1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 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>
30 #include <linux/vmalloc.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_host.h>
34 #include <scsi/scsi_transport_fc.h>
35 #include <scsi/scsi_bsg_fc.h>
36 #include <scsi/fc/fc_fs.h>
41 #include "lpfc_sli4.h"
44 #include "lpfc_disc.h"
45 #include "lpfc_scsi.h"
47 #include "lpfc_logmsg.h"
48 #include "lpfc_crtn.h"
49 #include "lpfc_debugfs.h"
50 #include "lpfc_vport.h"
51 #include "lpfc_version.h"
53 struct lpfc_bsg_event {
54 struct list_head node;
58 /* Event type and waiter identifiers */
63 /* next two flags are here for the auto-delete logic */
64 unsigned long wait_time_stamp;
67 /* seen and not seen events */
68 struct list_head events_to_get;
69 struct list_head events_to_see;
71 /* driver data associated with the job */
75 struct lpfc_bsg_iocb {
76 struct lpfc_iocbq *cmdiocbq;
77 struct lpfc_dmabuf *rmp;
78 struct lpfc_nodelist *ndlp;
81 struct lpfc_bsg_mbox {
84 struct lpfc_dmabuf *dmabuffers; /* for BIU diags */
85 uint8_t *ext; /* extended mailbox data */
86 uint32_t mbOffset; /* from app */
87 uint32_t inExtWLen; /* from app */
88 uint32_t outExtWLen; /* from app */
91 #define MENLO_DID 0x0000FC0E
93 struct lpfc_bsg_menlo {
94 struct lpfc_iocbq *cmdiocbq;
95 struct lpfc_dmabuf *rmp;
102 struct bsg_job_data {
104 struct bsg_job *set_job; /* job waiting for this iocb to finish */
106 struct lpfc_bsg_event *evt;
107 struct lpfc_bsg_iocb iocb;
108 struct lpfc_bsg_mbox mbox;
109 struct lpfc_bsg_menlo menlo;
114 struct list_head node;
121 #define BUF_SZ_4K 4096
122 #define SLI_CT_ELX_LOOPBACK 0x10
124 enum ELX_LOOPBACK_CMD {
125 ELX_LOOPBACK_XRI_SETUP,
129 #define ELX_LOOPBACK_HEADER_SZ \
130 (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un)
132 struct lpfc_dmabufext {
133 struct lpfc_dmabuf dma;
139 lpfc_free_bsg_buffers(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist)
141 struct lpfc_dmabuf *mlast, *next_mlast;
144 list_for_each_entry_safe(mlast, next_mlast, &mlist->list,
146 lpfc_mbuf_free(phba, mlast->virt, mlast->phys);
147 list_del(&mlast->list);
150 lpfc_mbuf_free(phba, mlist->virt, mlist->phys);
156 static struct lpfc_dmabuf *
157 lpfc_alloc_bsg_buffers(struct lpfc_hba *phba, unsigned int size,
158 int outbound_buffers, struct ulp_bde64 *bpl,
161 struct lpfc_dmabuf *mlist = NULL;
162 struct lpfc_dmabuf *mp;
163 unsigned int bytes_left = size;
165 /* Verify we can support the size specified */
166 if (!size || (size > (*bpl_entries * LPFC_BPL_SIZE)))
169 /* Determine the number of dma buffers to allocate */
170 *bpl_entries = (size % LPFC_BPL_SIZE ? size/LPFC_BPL_SIZE + 1 :
173 /* Allocate dma buffer and place in BPL passed */
175 /* Allocate dma buffer */
176 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
179 lpfc_free_bsg_buffers(phba, mlist);
183 INIT_LIST_HEAD(&mp->list);
184 mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
189 lpfc_free_bsg_buffers(phba, mlist);
193 /* Queue it to a linked list */
197 list_add_tail(&mp->list, &mlist->list);
199 /* Add buffer to buffer pointer list */
200 if (outbound_buffers)
201 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
203 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
204 bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys));
205 bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys));
206 bpl->tus.f.bdeSize = (uint16_t)
207 (bytes_left >= LPFC_BPL_SIZE ? LPFC_BPL_SIZE :
209 bytes_left -= bpl->tus.f.bdeSize;
210 bpl->tus.w = le32_to_cpu(bpl->tus.w);
217 lpfc_bsg_copy_data(struct lpfc_dmabuf *dma_buffers,
218 struct bsg_buffer *bsg_buffers,
219 unsigned int bytes_to_transfer, int to_buffers)
222 struct lpfc_dmabuf *mp;
223 unsigned int transfer_bytes, bytes_copied = 0;
224 unsigned int sg_offset, dma_offset;
225 unsigned char *dma_address, *sg_address;
226 LIST_HEAD(temp_list);
227 struct sg_mapping_iter miter;
229 unsigned int sg_flags = SG_MITER_ATOMIC;
232 list_splice_init(&dma_buffers->list, &temp_list);
233 list_add(&dma_buffers->list, &temp_list);
236 sg_flags |= SG_MITER_FROM_SG;
238 sg_flags |= SG_MITER_TO_SG;
239 sg_miter_start(&miter, bsg_buffers->sg_list, bsg_buffers->sg_cnt,
241 local_irq_save(flags);
242 sg_valid = sg_miter_next(&miter);
243 list_for_each_entry(mp, &temp_list, list) {
245 while (bytes_to_transfer && sg_valid &&
246 (dma_offset < LPFC_BPL_SIZE)) {
247 dma_address = mp->virt + dma_offset;
249 /* Continue previous partial transfer of sg */
250 sg_address = miter.addr + sg_offset;
251 transfer_bytes = miter.length - sg_offset;
253 sg_address = miter.addr;
254 transfer_bytes = miter.length;
256 if (bytes_to_transfer < transfer_bytes)
257 transfer_bytes = bytes_to_transfer;
258 if (transfer_bytes > (LPFC_BPL_SIZE - dma_offset))
259 transfer_bytes = LPFC_BPL_SIZE - dma_offset;
261 memcpy(dma_address, sg_address, transfer_bytes);
263 memcpy(sg_address, dma_address, transfer_bytes);
264 dma_offset += transfer_bytes;
265 sg_offset += transfer_bytes;
266 bytes_to_transfer -= transfer_bytes;
267 bytes_copied += transfer_bytes;
268 if (sg_offset >= miter.length) {
270 sg_valid = sg_miter_next(&miter);
274 sg_miter_stop(&miter);
275 local_irq_restore(flags);
276 list_del_init(&dma_buffers->list);
277 list_splice(&temp_list, &dma_buffers->list);
282 * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler
283 * @phba: Pointer to HBA context object.
284 * @cmdiocbq: Pointer to command iocb.
285 * @rspiocbq: Pointer to response iocb.
287 * This function is the completion handler for iocbs issued using
288 * lpfc_bsg_send_mgmt_cmd function. This function is called by the
289 * ring event handler function without any lock held. This function
290 * can be called from both worker thread context and interrupt
291 * context. This function also can be called from another thread which
292 * cleans up the SLI layer objects.
293 * This function copies the contents of the response iocb to the
294 * response iocb memory object provided by the caller of
295 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
296 * sleeps for the iocb completion.
299 lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba,
300 struct lpfc_iocbq *cmdiocbq,
301 struct lpfc_iocbq *rspiocbq)
303 struct bsg_job_data *dd_data;
305 struct fc_bsg_reply *bsg_reply;
307 struct lpfc_dmabuf *bmp, *cmp, *rmp;
308 struct lpfc_nodelist *ndlp;
309 struct lpfc_bsg_iocb *iocb;
311 unsigned int rsp_size;
314 dd_data = cmdiocbq->context1;
316 /* Determine if job has been aborted */
317 spin_lock_irqsave(&phba->ct_ev_lock, flags);
318 job = dd_data->set_job;
320 bsg_reply = job->reply;
321 /* Prevent timeout handling from trying to abort job */
324 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
326 /* Close the timeout handler abort window */
327 spin_lock_irqsave(&phba->hbalock, flags);
328 cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
329 spin_unlock_irqrestore(&phba->hbalock, flags);
331 iocb = &dd_data->context_un.iocb;
334 cmp = cmdiocbq->context2;
335 bmp = cmdiocbq->context3;
336 rsp = &rspiocbq->iocb;
338 /* Copy the completed data or set the error status */
341 if (rsp->ulpStatus) {
342 if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
343 switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
344 case IOERR_SEQUENCE_TIMEOUT:
347 case IOERR_INVALID_RPI:
358 rsp_size = rsp->un.genreq64.bdl.bdeSize;
359 bsg_reply->reply_payload_rcv_len =
360 lpfc_bsg_copy_data(rmp, &job->reply_payload,
365 lpfc_free_bsg_buffers(phba, cmp);
366 lpfc_free_bsg_buffers(phba, rmp);
367 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
369 lpfc_sli_release_iocbq(phba, cmdiocbq);
373 /* Complete the job if the job is still active */
376 bsg_reply->result = rc;
377 bsg_job_done(job, bsg_reply->result,
378 bsg_reply->reply_payload_rcv_len);
384 * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request
385 * @job: fc_bsg_job to handle
388 lpfc_bsg_send_mgmt_cmd(struct bsg_job *job)
390 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
391 struct lpfc_hba *phba = vport->phba;
392 struct lpfc_rport_data *rdata = fc_bsg_to_rport(job)->dd_data;
393 struct lpfc_nodelist *ndlp = rdata->pnode;
394 struct fc_bsg_reply *bsg_reply = job->reply;
395 struct ulp_bde64 *bpl = NULL;
397 struct lpfc_iocbq *cmdiocbq = NULL;
399 struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
402 struct bsg_job_data *dd_data;
408 /* in case no data is transferred */
409 bsg_reply->reply_payload_rcv_len = 0;
411 /* allocate our bsg tracking structure */
412 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
414 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
415 "2733 Failed allocation of dd_data\n");
420 if (!lpfc_nlp_get(ndlp)) {
425 if (ndlp->nlp_flag & NLP_ELS_SND_MASK) {
430 cmdiocbq = lpfc_sli_get_iocbq(phba);
436 cmd = &cmdiocbq->iocb;
438 bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
443 bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
449 INIT_LIST_HEAD(&bmp->list);
451 bpl = (struct ulp_bde64 *) bmp->virt;
452 request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
453 cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
454 1, bpl, &request_nseg);
459 lpfc_bsg_copy_data(cmp, &job->request_payload,
460 job->request_payload.payload_len, 1);
463 reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
464 rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
471 cmd->un.genreq64.bdl.ulpIoTag32 = 0;
472 cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
473 cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
474 cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
475 cmd->un.genreq64.bdl.bdeSize =
476 (request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
477 cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
478 cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
479 cmd->un.genreq64.w5.hcsw.Dfctl = 0;
480 cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
481 cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;
482 cmd->ulpBdeCount = 1;
484 cmd->ulpClass = CLASS3;
485 cmd->ulpContext = ndlp->nlp_rpi;
486 if (phba->sli_rev == LPFC_SLI_REV4)
487 cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
488 cmd->ulpOwner = OWN_CHIP;
489 cmdiocbq->vport = phba->pport;
490 cmdiocbq->context3 = bmp;
491 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
492 timeout = phba->fc_ratov * 2;
493 cmd->ulpTimeout = timeout;
495 cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp;
496 cmdiocbq->context1 = dd_data;
497 cmdiocbq->context2 = cmp;
498 cmdiocbq->context3 = bmp;
499 cmdiocbq->context_un.ndlp = ndlp;
500 dd_data->type = TYPE_IOCB;
501 dd_data->set_job = job;
502 dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
503 dd_data->context_un.iocb.ndlp = ndlp;
504 dd_data->context_un.iocb.rmp = rmp;
505 job->dd_data = dd_data;
507 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
508 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
512 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
513 writel(creg_val, phba->HCregaddr);
514 readl(phba->HCregaddr); /* flush */
517 iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
519 if (iocb_stat == IOCB_SUCCESS) {
520 spin_lock_irqsave(&phba->hbalock, flags);
521 /* make sure the I/O had not been completed yet */
522 if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
523 /* open up abort window to timeout handler */
524 cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
526 spin_unlock_irqrestore(&phba->hbalock, flags);
527 return 0; /* done for now */
528 } else if (iocb_stat == IOCB_BUSY) {
534 /* iocb failed so cleanup */
538 lpfc_free_bsg_buffers(phba, rmp);
540 lpfc_free_bsg_buffers(phba, cmp);
543 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
546 lpfc_sli_release_iocbq(phba, cmdiocbq);
552 /* make error code available to userspace */
553 bsg_reply->result = rc;
559 * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler
560 * @phba: Pointer to HBA context object.
561 * @cmdiocbq: Pointer to command iocb.
562 * @rspiocbq: Pointer to response iocb.
564 * This function is the completion handler for iocbs issued using
565 * lpfc_bsg_rport_els_cmp function. This function is called by the
566 * ring event handler function without any lock held. This function
567 * can be called from both worker thread context and interrupt
568 * context. This function also can be called from other thread which
569 * cleans up the SLI layer objects.
570 * This function copies the contents of the response iocb to the
571 * response iocb memory object provided by the caller of
572 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
573 * sleeps for the iocb completion.
576 lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba,
577 struct lpfc_iocbq *cmdiocbq,
578 struct lpfc_iocbq *rspiocbq)
580 struct bsg_job_data *dd_data;
582 struct fc_bsg_reply *bsg_reply;
584 struct lpfc_nodelist *ndlp;
585 struct lpfc_dmabuf *pcmd = NULL, *prsp = NULL;
586 struct fc_bsg_ctels_reply *els_reply;
589 unsigned int rsp_size;
592 dd_data = cmdiocbq->context1;
593 ndlp = dd_data->context_un.iocb.ndlp;
594 cmdiocbq->context1 = ndlp;
596 /* Determine if job has been aborted */
597 spin_lock_irqsave(&phba->ct_ev_lock, flags);
598 job = dd_data->set_job;
600 bsg_reply = job->reply;
601 /* Prevent timeout handling from trying to abort job */
604 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
606 /* Close the timeout handler abort window */
607 spin_lock_irqsave(&phba->hbalock, flags);
608 cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
609 spin_unlock_irqrestore(&phba->hbalock, flags);
611 rsp = &rspiocbq->iocb;
612 pcmd = (struct lpfc_dmabuf *)cmdiocbq->context2;
613 prsp = (struct lpfc_dmabuf *)pcmd->list.next;
615 /* Copy the completed job data or determine the job status if job is
620 if (rsp->ulpStatus == IOSTAT_SUCCESS) {
621 rsp_size = rsp->un.elsreq64.bdl.bdeSize;
622 bsg_reply->reply_payload_rcv_len =
623 sg_copy_from_buffer(job->reply_payload.sg_list,
624 job->reply_payload.sg_cnt,
627 } else if (rsp->ulpStatus == IOSTAT_LS_RJT) {
628 bsg_reply->reply_payload_rcv_len =
629 sizeof(struct fc_bsg_ctels_reply);
630 /* LS_RJT data returned in word 4 */
631 rjt_data = (uint8_t *)&rsp->un.ulpWord[4];
632 els_reply = &bsg_reply->reply_data.ctels_reply;
633 els_reply->status = FC_CTELS_STATUS_REJECT;
634 els_reply->rjt_data.action = rjt_data[3];
635 els_reply->rjt_data.reason_code = rjt_data[2];
636 els_reply->rjt_data.reason_explanation = rjt_data[1];
637 els_reply->rjt_data.vendor_unique = rjt_data[0];
644 lpfc_els_free_iocb(phba, cmdiocbq);
647 /* Complete the job if the job is still active */
650 bsg_reply->result = rc;
651 bsg_job_done(job, bsg_reply->result,
652 bsg_reply->reply_payload_rcv_len);
658 * lpfc_bsg_rport_els - send an ELS command from a bsg request
659 * @job: fc_bsg_job to handle
662 lpfc_bsg_rport_els(struct bsg_job *job)
664 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
665 struct lpfc_hba *phba = vport->phba;
666 struct lpfc_rport_data *rdata = fc_bsg_to_rport(job)->dd_data;
667 struct lpfc_nodelist *ndlp = rdata->pnode;
668 struct fc_bsg_request *bsg_request = job->request;
669 struct fc_bsg_reply *bsg_reply = job->reply;
672 struct lpfc_iocbq *cmdiocbq;
674 struct bsg_job_data *dd_data;
679 /* in case no data is transferred */
680 bsg_reply->reply_payload_rcv_len = 0;
682 /* verify the els command is not greater than the
683 * maximum ELS transfer size.
686 if (job->request_payload.payload_len > FCELSSIZE) {
691 /* allocate our bsg tracking structure */
692 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
694 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
695 "2735 Failed allocation of dd_data\n");
700 elscmd = bsg_request->rqst_data.r_els.els_code;
701 cmdsize = job->request_payload.payload_len;
703 if (!lpfc_nlp_get(ndlp)) {
708 /* We will use the allocated dma buffers by prep els iocb for command
709 * and response to ensure if the job times out and the request is freed,
710 * we won't be dma into memory that is no longer allocated to for the
714 cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp,
715 ndlp->nlp_DID, elscmd);
723 /* Transfer the request payload to allocated command dma buffer */
725 sg_copy_to_buffer(job->request_payload.sg_list,
726 job->request_payload.sg_cnt,
727 ((struct lpfc_dmabuf *)cmdiocbq->context2)->virt,
730 if (phba->sli_rev == LPFC_SLI_REV4)
731 cmdiocbq->iocb.ulpContext = phba->sli4_hba.rpi_ids[rpi];
733 cmdiocbq->iocb.ulpContext = rpi;
734 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
735 cmdiocbq->context1 = dd_data;
736 cmdiocbq->context_un.ndlp = ndlp;
737 cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp;
738 dd_data->type = TYPE_IOCB;
739 dd_data->set_job = job;
740 dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
741 dd_data->context_un.iocb.ndlp = ndlp;
742 dd_data->context_un.iocb.rmp = NULL;
743 job->dd_data = dd_data;
745 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
746 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
750 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
751 writel(creg_val, phba->HCregaddr);
752 readl(phba->HCregaddr); /* flush */
755 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
757 if (rc == IOCB_SUCCESS) {
758 spin_lock_irqsave(&phba->hbalock, flags);
759 /* make sure the I/O had not been completed/released */
760 if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
761 /* open up abort window to timeout handler */
762 cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
764 spin_unlock_irqrestore(&phba->hbalock, flags);
765 return 0; /* done for now */
766 } else if (rc == IOCB_BUSY) {
772 /* iocb failed so cleanup */
776 cmdiocbq->context1 = ndlp;
777 lpfc_els_free_iocb(phba, cmdiocbq);
786 /* make error code available to userspace */
787 bsg_reply->result = rc;
793 * lpfc_bsg_event_free - frees an allocated event structure
794 * @kref: Pointer to a kref.
796 * Called from kref_put. Back cast the kref into an event structure address.
797 * Free any events to get, delete associated nodes, free any events to see,
798 * free any data then free the event itself.
801 lpfc_bsg_event_free(struct kref *kref)
803 struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event,
805 struct event_data *ed;
807 list_del(&evt->node);
809 while (!list_empty(&evt->events_to_get)) {
810 ed = list_entry(evt->events_to_get.next, typeof(*ed), node);
816 while (!list_empty(&evt->events_to_see)) {
817 ed = list_entry(evt->events_to_see.next, typeof(*ed), node);
828 * lpfc_bsg_event_ref - increments the kref for an event
829 * @evt: Pointer to an event structure.
832 lpfc_bsg_event_ref(struct lpfc_bsg_event *evt)
834 kref_get(&evt->kref);
838 * lpfc_bsg_event_unref - Uses kref_put to free an event structure
839 * @evt: Pointer to an event structure.
842 lpfc_bsg_event_unref(struct lpfc_bsg_event *evt)
844 kref_put(&evt->kref, lpfc_bsg_event_free);
848 * lpfc_bsg_event_new - allocate and initialize a event structure
849 * @ev_mask: Mask of events.
850 * @ev_reg_id: Event reg id.
851 * @ev_req_id: Event request id.
