1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2005 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
26 #include <scsi/scsi.h>
27 #include <scsi/scsi_device.h>
28 #include <scsi/scsi_host.h>
29 #include <scsi/scsi_transport_fc.h>
33 #include "lpfc_disc.h"
34 #include "lpfc_scsi.h"
36 #include "lpfc_logmsg.h"
37 #include "lpfc_crtn.h"
39 static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
41 static int lpfc_max_els_tries = 3;
44 lpfc_els_chk_latt(struct lpfc_hba * phba)
46 struct lpfc_sli *psli;
53 if ((phba->hba_state >= LPFC_HBA_READY) ||
54 (phba->hba_state == LPFC_LINK_DOWN))
57 /* Read the HBA Host Attention Register */
58 spin_lock_irq(phba->host->host_lock);
59 ha_copy = readl(phba->HAregaddr);
60 spin_unlock_irq(phba->host->host_lock);
62 if (!(ha_copy & HA_LATT))
65 /* Pending Link Event during Discovery */
66 lpfc_printf_log(phba, KERN_WARNING, LOG_DISCOVERY,
67 "%d:0237 Pending Link Event during "
68 "Discovery: State x%x\n",
69 phba->brd_no, phba->hba_state);
71 /* CLEAR_LA should re-enable link attention events and
72 * we should then imediately take a LATT event. The
73 * LATT processing should call lpfc_linkdown() which
74 * will cleanup any left over in-progress discovery
77 spin_lock_irq(phba->host->host_lock);
78 phba->fc_flag |= FC_ABORT_DISCOVERY;
79 spin_unlock_irq(phba->host->host_lock);
81 if (phba->hba_state != LPFC_CLEAR_LA) {
82 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
83 phba->hba_state = LPFC_CLEAR_LA;
84 lpfc_clear_la(phba, mbox);
85 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
86 rc = lpfc_sli_issue_mbox (phba, mbox,
87 (MBX_NOWAIT | MBX_STOP_IOCB));
88 if (rc == MBX_NOT_FINISHED) {
89 mempool_free(mbox, phba->mbox_mem_pool);
90 phba->hba_state = LPFC_HBA_ERROR;
99 static struct lpfc_iocbq *
100 lpfc_prep_els_iocb(struct lpfc_hba * phba,
103 uint8_t retry, struct lpfc_nodelist * ndlp, uint32_t elscmd)
105 struct lpfc_sli_ring *pring;
106 struct lpfc_iocbq *elsiocb;
107 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
108 struct ulp_bde64 *bpl;
111 pring = &phba->sli.ring[LPFC_ELS_RING];
113 if (phba->hba_state < LPFC_LINK_UP)
116 /* Allocate buffer for command iocb */
117 spin_lock_irq(phba->host->host_lock);
118 elsiocb = lpfc_sli_get_iocbq(phba);
119 spin_unlock_irq(phba->host->host_lock);
123 icmd = &elsiocb->iocb;
125 /* fill in BDEs for command */
126 /* Allocate buffer for command payload */
127 if (((pcmd = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
128 ((pcmd->virt = lpfc_mbuf_alloc(phba,
129 MEM_PRI, &(pcmd->phys))) == 0)) {
132 spin_lock_irq(phba->host->host_lock);
133 lpfc_sli_release_iocbq(phba, elsiocb);
134 spin_unlock_irq(phba->host->host_lock);
138 INIT_LIST_HEAD(&pcmd->list);
140 /* Allocate buffer for response payload */
142 prsp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
144 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
146 if (prsp == 0 || prsp->virt == 0) {
148 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
150 spin_lock_irq(phba->host->host_lock);
151 lpfc_sli_release_iocbq(phba, elsiocb);
152 spin_unlock_irq(phba->host->host_lock);
155 INIT_LIST_HEAD(&prsp->list);
160 /* Allocate buffer for Buffer ptr list */
161 pbuflist = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
163 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
165 if (pbuflist == 0 || pbuflist->virt == 0) {
166 spin_lock_irq(phba->host->host_lock);
167 lpfc_sli_release_iocbq(phba, elsiocb);
168 spin_unlock_irq(phba->host->host_lock);
169 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
170 lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
177 INIT_LIST_HEAD(&pbuflist->list);
179 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
180 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
181 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BDL;
183 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64));
184 icmd->un.elsreq64.remoteID = ndlp->nlp_DID; /* DID */
185 icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
187 icmd->un.elsreq64.bdl.bdeSize = sizeof (struct ulp_bde64);
188 icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
191 icmd->ulpBdeCount = 1;
193 icmd->ulpClass = CLASS3;
195 bpl = (struct ulp_bde64 *) pbuflist->virt;
196 bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
197 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
198 bpl->tus.f.bdeSize = cmdSize;
199 bpl->tus.f.bdeFlags = 0;
200 bpl->tus.w = le32_to_cpu(bpl->tus.w);
204 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
205 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
206 bpl->tus.f.bdeSize = FCELSSIZE;
207 bpl->tus.f.bdeFlags = BUFF_USE_RCV;
208 bpl->tus.w = le32_to_cpu(bpl->tus.w);
211 /* Save for completion so we can release these resources */
212 elsiocb->context1 = (uint8_t *) ndlp;
213 elsiocb->context2 = (uint8_t *) pcmd;
214 elsiocb->context3 = (uint8_t *) pbuflist;
215 elsiocb->retry = retry;
216 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
219 list_add(&prsp->list, &pcmd->list);
223 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
224 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
225 "%d:0116 Xmit ELS command x%x to remote "
226 "NPORT x%x Data: x%x x%x\n",
227 phba->brd_no, elscmd,
228 ndlp->nlp_DID, icmd->ulpIoTag, phba->hba_state);
230 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
231 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
232 "%d:0117 Xmit ELS response x%x to remote "
233 "NPORT x%x Data: x%x x%x\n",
234 phba->brd_no, elscmd,
235 ndlp->nlp_DID, icmd->ulpIoTag, cmdSize);
243 lpfc_cmpl_els_flogi_fabric(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
244 struct serv_parm *sp, IOCB_t *irsp)
249 spin_lock_irq(phba->host->host_lock);
250 phba->fc_flag |= FC_FABRIC;
251 spin_unlock_irq(phba->host->host_lock);
253 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
254 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
255 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
257 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
259 if (phba->fc_topology == TOPOLOGY_LOOP) {
260 spin_lock_irq(phba->host->host_lock);
261 phba->fc_flag |= FC_PUBLIC_LOOP;
262 spin_unlock_irq(phba->host->host_lock);
265 * If we are a N-port connected to a Fabric, fixup sparam's so
266 * logins to devices on remote loops work.
268 phba->fc_sparam.cmn.altBbCredit = 1;
271 phba->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
272 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
273 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
274 ndlp->nlp_class_sup = 0;
275 if (sp->cls1.classValid)
276 ndlp->nlp_class_sup |= FC_COS_CLASS1;
277 if (sp->cls2.classValid)
278 ndlp->nlp_class_sup |= FC_COS_CLASS2;
279 if (sp->cls3.classValid)
280 ndlp->nlp_class_sup |= FC_COS_CLASS3;
281 if (sp->cls4.classValid)
282 ndlp->nlp_class_sup |= FC_COS_CLASS4;
283 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
284 sp->cmn.bbRcvSizeLsb;
285 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
287 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
291 phba->hba_state = LPFC_FABRIC_CFG_LINK;
292 lpfc_config_link(phba, mbox);
293 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
295 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
296 if (rc == MBX_NOT_FINISHED)
299 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
303 if (lpfc_reg_login(phba, Fabric_DID, (uint8_t *) sp, mbox, 0))
307 * set_slim mailbox command needs to execute first,
308 * queue this command to be processed later.
310 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
311 mbox->context2 = ndlp;
313 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB);
314 if (rc == MBX_NOT_FINISHED)
320 mempool_free(mbox, phba->mbox_mem_pool);
326 * We FLOGIed into an NPort, initiate pt2pt protocol
329 lpfc_cmpl_els_flogi_nport(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
330 struct serv_parm *sp)
335 spin_lock_irq(phba->host->host_lock);
336 phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
337 spin_unlock_irq(phba->host->host_lock);
339 phba->fc_edtov = FF_DEF_EDTOV;
340 phba->fc_ratov = FF_DEF_RATOV;
341 rc = memcmp(&phba->fc_portname, &sp->portName,
342 sizeof(struct lpfc_name));
344 /* This side will initiate the PLOGI */
345 spin_lock_irq(phba->host->host_lock);
346 phba->fc_flag |= FC_PT2PT_PLOGI;
347 spin_unlock_irq(phba->host->host_lock);
350 * N_Port ID cannot be 0, set our to LocalID the other
351 * side will be RemoteID.
356 phba->fc_myDID = PT2PT_LocalID;
358 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
362 lpfc_config_link(phba, mbox);
364 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
365 rc = lpfc_sli_issue_mbox(phba, mbox,
366 MBX_NOWAIT | MBX_STOP_IOCB);
367 if (rc == MBX_NOT_FINISHED) {
368 mempool_free(mbox, phba->mbox_mem_pool);
371 mempool_free(ndlp, phba->nlp_mem_pool);
373 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, PT2PT_RemoteID);
376 * Cannot find existing Fabric ndlp, so allocate a
379 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
383 lpfc_nlp_init(phba, ndlp, PT2PT_RemoteID);
386 memcpy(&ndlp->nlp_portname, &sp->portName,
387 sizeof(struct lpfc_name));
388 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
389 sizeof(struct lpfc_name));
390 ndlp->nlp_state = NLP_STE_NPR_NODE;
391 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
392 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
394 /* This side will wait for the PLOGI */
395 mempool_free( ndlp, phba->nlp_mem_pool);
398 spin_lock_irq(phba->host->host_lock);
399 phba->fc_flag |= FC_PT2PT;
400 spin_unlock_irq(phba->host->host_lock);
402 /* Start discovery - this should just do CLEAR_LA */
403 lpfc_disc_start(phba);
410 lpfc_cmpl_els_flogi(struct lpfc_hba * phba,
411 struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb)
413 IOCB_t *irsp = &rspiocb->iocb;
414 struct lpfc_nodelist *ndlp = cmdiocb->context1;
415 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
416 struct serv_parm *sp;
419 /* Check to see if link went down during discovery */
420 if (lpfc_els_chk_latt(phba)) {
421 lpfc_nlp_remove(phba, ndlp);
425 if (irsp->ulpStatus) {
426 /* Check for retry */
427 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
428 /* ELS command is being retried */
431 /* FLOGI failed, so there is no fabric */
432 spin_lock_irq(phba->host->host_lock);
433 phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
434 spin_unlock_irq(phba->host->host_lock);
436 /* If private loop, then allow max outstandting els to be
437 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
438 * alpa map would take too long otherwise.
