_tag, xri_tag is variable */
186 bf_set(wqe_cmnd, &wqe->fcp_trsp.wqe_com, CMD_FCP_TRSP64_WQE);
187 bf_set(wqe_pu, &wqe->fcp_trsp.wqe_com, PARM_UNUSED);
188 bf_set(wqe_class, &wqe->fcp_trsp.wqe_com, CLASS3);
189 bf_set(wqe_ct, &wqe->fcp_trsp.wqe_com, SLI4_CT_RPI);
190 bf_set(wqe_ag, &wqe->fcp_trsp.wqe_com, 1); /* wqe_ar */
192 /* Word 8 - abort_tag is variable */
194 /* Word 9 - reqtag is variable */
196 /* Word 10 wqes, xc is variable */
197 bf_set(wqe_dbde, &wqe->fcp_trsp.wqe_com, 1);
198 bf_set(wqe_xchg, &wqe->fcp_trsp.wqe_com, LPFC_NVME_XCHG);
199 bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 0);
200 bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, 0);
201 bf_set(wqe_iod, &wqe->fcp_trsp.wqe_com, LPFC_WQE_IOD_NONE);
202 bf_set(wqe_lenloc, &wqe->fcp_trsp.wqe_com, LPFC_WQE_LENLOC_WORD3);
204 /* Word 11 irsp, irsplen is variable */
205 bf_set(wqe_cmd_type, &wqe->fcp_trsp.wqe_com, FCP_COMMAND_TRSP);
206 bf_set(wqe_cqid, &wqe->fcp_trsp.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
207 bf_set(wqe_sup, &wqe->fcp_trsp.wqe_com, 0);
208 bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 0);
209 bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com, 0);
210 bf_set(wqe_pbde, &wqe->fcp_trsp.wqe_com, 0);
212 /* Word 12, 13, 14, 15 - is zero */
215 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
216 static struct lpfc_async_xchg_ctx *
217 lpfc_nvmet_get_ctx_for_xri(struct lpfc_hba *phba, u16 xri)
219 struct lpfc_async_xchg_ctx *ctxp;
223 spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
224 list_for_each_entry(ctxp, &phba->sli4_hba.t_active_ctx_list, list) {
225 if (ctxp->ctxbuf->sglq->sli4_xritag != xri)
231 spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
238 static struct lpfc_async_xchg_ctx *
239 lpfc_nvmet_get_ctx_for_oxid(struct lpfc_hba *phba, u16 oxid, u32 sid)
241 struct lpfc_async_xchg_ctx *ctxp;
245 spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
246 list_for_each_entry(ctxp, &phba->sli4_hba.t_active_ctx_list, list) {
247 if (ctxp->oxid != oxid || ctxp->sid != sid)
253 spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
262 lpfc_nvmet_defer_release(struct lpfc_hba *phba,
263 struct lpfc_async_xchg_ctx *ctxp)
265 lockdep_assert_held(&ctxp->ctxlock);
267 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
268 "6313 NVMET Defer ctx release oxid x%x flg x%x\n",
269 ctxp->oxid, ctxp->flag);
271 if (ctxp->flag & LPFC_NVME_CTX_RLS)
274 ctxp->flag |= LPFC_NVME_CTX_RLS;
275 spin_lock(&phba->sli4_hba.t_active_list_lock);
276 list_del(&ctxp->list);
277 spin_unlock(&phba->sli4_hba.t_active_list_lock);
278 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
279 list_add_tail(&ctxp->list, &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
280 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
284 * __lpfc_nvme_xmt_ls_rsp_cmp - Generic completion handler for the
285 * transmission of an NVME LS response.
286 * @phba: Pointer to HBA context object.
287 * @cmdwqe: Pointer to driver command WQE object.
288 * @wcqe: Pointer to driver response CQE object.
290 * The function is called from SLI ring event handler with no
291 * lock held. The function frees memory resources used for the command
292 * used to send the NVME LS RSP.
295 __lpfc_nvme_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
296 struct lpfc_wcqe_complete *wcqe)
298 struct lpfc_async_xchg_ctx *axchg = cmdwqe->context2;
299 struct nvmefc_ls_rsp *ls_rsp = &axchg->ls_rsp;
300 uint32_t status, result;
302 status = bf_get(lpfc_wcqe_c_status, wcqe) & LPFC_IOCB_STATUS_MASK;
303 result = wcqe->parameter;
305 if (axchg->state != LPFC_NVME_STE_LS_RSP || axchg->entry_cnt != 2) {
306 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
307 "6410 NVMEx LS cmpl state mismatch IO x%x: "
309 axchg->oxid, axchg->state, axchg->entry_cnt);
312 lpfc_nvmeio_data(phba, "NVMEx LS CMPL: xri x%x stat x%x result x%x\n",
313 axchg->oxid, status, result);
315 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
316 "6038 NVMEx LS rsp cmpl: %d %d oxid x%x\n",
317 status, result, axchg->oxid);
319 lpfc_nlp_put(cmdwqe->context1);
320 cmdwqe->context2 = NULL;
321 cmdwqe->context3 = NULL;
322 lpfc_sli_release_iocbq(phba, cmdwqe);
323 ls_rsp->done(ls_rsp);
324 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
325 "6200 NVMEx LS rsp cmpl done status %d oxid x%x\n",
326 status, axchg->oxid);
331 * lpfc_nvmet_xmt_ls_rsp_cmp - Completion handler for LS Response
332 * @phba: Pointer to HBA context object.
333 * @cmdwqe: Pointer to driver command WQE object.
334 * @wcqe: Pointer to driver response CQE object.
336 * The function is called from SLI ring event handler with no
337 * lock held. This function is the completion handler for NVME LS commands
338 * The function updates any states and statistics, then calls the
339 * generic completion handler to free resources.
342 lpfc_nvmet_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
343 struct lpfc_wcqe_complete *wcqe)
345 struct lpfc_nvmet_tgtport *tgtp;
346 uint32_t status, result;
348 if (!phba->targetport)
351 status = bf_get(lpfc_wcqe_c_status, wcqe) & LPFC_IOCB_STATUS_MASK;
352 result = wcqe->parameter;
354 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
357 atomic_inc(&tgtp->xmt_ls_rsp_error);
358 if (result == IOERR_ABORT_REQUESTED)
359 atomic_inc(&tgtp->xmt_ls_rsp_aborted);
360 if (bf_get(lpfc_wcqe_c_xb, wcqe))
361 atomic_inc(&tgtp->xmt_ls_rsp_xb_set);
363 atomic_inc(&tgtp->xmt_ls_rsp_cmpl);
368 __lpfc_nvme_xmt_ls_rsp_cmp(phba, cmdwqe, wcqe);
372 * lpfc_nvmet_ctxbuf_post - Repost a NVMET RQ DMA buffer and clean up context
373 * @phba: HBA buffer is associated with
374 * @ctx_buf: ctx buffer context
376 * Description: Frees the given DMA buffer in the appropriate way given by
377 * reposting it to its associated RQ so it can be reused.
379 * Notes: Takes phba->hbalock. Can be called with or without other locks held.
384 lpfc_nvmet_ctxbuf_post(struct lpfc_hba *phba, struct lpfc_nvmet_ctxbuf *ctx_buf)
386 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
387 struct lpfc_async_xchg_ctx *ctxp = ctx_buf->context;
388 struct lpfc_nvmet_tgtport *tgtp;
389 struct fc_frame_header *fc_hdr;
390 struct rqb_dmabuf *nvmebuf;
391 struct lpfc_nvmet_ctx_info *infop;
392 uint32_t size, oxid, sid;
396 if (ctxp->state == LPFC_NVME_STE_FREE) {
397 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
398 "6411 NVMET free, already free IO x%x: %d %d\n",
399 ctxp->oxid, ctxp->state, ctxp->entry_cnt);
402 if (ctxp->rqb_buffer) {
403 spin_lock_irqsave(&ctxp->ctxlock, iflag);
404 nvmebuf = ctxp->rqb_buffer;
405 /* check if freed in another path whilst acquiring lock */
407 ctxp->rqb_buffer = NULL;
408 if (ctxp->flag & LPFC_NVME_CTX_REUSE_WQ) {
409 ctxp->flag &= ~LPFC_NVME_CTX_REUSE_WQ;
410 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
411 nvmebuf->hrq->rqbp->rqb_free_buffer(phba,
414 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
416 lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
419 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
422 ctxp->state = LPFC_NVME_STE_FREE;
424 spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
425 if (phba->sli4_hba.nvmet_io_wait_cnt) {
426 list_remove_head(&phba->sli4_hba.lpfc_nvmet_io_wait_list,
427 nvmebuf, struct rqb_dmabuf,
429 phba->sli4_hba.nvmet_io_wait_cnt--;
430 spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
433 fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
434 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
435 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
436 size = nvmebuf->bytes_recv;
437 sid = sli4_sid_from_fc_hdr(fc_hdr);
439 ctxp = (struct lpfc_async_xchg_ctx *)ctx_buf->context;
446 ctxp->state = LPFC_NVME_STE_RCV;
449 ctxp->ctxbuf = ctx_buf;
450 ctxp->rqb_buffer = (void *)nvmebuf;
451 spin_lock_init(&ctxp->ctxlock);
453 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
454 /* NOTE: isr time stamp is stale when context is re-assigned*/
455 if (ctxp->ts_isr_cmd) {
456 ctxp->ts_cmd_nvme = 0;
457 ctxp->ts_nvme_data = 0;
458 ctxp->ts_data_wqput = 0;
459 ctxp->ts_isr_data = 0;
460 ctxp->ts_data_nvme = 0;
461 ctxp->ts_nvme_status = 0;
462 ctxp->ts_status_wqput = 0;
463 ctxp->ts_isr_status = 0;
464 ctxp->ts_status_nvme = 0;
467 atomic_inc(&tgtp->rcv_fcp_cmd_in);
469 /* Indicate that a replacement buffer has been posted */
470 spin_lock_irqsave(&ctxp->ctxlock, iflag);
471 ctxp->flag |= LPFC_NVME_CTX_REUSE_WQ;
472 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
474 if (!queue_work(phba->wq, &ctx_buf->defer_work)) {
475 atomic_inc(&tgtp->rcv_fcp_cmd_drop);
476 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
477 "6181 Unable to queue deferred work "
479 "FCP Drop IO [x%x x%x x%x]\n",
481 atomic_read(&tgtp->rcv_fcp_cmd_in),
482 atomic_read(&tgtp->rcv_fcp_cmd_out),
483 atomic_read(&tgtp->xmt_fcp_release));
485 spin_lock_irqsave(&ctxp->ctxlock, iflag);
486 lpfc_nvmet_defer_release(phba, ctxp);
487 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
488 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid);
492 spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
495 * Use the CPU context list, from the MRQ the IO was received on
496 * (ctxp->idx), to save context structure.
498 spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
499 list_del_init(&ctxp->list);
500 spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
501 cpu = raw_smp_processor_id();
502 infop = lpfc_get_ctx_list(phba, cpu, ctxp->idx);
503 spin_lock_irqsave(&infop->nvmet_ctx_list_lock, iflag);
504 list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list);
505 infop->nvmet_ctx_list_cnt++;
506 spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, iflag);
510 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
512 lpfc_nvmet_ktime(struct lpfc_hba *phba,
513 struct lpfc_async_xchg_ctx *ctxp)
515 uint64_t seg1, seg2, seg3, seg4, seg5;
516 uint64_t seg6, seg7, seg8, seg9, seg10;
519 if (!ctxp->ts_isr_cmd || !ctxp->ts_cmd_nvme ||
520 !ctxp->ts_nvme_data || !ctxp->ts_data_wqput ||
521 !ctxp->ts_isr_data || !ctxp->ts_data_nvme ||
522 !ctxp->ts_nvme_status || !ctxp->ts_status_wqput ||
523 !ctxp->ts_isr_status || !ctxp->ts_status_nvme)
526 if (ctxp->ts_status_nvme < ctxp->ts_isr_cmd)
528 if (ctxp->ts_isr_cmd > ctxp->ts_cmd_nvme)
530 if (ctxp->ts_cmd_nvme > ctxp->ts_nvme_data)
532 if (ctxp->ts_nvme_data > ctxp->ts_data_wqput)
534 if (ctxp->ts_data_wqput > ctxp->ts_isr_data)
536 if (ctxp->ts_isr_data > ctxp->ts_data_nvme)
538 if (ctxp->ts_data_nvme > ctxp->ts_nvme_status)
540 if (ctxp->ts_nvme_status > ctxp->ts_status_wqput)
542 if (ctxp->ts_status_wqput > ctxp->ts_isr_status)
544 if (ctxp->ts_isr_status > ctxp->ts_status_nvme)
547 * Segment 1 - Time from FCP command received by MSI-X ISR
548 * to FCP command is passed to NVME Layer.
549 * Segment 2 - Time from FCP command payload handed
550 * off to NVME Layer to Driver receives a Command op
552 * Segment 3 - Time from Driver receives a Command op
553 * from NVME Layer to Command is put on WQ.
554 * Segment 4 - Time from Driver WQ put is done
555 * to MSI-X ISR for Command cmpl.
556 * Segment 5 - Time from MSI-X ISR for Command cmpl to
557 * Command cmpl is passed to NVME Layer.
558 * Segment 6 - Time from Command cmpl is passed to NVME
559 * Layer to Driver receives a RSP op from NVME Layer.
560 * Segment 7 - Time from Driver receives a RSP op from
561 * NVME Layer to WQ put is done on TRSP FCP Status.
562 * Segment 8 - Time from Driver WQ put is done on TRSP
563 * FCP Status to MSI-X ISR for TRSP cmpl.
564 * Segment 9 - Time from MSI-X ISR for TRSP cmpl to
565 * TRSP cmpl is passed to NVME Layer.
566 * Segment 10 - Time from FCP command received by
567 * MSI-X ISR to command is completed on wire.
