1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 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 *******************************************************************/
21 /* See Fibre Channel protocol T11 FC-LS for details */
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/slab.h>
25 #include <linux/interrupt.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
36 #include "lpfc_sli4.h"
38 #include "lpfc_disc.h"
39 #include "lpfc_scsi.h"
41 #include "lpfc_logmsg.h"
42 #include "lpfc_crtn.h"
43 #include "lpfc_vport.h"
44 #include "lpfc_debugfs.h"
46 static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
48 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
50 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport);
51 static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
52 struct lpfc_nodelist *ndlp, uint8_t retry);
53 static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
54 struct lpfc_iocbq *iocb);
56 static int lpfc_max_els_tries = 3;
59 * lpfc_els_chk_latt - Check host link attention event for a vport
60 * @vport: pointer to a host virtual N_Port data structure.
62 * This routine checks whether there is an outstanding host link
63 * attention event during the discovery process with the @vport. It is done
64 * by reading the HBA's Host Attention (HA) register. If there is any host
65 * link attention events during this @vport's discovery process, the @vport
66 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
67 * be issued if the link state is not already in host link cleared state,
68 * and a return code shall indicate whether the host link attention event
71 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
72 * state in LPFC_VPORT_READY, the request for checking host link attention
73 * event will be ignored and a return code shall indicate no host link
74 * attention event had happened.
77 * 0 - no host link attention event happened
78 * 1 - host link attention event happened
81 lpfc_els_chk_latt(struct lpfc_vport *vport)
83 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
84 struct lpfc_hba *phba = vport->phba;
87 if (vport->port_state >= LPFC_VPORT_READY ||
88 phba->link_state == LPFC_LINK_DOWN ||
89 phba->sli_rev > LPFC_SLI_REV3)
92 /* Read the HBA Host Attention Register */
93 if (lpfc_readl(phba->HAregaddr, &ha_copy))
96 if (!(ha_copy & HA_LATT))
99 /* Pending Link Event during Discovery */
100 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
101 "0237 Pending Link Event during "
102 "Discovery: State x%x\n",
103 phba->pport->port_state);
105 /* CLEAR_LA should re-enable link attention events and
106 * we should then immediately take a LATT event. The
107 * LATT processing should call lpfc_linkdown() which
108 * will cleanup any left over in-progress discovery
111 spin_lock_irq(shost->host_lock);
112 vport->fc_flag |= FC_ABORT_DISCOVERY;
113 spin_unlock_irq(shost->host_lock);
115 if (phba->link_state != LPFC_CLEAR_LA)
116 lpfc_issue_clear_la(phba, vport);
122 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
123 * @vport: pointer to a host virtual N_Port data structure.
124 * @expectRsp: flag indicating whether response is expected.
125 * @cmdSize: size of the ELS command.
126 * @retry: number of retries to the command IOCB when it fails.
127 * @ndlp: pointer to a node-list data structure.
128 * @did: destination identifier.
129 * @elscmd: the ELS command code.
131 * This routine is used for allocating a lpfc-IOCB data structure from
132 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
133 * passed into the routine for discovery state machine to issue an Extended
134 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
135 * and preparation routine that is used by all the discovery state machine
136 * routines and the ELS command-specific fields will be later set up by
137 * the individual discovery machine routines after calling this routine
138 * allocating and preparing a generic IOCB data structure. It fills in the
139 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
140 * payload and response payload (if expected). The reference count on the
141 * ndlp is incremented by 1 and the reference to the ndlp is put into
142 * context1 of the IOCB data structure for this IOCB to hold the ndlp
143 * reference for the command's callback function to access later.
146 * Pointer to the newly allocated/prepared els iocb data structure
147 * NULL - when els iocb data structure allocation/preparation failed
150 lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
151 uint16_t cmdSize, uint8_t retry,
152 struct lpfc_nodelist *ndlp, uint32_t did,
155 struct lpfc_hba *phba = vport->phba;
156 struct lpfc_iocbq *elsiocb;
157 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
158 struct ulp_bde64 *bpl;
162 if (!lpfc_is_link_up(phba))
165 /* Allocate buffer for command iocb */
166 elsiocb = lpfc_sli_get_iocbq(phba);
172 * If this command is for fabric controller and HBA running
173 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
175 if ((did == Fabric_DID) &&
176 (phba->hba_flag & HBA_FIP_SUPPORT) &&
177 ((elscmd == ELS_CMD_FLOGI) ||
178 (elscmd == ELS_CMD_FDISC) ||
179 (elscmd == ELS_CMD_LOGO)))
182 elsiocb->iocb_flag |=
183 ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT)
184 & LPFC_FIP_ELS_ID_MASK);
187 elsiocb->iocb_flag |=
188 ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT)
189 & LPFC_FIP_ELS_ID_MASK);
192 elsiocb->iocb_flag |=
193 ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT)
194 & LPFC_FIP_ELS_ID_MASK);
198 elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
200 icmd = &elsiocb->iocb;
202 /* fill in BDEs for command */
203 /* Allocate buffer for command payload */
204 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
206 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
207 if (!pcmd || !pcmd->virt)
208 goto els_iocb_free_pcmb_exit;
210 INIT_LIST_HEAD(&pcmd->list);
212 /* Allocate buffer for response payload */
214 prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
216 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
218 if (!prsp || !prsp->virt)
219 goto els_iocb_free_prsp_exit;
220 INIT_LIST_HEAD(&prsp->list);
224 /* Allocate buffer for Buffer ptr list */
225 pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
227 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
229 if (!pbuflist || !pbuflist->virt)
230 goto els_iocb_free_pbuf_exit;
232 INIT_LIST_HEAD(&pbuflist->list);
235 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
236 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
237 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
238 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
240 icmd->un.elsreq64.remoteID = did; /* DID */
241 icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
242 if (elscmd == ELS_CMD_FLOGI)
243 icmd->ulpTimeout = FF_DEF_RATOV * 2;
245 icmd->ulpTimeout = phba->fc_ratov * 2;
247 icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
248 icmd->un.xseq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
249 icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
250 icmd->un.xseq64.bdl.bdeSize = sizeof(struct ulp_bde64);
251 icmd->un.xseq64.xmit_els_remoteID = did; /* DID */
252 icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
254 icmd->ulpBdeCount = 1;
256 icmd->ulpClass = CLASS3;
259 * If we have NPIV enabled, we want to send ELS traffic by VPI.
260 * For SLI4, since the driver controls VPIs we also want to include
261 * all ELS pt2pt protocol traffic as well.
263 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) ||
264 ((phba->sli_rev == LPFC_SLI_REV4) &&
265 (vport->fc_flag & FC_PT2PT))) {
268 icmd->un.elsreq64.myID = vport->fc_myDID;
270 /* For ELS_REQUEST64_CR, use the VPI by default */
271 icmd->ulpContext = phba->vpi_ids[vport->vpi];
275 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
276 if (elscmd == ELS_CMD_ECHO)
277 icmd->ulpCt_l = 0; /* context = invalid RPI */
279 icmd->ulpCt_l = 1; /* context = VPI */
282 bpl = (struct ulp_bde64 *) pbuflist->virt;
283 bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
284 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
285 bpl->tus.f.bdeSize = cmdSize;
286 bpl->tus.f.bdeFlags = 0;
287 bpl->tus.w = le32_to_cpu(bpl->tus.w);
291 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
292 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
293 bpl->tus.f.bdeSize = FCELSSIZE;
294 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
295 bpl->tus.w = le32_to_cpu(bpl->tus.w);
298 /* prevent preparing iocb with NULL ndlp reference */
299 elsiocb->context1 = lpfc_nlp_get(ndlp);
300 if (!elsiocb->context1)
301 goto els_iocb_free_pbuf_exit;
302 elsiocb->context2 = pcmd;
303 elsiocb->context3 = pbuflist;
304 elsiocb->retry = retry;
305 elsiocb->vport = vport;
306 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
309 list_add(&prsp->list, &pcmd->list);
312 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
313 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
314 "0116 Xmit ELS command x%x to remote "
315 "NPORT x%x I/O tag: x%x, port state:x%x"
317 elscmd, did, elsiocb->iotag,
321 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
322 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
323 "0117 Xmit ELS response x%x to remote "
324 "NPORT x%x I/O tag: x%x, size: x%x "
325 "port_state x%x fc_flag x%x\n",
326 elscmd, ndlp->nlp_DID, elsiocb->iotag,
327 cmdSize, vport->port_state,
332 els_iocb_free_pbuf_exit:
334 lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
337 els_iocb_free_prsp_exit:
338 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
341 els_iocb_free_pcmb_exit:
343 lpfc_sli_release_iocbq(phba, elsiocb);
348 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
349 * @vport: pointer to a host virtual N_Port data structure.
351 * This routine issues a fabric registration login for a @vport. An
352 * active ndlp node with Fabric_DID must already exist for this @vport.
353 * The routine invokes two mailbox commands to carry out fabric registration
354 * login through the HBA firmware: the first mailbox command requests the
355 * HBA to perform link configuration for the @vport; and the second mailbox
356 * command requests the HBA to perform the actual fabric registration login
360 * 0 - successfully issued fabric registration login for @vport
361 * -ENXIO -- failed to issue fabric registration login for @vport
364 lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
366 struct lpfc_hba *phba = vport->phba;
368 struct lpfc_dmabuf *mp;
369 struct lpfc_nodelist *ndlp;
370 struct serv_parm *sp;
374 sp = &phba->fc_fabparam;
375 ndlp = lpfc_findnode_did(vport, Fabric_DID);
376 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
381 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
387 vport->port_state = LPFC_FABRIC_CFG_LINK;
388 lpfc_config_link(phba, mbox);
389 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
392 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
393 if (rc == MBX_NOT_FINISHED) {
398 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
403 rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
410 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
412 /* increment the reference count on ndlp to hold reference
413 * for the callback routine.
415 mbox->context2 = lpfc_nlp_get(ndlp);
417 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
418 if (rc == MBX_NOT_FINISHED) {
420 goto fail_issue_reg_login;
425 fail_issue_reg_login:
426 /* decrement the reference count on ndlp just incremented
427 * for the failed mbox command.
430 mp = (struct lpfc_dmabuf *) mbox->context1;
431 lpfc_mbuf_free(phba, mp->virt, mp->phys);
434 mempool_free(mbox, phba->mbox_mem_pool);
437 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
438 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
439 "0249 Cannot issue Register Fabric login: Err %d\n", err);
444 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
445 * @vport: pointer to a host virtual N_Port data structure.
447 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
448 * the @vport. This mailbox command is necessary for SLI4 port only.
451 * 0 - successfully issued REG_VFI for @vport
452 * A failure code otherwise.
455 lpfc_issue_reg_vfi(struct lpfc_vport *vport)
457 struct lpfc_hba *phba = vport->phba;
459 struct lpfc_nodelist *ndlp;
460 struct lpfc_dmabuf *dmabuf;
463 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
464 if ((phba->sli_rev == LPFC_SLI_REV4) &&
465 !(phba->link_flag & LS_LOOPBACK_MODE) &&
466 !(vport->fc_flag & FC_PT2PT)) {
467 ndlp = lpfc_findnode_did(vport, Fabric_DID);
468 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
474 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
479 dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
482 goto fail_free_dmabuf;
485 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
488 goto fail_free_coherent;
490 vport->port_state = LPFC_FABRIC_CFG_LINK;
491 memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam));
492 lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
494 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
495 mboxq->vport = vport;
496 mboxq->context1 = dmabuf;
497 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
498 if (rc == MBX_NOT_FINISHED) {
505 mempool_free(mboxq, phba->mbox_mem_pool);
507 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
511 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
512 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
513 "0289 Issue Register VFI failed: Err %d\n", rc);
518 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
519 * @vport: pointer to a host virtual N_Port data structure.
521 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
522 * the @vport. This mailbox command is necessary for SLI4 port only.
525 * 0 - successfully issued REG_VFI for @vport
526 * A failure code otherwise.
529 lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
531 struct lpfc_hba *phba = vport->phba;
532 struct Scsi_Host *shost;
536 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
538 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
539 "2556 UNREG_VFI mbox allocation failed"
540 "HBA state x%x\n", phba->pport->port_state);
544 lpfc_unreg_vfi(mboxq, vport);
545 mboxq->vport = vport;
546 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
548 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
549 if (rc == MBX_NOT_FINISHED) {
550 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
551 "2557 UNREG_VFI issue mbox failed rc x%x "
553 rc, phba->pport->port_state);
554 mempool_free(mboxq, phba->mbox_mem_pool);
558 shost = lpfc_shost_from_vport(vport);
559 spin_lock_irq(shost->host_lock);
560 vport->fc_flag &= ~FC_VFI_REGISTERED;
561 spin_unlock_irq(shost->host_lock);
566 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
567 * @vport: pointer to a host virtual N_Port data structure.
568 * @sp: pointer to service parameter data structure.
570 * This routine is called from FLOGI/FDISC completion handler functions.
571 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
572 * node nodename is changed in the completion service parameter else return
573 * 0. This function also set flag in the vport data structure to delay
574 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
575 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
576 * node nodename is changed in the completion service parameter.
579 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
580 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
584 lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
585 struct serv_parm *sp)
587 uint8_t fabric_param_changed = 0;
588 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
590 if ((vport->fc_prevDID != vport->fc_myDID) ||
591 memcmp(&vport->fabric_portname, &sp->portName,
592 sizeof(struct lpfc_name)) ||
593 memcmp(&vport->fabric_nodename, &sp->nodeName,
594 sizeof(struct lpfc_name)))
595 fabric_param_changed = 1;
598 * Word 1 Bit 31 in common service parameter is overloaded.
599 * Word 1 Bit 31 in FLOGI request is multiple NPort request
600 * Word 1 Bit 31 in FLOGI response is clean address bit
602 * If fabric parameter is changed and clean address bit is
603 * cleared delay nport discovery if
604 * - vport->fc_prevDID != 0 (not initial discovery) OR
605 * - lpfc_delay_discovery module parameter is set.
607 if (fabric_param_changed && !sp->cmn.clean_address_bit &&
608 (vport->fc_prevDID || lpfc_delay_discovery)) {
609 spin_lock_irq(shost->host_lock);
610 vport->fc_flag |= FC_DISC_DELAYED;
611 spin_unlock_irq(shost->host_lock);
614 return fabric_param_changed;
619 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
620 * @vport: pointer to a host virtual N_Port data structure.
621 * @ndlp: pointer to a node-list data structure.
622 * @sp: pointer to service parameter data structure.
623 * @irsp: pointer to the IOCB within the lpfc response IOCB.
625 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
626 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
627 * port in a fabric topology. It properly sets up the parameters to the @ndlp
628 * from the IOCB response. It also check the newly assigned N_Port ID to the
629 * @vport against the previously assigned N_Port ID. If it is different from
630 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
631 * is invoked on all the remaining nodes with the @vport to unregister the
632 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
633 * is invoked to register login to the fabric.
636 * 0 - Success (currently, always return 0)
639 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
640 struct serv_parm *sp, IOCB_t *irsp)
642 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
643 struct lpfc_hba *phba = vport->phba;
644 struct lpfc_nodelist *np;
645 struct lpfc_nodelist *next_np;
646 uint8_t fabric_param_changed;
648 spin_lock_irq(shost->host_lock);
649 vport->fc_flag |= FC_FABRIC;
650 spin_unlock_irq(shost->host_lock);
652 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
653 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
654 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
656 phba->fc_edtovResol = sp->cmn.edtovResolution;
657 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
659 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
660 spin_lock_irq(shost->host_lock);
661 vport->fc_flag |= FC_PUBLIC_LOOP;
662 spin_unlock_irq(shost->host_lock);
665 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
666 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
667 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
668 ndlp->nlp_class_sup = 0;
669 if (sp->cls1.classValid)
670 ndlp->nlp_class_sup |= FC_COS_CLASS1;
671 if (sp->cls2.classValid)
672 ndlp->nlp_class_sup |= FC_COS_CLASS2;
673 if (sp->cls3.classValid)
674 ndlp->nlp_class_sup |= FC_COS_CLASS3;
675 if (sp->cls4.classValid)
676 ndlp->nlp_class_sup |= FC_COS_CLASS4;
677 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
678 sp->cmn.bbRcvSizeLsb;
680 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
681 memcpy(&vport->fabric_portname, &sp->portName,
682 sizeof(struct lpfc_name));
683 memcpy(&vport->fabric_nodename, &sp->nodeName,
684 sizeof(struct lpfc_name));
685 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
687 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
688 if (sp->cmn.response_multiple_NPort) {
689 lpfc_printf_vlog(vport, KERN_WARNING,
691 "1816 FLOGI NPIV supported, "
692 "response data 0x%x\n",
693 sp->cmn.response_multiple_NPort);
694 spin_lock_irq(&phba->hbalock);
695 phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
696 spin_unlock_irq(&phba->hbalock);
698 /* Because we asked f/w for NPIV it still expects us
699 to call reg_vnpid atleast for the physcial host */
700 lpfc_printf_vlog(vport, KERN_WARNING,
702 "1817 Fabric does not support NPIV "
703 "- configuring single port mode.\n");
704 spin_lock_irq(&phba->hbalock);
705 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
706 spin_unlock_irq(&phba->hbalock);
711 * For FC we need to do some special processing because of the SLI
712 * Port's default settings of the Common Service Parameters.
714 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) {
715 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
716 if ((phba->sli_rev == LPFC_SLI_REV4) && fabric_param_changed)
717 lpfc_unregister_fcf_prep(phba);
719 /* This should just update the VFI CSPs*/
720 if (vport->fc_flag & FC_VFI_REGISTERED)
721 lpfc_issue_reg_vfi(vport);
724 if (fabric_param_changed &&
725 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
727 /* If our NportID changed, we need to ensure all
728 * remaining NPORTs get unreg_login'ed.
730 list_for_each_entry_safe(np, next_np,
731 &vport->fc_nodes, nlp_listp) {
732 if (!NLP_CHK_NODE_ACT(np))
734 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
735 !(np->nlp_flag & NLP_NPR_ADISC))
737 spin_lock_irq(shost->host_lock);
738 np->nlp_flag &= ~NLP_NPR_ADISC;
739 spin_unlock_irq(shost->host_lock);
740 lpfc_unreg_rpi(vport, np);
742 lpfc_cleanup_pending_mbox(vport);
744 if (phba->sli_rev == LPFC_SLI_REV4) {
745 lpfc_sli4_unreg_all_rpis(vport);
746 lpfc_mbx_unreg_vpi(vport);
747 spin_lock_irq(shost->host_lock);
748 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
749 spin_unlock_irq(shost->host_lock);
753 * For SLI3 and SLI4, the VPI needs to be reregistered in
754 * response to this fabric parameter change event.
756 spin_lock_irq(shost->host_lock);
757 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
758 spin_unlock_irq(shost->host_lock);
759 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
760 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
762 * Driver needs to re-reg VPI in order for f/w
763 * to update the MAC address.