853 static struct lpfc_bsg_event *
854 lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id)
856 struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL);
861 INIT_LIST_HEAD(&evt->events_to_get);
862 INIT_LIST_HEAD(&evt->events_to_see);
863 evt->type_mask = ev_mask;
864 evt->req_id = ev_req_id;
865 evt->reg_id = ev_reg_id;
866 evt->wait_time_stamp = jiffies;
868 init_waitqueue_head(&evt->wq);
869 kref_init(&evt->kref);
874 * diag_cmd_data_free - Frees an lpfc dma buffer extension
875 * @phba: Pointer to HBA context object.
876 * @mlist: Pointer to an lpfc dma buffer extension.
879 diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist)
881 struct lpfc_dmabufext *mlast;
882 struct pci_dev *pcidev;
883 struct list_head head, *curr, *next;
885 if ((!mlist) || (!lpfc_is_link_up(phba) &&
886 (phba->link_flag & LS_LOOPBACK_MODE))) {
890 pcidev = phba->pcidev;
891 list_add_tail(&head, &mlist->dma.list);
893 list_for_each_safe(curr, next, &head) {
894 mlast = list_entry(curr, struct lpfc_dmabufext , dma.list);
896 dma_free_coherent(&pcidev->dev,
906 * lpfc_bsg_ct_unsol_event - process an unsolicited CT command
911 * This function is called when an unsolicited CT command is received. It
912 * forwards the event to any processes registered to receive CT events.
915 lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
916 struct lpfc_iocbq *piocbq)
918 uint32_t evt_req_id = 0;
920 struct lpfc_dmabuf *dmabuf = NULL;
921 struct lpfc_bsg_event *evt;
922 struct event_data *evt_dat = NULL;
923 struct lpfc_iocbq *iocbq;
925 struct list_head head;
926 struct ulp_bde64 *bde;
929 struct lpfc_dmabuf *bdeBuf1 = piocbq->context2;
930 struct lpfc_dmabuf *bdeBuf2 = piocbq->context3;
931 struct lpfc_hbq_entry *hbqe;
932 struct lpfc_sli_ct_request *ct_req;
933 struct bsg_job *job = NULL;
934 struct fc_bsg_reply *bsg_reply;
935 struct bsg_job_data *dd_data = NULL;
939 INIT_LIST_HEAD(&head);
940 list_add_tail(&head, &piocbq->list);
942 if (piocbq->iocb.ulpBdeCount == 0 ||
943 piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0)
944 goto error_ct_unsol_exit;
946 if (phba->link_state == LPFC_HBA_ERROR ||
947 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)))
948 goto error_ct_unsol_exit;
950 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
953 dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh,
954 piocbq->iocb.un.cont64[0].addrLow);
955 dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr);
958 goto error_ct_unsol_exit;
959 ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt;
960 evt_req_id = ct_req->FsType;
961 cmd = ct_req->CommandResponse.bits.CmdRsp;
962 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
963 lpfc_sli_ringpostbuf_put(phba, pring, dmabuf);
965 spin_lock_irqsave(&phba->ct_ev_lock, flags);
966 list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
967 if (!(evt->type_mask & FC_REG_CT_EVENT) ||
968 evt->req_id != evt_req_id)
971 lpfc_bsg_event_ref(evt);
972 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
973 evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL);
974 if (evt_dat == NULL) {
975 spin_lock_irqsave(&phba->ct_ev_lock, flags);
976 lpfc_bsg_event_unref(evt);
977 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
978 "2614 Memory allocation failed for "
983 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
984 /* take accumulated byte count from the last iocbq */
985 iocbq = list_entry(head.prev, typeof(*iocbq), list);
986 evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len;
988 list_for_each_entry(iocbq, &head, list) {
989 for (i = 0; i < iocbq->iocb.ulpBdeCount; i++)
991 iocbq->iocb.un.cont64[i].tus.f.bdeSize;
995 evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL);
996 if (evt_dat->data == NULL) {
997 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
998 "2615 Memory allocation failed for "
999 "CT event data, size %d\n",
1002 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1003 lpfc_bsg_event_unref(evt);
1004 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1005 goto error_ct_unsol_exit;
1008 list_for_each_entry(iocbq, &head, list) {
1010 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
1011 bdeBuf1 = iocbq->context2;
1012 bdeBuf2 = iocbq->context3;
1014 for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) {
1015 if (phba->sli3_options &
1016 LPFC_SLI3_HBQ_ENABLED) {
1018 hbqe = (struct lpfc_hbq_entry *)
1019 &iocbq->iocb.un.ulpWord[0];
1020 size = hbqe->bde.tus.f.bdeSize;
1022 } else if (i == 1) {
1023 hbqe = (struct lpfc_hbq_entry *)
1024 &iocbq->iocb.unsli3.
1026 size = hbqe->bde.tus.f.bdeSize;
1029 if ((offset + size) > evt_dat->len)
1030 size = evt_dat->len - offset;
1032 size = iocbq->iocb.un.cont64[i].
1034 bde = &iocbq->iocb.un.cont64[i];
1035 dma_addr = getPaddr(bde->addrHigh,
1037 dmabuf = lpfc_sli_ringpostbuf_get(phba,
1041 lpfc_printf_log(phba, KERN_ERR,
1042 LOG_LIBDFC, "2616 No dmabuf "
1043 "found for iocbq x%px\n",
1045 kfree(evt_dat->data);
1047 spin_lock_irqsave(&phba->ct_ev_lock,
1049 lpfc_bsg_event_unref(evt);
1050 spin_unlock_irqrestore(
1051 &phba->ct_ev_lock, flags);
1052 goto error_ct_unsol_exit;
1054 memcpy((char *)(evt_dat->data) + offset,
1055 dmabuf->virt, size);
1057 if (evt_req_id != SLI_CT_ELX_LOOPBACK &&
1058 !(phba->sli3_options &
1059 LPFC_SLI3_HBQ_ENABLED)) {
1060 lpfc_sli_ringpostbuf_put(phba, pring,
1064 case ELX_LOOPBACK_DATA:
1067 diag_cmd_data_free(phba,
1068 (struct lpfc_dmabufext
1071 case ELX_LOOPBACK_XRI_SETUP:
1072 if ((phba->sli_rev ==
1074 (phba->sli3_options &
1075 LPFC_SLI3_HBQ_ENABLED
1077 lpfc_in_buf_free(phba,
1080 lpfc_post_buffer(phba,
1086 if (!(phba->sli3_options &
1087 LPFC_SLI3_HBQ_ENABLED))
1088 lpfc_post_buffer(phba,
1097 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1098 if (phba->sli_rev == LPFC_SLI_REV4) {
1099 evt_dat->immed_dat = phba->ctx_idx;
1100 phba->ctx_idx = (phba->ctx_idx + 1) % LPFC_CT_CTX_MAX;
1101 /* Provide warning for over-run of the ct_ctx array */
1102 if (phba->ct_ctx[evt_dat->immed_dat].valid ==
1104 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
1105 "2717 CT context array entry "
1106 "[%d] over-run: oxid:x%x, "
1107 "sid:x%x\n", phba->ctx_idx,
1109 evt_dat->immed_dat].oxid,
1111 evt_dat->immed_dat].SID);
1112 phba->ct_ctx[evt_dat->immed_dat].rxid =
1113 piocbq->iocb.ulpContext;
1114 phba->ct_ctx[evt_dat->immed_dat].oxid =
1115 piocbq->iocb.unsli3.rcvsli3.ox_id;
1116 phba->ct_ctx[evt_dat->immed_dat].SID =
1117 piocbq->iocb.un.rcvels.remoteID;
1118 phba->ct_ctx[evt_dat->immed_dat].valid = UNSOL_VALID;
1120 evt_dat->immed_dat = piocbq->iocb.ulpContext;
1122 evt_dat->type = FC_REG_CT_EVENT;
1123 list_add(&evt_dat->node, &evt->events_to_see);
1124 if (evt_req_id == SLI_CT_ELX_LOOPBACK) {
1125 wake_up_interruptible(&evt->wq);
1126 lpfc_bsg_event_unref(evt);
1130 list_move(evt->events_to_see.prev, &evt->events_to_get);
1132 dd_data = (struct bsg_job_data *)evt->dd_data;
1133 job = dd_data->set_job;
1134 dd_data->set_job = NULL;
1135 lpfc_bsg_event_unref(evt);
1137 bsg_reply = job->reply;
1138 bsg_reply->reply_payload_rcv_len = size;
1139 /* make error code available to userspace */
1140 bsg_reply->result = 0;
1141 job->dd_data = NULL;
1142 /* complete the job back to userspace */
1143 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1144 bsg_job_done(job, bsg_reply->result,
1145 bsg_reply->reply_payload_rcv_len);
1146 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1149 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1151 error_ct_unsol_exit:
1152 if (!list_empty(&head))
1154 if ((phba->sli_rev < LPFC_SLI_REV4) &&
1155 (evt_req_id == SLI_CT_ELX_LOOPBACK))
1161 * lpfc_bsg_ct_unsol_abort - handler ct abort to management plane
1162 * @phba: Pointer to HBA context object.
1163 * @dmabuf: pointer to a dmabuf that describes the FC sequence
1165 * This function handles abort to the CT command toward management plane
1168 * If the pending context of a CT command to management plane present, clears
1169 * such context and returns 1 for handled; otherwise, it returns 0 indicating
1170 * no context exists.
1173 lpfc_bsg_ct_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf)
1175 struct fc_frame_header fc_hdr;
1176 struct fc_frame_header *fc_hdr_ptr = &fc_hdr;
1177 int ctx_idx, handled = 0;
1178 uint16_t oxid, rxid;
1181 memcpy(fc_hdr_ptr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
1182 sid = sli4_sid_from_fc_hdr(fc_hdr_ptr);
1183 oxid = be16_to_cpu(fc_hdr_ptr->fh_ox_id);
1184 rxid = be16_to_cpu(fc_hdr_ptr->fh_rx_id);
1186 for (ctx_idx = 0; ctx_idx < LPFC_CT_CTX_MAX; ctx_idx++) {
1187 if (phba->ct_ctx[ctx_idx].valid != UNSOL_VALID)
1189 if (phba->ct_ctx[ctx_idx].rxid != rxid)
1191 if (phba->ct_ctx[ctx_idx].oxid != oxid)
1193 if (phba->ct_ctx[ctx_idx].SID != sid)
1195 phba->ct_ctx[ctx_idx].valid = UNSOL_INVALID;
1202 * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command
1203 * @job: SET_EVENT fc_bsg_job
1206 lpfc_bsg_hba_set_event(struct bsg_job *job)
1208 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
1209 struct lpfc_hba *phba = vport->phba;
1210 struct fc_bsg_request *bsg_request = job->request;
1211 struct set_ct_event *event_req;
1212 struct lpfc_bsg_event *evt;
1214 struct bsg_job_data *dd_data = NULL;
1216 unsigned long flags;
1218 if (job->request_len <
1219 sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) {
1220 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1221 "2612 Received SET_CT_EVENT below minimum "
1227 event_req = (struct set_ct_event *)
1228 bsg_request->rqst_data.h_vendor.vendor_cmd;
1229 ev_mask = ((uint32_t)(unsigned long)event_req->type_mask &
1231 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1232 list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
1233 if (evt->reg_id == event_req->ev_reg_id) {
1234 lpfc_bsg_event_ref(evt);
1235 evt->wait_time_stamp = jiffies;
1236 dd_data = (struct bsg_job_data *)evt->dd_data;
1240 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1242 if (&evt->node == &phba->ct_ev_waiters) {
1243 /* no event waiting struct yet - first call */
1244 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
1245 if (dd_data == NULL) {
1246 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1247 "2734 Failed allocation of dd_data\n");
1251 evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id,
1252 event_req->ev_req_id);
1254 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1255 "2617 Failed allocation of event "
1260 dd_data->type = TYPE_EVT;
1261 dd_data->set_job = NULL;
1262 dd_data->context_un.evt = evt;
1263 evt->dd_data = (void *)dd_data;
1264 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1265 list_add(&evt->node, &phba->ct_ev_waiters);
1266 lpfc_bsg_event_ref(evt);
1267 evt->wait_time_stamp = jiffies;
1268 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1271 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1273 dd_data->set_job = job; /* for unsolicited command */
1274 job->dd_data = dd_data; /* for fc transport timeout callback*/
1275 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1276 return 0; /* call job done later */
1280 job->dd_data = NULL;
1285 * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command
1286 * @job: GET_EVENT fc_bsg_job
1289 lpfc_bsg_hba_get_event(struct bsg_job *job)
1291 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
1292 struct lpfc_hba *phba = vport->phba;
1293 struct fc_bsg_request *bsg_request = job->request;
1294 struct fc_bsg_reply *bsg_reply = job->reply;
1295 struct get_ct_event *event_req;
1296 struct get_ct_event_reply *event_reply;
1297 struct lpfc_bsg_event *evt, *evt_next;
1298 struct event_data *evt_dat = NULL;
1299 unsigned long flags;
1302 if (job->request_len <
1303 sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) {
1304 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1305 "2613 Received GET_CT_EVENT request below "
1311 event_req = (struct get_ct_event *)
1312 bsg_request->rqst_data.h_vendor.vendor_cmd;
1314 event_reply = (struct get_ct_event_reply *)
1315 bsg_reply->reply_data.vendor_reply.vendor_rsp;
1316 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1317 list_for_each_entry_safe(evt, evt_next, &phba->ct_ev_waiters, node) {
1318 if (evt->reg_id == event_req->ev_reg_id) {
1319 if (list_empty(&evt->events_to_get))
1321 lpfc_bsg_event_ref(evt);
1322 evt->wait_time_stamp = jiffies;
1323 evt_dat = list_entry(evt->events_to_get.prev,
1324 struct event_data, node);
1325 list_del(&evt_dat->node);
1329 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1331 /* The app may continue to ask for event data until it gets
1332 * an error indicating that there isn't anymore
1334 if (evt_dat == NULL) {
1335 bsg_reply->reply_payload_rcv_len = 0;
1340 if (evt_dat->len > job->request_payload.payload_len) {
1341 evt_dat->len = job->request_payload.payload_len;
1342 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1343 "2618 Truncated event data at %d "
1345 job->request_payload.payload_len);
1348 event_reply->type = evt_dat->type;
1349 event_reply->immed_data = evt_dat->immed_dat;
1350 if (evt_dat->len > 0)
1351 bsg_reply->reply_payload_rcv_len =
1352 sg_copy_from_buffer(job->request_payload.sg_list,
1353 job->request_payload.sg_cnt,
1354 evt_dat->data, evt_dat->len);
1356 bsg_reply->reply_payload_rcv_len = 0;
1359 kfree(evt_dat->data);
1363 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1364 lpfc_bsg_event_unref(evt);
1365 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1366 job->dd_data = NULL;
1367 bsg_reply->result = 0;
1368 bsg_job_done(job, bsg_reply->result,
1369 bsg_reply->reply_payload_rcv_len);
1373 job->dd_data = NULL;
1374 bsg_reply->result = rc;
1379 * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler
1380 * @phba: Pointer to HBA context object.
1381 * @cmdiocbq: Pointer to command iocb.
1382 * @rspiocbq: Pointer to response iocb.
1384 * This function is the completion handler for iocbs issued using
1385 * lpfc_issue_ct_rsp_cmp function. This function is called by the
1386 * ring event handler function without any lock held. This function
1387 * can be called from both worker thread context and interrupt
1388 * context. This function also can be called from other thread which
1389 * cleans up the SLI layer objects.
1390 * This function copy the contents of the response iocb to the
1391 * response iocb memory object provided by the caller of
1392 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
1393 * sleeps for the iocb completion.
1396 lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba,
1397 struct lpfc_iocbq *cmdiocbq,
1398 struct lpfc_iocbq *rspiocbq)
1400 struct bsg_job_data *dd_data;
1401 struct bsg_job *job;
1402 struct fc_bsg_reply *bsg_reply;
1404 struct lpfc_dmabuf *bmp, *cmp;
1405 struct lpfc_nodelist *ndlp;
1406 unsigned long flags;
1409 dd_data = cmdiocbq->context1;
1411 /* Determine if job has been aborted */
1412 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1413 job = dd_data->set_job;
1415 /* Prevent timeout handling from trying to abort job */
1416 job->dd_data = NULL;
1418 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1420 /* Close the timeout handler abort window */
1421 spin_lock_irqsave(&phba->hbalock, flags);
1422 cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
1423 spin_unlock_irqrestore(&phba->hbalock, flags);
1425 ndlp = dd_data->context_un.iocb.ndlp;
1426 cmp = cmdiocbq->context2;
1427 bmp = cmdiocbq->context3;
1428 rsp = &rspiocbq->iocb;
1430 /* Copy the completed job data or set the error status */
1433 bsg_reply = job->reply;
1434 if (rsp->ulpStatus) {
1435 if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
1436 switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
1437 case IOERR_SEQUENCE_TIMEOUT:
1440 case IOERR_INVALID_RPI:
1451 bsg_reply->reply_payload_rcv_len = 0;
1455 lpfc_free_bsg_buffers(phba, cmp);
1456 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
1458 lpfc_sli_release_iocbq(phba, cmdiocbq);
1462 /* Complete the job if the job is still active */
1465 bsg_reply->result = rc;
1466 bsg_job_done(job, bsg_reply->result,
1467 bsg_reply->reply_payload_rcv_len);
1473 * lpfc_issue_ct_rsp - issue a ct response
1474 * @phba: Pointer to HBA context object.
1475 * @job: Pointer to the job object.
1476 * @tag: tag index value into the ports context exchange array.
1477 * @bmp: Pointer to a dma buffer descriptor.
1478 * @num_entry: Number of enties in the bde.