568 * (Segments 1 thru 8) for READDATA / WRITEDATA
569 * (Segments 1 thru 4) for READDATA_RSP
571 seg1 = ctxp->ts_cmd_nvme - ctxp->ts_isr_cmd;
574 seg2 = ctxp->ts_nvme_data - ctxp->ts_isr_cmd;
580 seg3 = ctxp->ts_data_wqput - ctxp->ts_isr_cmd;
586 seg4 = ctxp->ts_isr_data - ctxp->ts_isr_cmd;
592 seg5 = ctxp->ts_data_nvme - ctxp->ts_isr_cmd;
599 /* For auto rsp commands seg6 thru seg10 will be 0 */
600 if (ctxp->ts_nvme_status > ctxp->ts_data_nvme) {
601 seg6 = ctxp->ts_nvme_status - ctxp->ts_isr_cmd;
607 seg7 = ctxp->ts_status_wqput - ctxp->ts_isr_cmd;
613 seg8 = ctxp->ts_isr_status - ctxp->ts_isr_cmd;
619 seg9 = ctxp->ts_status_nvme - ctxp->ts_isr_cmd;
625 if (ctxp->ts_isr_status < ctxp->ts_isr_cmd)
627 seg10 = (ctxp->ts_isr_status -
630 if (ctxp->ts_isr_data < ctxp->ts_isr_cmd)
636 seg10 = (ctxp->ts_isr_data - ctxp->ts_isr_cmd);
639 phba->ktime_seg1_total += seg1;
640 if (seg1 < phba->ktime_seg1_min)
641 phba->ktime_seg1_min = seg1;
642 else if (seg1 > phba->ktime_seg1_max)
643 phba->ktime_seg1_max = seg1;
645 phba->ktime_seg2_total += seg2;
646 if (seg2 < phba->ktime_seg2_min)
647 phba->ktime_seg2_min = seg2;
648 else if (seg2 > phba->ktime_seg2_max)
649 phba->ktime_seg2_max = seg2;
651 phba->ktime_seg3_total += seg3;
652 if (seg3 < phba->ktime_seg3_min)
653 phba->ktime_seg3_min = seg3;
654 else if (seg3 > phba->ktime_seg3_max)
655 phba->ktime_seg3_max = seg3;
657 phba->ktime_seg4_total += seg4;
658 if (seg4 < phba->ktime_seg4_min)
659 phba->ktime_seg4_min = seg4;
660 else if (seg4 > phba->ktime_seg4_max)
661 phba->ktime_seg4_max = seg4;
663 phba->ktime_seg5_total += seg5;
664 if (seg5 < phba->ktime_seg5_min)
665 phba->ktime_seg5_min = seg5;
666 else if (seg5 > phba->ktime_seg5_max)
667 phba->ktime_seg5_max = seg5;
669 phba->ktime_data_samples++;
673 phba->ktime_seg6_total += seg6;
674 if (seg6 < phba->ktime_seg6_min)
675 phba->ktime_seg6_min = seg6;
676 else if (seg6 > phba->ktime_seg6_max)
677 phba->ktime_seg6_max = seg6;
679 phba->ktime_seg7_total += seg7;
680 if (seg7 < phba->ktime_seg7_min)
681 phba->ktime_seg7_min = seg7;
682 else if (seg7 > phba->ktime_seg7_max)
683 phba->ktime_seg7_max = seg7;
685 phba->ktime_seg8_total += seg8;
686 if (seg8 < phba->ktime_seg8_min)
687 phba->ktime_seg8_min = seg8;
688 else if (seg8 > phba->ktime_seg8_max)
689 phba->ktime_seg8_max = seg8;
691 phba->ktime_seg9_total += seg9;
692 if (seg9 < phba->ktime_seg9_min)
693 phba->ktime_seg9_min = seg9;
694 else if (seg9 > phba->ktime_seg9_max)
695 phba->ktime_seg9_max = seg9;
697 phba->ktime_seg10_total += seg10;
698 if (seg10 < phba->ktime_seg10_min)
699 phba->ktime_seg10_min = seg10;
700 else if (seg10 > phba->ktime_seg10_max)
701 phba->ktime_seg10_max = seg10;
702 phba->ktime_status_samples++;
707 * lpfc_nvmet_xmt_fcp_op_cmp - Completion handler for FCP Response
708 * @phba: Pointer to HBA context object.
709 * @cmdwqe: Pointer to driver command WQE object.
710 * @wcqe: Pointer to driver response CQE object.
712 * The function is called from SLI ring event handler with no
713 * lock held. This function is the completion handler for NVME FCP commands
714 * The function frees memory resources used for the NVME commands.
717 lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
718 struct lpfc_wcqe_complete *wcqe)
720 struct lpfc_nvmet_tgtport *tgtp;
721 struct nvmefc_tgt_fcp_req *rsp;
722 struct lpfc_async_xchg_ctx *ctxp;
723 uint32_t status, result, op, start_clean, logerr;
724 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
728 ctxp = cmdwqe->context2;
729 ctxp->flag &= ~LPFC_NVME_IO_INP;
731 rsp = &ctxp->hdlrctx.fcp_req;
734 status = bf_get(lpfc_wcqe_c_status, wcqe);
735 result = wcqe->parameter;
737 if (phba->targetport)
738 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
742 lpfc_nvmeio_data(phba, "NVMET FCP CMPL: xri x%x op x%x status x%x\n",
743 ctxp->oxid, op, status);
746 rsp->fcp_error = NVME_SC_DATA_XFER_ERROR;
747 rsp->transferred_length = 0;
749 atomic_inc(&tgtp->xmt_fcp_rsp_error);
750 if (result == IOERR_ABORT_REQUESTED)
751 atomic_inc(&tgtp->xmt_fcp_rsp_aborted);
754 logerr = LOG_NVME_IOERR;
756 /* pick up SLI4 exhange busy condition */
757 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
758 ctxp->flag |= LPFC_NVME_XBUSY;
759 logerr |= LOG_NVME_ABTS;
761 atomic_inc(&tgtp->xmt_fcp_rsp_xb_set);
764 ctxp->flag &= ~LPFC_NVME_XBUSY;
767 lpfc_printf_log(phba, KERN_INFO, logerr,
768 "6315 IO Error Cmpl oxid: x%x xri: x%x %x/%x "
770 ctxp->oxid, ctxp->ctxbuf->sglq->sli4_xritag,
771 status, result, ctxp->flag);
774 rsp->fcp_error = NVME_SC_SUCCESS;
775 if (op == NVMET_FCOP_RSP)
776 rsp->transferred_length = rsp->rsplen;
778 rsp->transferred_length = rsp->transfer_length;
780 atomic_inc(&tgtp->xmt_fcp_rsp_cmpl);
783 if ((op == NVMET_FCOP_READDATA_RSP) ||
784 (op == NVMET_FCOP_RSP)) {
786 ctxp->state = LPFC_NVME_STE_DONE;
789 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
790 if (ctxp->ts_cmd_nvme) {
791 if (rsp->op == NVMET_FCOP_READDATA_RSP) {
793 cmdwqe->isr_timestamp;
796 ctxp->ts_nvme_status =
798 ctxp->ts_status_wqput =
800 ctxp->ts_isr_status =
802 ctxp->ts_status_nvme =
805 ctxp->ts_isr_status =
806 cmdwqe->isr_timestamp;
807 ctxp->ts_status_nvme =
813 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
814 if (ctxp->ts_cmd_nvme)
815 lpfc_nvmet_ktime(phba, ctxp);
817 /* lpfc_nvmet_xmt_fcp_release() will recycle the context */
820 start_clean = offsetof(struct lpfc_iocbq, iocb_flag);
821 memset(((char *)cmdwqe) + start_clean, 0,
822 (sizeof(struct lpfc_iocbq) - start_clean));
823 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
824 if (ctxp->ts_cmd_nvme) {
825 ctxp->ts_isr_data = cmdwqe->isr_timestamp;
826 ctxp->ts_data_nvme = ktime_get_ns();
831 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
832 if (phba->hdwqstat_on & LPFC_CHECK_NVMET_IO) {
833 id = raw_smp_processor_id();
834 this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io);
836 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
837 "6704 CPU Check cmdcmpl: "
838 "cpu %d expect %d\n",
845 * __lpfc_nvme_xmt_ls_rsp - Generic service routine to issue transmit
846 * an NVME LS rsp for a prior NVME LS request that was received.
847 * @axchg: pointer to exchange context for the NVME LS request the response
849 * @ls_rsp: pointer to the transport LS RSP that is to be sent
850 * @xmt_ls_rsp_cmp: completion routine to call upon RSP transmit done
852 * This routine is used to format and send a WQE to transmit a NVME LS
853 * Response. The response is for a prior NVME LS request that was
854 * received and posted to the transport.
857 * 0 : if response successfully transmit
858 * non-zero : if response failed to transmit, of the form -Exxx.
861 __lpfc_nvme_xmt_ls_rsp(struct lpfc_async_xchg_ctx *axchg,
862 struct nvmefc_ls_rsp *ls_rsp,
863 void (*xmt_ls_rsp_cmp)(struct lpfc_hba *phba,
864 struct lpfc_iocbq *cmdwqe,
865 struct lpfc_wcqe_complete *wcqe))
867 struct lpfc_hba *phba = axchg->phba;
868 struct hbq_dmabuf *nvmebuf = (struct hbq_dmabuf *)axchg->rqb_buffer;
869 struct lpfc_iocbq *nvmewqeq;
870 struct lpfc_dmabuf dmabuf;
871 struct ulp_bde64 bpl;
874 if (phba->pport->load_flag & FC_UNLOADING)
877 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
878 "6023 NVMEx LS rsp oxid x%x\n", axchg->oxid);
880 if (axchg->state != LPFC_NVME_STE_LS_RCV || axchg->entry_cnt != 1) {
881 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
882 "6412 NVMEx LS rsp state mismatch "
884 axchg->oxid, axchg->state, axchg->entry_cnt);
887 axchg->state = LPFC_NVME_STE_LS_RSP;
890 nvmewqeq = lpfc_nvmet_prep_ls_wqe(phba, axchg, ls_rsp->rspdma,
892 if (nvmewqeq == NULL) {
893 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
894 "6150 NVMEx LS Drop Rsp x%x: Prep\n",
900 /* Save numBdes for bpl2sgl */
902 nvmewqeq->hba_wqidx = 0;
903 nvmewqeq->context3 = &dmabuf;
905 bpl.addrLow = nvmewqeq->wqe.xmit_sequence.bde.addrLow;
906 bpl.addrHigh = nvmewqeq->wqe.xmit_sequence.bde.addrHigh;
907 bpl.tus.f.bdeSize = ls_rsp->rsplen;
908 bpl.tus.f.bdeFlags = 0;
909 bpl.tus.w = le32_to_cpu(bpl.tus.w);
911 * Note: although we're using stack space for the dmabuf, the
912 * call to lpfc_sli4_issue_wqe is synchronous, so it will not
913 * be referenced after it returns back to this routine.
916 nvmewqeq->wqe_cmpl = xmt_ls_rsp_cmp;
917 nvmewqeq->iocb_cmpl = NULL;
918 nvmewqeq->context2 = axchg;
920 lpfc_nvmeio_data(phba, "NVMEx LS RSP: xri x%x wqidx x%x len x%x\n",
921 axchg->oxid, nvmewqeq->hba_wqidx, ls_rsp->rsplen);
923 rc = lpfc_sli4_issue_wqe(phba, axchg->hdwq, nvmewqeq);
925 /* clear to be sure there's no reference */
926 nvmewqeq->context3 = NULL;
928 if (rc == WQE_SUCCESS) {
930 * Okay to repost buffer here, but wait till cmpl
931 * before freeing ctxp and iocbq.
933 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
937 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
938 "6151 NVMEx LS RSP x%x: failed to transmit %d\n",
943 lpfc_nlp_put(nvmewqeq->context1);
946 /* Give back resources */
947 lpfc_in_buf_free(phba, &nvmebuf->dbuf);
950 * As transport doesn't track completions of responses, if the rsp
951 * fails to send, the transport will effectively ignore the rsp
952 * and consider the LS done. However, the driver has an active
953 * exchange open for the LS - so be sure to abort the exchange
954 * if the response isn't sent.
956 lpfc_nvme_unsol_ls_issue_abort(phba, axchg, axchg->sid, axchg->oxid);
961 * lpfc_nvmet_xmt_ls_rsp - Transmit NVME LS response
962 * @tgtport: pointer to target port that NVME LS is to be transmit from.
963 * @ls_rsp: pointer to the transport LS RSP that is to be sent
965 * Driver registers this routine to transmit responses for received NVME
968 * This routine is used to format and send a WQE to transmit a NVME LS
969 * Response. The ls_rsp is used to reverse-map the LS to the original
970 * NVME LS request sequence, which provides addressing information for
971 * the remote port the LS to be sent to, as well as the exchange id
972 * that is the LS is bound to.
975 * 0 : if response successfully transmit
976 * non-zero : if response failed to transmit, of the form -Exxx.
979 lpfc_nvmet_xmt_ls_rsp(struct nvmet_fc_target_port *tgtport,
980 struct nvmefc_ls_rsp *ls_rsp)
982 struct lpfc_async_xchg_ctx *axchg =
983 container_of(ls_rsp, struct lpfc_async_xchg_ctx, ls_rsp);
984 struct lpfc_nvmet_tgtport *nvmep = tgtport->private;
987 if (axchg->phba->pport->load_flag & FC_UNLOADING)
990 rc = __lpfc_nvme_xmt_ls_rsp(axchg, ls_rsp, lpfc_nvmet_xmt_ls_rsp_cmp);
993 atomic_inc(&nvmep->xmt_ls_drop);
995 * unless the failure is due to having already sent
996 * the response, an abort will be generated for the
997 * exchange if the rsp can't be sent.
1000 atomic_inc(&nvmep->xmt_ls_abort);
1004 atomic_inc(&nvmep->xmt_ls_rsp);
1009 lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport,
1010 struct nvmefc_tgt_fcp_req *rsp)
1012 struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
1013 struct lpfc_async_xchg_ctx *ctxp =
1014 container_of(rsp, struct lpfc_async_xchg_ctx, hdlrctx.fcp_req);
1015 struct lpfc_hba *phba = ctxp->phba;
1016 struct lpfc_queue *wq;
1017 struct lpfc_iocbq *nvmewqeq;
1018 struct lpfc_sli_ring *pring;
1019 unsigned long iflags;
1021 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1025 if (phba->pport->load_flag & FC_UNLOADING) {
1030 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1031 if (ctxp->ts_cmd_nvme) {
1032 if (rsp->op == NVMET_FCOP_RSP)
1033 ctxp->ts_nvme_status = ktime_get_ns();
1035 ctxp->ts_nvme_data = ktime_get_ns();
1038 /* Setup the hdw queue if not already set */
1040 ctxp->hdwq = &phba->sli4_hba.hdwq[rsp->hwqid];
1042 if (phba->hdwqstat_on & LPFC_CHECK_NVMET_IO) {
1043 id = raw_smp_processor_id();
1044 this_cpu_inc(phba->sli4_hba.c_stat->xmt_io);
1045 if (rsp->hwqid != id)
1046 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
1047 "6705 CPU Check OP: "
1048 "cpu %d expect %d\n",
1050 ctxp->cpu = id; /* Setup cpu for cmpl check */
1055 if ((ctxp->flag & LPFC_NVME_ABTS_RCV) ||
1056 (ctxp->state == LPFC_NVME_STE_ABORT)) {
1057 atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
1058 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1059 "6102 IO oxid x%x aborted\n",
1065 nvmewqeq = lpfc_nvmet_prep_fcp_wqe(phba, ctxp);
1066 if (nvmewqeq == NULL) {
1067 atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
1068 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1069 "6152 FCP Drop IO x%x: Prep\n",
1075 nvmewqeq->wqe_cmpl = lpfc_nvmet_xmt_fcp_op_cmp;
1076 nvmewqeq->iocb_cmpl = NULL;
1077 nvmewqeq->context2 = ctxp;
1078 nvmewqeq->iocb_flag |= LPFC_IO_NVMET;
1079 ctxp->wqeq->hba_wqidx = rsp->hwqid;
1081 lpfc_nvmeio_data(phba, "NVMET FCP CMND: xri x%x op x%x len x%x\n",
1082 ctxp->oxid, rsp->op, rsp->rsplen);
1084 ctxp->flag |= LPFC_NVME_IO_INP;
1085 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, nvmewqeq);
1086 if (rc == WQE_SUCCESS) {
1087 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1088 if (!ctxp->ts_cmd_nvme)
1090 if (rsp->op == NVMET_FCOP_RSP)
1091 ctxp->ts_status_wqput = ktime_get_ns();
1093 ctxp->ts_data_wqput = ktime_get_ns();
1100 * WQ was full, so queue nvmewqeq to be sent after
1103 ctxp->flag |= LPFC_NVME_DEFER_WQFULL;
1104 wq = ctxp->hdwq->io_wq;
1106 spin_lock_irqsave(&pring->ring_lock, iflags);
1107 list_add_tail(&nvmewqeq->list, &wq->wqfull_list);
1108 wq->q_flag |= HBA_NVMET_WQFULL;
1109 spin_unlock_irqrestore(&pring->ring_lock, iflags);
1110 atomic_inc(&lpfc_nvmep->defer_wqfull);
1114 /* Give back resources */
1115 atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
1116 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1117 "6153 FCP Drop IO x%x: Issue: %d\n",
1120 ctxp->wqeq->hba_wqidx = 0;
1121 nvmewqeq->context2 = NULL;
1122 nvmewqeq->context3 = NULL;
1129 lpfc_nvmet_targetport_delete(struct nvmet_fc_target_port *targetport)
1131 struct lpfc_nvmet_tgtport *tport = targetport->private;
1133 /* release any threads waiting for the unreg to complete */
1134 if (tport->phba->targetport)
1135 complete(tport->tport_unreg_cmp);
1139 lpfc_nvmet_xmt_fcp_abort(struct nvmet_fc_target_port *tgtport,
1140 struct nvmefc_tgt_fcp_req *req)
1142 struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
1143 struct lpfc_async_xchg_ctx *ctxp =
1144 container_of(req, struct lpfc_async_xchg_ctx, hdlrctx.fcp_req);
1145 struct lpfc_hba *phba = ctxp->phba;
1146 struct lpfc_queue *wq;
1147 unsigned long flags;
1149 if (phba->pport->load_flag & FC_UNLOADING)
1153 ctxp->hdwq = &phba->sli4_hba.hdwq[0];
1155 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1156 "6103 NVMET Abort op: oxid x%x flg x%x ste %d\n",
1157 ctxp->oxid, ctxp->flag, ctxp->state);
1159 lpfc_nvmeio_data(phba, "NVMET FCP ABRT: xri x%x flg x%x ste x%x\n",
1160 ctxp->oxid, ctxp->flag, ctxp->state);
1162 atomic_inc(&lpfc_nvmep->xmt_fcp_abort);
1164 spin_lock_irqsave(&ctxp->ctxlock, flags);
1166 /* Since iaab/iaar are NOT set, we need to check
1167 * if the firmware is in process of aborting IO
1169 if (ctxp->flag & (LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP)) {
1170 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
1173 ctxp->flag |= LPFC_NVME_ABORT_OP;
1175 if (ctxp->flag & LPFC_NVME_DEFER_WQFULL) {
1176 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
1177 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
1179 wq = ctxp->hdwq->io_wq;
1180 lpfc_nvmet_wqfull_flush(phba, wq, ctxp);
1183 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
1185 /* A state of LPFC_NVME_STE_RCV means we have just received
1186 * the NVME command and have not started processing it.