765 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
766 lpfc_register_new_vport(phba, vport, ndlp);
770 if (phba->sli_rev < LPFC_SLI_REV4) {
771 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
772 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
773 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
774 lpfc_register_new_vport(phba, vport, ndlp);
776 lpfc_issue_fabric_reglogin(vport);
778 ndlp->nlp_type |= NLP_FABRIC;
779 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
780 if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
781 (vport->vpi_state & LPFC_VPI_REGISTERED)) {
782 lpfc_start_fdiscs(phba);
783 lpfc_do_scr_ns_plogi(phba, vport);
784 } else if (vport->fc_flag & FC_VFI_REGISTERED)
785 lpfc_issue_init_vpi(vport);
787 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
788 "3135 Need register VFI: (x%x/%x)\n",
789 vport->fc_prevDID, vport->fc_myDID);
790 lpfc_issue_reg_vfi(vport);
797 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
798 * @vport: pointer to a host virtual N_Port data structure.
799 * @ndlp: pointer to a node-list data structure.
800 * @sp: pointer to service parameter data structure.
802 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
803 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
804 * in a point-to-point topology. First, the @vport's N_Port Name is compared
805 * with the received N_Port Name: if the @vport's N_Port Name is greater than
806 * the received N_Port Name lexicographically, this node shall assign local
807 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
808 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
809 * this node shall just wait for the remote node to issue PLOGI and assign
817 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
818 struct serv_parm *sp)
820 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
821 struct lpfc_hba *phba = vport->phba;
825 spin_lock_irq(shost->host_lock);
826 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
827 spin_unlock_irq(shost->host_lock);
829 phba->fc_edtov = FF_DEF_EDTOV;
830 phba->fc_ratov = FF_DEF_RATOV;
831 rc = memcmp(&vport->fc_portname, &sp->portName,
832 sizeof(vport->fc_portname));
833 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
836 /* This side will initiate the PLOGI */
837 spin_lock_irq(shost->host_lock);
838 vport->fc_flag |= FC_PT2PT_PLOGI;
839 spin_unlock_irq(shost->host_lock);
842 * N_Port ID cannot be 0, set our to LocalID the other
843 * side will be RemoteID.
848 vport->fc_myDID = PT2PT_LocalID;
850 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
854 lpfc_config_link(phba, mbox);
856 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
858 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
859 if (rc == MBX_NOT_FINISHED) {
860 mempool_free(mbox, phba->mbox_mem_pool);
865 * For SLI4, the VFI/VPI are registered AFTER the
866 * Nport with the higher WWPN sends the PLOGI with
867 * an assigned NPortId.
871 if ((phba->sli_rev == LPFC_SLI_REV4) && rc)
872 lpfc_issue_reg_vfi(vport);
874 /* Decrement ndlp reference count indicating that ndlp can be
875 * safely released when other references to it are done.
879 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
882 * Cannot find existing Fabric ndlp, so allocate a
885 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
888 lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID);
889 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
890 ndlp = lpfc_enable_node(vport, ndlp,
891 NLP_STE_UNUSED_NODE);
896 memcpy(&ndlp->nlp_portname, &sp->portName,
897 sizeof(struct lpfc_name));
898 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
899 sizeof(struct lpfc_name));
900 /* Set state will put ndlp onto node list if not already done */
901 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
902 spin_lock_irq(shost->host_lock);
903 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
904 spin_unlock_irq(shost->host_lock);
906 /* This side will wait for the PLOGI, decrement ndlp reference
907 * count indicating that ndlp can be released when other
908 * references to it are done.
912 /* If we are pt2pt with another NPort, force NPIV off! */
913 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
915 spin_lock_irq(shost->host_lock);
916 vport->fc_flag |= FC_PT2PT;
917 spin_unlock_irq(shost->host_lock);
918 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
919 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
920 lpfc_unregister_fcf_prep(phba);
922 /* The FC_VFI_REGISTERED flag will get clear in the cmpl
923 * handler for unreg_vfi, but if we don't force the
924 * FC_VFI_REGISTERED flag then the reg_vfi mailbox could be
925 * built with the update bit set instead of just the vp bit to
926 * change the Nport ID. We need to have the vp set and the
927 * Upd cleared on topology changes.
929 spin_lock_irq(shost->host_lock);
930 vport->fc_flag &= ~FC_VFI_REGISTERED;
931 spin_unlock_irq(shost->host_lock);
932 phba->fc_topology_changed = 0;
933 lpfc_issue_reg_vfi(vport);
936 /* Start discovery - this should just do CLEAR_LA */
937 lpfc_disc_start(vport);
944 * lpfc_cmpl_els_flogi - Completion callback function for flogi
945 * @phba: pointer to lpfc hba data structure.
946 * @cmdiocb: pointer to lpfc command iocb data structure.
947 * @rspiocb: pointer to lpfc response iocb data structure.
949 * This routine is the top-level completion callback function for issuing
950 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
951 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
952 * retry has been made (either immediately or delayed with lpfc_els_retry()
953 * returning 1), the command IOCB will be released and function returned.
954 * If the retry attempt has been given up (possibly reach the maximum
955 * number of retries), one additional decrement of ndlp reference shall be
956 * invoked before going out after releasing the command IOCB. This will
957 * actually release the remote node (Note, lpfc_els_free_iocb() will also
958 * invoke one decrement of ndlp reference count). If no error reported in
959 * the IOCB status, the command Port ID field is used to determine whether
960 * this is a point-to-point topology or a fabric topology: if the Port ID
961 * field is assigned, it is a fabric topology; otherwise, it is a
962 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
963 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
964 * specific topology completion conditions.
967 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
968 struct lpfc_iocbq *rspiocb)
970 struct lpfc_vport *vport = cmdiocb->vport;
971 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
972 IOCB_t *irsp = &rspiocb->iocb;
973 struct lpfc_nodelist *ndlp = cmdiocb->context1;
974 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
975 struct serv_parm *sp;
979 /* Check to see if link went down during discovery */
980 if (lpfc_els_chk_latt(vport)) {
981 /* One additional decrement on node reference count to
982 * trigger the release of the node
988 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
989 "FLOGI cmpl: status:x%x/x%x state:x%x",
990 irsp->ulpStatus, irsp->un.ulpWord[4],
993 if (irsp->ulpStatus) {
995 * In case of FIP mode, perform roundrobin FCF failover
996 * due to new FCF discovery
998 if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
999 (phba->fcf.fcf_flag & FCF_DISCOVERY)) {
1000 if (phba->link_state < LPFC_LINK_UP)
1001 goto stop_rr_fcf_flogi;
1002 if ((phba->fcoe_cvl_eventtag_attn ==
1003 phba->fcoe_cvl_eventtag) &&
1004 (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1005 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1007 goto stop_rr_fcf_flogi;
1009 phba->fcoe_cvl_eventtag_attn =
1010 phba->fcoe_cvl_eventtag;
1011 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1012 "2611 FLOGI failed on FCF (x%x), "
1013 "status:x%x/x%x, tmo:x%x, perform "
1014 "roundrobin FCF failover\n",
1015 phba->fcf.current_rec.fcf_indx,
1016 irsp->ulpStatus, irsp->un.ulpWord[4],
1018 lpfc_sli4_set_fcf_flogi_fail(phba,
1019 phba->fcf.current_rec.fcf_indx);
1020 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
1021 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
1028 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1029 "2858 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1030 irsp->ulpStatus, irsp->un.ulpWord[4],
1033 /* Check for retry */
1034 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
1038 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1039 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1040 irsp->ulpStatus, irsp->un.ulpWord[4],
1043 /* FLOGI failed, so there is no fabric */
1044 spin_lock_irq(shost->host_lock);
1045 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1046 spin_unlock_irq(shost->host_lock);
1048 /* If private loop, then allow max outstanding els to be
1049 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1050 * alpa map would take too long otherwise.
1052 if (phba->alpa_map[0] == 0)
1053 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
1054 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1055 (!(vport->fc_flag & FC_VFI_REGISTERED) ||
1056 (vport->fc_prevDID != vport->fc_myDID) ||
1057 phba->fc_topology_changed)) {
1058 if (vport->fc_flag & FC_VFI_REGISTERED) {
1059 if (phba->fc_topology_changed) {
1060 lpfc_unregister_fcf_prep(phba);
1061 spin_lock_irq(shost->host_lock);
1062 vport->fc_flag &= ~FC_VFI_REGISTERED;
1063 spin_unlock_irq(shost->host_lock);
1064 phba->fc_topology_changed = 0;
1066 lpfc_sli4_unreg_all_rpis(vport);
1069 lpfc_issue_reg_vfi(vport);
1075 spin_lock_irq(shost->host_lock);
1076 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
1077 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
1078 spin_unlock_irq(shost->host_lock);
1081 * The FLogI succeeded. Sync the data for the CPU before
1084 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1087 sp = prsp->virt + sizeof(uint32_t);
1089 /* FLOGI completes successfully */
1090 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1091 "0101 FLOGI completes successfully, I/O tag:x%x, "
1092 "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb->iotag,
1093 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
1094 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
1095 vport->port_state, vport->fc_flag);
1097 if (vport->port_state == LPFC_FLOGI) {
1099 * If Common Service Parameters indicate Nport
1100 * we are point to point, if Fport we are Fabric.
1103 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
1104 else if (!(phba->hba_flag & HBA_FCOE_MODE))
1105 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
1107 lpfc_printf_vlog(vport, KERN_ERR,
1109 "2831 FLOGI response with cleared Fabric "
1110 "bit fcf_index 0x%x "
1111 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1113 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1114 phba->fcf.current_rec.fcf_indx,
1115 phba->fcf.current_rec.switch_name[0],
1116 phba->fcf.current_rec.switch_name[1],
1117 phba->fcf.current_rec.switch_name[2],
1118 phba->fcf.current_rec.switch_name[3],
1119 phba->fcf.current_rec.switch_name[4],
1120 phba->fcf.current_rec.switch_name[5],
1121 phba->fcf.current_rec.switch_name[6],
1122 phba->fcf.current_rec.switch_name[7],
1123 phba->fcf.current_rec.fabric_name[0],
1124 phba->fcf.current_rec.fabric_name[1],
1125 phba->fcf.current_rec.fabric_name[2],
1126 phba->fcf.current_rec.fabric_name[3],
1127 phba->fcf.current_rec.fabric_name[4],
1128 phba->fcf.current_rec.fabric_name[5],
1129 phba->fcf.current_rec.fabric_name[6],
1130 phba->fcf.current_rec.fabric_name[7]);
1132 spin_lock_irq(&phba->hbalock);
1133 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1134 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1135 spin_unlock_irq(&phba->hbalock);
1139 /* Mark the FCF discovery process done */
1140 if (phba->hba_flag & HBA_FIP_SUPPORT)
1141 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
1143 "2769 FLOGI to FCF (x%x) "
1144 "completed successfully\n",
1145 phba->fcf.current_rec.fcf_indx);
1146 spin_lock_irq(&phba->hbalock);
1147 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1148 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1149 spin_unlock_irq(&phba->hbalock);
1157 if (!lpfc_error_lost_link(irsp)) {
1158 /* FLOGI failed, so just use loop map to make discovery list */
1159 lpfc_disc_list_loopmap(vport);
1161 /* Start discovery */
1162 lpfc_disc_start(vport);
1163 } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1164 (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1165 IOERR_SLI_ABORTED) &&
1166 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1167 IOERR_SLI_DOWN))) &&
1168 (phba->link_state != LPFC_CLEAR_LA)) {
1169 /* If FLOGI failed enable link interrupt. */
1170 lpfc_issue_clear_la(phba, vport);
1173 lpfc_els_free_iocb(phba, cmdiocb);
1177 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1178 * @vport: pointer to a host virtual N_Port data structure.
1179 * @ndlp: pointer to a node-list data structure.
1180 * @retry: number of retries to the command IOCB.
1182 * This routine issues a Fabric Login (FLOGI) Request ELS command
1183 * for a @vport. The initiator service parameters are put into the payload
1184 * of the FLOGI Request IOCB and the top-level callback function pointer
1185 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1186 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1187 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1189 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1190 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1191 * will be stored into the context1 field of the IOCB for the completion
1192 * callback function to the FLOGI ELS command.
1195 * 0 - successfully issued flogi iocb for @vport
1196 * 1 - failed to issue flogi iocb for @vport
1199 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1202 struct lpfc_hba *phba = vport->phba;
1203 struct serv_parm *sp;
1205 struct lpfc_iocbq *elsiocb;
1211 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1212 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1213 ndlp->nlp_DID, ELS_CMD_FLOGI);
1218 icmd = &elsiocb->iocb;
1219 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1221 /* For FLOGI request, remainder of payload is service parameters */
1222 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
1223 pcmd += sizeof(uint32_t);
1224 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1225 sp = (struct serv_parm *) pcmd;
1227 /* Setup CSPs accordingly for Fabric */
1228 sp->cmn.e_d_tov = 0;
1229 sp->cmn.w2.r_a_tov = 0;
1230 sp->cmn.virtual_fabric_support = 0;
1231 sp->cls1.classValid = 0;
1232 if (sp->cmn.fcphLow < FC_PH3)
1233 sp->cmn.fcphLow = FC_PH3;
1234 if (sp->cmn.fcphHigh < FC_PH3)
1235 sp->cmn.fcphHigh = FC_PH3;
1237 if (phba->sli_rev == LPFC_SLI_REV4) {
1238 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1239 LPFC_SLI_INTF_IF_TYPE_0) {
1240 elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
1241 elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
1242 /* FLOGI needs to be 3 for WQE FCFI */
1243 /* Set the fcfi to the fcfi we registered with */
1244 elsiocb->iocb.ulpContext = phba->fcf.fcfi;
1246 /* Can't do SLI4 class2 without support sequence coalescing */
1247 sp->cls2.classValid = 0;
1248 sp->cls2.seqDelivery = 0;
1250 /* Historical, setting sequential-delivery bit for SLI3 */
1251 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
1252 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
1253 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1254 sp->cmn.request_multiple_Nport = 1;
1255 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1259 sp->cmn.request_multiple_Nport = 0;
1262 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
1263 icmd->un.elsreq64.myID = 0;
1264 icmd->un.elsreq64.fl = 1;
1267 tmo = phba->fc_ratov;
1268 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
1269 lpfc_set_disctmo(vport);
1270 phba->fc_ratov = tmo;
1272 phba->fc_stat.elsXmitFLOGI++;
1273 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
1275 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1276 "Issue FLOGI: opt:x%x",
1277 phba->sli3_options, 0, 0);
1279 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
1280 if (rc == IOCB_ERROR) {
1281 lpfc_els_free_iocb(phba, elsiocb);
1288 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1289 * @phba: pointer to lpfc hba data structure.
1291 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1292 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1293 * list and issues an abort IOCB commond on each outstanding IOCB that
1294 * contains a active Fabric_DID ndlp. Note that this function is to issue
1295 * the abort IOCB command on all the outstanding IOCBs, thus when this
1296 * function returns, it does not guarantee all the IOCBs are actually aborted.
1299 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1302 lpfc_els_abort_flogi(struct lpfc_hba *phba)
1304 struct lpfc_sli_ring *pring;
1305 struct lpfc_iocbq *iocb, *next_iocb;
1306 struct lpfc_nodelist *ndlp;
1309 /* Abort outstanding I/O on NPort <nlp_DID> */
1310 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1311 "0201 Abort outstanding I/O on NPort x%x\n",
1314 pring = &phba->sli.ring[LPFC_ELS_RING];
1317 * Check the txcmplq for an iocb that matches the nport the driver is
1320 spin_lock_irq(&phba->hbalock);
1321 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1323 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
1324 ndlp = (struct lpfc_nodelist *)(iocb->context1);
1325 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
1326 (ndlp->nlp_DID == Fabric_DID))
1327 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1330 spin_unlock_irq(&phba->hbalock);
1336 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1337 * @vport: pointer to a host virtual N_Port data structure.
1339 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1340 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1341 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1342 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1343 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1344 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1348 * 0 - failed to issue initial flogi for @vport
1349 * 1 - successfully issued initial flogi for @vport
1352 lpfc_initial_flogi(struct lpfc_vport *vport)
1354 struct lpfc_hba *phba = vport->phba;
1355 struct lpfc_nodelist *ndlp;
1357 vport->port_state = LPFC_FLOGI;
1358 lpfc_set_disctmo(vport);
1360 /* First look for the Fabric ndlp */
1361 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1363 /* Cannot find existing Fabric ndlp, so allocate a new one */
1364 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1367 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1368 /* Set the node type */
1369 ndlp->nlp_type |= NLP_FABRIC;
1370 /* Put ndlp onto node list */
1371 lpfc_enqueue_node(vport, ndlp);
1372 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1373 /* re-setup ndlp without removing from node list */
1374 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1379 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
1380 /* This decrement of reference count to node shall kick off
1381 * the release of the node.
1390 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1391 * @vport: pointer to a host virtual N_Port data structure.
1393 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1394 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1395 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1396 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1397 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1398 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1402 * 0 - failed to issue initial fdisc for @vport
1403 * 1 - successfully issued initial fdisc for @vport
1406 lpfc_initial_fdisc(struct lpfc_vport *vport)
1408 struct lpfc_hba *phba = vport->phba;
1409 struct lpfc_nodelist *ndlp;
1411 /* First look for the Fabric ndlp */
1412 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1414 /* Cannot find existing Fabric ndlp, so allocate a new one */
1415 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1418 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1419 /* Put ndlp onto node list */
1420 lpfc_enqueue_node(vport, ndlp);
1421 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1422 /* re-setup ndlp without removing from node list */
1423 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1428 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
1429 /* decrement node reference count to trigger the release of
1439 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1440 * @vport: pointer to a host virtual N_Port data structure.
1442 * This routine checks whether there are more remaining Port Logins
1443 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1444 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1445 * to issue ELS PLOGIs up to the configured discover threads with the
1446 * @vport (@vport->cfg_discovery_threads). The function also decrement
1447 * the @vport's num_disc_node by 1 if it is not already 0.
1450 lpfc_more_plogi(struct lpfc_vport *vport)
1452 if (vport->num_disc_nodes)
1453 vport->num_disc_nodes--;
1455 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1456 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1457 "0232 Continue discovery with %d PLOGIs to go "
1458 "Data: x%x x%x x%x\n",
1459 vport->num_disc_nodes, vport->fc_plogi_cnt,
1460 vport->fc_flag, vport->port_state);
1461 /* Check to see if there are more PLOGIs to be sent */
1462 if (vport->fc_flag & FC_NLP_MORE)
1463 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1464 lpfc_els_disc_plogi(vport);
1470 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1471 * @phba: pointer to lpfc hba data structure.
1472 * @prsp: pointer to response IOCB payload.
1473 * @ndlp: pointer to a node-list data structure.
