1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2009-2014 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
8 * This program is free software; you can redistribute it and/or *
9 * modify it under the terms of version 2 of the GNU General *
10 * Public License as published by the Free Software Foundation. *
11 * This program is distributed in the hope that it will be useful. *
12 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
13 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
14 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
15 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
16 * TO BE LEGALLY INVALID. See the GNU General Public License for *
17 * more details, a copy of which can be found in the file COPYING *
18 * included with this package. *
19 *******************************************************************/
21 #include <linux/interrupt.h>
22 #include <linux/mempool.h>
23 #include <linux/pci.h>
24 #include <linux/slab.h>
25 #include <linux/delay.h>
26 #include <linux/list.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
31 #include <scsi/scsi_bsg_fc.h>
32 #include <scsi/fc/fc_fs.h>
37 #include "lpfc_sli4.h"
40 #include "lpfc_disc.h"
41 #include "lpfc_scsi.h"
43 #include "lpfc_logmsg.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_debugfs.h"
46 #include "lpfc_vport.h"
47 #include "lpfc_version.h"
49 struct lpfc_bsg_event {
50 struct list_head node;
54 /* Event type and waiter identifiers */
59 /* next two flags are here for the auto-delete logic */
60 unsigned long wait_time_stamp;
63 /* seen and not seen events */
64 struct list_head events_to_get;
65 struct list_head events_to_see;
67 /* driver data associated with the job */
71 struct lpfc_bsg_iocb {
72 struct lpfc_iocbq *cmdiocbq;
73 struct lpfc_dmabuf *rmp;
74 struct lpfc_nodelist *ndlp;
77 struct lpfc_bsg_mbox {
80 struct lpfc_dmabuf *dmabuffers; /* for BIU diags */
81 uint8_t *ext; /* extended mailbox data */
82 uint32_t mbOffset; /* from app */
83 uint32_t inExtWLen; /* from app */
84 uint32_t outExtWLen; /* from app */
87 #define MENLO_DID 0x0000FC0E
89 struct lpfc_bsg_menlo {
90 struct lpfc_iocbq *cmdiocbq;
91 struct lpfc_dmabuf *rmp;
100 struct fc_bsg_job *set_job; /* job waiting for this iocb to finish */
102 struct lpfc_bsg_event *evt;
103 struct lpfc_bsg_iocb iocb;
104 struct lpfc_bsg_mbox mbox;
105 struct lpfc_bsg_menlo menlo;
110 struct list_head node;
117 #define BUF_SZ_4K 4096
118 #define SLI_CT_ELX_LOOPBACK 0x10
120 enum ELX_LOOPBACK_CMD {
121 ELX_LOOPBACK_XRI_SETUP,
125 #define ELX_LOOPBACK_HEADER_SZ \
126 (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un)
128 struct lpfc_dmabufext {
129 struct lpfc_dmabuf dma;
135 lpfc_free_bsg_buffers(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist)
137 struct lpfc_dmabuf *mlast, *next_mlast;
140 list_for_each_entry_safe(mlast, next_mlast, &mlist->list,
142 lpfc_mbuf_free(phba, mlast->virt, mlast->phys);
143 list_del(&mlast->list);
146 lpfc_mbuf_free(phba, mlist->virt, mlist->phys);
152 static struct lpfc_dmabuf *
153 lpfc_alloc_bsg_buffers(struct lpfc_hba *phba, unsigned int size,
154 int outbound_buffers, struct ulp_bde64 *bpl,
157 struct lpfc_dmabuf *mlist = NULL;
158 struct lpfc_dmabuf *mp;
159 unsigned int bytes_left = size;
161 /* Verify we can support the size specified */
162 if (!size || (size > (*bpl_entries * LPFC_BPL_SIZE)))
165 /* Determine the number of dma buffers to allocate */
166 *bpl_entries = (size % LPFC_BPL_SIZE ? size/LPFC_BPL_SIZE + 1 :
169 /* Allocate dma buffer and place in BPL passed */
171 /* Allocate dma buffer */
172 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
175 lpfc_free_bsg_buffers(phba, mlist);
179 INIT_LIST_HEAD(&mp->list);
180 mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
185 lpfc_free_bsg_buffers(phba, mlist);
189 /* Queue it to a linked list */
193 list_add_tail(&mp->list, &mlist->list);
195 /* Add buffer to buffer pointer list */
196 if (outbound_buffers)
197 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
199 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
200 bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys));
201 bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys));
202 bpl->tus.f.bdeSize = (uint16_t)
203 (bytes_left >= LPFC_BPL_SIZE ? LPFC_BPL_SIZE :
205 bytes_left -= bpl->tus.f.bdeSize;
206 bpl->tus.w = le32_to_cpu(bpl->tus.w);
213 lpfc_bsg_copy_data(struct lpfc_dmabuf *dma_buffers,
214 struct fc_bsg_buffer *bsg_buffers,
215 unsigned int bytes_to_transfer, int to_buffers)
218 struct lpfc_dmabuf *mp;
219 unsigned int transfer_bytes, bytes_copied = 0;
220 unsigned int sg_offset, dma_offset;
221 unsigned char *dma_address, *sg_address;
222 LIST_HEAD(temp_list);
223 struct sg_mapping_iter miter;
225 unsigned int sg_flags = SG_MITER_ATOMIC;
228 list_splice_init(&dma_buffers->list, &temp_list);
229 list_add(&dma_buffers->list, &temp_list);
232 sg_flags |= SG_MITER_FROM_SG;
234 sg_flags |= SG_MITER_TO_SG;
235 sg_miter_start(&miter, bsg_buffers->sg_list, bsg_buffers->sg_cnt,
237 local_irq_save(flags);
238 sg_valid = sg_miter_next(&miter);
239 list_for_each_entry(mp, &temp_list, list) {
241 while (bytes_to_transfer && sg_valid &&
242 (dma_offset < LPFC_BPL_SIZE)) {
243 dma_address = mp->virt + dma_offset;
245 /* Continue previous partial transfer of sg */
246 sg_address = miter.addr + sg_offset;
247 transfer_bytes = miter.length - sg_offset;
249 sg_address = miter.addr;
250 transfer_bytes = miter.length;
252 if (bytes_to_transfer < transfer_bytes)
253 transfer_bytes = bytes_to_transfer;
254 if (transfer_bytes > (LPFC_BPL_SIZE - dma_offset))
255 transfer_bytes = LPFC_BPL_SIZE - dma_offset;
257 memcpy(dma_address, sg_address, transfer_bytes);
259 memcpy(sg_address, dma_address, transfer_bytes);
260 dma_offset += transfer_bytes;
261 sg_offset += transfer_bytes;
262 bytes_to_transfer -= transfer_bytes;
263 bytes_copied += transfer_bytes;
264 if (sg_offset >= miter.length) {
266 sg_valid = sg_miter_next(&miter);
270 sg_miter_stop(&miter);
271 local_irq_restore(flags);
272 list_del_init(&dma_buffers->list);
273 list_splice(&temp_list, &dma_buffers->list);
278 * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler
279 * @phba: Pointer to HBA context object.
280 * @cmdiocbq: Pointer to command iocb.
281 * @rspiocbq: Pointer to response iocb.
283 * This function is the completion handler for iocbs issued using
284 * lpfc_bsg_send_mgmt_cmd function. This function is called by the
285 * ring event handler function without any lock held. This function
286 * can be called from both worker thread context and interrupt
287 * context. This function also can be called from another thread which
288 * cleans up the SLI layer objects.
289 * This function copies the contents of the response iocb to the
290 * response iocb memory object provided by the caller of
291 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
292 * sleeps for the iocb completion.
295 lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba,
296 struct lpfc_iocbq *cmdiocbq,
297 struct lpfc_iocbq *rspiocbq)
299 struct bsg_job_data *dd_data;
300 struct fc_bsg_job *job;
302 struct lpfc_dmabuf *bmp, *cmp, *rmp;
303 struct lpfc_nodelist *ndlp;
304 struct lpfc_bsg_iocb *iocb;
306 unsigned int rsp_size;
309 dd_data = cmdiocbq->context1;
311 /* Determine if job has been aborted */
312 spin_lock_irqsave(&phba->ct_ev_lock, flags);
313 job = dd_data->set_job;
315 /* Prevent timeout handling from trying to abort job */
318 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
320 /* Close the timeout handler abort window */
321 spin_lock_irqsave(&phba->hbalock, flags);
322 cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
323 spin_unlock_irqrestore(&phba->hbalock, flags);
325 iocb = &dd_data->context_un.iocb;
328 cmp = cmdiocbq->context2;
329 bmp = cmdiocbq->context3;
330 rsp = &rspiocbq->iocb;
332 /* Copy the completed data or set the error status */
335 if (rsp->ulpStatus) {
336 if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
337 switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
338 case IOERR_SEQUENCE_TIMEOUT:
341 case IOERR_INVALID_RPI:
352 rsp_size = rsp->un.genreq64.bdl.bdeSize;
353 job->reply->reply_payload_rcv_len =
354 lpfc_bsg_copy_data(rmp, &job->reply_payload,
359 lpfc_free_bsg_buffers(phba, cmp);
360 lpfc_free_bsg_buffers(phba, rmp);
361 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
363 lpfc_sli_release_iocbq(phba, cmdiocbq);
367 /* Complete the job if the job is still active */
370 job->reply->result = rc;
377 * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request
378 * @job: fc_bsg_job to handle
381 lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job)
383 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
384 struct lpfc_hba *phba = vport->phba;
385 struct lpfc_rport_data *rdata = job->rport->dd_data;
386 struct lpfc_nodelist *ndlp = rdata->pnode;
387 struct ulp_bde64 *bpl = NULL;
389 struct lpfc_iocbq *cmdiocbq = NULL;
391 struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
394 struct bsg_job_data *dd_data;
400 /* in case no data is transferred */
401 job->reply->reply_payload_rcv_len = 0;
403 /* allocate our bsg tracking structure */
404 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
406 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
407 "2733 Failed allocation of dd_data\n");
412 if (!lpfc_nlp_get(ndlp)) {
417 if (ndlp->nlp_flag & NLP_ELS_SND_MASK) {
422 cmdiocbq = lpfc_sli_get_iocbq(phba);
428 cmd = &cmdiocbq->iocb;
430 bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
435 bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
441 INIT_LIST_HEAD(&bmp->list);
443 bpl = (struct ulp_bde64 *) bmp->virt;
444 request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
445 cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
446 1, bpl, &request_nseg);
451 lpfc_bsg_copy_data(cmp, &job->request_payload,
452 job->request_payload.payload_len, 1);
455 reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
456 rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
463 cmd->un.genreq64.bdl.ulpIoTag32 = 0;
464 cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
465 cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
466 cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
467 cmd->un.genreq64.bdl.bdeSize =
468 (request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
469 cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
470 cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
471 cmd->un.genreq64.w5.hcsw.Dfctl = 0;
472 cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
473 cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;
474 cmd->ulpBdeCount = 1;
476 cmd->ulpClass = CLASS3;
477 cmd->ulpContext = ndlp->nlp_rpi;
478 if (phba->sli_rev == LPFC_SLI_REV4)
479 cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
480 cmd->ulpOwner = OWN_CHIP;
481 cmdiocbq->vport = phba->pport;
482 cmdiocbq->context3 = bmp;
483 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
484 timeout = phba->fc_ratov * 2;
485 cmd->ulpTimeout = timeout;
487 cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp;
488 cmdiocbq->context1 = dd_data;
489 cmdiocbq->context2 = cmp;
490 cmdiocbq->context3 = bmp;
491 cmdiocbq->context_un.ndlp = ndlp;
492 dd_data->type = TYPE_IOCB;
493 dd_data->set_job = job;
494 dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
495 dd_data->context_un.iocb.ndlp = ndlp;
496 dd_data->context_un.iocb.rmp = rmp;
497 job->dd_data = dd_data;
499 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
500 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
504 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
505 writel(creg_val, phba->HCregaddr);
506 readl(phba->HCregaddr); /* flush */
509 iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
511 if (iocb_stat == IOCB_SUCCESS) {
512 spin_lock_irqsave(&phba->hbalock, flags);
513 /* make sure the I/O had not been completed yet */
514 if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
515 /* open up abort window to timeout handler */
516 cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
518 spin_unlock_irqrestore(&phba->hbalock, flags);
519 return 0; /* done for now */
520 } else if (iocb_stat == IOCB_BUSY) {
526 /* iocb failed so cleanup */
530 lpfc_free_bsg_buffers(phba, rmp);
532 lpfc_free_bsg_buffers(phba, cmp);
535 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
538 lpfc_sli_release_iocbq(phba, cmdiocbq);
544 /* make error code available to userspace */
545 job->reply->result = rc;
551 * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler
552 * @phba: Pointer to HBA context object.
553 * @cmdiocbq: Pointer to command iocb.
554 * @rspiocbq: Pointer to response iocb.
556 * This function is the completion handler for iocbs issued using
557 * lpfc_bsg_rport_els_cmp function. This function is called by the
558 * ring event handler function without any lock held. This function
559 * can be called from both worker thread context and interrupt
560 * context. This function also can be called from other thread which
561 * cleans up the SLI layer objects.
562 * This function copies the contents of the response iocb to the
563 * response iocb memory object provided by the caller of
564 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
565 * sleeps for the iocb completion.
568 lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba,
569 struct lpfc_iocbq *cmdiocbq,
570 struct lpfc_iocbq *rspiocbq)
572 struct bsg_job_data *dd_data;
573 struct fc_bsg_job *job;
575 struct lpfc_nodelist *ndlp;
576 struct lpfc_dmabuf *pcmd = NULL, *prsp = NULL;
577 struct fc_bsg_ctels_reply *els_reply;
580 unsigned int rsp_size;
583 dd_data = cmdiocbq->context1;
584 ndlp = dd_data->context_un.iocb.ndlp;
585 cmdiocbq->context1 = ndlp;
587 /* Determine if job has been aborted */
588 spin_lock_irqsave(&phba->ct_ev_lock, flags);
589 job = dd_data->set_job;
591 /* Prevent timeout handling from trying to abort job */
594 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
596 /* Close the timeout handler abort window */
597 spin_lock_irqsave(&phba->hbalock, flags);
598 cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
599 spin_unlock_irqrestore(&phba->hbalock, flags);
601 rsp = &rspiocbq->iocb;
602 pcmd = (struct lpfc_dmabuf *)cmdiocbq->context2;
603 prsp = (struct lpfc_dmabuf *)pcmd->list.next;
605 /* Copy the completed job data or determine the job status if job is
610 if (rsp->ulpStatus == IOSTAT_SUCCESS) {
611 rsp_size = rsp->un.elsreq64.bdl.bdeSize;
612 job->reply->reply_payload_rcv_len =
613 sg_copy_from_buffer(job->reply_payload.sg_list,
614 job->reply_payload.sg_cnt,
617 } else if (rsp->ulpStatus == IOSTAT_LS_RJT) {
618 job->reply->reply_payload_rcv_len =
619 sizeof(struct fc_bsg_ctels_reply);
620 /* LS_RJT data returned in word 4 */
621 rjt_data = (uint8_t *)&rsp->un.ulpWord[4];
622 els_reply = &job->reply->reply_data.ctels_reply;
623 els_reply->status = FC_CTELS_STATUS_REJECT;
624 els_reply->rjt_data.action = rjt_data[3];
625 els_reply->rjt_data.reason_code = rjt_data[2];
626 els_reply->rjt_data.reason_explanation = rjt_data[1];
627 els_reply->rjt_data.vendor_unique = rjt_data[0];
634 lpfc_els_free_iocb(phba, cmdiocbq);
637 /* Complete the job if the job is still active */
640 job->reply->result = rc;
647 * lpfc_bsg_rport_els - send an ELS command from a bsg request
648 * @job: fc_bsg_job to handle
651 lpfc_bsg_rport_els(struct fc_bsg_job *job)
653 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
654 struct lpfc_hba *phba = vport->phba;
655 struct lpfc_rport_data *rdata = job->rport->dd_data;
656 struct lpfc_nodelist *ndlp = rdata->pnode;
659 struct lpfc_iocbq *cmdiocbq;
661 struct bsg_job_data *dd_data;
666 /* in case no data is transferred */
667 job->reply->reply_payload_rcv_len = 0;
669 /* verify the els command is not greater than the
670 * maximum ELS transfer size.
673 if (job->request_payload.payload_len > FCELSSIZE) {
678 /* allocate our bsg tracking structure */
679 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
681 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
682 "2735 Failed allocation of dd_data\n");
687 elscmd = job->request->rqst_data.r_els.els_code;
688 cmdsize = job->request_payload.payload_len;
690 if (!lpfc_nlp_get(ndlp)) {
695 /* We will use the allocated dma buffers by prep els iocb for command
696 * and response to ensure if the job times out and the request is freed,
697 * we won't be dma into memory that is no longer allocated to for the
701 cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp,
702 ndlp->nlp_DID, elscmd);
710 /* Transfer the request payload to allocated command dma buffer */
712 sg_copy_to_buffer(job->request_payload.sg_list,
713 job->request_payload.sg_cnt,
714 ((struct lpfc_dmabuf *)cmdiocbq->context2)->virt,
717 if (phba->sli_rev == LPFC_SLI_REV4)
718 cmdiocbq->iocb.ulpContext = phba->sli4_hba.rpi_ids[rpi];
720 cmdiocbq->iocb.ulpContext = rpi;
721 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
722 cmdiocbq->context1 = dd_data;
723 cmdiocbq->context_un.ndlp = ndlp;
724 cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp;
725 dd_data->type = TYPE_IOCB;
726 dd_data->set_job = job;
727 dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
728 dd_data->context_un.iocb.ndlp = ndlp;
729 dd_data->context_un.iocb.rmp = NULL;
730 job->dd_data = dd_data;
732 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
733 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
737 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
738 writel(creg_val, phba->HCregaddr);
739 readl(phba->HCregaddr); /* flush */
742 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
744 if (rc == IOCB_SUCCESS) {
745 spin_lock_irqsave(&phba->hbalock, flags);
746 /* make sure the I/O had not been completed/released */
747 if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) {
748 /* open up abort window to timeout handler */
749 cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
751 spin_unlock_irqrestore(&phba->hbalock, flags);
752 return 0; /* done for now */
753 } else if (rc == IOCB_BUSY) {
759 /* iocb failed so cleanup */
763 cmdiocbq->context1 = ndlp;
764 lpfc_els_free_iocb(phba, cmdiocbq);
773 /* make error code available to userspace */
774 job->reply->result = rc;
780 * lpfc_bsg_event_free - frees an allocated event structure
781 * @kref: Pointer to a kref.