1481 lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct bsg_job *job, uint32_t tag,
1482 struct lpfc_dmabuf *cmp, struct lpfc_dmabuf *bmp,
1486 struct lpfc_iocbq *ctiocb = NULL;
1488 struct lpfc_nodelist *ndlp = NULL;
1489 struct bsg_job_data *dd_data;
1490 unsigned long flags;
1493 /* allocate our bsg tracking structure */
1494 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
1496 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1497 "2736 Failed allocation of dd_data\n");
1502 /* Allocate buffer for command iocb */
1503 ctiocb = lpfc_sli_get_iocbq(phba);
1509 icmd = &ctiocb->iocb;
1510 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
1511 icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
1512 icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys);
1513 icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
1514 icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64));
1515 icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
1516 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
1517 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL;
1518 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
1520 /* Fill in rest of iocb */
1521 icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
1522 icmd->ulpBdeCount = 1;
1524 icmd->ulpClass = CLASS3;
1525 if (phba->sli_rev == LPFC_SLI_REV4) {
1526 /* Do not issue unsol response if oxid not marked as valid */
1527 if (phba->ct_ctx[tag].valid != UNSOL_VALID) {
1529 goto issue_ct_rsp_exit;
1531 icmd->ulpContext = phba->ct_ctx[tag].rxid;
1532 icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid;
1533 ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID);
1535 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
1536 "2721 ndlp null for oxid %x SID %x\n",
1538 phba->ct_ctx[tag].SID);
1540 goto issue_ct_rsp_exit;
1543 /* Check if the ndlp is active */
1544 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
1546 goto issue_ct_rsp_exit;
1549 /* get a refernece count so the ndlp doesn't go away while
1552 if (!lpfc_nlp_get(ndlp)) {
1554 goto issue_ct_rsp_exit;
1557 icmd->un.ulpWord[3] =
1558 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
1560 /* The exchange is done, mark the entry as invalid */
1561 phba->ct_ctx[tag].valid = UNSOL_INVALID;
1563 icmd->ulpContext = (ushort) tag;
1565 icmd->ulpTimeout = phba->fc_ratov * 2;
1567 /* Xmit CT response on exchange <xid> */
1568 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1569 "2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n",
1570 icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state);
1572 ctiocb->iocb_flag |= LPFC_IO_LIBDFC;
1573 ctiocb->vport = phba->pport;
1574 ctiocb->context1 = dd_data;
1575 ctiocb->context2 = cmp;
1576 ctiocb->context3 = bmp;
1577 ctiocb->context_un.ndlp = ndlp;
1578 ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp;
1580 dd_data->type = TYPE_IOCB;
1581 dd_data->set_job = job;
1582 dd_data->context_un.iocb.cmdiocbq = ctiocb;
1583 dd_data->context_un.iocb.ndlp = ndlp;
1584 dd_data->context_un.iocb.rmp = NULL;
1585 job->dd_data = dd_data;
1587 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
1588 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1590 goto issue_ct_rsp_exit;
1592 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1593 writel(creg_val, phba->HCregaddr);
1594 readl(phba->HCregaddr); /* flush */
1597 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
1599 if (rc == IOCB_SUCCESS) {
1600 spin_lock_irqsave(&phba->hbalock, flags);
1601 /* make sure the I/O had not been completed/released */
1602 if (ctiocb->iocb_flag & LPFC_IO_LIBDFC) {
1603 /* open up abort window to timeout handler */
1604 ctiocb->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
1606 spin_unlock_irqrestore(&phba->hbalock, flags);
1607 return 0; /* done for now */
1610 /* iocb failed so cleanup */
1611 job->dd_data = NULL;
1614 lpfc_sli_release_iocbq(phba, ctiocb);
1622 * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command
1623 * @job: SEND_MGMT_RESP fc_bsg_job
1626 lpfc_bsg_send_mgmt_rsp(struct bsg_job *job)
1628 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
1629 struct lpfc_hba *phba = vport->phba;
1630 struct fc_bsg_request *bsg_request = job->request;
1631 struct fc_bsg_reply *bsg_reply = job->reply;
1632 struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *)
1633 bsg_request->rqst_data.h_vendor.vendor_cmd;
1634 struct ulp_bde64 *bpl;
1635 struct lpfc_dmabuf *bmp = NULL, *cmp = NULL;
1637 uint32_t tag = mgmt_resp->tag;
1638 unsigned long reqbfrcnt =
1639 (unsigned long)job->request_payload.payload_len;
1642 /* in case no data is transferred */
1643 bsg_reply->reply_payload_rcv_len = 0;
1645 if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) {
1647 goto send_mgmt_rsp_exit;
1650 bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1653 goto send_mgmt_rsp_exit;
1656 bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
1659 goto send_mgmt_rsp_free_bmp;
1662 INIT_LIST_HEAD(&bmp->list);
1663 bpl = (struct ulp_bde64 *) bmp->virt;
1664 bpl_entries = (LPFC_BPL_SIZE/sizeof(struct ulp_bde64));
1665 cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
1666 1, bpl, &bpl_entries);
1669 goto send_mgmt_rsp_free_bmp;
1671 lpfc_bsg_copy_data(cmp, &job->request_payload,
1672 job->request_payload.payload_len, 1);
1674 rc = lpfc_issue_ct_rsp(phba, job, tag, cmp, bmp, bpl_entries);
1676 if (rc == IOCB_SUCCESS)
1677 return 0; /* done for now */
1681 lpfc_free_bsg_buffers(phba, cmp);
1683 send_mgmt_rsp_free_bmp:
1685 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
1688 /* make error code available to userspace */
1689 bsg_reply->result = rc;
1690 job->dd_data = NULL;
1695 * lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode
1696 * @phba: Pointer to HBA context object.
1698 * This function is responsible for preparing driver for diag loopback
1702 lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba)
1704 struct lpfc_vport **vports;
1705 struct Scsi_Host *shost;
1706 struct lpfc_sli *psli;
1707 struct lpfc_queue *qp = NULL;
1708 struct lpfc_sli_ring *pring;
1716 if ((phba->link_state == LPFC_HBA_ERROR) ||
1717 (psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
1718 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
1721 vports = lpfc_create_vport_work_array(phba);
1723 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1724 shost = lpfc_shost_from_vport(vports[i]);
1725 scsi_block_requests(shost);
1727 lpfc_destroy_vport_work_array(phba, vports);
1729 shost = lpfc_shost_from_vport(phba->pport);
1730 scsi_block_requests(shost);
1733 if (phba->sli_rev != LPFC_SLI_REV4) {
1734 pring = &psli->sli3_ring[LPFC_FCP_RING];
1735 lpfc_emptyq_wait(phba, &pring->txcmplq, &phba->hbalock);
1738 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1740 if (!pring || (pring->ringno != LPFC_FCP_RING))
1742 if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
1750 * lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode
1751 * @phba: Pointer to HBA context object.
1753 * This function is responsible for driver exit processing of setting up
1754 * diag loopback mode on device.
1757 lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba)
1759 struct Scsi_Host *shost;
1760 struct lpfc_vport **vports;
1763 vports = lpfc_create_vport_work_array(phba);
1765 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1766 shost = lpfc_shost_from_vport(vports[i]);
1767 scsi_unblock_requests(shost);
1769 lpfc_destroy_vport_work_array(phba, vports);
1771 shost = lpfc_shost_from_vport(phba->pport);
1772 scsi_unblock_requests(shost);
1778 * lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command
1779 * @phba: Pointer to HBA context object.
1780 * @job: LPFC_BSG_VENDOR_DIAG_MODE
1782 * This function is responsible for placing an sli3 port into diagnostic
1783 * loopback mode in order to perform a diagnostic loopback test.
1784 * All new scsi requests are blocked, a small delay is used to allow the
1785 * scsi requests to complete then the link is brought down. If the link is
1786 * is placed in loopback mode then scsi requests are again allowed
1787 * so the scsi mid-layer doesn't give up on the port.
1788 * All of this is done in-line.
1791 lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct bsg_job *job)
1793 struct fc_bsg_request *bsg_request = job->request;
1794 struct fc_bsg_reply *bsg_reply = job->reply;
1795 struct diag_mode_set *loopback_mode;
1796 uint32_t link_flags;
1798 LPFC_MBOXQ_t *pmboxq = NULL;
1799 int mbxstatus = MBX_SUCCESS;
1803 /* no data to return just the return code */
1804 bsg_reply->reply_payload_rcv_len = 0;
1806 if (job->request_len < sizeof(struct fc_bsg_request) +
1807 sizeof(struct diag_mode_set)) {
1808 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1809 "2738 Received DIAG MODE request size:%d "
1810 "below the minimum size:%d\n",
1812 (int)(sizeof(struct fc_bsg_request) +
1813 sizeof(struct diag_mode_set)));
1818 rc = lpfc_bsg_diag_mode_enter(phba);
1822 /* bring the link to diagnostic mode */
1823 loopback_mode = (struct diag_mode_set *)
1824 bsg_request->rqst_data.h_vendor.vendor_cmd;
1825 link_flags = loopback_mode->type;
1826 timeout = loopback_mode->timeout * 100;
1828 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1831 goto loopback_mode_exit;
1833 memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1834 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
1835 pmboxq->u.mb.mbxOwner = OWN_HOST;
1837 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
1839 if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) {
1840 /* wait for link down before proceeding */
1842 while (phba->link_state != LPFC_LINK_DOWN) {
1843 if (i++ > timeout) {
1845 goto loopback_mode_exit;
1850 memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1851 if (link_flags == INTERNAL_LOOP_BACK)
1852 pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
1854 pmboxq->u.mb.un.varInitLnk.link_flags =
1855 FLAGS_TOPOLOGY_MODE_LOOP;
1857 pmboxq->u.mb.mbxCommand = MBX_INIT_LINK;
1858 pmboxq->u.mb.mbxOwner = OWN_HOST;
1860 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
1863 if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus))
1866 spin_lock_irq(&phba->hbalock);
1867 phba->link_flag |= LS_LOOPBACK_MODE;
1868 spin_unlock_irq(&phba->hbalock);
1869 /* wait for the link attention interrupt */
1873 while (phba->link_state != LPFC_HBA_READY) {
1874 if (i++ > timeout) {
1887 lpfc_bsg_diag_mode_exit(phba);
1890 * Let SLI layer release mboxq if mbox command completed after timeout.
1892 if (pmboxq && mbxstatus != MBX_TIMEOUT)
1893 mempool_free(pmboxq, phba->mbox_mem_pool);
1896 /* make error code available to userspace */
1897 bsg_reply->result = rc;
1898 /* complete the job back to userspace if no error */
1900 bsg_job_done(job, bsg_reply->result,
1901 bsg_reply->reply_payload_rcv_len);
1906 * lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state
1907 * @phba: Pointer to HBA context object.
1908 * @diag: Flag for set link to diag or nomral operation state.
1910 * This function is responsible for issuing a sli4 mailbox command for setting
1911 * link to either diag state or normal operation state.
1914 lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag)
1916 LPFC_MBOXQ_t *pmboxq;
1917 struct lpfc_mbx_set_link_diag_state *link_diag_state;
1918 uint32_t req_len, alloc_len;
1919 int mbxstatus = MBX_SUCCESS, rc;
1921 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1925 req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
1926 sizeof(struct lpfc_sli4_cfg_mhdr));
1927 alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
1928 LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
1929 req_len, LPFC_SLI4_MBX_EMBED);
1930 if (alloc_len != req_len) {
1932 goto link_diag_state_set_out;
1934 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
1935 "3128 Set link to diagnostic state:x%x (x%x/x%x)\n",
1936 diag, phba->sli4_hba.lnk_info.lnk_tp,
1937 phba->sli4_hba.lnk_info.lnk_no);
1939 link_diag_state = &pmboxq->u.mqe.un.link_diag_state;
1940 bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req,
1941 LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE);
1942 bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req,
1943 phba->sli4_hba.lnk_info.lnk_no);
1944 bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req,
1945 phba->sli4_hba.lnk_info.lnk_tp);
1947 bf_set(lpfc_mbx_set_diag_state_diag,
1948 &link_diag_state->u.req, 1);
1950 bf_set(lpfc_mbx_set_diag_state_diag,
1951 &link_diag_state->u.req, 0);
1953 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
1955 if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0))
1960 link_diag_state_set_out:
1961 if (pmboxq && (mbxstatus != MBX_TIMEOUT))
1962 mempool_free(pmboxq, phba->mbox_mem_pool);
1968 * lpfc_sli4_bsg_set_loopback_mode - set sli4 internal loopback diagnostic
1969 * @phba: Pointer to HBA context object.
1970 * @mode: loopback mode to set
1971 * @link_no: link number for loopback mode to set
1973 * This function is responsible for issuing a sli4 mailbox command for setting
1974 * up loopback diagnostic for a link.
1977 lpfc_sli4_bsg_set_loopback_mode(struct lpfc_hba *phba, int mode,
1980 LPFC_MBOXQ_t *pmboxq;
1981 uint32_t req_len, alloc_len;
1982 struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback;
1983 int mbxstatus = MBX_SUCCESS, rc = 0;
1985 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1988 req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) -
1989 sizeof(struct lpfc_sli4_cfg_mhdr));
1990 alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
1991 LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK,
1992 req_len, LPFC_SLI4_MBX_EMBED);
1993 if (alloc_len != req_len) {
1994 mempool_free(pmboxq, phba->mbox_mem_pool);
1997 link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback;
1998 bf_set(lpfc_mbx_set_diag_state_link_num,
1999 &link_diag_loopback->u.req, link_no);
2001 if (phba->sli4_hba.conf_trunk & (1 << link_no)) {
2002 bf_set(lpfc_mbx_set_diag_state_link_type,
2003 &link_diag_loopback->u.req, LPFC_LNK_FC_TRUNKED);
2005 bf_set(lpfc_mbx_set_diag_state_link_type,
2006 &link_diag_loopback->u.req,
2007 phba->sli4_hba.lnk_info.lnk_tp);
2010 bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req,
2013 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
2014 if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) {
2015 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2016 "3127 Failed setup loopback mode mailbox "
2017 "command, rc:x%x, status:x%x\n", mbxstatus,
2018 pmboxq->u.mb.mbxStatus);
2021 if (pmboxq && (mbxstatus != MBX_TIMEOUT))
2022 mempool_free(pmboxq, phba->mbox_mem_pool);
2027 * lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic
2028 * @phba: Pointer to HBA context object.
2030 * This function set up SLI4 FC port registrations for diagnostic run, which
2031 * includes all the rpis, vfi, and also vpi.
2034 lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba)
2038 if (phba->pport->fc_flag & FC_VFI_REGISTERED) {
2039 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2040 "3136 Port still had vfi registered: "
2041 "mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n",
2042 phba->pport->fc_myDID, phba->fcf.fcfi,
2043 phba->sli4_hba.vfi_ids[phba->pport->vfi],
2044 phba->vpi_ids[phba->pport->vpi]);
2047 rc = lpfc_issue_reg_vfi(phba->pport);
2052 * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command
2053 * @phba: Pointer to HBA context object.
2054 * @job: LPFC_BSG_VENDOR_DIAG_MODE
2056 * This function is responsible for placing an sli4 port into diagnostic
2057 * loopback mode in order to perform a diagnostic loopback test.
2060 lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct bsg_job *job)
2062 struct fc_bsg_request *bsg_request = job->request;
2063 struct fc_bsg_reply *bsg_reply = job->reply;
2064 struct diag_mode_set *loopback_mode;
2065 uint32_t link_flags, timeout, link_no;
2068 /* no data to return just the return code */
2069 bsg_reply->reply_payload_rcv_len = 0;
2071 if (job->request_len < sizeof(struct fc_bsg_request) +
2072 sizeof(struct diag_mode_set)) {
2073 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2074 "3011 Received DIAG MODE request size:%d "
2075 "below the minimum size:%d\n",
2077 (int)(sizeof(struct fc_bsg_request) +
2078 sizeof(struct diag_mode_set)));
2083 loopback_mode = (struct diag_mode_set *)
2084 bsg_request->rqst_data.h_vendor.vendor_cmd;
2085 link_flags = loopback_mode->type;
2086 timeout = loopback_mode->timeout * 100;
2088 if (loopback_mode->physical_link == -1)
2089 link_no = phba->sli4_hba.lnk_info.lnk_no;
2091 link_no = loopback_mode->physical_link;
2093 if (link_flags == DISABLE_LOOP_BACK) {
2094 rc = lpfc_sli4_bsg_set_loopback_mode(phba,
2095 LPFC_DIAG_LOOPBACK_TYPE_DISABLE,
2098 /* Unset the need disable bit */
2099 phba->sli4_hba.conf_trunk &= ~((1 << link_no) << 4);
2103 /* Check if we need to disable the loopback state */
2104 if (phba->sli4_hba.conf_trunk & ((1 << link_no) << 4)) {
2110 rc = lpfc_bsg_diag_mode_enter(phba);
2114 /* indicate we are in loobpack diagnostic mode */
2115 spin_lock_irq(&phba->hbalock);
2116 phba->link_flag |= LS_LOOPBACK_MODE;
2117 spin_unlock_irq(&phba->hbalock);
2119 /* reset port to start frome scratch */
2120 rc = lpfc_selective_reset(phba);
2124 /* bring the link to diagnostic mode */
2125 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2126 "3129 Bring link to diagnostic state.\n");
2128 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
2130 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2131 "3130 Failed to bring link to diagnostic "
2132 "state, rc:x%x\n", rc);
2133 goto loopback_mode_exit;
2136 /* wait for link down before proceeding */
2138 while (phba->link_state != LPFC_LINK_DOWN) {
2139 if (i++ > timeout) {
2141 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2142 "3131 Timeout waiting for link to "
2143 "diagnostic mode, timeout:%d ms\n",
2145 goto loopback_mode_exit;
2150 /* set up loopback mode */
2151 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2152 "3132 Set up loopback mode:x%x\n", link_flags);
2154 switch (link_flags) {
2155 case INTERNAL_LOOP_BACK:
2156 if (phba->sli4_hba.conf_trunk & (1 << link_no)) {
2157 rc = lpfc_sli4_bsg_set_loopback_mode(phba,
2158 LPFC_DIAG_LOOPBACK_TYPE_INTERNAL,
2161 /* Trunk is configured, but link is not in this trunk */
2162 if (phba->sli4_hba.conf_trunk) {
2164 goto loopback_mode_exit;
2167 rc = lpfc_sli4_bsg_set_loopback_mode(phba,
2168 LPFC_DIAG_LOOPBACK_TYPE_INTERNAL,
2173 /* Set the need disable bit */
2174 phba->sli4_hba.conf_trunk |= (1 << link_no) << 4;
2178 case EXTERNAL_LOOP_BACK:
2179 if (phba->sli4_hba.conf_trunk & (1 << link_no)) {
2180 rc = lpfc_sli4_bsg_set_loopback_mode(phba,
2181 LPFC_DIAG_LOOPBACK_TYPE_EXTERNAL_TRUNKED,
2184 /* Trunk is configured, but link is not in this trunk */
2185 if (phba->sli4_hba.conf_trunk) {
2187 goto loopback_mode_exit;
2190 rc = lpfc_sli4_bsg_set_loopback_mode(phba,
2191 LPFC_DIAG_LOOPBACK_TYPE_SERDES,
2196 /* Set the need disable bit */
2197 phba->sli4_hba.conf_trunk |= (1 << link_no) << 4;
2203 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
2204 "3141 Loopback mode:x%x not supported\n",
2206 goto loopback_mode_exit;
2210 /* wait for the link attention interrupt */
2213 while (phba->link_state < LPFC_LINK_UP) {
2214 if (i++ > timeout) {
2216 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2217 "3137 Timeout waiting for link up "
2218 "in loopback mode, timeout:%d ms\n",
2226 /* port resource registration setup for loopback diagnostic */
2228 /* set up a none zero myDID for loopback test */
2229 phba->pport->fc_myDID = 1;
2230 rc = lpfc_sli4_diag_fcport_reg_setup(phba);
2232 goto loopback_mode_exit;
2235 /* wait for the port ready */
2238 while (phba->link_state != LPFC_HBA_READY) {
2239 if (i++ > timeout) {
2241 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2242 "3133 Timeout waiting for port "
2243 "loopback mode ready, timeout:%d ms\n",
2252 /* clear loopback diagnostic mode */
2254 spin_lock_irq(&phba->hbalock);
2255 phba->link_flag &= ~LS_LOOPBACK_MODE;
2256 spin_unlock_irq(&phba->hbalock);
2258 lpfc_bsg_diag_mode_exit(phba);
2261 /* make error code available to userspace */
2262 bsg_reply->result = rc;
2263 /* complete the job back to userspace if no error */
2265 bsg_job_done(job, bsg_reply->result,
2266 bsg_reply->reply_payload_rcv_len);
2271 * lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode
2272 * @job: LPFC_BSG_VENDOR_DIAG_MODE
2274 * This function is responsible for responding to check and dispatch bsg diag
2275 * command from the user to proper driver action routines.
2278 lpfc_bsg_diag_loopback_mode(struct bsg_job *job)
2280 struct Scsi_Host *shost;
2281 struct lpfc_vport *vport;
2282 struct lpfc_hba *phba;
2285 shost = fc_bsg_to_shost(job);
2288 vport = shost_priv(shost);
2295 if (phba->sli_rev < LPFC_SLI_REV4)
2296 rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job);
2297 else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
2298 LPFC_SLI_INTF_IF_TYPE_2)
2299 rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job);
2307 * lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode
2308 * @job: LPFC_BSG_VENDOR_DIAG_MODE_END
2310 * This function is responsible for responding to check and dispatch bsg diag
2311 * command from the user to proper driver action routines.
