1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
6 * Copyright (C) 2009-2015 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
10 * This program is free software; you can redistribute it and/or *
11 * modify it under the terms of version 2 of the GNU General *
12 * Public License as published by the Free Software Foundation. *
13 * This program is distributed in the hope that it will be useful. *
14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
18 * TO BE LEGALLY INVALID. See the GNU General Public License for *
19 * more details, a copy of which can be found in the file COPYING *
20 * included with this package. *
21 *******************************************************************/
23 #include <linux/interrupt.h>
24 #include <linux/mempool.h>
25 #include <linux/pci.h>
26 #include <linux/slab.h>
27 #include <linux/delay.h>
28 #include <linux/list.h>
29 #include <linux/bsg-lib.h>
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_host.h>
33 #include <scsi/scsi_transport_fc.h>
34 #include <scsi/scsi_bsg_fc.h>
35 #include <scsi/fc/fc_fs.h>
40 #include "lpfc_sli4.h"
43 #include "lpfc_disc.h"
44 #include "lpfc_scsi.h"
46 #include "lpfc_logmsg.h"
47 #include "lpfc_crtn.h"
48 #include "lpfc_debugfs.h"
49 #include "lpfc_vport.h"
50 #include "lpfc_version.h"
52 struct lpfc_bsg_event {
53 struct list_head node;
57 /* Event type and waiter identifiers */
62 /* next two flags are here for the auto-delete logic */
63 unsigned long wait_time_stamp;
66 /* seen and not seen events */
67 struct list_head events_to_get;
68 struct list_head events_to_see;
70 /* driver data associated with the job */
74 struct lpfc_bsg_iocb {
75 struct lpfc_iocbq *cmdiocbq;
76 struct lpfc_dmabuf *rmp;
77 struct lpfc_nodelist *ndlp;
80 struct lpfc_bsg_mbox {
83 struct lpfc_dmabuf *dmabuffers; /* for BIU diags */
84 uint8_t *ext; /* extended mailbox data */
85 uint32_t mbOffset; /* from app */
86 uint32_t inExtWLen; /* from app */
87 uint32_t outExtWLen; /* from app */
90 #define MENLO_DID 0x0000FC0E
92 struct lpfc_bsg_menlo {
93 struct lpfc_iocbq *cmdiocbq;
94 struct lpfc_dmabuf *rmp;
101 struct bsg_job_data {
103 struct bsg_job *set_job; /* job waiting for this iocb to finish */
105 struct lpfc_bsg_event *evt;
106 struct lpfc_bsg_iocb iocb;
107 struct lpfc_bsg_mbox mbox;
108 struct lpfc_bsg_menlo menlo;
113 struct list_head node;
120 #define BUF_SZ_4K 4096
121 #define SLI_CT_ELX_LOOPBACK 0x10
123 enum ELX_LOOPBACK_CMD {
124 ELX_LOOPBACK_XRI_SETUP,
128 #define ELX_LOOPBACK_HEADER_SZ \
129 (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un)
131 struct lpfc_dmabufext {
132 struct lpfc_dmabuf dma;
138 lpfc_free_bsg_buffers(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist)
140 struct lpfc_dmabuf *mlast, *next_mlast;
143 list_for_each_entry_safe(mlast, next_mlast, &mlist->list,
145 lpfc_mbuf_free(phba, mlast->virt, mlast->phys);
146 list_del(&mlast->list);
149 lpfc_mbuf_free(phba, mlist->virt, mlist->phys);
155 static struct lpfc_dmabuf *
156 lpfc_alloc_bsg_buffers(struct lpfc_hba *phba, unsigned int size,
157 int outbound_buffers, struct ulp_bde64 *bpl,
160 struct lpfc_dmabuf *mlist = NULL;
161 struct lpfc_dmabuf *mp;
162 unsigned int bytes_left = size;
164 /* Verify we can support the size specified */
165 if (!size || (size > (*bpl_entries * LPFC_BPL_SIZE)))
168 /* Determine the number of dma buffers to allocate */
169 *bpl_entries = (size % LPFC_BPL_SIZE ? size/LPFC_BPL_SIZE + 1 :
172 /* Allocate dma buffer and place in BPL passed */
174 /* Allocate dma buffer */
175 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
178 lpfc_free_bsg_buffers(phba, mlist);
182 INIT_LIST_HEAD(&mp->list);
183 mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
188 lpfc_free_bsg_buffers(phba, mlist);
192 /* Queue it to a linked list */
196 list_add_tail(&mp->list, &mlist->list);
198 /* Add buffer to buffer pointer list */
199 if (outbound_buffers)
200 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
202 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
203 bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys));
204 bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys));
205 bpl->tus.f.bdeSize = (uint16_t)
206 (bytes_left >= LPFC_BPL_SIZE ? LPFC_BPL_SIZE :
208 bytes_left -= bpl->tus.f.bdeSize;
209 bpl->tus.w = le32_to_cpu(bpl->tus.w);
216 lpfc_bsg_copy_data(struct lpfc_dmabuf *dma_buffers,
217 struct bsg_buffer *bsg_buffers,
218 unsigned int bytes_to_transfer, int to_buffers)
221 struct lpfc_dmabuf *mp;
222 unsigned int transfer_bytes, bytes_copied = 0;
223 unsigned int sg_offset, dma_offset;
224 unsigned char *dma_address, *sg_address;
225 LIST_HEAD(temp_list);
226 struct sg_mapping_iter miter;
228 unsigned int sg_flags = SG_MITER_ATOMIC;
231 list_splice_init(&dma_buffers->list, &temp_list);
232 list_add(&dma_buffers->list, &temp_list);
235 sg_flags |= SG_MITER_FROM_SG;
237 sg_flags |= SG_MITER_TO_SG;
238 sg_miter_start(&miter, bsg_buffers->sg_list, bsg_buffers->sg_cnt,
240 local_irq_save(flags);
241 sg_valid = sg_miter_next(&miter);
242 list_for_each_entry(mp, &temp_list, list) {
244 while (bytes_to_transfer && sg_valid &&
245 (dma_offset < LPFC_BPL_SIZE)) {
246 dma_address = mp->virt + dma_offset;
248 /* Continue previous partial transfer of sg */
249 sg_address = miter.addr + sg_offset;
250 transfer_bytes = miter.length - sg_offset;
252 sg_address = miter.addr;
253 transfer_bytes = miter.length;
255 if (bytes_to_transfer < transfer_bytes)
256 transfer_bytes = bytes_to_transfer;
257 if (transfer_bytes > (LPFC_BPL_SIZE - dma_offset))
258 transfer_bytes = LPFC_BPL_SIZE - dma_offset;
260 memcpy(dma_address, sg_address, transfer_bytes);
262 memcpy(sg_address, dma_address, transfer_bytes);
263 dma_offset += transfer_bytes;
264 sg_offset += transfer_bytes;
265 bytes_to_transfer -= transfer_bytes;
266 bytes_copied += transfer_bytes;
267 if (sg_offset >= miter.length) {
269 sg_valid = sg_miter_next(&miter);
273 sg_miter_stop(&miter);
274 local_irq_restore(flags);
275 list_del_init(&dma_buffers->list);
276 list_splice(&temp_list, &dma_buffers->list);
281 * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler
282 * @phba: Pointer to HBA context object.
283 * @cmdiocbq: Pointer to command iocb.
284 * @rspiocbq: Pointer to response iocb.
286 * This function is the completion handler for iocbs issued using
287 * lpfc_bsg_send_mgmt_cmd function. This function is called by the
288 * ring event handler function without any lock held. This function
289 * can be called from both worker thread context and interrupt
290 * context. This function also can be called from another thread which
291 * cleans up the SLI layer objects.
292 * This function copies the contents of the response iocb to the
293 * response iocb memory object provided by the caller of
294 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
295 * sleeps for the iocb completion.
298 lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba,
299 struct lpfc_iocbq *cmdiocbq,
300 struct lpfc_iocbq *rspiocbq)
302 struct bsg_job_data *dd_data;
304 struct fc_bsg_reply *bsg_reply;
306 struct lpfc_dmabuf *bmp, *cmp, *rmp;
307 struct lpfc_nodelist *ndlp;
308 struct lpfc_bsg_iocb *iocb;
310 unsigned int rsp_size;
313 dd_data = cmdiocbq->context1;
315 /* Determine if job has been aborted */
316 spin_lock_irqsave(&phba->ct_ev_lock, flags);
317 job = dd_data->set_job;
319 bsg_reply = job->reply;
320 /* Prevent timeout handling from trying to abort job */
323 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
325 /* Close the timeout handler abort window */
326 spin_lock_irqsave(&phba->hbalock, flags);
327 cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
328 spin_unlock_irqrestore(&phba->hbalock, flags);
330 iocb = &dd_data->context_un.iocb;
333 cmp = cmdiocbq->context2;
334 bmp = cmdiocbq->context3;
335 rsp = &rspiocbq->iocb;
337 /* Copy the completed data or set the error status */
340 if (rsp->ulpStatus) {
341 if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
342 switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
343 case IOERR_SEQUENCE_TIMEOUT:
346 case IOERR_INVALID_RPI:
357 rsp_size = rsp->un.genreq64.bdl.bdeSize;
358 bsg_reply->reply_payload_rcv_len =
359 lpfc_bsg_copy_data(rmp, &job->reply_payload,
364 lpfc_free_bsg_buffers(phba, cmp);
365 lpfc_free_bsg_buffers(phba, rmp);
366 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
368 lpfc_sli_release_iocbq(phba, cmdiocbq);
372 /* Complete the job if the job is still active */
375 bsg_reply->result = rc;
376 bsg_job_done(job, bsg_reply->result,
377 bsg_reply->reply_payload_rcv_len);
383 * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request
384 * @job: fc_bsg_job to handle
387 lpfc_bsg_send_mgmt_cmd(struct bsg_job *job)
389 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
390 struct lpfc_hba *phba = vport->phba;
391 struct lpfc_rport_data *rdata = fc_bsg_to_rport(job)->dd_data;
392 struct lpfc_nodelist *ndlp = rdata->pnode;
393 struct fc_bsg_reply *bsg_reply = job->reply;
394 struct ulp_bde64 *bpl = NULL;
396 struct lpfc_iocbq *cmdiocbq = NULL;
398 struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
401 struct bsg_job_data *dd_data;
407 /* in case no data is transferred */
408 bsg_reply->reply_payload_rcv_len = 0;
410 /* allocate our bsg tracking structure */
411 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
413 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
414 "2733 Failed allocation of dd_data\n");
419 if (!lpfc_nlp_get(ndlp)) {
424 if (ndlp->nlp_flag & NLP_ELS_SND_MASK) {
429 cmdiocbq = lpfc_sli_get_iocbq(phba);
435 cmd = &cmdiocbq->iocb;
437 bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
442 bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
448 INIT_LIST_HEAD(&bmp->list);
450 bpl = (struct ulp_bde64 *) bmp->virt;
451 request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
452 cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
453 1, bpl, &request_nseg);
458 lpfc_bsg_copy_data(cmp, &job->request_payload,
459 job->request_payload.payload_len, 1);
462 reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
463 rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
470 cmd->un.genreq64.bdl.ulpIoTag32 = 0;
471 cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
472 cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
473 cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
474 cmd->un.genreq64.bdl.bdeSize =
475 (request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
476 cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
477 cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
478 cmd->un.genreq64.w5.hcsw.Dfctl = 0;
479 cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
480 cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;
481 cmd->ulpBdeCount = 1;
483 cmd->ulpClass = CLASS3;
484 cmd->ulpContext = ndlp->nlp_rpi;
485 if (phba->sli_rev == LPFC_SLI_REV4)
486 cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
487 cmd->ulpOwner = OWN_CHIP;
488 cmdiocbq->vport = phba->pport;
489 cmdiocbq->context3 = bmp;
490 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
491 timeout = phba->fc_ratov * 2;
492 cmd->ulpTimeout = timeout;
494 cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp;
495 cmdiocbq->context1 = dd_data;
496 cmdiocbq->context2 = cmp;
497 cmdiocbq->context3 = bmp;
498 cmdiocbq->context_un.ndlp = ndlp;
499 dd_data->type = TYPE_IOCB;
500 dd_data->set_job = job;
501 dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
502 dd_data->context_un.iocb.ndlp = ndlp;
503 dd_data->context_un.iocb.rmp = rmp;
504 job->dd_data = dd_data;
506 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
507 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
511 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
512 writel(creg_val, phba->HCregaddr);
513 readl(phba->HCregaddr); /* flush */
516 iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
518 if (iocb_stat == IOCB_SUCCESS) {
519 spin_lock_irqsave(&phba->hbalock, flags);
520 /* make sure the I/O had not been completed yet */
521 if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
522 /* open up abort window to timeout handler */
523 cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
525 spin_unlock_irqrestore(&phba->hbalock, flags);
526 return 0; /* done for now */
527 } else if (iocb_stat == IOCB_BUSY) {
533 /* iocb failed so cleanup */
537 lpfc_free_bsg_buffers(phba, rmp);
539 lpfc_free_bsg_buffers(phba, cmp);
542 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
545 lpfc_sli_release_iocbq(phba, cmdiocbq);
551 /* make error code available to userspace */
552 bsg_reply->result = rc;
558 * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler
559 * @phba: Pointer to HBA context object.
560 * @cmdiocbq: Pointer to command iocb.
561 * @rspiocbq: Pointer to response iocb.
563 * This function is the completion handler for iocbs issued using
564 * lpfc_bsg_rport_els_cmp function. This function is called by the
565 * ring event handler function without any lock held. This function
566 * can be called from both worker thread context and interrupt
567 * context. This function also can be called from other thread which
568 * cleans up the SLI layer objects.
569 * This function copies the contents of the response iocb to the
570 * response iocb memory object provided by the caller of
571 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
572 * sleeps for the iocb completion.
575 lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba,
576 struct lpfc_iocbq *cmdiocbq,
577 struct lpfc_iocbq *rspiocbq)
579 struct bsg_job_data *dd_data;
581 struct fc_bsg_reply *bsg_reply;
583 struct lpfc_nodelist *ndlp;
584 struct lpfc_dmabuf *pcmd = NULL, *prsp = NULL;
585 struct fc_bsg_ctels_reply *els_reply;
588 unsigned int rsp_size;
591 dd_data = cmdiocbq->context1;
592 ndlp = dd_data->context_un.iocb.ndlp;
593 cmdiocbq->context1 = ndlp;
595 /* Determine if job has been aborted */
596 spin_lock_irqsave(&phba->ct_ev_lock, flags);
597 job = dd_data->set_job;
599 bsg_reply = job->reply;
600 /* Prevent timeout handling from trying to abort job */
603 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
605 /* Close the timeout handler abort window */
606 spin_lock_irqsave(&phba->hbalock, flags);
607 cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
608 spin_unlock_irqrestore(&phba->hbalock, flags);
610 rsp = &rspiocbq->iocb;
611 pcmd = (struct lpfc_dmabuf *)cmdiocbq->context2;
612 prsp = (struct lpfc_dmabuf *)pcmd->list.next;
614 /* Copy the completed job data or determine the job status if job is
619 if (rsp->ulpStatus == IOSTAT_SUCCESS) {
620 rsp_size = rsp->un.elsreq64.bdl.bdeSize;
621 bsg_reply->reply_payload_rcv_len =
622 sg_copy_from_buffer(job->reply_payload.sg_list,
623 job->reply_payload.sg_cnt,
626 } else if (rsp->ulpStatus == IOSTAT_LS_RJT) {
627 bsg_reply->reply_payload_rcv_len =
628 sizeof(struct fc_bsg_ctels_reply);
629 /* LS_RJT data returned in word 4 */
630 rjt_data = (uint8_t *)&rsp->un.ulpWord[4];
631 els_reply = &bsg_reply->reply_data.ctels_reply;
632 els_reply->status = FC_CTELS_STATUS_REJECT;
633 els_reply->rjt_data.action = rjt_data[3];
634 els_reply->rjt_data.reason_code = rjt_data[2];
635 els_reply->rjt_data.reason_explanation = rjt_data[1];
636 els_reply->rjt_data.vendor_unique = rjt_data[0];
643 lpfc_els_free_iocb(phba, cmdiocbq);
646 /* Complete the job if the job is still active */
649 bsg_reply->result = rc;
650 bsg_job_done(job, bsg_reply->result,
651 bsg_reply->reply_payload_rcv_len);
657 * lpfc_bsg_rport_els - send an ELS command from a bsg request
658 * @job: fc_bsg_job to handle
661 lpfc_bsg_rport_els(struct bsg_job *job)
663 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
664 struct lpfc_hba *phba = vport->phba;
665 struct lpfc_rport_data *rdata = fc_bsg_to_rport(job)->dd_data;
666 struct lpfc_nodelist *ndlp = rdata->pnode;
667 struct fc_bsg_request *bsg_request = job->request;
668 struct fc_bsg_reply *bsg_reply = job->reply;
671 struct lpfc_iocbq *cmdiocbq;
673 struct bsg_job_data *dd_data;
678 /* in case no data is transferred */
679 bsg_reply->reply_payload_rcv_len = 0;
681 /* verify the els command is not greater than the
682 * maximum ELS transfer size.
685 if (job->request_payload.payload_len > FCELSSIZE) {
690 /* allocate our bsg tracking structure */
691 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
693 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
694 "2735 Failed allocation of dd_data\n");
699 elscmd = bsg_request->rqst_data.r_els.els_code;
700 cmdsize = job->request_payload.payload_len;
702 if (!lpfc_nlp_get(ndlp)) {
707 /* We will use the allocated dma buffers by prep els iocb for command
708 * and response to ensure if the job times out and the request is freed,
709 * we won't be dma into memory that is no longer allocated to for the
713 cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp,
714 ndlp->nlp_DID, elscmd);
722 /* Transfer the request payload to allocated command dma buffer */
724 sg_copy_to_buffer(job->request_payload.sg_list,
725 job->request_payload.sg_cnt,
726 ((struct lpfc_dmabuf *)cmdiocbq->context2)->virt,
729 if (phba->sli_rev == LPFC_SLI_REV4)
730 cmdiocbq->iocb.ulpContext = phba->sli4_hba.rpi_ids[rpi];
732 cmdiocbq->iocb.ulpContext = rpi;
733 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
734 cmdiocbq->context1 = dd_data;
735 cmdiocbq->context_un.ndlp = ndlp;
736 cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp;
737 dd_data->type = TYPE_IOCB;
738 dd_data->set_job = job;
739 dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
740 dd_data->context_un.iocb.ndlp = ndlp;
741 dd_data->context_un.iocb.rmp = NULL;
742 job->dd_data = dd_data;
744 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
745 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
749 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
750 writel(creg_val, phba->HCregaddr);
751 readl(phba->HCregaddr); /* flush */
754 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
756 if (rc == IOCB_SUCCESS) {
757 spin_lock_irqsave(&phba->hbalock, flags);
758 /* make sure the I/O had not been completed/released */
759 if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
760 /* open up abort window to timeout handler */
761 cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
763 spin_unlock_irqrestore(&phba->hbalock, flags);
764 return 0; /* done for now */
765 } else if (rc == IOCB_BUSY) {
771 /* iocb failed so cleanup */
775 cmdiocbq->context1 = ndlp;
776 lpfc_els_free_iocb(phba, cmdiocbq);
785 /* make error code available to userspace */
786 bsg_reply->result = rc;
792 * lpfc_bsg_event_free - frees an allocated event structure
793 * @kref: Pointer to a kref.