783 * Called from kref_put. Back cast the kref into an event structure address.
784 * Free any events to get, delete associated nodes, free any events to see,
785 * free any data then free the event itself.
788 lpfc_bsg_event_free(struct kref *kref)
790 struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event,
792 struct event_data *ed;
794 list_del(&evt->node);
796 while (!list_empty(&evt->events_to_get)) {
797 ed = list_entry(evt->events_to_get.next, typeof(*ed), node);
803 while (!list_empty(&evt->events_to_see)) {
804 ed = list_entry(evt->events_to_see.next, typeof(*ed), node);
815 * lpfc_bsg_event_ref - increments the kref for an event
816 * @evt: Pointer to an event structure.
819 lpfc_bsg_event_ref(struct lpfc_bsg_event *evt)
821 kref_get(&evt->kref);
825 * lpfc_bsg_event_unref - Uses kref_put to free an event structure
826 * @evt: Pointer to an event structure.
829 lpfc_bsg_event_unref(struct lpfc_bsg_event *evt)
831 kref_put(&evt->kref, lpfc_bsg_event_free);
835 * lpfc_bsg_event_new - allocate and initialize a event structure
836 * @ev_mask: Mask of events.
837 * @ev_reg_id: Event reg id.
838 * @ev_req_id: Event request id.
840 static struct lpfc_bsg_event *
841 lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id)
843 struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL);
848 INIT_LIST_HEAD(&evt->events_to_get);
849 INIT_LIST_HEAD(&evt->events_to_see);
850 evt->type_mask = ev_mask;
851 evt->req_id = ev_req_id;
852 evt->reg_id = ev_reg_id;
853 evt->wait_time_stamp = jiffies;
855 init_waitqueue_head(&evt->wq);
856 kref_init(&evt->kref);
861 * diag_cmd_data_free - Frees an lpfc dma buffer extension
862 * @phba: Pointer to HBA context object.
863 * @mlist: Pointer to an lpfc dma buffer extension.
866 diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist)
868 struct lpfc_dmabufext *mlast;
869 struct pci_dev *pcidev;
870 struct list_head head, *curr, *next;
872 if ((!mlist) || (!lpfc_is_link_up(phba) &&
873 (phba->link_flag & LS_LOOPBACK_MODE))) {
877 pcidev = phba->pcidev;
878 list_add_tail(&head, &mlist->dma.list);
880 list_for_each_safe(curr, next, &head) {
881 mlast = list_entry(curr, struct lpfc_dmabufext , dma.list);
883 dma_free_coherent(&pcidev->dev,
893 * lpfc_bsg_ct_unsol_event - process an unsolicited CT command
898 * This function is called when an unsolicited CT command is received. It
899 * forwards the event to any processes registered to receive CT events.
902 lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
903 struct lpfc_iocbq *piocbq)
905 uint32_t evt_req_id = 0;
908 struct lpfc_dmabuf *dmabuf = NULL;
909 struct lpfc_bsg_event *evt;
910 struct event_data *evt_dat = NULL;
911 struct lpfc_iocbq *iocbq;
913 struct list_head head;
914 struct ulp_bde64 *bde;
917 struct lpfc_dmabuf *bdeBuf1 = piocbq->context2;
918 struct lpfc_dmabuf *bdeBuf2 = piocbq->context3;
919 struct lpfc_hbq_entry *hbqe;
920 struct lpfc_sli_ct_request *ct_req;
921 struct fc_bsg_job *job = NULL;
922 struct bsg_job_data *dd_data = NULL;
926 INIT_LIST_HEAD(&head);
927 list_add_tail(&head, &piocbq->list);
929 if (piocbq->iocb.ulpBdeCount == 0 ||
930 piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0)
931 goto error_ct_unsol_exit;
933 if (phba->link_state == LPFC_HBA_ERROR ||
934 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)))
935 goto error_ct_unsol_exit;
937 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
940 dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh,
941 piocbq->iocb.un.cont64[0].addrLow);
942 dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr);
945 goto error_ct_unsol_exit;
946 ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt;
947 evt_req_id = ct_req->FsType;
948 cmd = ct_req->CommandResponse.bits.CmdRsp;
949 len = ct_req->CommandResponse.bits.Size;
950 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
951 lpfc_sli_ringpostbuf_put(phba, pring, dmabuf);
953 spin_lock_irqsave(&phba->ct_ev_lock, flags);
954 list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
955 if (!(evt->type_mask & FC_REG_CT_EVENT) ||
956 evt->req_id != evt_req_id)
959 lpfc_bsg_event_ref(evt);
960 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
961 evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL);
962 if (evt_dat == NULL) {
963 spin_lock_irqsave(&phba->ct_ev_lock, flags);
964 lpfc_bsg_event_unref(evt);
965 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
966 "2614 Memory allocation failed for "
971 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
972 /* take accumulated byte count from the last iocbq */
973 iocbq = list_entry(head.prev, typeof(*iocbq), list);
974 evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len;
976 list_for_each_entry(iocbq, &head, list) {
977 for (i = 0; i < iocbq->iocb.ulpBdeCount; i++)
979 iocbq->iocb.un.cont64[i].tus.f.bdeSize;
983 evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL);
984 if (evt_dat->data == NULL) {
985 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
986 "2615 Memory allocation failed for "
987 "CT event data, size %d\n",
990 spin_lock_irqsave(&phba->ct_ev_lock, flags);
991 lpfc_bsg_event_unref(evt);
992 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
993 goto error_ct_unsol_exit;
996 list_for_each_entry(iocbq, &head, list) {
998 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
999 bdeBuf1 = iocbq->context2;
1000 bdeBuf2 = iocbq->context3;
1002 for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) {
1003 if (phba->sli3_options &
1004 LPFC_SLI3_HBQ_ENABLED) {
1006 hbqe = (struct lpfc_hbq_entry *)
1007 &iocbq->iocb.un.ulpWord[0];
1008 size = hbqe->bde.tus.f.bdeSize;
1010 } else if (i == 1) {
1011 hbqe = (struct lpfc_hbq_entry *)
1012 &iocbq->iocb.unsli3.
1014 size = hbqe->bde.tus.f.bdeSize;
1017 if ((offset + size) > evt_dat->len)
1018 size = evt_dat->len - offset;
1020 size = iocbq->iocb.un.cont64[i].
1022 bde = &iocbq->iocb.un.cont64[i];
1023 dma_addr = getPaddr(bde->addrHigh,
1025 dmabuf = lpfc_sli_ringpostbuf_get(phba,
1029 lpfc_printf_log(phba, KERN_ERR,
1030 LOG_LIBDFC, "2616 No dmabuf "
1031 "found for iocbq 0x%p\n",
1033 kfree(evt_dat->data);
1035 spin_lock_irqsave(&phba->ct_ev_lock,
1037 lpfc_bsg_event_unref(evt);
1038 spin_unlock_irqrestore(
1039 &phba->ct_ev_lock, flags);
1040 goto error_ct_unsol_exit;
1042 memcpy((char *)(evt_dat->data) + offset,
1043 dmabuf->virt, size);
1045 if (evt_req_id != SLI_CT_ELX_LOOPBACK &&
1046 !(phba->sli3_options &
1047 LPFC_SLI3_HBQ_ENABLED)) {
1048 lpfc_sli_ringpostbuf_put(phba, pring,
1052 case ELX_LOOPBACK_DATA:
1055 diag_cmd_data_free(phba,
1056 (struct lpfc_dmabufext
1059 case ELX_LOOPBACK_XRI_SETUP:
1060 if ((phba->sli_rev ==
1062 (phba->sli3_options &
1063 LPFC_SLI3_HBQ_ENABLED
1065 lpfc_in_buf_free(phba,
1068 lpfc_post_buffer(phba,
1074 if (!(phba->sli3_options &
1075 LPFC_SLI3_HBQ_ENABLED))
1076 lpfc_post_buffer(phba,
1085 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1086 if (phba->sli_rev == LPFC_SLI_REV4) {
1087 evt_dat->immed_dat = phba->ctx_idx;
1088 phba->ctx_idx = (phba->ctx_idx + 1) % LPFC_CT_CTX_MAX;
1089 /* Provide warning for over-run of the ct_ctx array */
1090 if (phba->ct_ctx[evt_dat->immed_dat].valid ==
1092 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
1093 "2717 CT context array entry "
1094 "[%d] over-run: oxid:x%x, "
1095 "sid:x%x\n", phba->ctx_idx,
1097 evt_dat->immed_dat].oxid,
1099 evt_dat->immed_dat].SID);
1100 phba->ct_ctx[evt_dat->immed_dat].rxid =
1101 piocbq->iocb.ulpContext;
1102 phba->ct_ctx[evt_dat->immed_dat].oxid =
1103 piocbq->iocb.unsli3.rcvsli3.ox_id;
1104 phba->ct_ctx[evt_dat->immed_dat].SID =
1105 piocbq->iocb.un.rcvels.remoteID;
1106 phba->ct_ctx[evt_dat->immed_dat].valid = UNSOL_VALID;
1108 evt_dat->immed_dat = piocbq->iocb.ulpContext;
1110 evt_dat->type = FC_REG_CT_EVENT;
1111 list_add(&evt_dat->node, &evt->events_to_see);
1112 if (evt_req_id == SLI_CT_ELX_LOOPBACK) {
1113 wake_up_interruptible(&evt->wq);
1114 lpfc_bsg_event_unref(evt);
1118 list_move(evt->events_to_see.prev, &evt->events_to_get);
1120 dd_data = (struct bsg_job_data *)evt->dd_data;
1121 job = dd_data->set_job;
1122 dd_data->set_job = NULL;
1123 lpfc_bsg_event_unref(evt);
1125 job->reply->reply_payload_rcv_len = size;
1126 /* make error code available to userspace */
1127 job->reply->result = 0;
1128 job->dd_data = NULL;
1129 /* complete the job back to userspace */
1130 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1132 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1135 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1137 error_ct_unsol_exit:
1138 if (!list_empty(&head))
1140 if ((phba->sli_rev < LPFC_SLI_REV4) &&
1141 (evt_req_id == SLI_CT_ELX_LOOPBACK))
1147 * lpfc_bsg_ct_unsol_abort - handler ct abort to management plane
1148 * @phba: Pointer to HBA context object.
1149 * @dmabuf: pointer to a dmabuf that describes the FC sequence
1151 * This function handles abort to the CT command toward management plane
1154 * If the pending context of a CT command to management plane present, clears
1155 * such context and returns 1 for handled; otherwise, it returns 0 indicating
1156 * no context exists.
1159 lpfc_bsg_ct_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf)
1161 struct fc_frame_header fc_hdr;
1162 struct fc_frame_header *fc_hdr_ptr = &fc_hdr;
1163 int ctx_idx, handled = 0;
1164 uint16_t oxid, rxid;
1167 memcpy(fc_hdr_ptr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
1168 sid = sli4_sid_from_fc_hdr(fc_hdr_ptr);
1169 oxid = be16_to_cpu(fc_hdr_ptr->fh_ox_id);
1170 rxid = be16_to_cpu(fc_hdr_ptr->fh_rx_id);
1172 for (ctx_idx = 0; ctx_idx < LPFC_CT_CTX_MAX; ctx_idx++) {
1173 if (phba->ct_ctx[ctx_idx].valid != UNSOL_VALID)
1175 if (phba->ct_ctx[ctx_idx].rxid != rxid)
1177 if (phba->ct_ctx[ctx_idx].oxid != oxid)
1179 if (phba->ct_ctx[ctx_idx].SID != sid)
1181 phba->ct_ctx[ctx_idx].valid = UNSOL_INVALID;
1188 * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command
1189 * @job: SET_EVENT fc_bsg_job
1192 lpfc_bsg_hba_set_event(struct fc_bsg_job *job)
1194 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
1195 struct lpfc_hba *phba = vport->phba;
1196 struct set_ct_event *event_req;
1197 struct lpfc_bsg_event *evt;
1199 struct bsg_job_data *dd_data = NULL;
1201 unsigned long flags;
1203 if (job->request_len <
1204 sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) {
1205 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1206 "2612 Received SET_CT_EVENT below minimum "
1212 event_req = (struct set_ct_event *)
1213 job->request->rqst_data.h_vendor.vendor_cmd;
1214 ev_mask = ((uint32_t)(unsigned long)event_req->type_mask &
1216 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1217 list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
1218 if (evt->reg_id == event_req->ev_reg_id) {
1219 lpfc_bsg_event_ref(evt);
1220 evt->wait_time_stamp = jiffies;
1221 dd_data = (struct bsg_job_data *)evt->dd_data;
1225 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1227 if (&evt->node == &phba->ct_ev_waiters) {
1228 /* no event waiting struct yet - first call */
1229 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
1230 if (dd_data == NULL) {
1231 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1232 "2734 Failed allocation of dd_data\n");
1236 evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id,
1237 event_req->ev_req_id);
1239 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1240 "2617 Failed allocation of event "
1245 dd_data->type = TYPE_EVT;
1246 dd_data->set_job = NULL;
1247 dd_data->context_un.evt = evt;
1248 evt->dd_data = (void *)dd_data;
1249 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1250 list_add(&evt->node, &phba->ct_ev_waiters);
1251 lpfc_bsg_event_ref(evt);
1252 evt->wait_time_stamp = jiffies;
1253 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1256 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1258 dd_data->set_job = job; /* for unsolicited command */
1259 job->dd_data = dd_data; /* for fc transport timeout callback*/
1260 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1261 return 0; /* call job done later */
1264 if (dd_data != NULL)
1267 job->dd_data = NULL;
1272 * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command
1273 * @job: GET_EVENT fc_bsg_job
1276 lpfc_bsg_hba_get_event(struct fc_bsg_job *job)
1278 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
1279 struct lpfc_hba *phba = vport->phba;
1280 struct get_ct_event *event_req;
1281 struct get_ct_event_reply *event_reply;
1282 struct lpfc_bsg_event *evt, *evt_next;
1283 struct event_data *evt_dat = NULL;
1284 unsigned long flags;
1287 if (job->request_len <
1288 sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) {
1289 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1290 "2613 Received GET_CT_EVENT request below "
1296 event_req = (struct get_ct_event *)
1297 job->request->rqst_data.h_vendor.vendor_cmd;
1299 event_reply = (struct get_ct_event_reply *)
1300 job->reply->reply_data.vendor_reply.vendor_rsp;
1301 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1302 list_for_each_entry_safe(evt, evt_next, &phba->ct_ev_waiters, node) {
1303 if (evt->reg_id == event_req->ev_reg_id) {
1304 if (list_empty(&evt->events_to_get))
1306 lpfc_bsg_event_ref(evt);
1307 evt->wait_time_stamp = jiffies;
1308 evt_dat = list_entry(evt->events_to_get.prev,
1309 struct event_data, node);
1310 list_del(&evt_dat->node);
1314 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1316 /* The app may continue to ask for event data until it gets
1317 * an error indicating that there isn't anymore
1319 if (evt_dat == NULL) {
1320 job->reply->reply_payload_rcv_len = 0;
1325 if (evt_dat->len > job->request_payload.payload_len) {
1326 evt_dat->len = job->request_payload.payload_len;
1327 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1328 "2618 Truncated event data at %d "
1330 job->request_payload.payload_len);
1333 event_reply->type = evt_dat->type;
1334 event_reply->immed_data = evt_dat->immed_dat;
1335 if (evt_dat->len > 0)
1336 job->reply->reply_payload_rcv_len =
1337 sg_copy_from_buffer(job->request_payload.sg_list,
1338 job->request_payload.sg_cnt,
1339 evt_dat->data, evt_dat->len);
1341 job->reply->reply_payload_rcv_len = 0;
1344 kfree(evt_dat->data);
1348 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1349 lpfc_bsg_event_unref(evt);
1350 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1351 job->dd_data = NULL;
1352 job->reply->result = 0;
1357 job->dd_data = NULL;
1358 job->reply->result = rc;
1363 * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler
1364 * @phba: Pointer to HBA context object.
1365 * @cmdiocbq: Pointer to command iocb.
1366 * @rspiocbq: Pointer to response iocb.
1368 * This function is the completion handler for iocbs issued using
1369 * lpfc_issue_ct_rsp_cmp function. This function is called by the
1370 * ring event handler function without any lock held. This function
1371 * can be called from both worker thread context and interrupt
1372 * context. This function also can be called from other thread which
1373 * cleans up the SLI layer objects.
1374 * This function copy the contents of the response iocb to the
1375 * response iocb memory object provided by the caller of
1376 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
1377 * sleeps for the iocb completion.