2314 lpfc_sli4_bsg_diag_mode_end(struct bsg_job *job)
2316 struct fc_bsg_request *bsg_request = job->request;
2317 struct fc_bsg_reply *bsg_reply = job->reply;
2318 struct Scsi_Host *shost;
2319 struct lpfc_vport *vport;
2320 struct lpfc_hba *phba;
2321 struct diag_mode_set *loopback_mode_end_cmd;
2325 shost = fc_bsg_to_shost(job);
2328 vport = shost_priv(shost);
2335 if (phba->sli_rev < LPFC_SLI_REV4)
2337 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
2338 LPFC_SLI_INTF_IF_TYPE_2)
2341 /* clear loopback diagnostic mode */
2342 spin_lock_irq(&phba->hbalock);
2343 phba->link_flag &= ~LS_LOOPBACK_MODE;
2344 spin_unlock_irq(&phba->hbalock);
2345 loopback_mode_end_cmd = (struct diag_mode_set *)
2346 bsg_request->rqst_data.h_vendor.vendor_cmd;
2347 timeout = loopback_mode_end_cmd->timeout * 100;
2349 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
2351 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2352 "3139 Failed to bring link to diagnostic "
2353 "state, rc:x%x\n", rc);
2354 goto loopback_mode_end_exit;
2357 /* wait for link down before proceeding */
2359 while (phba->link_state != LPFC_LINK_DOWN) {
2360 if (i++ > timeout) {
2361 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2362 "3140 Timeout waiting for link to "
2363 "diagnostic mode_end, timeout:%d ms\n",
2365 /* there is nothing much we can do here */
2371 /* reset port resource registrations */
2372 rc = lpfc_selective_reset(phba);
2373 phba->pport->fc_myDID = 0;
2375 loopback_mode_end_exit:
2376 /* make return code available to userspace */
2377 bsg_reply->result = rc;
2378 /* complete the job back to userspace if no error */
2380 bsg_job_done(job, bsg_reply->result,
2381 bsg_reply->reply_payload_rcv_len);
2386 * lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test
2387 * @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST
2389 * This function is to perform SLI4 diag link test request from the user
2393 lpfc_sli4_bsg_link_diag_test(struct bsg_job *job)
2395 struct fc_bsg_request *bsg_request = job->request;
2396 struct fc_bsg_reply *bsg_reply = job->reply;
2397 struct Scsi_Host *shost;
2398 struct lpfc_vport *vport;
2399 struct lpfc_hba *phba;
2400 LPFC_MBOXQ_t *pmboxq;
2401 struct sli4_link_diag *link_diag_test_cmd;
2402 uint32_t req_len, alloc_len;
2403 struct lpfc_mbx_run_link_diag_test *run_link_diag_test;
2404 union lpfc_sli4_cfg_shdr *shdr;
2405 uint32_t shdr_status, shdr_add_status;
2406 struct diag_status *diag_status_reply;
2407 int mbxstatus, rc = 0;
2409 shost = fc_bsg_to_shost(job);
2414 vport = shost_priv(shost);
2425 if (phba->sli_rev < LPFC_SLI_REV4) {
2429 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
2430 LPFC_SLI_INTF_IF_TYPE_2) {
2435 if (job->request_len < sizeof(struct fc_bsg_request) +
2436 sizeof(struct sli4_link_diag)) {
2437 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2438 "3013 Received LINK DIAG TEST request "
2439 " size:%d below the minimum size:%d\n",
2441 (int)(sizeof(struct fc_bsg_request) +
2442 sizeof(struct sli4_link_diag)));
2447 rc = lpfc_bsg_diag_mode_enter(phba);
2451 link_diag_test_cmd = (struct sli4_link_diag *)
2452 bsg_request->rqst_data.h_vendor.vendor_cmd;
2454 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
2459 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2461 goto link_diag_test_exit;
2463 req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
2464 sizeof(struct lpfc_sli4_cfg_mhdr));
2465 alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2466 LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
2467 req_len, LPFC_SLI4_MBX_EMBED);
2468 if (alloc_len != req_len)
2469 goto link_diag_test_exit;
2471 run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test;
2472 bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req,
2473 phba->sli4_hba.lnk_info.lnk_no);
2474 bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req,
2475 phba->sli4_hba.lnk_info.lnk_tp);
2476 bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req,
2477 link_diag_test_cmd->test_id);
2478 bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req,
2479 link_diag_test_cmd->loops);
2480 bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req,
2481 link_diag_test_cmd->test_version);
2482 bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req,
2483 link_diag_test_cmd->error_action);
2485 mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2487 shdr = (union lpfc_sli4_cfg_shdr *)
2488 &pmboxq->u.mqe.un.sli4_config.header.cfg_shdr;
2489 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
2490 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
2491 if (shdr_status || shdr_add_status || mbxstatus) {
2492 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
2493 "3010 Run link diag test mailbox failed with "
2494 "mbx_status x%x status x%x, add_status x%x\n",
2495 mbxstatus, shdr_status, shdr_add_status);
2498 diag_status_reply = (struct diag_status *)
2499 bsg_reply->reply_data.vendor_reply.vendor_rsp;
2501 if (job->reply_len <
2502 sizeof(struct fc_bsg_request) + sizeof(struct diag_status)) {
2503 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2504 "3012 Received Run link diag test reply "
2505 "below minimum size (%d): reply_len:%d\n",
2506 (int)(sizeof(struct fc_bsg_request) +
2507 sizeof(struct diag_status)),
2513 diag_status_reply->mbox_status = mbxstatus;
2514 diag_status_reply->shdr_status = shdr_status;
2515 diag_status_reply->shdr_add_status = shdr_add_status;
2517 link_diag_test_exit:
2518 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
2521 mempool_free(pmboxq, phba->mbox_mem_pool);
2523 lpfc_bsg_diag_mode_exit(phba);
2526 /* make error code available to userspace */
2527 bsg_reply->result = rc;
2528 /* complete the job back to userspace if no error */
2530 bsg_job_done(job, bsg_reply->result,
2531 bsg_reply->reply_payload_rcv_len);
2536 * lpfcdiag_loop_self_reg - obtains a remote port login id
2537 * @phba: Pointer to HBA context object
2538 * @rpi: Pointer to a remote port login id
2540 * This function obtains a remote port login id so the diag loopback test
2541 * can send and receive its own unsolicited CT command.
2543 static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi)
2546 struct lpfc_dmabuf *dmabuff;
2549 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2553 if (phba->sli_rev < LPFC_SLI_REV4)
2554 status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID,
2555 (uint8_t *)&phba->pport->fc_sparam,
2558 *rpi = lpfc_sli4_alloc_rpi(phba);
2559 if (*rpi == LPFC_RPI_ALLOC_ERROR) {
2560 mempool_free(mbox, phba->mbox_mem_pool);
2563 status = lpfc_reg_rpi(phba, phba->pport->vpi,
2564 phba->pport->fc_myDID,
2565 (uint8_t *)&phba->pport->fc_sparam,
2570 mempool_free(mbox, phba->mbox_mem_pool);
2571 if (phba->sli_rev == LPFC_SLI_REV4)
2572 lpfc_sli4_free_rpi(phba, *rpi);
2576 dmabuff = (struct lpfc_dmabuf *)mbox->ctx_buf;
2577 mbox->ctx_buf = NULL;
2578 mbox->ctx_ndlp = NULL;
2579 status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
2581 if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
2582 lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
2584 if (status != MBX_TIMEOUT)
2585 mempool_free(mbox, phba->mbox_mem_pool);
2586 if (phba->sli_rev == LPFC_SLI_REV4)
2587 lpfc_sli4_free_rpi(phba, *rpi);
2591 if (phba->sli_rev < LPFC_SLI_REV4)
2592 *rpi = mbox->u.mb.un.varWords[0];
2594 lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
2596 mempool_free(mbox, phba->mbox_mem_pool);
2601 * lpfcdiag_loop_self_unreg - unregs from the rpi
2602 * @phba: Pointer to HBA context object
2603 * @rpi: Remote port login id
2605 * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg
2607 static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi)
2612 /* Allocate mboxq structure */
2613 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2617 if (phba->sli_rev < LPFC_SLI_REV4)
2618 lpfc_unreg_login(phba, 0, rpi, mbox);
2620 lpfc_unreg_login(phba, phba->pport->vpi,
2621 phba->sli4_hba.rpi_ids[rpi], mbox);
2623 status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
2625 if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
2626 if (status != MBX_TIMEOUT)
2627 mempool_free(mbox, phba->mbox_mem_pool);
2630 mempool_free(mbox, phba->mbox_mem_pool);
2631 if (phba->sli_rev == LPFC_SLI_REV4)
2632 lpfc_sli4_free_rpi(phba, rpi);
2637 * lpfcdiag_loop_get_xri - obtains the transmit and receive ids
2638 * @phba: Pointer to HBA context object
2639 * @rpi: Remote port login id
2640 * @txxri: Pointer to transmit exchange id
2641 * @rxxri: Pointer to response exchabge id
2643 * This function obtains the transmit and receive ids required to send
2644 * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp
2645 * flags are used to the unsolicted response handler is able to process
2646 * the ct command sent on the same port.
2648 static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi,
2649 uint16_t *txxri, uint16_t * rxxri)
2651 struct lpfc_bsg_event *evt;
2652 struct lpfc_iocbq *cmdiocbq, *rspiocbq;
2654 struct lpfc_dmabuf *dmabuf;
2655 struct ulp_bde64 *bpl = NULL;
2656 struct lpfc_sli_ct_request *ctreq = NULL;
2659 int iocb_stat = IOCB_SUCCESS;
2660 unsigned long flags;
2664 evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
2665 SLI_CT_ELX_LOOPBACK);
2669 spin_lock_irqsave(&phba->ct_ev_lock, flags);
2670 list_add(&evt->node, &phba->ct_ev_waiters);
2671 lpfc_bsg_event_ref(evt);
2672 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
2674 cmdiocbq = lpfc_sli_get_iocbq(phba);
2675 rspiocbq = lpfc_sli_get_iocbq(phba);
2677 dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2679 dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys);
2681 INIT_LIST_HEAD(&dmabuf->list);
2682 bpl = (struct ulp_bde64 *) dmabuf->virt;
2683 memset(bpl, 0, sizeof(*bpl));
2684 ctreq = (struct lpfc_sli_ct_request *)(bpl + 1);
2686 le32_to_cpu(putPaddrHigh(dmabuf->phys +
2689 le32_to_cpu(putPaddrLow(dmabuf->phys +
2691 bpl->tus.f.bdeFlags = 0;
2692 bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ;
2693 bpl->tus.w = le32_to_cpu(bpl->tus.w);
2697 if (cmdiocbq == NULL || rspiocbq == NULL ||
2698 dmabuf == NULL || bpl == NULL || ctreq == NULL ||
2699 dmabuf->virt == NULL) {
2701 goto err_get_xri_exit;
2704 cmd = &cmdiocbq->iocb;
2705 rsp = &rspiocbq->iocb;
2707 memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
2709 ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
2710 ctreq->RevisionId.bits.InId = 0;
2711 ctreq->FsType = SLI_CT_ELX_LOOPBACK;
2712 ctreq->FsSubType = 0;
2713 ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP;
2714 ctreq->CommandResponse.bits.Size = 0;
2717 cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys);
2718 cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys);
2719 cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
2720 cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl);
2722 cmd->un.xseq64.w5.hcsw.Fctl = LA;
2723 cmd->un.xseq64.w5.hcsw.Dfctl = 0;
2724 cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
2725 cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
2727 cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR;
2728 cmd->ulpBdeCount = 1;
2730 cmd->ulpClass = CLASS3;
2731 cmd->ulpContext = rpi;
2733 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
2734 cmdiocbq->vport = phba->pport;
2735 cmdiocbq->iocb_cmpl = NULL;
2737 iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
2739 (phba->fc_ratov * 2)
2740 + LPFC_DRVR_TIMEOUT);
2741 if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOSTAT_SUCCESS)) {
2743 goto err_get_xri_exit;
2745 *txxri = rsp->ulpContext;
2748 evt->wait_time_stamp = jiffies;
2749 time_left = wait_event_interruptible_timeout(
2750 evt->wq, !list_empty(&evt->events_to_see),
2751 msecs_to_jiffies(1000 *
2752 ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
2753 if (list_empty(&evt->events_to_see))
2754 ret_val = (time_left) ? -EINTR : -ETIMEDOUT;
2756 spin_lock_irqsave(&phba->ct_ev_lock, flags);
2757 list_move(evt->events_to_see.prev, &evt->events_to_get);
2758 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
2759 *rxxri = (list_entry(evt->events_to_get.prev,
2760 typeof(struct event_data),
2766 spin_lock_irqsave(&phba->ct_ev_lock, flags);
2767 lpfc_bsg_event_unref(evt); /* release ref */
2768 lpfc_bsg_event_unref(evt); /* delete */
2769 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
2773 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2777 if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT))
2778 lpfc_sli_release_iocbq(phba, cmdiocbq);
2780 lpfc_sli_release_iocbq(phba, rspiocbq);
2785 * lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers
2786 * @phba: Pointer to HBA context object
2788 * This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and
2789 * returns the pointer to the buffer.
2791 static struct lpfc_dmabuf *
2792 lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba)
2794 struct lpfc_dmabuf *dmabuf;
2795 struct pci_dev *pcidev = phba->pcidev;
2797 /* allocate dma buffer struct */
2798 dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2802 INIT_LIST_HEAD(&dmabuf->list);
2804 /* now, allocate dma buffer */
2805 dmabuf->virt = dma_alloc_coherent(&pcidev->dev, BSG_MBOX_SIZE,
2806 &(dmabuf->phys), GFP_KERNEL);
2808 if (!dmabuf->virt) {
2817 * lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer
2818 * @phba: Pointer to HBA context object.
2819 * @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor.
2821 * This routine just simply frees a dma buffer and its associated buffer
2822 * descriptor referred by @dmabuf.
2825 lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf)
2827 struct pci_dev *pcidev = phba->pcidev;
2833 dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE,
2834 dmabuf->virt, dmabuf->phys);
2840 * lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers
2841 * @phba: Pointer to HBA context object.
2842 * @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs.
2844 * This routine just simply frees all dma buffers and their associated buffer
2845 * descriptors referred by @dmabuf_list.
2848 lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba,
2849 struct list_head *dmabuf_list)
2851 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
2853 if (list_empty(dmabuf_list))
2856 list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) {
2857 list_del_init(&dmabuf->list);
2858 lpfc_bsg_dma_page_free(phba, dmabuf);
2864 * diag_cmd_data_alloc - fills in a bde struct with dma buffers
2865 * @phba: Pointer to HBA context object
2866 * @bpl: Pointer to 64 bit bde structure
2867 * @size: Number of bytes to process
2868 * @nocopydata: Flag to copy user data into the allocated buffer
2870 * This function allocates page size buffers and populates an lpfc_dmabufext.
2871 * If allowed the user data pointed to with indataptr is copied into the kernel
2872 * memory. The chained list of page size buffers is returned.
2874 static struct lpfc_dmabufext *
2875 diag_cmd_data_alloc(struct lpfc_hba *phba,
2876 struct ulp_bde64 *bpl, uint32_t size,
2879 struct lpfc_dmabufext *mlist = NULL;
2880 struct lpfc_dmabufext *dmp;
2881 int cnt, offset = 0, i = 0;
2882 struct pci_dev *pcidev;
2884 pcidev = phba->pcidev;
2887 /* We get chunks of 4K */
2888 if (size > BUF_SZ_4K)
2893 /* allocate struct lpfc_dmabufext buffer header */
2894 dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL);
2898 INIT_LIST_HEAD(&dmp->dma.list);
2900 /* Queue it to a linked list */
2902 list_add_tail(&dmp->dma.list, &mlist->dma.list);
2906 /* allocate buffer */
2907 dmp->dma.virt = dma_alloc_coherent(&pcidev->dev,
2918 bpl->tus.f.bdeFlags = 0;
2920 memset((uint8_t *)dmp->dma.virt, 0, cnt);
2921 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
2924 /* build buffer ptr list for IOCB */
2925 bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys));
2926 bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys));
2927 bpl->tus.f.bdeSize = (ushort) cnt;
2928 bpl->tus.w = le32_to_cpu(bpl->tus.w);
2941 diag_cmd_data_free(phba, mlist);
2946 * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd
2947 * @phba: Pointer to HBA context object
2948 * @rxxri: Receive exchange id
2949 * @len: Number of data bytes
2951 * This function allocates and posts a data buffer of sufficient size to receive
2952 * an unsolicted CT command.
2954 static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri,
2957 struct lpfc_sli_ring *pring;
2958 struct lpfc_iocbq *cmdiocbq;
2960 struct list_head head, *curr, *next;
2961 struct lpfc_dmabuf *rxbmp;
2962 struct lpfc_dmabuf *dmp;
2963 struct lpfc_dmabuf *mp[2] = {NULL, NULL};
2964 struct ulp_bde64 *rxbpl = NULL;
2966 struct lpfc_dmabufext *rxbuffer = NULL;
2971 pring = lpfc_phba_elsring(phba);
2973 cmdiocbq = lpfc_sli_get_iocbq(phba);
2974 rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2975 if (rxbmp != NULL) {
2976 rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys);
2978 INIT_LIST_HEAD(&rxbmp->list);
2979 rxbpl = (struct ulp_bde64 *) rxbmp->virt;
2980 rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0);
2984 if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer || !pring) {
2986 goto err_post_rxbufs_exit;
2989 /* Queue buffers for the receive exchange */
2990 num_bde = (uint32_t)rxbuffer->flag;
2991 dmp = &rxbuffer->dma;
2993 cmd = &cmdiocbq->iocb;
2996 INIT_LIST_HEAD(&head);
2997 list_add_tail(&head, &dmp->list);
2998 list_for_each_safe(curr, next, &head) {
2999 mp[i] = list_entry(curr, struct lpfc_dmabuf, list);
3002 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
3003 mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba);
3004 cmd->un.quexri64cx.buff.bde.addrHigh =
3005 putPaddrHigh(mp[i]->phys);
3006 cmd->un.quexri64cx.buff.bde.addrLow =
3007 putPaddrLow(mp[i]->phys);
3008 cmd->un.quexri64cx.buff.bde.tus.f.bdeSize =
3009 ((struct lpfc_dmabufext *)mp[i])->size;
3010 cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag;
3011 cmd->ulpCommand = CMD_QUE_XRI64_CX;
3014 cmd->ulpBdeCount = 1;
3015 cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0;
3018 cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys);
3019 cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys);
3020 cmd->un.cont64[i].tus.f.bdeSize =
3021 ((struct lpfc_dmabufext *)mp[i])->size;
3022 cmd->ulpBdeCount = ++i;
3024 if ((--num_bde > 0) && (i < 2))
3027 cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX;
3031 cmd->ulpClass = CLASS3;
3032 cmd->ulpContext = rxxri;
3034 iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
3036 if (iocb_stat == IOCB_ERROR) {
3037 diag_cmd_data_free(phba,
3038 (struct lpfc_dmabufext *)mp[0]);
3040 diag_cmd_data_free(phba,
3041 (struct lpfc_dmabufext *)mp[1]);
3042 dmp = list_entry(next, struct lpfc_dmabuf, list);
3044 goto err_post_rxbufs_exit;
3047 lpfc_sli_ringpostbuf_put(phba, pring, mp[0]);
3049 lpfc_sli_ringpostbuf_put(phba, pring, mp[1]);
3053 /* The iocb was freed by lpfc_sli_issue_iocb */
3054 cmdiocbq = lpfc_sli_get_iocbq(phba);
3056 dmp = list_entry(next, struct lpfc_dmabuf, list);
3058 goto err_post_rxbufs_exit;
3061 cmd = &cmdiocbq->iocb;
3066 err_post_rxbufs_exit:
3070 lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys);
3075 lpfc_sli_release_iocbq(phba, cmdiocbq);
3080 * lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself
3081 * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job
3083 * This function receives a user data buffer to be transmitted and received on
3084 * the same port, the link must be up and in loopback mode prior
3086 * 1. A kernel buffer is allocated to copy the user data into.
3087 * 2. The port registers with "itself".
3088 * 3. The transmit and receive exchange ids are obtained.
3089 * 4. The receive exchange id is posted.
3090 * 5. A new els loopback event is created.
3091 * 6. The command and response iocbs are allocated.
3092 * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback.