795 * Called from kref_put. Back cast the kref into an event structure address.
796 * Free any events to get, delete associated nodes, free any events to see,
797 * free any data then free the event itself.
800 lpfc_bsg_event_free(struct kref *kref)
802 struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event,
804 struct event_data *ed;
806 list_del(&evt->node);
808 while (!list_empty(&evt->events_to_get)) {
809 ed = list_entry(evt->events_to_get.next, typeof(*ed), node);
815 while (!list_empty(&evt->events_to_see)) {
816 ed = list_entry(evt->events_to_see.next, typeof(*ed), node);
827 * lpfc_bsg_event_ref - increments the kref for an event
828 * @evt: Pointer to an event structure.
831 lpfc_bsg_event_ref(struct lpfc_bsg_event *evt)
833 kref_get(&evt->kref);
837 * lpfc_bsg_event_unref - Uses kref_put to free an event structure
838 * @evt: Pointer to an event structure.
841 lpfc_bsg_event_unref(struct lpfc_bsg_event *evt)
843 kref_put(&evt->kref, lpfc_bsg_event_free);
847 * lpfc_bsg_event_new - allocate and initialize a event structure
848 * @ev_mask: Mask of events.
849 * @ev_reg_id: Event reg id.
850 * @ev_req_id: Event request id.
852 static struct lpfc_bsg_event *
853 lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id)
855 struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL);
860 INIT_LIST_HEAD(&evt->events_to_get);
861 INIT_LIST_HEAD(&evt->events_to_see);
862 evt->type_mask = ev_mask;
863 evt->req_id = ev_req_id;
864 evt->reg_id = ev_reg_id;
865 evt->wait_time_stamp = jiffies;
867 init_waitqueue_head(&evt->wq);
868 kref_init(&evt->kref);
873 * diag_cmd_data_free - Frees an lpfc dma buffer extension
874 * @phba: Pointer to HBA context object.
875 * @mlist: Pointer to an lpfc dma buffer extension.
878 diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist)
880 struct lpfc_dmabufext *mlast;
881 struct pci_dev *pcidev;
882 struct list_head head, *curr, *next;
884 if ((!mlist) || (!lpfc_is_link_up(phba) &&
885 (phba->link_flag & LS_LOOPBACK_MODE))) {
889 pcidev = phba->pcidev;
890 list_add_tail(&head, &mlist->dma.list);
892 list_for_each_safe(curr, next, &head) {
893 mlast = list_entry(curr, struct lpfc_dmabufext , dma.list);
895 dma_free_coherent(&pcidev->dev,
905 * lpfc_bsg_ct_unsol_event - process an unsolicited CT command
910 * This function is called when an unsolicited CT command is received. It
911 * forwards the event to any processes registered to receive CT events.
914 lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
915 struct lpfc_iocbq *piocbq)
917 uint32_t evt_req_id = 0;
919 struct lpfc_dmabuf *dmabuf = NULL;
920 struct lpfc_bsg_event *evt;
921 struct event_data *evt_dat = NULL;
922 struct lpfc_iocbq *iocbq;
924 struct list_head head;
925 struct ulp_bde64 *bde;
928 struct lpfc_dmabuf *bdeBuf1 = piocbq->context2;
929 struct lpfc_dmabuf *bdeBuf2 = piocbq->context3;
930 struct lpfc_hbq_entry *hbqe;
931 struct lpfc_sli_ct_request *ct_req;
932 struct bsg_job *job = NULL;
933 struct fc_bsg_reply *bsg_reply;
934 struct bsg_job_data *dd_data = NULL;
938 INIT_LIST_HEAD(&head);
939 list_add_tail(&head, &piocbq->list);
941 if (piocbq->iocb.ulpBdeCount == 0 ||
942 piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0)
943 goto error_ct_unsol_exit;
945 if (phba->link_state == LPFC_HBA_ERROR ||
946 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)))
947 goto error_ct_unsol_exit;
949 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
952 dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh,
953 piocbq->iocb.un.cont64[0].addrLow);
954 dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr);
957 goto error_ct_unsol_exit;
958 ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt;
959 evt_req_id = ct_req->FsType;
960 cmd = ct_req->CommandResponse.bits.CmdRsp;
961 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
962 lpfc_sli_ringpostbuf_put(phba, pring, dmabuf);
964 spin_lock_irqsave(&phba->ct_ev_lock, flags);
965 list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
966 if (!(evt->type_mask & FC_REG_CT_EVENT) ||
967 evt->req_id != evt_req_id)
970 lpfc_bsg_event_ref(evt);
971 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
972 evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL);
973 if (evt_dat == NULL) {
974 spin_lock_irqsave(&phba->ct_ev_lock, flags);
975 lpfc_bsg_event_unref(evt);
976 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
977 "2614 Memory allocation failed for "
982 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
983 /* take accumulated byte count from the last iocbq */
984 iocbq = list_entry(head.prev, typeof(*iocbq), list);
985 evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len;
987 list_for_each_entry(iocbq, &head, list) {
988 for (i = 0; i < iocbq->iocb.ulpBdeCount; i++)
990 iocbq->iocb.un.cont64[i].tus.f.bdeSize;
994 evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL);
995 if (evt_dat->data == NULL) {
996 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
997 "2615 Memory allocation failed for "
998 "CT event data, size %d\n",
1001 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1002 lpfc_bsg_event_unref(evt);
1003 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1004 goto error_ct_unsol_exit;
1007 list_for_each_entry(iocbq, &head, list) {
1009 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
1010 bdeBuf1 = iocbq->context2;
1011 bdeBuf2 = iocbq->context3;
1013 for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) {
1014 if (phba->sli3_options &
1015 LPFC_SLI3_HBQ_ENABLED) {
1017 hbqe = (struct lpfc_hbq_entry *)
1018 &iocbq->iocb.un.ulpWord[0];
1019 size = hbqe->bde.tus.f.bdeSize;
1021 } else if (i == 1) {
1022 hbqe = (struct lpfc_hbq_entry *)
1023 &iocbq->iocb.unsli3.
1025 size = hbqe->bde.tus.f.bdeSize;
1028 if ((offset + size) > evt_dat->len)
1029 size = evt_dat->len - offset;
1031 size = iocbq->iocb.un.cont64[i].
1033 bde = &iocbq->iocb.un.cont64[i];
1034 dma_addr = getPaddr(bde->addrHigh,
1036 dmabuf = lpfc_sli_ringpostbuf_get(phba,
1040 lpfc_printf_log(phba, KERN_ERR,
1041 LOG_LIBDFC, "2616 No dmabuf "
1042 "found for iocbq 0x%p\n",
1044 kfree(evt_dat->data);
1046 spin_lock_irqsave(&phba->ct_ev_lock,
1048 lpfc_bsg_event_unref(evt);
1049 spin_unlock_irqrestore(
1050 &phba->ct_ev_lock, flags);
1051 goto error_ct_unsol_exit;
1053 memcpy((char *)(evt_dat->data) + offset,
1054 dmabuf->virt, size);
1056 if (evt_req_id != SLI_CT_ELX_LOOPBACK &&
1057 !(phba->sli3_options &
1058 LPFC_SLI3_HBQ_ENABLED)) {
1059 lpfc_sli_ringpostbuf_put(phba, pring,
1063 case ELX_LOOPBACK_DATA:
1066 diag_cmd_data_free(phba,
1067 (struct lpfc_dmabufext
1070 case ELX_LOOPBACK_XRI_SETUP:
1071 if ((phba->sli_rev ==
1073 (phba->sli3_options &
1074 LPFC_SLI3_HBQ_ENABLED
1076 lpfc_in_buf_free(phba,
1079 lpfc_post_buffer(phba,
1085 if (!(phba->sli3_options &
1086 LPFC_SLI3_HBQ_ENABLED))
1087 lpfc_post_buffer(phba,
1096 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1097 if (phba->sli_rev == LPFC_SLI_REV4) {
1098 evt_dat->immed_dat = phba->ctx_idx;
1099 phba->ctx_idx = (phba->ctx_idx + 1) % LPFC_CT_CTX_MAX;
1100 /* Provide warning for over-run of the ct_ctx array */
1101 if (phba->ct_ctx[evt_dat->immed_dat].valid ==
1103 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
1104 "2717 CT context array entry "
1105 "[%d] over-run: oxid:x%x, "
1106 "sid:x%x\n", phba->ctx_idx,
1108 evt_dat->immed_dat].oxid,
1110 evt_dat->immed_dat].SID);
1111 phba->ct_ctx[evt_dat->immed_dat].rxid =
1112 piocbq->iocb.ulpContext;
1113 phba->ct_ctx[evt_dat->immed_dat].oxid =
1114 piocbq->iocb.unsli3.rcvsli3.ox_id;
1115 phba->ct_ctx[evt_dat->immed_dat].SID =
1116 piocbq->iocb.un.rcvels.remoteID;
1117 phba->ct_ctx[evt_dat->immed_dat].valid = UNSOL_VALID;
1119 evt_dat->immed_dat = piocbq->iocb.ulpContext;
1121 evt_dat->type = FC_REG_CT_EVENT;
1122 list_add(&evt_dat->node, &evt->events_to_see);
1123 if (evt_req_id == SLI_CT_ELX_LOOPBACK) {
1124 wake_up_interruptible(&evt->wq);
1125 lpfc_bsg_event_unref(evt);
1129 list_move(evt->events_to_see.prev, &evt->events_to_get);
1131 dd_data = (struct bsg_job_data *)evt->dd_data;
1132 job = dd_data->set_job;
1133 dd_data->set_job = NULL;
1134 lpfc_bsg_event_unref(evt);
1136 bsg_reply = job->reply;
1137 bsg_reply->reply_payload_rcv_len = size;
1138 /* make error code available to userspace */
1139 bsg_reply->result = 0;
1140 job->dd_data = NULL;
1141 /* complete the job back to userspace */
1142 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1143 bsg_job_done(job, bsg_reply->result,
1144 bsg_reply->reply_payload_rcv_len);
1145 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1148 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1150 error_ct_unsol_exit:
1151 if (!list_empty(&head))
1153 if ((phba->sli_rev < LPFC_SLI_REV4) &&
1154 (evt_req_id == SLI_CT_ELX_LOOPBACK))
1160 * lpfc_bsg_ct_unsol_abort - handler ct abort to management plane
1161 * @phba: Pointer to HBA context object.
1162 * @dmabuf: pointer to a dmabuf that describes the FC sequence
1164 * This function handles abort to the CT command toward management plane
1167 * If the pending context of a CT command to management plane present, clears
1168 * such context and returns 1 for handled; otherwise, it returns 0 indicating
1169 * no context exists.
1172 lpfc_bsg_ct_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf)
1174 struct fc_frame_header fc_hdr;
1175 struct fc_frame_header *fc_hdr_ptr = &fc_hdr;
1176 int ctx_idx, handled = 0;
1177 uint16_t oxid, rxid;
1180 memcpy(fc_hdr_ptr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
1181 sid = sli4_sid_from_fc_hdr(fc_hdr_ptr);
1182 oxid = be16_to_cpu(fc_hdr_ptr->fh_ox_id);
1183 rxid = be16_to_cpu(fc_hdr_ptr->fh_rx_id);
1185 for (ctx_idx = 0; ctx_idx < LPFC_CT_CTX_MAX; ctx_idx++) {
1186 if (phba->ct_ctx[ctx_idx].valid != UNSOL_VALID)
1188 if (phba->ct_ctx[ctx_idx].rxid != rxid)
1190 if (phba->ct_ctx[ctx_idx].oxid != oxid)
1192 if (phba->ct_ctx[ctx_idx].SID != sid)
1194 phba->ct_ctx[ctx_idx].valid = UNSOL_INVALID;
1201 * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command
1202 * @job: SET_EVENT fc_bsg_job
1205 lpfc_bsg_hba_set_event(struct bsg_job *job)
1207 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
1208 struct lpfc_hba *phba = vport->phba;
1209 struct fc_bsg_request *bsg_request = job->request;
1210 struct set_ct_event *event_req;
1211 struct lpfc_bsg_event *evt;
1213 struct bsg_job_data *dd_data = NULL;
1215 unsigned long flags;
1217 if (job->request_len <
1218 sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) {
1219 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1220 "2612 Received SET_CT_EVENT below minimum "
1226 event_req = (struct set_ct_event *)
1227 bsg_request->rqst_data.h_vendor.vendor_cmd;
1228 ev_mask = ((uint32_t)(unsigned long)event_req->type_mask &
1230 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1231 list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
1232 if (evt->reg_id == event_req->ev_reg_id) {
1233 lpfc_bsg_event_ref(evt);
1234 evt->wait_time_stamp = jiffies;
1235 dd_data = (struct bsg_job_data *)evt->dd_data;
1239 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1241 if (&evt->node == &phba->ct_ev_waiters) {
1242 /* no event waiting struct yet - first call */
1243 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
1244 if (dd_data == NULL) {
1245 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1246 "2734 Failed allocation of dd_data\n");
1250 evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id,
1251 event_req->ev_req_id);
1253 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1254 "2617 Failed allocation of event "
1259 dd_data->type = TYPE_EVT;
1260 dd_data->set_job = NULL;
1261 dd_data->context_un.evt = evt;
1262 evt->dd_data = (void *)dd_data;
1263 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1264 list_add(&evt->node, &phba->ct_ev_waiters);
1265 lpfc_bsg_event_ref(evt);
1266 evt->wait_time_stamp = jiffies;
1267 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1270 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1272 dd_data->set_job = job; /* for unsolicited command */
1273 job->dd_data = dd_data; /* for fc transport timeout callback*/
1274 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1275 return 0; /* call job done later */
1278 if (dd_data != NULL)
1281 job->dd_data = NULL;
1286 * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command
1287 * @job: GET_EVENT fc_bsg_job
1290 lpfc_bsg_hba_get_event(struct bsg_job *job)
1292 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
1293 struct lpfc_hba *phba = vport->phba;
1294 struct fc_bsg_request *bsg_request = job->request;
1295 struct fc_bsg_reply *bsg_reply = job->reply;
1296 struct get_ct_event *event_req;
1297 struct get_ct_event_reply *event_reply;
1298 struct lpfc_bsg_event *evt, *evt_next;
1299 struct event_data *evt_dat = NULL;
1300 unsigned long flags;
1303 if (job->request_len <
1304 sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) {
1305 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1306 "2613 Received GET_CT_EVENT request below "
1312 event_req = (struct get_ct_event *)
1313 bsg_request->rqst_data.h_vendor.vendor_cmd;
1315 event_reply = (struct get_ct_event_reply *)
1316 bsg_reply->reply_data.vendor_reply.vendor_rsp;
1317 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1318 list_for_each_entry_safe(evt, evt_next, &phba->ct_ev_waiters, node) {
1319 if (evt->reg_id == event_req->ev_reg_id) {
1320 if (list_empty(&evt->events_to_get))
1322 lpfc_bsg_event_ref(evt);
1323 evt->wait_time_stamp = jiffies;
1324 evt_dat = list_entry(evt->events_to_get.prev,
1325 struct event_data, node);
1326 list_del(&evt_dat->node);
1330 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1332 /* The app may continue to ask for event data until it gets
1333 * an error indicating that there isn't anymore
1335 if (evt_dat == NULL) {
1336 bsg_reply->reply_payload_rcv_len = 0;
1341 if (evt_dat->len > job->request_payload.payload_len) {
1342 evt_dat->len = job->request_payload.payload_len;
1343 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1344 "2618 Truncated event data at %d "
1346 job->request_payload.payload_len);
1349 event_reply->type = evt_dat->type;
1350 event_reply->immed_data = evt_dat->immed_dat;
1351 if (evt_dat->len > 0)
1352 bsg_reply->reply_payload_rcv_len =
1353 sg_copy_from_buffer(job->request_payload.sg_list,
1354 job->request_payload.sg_cnt,
1355 evt_dat->data, evt_dat->len);
1357 bsg_reply->reply_payload_rcv_len = 0;
1360 kfree(evt_dat->data);
1364 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1365 lpfc_bsg_event_unref(evt);
1366 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1367 job->dd_data = NULL;
1368 bsg_reply->result = 0;
1369 bsg_job_done(job, bsg_reply->result,
1370 bsg_reply->reply_payload_rcv_len);
1374 job->dd_data = NULL;
1375 bsg_reply->result = rc;
1380 * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler
1381 * @phba: Pointer to HBA context object.
1382 * @cmdiocbq: Pointer to command iocb.
1383 * @rspiocbq: Pointer to response iocb.
1385 * This function is the completion handler for iocbs issued using
1386 * lpfc_issue_ct_rsp_cmp function. This function is called by the
1387 * ring event handler function without any lock held. This function
1388 * can be called from both worker thread context and interrupt
1389 * context. This function also can be called from other thread which
1390 * cleans up the SLI layer objects.
1391 * This function copy the contents of the response iocb to the
1392 * response iocb memory object provided by the caller of
1393 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
1394 * sleeps for the iocb completion.