1475 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1476 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1477 * The following cases are considered N_Port confirmed:
1478 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1479 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1480 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1481 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1482 * 1) if there is a node on vport list other than the @ndlp with the same
1483 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1484 * on that node to release the RPI associated with the node; 2) if there is
1485 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1486 * into, a new node shall be allocated (or activated). In either case, the
1487 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1488 * be released and the new_ndlp shall be put on to the vport node list and
1489 * its pointer returned as the confirmed node.
1491 * Note that before the @ndlp got "released", the keepDID from not-matching
1492 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1493 * of the @ndlp. This is because the release of @ndlp is actually to put it
1494 * into an inactive state on the vport node list and the vport node list
1495 * management algorithm does not allow two node with a same DID.
1498 * pointer to the PLOGI N_Port @ndlp
1500 static struct lpfc_nodelist *
1501 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
1502 struct lpfc_nodelist *ndlp)
1504 struct lpfc_vport *vport = ndlp->vport;
1505 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1506 struct lpfc_nodelist *new_ndlp;
1507 struct lpfc_rport_data *rdata;
1508 struct fc_rport *rport;
1509 struct serv_parm *sp;
1510 uint8_t name[sizeof(struct lpfc_name)];
1511 uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
1512 uint16_t keep_nlp_state;
1515 unsigned long *active_rrqs_xri_bitmap = NULL;
1517 /* Fabric nodes can have the same WWPN so we don't bother searching
1518 * by WWPN. Just return the ndlp that was given to us.
1520 if (ndlp->nlp_type & NLP_FABRIC)
1523 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
1524 memset(name, 0, sizeof(struct lpfc_name));
1526 /* Now we find out if the NPort we are logging into, matches the WWPN
1527 * we have for that ndlp. If not, we have some work to do.
1529 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
1531 if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp))
1533 if (phba->sli_rev == LPFC_SLI_REV4) {
1534 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1536 if (active_rrqs_xri_bitmap)
1537 memset(active_rrqs_xri_bitmap, 0,
1538 phba->cfg_rrq_xri_bitmap_sz);
1541 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1542 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1543 ndlp, ndlp->nlp_DID, new_ndlp);
1546 rc = memcmp(&ndlp->nlp_portname, name,
1547 sizeof(struct lpfc_name));
1549 if (active_rrqs_xri_bitmap)
1550 mempool_free(active_rrqs_xri_bitmap,
1551 phba->active_rrq_pool);
1554 new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1556 if (active_rrqs_xri_bitmap)
1557 mempool_free(active_rrqs_xri_bitmap,
1558 phba->active_rrq_pool);
1561 lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID);
1562 } else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
1563 rc = memcmp(&ndlp->nlp_portname, name,
1564 sizeof(struct lpfc_name));
1566 if (active_rrqs_xri_bitmap)
1567 mempool_free(active_rrqs_xri_bitmap,
1568 phba->active_rrq_pool);
1571 new_ndlp = lpfc_enable_node(vport, new_ndlp,
1572 NLP_STE_UNUSED_NODE);
1574 if (active_rrqs_xri_bitmap)
1575 mempool_free(active_rrqs_xri_bitmap,
1576 phba->active_rrq_pool);
1579 keepDID = new_ndlp->nlp_DID;
1580 if ((phba->sli_rev == LPFC_SLI_REV4) && active_rrqs_xri_bitmap)
1581 memcpy(active_rrqs_xri_bitmap,
1582 new_ndlp->active_rrqs_xri_bitmap,
1583 phba->cfg_rrq_xri_bitmap_sz);
1585 keepDID = new_ndlp->nlp_DID;
1586 if (phba->sli_rev == LPFC_SLI_REV4 &&
1587 active_rrqs_xri_bitmap)
1588 memcpy(active_rrqs_xri_bitmap,
1589 new_ndlp->active_rrqs_xri_bitmap,
1590 phba->cfg_rrq_xri_bitmap_sz);
1593 lpfc_unreg_rpi(vport, new_ndlp);
1594 new_ndlp->nlp_DID = ndlp->nlp_DID;
1595 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
1596 if (phba->sli_rev == LPFC_SLI_REV4)
1597 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1598 ndlp->active_rrqs_xri_bitmap,
1599 phba->cfg_rrq_xri_bitmap_sz);
1601 spin_lock_irq(shost->host_lock);
1602 keep_nlp_flag = new_ndlp->nlp_flag;
1603 new_ndlp->nlp_flag = ndlp->nlp_flag;
1604 ndlp->nlp_flag = keep_nlp_flag;
1605 spin_unlock_irq(shost->host_lock);
1607 /* Set nlp_states accordingly */
1608 keep_nlp_state = new_ndlp->nlp_state;
1609 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
1611 /* Move this back to NPR state */
1612 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1613 /* The new_ndlp is replacing ndlp totally, so we need
1614 * to put ndlp on UNUSED list and try to free it.
1616 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1617 "3179 PLOGI confirm NEW: %x %x\n",
1618 new_ndlp->nlp_DID, keepDID);
1620 /* Fix up the rport accordingly */
1621 rport = ndlp->rport;
1623 rdata = rport->dd_data;
1624 if (rdata->pnode == ndlp) {
1625 /* break the link before dropping the ref */
1628 rdata->pnode = lpfc_nlp_get(new_ndlp);
1629 new_ndlp->rport = rport;
1631 new_ndlp->nlp_type = ndlp->nlp_type;
1633 /* We shall actually free the ndlp with both nlp_DID and
1634 * nlp_portname fields equals 0 to avoid any ndlp on the
1635 * nodelist never to be used.
1637 if (ndlp->nlp_DID == 0) {
1638 spin_lock_irq(&phba->ndlp_lock);
1639 NLP_SET_FREE_REQ(ndlp);
1640 spin_unlock_irq(&phba->ndlp_lock);
1643 /* Two ndlps cannot have the same did on the nodelist */
1644 ndlp->nlp_DID = keepDID;
1645 if (phba->sli_rev == LPFC_SLI_REV4 &&
1646 active_rrqs_xri_bitmap)
1647 memcpy(ndlp->active_rrqs_xri_bitmap,
1648 active_rrqs_xri_bitmap,
1649 phba->cfg_rrq_xri_bitmap_sz);
1651 if (!NLP_CHK_NODE_ACT(ndlp))
1652 lpfc_drop_node(vport, ndlp);
1655 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1656 "3180 PLOGI confirm SWAP: %x %x\n",
1657 new_ndlp->nlp_DID, keepDID);
1659 lpfc_unreg_rpi(vport, ndlp);
1661 /* Two ndlps cannot have the same did */
1662 ndlp->nlp_DID = keepDID;
1663 if (phba->sli_rev == LPFC_SLI_REV4 &&
1664 active_rrqs_xri_bitmap)
1665 memcpy(ndlp->active_rrqs_xri_bitmap,
1666 active_rrqs_xri_bitmap,
1667 phba->cfg_rrq_xri_bitmap_sz);
1669 /* Since we are switching over to the new_ndlp,
1670 * reset the old ndlp state
1672 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1673 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
1674 keep_nlp_state = NLP_STE_NPR_NODE;
1675 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1677 /* Fix up the rport accordingly */
1678 rport = ndlp->rport;
1680 rdata = rport->dd_data;
1681 put_node = rdata->pnode != NULL;
1682 put_rport = ndlp->rport != NULL;
1683 rdata->pnode = NULL;
1688 put_device(&rport->dev);
1691 if (phba->sli_rev == LPFC_SLI_REV4 &&
1692 active_rrqs_xri_bitmap)
1693 mempool_free(active_rrqs_xri_bitmap,
1694 phba->active_rrq_pool);
1699 * lpfc_end_rscn - Check and handle more rscn for a vport
1700 * @vport: pointer to a host virtual N_Port data structure.
1702 * This routine checks whether more Registration State Change
1703 * Notifications (RSCNs) came in while the discovery state machine was in
1704 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1705 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1706 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1707 * handling the RSCNs.
1710 lpfc_end_rscn(struct lpfc_vport *vport)
1712 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1714 if (vport->fc_flag & FC_RSCN_MODE) {
1716 * Check to see if more RSCNs came in while we were
1717 * processing this one.
1719 if (vport->fc_rscn_id_cnt ||
1720 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1721 lpfc_els_handle_rscn(vport);
1723 spin_lock_irq(shost->host_lock);
1724 vport->fc_flag &= ~FC_RSCN_MODE;
1725 spin_unlock_irq(shost->host_lock);
1731 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1732 * @phba: pointer to lpfc hba data structure.
1733 * @cmdiocb: pointer to lpfc command iocb data structure.
1734 * @rspiocb: pointer to lpfc response iocb data structure.
1736 * This routine will call the clear rrq function to free the rrq and
1737 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1738 * exist then the clear_rrq is still called because the rrq needs to
1743 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1744 struct lpfc_iocbq *rspiocb)
1746 struct lpfc_vport *vport = cmdiocb->vport;
1748 struct lpfc_nodelist *ndlp;
1749 struct lpfc_node_rrq *rrq;
1751 /* we pass cmdiocb to state machine which needs rspiocb as well */
1752 rrq = cmdiocb->context_un.rrq;
1753 cmdiocb->context_un.rsp_iocb = rspiocb;
1755 irsp = &rspiocb->iocb;
1756 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1757 "RRQ cmpl: status:x%x/x%x did:x%x",
1758 irsp->ulpStatus, irsp->un.ulpWord[4],
1759 irsp->un.elsreq64.remoteID);
1761 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1762 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) {
1763 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1764 "2882 RRQ completes to NPort x%x "
1765 "with no ndlp. Data: x%x x%x x%x\n",
1766 irsp->un.elsreq64.remoteID,
1767 irsp->ulpStatus, irsp->un.ulpWord[4],
1772 /* rrq completes to NPort <nlp_DID> */
1773 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1774 "2880 RRQ completes to NPort x%x "
1775 "Data: x%x x%x x%x x%x x%x\n",
1776 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1777 irsp->ulpTimeout, rrq->xritag, rrq->rxid);
1779 if (irsp->ulpStatus) {
1780 /* Check for retry */
1781 /* RRQ failed Don't print the vport to vport rjts */
1782 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1783 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1784 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1785 (phba)->pport->cfg_log_verbose & LOG_ELS)
1786 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1787 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1788 ndlp->nlp_DID, irsp->ulpStatus,
1789 irsp->un.ulpWord[4]);
1793 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1794 lpfc_els_free_iocb(phba, cmdiocb);
1798 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1799 * @phba: pointer to lpfc hba data structure.
1800 * @cmdiocb: pointer to lpfc command iocb data structure.
1801 * @rspiocb: pointer to lpfc response iocb data structure.
1803 * This routine is the completion callback function for issuing the Port
1804 * Login (PLOGI) command. For PLOGI completion, there must be an active
1805 * ndlp on the vport node list that matches the remote node ID from the
1806 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1807 * ignored and command IOCB released. The PLOGI response IOCB status is
1808 * checked for error conditons. If there is error status reported, PLOGI
1809 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1810 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1811 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1812 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1813 * there are additional N_Port nodes with the vport that need to perform
1814 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1818 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1819 struct lpfc_iocbq *rspiocb)
1821 struct lpfc_vport *vport = cmdiocb->vport;
1822 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1824 struct lpfc_nodelist *ndlp;
1825 struct lpfc_dmabuf *prsp;
1828 /* we pass cmdiocb to state machine which needs rspiocb as well */
1829 cmdiocb->context_un.rsp_iocb = rspiocb;
1831 irsp = &rspiocb->iocb;
1832 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1833 "PLOGI cmpl: status:x%x/x%x did:x%x",
1834 irsp->ulpStatus, irsp->un.ulpWord[4],
1835 irsp->un.elsreq64.remoteID);
1837 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1838 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
1839 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1840 "0136 PLOGI completes to NPort x%x "
1841 "with no ndlp. Data: x%x x%x x%x\n",
1842 irsp->un.elsreq64.remoteID,
1843 irsp->ulpStatus, irsp->un.ulpWord[4],
1848 /* Since ndlp can be freed in the disc state machine, note if this node
1849 * is being used during discovery.
1851 spin_lock_irq(shost->host_lock);
1852 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1853 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1854 spin_unlock_irq(shost->host_lock);
1857 /* PLOGI completes to NPort <nlp_DID> */
1858 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1859 "0102 PLOGI completes to NPort x%x "
1860 "Data: x%x x%x x%x x%x x%x\n",
1861 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1862 irsp->ulpTimeout, disc, vport->num_disc_nodes);
1863 /* Check to see if link went down during discovery */
1864 if (lpfc_els_chk_latt(vport)) {
1865 spin_lock_irq(shost->host_lock);
1866 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1867 spin_unlock_irq(shost->host_lock);
1871 if (irsp->ulpStatus) {
1872 /* Check for retry */
1873 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1874 /* ELS command is being retried */
1876 spin_lock_irq(shost->host_lock);
1877 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1878 spin_unlock_irq(shost->host_lock);
1882 /* PLOGI failed Don't print the vport to vport rjts */
1883 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1884 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1885 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1886 (phba)->pport->cfg_log_verbose & LOG_ELS)
1887 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1888 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1889 ndlp->nlp_DID, irsp->ulpStatus,
1890 irsp->un.ulpWord[4]);
1891 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1892 if (lpfc_error_lost_link(irsp))
1893 rc = NLP_STE_FREED_NODE;
1895 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1896 NLP_EVT_CMPL_PLOGI);
1898 /* Good status, call state machine */
1899 prsp = list_entry(((struct lpfc_dmabuf *)
1900 cmdiocb->context2)->list.next,
1901 struct lpfc_dmabuf, list);
1902 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
1903 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1904 NLP_EVT_CMPL_PLOGI);
1907 if (disc && vport->num_disc_nodes) {
1908 /* Check to see if there are more PLOGIs to be sent */
1909 lpfc_more_plogi(vport);
1911 if (vport->num_disc_nodes == 0) {
1912 spin_lock_irq(shost->host_lock);
1913 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1914 spin_unlock_irq(shost->host_lock);
1916 lpfc_can_disctmo(vport);
1917 lpfc_end_rscn(vport);
1922 lpfc_els_free_iocb(phba, cmdiocb);
1927 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1928 * @vport: pointer to a host virtual N_Port data structure.
1929 * @did: destination port identifier.
1930 * @retry: number of retries to the command IOCB.
1932 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1933 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1934 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1935 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1936 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1938 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1939 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1940 * will be stored into the context1 field of the IOCB for the completion
1941 * callback function to the PLOGI ELS command.
1944 * 0 - Successfully issued a plogi for @vport
1945 * 1 - failed to issue a plogi for @vport
1948 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
1950 struct lpfc_hba *phba = vport->phba;
1951 struct serv_parm *sp;
1952 struct lpfc_nodelist *ndlp;
1953 struct lpfc_iocbq *elsiocb;
1958 ndlp = lpfc_findnode_did(vport, did);
1959 if (ndlp && !NLP_CHK_NODE_ACT(ndlp))
1962 /* If ndlp is not NULL, we will bump the reference count on it */
1963 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1964 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
1969 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1971 /* For PLOGI request, remainder of payload is service parameters */
1972 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
1973 pcmd += sizeof(uint32_t);
1974 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1975 sp = (struct serv_parm *) pcmd;
1978 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1979 * to device on remote loops work.
1981 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
1982 sp->cmn.altBbCredit = 1;
1984 if (sp->cmn.fcphLow < FC_PH_4_3)
1985 sp->cmn.fcphLow = FC_PH_4_3;
1987 if (sp->cmn.fcphHigh < FC_PH3)
1988 sp->cmn.fcphHigh = FC_PH3;
1990 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1991 "Issue PLOGI: did:x%x",
1994 phba->fc_stat.elsXmitPLOGI++;
1995 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
1996 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
1998 if (ret == IOCB_ERROR) {
1999 lpfc_els_free_iocb(phba, elsiocb);
2006 * lpfc_cmpl_els_prli - Completion callback function for prli
2007 * @phba: pointer to lpfc hba data structure.
2008 * @cmdiocb: pointer to lpfc command iocb data structure.
2009 * @rspiocb: pointer to lpfc response iocb data structure.
2011 * This routine is the completion callback function for a Process Login
2012 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2013 * status. If there is error status reported, PRLI retry shall be attempted
2014 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2015 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2016 * ndlp to mark the PRLI completion.
2019 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2020 struct lpfc_iocbq *rspiocb)
2022 struct lpfc_vport *vport = cmdiocb->vport;
2023 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2025 struct lpfc_nodelist *ndlp;
2027 /* we pass cmdiocb to state machine which needs rspiocb as well */
2028 cmdiocb->context_un.rsp_iocb = rspiocb;
2030 irsp = &(rspiocb->iocb);
2031 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2032 spin_lock_irq(shost->host_lock);
2033 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2034 spin_unlock_irq(shost->host_lock);
2036 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2037 "PRLI cmpl: status:x%x/x%x did:x%x",
2038 irsp->ulpStatus, irsp->un.ulpWord[4],
2040 /* PRLI completes to NPort <nlp_DID> */
2041 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2042 "0103 PRLI completes to NPort x%x "
2043 "Data: x%x x%x x%x x%x\n",
2044 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2045 irsp->ulpTimeout, vport->num_disc_nodes);
2047 vport->fc_prli_sent--;
2048 /* Check to see if link went down during discovery */
2049 if (lpfc_els_chk_latt(vport))
2052 if (irsp->ulpStatus) {
2053 /* Check for retry */
2054 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2055 /* ELS command is being retried */
2059 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2060 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
2061 ndlp->nlp_DID, irsp->ulpStatus,
2062 irsp->un.ulpWord[4]);
2063 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2064 if (lpfc_error_lost_link(irsp))
2067 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2070 /* Good status, call state machine */
2071 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2074 lpfc_els_free_iocb(phba, cmdiocb);
2079 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2080 * @vport: pointer to a host virtual N_Port data structure.
2081 * @ndlp: pointer to a node-list data structure.
2082 * @retry: number of retries to the command IOCB.
2084 * This routine issues a Process Login (PRLI) ELS command for the
2085 * @vport. The PRLI service parameters are set up in the payload of the
2086 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2087 * is put to the IOCB completion callback func field before invoking the
2088 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2090 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2091 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2092 * will be stored into the context1 field of the IOCB for the completion
2093 * callback function to the PRLI ELS command.
2096 * 0 - successfully issued prli iocb command for @vport
2097 * 1 - failed to issue prli iocb command for @vport
2100 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2103 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2104 struct lpfc_hba *phba = vport->phba;
2106 struct lpfc_iocbq *elsiocb;
2110 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2111 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2112 ndlp->nlp_DID, ELS_CMD_PRLI);
2116 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2118 /* For PRLI request, remainder of payload is service parameters */
2119 memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t)));
2120 *((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
2121 pcmd += sizeof(uint32_t);
2123 /* For PRLI, remainder of payload is PRLI parameter page */
2124 npr = (PRLI *) pcmd;
2126 * If our firmware version is 3.20 or later,
2127 * set the following bits for FC-TAPE support.