440 if (phba->alpa_map[0] == 0) {
441 phba->cfg_discovery_threads =
442 LPFC_MAX_DISC_THREADS;
446 lpfc_printf_log(phba,
449 "%d:0100 FLOGI failure Data: x%x x%x x%x\n",
451 irsp->ulpStatus, irsp->un.ulpWord[4],
457 * The FLogI succeeded. Sync the data for the CPU before
460 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
462 sp = prsp->virt + sizeof(uint32_t);
464 /* FLOGI completes successfully */
465 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
466 "%d:0101 FLOGI completes sucessfully "
467 "Data: x%x x%x x%x x%x\n",
469 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
470 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution);
472 if (phba->hba_state == LPFC_FLOGI) {
474 * If Common Service Parameters indicate Nport
475 * we are point to point, if Fport we are Fabric.
478 rc = lpfc_cmpl_els_flogi_fabric(phba, ndlp, sp, irsp);
480 rc = lpfc_cmpl_els_flogi_nport(phba, ndlp, sp);
487 lpfc_nlp_remove(phba, ndlp);
489 if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT ||
490 (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED &&
491 irsp->un.ulpWord[4] != IOERR_SLI_DOWN)) {
492 /* FLOGI failed, so just use loop map to make discovery list */
493 lpfc_disc_list_loopmap(phba);
495 /* Start discovery */
496 lpfc_disc_start(phba);
500 lpfc_els_free_iocb(phba, cmdiocb);
504 lpfc_issue_els_flogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
507 struct serv_parm *sp;
509 struct lpfc_iocbq *elsiocb;
510 struct lpfc_sli_ring *pring;
516 pring = &phba->sli.ring[LPFC_ELS_RING];
518 cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm));
519 if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry,
520 ndlp, ELS_CMD_FLOGI)) == 0) {
524 icmd = &elsiocb->iocb;
525 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
527 /* For FLOGI request, remainder of payload is service parameters */
528 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
529 pcmd += sizeof (uint32_t);
530 memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
531 sp = (struct serv_parm *) pcmd;
533 /* Setup CSPs accordingly for Fabric */
535 sp->cmn.w2.r_a_tov = 0;
536 sp->cls1.classValid = 0;
537 sp->cls2.seqDelivery = 1;
538 sp->cls3.seqDelivery = 1;
539 if (sp->cmn.fcphLow < FC_PH3)
540 sp->cmn.fcphLow = FC_PH3;
541 if (sp->cmn.fcphHigh < FC_PH3)
542 sp->cmn.fcphHigh = FC_PH3;
544 tmo = phba->fc_ratov;
545 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
546 lpfc_set_disctmo(phba);
547 phba->fc_ratov = tmo;
549 phba->fc_stat.elsXmitFLOGI++;
550 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
551 spin_lock_irq(phba->host->host_lock);
552 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
553 spin_unlock_irq(phba->host->host_lock);
554 if (rc == IOCB_ERROR) {
555 lpfc_els_free_iocb(phba, elsiocb);
562 lpfc_els_abort_flogi(struct lpfc_hba * phba)
564 struct lpfc_sli_ring *pring;
565 struct lpfc_iocbq *iocb, *next_iocb;
566 struct lpfc_nodelist *ndlp;
569 /* Abort outstanding I/O on NPort <nlp_DID> */
570 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
571 "%d:0201 Abort outstanding I/O on NPort x%x\n",
572 phba->brd_no, Fabric_DID);
574 pring = &phba->sli.ring[LPFC_ELS_RING];
577 * Check the txcmplq for an iocb that matches the nport the driver is
580 spin_lock_irq(phba->host->host_lock);
581 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
583 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
584 ndlp = (struct lpfc_nodelist *)(iocb->context1);
585 if (ndlp && (ndlp->nlp_DID == Fabric_DID)) {
586 list_del(&iocb->list);
587 pring->txcmplq_cnt--;
589 if ((icmd->un.elsreq64.bdl.ulpIoTag32)) {
590 lpfc_sli_issue_abort_iotag32
593 if (iocb->iocb_cmpl) {
594 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
595 icmd->un.ulpWord[4] =
597 spin_unlock_irq(phba->host->host_lock);
598 (iocb->iocb_cmpl) (phba, iocb, iocb);
599 spin_lock_irq(phba->host->host_lock);
601 lpfc_sli_release_iocbq(phba, iocb);
605 spin_unlock_irq(phba->host->host_lock);
611 lpfc_initial_flogi(struct lpfc_hba * phba)
613 struct lpfc_nodelist *ndlp;
615 /* First look for the Fabric ndlp */
616 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, Fabric_DID);
618 /* Cannot find existing Fabric ndlp, so allocate a new one */
619 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
622 lpfc_nlp_init(phba, ndlp, Fabric_DID);
624 lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
626 if (lpfc_issue_els_flogi(phba, ndlp, 0)) {
627 mempool_free( ndlp, phba->nlp_mem_pool);
633 lpfc_more_plogi(struct lpfc_hba * phba)
637 if (phba->num_disc_nodes)
638 phba->num_disc_nodes--;
640 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
641 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
642 "%d:0232 Continue discovery with %d PLOGIs to go "
643 "Data: x%x x%x x%x\n",
644 phba->brd_no, phba->num_disc_nodes, phba->fc_plogi_cnt,
645 phba->fc_flag, phba->hba_state);
647 /* Check to see if there are more PLOGIs to be sent */
648 if (phba->fc_flag & FC_NLP_MORE) {
649 /* go thru NPR list and issue any remaining ELS PLOGIs */
650 sentplogi = lpfc_els_disc_plogi(phba);
656 lpfc_cmpl_els_plogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
657 struct lpfc_iocbq * rspiocb)
660 struct lpfc_sli *psli;
661 struct lpfc_nodelist *ndlp;
662 int disc, rc, did, type;
666 /* we pass cmdiocb to state machine which needs rspiocb as well */
667 cmdiocb->context_un.rsp_iocb = rspiocb;
669 irsp = &rspiocb->iocb;
670 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
672 /* Since ndlp can be freed in the disc state machine, note if this node
673 * is being used during discovery.
675 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
676 spin_lock_irq(phba->host->host_lock);
677 ndlp->nlp_flag &= ~(NLP_PLOGI_SND | NLP_NPR_2B_DISC);
678 spin_unlock_irq(phba->host->host_lock);
681 /* PLOGI completes to NPort <nlp_DID> */
682 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
683 "%d:0102 PLOGI completes to NPort x%x "
684 "Data: x%x x%x x%x x%x x%x\n",
685 phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
686 irsp->un.ulpWord[4], irsp->ulpTimeout, disc,
687 phba->num_disc_nodes);
689 /* Check to see if link went down during discovery */
690 if (lpfc_els_chk_latt(phba)) {
691 spin_lock_irq(phba->host->host_lock);
692 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
693 spin_unlock_irq(phba->host->host_lock);
697 /* ndlp could be freed in DSM, save these values now */
698 type = ndlp->nlp_type;
701 if (irsp->ulpStatus) {
702 /* Check for retry */
703 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
704 /* ELS command is being retried */
706 spin_lock_irq(phba->host->host_lock);
707 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
708 spin_unlock_irq(phba->host->host_lock);
714 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
715 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
716 ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
717 (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
718 (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
719 rc = NLP_STE_FREED_NODE;
722 rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb,
726 /* Good status, call state machine */
727 rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb,
731 if (type & NLP_FABRIC) {
732 /* If we cannot login to Nameserver, kick off discovery now */
733 if ((did == NameServer_DID) && (rc == NLP_STE_FREED_NODE)) {
734 lpfc_disc_start(phba);
739 if (disc && phba->num_disc_nodes) {
740 /* Check to see if there are more PLOGIs to be sent */
741 lpfc_more_plogi(phba);
744 if (phba->num_disc_nodes == 0) {
745 spin_lock_irq(phba->host->host_lock);
746 phba->fc_flag &= ~FC_NDISC_ACTIVE;
747 spin_unlock_irq(phba->host->host_lock);
749 lpfc_can_disctmo(phba);
750 if (phba->fc_flag & FC_RSCN_MODE) {
751 /* Check to see if more RSCNs came in while we were
752 * processing this one.
754 if ((phba->fc_rscn_id_cnt == 0) &&
755 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
756 spin_lock_irq(phba->host->host_lock);
757 phba->fc_flag &= ~FC_RSCN_MODE;
758 spin_unlock_irq(phba->host->host_lock);
760 lpfc_els_handle_rscn(phba);
766 lpfc_els_free_iocb(phba, cmdiocb);
771 lpfc_issue_els_plogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
774 struct serv_parm *sp;
776 struct lpfc_iocbq *elsiocb;
777 struct lpfc_sli_ring *pring;
778 struct lpfc_sli *psli;
783 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
785 cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm));
786 elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp,
791 icmd = &elsiocb->iocb;
792 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
794 /* For PLOGI request, remainder of payload is service parameters */
795 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
796 pcmd += sizeof (uint32_t);
797 memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
798 sp = (struct serv_parm *) pcmd;
800 if (sp->cmn.fcphLow < FC_PH_4_3)
801 sp->cmn.fcphLow = FC_PH_4_3;
803 if (sp->cmn.fcphHigh < FC_PH3)
804 sp->cmn.fcphHigh = FC_PH3;
806 phba->fc_stat.elsXmitPLOGI++;
807 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
808 spin_lock_irq(phba->host->host_lock);
809 ndlp->nlp_flag |= NLP_PLOGI_SND;
810 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
811 ndlp->nlp_flag &= ~NLP_PLOGI_SND;
812 spin_unlock_irq(phba->host->host_lock);
813 lpfc_els_free_iocb(phba, elsiocb);
816 spin_unlock_irq(phba->host->host_lock);
821 lpfc_cmpl_els_prli(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
822 struct lpfc_iocbq * rspiocb)
825 struct lpfc_sli *psli;
826 struct lpfc_nodelist *ndlp;
829 /* we pass cmdiocb to state machine which needs rspiocb as well */
830 cmdiocb->context_un.rsp_iocb = rspiocb;
832 irsp = &(rspiocb->iocb);
833 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
834 spin_lock_irq(phba->host->host_lock);
835 ndlp->nlp_flag &= ~NLP_PRLI_SND;
836 spin_unlock_irq(phba->host->host_lock);
838 /* PRLI completes to NPort <nlp_DID> */
839 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
840 "%d:0103 PRLI completes to NPort x%x "
841 "Data: x%x x%x x%x x%x\n",
842 phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
843 irsp->un.ulpWord[4], irsp->ulpTimeout,
844 phba->num_disc_nodes);
846 phba->fc_prli_sent--;
847 /* Check to see if link went down during discovery */
848 if (lpfc_els_chk_latt(phba))
851 if (irsp->ulpStatus) {
852 /* Check for retry */
853 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
854 /* ELS command is being retried */
858 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
859 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
860 ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
861 (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
862 (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
866 lpfc_disc_state_machine(phba, ndlp, cmdiocb,
870 /* Good status, call state machine */
871 lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_PRLI);
875 lpfc_els_free_iocb(phba, cmdiocb);
880 lpfc_issue_els_prli(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
885 struct lpfc_iocbq *elsiocb;
886 struct lpfc_sli_ring *pring;
887 struct lpfc_sli *psli;
892 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
894 cmdsize = (sizeof (uint32_t) + sizeof (PRLI));
895 if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry,
896 ndlp, ELS_CMD_PRLI)) == 0) {
900 icmd = &elsiocb->iocb;
901 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
903 /* For PRLI request, remainder of payload is service parameters */
904 memset(pcmd, 0, (sizeof (PRLI) + sizeof (uint32_t)));
905 *((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
906 pcmd += sizeof (uint32_t);
908 /* For PRLI, remainder of payload is PRLI parameter page */
911 * If our firmware version is 3.20 or later,
912 * set the following bits for FC-TAPE support.