1397 lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba,
1398 struct lpfc_iocbq *cmdiocbq,
1399 struct lpfc_iocbq *rspiocbq)
1401 struct bsg_job_data *dd_data;
1402 struct bsg_job *job;
1403 struct fc_bsg_reply *bsg_reply;
1405 struct lpfc_dmabuf *bmp, *cmp;
1406 struct lpfc_nodelist *ndlp;
1407 unsigned long flags;
1410 dd_data = cmdiocbq->context1;
1412 /* Determine if job has been aborted */
1413 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1414 job = dd_data->set_job;
1416 /* Prevent timeout handling from trying to abort job */
1417 job->dd_data = NULL;
1419 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1421 /* Close the timeout handler abort window */
1422 spin_lock_irqsave(&phba->hbalock, flags);
1423 cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
1424 spin_unlock_irqrestore(&phba->hbalock, flags);
1426 ndlp = dd_data->context_un.iocb.ndlp;
1427 cmp = cmdiocbq->context2;
1428 bmp = cmdiocbq->context3;
1429 rsp = &rspiocbq->iocb;
1431 /* Copy the completed job data or set the error status */
1434 bsg_reply = job->reply;
1435 if (rsp->ulpStatus) {
1436 if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
1437 switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
1438 case IOERR_SEQUENCE_TIMEOUT:
1441 case IOERR_INVALID_RPI:
1452 bsg_reply->reply_payload_rcv_len = 0;
1456 lpfc_free_bsg_buffers(phba, cmp);
1457 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
1459 lpfc_sli_release_iocbq(phba, cmdiocbq);
1463 /* Complete the job if the job is still active */
1466 bsg_reply->result = rc;
1467 bsg_job_done(job, bsg_reply->result,
1468 bsg_reply->reply_payload_rcv_len);
1474 * lpfc_issue_ct_rsp - issue a ct response
1475 * @phba: Pointer to HBA context object.
1476 * @job: Pointer to the job object.
1477 * @tag: tag index value into the ports context exchange array.
1478 * @bmp: Pointer to a dma buffer descriptor.
1479 * @num_entry: Number of enties in the bde.
1482 lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct bsg_job *job, uint32_t tag,
1483 struct lpfc_dmabuf *cmp, struct lpfc_dmabuf *bmp,
1487 struct lpfc_iocbq *ctiocb = NULL;
1489 struct lpfc_nodelist *ndlp = NULL;
1490 struct bsg_job_data *dd_data;
1491 unsigned long flags;
1494 /* allocate our bsg tracking structure */
1495 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
1497 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1498 "2736 Failed allocation of dd_data\n");
1503 /* Allocate buffer for command iocb */
1504 ctiocb = lpfc_sli_get_iocbq(phba);
1510 icmd = &ctiocb->iocb;
1511 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
1512 icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
1513 icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys);
1514 icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
1515 icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64));
1516 icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
1517 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
1518 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL;
1519 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
1521 /* Fill in rest of iocb */
1522 icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
1523 icmd->ulpBdeCount = 1;
1525 icmd->ulpClass = CLASS3;
1526 if (phba->sli_rev == LPFC_SLI_REV4) {
1527 /* Do not issue unsol response if oxid not marked as valid */
1528 if (phba->ct_ctx[tag].valid != UNSOL_VALID) {
1530 goto issue_ct_rsp_exit;
1532 icmd->ulpContext = phba->ct_ctx[tag].rxid;
1533 icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid;
1534 ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID);
1536 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
1537 "2721 ndlp null for oxid %x SID %x\n",
1539 phba->ct_ctx[tag].SID);
1541 goto issue_ct_rsp_exit;
1544 /* Check if the ndlp is active */
1545 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
1547 goto issue_ct_rsp_exit;
1550 /* get a refernece count so the ndlp doesn't go away while
1553 if (!lpfc_nlp_get(ndlp)) {
1555 goto issue_ct_rsp_exit;
1558 icmd->un.ulpWord[3] =
1559 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
1561 /* The exchange is done, mark the entry as invalid */
1562 phba->ct_ctx[tag].valid = UNSOL_INVALID;
1564 icmd->ulpContext = (ushort) tag;
1566 icmd->ulpTimeout = phba->fc_ratov * 2;
1568 /* Xmit CT response on exchange <xid> */
1569 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1570 "2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n",
1571 icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state);
1573 ctiocb->iocb_cmpl = NULL;
1574 ctiocb->iocb_flag |= LPFC_IO_LIBDFC;
1575 ctiocb->vport = phba->pport;
1576 ctiocb->context1 = dd_data;
1577 ctiocb->context2 = cmp;
1578 ctiocb->context3 = bmp;
1579 ctiocb->context_un.ndlp = ndlp;
1580 ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp;
1582 dd_data->type = TYPE_IOCB;
1583 dd_data->set_job = job;
1584 dd_data->context_un.iocb.cmdiocbq = ctiocb;
1585 dd_data->context_un.iocb.ndlp = ndlp;
1586 dd_data->context_un.iocb.rmp = NULL;
1587 job->dd_data = dd_data;
1589 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
1590 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1592 goto issue_ct_rsp_exit;
1594 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1595 writel(creg_val, phba->HCregaddr);
1596 readl(phba->HCregaddr); /* flush */
1599 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
1601 if (rc == IOCB_SUCCESS) {
1602 spin_lock_irqsave(&phba->hbalock, flags);
1603 /* make sure the I/O had not been completed/released */
1604 if (ctiocb->iocb_flag & LPFC_IO_LIBDFC) {
1605 /* open up abort window to timeout handler */
1606 ctiocb->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
1608 spin_unlock_irqrestore(&phba->hbalock, flags);
1609 return 0; /* done for now */
1612 /* iocb failed so cleanup */
1613 job->dd_data = NULL;
1616 lpfc_sli_release_iocbq(phba, ctiocb);
1624 * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command
1625 * @job: SEND_MGMT_RESP fc_bsg_job
1628 lpfc_bsg_send_mgmt_rsp(struct bsg_job *job)
1630 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
1631 struct lpfc_hba *phba = vport->phba;
1632 struct fc_bsg_request *bsg_request = job->request;
1633 struct fc_bsg_reply *bsg_reply = job->reply;
1634 struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *)
1635 bsg_request->rqst_data.h_vendor.vendor_cmd;
1636 struct ulp_bde64 *bpl;
1637 struct lpfc_dmabuf *bmp = NULL, *cmp = NULL;
1639 uint32_t tag = mgmt_resp->tag;
1640 unsigned long reqbfrcnt =
1641 (unsigned long)job->request_payload.payload_len;
1644 /* in case no data is transferred */
1645 bsg_reply->reply_payload_rcv_len = 0;
1647 if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) {
1649 goto send_mgmt_rsp_exit;
1652 bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1655 goto send_mgmt_rsp_exit;
1658 bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
1661 goto send_mgmt_rsp_free_bmp;
1664 INIT_LIST_HEAD(&bmp->list);
1665 bpl = (struct ulp_bde64 *) bmp->virt;
1666 bpl_entries = (LPFC_BPL_SIZE/sizeof(struct ulp_bde64));
1667 cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
1668 1, bpl, &bpl_entries);
1671 goto send_mgmt_rsp_free_bmp;
1673 lpfc_bsg_copy_data(cmp, &job->request_payload,
1674 job->request_payload.payload_len, 1);
1676 rc = lpfc_issue_ct_rsp(phba, job, tag, cmp, bmp, bpl_entries);
1678 if (rc == IOCB_SUCCESS)
1679 return 0; /* done for now */
1683 lpfc_free_bsg_buffers(phba, cmp);
1685 send_mgmt_rsp_free_bmp:
1687 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
1690 /* make error code available to userspace */
1691 bsg_reply->result = rc;
1692 job->dd_data = NULL;
1697 * lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode
1698 * @phba: Pointer to HBA context object.
1700 * This function is responsible for preparing driver for diag loopback
1704 lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba)
1706 struct lpfc_vport **vports;
1707 struct Scsi_Host *shost;
1708 struct lpfc_sli *psli;
1709 struct lpfc_queue *qp = NULL;
1710 struct lpfc_sli_ring *pring;
1718 if ((phba->link_state == LPFC_HBA_ERROR) ||
1719 (psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
1720 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
1723 vports = lpfc_create_vport_work_array(phba);
1725 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1726 shost = lpfc_shost_from_vport(vports[i]);
1727 scsi_block_requests(shost);
1729 lpfc_destroy_vport_work_array(phba, vports);
1731 shost = lpfc_shost_from_vport(phba->pport);
1732 scsi_block_requests(shost);
1735 if (phba->sli_rev != LPFC_SLI_REV4) {
1736 pring = &psli->sli3_ring[LPFC_FCP_RING];
1737 lpfc_emptyq_wait(phba, &pring->txcmplq, &phba->hbalock);
1740 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1742 if (!pring || (pring->ringno != LPFC_FCP_RING))
1744 if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
1752 * lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode
1753 * @phba: Pointer to HBA context object.
1755 * This function is responsible for driver exit processing of setting up
1756 * diag loopback mode on device.
1759 lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba)
1761 struct Scsi_Host *shost;
1762 struct lpfc_vport **vports;
1765 vports = lpfc_create_vport_work_array(phba);
1767 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1768 shost = lpfc_shost_from_vport(vports[i]);
1769 scsi_unblock_requests(shost);
1771 lpfc_destroy_vport_work_array(phba, vports);
1773 shost = lpfc_shost_from_vport(phba->pport);
1774 scsi_unblock_requests(shost);
1780 * lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command
1781 * @phba: Pointer to HBA context object.
1782 * @job: LPFC_BSG_VENDOR_DIAG_MODE
1784 * This function is responsible for placing an sli3 port into diagnostic
1785 * loopback mode in order to perform a diagnostic loopback test.
1786 * All new scsi requests are blocked, a small delay is used to allow the
1787 * scsi requests to complete then the link is brought down. If the link is
1788 * is placed in loopback mode then scsi requests are again allowed
1789 * so the scsi mid-layer doesn't give up on the port.
1790 * All of this is done in-line.
1793 lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct bsg_job *job)
1795 struct fc_bsg_request *bsg_request = job->request;
1796 struct fc_bsg_reply *bsg_reply = job->reply;
1797 struct diag_mode_set *loopback_mode;
1798 uint32_t link_flags;
1800 LPFC_MBOXQ_t *pmboxq = NULL;
1801 int mbxstatus = MBX_SUCCESS;
1805 /* no data to return just the return code */
1806 bsg_reply->reply_payload_rcv_len = 0;
1808 if (job->request_len < sizeof(struct fc_bsg_request) +
1809 sizeof(struct diag_mode_set)) {
1810 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1811 "2738 Received DIAG MODE request size:%d "
1812 "below the minimum size:%d\n",
1814 (int)(sizeof(struct fc_bsg_request) +
1815 sizeof(struct diag_mode_set)));
1820 rc = lpfc_bsg_diag_mode_enter(phba);
1824 /* bring the link to diagnostic mode */
1825 loopback_mode = (struct diag_mode_set *)
1826 bsg_request->rqst_data.h_vendor.vendor_cmd;
1827 link_flags = loopback_mode->type;
1828 timeout = loopback_mode->timeout * 100;
1830 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1833 goto loopback_mode_exit;
1835 memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1836 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
1837 pmboxq->u.mb.mbxOwner = OWN_HOST;
1839 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
1841 if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) {
1842 /* wait for link down before proceeding */
1844 while (phba->link_state != LPFC_LINK_DOWN) {
1845 if (i++ > timeout) {
1847 goto loopback_mode_exit;
1852 memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1853 if (link_flags == INTERNAL_LOOP_BACK)
1854 pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
1856 pmboxq->u.mb.un.varInitLnk.link_flags =
1857 FLAGS_TOPOLOGY_MODE_LOOP;
1859 pmboxq->u.mb.mbxCommand = MBX_INIT_LINK;
1860 pmboxq->u.mb.mbxOwner = OWN_HOST;
1862 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
1865 if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus))
1868 spin_lock_irq(&phba->hbalock);
1869 phba->link_flag |= LS_LOOPBACK_MODE;
1870 spin_unlock_irq(&phba->hbalock);
1871 /* wait for the link attention interrupt */
1875 while (phba->link_state != LPFC_HBA_READY) {
1876 if (i++ > timeout) {
1889 lpfc_bsg_diag_mode_exit(phba);
1892 * Let SLI layer release mboxq if mbox command completed after timeout.
1894 if (pmboxq && mbxstatus != MBX_TIMEOUT)
1895 mempool_free(pmboxq, phba->mbox_mem_pool);
1898 /* make error code available to userspace */
1899 bsg_reply->result = rc;
1900 /* complete the job back to userspace if no error */
1902 bsg_job_done(job, bsg_reply->result,
1903 bsg_reply->reply_payload_rcv_len);
1908 * lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state
1909 * @phba: Pointer to HBA context object.
1910 * @diag: Flag for set link to diag or nomral operation state.
1912 * This function is responsible for issuing a sli4 mailbox command for setting
1913 * link to either diag state or normal operation state.
1916 lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag)
1918 LPFC_MBOXQ_t *pmboxq;
1919 struct lpfc_mbx_set_link_diag_state *link_diag_state;
1920 uint32_t req_len, alloc_len;
1921 int mbxstatus = MBX_SUCCESS, rc;
1923 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1927 req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
1928 sizeof(struct lpfc_sli4_cfg_mhdr));
1929 alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
1930 LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
1931 req_len, LPFC_SLI4_MBX_EMBED);
1932 if (alloc_len != req_len) {
1934 goto link_diag_state_set_out;
1936 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
1937 "3128 Set link to diagnostic state:x%x (x%x/x%x)\n",
1938 diag, phba->sli4_hba.lnk_info.lnk_tp,
1939 phba->sli4_hba.lnk_info.lnk_no);
1941 link_diag_state = &pmboxq->u.mqe.un.link_diag_state;
1942 bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req,
1943 LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE);
1944 bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req,
1945 phba->sli4_hba.lnk_info.lnk_no);
1946 bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req,
1947 phba->sli4_hba.lnk_info.lnk_tp);
1949 bf_set(lpfc_mbx_set_diag_state_diag,
1950 &link_diag_state->u.req, 1);
1952 bf_set(lpfc_mbx_set_diag_state_diag,
1953 &link_diag_state->u.req, 0);
1955 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
1957 if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0))
1962 link_diag_state_set_out:
1963 if (pmboxq && (mbxstatus != MBX_TIMEOUT))
1964 mempool_free(pmboxq, phba->mbox_mem_pool);
1970 * lpfc_sli4_bsg_set_internal_loopback - set sli4 internal loopback diagnostic
1971 * @phba: Pointer to HBA context object.
1973 * This function is responsible for issuing a sli4 mailbox command for setting
1974 * up internal loopback diagnostic.
1977 lpfc_sli4_bsg_set_internal_loopback(struct lpfc_hba *phba)
1979 LPFC_MBOXQ_t *pmboxq;
1980 uint32_t req_len, alloc_len;
1981 struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback;
1982 int mbxstatus = MBX_SUCCESS, rc = 0;
1984 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1987 req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) -
1988 sizeof(struct lpfc_sli4_cfg_mhdr));
1989 alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
1990 LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK,
1991 req_len, LPFC_SLI4_MBX_EMBED);
1992 if (alloc_len != req_len) {
1993 mempool_free(pmboxq, phba->mbox_mem_pool);
1996 link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback;
1997 bf_set(lpfc_mbx_set_diag_state_link_num,
1998 &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_no);
1999 bf_set(lpfc_mbx_set_diag_state_link_type,
2000 &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_tp);
2001 bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req,
2002 LPFC_DIAG_LOOPBACK_TYPE_INTERNAL);
2004 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
2005 if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) {
2006 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2007 "3127 Failed setup loopback mode mailbox "
2008 "command, rc:x%x, status:x%x\n", mbxstatus,
2009 pmboxq->u.mb.mbxStatus);
2012 if (pmboxq && (mbxstatus != MBX_TIMEOUT))
2013 mempool_free(pmboxq, phba->mbox_mem_pool);
2018 * lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic
2019 * @phba: Pointer to HBA context object.
2021 * This function set up SLI4 FC port registrations for diagnostic run, which
2022 * includes all the rpis, vfi, and also vpi.
2025 lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba)
2029 if (phba->pport->fc_flag & FC_VFI_REGISTERED) {
2030 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2031 "3136 Port still had vfi registered: "
2032 "mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n",
2033 phba->pport->fc_myDID, phba->fcf.fcfi,
2034 phba->sli4_hba.vfi_ids[phba->pport->vfi],
2035 phba->vpi_ids[phba->pport->vpi]);
2038 rc = lpfc_issue_reg_vfi(phba->pport);
2043 * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command
2044 * @phba: Pointer to HBA context object.
2045 * @job: LPFC_BSG_VENDOR_DIAG_MODE
2047 * This function is responsible for placing an sli4 port into diagnostic
2048 * loopback mode in order to perform a diagnostic loopback test.