1187 * (by issuing any IO WQEs on this exchange yet)
1189 if (ctxp->state == LPFC_NVME_STE_RCV)
1190 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
1193 lpfc_nvmet_sol_fcp_issue_abort(phba, ctxp, ctxp->sid,
1198 lpfc_nvmet_xmt_fcp_release(struct nvmet_fc_target_port *tgtport,
1199 struct nvmefc_tgt_fcp_req *rsp)
1201 struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
1202 struct lpfc_async_xchg_ctx *ctxp =
1203 container_of(rsp, struct lpfc_async_xchg_ctx, hdlrctx.fcp_req);
1204 struct lpfc_hba *phba = ctxp->phba;
1205 unsigned long flags;
1206 bool aborting = false;
1208 spin_lock_irqsave(&ctxp->ctxlock, flags);
1209 if (ctxp->flag & LPFC_NVME_XBUSY)
1210 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
1211 "6027 NVMET release with XBUSY flag x%x"
1213 ctxp->flag, ctxp->oxid);
1214 else if (ctxp->state != LPFC_NVME_STE_DONE &&
1215 ctxp->state != LPFC_NVME_STE_ABORT)
1216 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1217 "6413 NVMET release bad state %d %d oxid x%x\n",
1218 ctxp->state, ctxp->entry_cnt, ctxp->oxid);
1220 if ((ctxp->flag & LPFC_NVME_ABORT_OP) ||
1221 (ctxp->flag & LPFC_NVME_XBUSY)) {
1223 /* let the abort path do the real release */
1224 lpfc_nvmet_defer_release(phba, ctxp);
1226 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
1228 lpfc_nvmeio_data(phba, "NVMET FCP FREE: xri x%x ste %d abt %d\n", ctxp->oxid,
1229 ctxp->state, aborting);
1231 atomic_inc(&lpfc_nvmep->xmt_fcp_release);
1232 ctxp->flag &= ~LPFC_NVME_TNOTIFY;
1237 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1241 lpfc_nvmet_defer_rcv(struct nvmet_fc_target_port *tgtport,
1242 struct nvmefc_tgt_fcp_req *rsp)
1244 struct lpfc_nvmet_tgtport *tgtp;
1245 struct lpfc_async_xchg_ctx *ctxp =
1246 container_of(rsp, struct lpfc_async_xchg_ctx, hdlrctx.fcp_req);
1247 struct rqb_dmabuf *nvmebuf = ctxp->rqb_buffer;
1248 struct lpfc_hba *phba = ctxp->phba;
1249 unsigned long iflag;
1252 lpfc_nvmeio_data(phba, "NVMET DEFERRCV: xri x%x sz %d CPU %02x\n",
1253 ctxp->oxid, ctxp->size, raw_smp_processor_id());
1256 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
1257 "6425 Defer rcv: no buffer oxid x%x: "
1259 ctxp->oxid, ctxp->flag, ctxp->state);
1263 tgtp = phba->targetport->private;
1265 atomic_inc(&tgtp->rcv_fcp_cmd_defer);
1267 /* Free the nvmebuf since a new buffer already replaced it */
1268 nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
1269 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1270 ctxp->rqb_buffer = NULL;
1271 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1275 * lpfc_nvmet_ls_req_cmp - completion handler for a nvme ls request
1276 * @phba: Pointer to HBA context object
1277 * @cmdwqe: Pointer to driver command WQE object.
1278 * @wcqe: Pointer to driver response CQE object.
1280 * This function is the completion handler for NVME LS requests.
1281 * The function updates any states and statistics, then calls the
1282 * generic completion handler to finish completion of the request.
1285 lpfc_nvmet_ls_req_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
1286 struct lpfc_wcqe_complete *wcqe)
1288 __lpfc_nvme_ls_req_cmp(phba, cmdwqe->vport, cmdwqe, wcqe);
1292 * lpfc_nvmet_ls_req - Issue an Link Service request
1293 * @targetport: pointer to target instance registered with nvmet transport.
1294 * @hosthandle: hosthandle set by the driver in a prior ls_rqst_rcv.
1295 * Driver sets this value to the ndlp pointer.
1296 * @pnvme_lsreq: the transport nvme_ls_req structure for the LS
1298 * Driver registers this routine to handle any link service request
1299 * from the nvme_fc transport to a remote nvme-aware port.
1303 * non-zero: various error codes, in form of -Exxx
1306 lpfc_nvmet_ls_req(struct nvmet_fc_target_port *targetport,
1308 struct nvmefc_ls_req *pnvme_lsreq)
1310 struct lpfc_nvmet_tgtport *lpfc_nvmet = targetport->private;
1311 struct lpfc_hba *phba;
1312 struct lpfc_nodelist *ndlp;
1319 phba = lpfc_nvmet->phba;
1320 if (phba->pport->load_flag & FC_UNLOADING)
1323 hstate = atomic_read(&lpfc_nvmet->state);
1324 if (hstate == LPFC_NVMET_INV_HOST_ACTIVE)
1327 ndlp = (struct lpfc_nodelist *)hosthandle;
1329 ret = __lpfc_nvme_ls_req(phba->pport, ndlp, pnvme_lsreq,
1330 lpfc_nvmet_ls_req_cmp);
1336 * lpfc_nvmet_ls_abort - Abort a prior NVME LS request
1337 * @targetport: Transport targetport, that LS was issued from.
1338 * @hosthandle: hosthandle set by the driver in a prior ls_rqst_rcv.
1339 * Driver sets this value to the ndlp pointer.
1340 * @pnvme_lsreq: the transport nvme_ls_req structure for LS to be aborted
1342 * Driver registers this routine to abort an NVME LS request that is
1343 * in progress (from the transports perspective).
1346 lpfc_nvmet_ls_abort(struct nvmet_fc_target_port *targetport,
1348 struct nvmefc_ls_req *pnvme_lsreq)
1350 struct lpfc_nvmet_tgtport *lpfc_nvmet = targetport->private;
1351 struct lpfc_hba *phba;
1352 struct lpfc_nodelist *ndlp;
1355 phba = lpfc_nvmet->phba;
1356 if (phba->pport->load_flag & FC_UNLOADING)
1359 ndlp = (struct lpfc_nodelist *)hosthandle;
1361 ret = __lpfc_nvme_ls_abort(phba->pport, ndlp, pnvme_lsreq);
1363 atomic_inc(&lpfc_nvmet->xmt_ls_abort);
1367 lpfc_nvmet_host_release(void *hosthandle)
1369 struct lpfc_nodelist *ndlp = hosthandle;
1370 struct lpfc_hba *phba = ndlp->phba;
1371 struct lpfc_nvmet_tgtport *tgtp;
1373 if (!phba->targetport || !phba->targetport->private)
1376 lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
1377 "6202 NVMET XPT releasing hosthandle x%px "
1378 "DID x%x xflags x%x refcnt %d\n",
1379 hosthandle, ndlp->nlp_DID, ndlp->fc4_xpt_flags,
1380 kref_read(&ndlp->kref));
1381 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
1382 spin_lock_irq(&ndlp->lock);
1383 ndlp->fc4_xpt_flags &= ~NLP_XPT_HAS_HH;
1384 spin_unlock_irq(&ndlp->lock);
1386 atomic_set(&tgtp->state, 0);
1390 lpfc_nvmet_discovery_event(struct nvmet_fc_target_port *tgtport)
1392 struct lpfc_nvmet_tgtport *tgtp;
1393 struct lpfc_hba *phba;
1396 tgtp = tgtport->private;
1399 rc = lpfc_issue_els_rscn(phba->pport, 0);
1400 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1401 "6420 NVMET subsystem change: Notification %s\n",
1402 (rc) ? "Failed" : "Sent");
1405 static struct nvmet_fc_target_template lpfc_tgttemplate = {
1406 .targetport_delete = lpfc_nvmet_targetport_delete,
1407 .xmt_ls_rsp = lpfc_nvmet_xmt_ls_rsp,
1408 .fcp_op = lpfc_nvmet_xmt_fcp_op,
1409 .fcp_abort = lpfc_nvmet_xmt_fcp_abort,
1410 .fcp_req_release = lpfc_nvmet_xmt_fcp_release,
1411 .defer_rcv = lpfc_nvmet_defer_rcv,
1412 .discovery_event = lpfc_nvmet_discovery_event,
1413 .ls_req = lpfc_nvmet_ls_req,
1414 .ls_abort = lpfc_nvmet_ls_abort,
1415 .host_release = lpfc_nvmet_host_release,
1418 .max_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,
1419 .max_dif_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,
1420 .dma_boundary = 0xFFFFFFFF,
1422 /* optional features */
1423 .target_features = 0,
1424 /* sizes of additional private data for data structures */
1425 .target_priv_sz = sizeof(struct lpfc_nvmet_tgtport),
1426 .lsrqst_priv_sz = 0,
1430 __lpfc_nvmet_clean_io_for_cpu(struct lpfc_hba *phba,
1431 struct lpfc_nvmet_ctx_info *infop)
1433 struct lpfc_nvmet_ctxbuf *ctx_buf, *next_ctx_buf;
1434 unsigned long flags;
1436 spin_lock_irqsave(&infop->nvmet_ctx_list_lock, flags);
1437 list_for_each_entry_safe(ctx_buf, next_ctx_buf,
1438 &infop->nvmet_ctx_list, list) {
1439 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1440 list_del_init(&ctx_buf->list);
1441 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1443 spin_lock(&phba->hbalock);
1444 __lpfc_clear_active_sglq(phba, ctx_buf->sglq->sli4_lxritag);
1445 spin_unlock(&phba->hbalock);
1447 ctx_buf->sglq->state = SGL_FREED;
1448 ctx_buf->sglq->ndlp = NULL;
1450 spin_lock(&phba->sli4_hba.sgl_list_lock);
1451 list_add_tail(&ctx_buf->sglq->list,
1452 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1453 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1455 lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
1456 kfree(ctx_buf->context);
1458 spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, flags);
1462 lpfc_nvmet_cleanup_io_context(struct lpfc_hba *phba)
1464 struct lpfc_nvmet_ctx_info *infop;
1467 /* The first context list, MRQ 0 CPU 0 */
1468 infop = phba->sli4_hba.nvmet_ctx_info;
1472 /* Cycle the the entire CPU context list for every MRQ */
1473 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
1474 for_each_present_cpu(j) {
1475 infop = lpfc_get_ctx_list(phba, j, i);
1476 __lpfc_nvmet_clean_io_for_cpu(phba, infop);
1479 kfree(phba->sli4_hba.nvmet_ctx_info);
1480 phba->sli4_hba.nvmet_ctx_info = NULL;
1484 lpfc_nvmet_setup_io_context(struct lpfc_hba *phba)
1486 struct lpfc_nvmet_ctxbuf *ctx_buf;
1487 struct lpfc_iocbq *nvmewqe;
1488 union lpfc_wqe128 *wqe;
1489 struct lpfc_nvmet_ctx_info *last_infop;
1490 struct lpfc_nvmet_ctx_info *infop;
1493 lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
1494 "6403 Allocate NVMET resources for %d XRIs\n",
1495 phba->sli4_hba.nvmet_xri_cnt);
1497 phba->sli4_hba.nvmet_ctx_info = kcalloc(
1498 phba->sli4_hba.num_possible_cpu * phba->cfg_nvmet_mrq,
1499 sizeof(struct lpfc_nvmet_ctx_info), GFP_KERNEL);
1500 if (!phba->sli4_hba.nvmet_ctx_info) {
1501 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1502 "6419 Failed allocate memory for "
1503 "nvmet context lists\n");
1508 * Assuming X CPUs in the system, and Y MRQs, allocate some
1509 * lpfc_nvmet_ctx_info structures as follows:
1511 * cpu0/mrq0 cpu1/mrq0 ... cpuX/mrq0
1512 * cpu0/mrq1 cpu1/mrq1 ... cpuX/mrq1
1514 * cpuX/mrqY cpuX/mrqY ... cpuX/mrqY
1516 * Each line represents a MRQ "silo" containing an entry for
1519 * MRQ X is initially assumed to be associated with CPU X, thus
1520 * contexts are initially distributed across all MRQs using
1521 * the MRQ index (N) as follows cpuN/mrqN. When contexts are
1522 * freed, the are freed to the MRQ silo based on the CPU number
1523 * of the IO completion. Thus a context that was allocated for MRQ A
1524 * whose IO completed on CPU B will be freed to cpuB/mrqA.
1526 for_each_possible_cpu(i) {
1527 for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
1528 infop = lpfc_get_ctx_list(phba, i, j);
1529 INIT_LIST_HEAD(&infop->nvmet_ctx_list);
1530 spin_lock_init(&infop->nvmet_ctx_list_lock);
1531 infop->nvmet_ctx_list_cnt = 0;
1536 * Setup the next CPU context info ptr for each MRQ.