914 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
915 npr->ConfmComplAllowed = 1;
917 npr->TaskRetryIdReq = 1;
919 npr->estabImagePair = 1;
920 npr->readXferRdyDis = 1;
922 /* For FCP support */
923 npr->prliType = PRLI_FCP_TYPE;
924 npr->initiatorFunc = 1;
926 phba->fc_stat.elsXmitPRLI++;
927 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
928 spin_lock_irq(phba->host->host_lock);
929 ndlp->nlp_flag |= NLP_PRLI_SND;
930 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
931 ndlp->nlp_flag &= ~NLP_PRLI_SND;
932 spin_unlock_irq(phba->host->host_lock);
933 lpfc_els_free_iocb(phba, elsiocb);
936 spin_unlock_irq(phba->host->host_lock);
937 phba->fc_prli_sent++;
942 lpfc_more_adisc(struct lpfc_hba * phba)
946 if (phba->num_disc_nodes)
947 phba->num_disc_nodes--;
949 /* Continue discovery with <num_disc_nodes> ADISCs to go */
950 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
951 "%d:0210 Continue discovery with %d ADISCs to go "
952 "Data: x%x x%x x%x\n",
953 phba->brd_no, phba->num_disc_nodes, phba->fc_adisc_cnt,
954 phba->fc_flag, phba->hba_state);
956 /* Check to see if there are more ADISCs to be sent */
957 if (phba->fc_flag & FC_NLP_MORE) {
958 lpfc_set_disctmo(phba);
960 /* go thru NPR list and issue any remaining ELS ADISCs */
961 sentadisc = lpfc_els_disc_adisc(phba);
967 lpfc_rscn_disc(struct lpfc_hba * phba)
970 /* go thru NPR list and issue ELS PLOGIs */
971 if (phba->fc_npr_cnt) {
972 if (lpfc_els_disc_plogi(phba))
975 if (phba->fc_flag & FC_RSCN_MODE) {
976 /* Check to see if more RSCNs came in while we were
977 * processing this one.
979 if ((phba->fc_rscn_id_cnt == 0) &&
980 (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
981 spin_lock_irq(phba->host->host_lock);
982 phba->fc_flag &= ~FC_RSCN_MODE;
983 spin_unlock_irq(phba->host->host_lock);
985 lpfc_els_handle_rscn(phba);
991 lpfc_cmpl_els_adisc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
992 struct lpfc_iocbq * rspiocb)
995 struct lpfc_sli *psli;
996 struct lpfc_nodelist *ndlp;
1002 /* we pass cmdiocb to state machine which needs rspiocb as well */
1003 cmdiocb->context_un.rsp_iocb = rspiocb;
1005 irsp = &(rspiocb->iocb);
1006 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1008 /* Since ndlp can be freed in the disc state machine, note if this node
1009 * is being used during discovery.
1011 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1012 spin_lock_irq(phba->host->host_lock);
1013 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
1014 spin_unlock_irq(phba->host->host_lock);
1016 /* ADISC completes to NPort <nlp_DID> */
1017 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1018 "%d:0104 ADISC completes to NPort x%x "
1019 "Data: x%x x%x x%x x%x x%x\n",
1020 phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
1021 irsp->un.ulpWord[4], irsp->ulpTimeout, disc,
1022 phba->num_disc_nodes);
1024 /* Check to see if link went down during discovery */
1025 if (lpfc_els_chk_latt(phba)) {
1026 spin_lock_irq(phba->host->host_lock);
1027 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1028 spin_unlock_irq(phba->host->host_lock);
1032 if (irsp->ulpStatus) {
1033 /* Check for retry */
1034 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1035 /* ELS command is being retried */
1037 spin_lock_irq(phba->host->host_lock);
1038 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1039 spin_unlock_irq(phba->host->host_lock);
1040 lpfc_set_disctmo(phba);
1045 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1046 if ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1047 ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) &&
1048 (irsp->un.ulpWord[4] != IOERR_LINK_DOWN) &&
1049 (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) {
1050 lpfc_disc_state_machine(phba, ndlp, cmdiocb,
1051 NLP_EVT_CMPL_ADISC);
1054 /* Good status, call state machine */
1055 lpfc_disc_state_machine(phba, ndlp, cmdiocb,
1056 NLP_EVT_CMPL_ADISC);
1059 if (disc && phba->num_disc_nodes) {
1060 /* Check to see if there are more ADISCs to be sent */
1061 lpfc_more_adisc(phba);
1063 /* Check to see if we are done with ADISC authentication */
1064 if (phba->num_disc_nodes == 0) {
1065 lpfc_can_disctmo(phba);
1066 /* If we get here, there is nothing left to wait for */
1067 if ((phba->hba_state < LPFC_HBA_READY) &&
1068 (phba->hba_state != LPFC_CLEAR_LA)) {
1069 /* Link up discovery */
1070 if ((mbox = mempool_alloc(phba->mbox_mem_pool,
1072 phba->hba_state = LPFC_CLEAR_LA;
1073 lpfc_clear_la(phba, mbox);
1075 lpfc_mbx_cmpl_clear_la;
1076 rc = lpfc_sli_issue_mbox
1078 (MBX_NOWAIT | MBX_STOP_IOCB));
1079 if (rc == MBX_NOT_FINISHED) {
1081 phba->mbox_mem_pool);
1082 lpfc_disc_flush_list(phba);
1083 psli->ring[(psli->ip_ring)].
1085 ~LPFC_STOP_IOCB_EVENT;
1086 psli->ring[(psli->fcp_ring)].
1088 ~LPFC_STOP_IOCB_EVENT;
1089 psli->ring[(psli->next_ring)].
1091 ~LPFC_STOP_IOCB_EVENT;
1097 lpfc_rscn_disc(phba);
1102 lpfc_els_free_iocb(phba, cmdiocb);
1107 lpfc_issue_els_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
1112 struct lpfc_iocbq *elsiocb;
1113 struct lpfc_sli_ring *pring;
1114 struct lpfc_sli *psli;
1119 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1121 cmdsize = (sizeof (uint32_t) + sizeof (ADISC));
1122 if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry,
1123 ndlp, ELS_CMD_ADISC)) == 0) {
1127 icmd = &elsiocb->iocb;
1128 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1130 /* For ADISC request, remainder of payload is service parameters */
1131 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
1132 pcmd += sizeof (uint32_t);
1134 /* Fill in ADISC payload */
1135 ap = (ADISC *) pcmd;
1136 ap->hardAL_PA = phba->fc_pref_ALPA;
1137 memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name));
1138 memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
1139 ap->DID = be32_to_cpu(phba->fc_myDID);
1141 phba->fc_stat.elsXmitADISC++;
1142 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
1143 spin_lock_irq(phba->host->host_lock);
1144 ndlp->nlp_flag |= NLP_ADISC_SND;
1145 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1146 ndlp->nlp_flag &= ~NLP_ADISC_SND;
1147 spin_unlock_irq(phba->host->host_lock);
1148 lpfc_els_free_iocb(phba, elsiocb);
1151 spin_unlock_irq(phba->host->host_lock);
1156 lpfc_cmpl_els_logo(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1157 struct lpfc_iocbq * rspiocb)
1160 struct lpfc_sli *psli;
1161 struct lpfc_nodelist *ndlp;
1164 /* we pass cmdiocb to state machine which needs rspiocb as well */
1165 cmdiocb->context_un.rsp_iocb = rspiocb;
1167 irsp = &(rspiocb->iocb);
1168 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1169 spin_lock_irq(phba->host->host_lock);
1170 ndlp->nlp_flag &= ~NLP_LOGO_SND;
1171 spin_unlock_irq(phba->host->host_lock);
1173 /* LOGO completes to NPort <nlp_DID> */
1174 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1175 "%d:0105 LOGO completes to NPort x%x "
1176 "Data: x%x x%x x%x x%x\n",
1177 phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus,
1178 irsp->un.ulpWord[4], irsp->ulpTimeout,
1179 phba->num_disc_nodes);
1181 /* Check to see if link went down during discovery */
1182 if (lpfc_els_chk_latt(phba))
1185 if (irsp->ulpStatus) {
1186 /* Check for retry */
1187 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1188 /* ELS command is being retried */
1192 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1193 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1194 ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
1195 (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
1196 (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) {
1200 lpfc_disc_state_machine(phba, ndlp, cmdiocb,
1204 /* Good status, call state machine */
1205 lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
1207 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1208 lpfc_unreg_rpi(phba, ndlp);
1213 lpfc_els_free_iocb(phba, cmdiocb);
1218 lpfc_issue_els_logo(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
1222 struct lpfc_iocbq *elsiocb;
1223 struct lpfc_sli_ring *pring;
1224 struct lpfc_sli *psli;
1229 pring = &psli->ring[LPFC_ELS_RING];
1231 cmdsize = 2 * (sizeof (uint32_t) + sizeof (struct lpfc_name));
1232 if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry,
1233 ndlp, ELS_CMD_LOGO)) == 0) {
1237 icmd = &elsiocb->iocb;
1238 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1239 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
1240 pcmd += sizeof (uint32_t);
1242 /* Fill in LOGO payload */
1243 *((uint32_t *) (pcmd)) = be32_to_cpu(phba->fc_myDID);
1244 pcmd += sizeof (uint32_t);
1245 memcpy(pcmd, &phba->fc_portname, sizeof (struct lpfc_name));
1247 phba->fc_stat.elsXmitLOGO++;
1248 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
1249 spin_lock_irq(phba->host->host_lock);
1250 ndlp->nlp_flag |= NLP_LOGO_SND;
1251 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1252 ndlp->nlp_flag &= ~NLP_LOGO_SND;
1253 spin_unlock_irq(phba->host->host_lock);
1254 lpfc_els_free_iocb(phba, elsiocb);
1257 spin_unlock_irq(phba->host->host_lock);
1262 lpfc_cmpl_els_cmd(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1263 struct lpfc_iocbq * rspiocb)
1267 irsp = &rspiocb->iocb;
1269 /* ELS cmd tag <ulpIoTag> completes */
1270 lpfc_printf_log(phba,
1273 "%d:0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
1275 irsp->ulpIoTag, irsp->ulpStatus,
1276 irsp->un.ulpWord[4], irsp->ulpTimeout);
1278 /* Check to see if link went down during discovery */
1279 lpfc_els_chk_latt(phba);
1280 lpfc_els_free_iocb(phba, cmdiocb);
1285 lpfc_issue_els_scr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry)
1288 struct lpfc_iocbq *elsiocb;
1289 struct lpfc_sli_ring *pring;
1290 struct lpfc_sli *psli;
1293 struct lpfc_nodelist *ndlp;
1296 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1297 cmdsize = (sizeof (uint32_t) + sizeof (SCR));
1298 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1302 lpfc_nlp_init(phba, ndlp, nportid);
1304 if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry,
1305 ndlp, ELS_CMD_SCR)) == 0) {
1306 mempool_free( ndlp, phba->nlp_mem_pool);
1310 icmd = &elsiocb->iocb;
1311 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1313 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
1314 pcmd += sizeof (uint32_t);
1316 /* For SCR, remainder of payload is SCR parameter page */
1317 memset(pcmd, 0, sizeof (SCR));
1318 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