2051 lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct bsg_job *job)
2053 struct fc_bsg_request *bsg_request = job->request;
2054 struct fc_bsg_reply *bsg_reply = job->reply;
2055 struct diag_mode_set *loopback_mode;
2056 uint32_t link_flags, timeout;
2059 /* no data to return just the return code */
2060 bsg_reply->reply_payload_rcv_len = 0;
2062 if (job->request_len < sizeof(struct fc_bsg_request) +
2063 sizeof(struct diag_mode_set)) {
2064 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2065 "3011 Received DIAG MODE request size:%d "
2066 "below the minimum size:%d\n",
2068 (int)(sizeof(struct fc_bsg_request) +
2069 sizeof(struct diag_mode_set)));
2074 rc = lpfc_bsg_diag_mode_enter(phba);
2078 /* indicate we are in loobpack diagnostic mode */
2079 spin_lock_irq(&phba->hbalock);
2080 phba->link_flag |= LS_LOOPBACK_MODE;
2081 spin_unlock_irq(&phba->hbalock);
2083 /* reset port to start frome scratch */
2084 rc = lpfc_selective_reset(phba);
2088 /* bring the link to diagnostic mode */
2089 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2090 "3129 Bring link to diagnostic state.\n");
2091 loopback_mode = (struct diag_mode_set *)
2092 bsg_request->rqst_data.h_vendor.vendor_cmd;
2093 link_flags = loopback_mode->type;
2094 timeout = loopback_mode->timeout * 100;
2096 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
2098 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2099 "3130 Failed to bring link to diagnostic "
2100 "state, rc:x%x\n", rc);
2101 goto loopback_mode_exit;
2104 /* wait for link down before proceeding */
2106 while (phba->link_state != LPFC_LINK_DOWN) {
2107 if (i++ > timeout) {
2109 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2110 "3131 Timeout waiting for link to "
2111 "diagnostic mode, timeout:%d ms\n",
2113 goto loopback_mode_exit;
2118 /* set up loopback mode */
2119 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2120 "3132 Set up loopback mode:x%x\n", link_flags);
2122 if (link_flags == INTERNAL_LOOP_BACK)
2123 rc = lpfc_sli4_bsg_set_internal_loopback(phba);
2124 else if (link_flags == EXTERNAL_LOOP_BACK)
2125 rc = lpfc_hba_init_link_fc_topology(phba,
2126 FLAGS_TOPOLOGY_MODE_PT_PT,
2130 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
2131 "3141 Loopback mode:x%x not supported\n",
2133 goto loopback_mode_exit;
2137 /* wait for the link attention interrupt */
2140 while (phba->link_state < LPFC_LINK_UP) {
2141 if (i++ > timeout) {
2143 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2144 "3137 Timeout waiting for link up "
2145 "in loopback mode, timeout:%d ms\n",
2153 /* port resource registration setup for loopback diagnostic */
2155 /* set up a none zero myDID for loopback test */
2156 phba->pport->fc_myDID = 1;
2157 rc = lpfc_sli4_diag_fcport_reg_setup(phba);
2159 goto loopback_mode_exit;
2162 /* wait for the port ready */
2165 while (phba->link_state != LPFC_HBA_READY) {
2166 if (i++ > timeout) {
2168 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2169 "3133 Timeout waiting for port "
2170 "loopback mode ready, timeout:%d ms\n",
2179 /* clear loopback diagnostic mode */
2181 spin_lock_irq(&phba->hbalock);
2182 phba->link_flag &= ~LS_LOOPBACK_MODE;
2183 spin_unlock_irq(&phba->hbalock);
2185 lpfc_bsg_diag_mode_exit(phba);
2188 /* make error code available to userspace */
2189 bsg_reply->result = rc;
2190 /* complete the job back to userspace if no error */
2192 bsg_job_done(job, bsg_reply->result,
2193 bsg_reply->reply_payload_rcv_len);
2198 * lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode
2199 * @job: LPFC_BSG_VENDOR_DIAG_MODE
2201 * This function is responsible for responding to check and dispatch bsg diag
2202 * command from the user to proper driver action routines.
2205 lpfc_bsg_diag_loopback_mode(struct bsg_job *job)
2207 struct Scsi_Host *shost;
2208 struct lpfc_vport *vport;
2209 struct lpfc_hba *phba;
2212 shost = fc_bsg_to_shost(job);
2215 vport = shost_priv(shost);
2222 if (phba->sli_rev < LPFC_SLI_REV4)
2223 rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job);
2224 else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
2225 LPFC_SLI_INTF_IF_TYPE_2)
2226 rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job);
2234 * lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode
2235 * @job: LPFC_BSG_VENDOR_DIAG_MODE_END
2237 * This function is responsible for responding to check and dispatch bsg diag
2238 * command from the user to proper driver action routines.
2241 lpfc_sli4_bsg_diag_mode_end(struct bsg_job *job)
2243 struct fc_bsg_request *bsg_request = job->request;
2244 struct fc_bsg_reply *bsg_reply = job->reply;
2245 struct Scsi_Host *shost;
2246 struct lpfc_vport *vport;
2247 struct lpfc_hba *phba;
2248 struct diag_mode_set *loopback_mode_end_cmd;
2252 shost = fc_bsg_to_shost(job);
2255 vport = shost_priv(shost);
2262 if (phba->sli_rev < LPFC_SLI_REV4)
2264 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2265 LPFC_SLI_INTF_IF_TYPE_2)
2268 /* clear loopback diagnostic mode */
2269 spin_lock_irq(&phba->hbalock);
2270 phba->link_flag &= ~LS_LOOPBACK_MODE;
2271 spin_unlock_irq(&phba->hbalock);
2272 loopback_mode_end_cmd = (struct diag_mode_set *)
2273 bsg_request->rqst_data.h_vendor.vendor_cmd;
2274 timeout = loopback_mode_end_cmd->timeout * 100;
2276 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
2278 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2279 "3139 Failed to bring link to diagnostic "
2280 "state, rc:x%x\n", rc);
2281 goto loopback_mode_end_exit;
2284 /* wait for link down before proceeding */
2286 while (phba->link_state != LPFC_LINK_DOWN) {
2287 if (i++ > timeout) {
2288 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2289 "3140 Timeout waiting for link to "
2290 "diagnostic mode_end, timeout:%d ms\n",
2292 /* there is nothing much we can do here */
2298 /* reset port resource registrations */
2299 rc = lpfc_selective_reset(phba);
2300 phba->pport->fc_myDID = 0;
2302 loopback_mode_end_exit:
2303 /* make return code available to userspace */
2304 bsg_reply->result = rc;
2305 /* complete the job back to userspace if no error */
2307 bsg_job_done(job, bsg_reply->result,
2308 bsg_reply->reply_payload_rcv_len);
2313 * lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test
2314 * @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST
2316 * This function is to perform SLI4 diag link test request from the user
2320 lpfc_sli4_bsg_link_diag_test(struct bsg_job *job)
2322 struct fc_bsg_request *bsg_request = job->request;
2323 struct fc_bsg_reply *bsg_reply = job->reply;
2324 struct Scsi_Host *shost;
2325 struct lpfc_vport *vport;
2326 struct lpfc_hba *phba;
2327 LPFC_MBOXQ_t *pmboxq;
2328 struct sli4_link_diag *link_diag_test_cmd;
2329 uint32_t req_len, alloc_len;
2330 struct lpfc_mbx_run_link_diag_test *run_link_diag_test;
2331 union lpfc_sli4_cfg_shdr *shdr;
2332 uint32_t shdr_status, shdr_add_status;
2333 struct diag_status *diag_status_reply;
2334 int mbxstatus, rc = 0;
2336 shost = fc_bsg_to_shost(job);
2341 vport = shost_priv(shost);
2352 if (phba->sli_rev < LPFC_SLI_REV4) {
2356 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2357 LPFC_SLI_INTF_IF_TYPE_2) {
2362 if (job->request_len < sizeof(struct fc_bsg_request) +
2363 sizeof(struct sli4_link_diag)) {
2364 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2365 "3013 Received LINK DIAG TEST request "
2366 " size:%d below the minimum size:%d\n",
2368 (int)(sizeof(struct fc_bsg_request) +
2369 sizeof(struct sli4_link_diag)));
2374 rc = lpfc_bsg_diag_mode_enter(phba);
2378 link_diag_test_cmd = (struct sli4_link_diag *)
2379 bsg_request->rqst_data.h_vendor.vendor_cmd;
2381 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
2386 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2389 goto link_diag_test_exit;
2392 req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
2393 sizeof(struct lpfc_sli4_cfg_mhdr));
2394 alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2395 LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
2396 req_len, LPFC_SLI4_MBX_EMBED);
2397 if (alloc_len != req_len) {
2399 goto link_diag_test_exit;
2401 run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test;
2402 bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req,
2403 phba->sli4_hba.lnk_info.lnk_no);
2404 bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req,
2405 phba->sli4_hba.lnk_info.lnk_tp);
2406 bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req,
2407 link_diag_test_cmd->test_id);
2408 bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req,
2409 link_diag_test_cmd->loops);
2410 bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req,
2411 link_diag_test_cmd->test_version);
2412 bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req,
2413 link_diag_test_cmd->error_action);
2415 mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2417 shdr = (union lpfc_sli4_cfg_shdr *)
2418 &pmboxq->u.mqe.un.sli4_config.header.cfg_shdr;
2419 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
2420 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
2421 if (shdr_status || shdr_add_status || mbxstatus) {
2422 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
2423 "3010 Run link diag test mailbox failed with "
2424 "mbx_status x%x status x%x, add_status x%x\n",
2425 mbxstatus, shdr_status, shdr_add_status);
2428 diag_status_reply = (struct diag_status *)
2429 bsg_reply->reply_data.vendor_reply.vendor_rsp;
2431 if (job->reply_len <
2432 sizeof(struct fc_bsg_request) + sizeof(struct diag_status)) {
2433 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2434 "3012 Received Run link diag test reply "
2435 "below minimum size (%d): reply_len:%d\n",
2436 (int)(sizeof(struct fc_bsg_request) +
2437 sizeof(struct diag_status)),
2443 diag_status_reply->mbox_status = mbxstatus;
2444 diag_status_reply->shdr_status = shdr_status;
2445 diag_status_reply->shdr_add_status = shdr_add_status;
2447 link_diag_test_exit:
2448 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
2451 mempool_free(pmboxq, phba->mbox_mem_pool);
2453 lpfc_bsg_diag_mode_exit(phba);
2456 /* make error code available to userspace */
2457 bsg_reply->result = rc;
2458 /* complete the job back to userspace if no error */
2460 bsg_job_done(job, bsg_reply->result,
2461 bsg_reply->reply_payload_rcv_len);
2466 * lpfcdiag_loop_self_reg - obtains a remote port login id
2467 * @phba: Pointer to HBA context object
2468 * @rpi: Pointer to a remote port login id
2470 * This function obtains a remote port login id so the diag loopback test
2471 * can send and receive its own unsolicited CT command.
2473 static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi)
2476 struct lpfc_dmabuf *dmabuff;
2479 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2483 if (phba->sli_rev < LPFC_SLI_REV4)
2484 status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID,
2485 (uint8_t *)&phba->pport->fc_sparam,
2488 *rpi = lpfc_sli4_alloc_rpi(phba);
2489 status = lpfc_reg_rpi(phba, phba->pport->vpi,
2490 phba->pport->fc_myDID,
2491 (uint8_t *)&phba->pport->fc_sparam,
2496 mempool_free(mbox, phba->mbox_mem_pool);
2497 if (phba->sli_rev == LPFC_SLI_REV4)
2498 lpfc_sli4_free_rpi(phba, *rpi);
2502 dmabuff = (struct lpfc_dmabuf *) mbox->context1;
2503 mbox->context1 = NULL;
2504 mbox->context2 = NULL;
2505 status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
2507 if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
2508 lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
2510 if (status != MBX_TIMEOUT)
2511 mempool_free(mbox, phba->mbox_mem_pool);
2512 if (phba->sli_rev == LPFC_SLI_REV4)
2513 lpfc_sli4_free_rpi(phba, *rpi);
2517 if (phba->sli_rev < LPFC_SLI_REV4)
2518 *rpi = mbox->u.mb.un.varWords[0];
2520 lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
2522 mempool_free(mbox, phba->mbox_mem_pool);
2527 * lpfcdiag_loop_self_unreg - unregs from the rpi
2528 * @phba: Pointer to HBA context object
2529 * @rpi: Remote port login id
2531 * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg
2533 static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi)
2538 /* Allocate mboxq structure */
2539 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2543 if (phba->sli_rev < LPFC_SLI_REV4)
2544 lpfc_unreg_login(phba, 0, rpi, mbox);
2546 lpfc_unreg_login(phba, phba->pport->vpi,
2547 phba->sli4_hba.rpi_ids[rpi], mbox);
2549 status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
2551 if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
2552 if (status != MBX_TIMEOUT)
2553 mempool_free(mbox, phba->mbox_mem_pool);
2556 mempool_free(mbox, phba->mbox_mem_pool);
2557 if (phba->sli_rev == LPFC_SLI_REV4)
2558 lpfc_sli4_free_rpi(phba, rpi);
2563 * lpfcdiag_loop_get_xri - obtains the transmit and receive ids
2564 * @phba: Pointer to HBA context object
2565 * @rpi: Remote port login id
2566 * @txxri: Pointer to transmit exchange id
2567 * @rxxri: Pointer to response exchabge id
2569 * This function obtains the transmit and receive ids required to send
2570 * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp
2571 * flags are used to the unsolicted response handler is able to process
2572 * the ct command sent on the same port.
2574 static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi,
2575 uint16_t *txxri, uint16_t * rxxri)
2577 struct lpfc_bsg_event *evt;
2578 struct lpfc_iocbq *cmdiocbq, *rspiocbq;
2580 struct lpfc_dmabuf *dmabuf;
2581 struct ulp_bde64 *bpl = NULL;
2582 struct lpfc_sli_ct_request *ctreq = NULL;
2585 int iocb_stat = IOCB_SUCCESS;
2586 unsigned long flags;
2590 evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
2591 SLI_CT_ELX_LOOPBACK);
2595 spin_lock_irqsave(&phba->ct_ev_lock, flags);
2596 list_add(&evt->node, &phba->ct_ev_waiters);
2597 lpfc_bsg_event_ref(evt);
2598 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
2600 cmdiocbq = lpfc_sli_get_iocbq(phba);
2601 rspiocbq = lpfc_sli_get_iocbq(phba);
2603 dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2605 dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys);
2607 INIT_LIST_HEAD(&dmabuf->list);
2608 bpl = (struct ulp_bde64 *) dmabuf->virt;
2609 memset(bpl, 0, sizeof(*bpl));
2610 ctreq = (struct lpfc_sli_ct_request *)(bpl + 1);
2612 le32_to_cpu(putPaddrHigh(dmabuf->phys +
2615 le32_to_cpu(putPaddrLow(dmabuf->phys +
2617 bpl->tus.f.bdeFlags = 0;
2618 bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ;
2619 bpl->tus.w = le32_to_cpu(bpl->tus.w);
2623 if (cmdiocbq == NULL || rspiocbq == NULL ||
2624 dmabuf == NULL || bpl == NULL || ctreq == NULL ||
2625 dmabuf->virt == NULL) {
2627 goto err_get_xri_exit;
2630 cmd = &cmdiocbq->iocb;
2631 rsp = &rspiocbq->iocb;
2633 memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
2635 ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
2636 ctreq->RevisionId.bits.InId = 0;
2637 ctreq->FsType = SLI_CT_ELX_LOOPBACK;
2638 ctreq->FsSubType = 0;
2639 ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP;
2640 ctreq->CommandResponse.bits.Size = 0;
2643 cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys);
2644 cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys);
2645 cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
2646 cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl);
2648 cmd->un.xseq64.w5.hcsw.Fctl = LA;
2649 cmd->un.xseq64.w5.hcsw.Dfctl = 0;
2650 cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
2651 cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
2653 cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR;
2654 cmd->ulpBdeCount = 1;
2656 cmd->ulpClass = CLASS3;
2657 cmd->ulpContext = rpi;
2659 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
2660 cmdiocbq->vport = phba->pport;
2661 cmdiocbq->iocb_cmpl = NULL;
2663 iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
2665 (phba->fc_ratov * 2)
2666 + LPFC_DRVR_TIMEOUT);
2667 if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOSTAT_SUCCESS)) {
2669 goto err_get_xri_exit;
2671 *txxri = rsp->ulpContext;
2674 evt->wait_time_stamp = jiffies;
2675 time_left = wait_event_interruptible_timeout(
2676 evt->wq, !list_empty(&evt->events_to_see),
2677 msecs_to_jiffies(1000 *
2678 ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
2679 if (list_empty(&evt->events_to_see))
2680 ret_val = (time_left) ? -EINTR : -ETIMEDOUT;
2682 spin_lock_irqsave(&phba->ct_ev_lock, flags);
2683 list_move(evt->events_to_see.prev, &evt->events_to_get);
2684 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
2685 *rxxri = (list_entry(evt->events_to_get.prev,
2686 typeof(struct event_data),
2692 spin_lock_irqsave(&phba->ct_ev_lock, flags);
2693 lpfc_bsg_event_unref(evt); /* release ref */
2694 lpfc_bsg_event_unref(evt); /* delete */
2695 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
2699 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2703 if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT))
2704 lpfc_sli_release_iocbq(phba, cmdiocbq);
2706 lpfc_sli_release_iocbq(phba, rspiocbq);
2711 * lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers
2712 * @phba: Pointer to HBA context object
2714 * This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and
2715 * returns the pointer to the buffer.
2717 static struct lpfc_dmabuf *
2718 lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba)
2720 struct lpfc_dmabuf *dmabuf;
2721 struct pci_dev *pcidev = phba->pcidev;
2723 /* allocate dma buffer struct */
2724 dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2728 INIT_LIST_HEAD(&dmabuf->list);
2730 /* now, allocate dma buffer */
2731 dmabuf->virt = dma_zalloc_coherent(&pcidev->dev, BSG_MBOX_SIZE,
2732 &(dmabuf->phys), GFP_KERNEL);
2734 if (!dmabuf->virt) {
2743 * lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer
2744 * @phba: Pointer to HBA context object.
2745 * @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor.
2747 * This routine just simply frees a dma buffer and its associated buffer
2748 * descriptor referred by @dmabuf.
2751 lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf)
2753 struct pci_dev *pcidev = phba->pcidev;
2759 dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE,
2760 dmabuf->virt, dmabuf->phys);
2766 * lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers
2767 * @phba: Pointer to HBA context object.
2768 * @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs.
2770 * This routine just simply frees all dma buffers and their associated buffer
2771 * descriptors referred by @dmabuf_list.
2774 lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba,
2775 struct list_head *dmabuf_list)
2777 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
2779 if (list_empty(dmabuf_list))
2782 list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) {
2783 list_del_init(&dmabuf->list);
2784 lpfc_bsg_dma_page_free(phba, dmabuf);
2790 * diag_cmd_data_alloc - fills in a bde struct with dma buffers
2791 * @phba: Pointer to HBA context object
2792 * @bpl: Pointer to 64 bit bde structure
2793 * @size: Number of bytes to process
2794 * @nocopydata: Flag to copy user data into the allocated buffer
2796 * This function allocates page size buffers and populates an lpfc_dmabufext.
2797 * If allowed the user data pointed to with indataptr is copied into the kernel
2798 * memory. The chained list of page size buffers is returned.