3094 * This function is meant to be called n times while the port is in loopback
3095 * so it is the apps responsibility to issue a reset to take the port out
3099 lpfc_bsg_diag_loopback_run(struct bsg_job *job)
3101 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
3102 struct fc_bsg_reply *bsg_reply = job->reply;
3103 struct lpfc_hba *phba = vport->phba;
3104 struct lpfc_bsg_event *evt;
3105 struct event_data *evdat;
3106 struct lpfc_sli *psli = &phba->sli;
3109 size_t segment_len = 0, segment_offset = 0, current_offset = 0;
3111 struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL;
3112 IOCB_t *cmd, *rsp = NULL;
3113 struct lpfc_sli_ct_request *ctreq;
3114 struct lpfc_dmabuf *txbmp;
3115 struct ulp_bde64 *txbpl = NULL;
3116 struct lpfc_dmabufext *txbuffer = NULL;
3117 struct list_head head;
3118 struct lpfc_dmabuf *curr;
3119 uint16_t txxri = 0, rxxri;
3121 uint8_t *ptr = NULL, *rx_databuf = NULL;
3124 int iocb_stat = IOCB_SUCCESS;
3125 unsigned long flags;
3126 void *dataout = NULL;
3129 /* in case no data is returned return just the return code */
3130 bsg_reply->reply_payload_rcv_len = 0;
3132 if (job->request_len <
3133 sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) {
3134 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3135 "2739 Received DIAG TEST request below minimum "
3138 goto loopback_test_exit;
3141 if (job->request_payload.payload_len !=
3142 job->reply_payload.payload_len) {
3144 goto loopback_test_exit;
3147 if ((phba->link_state == LPFC_HBA_ERROR) ||
3148 (psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
3149 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
3151 goto loopback_test_exit;
3154 if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) {
3156 goto loopback_test_exit;
3159 size = job->request_payload.payload_len;
3160 full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */
3162 if ((size == 0) || (size > 80 * BUF_SZ_4K)) {
3164 goto loopback_test_exit;
3167 if (full_size >= BUF_SZ_4K) {
3169 * Allocate memory for ioctl data. If buffer is bigger than 64k,
3170 * then we allocate 64k and re-use that buffer over and over to
3171 * xfer the whole block. This is because Linux kernel has a
3172 * problem allocating more than 120k of kernel space memory. Saw
3173 * problem with GET_FCPTARGETMAPPING...
3175 if (size <= (64 * 1024))
3176 total_mem = full_size;
3178 total_mem = 64 * 1024;
3180 /* Allocate memory for ioctl data */
3181 total_mem = BUF_SZ_4K;
3183 dataout = kmalloc(total_mem, GFP_KERNEL);
3184 if (dataout == NULL) {
3186 goto loopback_test_exit;
3190 ptr += ELX_LOOPBACK_HEADER_SZ;
3191 sg_copy_to_buffer(job->request_payload.sg_list,
3192 job->request_payload.sg_cnt,
3194 rc = lpfcdiag_loop_self_reg(phba, &rpi);
3196 goto loopback_test_exit;
3198 if (phba->sli_rev < LPFC_SLI_REV4) {
3199 rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri);
3201 lpfcdiag_loop_self_unreg(phba, rpi);
3202 goto loopback_test_exit;
3205 rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size);
3207 lpfcdiag_loop_self_unreg(phba, rpi);
3208 goto loopback_test_exit;
3211 evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
3212 SLI_CT_ELX_LOOPBACK);
3214 lpfcdiag_loop_self_unreg(phba, rpi);
3216 goto loopback_test_exit;
3219 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3220 list_add(&evt->node, &phba->ct_ev_waiters);
3221 lpfc_bsg_event_ref(evt);
3222 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3224 cmdiocbq = lpfc_sli_get_iocbq(phba);
3225 if (phba->sli_rev < LPFC_SLI_REV4)
3226 rspiocbq = lpfc_sli_get_iocbq(phba);
3227 txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3230 txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys);
3232 INIT_LIST_HEAD(&txbmp->list);
3233 txbpl = (struct ulp_bde64 *) txbmp->virt;
3234 txbuffer = diag_cmd_data_alloc(phba,
3235 txbpl, full_size, 0);
3239 if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) {
3241 goto err_loopback_test_exit;
3243 if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) {
3245 goto err_loopback_test_exit;
3248 cmd = &cmdiocbq->iocb;
3249 if (phba->sli_rev < LPFC_SLI_REV4)
3250 rsp = &rspiocbq->iocb;
3252 INIT_LIST_HEAD(&head);
3253 list_add_tail(&head, &txbuffer->dma.list);
3254 list_for_each_entry(curr, &head, list) {
3255 segment_len = ((struct lpfc_dmabufext *)curr)->size;
3256 if (current_offset == 0) {
3258 memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
3259 ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
3260 ctreq->RevisionId.bits.InId = 0;
3261 ctreq->FsType = SLI_CT_ELX_LOOPBACK;
3262 ctreq->FsSubType = 0;
3263 ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA;
3264 ctreq->CommandResponse.bits.Size = size;
3265 segment_offset = ELX_LOOPBACK_HEADER_SZ;
3269 BUG_ON(segment_offset >= segment_len);
3270 memcpy(curr->virt + segment_offset,
3271 ptr + current_offset,
3272 segment_len - segment_offset);
3274 current_offset += segment_len - segment_offset;
3275 BUG_ON(current_offset > size);
3279 /* Build the XMIT_SEQUENCE iocb */
3280 num_bde = (uint32_t)txbuffer->flag;
3282 cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys);
3283 cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys);
3284 cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
3285 cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64));
3287 cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
3288 cmd->un.xseq64.w5.hcsw.Dfctl = 0;
3289 cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
3290 cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
3292 cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
3293 cmd->ulpBdeCount = 1;
3295 cmd->ulpClass = CLASS3;
3297 if (phba->sli_rev < LPFC_SLI_REV4) {
3298 cmd->ulpContext = txxri;
3300 cmd->un.xseq64.bdl.ulpIoTag32 = 0;
3301 cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi];
3302 cmdiocbq->context3 = txbmp;
3303 cmdiocbq->sli4_xritag = NO_XRI;
3304 cmd->unsli3.rcvsli3.ox_id = 0xffff;
3306 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
3307 cmdiocbq->iocb_flag |= LPFC_IO_LOOPBACK;
3308 cmdiocbq->vport = phba->pport;
3309 cmdiocbq->iocb_cmpl = NULL;
3310 iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
3311 rspiocbq, (phba->fc_ratov * 2) +
3314 if ((iocb_stat != IOCB_SUCCESS) ||
3315 ((phba->sli_rev < LPFC_SLI_REV4) &&
3316 (rsp->ulpStatus != IOSTAT_SUCCESS))) {
3317 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3318 "3126 Failed loopback test issue iocb: "
3319 "iocb_stat:x%x\n", iocb_stat);
3321 goto err_loopback_test_exit;
3325 time_left = wait_event_interruptible_timeout(
3326 evt->wq, !list_empty(&evt->events_to_see),
3327 msecs_to_jiffies(1000 *
3328 ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
3330 if (list_empty(&evt->events_to_see)) {
3331 rc = (time_left) ? -EINTR : -ETIMEDOUT;
3332 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3333 "3125 Not receiving unsolicited event, "
3336 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3337 list_move(evt->events_to_see.prev, &evt->events_to_get);
3338 evdat = list_entry(evt->events_to_get.prev,
3339 typeof(*evdat), node);
3340 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3341 rx_databuf = evdat->data;
3342 if (evdat->len != full_size) {
3343 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3344 "1603 Loopback test did not receive expected "
3345 "data length. actual length 0x%x expected "
3347 evdat->len, full_size);
3349 } else if (rx_databuf == NULL)
3353 /* skip over elx loopback header */
3354 rx_databuf += ELX_LOOPBACK_HEADER_SZ;
3355 bsg_reply->reply_payload_rcv_len =
3356 sg_copy_from_buffer(job->reply_payload.sg_list,
3357 job->reply_payload.sg_cnt,
3359 bsg_reply->reply_payload_rcv_len = size;
3363 err_loopback_test_exit:
3364 lpfcdiag_loop_self_unreg(phba, rpi);
3366 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3367 lpfc_bsg_event_unref(evt); /* release ref */
3368 lpfc_bsg_event_unref(evt); /* delete */
3369 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3371 if ((cmdiocbq != NULL) && (iocb_stat != IOCB_TIMEDOUT))
3372 lpfc_sli_release_iocbq(phba, cmdiocbq);
3374 if (rspiocbq != NULL)
3375 lpfc_sli_release_iocbq(phba, rspiocbq);
3377 if (txbmp != NULL) {
3378 if (txbpl != NULL) {
3379 if (txbuffer != NULL)
3380 diag_cmd_data_free(phba, txbuffer);
3381 lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys);
3388 /* make error code available to userspace */
3389 bsg_reply->result = rc;
3390 job->dd_data = NULL;
3391 /* complete the job back to userspace if no error */
3392 if (rc == IOCB_SUCCESS)
3393 bsg_job_done(job, bsg_reply->result,
3394 bsg_reply->reply_payload_rcv_len);
3399 * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command
3400 * @job: GET_DFC_REV fc_bsg_job
3403 lpfc_bsg_get_dfc_rev(struct bsg_job *job)
3405 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
3406 struct fc_bsg_reply *bsg_reply = job->reply;
3407 struct lpfc_hba *phba = vport->phba;
3408 struct get_mgmt_rev_reply *event_reply;
3411 if (job->request_len <
3412 sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) {
3413 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3414 "2740 Received GET_DFC_REV request below "
3420 event_reply = (struct get_mgmt_rev_reply *)
3421 bsg_reply->reply_data.vendor_reply.vendor_rsp;
3423 if (job->reply_len <
3424 sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) {
3425 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3426 "2741 Received GET_DFC_REV reply below "
3432 event_reply->info.a_Major = MANAGEMENT_MAJOR_REV;
3433 event_reply->info.a_Minor = MANAGEMENT_MINOR_REV;
3435 bsg_reply->result = rc;
3437 bsg_job_done(job, bsg_reply->result,
3438 bsg_reply->reply_payload_rcv_len);
3443 * lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler
3444 * @phba: Pointer to HBA context object.
3445 * @pmboxq: Pointer to mailbox command.
3447 * This is completion handler function for mailbox commands issued from
3448 * lpfc_bsg_issue_mbox function. This function is called by the
3449 * mailbox event handler function with no lock held. This function
3450 * will wake up thread waiting on the wait queue pointed by context1
3454 lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3456 struct bsg_job_data *dd_data;
3457 struct fc_bsg_reply *bsg_reply;
3458 struct bsg_job *job;
3460 unsigned long flags;
3461 uint8_t *pmb, *pmb_buf;
3463 dd_data = pmboxq->ctx_ndlp;
3466 * The outgoing buffer is readily referred from the dma buffer,
3467 * just need to get header part from mailboxq structure.
3469 pmb = (uint8_t *)&pmboxq->u.mb;
3470 pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
3471 memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
3473 /* Determine if job has been aborted */
3475 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3476 job = dd_data->set_job;
3478 /* Prevent timeout handling from trying to abort job */
3479 job->dd_data = NULL;
3481 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3483 /* Copy the mailbox data to the job if it is still active */
3486 bsg_reply = job->reply;
3487 size = job->reply_payload.payload_len;
3488 bsg_reply->reply_payload_rcv_len =
3489 sg_copy_from_buffer(job->reply_payload.sg_list,
3490 job->reply_payload.sg_cnt,
3494 dd_data->set_job = NULL;
3495 mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool);
3496 lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers);
3499 /* Complete the job if the job is still active */
3502 bsg_reply->result = 0;
3503 bsg_job_done(job, bsg_reply->result,
3504 bsg_reply->reply_payload_rcv_len);
3510 * lpfc_bsg_check_cmd_access - test for a supported mailbox command
3511 * @phba: Pointer to HBA context object.
3512 * @mb: Pointer to a mailbox object.
3513 * @vport: Pointer to a vport object.
3515 * Some commands require the port to be offline, some may not be called from
3518 static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba,
3519 MAILBOX_t *mb, struct lpfc_vport *vport)
3521 /* return negative error values for bsg job */
3522 switch (mb->mbxCommand) {
3526 case MBX_CONFIG_LINK:
3527 case MBX_CONFIG_RING:
3528 case MBX_RESET_RING:
3529 case MBX_UNREG_LOGIN:
3531 case MBX_DUMP_CONTEXT:
3535 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3536 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3537 "2743 Command 0x%x is illegal in on-line "
3543 case MBX_WRITE_VPARMS:
3546 case MBX_READ_CONFIG:
3547 case MBX_READ_RCONFIG:
3548 case MBX_READ_STATUS:
3551 case MBX_READ_LNK_STAT:
3552 case MBX_DUMP_MEMORY:
3554 case MBX_UPDATE_CFG:
3555 case MBX_KILL_BOARD:
3556 case MBX_READ_TOPOLOGY:
3558 case MBX_LOAD_EXP_ROM:
3560 case MBX_DEL_LD_ENTRY:
3563 case MBX_SLI4_CONFIG:
3564 case MBX_READ_EVENT_LOG:
3565 case MBX_READ_EVENT_LOG_STATUS:
3566 case MBX_WRITE_EVENT_LOG:
3567 case MBX_PORT_CAPABILITIES:
3568 case MBX_PORT_IOV_CONTROL:
3569 case MBX_RUN_BIU_DIAG64:
3571 case MBX_SET_VARIABLE:
3572 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3573 "1226 mbox: set_variable 0x%x, 0x%x\n",
3575 mb->un.varWords[1]);
3576 if ((mb->un.varWords[0] == SETVAR_MLOMNT)
3577 && (mb->un.varWords[1] == 1)) {
3578 phba->wait_4_mlo_maint_flg = 1;
3579 } else if (mb->un.varWords[0] == SETVAR_MLORST) {
3580 spin_lock_irq(&phba->hbalock);
3581 phba->link_flag &= ~LS_LOOPBACK_MODE;
3582 spin_unlock_irq(&phba->hbalock);
3583 phba->fc_topology = LPFC_TOPOLOGY_PT_PT;
3586 case MBX_READ_SPARM64:
3588 case MBX_REG_LOGIN64:
3589 case MBX_CONFIG_PORT:
3590 case MBX_RUN_BIU_DIAG:
3592 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3593 "2742 Unknown Command 0x%x\n",
3602 * lpfc_bsg_mbox_ext_cleanup - clean up context of multi-buffer mbox session
3603 * @phba: Pointer to HBA context object.
3605 * This is routine clean up and reset BSG handling of multi-buffer mbox
3609 lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba)
3611 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE)
3614 /* free all memory, including dma buffers */
3615 lpfc_bsg_dma_page_list_free(phba,
3616 &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3617 lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf);
3618 /* multi-buffer write mailbox command pass-through complete */
3619 memset((char *)&phba->mbox_ext_buf_ctx, 0,
3620 sizeof(struct lpfc_mbox_ext_buf_ctx));
3621 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3627 * lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl
3628 * @phba: Pointer to HBA context object.
3629 * @pmboxq: Pointer to mailbox command.
3631 * This is routine handles BSG job for mailbox commands completions with
3632 * multiple external buffers.
3634 static struct bsg_job *
3635 lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3637 struct bsg_job_data *dd_data;
3638 struct bsg_job *job;
3639 struct fc_bsg_reply *bsg_reply;
3640 uint8_t *pmb, *pmb_buf;
3641 unsigned long flags;
3644 struct lpfc_dmabuf *dmabuf;
3645 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3648 dd_data = pmboxq->ctx_buf;
3650 /* Determine if job has been aborted */
3651 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3652 job = dd_data->set_job;
3654 bsg_reply = job->reply;
3655 /* Prevent timeout handling from trying to abort job */
3656 job->dd_data = NULL;
3658 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3661 * The outgoing buffer is readily referred from the dma buffer,
3662 * just need to get header part from mailboxq structure.
3665 pmb = (uint8_t *)&pmboxq->u.mb;
3666 pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
3667 /* Copy the byte swapped response mailbox back to the user */
3668 memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
3669 /* if there is any non-embedded extended data copy that too */
3670 dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf;
3671 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
3672 if (!bsg_bf_get(lpfc_mbox_hdr_emb,
3673 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
3674 pmbx = (uint8_t *)dmabuf->virt;
3675 /* byte swap the extended data following the mailbox command */
3676 lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
3677 &pmbx[sizeof(MAILBOX_t)],
3678 sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len);
3681 /* Complete the job if the job is still active */
3684 size = job->reply_payload.payload_len;
3685 bsg_reply->reply_payload_rcv_len =
3686 sg_copy_from_buffer(job->reply_payload.sg_list,
3687 job->reply_payload.sg_cnt,
3690 /* result for successful */
3691 bsg_reply->result = 0;
3693 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3694 "2937 SLI_CONFIG ext-buffer mailbox command "
3695 "(x%x/x%x) complete bsg job done, bsize:%d\n",
3696 phba->mbox_ext_buf_ctx.nembType,
3697 phba->mbox_ext_buf_ctx.mboxType, size);
3698 lpfc_idiag_mbxacc_dump_bsg_mbox(phba,
3699 phba->mbox_ext_buf_ctx.nembType,
3700 phba->mbox_ext_buf_ctx.mboxType,
3701 dma_ebuf, sta_pos_addr,
3702 phba->mbox_ext_buf_ctx.mbx_dmabuf, 0);
3704 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3705 "2938 SLI_CONFIG ext-buffer mailbox "
3706 "command (x%x/x%x) failure, rc:x%x\n",
3707 phba->mbox_ext_buf_ctx.nembType,
3708 phba->mbox_ext_buf_ctx.mboxType, rc);
3713 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE;
3719 * lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox
3720 * @phba: Pointer to HBA context object.
3721 * @pmboxq: Pointer to mailbox command.
3723 * This is completion handler function for mailbox read commands with multiple
3727 lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3729 struct bsg_job *job;
3730 struct fc_bsg_reply *bsg_reply;
3732 job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
3734 /* handle the BSG job with mailbox command */
3736 pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
3738 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3739 "2939 SLI_CONFIG ext-buffer rd mailbox command "
3740 "complete, ctxState:x%x, mbxStatus:x%x\n",
3741 phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
3743 if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1)
3744 lpfc_bsg_mbox_ext_session_reset(phba);
3746 /* free base driver mailbox structure memory */
3747 mempool_free(pmboxq, phba->mbox_mem_pool);
3749 /* if the job is still active, call job done */
3751 bsg_reply = job->reply;
3752 bsg_job_done(job, bsg_reply->result,
3753 bsg_reply->reply_payload_rcv_len);
3759 * lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox
3760 * @phba: Pointer to HBA context object.
3761 * @pmboxq: Pointer to mailbox command.
3763 * This is completion handler function for mailbox write commands with multiple
3767 lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3769 struct bsg_job *job;
3770 struct fc_bsg_reply *bsg_reply;
3772 job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
3774 /* handle the BSG job with the mailbox command */
3776 pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
3778 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3779 "2940 SLI_CONFIG ext-buffer wr mailbox command "
3780 "complete, ctxState:x%x, mbxStatus:x%x\n",
3781 phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
3783 /* free all memory, including dma buffers */
3784 mempool_free(pmboxq, phba->mbox_mem_pool);
3785 lpfc_bsg_mbox_ext_session_reset(phba);
3787 /* if the job is still active, call job done */
3789 bsg_reply = job->reply;
3790 bsg_job_done(job, bsg_reply->result,
3791 bsg_reply->reply_payload_rcv_len);
3798 lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp,
3799 uint32_t index, struct lpfc_dmabuf *mbx_dmabuf,
3800 struct lpfc_dmabuf *ext_dmabuf)
3802 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3804 /* pointer to the start of mailbox command */
3805 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt;
3807 if (nemb_tp == nemb_mse) {
3809 sli_cfg_mbx->un.sli_config_emb0_subsys.
3811 putPaddrHigh(mbx_dmabuf->phys +
3813 sli_cfg_mbx->un.sli_config_emb0_subsys.
3815 putPaddrLow(mbx_dmabuf->phys +
3817 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3818 "2943 SLI_CONFIG(mse)[%d], "
3819 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3821 sli_cfg_mbx->un.sli_config_emb0_subsys.
3823 sli_cfg_mbx->un.sli_config_emb0_subsys.
3825 sli_cfg_mbx->un.sli_config_emb0_subsys.
3828 sli_cfg_mbx->un.sli_config_emb0_subsys.
3830 putPaddrHigh(ext_dmabuf->phys);
3831 sli_cfg_mbx->un.sli_config_emb0_subsys.
3833 putPaddrLow(ext_dmabuf->phys);
3834 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3835 "2944 SLI_CONFIG(mse)[%d], "
3836 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3838 sli_cfg_mbx->un.sli_config_emb0_subsys.
3840 sli_cfg_mbx->un.sli_config_emb0_subsys.
3842 sli_cfg_mbx->un.sli_config_emb0_subsys.
3847 sli_cfg_mbx->un.sli_config_emb1_subsys.
3849 putPaddrHigh(mbx_dmabuf->phys +
3851 sli_cfg_mbx->un.sli_config_emb1_subsys.