1380 lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba,
1381 struct lpfc_iocbq *cmdiocbq,
1382 struct lpfc_iocbq *rspiocbq)
1384 struct bsg_job_data *dd_data;
1385 struct fc_bsg_job *job;
1387 struct lpfc_dmabuf *bmp, *cmp;
1388 struct lpfc_nodelist *ndlp;
1389 unsigned long flags;
1392 dd_data = cmdiocbq->context1;
1394 /* Determine if job has been aborted */
1395 spin_lock_irqsave(&phba->ct_ev_lock, flags);
1396 job = dd_data->set_job;
1398 /* Prevent timeout handling from trying to abort job */
1399 job->dd_data = NULL;
1401 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
1403 /* Close the timeout handler abort window */
1404 spin_lock_irqsave(&phba->hbalock, flags);
1405 cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING;
1406 spin_unlock_irqrestore(&phba->hbalock, flags);
1408 ndlp = dd_data->context_un.iocb.ndlp;
1409 cmp = cmdiocbq->context2;
1410 bmp = cmdiocbq->context3;
1411 rsp = &rspiocbq->iocb;
1413 /* Copy the completed job data or set the error status */
1416 if (rsp->ulpStatus) {
1417 if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
1418 switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
1419 case IOERR_SEQUENCE_TIMEOUT:
1422 case IOERR_INVALID_RPI:
1433 job->reply->reply_payload_rcv_len = 0;
1437 lpfc_free_bsg_buffers(phba, cmp);
1438 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
1440 lpfc_sli_release_iocbq(phba, cmdiocbq);
1444 /* Complete the job if the job is still active */
1447 job->reply->result = rc;
1454 * lpfc_issue_ct_rsp - issue a ct response
1455 * @phba: Pointer to HBA context object.
1456 * @job: Pointer to the job object.
1457 * @tag: tag index value into the ports context exchange array.
1458 * @bmp: Pointer to a dma buffer descriptor.
1459 * @num_entry: Number of enties in the bde.
1462 lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag,
1463 struct lpfc_dmabuf *cmp, struct lpfc_dmabuf *bmp,
1467 struct lpfc_iocbq *ctiocb = NULL;
1469 struct lpfc_nodelist *ndlp = NULL;
1470 struct bsg_job_data *dd_data;
1471 unsigned long flags;
1474 /* allocate our bsg tracking structure */
1475 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
1477 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1478 "2736 Failed allocation of dd_data\n");
1483 /* Allocate buffer for command iocb */
1484 ctiocb = lpfc_sli_get_iocbq(phba);
1490 icmd = &ctiocb->iocb;
1491 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
1492 icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
1493 icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys);
1494 icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
1495 icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64));
1496 icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
1497 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
1498 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL;
1499 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
1501 /* Fill in rest of iocb */
1502 icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
1503 icmd->ulpBdeCount = 1;
1505 icmd->ulpClass = CLASS3;
1506 if (phba->sli_rev == LPFC_SLI_REV4) {
1507 /* Do not issue unsol response if oxid not marked as valid */
1508 if (phba->ct_ctx[tag].valid != UNSOL_VALID) {
1510 goto issue_ct_rsp_exit;
1512 icmd->ulpContext = phba->ct_ctx[tag].rxid;
1513 icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid;
1514 ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID);
1516 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
1517 "2721 ndlp null for oxid %x SID %x\n",
1519 phba->ct_ctx[tag].SID);
1521 goto issue_ct_rsp_exit;
1524 /* Check if the ndlp is active */
1525 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
1527 goto issue_ct_rsp_exit;
1530 /* get a refernece count so the ndlp doesn't go away while
1533 if (!lpfc_nlp_get(ndlp)) {
1535 goto issue_ct_rsp_exit;
1538 icmd->un.ulpWord[3] =
1539 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
1541 /* The exchange is done, mark the entry as invalid */
1542 phba->ct_ctx[tag].valid = UNSOL_INVALID;
1544 icmd->ulpContext = (ushort) tag;
1546 icmd->ulpTimeout = phba->fc_ratov * 2;
1548 /* Xmit CT response on exchange <xid> */
1549 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1550 "2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n",
1551 icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state);
1553 ctiocb->iocb_cmpl = NULL;
1554 ctiocb->iocb_flag |= LPFC_IO_LIBDFC;
1555 ctiocb->vport = phba->pport;
1556 ctiocb->context1 = dd_data;
1557 ctiocb->context2 = cmp;
1558 ctiocb->context3 = bmp;
1559 ctiocb->context_un.ndlp = ndlp;
1560 ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp;
1562 dd_data->type = TYPE_IOCB;
1563 dd_data->set_job = job;
1564 dd_data->context_un.iocb.cmdiocbq = ctiocb;
1565 dd_data->context_un.iocb.ndlp = ndlp;
1566 dd_data->context_un.iocb.rmp = NULL;
1567 job->dd_data = dd_data;
1569 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
1570 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1572 goto issue_ct_rsp_exit;
1574 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1575 writel(creg_val, phba->HCregaddr);
1576 readl(phba->HCregaddr); /* flush */
1579 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
1581 if (rc == IOCB_SUCCESS) {
1582 spin_lock_irqsave(&phba->hbalock, flags);
1583 /* make sure the I/O had not been completed/released */
1584 if (ctiocb->iocb_flag & LPFC_IO_LIBDFC) {
1585 /* open up abort window to timeout handler */
1586 ctiocb->iocb_flag |= LPFC_IO_CMD_OUTSTANDING;
1588 spin_unlock_irqrestore(&phba->hbalock, flags);
1589 return 0; /* done for now */
1592 /* iocb failed so cleanup */
1593 job->dd_data = NULL;
1596 lpfc_sli_release_iocbq(phba, ctiocb);
1604 * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command
1605 * @job: SEND_MGMT_RESP fc_bsg_job
1608 lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job)
1610 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
1611 struct lpfc_hba *phba = vport->phba;
1612 struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *)
1613 job->request->rqst_data.h_vendor.vendor_cmd;
1614 struct ulp_bde64 *bpl;
1615 struct lpfc_dmabuf *bmp = NULL, *cmp = NULL;
1617 uint32_t tag = mgmt_resp->tag;
1618 unsigned long reqbfrcnt =
1619 (unsigned long)job->request_payload.payload_len;
1622 /* in case no data is transferred */
1623 job->reply->reply_payload_rcv_len = 0;
1625 if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) {
1627 goto send_mgmt_rsp_exit;
1630 bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1633 goto send_mgmt_rsp_exit;
1636 bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
1639 goto send_mgmt_rsp_free_bmp;
1642 INIT_LIST_HEAD(&bmp->list);
1643 bpl = (struct ulp_bde64 *) bmp->virt;
1644 bpl_entries = (LPFC_BPL_SIZE/sizeof(struct ulp_bde64));
1645 cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
1646 1, bpl, &bpl_entries);
1649 goto send_mgmt_rsp_free_bmp;
1651 lpfc_bsg_copy_data(cmp, &job->request_payload,
1652 job->request_payload.payload_len, 1);
1654 rc = lpfc_issue_ct_rsp(phba, job, tag, cmp, bmp, bpl_entries);
1656 if (rc == IOCB_SUCCESS)
1657 return 0; /* done for now */
1661 lpfc_free_bsg_buffers(phba, cmp);
1663 send_mgmt_rsp_free_bmp:
1665 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
1668 /* make error code available to userspace */
1669 job->reply->result = rc;
1670 job->dd_data = NULL;
1675 * lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode
1676 * @phba: Pointer to HBA context object.
1678 * This function is responsible for preparing driver for diag loopback
1682 lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba)
1684 struct lpfc_vport **vports;
1685 struct Scsi_Host *shost;
1686 struct lpfc_sli *psli;
1687 struct lpfc_sli_ring *pring;
1694 pring = &psli->ring[LPFC_FCP_RING];
1698 if ((phba->link_state == LPFC_HBA_ERROR) ||
1699 (psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
1700 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
1703 vports = lpfc_create_vport_work_array(phba);
1705 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1706 shost = lpfc_shost_from_vport(vports[i]);
1707 scsi_block_requests(shost);
1709 lpfc_destroy_vport_work_array(phba, vports);
1711 shost = lpfc_shost_from_vport(phba->pport);
1712 scsi_block_requests(shost);
1715 while (!list_empty(&pring->txcmplq)) {
1716 if (i++ > 500) /* wait up to 5 seconds */
1724 * lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode
1725 * @phba: Pointer to HBA context object.
1727 * This function is responsible for driver exit processing of setting up
1728 * diag loopback mode on device.
1731 lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba)
1733 struct Scsi_Host *shost;
1734 struct lpfc_vport **vports;
1737 vports = lpfc_create_vport_work_array(phba);
1739 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1740 shost = lpfc_shost_from_vport(vports[i]);
1741 scsi_unblock_requests(shost);
1743 lpfc_destroy_vport_work_array(phba, vports);
1745 shost = lpfc_shost_from_vport(phba->pport);
1746 scsi_unblock_requests(shost);
1752 * lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command
1753 * @phba: Pointer to HBA context object.
1754 * @job: LPFC_BSG_VENDOR_DIAG_MODE
1756 * This function is responsible for placing an sli3 port into diagnostic
1757 * loopback mode in order to perform a diagnostic loopback test.
1758 * All new scsi requests are blocked, a small delay is used to allow the
1759 * scsi requests to complete then the link is brought down. If the link is
1760 * is placed in loopback mode then scsi requests are again allowed
1761 * so the scsi mid-layer doesn't give up on the port.
1762 * All of this is done in-line.
1765 lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
1767 struct diag_mode_set *loopback_mode;
1768 uint32_t link_flags;
1770 LPFC_MBOXQ_t *pmboxq = NULL;
1771 int mbxstatus = MBX_SUCCESS;
1775 /* no data to return just the return code */
1776 job->reply->reply_payload_rcv_len = 0;
1778 if (job->request_len < sizeof(struct fc_bsg_request) +
1779 sizeof(struct diag_mode_set)) {
1780 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1781 "2738 Received DIAG MODE request size:%d "
1782 "below the minimum size:%d\n",
1784 (int)(sizeof(struct fc_bsg_request) +
1785 sizeof(struct diag_mode_set)));
1790 rc = lpfc_bsg_diag_mode_enter(phba);
1794 /* bring the link to diagnostic mode */
1795 loopback_mode = (struct diag_mode_set *)
1796 job->request->rqst_data.h_vendor.vendor_cmd;
1797 link_flags = loopback_mode->type;
1798 timeout = loopback_mode->timeout * 100;
1800 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1803 goto loopback_mode_exit;
1805 memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1806 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
1807 pmboxq->u.mb.mbxOwner = OWN_HOST;
1809 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
1811 if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) {
1812 /* wait for link down before proceeding */
1814 while (phba->link_state != LPFC_LINK_DOWN) {
1815 if (i++ > timeout) {
1817 goto loopback_mode_exit;
1822 memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1823 if (link_flags == INTERNAL_LOOP_BACK)
1824 pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
1826 pmboxq->u.mb.un.varInitLnk.link_flags =
1827 FLAGS_TOPOLOGY_MODE_LOOP;
1829 pmboxq->u.mb.mbxCommand = MBX_INIT_LINK;
1830 pmboxq->u.mb.mbxOwner = OWN_HOST;
1832 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
1835 if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus))
1838 spin_lock_irq(&phba->hbalock);
1839 phba->link_flag |= LS_LOOPBACK_MODE;
1840 spin_unlock_irq(&phba->hbalock);
1841 /* wait for the link attention interrupt */
1845 while (phba->link_state != LPFC_HBA_READY) {
1846 if (i++ > timeout) {
1859 lpfc_bsg_diag_mode_exit(phba);
1862 * Let SLI layer release mboxq if mbox command completed after timeout.
1864 if (pmboxq && mbxstatus != MBX_TIMEOUT)
1865 mempool_free(pmboxq, phba->mbox_mem_pool);
1868 /* make error code available to userspace */
1869 job->reply->result = rc;
1870 /* complete the job back to userspace if no error */
1877 * lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state
1878 * @phba: Pointer to HBA context object.
1879 * @diag: Flag for set link to diag or nomral operation state.
1881 * This function is responsible for issuing a sli4 mailbox command for setting
1882 * link to either diag state or normal operation state.
1885 lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag)
1887 LPFC_MBOXQ_t *pmboxq;
1888 struct lpfc_mbx_set_link_diag_state *link_diag_state;
1889 uint32_t req_len, alloc_len;
1890 int mbxstatus = MBX_SUCCESS, rc;
1892 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1896 req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
1897 sizeof(struct lpfc_sli4_cfg_mhdr));
1898 alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
1899 LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
1900 req_len, LPFC_SLI4_MBX_EMBED);
1901 if (alloc_len != req_len) {
1903 goto link_diag_state_set_out;
1905 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
1906 "3128 Set link to diagnostic state:x%x (x%x/x%x)\n",
1907 diag, phba->sli4_hba.lnk_info.lnk_tp,
1908 phba->sli4_hba.lnk_info.lnk_no);
1910 link_diag_state = &pmboxq->u.mqe.un.link_diag_state;
1911 bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req,
1912 LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE);
1913 bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req,
1914 phba->sli4_hba.lnk_info.lnk_no);
1915 bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req,
1916 phba->sli4_hba.lnk_info.lnk_tp);
1918 bf_set(lpfc_mbx_set_diag_state_diag,
1919 &link_diag_state->u.req, 1);
1921 bf_set(lpfc_mbx_set_diag_state_diag,
1922 &link_diag_state->u.req, 0);
1924 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
1926 if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0))
1931 link_diag_state_set_out:
1932 if (pmboxq && (mbxstatus != MBX_TIMEOUT))
1933 mempool_free(pmboxq, phba->mbox_mem_pool);
1939 * lpfc_sli4_bsg_set_internal_loopback - set sli4 internal loopback diagnostic
1940 * @phba: Pointer to HBA context object.
1942 * This function is responsible for issuing a sli4 mailbox command for setting
1943 * up internal loopback diagnostic.
1946 lpfc_sli4_bsg_set_internal_loopback(struct lpfc_hba *phba)
1948 LPFC_MBOXQ_t *pmboxq;
1949 uint32_t req_len, alloc_len;
1950 struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback;
1951 int mbxstatus = MBX_SUCCESS, rc = 0;
1953 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1956 req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) -
1957 sizeof(struct lpfc_sli4_cfg_mhdr));
1958 alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
1959 LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK,
1960 req_len, LPFC_SLI4_MBX_EMBED);
1961 if (alloc_len != req_len) {
1962 mempool_free(pmboxq, phba->mbox_mem_pool);
1965 link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback;
1966 bf_set(lpfc_mbx_set_diag_state_link_num,
1967 &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_no);
1968 bf_set(lpfc_mbx_set_diag_state_link_type,
1969 &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_tp);
1970 bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req,
1971 LPFC_DIAG_LOOPBACK_TYPE_INTERNAL);
1973 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
1974 if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) {
1975 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
1976 "3127 Failed setup loopback mode mailbox "
1977 "command, rc:x%x, status:x%x\n", mbxstatus,
1978 pmboxq->u.mb.mbxStatus);
1981 if (pmboxq && (mbxstatus != MBX_TIMEOUT))
1982 mempool_free(pmboxq, phba->mbox_mem_pool);
1987 * lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic
1988 * @phba: Pointer to HBA context object.
1990 * This function set up SLI4 FC port registrations for diagnostic run, which
1991 * includes all the rpis, vfi, and also vpi.
1994 lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba)
1998 if (phba->pport->fc_flag & FC_VFI_REGISTERED) {
1999 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2000 "3136 Port still had vfi registered: "
2001 "mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n",
2002 phba->pport->fc_myDID, phba->fcf.fcfi,
2003 phba->sli4_hba.vfi_ids[phba->pport->vfi],
2004 phba->vpi_ids[phba->pport->vpi]);
2007 rc = lpfc_issue_reg_vfi(phba->pport);
2012 * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command
2013 * @phba: Pointer to HBA context object.
2014 * @job: LPFC_BSG_VENDOR_DIAG_MODE
2016 * This function is responsible for placing an sli4 port into diagnostic
2017 * loopback mode in order to perform a diagnostic loopback test.