2129 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2130 npr->ConfmComplAllowed = 1;
2132 npr->TaskRetryIdReq = 1;
2134 npr->estabImagePair = 1;
2135 npr->readXferRdyDis = 1;
2136 if (vport->cfg_first_burst_size)
2137 npr->writeXferRdyDis = 1;
2139 /* For FCP support */
2140 npr->prliType = PRLI_FCP_TYPE;
2141 npr->initiatorFunc = 1;
2143 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2144 "Issue PRLI: did:x%x",
2145 ndlp->nlp_DID, 0, 0);
2147 phba->fc_stat.elsXmitPRLI++;
2148 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
2149 spin_lock_irq(shost->host_lock);
2150 ndlp->nlp_flag |= NLP_PRLI_SND;
2151 spin_unlock_irq(shost->host_lock);
2152 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2154 spin_lock_irq(shost->host_lock);
2155 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2156 spin_unlock_irq(shost->host_lock);
2157 lpfc_els_free_iocb(phba, elsiocb);
2160 vport->fc_prli_sent++;
2165 * lpfc_rscn_disc - Perform rscn discovery for a vport
2166 * @vport: pointer to a host virtual N_Port data structure.
2168 * This routine performs Registration State Change Notification (RSCN)
2169 * discovery for a @vport. If the @vport's node port recovery count is not
2170 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2171 * the nodes that need recovery. If none of the PLOGI were needed through
2172 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2173 * invoked to check and handle possible more RSCN came in during the period
2174 * of processing the current ones.
2177 lpfc_rscn_disc(struct lpfc_vport *vport)
2179 lpfc_can_disctmo(vport);
2181 /* RSCN discovery */
2182 /* go thru NPR nodes and issue ELS PLOGIs */
2183 if (vport->fc_npr_cnt)
2184 if (lpfc_els_disc_plogi(vport))
2187 lpfc_end_rscn(vport);
2191 * lpfc_adisc_done - Complete the adisc phase of discovery
2192 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2194 * This function is called when the final ADISC is completed during discovery.
2195 * This function handles clearing link attention or issuing reg_vpi depending
2196 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2198 * This function is called with no locks held.
2201 lpfc_adisc_done(struct lpfc_vport *vport)
2203 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2204 struct lpfc_hba *phba = vport->phba;
2207 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2208 * and continue discovery.
2210 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2211 !(vport->fc_flag & FC_RSCN_MODE) &&
2212 (phba->sli_rev < LPFC_SLI_REV4)) {
2213 /* The ADISCs are complete. Doesn't matter if they
2214 * succeeded or failed because the ADISC completion
2215 * routine guarantees to call the state machine and
2216 * the RPI is either unregistered (failed ADISC response)
2217 * or the RPI is still valid and the node is marked
2218 * mapped for a target. The exchanges should be in the
2219 * correct state. This code is specific to SLI3.
2221 lpfc_issue_clear_la(phba, vport);
2222 lpfc_issue_reg_vpi(phba, vport);
2226 * For SLI2, we need to set port_state to READY
2227 * and continue discovery.
2229 if (vport->port_state < LPFC_VPORT_READY) {
2230 /* If we get here, there is nothing to ADISC */
2231 lpfc_issue_clear_la(phba, vport);
2232 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2233 vport->num_disc_nodes = 0;
2234 /* go thru NPR list, issue ELS PLOGIs */
2235 if (vport->fc_npr_cnt)
2236 lpfc_els_disc_plogi(vport);
2237 if (!vport->num_disc_nodes) {
2238 spin_lock_irq(shost->host_lock);
2239 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2240 spin_unlock_irq(shost->host_lock);
2241 lpfc_can_disctmo(vport);
2242 lpfc_end_rscn(vport);
2245 vport->port_state = LPFC_VPORT_READY;
2247 lpfc_rscn_disc(vport);
2251 * lpfc_more_adisc - Issue more adisc as needed
2252 * @vport: pointer to a host virtual N_Port data structure.
2254 * This routine determines whether there are more ndlps on a @vport
2255 * node list need to have Address Discover (ADISC) issued. If so, it will
2256 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2257 * remaining nodes which need to have ADISC sent.
2260 lpfc_more_adisc(struct lpfc_vport *vport)
2262 if (vport->num_disc_nodes)
2263 vport->num_disc_nodes--;
2264 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2265 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2266 "0210 Continue discovery with %d ADISCs to go "
2267 "Data: x%x x%x x%x\n",
2268 vport->num_disc_nodes, vport->fc_adisc_cnt,
2269 vport->fc_flag, vport->port_state);
2270 /* Check to see if there are more ADISCs to be sent */
2271 if (vport->fc_flag & FC_NLP_MORE) {
2272 lpfc_set_disctmo(vport);
2273 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2274 lpfc_els_disc_adisc(vport);
2276 if (!vport->num_disc_nodes)
2277 lpfc_adisc_done(vport);
2282 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2283 * @phba: pointer to lpfc hba data structure.
2284 * @cmdiocb: pointer to lpfc command iocb data structure.
2285 * @rspiocb: pointer to lpfc response iocb data structure.
2287 * This routine is the completion function for issuing the Address Discover
2288 * (ADISC) command. It first checks to see whether link went down during
2289 * the discovery process. If so, the node will be marked as node port
2290 * recovery for issuing discover IOCB by the link attention handler and
2291 * exit. Otherwise, the response status is checked. If error was reported
2292 * in the response status, the ADISC command shall be retried by invoking
2293 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2294 * the response status, the state machine is invoked to set transition
2295 * with respect to NLP_EVT_CMPL_ADISC event.
2298 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2299 struct lpfc_iocbq *rspiocb)
2301 struct lpfc_vport *vport = cmdiocb->vport;
2302 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2304 struct lpfc_nodelist *ndlp;
2307 /* we pass cmdiocb to state machine which needs rspiocb as well */
2308 cmdiocb->context_un.rsp_iocb = rspiocb;
2310 irsp = &(rspiocb->iocb);
2311 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2313 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2314 "ADISC cmpl: status:x%x/x%x did:x%x",
2315 irsp->ulpStatus, irsp->un.ulpWord[4],
2318 /* Since ndlp can be freed in the disc state machine, note if this node
2319 * is being used during discovery.
2321 spin_lock_irq(shost->host_lock);
2322 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2323 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2324 spin_unlock_irq(shost->host_lock);
2325 /* ADISC completes to NPort <nlp_DID> */
2326 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2327 "0104 ADISC completes to NPort x%x "
2328 "Data: x%x x%x x%x x%x x%x\n",
2329 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2330 irsp->ulpTimeout, disc, vport->num_disc_nodes);
2331 /* Check to see if link went down during discovery */
2332 if (lpfc_els_chk_latt(vport)) {
2333 spin_lock_irq(shost->host_lock);
2334 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2335 spin_unlock_irq(shost->host_lock);
2339 if (irsp->ulpStatus) {
2340 /* Check for retry */
2341 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2342 /* ELS command is being retried */
2344 spin_lock_irq(shost->host_lock);
2345 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2346 spin_unlock_irq(shost->host_lock);
2347 lpfc_set_disctmo(vport);
2352 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2353 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2354 ndlp->nlp_DID, irsp->ulpStatus,
2355 irsp->un.ulpWord[4]);
2356 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2357 if (!lpfc_error_lost_link(irsp))
2358 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2359 NLP_EVT_CMPL_ADISC);
2361 /* Good status, call state machine */
2362 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2363 NLP_EVT_CMPL_ADISC);
2365 /* Check to see if there are more ADISCs to be sent */
2366 if (disc && vport->num_disc_nodes)
2367 lpfc_more_adisc(vport);
2369 lpfc_els_free_iocb(phba, cmdiocb);
2374 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2375 * @vport: pointer to a virtual N_Port data structure.
2376 * @ndlp: pointer to a node-list data structure.
2377 * @retry: number of retries to the command IOCB.
2379 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2380 * @vport. It prepares the payload of the ADISC ELS command, updates the
2381 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2382 * to issue the ADISC ELS command.
2384 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2385 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2386 * will be stored into the context1 field of the IOCB for the completion
2387 * callback function to the ADISC ELS command.
2390 * 0 - successfully issued adisc
2391 * 1 - failed to issue adisc
2394 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2397 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2398 struct lpfc_hba *phba = vport->phba;
2400 struct lpfc_iocbq *elsiocb;
2404 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2405 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2406 ndlp->nlp_DID, ELS_CMD_ADISC);
2410 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2412 /* For ADISC request, remainder of payload is service parameters */
2413 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
2414 pcmd += sizeof(uint32_t);
2416 /* Fill in ADISC payload */
2417 ap = (ADISC *) pcmd;
2418 ap->hardAL_PA = phba->fc_pref_ALPA;
2419 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2420 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2421 ap->DID = be32_to_cpu(vport->fc_myDID);
2423 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2424 "Issue ADISC: did:x%x",
2425 ndlp->nlp_DID, 0, 0);
2427 phba->fc_stat.elsXmitADISC++;
2428 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
2429 spin_lock_irq(shost->host_lock);
2430 ndlp->nlp_flag |= NLP_ADISC_SND;
2431 spin_unlock_irq(shost->host_lock);
2432 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2434 spin_lock_irq(shost->host_lock);
2435 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2436 spin_unlock_irq(shost->host_lock);
2437 lpfc_els_free_iocb(phba, elsiocb);
2444 * lpfc_cmpl_els_logo - Completion callback function for logo
2445 * @phba: pointer to lpfc hba data structure.
2446 * @cmdiocb: pointer to lpfc command iocb data structure.
2447 * @rspiocb: pointer to lpfc response iocb data structure.
2449 * This routine is the completion function for issuing the ELS Logout (LOGO)
2450 * command. If no error status was reported from the LOGO response, the
2451 * state machine of the associated ndlp shall be invoked for transition with
2452 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2453 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2456 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2457 struct lpfc_iocbq *rspiocb)
2459 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2460 struct lpfc_vport *vport = ndlp->vport;
2461 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2463 struct lpfcMboxq *mbox;
2464 unsigned long flags;
2465 uint32_t skip_recovery = 0;
2467 /* we pass cmdiocb to state machine which needs rspiocb as well */
2468 cmdiocb->context_un.rsp_iocb = rspiocb;
2470 irsp = &(rspiocb->iocb);
2471 spin_lock_irq(shost->host_lock);
2472 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2473 spin_unlock_irq(shost->host_lock);
2475 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2476 "LOGO cmpl: status:x%x/x%x did:x%x",
2477 irsp->ulpStatus, irsp->un.ulpWord[4],
2480 /* LOGO completes to NPort <nlp_DID> */
2481 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2482 "0105 LOGO completes to NPort x%x "
2483 "Data: x%x x%x x%x x%x\n",
2484 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2485 irsp->ulpTimeout, vport->num_disc_nodes);
2487 if (lpfc_els_chk_latt(vport)) {
2492 /* Check to see if link went down during discovery */
2493 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
2494 /* NLP_EVT_DEVICE_RM should unregister the RPI
2495 * which should abort all outstanding IOs.
2497 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2503 if (irsp->ulpStatus) {
2504 /* Check for retry */
2505 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2506 /* ELS command is being retried */
2511 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2512 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2513 ndlp->nlp_DID, irsp->ulpStatus,
2514 irsp->un.ulpWord[4]);
2515 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2516 if (lpfc_error_lost_link(irsp)) {
2522 /* Call state machine. This will unregister the rpi if needed. */
2523 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
2526 lpfc_els_free_iocb(phba, cmdiocb);
2527 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2528 if ((vport->fc_flag & FC_PT2PT) &&
2529 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
2530 phba->pport->fc_myDID = 0;
2531 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2533 lpfc_config_link(phba, mbox);
2534 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2535 mbox->vport = vport;
2536 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
2538 mempool_free(mbox, phba->mbox_mem_pool);
2545 * If the node is a target, the handling attempts to recover the port.
2546 * For any other port type, the rpi is unregistered as an implicit
2549 if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
2550 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2551 spin_lock_irqsave(shost->host_lock, flags);
2552 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2553 spin_unlock_irqrestore(shost->host_lock, flags);
2555 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2556 "3187 LOGO completes to NPort x%x: Start "
2557 "Recovery Data: x%x x%x x%x x%x\n",
2558 ndlp->nlp_DID, irsp->ulpStatus,
2559 irsp->un.ulpWord[4], irsp->ulpTimeout,
2560 vport->num_disc_nodes);
2561 lpfc_disc_start(vport);
2567 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2568 * @vport: pointer to a virtual N_Port data structure.
2569 * @ndlp: pointer to a node-list data structure.
2570 * @retry: number of retries to the command IOCB.
2572 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2573 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2574 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2575 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2577 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2578 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2579 * will be stored into the context1 field of the IOCB for the completion
2580 * callback function to the LOGO ELS command.
2583 * 0 - successfully issued logo
2584 * 1 - failed to issue logo
2587 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2590 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2591 struct lpfc_hba *phba = vport->phba;
2592 struct lpfc_iocbq *elsiocb;
2597 spin_lock_irq(shost->host_lock);
2598 if (ndlp->nlp_flag & NLP_LOGO_SND) {
2599 spin_unlock_irq(shost->host_lock);
2602 spin_unlock_irq(shost->host_lock);
2604 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
2605 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2606 ndlp->nlp_DID, ELS_CMD_LOGO);
2610 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2611 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
2612 pcmd += sizeof(uint32_t);
2614 /* Fill in LOGO payload */
2615 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
2616 pcmd += sizeof(uint32_t);
2617 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
2619 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2620 "Issue LOGO: did:x%x",
2621 ndlp->nlp_DID, 0, 0);
2624 * If we are issuing a LOGO, we may try to recover the remote NPort
2625 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2626 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2627 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2628 * for that ELS cmd. To avoid this situation, lets get rid of the
2629 * RPI right now, before any ELS cmds are sent.
2631 spin_lock_irq(shost->host_lock);
2632 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
2633 spin_unlock_irq(shost->host_lock);
2634 if (lpfc_unreg_rpi(vport, ndlp)) {
2635 lpfc_els_free_iocb(phba, elsiocb);
2639 phba->fc_stat.elsXmitLOGO++;
2640 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
2641 spin_lock_irq(shost->host_lock);
2642 ndlp->nlp_flag |= NLP_LOGO_SND;
2643 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
2644 spin_unlock_irq(shost->host_lock);
2645 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2647 if (rc == IOCB_ERROR) {
2648 spin_lock_irq(shost->host_lock);
2649 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2650 spin_unlock_irq(shost->host_lock);
2651 lpfc_els_free_iocb(phba, elsiocb);
2658 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2659 * @phba: pointer to lpfc hba data structure.
2660 * @cmdiocb: pointer to lpfc command iocb data structure.
2661 * @rspiocb: pointer to lpfc response iocb data structure.
2663 * This routine is a generic completion callback function for ELS commands.
2664 * Specifically, it is the callback function which does not need to perform
2665 * any command specific operations. It is currently used by the ELS command
2666 * issuing routines for the ELS State Change Request (SCR),
2667 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2668 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2669 * certain debug loggings, this callback function simply invokes the
2670 * lpfc_els_chk_latt() routine to check whether link went down during the
2671 * discovery process.
2674 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2675 struct lpfc_iocbq *rspiocb)
2677 struct lpfc_vport *vport = cmdiocb->vport;
2680 irsp = &rspiocb->iocb;
2682 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2683 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2684 irsp->ulpStatus, irsp->un.ulpWord[4],
2685 irsp->un.elsreq64.remoteID);
2686 /* ELS cmd tag <ulpIoTag> completes */
2687 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2688 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2689 irsp->ulpIoTag, irsp->ulpStatus,
2690 irsp->un.ulpWord[4], irsp->ulpTimeout);
2691 /* Check to see if link went down during discovery */
2692 lpfc_els_chk_latt(vport);
2693 lpfc_els_free_iocb(phba, cmdiocb);
2698 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2699 * @vport: pointer to a host virtual N_Port data structure.
2700 * @nportid: N_Port identifier to the remote node.
2701 * @retry: number of retries to the command IOCB.
2703 * This routine issues a State Change Request (SCR) to a fabric node
2704 * on a @vport. The remote node @nportid is passed into the function. It
2705 * first search the @vport node list to find the matching ndlp. If no such
2706 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2707 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2708 * routine is invoked to send the SCR IOCB.
2710 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2711 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2712 * will be stored into the context1 field of the IOCB for the completion
2713 * callback function to the SCR ELS command.
2716 * 0 - Successfully issued scr command
2717 * 1 - Failed to issue scr command
2720 lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2722 struct lpfc_hba *phba = vport->phba;
2723 struct lpfc_iocbq *elsiocb;
2726 struct lpfc_nodelist *ndlp;
2728 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
2730 ndlp = lpfc_findnode_did(vport, nportid);
2732 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2735 lpfc_nlp_init(vport, ndlp, nportid);
2736 lpfc_enqueue_node(vport, ndlp);
2737 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2738 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2743 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2744 ndlp->nlp_DID, ELS_CMD_SCR);
2747 /* This will trigger the release of the node just
2754 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2756 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
2757 pcmd += sizeof(uint32_t);
2759 /* For SCR, remainder of payload is SCR parameter page */
2760 memset(pcmd, 0, sizeof(SCR));
2761 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
2763 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2764 "Issue SCR: did:x%x",
2765 ndlp->nlp_DID, 0, 0);
2767 phba->fc_stat.elsXmitSCR++;
2768 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2769 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2771 /* The additional lpfc_nlp_put will cause the following
2772 * lpfc_els_free_iocb routine to trigger the rlease of
2776 lpfc_els_free_iocb(phba, elsiocb);
2779 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2780 * trigger the release of node.
2788 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2789 * @vport: pointer to a host virtual N_Port data structure.
2790 * @nportid: N_Port identifier to the remote node.
2791 * @retry: number of retries to the command IOCB.
2793 * This routine issues a Fibre Channel Address Resolution Response
2794 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2795 * is passed into the function. It first search the @vport node list to find
2796 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2797 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2798 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2800 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2801 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2802 * will be stored into the context1 field of the IOCB for the completion
2803 * callback function to the PARPR ELS command.