3853 putPaddrLow(mbx_dmabuf->phys +
3855 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3856 "3007 SLI_CONFIG(hbd)[%d], "
3857 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3859 bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
3861 sli_config_emb1_subsys.hbd[index]),
3862 sli_cfg_mbx->un.sli_config_emb1_subsys.
3864 sli_cfg_mbx->un.sli_config_emb1_subsys.
3868 sli_cfg_mbx->un.sli_config_emb1_subsys.
3870 putPaddrHigh(ext_dmabuf->phys);
3871 sli_cfg_mbx->un.sli_config_emb1_subsys.
3873 putPaddrLow(ext_dmabuf->phys);
3874 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3875 "3008 SLI_CONFIG(hbd)[%d], "
3876 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3878 bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
3880 sli_config_emb1_subsys.hbd[index]),
3881 sli_cfg_mbx->un.sli_config_emb1_subsys.
3883 sli_cfg_mbx->un.sli_config_emb1_subsys.
3891 * lpfc_bsg_sli_cfg_mse_read_cmd_ext - sli_config non-embedded mailbox cmd read
3892 * @phba: Pointer to HBA context object.
3893 * @mb: Pointer to a BSG mailbox object.
3894 * @nemb_tp: Enumerate of non-embedded mailbox command type.
3895 * @dmabuff: Pointer to a DMA buffer descriptor.
3897 * This routine performs SLI_CONFIG (0x9B) read mailbox command operation with
3898 * non-embedded external bufffers.
3901 lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct bsg_job *job,
3902 enum nemb_type nemb_tp,
3903 struct lpfc_dmabuf *dmabuf)
3905 struct fc_bsg_request *bsg_request = job->request;
3906 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3907 struct dfc_mbox_req *mbox_req;
3908 struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf;
3909 uint32_t ext_buf_cnt, ext_buf_index;
3910 struct lpfc_dmabuf *ext_dmabuf = NULL;
3911 struct bsg_job_data *dd_data = NULL;
3912 LPFC_MBOXQ_t *pmboxq = NULL;
3918 (struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
3920 /* pointer to the start of mailbox command */
3921 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
3923 if (nemb_tp == nemb_mse) {
3924 ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
3925 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
3926 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
3927 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3928 "2945 Handled SLI_CONFIG(mse) rd, "
3929 "ext_buf_cnt(%d) out of range(%d)\n",
3931 LPFC_MBX_SLI_CONFIG_MAX_MSE);
3935 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3936 "2941 Handled SLI_CONFIG(mse) rd, "
3937 "ext_buf_cnt:%d\n", ext_buf_cnt);
3939 /* sanity check on interface type for support */
3940 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
3941 LPFC_SLI_INTF_IF_TYPE_2) {
3945 /* nemb_tp == nemb_hbd */
3946 ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
3947 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
3948 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3949 "2946 Handled SLI_CONFIG(hbd) rd, "
3950 "ext_buf_cnt(%d) out of range(%d)\n",
3952 LPFC_MBX_SLI_CONFIG_MAX_HBD);
3956 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3957 "2942 Handled SLI_CONFIG(hbd) rd, "
3958 "ext_buf_cnt:%d\n", ext_buf_cnt);
3961 /* before dma descriptor setup */
3962 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
3963 sta_pre_addr, dmabuf, ext_buf_cnt);
3965 /* reject non-embedded mailbox command with none external buffer */
3966 if (ext_buf_cnt == 0) {
3969 } else if (ext_buf_cnt > 1) {
3970 /* additional external read buffers */
3971 for (i = 1; i < ext_buf_cnt; i++) {
3972 ext_dmabuf = lpfc_bsg_dma_page_alloc(phba);
3977 list_add_tail(&ext_dmabuf->list,
3978 &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3982 /* bsg tracking structure */
3983 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
3989 /* mailbox command structure for base driver */
3990 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3995 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
3997 /* for the first external buffer */
3998 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
4000 /* for the rest of external buffer descriptors if any */
4001 if (ext_buf_cnt > 1) {
4003 list_for_each_entry_safe(curr_dmabuf, next_dmabuf,
4004 &phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) {
4005 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp,
4006 ext_buf_index, dmabuf,
4012 /* after dma descriptor setup */
4013 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
4014 sta_pos_addr, dmabuf, ext_buf_cnt);
4016 /* construct base driver mbox command */
4017 pmb = &pmboxq->u.mb;
4018 pmbx = (uint8_t *)dmabuf->virt;
4019 memcpy(pmb, pmbx, sizeof(*pmb));
4020 pmb->mbxOwner = OWN_HOST;
4021 pmboxq->vport = phba->pport;
4023 /* multi-buffer handling context */
4024 phba->mbox_ext_buf_ctx.nembType = nemb_tp;
4025 phba->mbox_ext_buf_ctx.mboxType = mbox_rd;
4026 phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
4027 phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
4028 phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
4029 phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
4031 /* callback for multi-buffer read mailbox command */
4032 pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl;
4034 /* context fields to callback function */
4035 pmboxq->ctx_buf = dd_data;
4036 dd_data->type = TYPE_MBOX;
4037 dd_data->set_job = job;
4038 dd_data->context_un.mbox.pmboxq = pmboxq;
4039 dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
4040 job->dd_data = dd_data;
4043 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
4046 * Non-embedded mailbox subcommand data gets byte swapped here because
4047 * the lower level driver code only does the first 64 mailbox words.
4049 if ((!bsg_bf_get(lpfc_mbox_hdr_emb,
4050 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) &&
4051 (nemb_tp == nemb_mse))
4052 lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
4053 &pmbx[sizeof(MAILBOX_t)],
4054 sli_cfg_mbx->un.sli_config_emb0_subsys.
4057 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4058 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
4059 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4060 "2947 Issued SLI_CONFIG ext-buffer "
4061 "mailbox command, rc:x%x\n", rc);
4062 return SLI_CONFIG_HANDLED;
4064 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4065 "2948 Failed to issue SLI_CONFIG ext-buffer "
4066 "mailbox command, rc:x%x\n", rc);
4071 mempool_free(pmboxq, phba->mbox_mem_pool);
4072 lpfc_bsg_dma_page_list_free(phba,
4073 &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4075 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
4080 * lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write
4081 * @phba: Pointer to HBA context object.
4082 * @mb: Pointer to a BSG mailbox object.
4083 * @dmabuff: Pointer to a DMA buffer descriptor.
4085 * This routine performs SLI_CONFIG (0x9B) write mailbox command operation with
4086 * non-embedded external bufffers.
4089 lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct bsg_job *job,
4090 enum nemb_type nemb_tp,
4091 struct lpfc_dmabuf *dmabuf)
4093 struct fc_bsg_request *bsg_request = job->request;
4094 struct fc_bsg_reply *bsg_reply = job->reply;
4095 struct dfc_mbox_req *mbox_req;
4096 struct lpfc_sli_config_mbox *sli_cfg_mbx;
4097 uint32_t ext_buf_cnt;
4098 struct bsg_job_data *dd_data = NULL;
4099 LPFC_MBOXQ_t *pmboxq = NULL;
4102 int rc = SLI_CONFIG_NOT_HANDLED, i;
4105 (struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
4107 /* pointer to the start of mailbox command */
4108 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
4110 if (nemb_tp == nemb_mse) {
4111 ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
4112 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
4113 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
4114 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4115 "2953 Failed SLI_CONFIG(mse) wr, "
4116 "ext_buf_cnt(%d) out of range(%d)\n",
4118 LPFC_MBX_SLI_CONFIG_MAX_MSE);
4121 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4122 "2949 Handled SLI_CONFIG(mse) wr, "
4123 "ext_buf_cnt:%d\n", ext_buf_cnt);
4125 /* sanity check on interface type for support */
4126 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
4127 LPFC_SLI_INTF_IF_TYPE_2)
4129 /* nemb_tp == nemb_hbd */
4130 ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
4131 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
4132 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4133 "2954 Failed SLI_CONFIG(hbd) wr, "
4134 "ext_buf_cnt(%d) out of range(%d)\n",
4136 LPFC_MBX_SLI_CONFIG_MAX_HBD);
4139 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4140 "2950 Handled SLI_CONFIG(hbd) wr, "
4141 "ext_buf_cnt:%d\n", ext_buf_cnt);
4144 /* before dma buffer descriptor setup */
4145 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
4146 sta_pre_addr, dmabuf, ext_buf_cnt);
4148 if (ext_buf_cnt == 0)
4151 /* for the first external buffer */
4152 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
4154 /* after dma descriptor setup */
4155 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
4156 sta_pos_addr, dmabuf, ext_buf_cnt);
4158 /* log for looking forward */
4159 for (i = 1; i < ext_buf_cnt; i++) {
4160 if (nemb_tp == nemb_mse)
4161 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4162 "2951 SLI_CONFIG(mse), buf[%d]-length:%d\n",
4163 i, sli_cfg_mbx->un.sli_config_emb0_subsys.
4166 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4167 "2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n",
4168 i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
4169 &sli_cfg_mbx->un.sli_config_emb1_subsys.
4173 /* multi-buffer handling context */
4174 phba->mbox_ext_buf_ctx.nembType = nemb_tp;
4175 phba->mbox_ext_buf_ctx.mboxType = mbox_wr;
4176 phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
4177 phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
4178 phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
4179 phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
4181 if (ext_buf_cnt == 1) {
4182 /* bsg tracking structure */
4183 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
4189 /* mailbox command structure for base driver */
4190 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4195 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4196 pmb = &pmboxq->u.mb;
4197 mbx = (uint8_t *)dmabuf->virt;
4198 memcpy(pmb, mbx, sizeof(*pmb));
4199 pmb->mbxOwner = OWN_HOST;
4200 pmboxq->vport = phba->pport;
4202 /* callback for multi-buffer read mailbox command */
4203 pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
4205 /* context fields to callback function */
4206 pmboxq->ctx_buf = dd_data;
4207 dd_data->type = TYPE_MBOX;
4208 dd_data->set_job = job;
4209 dd_data->context_un.mbox.pmboxq = pmboxq;
4210 dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx;
4211 job->dd_data = dd_data;
4215 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
4216 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4217 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
4218 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4219 "2955 Issued SLI_CONFIG ext-buffer "
4220 "mailbox command, rc:x%x\n", rc);
4221 return SLI_CONFIG_HANDLED;
4223 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4224 "2956 Failed to issue SLI_CONFIG ext-buffer "
4225 "mailbox command, rc:x%x\n", rc);
4230 /* wait for additoinal external buffers */
4232 bsg_reply->result = 0;
4233 bsg_job_done(job, bsg_reply->result,
4234 bsg_reply->reply_payload_rcv_len);
4235 return SLI_CONFIG_HANDLED;
4239 mempool_free(pmboxq, phba->mbox_mem_pool);
4246 * lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer
4247 * @phba: Pointer to HBA context object.
4248 * @mb: Pointer to a BSG mailbox object.
4249 * @dmabuff: Pointer to a DMA buffer descriptor.
4251 * This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded
4252 * external bufffers, including both 0x9B with non-embedded MSEs and 0x9B
4253 * with embedded sussystem 0x1 and opcodes with external HBDs.
4256 lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct bsg_job *job,
4257 struct lpfc_dmabuf *dmabuf)
4259 struct lpfc_sli_config_mbox *sli_cfg_mbx;
4262 int rc = SLI_CONFIG_NOT_HANDLED;
4264 /* state change on new multi-buffer pass-through mailbox command */
4265 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST;
4267 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
4269 if (!bsg_bf_get(lpfc_mbox_hdr_emb,
4270 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
4271 subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys,
4272 &sli_cfg_mbx->un.sli_config_emb0_subsys);
4273 opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode,
4274 &sli_cfg_mbx->un.sli_config_emb0_subsys);
4275 if (subsys == SLI_CONFIG_SUBSYS_FCOE) {
4277 case FCOE_OPCODE_READ_FCF:
4278 case FCOE_OPCODE_GET_DPORT_RESULTS:
4279 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4280 "2957 Handled SLI_CONFIG "
4281 "subsys_fcoe, opcode:x%x\n",
4283 rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
4286 case FCOE_OPCODE_ADD_FCF:
4287 case FCOE_OPCODE_SET_DPORT_MODE:
4288 case LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE:
4289 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4290 "2958 Handled SLI_CONFIG "
4291 "subsys_fcoe, opcode:x%x\n",
4293 rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
4297 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4298 "2959 Reject SLI_CONFIG "
4299 "subsys_fcoe, opcode:x%x\n",
4304 } else if (subsys == SLI_CONFIG_SUBSYS_COMN) {
4306 case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES:
4307 case COMN_OPCODE_GET_CNTL_ATTRIBUTES:
4308 case COMN_OPCODE_GET_PROFILE_CONFIG:
4309 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4310 "3106 Handled SLI_CONFIG "
4311 "subsys_comn, opcode:x%x\n",
4313 rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
4317 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4318 "3107 Reject SLI_CONFIG "
4319 "subsys_comn, opcode:x%x\n",
4325 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4326 "2977 Reject SLI_CONFIG "
4327 "subsys:x%d, opcode:x%x\n",
4332 subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys,
4333 &sli_cfg_mbx->un.sli_config_emb1_subsys);
4334 opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode,
4335 &sli_cfg_mbx->un.sli_config_emb1_subsys);
4336 if (subsys == SLI_CONFIG_SUBSYS_COMN) {
4338 case COMN_OPCODE_READ_OBJECT:
4339 case COMN_OPCODE_READ_OBJECT_LIST:
4340 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4341 "2960 Handled SLI_CONFIG "
4342 "subsys_comn, opcode:x%x\n",
4344 rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
4347 case COMN_OPCODE_WRITE_OBJECT:
4348 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4349 "2961 Handled SLI_CONFIG "
4350 "subsys_comn, opcode:x%x\n",
4352 rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
4356 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4357 "2962 Not handled SLI_CONFIG "
4358 "subsys_comn, opcode:x%x\n",
4360 rc = SLI_CONFIG_NOT_HANDLED;
4364 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4365 "2978 Not handled SLI_CONFIG "
4366 "subsys:x%d, opcode:x%x\n",
4368 rc = SLI_CONFIG_NOT_HANDLED;
4372 /* state reset on not handled new multi-buffer mailbox command */
4373 if (rc != SLI_CONFIG_HANDLED)
4374 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
4380 * lpfc_bsg_mbox_ext_abort_req - request to abort mbox command with ext buffers
4381 * @phba: Pointer to HBA context object.
4383 * This routine is for requesting to abort a pass-through mailbox command with
4384 * multiple external buffers due to error condition.
4387 lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba)
4389 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
4390 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
4392 lpfc_bsg_mbox_ext_session_reset(phba);
4397 * lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer
4398 * @phba: Pointer to HBA context object.
4399 * @dmabuf: Pointer to a DMA buffer descriptor.
4401 * This routine extracts the next mailbox read external buffer back to
4402 * user space through BSG.
4405 lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct bsg_job *job)
4407 struct fc_bsg_reply *bsg_reply = job->reply;
4408 struct lpfc_sli_config_mbox *sli_cfg_mbx;
4409 struct lpfc_dmabuf *dmabuf;
4414 index = phba->mbox_ext_buf_ctx.seqNum;
4415 phba->mbox_ext_buf_ctx.seqNum++;
4417 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)
4418 phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
4420 if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
4421 size = bsg_bf_get(lpfc_mbox_sli_config_mse_len,
4422 &sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]);
4423 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4424 "2963 SLI_CONFIG (mse) ext-buffer rd get "
4425 "buffer[%d], size:%d\n", index, size);
4427 size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
4428 &sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]);
4429 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4430 "2964 SLI_CONFIG (hbd) ext-buffer rd get "
4431 "buffer[%d], size:%d\n", index, size);
4433 if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list))
4435 dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list,
4436 struct lpfc_dmabuf, list);
4437 list_del_init(&dmabuf->list);
4439 /* after dma buffer descriptor setup */
4440 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
4441 mbox_rd, dma_ebuf, sta_pos_addr,
4444 pbuf = (uint8_t *)dmabuf->virt;
4445 bsg_reply->reply_payload_rcv_len =
4446 sg_copy_from_buffer(job->reply_payload.sg_list,
4447 job->reply_payload.sg_cnt,
4450 lpfc_bsg_dma_page_free(phba, dmabuf);
4452 if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
4453 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4454 "2965 SLI_CONFIG (hbd) ext-buffer rd mbox "
4455 "command session done\n");
4456 lpfc_bsg_mbox_ext_session_reset(phba);
4459 bsg_reply->result = 0;
4460 bsg_job_done(job, bsg_reply->result,
4461 bsg_reply->reply_payload_rcv_len);
4463 return SLI_CONFIG_HANDLED;
4467 * lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer
4468 * @phba: Pointer to HBA context object.
4469 * @dmabuf: Pointer to a DMA buffer descriptor.
4471 * This routine sets up the next mailbox read external buffer obtained
4472 * from user space through BSG.
4475 lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct bsg_job *job,
4476 struct lpfc_dmabuf *dmabuf)
4478 struct fc_bsg_reply *bsg_reply = job->reply;
4479 struct bsg_job_data *dd_data = NULL;
4480 LPFC_MBOXQ_t *pmboxq = NULL;
4482 enum nemb_type nemb_tp;
4488 index = phba->mbox_ext_buf_ctx.seqNum;
4489 phba->mbox_ext_buf_ctx.seqNum++;
4490 nemb_tp = phba->mbox_ext_buf_ctx.nembType;
4492 pbuf = (uint8_t *)dmabuf->virt;
4493 size = job->request_payload.payload_len;
4494 sg_copy_to_buffer(job->request_payload.sg_list,
4495 job->request_payload.sg_cnt,
4498 if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
4499 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4500 "2966 SLI_CONFIG (mse) ext-buffer wr set "
4501 "buffer[%d], size:%d\n",
4502 phba->mbox_ext_buf_ctx.seqNum, size);
4505 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4506 "2967 SLI_CONFIG (hbd) ext-buffer wr set "
4507 "buffer[%d], size:%d\n",
4508 phba->mbox_ext_buf_ctx.seqNum, size);
4512 /* set up external buffer descriptor and add to external buffer list */
4513 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index,
4514 phba->mbox_ext_buf_ctx.mbx_dmabuf,
4516 list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4518 /* after write dma buffer */
4519 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
4520 mbox_wr, dma_ebuf, sta_pos_addr,
4523 if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
4524 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4525 "2968 SLI_CONFIG ext-buffer wr all %d "
4526 "ebuffers received\n",
4527 phba->mbox_ext_buf_ctx.numBuf);
4529 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
4535 /* mailbox command structure for base driver */
4536 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4541 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4542 pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
4543 pmb = &pmboxq->u.mb;
4544 memcpy(pmb, pbuf, sizeof(*pmb));
4545 pmb->mbxOwner = OWN_HOST;
4546 pmboxq->vport = phba->pport;
4548 /* callback for multi-buffer write mailbox command */
4549 pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
4551 /* context fields to callback function */
4552 pmboxq->ctx_buf = dd_data;
4553 dd_data->type = TYPE_MBOX;
4554 dd_data->set_job = job;
4555 dd_data->context_un.mbox.pmboxq = pmboxq;
4556 dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf;
4557 job->dd_data = dd_data;
4560 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
4562 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4563 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
4564 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4565 "2969 Issued SLI_CONFIG ext-buffer "
4566 "mailbox command, rc:x%x\n", rc);
4567 return SLI_CONFIG_HANDLED;
4569 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4570 "2970 Failed to issue SLI_CONFIG ext-buffer "
4571 "mailbox command, rc:x%x\n", rc);
4576 /* wait for additoinal external buffers */
4577 bsg_reply->result = 0;
4578 bsg_job_done(job, bsg_reply->result,
4579 bsg_reply->reply_payload_rcv_len);
4580 return SLI_CONFIG_HANDLED;
4584 mempool_free(pmboxq, phba->mbox_mem_pool);
4585 lpfc_bsg_dma_page_free(phba, dmabuf);
4592 * lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd
4593 * @phba: Pointer to HBA context object.
4594 * @mb: Pointer to a BSG mailbox object.