2020 lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
2022 struct diag_mode_set *loopback_mode;
2023 uint32_t link_flags, timeout;
2026 /* no data to return just the return code */
2027 job->reply->reply_payload_rcv_len = 0;
2029 if (job->request_len < sizeof(struct fc_bsg_request) +
2030 sizeof(struct diag_mode_set)) {
2031 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2032 "3011 Received DIAG MODE request size:%d "
2033 "below the minimum size:%d\n",
2035 (int)(sizeof(struct fc_bsg_request) +
2036 sizeof(struct diag_mode_set)));
2041 rc = lpfc_bsg_diag_mode_enter(phba);
2045 /* indicate we are in loobpack diagnostic mode */
2046 spin_lock_irq(&phba->hbalock);
2047 phba->link_flag |= LS_LOOPBACK_MODE;
2048 spin_unlock_irq(&phba->hbalock);
2050 /* reset port to start frome scratch */
2051 rc = lpfc_selective_reset(phba);
2055 /* bring the link to diagnostic mode */
2056 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2057 "3129 Bring link to diagnostic state.\n");
2058 loopback_mode = (struct diag_mode_set *)
2059 job->request->rqst_data.h_vendor.vendor_cmd;
2060 link_flags = loopback_mode->type;
2061 timeout = loopback_mode->timeout * 100;
2063 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
2065 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2066 "3130 Failed to bring link to diagnostic "
2067 "state, rc:x%x\n", rc);
2068 goto loopback_mode_exit;
2071 /* wait for link down before proceeding */
2073 while (phba->link_state != LPFC_LINK_DOWN) {
2074 if (i++ > timeout) {
2076 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2077 "3131 Timeout waiting for link to "
2078 "diagnostic mode, timeout:%d ms\n",
2080 goto loopback_mode_exit;
2085 /* set up loopback mode */
2086 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2087 "3132 Set up loopback mode:x%x\n", link_flags);
2089 if (link_flags == INTERNAL_LOOP_BACK)
2090 rc = lpfc_sli4_bsg_set_internal_loopback(phba);
2091 else if (link_flags == EXTERNAL_LOOP_BACK)
2092 rc = lpfc_hba_init_link_fc_topology(phba,
2093 FLAGS_TOPOLOGY_MODE_PT_PT,
2097 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
2098 "3141 Loopback mode:x%x not supported\n",
2100 goto loopback_mode_exit;
2104 /* wait for the link attention interrupt */
2107 while (phba->link_state < LPFC_LINK_UP) {
2108 if (i++ > timeout) {
2110 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2111 "3137 Timeout waiting for link up "
2112 "in loopback mode, timeout:%d ms\n",
2120 /* port resource registration setup for loopback diagnostic */
2122 /* set up a none zero myDID for loopback test */
2123 phba->pport->fc_myDID = 1;
2124 rc = lpfc_sli4_diag_fcport_reg_setup(phba);
2126 goto loopback_mode_exit;
2129 /* wait for the port ready */
2132 while (phba->link_state != LPFC_HBA_READY) {
2133 if (i++ > timeout) {
2135 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2136 "3133 Timeout waiting for port "
2137 "loopback mode ready, timeout:%d ms\n",
2146 /* clear loopback diagnostic mode */
2148 spin_lock_irq(&phba->hbalock);
2149 phba->link_flag &= ~LS_LOOPBACK_MODE;
2150 spin_unlock_irq(&phba->hbalock);
2152 lpfc_bsg_diag_mode_exit(phba);
2155 /* make error code available to userspace */
2156 job->reply->result = rc;
2157 /* complete the job back to userspace if no error */
2164 * lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode
2165 * @job: LPFC_BSG_VENDOR_DIAG_MODE
2167 * This function is responsible for responding to check and dispatch bsg diag
2168 * command from the user to proper driver action routines.
2171 lpfc_bsg_diag_loopback_mode(struct fc_bsg_job *job)
2173 struct Scsi_Host *shost;
2174 struct lpfc_vport *vport;
2175 struct lpfc_hba *phba;
2181 vport = (struct lpfc_vport *)job->shost->hostdata;
2188 if (phba->sli_rev < LPFC_SLI_REV4)
2189 rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job);
2190 else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
2191 LPFC_SLI_INTF_IF_TYPE_2)
2192 rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job);
2200 * lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode
2201 * @job: LPFC_BSG_VENDOR_DIAG_MODE_END
2203 * This function is responsible for responding to check and dispatch bsg diag
2204 * command from the user to proper driver action routines.
2207 lpfc_sli4_bsg_diag_mode_end(struct fc_bsg_job *job)
2209 struct Scsi_Host *shost;
2210 struct lpfc_vport *vport;
2211 struct lpfc_hba *phba;
2212 struct diag_mode_set *loopback_mode_end_cmd;
2219 vport = (struct lpfc_vport *)job->shost->hostdata;
2226 if (phba->sli_rev < LPFC_SLI_REV4)
2228 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2229 LPFC_SLI_INTF_IF_TYPE_2)
2232 /* clear loopback diagnostic mode */
2233 spin_lock_irq(&phba->hbalock);
2234 phba->link_flag &= ~LS_LOOPBACK_MODE;
2235 spin_unlock_irq(&phba->hbalock);
2236 loopback_mode_end_cmd = (struct diag_mode_set *)
2237 job->request->rqst_data.h_vendor.vendor_cmd;
2238 timeout = loopback_mode_end_cmd->timeout * 100;
2240 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
2242 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2243 "3139 Failed to bring link to diagnostic "
2244 "state, rc:x%x\n", rc);
2245 goto loopback_mode_end_exit;
2248 /* wait for link down before proceeding */
2250 while (phba->link_state != LPFC_LINK_DOWN) {
2251 if (i++ > timeout) {
2252 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
2253 "3140 Timeout waiting for link to "
2254 "diagnostic mode_end, timeout:%d ms\n",
2256 /* there is nothing much we can do here */
2262 /* reset port resource registrations */
2263 rc = lpfc_selective_reset(phba);
2264 phba->pport->fc_myDID = 0;
2266 loopback_mode_end_exit:
2267 /* make return code available to userspace */
2268 job->reply->result = rc;
2269 /* complete the job back to userspace if no error */
2276 * lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test
2277 * @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST
2279 * This function is to perform SLI4 diag link test request from the user
2283 lpfc_sli4_bsg_link_diag_test(struct fc_bsg_job *job)
2285 struct Scsi_Host *shost;
2286 struct lpfc_vport *vport;
2287 struct lpfc_hba *phba;
2288 LPFC_MBOXQ_t *pmboxq;
2289 struct sli4_link_diag *link_diag_test_cmd;
2290 uint32_t req_len, alloc_len;
2291 struct lpfc_mbx_run_link_diag_test *run_link_diag_test;
2292 union lpfc_sli4_cfg_shdr *shdr;
2293 uint32_t shdr_status, shdr_add_status;
2294 struct diag_status *diag_status_reply;
2295 int mbxstatus, rc = 0;
2302 vport = (struct lpfc_vport *)job->shost->hostdata;
2313 if (phba->sli_rev < LPFC_SLI_REV4) {
2317 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2318 LPFC_SLI_INTF_IF_TYPE_2) {
2323 if (job->request_len < sizeof(struct fc_bsg_request) +
2324 sizeof(struct sli4_link_diag)) {
2325 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2326 "3013 Received LINK DIAG TEST request "
2327 " size:%d below the minimum size:%d\n",
2329 (int)(sizeof(struct fc_bsg_request) +
2330 sizeof(struct sli4_link_diag)));
2335 rc = lpfc_bsg_diag_mode_enter(phba);
2339 link_diag_test_cmd = (struct sli4_link_diag *)
2340 job->request->rqst_data.h_vendor.vendor_cmd;
2342 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
2347 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2350 goto link_diag_test_exit;
2353 req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
2354 sizeof(struct lpfc_sli4_cfg_mhdr));
2355 alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2356 LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
2357 req_len, LPFC_SLI4_MBX_EMBED);
2358 if (alloc_len != req_len) {
2360 goto link_diag_test_exit;
2362 run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test;
2363 bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req,
2364 phba->sli4_hba.lnk_info.lnk_no);
2365 bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req,
2366 phba->sli4_hba.lnk_info.lnk_tp);
2367 bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req,
2368 link_diag_test_cmd->test_id);
2369 bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req,
2370 link_diag_test_cmd->loops);
2371 bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req,
2372 link_diag_test_cmd->test_version);
2373 bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req,
2374 link_diag_test_cmd->error_action);
2376 mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2378 shdr = (union lpfc_sli4_cfg_shdr *)
2379 &pmboxq->u.mqe.un.sli4_config.header.cfg_shdr;
2380 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
2381 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
2382 if (shdr_status || shdr_add_status || mbxstatus) {
2383 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
2384 "3010 Run link diag test mailbox failed with "
2385 "mbx_status x%x status x%x, add_status x%x\n",
2386 mbxstatus, shdr_status, shdr_add_status);
2389 diag_status_reply = (struct diag_status *)
2390 job->reply->reply_data.vendor_reply.vendor_rsp;
2392 if (job->reply_len <
2393 sizeof(struct fc_bsg_request) + sizeof(struct diag_status)) {
2394 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
2395 "3012 Received Run link diag test reply "
2396 "below minimum size (%d): reply_len:%d\n",
2397 (int)(sizeof(struct fc_bsg_request) +
2398 sizeof(struct diag_status)),
2404 diag_status_reply->mbox_status = mbxstatus;
2405 diag_status_reply->shdr_status = shdr_status;
2406 diag_status_reply->shdr_add_status = shdr_add_status;
2408 link_diag_test_exit:
2409 rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
2412 mempool_free(pmboxq, phba->mbox_mem_pool);
2414 lpfc_bsg_diag_mode_exit(phba);
2417 /* make error code available to userspace */
2418 job->reply->result = rc;
2419 /* complete the job back to userspace if no error */
2426 * lpfcdiag_loop_self_reg - obtains a remote port login id
2427 * @phba: Pointer to HBA context object
2428 * @rpi: Pointer to a remote port login id
2430 * This function obtains a remote port login id so the diag loopback test
2431 * can send and receive its own unsolicited CT command.
2433 static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi)
2436 struct lpfc_dmabuf *dmabuff;
2439 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2443 if (phba->sli_rev < LPFC_SLI_REV4)
2444 status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID,
2445 (uint8_t *)&phba->pport->fc_sparam,
2448 *rpi = lpfc_sli4_alloc_rpi(phba);
2449 status = lpfc_reg_rpi(phba, phba->pport->vpi,
2450 phba->pport->fc_myDID,
2451 (uint8_t *)&phba->pport->fc_sparam,
2456 mempool_free(mbox, phba->mbox_mem_pool);
2457 if (phba->sli_rev == LPFC_SLI_REV4)
2458 lpfc_sli4_free_rpi(phba, *rpi);
2462 dmabuff = (struct lpfc_dmabuf *) mbox->context1;
2463 mbox->context1 = NULL;
2464 mbox->context2 = NULL;
2465 status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
2467 if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
2468 lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
2470 if (status != MBX_TIMEOUT)
2471 mempool_free(mbox, phba->mbox_mem_pool);
2472 if (phba->sli_rev == LPFC_SLI_REV4)
2473 lpfc_sli4_free_rpi(phba, *rpi);
2477 if (phba->sli_rev < LPFC_SLI_REV4)
2478 *rpi = mbox->u.mb.un.varWords[0];
2480 lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
2482 mempool_free(mbox, phba->mbox_mem_pool);
2487 * lpfcdiag_loop_self_unreg - unregs from the rpi
2488 * @phba: Pointer to HBA context object
2489 * @rpi: Remote port login id
2491 * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg
2493 static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi)
2498 /* Allocate mboxq structure */
2499 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2503 if (phba->sli_rev < LPFC_SLI_REV4)
2504 lpfc_unreg_login(phba, 0, rpi, mbox);
2506 lpfc_unreg_login(phba, phba->pport->vpi,
2507 phba->sli4_hba.rpi_ids[rpi], mbox);
2509 status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
2511 if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
2512 if (status != MBX_TIMEOUT)
2513 mempool_free(mbox, phba->mbox_mem_pool);
2516 mempool_free(mbox, phba->mbox_mem_pool);
2517 if (phba->sli_rev == LPFC_SLI_REV4)
2518 lpfc_sli4_free_rpi(phba, rpi);
2523 * lpfcdiag_loop_get_xri - obtains the transmit and receive ids
2524 * @phba: Pointer to HBA context object
2525 * @rpi: Remote port login id
2526 * @txxri: Pointer to transmit exchange id
2527 * @rxxri: Pointer to response exchabge id
2529 * This function obtains the transmit and receive ids required to send
2530 * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp
2531 * flags are used to the unsolicted response handler is able to process
2532 * the ct command sent on the same port.
2534 static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi,
2535 uint16_t *txxri, uint16_t * rxxri)
2537 struct lpfc_bsg_event *evt;
2538 struct lpfc_iocbq *cmdiocbq, *rspiocbq;
2540 struct lpfc_dmabuf *dmabuf;
2541 struct ulp_bde64 *bpl = NULL;
2542 struct lpfc_sli_ct_request *ctreq = NULL;
2545 int iocb_stat = IOCB_SUCCESS;
2546 unsigned long flags;
2550 evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
2551 SLI_CT_ELX_LOOPBACK);
2555 spin_lock_irqsave(&phba->ct_ev_lock, flags);
2556 list_add(&evt->node, &phba->ct_ev_waiters);
2557 lpfc_bsg_event_ref(evt);
2558 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
2560 cmdiocbq = lpfc_sli_get_iocbq(phba);
2561 rspiocbq = lpfc_sli_get_iocbq(phba);
2563 dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2565 dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys);
2567 INIT_LIST_HEAD(&dmabuf->list);
2568 bpl = (struct ulp_bde64 *) dmabuf->virt;
2569 memset(bpl, 0, sizeof(*bpl));
2570 ctreq = (struct lpfc_sli_ct_request *)(bpl + 1);
2572 le32_to_cpu(putPaddrHigh(dmabuf->phys +
2575 le32_to_cpu(putPaddrLow(dmabuf->phys +
2577 bpl->tus.f.bdeFlags = 0;
2578 bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ;
2579 bpl->tus.w = le32_to_cpu(bpl->tus.w);
2583 if (cmdiocbq == NULL || rspiocbq == NULL ||
2584 dmabuf == NULL || bpl == NULL || ctreq == NULL ||
2585 dmabuf->virt == NULL) {
2587 goto err_get_xri_exit;
2590 cmd = &cmdiocbq->iocb;
2591 rsp = &rspiocbq->iocb;
2593 memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
2595 ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
2596 ctreq->RevisionId.bits.InId = 0;
2597 ctreq->FsType = SLI_CT_ELX_LOOPBACK;
2598 ctreq->FsSubType = 0;
2599 ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP;
2600 ctreq->CommandResponse.bits.Size = 0;
2603 cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys);
2604 cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys);
2605 cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
2606 cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl);
2608 cmd->un.xseq64.w5.hcsw.Fctl = LA;
2609 cmd->un.xseq64.w5.hcsw.Dfctl = 0;
2610 cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
2611 cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
2613 cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR;
2614 cmd->ulpBdeCount = 1;
2616 cmd->ulpClass = CLASS3;
2617 cmd->ulpContext = rpi;
2619 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
2620 cmdiocbq->vport = phba->pport;
2621 cmdiocbq->iocb_cmpl = NULL;
2623 iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
2625 (phba->fc_ratov * 2)
2626 + LPFC_DRVR_TIMEOUT);
2627 if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOSTAT_SUCCESS)) {
2629 goto err_get_xri_exit;
2631 *txxri = rsp->ulpContext;
2634 evt->wait_time_stamp = jiffies;
2635 time_left = wait_event_interruptible_timeout(
2636 evt->wq, !list_empty(&evt->events_to_see),
2637 msecs_to_jiffies(1000 *
2638 ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
2639 if (list_empty(&evt->events_to_see))
2640 ret_val = (time_left) ? -EINTR : -ETIMEDOUT;
2642 spin_lock_irqsave(&phba->ct_ev_lock, flags);
2643 list_move(evt->events_to_see.prev, &evt->events_to_get);
2644 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
2645 *rxxri = (list_entry(evt->events_to_get.prev,
2646 typeof(struct event_data),
2652 spin_lock_irqsave(&phba->ct_ev_lock, flags);
2653 lpfc_bsg_event_unref(evt); /* release ref */
2654 lpfc_bsg_event_unref(evt); /* delete */
2655 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
2659 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2663 if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT))
2664 lpfc_sli_release_iocbq(phba, cmdiocbq);
2666 lpfc_sli_release_iocbq(phba, rspiocbq);
2671 * lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers
2672 * @phba: Pointer to HBA context object
2674 * This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and.
2675 * returns the pointer to the buffer.
2677 static struct lpfc_dmabuf *
2678 lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba)
2680 struct lpfc_dmabuf *dmabuf;
2681 struct pci_dev *pcidev = phba->pcidev;
2683 /* allocate dma buffer struct */
2684 dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2688 INIT_LIST_HEAD(&dmabuf->list);
2690 /* now, allocate dma buffer */
2691 dmabuf->virt = dma_zalloc_coherent(&pcidev->dev, BSG_MBOX_SIZE,
2692 &(dmabuf->phys), GFP_KERNEL);
2694 if (!dmabuf->virt) {
2703 * lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer
2704 * @phba: Pointer to HBA context object.
2705 * @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor.
2707 * This routine just simply frees a dma buffer and its associated buffer
2708 * descriptor referred by @dmabuf.
2711 lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf)
2713 struct pci_dev *pcidev = phba->pcidev;
2719 dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE,
2720 dmabuf->virt, dmabuf->phys);
2726 * lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers
2727 * @phba: Pointer to HBA context object.
2728 * @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs.
2730 * This routine just simply frees all dma buffers and their associated buffer
2731 * descriptors referred by @dmabuf_list.
2734 lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba,
2735 struct list_head *dmabuf_list)
2737 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
2739 if (list_empty(dmabuf_list))
2742 list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) {
2743 list_del_init(&dmabuf->list);
2744 lpfc_bsg_dma_page_free(phba, dmabuf);
2750 * diag_cmd_data_alloc - fills in a bde struct with dma buffers
2751 * @phba: Pointer to HBA context object
2752 * @bpl: Pointer to 64 bit bde structure
2753 * @size: Number of bytes to process
2754 * @nocopydata: Flag to copy user data into the allocated buffer
2756 * This function allocates page size buffers and populates an lpfc_dmabufext.
2757 * If allowed the user data pointed to with indataptr is copied into the kernel
2758 * memory. The chained list of page size buffers is returned.