1537 * MRQ 0 will cycle thru CPUs 0 - X separately from
1538 * MRQ 1 cycling thru CPUs 0 - X, and so on.
1540 for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
1541 last_infop = lpfc_get_ctx_list(phba,
1542 cpumask_first(cpu_present_mask),
1544 for (i = phba->sli4_hba.num_possible_cpu - 1; i >= 0; i--) {
1545 infop = lpfc_get_ctx_list(phba, i, j);
1546 infop->nvmet_ctx_next_cpu = last_infop;
1551 /* For all nvmet xris, allocate resources needed to process a
1552 * received command on a per xri basis.
1555 cpu = cpumask_first(cpu_present_mask);
1556 for (i = 0; i < phba->sli4_hba.nvmet_xri_cnt; i++) {
1557 ctx_buf = kzalloc(sizeof(*ctx_buf), GFP_KERNEL);
1559 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1560 "6404 Ran out of memory for NVMET\n");
1564 ctx_buf->context = kzalloc(sizeof(*ctx_buf->context),
1566 if (!ctx_buf->context) {
1568 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1569 "6405 Ran out of NVMET "
1570 "context memory\n");
1573 ctx_buf->context->ctxbuf = ctx_buf;
1574 ctx_buf->context->state = LPFC_NVME_STE_FREE;
1576 ctx_buf->iocbq = lpfc_sli_get_iocbq(phba);
1577 if (!ctx_buf->iocbq) {
1578 kfree(ctx_buf->context);
1580 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1581 "6406 Ran out of NVMET iocb/WQEs\n");
1584 ctx_buf->iocbq->iocb_flag = LPFC_IO_NVMET;
1585 nvmewqe = ctx_buf->iocbq;
1586 wqe = &nvmewqe->wqe;
1588 /* Initialize WQE */
1589 memset(wqe, 0, sizeof(union lpfc_wqe));
1591 ctx_buf->iocbq->context1 = NULL;
1592 spin_lock(&phba->sli4_hba.sgl_list_lock);
1593 ctx_buf->sglq = __lpfc_sli_get_nvmet_sglq(phba, ctx_buf->iocbq);
1594 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1595 if (!ctx_buf->sglq) {
1596 lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
1597 kfree(ctx_buf->context);
1599 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1600 "6407 Ran out of NVMET XRIs\n");
1603 INIT_WORK(&ctx_buf->defer_work, lpfc_nvmet_fcp_rqst_defer_work);
1606 * Add ctx to MRQidx context list. Our initial assumption
1607 * is MRQidx will be associated with CPUidx. This association
1608 * can change on the fly.
1610 infop = lpfc_get_ctx_list(phba, cpu, idx);
1611 spin_lock(&infop->nvmet_ctx_list_lock);
1612 list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list);
1613 infop->nvmet_ctx_list_cnt++;
1614 spin_unlock(&infop->nvmet_ctx_list_lock);
1616 /* Spread ctx structures evenly across all MRQs */
1618 if (idx >= phba->cfg_nvmet_mrq) {
1620 cpu = cpumask_first(cpu_present_mask);
1623 cpu = cpumask_next(cpu, cpu_present_mask);
1624 if (cpu == nr_cpu_ids)
1625 cpu = cpumask_first(cpu_present_mask);
1629 for_each_present_cpu(i) {
1630 for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
1631 infop = lpfc_get_ctx_list(phba, i, j);
1632 lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
1633 "6408 TOTAL NVMET ctx for CPU %d "
1634 "MRQ %d: cnt %d nextcpu x%px\n",
1635 i, j, infop->nvmet_ctx_list_cnt,
1636 infop->nvmet_ctx_next_cpu);
1643 lpfc_nvmet_create_targetport(struct lpfc_hba *phba)
1645 struct lpfc_vport *vport = phba->pport;
1646 struct lpfc_nvmet_tgtport *tgtp;
1647 struct nvmet_fc_port_info pinfo;
1650 if (phba->targetport)
1653 error = lpfc_nvmet_setup_io_context(phba);
1657 memset(&pinfo, 0, sizeof(struct nvmet_fc_port_info));
1658 pinfo.node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
1659 pinfo.port_name = wwn_to_u64(vport->fc_portname.u.wwn);
1660 pinfo.port_id = vport->fc_myDID;
1662 /* We need to tell the transport layer + 1 because it takes page
1663 * alignment into account. When space for the SGL is allocated we
1664 * allocate + 3, one for cmd, one for rsp and one for this alignment
1666 lpfc_tgttemplate.max_sgl_segments = phba->cfg_nvme_seg_cnt + 1;
1667 lpfc_tgttemplate.max_hw_queues = phba->cfg_hdw_queue;
1668 lpfc_tgttemplate.target_features = NVMET_FCTGTFEAT_READDATA_RSP;
1670 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
1671 error = nvmet_fc_register_targetport(&pinfo, &lpfc_tgttemplate,
1678 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1679 "6025 Cannot register NVME targetport x%x: "
1680 "portnm %llx nodenm %llx segs %d qs %d\n",
1682 pinfo.port_name, pinfo.node_name,
1683 lpfc_tgttemplate.max_sgl_segments,
1684 lpfc_tgttemplate.max_hw_queues);
1685 phba->targetport = NULL;
1686 phba->nvmet_support = 0;
1688 lpfc_nvmet_cleanup_io_context(phba);
1691 tgtp = (struct lpfc_nvmet_tgtport *)
1692 phba->targetport->private;
1695 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
1696 "6026 Registered NVME "
1697 "targetport: x%px, private x%px "
1698 "portnm %llx nodenm %llx segs %d qs %d\n",
1699 phba->targetport, tgtp,
1700 pinfo.port_name, pinfo.node_name,
1701 lpfc_tgttemplate.max_sgl_segments,
1702 lpfc_tgttemplate.max_hw_queues);
1704 atomic_set(&tgtp->rcv_ls_req_in, 0);
1705 atomic_set(&tgtp->rcv_ls_req_out, 0);
1706 atomic_set(&tgtp->rcv_ls_req_drop, 0);
1707 atomic_set(&tgtp->xmt_ls_abort, 0);
1708 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0);
1709 atomic_set(&tgtp->xmt_ls_rsp, 0);
1710 atomic_set(&tgtp->xmt_ls_drop, 0);
1711 atomic_set(&tgtp->xmt_ls_rsp_error, 0);
1712 atomic_set(&tgtp->xmt_ls_rsp_xb_set, 0);
1713 atomic_set(&tgtp->xmt_ls_rsp_aborted, 0);
1714 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
1715 atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
1716 atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
1717 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0);
1718 atomic_set(&tgtp->xmt_fcp_drop, 0);
1719 atomic_set(&tgtp->xmt_fcp_read_rsp, 0);
1720 atomic_set(&tgtp->xmt_fcp_read, 0);
1721 atomic_set(&tgtp->xmt_fcp_write, 0);
1722 atomic_set(&tgtp->xmt_fcp_rsp, 0);
1723 atomic_set(&tgtp->xmt_fcp_release, 0);
1724 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
1725 atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
1726 atomic_set(&tgtp->xmt_fcp_rsp_xb_set, 0);
1727 atomic_set(&tgtp->xmt_fcp_rsp_aborted, 0);
1728 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
1729 atomic_set(&tgtp->xmt_fcp_xri_abort_cqe, 0);
1730 atomic_set(&tgtp->xmt_fcp_abort, 0);
1731 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0);
1732 atomic_set(&tgtp->xmt_abort_unsol, 0);
1733 atomic_set(&tgtp->xmt_abort_sol, 0);
1734 atomic_set(&tgtp->xmt_abort_rsp, 0);
1735 atomic_set(&tgtp->xmt_abort_rsp_error, 0);
1736 atomic_set(&tgtp->defer_ctx, 0);
1737 atomic_set(&tgtp->defer_fod, 0);
1738 atomic_set(&tgtp->defer_wqfull, 0);
1744 lpfc_nvmet_update_targetport(struct lpfc_hba *phba)
1746 struct lpfc_vport *vport = phba->pport;
1748 if (!phba->targetport)
1751 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME,
1752 "6007 Update NVMET port x%px did x%x\n",
1753 phba->targetport, vport->fc_myDID);
1755 phba->targetport->port_id = vport->fc_myDID;
1760 * lpfc_sli4_nvmet_xri_aborted - Fast-path process of nvmet xri abort
1761 * @phba: pointer to lpfc hba data structure.
1762 * @axri: pointer to the nvmet xri abort wcqe structure.
1764 * This routine is invoked by the worker thread to process a SLI4 fast-path
1765 * NVMET aborted xri.
1768 lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba,
1769 struct sli4_wcqe_xri_aborted *axri)
1771 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
1772 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
1773 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
1774 struct lpfc_async_xchg_ctx *ctxp, *next_ctxp;
1775 struct lpfc_nvmet_tgtport *tgtp;
1776 struct nvmefc_tgt_fcp_req *req = NULL;
1777 struct lpfc_nodelist *ndlp;
1778 unsigned long iflag = 0;
1780 bool released = false;
1782 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1783 "6317 XB aborted xri x%x rxid x%x\n", xri, rxid);
1785 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
1788 if (phba->targetport) {
1789 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
1790 atomic_inc(&tgtp->xmt_fcp_xri_abort_cqe);
1793 spin_lock_irqsave(&phba->sli4_hba.abts_nvmet_buf_list_lock, iflag);
1794 list_for_each_entry_safe(ctxp, next_ctxp,
1795 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1797 if (ctxp->ctxbuf->sglq->sli4_xritag != xri)
1800 spin_unlock_irqrestore(&phba->sli4_hba.abts_nvmet_buf_list_lock,
1803 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1804 /* Check if we already received a free context call
1805 * and we have completed processing an abort situation.
1807 if (ctxp->flag & LPFC_NVME_CTX_RLS &&
1808 !(ctxp->flag & LPFC_NVME_ABORT_OP)) {
1809 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1810 list_del_init(&ctxp->list);
1811 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1814 ctxp->flag &= ~LPFC_NVME_XBUSY;
1815 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1817 rrq_empty = list_empty(&phba->active_rrq_list);
1818 ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
1820 (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE ||
1821 ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
1822 lpfc_set_rrq_active(phba, ndlp,
1823 ctxp->ctxbuf->sglq->sli4_lxritag,
1825 lpfc_sli4_abts_err_handler(phba, ndlp, axri);
1828 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1829 "6318 XB aborted oxid x%x flg x%x (%x)\n",
1830 ctxp->oxid, ctxp->flag, released);
1832 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1835 lpfc_worker_wake_up(phba);
1838 spin_unlock_irqrestore(&phba->sli4_hba.abts_nvmet_buf_list_lock, iflag);
1839 ctxp = lpfc_nvmet_get_ctx_for_xri(phba, xri);
1842 * Abort already done by FW, so BA_ACC sent.
1843 * However, the transport may be unaware.
1845 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1846 "6323 NVMET Rcv ABTS xri x%x ctxp state x%x "
1847 "flag x%x oxid x%x rxid x%x\n",
1848 xri, ctxp->state, ctxp->flag, ctxp->oxid,
1851 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1852 ctxp->flag |= LPFC_NVME_ABTS_RCV;
1853 ctxp->state = LPFC_NVME_STE_ABORT;
1854 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1856 lpfc_nvmeio_data(phba,
1857 "NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
1858 xri, raw_smp_processor_id(), 0);
1860 req = &ctxp->hdlrctx.fcp_req;
1862 nvmet_fc_rcv_fcp_abort(phba->targetport, req);
1868 lpfc_nvmet_rcv_unsol_abort(struct lpfc_vport *vport,
1869 struct fc_frame_header *fc_hdr)
1871 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
1872 struct lpfc_hba *phba = vport->phba;
1873 struct lpfc_async_xchg_ctx *ctxp, *next_ctxp;
1874 struct nvmefc_tgt_fcp_req *rsp;
1877 unsigned long iflag = 0;
1879 sid = sli4_sid_from_fc_hdr(fc_hdr);
1880 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
1882 spin_lock_irqsave(&phba->sli4_hba.abts_nvmet_buf_list_lock, iflag);
1883 list_for_each_entry_safe(ctxp, next_ctxp,
1884 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1886 if (ctxp->oxid != oxid || ctxp->sid != sid)
1889 xri = ctxp->ctxbuf->sglq->sli4_xritag;
1891 spin_unlock_irqrestore(&phba->sli4_hba.abts_nvmet_buf_list_lock,
1893 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1894 ctxp->flag |= LPFC_NVME_ABTS_RCV;
1895 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1897 lpfc_nvmeio_data(phba,
1898 "NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
1899 xri, raw_smp_processor_id(), 0);
1901 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1902 "6319 NVMET Rcv ABTS:acc xri x%x\n", xri);
1904 rsp = &ctxp->hdlrctx.fcp_req;
1905 nvmet_fc_rcv_fcp_abort(phba->targetport, rsp);
1907 /* Respond with BA_ACC accordingly */
1908 lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
1911 spin_unlock_irqrestore(&phba->sli4_hba.abts_nvmet_buf_list_lock, iflag);
1912 /* check the wait list */
1913 if (phba->sli4_hba.nvmet_io_wait_cnt) {
1914 struct rqb_dmabuf *nvmebuf;
1915 struct fc_frame_header *fc_hdr_tmp;
1920 spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
1922 /* match by oxid and s_id */
1923 list_for_each_entry(nvmebuf,
1924 &phba->sli4_hba.lpfc_nvmet_io_wait_list,
1926 fc_hdr_tmp = (struct fc_frame_header *)
1927 (nvmebuf->hbuf.virt);
1928 oxid_tmp = be16_to_cpu(fc_hdr_tmp->fh_ox_id);
1929 sid_tmp = sli4_sid_from_fc_hdr(fc_hdr_tmp);
1930 if (oxid_tmp != oxid || sid_tmp != sid)
1933 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1934 "6321 NVMET Rcv ABTS oxid x%x from x%x "
1935 "is waiting for a ctxp\n",
1938 list_del_init(&nvmebuf->hbuf.list);
1939 phba->sli4_hba.nvmet_io_wait_cnt--;
1943 spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
1946 /* free buffer since already posted a new DMA buffer to RQ */
1948 nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
1949 /* Respond with BA_ACC accordingly */
1950 lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
1955 /* check active list */
1956 ctxp = lpfc_nvmet_get_ctx_for_oxid(phba, oxid, sid);
1958 xri = ctxp->ctxbuf->sglq->sli4_xritag;
1960 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1961 ctxp->flag |= (LPFC_NVME_ABTS_RCV | LPFC_NVME_ABORT_OP);
1962 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1964 lpfc_nvmeio_data(phba,
1965 "NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
1966 xri, raw_smp_processor_id(), 0);
1968 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1969 "6322 NVMET Rcv ABTS:acc oxid x%x xri x%x "
1970 "flag x%x state x%x\n",
1971 ctxp->oxid, xri, ctxp->flag, ctxp->state);
1973 if (ctxp->flag & LPFC_NVME_TNOTIFY) {
1974 /* Notify the transport */
1975 nvmet_fc_rcv_fcp_abort(phba->targetport,
1976 &ctxp->hdlrctx.fcp_req);
1978 cancel_work_sync(&ctxp->ctxbuf->defer_work);
1979 spin_lock_irqsave(&ctxp->ctxlock, iflag);
1980 lpfc_nvmet_defer_release(phba, ctxp);
1981 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
1983 lpfc_nvmet_sol_fcp_issue_abort(phba, ctxp, ctxp->sid,
1986 lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
1990 lpfc_nvmeio_data(phba, "NVMET ABTS RCV: oxid x%x CPU %02x rjt %d\n",
1991 oxid, raw_smp_processor_id(), 1);
1993 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
1994 "6320 NVMET Rcv ABTS:rjt oxid x%x\n", oxid);
1996 /* Respond with BA_RJT accordingly */
1997 lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 0);
2003 lpfc_nvmet_wqfull_flush(struct lpfc_hba *phba, struct lpfc_queue *wq,
2004 struct lpfc_async_xchg_ctx *ctxp)
2006 struct lpfc_sli_ring *pring;
2007 struct lpfc_iocbq *nvmewqeq;
2008 struct lpfc_iocbq *next_nvmewqeq;
2009 unsigned long iflags;
2010 struct lpfc_wcqe_complete wcqe;
2011 struct lpfc_wcqe_complete *wcqep;
2016 /* Fake an ABORT error code back to cmpl routine */
2017 memset(wcqep, 0, sizeof(struct lpfc_wcqe_complete));
2018 bf_set(lpfc_wcqe_c_status, wcqep, IOSTAT_LOCAL_REJECT);
2019 wcqep->parameter = IOERR_ABORT_REQUESTED;
2021 spin_lock_irqsave(&pring->ring_lock, iflags);
2022 list_for_each_entry_safe(nvmewqeq, next_nvmewqeq,
2023 &wq->wqfull_list, list) {
2025 /* Checking for a specific IO to flush */
2026 if (nvmewqeq->context2 == ctxp) {
2027 list_del(&nvmewqeq->list);
2028 spin_unlock_irqrestore(&pring->ring_lock,
2030 lpfc_nvmet_xmt_fcp_op_cmp(phba, nvmewqeq,
2037 list_del(&nvmewqeq->list);
2038 spin_unlock_irqrestore(&pring->ring_lock, iflags);
2039 lpfc_nvmet_xmt_fcp_op_cmp(phba, nvmewqeq, wcqep);
2040 spin_lock_irqsave(&pring->ring_lock, iflags);
2044 wq->q_flag &= ~HBA_NVMET_WQFULL;
2045 spin_unlock_irqrestore(&pring->ring_lock, iflags);
2049 lpfc_nvmet_wqfull_process(struct lpfc_hba *phba,
2050 struct lpfc_queue *wq)
2052 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
2053 struct lpfc_sli_ring *pring;
2054 struct lpfc_iocbq *nvmewqeq;
2055 struct lpfc_async_xchg_ctx *ctxp;
2056 unsigned long iflags;
2060 * Some WQE slots are available, so try to re-issue anything
2061 * on the WQ wqfull_list.