1320 phba->fc_stat.elsXmitSCR++;
1321 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
1322 spin_lock_irq(phba->host->host_lock);
1323 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1324 spin_unlock_irq(phba->host->host_lock);
1325 mempool_free( ndlp, phba->nlp_mem_pool);
1326 lpfc_els_free_iocb(phba, elsiocb);
1329 spin_unlock_irq(phba->host->host_lock);
1330 mempool_free( ndlp, phba->nlp_mem_pool);
1335 lpfc_issue_els_farpr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry)
1338 struct lpfc_iocbq *elsiocb;
1339 struct lpfc_sli_ring *pring;
1340 struct lpfc_sli *psli;
1345 struct lpfc_nodelist *ondlp;
1346 struct lpfc_nodelist *ndlp;
1349 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1350 cmdsize = (sizeof (uint32_t) + sizeof (FARP));
1351 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1354 lpfc_nlp_init(phba, ndlp, nportid);
1356 if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry,
1357 ndlp, ELS_CMD_RNID)) == 0) {
1358 mempool_free( ndlp, phba->nlp_mem_pool);
1362 icmd = &elsiocb->iocb;
1363 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1365 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
1366 pcmd += sizeof (uint32_t);
1368 /* Fill in FARPR payload */
1369 fp = (FARP *) (pcmd);
1370 memset(fp, 0, sizeof (FARP));
1371 lp = (uint32_t *) pcmd;
1372 *lp++ = be32_to_cpu(nportid);
1373 *lp++ = be32_to_cpu(phba->fc_myDID);
1375 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
1377 memcpy(&fp->RportName, &phba->fc_portname, sizeof (struct lpfc_name));
1378 memcpy(&fp->RnodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
1379 if ((ondlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, nportid))) {
1380 memcpy(&fp->OportName, &ondlp->nlp_portname,
1381 sizeof (struct lpfc_name));
1382 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
1383 sizeof (struct lpfc_name));
1386 phba->fc_stat.elsXmitFARPR++;
1387 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
1388 spin_lock_irq(phba->host->host_lock);
1389 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
1390 spin_unlock_irq(phba->host->host_lock);
1391 mempool_free( ndlp, phba->nlp_mem_pool);
1392 lpfc_els_free_iocb(phba, elsiocb);
1395 spin_unlock_irq(phba->host->host_lock);
1396 mempool_free( ndlp, phba->nlp_mem_pool);
1401 lpfc_els_retry_delay(unsigned long ptr)
1403 struct lpfc_nodelist *ndlp;
1404 struct lpfc_hba *phba;
1405 unsigned long iflag;
1406 struct lpfc_work_evt *evtp;
1408 ndlp = (struct lpfc_nodelist *)ptr;
1409 phba = ndlp->nlp_phba;
1410 evtp = &ndlp->els_retry_evt;
1412 spin_lock_irqsave(phba->host->host_lock, iflag);
1413 if (!list_empty(&evtp->evt_listp)) {
1414 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1418 evtp->evt_arg1 = ndlp;
1419 evtp->evt = LPFC_EVT_ELS_RETRY;
1420 list_add_tail(&evtp->evt_listp, &phba->work_list);
1421 if (phba->work_wait)
1422 wake_up(phba->work_wait);
1424 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1429 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
1431 struct lpfc_hba *phba;
1436 phba = ndlp->nlp_phba;
1437 spin_lock_irq(phba->host->host_lock);
1438 did = (uint32_t) (ndlp->nlp_DID);
1439 cmd = (uint32_t) (ndlp->nlp_last_elscmd);
1441 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1442 spin_unlock_irq(phba->host->host_lock);
1446 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1447 spin_unlock_irq(phba->host->host_lock);
1448 retry = ndlp->nlp_retry;
1452 lpfc_issue_els_flogi(phba, ndlp, retry);
1455 if (!lpfc_issue_els_plogi(phba, ndlp, retry)) {
1456 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1457 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1461 if (!lpfc_issue_els_adisc(phba, ndlp, retry)) {
1462 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1463 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1467 if (!lpfc_issue_els_prli(phba, ndlp, retry)) {
1468 ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1469 lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1473 if (!lpfc_issue_els_logo(phba, ndlp, retry)) {
1474 ndlp->nlp_state = NLP_STE_NPR_NODE;
1475 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1483 lpfc_els_retry(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1484 struct lpfc_iocbq * rspiocb)
1487 struct lpfc_dmabuf *pcmd;
1488 struct lpfc_nodelist *ndlp;
1491 int retry, maxretry;
1497 maxretry = lpfc_max_els_tries;
1498 irsp = &rspiocb->iocb;
1499 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1500 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1502 /* Note: context2 may be 0 for internal driver abort
1503 * of delays ELS command.
1506 if (pcmd && pcmd->virt) {
1507 elscmd = (uint32_t *) (pcmd->virt);
1511 switch (irsp->ulpStatus) {
1512 case IOSTAT_FCP_RSP_ERROR:
1513 case IOSTAT_REMOTE_STOP:
1516 case IOSTAT_LOCAL_REJECT:
1517 switch ((irsp->un.ulpWord[4] & 0xff)) {
1518 case IOERR_LOOP_OPEN_FAILURE:
1519 if (cmd == ELS_CMD_PLOGI) {
1520 if (cmdiocb->retry == 0) {
1527 case IOERR_SEQUENCE_TIMEOUT:
1531 case IOERR_NO_RESOURCES:
1532 if (cmd == ELS_CMD_PLOGI) {
1538 case IOERR_INVALID_RPI:
1544 case IOSTAT_NPORT_RJT:
1545 case IOSTAT_FABRIC_RJT:
1546 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
1552 case IOSTAT_NPORT_BSY:
1553 case IOSTAT_FABRIC_BSY:
1558 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
1559 /* Added for Vendor specifc support
1560 * Just keep retrying for these Rsn / Exp codes
1562 switch (stat.un.b.lsRjtRsnCode) {
1563 case LSRJT_UNABLE_TPC:
1564 if (stat.un.b.lsRjtRsnCodeExp ==
1565 LSEXP_CMD_IN_PROGRESS) {
1566 if (cmd == ELS_CMD_PLOGI) {
1573 if (cmd == ELS_CMD_PLOGI) {
1575 maxretry = lpfc_max_els_tries + 1;
1581 case LSRJT_LOGICAL_BSY:
1582 if (cmd == ELS_CMD_PLOGI) {
1591 case IOSTAT_INTERMED_RSP:
1599 if (ndlp->nlp_DID == FDMI_DID) {
1603 if ((++cmdiocb->retry) >= maxretry) {
1604 phba->fc_stat.elsRetryExceeded++;
1610 /* Retry ELS command <elsCmd> to remote NPORT <did> */
1611 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1612 "%d:0107 Retry ELS command x%x to remote "
1613 "NPORT x%x Data: x%x x%x\n",
1615 cmd, ndlp->nlp_DID, cmdiocb->retry, delay);
1617 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) {
1618 /* If discovery / RSCN timer is running, reset it */
1619 if (timer_pending(&phba->fc_disctmo) ||
1620 (phba->fc_flag & FC_RSCN_MODE)) {
1621 lpfc_set_disctmo(phba);
1625 phba->fc_stat.elsXmitRetry++;
1627 phba->fc_stat.elsDelayRetry++;
1628 ndlp->nlp_retry = cmdiocb->retry;
1630 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
1631 ndlp->nlp_flag |= NLP_DELAY_TMO;
1633 ndlp->nlp_state = NLP_STE_NPR_NODE;
1634 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1635 ndlp->nlp_last_elscmd = cmd;
1641 lpfc_issue_els_flogi(phba, ndlp, cmdiocb->retry);
1644 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1645 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1646 lpfc_issue_els_plogi(phba, ndlp, cmdiocb->retry);
1649 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1650 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1651 lpfc_issue_els_adisc(phba, ndlp, cmdiocb->retry);
1654 ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1655 lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1656 lpfc_issue_els_prli(phba, ndlp, cmdiocb->retry);
1659 ndlp->nlp_state = NLP_STE_NPR_NODE;
1660 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1661 lpfc_issue_els_logo(phba, ndlp, cmdiocb->retry);
1666 /* No retry ELS command <elsCmd> to remote NPORT <did> */
1667 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1668 "%d:0108 No retry ELS command x%x to remote NPORT x%x "
1671 cmd, ndlp->nlp_DID, cmdiocb->retry, ndlp->nlp_flag);
1677 lpfc_els_free_iocb(struct lpfc_hba * phba, struct lpfc_iocbq * elsiocb)
1679 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
1681 /* context2 = cmd, context2->next = rsp, context3 = bpl */
1682 if (elsiocb->context2) {
1683 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
1684 /* Free the response before processing the command. */
1685 if (!list_empty(&buf_ptr1->list)) {
1686 list_remove_head(&buf_ptr1->list, buf_ptr,
1689 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1692 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
1696 if (elsiocb->context3) {
1697 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
1698 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1701 spin_lock_irq(phba->host->host_lock);
1702 lpfc_sli_release_iocbq(phba, elsiocb);
1703 spin_unlock_irq(phba->host->host_lock);
1708 lpfc_cmpl_els_logo_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1709 struct lpfc_iocbq * rspiocb)
1711 struct lpfc_nodelist *ndlp;
1713 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1715 /* ACC to LOGO completes to NPort <nlp_DID> */
1716 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1717 "%d:0109 ACC to LOGO completes to NPort x%x "
1718 "Data: x%x x%x x%x\n",
1719 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
1720 ndlp->nlp_state, ndlp->nlp_rpi);
1722 spin_lock_irq(phba->host->host_lock);
1723 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
1724 spin_unlock_irq(phba->host->host_lock);
1726 switch (ndlp->nlp_state) {
1727 case NLP_STE_UNUSED_NODE: /* node is just allocated */
1728 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1730 case NLP_STE_NPR_NODE: /* NPort Recovery mode */
1731 lpfc_unreg_rpi(phba, ndlp);
1736 lpfc_els_free_iocb(phba, cmdiocb);
1741 lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
1742 struct lpfc_iocbq * rspiocb)
1744 struct lpfc_nodelist *ndlp;
1745 LPFC_MBOXQ_t *mbox = NULL;
1747 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
1748 if (cmdiocb->context_un.mbox)
1749 mbox = cmdiocb->context_un.mbox;
1752 /* Check to see if link went down during discovery */
1753 if ((lpfc_els_chk_latt(phba)) || !ndlp) {
1755 mempool_free( mbox, phba->mbox_mem_pool);
1760 /* ELS response tag <ulpIoTag> completes */
1761 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1762 "%d:0110 ELS response tag x%x completes "
1763 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
1765 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
1766 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
1767 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
1771 if ((rspiocb->iocb.ulpStatus == 0)
1772 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
1773 /* set_slim mailbox command needs to execute first,
1774 * queue this command to be processed later.