2760 static struct lpfc_dmabufext *
2761 diag_cmd_data_alloc(struct lpfc_hba *phba,
2762 struct ulp_bde64 *bpl, uint32_t size,
2765 struct lpfc_dmabufext *mlist = NULL;
2766 struct lpfc_dmabufext *dmp;
2767 int cnt, offset = 0, i = 0;
2768 struct pci_dev *pcidev;
2770 pcidev = phba->pcidev;
2773 /* We get chunks of 4K */
2774 if (size > BUF_SZ_4K)
2779 /* allocate struct lpfc_dmabufext buffer header */
2780 dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL);
2784 INIT_LIST_HEAD(&dmp->dma.list);
2786 /* Queue it to a linked list */
2788 list_add_tail(&dmp->dma.list, &mlist->dma.list);
2792 /* allocate buffer */
2793 dmp->dma.virt = dma_alloc_coherent(&pcidev->dev,
2804 bpl->tus.f.bdeFlags = 0;
2805 pci_dma_sync_single_for_device(phba->pcidev,
2806 dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE);
2809 memset((uint8_t *)dmp->dma.virt, 0, cnt);
2810 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
2813 /* build buffer ptr list for IOCB */
2814 bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys));
2815 bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys));
2816 bpl->tus.f.bdeSize = (ushort) cnt;
2817 bpl->tus.w = le32_to_cpu(bpl->tus.w);
2830 diag_cmd_data_free(phba, mlist);
2835 * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd
2836 * @phba: Pointer to HBA context object
2837 * @rxxri: Receive exchange id
2838 * @len: Number of data bytes
2840 * This function allocates and posts a data buffer of sufficient size to receive
2841 * an unsolicted CT command.
2843 static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri,
2846 struct lpfc_sli *psli = &phba->sli;
2847 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
2848 struct lpfc_iocbq *cmdiocbq;
2850 struct list_head head, *curr, *next;
2851 struct lpfc_dmabuf *rxbmp;
2852 struct lpfc_dmabuf *dmp;
2853 struct lpfc_dmabuf *mp[2] = {NULL, NULL};
2854 struct ulp_bde64 *rxbpl = NULL;
2856 struct lpfc_dmabufext *rxbuffer = NULL;
2861 cmdiocbq = lpfc_sli_get_iocbq(phba);
2862 rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2863 if (rxbmp != NULL) {
2864 rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys);
2866 INIT_LIST_HEAD(&rxbmp->list);
2867 rxbpl = (struct ulp_bde64 *) rxbmp->virt;
2868 rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0);
2872 if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) {
2874 goto err_post_rxbufs_exit;
2877 /* Queue buffers for the receive exchange */
2878 num_bde = (uint32_t)rxbuffer->flag;
2879 dmp = &rxbuffer->dma;
2881 cmd = &cmdiocbq->iocb;
2884 INIT_LIST_HEAD(&head);
2885 list_add_tail(&head, &dmp->list);
2886 list_for_each_safe(curr, next, &head) {
2887 mp[i] = list_entry(curr, struct lpfc_dmabuf, list);
2890 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2891 mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba);
2892 cmd->un.quexri64cx.buff.bde.addrHigh =
2893 putPaddrHigh(mp[i]->phys);
2894 cmd->un.quexri64cx.buff.bde.addrLow =
2895 putPaddrLow(mp[i]->phys);
2896 cmd->un.quexri64cx.buff.bde.tus.f.bdeSize =
2897 ((struct lpfc_dmabufext *)mp[i])->size;
2898 cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag;
2899 cmd->ulpCommand = CMD_QUE_XRI64_CX;
2902 cmd->ulpBdeCount = 1;
2903 cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0;
2906 cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys);
2907 cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys);
2908 cmd->un.cont64[i].tus.f.bdeSize =
2909 ((struct lpfc_dmabufext *)mp[i])->size;
2910 cmd->ulpBdeCount = ++i;
2912 if ((--num_bde > 0) && (i < 2))
2915 cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX;
2919 cmd->ulpClass = CLASS3;
2920 cmd->ulpContext = rxxri;
2922 iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
2924 if (iocb_stat == IOCB_ERROR) {
2925 diag_cmd_data_free(phba,
2926 (struct lpfc_dmabufext *)mp[0]);
2928 diag_cmd_data_free(phba,
2929 (struct lpfc_dmabufext *)mp[1]);
2930 dmp = list_entry(next, struct lpfc_dmabuf, list);
2932 goto err_post_rxbufs_exit;
2935 lpfc_sli_ringpostbuf_put(phba, pring, mp[0]);
2937 lpfc_sli_ringpostbuf_put(phba, pring, mp[1]);
2941 /* The iocb was freed by lpfc_sli_issue_iocb */
2942 cmdiocbq = lpfc_sli_get_iocbq(phba);
2944 dmp = list_entry(next, struct lpfc_dmabuf, list);
2946 goto err_post_rxbufs_exit;
2949 cmd = &cmdiocbq->iocb;
2954 err_post_rxbufs_exit:
2958 lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys);
2963 lpfc_sli_release_iocbq(phba, cmdiocbq);
2968 * lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself
2969 * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job
2971 * This function receives a user data buffer to be transmitted and received on
2972 * the same port, the link must be up and in loopback mode prior
2974 * 1. A kernel buffer is allocated to copy the user data into.
2975 * 2. The port registers with "itself".
2976 * 3. The transmit and receive exchange ids are obtained.
2977 * 4. The receive exchange id is posted.
2978 * 5. A new els loopback event is created.
2979 * 6. The command and response iocbs are allocated.
2980 * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback.
2982 * This function is meant to be called n times while the port is in loopback
2983 * so it is the apps responsibility to issue a reset to take the port out
2987 lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
2989 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
2990 struct lpfc_hba *phba = vport->phba;
2991 struct diag_mode_test *diag_mode;
2992 struct lpfc_bsg_event *evt;
2993 struct event_data *evdat;
2994 struct lpfc_sli *psli = &phba->sli;
2997 size_t segment_len = 0, segment_offset = 0, current_offset = 0;
2999 struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL;
3000 IOCB_t *cmd, *rsp = NULL;
3001 struct lpfc_sli_ct_request *ctreq;
3002 struct lpfc_dmabuf *txbmp;
3003 struct ulp_bde64 *txbpl = NULL;
3004 struct lpfc_dmabufext *txbuffer = NULL;
3005 struct list_head head;
3006 struct lpfc_dmabuf *curr;
3007 uint16_t txxri = 0, rxxri;
3009 uint8_t *ptr = NULL, *rx_databuf = NULL;
3012 int iocb_stat = IOCB_SUCCESS;
3013 unsigned long flags;
3014 void *dataout = NULL;
3017 /* in case no data is returned return just the return code */
3018 job->reply->reply_payload_rcv_len = 0;
3020 if (job->request_len <
3021 sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) {
3022 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3023 "2739 Received DIAG TEST request below minimum "
3026 goto loopback_test_exit;
3029 if (job->request_payload.payload_len !=
3030 job->reply_payload.payload_len) {
3032 goto loopback_test_exit;
3034 diag_mode = (struct diag_mode_test *)
3035 job->request->rqst_data.h_vendor.vendor_cmd;
3037 if ((phba->link_state == LPFC_HBA_ERROR) ||
3038 (psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
3039 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
3041 goto loopback_test_exit;
3044 if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) {
3046 goto loopback_test_exit;
3049 size = job->request_payload.payload_len;
3050 full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */
3052 if ((size == 0) || (size > 80 * BUF_SZ_4K)) {
3054 goto loopback_test_exit;
3057 if (full_size >= BUF_SZ_4K) {
3059 * Allocate memory for ioctl data. If buffer is bigger than 64k,
3060 * then we allocate 64k and re-use that buffer over and over to
3061 * xfer the whole block. This is because Linux kernel has a
3062 * problem allocating more than 120k of kernel space memory. Saw
3063 * problem with GET_FCPTARGETMAPPING...
3065 if (size <= (64 * 1024))
3066 total_mem = full_size;
3068 total_mem = 64 * 1024;
3070 /* Allocate memory for ioctl data */
3071 total_mem = BUF_SZ_4K;
3073 dataout = kmalloc(total_mem, GFP_KERNEL);
3074 if (dataout == NULL) {
3076 goto loopback_test_exit;
3080 ptr += ELX_LOOPBACK_HEADER_SZ;
3081 sg_copy_to_buffer(job->request_payload.sg_list,
3082 job->request_payload.sg_cnt,
3084 rc = lpfcdiag_loop_self_reg(phba, &rpi);
3086 goto loopback_test_exit;
3088 if (phba->sli_rev < LPFC_SLI_REV4) {
3089 rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri);
3091 lpfcdiag_loop_self_unreg(phba, rpi);
3092 goto loopback_test_exit;
3095 rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size);
3097 lpfcdiag_loop_self_unreg(phba, rpi);
3098 goto loopback_test_exit;
3101 evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
3102 SLI_CT_ELX_LOOPBACK);
3104 lpfcdiag_loop_self_unreg(phba, rpi);
3106 goto loopback_test_exit;
3109 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3110 list_add(&evt->node, &phba->ct_ev_waiters);
3111 lpfc_bsg_event_ref(evt);
3112 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3114 cmdiocbq = lpfc_sli_get_iocbq(phba);
3115 if (phba->sli_rev < LPFC_SLI_REV4)
3116 rspiocbq = lpfc_sli_get_iocbq(phba);
3117 txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3120 txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys);
3122 INIT_LIST_HEAD(&txbmp->list);
3123 txbpl = (struct ulp_bde64 *) txbmp->virt;
3124 txbuffer = diag_cmd_data_alloc(phba,
3125 txbpl, full_size, 0);
3129 if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) {
3131 goto err_loopback_test_exit;
3133 if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) {
3135 goto err_loopback_test_exit;
3138 cmd = &cmdiocbq->iocb;
3139 if (phba->sli_rev < LPFC_SLI_REV4)
3140 rsp = &rspiocbq->iocb;
3142 INIT_LIST_HEAD(&head);
3143 list_add_tail(&head, &txbuffer->dma.list);
3144 list_for_each_entry(curr, &head, list) {
3145 segment_len = ((struct lpfc_dmabufext *)curr)->size;
3146 if (current_offset == 0) {
3148 memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
3149 ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
3150 ctreq->RevisionId.bits.InId = 0;
3151 ctreq->FsType = SLI_CT_ELX_LOOPBACK;
3152 ctreq->FsSubType = 0;
3153 ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA;
3154 ctreq->CommandResponse.bits.Size = size;
3155 segment_offset = ELX_LOOPBACK_HEADER_SZ;
3159 BUG_ON(segment_offset >= segment_len);
3160 memcpy(curr->virt + segment_offset,
3161 ptr + current_offset,
3162 segment_len - segment_offset);
3164 current_offset += segment_len - segment_offset;
3165 BUG_ON(current_offset > size);
3169 /* Build the XMIT_SEQUENCE iocb */
3170 num_bde = (uint32_t)txbuffer->flag;
3172 cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys);
3173 cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys);
3174 cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
3175 cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64));
3177 cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
3178 cmd->un.xseq64.w5.hcsw.Dfctl = 0;
3179 cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
3180 cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
3182 cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
3183 cmd->ulpBdeCount = 1;
3185 cmd->ulpClass = CLASS3;
3187 if (phba->sli_rev < LPFC_SLI_REV4) {
3188 cmd->ulpContext = txxri;
3190 cmd->un.xseq64.bdl.ulpIoTag32 = 0;
3191 cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi];
3192 cmdiocbq->context3 = txbmp;
3193 cmdiocbq->sli4_xritag = NO_XRI;
3194 cmd->unsli3.rcvsli3.ox_id = 0xffff;
3196 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
3197 cmdiocbq->vport = phba->pport;
3198 cmdiocbq->iocb_cmpl = NULL;
3199 iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
3200 rspiocbq, (phba->fc_ratov * 2) +
3203 if ((iocb_stat != IOCB_SUCCESS) ||
3204 ((phba->sli_rev < LPFC_SLI_REV4) &&
3205 (rsp->ulpStatus != IOSTAT_SUCCESS))) {
3206 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3207 "3126 Failed loopback test issue iocb: "
3208 "iocb_stat:x%x\n", iocb_stat);
3210 goto err_loopback_test_exit;
3214 time_left = wait_event_interruptible_timeout(
3215 evt->wq, !list_empty(&evt->events_to_see),
3216 msecs_to_jiffies(1000 *
3217 ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
3219 if (list_empty(&evt->events_to_see)) {
3220 rc = (time_left) ? -EINTR : -ETIMEDOUT;
3221 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3222 "3125 Not receiving unsolicited event, "
3225 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3226 list_move(evt->events_to_see.prev, &evt->events_to_get);
3227 evdat = list_entry(evt->events_to_get.prev,
3228 typeof(*evdat), node);
3229 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3230 rx_databuf = evdat->data;
3231 if (evdat->len != full_size) {
3232 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3233 "1603 Loopback test did not receive expected "
3234 "data length. actual length 0x%x expected "
3236 evdat->len, full_size);
3238 } else if (rx_databuf == NULL)
3242 /* skip over elx loopback header */
3243 rx_databuf += ELX_LOOPBACK_HEADER_SZ;
3244 job->reply->reply_payload_rcv_len =
3245 sg_copy_from_buffer(job->reply_payload.sg_list,
3246 job->reply_payload.sg_cnt,
3248 job->reply->reply_payload_rcv_len = size;
3252 err_loopback_test_exit:
3253 lpfcdiag_loop_self_unreg(phba, rpi);
3255 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3256 lpfc_bsg_event_unref(evt); /* release ref */
3257 lpfc_bsg_event_unref(evt); /* delete */
3258 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3260 if ((cmdiocbq != NULL) && (iocb_stat != IOCB_TIMEDOUT))
3261 lpfc_sli_release_iocbq(phba, cmdiocbq);
3263 if (rspiocbq != NULL)
3264 lpfc_sli_release_iocbq(phba, rspiocbq);
3266 if (txbmp != NULL) {
3267 if (txbpl != NULL) {
3268 if (txbuffer != NULL)
3269 diag_cmd_data_free(phba, txbuffer);
3270 lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys);
3277 /* make error code available to userspace */
3278 job->reply->result = rc;
3279 job->dd_data = NULL;
3280 /* complete the job back to userspace if no error */
3281 if (rc == IOCB_SUCCESS)
3287 * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command
3288 * @job: GET_DFC_REV fc_bsg_job
3291 lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job)
3293 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
3294 struct lpfc_hba *phba = vport->phba;
3295 struct get_mgmt_rev *event_req;
3296 struct get_mgmt_rev_reply *event_reply;
3299 if (job->request_len <
3300 sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) {
3301 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3302 "2740 Received GET_DFC_REV request below "
3308 event_req = (struct get_mgmt_rev *)
3309 job->request->rqst_data.h_vendor.vendor_cmd;
3311 event_reply = (struct get_mgmt_rev_reply *)
3312 job->reply->reply_data.vendor_reply.vendor_rsp;
3314 if (job->reply_len <
3315 sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) {
3316 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3317 "2741 Received GET_DFC_REV reply below "
3323 event_reply->info.a_Major = MANAGEMENT_MAJOR_REV;
3324 event_reply->info.a_Minor = MANAGEMENT_MINOR_REV;
3326 job->reply->result = rc;
3333 * lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler
3334 * @phba: Pointer to HBA context object.
3335 * @pmboxq: Pointer to mailbox command.
3337 * This is completion handler function for mailbox commands issued from
3338 * lpfc_bsg_issue_mbox function. This function is called by the
3339 * mailbox event handler function with no lock held. This function
3340 * will wake up thread waiting on the wait queue pointed by context1
3344 lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3346 struct bsg_job_data *dd_data;
3347 struct fc_bsg_job *job;
3349 unsigned long flags;
3350 uint8_t *pmb, *pmb_buf;
3352 dd_data = pmboxq->context1;
3355 * The outgoing buffer is readily referred from the dma buffer,
3356 * just need to get header part from mailboxq structure.
3358 pmb = (uint8_t *)&pmboxq->u.mb;
3359 pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
3360 memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
3362 /* Determine if job has been aborted */
3364 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3365 job = dd_data->set_job;
3367 /* Prevent timeout handling from trying to abort job */
3368 job->dd_data = NULL;
3370 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3372 /* Copy the mailbox data to the job if it is still active */
3375 size = job->reply_payload.payload_len;
3376 job->reply->reply_payload_rcv_len =
3377 sg_copy_from_buffer(job->reply_payload.sg_list,
3378 job->reply_payload.sg_cnt,
3382 dd_data->set_job = NULL;
3383 mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool);
3384 lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers);
3387 /* Complete the job if the job is still active */
3390 job->reply->result = 0;
3397 * lpfc_bsg_check_cmd_access - test for a supported mailbox command
3398 * @phba: Pointer to HBA context object.
3399 * @mb: Pointer to a mailbox object.
3400 * @vport: Pointer to a vport object.