2064 spin_lock_irqsave(&pring->ring_lock, iflags);
2065 while (!list_empty(&wq->wqfull_list)) {
2066 list_remove_head(&wq->wqfull_list, nvmewqeq, struct lpfc_iocbq,
2068 spin_unlock_irqrestore(&pring->ring_lock, iflags);
2069 ctxp = (struct lpfc_async_xchg_ctx *)nvmewqeq->context2;
2070 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, nvmewqeq);
2071 spin_lock_irqsave(&pring->ring_lock, iflags);
2073 /* WQ was full again, so put it back on the list */
2074 list_add(&nvmewqeq->list, &wq->wqfull_list);
2075 spin_unlock_irqrestore(&pring->ring_lock, iflags);
2078 if (rc == WQE_SUCCESS) {
2079 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
2080 if (ctxp->ts_cmd_nvme) {
2081 if (ctxp->hdlrctx.fcp_req.op == NVMET_FCOP_RSP)
2082 ctxp->ts_status_wqput = ktime_get_ns();
2084 ctxp->ts_data_wqput = ktime_get_ns();
2091 wq->q_flag &= ~HBA_NVMET_WQFULL;
2092 spin_unlock_irqrestore(&pring->ring_lock, iflags);
2098 lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba)
2100 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
2101 struct lpfc_nvmet_tgtport *tgtp;
2102 struct lpfc_queue *wq;
2104 DECLARE_COMPLETION_ONSTACK(tport_unreg_cmp);
2106 if (phba->nvmet_support == 0)
2108 if (phba->targetport) {
2109 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2110 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
2111 wq = phba->sli4_hba.hdwq[qidx].io_wq;
2112 lpfc_nvmet_wqfull_flush(phba, wq, NULL);
2114 tgtp->tport_unreg_cmp = &tport_unreg_cmp;
2115 nvmet_fc_unregister_targetport(phba->targetport);
2116 if (!wait_for_completion_timeout(&tport_unreg_cmp,
2117 msecs_to_jiffies(LPFC_NVMET_WAIT_TMO)))
2118 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2119 "6179 Unreg targetport x%px timeout "
2120 "reached.\n", phba->targetport);
2121 lpfc_nvmet_cleanup_io_context(phba);
2123 phba->targetport = NULL;
2128 * lpfc_nvmet_handle_lsreq - Process an NVME LS request
2129 * @phba: pointer to lpfc hba data structure.
2130 * @axchg: pointer to exchange context for the NVME LS request
2132 * This routine is used for processing an asychronously received NVME LS
2133 * request. Any remaining validation is done and the LS is then forwarded
2134 * to the nvmet-fc transport via nvmet_fc_rcv_ls_req().
2136 * The calling sequence should be: nvmet_fc_rcv_ls_req() -> (processing)
2137 * -> lpfc_nvmet_xmt_ls_rsp/cmp -> req->done.
2138 * lpfc_nvme_xmt_ls_rsp_cmp should free the allocated axchg.
2140 * Returns 0 if LS was handled and delivered to the transport
2141 * Returns 1 if LS failed to be handled and should be dropped
2144 lpfc_nvmet_handle_lsreq(struct lpfc_hba *phba,
2145 struct lpfc_async_xchg_ctx *axchg)
2147 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
2148 struct lpfc_nvmet_tgtport *tgtp = phba->targetport->private;
2149 uint32_t *payload = axchg->payload;
2152 atomic_inc(&tgtp->rcv_ls_req_in);
2155 * Driver passes the ndlp as the hosthandle argument allowing
2156 * the transport to generate LS requests for any associateions
2159 rc = nvmet_fc_rcv_ls_req(phba->targetport, axchg->ndlp, &axchg->ls_rsp,
2160 axchg->payload, axchg->size);
2162 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
2163 "6037 NVMET Unsol rcv: sz %d rc %d: %08x %08x %08x "
2164 "%08x %08x %08x\n", axchg->size, rc,
2165 *payload, *(payload+1), *(payload+2),
2166 *(payload+3), *(payload+4), *(payload+5));
2169 atomic_inc(&tgtp->rcv_ls_req_out);
2173 atomic_inc(&tgtp->rcv_ls_req_drop);
2179 lpfc_nvmet_process_rcv_fcp_req(struct lpfc_nvmet_ctxbuf *ctx_buf)
2181 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
2182 struct lpfc_async_xchg_ctx *ctxp = ctx_buf->context;
2183 struct lpfc_hba *phba = ctxp->phba;
2184 struct rqb_dmabuf *nvmebuf = ctxp->rqb_buffer;
2185 struct lpfc_nvmet_tgtport *tgtp;
2186 uint32_t *payload, qno;
2188 unsigned long iflags;
2191 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2192 "6159 process_rcv_fcp_req, nvmebuf is NULL, "
2193 "oxid: x%x flg: x%x state: x%x\n",
2194 ctxp->oxid, ctxp->flag, ctxp->state);
2195 spin_lock_irqsave(&ctxp->ctxlock, iflags);
2196 lpfc_nvmet_defer_release(phba, ctxp);
2197 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2198 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
2203 if (ctxp->flag & LPFC_NVME_ABTS_RCV) {
2204 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2205 "6324 IO oxid x%x aborted\n",
2210 payload = (uint32_t *)(nvmebuf->dbuf.virt);
2211 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2212 ctxp->flag |= LPFC_NVME_TNOTIFY;
2213 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
2214 if (ctxp->ts_isr_cmd)
2215 ctxp->ts_cmd_nvme = ktime_get_ns();
2218 * The calling sequence should be:
2219 * nvmet_fc_rcv_fcp_req->lpfc_nvmet_xmt_fcp_op/cmp- req->done
2220 * lpfc_nvmet_xmt_fcp_op_cmp should free the allocated ctxp.
2221 * When we return from nvmet_fc_rcv_fcp_req, all relevant info
2222 * the NVME command / FC header is stored.
2223 * A buffer has already been reposted for this IO, so just free
2226 rc = nvmet_fc_rcv_fcp_req(phba->targetport, &ctxp->hdlrctx.fcp_req,
2227 payload, ctxp->size);
2228 /* Process FCP command */
2230 atomic_inc(&tgtp->rcv_fcp_cmd_out);
2231 spin_lock_irqsave(&ctxp->ctxlock, iflags);
2232 if ((ctxp->flag & LPFC_NVME_CTX_REUSE_WQ) ||
2233 (nvmebuf != ctxp->rqb_buffer)) {
2234 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2237 ctxp->rqb_buffer = NULL;
2238 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2239 lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
2243 /* Processing of FCP command is deferred */
2244 if (rc == -EOVERFLOW) {
2245 lpfc_nvmeio_data(phba, "NVMET RCV BUSY: xri x%x sz %d "
2247 ctxp->oxid, ctxp->size, ctxp->sid);
2248 atomic_inc(&tgtp->rcv_fcp_cmd_out);
2249 atomic_inc(&tgtp->defer_fod);
2250 spin_lock_irqsave(&ctxp->ctxlock, iflags);
2251 if (ctxp->flag & LPFC_NVME_CTX_REUSE_WQ) {
2252 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2255 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2257 * Post a replacement DMA buffer to RQ and defer
2258 * freeing rcv buffer till .defer_rcv callback
2261 lpfc_post_rq_buffer(
2262 phba, phba->sli4_hba.nvmet_mrq_hdr[qno],
2263 phba->sli4_hba.nvmet_mrq_data[qno], 1, qno);
2266 ctxp->flag &= ~LPFC_NVME_TNOTIFY;
2267 atomic_inc(&tgtp->rcv_fcp_cmd_drop);
2268 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2269 "2582 FCP Drop IO x%x: err x%x: x%x x%x x%x\n",
2271 atomic_read(&tgtp->rcv_fcp_cmd_in),
2272 atomic_read(&tgtp->rcv_fcp_cmd_out),
2273 atomic_read(&tgtp->xmt_fcp_release));
2274 lpfc_nvmeio_data(phba, "NVMET FCP DROP: xri x%x sz %d from %06x\n",
2275 ctxp->oxid, ctxp->size, ctxp->sid);
2276 spin_lock_irqsave(&ctxp->ctxlock, iflags);
2277 lpfc_nvmet_defer_release(phba, ctxp);
2278 spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
2279 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid, ctxp->oxid);
2284 lpfc_nvmet_fcp_rqst_defer_work(struct work_struct *work)
2286 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
2287 struct lpfc_nvmet_ctxbuf *ctx_buf =
2288 container_of(work, struct lpfc_nvmet_ctxbuf, defer_work);
2290 lpfc_nvmet_process_rcv_fcp_req(ctx_buf);
2294 static struct lpfc_nvmet_ctxbuf *
2295 lpfc_nvmet_replenish_context(struct lpfc_hba *phba,
2296 struct lpfc_nvmet_ctx_info *current_infop)
2298 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
2299 struct lpfc_nvmet_ctxbuf *ctx_buf = NULL;
2300 struct lpfc_nvmet_ctx_info *get_infop;
2304 * The current_infop for the MRQ a NVME command IU was received
2305 * on is empty. Our goal is to replenish this MRQs context
2306 * list from a another CPUs.
2308 * First we need to pick a context list to start looking on.
2309 * nvmet_ctx_start_cpu has available context the last time
2310 * we needed to replenish this CPU where nvmet_ctx_next_cpu
2311 * is just the next sequential CPU for this MRQ.
2313 if (current_infop->nvmet_ctx_start_cpu)
2314 get_infop = current_infop->nvmet_ctx_start_cpu;
2316 get_infop = current_infop->nvmet_ctx_next_cpu;
2318 for (i = 0; i < phba->sli4_hba.num_possible_cpu; i++) {
2319 if (get_infop == current_infop) {
2320 get_infop = get_infop->nvmet_ctx_next_cpu;
2323 spin_lock(&get_infop->nvmet_ctx_list_lock);
2325 /* Just take the entire context list, if there are any */
2326 if (get_infop->nvmet_ctx_list_cnt) {
2327 list_splice_init(&get_infop->nvmet_ctx_list,
2328 ¤t_infop->nvmet_ctx_list);
2329 current_infop->nvmet_ctx_list_cnt =
2330 get_infop->nvmet_ctx_list_cnt - 1;
2331 get_infop->nvmet_ctx_list_cnt = 0;
2332 spin_unlock(&get_infop->nvmet_ctx_list_lock);
2334 current_infop->nvmet_ctx_start_cpu = get_infop;
2335 list_remove_head(¤t_infop->nvmet_ctx_list,
2336 ctx_buf, struct lpfc_nvmet_ctxbuf,
2341 /* Otherwise, move on to the next CPU for this MRQ */
2342 spin_unlock(&get_infop->nvmet_ctx_list_lock);
2343 get_infop = get_infop->nvmet_ctx_next_cpu;
2347 /* Nothing found, all contexts for the MRQ are in-flight */
2352 * lpfc_nvmet_unsol_fcp_buffer - Process an unsolicited event data buffer
2353 * @phba: pointer to lpfc hba data structure.
2354 * @idx: relative index of MRQ vector
2355 * @nvmebuf: pointer to lpfc nvme command HBQ data structure.
2356 * @isr_timestamp: in jiffies.
2357 * @cqflag: cq processing information regarding workload.
2359 * This routine is used for processing the WQE associated with a unsolicited
2360 * event. It first determines whether there is an existing ndlp that matches
2361 * the DID from the unsolicited WQE. If not, it will create a new one with
2362 * the DID from the unsolicited WQE. The ELS command from the unsolicited
2363 * WQE is then used to invoke the proper routine and to set up proper state
2364 * of the discovery state machine.
2367 lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
2369 struct rqb_dmabuf *nvmebuf,
2370 uint64_t isr_timestamp,
2373 struct lpfc_async_xchg_ctx *ctxp;
2374 struct lpfc_nvmet_tgtport *tgtp;
2375 struct fc_frame_header *fc_hdr;
2376 struct lpfc_nvmet_ctxbuf *ctx_buf;
2377 struct lpfc_nvmet_ctx_info *current_infop;
2378 uint32_t size, oxid, sid, qno;
2379 unsigned long iflag;
2382 if (!IS_ENABLED(CONFIG_NVME_TARGET_FC))
2386 if (!nvmebuf || !phba->targetport) {
2387 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2388 "6157 NVMET FCP Drop IO\n");
2390 lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
2395 * Get a pointer to the context list for this MRQ based on
2396 * the CPU this MRQ IRQ is associated with. If the CPU association
2397 * changes from our initial assumption, the context list could
2398 * be empty, thus it would need to be replenished with the
2399 * context list from another CPU for this MRQ.