1776 lpfc_unreg_rpi(phba, ndlp);
1777 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
1778 mbox->context2 = ndlp;
1779 ndlp->nlp_state = NLP_STE_REG_LOGIN_ISSUE;
1780 lpfc_nlp_list(phba, ndlp, NLP_REGLOGIN_LIST);
1781 if (lpfc_sli_issue_mbox(phba, mbox,
1782 (MBX_NOWAIT | MBX_STOP_IOCB))
1783 != MBX_NOT_FINISHED) {
1786 /* NOTE: we should have messages for unsuccessful
1788 mempool_free( mbox, phba->mbox_mem_pool);
1790 mempool_free( mbox, phba->mbox_mem_pool);
1791 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
1792 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1798 spin_lock_irq(phba->host->host_lock);
1799 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
1800 spin_unlock_irq(phba->host->host_lock);
1802 lpfc_els_free_iocb(phba, cmdiocb);
1807 lpfc_els_rsp_acc(struct lpfc_hba * phba, uint32_t flag,
1808 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp,
1809 LPFC_MBOXQ_t * mbox, uint8_t newnode)
1813 struct lpfc_iocbq *elsiocb;
1814 struct lpfc_sli_ring *pring;
1815 struct lpfc_sli *psli;
1821 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1822 oldcmd = &oldiocb->iocb;
1826 cmdsize = sizeof (uint32_t);
1828 lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
1829 ndlp, ELS_CMD_ACC)) == 0) {
1832 icmd = &elsiocb->iocb;
1833 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
1834 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1835 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
1836 pcmd += sizeof (uint32_t);
1839 cmdsize = (sizeof (struct serv_parm) + sizeof (uint32_t));
1841 lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
1842 ndlp, ELS_CMD_ACC)) == 0) {
1845 icmd = &elsiocb->iocb;
1846 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
1847 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1850 elsiocb->context_un.mbox = mbox;
1852 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
1853 pcmd += sizeof (uint32_t);
1854 memcpy(pcmd, &phba->fc_sparam, sizeof (struct serv_parm));
1861 elsiocb->context1 = NULL;
1863 /* Xmit ELS ACC response tag <ulpIoTag> */
1864 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1865 "%d:0128 Xmit ELS ACC response tag x%x "
1866 "Data: x%x x%x x%x x%x x%x\n",
1868 elsiocb->iocb.ulpIoTag,
1869 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
1870 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
1872 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
1873 spin_lock_irq(phba->host->host_lock);
1874 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
1875 spin_unlock_irq(phba->host->host_lock);
1876 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
1878 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
1881 phba->fc_stat.elsXmitACC++;
1882 spin_lock_irq(phba->host->host_lock);
1883 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
1884 spin_unlock_irq(phba->host->host_lock);
1885 if (rc == IOCB_ERROR) {
1886 lpfc_els_free_iocb(phba, elsiocb);
1893 lpfc_els_rsp_reject(struct lpfc_hba * phba, uint32_t rejectError,
1894 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
1898 struct lpfc_iocbq *elsiocb;
1899 struct lpfc_sli_ring *pring;
1900 struct lpfc_sli *psli;
1906 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1908 cmdsize = 2 * sizeof (uint32_t);
1909 if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
1910 ndlp, ELS_CMD_LS_RJT)) == 0) {
1914 icmd = &elsiocb->iocb;
1915 oldcmd = &oldiocb->iocb;
1916 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
1917 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1919 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
1920 pcmd += sizeof (uint32_t);
1921 *((uint32_t *) (pcmd)) = rejectError;
1923 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
1924 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1925 "%d:0129 Xmit ELS RJT x%x response tag x%x "
1926 "Data: x%x x%x x%x x%x x%x\n",
1928 rejectError, elsiocb->iocb.ulpIoTag,
1929 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
1930 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
1932 phba->fc_stat.elsXmitLSRJT++;
1933 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
1934 spin_lock_irq(phba->host->host_lock);
1935 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
1936 spin_unlock_irq(phba->host->host_lock);
1937 if (rc == IOCB_ERROR) {
1938 lpfc_els_free_iocb(phba, elsiocb);
1945 lpfc_els_rsp_adisc_acc(struct lpfc_hba * phba,
1946 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
1951 struct lpfc_iocbq *elsiocb;
1952 struct lpfc_sli_ring *pring;
1953 struct lpfc_sli *psli;
1959 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
1961 cmdsize = sizeof (uint32_t) + sizeof (ADISC);
1962 if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
1963 ndlp, ELS_CMD_ACC)) == 0) {
1967 /* Xmit ADISC ACC response tag <ulpIoTag> */
1968 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1969 "%d:0130 Xmit ADISC ACC response tag x%x "
1970 "Data: x%x x%x x%x x%x x%x\n",
1972 elsiocb->iocb.ulpIoTag,
1973 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
1974 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
1976 icmd = &elsiocb->iocb;
1977 oldcmd = &oldiocb->iocb;
1978 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
1979 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1981 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
1982 pcmd += sizeof (uint32_t);
1984 ap = (ADISC *) (pcmd);
1985 ap->hardAL_PA = phba->fc_pref_ALPA;
1986 memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name));
1987 memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
1988 ap->DID = be32_to_cpu(phba->fc_myDID);
1990 phba->fc_stat.elsXmitACC++;
1991 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
1992 spin_lock_irq(phba->host->host_lock);
1993 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
1994 spin_unlock_irq(phba->host->host_lock);
1995 if (rc == IOCB_ERROR) {
1996 lpfc_els_free_iocb(phba, elsiocb);
2003 lpfc_els_rsp_prli_acc(struct lpfc_hba * phba,
2004 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2010 struct lpfc_iocbq *elsiocb;
2011 struct lpfc_sli_ring *pring;
2012 struct lpfc_sli *psli;
2018 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
2020 cmdsize = sizeof (uint32_t) + sizeof (PRLI);
2021 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, ndlp,
2022 (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
2026 /* Xmit PRLI ACC response tag <ulpIoTag> */
2027 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2028 "%d:0131 Xmit PRLI ACC response tag x%x "
2029 "Data: x%x x%x x%x x%x x%x\n",
2031 elsiocb->iocb.ulpIoTag,
2032 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2033 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2035 icmd = &elsiocb->iocb;
2036 oldcmd = &oldiocb->iocb;
2037 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2038 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2040 *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
2041 pcmd += sizeof (uint32_t);
2043 /* For PRLI, remainder of payload is PRLI parameter page */
2044 memset(pcmd, 0, sizeof (PRLI));
2046 npr = (PRLI *) pcmd;
2049 * If our firmware version is 3.20 or later,
2050 * set the following bits for FC-TAPE support.