2806 * 0 - Successfully issued farpr command
2807 * 1 - Failed to issue farpr command
2810 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2812 struct lpfc_hba *phba = vport->phba;
2813 struct lpfc_iocbq *elsiocb;
2818 struct lpfc_nodelist *ondlp;
2819 struct lpfc_nodelist *ndlp;
2821 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
2823 ndlp = lpfc_findnode_did(vport, nportid);
2825 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2828 lpfc_nlp_init(vport, ndlp, nportid);
2829 lpfc_enqueue_node(vport, ndlp);
2830 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2831 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2836 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2837 ndlp->nlp_DID, ELS_CMD_RNID);
2839 /* This will trigger the release of the node just
2846 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2848 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
2849 pcmd += sizeof(uint32_t);
2851 /* Fill in FARPR payload */
2852 fp = (FARP *) (pcmd);
2853 memset(fp, 0, sizeof(FARP));
2854 lp = (uint32_t *) pcmd;
2855 *lp++ = be32_to_cpu(nportid);
2856 *lp++ = be32_to_cpu(vport->fc_myDID);
2858 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
2860 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
2861 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2862 ondlp = lpfc_findnode_did(vport, nportid);
2863 if (ondlp && NLP_CHK_NODE_ACT(ondlp)) {
2864 memcpy(&fp->OportName, &ondlp->nlp_portname,
2865 sizeof(struct lpfc_name));
2866 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
2867 sizeof(struct lpfc_name));
2870 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2871 "Issue FARPR: did:x%x",
2872 ndlp->nlp_DID, 0, 0);
2874 phba->fc_stat.elsXmitFARPR++;
2875 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2876 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2878 /* The additional lpfc_nlp_put will cause the following
2879 * lpfc_els_free_iocb routine to trigger the release of
2883 lpfc_els_free_iocb(phba, elsiocb);
2886 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2887 * trigger the release of the node.
2894 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2895 * @vport: pointer to a host virtual N_Port data structure.
2896 * @nlp: pointer to a node-list data structure.
2898 * This routine cancels the timer with a delayed IOCB-command retry for
2899 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2900 * removes the ELS retry event if it presents. In addition, if the
2901 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2902 * commands are sent for the @vport's nodes that require issuing discovery
2906 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
2908 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2909 struct lpfc_work_evt *evtp;
2911 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
2913 spin_lock_irq(shost->host_lock);
2914 nlp->nlp_flag &= ~NLP_DELAY_TMO;
2915 spin_unlock_irq(shost->host_lock);
2916 del_timer_sync(&nlp->nlp_delayfunc);
2917 nlp->nlp_last_elscmd = 0;
2918 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
2919 list_del_init(&nlp->els_retry_evt.evt_listp);
2920 /* Decrement nlp reference count held for the delayed retry */
2921 evtp = &nlp->els_retry_evt;
2922 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
2924 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
2925 spin_lock_irq(shost->host_lock);
2926 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2927 spin_unlock_irq(shost->host_lock);
2928 if (vport->num_disc_nodes) {
2929 if (vport->port_state < LPFC_VPORT_READY) {
2930 /* Check if there are more ADISCs to be sent */
2931 lpfc_more_adisc(vport);
2933 /* Check if there are more PLOGIs to be sent */
2934 lpfc_more_plogi(vport);
2935 if (vport->num_disc_nodes == 0) {
2936 spin_lock_irq(shost->host_lock);
2937 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2938 spin_unlock_irq(shost->host_lock);
2939 lpfc_can_disctmo(vport);
2940 lpfc_end_rscn(vport);
2949 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2950 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2952 * This routine is invoked by the ndlp delayed-function timer to check
2953 * whether there is any pending ELS retry event(s) with the node. If not, it
2954 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2955 * adds the delayed events to the HBA work list and invokes the
2956 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2957 * event. Note that lpfc_nlp_get() is called before posting the event to
2958 * the work list to hold reference count of ndlp so that it guarantees the
2959 * reference to ndlp will still be available when the worker thread gets
2960 * to the event associated with the ndlp.
2963 lpfc_els_retry_delay(unsigned long ptr)
2965 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
2966 struct lpfc_vport *vport = ndlp->vport;
2967 struct lpfc_hba *phba = vport->phba;
2968 unsigned long flags;
2969 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
2971 spin_lock_irqsave(&phba->hbalock, flags);
2972 if (!list_empty(&evtp->evt_listp)) {
2973 spin_unlock_irqrestore(&phba->hbalock, flags);
2977 /* We need to hold the node by incrementing the reference
2978 * count until the queued work is done
2980 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
2981 if (evtp->evt_arg1) {
2982 evtp->evt = LPFC_EVT_ELS_RETRY;
2983 list_add_tail(&evtp->evt_listp, &phba->work_list);
2984 lpfc_worker_wake_up(phba);
2986 spin_unlock_irqrestore(&phba->hbalock, flags);
2991 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
2992 * @ndlp: pointer to a node-list data structure.
2994 * This routine is the worker-thread handler for processing the @ndlp delayed
2995 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
2996 * the last ELS command from the associated ndlp and invokes the proper ELS
2997 * function according to the delayed ELS command to retry the command.
3000 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
3002 struct lpfc_vport *vport = ndlp->vport;
3003 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3004 uint32_t cmd, retry;
3006 spin_lock_irq(shost->host_lock);
3007 cmd = ndlp->nlp_last_elscmd;
3008 ndlp->nlp_last_elscmd = 0;
3010 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
3011 spin_unlock_irq(shost->host_lock);
3015 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3016 spin_unlock_irq(shost->host_lock);
3018 * If a discovery event readded nlp_delayfunc after timer
3019 * firing and before processing the timer, cancel the
3022 del_timer_sync(&ndlp->nlp_delayfunc);
3023 retry = ndlp->nlp_retry;
3024 ndlp->nlp_retry = 0;
3028 lpfc_issue_els_flogi(vport, ndlp, retry);
3031 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
3032 ndlp->nlp_prev_state = ndlp->nlp_state;
3033 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
3037 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
3038 ndlp->nlp_prev_state = ndlp->nlp_state;
3039 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3043 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
3044 ndlp->nlp_prev_state = ndlp->nlp_state;
3045 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3049 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
3050 ndlp->nlp_prev_state = ndlp->nlp_state;
3051 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3055 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
3056 lpfc_issue_els_fdisc(vport, ndlp, retry);
3063 * lpfc_els_retry - Make retry decision on an els command iocb
3064 * @phba: pointer to lpfc hba data structure.
3065 * @cmdiocb: pointer to lpfc command iocb data structure.
3066 * @rspiocb: pointer to lpfc response iocb data structure.
3068 * This routine makes a retry decision on an ELS command IOCB, which has
3069 * failed. The following ELS IOCBs use this function for retrying the command
3070 * when previously issued command responsed with error status: FLOGI, PLOGI,
3071 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3072 * returned error status, it makes the decision whether a retry shall be
3073 * issued for the command, and whether a retry shall be made immediately or
3074 * delayed. In the former case, the corresponding ELS command issuing-function
3075 * is called to retry the command. In the later case, the ELS command shall
3076 * be posted to the ndlp delayed event and delayed function timer set to the
3077 * ndlp for the delayed command issusing.
3080 * 0 - No retry of els command is made
3081 * 1 - Immediate or delayed retry of els command is made
3084 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3085 struct lpfc_iocbq *rspiocb)
3087 struct lpfc_vport *vport = cmdiocb->vport;
3088 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3089 IOCB_t *irsp = &rspiocb->iocb;
3090 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3091 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3094 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
3100 /* Note: context2 may be 0 for internal driver abort
3101 * of delays ELS command.
3104 if (pcmd && pcmd->virt) {
3105 elscmd = (uint32_t *) (pcmd->virt);
3109 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
3110 did = ndlp->nlp_DID;
3112 /* We should only hit this case for retrying PLOGI */
3113 did = irsp->un.elsreq64.remoteID;
3114 ndlp = lpfc_findnode_did(vport, did);
3115 if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp))
3116 && (cmd != ELS_CMD_PLOGI))
3120 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3121 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3122 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
3124 switch (irsp->ulpStatus) {
3125 case IOSTAT_FCP_RSP_ERROR:
3127 case IOSTAT_REMOTE_STOP:
3128 if (phba->sli_rev == LPFC_SLI_REV4) {
3129 /* This IO was aborted by the target, we don't
3130 * know the rxid and because we did not send the
3131 * ABTS we cannot generate and RRQ.
3133 lpfc_set_rrq_active(phba, ndlp,
3134 cmdiocb->sli4_lxritag, 0, 0);
3137 case IOSTAT_LOCAL_REJECT:
3138 switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
3139 case IOERR_LOOP_OPEN_FAILURE:
3140 if (cmd == ELS_CMD_FLOGI) {
3141 if (PCI_DEVICE_ID_HORNET ==
3142 phba->pcidev->device) {
3143 phba->fc_topology = LPFC_TOPOLOGY_LOOP;
3144 phba->pport->fc_myDID = 0;
3145 phba->alpa_map[0] = 0;
3146 phba->alpa_map[1] = 0;
3149 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
3154 case IOERR_ILLEGAL_COMMAND:
3155 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3156 "0124 Retry illegal cmd x%x "
3157 "retry:x%x delay:x%x\n",
3158 cmd, cmdiocb->retry, delay);
3160 /* All command's retry policy */
3162 if (cmdiocb->retry > 2)
3166 case IOERR_NO_RESOURCES:
3167 logerr = 1; /* HBA out of resources */
3169 if (cmdiocb->retry > 100)
3174 case IOERR_ILLEGAL_FRAME:
3179 case IOERR_SEQUENCE_TIMEOUT:
3180 case IOERR_INVALID_RPI:
3181 if (cmd == ELS_CMD_PLOGI &&
3182 did == NameServer_DID) {
3183 /* Continue forever if plogi to */
3184 /* the nameserver fails */
3193 case IOSTAT_NPORT_RJT:
3194 case IOSTAT_FABRIC_RJT:
3195 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
3201 case IOSTAT_NPORT_BSY:
3202 case IOSTAT_FABRIC_BSY:
3203 logerr = 1; /* Fabric / Remote NPort out of resources */
3208 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
3209 /* Added for Vendor specifc support
3210 * Just keep retrying for these Rsn / Exp codes
3212 switch (stat.un.b.lsRjtRsnCode) {
3213 case LSRJT_UNABLE_TPC:
3214 if (stat.un.b.lsRjtRsnCodeExp ==
3215 LSEXP_CMD_IN_PROGRESS) {
3216 if (cmd == ELS_CMD_PLOGI) {
3223 if (stat.un.b.lsRjtRsnCodeExp ==
3224 LSEXP_CANT_GIVE_DATA) {
3225 if (cmd == ELS_CMD_PLOGI) {
3232 if ((cmd == ELS_CMD_PLOGI) ||
3233 (cmd == ELS_CMD_PRLI)) {
3235 maxretry = lpfc_max_els_tries + 1;
3239 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3240 (cmd == ELS_CMD_FDISC) &&
3241 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
3242 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3243 "0125 FDISC Failed (x%x). "
3244 "Fabric out of resources\n",
3245 stat.un.lsRjtError);
3246 lpfc_vport_set_state(vport,
3247 FC_VPORT_NO_FABRIC_RSCS);
3251 case LSRJT_LOGICAL_BSY:
3252 if ((cmd == ELS_CMD_PLOGI) ||
3253 (cmd == ELS_CMD_PRLI)) {
3256 } else if (cmd == ELS_CMD_FDISC) {
3257 /* FDISC retry policy */
3259 if (cmdiocb->retry >= 32)
3265 case LSRJT_LOGICAL_ERR:
3266 /* There are some cases where switches return this
3267 * error when they are not ready and should be returning
3268 * Logical Busy. We should delay every time.
3270 if (cmd == ELS_CMD_FDISC &&
3271 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
3277 case LSRJT_PROTOCOL_ERR:
3278 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3279 (cmd == ELS_CMD_FDISC) &&
3280 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
3281 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
3283 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3284 "0122 FDISC Failed (x%x). "
3285 "Fabric Detected Bad WWN\n",
3286 stat.un.lsRjtError);
3287 lpfc_vport_set_state(vport,
3288 FC_VPORT_FABRIC_REJ_WWN);
3294 case IOSTAT_INTERMED_RSP:
3302 if (did == FDMI_DID)
3305 if ((cmd == ELS_CMD_FLOGI) &&
3306 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
3307 !lpfc_error_lost_link(irsp)) {
3308 /* FLOGI retry policy */
3310 /* retry FLOGI forever */
3311 if (phba->link_flag != LS_LOOPBACK_MODE)
3316 if (cmdiocb->retry >= 100)
3318 else if (cmdiocb->retry >= 32)
3320 } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
3321 /* retry FDISCs every second up to devloss */
3323 maxretry = vport->cfg_devloss_tmo;
3328 if (maxretry && (cmdiocb->retry >= maxretry)) {
3329 phba->fc_stat.elsRetryExceeded++;
3333 if ((vport->load_flag & FC_UNLOADING) != 0)
3337 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
3338 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3339 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3340 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3341 "2849 Stop retry ELS command "
3342 "x%x to remote NPORT x%x, "
3343 "Data: x%x x%x\n", cmd, did,
3344 cmdiocb->retry, delay);
3349 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3350 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3351 "0107 Retry ELS command x%x to remote "
3352 "NPORT x%x Data: x%x x%x\n",
3353 cmd, did, cmdiocb->retry, delay);
3355 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
3356 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
3357 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
3358 IOERR_NO_RESOURCES))) {
3359 /* Don't reset timer for no resources */
3361 /* If discovery / RSCN timer is running, reset it */
3362 if (timer_pending(&vport->fc_disctmo) ||
3363 (vport->fc_flag & FC_RSCN_MODE))
3364 lpfc_set_disctmo(vport);
3367 phba->fc_stat.elsXmitRetry++;
3368 if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
3369 phba->fc_stat.elsDelayRetry++;
3370 ndlp->nlp_retry = cmdiocb->retry;
3372 /* delay is specified in milliseconds */
3373 mod_timer(&ndlp->nlp_delayfunc,
3374 jiffies + msecs_to_jiffies(delay));
3375 spin_lock_irq(shost->host_lock);
3376 ndlp->nlp_flag |= NLP_DELAY_TMO;
3377 spin_unlock_irq(shost->host_lock);
3379 ndlp->nlp_prev_state = ndlp->nlp_state;
3380 if (cmd == ELS_CMD_PRLI)
3381 lpfc_nlp_set_state(vport, ndlp,
3382 NLP_STE_PRLI_ISSUE);
3384 lpfc_nlp_set_state(vport, ndlp,
3386 ndlp->nlp_last_elscmd = cmd;
3392 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
3395 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
3398 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3399 ndlp->nlp_prev_state = ndlp->nlp_state;
3400 lpfc_nlp_set_state(vport, ndlp,
3401 NLP_STE_PLOGI_ISSUE);
3403 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
3406 ndlp->nlp_prev_state = ndlp->nlp_state;
3407 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3408 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
3411 ndlp->nlp_prev_state = ndlp->nlp_state;
3412 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3413 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
3416 ndlp->nlp_prev_state = ndlp->nlp_state;
3417 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3418 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
3422 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3424 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3425 "0137 No retry ELS command x%x to remote "
3426 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3427 cmd, did, irsp->ulpStatus,
3428 irsp->un.ulpWord[4]);
3431 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3432 "0108 No retry ELS command x%x to remote "
3433 "NPORT x%x Retried:%d Error:x%x/%x\n",
3434 cmd, did, cmdiocb->retry, irsp->ulpStatus,
3435 irsp->un.ulpWord[4]);
3441 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3442 * @phba: pointer to lpfc hba data structure.
3443 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3445 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3446 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3447 * checks to see whether there is a lpfc DMA buffer associated with the
3448 * response of the command IOCB. If so, it will be released before releasing
3449 * the lpfc DMA buffer associated with the IOCB itself.
3452 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3455 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
3457 struct lpfc_dmabuf *buf_ptr;
3459 /* Free the response before processing the command. */
3460 if (!list_empty(&buf_ptr1->list)) {
3461 list_remove_head(&buf_ptr1->list, buf_ptr,
3464 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3467 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
3473 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3474 * @phba: pointer to lpfc hba data structure.
3475 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3477 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3478 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3482 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3485 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
3487 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3493 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3494 * @phba: pointer to lpfc hba data structure.
3495 * @elsiocb: pointer to lpfc els command iocb data structure.
3497 * This routine frees a command IOCB and its associated resources. The
3498 * command IOCB data structure contains the reference to various associated
3499 * resources, these fields must be set to NULL if the associated reference
3501 * context1 - reference to ndlp
3502 * context2 - reference to cmd
3503 * context2->next - reference to rsp
3504 * context3 - reference to bpl
3506 * It first properly decrements the reference count held on ndlp for the
3507 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3508 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3509 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3510 * adds the DMA buffer the @phba data structure for the delayed release.
3511 * If reference to the Buffer Pointer List (BPL) is present, the
3512 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3513 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3514 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3517 * 0 - Success (currently, always return 0)
3520 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
3522 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
3523 struct lpfc_nodelist *ndlp;
3525 ndlp = (struct lpfc_nodelist *)elsiocb->context1;
3527 if (ndlp->nlp_flag & NLP_DEFER_RM) {
3530 /* If the ndlp is not being used by another discovery
3533 if (!lpfc_nlp_not_used(ndlp)) {
3534 /* If ndlp is being used by another discovery
3535 * thread, just clear NLP_DEFER_RM
3537 ndlp->nlp_flag &= ~NLP_DEFER_RM;
3542 elsiocb->context1 = NULL;
3544 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3545 if (elsiocb->context2) {
3546 if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
3547 /* Firmware could still be in progress of DMAing
3548 * payload, so don't free data buffer till after
3551 elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
3552 buf_ptr = elsiocb->context2;
3553 elsiocb->context2 = NULL;
3556 spin_lock_irq(&phba->hbalock);
3557 if (!list_empty(&buf_ptr->list)) {
3558 list_remove_head(&buf_ptr->list,
3559 buf_ptr1, struct lpfc_dmabuf,
3561 INIT_LIST_HEAD(&buf_ptr1->list);
3562 list_add_tail(&buf_ptr1->list,
3566 INIT_LIST_HEAD(&buf_ptr->list);
3567 list_add_tail(&buf_ptr->list, &phba->elsbuf);
3569 spin_unlock_irq(&phba->hbalock);
3572 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
3573 lpfc_els_free_data(phba, buf_ptr1);
3577 if (elsiocb->context3) {
3578 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
3579 lpfc_els_free_bpl(phba, buf_ptr);
3581 lpfc_sli_release_iocbq(phba, elsiocb);
3586 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3587 * @phba: pointer to lpfc hba data structure.
3588 * @cmdiocb: pointer to lpfc command iocb data structure.
3589 * @rspiocb: pointer to lpfc response iocb data structure.
3591 * This routine is the completion callback function to the Logout (LOGO)
3592 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3593 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3594 * release the ndlp if it has the last reference remaining (reference count
3595 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3596 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3597 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3598 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3599 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3600 * IOCB data structure.
3603 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3604 struct lpfc_iocbq *rspiocb)
3606 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3607 struct lpfc_vport *vport = cmdiocb->vport;
3610 irsp = &rspiocb->iocb;
3611 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3612 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3613 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
3614 /* ACC to LOGO completes to NPort <nlp_DID> */
3615 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3616 "0109 ACC to LOGO completes to NPort x%x "
3617 "Data: x%x x%x x%x\n",
3618 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3621 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
3622 /* NPort Recovery mode or node is just allocated */
3623 if (!lpfc_nlp_not_used(ndlp)) {
3624 /* If the ndlp is being used by another discovery
3625 * thread, just unregister the RPI.