2800 static struct lpfc_dmabufext *
2801 diag_cmd_data_alloc(struct lpfc_hba *phba,
2802 struct ulp_bde64 *bpl, uint32_t size,
2805 struct lpfc_dmabufext *mlist = NULL;
2806 struct lpfc_dmabufext *dmp;
2807 int cnt, offset = 0, i = 0;
2808 struct pci_dev *pcidev;
2810 pcidev = phba->pcidev;
2813 /* We get chunks of 4K */
2814 if (size > BUF_SZ_4K)
2819 /* allocate struct lpfc_dmabufext buffer header */
2820 dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL);
2824 INIT_LIST_HEAD(&dmp->dma.list);
2826 /* Queue it to a linked list */
2828 list_add_tail(&dmp->dma.list, &mlist->dma.list);
2832 /* allocate buffer */
2833 dmp->dma.virt = dma_alloc_coherent(&pcidev->dev,
2844 bpl->tus.f.bdeFlags = 0;
2845 pci_dma_sync_single_for_device(phba->pcidev,
2846 dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE);
2849 memset((uint8_t *)dmp->dma.virt, 0, cnt);
2850 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
2853 /* build buffer ptr list for IOCB */
2854 bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys));
2855 bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys));
2856 bpl->tus.f.bdeSize = (ushort) cnt;
2857 bpl->tus.w = le32_to_cpu(bpl->tus.w);
2870 diag_cmd_data_free(phba, mlist);
2875 * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd
2876 * @phba: Pointer to HBA context object
2877 * @rxxri: Receive exchange id
2878 * @len: Number of data bytes
2880 * This function allocates and posts a data buffer of sufficient size to receive
2881 * an unsolicted CT command.
2883 static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri,
2886 struct lpfc_sli_ring *pring;
2887 struct lpfc_iocbq *cmdiocbq;
2889 struct list_head head, *curr, *next;
2890 struct lpfc_dmabuf *rxbmp;
2891 struct lpfc_dmabuf *dmp;
2892 struct lpfc_dmabuf *mp[2] = {NULL, NULL};
2893 struct ulp_bde64 *rxbpl = NULL;
2895 struct lpfc_dmabufext *rxbuffer = NULL;
2900 pring = lpfc_phba_elsring(phba);
2902 cmdiocbq = lpfc_sli_get_iocbq(phba);
2903 rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2904 if (rxbmp != NULL) {
2905 rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys);
2907 INIT_LIST_HEAD(&rxbmp->list);
2908 rxbpl = (struct ulp_bde64 *) rxbmp->virt;
2909 rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0);
2913 if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) {
2915 goto err_post_rxbufs_exit;
2918 /* Queue buffers for the receive exchange */
2919 num_bde = (uint32_t)rxbuffer->flag;
2920 dmp = &rxbuffer->dma;
2922 cmd = &cmdiocbq->iocb;
2925 INIT_LIST_HEAD(&head);
2926 list_add_tail(&head, &dmp->list);
2927 list_for_each_safe(curr, next, &head) {
2928 mp[i] = list_entry(curr, struct lpfc_dmabuf, list);
2931 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2932 mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba);
2933 cmd->un.quexri64cx.buff.bde.addrHigh =
2934 putPaddrHigh(mp[i]->phys);
2935 cmd->un.quexri64cx.buff.bde.addrLow =
2936 putPaddrLow(mp[i]->phys);
2937 cmd->un.quexri64cx.buff.bde.tus.f.bdeSize =
2938 ((struct lpfc_dmabufext *)mp[i])->size;
2939 cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag;
2940 cmd->ulpCommand = CMD_QUE_XRI64_CX;
2943 cmd->ulpBdeCount = 1;
2944 cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0;
2947 cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys);
2948 cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys);
2949 cmd->un.cont64[i].tus.f.bdeSize =
2950 ((struct lpfc_dmabufext *)mp[i])->size;
2951 cmd->ulpBdeCount = ++i;
2953 if ((--num_bde > 0) && (i < 2))
2956 cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX;
2960 cmd->ulpClass = CLASS3;
2961 cmd->ulpContext = rxxri;
2963 iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
2965 if (iocb_stat == IOCB_ERROR) {
2966 diag_cmd_data_free(phba,
2967 (struct lpfc_dmabufext *)mp[0]);
2969 diag_cmd_data_free(phba,
2970 (struct lpfc_dmabufext *)mp[1]);
2971 dmp = list_entry(next, struct lpfc_dmabuf, list);
2973 goto err_post_rxbufs_exit;
2976 lpfc_sli_ringpostbuf_put(phba, pring, mp[0]);
2978 lpfc_sli_ringpostbuf_put(phba, pring, mp[1]);
2982 /* The iocb was freed by lpfc_sli_issue_iocb */
2983 cmdiocbq = lpfc_sli_get_iocbq(phba);
2985 dmp = list_entry(next, struct lpfc_dmabuf, list);
2987 goto err_post_rxbufs_exit;
2990 cmd = &cmdiocbq->iocb;
2995 err_post_rxbufs_exit:
2999 lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys);
3004 lpfc_sli_release_iocbq(phba, cmdiocbq);
3009 * lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself
3010 * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job
3012 * This function receives a user data buffer to be transmitted and received on
3013 * the same port, the link must be up and in loopback mode prior
3015 * 1. A kernel buffer is allocated to copy the user data into.
3016 * 2. The port registers with "itself".
3017 * 3. The transmit and receive exchange ids are obtained.
3018 * 4. The receive exchange id is posted.
3019 * 5. A new els loopback event is created.
3020 * 6. The command and response iocbs are allocated.
3021 * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback.
3023 * This function is meant to be called n times while the port is in loopback
3024 * so it is the apps responsibility to issue a reset to take the port out
3028 lpfc_bsg_diag_loopback_run(struct bsg_job *job)
3030 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
3031 struct fc_bsg_reply *bsg_reply = job->reply;
3032 struct lpfc_hba *phba = vport->phba;
3033 struct lpfc_bsg_event *evt;
3034 struct event_data *evdat;
3035 struct lpfc_sli *psli = &phba->sli;
3038 size_t segment_len = 0, segment_offset = 0, current_offset = 0;
3040 struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL;
3041 IOCB_t *cmd, *rsp = NULL;
3042 struct lpfc_sli_ct_request *ctreq;
3043 struct lpfc_dmabuf *txbmp;
3044 struct ulp_bde64 *txbpl = NULL;
3045 struct lpfc_dmabufext *txbuffer = NULL;
3046 struct list_head head;
3047 struct lpfc_dmabuf *curr;
3048 uint16_t txxri = 0, rxxri;
3050 uint8_t *ptr = NULL, *rx_databuf = NULL;
3053 int iocb_stat = IOCB_SUCCESS;
3054 unsigned long flags;
3055 void *dataout = NULL;
3058 /* in case no data is returned return just the return code */
3059 bsg_reply->reply_payload_rcv_len = 0;
3061 if (job->request_len <
3062 sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) {
3063 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3064 "2739 Received DIAG TEST request below minimum "
3067 goto loopback_test_exit;
3070 if (job->request_payload.payload_len !=
3071 job->reply_payload.payload_len) {
3073 goto loopback_test_exit;
3076 if ((phba->link_state == LPFC_HBA_ERROR) ||
3077 (psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
3078 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
3080 goto loopback_test_exit;
3083 if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) {
3085 goto loopback_test_exit;
3088 size = job->request_payload.payload_len;
3089 full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */
3091 if ((size == 0) || (size > 80 * BUF_SZ_4K)) {
3093 goto loopback_test_exit;
3096 if (full_size >= BUF_SZ_4K) {
3098 * Allocate memory for ioctl data. If buffer is bigger than 64k,
3099 * then we allocate 64k and re-use that buffer over and over to
3100 * xfer the whole block. This is because Linux kernel has a
3101 * problem allocating more than 120k of kernel space memory. Saw
3102 * problem with GET_FCPTARGETMAPPING...
3104 if (size <= (64 * 1024))
3105 total_mem = full_size;
3107 total_mem = 64 * 1024;
3109 /* Allocate memory for ioctl data */
3110 total_mem = BUF_SZ_4K;
3112 dataout = kmalloc(total_mem, GFP_KERNEL);
3113 if (dataout == NULL) {
3115 goto loopback_test_exit;
3119 ptr += ELX_LOOPBACK_HEADER_SZ;
3120 sg_copy_to_buffer(job->request_payload.sg_list,
3121 job->request_payload.sg_cnt,
3123 rc = lpfcdiag_loop_self_reg(phba, &rpi);
3125 goto loopback_test_exit;
3127 if (phba->sli_rev < LPFC_SLI_REV4) {
3128 rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri);
3130 lpfcdiag_loop_self_unreg(phba, rpi);
3131 goto loopback_test_exit;
3134 rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size);
3136 lpfcdiag_loop_self_unreg(phba, rpi);
3137 goto loopback_test_exit;
3140 evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
3141 SLI_CT_ELX_LOOPBACK);
3143 lpfcdiag_loop_self_unreg(phba, rpi);
3145 goto loopback_test_exit;
3148 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3149 list_add(&evt->node, &phba->ct_ev_waiters);
3150 lpfc_bsg_event_ref(evt);
3151 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3153 cmdiocbq = lpfc_sli_get_iocbq(phba);
3154 if (phba->sli_rev < LPFC_SLI_REV4)
3155 rspiocbq = lpfc_sli_get_iocbq(phba);
3156 txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3159 txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys);
3161 INIT_LIST_HEAD(&txbmp->list);
3162 txbpl = (struct ulp_bde64 *) txbmp->virt;
3163 txbuffer = diag_cmd_data_alloc(phba,
3164 txbpl, full_size, 0);
3168 if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) {
3170 goto err_loopback_test_exit;
3172 if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) {
3174 goto err_loopback_test_exit;
3177 cmd = &cmdiocbq->iocb;
3178 if (phba->sli_rev < LPFC_SLI_REV4)
3179 rsp = &rspiocbq->iocb;
3181 INIT_LIST_HEAD(&head);
3182 list_add_tail(&head, &txbuffer->dma.list);
3183 list_for_each_entry(curr, &head, list) {
3184 segment_len = ((struct lpfc_dmabufext *)curr)->size;
3185 if (current_offset == 0) {
3187 memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
3188 ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
3189 ctreq->RevisionId.bits.InId = 0;
3190 ctreq->FsType = SLI_CT_ELX_LOOPBACK;
3191 ctreq->FsSubType = 0;
3192 ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA;
3193 ctreq->CommandResponse.bits.Size = size;
3194 segment_offset = ELX_LOOPBACK_HEADER_SZ;
3198 BUG_ON(segment_offset >= segment_len);
3199 memcpy(curr->virt + segment_offset,
3200 ptr + current_offset,
3201 segment_len - segment_offset);
3203 current_offset += segment_len - segment_offset;
3204 BUG_ON(current_offset > size);
3208 /* Build the XMIT_SEQUENCE iocb */
3209 num_bde = (uint32_t)txbuffer->flag;
3211 cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys);
3212 cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys);
3213 cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
3214 cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64));
3216 cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
3217 cmd->un.xseq64.w5.hcsw.Dfctl = 0;
3218 cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
3219 cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
3221 cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
3222 cmd->ulpBdeCount = 1;
3224 cmd->ulpClass = CLASS3;
3226 if (phba->sli_rev < LPFC_SLI_REV4) {
3227 cmd->ulpContext = txxri;
3229 cmd->un.xseq64.bdl.ulpIoTag32 = 0;
3230 cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi];
3231 cmdiocbq->context3 = txbmp;
3232 cmdiocbq->sli4_xritag = NO_XRI;
3233 cmd->unsli3.rcvsli3.ox_id = 0xffff;
3235 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
3236 cmdiocbq->iocb_flag |= LPFC_IO_LOOPBACK;
3237 cmdiocbq->vport = phba->pport;
3238 cmdiocbq->iocb_cmpl = NULL;
3239 iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
3240 rspiocbq, (phba->fc_ratov * 2) +
3243 if ((iocb_stat != IOCB_SUCCESS) ||
3244 ((phba->sli_rev < LPFC_SLI_REV4) &&
3245 (rsp->ulpStatus != IOSTAT_SUCCESS))) {
3246 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3247 "3126 Failed loopback test issue iocb: "
3248 "iocb_stat:x%x\n", iocb_stat);
3250 goto err_loopback_test_exit;
3254 time_left = wait_event_interruptible_timeout(
3255 evt->wq, !list_empty(&evt->events_to_see),
3256 msecs_to_jiffies(1000 *
3257 ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
3259 if (list_empty(&evt->events_to_see)) {
3260 rc = (time_left) ? -EINTR : -ETIMEDOUT;
3261 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3262 "3125 Not receiving unsolicited event, "
3265 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3266 list_move(evt->events_to_see.prev, &evt->events_to_get);
3267 evdat = list_entry(evt->events_to_get.prev,
3268 typeof(*evdat), node);
3269 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3270 rx_databuf = evdat->data;
3271 if (evdat->len != full_size) {
3272 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3273 "1603 Loopback test did not receive expected "
3274 "data length. actual length 0x%x expected "
3276 evdat->len, full_size);
3278 } else if (rx_databuf == NULL)
3282 /* skip over elx loopback header */
3283 rx_databuf += ELX_LOOPBACK_HEADER_SZ;
3284 bsg_reply->reply_payload_rcv_len =
3285 sg_copy_from_buffer(job->reply_payload.sg_list,
3286 job->reply_payload.sg_cnt,
3288 bsg_reply->reply_payload_rcv_len = size;
3292 err_loopback_test_exit:
3293 lpfcdiag_loop_self_unreg(phba, rpi);
3295 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3296 lpfc_bsg_event_unref(evt); /* release ref */
3297 lpfc_bsg_event_unref(evt); /* delete */
3298 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3300 if ((cmdiocbq != NULL) && (iocb_stat != IOCB_TIMEDOUT))
3301 lpfc_sli_release_iocbq(phba, cmdiocbq);
3303 if (rspiocbq != NULL)
3304 lpfc_sli_release_iocbq(phba, rspiocbq);
3306 if (txbmp != NULL) {
3307 if (txbpl != NULL) {
3308 if (txbuffer != NULL)
3309 diag_cmd_data_free(phba, txbuffer);
3310 lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys);
3317 /* make error code available to userspace */
3318 bsg_reply->result = rc;
3319 job->dd_data = NULL;
3320 /* complete the job back to userspace if no error */
3321 if (rc == IOCB_SUCCESS)
3322 bsg_job_done(job, bsg_reply->result,
3323 bsg_reply->reply_payload_rcv_len);
3328 * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command
3329 * @job: GET_DFC_REV fc_bsg_job
3332 lpfc_bsg_get_dfc_rev(struct bsg_job *job)
3334 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
3335 struct fc_bsg_reply *bsg_reply = job->reply;
3336 struct lpfc_hba *phba = vport->phba;
3337 struct get_mgmt_rev_reply *event_reply;
3340 if (job->request_len <
3341 sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) {
3342 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3343 "2740 Received GET_DFC_REV request below "
3349 event_reply = (struct get_mgmt_rev_reply *)
3350 bsg_reply->reply_data.vendor_reply.vendor_rsp;
3352 if (job->reply_len <
3353 sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) {
3354 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3355 "2741 Received GET_DFC_REV reply below "
3361 event_reply->info.a_Major = MANAGEMENT_MAJOR_REV;
3362 event_reply->info.a_Minor = MANAGEMENT_MINOR_REV;
3364 bsg_reply->result = rc;
3366 bsg_job_done(job, bsg_reply->result,
3367 bsg_reply->reply_payload_rcv_len);
3372 * lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler
3373 * @phba: Pointer to HBA context object.
3374 * @pmboxq: Pointer to mailbox command.
3376 * This is completion handler function for mailbox commands issued from
3377 * lpfc_bsg_issue_mbox function. This function is called by the
3378 * mailbox event handler function with no lock held. This function
3379 * will wake up thread waiting on the wait queue pointed by context1
3383 lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3385 struct bsg_job_data *dd_data;
3386 struct fc_bsg_reply *bsg_reply;
3387 struct bsg_job *job;
3389 unsigned long flags;
3390 uint8_t *pmb, *pmb_buf;
3392 dd_data = pmboxq->context1;
3395 * The outgoing buffer is readily referred from the dma buffer,
3396 * just need to get header part from mailboxq structure.
3398 pmb = (uint8_t *)&pmboxq->u.mb;
3399 pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
3400 memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
3402 /* Determine if job has been aborted */
3404 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3405 job = dd_data->set_job;
3407 /* Prevent timeout handling from trying to abort job */
3408 job->dd_data = NULL;
3410 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3412 /* Copy the mailbox data to the job if it is still active */
3415 bsg_reply = job->reply;
3416 size = job->reply_payload.payload_len;
3417 bsg_reply->reply_payload_rcv_len =
3418 sg_copy_from_buffer(job->reply_payload.sg_list,
3419 job->reply_payload.sg_cnt,
3423 dd_data->set_job = NULL;
3424 mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool);
3425 lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers);
3428 /* Complete the job if the job is still active */
3431 bsg_reply->result = 0;
3432 bsg_job_done(job, bsg_reply->result,
3433 bsg_reply->reply_payload_rcv_len);
3439 * lpfc_bsg_check_cmd_access - test for a supported mailbox command
3440 * @phba: Pointer to HBA context object.
3441 * @mb: Pointer to a mailbox object.
3442 * @vport: Pointer to a vport object.
3444 * Some commands require the port to be offline, some may not be called from
3447 static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba,
3448 MAILBOX_t *mb, struct lpfc_vport *vport)
3450 /* return negative error values for bsg job */
3451 switch (mb->mbxCommand) {
3455 case MBX_CONFIG_LINK:
3456 case MBX_CONFIG_RING:
3457 case MBX_RESET_RING:
3458 case MBX_UNREG_LOGIN:
3460 case MBX_DUMP_CONTEXT:
3464 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3465 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3466 "2743 Command 0x%x is illegal in on-line "
3472 case MBX_WRITE_VPARMS:
3475 case MBX_READ_CONFIG:
3476 case MBX_READ_RCONFIG:
3477 case MBX_READ_STATUS:
3480 case MBX_READ_LNK_STAT:
3481 case MBX_DUMP_MEMORY:
3483 case MBX_UPDATE_CFG:
3484 case MBX_KILL_BOARD:
3485 case MBX_READ_TOPOLOGY:
3487 case MBX_LOAD_EXP_ROM:
3489 case MBX_DEL_LD_ENTRY:
3492 case MBX_SLI4_CONFIG:
3493 case MBX_READ_EVENT_LOG:
3494 case MBX_READ_EVENT_LOG_STATUS:
3495 case MBX_WRITE_EVENT_LOG:
3496 case MBX_PORT_CAPABILITIES:
3497 case MBX_PORT_IOV_CONTROL:
3498 case MBX_RUN_BIU_DIAG64:
3500 case MBX_SET_VARIABLE:
3501 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3502 "1226 mbox: set_variable 0x%x, 0x%x\n",
3504 mb->un.varWords[1]);
3505 if ((mb->un.varWords[0] == SETVAR_MLOMNT)
3506 && (mb->un.varWords[1] == 1)) {
3507 phba->wait_4_mlo_maint_flg = 1;
3508 } else if (mb->un.varWords[0] == SETVAR_MLORST) {
3509 spin_lock_irq(&phba->hbalock);
3510 phba->link_flag &= ~LS_LOOPBACK_MODE;
3511 spin_unlock_irq(&phba->hbalock);
3512 phba->fc_topology = LPFC_TOPOLOGY_PT_PT;
3515 case MBX_READ_SPARM64:
3517 case MBX_REG_LOGIN64:
3518 case MBX_CONFIG_PORT:
3519 case MBX_RUN_BIU_DIAG:
3521 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3522 "2742 Unknown Command 0x%x\n",
3531 * lpfc_bsg_mbox_ext_cleanup - clean up context of multi-buffer mbox session
3532 * @phba: Pointer to HBA context object.