3402 * Some commands require the port to be offline, some may not be called from
3405 static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba,
3406 MAILBOX_t *mb, struct lpfc_vport *vport)
3408 /* return negative error values for bsg job */
3409 switch (mb->mbxCommand) {
3413 case MBX_CONFIG_LINK:
3414 case MBX_CONFIG_RING:
3415 case MBX_RESET_RING:
3416 case MBX_UNREG_LOGIN:
3418 case MBX_DUMP_CONTEXT:
3422 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3423 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3424 "2743 Command 0x%x is illegal in on-line "
3430 case MBX_WRITE_VPARMS:
3433 case MBX_READ_CONFIG:
3434 case MBX_READ_RCONFIG:
3435 case MBX_READ_STATUS:
3438 case MBX_READ_LNK_STAT:
3439 case MBX_DUMP_MEMORY:
3441 case MBX_UPDATE_CFG:
3442 case MBX_KILL_BOARD:
3443 case MBX_READ_TOPOLOGY:
3445 case MBX_LOAD_EXP_ROM:
3447 case MBX_DEL_LD_ENTRY:
3450 case MBX_SLI4_CONFIG:
3451 case MBX_READ_EVENT_LOG:
3452 case MBX_READ_EVENT_LOG_STATUS:
3453 case MBX_WRITE_EVENT_LOG:
3454 case MBX_PORT_CAPABILITIES:
3455 case MBX_PORT_IOV_CONTROL:
3456 case MBX_RUN_BIU_DIAG64:
3458 case MBX_SET_VARIABLE:
3459 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3460 "1226 mbox: set_variable 0x%x, 0x%x\n",
3462 mb->un.varWords[1]);
3463 if ((mb->un.varWords[0] == SETVAR_MLOMNT)
3464 && (mb->un.varWords[1] == 1)) {
3465 phba->wait_4_mlo_maint_flg = 1;
3466 } else if (mb->un.varWords[0] == SETVAR_MLORST) {
3467 spin_lock_irq(&phba->hbalock);
3468 phba->link_flag &= ~LS_LOOPBACK_MODE;
3469 spin_unlock_irq(&phba->hbalock);
3470 phba->fc_topology = LPFC_TOPOLOGY_PT_PT;
3473 case MBX_READ_SPARM64:
3475 case MBX_REG_LOGIN64:
3476 case MBX_CONFIG_PORT:
3477 case MBX_RUN_BIU_DIAG:
3479 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
3480 "2742 Unknown Command 0x%x\n",
3489 * lpfc_bsg_mbox_ext_cleanup - clean up context of multi-buffer mbox session
3490 * @phba: Pointer to HBA context object.
3492 * This is routine clean up and reset BSG handling of multi-buffer mbox
3496 lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba)
3498 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE)
3501 /* free all memory, including dma buffers */
3502 lpfc_bsg_dma_page_list_free(phba,
3503 &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3504 lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf);
3505 /* multi-buffer write mailbox command pass-through complete */
3506 memset((char *)&phba->mbox_ext_buf_ctx, 0,
3507 sizeof(struct lpfc_mbox_ext_buf_ctx));
3508 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3514 * lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl
3515 * @phba: Pointer to HBA context object.
3516 * @pmboxq: Pointer to mailbox command.
3518 * This is routine handles BSG job for mailbox commands completions with
3519 * multiple external buffers.
3521 static struct fc_bsg_job *
3522 lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3524 struct bsg_job_data *dd_data;
3525 struct fc_bsg_job *job;
3526 uint8_t *pmb, *pmb_buf;
3527 unsigned long flags;
3530 struct lpfc_dmabuf *dmabuf;
3531 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3534 dd_data = pmboxq->context1;
3536 /* Determine if job has been aborted */
3537 spin_lock_irqsave(&phba->ct_ev_lock, flags);
3538 job = dd_data->set_job;
3540 /* Prevent timeout handling from trying to abort job */
3541 job->dd_data = NULL;
3543 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
3546 * The outgoing buffer is readily referred from the dma buffer,
3547 * just need to get header part from mailboxq structure.
3550 pmb = (uint8_t *)&pmboxq->u.mb;
3551 pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
3552 /* Copy the byte swapped response mailbox back to the user */
3553 memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
3554 /* if there is any non-embedded extended data copy that too */
3555 dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf;
3556 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
3557 if (!bsg_bf_get(lpfc_mbox_hdr_emb,
3558 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
3559 pmbx = (uint8_t *)dmabuf->virt;
3560 /* byte swap the extended data following the mailbox command */
3561 lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
3562 &pmbx[sizeof(MAILBOX_t)],
3563 sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len);
3566 /* Complete the job if the job is still active */
3569 size = job->reply_payload.payload_len;
3570 job->reply->reply_payload_rcv_len =
3571 sg_copy_from_buffer(job->reply_payload.sg_list,
3572 job->reply_payload.sg_cnt,
3575 /* result for successful */
3576 job->reply->result = 0;
3578 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3579 "2937 SLI_CONFIG ext-buffer maibox command "
3580 "(x%x/x%x) complete bsg job done, bsize:%d\n",
3581 phba->mbox_ext_buf_ctx.nembType,
3582 phba->mbox_ext_buf_ctx.mboxType, size);
3583 lpfc_idiag_mbxacc_dump_bsg_mbox(phba,
3584 phba->mbox_ext_buf_ctx.nembType,
3585 phba->mbox_ext_buf_ctx.mboxType,
3586 dma_ebuf, sta_pos_addr,
3587 phba->mbox_ext_buf_ctx.mbx_dmabuf, 0);
3589 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3590 "2938 SLI_CONFIG ext-buffer maibox "
3591 "command (x%x/x%x) failure, rc:x%x\n",
3592 phba->mbox_ext_buf_ctx.nembType,
3593 phba->mbox_ext_buf_ctx.mboxType, rc);
3598 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE;
3604 * lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox
3605 * @phba: Pointer to HBA context object.
3606 * @pmboxq: Pointer to mailbox command.
3608 * This is completion handler function for mailbox read commands with multiple
3612 lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3614 struct fc_bsg_job *job;
3616 job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
3618 /* handle the BSG job with mailbox command */
3620 pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
3622 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3623 "2939 SLI_CONFIG ext-buffer rd maibox command "
3624 "complete, ctxState:x%x, mbxStatus:x%x\n",
3625 phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
3627 if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1)
3628 lpfc_bsg_mbox_ext_session_reset(phba);
3630 /* free base driver mailbox structure memory */
3631 mempool_free(pmboxq, phba->mbox_mem_pool);
3633 /* if the job is still active, call job done */
3641 * lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox
3642 * @phba: Pointer to HBA context object.
3643 * @pmboxq: Pointer to mailbox command.
3645 * This is completion handler function for mailbox write commands with multiple
3649 lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
3651 struct fc_bsg_job *job;
3653 job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
3655 /* handle the BSG job with the mailbox command */
3657 pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
3659 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3660 "2940 SLI_CONFIG ext-buffer wr maibox command "
3661 "complete, ctxState:x%x, mbxStatus:x%x\n",
3662 phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
3664 /* free all memory, including dma buffers */
3665 mempool_free(pmboxq, phba->mbox_mem_pool);
3666 lpfc_bsg_mbox_ext_session_reset(phba);
3668 /* if the job is still active, call job done */
3676 lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp,
3677 uint32_t index, struct lpfc_dmabuf *mbx_dmabuf,
3678 struct lpfc_dmabuf *ext_dmabuf)
3680 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3682 /* pointer to the start of mailbox command */
3683 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt;
3685 if (nemb_tp == nemb_mse) {
3687 sli_cfg_mbx->un.sli_config_emb0_subsys.
3689 putPaddrHigh(mbx_dmabuf->phys +
3691 sli_cfg_mbx->un.sli_config_emb0_subsys.
3693 putPaddrLow(mbx_dmabuf->phys +
3695 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3696 "2943 SLI_CONFIG(mse)[%d], "
3697 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3699 sli_cfg_mbx->un.sli_config_emb0_subsys.
3701 sli_cfg_mbx->un.sli_config_emb0_subsys.
3703 sli_cfg_mbx->un.sli_config_emb0_subsys.
3706 sli_cfg_mbx->un.sli_config_emb0_subsys.
3708 putPaddrHigh(ext_dmabuf->phys);
3709 sli_cfg_mbx->un.sli_config_emb0_subsys.
3711 putPaddrLow(ext_dmabuf->phys);
3712 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3713 "2944 SLI_CONFIG(mse)[%d], "
3714 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3716 sli_cfg_mbx->un.sli_config_emb0_subsys.
3718 sli_cfg_mbx->un.sli_config_emb0_subsys.
3720 sli_cfg_mbx->un.sli_config_emb0_subsys.
3725 sli_cfg_mbx->un.sli_config_emb1_subsys.
3727 putPaddrHigh(mbx_dmabuf->phys +
3729 sli_cfg_mbx->un.sli_config_emb1_subsys.
3731 putPaddrLow(mbx_dmabuf->phys +
3733 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3734 "3007 SLI_CONFIG(hbd)[%d], "
3735 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3737 bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
3739 sli_config_emb1_subsys.hbd[index]),
3740 sli_cfg_mbx->un.sli_config_emb1_subsys.
3742 sli_cfg_mbx->un.sli_config_emb1_subsys.
3746 sli_cfg_mbx->un.sli_config_emb1_subsys.
3748 putPaddrHigh(ext_dmabuf->phys);
3749 sli_cfg_mbx->un.sli_config_emb1_subsys.
3751 putPaddrLow(ext_dmabuf->phys);
3752 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3753 "3008 SLI_CONFIG(hbd)[%d], "
3754 "bufLen:%d, addrHi:x%x, addrLo:x%x\n",
3756 bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
3758 sli_config_emb1_subsys.hbd[index]),
3759 sli_cfg_mbx->un.sli_config_emb1_subsys.
3761 sli_cfg_mbx->un.sli_config_emb1_subsys.
3769 * lpfc_bsg_sli_cfg_mse_read_cmd_ext - sli_config non-embedded mailbox cmd read
3770 * @phba: Pointer to HBA context object.
3771 * @mb: Pointer to a BSG mailbox object.
3772 * @nemb_tp: Enumerate of non-embedded mailbox command type.
3773 * @dmabuff: Pointer to a DMA buffer descriptor.
3775 * This routine performs SLI_CONFIG (0x9B) read mailbox command operation with
3776 * non-embedded external bufffers.
3779 lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
3780 enum nemb_type nemb_tp,
3781 struct lpfc_dmabuf *dmabuf)
3783 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3784 struct dfc_mbox_req *mbox_req;
3785 struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf;
3786 uint32_t ext_buf_cnt, ext_buf_index;
3787 struct lpfc_dmabuf *ext_dmabuf = NULL;
3788 struct bsg_job_data *dd_data = NULL;
3789 LPFC_MBOXQ_t *pmboxq = NULL;
3795 (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd;
3797 /* pointer to the start of mailbox command */
3798 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
3800 if (nemb_tp == nemb_mse) {
3801 ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
3802 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
3803 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
3804 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3805 "2945 Handled SLI_CONFIG(mse) rd, "
3806 "ext_buf_cnt(%d) out of range(%d)\n",
3808 LPFC_MBX_SLI_CONFIG_MAX_MSE);
3812 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3813 "2941 Handled SLI_CONFIG(mse) rd, "
3814 "ext_buf_cnt:%d\n", ext_buf_cnt);
3816 /* sanity check on interface type for support */
3817 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3818 LPFC_SLI_INTF_IF_TYPE_2) {
3822 /* nemb_tp == nemb_hbd */
3823 ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
3824 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
3825 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3826 "2946 Handled SLI_CONFIG(hbd) rd, "
3827 "ext_buf_cnt(%d) out of range(%d)\n",
3829 LPFC_MBX_SLI_CONFIG_MAX_HBD);
3833 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3834 "2942 Handled SLI_CONFIG(hbd) rd, "
3835 "ext_buf_cnt:%d\n", ext_buf_cnt);
3838 /* before dma descriptor setup */
3839 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
3840 sta_pre_addr, dmabuf, ext_buf_cnt);
3842 /* reject non-embedded mailbox command with none external buffer */
3843 if (ext_buf_cnt == 0) {
3846 } else if (ext_buf_cnt > 1) {
3847 /* additional external read buffers */
3848 for (i = 1; i < ext_buf_cnt; i++) {
3849 ext_dmabuf = lpfc_bsg_dma_page_alloc(phba);
3854 list_add_tail(&ext_dmabuf->list,
3855 &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3859 /* bsg tracking structure */
3860 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
3866 /* mailbox command structure for base driver */
3867 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3872 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
3874 /* for the first external buffer */
3875 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
3877 /* for the rest of external buffer descriptors if any */
3878 if (ext_buf_cnt > 1) {
3880 list_for_each_entry_safe(curr_dmabuf, next_dmabuf,
3881 &phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) {
3882 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp,
3883 ext_buf_index, dmabuf,
3889 /* after dma descriptor setup */
3890 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
3891 sta_pos_addr, dmabuf, ext_buf_cnt);
3893 /* construct base driver mbox command */
3894 pmb = &pmboxq->u.mb;
3895 pmbx = (uint8_t *)dmabuf->virt;
3896 memcpy(pmb, pmbx, sizeof(*pmb));
3897 pmb->mbxOwner = OWN_HOST;
3898 pmboxq->vport = phba->pport;
3900 /* multi-buffer handling context */
3901 phba->mbox_ext_buf_ctx.nembType = nemb_tp;
3902 phba->mbox_ext_buf_ctx.mboxType = mbox_rd;
3903 phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
3904 phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
3905 phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
3906 phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
3908 /* callback for multi-buffer read mailbox command */
3909 pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl;
3911 /* context fields to callback function */
3912 pmboxq->context1 = dd_data;
3913 dd_data->type = TYPE_MBOX;
3914 dd_data->set_job = job;
3915 dd_data->context_un.mbox.pmboxq = pmboxq;
3916 dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
3917 job->dd_data = dd_data;
3920 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
3923 * Non-embedded mailbox subcommand data gets byte swapped here because
3924 * the lower level driver code only does the first 64 mailbox words.
3926 if ((!bsg_bf_get(lpfc_mbox_hdr_emb,
3927 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) &&
3928 (nemb_tp == nemb_mse))
3929 lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
3930 &pmbx[sizeof(MAILBOX_t)],
3931 sli_cfg_mbx->un.sli_config_emb0_subsys.
3934 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
3935 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
3936 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3937 "2947 Issued SLI_CONFIG ext-buffer "
3938 "maibox command, rc:x%x\n", rc);
3939 return SLI_CONFIG_HANDLED;
3941 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3942 "2948 Failed to issue SLI_CONFIG ext-buffer "
3943 "maibox command, rc:x%x\n", rc);
3948 mempool_free(pmboxq, phba->mbox_mem_pool);
3949 lpfc_bsg_dma_page_list_free(phba,
3950 &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
3952 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
3957 * lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write
3958 * @phba: Pointer to HBA context object.
3959 * @mb: Pointer to a BSG mailbox object.
3960 * @dmabuff: Pointer to a DMA buffer descriptor.
3962 * This routine performs SLI_CONFIG (0x9B) write mailbox command operation with
3963 * non-embedded external bufffers.
3966 lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
3967 enum nemb_type nemb_tp,
3968 struct lpfc_dmabuf *dmabuf)
3970 struct dfc_mbox_req *mbox_req;
3971 struct lpfc_sli_config_mbox *sli_cfg_mbx;
3972 uint32_t ext_buf_cnt;
3973 struct bsg_job_data *dd_data = NULL;
3974 LPFC_MBOXQ_t *pmboxq = NULL;
3977 int rc = SLI_CONFIG_NOT_HANDLED, i;
3980 (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd;
3982 /* pointer to the start of mailbox command */
3983 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
3985 if (nemb_tp == nemb_mse) {
3986 ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
3987 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
3988 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
3989 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
3990 "2953 Failed SLI_CONFIG(mse) wr, "
3991 "ext_buf_cnt(%d) out of range(%d)\n",
3993 LPFC_MBX_SLI_CONFIG_MAX_MSE);
3996 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
3997 "2949 Handled SLI_CONFIG(mse) wr, "
3998 "ext_buf_cnt:%d\n", ext_buf_cnt);
4000 /* sanity check on interface type for support */
4001 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4002 LPFC_SLI_INTF_IF_TYPE_2)
4004 /* nemb_tp == nemb_hbd */
4005 ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
4006 if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
4007 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4008 "2954 Failed SLI_CONFIG(hbd) wr, "
4009 "ext_buf_cnt(%d) out of range(%d)\n",
4011 LPFC_MBX_SLI_CONFIG_MAX_HBD);
4014 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4015 "2950 Handled SLI_CONFIG(hbd) wr, "
4016 "ext_buf_cnt:%d\n", ext_buf_cnt);
4019 /* before dma buffer descriptor setup */
4020 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
4021 sta_pre_addr, dmabuf, ext_buf_cnt);
4023 if (ext_buf_cnt == 0)
4026 /* for the first external buffer */
4027 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
4029 /* after dma descriptor setup */
4030 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
4031 sta_pos_addr, dmabuf, ext_buf_cnt);
4033 /* log for looking forward */
4034 for (i = 1; i < ext_buf_cnt; i++) {
4035 if (nemb_tp == nemb_mse)
4036 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4037 "2951 SLI_CONFIG(mse), buf[%d]-length:%d\n",
4038 i, sli_cfg_mbx->un.sli_config_emb0_subsys.
4041 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4042 "2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n",
4043 i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
4044 &sli_cfg_mbx->un.sli_config_emb1_subsys.
4048 /* multi-buffer handling context */
4049 phba->mbox_ext_buf_ctx.nembType = nemb_tp;
4050 phba->mbox_ext_buf_ctx.mboxType = mbox_wr;
4051 phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
4052 phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
4053 phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
4054 phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
4056 if (ext_buf_cnt == 1) {
4057 /* bsg tracking structure */
4058 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
4064 /* mailbox command structure for base driver */
4065 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4070 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4071 pmb = &pmboxq->u.mb;
4072 mbx = (uint8_t *)dmabuf->virt;
4073 memcpy(pmb, mbx, sizeof(*pmb));
4074 pmb->mbxOwner = OWN_HOST;
4075 pmboxq->vport = phba->pport;
4077 /* callback for multi-buffer read mailbox command */
4078 pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
4080 /* context fields to callback function */
4081 pmboxq->context1 = dd_data;
4082 dd_data->type = TYPE_MBOX;
4083 dd_data->set_job = job;
4084 dd_data->context_un.mbox.pmboxq = pmboxq;
4085 dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx;
4086 job->dd_data = dd_data;
4090 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
4091 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4092 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
4093 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4094 "2955 Issued SLI_CONFIG ext-buffer "
4095 "maibox command, rc:x%x\n", rc);
4096 return SLI_CONFIG_HANDLED;
4098 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4099 "2956 Failed to issue SLI_CONFIG ext-buffer "
4100 "maibox command, rc:x%x\n", rc);
4105 /* wait for additoinal external buffers */
4107 job->reply->result = 0;
4109 return SLI_CONFIG_HANDLED;
4113 mempool_free(pmboxq, phba->mbox_mem_pool);
4120 * lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer
4121 * @phba: Pointer to HBA context object.