3627 lpfc_unreg_rpi(vport, ndlp);
3629 /* Indicate the node has already released, should
3630 * not reference to it from within lpfc_els_free_iocb.
3632 cmdiocb->context1 = NULL;
3637 * The driver received a LOGO from the rport and has ACK'd it.
3638 * At this point, the driver is done so release the IOCB
3640 lpfc_els_free_iocb(phba, cmdiocb);
3644 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3645 * @phba: pointer to lpfc hba data structure.
3646 * @pmb: pointer to the driver internal queue element for mailbox command.
3648 * This routine is the completion callback function for unregister default
3649 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3650 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3651 * decrements the ndlp reference count held for this completion callback
3652 * function. After that, it invokes the lpfc_nlp_not_used() to check
3653 * whether there is only one reference left on the ndlp. If so, it will
3654 * perform one more decrement and trigger the release of the ndlp.
3657 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3659 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3660 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3662 pmb->context1 = NULL;
3663 pmb->context2 = NULL;
3665 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3667 mempool_free(pmb, phba->mbox_mem_pool);
3669 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3670 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3671 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3672 atomic_read(&ndlp->kref.refcount),
3673 ndlp->nlp_usg_map, ndlp);
3674 if (NLP_CHK_NODE_ACT(ndlp)) {
3676 /* This is the end of the default RPI cleanup logic for
3677 * this ndlp. If no other discovery threads are using
3678 * this ndlp, free all resources associated with it.
3680 lpfc_nlp_not_used(ndlp);
3682 lpfc_drop_node(ndlp->vport, ndlp);
3690 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3691 * @phba: pointer to lpfc hba data structure.
3692 * @cmdiocb: pointer to lpfc command iocb data structure.
3693 * @rspiocb: pointer to lpfc response iocb data structure.
3695 * This routine is the completion callback function for ELS Response IOCB
3696 * command. In normal case, this callback function just properly sets the
3697 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3698 * field in the command IOCB is not NULL, the referred mailbox command will
3699 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3700 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3701 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3702 * routine shall be invoked trying to release the ndlp if no other threads
3703 * are currently referring it.
3706 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3707 struct lpfc_iocbq *rspiocb)
3709 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3710 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
3711 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
3714 LPFC_MBOXQ_t *mbox = NULL;
3715 struct lpfc_dmabuf *mp = NULL;
3716 uint32_t ls_rjt = 0;
3718 irsp = &rspiocb->iocb;
3720 if (cmdiocb->context_un.mbox)
3721 mbox = cmdiocb->context_un.mbox;
3723 /* First determine if this is a LS_RJT cmpl. Note, this callback
3724 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3726 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
3727 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3728 (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
3729 /* A LS_RJT associated with Default RPI cleanup has its own
3730 * separate code path.
3732 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3736 /* Check to see if link went down during discovery */
3737 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
3739 mp = (struct lpfc_dmabuf *) mbox->context1;
3741 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3744 mempool_free(mbox, phba->mbox_mem_pool);
3746 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3747 (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3748 if (lpfc_nlp_not_used(ndlp)) {
3750 /* Indicate the node has already released,
3751 * should not reference to it from within
3752 * the routine lpfc_els_free_iocb.
3754 cmdiocb->context1 = NULL;
3759 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3760 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3761 irsp->ulpStatus, irsp->un.ulpWord[4],
3762 cmdiocb->iocb.un.elsreq64.remoteID);
3763 /* ELS response tag <ulpIoTag> completes */
3764 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3765 "0110 ELS response tag x%x completes "
3766 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3767 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
3768 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
3769 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3772 if ((rspiocb->iocb.ulpStatus == 0)
3773 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
3774 lpfc_unreg_rpi(vport, ndlp);
3775 /* Increment reference count to ndlp to hold the
3776 * reference to ndlp for the callback function.
3778 mbox->context2 = lpfc_nlp_get(ndlp);
3779 mbox->vport = vport;
3780 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
3781 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3782 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3785 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
3786 ndlp->nlp_prev_state = ndlp->nlp_state;
3787 lpfc_nlp_set_state(vport, ndlp,
3788 NLP_STE_REG_LOGIN_ISSUE);
3790 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
3791 != MBX_NOT_FINISHED)
3794 /* Decrement the ndlp reference count we
3795 * set for this failed mailbox command.
3799 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3800 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3801 "0138 ELS rsp: Cannot issue reg_login for x%x "
3802 "Data: x%x x%x x%x\n",
3803 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3806 if (lpfc_nlp_not_used(ndlp)) {
3808 /* Indicate node has already been released,
3809 * should not reference to it from within
3810 * the routine lpfc_els_free_iocb.
3812 cmdiocb->context1 = NULL;
3815 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3816 if (!lpfc_error_lost_link(irsp) &&
3817 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
3818 if (lpfc_nlp_not_used(ndlp)) {
3820 /* Indicate node has already been
3821 * released, should not reference
3822 * to it from within the routine
3823 * lpfc_els_free_iocb.
3825 cmdiocb->context1 = NULL;
3829 mp = (struct lpfc_dmabuf *) mbox->context1;
3831 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3834 mempool_free(mbox, phba->mbox_mem_pool);
3837 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3838 spin_lock_irq(shost->host_lock);
3839 ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
3840 spin_unlock_irq(shost->host_lock);
3842 /* If the node is not being used by another discovery thread,
3843 * and we are sending a reject, we are done with it.
3844 * Release driver reference count here and free associated
3848 if (lpfc_nlp_not_used(ndlp))
3849 /* Indicate node has already been released,
3850 * should not reference to it from within
3851 * the routine lpfc_els_free_iocb.
3853 cmdiocb->context1 = NULL;
3856 lpfc_els_free_iocb(phba, cmdiocb);
3861 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3862 * @vport: pointer to a host virtual N_Port data structure.
3863 * @flag: the els command code to be accepted.
3864 * @oldiocb: pointer to the original lpfc command iocb data structure.
3865 * @ndlp: pointer to a node-list data structure.
3866 * @mbox: pointer to the driver internal queue element for mailbox command.
3868 * This routine prepares and issues an Accept (ACC) response IOCB
3869 * command. It uses the @flag to properly set up the IOCB field for the
3870 * specific ACC response command to be issued and invokes the
3871 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3872 * @mbox pointer is passed in, it will be put into the context_un.mbox
3873 * field of the IOCB for the completion callback function to issue the
3874 * mailbox command to the HBA later when callback is invoked.
3876 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3877 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3878 * will be stored into the context1 field of the IOCB for the completion
3879 * callback function to the corresponding response ELS IOCB command.
3882 * 0 - Successfully issued acc response
3883 * 1 - Failed to issue acc response
3886 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
3887 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
3890 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3891 struct lpfc_hba *phba = vport->phba;
3894 struct lpfc_iocbq *elsiocb;
3898 ELS_PKT *els_pkt_ptr;
3900 oldcmd = &oldiocb->iocb;
3904 cmdsize = sizeof(uint32_t);
3905 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3906 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3908 spin_lock_irq(shost->host_lock);
3909 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
3910 spin_unlock_irq(shost->host_lock);
3914 icmd = &elsiocb->iocb;
3915 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3916 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3917 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3918 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3919 pcmd += sizeof(uint32_t);
3921 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3922 "Issue ACC: did:x%x flg:x%x",
3923 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3926 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
3927 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3928 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3932 icmd = &elsiocb->iocb;
3933 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3934 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3935 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3938 elsiocb->context_un.mbox = mbox;
3940 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3941 pcmd += sizeof(uint32_t);
3942 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
3944 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3945 "Issue ACC PLOGI: did:x%x flg:x%x",
3946 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3949 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
3950 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3951 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
3955 icmd = &elsiocb->iocb;
3956 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3957 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3958 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3960 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
3961 sizeof(uint32_t) + sizeof(PRLO));
3962 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
3963 els_pkt_ptr = (ELS_PKT *) pcmd;
3964 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
3966 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3967 "Issue ACC PRLO: did:x%x flg:x%x",
3968 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3973 /* Xmit ELS ACC response tag <ulpIoTag> */
3974 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3975 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
3976 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
3978 elsiocb->iotag, elsiocb->iocb.ulpContext,
3979 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3980 ndlp->nlp_rpi, vport->fc_flag);
3981 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
3982 spin_lock_irq(shost->host_lock);
3983 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
3984 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
3985 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
3986 spin_unlock_irq(shost->host_lock);
3987 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
3989 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
3992 phba->fc_stat.elsXmitACC++;
3993 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3994 if (rc == IOCB_ERROR) {
3995 lpfc_els_free_iocb(phba, elsiocb);
4002 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4003 * @vport: pointer to a virtual N_Port data structure.
4005 * @oldiocb: pointer to the original lpfc command iocb data structure.
4006 * @ndlp: pointer to a node-list data structure.
4007 * @mbox: pointer to the driver internal queue element for mailbox command.
4009 * This routine prepares and issue an Reject (RJT) response IOCB
4010 * command. If a @mbox pointer is passed in, it will be put into the
4011 * context_un.mbox field of the IOCB for the completion callback function
4012 * to issue to the HBA later.
4014 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4015 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4016 * will be stored into the context1 field of the IOCB for the completion
4017 * callback function to the reject response ELS IOCB command.
4020 * 0 - Successfully issued reject response
4021 * 1 - Failed to issue reject response
4024 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
4025 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4028 struct lpfc_hba *phba = vport->phba;
4031 struct lpfc_iocbq *elsiocb;
4036 cmdsize = 2 * sizeof(uint32_t);
4037 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4038 ndlp->nlp_DID, ELS_CMD_LS_RJT);
4042 icmd = &elsiocb->iocb;
4043 oldcmd = &oldiocb->iocb;
4044 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4045 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4046 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4048 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4049 pcmd += sizeof(uint32_t);
4050 *((uint32_t *) (pcmd)) = rejectError;
4053 elsiocb->context_un.mbox = mbox;
4055 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4056 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4057 "0129 Xmit ELS RJT x%x response tag x%x "
4058 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4060 rejectError, elsiocb->iotag,
4061 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4062 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
4063 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4064 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4065 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4067 phba->fc_stat.elsXmitLSRJT++;
4068 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4069 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4071 if (rc == IOCB_ERROR) {
4072 lpfc_els_free_iocb(phba, elsiocb);
4079 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4080 * @vport: pointer to a virtual N_Port data structure.
4081 * @oldiocb: pointer to the original lpfc command iocb data structure.
4082 * @ndlp: pointer to a node-list data structure.
4084 * This routine prepares and issues an Accept (ACC) response to Address
4085 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4086 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4088 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4089 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4090 * will be stored into the context1 field of the IOCB for the completion
4091 * callback function to the ADISC Accept response ELS IOCB command.
4094 * 0 - Successfully issued acc adisc response
4095 * 1 - Failed to issue adisc acc response
4098 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4099 struct lpfc_nodelist *ndlp)
4101 struct lpfc_hba *phba = vport->phba;
4103 IOCB_t *icmd, *oldcmd;
4104 struct lpfc_iocbq *elsiocb;
4109 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
4110 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4111 ndlp->nlp_DID, ELS_CMD_ACC);
4115 icmd = &elsiocb->iocb;
4116 oldcmd = &oldiocb->iocb;
4117 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4118 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4120 /* Xmit ADISC ACC response tag <ulpIoTag> */
4121 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4122 "0130 Xmit ADISC ACC response iotag x%x xri: "
4123 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4124 elsiocb->iotag, elsiocb->iocb.ulpContext,
4125 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4127 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4129 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4130 pcmd += sizeof(uint32_t);
4132 ap = (ADISC *) (pcmd);
4133 ap->hardAL_PA = phba->fc_pref_ALPA;
4134 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4135 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4136 ap->DID = be32_to_cpu(vport->fc_myDID);
4138 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4139 "Issue ACC ADISC: did:x%x flg:x%x",
4140 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4142 phba->fc_stat.elsXmitACC++;
4143 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4144 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4145 if (rc == IOCB_ERROR) {
4146 lpfc_els_free_iocb(phba, elsiocb);
4153 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4154 * @vport: pointer to a virtual N_Port data structure.
4155 * @oldiocb: pointer to the original lpfc command iocb data structure.
4156 * @ndlp: pointer to a node-list data structure.
4158 * This routine prepares and issues an Accept (ACC) response to Process
4159 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4160 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4162 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4163 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4164 * will be stored into the context1 field of the IOCB for the completion
4165 * callback function to the PRLI Accept response ELS IOCB command.
4168 * 0 - Successfully issued acc prli response
4169 * 1 - Failed to issue acc prli response
4172 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4173 struct lpfc_nodelist *ndlp)
4175 struct lpfc_hba *phba = vport->phba;
4180 struct lpfc_iocbq *elsiocb;
4185 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
4186 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4187 ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
4191 icmd = &elsiocb->iocb;
4192 oldcmd = &oldiocb->iocb;
4193 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4194 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4196 /* Xmit PRLI ACC response tag <ulpIoTag> */
4197 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4198 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4199 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4200 elsiocb->iotag, elsiocb->iocb.ulpContext,
4201 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4203 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4205 *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
4206 pcmd += sizeof(uint32_t);
4208 /* For PRLI, remainder of payload is PRLI parameter page */
4209 memset(pcmd, 0, sizeof(PRLI));
4211 npr = (PRLI *) pcmd;
4214 * If the remote port is a target and our firmware version is 3.20 or
4215 * later, set the following bits for FC-TAPE support.
4217 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4218 (vpd->rev.feaLevelHigh >= 0x02)) {
4219 npr->ConfmComplAllowed = 1;
4221 npr->TaskRetryIdReq = 1;
4224 npr->acceptRspCode = PRLI_REQ_EXECUTED;
4225 npr->estabImagePair = 1;
4226 npr->readXferRdyDis = 1;
4227 npr->ConfmComplAllowed = 1;
4229 npr->prliType = PRLI_FCP_TYPE;
4230 npr->initiatorFunc = 1;
4232 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4233 "Issue ACC PRLI: did:x%x flg:x%x",
4234 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4236 phba->fc_stat.elsXmitACC++;
4237 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4239 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4240 if (rc == IOCB_ERROR) {
4241 lpfc_els_free_iocb(phba, elsiocb);
4248 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4249 * @vport: pointer to a virtual N_Port data structure.
4250 * @format: rnid command format.
4251 * @oldiocb: pointer to the original lpfc command iocb data structure.
4252 * @ndlp: pointer to a node-list data structure.
4254 * This routine issues a Request Node Identification Data (RNID) Accept
4255 * (ACC) response. It constructs the RNID ACC response command according to
4256 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4257 * issue the response. Note that this command does not need to hold the ndlp
4258 * reference count for the callback. So, the ndlp reference count taken by
4259 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4260 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4261 * there is no ndlp reference available.
4263 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4264 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4265 * will be stored into the context1 field of the IOCB for the completion
4266 * callback function. However, for the RNID Accept Response ELS command,
4267 * this is undone later by this routine after the IOCB is allocated.
4270 * 0 - Successfully issued acc rnid response
4271 * 1 - Failed to issue acc rnid response
4274 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
4275 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4277 struct lpfc_hba *phba = vport->phba;
4279 IOCB_t *icmd, *oldcmd;
4280 struct lpfc_iocbq *elsiocb;
4285 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
4286 + (2 * sizeof(struct lpfc_name));
4288 cmdsize += sizeof(RNID_TOP_DISC);
4290 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4291 ndlp->nlp_DID, ELS_CMD_ACC);
4295 icmd = &elsiocb->iocb;
4296 oldcmd = &oldiocb->iocb;
4297 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4298 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4300 /* Xmit RNID ACC response tag <ulpIoTag> */
4301 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4302 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4303 elsiocb->iotag, elsiocb->iocb.ulpContext);
4304 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4305 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4306 pcmd += sizeof(uint32_t);
4308 memset(pcmd, 0, sizeof(RNID));
4309 rn = (RNID *) (pcmd);
4310 rn->Format = format;
4311 rn->CommonLen = (2 * sizeof(struct lpfc_name));
4312 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4313 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4316 rn->SpecificLen = 0;
4318 case RNID_TOPOLOGY_DISC:
4319 rn->SpecificLen = sizeof(RNID_TOP_DISC);
4320 memcpy(&rn->un.topologyDisc.portName,
4321 &vport->fc_portname, sizeof(struct lpfc_name));
4322 rn->un.topologyDisc.unitType = RNID_HBA;
4323 rn->un.topologyDisc.physPort = 0;
4324 rn->un.topologyDisc.attachedNodes = 0;
4328 rn->SpecificLen = 0;
4332 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4333 "Issue ACC RNID: did:x%x flg:x%x",
4334 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4336 phba->fc_stat.elsXmitACC++;
4337 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4339 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4340 if (rc == IOCB_ERROR) {
4341 lpfc_els_free_iocb(phba, elsiocb);
4348 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4349 * @vport: pointer to a virtual N_Port data structure.
4350 * @iocb: pointer to the lpfc command iocb data structure.
4351 * @ndlp: pointer to a node-list data structure.
4356 lpfc_els_clear_rrq(struct lpfc_vport *vport,
4357 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
4359 struct lpfc_hba *phba = vport->phba;
4364 struct lpfc_node_rrq *prrq;
4367 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
4368 pcmd += sizeof(uint32_t);
4369 rrq = (struct RRQ *)pcmd;
4370 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
4371 rxid = bf_get(rrq_rxid, rrq);
4373 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4374 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4376 be32_to_cpu(bf_get(rrq_did, rrq)),
4377 bf_get(rrq_oxid, rrq),
4379 iocb->iotag, iocb->iocb.ulpContext);
4381 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4382 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4383 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
4384 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
4385 xri = bf_get(rrq_oxid, rrq);
4388 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
4390 lpfc_clr_rrq_active(phba, xri, prrq);
4395 * lpfc_els_rsp_echo_acc - Issue echo acc response
4396 * @vport: pointer to a virtual N_Port data structure.
4397 * @data: pointer to echo data to return in the accept.
4398 * @oldiocb: pointer to the original lpfc command iocb data structure.
4399 * @ndlp: pointer to a node-list data structure.
4402 * 0 - Successfully issued acc echo response
4403 * 1 - Failed to issue acc echo response
4406 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
4407 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4409 struct lpfc_hba *phba = vport->phba;
4410 struct lpfc_iocbq *elsiocb;
4415 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
4417 /* The accumulated length can exceed the BPL_SIZE. For
4418 * now, use this as the limit
4420 if (cmdsize > LPFC_BPL_SIZE)
4421 cmdsize = LPFC_BPL_SIZE;
4422 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4423 ndlp->nlp_DID, ELS_CMD_ACC);
4427 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
4428 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
4430 /* Xmit ECHO ACC response tag <ulpIoTag> */
4431 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4432 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4433 elsiocb->iotag, elsiocb->iocb.ulpContext);
4434 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4435 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4436 pcmd += sizeof(uint32_t);
4437 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
4439 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4440 "Issue ACC ECHO: did:x%x flg:x%x",
4441 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4443 phba->fc_stat.elsXmitACC++;
4444 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4446 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4447 if (rc == IOCB_ERROR) {
4448 lpfc_els_free_iocb(phba, elsiocb);
4455 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4456 * @vport: pointer to a host virtual N_Port data structure.