3534 * This is routine clean up and reset BSG handling of multi-buffer mbox
3538 lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba)
3540 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE)
3543 /* free all memory, including dma buffers */
3544 lpfc_bsg_dma_page_list_free(phba,
3545 &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3546 lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf);
3547 /* multi-buffer write mailbox command pass-through complete */
3548 memset((char *)&phba->mbox_ext_buf_ctx, 0,
3549 sizeof(struct lpfc_mbox_ext_buf_ctx));
3550 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3556 * lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl
3557 * @phba: Pointer to HBA context object.
3558 * @pmboxq: Pointer to mailbox command.
3560 * This is routine handles BSG job for mailbox commands completions with
3561 * multiple external buffers.
3563 static struct bsg_job *
3564 lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3566 struct bsg_job_data *dd_data;
3567 struct bsg_job *job;
3568 struct fc_bsg_reply *bsg_reply;
3569 uint8_t *pmb, *pmb_buf;
3570 unsigned long flags;
3573 struct lpfc_dmabuf *dmabuf;
3574 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3577 dd_data = pmboxq->context1;
3579 /* Determine if job has been aborted */
3580 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3581 job = dd_data->set_job;
3583 bsg_reply = job->reply;
3584 /* Prevent timeout handling from trying to abort job */
3585 job->dd_data = NULL;
3587 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3590 * The outgoing buffer is readily referred from the dma buffer,
3591 * just need to get header part from mailboxq structure.
3594 pmb = (uint8_t *)&pmboxq->u.mb;
3595 pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
3596 /* Copy the byte swapped response mailbox back to the user */
3597 memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
3598 /* if there is any non-embedded extended data copy that too */
3599 dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf;
3600 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
3601 if (!bsg_bf_get(lpfc_mbox_hdr_emb,
3602 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
3603 pmbx = (uint8_t *)dmabuf->virt;
3604 /* byte swap the extended data following the mailbox command */
3605 lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
3606 &pmbx[sizeof(MAILBOX_t)],
3607 sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len);
3610 /* Complete the job if the job is still active */
3613 size = job->reply_payload.payload_len;
3614 bsg_reply->reply_payload_rcv_len =
3615 sg_copy_from_buffer(job->reply_payload.sg_list,
3616 job->reply_payload.sg_cnt,
3619 /* result for successful */
3620 bsg_reply->result = 0;
3622 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3623 "2937 SLI_CONFIG ext-buffer maibox command "
3624 "(x%x/x%x) complete bsg job done, bsize:%d\n",
3625 phba->mbox_ext_buf_ctx.nembType,
3626 phba->mbox_ext_buf_ctx.mboxType, size);
3627 lpfc_idiag_mbxacc_dump_bsg_mbox(phba,
3628 phba->mbox_ext_buf_ctx.nembType,
3629 phba->mbox_ext_buf_ctx.mboxType,
3630 dma_ebuf, sta_pos_addr,
3631 phba->mbox_ext_buf_ctx.mbx_dmabuf, 0);
3633 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3634 "2938 SLI_CONFIG ext-buffer maibox "
3635 "command (x%x/x%x) failure, rc:x%x\n",
3636 phba->mbox_ext_buf_ctx.nembType,
3637 phba->mbox_ext_buf_ctx.mboxType, rc);
3642 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE;
3648 * lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox
3649 * @phba: Pointer to HBA context object.
3650 * @pmboxq: Pointer to mailbox command.
3652 * This is completion handler function for mailbox read commands with multiple
3656 lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3658 struct bsg_job *job;
3659 struct fc_bsg_reply *bsg_reply;
3661 job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
3663 /* handle the BSG job with mailbox command */
3665 pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
3667 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3668 "2939 SLI_CONFIG ext-buffer rd maibox command "
3669 "complete, ctxState:x%x, mbxStatus:x%x\n",
3670 phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
3672 if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1)
3673 lpfc_bsg_mbox_ext_session_reset(phba);
3675 /* free base driver mailbox structure memory */
3676 mempool_free(pmboxq, phba->mbox_mem_pool);
3678 /* if the job is still active, call job done */
3680 bsg_reply = job->reply;
3681 bsg_job_done(job, bsg_reply->result,
3682 bsg_reply->reply_payload_rcv_len);
3688 * lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox
3689 * @phba: Pointer to HBA context object.
3690 * @pmboxq: Pointer to mailbox command.
3692 * This is completion handler function for mailbox write commands with multiple
3696 lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3698 struct bsg_job *job;
3699 struct fc_bsg_reply *bsg_reply;
3701 job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
3703 /* handle the BSG job with the mailbox command */
3705 pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
3707 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3708 "2940 SLI_CONFIG ext-buffer wr maibox command "
3709 "complete, ctxState:x%x, mbxStatus:x%x\n",
3710 phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
3712 /* free all memory, including dma buffers */
3713 mempool_free(pmboxq, phba->mbox_mem_pool);
3714 lpfc_bsg_mbox_ext_session_reset(phba);
3716 /* if the job is still active, call job done */
3718 bsg_reply = job->reply;
3719 bsg_job_done(job, bsg_reply->result,
3720 bsg_reply->reply_payload_rcv_len);
3727 lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp,
3728 uint32_t index, struct lpfc_dmabuf *mbx_dmabuf,
3729 struct lpfc_dmabuf *ext_dmabuf)
3731 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3733 /* pointer to the start of mailbox command */
3734 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt;
3736 if (nemb_tp == nemb_mse) {
3738 sli_cfg_mbx->un.sli_config_emb0_subsys.
3740 putPaddrHigh(mbx_dmabuf->phys +
3742 sli_cfg_mbx->un.sli_config_emb0_subsys.
3744 putPaddrLow(mbx_dmabuf->phys +
3746 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3747 "2943 SLI_CONFIG(mse)[%d], "
3748 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3750 sli_cfg_mbx->un.sli_config_emb0_subsys.
3752 sli_cfg_mbx->un.sli_config_emb0_subsys.
3754 sli_cfg_mbx->un.sli_config_emb0_subsys.
3757 sli_cfg_mbx->un.sli_config_emb0_subsys.
3759 putPaddrHigh(ext_dmabuf->phys);
3760 sli_cfg_mbx->un.sli_config_emb0_subsys.
3762 putPaddrLow(ext_dmabuf->phys);
3763 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3764 "2944 SLI_CONFIG(mse)[%d], "
3765 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3767 sli_cfg_mbx->un.sli_config_emb0_subsys.
3769 sli_cfg_mbx->un.sli_config_emb0_subsys.
3771 sli_cfg_mbx->un.sli_config_emb0_subsys.
3776 sli_cfg_mbx->un.sli_config_emb1_subsys.
3778 putPaddrHigh(mbx_dmabuf->phys +
3780 sli_cfg_mbx->un.sli_config_emb1_subsys.
3782 putPaddrLow(mbx_dmabuf->phys +
3784 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3785 "3007 SLI_CONFIG(hbd)[%d], "
3786 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3788 bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
3790 sli_config_emb1_subsys.hbd[index]),
3791 sli_cfg_mbx->un.sli_config_emb1_subsys.
3793 sli_cfg_mbx->un.sli_config_emb1_subsys.
3797 sli_cfg_mbx->un.sli_config_emb1_subsys.
3799 putPaddrHigh(ext_dmabuf->phys);
3800 sli_cfg_mbx->un.sli_config_emb1_subsys.
3802 putPaddrLow(ext_dmabuf->phys);
3803 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3804 "3008 SLI_CONFIG(hbd)[%d], "
3805 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3807 bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
3809 sli_config_emb1_subsys.hbd[index]),
3810 sli_cfg_mbx->un.sli_config_emb1_subsys.
3812 sli_cfg_mbx->un.sli_config_emb1_subsys.
3820 * lpfc_bsg_sli_cfg_mse_read_cmd_ext - sli_config non-embedded mailbox cmd read
3821 * @phba: Pointer to HBA context object.
3822 * @mb: Pointer to a BSG mailbox object.
3823 * @nemb_tp: Enumerate of non-embedded mailbox command type.
3824 * @dmabuff: Pointer to a DMA buffer descriptor.
3826 * This routine performs SLI_CONFIG (0x9B) read mailbox command operation with
3827 * non-embedded external bufffers.
3830 lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct bsg_job *job,
3831 enum nemb_type nemb_tp,
3832 struct lpfc_dmabuf *dmabuf)
3834 struct fc_bsg_request *bsg_request = job->request;
3835 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3836 struct dfc_mbox_req *mbox_req;
3837 struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf;
3838 uint32_t ext_buf_cnt, ext_buf_index;
3839 struct lpfc_dmabuf *ext_dmabuf = NULL;
3840 struct bsg_job_data *dd_data = NULL;
3841 LPFC_MBOXQ_t *pmboxq = NULL;
3847 (struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
3849 /* pointer to the start of mailbox command */
3850 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
3852 if (nemb_tp == nemb_mse) {
3853 ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
3854 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
3855 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
3856 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3857 "2945 Handled SLI_CONFIG(mse) rd, "
3858 "ext_buf_cnt(%d) out of range(%d)\n",
3860 LPFC_MBX_SLI_CONFIG_MAX_MSE);
3864 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3865 "2941 Handled SLI_CONFIG(mse) rd, "
3866 "ext_buf_cnt:%d\n", ext_buf_cnt);
3868 /* sanity check on interface type for support */
3869 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3870 LPFC_SLI_INTF_IF_TYPE_2) {
3874 /* nemb_tp == nemb_hbd */
3875 ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
3876 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
3877 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3878 "2946 Handled SLI_CONFIG(hbd) rd, "
3879 "ext_buf_cnt(%d) out of range(%d)\n",
3881 LPFC_MBX_SLI_CONFIG_MAX_HBD);
3885 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3886 "2942 Handled SLI_CONFIG(hbd) rd, "
3887 "ext_buf_cnt:%d\n", ext_buf_cnt);
3890 /* before dma descriptor setup */
3891 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
3892 sta_pre_addr, dmabuf, ext_buf_cnt);
3894 /* reject non-embedded mailbox command with none external buffer */
3895 if (ext_buf_cnt == 0) {
3898 } else if (ext_buf_cnt > 1) {
3899 /* additional external read buffers */
3900 for (i = 1; i < ext_buf_cnt; i++) {
3901 ext_dmabuf = lpfc_bsg_dma_page_alloc(phba);
3906 list_add_tail(&ext_dmabuf->list,
3907 &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3911 /* bsg tracking structure */
3912 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
3918 /* mailbox command structure for base driver */
3919 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3924 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
3926 /* for the first external buffer */
3927 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
3929 /* for the rest of external buffer descriptors if any */
3930 if (ext_buf_cnt > 1) {
3932 list_for_each_entry_safe(curr_dmabuf, next_dmabuf,
3933 &phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) {
3934 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp,
3935 ext_buf_index, dmabuf,
3941 /* after dma descriptor setup */
3942 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
3943 sta_pos_addr, dmabuf, ext_buf_cnt);
3945 /* construct base driver mbox command */
3946 pmb = &pmboxq->u.mb;
3947 pmbx = (uint8_t *)dmabuf->virt;
3948 memcpy(pmb, pmbx, sizeof(*pmb));
3949 pmb->mbxOwner = OWN_HOST;
3950 pmboxq->vport = phba->pport;
3952 /* multi-buffer handling context */
3953 phba->mbox_ext_buf_ctx.nembType = nemb_tp;
3954 phba->mbox_ext_buf_ctx.mboxType = mbox_rd;
3955 phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
3956 phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
3957 phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
3958 phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
3960 /* callback for multi-buffer read mailbox command */
3961 pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl;
3963 /* context fields to callback function */
3964 pmboxq->context1 = dd_data;
3965 dd_data->type = TYPE_MBOX;
3966 dd_data->set_job = job;
3967 dd_data->context_un.mbox.pmboxq = pmboxq;
3968 dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
3969 job->dd_data = dd_data;
3972 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
3975 * Non-embedded mailbox subcommand data gets byte swapped here because
3976 * the lower level driver code only does the first 64 mailbox words.
3978 if ((!bsg_bf_get(lpfc_mbox_hdr_emb,
3979 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) &&
3980 (nemb_tp == nemb_mse))
3981 lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
3982 &pmbx[sizeof(MAILBOX_t)],
3983 sli_cfg_mbx->un.sli_config_emb0_subsys.
3986 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
3987 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
3988 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3989 "2947 Issued SLI_CONFIG ext-buffer "
3990 "maibox command, rc:x%x\n", rc);
3991 return SLI_CONFIG_HANDLED;
3993 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3994 "2948 Failed to issue SLI_CONFIG ext-buffer "
3995 "maibox command, rc:x%x\n", rc);
4000 mempool_free(pmboxq, phba->mbox_mem_pool);
4001 lpfc_bsg_dma_page_list_free(phba,
4002 &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4004 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
4009 * lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write
4010 * @phba: Pointer to HBA context object.
4011 * @mb: Pointer to a BSG mailbox object.
4012 * @dmabuff: Pointer to a DMA buffer descriptor.
4014 * This routine performs SLI_CONFIG (0x9B) write mailbox command operation with
4015 * non-embedded external bufffers.
4018 lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct bsg_job *job,
4019 enum nemb_type nemb_tp,
4020 struct lpfc_dmabuf *dmabuf)
4022 struct fc_bsg_request *bsg_request = job->request;
4023 struct fc_bsg_reply *bsg_reply = job->reply;
4024 struct dfc_mbox_req *mbox_req;
4025 struct lpfc_sli_config_mbox *sli_cfg_mbx;
4026 uint32_t ext_buf_cnt;
4027 struct bsg_job_data *dd_data = NULL;
4028 LPFC_MBOXQ_t *pmboxq = NULL;
4031 int rc = SLI_CONFIG_NOT_HANDLED, i;
4034 (struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
4036 /* pointer to the start of mailbox command */
4037 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
4039 if (nemb_tp == nemb_mse) {
4040 ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
4041 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
4042 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
4043 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4044 "2953 Failed SLI_CONFIG(mse) wr, "
4045 "ext_buf_cnt(%d) out of range(%d)\n",
4047 LPFC_MBX_SLI_CONFIG_MAX_MSE);
4050 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4051 "2949 Handled SLI_CONFIG(mse) wr, "
4052 "ext_buf_cnt:%d\n", ext_buf_cnt);
4054 /* sanity check on interface type for support */
4055 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4056 LPFC_SLI_INTF_IF_TYPE_2)
4058 /* nemb_tp == nemb_hbd */
4059 ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
4060 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
4061 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4062 "2954 Failed SLI_CONFIG(hbd) wr, "
4063 "ext_buf_cnt(%d) out of range(%d)\n",
4065 LPFC_MBX_SLI_CONFIG_MAX_HBD);
4068 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4069 "2950 Handled SLI_CONFIG(hbd) wr, "
4070 "ext_buf_cnt:%d\n", ext_buf_cnt);
4073 /* before dma buffer descriptor setup */
4074 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
4075 sta_pre_addr, dmabuf, ext_buf_cnt);
4077 if (ext_buf_cnt == 0)
4080 /* for the first external buffer */
4081 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
4083 /* after dma descriptor setup */
4084 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
4085 sta_pos_addr, dmabuf, ext_buf_cnt);
4087 /* log for looking forward */
4088 for (i = 1; i < ext_buf_cnt; i++) {
4089 if (nemb_tp == nemb_mse)
4090 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4091 "2951 SLI_CONFIG(mse), buf[%d]-length:%d\n",
4092 i, sli_cfg_mbx->un.sli_config_emb0_subsys.
4095 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4096 "2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n",
4097 i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
4098 &sli_cfg_mbx->un.sli_config_emb1_subsys.
4102 /* multi-buffer handling context */
4103 phba->mbox_ext_buf_ctx.nembType = nemb_tp;
4104 phba->mbox_ext_buf_ctx.mboxType = mbox_wr;
4105 phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
4106 phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
4107 phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
4108 phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
4110 if (ext_buf_cnt == 1) {
4111 /* bsg tracking structure */
4112 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
4118 /* mailbox command structure for base driver */
4119 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4124 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4125 pmb = &pmboxq->u.mb;
4126 mbx = (uint8_t *)dmabuf->virt;
4127 memcpy(pmb, mbx, sizeof(*pmb));
4128 pmb->mbxOwner = OWN_HOST;
4129 pmboxq->vport = phba->pport;
4131 /* callback for multi-buffer read mailbox command */
4132 pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
4134 /* context fields to callback function */
4135 pmboxq->context1 = dd_data;
4136 dd_data->type = TYPE_MBOX;
4137 dd_data->set_job = job;
4138 dd_data->context_un.mbox.pmboxq = pmboxq;
4139 dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx;
4140 job->dd_data = dd_data;
4144 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
4145 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4146 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
4147 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4148 "2955 Issued SLI_CONFIG ext-buffer "
4149 "maibox command, rc:x%x\n", rc);
4150 return SLI_CONFIG_HANDLED;
4152 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4153 "2956 Failed to issue SLI_CONFIG ext-buffer "
4154 "maibox command, rc:x%x\n", rc);
4159 /* wait for additoinal external buffers */
4161 bsg_reply->result = 0;
4162 bsg_job_done(job, bsg_reply->result,
4163 bsg_reply->reply_payload_rcv_len);
4164 return SLI_CONFIG_HANDLED;
4168 mempool_free(pmboxq, phba->mbox_mem_pool);
4175 * lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer
4176 * @phba: Pointer to HBA context object.
4177 * @mb: Pointer to a BSG mailbox object.
4178 * @dmabuff: Pointer to a DMA buffer descriptor.