2052 if (vpd->rev.feaLevelHigh >= 0x02) {
2053 npr->ConfmComplAllowed = 1;
2055 npr->TaskRetryIdReq = 1;
2058 npr->acceptRspCode = PRLI_REQ_EXECUTED;
2059 npr->estabImagePair = 1;
2060 npr->readXferRdyDis = 1;
2061 npr->ConfmComplAllowed = 1;
2063 npr->prliType = PRLI_FCP_TYPE;
2064 npr->initiatorFunc = 1;
2066 phba->fc_stat.elsXmitACC++;
2067 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2069 spin_lock_irq(phba->host->host_lock);
2070 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2071 spin_unlock_irq(phba->host->host_lock);
2072 if (rc == IOCB_ERROR) {
2073 lpfc_els_free_iocb(phba, elsiocb);
2080 lpfc_els_rsp_rnid_acc(struct lpfc_hba * phba,
2082 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2087 struct lpfc_iocbq *elsiocb;
2088 struct lpfc_sli_ring *pring;
2089 struct lpfc_sli *psli;
2095 pring = &psli->ring[LPFC_ELS_RING];
2097 cmdsize = sizeof (uint32_t) + sizeof (uint32_t)
2098 + (2 * sizeof (struct lpfc_name));
2100 cmdsize += sizeof (RNID_TOP_DISC);
2102 if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2103 ndlp, ELS_CMD_ACC)) == 0) {
2107 /* Xmit RNID ACC response tag <ulpIoTag> */
2108 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2109 "%d:0132 Xmit RNID ACC response tag x%x "
2112 elsiocb->iocb.ulpIoTag,
2113 elsiocb->iocb.ulpContext);
2115 icmd = &elsiocb->iocb;
2116 oldcmd = &oldiocb->iocb;
2117 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2118 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2120 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2121 pcmd += sizeof (uint32_t);
2123 memset(pcmd, 0, sizeof (RNID));
2124 rn = (RNID *) (pcmd);
2125 rn->Format = format;
2126 rn->CommonLen = (2 * sizeof (struct lpfc_name));
2127 memcpy(&rn->portName, &phba->fc_portname, sizeof (struct lpfc_name));
2128 memcpy(&rn->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name));
2131 rn->SpecificLen = 0;
2133 case RNID_TOPOLOGY_DISC:
2134 rn->SpecificLen = sizeof (RNID_TOP_DISC);
2135 memcpy(&rn->un.topologyDisc.portName,
2136 &phba->fc_portname, sizeof (struct lpfc_name));
2137 rn->un.topologyDisc.unitType = RNID_HBA;
2138 rn->un.topologyDisc.physPort = 0;
2139 rn->un.topologyDisc.attachedNodes = 0;
2143 rn->SpecificLen = 0;
2147 phba->fc_stat.elsXmitACC++;
2148 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2149 elsiocb->context1 = NULL; /* Don't need ndlp for cmpl,
2150 * it could be freed */
2152 spin_lock_irq(phba->host->host_lock);
2153 rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0);
2154 spin_unlock_irq(phba->host->host_lock);
2155 if (rc == IOCB_ERROR) {
2156 lpfc_els_free_iocb(phba, elsiocb);
2163 lpfc_els_disc_adisc(struct lpfc_hba * phba)
2166 struct lpfc_nodelist *ndlp, *next_ndlp;
2169 /* go thru NPR list and issue any remaining ELS ADISCs */
2170 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2172 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2173 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2174 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2175 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
2176 lpfc_nlp_list(phba, ndlp,
2178 lpfc_issue_els_adisc(phba, ndlp, 0);
2180 phba->num_disc_nodes++;
2181 if (phba->num_disc_nodes >=
2182 phba->cfg_discovery_threads) {
2183 spin_lock_irq(phba->host->host_lock);
2184 phba->fc_flag |= FC_NLP_MORE;
2185 spin_unlock_irq(phba->host->host_lock);
2191 if (sentadisc == 0) {
2192 spin_lock_irq(phba->host->host_lock);
2193 phba->fc_flag &= ~FC_NLP_MORE;
2194 spin_unlock_irq(phba->host->host_lock);
2200 lpfc_els_disc_plogi(struct lpfc_hba * phba)
2203 struct lpfc_nodelist *ndlp, *next_ndlp;
2206 /* go thru NPR list and issue any remaining ELS PLOGIs */
2207 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
2209 if ((ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
2210 (!(ndlp->nlp_flag & NLP_DELAY_TMO))) {
2211 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2212 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
2213 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
2214 lpfc_issue_els_plogi(phba, ndlp, 0);
2216 phba->num_disc_nodes++;
2217 if (phba->num_disc_nodes >=
2218 phba->cfg_discovery_threads) {
2219 spin_lock_irq(phba->host->host_lock);
2220 phba->fc_flag |= FC_NLP_MORE;
2221 spin_unlock_irq(phba->host->host_lock);
2227 if (sentplogi == 0) {
2228 spin_lock_irq(phba->host->host_lock);
2229 phba->fc_flag &= ~FC_NLP_MORE;
2230 spin_unlock_irq(phba->host->host_lock);
2236 lpfc_els_flush_rscn(struct lpfc_hba * phba)
2238 struct lpfc_dmabuf *mp;
2241 for (i = 0; i < phba->fc_rscn_id_cnt; i++) {
2242 mp = phba->fc_rscn_id_list[i];
2243 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2245 phba->fc_rscn_id_list[i] = NULL;
2247 phba->fc_rscn_id_cnt = 0;
2248 spin_lock_irq(phba->host->host_lock);
2249 phba->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
2250 spin_unlock_irq(phba->host->host_lock);
2251 lpfc_can_disctmo(phba);
2256 lpfc_rscn_payload_check(struct lpfc_hba * phba, uint32_t did)
2260 struct lpfc_dmabuf *mp;
2262 uint32_t payload_len, cmd, i, match;
2264 ns_did.un.word = did;
2267 /* Never match fabric nodes for RSCNs */
2268 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
2271 /* If we are doing a FULL RSCN rediscovery, match everything */
2272 if (phba->fc_flag & FC_RSCN_DISCOVERY) {
2276 for (i = 0; i < phba->fc_rscn_id_cnt; i++) {
2277 mp = phba->fc_rscn_id_list[i];
2278 lp = (uint32_t *) mp->virt;
2280 payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */
2281 payload_len -= sizeof (uint32_t); /* take off word 0 */
2282 while (payload_len) {
2283 rscn_did.un.word = *lp++;
2284 rscn_did.un.word = be32_to_cpu(rscn_did.un.word);
2285 payload_len -= sizeof (uint32_t);
2286 switch (rscn_did.un.b.resv) {
2287 case 0: /* Single N_Port ID effected */
2288 if (ns_did.un.word == rscn_did.un.word) {
2292 case 1: /* Whole N_Port Area effected */
2293 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
2294 && (ns_did.un.b.area == rscn_did.un.b.area))
2299 case 2: /* Whole N_Port Domain effected */
2300 if (ns_did.un.b.domain == rscn_did.un.b.domain)
2305 case 3: /* Whole Fabric effected */
2309 /* Unknown Identifier in RSCN list */
2310 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2311 "%d:0217 Unknown Identifier in "
2312 "RSCN payload Data: x%x\n",
2313 phba->brd_no, rscn_did.un.word);
2325 lpfc_rscn_recovery_check(struct lpfc_hba * phba)
2327 struct lpfc_nodelist *ndlp = NULL, *next_ndlp;
2328 struct list_head *listp;
2329 struct list_head *node_list[7];
2332 /* Look at all nodes effected by pending RSCNs and move
2335 node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
2336 node_list[1] = &phba->fc_nlpmap_list;
2337 node_list[2] = &phba->fc_nlpunmap_list;
2338 node_list[3] = &phba->fc_prli_list;
2339 node_list[4] = &phba->fc_reglogin_list;
2340 node_list[5] = &phba->fc_adisc_list;
2341 node_list[6] = &phba->fc_plogi_list;
2342 for (i = 0; i < 7; i++) {
2343 listp = node_list[i];
2344 if (list_empty(listp))
2347 list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
2348 if (!(lpfc_rscn_payload_check(phba, ndlp->nlp_DID)))
2351 lpfc_disc_state_machine(phba, ndlp, NULL,
2352 NLP_EVT_DEVICE_RECOVERY);
2353 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
2354 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2355 del_timer_sync(&ndlp->nlp_delayfunc);
2356 if (!list_empty(&ndlp->
2357 els_retry_evt.evt_listp))
2358 list_del_init(&ndlp->
2359 els_retry_evt.evt_listp);
2367 lpfc_els_rcv_rscn(struct lpfc_hba * phba,
2368 struct lpfc_iocbq * cmdiocb,
2369 struct lpfc_nodelist * ndlp, uint8_t newnode)
2371 struct lpfc_dmabuf *pcmd;
2374 uint32_t payload_len, cmd;
2376 icmd = &cmdiocb->iocb;
2377 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2378 lp = (uint32_t *) pcmd->virt;
2381 payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */
2382 payload_len -= sizeof (uint32_t); /* take off word 0 */
2383 cmd &= ELS_CMD_MASK;
2386 lpfc_printf_log(phba,
2389 "%d:0214 RSCN received Data: x%x x%x x%x x%x\n",
2391 phba->fc_flag, payload_len, *lp, phba->fc_rscn_id_cnt);
2393 /* If we are about to begin discovery, just ACC the RSCN.
2394 * Discovery processing will satisfy it.
2396 if (phba->hba_state < LPFC_NS_QRY) {
2397 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
2402 /* If we are already processing an RSCN, save the received
2403 * RSCN payload buffer, cmdiocb->context2 to process later.
2405 if (phba->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
2406 if ((phba->fc_rscn_id_cnt < FC_MAX_HOLD_RSCN) &&
2407 !(phba->fc_flag & FC_RSCN_DISCOVERY)) {
2408 spin_lock_irq(phba->host->host_lock);
2409 phba->fc_flag |= FC_RSCN_MODE;
2410 spin_unlock_irq(phba->host->host_lock);
2411 phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd;
2413 /* If we zero, cmdiocb->context2, the calling
2414 * routine will not try to free it.
2416 cmdiocb->context2 = NULL;
2419 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2420 "%d:0235 Deferred RSCN "
2421 "Data: x%x x%x x%x\n",
2422 phba->brd_no, phba->fc_rscn_id_cnt,
2423 phba->fc_flag, phba->hba_state);
2425 spin_lock_irq(phba->host->host_lock);
2426 phba->fc_flag |= FC_RSCN_DISCOVERY;
2427 spin_unlock_irq(phba->host->host_lock);
2428 /* ReDiscovery RSCN */
2429 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2430 "%d:0234 ReDiscovery RSCN "
2431 "Data: x%x x%x x%x\n",
2432 phba->brd_no, phba->fc_rscn_id_cnt,
2433 phba->fc_flag, phba->hba_state);
2436 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL,
2439 /* send RECOVERY event for ALL nodes that match RSCN payload */
2440 lpfc_rscn_recovery_check(phba);
2444 phba->fc_flag |= FC_RSCN_MODE;
2445 phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd;
2447 * If we zero, cmdiocb->context2, the calling routine will
2448 * not try to free it.
2450 cmdiocb->context2 = NULL;
2452 lpfc_set_disctmo(phba);
2455 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode);
2457 /* send RECOVERY event for ALL nodes that match RSCN payload */
2458 lpfc_rscn_recovery_check(phba);
2460 return lpfc_els_handle_rscn(phba);
2464 lpfc_els_handle_rscn(struct lpfc_hba * phba)
2466 struct lpfc_nodelist *ndlp;
2468 /* Start timer for RSCN processing */
2469 lpfc_set_disctmo(phba);
2471 /* RSCN processed */
2472 lpfc_printf_log(phba,
2475 "%d:0215 RSCN processed Data: x%x x%x x%x x%x\n",
2477 phba->fc_flag, 0, phba->fc_rscn_id_cnt,
2480 /* To process RSCN, first compare RSCN data with NameServer */
2481 phba->fc_ns_retry = 0;
2482 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, NameServer_DID);
2484 /* Good ndlp, issue CT Request to NameServer */
2485 if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT) == 0) {
2486 /* Wait for NameServer query cmpl before we can
2491 /* If login to NameServer does not exist, issue one */
2492 /* Good status, issue PLOGI to NameServer */
2493 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
2495 /* Wait for NameServer login cmpl before we can
2499 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2501 lpfc_els_flush_rscn(phba);
2504 lpfc_nlp_init(phba, ndlp, NameServer_DID);
2505 ndlp->nlp_type |= NLP_FABRIC;
2506 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
2507 lpfc_issue_els_plogi(phba, ndlp, 0);
2508 /* Wait for NameServer login cmpl before we can
2514 lpfc_els_flush_rscn(phba);
2519 lpfc_els_rcv_flogi(struct lpfc_hba * phba,
2520 struct lpfc_iocbq * cmdiocb,
2521 struct lpfc_nodelist * ndlp, uint8_t newnode)
2523 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2524 uint32_t *lp = (uint32_t *) pcmd->virt;
2525 IOCB_t *icmd = &cmdiocb->iocb;
2526 struct serv_parm *sp;
2533 sp = (struct serv_parm *) lp;
2535 /* FLOGI received */
2537 lpfc_set_disctmo(phba);
2539 if (phba->fc_topology == TOPOLOGY_LOOP) {
2540 /* We should never receive a FLOGI in loop mode, ignore it */
2541 did = icmd->un.elsreq64.remoteID;
2543 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
2545 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
2546 "%d:0113 An FLOGI ELS command x%x was received "
2547 "from DID x%x in Loop Mode\n",
2548 phba->brd_no, cmd, did);
2554 if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3))) {
2555 /* For a FLOGI we accept, then if our portname is greater
2556 * then the remote portname we initiate Nport login.