2401 current_cpu = raw_smp_processor_id();
2402 current_infop = lpfc_get_ctx_list(phba, current_cpu, idx);
2403 spin_lock_irqsave(¤t_infop->nvmet_ctx_list_lock, iflag);
2404 if (current_infop->nvmet_ctx_list_cnt) {
2405 list_remove_head(¤t_infop->nvmet_ctx_list,
2406 ctx_buf, struct lpfc_nvmet_ctxbuf, list);
2407 current_infop->nvmet_ctx_list_cnt--;
2409 ctx_buf = lpfc_nvmet_replenish_context(phba, current_infop);
2411 spin_unlock_irqrestore(¤t_infop->nvmet_ctx_list_lock, iflag);
2413 fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
2414 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
2415 size = nvmebuf->bytes_recv;
2417 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
2418 if (phba->hdwqstat_on & LPFC_CHECK_NVMET_IO) {
2419 this_cpu_inc(phba->sli4_hba.c_stat->rcv_io);
2420 if (idx != current_cpu)
2421 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
2422 "6703 CPU Check rcv: "
2423 "cpu %d expect %d\n",
2428 lpfc_nvmeio_data(phba, "NVMET FCP RCV: xri x%x sz %d CPU %02x\n",
2429 oxid, size, raw_smp_processor_id());
2431 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2434 /* Queue this NVME IO to process later */
2435 spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
2436 list_add_tail(&nvmebuf->hbuf.list,
2437 &phba->sli4_hba.lpfc_nvmet_io_wait_list);
2438 phba->sli4_hba.nvmet_io_wait_cnt++;
2439 phba->sli4_hba.nvmet_io_wait_total++;
2440 spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
2443 /* Post a brand new DMA buffer to RQ */
2445 lpfc_post_rq_buffer(
2446 phba, phba->sli4_hba.nvmet_mrq_hdr[qno],
2447 phba->sli4_hba.nvmet_mrq_data[qno], 1, qno);
2449 atomic_inc(&tgtp->defer_ctx);
2453 sid = sli4_sid_from_fc_hdr(fc_hdr);
2455 ctxp = (struct lpfc_async_xchg_ctx *)ctx_buf->context;
2456 spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
2457 list_add_tail(&ctxp->list, &phba->sli4_hba.t_active_ctx_list);
2458 spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
2459 if (ctxp->state != LPFC_NVME_STE_FREE) {
2460 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2461 "6414 NVMET Context corrupt %d %d oxid x%x\n",
2462 ctxp->state, ctxp->entry_cnt, ctxp->oxid);
2471 ctxp->state = LPFC_NVME_STE_RCV;
2472 ctxp->entry_cnt = 1;
2474 ctxp->ctxbuf = ctx_buf;
2475 ctxp->rqb_buffer = (void *)nvmebuf;
2477 spin_lock_init(&ctxp->ctxlock);
2479 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
2481 ctxp->ts_isr_cmd = isr_timestamp;
2482 ctxp->ts_cmd_nvme = 0;
2483 ctxp->ts_nvme_data = 0;
2484 ctxp->ts_data_wqput = 0;
2485 ctxp->ts_isr_data = 0;
2486 ctxp->ts_data_nvme = 0;
2487 ctxp->ts_nvme_status = 0;
2488 ctxp->ts_status_wqput = 0;
2489 ctxp->ts_isr_status = 0;
2490 ctxp->ts_status_nvme = 0;
2493 atomic_inc(&tgtp->rcv_fcp_cmd_in);
2494 /* check for cq processing load */
2496 lpfc_nvmet_process_rcv_fcp_req(ctx_buf);
2500 if (!queue_work(phba->wq, &ctx_buf->defer_work)) {
2501 atomic_inc(&tgtp->rcv_fcp_cmd_drop);
2502 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2503 "6325 Unable to queue work for oxid x%x. "
2504 "FCP Drop IO [x%x x%x x%x]\n",
2506 atomic_read(&tgtp->rcv_fcp_cmd_in),
2507 atomic_read(&tgtp->rcv_fcp_cmd_out),
2508 atomic_read(&tgtp->xmt_fcp_release));
2510 spin_lock_irqsave(&ctxp->ctxlock, iflag);
2511 lpfc_nvmet_defer_release(phba, ctxp);
2512 spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
2513 lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid);
2518 * lpfc_nvmet_unsol_fcp_event - Process an unsolicited event from an nvme nport
2519 * @phba: pointer to lpfc hba data structure.
2520 * @idx: relative index of MRQ vector
2521 * @nvmebuf: pointer to received nvme data structure.
2522 * @isr_timestamp: in jiffies.
2523 * @cqflag: cq processing information regarding workload.
2525 * This routine is used to process an unsolicited event received from a SLI
2526 * (Service Level Interface) ring. The actual processing of the data buffer
2527 * associated with the unsolicited event is done by invoking the routine
2528 * lpfc_nvmet_unsol_fcp_buffer() after properly set up the buffer from the
2529 * SLI RQ on which the unsolicited event was received.
2532 lpfc_nvmet_unsol_fcp_event(struct lpfc_hba *phba,
2534 struct rqb_dmabuf *nvmebuf,
2535 uint64_t isr_timestamp,
2539 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2540 "3167 NVMET FCP Drop IO\n");
2543 if (phba->nvmet_support == 0) {
2544 lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
2547 lpfc_nvmet_unsol_fcp_buffer(phba, idx, nvmebuf, isr_timestamp, cqflag);
2551 * lpfc_nvmet_prep_ls_wqe - Allocate and prepare a lpfc wqe data structure
2552 * @phba: pointer to a host N_Port data structure.
2553 * @ctxp: Context info for NVME LS Request
2554 * @rspbuf: DMA buffer of NVME command.
2555 * @rspsize: size of the NVME command.
2557 * This routine is used for allocating a lpfc-WQE data structure from
2558 * the driver lpfc-WQE free-list and prepare the WQE with the parameters
2559 * passed into the routine for discovery state machine to issue an Extended
2560 * Link Service (NVME) commands. It is a generic lpfc-WQE allocation
2561 * and preparation routine that is used by all the discovery state machine
2562 * routines and the NVME command-specific fields will be later set up by
2563 * the individual discovery machine routines after calling this routine
2564 * allocating and preparing a generic WQE data structure. It fills in the
2565 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
2566 * payload and response payload (if expected). The reference count on the
2567 * ndlp is incremented by 1 and the reference to the ndlp is put into
2568 * context1 of the WQE data structure for this WQE to hold the ndlp
2569 * reference for the command's callback function to access later.
2572 * Pointer to the newly allocated/prepared nvme wqe data structure
2573 * NULL - when nvme wqe data structure allocation/preparation failed
2575 static struct lpfc_iocbq *
2576 lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *phba,
2577 struct lpfc_async_xchg_ctx *ctxp,
2578 dma_addr_t rspbuf, uint16_t rspsize)
2580 struct lpfc_nodelist *ndlp;
2581 struct lpfc_iocbq *nvmewqe;
2582 union lpfc_wqe128 *wqe;
2584 if (!lpfc_is_link_up(phba)) {
2585 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2586 "6104 NVMET prep LS wqe: link err: "
2587 "NPORT x%x oxid:x%x ste %d\n",
2588 ctxp->sid, ctxp->oxid, ctxp->state);
2592 /* Allocate buffer for command wqe */
2593 nvmewqe = lpfc_sli_get_iocbq(phba);
2594 if (nvmewqe == NULL) {
2595 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2596 "6105 NVMET prep LS wqe: No WQE: "
2597 "NPORT x%x oxid x%x ste %d\n",
2598 ctxp->sid, ctxp->oxid, ctxp->state);
2602 ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
2604 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2605 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
2606 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2607 "6106 NVMET prep LS wqe: No ndlp: "
2608 "NPORT x%x oxid x%x ste %d\n",
2609 ctxp->sid, ctxp->oxid, ctxp->state);
2610 goto nvme_wqe_free_wqeq_exit;
2612 ctxp->wqeq = nvmewqe;
2614 /* prevent preparing wqe with NULL ndlp reference */
2615 nvmewqe->context1 = lpfc_nlp_get(ndlp);
2616 if (nvmewqe->context1 == NULL)
2617 goto nvme_wqe_free_wqeq_exit;
2618 nvmewqe->context2 = ctxp;
2620 wqe = &nvmewqe->wqe;
2621 memset(wqe, 0, sizeof(union lpfc_wqe));
2624 wqe->xmit_sequence.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2625 wqe->xmit_sequence.bde.tus.f.bdeSize = rspsize;
2626 wqe->xmit_sequence.bde.addrLow = le32_to_cpu(putPaddrLow(rspbuf));
2627 wqe->xmit_sequence.bde.addrHigh = le32_to_cpu(putPaddrHigh(rspbuf));
2634 bf_set(wqe_dfctl, &wqe->xmit_sequence.wge_ctl, 0);
2635 bf_set(wqe_ls, &wqe->xmit_sequence.wge_ctl, 1);
2636 bf_set(wqe_la, &wqe->xmit_sequence.wge_ctl, 0);
2637 bf_set(wqe_rctl, &wqe->xmit_sequence.wge_ctl, FC_RCTL_ELS4_REP);
2638 bf_set(wqe_type, &wqe->xmit_sequence.wge_ctl, FC_TYPE_NVME);
2641 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
2642 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2643 bf_set(wqe_xri_tag, &wqe->xmit_sequence.wqe_com, nvmewqe->sli4_xritag);
2646 bf_set(wqe_cmnd, &wqe->xmit_sequence.wqe_com,
2647 CMD_XMIT_SEQUENCE64_WQE);
2648 bf_set(wqe_ct, &wqe->xmit_sequence.wqe_com, SLI4_CT_RPI);
2649 bf_set(wqe_class, &wqe->xmit_sequence.wqe_com, CLASS3);
2650 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
2653 wqe->xmit_sequence.wqe_com.abort_tag = nvmewqe->iotag;
2656 bf_set(wqe_reqtag, &wqe->xmit_sequence.wqe_com, nvmewqe->iotag);
2657 /* Needs to be set by caller */
2658 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com, ctxp->oxid);
2661 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
2662 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE);
2663 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
2664 LPFC_WQE_LENLOC_WORD12);
2665 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
2668 bf_set(wqe_cqid, &wqe->xmit_sequence.wqe_com,
2669 LPFC_WQE_CQ_ID_DEFAULT);
2670 bf_set(wqe_cmd_type, &wqe->xmit_sequence.wqe_com,
2674 wqe->xmit_sequence.xmit_len = rspsize;
2677 nvmewqe->vport = phba->pport;
2678 nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT;
2679 nvmewqe->iocb_flag |= LPFC_IO_NVME_LS;
2681 /* Xmit NVMET response to remote NPORT <did> */
2682 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
2683 "6039 Xmit NVMET LS response to remote "
2684 "NPORT x%x iotag:x%x oxid:x%x size:x%x\n",
2685 ndlp->nlp_DID, nvmewqe->iotag, ctxp->oxid,
2689 nvme_wqe_free_wqeq_exit:
2690 nvmewqe->context2 = NULL;
2691 nvmewqe->context3 = NULL;
2692 lpfc_sli_release_iocbq(phba, nvmewqe);
2697 static struct lpfc_iocbq *
2698 lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba,
2699 struct lpfc_async_xchg_ctx *ctxp)
2701 struct nvmefc_tgt_fcp_req *rsp = &ctxp->hdlrctx.fcp_req;
2702 struct lpfc_nvmet_tgtport *tgtp;
2703 struct sli4_sge *sgl;
2704 struct lpfc_nodelist *ndlp;
2705 struct lpfc_iocbq *nvmewqe;
2706 struct scatterlist *sgel;
2707 union lpfc_wqe128 *wqe;
2708 struct ulp_bde64 *bde;
2709 dma_addr_t physaddr;
2711 bool use_pbde = false;
2714 if (!lpfc_is_link_up(phba)) {
2715 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2716 "6107 NVMET prep FCP wqe: link err:"
2717 "NPORT x%x oxid x%x ste %d\n",
2718 ctxp->sid, ctxp->oxid, ctxp->state);
2722 ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
2724 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2725 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
2726 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2727 "6108 NVMET prep FCP wqe: no ndlp: "
2728 "NPORT x%x oxid x%x ste %d\n",
2729 ctxp->sid, ctxp->oxid, ctxp->state);
2733 if (rsp->sg_cnt > lpfc_tgttemplate.max_sgl_segments) {
2734 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2735 "6109 NVMET prep FCP wqe: seg cnt err: "
2736 "NPORT x%x oxid x%x ste %d cnt %d\n",
2737 ctxp->sid, ctxp->oxid, ctxp->state,
2738 phba->cfg_nvme_seg_cnt);
2741 nsegs = rsp->sg_cnt;
2743 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2744 nvmewqe = ctxp->wqeq;
2745 if (nvmewqe == NULL) {
2746 /* Allocate buffer for command wqe */
2747 nvmewqe = ctxp->ctxbuf->iocbq;
2748 if (nvmewqe == NULL) {
2749 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2750 "6110 NVMET prep FCP wqe: No "
2751 "WQE: NPORT x%x oxid x%x ste %d\n",
2752 ctxp->sid, ctxp->oxid, ctxp->state);
2755 ctxp->wqeq = nvmewqe;
2756 xc = 0; /* create new XRI */
2757 nvmewqe->sli4_lxritag = NO_XRI;
2758 nvmewqe->sli4_xritag = NO_XRI;
2762 if (((ctxp->state == LPFC_NVME_STE_RCV) &&
2763 (ctxp->entry_cnt == 1)) ||
2764 (ctxp->state == LPFC_NVME_STE_DATA)) {
2765 wqe = &nvmewqe->wqe;
2767 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2768 "6111 Wrong state NVMET FCP: %d cnt %d\n",
2769 ctxp->state, ctxp->entry_cnt);
2773 sgl = (struct sli4_sge *)ctxp->ctxbuf->sglq->sgl;
2775 case NVMET_FCOP_READDATA:
2776 case NVMET_FCOP_READDATA_RSP:
2777 /* From the tsend template, initialize words 7 - 11 */
2778 memcpy(&wqe->words[7],
2779 &lpfc_tsend_cmd_template.words[7],
2780 sizeof(uint32_t) * 5);
2782 /* Words 0 - 2 : The first sg segment */
2784 physaddr = sg_dma_address(sgel);
2785 wqe->fcp_tsend.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2786 wqe->fcp_tsend.bde.tus.f.bdeSize = sg_dma_len(sgel);
2787 wqe->fcp_tsend.bde.addrLow = cpu_to_le32(putPaddrLow(physaddr));
2788 wqe->fcp_tsend.bde.addrHigh =
2789 cpu_to_le32(putPaddrHigh(physaddr));
2792 wqe->fcp_tsend.payload_offset_len = 0;
2795 wqe->fcp_tsend.relative_offset = ctxp->offset;
2798 wqe->fcp_tsend.reserved = 0;
2801 bf_set(wqe_ctxt_tag, &wqe->fcp_tsend.wqe_com,
2802 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2803 bf_set(wqe_xri_tag, &wqe->fcp_tsend.wqe_com,
2804 nvmewqe->sli4_xritag);
2806 /* Word 7 - set ar later */
2809 wqe->fcp_tsend.wqe_com.abort_tag = nvmewqe->iotag;
2812 bf_set(wqe_reqtag, &wqe->fcp_tsend.wqe_com, nvmewqe->iotag);