4180 * This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded
4181 * external bufffers, including both 0x9B with non-embedded MSEs and 0x9B
4182 * with embedded sussystem 0x1 and opcodes with external HBDs.
4185 lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct bsg_job *job,
4186 struct lpfc_dmabuf *dmabuf)
4188 struct lpfc_sli_config_mbox *sli_cfg_mbx;
4191 int rc = SLI_CONFIG_NOT_HANDLED;
4193 /* state change on new multi-buffer pass-through mailbox command */
4194 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST;
4196 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
4198 if (!bsg_bf_get(lpfc_mbox_hdr_emb,
4199 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
4200 subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys,
4201 &sli_cfg_mbx->un.sli_config_emb0_subsys);
4202 opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode,
4203 &sli_cfg_mbx->un.sli_config_emb0_subsys);
4204 if (subsys == SLI_CONFIG_SUBSYS_FCOE) {
4206 case FCOE_OPCODE_READ_FCF:
4207 case FCOE_OPCODE_GET_DPORT_RESULTS:
4208 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4209 "2957 Handled SLI_CONFIG "
4210 "subsys_fcoe, opcode:x%x\n",
4212 rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
4215 case FCOE_OPCODE_ADD_FCF:
4216 case FCOE_OPCODE_SET_DPORT_MODE:
4217 case LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE:
4218 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4219 "2958 Handled SLI_CONFIG "
4220 "subsys_fcoe, opcode:x%x\n",
4222 rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
4226 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4227 "2959 Reject SLI_CONFIG "
4228 "subsys_fcoe, opcode:x%x\n",
4233 } else if (subsys == SLI_CONFIG_SUBSYS_COMN) {
4235 case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES:
4236 case COMN_OPCODE_GET_CNTL_ATTRIBUTES:
4237 case COMN_OPCODE_GET_PROFILE_CONFIG:
4238 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4239 "3106 Handled SLI_CONFIG "
4240 "subsys_comn, opcode:x%x\n",
4242 rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
4246 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4247 "3107 Reject SLI_CONFIG "
4248 "subsys_comn, opcode:x%x\n",
4254 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4255 "2977 Reject SLI_CONFIG "
4256 "subsys:x%d, opcode:x%x\n",
4261 subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys,
4262 &sli_cfg_mbx->un.sli_config_emb1_subsys);
4263 opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode,
4264 &sli_cfg_mbx->un.sli_config_emb1_subsys);
4265 if (subsys == SLI_CONFIG_SUBSYS_COMN) {
4267 case COMN_OPCODE_READ_OBJECT:
4268 case COMN_OPCODE_READ_OBJECT_LIST:
4269 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4270 "2960 Handled SLI_CONFIG "
4271 "subsys_comn, opcode:x%x\n",
4273 rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
4276 case COMN_OPCODE_WRITE_OBJECT:
4277 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4278 "2961 Handled SLI_CONFIG "
4279 "subsys_comn, opcode:x%x\n",
4281 rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
4285 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4286 "2962 Not handled SLI_CONFIG "
4287 "subsys_comn, opcode:x%x\n",
4289 rc = SLI_CONFIG_NOT_HANDLED;
4293 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4294 "2978 Not handled SLI_CONFIG "
4295 "subsys:x%d, opcode:x%x\n",
4297 rc = SLI_CONFIG_NOT_HANDLED;
4301 /* state reset on not handled new multi-buffer mailbox command */
4302 if (rc != SLI_CONFIG_HANDLED)
4303 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
4309 * lpfc_bsg_mbox_ext_abort_req - request to abort mbox command with ext buffers
4310 * @phba: Pointer to HBA context object.
4312 * This routine is for requesting to abort a pass-through mailbox command with
4313 * multiple external buffers due to error condition.
4316 lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba)
4318 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
4319 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
4321 lpfc_bsg_mbox_ext_session_reset(phba);
4326 * lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer
4327 * @phba: Pointer to HBA context object.
4328 * @dmabuf: Pointer to a DMA buffer descriptor.
4330 * This routine extracts the next mailbox read external buffer back to
4331 * user space through BSG.
4334 lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct bsg_job *job)
4336 struct fc_bsg_reply *bsg_reply = job->reply;
4337 struct lpfc_sli_config_mbox *sli_cfg_mbx;
4338 struct lpfc_dmabuf *dmabuf;
4343 index = phba->mbox_ext_buf_ctx.seqNum;
4344 phba->mbox_ext_buf_ctx.seqNum++;
4346 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)
4347 phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
4349 if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
4350 size = bsg_bf_get(lpfc_mbox_sli_config_mse_len,
4351 &sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]);
4352 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4353 "2963 SLI_CONFIG (mse) ext-buffer rd get "
4354 "buffer[%d], size:%d\n", index, size);
4356 size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
4357 &sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]);
4358 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4359 "2964 SLI_CONFIG (hbd) ext-buffer rd get "
4360 "buffer[%d], size:%d\n", index, size);
4362 if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list))
4364 dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list,
4365 struct lpfc_dmabuf, list);
4366 list_del_init(&dmabuf->list);
4368 /* after dma buffer descriptor setup */
4369 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
4370 mbox_rd, dma_ebuf, sta_pos_addr,
4373 pbuf = (uint8_t *)dmabuf->virt;
4374 bsg_reply->reply_payload_rcv_len =
4375 sg_copy_from_buffer(job->reply_payload.sg_list,
4376 job->reply_payload.sg_cnt,
4379 lpfc_bsg_dma_page_free(phba, dmabuf);
4381 if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
4382 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4383 "2965 SLI_CONFIG (hbd) ext-buffer rd mbox "
4384 "command session done\n");
4385 lpfc_bsg_mbox_ext_session_reset(phba);
4388 bsg_reply->result = 0;
4389 bsg_job_done(job, bsg_reply->result,
4390 bsg_reply->reply_payload_rcv_len);
4392 return SLI_CONFIG_HANDLED;
4396 * lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer
4397 * @phba: Pointer to HBA context object.
4398 * @dmabuf: Pointer to a DMA buffer descriptor.
4400 * This routine sets up the next mailbox read external buffer obtained
4401 * from user space through BSG.
4404 lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct bsg_job *job,
4405 struct lpfc_dmabuf *dmabuf)
4407 struct fc_bsg_reply *bsg_reply = job->reply;
4408 struct bsg_job_data *dd_data = NULL;
4409 LPFC_MBOXQ_t *pmboxq = NULL;
4411 enum nemb_type nemb_tp;
4417 index = phba->mbox_ext_buf_ctx.seqNum;
4418 phba->mbox_ext_buf_ctx.seqNum++;
4419 nemb_tp = phba->mbox_ext_buf_ctx.nembType;
4421 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
4427 pbuf = (uint8_t *)dmabuf->virt;
4428 size = job->request_payload.payload_len;
4429 sg_copy_to_buffer(job->request_payload.sg_list,
4430 job->request_payload.sg_cnt,
4433 if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
4434 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4435 "2966 SLI_CONFIG (mse) ext-buffer wr set "
4436 "buffer[%d], size:%d\n",
4437 phba->mbox_ext_buf_ctx.seqNum, size);
4440 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4441 "2967 SLI_CONFIG (hbd) ext-buffer wr set "
4442 "buffer[%d], size:%d\n",
4443 phba->mbox_ext_buf_ctx.seqNum, size);
4447 /* set up external buffer descriptor and add to external buffer list */
4448 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index,
4449 phba->mbox_ext_buf_ctx.mbx_dmabuf,
4451 list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4453 /* after write dma buffer */
4454 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
4455 mbox_wr, dma_ebuf, sta_pos_addr,
4458 if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
4459 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4460 "2968 SLI_CONFIG ext-buffer wr all %d "
4461 "ebuffers received\n",
4462 phba->mbox_ext_buf_ctx.numBuf);
4463 /* mailbox command structure for base driver */
4464 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4469 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4470 pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
4471 pmb = &pmboxq->u.mb;
4472 memcpy(pmb, pbuf, sizeof(*pmb));
4473 pmb->mbxOwner = OWN_HOST;
4474 pmboxq->vport = phba->pport;
4476 /* callback for multi-buffer write mailbox command */
4477 pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
4479 /* context fields to callback function */
4480 pmboxq->context1 = dd_data;
4481 dd_data->type = TYPE_MBOX;
4482 dd_data->set_job = job;
4483 dd_data->context_un.mbox.pmboxq = pmboxq;
4484 dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf;
4485 job->dd_data = dd_data;
4488 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
4490 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4491 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
4492 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4493 "2969 Issued SLI_CONFIG ext-buffer "
4494 "maibox command, rc:x%x\n", rc);
4495 return SLI_CONFIG_HANDLED;
4497 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4498 "2970 Failed to issue SLI_CONFIG ext-buffer "
4499 "maibox command, rc:x%x\n", rc);
4504 /* wait for additoinal external buffers */
4505 bsg_reply->result = 0;
4506 bsg_job_done(job, bsg_reply->result,
4507 bsg_reply->reply_payload_rcv_len);
4508 return SLI_CONFIG_HANDLED;
4511 lpfc_bsg_dma_page_free(phba, dmabuf);
4518 * lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd
4519 * @phba: Pointer to HBA context object.
4520 * @mb: Pointer to a BSG mailbox object.
4521 * @dmabuff: Pointer to a DMA buffer descriptor.
4523 * This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox
4524 * command with multiple non-embedded external buffers.
4527 lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct bsg_job *job,
4528 struct lpfc_dmabuf *dmabuf)
4532 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4533 "2971 SLI_CONFIG buffer (type:x%x)\n",
4534 phba->mbox_ext_buf_ctx.mboxType);
4536 if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) {
4537 if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) {
4538 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4539 "2972 SLI_CONFIG rd buffer state "
4541 phba->mbox_ext_buf_ctx.state);
4542 lpfc_bsg_mbox_ext_abort(phba);
4545 rc = lpfc_bsg_read_ebuf_get(phba, job);
4546 if (rc == SLI_CONFIG_HANDLED)
4547 lpfc_bsg_dma_page_free(phba, dmabuf);
4548 } else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */
4549 if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) {
4550 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4551 "2973 SLI_CONFIG wr buffer state "
4553 phba->mbox_ext_buf_ctx.state);
4554 lpfc_bsg_mbox_ext_abort(phba);
4557 rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf);
4563 * lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer
4564 * @phba: Pointer to HBA context object.
4565 * @mb: Pointer to a BSG mailbox object.
4566 * @dmabuff: Pointer to a DMA buffer descriptor.
4568 * This routine checkes and handles non-embedded multi-buffer SLI_CONFIG
4569 * (0x9B) mailbox commands and external buffers.
4572 lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct bsg_job *job,
4573 struct lpfc_dmabuf *dmabuf)
4575 struct fc_bsg_request *bsg_request = job->request;
4576 struct dfc_mbox_req *mbox_req;
4577 int rc = SLI_CONFIG_NOT_HANDLED;
4580 (struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
4582 /* mbox command with/without single external buffer */
4583 if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0)
4586 /* mbox command and first external buffer */
4587 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) {
4588 if (mbox_req->extSeqNum == 1) {
4589 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4590 "2974 SLI_CONFIG mailbox: tag:%d, "
4591 "seq:%d\n", mbox_req->extMboxTag,
4592 mbox_req->extSeqNum);
4593 rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf);
4596 goto sli_cfg_ext_error;
4600 * handle additional external buffers
4603 /* check broken pipe conditions */
4604 if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag)
4605 goto sli_cfg_ext_error;
4606 if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf)
4607 goto sli_cfg_ext_error;
4608 if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1)
4609 goto sli_cfg_ext_error;
4611 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4612 "2975 SLI_CONFIG mailbox external buffer: "
4613 "extSta:x%x, tag:%d, seq:%d\n",
4614 phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag,
4615 mbox_req->extSeqNum);
4616 rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf);
4620 /* all other cases, broken pipe */
4621 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4622 "2976 SLI_CONFIG mailbox broken pipe: "
4623 "ctxSta:x%x, ctxNumBuf:%d "
4624 "ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n",
4625 phba->mbox_ext_buf_ctx.state,
4626 phba->mbox_ext_buf_ctx.numBuf,
4627 phba->mbox_ext_buf_ctx.mbxTag,
4628 phba->mbox_ext_buf_ctx.seqNum,
4629 mbox_req->extMboxTag, mbox_req->extSeqNum);
4631 lpfc_bsg_mbox_ext_session_reset(phba);
4637 * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app
4638 * @phba: Pointer to HBA context object.
4639 * @mb: Pointer to a mailbox object.
4640 * @vport: Pointer to a vport object.
4642 * Allocate a tracking object, mailbox command memory, get a mailbox
4643 * from the mailbox pool, copy the caller mailbox command.
4645 * If offline and the sli is active we need to poll for the command (port is
4646 * being reset) and com-plete the job, otherwise issue the mailbox command and
4647 * let our completion handler finish the command.
4650 lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct bsg_job *job,
4651 struct lpfc_vport *vport)
4653 struct fc_bsg_request *bsg_request = job->request;
4654 struct fc_bsg_reply *bsg_reply = job->reply;
4655 LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */
4656 MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */
4657 /* a 4k buffer to hold the mb and extended data from/to the bsg */
4658 uint8_t *pmbx = NULL;
4659 struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */
4660 struct lpfc_dmabuf *dmabuf = NULL;
4661 struct dfc_mbox_req *mbox_req;
4662 struct READ_EVENT_LOG_VAR *rdEventLog;
4663 uint32_t transmit_length, receive_length, mode;
4664 struct lpfc_mbx_sli4_config *sli4_config;
4665 struct lpfc_mbx_nembed_cmd *nembed_sge;
4666 struct ulp_bde64 *bde;
4667 uint8_t *ext = NULL;
4672 /* in case no data is transferred */
4673 bsg_reply->reply_payload_rcv_len = 0;
4675 /* sanity check to protect driver */
4676 if (job->reply_payload.payload_len > BSG_MBOX_SIZE ||
4677 job->request_payload.payload_len > BSG_MBOX_SIZE) {
4683 * Don't allow mailbox commands to be sent when blocked or when in
4684 * the middle of discovery
4686 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
4692 (struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
4694 /* check if requested extended data lengths are valid */
4695 if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) ||
4696 (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) {
4701 dmabuf = lpfc_bsg_dma_page_alloc(phba);
4702 if (!dmabuf || !dmabuf->virt) {
4707 /* Get the mailbox command or external buffer from BSG */
4708 pmbx = (uint8_t *)dmabuf->virt;
4709 size = job->request_payload.payload_len;
4710 sg_copy_to_buffer(job->request_payload.sg_list,
4711 job->request_payload.sg_cnt, pmbx, size);
4713 /* Handle possible SLI_CONFIG with non-embedded payloads */
4714 if (phba->sli_rev == LPFC_SLI_REV4) {
4715 rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf);
4716 if (rc == SLI_CONFIG_HANDLED)
4720 /* SLI_CONFIG_NOT_HANDLED for other mailbox commands */
4723 rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport);
4725 goto job_done; /* must be negative */
4727 /* allocate our bsg tracking structure */
4728 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
4730 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
4731 "2727 Failed allocation of dd_data\n");
4736 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4741 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4743 pmb = &pmboxq->u.mb;
4744 memcpy(pmb, pmbx, sizeof(*pmb));
4745 pmb->mbxOwner = OWN_HOST;
4746 pmboxq->vport = vport;
4748 /* If HBA encountered an error attention, allow only DUMP
4749 * or RESTART mailbox commands until the HBA is restarted.
4751 if (phba->pport->stopped &&
4752 pmb->mbxCommand != MBX_DUMP_MEMORY &&
4753 pmb->mbxCommand != MBX_RESTART &&
4754 pmb->mbxCommand != MBX_WRITE_VPARMS &&
4755 pmb->mbxCommand != MBX_WRITE_WWN)
4756 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
4757 "2797 mbox: Issued mailbox cmd "
4758 "0x%x while in stopped state.\n",
4761 /* extended mailbox commands will need an extended buffer */
4762 if (mbox_req->inExtWLen || mbox_req->outExtWLen) {
4764 ext = from + sizeof(MAILBOX_t);
4765 pmboxq->context2 = ext;
4766 pmboxq->in_ext_byte_len =
4767 mbox_req->inExtWLen * sizeof(uint32_t);
4768 pmboxq->out_ext_byte_len =
4769 mbox_req->outExtWLen * sizeof(uint32_t);
4770 pmboxq->mbox_offset_word = mbox_req->mbOffset;
4773 /* biu diag will need a kernel buffer to transfer the data
4774 * allocate our own buffer and setup the mailbox command to
4777 if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) {
4778 transmit_length = pmb->un.varWords[1];
4779 receive_length = pmb->un.varWords[4];
4780 /* transmit length cannot be greater than receive length or
4781 * mailbox extension size
4783 if ((transmit_length > receive_length) ||
4784 (transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
4788 pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh =
4789 putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t));
4790 pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow =
4791 putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t));
4793 pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh =
4794 putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)
4795 + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
4796 pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow =
4797 putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)
4798 + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
4799 } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) {
4800 rdEventLog = &pmb->un.varRdEventLog;
4801 receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize;
4802 mode = bf_get(lpfc_event_log, rdEventLog);
4804 /* receive length cannot be greater than mailbox
4807 if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
4812 /* mode zero uses a bde like biu diags command */
4814 pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
4815 + sizeof(MAILBOX_t));
4816 pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
4817 + sizeof(MAILBOX_t));
4819 } else if (phba->sli_rev == LPFC_SLI_REV4) {
4820 /* Let type 4 (well known data) through because the data is
4821 * returned in varwords[4-8]
4822 * otherwise check the recieve length and fetch the buffer addr
4824 if ((pmb->mbxCommand == MBX_DUMP_MEMORY) &&
4825 (pmb->un.varDmp.type != DMP_WELL_KNOWN)) {
4826 /* rebuild the command for sli4 using our own buffers
4827 * like we do for biu diags
4829 receive_length = pmb->un.varWords[2];
4830 /* receive length cannot be greater than mailbox
4833 if (receive_length == 0) {
4837 pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
4838 + sizeof(MAILBOX_t));
4839 pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
4840 + sizeof(MAILBOX_t));
4841 } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) &&
4842 pmb->un.varUpdateCfg.co) {
4843 bde = (struct ulp_bde64 *)&pmb->un.varWords[4];
4845 /* bde size cannot be greater than mailbox ext size */
4846 if (bde->tus.f.bdeSize >
4847 BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
4851 bde->addrHigh = putPaddrHigh(dmabuf->phys
4852 + sizeof(MAILBOX_t));
4853 bde->addrLow = putPaddrLow(dmabuf->phys
4854 + sizeof(MAILBOX_t));
4855 } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) {
4856 /* Handling non-embedded SLI_CONFIG mailbox command */
4857 sli4_config = &pmboxq->u.mqe.un.sli4_config;
4858 if (!bf_get(lpfc_mbox_hdr_emb,
4859 &sli4_config->header.cfg_mhdr)) {
4860 /* rebuild the command for sli4 using our
4861 * own buffers like we do for biu diags
4863 nembed_sge = (struct lpfc_mbx_nembed_cmd *)
4864 &pmb->un.varWords[0];
4865 receive_length = nembed_sge->sge[0].length;
4867 /* receive length cannot be greater than
4868 * mailbox extension size
4870 if ((receive_length == 0) ||
4872 BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
4877 nembed_sge->sge[0].pa_hi =
4878 putPaddrHigh(dmabuf->phys
4879 + sizeof(MAILBOX_t));
4880 nembed_sge->sge[0].pa_lo =
4881 putPaddrLow(dmabuf->phys
4882 + sizeof(MAILBOX_t));
4887 dd_data->context_un.mbox.dmabuffers = dmabuf;
4889 /* setup wake call as IOCB callback */
4890 pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl;
4892 /* setup context field to pass wait_queue pointer to wake function */
4893 pmboxq->context1 = dd_data;
4894 dd_data->type = TYPE_MBOX;
4895 dd_data->set_job = job;
4896 dd_data->context_un.mbox.pmboxq = pmboxq;
4897 dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
4898 dd_data->context_un.mbox.ext = ext;
4899 dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset;
4900 dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen;
4901 dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen;
4902 job->dd_data = dd_data;
4904 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4905 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
4906 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4907 if (rc != MBX_SUCCESS) {
4908 rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
4912 /* job finished, copy the data */
4913 memcpy(pmbx, pmb, sizeof(*pmb));
4914 bsg_reply->reply_payload_rcv_len =
4915 sg_copy_from_buffer(job->reply_payload.sg_list,
4916 job->reply_payload.sg_cnt,
4918 /* not waiting mbox already done */
4923 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4924 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY))
4925 return 1; /* job started */
4928 /* common exit for error or job completed inline */
4930 mempool_free(pmboxq, phba->mbox_mem_pool);
4931 lpfc_bsg_dma_page_free(phba, dmabuf);
4939 * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command
4940 * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX.