2559 rc = memcmp(&phba->fc_portname, &sp->portName,
2560 sizeof (struct lpfc_name));
2563 if ((mbox = mempool_alloc(phba->mbox_mem_pool,
2564 GFP_KERNEL)) == 0) {
2567 lpfc_linkdown(phba);
2568 lpfc_init_link(phba, mbox,
2570 phba->cfg_link_speed);
2571 mbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2572 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2573 rc = lpfc_sli_issue_mbox
2574 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
2575 if (rc == MBX_NOT_FINISHED) {
2576 mempool_free( mbox, phba->mbox_mem_pool);
2580 else if (rc > 0) { /* greater than */
2581 spin_lock_irq(phba->host->host_lock);
2582 phba->fc_flag |= FC_PT2PT_PLOGI;
2583 spin_unlock_irq(phba->host->host_lock);
2585 phba->fc_flag |= FC_PT2PT;
2586 phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2588 /* Reject this request because invalid parameters */
2589 stat.un.b.lsRjtRsvd0 = 0;
2590 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2591 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
2592 stat.un.b.vendorUnique = 0;
2593 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2598 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, newnode);
2604 lpfc_els_rcv_rnid(struct lpfc_hba * phba,
2605 struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
2607 struct lpfc_dmabuf *pcmd;
2614 icmd = &cmdiocb->iocb;
2615 did = icmd->un.elsreq64.remoteID;
2616 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2617 lp = (uint32_t *) pcmd->virt;
2624 switch (rn->Format) {
2626 case RNID_TOPOLOGY_DISC:
2628 lpfc_els_rsp_rnid_acc(phba, rn->Format, cmdiocb, ndlp);
2631 /* Reject this request because format not supported */
2632 stat.un.b.lsRjtRsvd0 = 0;
2633 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2634 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2635 stat.un.b.vendorUnique = 0;
2636 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2642 lpfc_els_rcv_lirr(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2643 struct lpfc_nodelist * ndlp)
2647 /* For now, unconditionally reject this command */
2648 stat.un.b.lsRjtRsvd0 = 0;
2649 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2650 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2651 stat.un.b.vendorUnique = 0;
2652 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2657 lpfc_els_rsp_rps_acc(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
2659 struct lpfc_sli *psli;
2660 struct lpfc_sli_ring *pring;
2665 struct lpfc_iocbq *elsiocb;
2666 struct lpfc_nodelist *ndlp;
2667 uint16_t xri, status;
2671 pring = &psli->ring[LPFC_ELS_RING];
2674 ndlp = (struct lpfc_nodelist *) pmb->context2;
2675 xri = (uint16_t) ((unsigned long)(pmb->context1));
2679 if (mb->mbxStatus) {
2680 mempool_free( pmb, phba->mbox_mem_pool);
2684 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
2685 mempool_free( pmb, phba->mbox_mem_pool);
2686 elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, lpfc_max_els_tries,
2691 icmd = &elsiocb->iocb;
2692 icmd->ulpContext = xri;
2694 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2695 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2696 pcmd += sizeof (uint32_t); /* Skip past command */
2697 rps_rsp = (RPS_RSP *)pcmd;
2699 if (phba->fc_topology != TOPOLOGY_LOOP)
2703 if (phba->fc_flag & FC_FABRIC)
2707 rps_rsp->portStatus = be16_to_cpu(status);
2708 rps_rsp->linkFailureCnt = be32_to_cpu(mb->un.varRdLnk.linkFailureCnt);
2709 rps_rsp->lossSyncCnt = be32_to_cpu(mb->un.varRdLnk.lossSyncCnt);
2710 rps_rsp->lossSignalCnt = be32_to_cpu(mb->un.varRdLnk.lossSignalCnt);
2711 rps_rsp->primSeqErrCnt = be32_to_cpu(mb->un.varRdLnk.primSeqErrCnt);
2712 rps_rsp->invalidXmitWord = be32_to_cpu(mb->un.varRdLnk.invalidXmitWord);
2713 rps_rsp->crcCnt = be32_to_cpu(mb->un.varRdLnk.crcCnt);
2715 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
2716 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2717 "%d:0128 Xmit ELS RPS ACC response tag x%x "
2718 "Data: x%x x%x x%x x%x x%x\n",
2720 elsiocb->iocb.ulpIoTag,
2721 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2722 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2724 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2725 phba->fc_stat.elsXmitACC++;
2726 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
2727 lpfc_els_free_iocb(phba, elsiocb);
2733 lpfc_els_rcv_rps(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2734 struct lpfc_nodelist * ndlp)
2739 struct lpfc_dmabuf *pcmd;
2743 if((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2744 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
2745 stat.un.b.lsRjtRsvd0 = 0;
2746 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2747 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2748 stat.un.b.vendorUnique = 0;
2749 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2752 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2753 lp = (uint32_t *) pcmd->virt;
2754 flag = (be32_to_cpu(*lp++) & 0xf);
2758 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
2759 ((flag == 2) && (memcmp(&rps->un.portName, &phba->fc_portname,
2760 sizeof (struct lpfc_name)) == 0))) {
2761 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC))) {
2762 lpfc_read_lnk_stat(phba, mbox);
2764 (void *)((unsigned long)cmdiocb->iocb.ulpContext);
2765 mbox->context2 = ndlp;
2766 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
2767 if (lpfc_sli_issue_mbox (phba, mbox,
2768 (MBX_NOWAIT | MBX_STOP_IOCB)) != MBX_NOT_FINISHED) {
2769 /* Mbox completion will send ELS Response */
2772 mempool_free(mbox, phba->mbox_mem_pool);
2775 stat.un.b.lsRjtRsvd0 = 0;
2776 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2777 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2778 stat.un.b.vendorUnique = 0;
2779 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2784 lpfc_els_rsp_rpl_acc(struct lpfc_hba * phba, uint16_t cmdsize,
2785 struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
2790 struct lpfc_iocbq *elsiocb;
2791 struct lpfc_sli_ring *pring;
2792 struct lpfc_sli *psli;
2796 pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
2799 lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
2800 ndlp, ELS_CMD_ACC)) == 0) {
2803 icmd = &elsiocb->iocb;
2804 oldcmd = &oldiocb->iocb;
2805 icmd->ulpContext = oldcmd->ulpContext; /* Xri */
2807 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2808 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
2809 pcmd += sizeof (uint16_t);
2810 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
2811 pcmd += sizeof(uint16_t);
2813 /* Setup the RPL ACC payload */
2814 rpl_rsp.listLen = be32_to_cpu(1);
2816 rpl_rsp.port_num_blk.portNum = 0;
2817 rpl_rsp.port_num_blk.portID = be32_to_cpu(phba->fc_myDID);
2818 memcpy(&rpl_rsp.port_num_blk.portName, &phba->fc_portname,
2819 sizeof(struct lpfc_name));
2821 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
2824 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
2825 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
2826 "%d:0128 Xmit ELS RPL ACC response tag x%x "
2827 "Data: x%x x%x x%x x%x x%x\n",
2829 elsiocb->iocb.ulpIoTag,
2830 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
2831 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
2833 elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
2835 phba->fc_stat.elsXmitACC++;
2836 if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
2837 lpfc_els_free_iocb(phba, elsiocb);
2844 lpfc_els_rcv_rpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2845 struct lpfc_nodelist * ndlp)
2847 struct lpfc_dmabuf *pcmd;
2854 if((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
2855 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
2856 stat.un.b.lsRjtRsvd0 = 0;
2857 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2858 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
2859 stat.un.b.vendorUnique = 0;
2860 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2863 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2864 lp = (uint32_t *) pcmd->virt;
2865 rpl = (RPL *) (lp + 1);
2867 maxsize = be32_to_cpu(rpl->maxsize);
2869 /* We support only one port */
2870 if ((rpl->index == 0) &&
2872 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
2873 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
2876 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
2878 lpfc_els_rsp_rpl_acc(phba, cmdsize, cmdiocb, ndlp);
2884 lpfc_els_rcv_farp(struct lpfc_hba * phba,
2885 struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
2887 struct lpfc_dmabuf *pcmd;
2891 uint32_t cmd, cnt, did;
2893 icmd = &cmdiocb->iocb;
2894 did = icmd->un.elsreq64.remoteID;
2895 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2896 lp = (uint32_t *) pcmd->virt;
2901 /* FARP-REQ received from DID <did> */
2902 lpfc_printf_log(phba,
2905 "%d:0601 FARP-REQ received from DID x%x\n",
2908 /* We will only support match on WWPN or WWNN */
2909 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
2914 /* If this FARP command is searching for my portname */
2915 if (fp->Mflags & FARP_MATCH_PORT) {
2916 if (memcmp(&fp->RportName, &phba->fc_portname,
2917 sizeof (struct lpfc_name)) == 0)
2921 /* If this FARP command is searching for my nodename */
2922 if (fp->Mflags & FARP_MATCH_NODE) {
2923 if (memcmp(&fp->RnodeName, &phba->fc_nodename,
2924 sizeof (struct lpfc_name)) == 0)
2929 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
2930 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
2931 /* Log back into the node before sending the FARP. */
2932 if (fp->Rflags & FARP_REQUEST_PLOGI) {
2933 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
2934 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
2935 lpfc_issue_els_plogi(phba, ndlp, 0);
2938 /* Send a FARP response to that node */
2939 if (fp->Rflags & FARP_REQUEST_FARPR) {
2940 lpfc_issue_els_farpr(phba, did, 0);
2948 lpfc_els_rcv_farpr(struct lpfc_hba * phba,
2949 struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp)
2951 struct lpfc_dmabuf *pcmd;
2956 icmd = &cmdiocb->iocb;
2957 did = icmd->un.elsreq64.remoteID;
2958 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2959 lp = (uint32_t *) pcmd->virt;
2962 /* FARP-RSP received from DID <did> */
2963 lpfc_printf_log(phba,
2966 "%d:0600 FARP-RSP received from DID x%x\n",
2969 /* ACCEPT the Farp resp request */
2970 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
2976 lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2977 struct lpfc_nodelist * ndlp)
2979 struct lpfc_dmabuf *pcmd;
2985 icmd = &cmdiocb->iocb;
2986 did = icmd->un.elsreq64.remoteID;
2987 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
2988 lp = (uint32_t *) pcmd->virt;
2995 /* ACCEPT the FAN request */
2996 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
2998 if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
2999 /* The discovery state machine needs to take a different
3000 * action if this node has switched fabrics
3002 if ((memcmp(&fp->FportName, &phba->fc_fabparam.portName,
3003 sizeof (struct lpfc_name)) != 0)
3005 (memcmp(&fp->FnodeName, &phba->fc_fabparam.nodeName,
3006 sizeof (struct lpfc_name)) != 0)) {
3007 /* This node has switched fabrics. An FLOGI is required
3013 /* Start discovery */
3014 lpfc_disc_start(phba);
3021 lpfc_els_timeout(unsigned long ptr)
3023 struct lpfc_hba *phba;
3024 unsigned long iflag;
3026 phba = (struct lpfc_hba *)ptr;
3029 spin_lock_irqsave(phba->host->host_lock, iflag);
3030 if (!(phba->work_hba_events & WORKER_ELS_TMO)) {
3031 phba->work_hba_events |= WORKER_ELS_TMO;
3032 if (phba->work_wait)
3033 wake_up(phba->work_wait);
3035 spin_unlock_irqrestore(phba->host->host_lock, iflag);
3040 lpfc_els_timeout_handler(struct lpfc_hba *phba)
3042 struct lpfc_sli_ring *pring;
3043 struct lpfc_iocbq *tmp_iocb, *piocb;
3045 struct lpfc_dmabuf *pcmd;
3046 struct list_head *dlp;
3048 uint32_t els_command;
3054 spin_lock_irq(phba->host->host_lock);
3055 /* If the timer is already canceled do nothing */
3056 if (!(phba->work_hba_events & WORKER_ELS_TMO)) {
3057 spin_unlock_irq(phba->host->host_lock);
3060 timeout = (uint32_t)(phba->fc_ratov << 1);
3062 pring = &phba->sli.ring[LPFC_ELS_RING];
3063 dlp = &pring->txcmplq;
3065 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
3068 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3071 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3072 elscmd = (uint32_t *) (pcmd->virt);
3073 els_command = *elscmd;
3075 if ((els_command == ELS_CMD_FARP)
3076 || (els_command == ELS_CMD_FARPR)) {
3080 if (piocb->drvrTimeout > 0) {
3081 if (piocb->drvrTimeout >= timeout) {
3082 piocb->drvrTimeout -= timeout;
3084 piocb->drvrTimeout = 0;
3089 list_del(&piocb->list);
3090 pring->txcmplq_cnt--;
3092 if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) {
3093 struct lpfc_nodelist *ndlp;
3095 ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext);
3096 remote_ID = ndlp->nlp_DID;
3097 if (cmd->un.elsreq64.bdl.ulpIoTag32) {
3098 lpfc_sli_issue_abort_iotag32(phba,
3102 remote_ID = cmd->un.elsreq64.remoteID;
3105 lpfc_printf_log(phba,
3108 "%d:0127 ELS timeout Data: x%x x%x x%x x%x\n",
3109 phba->brd_no, els_command,
3110 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
3113 * The iocb has timed out; abort it.