2813 bf_set(wqe_rcvoxid, &wqe->fcp_tsend.wqe_com, ctxp->oxid);
2815 /* Word 10 - set wqes later, in template xc=1 */
2817 bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 0);
2820 wqe->fcp_tsend.fcp_data_len = rsp->transfer_length;
2822 /* Setup 2 SKIP SGEs */
2826 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
2827 sgl->word2 = cpu_to_le32(sgl->word2);
2833 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
2834 sgl->word2 = cpu_to_le32(sgl->word2);
2837 if (rsp->op == NVMET_FCOP_READDATA_RSP) {
2838 atomic_inc(&tgtp->xmt_fcp_read_rsp);
2840 /* In template ar=1 wqes=0 sup=0 irsp=0 irsplen=0 */
2842 if (rsp->rsplen == LPFC_NVMET_SUCCESS_LEN) {
2843 if (ndlp->nlp_flag & NLP_SUPPRESS_RSP)
2845 &wqe->fcp_tsend.wqe_com, 1);
2847 bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 1);
2848 bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 1);
2849 bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com,
2850 ((rsp->rsplen >> 2) - 1));
2851 memcpy(&wqe->words[16], rsp->rspaddr,
2855 atomic_inc(&tgtp->xmt_fcp_read);
2857 /* In template ar=1 wqes=0 sup=0 irsp=0 irsplen=0 */
2858 bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 0);
2862 case NVMET_FCOP_WRITEDATA:
2863 /* From the treceive template, initialize words 3 - 11 */
2864 memcpy(&wqe->words[3],
2865 &lpfc_treceive_cmd_template.words[3],
2866 sizeof(uint32_t) * 9);
2868 /* Words 0 - 2 : First SGE is skipped, set invalid BDE type */
2869 wqe->fcp_treceive.bde.tus.f.bdeFlags = LPFC_SGE_TYPE_SKIP;
2870 wqe->fcp_treceive.bde.tus.f.bdeSize = 0;
2871 wqe->fcp_treceive.bde.addrLow = 0;
2872 wqe->fcp_treceive.bde.addrHigh = 0;
2875 wqe->fcp_treceive.relative_offset = ctxp->offset;
2878 bf_set(wqe_ctxt_tag, &wqe->fcp_treceive.wqe_com,
2879 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2880 bf_set(wqe_xri_tag, &wqe->fcp_treceive.wqe_com,
2881 nvmewqe->sli4_xritag);
2886 wqe->fcp_treceive.wqe_com.abort_tag = nvmewqe->iotag;
2889 bf_set(wqe_reqtag, &wqe->fcp_treceive.wqe_com, nvmewqe->iotag);
2890 bf_set(wqe_rcvoxid, &wqe->fcp_treceive.wqe_com, ctxp->oxid);
2892 /* Word 10 - in template xc=1 */
2894 bf_set(wqe_xc, &wqe->fcp_treceive.wqe_com, 0);
2896 /* Word 11 - check for pbde */
2897 if (nsegs == 1 && phba->cfg_enable_pbde) {
2899 /* Word 11 - PBDE bit already preset by template */
2901 /* Overwrite default template setting */
2902 bf_set(wqe_pbde, &wqe->fcp_treceive.wqe_com, 0);
2906 wqe->fcp_tsend.fcp_data_len = rsp->transfer_length;
2908 /* Setup 2 SKIP SGEs */
2912 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
2913 sgl->word2 = cpu_to_le32(sgl->word2);
2919 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
2920 sgl->word2 = cpu_to_le32(sgl->word2);
2923 atomic_inc(&tgtp->xmt_fcp_write);
2926 case NVMET_FCOP_RSP:
2927 /* From the treceive template, initialize words 4 - 11 */
2928 memcpy(&wqe->words[4],
2929 &lpfc_trsp_cmd_template.words[4],
2930 sizeof(uint32_t) * 8);
2933 physaddr = rsp->rspdma;
2934 wqe->fcp_trsp.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2935 wqe->fcp_trsp.bde.tus.f.bdeSize = rsp->rsplen;
2936 wqe->fcp_trsp.bde.addrLow =
2937 cpu_to_le32(putPaddrLow(physaddr));
2938 wqe->fcp_trsp.bde.addrHigh =
2939 cpu_to_le32(putPaddrHigh(physaddr));
2942 wqe->fcp_trsp.response_len = rsp->rsplen;
2945 bf_set(wqe_ctxt_tag, &wqe->fcp_trsp.wqe_com,
2946 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2947 bf_set(wqe_xri_tag, &wqe->fcp_trsp.wqe_com,
2948 nvmewqe->sli4_xritag);
2953 wqe->fcp_trsp.wqe_com.abort_tag = nvmewqe->iotag;
2956 bf_set(wqe_reqtag, &wqe->fcp_trsp.wqe_com, nvmewqe->iotag);
2957 bf_set(wqe_rcvoxid, &wqe->fcp_trsp.wqe_com, ctxp->oxid);
2961 bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, 1);
2964 /* In template wqes=0 irsp=0 irsplen=0 - good response */
2965 if (rsp->rsplen != LPFC_NVMET_SUCCESS_LEN) {
2966 /* Bad response - embed it */
2967 bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 1);
2968 bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 1);
2969 bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com,
2970 ((rsp->rsplen >> 2) - 1));
2971 memcpy(&wqe->words[16], rsp->rspaddr, rsp->rsplen);
2975 wqe->fcp_trsp.rsvd_12_15[0] = 0;
2977 /* Use rspbuf, NOT sg list */
2980 atomic_inc(&tgtp->xmt_fcp_rsp);
2984 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
2985 "6064 Unknown Rsp Op %d\n",
2991 nvmewqe->vport = phba->pport;
2992 nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT;
2993 nvmewqe->context1 = ndlp;
2995 for_each_sg(rsp->sg, sgel, nsegs, i) {
2996 physaddr = sg_dma_address(sgel);
2997 cnt = sg_dma_len(sgel);
2998 sgl->addr_hi = putPaddrHigh(physaddr);
2999 sgl->addr_lo = putPaddrLow(physaddr);
3001 bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA);
3002 bf_set(lpfc_sli4_sge_offset, sgl, ctxp->offset);
3003 if ((i+1) == rsp->sg_cnt)
3004 bf_set(lpfc_sli4_sge_last, sgl, 1);
3005 sgl->word2 = cpu_to_le32(sgl->word2);
3006 sgl->sge_len = cpu_to_le32(cnt);
3008 ctxp->offset += cnt;
3011 bde = (struct ulp_bde64 *)&wqe->words[13];
3013 /* decrement sgl ptr backwards once to first data sge */
3016 /* Words 13-15 (PBDE) */
3017 bde->addrLow = sgl->addr_lo;
3018 bde->addrHigh = sgl->addr_hi;
3019 bde->tus.f.bdeSize = le32_to_cpu(sgl->sge_len);
3020 bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
3021 bde->tus.w = cpu_to_le32(bde->tus.w);
3023 memset(bde, 0, sizeof(struct ulp_bde64));
3025 ctxp->state = LPFC_NVME_STE_DATA;
3031 * lpfc_nvmet_sol_fcp_abort_cmp - Completion handler for ABTS
3032 * @phba: Pointer to HBA context object.
3033 * @cmdwqe: Pointer to driver command WQE object.
3034 * @wcqe: Pointer to driver response CQE object.
3036 * The function is called from SLI ring event handler with no
3037 * lock held. This function is the completion handler for NVME ABTS for FCP cmds
3038 * The function frees memory resources used for the NVME commands.
3041 lpfc_nvmet_sol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
3042 struct lpfc_wcqe_complete *wcqe)
3044 struct lpfc_async_xchg_ctx *ctxp;
3045 struct lpfc_nvmet_tgtport *tgtp;
3047 unsigned long flags;
3048 bool released = false;
3050 ctxp = cmdwqe->context2;
3051 result = wcqe->parameter;
3053 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3054 if (ctxp->flag & LPFC_NVME_ABORT_OP)
3055 atomic_inc(&tgtp->xmt_fcp_abort_cmpl);
3057 spin_lock_irqsave(&ctxp->ctxlock, flags);
3058 ctxp->state = LPFC_NVME_STE_DONE;
3060 /* Check if we already received a free context call
3061 * and we have completed processing an abort situation.
3063 if ((ctxp->flag & LPFC_NVME_CTX_RLS) &&
3064 !(ctxp->flag & LPFC_NVME_XBUSY)) {
3065 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3066 list_del_init(&ctxp->list);
3067 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3070 ctxp->flag &= ~LPFC_NVME_ABORT_OP;
3071 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3072 atomic_inc(&tgtp->xmt_abort_rsp);
3074 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3075 "6165 ABORT cmpl: oxid x%x flg x%x (%d) "
3076 "WCQE: %08x %08x %08x %08x\n",
3077 ctxp->oxid, ctxp->flag, released,
3078 wcqe->word0, wcqe->total_data_placed,
3079 result, wcqe->word3);
3081 cmdwqe->context2 = NULL;
3082 cmdwqe->context3 = NULL;
3084 * if transport has released ctx, then can reuse it. Otherwise,
3085 * will be recycled by transport release call.
3088 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
3090 /* This is the iocbq for the abort, not the command */
3091 lpfc_sli_release_iocbq(phba, cmdwqe);
3093 /* Since iaab/iaar are NOT set, there is no work left.
3094 * For LPFC_NVME_XBUSY, lpfc_sli4_nvmet_xri_aborted
3095 * should have been called already.
3100 * lpfc_nvmet_unsol_fcp_abort_cmp - Completion handler for ABTS
3101 * @phba: Pointer to HBA context object.
3102 * @cmdwqe: Pointer to driver command WQE object.
3103 * @wcqe: Pointer to driver response CQE object.
3105 * The function is called from SLI ring event handler with no
3106 * lock held. This function is the completion handler for NVME ABTS for FCP cmds
3107 * The function frees memory resources used for the NVME commands.
3110 lpfc_nvmet_unsol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
3111 struct lpfc_wcqe_complete *wcqe)
3113 struct lpfc_async_xchg_ctx *ctxp;
3114 struct lpfc_nvmet_tgtport *tgtp;
3115 unsigned long flags;
3117 bool released = false;
3119 ctxp = cmdwqe->context2;
3120 result = wcqe->parameter;
3123 /* if context is clear, related io alrady complete */
3124 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3125 "6070 ABTS cmpl: WCQE: %08x %08x %08x %08x\n",
3126 wcqe->word0, wcqe->total_data_placed,
3127 result, wcqe->word3);
3131 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3132 spin_lock_irqsave(&ctxp->ctxlock, flags);
3133 if (ctxp->flag & LPFC_NVME_ABORT_OP)
3134 atomic_inc(&tgtp->xmt_fcp_abort_cmpl);
3137 if (ctxp->state != LPFC_NVME_STE_ABORT) {
3138 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3139 "6112 ABTS Wrong state:%d oxid x%x\n",
3140 ctxp->state, ctxp->oxid);
3143 /* Check if we already received a free context call
3144 * and we have completed processing an abort situation.
3146 ctxp->state = LPFC_NVME_STE_DONE;
3147 if ((ctxp->flag & LPFC_NVME_CTX_RLS) &&
3148 !(ctxp->flag & LPFC_NVME_XBUSY)) {
3149 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3150 list_del_init(&ctxp->list);
3151 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3154 ctxp->flag &= ~LPFC_NVME_ABORT_OP;
3155 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3156 atomic_inc(&tgtp->xmt_abort_rsp);
3158 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3159 "6316 ABTS cmpl oxid x%x flg x%x (%x) "
3160 "WCQE: %08x %08x %08x %08x\n",
3161 ctxp->oxid, ctxp->flag, released,
3162 wcqe->word0, wcqe->total_data_placed,
3163 result, wcqe->word3);
3165 cmdwqe->context2 = NULL;
3166 cmdwqe->context3 = NULL;
3168 * if transport has released ctx, then can reuse it. Otherwise,
3169 * will be recycled by transport release call.
3172 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
3174 /* Since iaab/iaar are NOT set, there is no work left.
3175 * For LPFC_NVME_XBUSY, lpfc_sli4_nvmet_xri_aborted
3176 * should have been called already.
3181 * lpfc_nvmet_xmt_ls_abort_cmp - Completion handler for ABTS
3182 * @phba: Pointer to HBA context object.
3183 * @cmdwqe: Pointer to driver command WQE object.
3184 * @wcqe: Pointer to driver response CQE object.
3186 * The function is called from SLI ring event handler with no
3187 * lock held. This function is the completion handler for NVME ABTS for LS cmds
3188 * The function frees memory resources used for the NVME commands.
3191 lpfc_nvmet_xmt_ls_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
3192 struct lpfc_wcqe_complete *wcqe)
3194 struct lpfc_async_xchg_ctx *ctxp;
3195 struct lpfc_nvmet_tgtport *tgtp;
3198 ctxp = cmdwqe->context2;
3199 result = wcqe->parameter;
3201 if (phba->nvmet_support) {
3202 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3203 atomic_inc(&tgtp->xmt_ls_abort_cmpl);
3206 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3207 "6083 Abort cmpl: ctx x%px WCQE:%08x %08x %08x %08x\n",
3208 ctxp, wcqe->word0, wcqe->total_data_placed,
3209 result, wcqe->word3);
3212 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3213 "6415 NVMET LS Abort No ctx: WCQE: "
3214 "%08x %08x %08x %08x\n",
3215 wcqe->word0, wcqe->total_data_placed,
3216 result, wcqe->word3);
3218 lpfc_sli_release_iocbq(phba, cmdwqe);
3222 if (ctxp->state != LPFC_NVME_STE_LS_ABORT) {
3223 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3224 "6416 NVMET LS abort cmpl state mismatch: "
3225 "oxid x%x: %d %d\n",
3226 ctxp->oxid, ctxp->state, ctxp->entry_cnt);
3229 cmdwqe->context2 = NULL;
3230 cmdwqe->context3 = NULL;
3231 lpfc_sli_release_iocbq(phba, cmdwqe);
3236 lpfc_nvmet_unsol_issue_abort(struct lpfc_hba *phba,
3237 struct lpfc_async_xchg_ctx *ctxp,
3238 uint32_t sid, uint16_t xri)
3240 struct lpfc_nvmet_tgtport *tgtp = NULL;
3241 struct lpfc_iocbq *abts_wqeq;
3242 union lpfc_wqe128 *wqe_abts;
3243 struct lpfc_nodelist *ndlp;
3245 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3246 "6067 ABTS: sid %x xri x%x/x%x\n",
3247 sid, xri, ctxp->wqeq->sli4_xritag);
3249 if (phba->nvmet_support && phba->targetport)
3250 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3252 ndlp = lpfc_findnode_did(phba->pport, sid);
3254 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3255 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
3257 atomic_inc(&tgtp->xmt_abort_rsp_error);
3258 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3259 "6134 Drop ABTS - wrong NDLP state x%x.\n",
3260 (ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE);
3262 /* No failure to an ABTS request. */
3266 abts_wqeq = ctxp->wqeq;
3267 wqe_abts = &abts_wqeq->wqe;
3270 * Since we zero the whole WQE, we need to ensure we set the WQE fields
3271 * that were initialized in lpfc_sli4_nvmet_alloc.