4943 lpfc_bsg_mbox_cmd(struct bsg_job *job)
4945 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
4946 struct fc_bsg_request *bsg_request = job->request;
4947 struct fc_bsg_reply *bsg_reply = job->reply;
4948 struct lpfc_hba *phba = vport->phba;
4949 struct dfc_mbox_req *mbox_req;
4952 /* mix-and-match backward compatibility */
4953 bsg_reply->reply_payload_rcv_len = 0;
4954 if (job->request_len <
4955 sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) {
4956 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4957 "2737 Mix-and-match backward compatibility "
4958 "between MBOX_REQ old size:%d and "
4959 "new request size:%d\n",
4960 (int)(job->request_len -
4961 sizeof(struct fc_bsg_request)),
4962 (int)sizeof(struct dfc_mbox_req));
4963 mbox_req = (struct dfc_mbox_req *)
4964 bsg_request->rqst_data.h_vendor.vendor_cmd;
4965 mbox_req->extMboxTag = 0;
4966 mbox_req->extSeqNum = 0;
4969 rc = lpfc_bsg_issue_mbox(phba, job, vport);
4973 bsg_reply->result = 0;
4974 job->dd_data = NULL;
4975 bsg_job_done(job, bsg_reply->result,
4976 bsg_reply->reply_payload_rcv_len);
4978 /* job submitted, will complete later*/
4979 rc = 0; /* return zero, no error */
4981 /* some error occurred */
4982 bsg_reply->result = rc;
4983 job->dd_data = NULL;
4990 * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler
4991 * @phba: Pointer to HBA context object.
4992 * @cmdiocbq: Pointer to command iocb.
4993 * @rspiocbq: Pointer to response iocb.
4995 * This function is the completion handler for iocbs issued using
4996 * lpfc_menlo_cmd function. This function is called by the
4997 * ring event handler function without any lock held. This function
4998 * can be called from both worker thread context and interrupt
4999 * context. This function also can be called from another thread which
5000 * cleans up the SLI layer objects.
5001 * This function copies the contents of the response iocb to the
5002 * response iocb memory object provided by the caller of
5003 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
5004 * sleeps for the iocb completion.
5007 lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba,
5008 struct lpfc_iocbq *cmdiocbq,
5009 struct lpfc_iocbq *rspiocbq)
5011 struct bsg_job_data *dd_data;
5012 struct bsg_job *job;
5013 struct fc_bsg_reply *bsg_reply;
5015 struct lpfc_dmabuf *bmp, *cmp, *rmp;
5016 struct lpfc_bsg_menlo *menlo;
5017 unsigned long flags;
5018 struct menlo_response *menlo_resp;
5019 unsigned int rsp_size;
5022 dd_data = cmdiocbq->context1;
5023 cmp = cmdiocbq->context2;
5024 bmp = cmdiocbq->context3;
5025 menlo = &dd_data->context_un.menlo;
5027 rsp = &rspiocbq->iocb;
5029 /* Determine if job has been aborted */
5030 spin_lock_irqsave(&phba->ct_ev_lock, flags);
5031 job = dd_data->set_job;
5033 bsg_reply = job->reply;
5034 /* Prevent timeout handling from trying to abort job */
5035 job->dd_data = NULL;
5037 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5039 /* Copy the job data or set the failing status for the job */
5042 /* always return the xri, this would be used in the case
5043 * of a menlo download to allow the data to be sent as a
5044 * continuation of the exchange.
5047 menlo_resp = (struct menlo_response *)
5048 bsg_reply->reply_data.vendor_reply.vendor_rsp;
5049 menlo_resp->xri = rsp->ulpContext;
5050 if (rsp->ulpStatus) {
5051 if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
5052 switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
5053 case IOERR_SEQUENCE_TIMEOUT:
5056 case IOERR_INVALID_RPI:
5067 rsp_size = rsp->un.genreq64.bdl.bdeSize;
5068 bsg_reply->reply_payload_rcv_len =
5069 lpfc_bsg_copy_data(rmp, &job->reply_payload,
5075 lpfc_sli_release_iocbq(phba, cmdiocbq);
5076 lpfc_free_bsg_buffers(phba, cmp);
5077 lpfc_free_bsg_buffers(phba, rmp);
5078 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
5082 /* Complete the job if active */
5085 bsg_reply->result = rc;
5086 bsg_job_done(job, bsg_reply->result,
5087 bsg_reply->reply_payload_rcv_len);
5094 * lpfc_menlo_cmd - send an ioctl for menlo hardware
5095 * @job: fc_bsg_job to handle
5097 * This function issues a gen request 64 CR ioctl for all menlo cmd requests,
5098 * all the command completions will return the xri for the command.
5099 * For menlo data requests a gen request 64 CX is used to continue the exchange
5100 * supplied in the menlo request header xri field.
5103 lpfc_menlo_cmd(struct bsg_job *job)
5105 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
5106 struct fc_bsg_request *bsg_request = job->request;
5107 struct fc_bsg_reply *bsg_reply = job->reply;
5108 struct lpfc_hba *phba = vport->phba;
5109 struct lpfc_iocbq *cmdiocbq;
5112 struct menlo_command *menlo_cmd;
5113 struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
5116 struct bsg_job_data *dd_data;
5117 struct ulp_bde64 *bpl = NULL;
5119 /* in case no data is returned return just the return code */
5120 bsg_reply->reply_payload_rcv_len = 0;
5122 if (job->request_len <
5123 sizeof(struct fc_bsg_request) +
5124 sizeof(struct menlo_command)) {
5125 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5126 "2784 Received MENLO_CMD request below "
5132 if (job->reply_len <
5133 sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) {
5134 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5135 "2785 Received MENLO_CMD reply below "
5141 if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) {
5142 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5143 "2786 Adapter does not support menlo "
5149 menlo_cmd = (struct menlo_command *)
5150 bsg_request->rqst_data.h_vendor.vendor_cmd;
5152 /* allocate our bsg tracking structure */
5153 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
5155 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5156 "2787 Failed allocation of dd_data\n");
5161 bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5167 bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
5173 INIT_LIST_HEAD(&bmp->list);
5175 bpl = (struct ulp_bde64 *)bmp->virt;
5176 request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
5177 cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
5178 1, bpl, &request_nseg);
5183 lpfc_bsg_copy_data(cmp, &job->request_payload,
5184 job->request_payload.payload_len, 1);
5186 bpl += request_nseg;
5187 reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
5188 rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
5195 cmdiocbq = lpfc_sli_get_iocbq(phba);
5201 cmd = &cmdiocbq->iocb;
5202 cmd->un.genreq64.bdl.ulpIoTag32 = 0;
5203 cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
5204 cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
5205 cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
5206 cmd->un.genreq64.bdl.bdeSize =
5207 (request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
5208 cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
5209 cmd->un.genreq64.w5.hcsw.Dfctl = 0;
5210 cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD;
5211 cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */
5212 cmd->ulpBdeCount = 1;
5213 cmd->ulpClass = CLASS3;
5214 cmd->ulpOwner = OWN_CHIP;
5215 cmd->ulpLe = 1; /* Limited Edition */
5216 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
5217 cmdiocbq->vport = phba->pport;
5218 /* We want the firmware to timeout before we do */
5219 cmd->ulpTimeout = MENLO_TIMEOUT - 5;
5220 cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp;
5221 cmdiocbq->context1 = dd_data;
5222 cmdiocbq->context2 = cmp;
5223 cmdiocbq->context3 = bmp;
5224 if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) {
5225 cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
5226 cmd->ulpPU = MENLO_PU; /* 3 */
5227 cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */
5228 cmd->ulpContext = MENLO_CONTEXT; /* 0 */
5230 cmd->ulpCommand = CMD_GEN_REQUEST64_CX;
5232 cmd->un.ulpWord[4] = 0;
5233 cmd->ulpContext = menlo_cmd->xri;
5236 dd_data->type = TYPE_MENLO;
5237 dd_data->set_job = job;
5238 dd_data->context_un.menlo.cmdiocbq = cmdiocbq;
5239 dd_data->context_un.menlo.rmp = rmp;
5240 job->dd_data = dd_data;
5242 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
5244 if (rc == IOCB_SUCCESS)
5245 return 0; /* done for now */
5247 lpfc_sli_release_iocbq(phba, cmdiocbq);
5250 lpfc_free_bsg_buffers(phba, rmp);
5252 lpfc_free_bsg_buffers(phba, cmp);
5255 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
5260 /* make error code available to userspace */
5261 bsg_reply->result = rc;
5262 job->dd_data = NULL;
5267 lpfc_forced_link_speed(struct bsg_job *job)
5269 struct Scsi_Host *shost = fc_bsg_to_shost(job);
5270 struct lpfc_vport *vport = shost_priv(shost);
5271 struct lpfc_hba *phba = vport->phba;
5272 struct fc_bsg_reply *bsg_reply = job->reply;
5273 struct forced_link_speed_support_reply *forced_reply;
5276 if (job->request_len <
5277 sizeof(struct fc_bsg_request) +
5278 sizeof(struct get_forced_link_speed_support)) {
5279 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5280 "0048 Received FORCED_LINK_SPEED request "
5281 "below minimum size\n");
5286 forced_reply = (struct forced_link_speed_support_reply *)
5287 bsg_reply->reply_data.vendor_reply.vendor_rsp;
5289 if (job->reply_len <
5290 sizeof(struct fc_bsg_request) +
5291 sizeof(struct forced_link_speed_support_reply)) {
5292 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5293 "0049 Received FORCED_LINK_SPEED reply below "
5299 forced_reply->supported = (phba->hba_flag & HBA_FORCED_LINK_SPEED)
5300 ? LPFC_FORCED_LINK_SPEED_SUPPORTED
5301 : LPFC_FORCED_LINK_SPEED_NOT_SUPPORTED;
5303 bsg_reply->result = rc;
5305 bsg_job_done(job, bsg_reply->result,
5306 bsg_reply->reply_payload_rcv_len);
5311 * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job
5312 * @job: fc_bsg_job to handle
5315 lpfc_bsg_hst_vendor(struct bsg_job *job)
5317 struct fc_bsg_request *bsg_request = job->request;
5318 struct fc_bsg_reply *bsg_reply = job->reply;
5319 int command = bsg_request->rqst_data.h_vendor.vendor_cmd[0];
5323 case LPFC_BSG_VENDOR_SET_CT_EVENT:
5324 rc = lpfc_bsg_hba_set_event(job);
5326 case LPFC_BSG_VENDOR_GET_CT_EVENT:
5327 rc = lpfc_bsg_hba_get_event(job);
5329 case LPFC_BSG_VENDOR_SEND_MGMT_RESP:
5330 rc = lpfc_bsg_send_mgmt_rsp(job);
5332 case LPFC_BSG_VENDOR_DIAG_MODE:
5333 rc = lpfc_bsg_diag_loopback_mode(job);
5335 case LPFC_BSG_VENDOR_DIAG_MODE_END:
5336 rc = lpfc_sli4_bsg_diag_mode_end(job);
5338 case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK:
5339 rc = lpfc_bsg_diag_loopback_run(job);
5341 case LPFC_BSG_VENDOR_LINK_DIAG_TEST:
5342 rc = lpfc_sli4_bsg_link_diag_test(job);
5344 case LPFC_BSG_VENDOR_GET_MGMT_REV:
5345 rc = lpfc_bsg_get_dfc_rev(job);
5347 case LPFC_BSG_VENDOR_MBOX:
5348 rc = lpfc_bsg_mbox_cmd(job);
5350 case LPFC_BSG_VENDOR_MENLO_CMD:
5351 case LPFC_BSG_VENDOR_MENLO_DATA:
5352 rc = lpfc_menlo_cmd(job);
5354 case LPFC_BSG_VENDOR_FORCED_LINK_SPEED:
5355 rc = lpfc_forced_link_speed(job);
5359 bsg_reply->reply_payload_rcv_len = 0;
5360 /* make error code available to userspace */
5361 bsg_reply->result = rc;
5369 * lpfc_bsg_request - handle a bsg request from the FC transport
5370 * @job: fc_bsg_job to handle
5373 lpfc_bsg_request(struct bsg_job *job)
5375 struct fc_bsg_request *bsg_request = job->request;
5376 struct fc_bsg_reply *bsg_reply = job->reply;
5380 msgcode = bsg_request->msgcode;
5382 case FC_BSG_HST_VENDOR:
5383 rc = lpfc_bsg_hst_vendor(job);
5385 case FC_BSG_RPT_ELS:
5386 rc = lpfc_bsg_rport_els(job);
5389 rc = lpfc_bsg_send_mgmt_cmd(job);
5393 bsg_reply->reply_payload_rcv_len = 0;
5394 /* make error code available to userspace */
5395 bsg_reply->result = rc;
5403 * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport
5404 * @job: fc_bsg_job that has timed out
5406 * This function just aborts the job's IOCB. The aborted IOCB will return to
5407 * the waiting function which will handle passing the error back to userspace
5410 lpfc_bsg_timeout(struct bsg_job *job)
5412 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
5413 struct lpfc_hba *phba = vport->phba;
5414 struct lpfc_iocbq *cmdiocb;
5415 struct lpfc_sli_ring *pring;
5416 struct bsg_job_data *dd_data;
5417 unsigned long flags;
5419 LIST_HEAD(completions);
5420 struct lpfc_iocbq *check_iocb, *next_iocb;
5422 pring = lpfc_phba_elsring(phba);
5424 /* if job's driver data is NULL, the command completed or is in the
5425 * the process of completing. In this case, return status to request
5426 * so the timeout is retried. This avoids double completion issues
5427 * and the request will be pulled off the timer queue when the
5428 * command's completion handler executes. Otherwise, prevent the
5429 * command's completion handler from executing the job done callback
5430 * and continue processing to abort the outstanding the command.
5433 spin_lock_irqsave(&phba->ct_ev_lock, flags);
5434 dd_data = (struct bsg_job_data *)job->dd_data;
5436 dd_data->set_job = NULL;
5437 job->dd_data = NULL;
5439 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5443 switch (dd_data->type) {
5445 /* Check to see if IOCB was issued to the port or not. If not,
5446 * remove it from the txq queue and call cancel iocbs.
5447 * Otherwise, call abort iotag
5449 cmdiocb = dd_data->context_un.iocb.cmdiocbq;
5450 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5452 spin_lock_irqsave(&phba->hbalock, flags);
5453 /* make sure the I/O abort window is still open */
5454 if (!(cmdiocb->iocb_flag & LPFC_IO_CMD_OUTSTANDING)) {
5455 spin_unlock_irqrestore(&phba->hbalock, flags);
5458 list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
5460 if (check_iocb == cmdiocb) {
5461 list_move_tail(&check_iocb->list, &completions);
5465 if (list_empty(&completions))
5466 lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
5467 spin_unlock_irqrestore(&phba->hbalock, flags);
5468 if (!list_empty(&completions)) {
5469 lpfc_sli_cancel_iocbs(phba, &completions,
5470 IOSTAT_LOCAL_REJECT,
5476 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5480 /* Update the ext buf ctx state if needed */
5482 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
5483 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
5484 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5487 /* Check to see if IOCB was issued to the port or not. If not,
5488 * remove it from the txq queue and call cancel iocbs.
5489 * Otherwise, call abort iotag.
5491 cmdiocb = dd_data->context_un.menlo.cmdiocbq;
5492 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5494 spin_lock_irqsave(&phba->hbalock, flags);
5495 list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
5497 if (check_iocb == cmdiocb) {
5498 list_move_tail(&check_iocb->list, &completions);
5502 if (list_empty(&completions))
5503 lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
5504 spin_unlock_irqrestore(&phba->hbalock, flags);
5505 if (!list_empty(&completions)) {
5506 lpfc_sli_cancel_iocbs(phba, &completions,
5507 IOSTAT_LOCAL_REJECT,
5512 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5516 /* scsi transport fc fc_bsg_job_timeout expects a zero return code,
5517 * otherwise an error message will be displayed on the console
5518 * so always return success (zero)