3115 if (piocb->iocb_cmpl) {
3116 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3117 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3118 spin_unlock_irq(phba->host->host_lock);
3119 (piocb->iocb_cmpl) (phba, piocb, piocb);
3120 spin_lock_irq(phba->host->host_lock);
3122 lpfc_sli_release_iocbq(phba, piocb);
3124 if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) {
3125 phba->els_tmofunc.expires = jiffies + HZ * timeout;
3126 add_timer(&phba->els_tmofunc);
3128 spin_unlock_irq(phba->host->host_lock);
3132 lpfc_els_flush_cmd(struct lpfc_hba * phba)
3134 struct lpfc_sli_ring *pring;
3135 struct lpfc_iocbq *tmp_iocb, *piocb;
3137 struct lpfc_dmabuf *pcmd;
3139 uint32_t els_command;
3141 pring = &phba->sli.ring[LPFC_ELS_RING];
3142 spin_lock_irq(phba->host->host_lock);
3143 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
3146 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3150 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
3151 if ((cmd->ulpCommand == CMD_QUE_RING_BUF_CN) ||
3152 (cmd->ulpCommand == CMD_QUE_RING_BUF64_CN) ||
3153 (cmd->ulpCommand == CMD_CLOSE_XRI_CN) ||
3154 (cmd->ulpCommand == CMD_ABORT_XRI_CN)) {
3158 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3159 elscmd = (uint32_t *) (pcmd->virt);
3160 els_command = *elscmd;
3162 list_del(&piocb->list);
3163 pring->txcmplq_cnt--;
3165 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3166 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3168 if (piocb->iocb_cmpl) {
3169 spin_unlock_irq(phba->host->host_lock);
3170 (piocb->iocb_cmpl) (phba, piocb, piocb);
3171 spin_lock_irq(phba->host->host_lock);
3174 lpfc_sli_release_iocbq(phba, piocb);
3177 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
3180 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
3183 pcmd = (struct lpfc_dmabuf *) piocb->context2;
3184 elscmd = (uint32_t *) (pcmd->virt);
3185 els_command = *elscmd;
3187 list_del(&piocb->list);
3188 pring->txcmplq_cnt--;
3190 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3191 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
3193 if (piocb->iocb_cmpl) {
3194 spin_unlock_irq(phba->host->host_lock);
3195 (piocb->iocb_cmpl) (phba, piocb, piocb);
3196 spin_lock_irq(phba->host->host_lock);
3199 lpfc_sli_release_iocbq(phba, piocb);
3201 spin_unlock_irq(phba->host->host_lock);
3206 lpfc_els_unsol_event(struct lpfc_hba * phba,
3207 struct lpfc_sli_ring * pring, struct lpfc_iocbq * elsiocb)
3209 struct lpfc_sli *psli;
3210 struct lpfc_nodelist *ndlp;
3211 struct lpfc_dmabuf *mp;
3218 uint32_t drop_cmd = 0; /* by default do NOT drop received cmd */
3219 uint32_t rjt_err = 0;
3222 icmd = &elsiocb->iocb;
3224 if ((icmd->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3225 ((icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING)) {
3226 /* Not enough posted buffers; Try posting more buffers */
3227 phba->fc_stat.NoRcvBuf++;
3228 lpfc_post_buffer(phba, pring, 0, 1);
3232 /* If there are no BDEs associated with this IOCB,
3233 * there is nothing to do.
3235 if (icmd->ulpBdeCount == 0)
3238 /* type of ELS cmd is first 32bit word in packet */
3239 mp = lpfc_sli_ringpostbuf_get(phba, pring, getPaddr(icmd->un.
3243 cont64[0].addrLow));
3250 lp = (uint32_t *) mp->virt;
3252 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], 1, 1);
3254 if (icmd->ulpStatus) {
3255 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3261 /* Check to see if link went down during discovery */
3262 if (lpfc_els_chk_latt(phba)) {
3263 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3269 did = icmd->un.rcvels.remoteID;
3270 ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
3272 /* Cannot find existing Fabric ndlp, so allocate a new one */
3273 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3275 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3281 lpfc_nlp_init(phba, ndlp, did);
3283 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) {
3284 ndlp->nlp_type |= NLP_FABRIC;
3288 phba->fc_stat.elsRcvFrame++;
3289 elsiocb->context1 = ndlp;
3290 elsiocb->context2 = mp;
3292 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
3293 cmd &= ELS_CMD_MASK;
3295 /* ELS command <elsCmd> received from NPORT <did> */
3296 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3297 "%d:0112 ELS command x%x received from NPORT x%x "
3298 "Data: x%x\n", phba->brd_no, cmd, did, phba->hba_state);
3302 phba->fc_stat.elsRcvPLOGI++;
3303 if (phba->hba_state < LPFC_DISC_AUTH) {
3307 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PLOGI);
3310 phba->fc_stat.elsRcvFLOGI++;
3311 lpfc_els_rcv_flogi(phba, elsiocb, ndlp, newnode);
3313 mempool_free( ndlp, phba->nlp_mem_pool);
3317 phba->fc_stat.elsRcvLOGO++;
3318 if (phba->hba_state < LPFC_DISC_AUTH) {
3322 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
3325 phba->fc_stat.elsRcvPRLO++;
3326 if (phba->hba_state < LPFC_DISC_AUTH) {
3330 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
3333 phba->fc_stat.elsRcvRSCN++;
3334 lpfc_els_rcv_rscn(phba, elsiocb, ndlp, newnode);
3336 mempool_free( ndlp, phba->nlp_mem_pool);
3340 phba->fc_stat.elsRcvADISC++;
3341 if (phba->hba_state < LPFC_DISC_AUTH) {
3345 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_ADISC);
3348 phba->fc_stat.elsRcvPDISC++;
3349 if (phba->hba_state < LPFC_DISC_AUTH) {
3353 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PDISC);
3356 phba->fc_stat.elsRcvFARPR++;
3357 lpfc_els_rcv_farpr(phba, elsiocb, ndlp);
3360 phba->fc_stat.elsRcvFARP++;
3361 lpfc_els_rcv_farp(phba, elsiocb, ndlp);
3364 phba->fc_stat.elsRcvFAN++;
3365 lpfc_els_rcv_fan(phba, elsiocb, ndlp);
3368 phba->fc_stat.elsRcvPRLI++;
3369 if (phba->hba_state < LPFC_DISC_AUTH) {
3373 lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
3376 phba->fc_stat.elsRcvLIRR++;
3377 lpfc_els_rcv_lirr(phba, elsiocb, ndlp);
3379 mempool_free( ndlp, phba->nlp_mem_pool);
3383 phba->fc_stat.elsRcvRPS++;
3384 lpfc_els_rcv_rps(phba, elsiocb, ndlp);
3386 mempool_free( ndlp, phba->nlp_mem_pool);
3390 phba->fc_stat.elsRcvRPL++;
3391 lpfc_els_rcv_rpl(phba, elsiocb, ndlp);
3393 mempool_free( ndlp, phba->nlp_mem_pool);
3397 phba->fc_stat.elsRcvRNID++;
3398 lpfc_els_rcv_rnid(phba, elsiocb, ndlp);
3400 mempool_free( ndlp, phba->nlp_mem_pool);
3404 /* Unsupported ELS command, reject */
3407 /* Unknown ELS command <elsCmd> received from NPORT <did> */
3408 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
3409 "%d:0115 Unknown ELS command x%x received from "
3410 "NPORT x%x\n", phba->brd_no, cmd, did);
3412 mempool_free( ndlp, phba->nlp_mem_pool);
3417 /* check if need to LS_RJT received ELS cmd */
3419 stat.un.b.lsRjtRsvd0 = 0;
3420 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3421 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
3422 stat.un.b.vendorUnique = 0;
3423 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, elsiocb, ndlp);
3426 if (elsiocb->context2) {
3427 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3431 /* check if need to drop received ELS cmd */
3432 if (drop_cmd == 1) {
3433 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
3434 "%d:0111 Dropping received ELS cmd "
3435 "Data: x%x x%x x%x\n", phba->brd_no,
3436 icmd->ulpStatus, icmd->un.ulpWord[4],
3438 phba->fc_stat.elsRcvDrop++;