3273 memset(wqe_abts, 0, sizeof(union lpfc_wqe));
3276 bf_set(wqe_dfctl, &wqe_abts->xmit_sequence.wge_ctl, 0);
3277 bf_set(wqe_ls, &wqe_abts->xmit_sequence.wge_ctl, 1);
3278 bf_set(wqe_la, &wqe_abts->xmit_sequence.wge_ctl, 0);
3279 bf_set(wqe_rctl, &wqe_abts->xmit_sequence.wge_ctl, FC_RCTL_BA_ABTS);
3280 bf_set(wqe_type, &wqe_abts->xmit_sequence.wge_ctl, FC_TYPE_BLS);
3283 bf_set(wqe_ctxt_tag, &wqe_abts->xmit_sequence.wqe_com,
3284 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
3285 bf_set(wqe_xri_tag, &wqe_abts->xmit_sequence.wqe_com,
3286 abts_wqeq->sli4_xritag);
3289 bf_set(wqe_cmnd, &wqe_abts->xmit_sequence.wqe_com,
3290 CMD_XMIT_SEQUENCE64_WQE);
3291 bf_set(wqe_ct, &wqe_abts->xmit_sequence.wqe_com, SLI4_CT_RPI);
3292 bf_set(wqe_class, &wqe_abts->xmit_sequence.wqe_com, CLASS3);
3293 bf_set(wqe_pu, &wqe_abts->xmit_sequence.wqe_com, 0);
3296 wqe_abts->xmit_sequence.wqe_com.abort_tag = abts_wqeq->iotag;
3299 bf_set(wqe_reqtag, &wqe_abts->xmit_sequence.wqe_com, abts_wqeq->iotag);
3300 /* Needs to be set by caller */
3301 bf_set(wqe_rcvoxid, &wqe_abts->xmit_sequence.wqe_com, xri);
3304 bf_set(wqe_iod, &wqe_abts->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE);
3305 bf_set(wqe_lenloc, &wqe_abts->xmit_sequence.wqe_com,
3306 LPFC_WQE_LENLOC_WORD12);
3307 bf_set(wqe_ebde_cnt, &wqe_abts->xmit_sequence.wqe_com, 0);
3308 bf_set(wqe_qosd, &wqe_abts->xmit_sequence.wqe_com, 0);
3311 bf_set(wqe_cqid, &wqe_abts->xmit_sequence.wqe_com,
3312 LPFC_WQE_CQ_ID_DEFAULT);
3313 bf_set(wqe_cmd_type, &wqe_abts->xmit_sequence.wqe_com,
3316 abts_wqeq->vport = phba->pport;
3317 abts_wqeq->context1 = ndlp;
3318 abts_wqeq->context2 = ctxp;
3319 abts_wqeq->context3 = NULL;
3320 abts_wqeq->rsvd2 = 0;
3321 /* hba_wqidx should already be setup from command we are aborting */
3322 abts_wqeq->iocb.ulpCommand = CMD_XMIT_SEQUENCE64_CR;
3323 abts_wqeq->iocb.ulpLe = 1;
3325 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3326 "6069 Issue ABTS to xri x%x reqtag x%x\n",
3327 xri, abts_wqeq->iotag);
3332 * lpfc_nvmet_prep_abort_wqe - set up 'abort' work queue entry.
3333 * @pwqeq: Pointer to command iocb.
3334 * @xritag: Tag that uniqely identifies the local exchange resource.
3335 * @opt: Option bits -
3336 * bit 0 = inhibit sending abts on the link
3338 * This function is called with hbalock held.
3341 lpfc_nvmet_prep_abort_wqe(struct lpfc_iocbq *pwqeq, u16 xritag, u8 opt)
3343 union lpfc_wqe128 *wqe = &pwqeq->wqe;
3345 /* WQEs are reused. Clear stale data and set key fields to
3346 * zero like ia, iaab, iaar, xri_tag, and ctxt_tag.
3348 memset(wqe, 0, sizeof(*wqe));
3350 if (opt & INHIBIT_ABORT)
3351 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
3352 /* Abort specified xri tag, with the mask deliberately zeroed */
3353 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
3355 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
3357 /* Abort the I/O associated with this outstanding exchange ID. */
3358 wqe->abort_cmd.wqe_com.abort_tag = xritag;
3360 /* iotag for the wqe completion. */
3361 bf_set(wqe_reqtag, &wqe->abort_cmd.wqe_com, pwqeq->iotag);
3363 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
3364 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
3366 bf_set(wqe_cmd_type, &wqe->abort_cmd.wqe_com, OTHER_COMMAND);
3367 bf_set(wqe_wqec, &wqe->abort_cmd.wqe_com, 1);
3368 bf_set(wqe_cqid, &wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
3372 lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *phba,
3373 struct lpfc_async_xchg_ctx *ctxp,
3374 uint32_t sid, uint16_t xri)
3376 struct lpfc_nvmet_tgtport *tgtp;
3377 struct lpfc_iocbq *abts_wqeq;
3378 struct lpfc_nodelist *ndlp;
3379 unsigned long flags;
3383 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3385 ctxp->wqeq = ctxp->ctxbuf->iocbq;
3386 ctxp->wqeq->hba_wqidx = 0;
3389 ndlp = lpfc_findnode_did(phba->pport, sid);
3391 ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3392 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
3393 atomic_inc(&tgtp->xmt_abort_rsp_error);
3394 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3395 "6160 Drop ABORT - wrong NDLP state x%x.\n",
3396 (ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE);
3398 /* No failure to an ABTS request. */
3399 spin_lock_irqsave(&ctxp->ctxlock, flags);
3400 ctxp->flag &= ~LPFC_NVME_ABORT_OP;
3401 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3405 /* Issue ABTS for this WQE based on iotag */
3406 ctxp->abort_wqeq = lpfc_sli_get_iocbq(phba);
3407 spin_lock_irqsave(&ctxp->ctxlock, flags);
3408 if (!ctxp->abort_wqeq) {
3409 atomic_inc(&tgtp->xmt_abort_rsp_error);
3410 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3411 "6161 ABORT failed: No wqeqs: "
3412 "xri: x%x\n", ctxp->oxid);
3413 /* No failure to an ABTS request. */
3414 ctxp->flag &= ~LPFC_NVME_ABORT_OP;
3415 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3418 abts_wqeq = ctxp->abort_wqeq;
3419 ctxp->state = LPFC_NVME_STE_ABORT;
3420 opt = (ctxp->flag & LPFC_NVME_ABTS_RCV) ? INHIBIT_ABORT : 0;
3421 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3423 /* Announce entry to new IO submit field. */
3424 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
3425 "6162 ABORT Request to rport DID x%06x "
3426 "for xri x%x x%x\n",
3427 ctxp->sid, ctxp->oxid, ctxp->wqeq->sli4_xritag);
3429 /* If the hba is getting reset, this flag is set. It is
3430 * cleared when the reset is complete and rings reestablished.
3432 spin_lock_irqsave(&phba->hbalock, flags);
3433 /* driver queued commands are in process of being flushed */
3434 if (phba->hba_flag & HBA_IOQ_FLUSH) {
3435 spin_unlock_irqrestore(&phba->hbalock, flags);
3436 atomic_inc(&tgtp->xmt_abort_rsp_error);
3437 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3438 "6163 Driver in reset cleanup - flushing "
3439 "NVME Req now. hba_flag x%x oxid x%x\n",
3440 phba->hba_flag, ctxp->oxid);
3441 lpfc_sli_release_iocbq(phba, abts_wqeq);
3442 spin_lock_irqsave(&ctxp->ctxlock, flags);
3443 ctxp->flag &= ~LPFC_NVME_ABORT_OP;
3444 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3448 /* Outstanding abort is in progress */
3449 if (abts_wqeq->iocb_flag & LPFC_DRIVER_ABORTED) {
3450 spin_unlock_irqrestore(&phba->hbalock, flags);
3451 atomic_inc(&tgtp->xmt_abort_rsp_error);
3452 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3453 "6164 Outstanding NVME I/O Abort Request "
3454 "still pending on oxid x%x\n",
3456 lpfc_sli_release_iocbq(phba, abts_wqeq);
3457 spin_lock_irqsave(&ctxp->ctxlock, flags);
3458 ctxp->flag &= ~LPFC_NVME_ABORT_OP;
3459 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3463 /* Ready - mark outstanding as aborted by driver. */
3464 abts_wqeq->iocb_flag |= LPFC_DRIVER_ABORTED;
3466 lpfc_nvmet_prep_abort_wqe(abts_wqeq, ctxp->wqeq->sli4_xritag, opt);
3468 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
3469 abts_wqeq->hba_wqidx = ctxp->wqeq->hba_wqidx;
3470 abts_wqeq->wqe_cmpl = lpfc_nvmet_sol_fcp_abort_cmp;
3471 abts_wqeq->iocb_cmpl = NULL;
3472 abts_wqeq->iocb_flag |= LPFC_IO_NVME;
3473 abts_wqeq->context2 = ctxp;
3474 abts_wqeq->vport = phba->pport;
3476 ctxp->hdwq = &phba->sli4_hba.hdwq[abts_wqeq->hba_wqidx];
3478 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, abts_wqeq);
3479 spin_unlock_irqrestore(&phba->hbalock, flags);
3480 if (rc == WQE_SUCCESS) {
3481 atomic_inc(&tgtp->xmt_abort_sol);
3485 atomic_inc(&tgtp->xmt_abort_rsp_error);
3486 spin_lock_irqsave(&ctxp->ctxlock, flags);
3487 ctxp->flag &= ~LPFC_NVME_ABORT_OP;
3488 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3489 lpfc_sli_release_iocbq(phba, abts_wqeq);
3490 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3491 "6166 Failed ABORT issue_wqe with status x%x "
3498 lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *phba,
3499 struct lpfc_async_xchg_ctx *ctxp,
3500 uint32_t sid, uint16_t xri)
3502 struct lpfc_nvmet_tgtport *tgtp;
3503 struct lpfc_iocbq *abts_wqeq;
3504 unsigned long flags;
3505 bool released = false;
3508 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3510 ctxp->wqeq = ctxp->ctxbuf->iocbq;
3511 ctxp->wqeq->hba_wqidx = 0;
3514 if (ctxp->state == LPFC_NVME_STE_FREE) {
3515 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3516 "6417 NVMET ABORT ctx freed %d %d oxid x%x\n",
3517 ctxp->state, ctxp->entry_cnt, ctxp->oxid);
3521 ctxp->state = LPFC_NVME_STE_ABORT;
3523 rc = lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri);
3527 spin_lock_irqsave(&phba->hbalock, flags);
3528 abts_wqeq = ctxp->wqeq;
3529 abts_wqeq->wqe_cmpl = lpfc_nvmet_unsol_fcp_abort_cmp;
3530 abts_wqeq->iocb_cmpl = NULL;
3531 abts_wqeq->iocb_flag |= LPFC_IO_NVMET;
3533 ctxp->hdwq = &phba->sli4_hba.hdwq[abts_wqeq->hba_wqidx];
3535 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, abts_wqeq);
3536 spin_unlock_irqrestore(&phba->hbalock, flags);
3537 if (rc == WQE_SUCCESS) {
3542 spin_lock_irqsave(&ctxp->ctxlock, flags);
3543 if (ctxp->flag & LPFC_NVME_CTX_RLS) {
3544 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3545 list_del_init(&ctxp->list);
3546 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
3549 ctxp->flag &= ~(LPFC_NVME_ABORT_OP | LPFC_NVME_CTX_RLS);
3550 spin_unlock_irqrestore(&ctxp->ctxlock, flags);
3552 atomic_inc(&tgtp->xmt_abort_rsp_error);
3553 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3554 "6135 Failed to Issue ABTS for oxid x%x. Status x%x "
3556 ctxp->oxid, rc, released);
3558 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
3563 * lpfc_nvme_unsol_ls_issue_abort - issue ABTS on an exchange received
3564 * via async frame receive where the frame is not handled.
3565 * @phba: pointer to adapter structure
3566 * @ctxp: pointer to the asynchronously received received sequence
3567 * @sid: address of the remote port to send the ABTS to
3568 * @xri: oxid value to for the ABTS (other side's exchange id).
3571 lpfc_nvme_unsol_ls_issue_abort(struct lpfc_hba *phba,
3572 struct lpfc_async_xchg_ctx *ctxp,
3573 uint32_t sid, uint16_t xri)
3575 struct lpfc_nvmet_tgtport *tgtp = NULL;
3576 struct lpfc_iocbq *abts_wqeq;
3577 unsigned long flags;
3580 if ((ctxp->state == LPFC_NVME_STE_LS_RCV && ctxp->entry_cnt == 1) ||
3581 (ctxp->state == LPFC_NVME_STE_LS_RSP && ctxp->entry_cnt == 2)) {
3582 ctxp->state = LPFC_NVME_STE_LS_ABORT;
3585 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3586 "6418 NVMET LS abort state mismatch "
3588 ctxp->oxid, ctxp->state, ctxp->entry_cnt);
3589 ctxp->state = LPFC_NVME_STE_LS_ABORT;
3592 if (phba->nvmet_support && phba->targetport)
3593 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3596 /* Issue ABTS for this WQE based on iotag */
3597 ctxp->wqeq = lpfc_sli_get_iocbq(phba);
3599 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3600 "6068 Abort failed: No wqeqs: "
3602 /* No failure to an ABTS request. */
3607 abts_wqeq = ctxp->wqeq;
3609 if (lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri) == 0) {
3614 spin_lock_irqsave(&phba->hbalock, flags);
3615 abts_wqeq->wqe_cmpl = lpfc_nvmet_xmt_ls_abort_cmp;
3616 abts_wqeq->iocb_cmpl = NULL;
3617 abts_wqeq->iocb_flag |= LPFC_IO_NVME_LS;
3618 rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, abts_wqeq);
3619 spin_unlock_irqrestore(&phba->hbalock, flags);
3620 if (rc == WQE_SUCCESS) {
3622 atomic_inc(&tgtp->xmt_abort_unsol);
3627 atomic_inc(&tgtp->xmt_abort_rsp_error);
3628 abts_wqeq->context2 = NULL;
3629 abts_wqeq->context3 = NULL;
3630 lpfc_sli_release_iocbq(phba, abts_wqeq);
3631 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3632 "6056 Failed to Issue ABTS. Status x%x\n", rc);
3637 * lpfc_nvmet_invalidate_host
3639 * @phba: pointer to the driver instance bound to an adapter port.
3640 * @ndlp: pointer to an lpfc_nodelist type
3642 * This routine upcalls the nvmet transport to invalidate an NVME
3643 * host to which this target instance had active connections.
3646 lpfc_nvmet_invalidate_host(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
3649 struct lpfc_nvmet_tgtport *tgtp;
3651 lpfc_printf_log(phba, KERN_INFO,
3652 LOG_NVME | LOG_NVME_ABTS | LOG_NVME_DISC,
3653 "6203 Invalidating hosthandle x%px\n",
3656 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
3657 atomic_set(&tgtp->state, LPFC_NVMET_INV_HOST_ACTIVE);
3659 spin_lock_irq(&ndlp->lock);
3660 ndlp_has_hh = ndlp->fc4_xpt_flags & NLP_XPT_HAS_HH;
3661 spin_unlock_irq(&ndlp->lock);
3663 /* Do not invalidate any nodes that do not have a hosthandle.
3664 * The host_release callbk will cause a node reference
3665 * count imbalance and a crash.
3668 lpfc_printf_log(phba, KERN_INFO,
3669 LOG_NVME | LOG_NVME_ABTS | LOG_NVME_DISC,
3670 "6204 Skip invalidate on node x%px DID x%x\n",
3671 ndlp, ndlp->nlp_DID);
3675 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
3676 /* Need to get the nvmet_fc_target_port pointer here.*/
3677 nvmet_fc_invalidate_host(phba->targetport, ndlp);