4458 * This routine issues Address Discover (ADISC) ELS commands to those
4459 * N_Ports which are in node port recovery state and ADISC has not been issued
4460 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4461 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4462 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4463 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4464 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4465 * IOCBs quit for later pick up. On the other hand, after walking through
4466 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4467 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4468 * no more ADISC need to be sent.
4471 * The number of N_Ports with adisc issued.
4474 lpfc_els_disc_adisc(struct lpfc_vport *vport)
4476 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4477 struct lpfc_nodelist *ndlp, *next_ndlp;
4480 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4481 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4482 if (!NLP_CHK_NODE_ACT(ndlp))
4484 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4485 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4486 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
4487 spin_lock_irq(shost->host_lock);
4488 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4489 spin_unlock_irq(shost->host_lock);
4490 ndlp->nlp_prev_state = ndlp->nlp_state;
4491 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4492 lpfc_issue_els_adisc(vport, ndlp, 0);
4494 vport->num_disc_nodes++;
4495 if (vport->num_disc_nodes >=
4496 vport->cfg_discovery_threads) {
4497 spin_lock_irq(shost->host_lock);
4498 vport->fc_flag |= FC_NLP_MORE;
4499 spin_unlock_irq(shost->host_lock);
4504 if (sentadisc == 0) {
4505 spin_lock_irq(shost->host_lock);
4506 vport->fc_flag &= ~FC_NLP_MORE;
4507 spin_unlock_irq(shost->host_lock);
4513 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4514 * @vport: pointer to a host virtual N_Port data structure.
4516 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4517 * which are in node port recovery state, with a @vport. Each time an ELS
4518 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4519 * the per @vport number of discover count (num_disc_nodes) shall be
4520 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4521 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4522 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4523 * later pick up. On the other hand, after walking through all the ndlps with
4524 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4525 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4526 * PLOGI need to be sent.
4529 * The number of N_Ports with plogi issued.
4532 lpfc_els_disc_plogi(struct lpfc_vport *vport)
4534 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4535 struct lpfc_nodelist *ndlp, *next_ndlp;
4538 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4539 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4540 if (!NLP_CHK_NODE_ACT(ndlp))
4542 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4543 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4544 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
4545 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
4546 ndlp->nlp_prev_state = ndlp->nlp_state;
4547 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4548 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4550 vport->num_disc_nodes++;
4551 if (vport->num_disc_nodes >=
4552 vport->cfg_discovery_threads) {
4553 spin_lock_irq(shost->host_lock);
4554 vport->fc_flag |= FC_NLP_MORE;
4555 spin_unlock_irq(shost->host_lock);
4561 lpfc_set_disctmo(vport);
4564 spin_lock_irq(shost->host_lock);
4565 vport->fc_flag &= ~FC_NLP_MORE;
4566 spin_unlock_irq(shost->host_lock);
4572 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
4576 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
4577 desc->payload.els_req = word0;
4578 desc->length = cpu_to_be32(sizeof(desc->payload));
4582 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
4583 uint8_t *page_a0, uint8_t *page_a2)
4585 uint16_t wavelength;
4586 uint16_t temperature;
4592 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
4593 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
4595 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
4597 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
4598 &page_a0[SSF_TRANSCEIVER_CODE_B4];
4599 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
4600 &page_a0[SSF_TRANSCEIVER_CODE_B5];
4602 if ((trasn_code_byte4->fc_sw_laser) ||
4603 (trasn_code_byte5->fc_sw_laser_sl) ||
4604 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
4605 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
4606 } else if (trasn_code_byte4->fc_lw_laser) {
4607 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
4608 page_a0[SSF_WAVELENGTH_B0];
4609 if (wavelength == SFP_WAVELENGTH_LC1310)
4610 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
4611 if (wavelength == SFP_WAVELENGTH_LL1550)
4612 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
4614 /* check if its SFP+ */
4615 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
4616 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
4617 << SFP_FLAG_CT_SHIFT;
4619 /* check if its OPTICAL */
4620 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
4621 SFP_FLAG_IS_OPTICAL_PORT : 0)
4622 << SFP_FLAG_IS_OPTICAL_SHIFT;
4624 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
4625 page_a2[SFF_TEMPERATURE_B0]);
4626 vcc = (page_a2[SFF_VCC_B1] << 8 |
4627 page_a2[SFF_VCC_B0]);
4628 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
4629 page_a2[SFF_TXPOWER_B0]);
4630 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
4631 page_a2[SFF_TX_BIAS_CURRENT_B0]);
4632 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
4633 page_a2[SFF_RXPOWER_B0]);
4634 desc->sfp_info.temperature = cpu_to_be16(temperature);
4635 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
4636 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
4637 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
4638 desc->sfp_info.vcc = cpu_to_be16(vcc);
4640 desc->sfp_info.flags = cpu_to_be16(flag);
4641 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
4645 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
4650 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
4652 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
4654 desc->info.port_type = cpu_to_be32(type);
4656 desc->info.link_status.link_failure_cnt =
4657 cpu_to_be32(stat->linkFailureCnt);
4658 desc->info.link_status.loss_of_synch_cnt =
4659 cpu_to_be32(stat->lossSyncCnt);
4660 desc->info.link_status.loss_of_signal_cnt =
4661 cpu_to_be32(stat->lossSignalCnt);
4662 desc->info.link_status.primitive_seq_proto_err =
4663 cpu_to_be32(stat->primSeqErrCnt);
4664 desc->info.link_status.invalid_trans_word =
4665 cpu_to_be32(stat->invalidXmitWord);
4666 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
4668 desc->length = cpu_to_be32(sizeof(desc->info));
4672 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
4674 uint16_t rdp_cap = 0;
4677 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
4679 switch (phba->sli4_hba.link_state.speed) {
4680 case LPFC_FC_LA_SPEED_1G:
4681 rdp_speed = RDP_PS_1GB;
4683 case LPFC_FC_LA_SPEED_2G:
4684 rdp_speed = RDP_PS_2GB;
4686 case LPFC_FC_LA_SPEED_4G:
4687 rdp_speed = RDP_PS_4GB;
4689 case LPFC_FC_LA_SPEED_8G:
4690 rdp_speed = RDP_PS_8GB;
4692 case LPFC_FC_LA_SPEED_10G:
4693 rdp_speed = RDP_PS_10GB;
4695 case LPFC_FC_LA_SPEED_16G:
4696 rdp_speed = RDP_PS_16GB;
4698 case LPFC_FC_LA_SPEED_32G:
4699 rdp_speed = RDP_PS_32GB;
4702 rdp_speed = RDP_PS_UNKNOWN;
4706 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
4708 if (phba->lmt & LMT_32Gb)
4709 rdp_cap |= RDP_PS_32GB;
4710 if (phba->lmt & LMT_16Gb)
4711 rdp_cap |= RDP_PS_16GB;
4712 if (phba->lmt & LMT_10Gb)
4713 rdp_cap |= RDP_PS_10GB;
4714 if (phba->lmt & LMT_8Gb)
4715 rdp_cap |= RDP_PS_8GB;
4716 if (phba->lmt & LMT_4Gb)
4717 rdp_cap |= RDP_PS_4GB;
4718 if (phba->lmt & LMT_2Gb)
4719 rdp_cap |= RDP_PS_2GB;
4720 if (phba->lmt & LMT_1Gb)
4721 rdp_cap |= RDP_PS_1GB;
4724 rdp_cap = RDP_CAP_UNKNOWN;
4726 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
4727 desc->length = cpu_to_be32(sizeof(desc->info));
4731 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
4732 struct lpfc_hba *phba)
4735 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
4737 memcpy(desc->port_names.wwnn, phba->wwnn,
4738 sizeof(desc->port_names.wwnn));
4740 memcpy(desc->port_names.wwpn, &phba->wwpn,
4741 sizeof(desc->port_names.wwpn));
4743 desc->length = cpu_to_be32(sizeof(desc->port_names));
4747 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
4748 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4751 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
4752 if (vport->fc_flag & FC_FABRIC) {
4753 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
4754 sizeof(desc->port_names.wwnn));
4756 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
4757 sizeof(desc->port_names.wwpn));
4758 } else { /* Point to Point */
4759 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
4760 sizeof(desc->port_names.wwnn));
4762 memcpy(desc->port_names.wwnn, &ndlp->nlp_portname,
4763 sizeof(desc->port_names.wwpn));
4766 desc->length = cpu_to_be32(sizeof(desc->port_names));
4770 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
4773 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
4774 struct lpfc_vport *vport = ndlp->vport;
4775 struct lpfc_iocbq *elsiocb;
4778 struct ls_rjt *stat;
4779 struct fc_rdp_res_frame *rdp_res;
4783 if (status != SUCCESS)
4785 cmdsize = sizeof(struct fc_rdp_res_frame);
4787 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
4788 lpfc_max_els_tries, rdp_context->ndlp,
4789 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
4792 goto free_rdp_context;
4794 icmd = &elsiocb->iocb;
4795 icmd->ulpContext = rdp_context->rx_id;
4796 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
4798 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4799 "2171 Xmit RDP response tag x%x xri x%x, "
4800 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
4801 elsiocb->iotag, elsiocb->iocb.ulpContext,
4802 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4804 rdp_res = (struct fc_rdp_res_frame *)
4805 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4806 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4807 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
4808 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4810 /* For RDP payload */
4811 lpfc_rdp_res_link_service(&rdp_res->link_service_desc, ELS_CMD_RDP);
4813 lpfc_rdp_res_sfp_desc(&rdp_res->sfp_desc,
4814 rdp_context->page_a0, rdp_context->page_a2);
4815 lpfc_rdp_res_speed(&rdp_res->portspeed_desc, phba);
4816 lpfc_rdp_res_link_error(&rdp_res->link_error_desc,
4817 &rdp_context->link_stat);
4818 lpfc_rdp_res_diag_port_names(&rdp_res->diag_port_names_desc, phba);
4819 lpfc_rdp_res_attach_port_names(&rdp_res->attached_port_names_desc,
4821 rdp_res->length = cpu_to_be32(RDP_DESC_PAYLOAD_SIZE);
4823 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4825 phba->fc_stat.elsXmitACC++;
4826 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4827 if (rc == IOCB_ERROR)
4828 lpfc_els_free_iocb(phba, elsiocb);
4834 cmdsize = 2 * sizeof(uint32_t);
4835 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
4836 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
4839 goto free_rdp_context;
4841 icmd = &elsiocb->iocb;
4842 icmd->ulpContext = rdp_context->rx_id;
4843 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
4844 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4846 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4847 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
4848 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
4850 phba->fc_stat.elsXmitLSRJT++;
4851 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4852 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4854 if (rc == IOCB_ERROR)
4855 lpfc_els_free_iocb(phba, elsiocb);
4861 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
4863 LPFC_MBOXQ_t *mbox = NULL;
4866 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4868 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
4869 "7105 failed to allocate mailbox memory");
4873 if (lpfc_sli4_dump_page_a0(phba, mbox))
4874 goto prep_mbox_fail;
4875 mbox->vport = rdp_context->ndlp->vport;
4876 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
4877 mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
4878 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4879 if (rc == MBX_NOT_FINISHED)
4880 goto issue_mbox_fail;
4886 mempool_free(mbox, phba->mbox_mem_pool);
4891 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
4892 * @vport: pointer to a host virtual N_Port data structure.
4893 * @cmdiocb: pointer to lpfc command iocb data structure.
4894 * @ndlp: pointer to a node-list data structure.
4896 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
4897 * IOCB. First, the payload of the unsolicited RDP is checked.
4898 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
4899 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
4900 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
4901 * gather all data and send RDP response.
4904 * 0 - Sent the acc response
4905 * 1 - Sent the reject response.
4908 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
4909 struct lpfc_nodelist *ndlp)
4911 struct lpfc_hba *phba = vport->phba;
4912 struct lpfc_dmabuf *pcmd;
4913 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
4914 struct fc_rdp_req_frame *rdp_req;
4915 struct lpfc_rdp_context *rdp_context;
4919 if (phba->sli_rev < LPFC_SLI_REV4 ||
4920 (bf_get(lpfc_sli_intf_if_type,
4921 &phba->sli4_hba.sli_intf) !=
4922 LPFC_SLI_INTF_IF_TYPE_2)) {
4923 rjt_err = LSRJT_UNABLE_TPC;
4924 rjt_expl = LSEXP_REQ_UNSUPPORTED;
4928 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
4929 rjt_err = LSRJT_UNABLE_TPC;
4930 rjt_expl = LSEXP_REQ_UNSUPPORTED;
4934 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
4935 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
4938 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4939 "2422 ELS RDP Request "
4940 "dec len %d tag x%x port_id %d len %d\n",
4941 be32_to_cpu(rdp_req->rdp_des_length),
4942 be32_to_cpu(rdp_req->nport_id_desc.tag),
4943 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
4944 be32_to_cpu(rdp_req->nport_id_desc.length));
4946 if (sizeof(struct fc_rdp_nport_desc) !=
4947 be32_to_cpu(rdp_req->rdp_des_length))
4949 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
4951 if (RDP_NPORT_ID_SIZE !=
4952 be32_to_cpu(rdp_req->nport_id_desc.length))
4954 rdp_context = kmalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
4956 rjt_err = LSRJT_UNABLE_TPC;
4960 memset(rdp_context, 0, sizeof(struct lpfc_rdp_context));
4961 cmd = &cmdiocb->iocb;
4962 rdp_context->ndlp = lpfc_nlp_get(ndlp);
4963 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
4964 rdp_context->rx_id = cmd->ulpContext;
4965 rdp_context->cmpl = lpfc_els_rdp_cmpl;
4966 if (lpfc_get_rdp_info(phba, rdp_context)) {
4967 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
4968 "2423 Unable to send mailbox");
4970 rjt_err = LSRJT_UNABLE_TPC;
4978 rjt_err = LSRJT_LOGICAL_ERR;
4981 memset(&stat, 0, sizeof(stat));
4982 stat.un.b.lsRjtRsnCode = rjt_err;
4983 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
4984 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
4990 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4995 struct lpfc_iocbq *elsiocb;
4996 struct lpfc_nodelist *ndlp;
4997 struct ls_rjt *stat;
4998 union lpfc_sli4_cfg_shdr *shdr;
4999 struct lpfc_lcb_context *lcb_context;
5000 struct fc_lcb_res_frame *lcb_res;
5001 uint32_t cmdsize, shdr_status, shdr_add_status;
5005 lcb_context = (struct lpfc_lcb_context *)pmb->context1;
5006 ndlp = lcb_context->ndlp;
5007 pmb->context1 = NULL;
5008 pmb->context2 = NULL;
5010 shdr = (union lpfc_sli4_cfg_shdr *)
5011 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
5012 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5013 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5015 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
5016 "0194 SET_BEACON_CONFIG mailbox "
5017 "completed with status x%x add_status x%x,"
5018 " mbx status x%x\n",
5019 shdr_status, shdr_add_status, mb->mbxStatus);
5021 if (mb->mbxStatus && !(shdr_status &&
5022 shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)) {
5023 mempool_free(pmb, phba->mbox_mem_pool);
5027 mempool_free(pmb, phba->mbox_mem_pool);
5028 cmdsize = sizeof(struct fc_lcb_res_frame);
5029 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5030 lpfc_max_els_tries, ndlp,
5031 ndlp->nlp_DID, ELS_CMD_ACC);
5033 /* Decrement the ndlp reference count from previous mbox command */
5037 goto free_lcb_context;
5039 lcb_res = (struct fc_lcb_res_frame *)
5040 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5042 icmd = &elsiocb->iocb;
5043 icmd->ulpContext = lcb_context->rx_id;
5044 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5046 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5047 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
5048 lcb_res->lcb_sub_command = lcb_context->sub_command;
5049 lcb_res->lcb_type = lcb_context->type;
5050 lcb_res->lcb_frequency = lcb_context->frequency;
5051 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5052 phba->fc_stat.elsXmitACC++;
5053 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5054 if (rc == IOCB_ERROR)
5055 lpfc_els_free_iocb(phba, elsiocb);
5061 cmdsize = sizeof(struct fc_lcb_res_frame);
5062 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5063 lpfc_max_els_tries, ndlp,
5064 ndlp->nlp_DID, ELS_CMD_LS_RJT);
5067 goto free_lcb_context;
5069 icmd = &elsiocb->iocb;
5070 icmd->ulpContext = lcb_context->rx_id;
5071 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5072 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5074 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
5075 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5076 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5078 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5079 phba->fc_stat.elsXmitLSRJT++;
5080 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5081 if (rc == IOCB_ERROR)
5082 lpfc_els_free_iocb(phba, elsiocb);
5088 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
5089 struct lpfc_lcb_context *lcb_context,
5090 uint32_t beacon_state)
5092 struct lpfc_hba *phba = vport->phba;
5093 LPFC_MBOXQ_t *mbox = NULL;
5097 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5101 len = sizeof(struct lpfc_mbx_set_beacon_config) -
5102 sizeof(struct lpfc_sli4_cfg_mhdr);
5103 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5104 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
5105 LPFC_SLI4_MBX_EMBED);
5106 mbox->context1 = (void *)lcb_context;
5107 mbox->vport = phba->pport;
5108 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
5109 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
5110 phba->sli4_hba.physical_port);
5111 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
5113 bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1);
5114 bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0);
5115 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5116 if (rc == MBX_NOT_FINISHED) {
5117 mempool_free(mbox, phba->mbox_mem_pool);
5126 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5127 * @vport: pointer to a host virtual N_Port data structure.
5128 * @cmdiocb: pointer to lpfc command iocb data structure.
5129 * @ndlp: pointer to a node-list data structure.
5131 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5132 * First, the payload of the unsolicited LCB is checked.
5133 * Then based on Subcommand beacon will either turn on or off.
5136 * 0 - Sent the acc response
5137 * 1 - Sent the reject response.