4595 * @dmabuff: Pointer to a DMA buffer descriptor.
4597 * This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox
4598 * command with multiple non-embedded external buffers.
4601 lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct bsg_job *job,
4602 struct lpfc_dmabuf *dmabuf)
4606 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4607 "2971 SLI_CONFIG buffer (type:x%x)\n",
4608 phba->mbox_ext_buf_ctx.mboxType);
4610 if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) {
4611 if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) {
4612 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4613 "2972 SLI_CONFIG rd buffer state "
4615 phba->mbox_ext_buf_ctx.state);
4616 lpfc_bsg_mbox_ext_abort(phba);
4619 rc = lpfc_bsg_read_ebuf_get(phba, job);
4620 if (rc == SLI_CONFIG_HANDLED)
4621 lpfc_bsg_dma_page_free(phba, dmabuf);
4622 } else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */
4623 if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) {
4624 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4625 "2973 SLI_CONFIG wr buffer state "
4627 phba->mbox_ext_buf_ctx.state);
4628 lpfc_bsg_mbox_ext_abort(phba);
4631 rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf);
4637 * lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer
4638 * @phba: Pointer to HBA context object.
4639 * @mb: Pointer to a BSG mailbox object.
4640 * @dmabuff: Pointer to a DMA buffer descriptor.
4642 * This routine checkes and handles non-embedded multi-buffer SLI_CONFIG
4643 * (0x9B) mailbox commands and external buffers.
4646 lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct bsg_job *job,
4647 struct lpfc_dmabuf *dmabuf)
4649 struct fc_bsg_request *bsg_request = job->request;
4650 struct dfc_mbox_req *mbox_req;
4651 int rc = SLI_CONFIG_NOT_HANDLED;
4654 (struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
4656 /* mbox command with/without single external buffer */
4657 if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0)
4660 /* mbox command and first external buffer */
4661 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) {
4662 if (mbox_req->extSeqNum == 1) {
4663 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4664 "2974 SLI_CONFIG mailbox: tag:%d, "
4665 "seq:%d\n", mbox_req->extMboxTag,
4666 mbox_req->extSeqNum);
4667 rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf);
4670 goto sli_cfg_ext_error;
4674 * handle additional external buffers
4677 /* check broken pipe conditions */
4678 if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag)
4679 goto sli_cfg_ext_error;
4680 if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf)
4681 goto sli_cfg_ext_error;
4682 if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1)
4683 goto sli_cfg_ext_error;
4685 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4686 "2975 SLI_CONFIG mailbox external buffer: "
4687 "extSta:x%x, tag:%d, seq:%d\n",
4688 phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag,
4689 mbox_req->extSeqNum);
4690 rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf);
4694 /* all other cases, broken pipe */
4695 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4696 "2976 SLI_CONFIG mailbox broken pipe: "
4697 "ctxSta:x%x, ctxNumBuf:%d "
4698 "ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n",
4699 phba->mbox_ext_buf_ctx.state,
4700 phba->mbox_ext_buf_ctx.numBuf,
4701 phba->mbox_ext_buf_ctx.mbxTag,
4702 phba->mbox_ext_buf_ctx.seqNum,
4703 mbox_req->extMboxTag, mbox_req->extSeqNum);
4705 lpfc_bsg_mbox_ext_session_reset(phba);
4711 * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app
4712 * @phba: Pointer to HBA context object.
4713 * @mb: Pointer to a mailbox object.
4714 * @vport: Pointer to a vport object.
4716 * Allocate a tracking object, mailbox command memory, get a mailbox
4717 * from the mailbox pool, copy the caller mailbox command.
4719 * If offline and the sli is active we need to poll for the command (port is
4720 * being reset) and com-plete the job, otherwise issue the mailbox command and
4721 * let our completion handler finish the command.
4724 lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct bsg_job *job,
4725 struct lpfc_vport *vport)
4727 struct fc_bsg_request *bsg_request = job->request;
4728 struct fc_bsg_reply *bsg_reply = job->reply;
4729 LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */
4730 MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */
4731 /* a 4k buffer to hold the mb and extended data from/to the bsg */
4732 uint8_t *pmbx = NULL;
4733 struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */
4734 struct lpfc_dmabuf *dmabuf = NULL;
4735 struct dfc_mbox_req *mbox_req;
4736 struct READ_EVENT_LOG_VAR *rdEventLog;
4737 uint32_t transmit_length, receive_length, mode;
4738 struct lpfc_mbx_sli4_config *sli4_config;
4739 struct lpfc_mbx_nembed_cmd *nembed_sge;
4740 struct ulp_bde64 *bde;
4741 uint8_t *ext = NULL;
4746 /* in case no data is transferred */
4747 bsg_reply->reply_payload_rcv_len = 0;
4749 /* sanity check to protect driver */
4750 if (job->reply_payload.payload_len > BSG_MBOX_SIZE ||
4751 job->request_payload.payload_len > BSG_MBOX_SIZE) {
4757 * Don't allow mailbox commands to be sent when blocked or when in
4758 * the middle of discovery
4760 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
4766 (struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
4768 /* check if requested extended data lengths are valid */
4769 if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) ||
4770 (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) {
4775 dmabuf = lpfc_bsg_dma_page_alloc(phba);
4776 if (!dmabuf || !dmabuf->virt) {
4781 /* Get the mailbox command or external buffer from BSG */
4782 pmbx = (uint8_t *)dmabuf->virt;
4783 size = job->request_payload.payload_len;
4784 sg_copy_to_buffer(job->request_payload.sg_list,
4785 job->request_payload.sg_cnt, pmbx, size);
4787 /* Handle possible SLI_CONFIG with non-embedded payloads */
4788 if (phba->sli_rev == LPFC_SLI_REV4) {
4789 rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf);
4790 if (rc == SLI_CONFIG_HANDLED)
4794 /* SLI_CONFIG_NOT_HANDLED for other mailbox commands */
4797 rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport);
4799 goto job_done; /* must be negative */
4801 /* allocate our bsg tracking structure */
4802 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
4804 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
4805 "2727 Failed allocation of dd_data\n");
4810 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4815 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4817 pmb = &pmboxq->u.mb;
4818 memcpy(pmb, pmbx, sizeof(*pmb));
4819 pmb->mbxOwner = OWN_HOST;
4820 pmboxq->vport = vport;
4822 /* If HBA encountered an error attention, allow only DUMP
4823 * or RESTART mailbox commands until the HBA is restarted.
4825 if (phba->pport->stopped &&
4826 pmb->mbxCommand != MBX_DUMP_MEMORY &&
4827 pmb->mbxCommand != MBX_RESTART &&
4828 pmb->mbxCommand != MBX_WRITE_VPARMS &&
4829 pmb->mbxCommand != MBX_WRITE_WWN)
4830 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
4831 "2797 mbox: Issued mailbox cmd "
4832 "0x%x while in stopped state.\n",
4835 /* extended mailbox commands will need an extended buffer */
4836 if (mbox_req->inExtWLen || mbox_req->outExtWLen) {
4838 ext = from + sizeof(MAILBOX_t);
4839 pmboxq->ctx_buf = ext;
4840 pmboxq->in_ext_byte_len =
4841 mbox_req->inExtWLen * sizeof(uint32_t);
4842 pmboxq->out_ext_byte_len =
4843 mbox_req->outExtWLen * sizeof(uint32_t);
4844 pmboxq->mbox_offset_word = mbox_req->mbOffset;
4847 /* biu diag will need a kernel buffer to transfer the data
4848 * allocate our own buffer and setup the mailbox command to
4851 if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) {
4852 transmit_length = pmb->un.varWords[1];
4853 receive_length = pmb->un.varWords[4];
4854 /* transmit length cannot be greater than receive length or
4855 * mailbox extension size
4857 if ((transmit_length > receive_length) ||
4858 (transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
4862 pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh =
4863 putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t));
4864 pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow =
4865 putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t));
4867 pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh =
4868 putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)
4869 + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
4870 pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow =
4871 putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)
4872 + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
4873 } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) {
4874 rdEventLog = &pmb->un.varRdEventLog;
4875 receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize;
4876 mode = bf_get(lpfc_event_log, rdEventLog);
4878 /* receive length cannot be greater than mailbox
4881 if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
4886 /* mode zero uses a bde like biu diags command */
4888 pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
4889 + sizeof(MAILBOX_t));
4890 pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
4891 + sizeof(MAILBOX_t));
4893 } else if (phba->sli_rev == LPFC_SLI_REV4) {
4894 /* Let type 4 (well known data) through because the data is
4895 * returned in varwords[4-8]
4896 * otherwise check the recieve length and fetch the buffer addr
4898 if ((pmb->mbxCommand == MBX_DUMP_MEMORY) &&
4899 (pmb->un.varDmp.type != DMP_WELL_KNOWN)) {
4900 /* rebuild the command for sli4 using our own buffers
4901 * like we do for biu diags
4903 receive_length = pmb->un.varWords[2];
4904 /* receive length cannot be greater than mailbox
4907 if (receive_length == 0) {
4911 pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
4912 + sizeof(MAILBOX_t));
4913 pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
4914 + sizeof(MAILBOX_t));
4915 } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) &&
4916 pmb->un.varUpdateCfg.co) {
4917 bde = (struct ulp_bde64 *)&pmb->un.varWords[4];
4919 /* bde size cannot be greater than mailbox ext size */
4920 if (bde->tus.f.bdeSize >
4921 BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
4925 bde->addrHigh = putPaddrHigh(dmabuf->phys
4926 + sizeof(MAILBOX_t));
4927 bde->addrLow = putPaddrLow(dmabuf->phys
4928 + sizeof(MAILBOX_t));
4929 } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) {
4930 /* Handling non-embedded SLI_CONFIG mailbox command */
4931 sli4_config = &pmboxq->u.mqe.un.sli4_config;
4932 if (!bf_get(lpfc_mbox_hdr_emb,
4933 &sli4_config->header.cfg_mhdr)) {
4934 /* rebuild the command for sli4 using our
4935 * own buffers like we do for biu diags
4937 nembed_sge = (struct lpfc_mbx_nembed_cmd *)
4938 &pmb->un.varWords[0];
4939 receive_length = nembed_sge->sge[0].length;
4941 /* receive length cannot be greater than
4942 * mailbox extension size
4944 if ((receive_length == 0) ||
4946 BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
4951 nembed_sge->sge[0].pa_hi =
4952 putPaddrHigh(dmabuf->phys
4953 + sizeof(MAILBOX_t));
4954 nembed_sge->sge[0].pa_lo =
4955 putPaddrLow(dmabuf->phys
4956 + sizeof(MAILBOX_t));
4961 dd_data->context_un.mbox.dmabuffers = dmabuf;
4963 /* setup wake call as IOCB callback */
4964 pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl;
4966 /* setup context field to pass wait_queue pointer to wake function */
4967 pmboxq->ctx_ndlp = dd_data;
4968 dd_data->type = TYPE_MBOX;
4969 dd_data->set_job = job;
4970 dd_data->context_un.mbox.pmboxq = pmboxq;
4971 dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
4972 dd_data->context_un.mbox.ext = ext;
4973 dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset;
4974 dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen;
4975 dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen;
4976 job->dd_data = dd_data;
4978 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4979 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
4980 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4981 if (rc != MBX_SUCCESS) {
4982 rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
4986 /* job finished, copy the data */
4987 memcpy(pmbx, pmb, sizeof(*pmb));
4988 bsg_reply->reply_payload_rcv_len =
4989 sg_copy_from_buffer(job->reply_payload.sg_list,
4990 job->reply_payload.sg_cnt,
4992 /* not waiting mbox already done */
4997 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4998 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY))
4999 return 1; /* job started */
5002 /* common exit for error or job completed inline */
5004 mempool_free(pmboxq, phba->mbox_mem_pool);
5005 lpfc_bsg_dma_page_free(phba, dmabuf);
5013 * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command
5014 * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX.
5017 lpfc_bsg_mbox_cmd(struct bsg_job *job)
5019 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
5020 struct fc_bsg_request *bsg_request = job->request;
5021 struct fc_bsg_reply *bsg_reply = job->reply;
5022 struct lpfc_hba *phba = vport->phba;
5023 struct dfc_mbox_req *mbox_req;
5026 /* mix-and-match backward compatibility */
5027 bsg_reply->reply_payload_rcv_len = 0;
5028 if (job->request_len <
5029 sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) {
5030 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
5031 "2737 Mix-and-match backward compatibility "
5032 "between MBOX_REQ old size:%d and "
5033 "new request size:%d\n",
5034 (int)(job->request_len -
5035 sizeof(struct fc_bsg_request)),
5036 (int)sizeof(struct dfc_mbox_req));
5037 mbox_req = (struct dfc_mbox_req *)
5038 bsg_request->rqst_data.h_vendor.vendor_cmd;
5039 mbox_req->extMboxTag = 0;
5040 mbox_req->extSeqNum = 0;
5043 rc = lpfc_bsg_issue_mbox(phba, job, vport);
5047 bsg_reply->result = 0;
5048 job->dd_data = NULL;
5049 bsg_job_done(job, bsg_reply->result,
5050 bsg_reply->reply_payload_rcv_len);
5052 /* job submitted, will complete later*/
5053 rc = 0; /* return zero, no error */
5055 /* some error occurred */
5056 bsg_reply->result = rc;
5057 job->dd_data = NULL;
5064 * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler
5065 * @phba: Pointer to HBA context object.
5066 * @cmdiocbq: Pointer to command iocb.
5067 * @rspiocbq: Pointer to response iocb.
5069 * This function is the completion handler for iocbs issued using
5070 * lpfc_menlo_cmd function. This function is called by the
5071 * ring event handler function without any lock held. This function
5072 * can be called from both worker thread context and interrupt
5073 * context. This function also can be called from another thread which
5074 * cleans up the SLI layer objects.
5075 * This function copies the contents of the response iocb to the
5076 * response iocb memory object provided by the caller of
5077 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
5078 * sleeps for the iocb completion.
5081 lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba,
5082 struct lpfc_iocbq *cmdiocbq,
5083 struct lpfc_iocbq *rspiocbq)
5085 struct bsg_job_data *dd_data;
5086 struct bsg_job *job;
5087 struct fc_bsg_reply *bsg_reply;
5089 struct lpfc_dmabuf *bmp, *cmp, *rmp;
5090 struct lpfc_bsg_menlo *menlo;
5091 unsigned long flags;
5092 struct menlo_response *menlo_resp;
5093 unsigned int rsp_size;
5096 dd_data = cmdiocbq->context1;
5097 cmp = cmdiocbq->context2;
5098 bmp = cmdiocbq->context3;
5099 menlo = &dd_data->context_un.menlo;
5101 rsp = &rspiocbq->iocb;
5103 /* Determine if job has been aborted */
5104 spin_lock_irqsave(&phba->ct_ev_lock, flags);
5105 job = dd_data->set_job;
5107 bsg_reply = job->reply;
5108 /* Prevent timeout handling from trying to abort job */
5109 job->dd_data = NULL;
5111 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5113 /* Copy the job data or set the failing status for the job */
5116 /* always return the xri, this would be used in the case
5117 * of a menlo download to allow the data to be sent as a
5118 * continuation of the exchange.
5121 menlo_resp = (struct menlo_response *)
5122 bsg_reply->reply_data.vendor_reply.vendor_rsp;
5123 menlo_resp->xri = rsp->ulpContext;
5124 if (rsp->ulpStatus) {
5125 if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
5126 switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
5127 case IOERR_SEQUENCE_TIMEOUT:
5130 case IOERR_INVALID_RPI:
5141 rsp_size = rsp->un.genreq64.bdl.bdeSize;
5142 bsg_reply->reply_payload_rcv_len =
5143 lpfc_bsg_copy_data(rmp, &job->reply_payload,
5149 lpfc_sli_release_iocbq(phba, cmdiocbq);
5150 lpfc_free_bsg_buffers(phba, cmp);
5151 lpfc_free_bsg_buffers(phba, rmp);
5152 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
5156 /* Complete the job if active */
5159 bsg_reply->result = rc;
5160 bsg_job_done(job, bsg_reply->result,
5161 bsg_reply->reply_payload_rcv_len);
5168 * lpfc_menlo_cmd - send an ioctl for menlo hardware
5169 * @job: fc_bsg_job to handle
5171 * This function issues a gen request 64 CR ioctl for all menlo cmd requests,
5172 * all the command completions will return the xri for the command.
5173 * For menlo data requests a gen request 64 CX is used to continue the exchange
5174 * supplied in the menlo request header xri field.
5177 lpfc_menlo_cmd(struct bsg_job *job)
5179 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
5180 struct fc_bsg_request *bsg_request = job->request;
5181 struct fc_bsg_reply *bsg_reply = job->reply;
5182 struct lpfc_hba *phba = vport->phba;
5183 struct lpfc_iocbq *cmdiocbq;
5186 struct menlo_command *menlo_cmd;
5187 struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
5190 struct bsg_job_data *dd_data;
5191 struct ulp_bde64 *bpl = NULL;
5193 /* in case no data is returned return just the return code */
5194 bsg_reply->reply_payload_rcv_len = 0;
5196 if (job->request_len <
5197 sizeof(struct fc_bsg_request) +
5198 sizeof(struct menlo_command)) {
5199 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5200 "2784 Received MENLO_CMD request below "
5206 if (job->reply_len <
5207 sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) {
5208 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5209 "2785 Received MENLO_CMD reply below "
5215 if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) {
5216 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5217 "2786 Adapter does not support menlo "
5223 menlo_cmd = (struct menlo_command *)
5224 bsg_request->rqst_data.h_vendor.vendor_cmd;
5226 /* allocate our bsg tracking structure */
5227 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
5229 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5230 "2787 Failed allocation of dd_data\n");
5235 bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5241 bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
5247 INIT_LIST_HEAD(&bmp->list);
5249 bpl = (struct ulp_bde64 *)bmp->virt;
5250 request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
5251 cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
5252 1, bpl, &request_nseg);
5257 lpfc_bsg_copy_data(cmp, &job->request_payload,
5258 job->request_payload.payload_len, 1);
5260 bpl += request_nseg;
5261 reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
5262 rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
5269 cmdiocbq = lpfc_sli_get_iocbq(phba);
5275 cmd = &cmdiocbq->iocb;
5276 cmd->un.genreq64.bdl.ulpIoTag32 = 0;
5277 cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
5278 cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
5279 cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
5280 cmd->un.genreq64.bdl.bdeSize =
5281 (request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
5282 cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
5283 cmd->un.genreq64.w5.hcsw.Dfctl = 0;
5284 cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD;
5285 cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */
5286 cmd->ulpBdeCount = 1;
5287 cmd->ulpClass = CLASS3;
5288 cmd->ulpOwner = OWN_CHIP;
5289 cmd->ulpLe = 1; /* Limited Edition */
5290 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
5291 cmdiocbq->vport = phba->pport;
5292 /* We want the firmware to timeout before we do */
5293 cmd->ulpTimeout = MENLO_TIMEOUT - 5;
5294 cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp;
5295 cmdiocbq->context1 = dd_data;
5296 cmdiocbq->context2 = cmp;
5297 cmdiocbq->context3 = bmp;
5298 if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) {
5299 cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
5300 cmd->ulpPU = MENLO_PU; /* 3 */
5301 cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */
5302 cmd->ulpContext = MENLO_CONTEXT; /* 0 */
5304 cmd->ulpCommand = CMD_GEN_REQUEST64_CX;
5306 cmd->un.ulpWord[4] = 0;
5307 cmd->ulpContext = menlo_cmd->xri;
5310 dd_data->type = TYPE_MENLO;
5311 dd_data->set_job = job;
5312 dd_data->context_un.menlo.cmdiocbq = cmdiocbq;
5313 dd_data->context_un.menlo.rmp = rmp;
5314 job->dd_data = dd_data;
5316 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
5318 if (rc == IOCB_SUCCESS)
5319 return 0; /* done for now */
5321 lpfc_sli_release_iocbq(phba, cmdiocbq);
5324 lpfc_free_bsg_buffers(phba, rmp);
5326 lpfc_free_bsg_buffers(phba, cmp);
5329 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
5334 /* make error code available to userspace */
5335 bsg_reply->result = rc;
5336 job->dd_data = NULL;
5341 lpfc_forced_link_speed(struct bsg_job *job)
5343 struct Scsi_Host *shost = fc_bsg_to_shost(job);
5344 struct lpfc_vport *vport = shost_priv(shost);
5345 struct lpfc_hba *phba = vport->phba;
5346 struct fc_bsg_reply *bsg_reply = job->reply;
5347 struct forced_link_speed_support_reply *forced_reply;
5350 if (job->request_len <
5351 sizeof(struct fc_bsg_request) +
5352 sizeof(struct get_forced_link_speed_support)) {
5353 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5354 "0048 Received FORCED_LINK_SPEED request "
5355 "below minimum size\n");
5360 forced_reply = (struct forced_link_speed_support_reply *)
5361 bsg_reply->reply_data.vendor_reply.vendor_rsp;
5363 if (job->reply_len <
5364 sizeof(struct fc_bsg_request) +
5365 sizeof(struct forced_link_speed_support_reply)) {
5366 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5367 "0049 Received FORCED_LINK_SPEED reply below "
5373 forced_reply->supported = (phba->hba_flag & HBA_FORCED_LINK_SPEED)
5374 ? LPFC_FORCED_LINK_SPEED_SUPPORTED
5375 : LPFC_FORCED_LINK_SPEED_NOT_SUPPORTED;
5377 bsg_reply->result = rc;
5379 bsg_job_done(job, bsg_reply->result,
5380 bsg_reply->reply_payload_rcv_len);
5385 * lpfc_check_fwlog_support: Check FW log support on the adapter
5386 * @phba: Pointer to HBA context object.