4122 * @mb: Pointer to a BSG mailbox object.
4123 * @dmabuff: Pointer to a DMA buffer descriptor.
4125 * This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded
4126 * external bufffers, including both 0x9B with non-embedded MSEs and 0x9B
4127 * with embedded sussystem 0x1 and opcodes with external HBDs.
4130 lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job,
4131 struct lpfc_dmabuf *dmabuf)
4133 struct lpfc_sli_config_mbox *sli_cfg_mbx;
4136 int rc = SLI_CONFIG_NOT_HANDLED;
4138 /* state change on new multi-buffer pass-through mailbox command */
4139 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST;
4141 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
4143 if (!bsg_bf_get(lpfc_mbox_hdr_emb,
4144 &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
4145 subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys,
4146 &sli_cfg_mbx->un.sli_config_emb0_subsys);
4147 opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode,
4148 &sli_cfg_mbx->un.sli_config_emb0_subsys);
4149 if (subsys == SLI_CONFIG_SUBSYS_FCOE) {
4151 case FCOE_OPCODE_READ_FCF:
4152 case FCOE_OPCODE_GET_DPORT_RESULTS:
4153 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4154 "2957 Handled SLI_CONFIG "
4155 "subsys_fcoe, opcode:x%x\n",
4157 rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
4160 case FCOE_OPCODE_ADD_FCF:
4161 case FCOE_OPCODE_SET_DPORT_MODE:
4162 case LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE:
4163 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4164 "2958 Handled SLI_CONFIG "
4165 "subsys_fcoe, opcode:x%x\n",
4167 rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
4171 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4172 "2959 Reject SLI_CONFIG "
4173 "subsys_fcoe, opcode:x%x\n",
4178 } else if (subsys == SLI_CONFIG_SUBSYS_COMN) {
4180 case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES:
4181 case COMN_OPCODE_GET_CNTL_ATTRIBUTES:
4182 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4183 "3106 Handled SLI_CONFIG "
4184 "subsys_comn, opcode:x%x\n",
4186 rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
4190 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4191 "3107 Reject SLI_CONFIG "
4192 "subsys_comn, opcode:x%x\n",
4198 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4199 "2977 Reject SLI_CONFIG "
4200 "subsys:x%d, opcode:x%x\n",
4205 subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys,
4206 &sli_cfg_mbx->un.sli_config_emb1_subsys);
4207 opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode,
4208 &sli_cfg_mbx->un.sli_config_emb1_subsys);
4209 if (subsys == SLI_CONFIG_SUBSYS_COMN) {
4211 case COMN_OPCODE_READ_OBJECT:
4212 case COMN_OPCODE_READ_OBJECT_LIST:
4213 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4214 "2960 Handled SLI_CONFIG "
4215 "subsys_comn, opcode:x%x\n",
4217 rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
4220 case COMN_OPCODE_WRITE_OBJECT:
4221 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4222 "2961 Handled SLI_CONFIG "
4223 "subsys_comn, opcode:x%x\n",
4225 rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
4229 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4230 "2962 Not handled SLI_CONFIG "
4231 "subsys_comn, opcode:x%x\n",
4233 rc = SLI_CONFIG_NOT_HANDLED;
4237 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4238 "2978 Not handled SLI_CONFIG "
4239 "subsys:x%d, opcode:x%x\n",
4241 rc = SLI_CONFIG_NOT_HANDLED;
4245 /* state reset on not handled new multi-buffer mailbox command */
4246 if (rc != SLI_CONFIG_HANDLED)
4247 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
4253 * lpfc_bsg_mbox_ext_abort_req - request to abort mbox command with ext buffers
4254 * @phba: Pointer to HBA context object.
4256 * This routine is for requesting to abort a pass-through mailbox command with
4257 * multiple external buffers due to error condition.
4260 lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba)
4262 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
4263 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
4265 lpfc_bsg_mbox_ext_session_reset(phba);
4270 * lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer
4271 * @phba: Pointer to HBA context object.
4272 * @dmabuf: Pointer to a DMA buffer descriptor.
4274 * This routine extracts the next mailbox read external buffer back to
4275 * user space through BSG.
4278 lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct fc_bsg_job *job)
4280 struct lpfc_sli_config_mbox *sli_cfg_mbx;
4281 struct lpfc_dmabuf *dmabuf;
4286 index = phba->mbox_ext_buf_ctx.seqNum;
4287 phba->mbox_ext_buf_ctx.seqNum++;
4289 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)
4290 phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
4292 if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
4293 size = bsg_bf_get(lpfc_mbox_sli_config_mse_len,
4294 &sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]);
4295 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4296 "2963 SLI_CONFIG (mse) ext-buffer rd get "
4297 "buffer[%d], size:%d\n", index, size);
4299 size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
4300 &sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]);
4301 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4302 "2964 SLI_CONFIG (hbd) ext-buffer rd get "
4303 "buffer[%d], size:%d\n", index, size);
4305 if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list))
4307 dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list,
4308 struct lpfc_dmabuf, list);
4309 list_del_init(&dmabuf->list);
4311 /* after dma buffer descriptor setup */
4312 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
4313 mbox_rd, dma_ebuf, sta_pos_addr,
4316 pbuf = (uint8_t *)dmabuf->virt;
4317 job->reply->reply_payload_rcv_len =
4318 sg_copy_from_buffer(job->reply_payload.sg_list,
4319 job->reply_payload.sg_cnt,
4322 lpfc_bsg_dma_page_free(phba, dmabuf);
4324 if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
4325 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4326 "2965 SLI_CONFIG (hbd) ext-buffer rd mbox "
4327 "command session done\n");
4328 lpfc_bsg_mbox_ext_session_reset(phba);
4331 job->reply->result = 0;
4334 return SLI_CONFIG_HANDLED;
4338 * lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer
4339 * @phba: Pointer to HBA context object.
4340 * @dmabuf: Pointer to a DMA buffer descriptor.
4342 * This routine sets up the next mailbox read external buffer obtained
4343 * from user space through BSG.
4346 lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct fc_bsg_job *job,
4347 struct lpfc_dmabuf *dmabuf)
4349 struct lpfc_sli_config_mbox *sli_cfg_mbx;
4350 struct bsg_job_data *dd_data = NULL;
4351 LPFC_MBOXQ_t *pmboxq = NULL;
4353 enum nemb_type nemb_tp;
4359 index = phba->mbox_ext_buf_ctx.seqNum;
4360 phba->mbox_ext_buf_ctx.seqNum++;
4361 nemb_tp = phba->mbox_ext_buf_ctx.nembType;
4363 sli_cfg_mbx = (struct lpfc_sli_config_mbox *)
4364 phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
4366 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
4372 pbuf = (uint8_t *)dmabuf->virt;
4373 size = job->request_payload.payload_len;
4374 sg_copy_to_buffer(job->request_payload.sg_list,
4375 job->request_payload.sg_cnt,
4378 if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
4379 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4380 "2966 SLI_CONFIG (mse) ext-buffer wr set "
4381 "buffer[%d], size:%d\n",
4382 phba->mbox_ext_buf_ctx.seqNum, size);
4385 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4386 "2967 SLI_CONFIG (hbd) ext-buffer wr set "
4387 "buffer[%d], size:%d\n",
4388 phba->mbox_ext_buf_ctx.seqNum, size);
4392 /* set up external buffer descriptor and add to external buffer list */
4393 lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index,
4394 phba->mbox_ext_buf_ctx.mbx_dmabuf,
4396 list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4398 /* after write dma buffer */
4399 lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
4400 mbox_wr, dma_ebuf, sta_pos_addr,
4403 if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
4404 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4405 "2968 SLI_CONFIG ext-buffer wr all %d "
4406 "ebuffers received\n",
4407 phba->mbox_ext_buf_ctx.numBuf);
4408 /* mailbox command structure for base driver */
4409 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4414 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4415 pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
4416 pmb = &pmboxq->u.mb;
4417 memcpy(pmb, pbuf, sizeof(*pmb));
4418 pmb->mbxOwner = OWN_HOST;
4419 pmboxq->vport = phba->pport;
4421 /* callback for multi-buffer write mailbox command */
4422 pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
4424 /* context fields to callback function */
4425 pmboxq->context1 = dd_data;
4426 dd_data->type = TYPE_MBOX;
4427 dd_data->set_job = job;
4428 dd_data->context_un.mbox.pmboxq = pmboxq;
4429 dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf;
4430 job->dd_data = dd_data;
4433 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
4435 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4436 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
4437 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4438 "2969 Issued SLI_CONFIG ext-buffer "
4439 "maibox command, rc:x%x\n", rc);
4440 return SLI_CONFIG_HANDLED;
4442 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4443 "2970 Failed to issue SLI_CONFIG ext-buffer "
4444 "maibox command, rc:x%x\n", rc);
4449 /* wait for additoinal external buffers */
4450 job->reply->result = 0;
4452 return SLI_CONFIG_HANDLED;
4455 lpfc_bsg_dma_page_free(phba, dmabuf);
4462 * lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd
4463 * @phba: Pointer to HBA context object.
4464 * @mb: Pointer to a BSG mailbox object.
4465 * @dmabuff: Pointer to a DMA buffer descriptor.
4467 * This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox
4468 * command with multiple non-embedded external buffers.
4471 lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct fc_bsg_job *job,
4472 struct lpfc_dmabuf *dmabuf)
4476 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4477 "2971 SLI_CONFIG buffer (type:x%x)\n",
4478 phba->mbox_ext_buf_ctx.mboxType);
4480 if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) {
4481 if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) {
4482 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4483 "2972 SLI_CONFIG rd buffer state "
4485 phba->mbox_ext_buf_ctx.state);
4486 lpfc_bsg_mbox_ext_abort(phba);
4489 rc = lpfc_bsg_read_ebuf_get(phba, job);
4490 if (rc == SLI_CONFIG_HANDLED)
4491 lpfc_bsg_dma_page_free(phba, dmabuf);
4492 } else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */
4493 if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) {
4494 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4495 "2973 SLI_CONFIG wr buffer state "
4497 phba->mbox_ext_buf_ctx.state);
4498 lpfc_bsg_mbox_ext_abort(phba);
4501 rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf);
4507 * lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer
4508 * @phba: Pointer to HBA context object.
4509 * @mb: Pointer to a BSG mailbox object.
4510 * @dmabuff: Pointer to a DMA buffer descriptor.
4512 * This routine checkes and handles non-embedded multi-buffer SLI_CONFIG
4513 * (0x9B) mailbox commands and external buffers.
4516 lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
4517 struct lpfc_dmabuf *dmabuf)
4519 struct dfc_mbox_req *mbox_req;
4520 int rc = SLI_CONFIG_NOT_HANDLED;
4523 (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd;
4525 /* mbox command with/without single external buffer */
4526 if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0)
4529 /* mbox command and first external buffer */
4530 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) {
4531 if (mbox_req->extSeqNum == 1) {
4532 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4533 "2974 SLI_CONFIG mailbox: tag:%d, "
4534 "seq:%d\n", mbox_req->extMboxTag,
4535 mbox_req->extSeqNum);
4536 rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf);
4539 goto sli_cfg_ext_error;
4543 * handle additional external buffers
4546 /* check broken pipe conditions */
4547 if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag)
4548 goto sli_cfg_ext_error;
4549 if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf)
4550 goto sli_cfg_ext_error;
4551 if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1)
4552 goto sli_cfg_ext_error;
4554 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4555 "2975 SLI_CONFIG mailbox external buffer: "
4556 "extSta:x%x, tag:%d, seq:%d\n",
4557 phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag,
4558 mbox_req->extSeqNum);
4559 rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf);
4563 /* all other cases, broken pipe */
4564 lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
4565 "2976 SLI_CONFIG mailbox broken pipe: "
4566 "ctxSta:x%x, ctxNumBuf:%d "
4567 "ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n",
4568 phba->mbox_ext_buf_ctx.state,
4569 phba->mbox_ext_buf_ctx.numBuf,
4570 phba->mbox_ext_buf_ctx.mbxTag,
4571 phba->mbox_ext_buf_ctx.seqNum,
4572 mbox_req->extMboxTag, mbox_req->extSeqNum);
4574 lpfc_bsg_mbox_ext_session_reset(phba);
4580 * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app
4581 * @phba: Pointer to HBA context object.
4582 * @mb: Pointer to a mailbox object.
4583 * @vport: Pointer to a vport object.
4585 * Allocate a tracking object, mailbox command memory, get a mailbox
4586 * from the mailbox pool, copy the caller mailbox command.
4588 * If offline and the sli is active we need to poll for the command (port is
4589 * being reset) and com-plete the job, otherwise issue the mailbox command and
4590 * let our completion handler finish the command.
4593 lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job,
4594 struct lpfc_vport *vport)
4596 LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */
4597 MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */
4598 /* a 4k buffer to hold the mb and extended data from/to the bsg */
4599 uint8_t *pmbx = NULL;
4600 struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */
4601 struct lpfc_dmabuf *dmabuf = NULL;
4602 struct dfc_mbox_req *mbox_req;
4603 struct READ_EVENT_LOG_VAR *rdEventLog;
4604 uint32_t transmit_length, receive_length, mode;
4605 struct lpfc_mbx_sli4_config *sli4_config;
4606 struct lpfc_mbx_nembed_cmd *nembed_sge;
4607 struct mbox_header *header;
4608 struct ulp_bde64 *bde;
4609 uint8_t *ext = NULL;
4614 /* in case no data is transferred */
4615 job->reply->reply_payload_rcv_len = 0;
4617 /* sanity check to protect driver */
4618 if (job->reply_payload.payload_len > BSG_MBOX_SIZE ||
4619 job->request_payload.payload_len > BSG_MBOX_SIZE) {
4625 * Don't allow mailbox commands to be sent when blocked or when in
4626 * the middle of discovery
4628 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
4634 (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd;
4636 /* check if requested extended data lengths are valid */
4637 if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) ||
4638 (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) {
4643 dmabuf = lpfc_bsg_dma_page_alloc(phba);
4644 if (!dmabuf || !dmabuf->virt) {
4649 /* Get the mailbox command or external buffer from BSG */
4650 pmbx = (uint8_t *)dmabuf->virt;
4651 size = job->request_payload.payload_len;
4652 sg_copy_to_buffer(job->request_payload.sg_list,
4653 job->request_payload.sg_cnt, pmbx, size);
4655 /* Handle possible SLI_CONFIG with non-embedded payloads */
4656 if (phba->sli_rev == LPFC_SLI_REV4) {
4657 rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf);
4658 if (rc == SLI_CONFIG_HANDLED)
4662 /* SLI_CONFIG_NOT_HANDLED for other mailbox commands */
4665 rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport);
4667 goto job_done; /* must be negative */
4669 /* allocate our bsg tracking structure */
4670 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
4672 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
4673 "2727 Failed allocation of dd_data\n");
4678 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4683 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4685 pmb = &pmboxq->u.mb;
4686 memcpy(pmb, pmbx, sizeof(*pmb));
4687 pmb->mbxOwner = OWN_HOST;
4688 pmboxq->vport = vport;
4690 /* If HBA encountered an error attention, allow only DUMP
4691 * or RESTART mailbox commands until the HBA is restarted.