5388 * Check if FW Logging support by the adapter
5391 lpfc_check_fwlog_support(struct lpfc_hba *phba)
5393 struct lpfc_ras_fwlog *ras_fwlog = NULL;
5395 ras_fwlog = &phba->ras_fwlog;
5397 if (ras_fwlog->ras_hwsupport == false)
5399 else if (ras_fwlog->ras_enabled == false)
5406 * lpfc_bsg_get_ras_config: Get RAS configuration settings
5407 * @job: fc_bsg_job to handle
5409 * Get RAS configuration values set.
5412 lpfc_bsg_get_ras_config(struct bsg_job *job)
5414 struct Scsi_Host *shost = fc_bsg_to_shost(job);
5415 struct lpfc_vport *vport = shost_priv(shost);
5416 struct fc_bsg_reply *bsg_reply = job->reply;
5417 struct lpfc_hba *phba = vport->phba;
5418 struct lpfc_bsg_get_ras_config_reply *ras_reply;
5419 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
5422 if (job->request_len <
5423 sizeof(struct fc_bsg_request) +
5424 sizeof(struct lpfc_bsg_ras_req)) {
5425 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
5426 "6192 FW_LOG request received "
5427 "below minimum size\n");
5432 /* Check FW log status */
5433 rc = lpfc_check_fwlog_support(phba);
5437 ras_reply = (struct lpfc_bsg_get_ras_config_reply *)
5438 bsg_reply->reply_data.vendor_reply.vendor_rsp;
5440 /* Current logging state */
5441 spin_lock_irq(&phba->hbalock);
5442 if (ras_fwlog->state == ACTIVE)
5443 ras_reply->state = LPFC_RASLOG_STATE_RUNNING;
5445 ras_reply->state = LPFC_RASLOG_STATE_STOPPED;
5446 spin_unlock_irq(&phba->hbalock);
5448 ras_reply->log_level = phba->ras_fwlog.fw_loglevel;
5449 ras_reply->log_buff_sz = phba->cfg_ras_fwlog_buffsize;
5452 /* make error code available to userspace */
5453 bsg_reply->result = rc;
5455 /* complete the job back to userspace */
5457 bsg_job_done(job, bsg_reply->result,
5458 bsg_reply->reply_payload_rcv_len);
5463 * lpfc_bsg_set_ras_config: Set FW logging parameters
5464 * @job: fc_bsg_job to handle
5466 * Set log-level parameters for FW-logging in host memory
5469 lpfc_bsg_set_ras_config(struct bsg_job *job)
5471 struct Scsi_Host *shost = fc_bsg_to_shost(job);
5472 struct lpfc_vport *vport = shost_priv(shost);
5473 struct lpfc_hba *phba = vport->phba;
5474 struct lpfc_bsg_set_ras_config_req *ras_req;
5475 struct fc_bsg_request *bsg_request = job->request;
5476 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
5477 struct fc_bsg_reply *bsg_reply = job->reply;
5478 uint8_t action = 0, log_level = 0;
5479 int rc = 0, action_status = 0;
5481 if (job->request_len <
5482 sizeof(struct fc_bsg_request) +
5483 sizeof(struct lpfc_bsg_set_ras_config_req)) {
5484 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
5485 "6182 Received RAS_LOG request "
5486 "below minimum size\n");
5491 /* Check FW log status */
5492 rc = lpfc_check_fwlog_support(phba);
5496 ras_req = (struct lpfc_bsg_set_ras_config_req *)
5497 bsg_request->rqst_data.h_vendor.vendor_cmd;
5498 action = ras_req->action;
5499 log_level = ras_req->log_level;
5501 if (action == LPFC_RASACTION_STOP_LOGGING) {
5502 /* Check if already disabled */
5503 spin_lock_irq(&phba->hbalock);
5504 if (ras_fwlog->state != ACTIVE) {
5505 spin_unlock_irq(&phba->hbalock);
5509 spin_unlock_irq(&phba->hbalock);
5511 /* Disable logging */
5512 lpfc_ras_stop_fwlog(phba);
5514 /*action = LPFC_RASACTION_START_LOGGING*/
5516 /* Even though FW-logging is active re-initialize
5517 * FW-logging with new log-level. Return status
5518 * "Logging already Running" to caller.
5520 spin_lock_irq(&phba->hbalock);
5521 if (ras_fwlog->state != INACTIVE)
5522 action_status = -EINPROGRESS;
5523 spin_unlock_irq(&phba->hbalock);
5525 /* Enable logging */
5526 rc = lpfc_sli4_ras_fwlog_init(phba, log_level,
5527 LPFC_RAS_ENABLE_LOGGING);
5533 /* Check if FW-logging is re-initialized */
5534 if (action_status == -EINPROGRESS)
5538 /* make error code available to userspace */
5539 bsg_reply->result = rc;
5541 /* complete the job back to userspace */
5543 bsg_job_done(job, bsg_reply->result,
5544 bsg_reply->reply_payload_rcv_len);
5550 * lpfc_bsg_get_ras_lwpd: Get log write position data
5551 * @job: fc_bsg_job to handle
5553 * Get Offset/Wrap count of the log message written
5557 lpfc_bsg_get_ras_lwpd(struct bsg_job *job)
5559 struct Scsi_Host *shost = fc_bsg_to_shost(job);
5560 struct lpfc_vport *vport = shost_priv(shost);
5561 struct lpfc_bsg_get_ras_lwpd *ras_reply;
5562 struct lpfc_hba *phba = vport->phba;
5563 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
5564 struct fc_bsg_reply *bsg_reply = job->reply;
5565 u32 *lwpd_ptr = NULL;
5568 rc = lpfc_check_fwlog_support(phba);
5572 if (job->request_len <
5573 sizeof(struct fc_bsg_request) +
5574 sizeof(struct lpfc_bsg_ras_req)) {
5575 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
5576 "6183 Received RAS_LOG request "
5577 "below minimum size\n");
5582 ras_reply = (struct lpfc_bsg_get_ras_lwpd *)
5583 bsg_reply->reply_data.vendor_reply.vendor_rsp;
5585 if (!ras_fwlog->lwpd.virt) {
5586 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
5587 "6193 Restart FW Logging\n");
5592 /* Get lwpd offset */
5593 lwpd_ptr = (uint32_t *)(ras_fwlog->lwpd.virt);
5594 ras_reply->offset = be32_to_cpu(*lwpd_ptr & 0xffffffff);
5596 /* Get wrap count */
5597 ras_reply->wrap_count = be32_to_cpu(*(++lwpd_ptr) & 0xffffffff);
5600 /* make error code available to userspace */
5601 bsg_reply->result = rc;
5603 /* complete the job back to userspace */
5605 bsg_job_done(job, bsg_reply->result,
5606 bsg_reply->reply_payload_rcv_len);
5612 * lpfc_bsg_get_ras_fwlog: Read FW log
5613 * @job: fc_bsg_job to handle
5615 * Copy the FW log into the passed buffer.
5618 lpfc_bsg_get_ras_fwlog(struct bsg_job *job)
5620 struct Scsi_Host *shost = fc_bsg_to_shost(job);
5621 struct lpfc_vport *vport = shost_priv(shost);
5622 struct lpfc_hba *phba = vport->phba;
5623 struct fc_bsg_request *bsg_request = job->request;
5624 struct fc_bsg_reply *bsg_reply = job->reply;
5625 struct lpfc_bsg_get_fwlog_req *ras_req;
5626 u32 rd_offset, rd_index, offset;
5627 void *src, *fwlog_buff;
5628 struct lpfc_ras_fwlog *ras_fwlog = NULL;
5629 struct lpfc_dmabuf *dmabuf, *next;
5632 ras_fwlog = &phba->ras_fwlog;
5634 rc = lpfc_check_fwlog_support(phba);
5638 /* Logging to be stopped before reading */
5639 spin_lock_irq(&phba->hbalock);
5640 if (ras_fwlog->state == ACTIVE) {
5641 spin_unlock_irq(&phba->hbalock);
5645 spin_unlock_irq(&phba->hbalock);
5647 if (job->request_len <
5648 sizeof(struct fc_bsg_request) +
5649 sizeof(struct lpfc_bsg_get_fwlog_req)) {
5650 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
5651 "6184 Received RAS_LOG request "
5652 "below minimum size\n");
5657 ras_req = (struct lpfc_bsg_get_fwlog_req *)
5658 bsg_request->rqst_data.h_vendor.vendor_cmd;
5659 rd_offset = ras_req->read_offset;
5661 /* Allocate memory to read fw log*/
5662 fwlog_buff = vmalloc(ras_req->read_size);
5668 rd_index = (rd_offset / LPFC_RAS_MAX_ENTRY_SIZE);
5669 offset = (rd_offset % LPFC_RAS_MAX_ENTRY_SIZE);
5671 list_for_each_entry_safe(dmabuf, next,
5672 &ras_fwlog->fwlog_buff_list, list) {
5674 if (dmabuf->buffer_tag < rd_index)
5677 src = dmabuf->virt + offset;
5678 memcpy(fwlog_buff, src, ras_req->read_size);
5682 bsg_reply->reply_payload_rcv_len =
5683 sg_copy_from_buffer(job->reply_payload.sg_list,
5684 job->reply_payload.sg_cnt,
5685 fwlog_buff, ras_req->read_size);
5690 bsg_reply->result = rc;
5692 bsg_job_done(job, bsg_reply->result,
5693 bsg_reply->reply_payload_rcv_len);
5699 lpfc_get_trunk_info(struct bsg_job *job)
5701 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
5702 struct lpfc_hba *phba = vport->phba;
5703 struct fc_bsg_reply *bsg_reply = job->reply;
5704 struct lpfc_trunk_info *event_reply;
5707 if (job->request_len <
5708 sizeof(struct fc_bsg_request) + sizeof(struct get_trunk_info_req)) {
5709 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
5710 "2744 Received GET TRUNK _INFO request below "
5716 event_reply = (struct lpfc_trunk_info *)
5717 bsg_reply->reply_data.vendor_reply.vendor_rsp;
5719 if (job->reply_len <
5720 sizeof(struct fc_bsg_request) + sizeof(struct lpfc_trunk_info)) {
5721 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5722 "2728 Received GET TRUNK _INFO reply below "
5727 if (event_reply == NULL) {
5732 bsg_bf_set(lpfc_trunk_info_link_status, event_reply,
5733 (phba->link_state >= LPFC_LINK_UP) ? 1 : 0);
5735 bsg_bf_set(lpfc_trunk_info_trunk_active0, event_reply,
5736 (phba->trunk_link.link0.state == LPFC_LINK_UP) ? 1 : 0);
5738 bsg_bf_set(lpfc_trunk_info_trunk_active1, event_reply,
5739 (phba->trunk_link.link1.state == LPFC_LINK_UP) ? 1 : 0);
5741 bsg_bf_set(lpfc_trunk_info_trunk_active2, event_reply,
5742 (phba->trunk_link.link2.state == LPFC_LINK_UP) ? 1 : 0);
5744 bsg_bf_set(lpfc_trunk_info_trunk_active3, event_reply,
5745 (phba->trunk_link.link3.state == LPFC_LINK_UP) ? 1 : 0);
5747 bsg_bf_set(lpfc_trunk_info_trunk_config0, event_reply,
5748 bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba));
5750 bsg_bf_set(lpfc_trunk_info_trunk_config1, event_reply,
5751 bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba));
5753 bsg_bf_set(lpfc_trunk_info_trunk_config2, event_reply,
5754 bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba));
5756 bsg_bf_set(lpfc_trunk_info_trunk_config3, event_reply,
5757 bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba));
5759 event_reply->port_speed = phba->sli4_hba.link_state.speed / 1000;
5760 event_reply->logical_speed =
5761 phba->sli4_hba.link_state.logical_speed / 1000;
5763 bsg_reply->result = rc;
5765 bsg_job_done(job, bsg_reply->result,
5766 bsg_reply->reply_payload_rcv_len);
5772 * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job
5773 * @job: fc_bsg_job to handle
5776 lpfc_bsg_hst_vendor(struct bsg_job *job)
5778 struct fc_bsg_request *bsg_request = job->request;
5779 struct fc_bsg_reply *bsg_reply = job->reply;
5780 int command = bsg_request->rqst_data.h_vendor.vendor_cmd[0];
5784 case LPFC_BSG_VENDOR_SET_CT_EVENT:
5785 rc = lpfc_bsg_hba_set_event(job);
5787 case LPFC_BSG_VENDOR_GET_CT_EVENT:
5788 rc = lpfc_bsg_hba_get_event(job);
5790 case LPFC_BSG_VENDOR_SEND_MGMT_RESP:
5791 rc = lpfc_bsg_send_mgmt_rsp(job);
5793 case LPFC_BSG_VENDOR_DIAG_MODE:
5794 rc = lpfc_bsg_diag_loopback_mode(job);
5796 case LPFC_BSG_VENDOR_DIAG_MODE_END:
5797 rc = lpfc_sli4_bsg_diag_mode_end(job);
5799 case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK:
5800 rc = lpfc_bsg_diag_loopback_run(job);
5802 case LPFC_BSG_VENDOR_LINK_DIAG_TEST:
5803 rc = lpfc_sli4_bsg_link_diag_test(job);
5805 case LPFC_BSG_VENDOR_GET_MGMT_REV:
5806 rc = lpfc_bsg_get_dfc_rev(job);
5808 case LPFC_BSG_VENDOR_MBOX:
5809 rc = lpfc_bsg_mbox_cmd(job);
5811 case LPFC_BSG_VENDOR_MENLO_CMD:
5812 case LPFC_BSG_VENDOR_MENLO_DATA:
5813 rc = lpfc_menlo_cmd(job);
5815 case LPFC_BSG_VENDOR_FORCED_LINK_SPEED:
5816 rc = lpfc_forced_link_speed(job);
5818 case LPFC_BSG_VENDOR_RAS_GET_LWPD:
5819 rc = lpfc_bsg_get_ras_lwpd(job);
5821 case LPFC_BSG_VENDOR_RAS_GET_FWLOG:
5822 rc = lpfc_bsg_get_ras_fwlog(job);
5824 case LPFC_BSG_VENDOR_RAS_GET_CONFIG:
5825 rc = lpfc_bsg_get_ras_config(job);
5827 case LPFC_BSG_VENDOR_RAS_SET_CONFIG:
5828 rc = lpfc_bsg_set_ras_config(job);
5830 case LPFC_BSG_VENDOR_GET_TRUNK_INFO:
5831 rc = lpfc_get_trunk_info(job);
5835 bsg_reply->reply_payload_rcv_len = 0;
5836 /* make error code available to userspace */
5837 bsg_reply->result = rc;
5845 * lpfc_bsg_request - handle a bsg request from the FC transport
5846 * @job: bsg_job to handle
5849 lpfc_bsg_request(struct bsg_job *job)
5851 struct fc_bsg_request *bsg_request = job->request;
5852 struct fc_bsg_reply *bsg_reply = job->reply;
5856 msgcode = bsg_request->msgcode;
5858 case FC_BSG_HST_VENDOR:
5859 rc = lpfc_bsg_hst_vendor(job);
5861 case FC_BSG_RPT_ELS:
5862 rc = lpfc_bsg_rport_els(job);
5865 rc = lpfc_bsg_send_mgmt_cmd(job);
5869 bsg_reply->reply_payload_rcv_len = 0;
5870 /* make error code available to userspace */
5871 bsg_reply->result = rc;
5879 * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport
5880 * @job: bsg_job that has timed out
5882 * This function just aborts the job's IOCB. The aborted IOCB will return to
5883 * the waiting function which will handle passing the error back to userspace
5886 lpfc_bsg_timeout(struct bsg_job *job)
5888 struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
5889 struct lpfc_hba *phba = vport->phba;
5890 struct lpfc_iocbq *cmdiocb;
5891 struct lpfc_sli_ring *pring;
5892 struct bsg_job_data *dd_data;
5893 unsigned long flags;
5895 LIST_HEAD(completions);
5896 struct lpfc_iocbq *check_iocb, *next_iocb;
5898 pring = lpfc_phba_elsring(phba);
5899 if (unlikely(!pring))
5902 /* if job's driver data is NULL, the command completed or is in the
5903 * the process of completing. In this case, return status to request
5904 * so the timeout is retried. This avoids double completion issues
5905 * and the request will be pulled off the timer queue when the
5906 * command's completion handler executes. Otherwise, prevent the
5907 * command's completion handler from executing the job done callback
5908 * and continue processing to abort the outstanding the command.
5911 spin_lock_irqsave(&phba->ct_ev_lock, flags);
5912 dd_data = (struct bsg_job_data *)job->dd_data;
5914 dd_data->set_job = NULL;
5915 job->dd_data = NULL;
5917 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5921 switch (dd_data->type) {
5923 /* Check to see if IOCB was issued to the port or not. If not,
5924 * remove it from the txq queue and call cancel iocbs.
5925 * Otherwise, call abort iotag
5927 cmdiocb = dd_data->context_un.iocb.cmdiocbq;
5928 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5930 spin_lock_irqsave(&phba->hbalock, flags);
5931 /* make sure the I/O abort window is still open */
5932 if (!(cmdiocb->iocb_flag & LPFC_IO_CMD_OUTSTANDING)) {
5933 spin_unlock_irqrestore(&phba->hbalock, flags);
5936 list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
5938 if (check_iocb == cmdiocb) {
5939 list_move_tail(&check_iocb->list, &completions);
5943 if (list_empty(&completions))
5944 lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
5945 spin_unlock_irqrestore(&phba->hbalock, flags);
5946 if (!list_empty(&completions)) {
5947 lpfc_sli_cancel_iocbs(phba, &completions,
5948 IOSTAT_LOCAL_REJECT,
5954 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5958 /* Update the ext buf ctx state if needed */
5960 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
5961 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
5962 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5965 /* Check to see if IOCB was issued to the port or not. If not,
5966 * remove it from the txq queue and call cancel iocbs.
5967 * Otherwise, call abort iotag.
5969 cmdiocb = dd_data->context_un.menlo.cmdiocbq;
5970 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5972 spin_lock_irqsave(&phba->hbalock, flags);
5973 list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
5975 if (check_iocb == cmdiocb) {
5976 list_move_tail(&check_iocb->list, &completions);
5980 if (list_empty(&completions))
5981 lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
5982 spin_unlock_irqrestore(&phba->hbalock, flags);
5983 if (!list_empty(&completions)) {
5984 lpfc_sli_cancel_iocbs(phba, &completions,
5985 IOSTAT_LOCAL_REJECT,
5990 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5994 /* scsi transport fc fc_bsg_job_timeout expects a zero return code,
5995 * otherwise an error message will be displayed on the console
5996 * so always return success (zero)