4693 if (phba->pport->stopped &&
4694 pmb->mbxCommand != MBX_DUMP_MEMORY &&
4695 pmb->mbxCommand != MBX_RESTART &&
4696 pmb->mbxCommand != MBX_WRITE_VPARMS &&
4697 pmb->mbxCommand != MBX_WRITE_WWN)
4698 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
4699 "2797 mbox: Issued mailbox cmd "
4700 "0x%x while in stopped state.\n",
4703 /* extended mailbox commands will need an extended buffer */
4704 if (mbox_req->inExtWLen || mbox_req->outExtWLen) {
4706 ext = from + sizeof(MAILBOX_t);
4707 pmboxq->context2 = ext;
4708 pmboxq->in_ext_byte_len =
4709 mbox_req->inExtWLen * sizeof(uint32_t);
4710 pmboxq->out_ext_byte_len =
4711 mbox_req->outExtWLen * sizeof(uint32_t);
4712 pmboxq->mbox_offset_word = mbox_req->mbOffset;
4715 /* biu diag will need a kernel buffer to transfer the data
4716 * allocate our own buffer and setup the mailbox command to
4719 if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) {
4720 transmit_length = pmb->un.varWords[1];
4721 receive_length = pmb->un.varWords[4];
4722 /* transmit length cannot be greater than receive length or
4723 * mailbox extension size
4725 if ((transmit_length > receive_length) ||
4726 (transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
4730 pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh =
4731 putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t));
4732 pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow =
4733 putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t));
4735 pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh =
4736 putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)
4737 + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
4738 pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow =
4739 putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)
4740 + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
4741 } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) {
4742 rdEventLog = &pmb->un.varRdEventLog;
4743 receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize;
4744 mode = bf_get(lpfc_event_log, rdEventLog);
4746 /* receive length cannot be greater than mailbox
4749 if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
4754 /* mode zero uses a bde like biu diags command */
4756 pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
4757 + sizeof(MAILBOX_t));
4758 pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
4759 + sizeof(MAILBOX_t));
4761 } else if (phba->sli_rev == LPFC_SLI_REV4) {
4762 /* Let type 4 (well known data) through because the data is
4763 * returned in varwords[4-8]
4764 * otherwise check the recieve length and fetch the buffer addr
4766 if ((pmb->mbxCommand == MBX_DUMP_MEMORY) &&
4767 (pmb->un.varDmp.type != DMP_WELL_KNOWN)) {
4768 /* rebuild the command for sli4 using our own buffers
4769 * like we do for biu diags
4771 receive_length = pmb->un.varWords[2];
4772 /* receive length cannot be greater than mailbox
4775 if (receive_length == 0) {
4779 pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
4780 + sizeof(MAILBOX_t));
4781 pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
4782 + sizeof(MAILBOX_t));
4783 } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) &&
4784 pmb->un.varUpdateCfg.co) {
4785 bde = (struct ulp_bde64 *)&pmb->un.varWords[4];
4787 /* bde size cannot be greater than mailbox ext size */
4788 if (bde->tus.f.bdeSize >
4789 BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
4793 bde->addrHigh = putPaddrHigh(dmabuf->phys
4794 + sizeof(MAILBOX_t));
4795 bde->addrLow = putPaddrLow(dmabuf->phys
4796 + sizeof(MAILBOX_t));
4797 } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) {
4798 /* Handling non-embedded SLI_CONFIG mailbox command */
4799 sli4_config = &pmboxq->u.mqe.un.sli4_config;
4800 if (!bf_get(lpfc_mbox_hdr_emb,
4801 &sli4_config->header.cfg_mhdr)) {
4802 /* rebuild the command for sli4 using our
4803 * own buffers like we do for biu diags
4805 header = (struct mbox_header *)
4806 &pmb->un.varWords[0];
4807 nembed_sge = (struct lpfc_mbx_nembed_cmd *)
4808 &pmb->un.varWords[0];
4809 receive_length = nembed_sge->sge[0].length;
4811 /* receive length cannot be greater than
4812 * mailbox extension size
4814 if ((receive_length == 0) ||
4816 BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
4821 nembed_sge->sge[0].pa_hi =
4822 putPaddrHigh(dmabuf->phys
4823 + sizeof(MAILBOX_t));
4824 nembed_sge->sge[0].pa_lo =
4825 putPaddrLow(dmabuf->phys
4826 + sizeof(MAILBOX_t));
4831 dd_data->context_un.mbox.dmabuffers = dmabuf;
4833 /* setup wake call as IOCB callback */
4834 pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl;
4836 /* setup context field to pass wait_queue pointer to wake function */
4837 pmboxq->context1 = dd_data;
4838 dd_data->type = TYPE_MBOX;
4839 dd_data->set_job = job;
4840 dd_data->context_un.mbox.pmboxq = pmboxq;
4841 dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
4842 dd_data->context_un.mbox.ext = ext;
4843 dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset;
4844 dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen;
4845 dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen;
4846 job->dd_data = dd_data;
4848 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4849 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
4850 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4851 if (rc != MBX_SUCCESS) {
4852 rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
4856 /* job finished, copy the data */
4857 memcpy(pmbx, pmb, sizeof(*pmb));
4858 job->reply->reply_payload_rcv_len =
4859 sg_copy_from_buffer(job->reply_payload.sg_list,
4860 job->reply_payload.sg_cnt,
4862 /* not waiting mbox already done */
4867 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
4868 if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY))
4869 return 1; /* job started */
4872 /* common exit for error or job completed inline */
4874 mempool_free(pmboxq, phba->mbox_mem_pool);
4875 lpfc_bsg_dma_page_free(phba, dmabuf);
4883 * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command
4884 * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX.
4887 lpfc_bsg_mbox_cmd(struct fc_bsg_job *job)
4889 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
4890 struct lpfc_hba *phba = vport->phba;
4891 struct dfc_mbox_req *mbox_req;
4894 /* mix-and-match backward compatibility */
4895 job->reply->reply_payload_rcv_len = 0;
4896 if (job->request_len <
4897 sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) {
4898 lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
4899 "2737 Mix-and-match backward compatibility "
4900 "between MBOX_REQ old size:%d and "
4901 "new request size:%d\n",
4902 (int)(job->request_len -
4903 sizeof(struct fc_bsg_request)),
4904 (int)sizeof(struct dfc_mbox_req));
4905 mbox_req = (struct dfc_mbox_req *)
4906 job->request->rqst_data.h_vendor.vendor_cmd;
4907 mbox_req->extMboxTag = 0;
4908 mbox_req->extSeqNum = 0;
4911 rc = lpfc_bsg_issue_mbox(phba, job, vport);
4915 job->reply->result = 0;
4916 job->dd_data = NULL;
4919 /* job submitted, will complete later*/
4920 rc = 0; /* return zero, no error */
4922 /* some error occurred */
4923 job->reply->result = rc;
4924 job->dd_data = NULL;
4931 * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler
4932 * @phba: Pointer to HBA context object.
4933 * @cmdiocbq: Pointer to command iocb.
4934 * @rspiocbq: Pointer to response iocb.
4936 * This function is the completion handler for iocbs issued using
4937 * lpfc_menlo_cmd function. This function is called by the
4938 * ring event handler function without any lock held. This function
4939 * can be called from both worker thread context and interrupt
4940 * context. This function also can be called from another thread which
4941 * cleans up the SLI layer objects.
4942 * This function copies the contents of the response iocb to the
4943 * response iocb memory object provided by the caller of
4944 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
4945 * sleeps for the iocb completion.
4948 lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba,
4949 struct lpfc_iocbq *cmdiocbq,
4950 struct lpfc_iocbq *rspiocbq)
4952 struct bsg_job_data *dd_data;
4953 struct fc_bsg_job *job;
4955 struct lpfc_dmabuf *bmp, *cmp, *rmp;
4956 struct lpfc_bsg_menlo *menlo;
4957 unsigned long flags;
4958 struct menlo_response *menlo_resp;
4959 unsigned int rsp_size;
4962 dd_data = cmdiocbq->context1;
4963 cmp = cmdiocbq->context2;
4964 bmp = cmdiocbq->context3;
4965 menlo = &dd_data->context_un.menlo;
4967 rsp = &rspiocbq->iocb;
4969 /* Determine if job has been aborted */
4970 spin_lock_irqsave(&phba->ct_ev_lock, flags);
4971 job = dd_data->set_job;
4973 /* Prevent timeout handling from trying to abort job */
4974 job->dd_data = NULL;
4976 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
4978 /* Copy the job data or set the failing status for the job */
4981 /* always return the xri, this would be used in the case
4982 * of a menlo download to allow the data to be sent as a
4983 * continuation of the exchange.
4986 menlo_resp = (struct menlo_response *)
4987 job->reply->reply_data.vendor_reply.vendor_rsp;
4988 menlo_resp->xri = rsp->ulpContext;
4989 if (rsp->ulpStatus) {
4990 if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
4991 switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
4992 case IOERR_SEQUENCE_TIMEOUT:
4995 case IOERR_INVALID_RPI:
5006 rsp_size = rsp->un.genreq64.bdl.bdeSize;
5007 job->reply->reply_payload_rcv_len =
5008 lpfc_bsg_copy_data(rmp, &job->reply_payload,
5014 lpfc_sli_release_iocbq(phba, cmdiocbq);
5015 lpfc_free_bsg_buffers(phba, cmp);
5016 lpfc_free_bsg_buffers(phba, rmp);
5017 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
5021 /* Complete the job if active */
5024 job->reply->result = rc;
5032 * lpfc_menlo_cmd - send an ioctl for menlo hardware
5033 * @job: fc_bsg_job to handle
5035 * This function issues a gen request 64 CR ioctl for all menlo cmd requests,
5036 * all the command completions will return the xri for the command.
5037 * For menlo data requests a gen request 64 CX is used to continue the exchange
5038 * supplied in the menlo request header xri field.
5041 lpfc_menlo_cmd(struct fc_bsg_job *job)
5043 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
5044 struct lpfc_hba *phba = vport->phba;
5045 struct lpfc_iocbq *cmdiocbq;
5048 struct menlo_command *menlo_cmd;
5049 struct menlo_response *menlo_resp;
5050 struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
5053 struct bsg_job_data *dd_data;
5054 struct ulp_bde64 *bpl = NULL;
5056 /* in case no data is returned return just the return code */
5057 job->reply->reply_payload_rcv_len = 0;
5059 if (job->request_len <
5060 sizeof(struct fc_bsg_request) +
5061 sizeof(struct menlo_command)) {
5062 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5063 "2784 Received MENLO_CMD request below "
5069 if (job->reply_len <
5070 sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) {
5071 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5072 "2785 Received MENLO_CMD reply below "
5078 if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) {
5079 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5080 "2786 Adapter does not support menlo "
5086 menlo_cmd = (struct menlo_command *)
5087 job->request->rqst_data.h_vendor.vendor_cmd;
5089 menlo_resp = (struct menlo_response *)
5090 job->reply->reply_data.vendor_reply.vendor_rsp;
5092 /* allocate our bsg tracking structure */
5093 dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
5095 lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
5096 "2787 Failed allocation of dd_data\n");
5101 bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5107 bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
5113 INIT_LIST_HEAD(&bmp->list);
5115 bpl = (struct ulp_bde64 *)bmp->virt;
5116 request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
5117 cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
5118 1, bpl, &request_nseg);
5123 lpfc_bsg_copy_data(cmp, &job->request_payload,
5124 job->request_payload.payload_len, 1);
5126 bpl += request_nseg;
5127 reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
5128 rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
5135 cmdiocbq = lpfc_sli_get_iocbq(phba);
5141 cmd = &cmdiocbq->iocb;
5142 cmd->un.genreq64.bdl.ulpIoTag32 = 0;
5143 cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
5144 cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
5145 cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
5146 cmd->un.genreq64.bdl.bdeSize =
5147 (request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
5148 cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
5149 cmd->un.genreq64.w5.hcsw.Dfctl = 0;
5150 cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD;
5151 cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */
5152 cmd->ulpBdeCount = 1;
5153 cmd->ulpClass = CLASS3;
5154 cmd->ulpOwner = OWN_CHIP;
5155 cmd->ulpLe = 1; /* Limited Edition */
5156 cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
5157 cmdiocbq->vport = phba->pport;
5158 /* We want the firmware to timeout before we do */
5159 cmd->ulpTimeout = MENLO_TIMEOUT - 5;
5160 cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp;
5161 cmdiocbq->context1 = dd_data;
5162 cmdiocbq->context2 = cmp;
5163 cmdiocbq->context3 = bmp;
5164 if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) {
5165 cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
5166 cmd->ulpPU = MENLO_PU; /* 3 */
5167 cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */
5168 cmd->ulpContext = MENLO_CONTEXT; /* 0 */
5170 cmd->ulpCommand = CMD_GEN_REQUEST64_CX;
5172 cmd->un.ulpWord[4] = 0;
5173 cmd->ulpContext = menlo_cmd->xri;
5176 dd_data->type = TYPE_MENLO;
5177 dd_data->set_job = job;
5178 dd_data->context_un.menlo.cmdiocbq = cmdiocbq;
5179 dd_data->context_un.menlo.rmp = rmp;
5180 job->dd_data = dd_data;
5182 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
5184 if (rc == IOCB_SUCCESS)
5185 return 0; /* done for now */
5187 lpfc_sli_release_iocbq(phba, cmdiocbq);
5190 lpfc_free_bsg_buffers(phba, rmp);
5192 lpfc_free_bsg_buffers(phba, cmp);
5195 lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
5200 /* make error code available to userspace */
5201 job->reply->result = rc;
5202 job->dd_data = NULL;
5207 * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job
5208 * @job: fc_bsg_job to handle
5211 lpfc_bsg_hst_vendor(struct fc_bsg_job *job)
5213 int command = job->request->rqst_data.h_vendor.vendor_cmd[0];
5217 case LPFC_BSG_VENDOR_SET_CT_EVENT:
5218 rc = lpfc_bsg_hba_set_event(job);
5220 case LPFC_BSG_VENDOR_GET_CT_EVENT:
5221 rc = lpfc_bsg_hba_get_event(job);
5223 case LPFC_BSG_VENDOR_SEND_MGMT_RESP:
5224 rc = lpfc_bsg_send_mgmt_rsp(job);
5226 case LPFC_BSG_VENDOR_DIAG_MODE:
5227 rc = lpfc_bsg_diag_loopback_mode(job);
5229 case LPFC_BSG_VENDOR_DIAG_MODE_END:
5230 rc = lpfc_sli4_bsg_diag_mode_end(job);
5232 case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK:
5233 rc = lpfc_bsg_diag_loopback_run(job);
5235 case LPFC_BSG_VENDOR_LINK_DIAG_TEST:
5236 rc = lpfc_sli4_bsg_link_diag_test(job);
5238 case LPFC_BSG_VENDOR_GET_MGMT_REV:
5239 rc = lpfc_bsg_get_dfc_rev(job);
5241 case LPFC_BSG_VENDOR_MBOX:
5242 rc = lpfc_bsg_mbox_cmd(job);
5244 case LPFC_BSG_VENDOR_MENLO_CMD:
5245 case LPFC_BSG_VENDOR_MENLO_DATA:
5246 rc = lpfc_menlo_cmd(job);
5250 job->reply->reply_payload_rcv_len = 0;
5251 /* make error code available to userspace */
5252 job->reply->result = rc;
5260 * lpfc_bsg_request - handle a bsg request from the FC transport
5261 * @job: fc_bsg_job to handle
5264 lpfc_bsg_request(struct fc_bsg_job *job)
5269 msgcode = job->request->msgcode;
5271 case FC_BSG_HST_VENDOR:
5272 rc = lpfc_bsg_hst_vendor(job);
5274 case FC_BSG_RPT_ELS:
5275 rc = lpfc_bsg_rport_els(job);
5278 rc = lpfc_bsg_send_mgmt_cmd(job);
5282 job->reply->reply_payload_rcv_len = 0;
5283 /* make error code available to userspace */
5284 job->reply->result = rc;
5292 * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport
5293 * @job: fc_bsg_job that has timed out
5295 * This function just aborts the job's IOCB. The aborted IOCB will return to
5296 * the waiting function which will handle passing the error back to userspace
5299 lpfc_bsg_timeout(struct fc_bsg_job *job)
5301 struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
5302 struct lpfc_hba *phba = vport->phba;
5303 struct lpfc_iocbq *cmdiocb;
5304 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5305 struct bsg_job_data *dd_data;
5306 unsigned long flags;
5308 LIST_HEAD(completions);
5309 struct lpfc_iocbq *check_iocb, *next_iocb;
5311 /* if job's driver data is NULL, the command completed or is in the
5312 * the process of completing. In this case, return status to request
5313 * so the timeout is retried. This avoids double completion issues
5314 * and the request will be pulled off the timer queue when the
5315 * command's completion handler executes. Otherwise, prevent the
5316 * command's completion handler from executing the job done callback
5317 * and continue processing to abort the outstanding the command.
5320 spin_lock_irqsave(&phba->ct_ev_lock, flags);
5321 dd_data = (struct bsg_job_data *)job->dd_data;
5323 dd_data->set_job = NULL;
5324 job->dd_data = NULL;
5326 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5330 switch (dd_data->type) {
5332 /* Check to see if IOCB was issued to the port or not. If not,
5333 * remove it from the txq queue and call cancel iocbs.
5334 * Otherwise, call abort iotag
5336 cmdiocb = dd_data->context_un.iocb.cmdiocbq;
5337 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5339 spin_lock_irqsave(&phba->hbalock, flags);
5340 /* make sure the I/O abort window is still open */
5341 if (!(cmdiocb->iocb_flag & LPFC_IO_CMD_OUTSTANDING)) {
5342 spin_unlock_irqrestore(&phba->hbalock, flags);
5345 list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
5347 if (check_iocb == cmdiocb) {
5348 list_move_tail(&check_iocb->list, &completions);
5352 if (list_empty(&completions))
5353 lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
5354 spin_unlock_irqrestore(&phba->hbalock, flags);
5355 if (!list_empty(&completions)) {
5356 lpfc_sli_cancel_iocbs(phba, &completions,
5357 IOSTAT_LOCAL_REJECT,
5363 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5367 /* Update the ext buf ctx state if needed */
5369 if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
5370 phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
5371 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5374 /* Check to see if IOCB was issued to the port or not. If not,
5375 * remove it from the txq queue and call cancel iocbs.
5376 * Otherwise, call abort iotag.
5378 cmdiocb = dd_data->context_un.menlo.cmdiocbq;
5379 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5381 spin_lock_irqsave(&phba->hbalock, flags);
5382 list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
5384 if (check_iocb == cmdiocb) {
5385 list_move_tail(&check_iocb->list, &completions);
5389 if (list_empty(&completions))
5390 lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
5391 spin_unlock_irqrestore(&phba->hbalock, flags);
5392 if (!list_empty(&completions)) {
5393 lpfc_sli_cancel_iocbs(phba, &completions,
5394 IOSTAT_LOCAL_REJECT,
5399 spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
5403 /* scsi transport fc fc_bsg_job_timeout expects a zero return code,
5404 * otherwise an error message will be displayed on the console
5405 * so always return success (zero)