5140 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5141 struct lpfc_nodelist *ndlp)
5143 struct lpfc_hba *phba = vport->phba;
5144 struct lpfc_dmabuf *pcmd;
5146 struct fc_lcb_request_frame *beacon;
5147 struct lpfc_lcb_context *lcb_context;
5148 uint8_t state, rjt_err;
5151 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
5152 lp = (uint8_t *)pcmd->virt;
5153 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
5155 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5156 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5157 "type x%x frequency %x duration x%x\n",
5158 lp[0], lp[1], lp[2],
5159 beacon->lcb_command,
5160 beacon->lcb_sub_command,
5162 beacon->lcb_frequency,
5163 be16_to_cpu(beacon->lcb_duration));
5165 if (phba->sli_rev < LPFC_SLI_REV4 ||
5166 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5167 LPFC_SLI_INTF_IF_TYPE_2)) {
5168 rjt_err = LSRJT_CMD_UNSUPPORTED;
5171 lcb_context = kmalloc(sizeof(struct lpfc_lcb_context), GFP_KERNEL);
5173 if (phba->hba_flag & HBA_FCOE_MODE) {
5174 rjt_err = LSRJT_CMD_UNSUPPORTED;
5177 if (beacon->lcb_frequency == 0) {
5178 rjt_err = LSRJT_CMD_UNSUPPORTED;
5181 if ((beacon->lcb_type != LPFC_LCB_GREEN) &&
5182 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5183 rjt_err = LSRJT_CMD_UNSUPPORTED;
5186 if ((beacon->lcb_sub_command != LPFC_LCB_ON) &&
5187 (beacon->lcb_sub_command != LPFC_LCB_OFF)) {
5188 rjt_err = LSRJT_CMD_UNSUPPORTED;
5191 if ((beacon->lcb_sub_command == LPFC_LCB_ON) &&
5192 (beacon->lcb_type != LPFC_LCB_GREEN) &&
5193 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5194 rjt_err = LSRJT_CMD_UNSUPPORTED;
5197 if (be16_to_cpu(beacon->lcb_duration) != 0) {
5198 rjt_err = LSRJT_CMD_UNSUPPORTED;
5202 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
5203 lcb_context->sub_command = beacon->lcb_sub_command;
5204 lcb_context->type = beacon->lcb_type;
5205 lcb_context->frequency = beacon->lcb_frequency;
5206 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
5207 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
5208 lcb_context->ndlp = lpfc_nlp_get(ndlp);
5209 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
5210 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
5211 LOG_ELS, "0193 failed to send mail box");
5213 rjt_err = LSRJT_UNABLE_TPC;
5218 memset(&stat, 0, sizeof(stat));
5219 stat.un.b.lsRjtRsnCode = rjt_err;
5220 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5226 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5227 * @vport: pointer to a host virtual N_Port data structure.
5229 * This routine cleans up any Registration State Change Notification
5230 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5231 * @vport together with the host_lock is used to prevent multiple thread
5232 * trying to access the RSCN array on a same @vport at the same time.
5235 lpfc_els_flush_rscn(struct lpfc_vport *vport)
5237 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5238 struct lpfc_hba *phba = vport->phba;
5241 spin_lock_irq(shost->host_lock);
5242 if (vport->fc_rscn_flush) {
5243 /* Another thread is walking fc_rscn_id_list on this vport */
5244 spin_unlock_irq(shost->host_lock);
5247 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5248 vport->fc_rscn_flush = 1;
5249 spin_unlock_irq(shost->host_lock);
5251 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5252 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
5253 vport->fc_rscn_id_list[i] = NULL;
5255 spin_lock_irq(shost->host_lock);
5256 vport->fc_rscn_id_cnt = 0;
5257 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
5258 spin_unlock_irq(shost->host_lock);
5259 lpfc_can_disctmo(vport);
5260 /* Indicate we are done walking this fc_rscn_id_list */
5261 vport->fc_rscn_flush = 0;
5265 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5266 * @vport: pointer to a host virtual N_Port data structure.
5267 * @did: remote destination port identifier.
5269 * This routine checks whether there is any pending Registration State
5270 * Configuration Notification (RSCN) to a @did on @vport.
5273 * None zero - The @did matched with a pending rscn
5274 * 0 - not able to match @did with a pending rscn
5277 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
5282 uint32_t payload_len, i;
5283 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5285 ns_did.un.word = did;
5287 /* Never match fabric nodes for RSCNs */
5288 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
5291 /* If we are doing a FULL RSCN rediscovery, match everything */
5292 if (vport->fc_flag & FC_RSCN_DISCOVERY)
5295 spin_lock_irq(shost->host_lock);
5296 if (vport->fc_rscn_flush) {
5297 /* Another thread is walking fc_rscn_id_list on this vport */
5298 spin_unlock_irq(shost->host_lock);
5301 /* Indicate we are walking fc_rscn_id_list on this vport */
5302 vport->fc_rscn_flush = 1;
5303 spin_unlock_irq(shost->host_lock);
5304 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5305 lp = vport->fc_rscn_id_list[i]->virt;
5306 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5307 payload_len -= sizeof(uint32_t); /* take off word 0 */
5308 while (payload_len) {
5309 rscn_did.un.word = be32_to_cpu(*lp++);
5310 payload_len -= sizeof(uint32_t);
5311 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
5312 case RSCN_ADDRESS_FORMAT_PORT:
5313 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5314 && (ns_did.un.b.area == rscn_did.un.b.area)
5315 && (ns_did.un.b.id == rscn_did.un.b.id))
5316 goto return_did_out;
5318 case RSCN_ADDRESS_FORMAT_AREA:
5319 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5320 && (ns_did.un.b.area == rscn_did.un.b.area))
5321 goto return_did_out;
5323 case RSCN_ADDRESS_FORMAT_DOMAIN:
5324 if (ns_did.un.b.domain == rscn_did.un.b.domain)
5325 goto return_did_out;
5327 case RSCN_ADDRESS_FORMAT_FABRIC:
5328 goto return_did_out;
5332 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5333 vport->fc_rscn_flush = 0;
5336 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5337 vport->fc_rscn_flush = 0;
5342 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5343 * @vport: pointer to a host virtual N_Port data structure.
5345 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5346 * state machine for a @vport's nodes that are with pending RSCN (Registration
5347 * State Change Notification).
5350 * 0 - Successful (currently alway return 0)
5353 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
5355 struct lpfc_nodelist *ndlp = NULL;
5357 /* Move all affected nodes by pending RSCNs to NPR state. */
5358 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5359 if (!NLP_CHK_NODE_ACT(ndlp) ||
5360 (ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
5361 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
5363 lpfc_disc_state_machine(vport, ndlp, NULL,
5364 NLP_EVT_DEVICE_RECOVERY);
5365 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5371 * lpfc_send_rscn_event - Send an RSCN event to management application
5372 * @vport: pointer to a host virtual N_Port data structure.
5373 * @cmdiocb: pointer to lpfc command iocb data structure.
5375 * lpfc_send_rscn_event sends an RSCN netlink event to management
5379 lpfc_send_rscn_event(struct lpfc_vport *vport,
5380 struct lpfc_iocbq *cmdiocb)
5382 struct lpfc_dmabuf *pcmd;
5383 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5384 uint32_t *payload_ptr;
5385 uint32_t payload_len;
5386 struct lpfc_rscn_event_header *rscn_event_data;
5388 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5389 payload_ptr = (uint32_t *) pcmd->virt;
5390 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
5392 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
5393 payload_len, GFP_KERNEL);
5394 if (!rscn_event_data) {
5395 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5396 "0147 Failed to allocate memory for RSCN event\n");
5399 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
5400 rscn_event_data->payload_length = payload_len;
5401 memcpy(rscn_event_data->rscn_payload, payload_ptr,
5404 fc_host_post_vendor_event(shost,
5405 fc_get_event_number(),
5406 sizeof(struct lpfc_rscn_event_header) + payload_len,
5407 (char *)rscn_event_data,
5410 kfree(rscn_event_data);
5414 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5415 * @vport: pointer to a host virtual N_Port data structure.
5416 * @cmdiocb: pointer to lpfc command iocb data structure.
5417 * @ndlp: pointer to a node-list data structure.
5419 * This routine processes an unsolicited RSCN (Registration State Change
5420 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5421 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5422 * discover state machine is about to begin discovery, it just accepts the
5423 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5424 * contains N_Port IDs for other vports on this HBA, it just accepts the
5425 * RSCN and ignore processing it. If the state machine is in the recovery
5426 * state, the fc_rscn_id_list of this @vport is walked and the
5427 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5428 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5429 * routine is invoked to handle the RSCN event.
5432 * 0 - Just sent the acc response
5433 * 1 - Sent the acc response and waited for name server completion
5436 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5437 struct lpfc_nodelist *ndlp)
5439 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5440 struct lpfc_hba *phba = vport->phba;
5441 struct lpfc_dmabuf *pcmd;
5442 uint32_t *lp, *datap;
5443 uint32_t payload_len, length, nportid, *cmd;
5445 int rscn_id = 0, hba_id = 0;
5448 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5449 lp = (uint32_t *) pcmd->virt;
5451 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5452 payload_len -= sizeof(uint32_t); /* take off word 0 */
5454 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5455 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5456 vport->fc_flag, payload_len, *lp,
5457 vport->fc_rscn_id_cnt);
5459 /* Send an RSCN event to the management application */
5460 lpfc_send_rscn_event(vport, cmdiocb);
5462 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
5463 fc_host_post_event(shost, fc_get_event_number(),
5464 FCH_EVT_RSCN, lp[i]);
5466 /* If we are about to begin discovery, just ACC the RSCN.
5467 * Discovery processing will satisfy it.
5469 if (vport->port_state <= LPFC_NS_QRY) {
5470 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5471 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5472 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5474 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5478 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5479 * just ACC and ignore it.
5481 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5482 !(vport->cfg_peer_port_login)) {
5487 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
5488 i -= sizeof(uint32_t);
5490 if (lpfc_find_vport_by_did(phba, nportid))
5493 if (rscn_id == hba_id) {
5494 /* ALL NPortIDs in RSCN are on HBA */
5495 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5497 "Data: x%x x%x x%x x%x\n",
5498 vport->fc_flag, payload_len,
5499 *lp, vport->fc_rscn_id_cnt);
5500 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5501 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
5502 ndlp->nlp_DID, vport->port_state,
5505 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
5511 spin_lock_irq(shost->host_lock);
5512 if (vport->fc_rscn_flush) {
5513 /* Another thread is walking fc_rscn_id_list on this vport */
5514 vport->fc_flag |= FC_RSCN_DISCOVERY;
5515 spin_unlock_irq(shost->host_lock);
5517 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5520 /* Indicate we are walking fc_rscn_id_list on this vport */
5521 vport->fc_rscn_flush = 1;
5522 spin_unlock_irq(shost->host_lock);
5523 /* Get the array count after successfully have the token */
5524 rscn_cnt = vport->fc_rscn_id_cnt;
5525 /* If we are already processing an RSCN, save the received
5526 * RSCN payload buffer, cmdiocb->context2 to process later.
5528 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
5529 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5530 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
5531 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5533 spin_lock_irq(shost->host_lock);
5534 vport->fc_flag |= FC_RSCN_DEFERRED;
5535 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
5536 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
5537 vport->fc_flag |= FC_RSCN_MODE;
5538 spin_unlock_irq(shost->host_lock);
5540 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
5541 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
5544 (payload_len + length <= LPFC_BPL_SIZE)) {
5545 *cmd &= ELS_CMD_MASK;
5546 *cmd |= cpu_to_be32(payload_len + length);
5547 memcpy(((uint8_t *)cmd) + length, lp,
5550 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
5551 vport->fc_rscn_id_cnt++;
5552 /* If we zero, cmdiocb->context2, the calling
5553 * routine will not try to free it.
5555 cmdiocb->context2 = NULL;
5558 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5559 "0235 Deferred RSCN "
5560 "Data: x%x x%x x%x\n",
5561 vport->fc_rscn_id_cnt, vport->fc_flag,
5564 vport->fc_flag |= FC_RSCN_DISCOVERY;
5565 spin_unlock_irq(shost->host_lock);
5566 /* ReDiscovery RSCN */
5567 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5568 "0234 ReDiscovery RSCN "
5569 "Data: x%x x%x x%x\n",
5570 vport->fc_rscn_id_cnt, vport->fc_flag,
5573 /* Indicate we are done walking fc_rscn_id_list on this vport */
5574 vport->fc_rscn_flush = 0;
5576 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5577 /* send RECOVERY event for ALL nodes that match RSCN payload */
5578 lpfc_rscn_recovery_check(vport);
5579 spin_lock_irq(shost->host_lock);
5580 vport->fc_flag &= ~FC_RSCN_DEFERRED;
5581 spin_unlock_irq(shost->host_lock);
5584 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5585 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
5586 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5588 spin_lock_irq(shost->host_lock);
5589 vport->fc_flag |= FC_RSCN_MODE;
5590 spin_unlock_irq(shost->host_lock);
5591 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
5592 /* Indicate we are done walking fc_rscn_id_list on this vport */
5593 vport->fc_rscn_flush = 0;
5595 * If we zero, cmdiocb->context2, the calling routine will
5596 * not try to free it.
5598 cmdiocb->context2 = NULL;
5599 lpfc_set_disctmo(vport);
5601 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5602 /* send RECOVERY event for ALL nodes that match RSCN payload */
5603 lpfc_rscn_recovery_check(vport);
5604 return lpfc_els_handle_rscn(vport);
5608 * lpfc_els_handle_rscn - Handle rscn for a vport
5609 * @vport: pointer to a host virtual N_Port data structure.
5611 * This routine handles the Registration State Configuration Notification
5612 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5613 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5614 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5615 * NameServer shall be issued. If CT command to the NameServer fails to be
5616 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5617 * RSCN activities with the @vport.
5620 * 0 - Cleaned up rscn on the @vport
5621 * 1 - Wait for plogi to name server before proceed
5624 lpfc_els_handle_rscn(struct lpfc_vport *vport)
5626 struct lpfc_nodelist *ndlp;
5627 struct lpfc_hba *phba = vport->phba;
5629 /* Ignore RSCN if the port is being torn down. */
5630 if (vport->load_flag & FC_UNLOADING) {
5631 lpfc_els_flush_rscn(vport);
5635 /* Start timer for RSCN processing */
5636 lpfc_set_disctmo(vport);
5638 /* RSCN processed */
5639 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5640 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5641 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
5644 /* To process RSCN, first compare RSCN data with NameServer */
5645 vport->fc_ns_retry = 0;
5646 vport->num_disc_nodes = 0;
5648 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5649 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
5650 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
5651 /* Good ndlp, issue CT Request to NameServer */
5652 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0)
5653 /* Wait for NameServer query cmpl before we can
5657 /* If login to NameServer does not exist, issue one */
5658 /* Good status, issue PLOGI to NameServer */
5659 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5660 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5661 /* Wait for NameServer login cmpl before we can
5666 ndlp = lpfc_enable_node(vport, ndlp,
5667 NLP_STE_PLOGI_ISSUE);
5669 lpfc_els_flush_rscn(vport);
5672 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
5674 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
5676 lpfc_els_flush_rscn(vport);
5679 lpfc_nlp_init(vport, ndlp, NameServer_DID);
5680 ndlp->nlp_prev_state = ndlp->nlp_state;
5681 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
5683 ndlp->nlp_type |= NLP_FABRIC;
5684 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
5685 /* Wait for NameServer login cmpl before we can
5691 lpfc_els_flush_rscn(vport);
5696 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
5697 * @vport: pointer to a host virtual N_Port data structure.
5698 * @cmdiocb: pointer to lpfc command iocb data structure.
5699 * @ndlp: pointer to a node-list data structure.
5701 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
5702 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
5703 * point topology. As an unsolicited FLOGI should not be received in a loop
5704 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
5705 * lpfc_check_sparm() routine is invoked to check the parameters in the
5706 * unsolicited FLOGI. If parameters validation failed, the routine
5707 * lpfc_els_rsp_reject() shall be called with reject reason code set to
5708 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
5709 * FLOGI shall be compared with the Port WWN of the @vport to determine who
5710 * will initiate PLOGI. The higher lexicographical value party shall has
5711 * higher priority (as the winning port) and will initiate PLOGI and
5712 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
5713 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
5714 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
5717 * 0 - Successfully processed the unsolicited flogi
5718 * 1 - Failed to process the unsolicited flogi
5721 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5722 struct lpfc_nodelist *ndlp)
5724 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5725 struct lpfc_hba *phba = vport->phba;
5726 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5727 uint32_t *lp = (uint32_t *) pcmd->virt;
5728 IOCB_t *icmd = &cmdiocb->iocb;
5729 struct serv_parm *sp;
5734 uint32_t fc_flag = 0;
5735 uint32_t port_state = 0;
5738 sp = (struct serv_parm *) lp;
5740 /* FLOGI received */
5742 lpfc_set_disctmo(vport);
5744 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5745 /* We should never receive a FLOGI in loop mode, ignore it */
5746 did = icmd->un.elsreq64.remoteID;
5748 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
5750 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5751 "0113 An FLOGI ELS command x%x was "
5752 "received from DID x%x in Loop Mode\n",
5757 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) {
5758 /* For a FLOGI we accept, then if our portname is greater
5759 * then the remote portname we initiate Nport login.
5762 rc = memcmp(&vport->fc_portname, &sp->portName,
5763 sizeof(struct lpfc_name));
5766 if (phba->sli_rev < LPFC_SLI_REV4) {
5767 mbox = mempool_alloc(phba->mbox_mem_pool,
5771 lpfc_linkdown(phba);
5772 lpfc_init_link(phba, mbox,
5774 phba->cfg_link_speed);
5775 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
5776 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5777 mbox->vport = vport;
5778 rc = lpfc_sli_issue_mbox(phba, mbox,
5780 lpfc_set_loopback_flag(phba);
5781 if (rc == MBX_NOT_FINISHED)
5782 mempool_free(mbox, phba->mbox_mem_pool);
5785 /* abort the flogi coming back to ourselves
5786 * due to external loopback on the port.
5788 lpfc_els_abort_flogi(phba);
5791 } else if (rc > 0) { /* greater than */
5792 spin_lock_irq(shost->host_lock);
5793 vport->fc_flag |= FC_PT2PT_PLOGI;
5794 spin_unlock_irq(shost->host_lock);
5796 /* If we have the high WWPN we can assign our own
5797 * myDID; otherwise, we have to WAIT for a PLOGI
5798 * from the remote NPort to find out what it
5801 vport->fc_myDID = PT2PT_LocalID;
5803 vport->fc_myDID = PT2PT_RemoteID;
5806 * The vport state should go to LPFC_FLOGI only
5807 * AFTER we issue a FLOGI, not receive one.
5809 spin_lock_irq(shost->host_lock);
5810 fc_flag = vport->fc_flag;
5811 port_state = vport->port_state;
5812 vport->fc_flag |= FC_PT2PT;
5813 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
5814 spin_unlock_irq(shost->host_lock);
5815 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5816 "3311 Rcv Flogi PS x%x new PS x%x "
5817 "fc_flag x%x new fc_flag x%x\n",
5818 port_state, vport->port_state,
5819 fc_flag, vport->fc_flag);
5822 * We temporarily set fc_myDID to make it look like we are
5823 * a Fabric. This is done just so we end up with the right
5824 * did / sid on the FLOGI ACC rsp.
5826 did = vport->fc_myDID;
5827 vport->fc_myDID = Fabric_DID;
5830 /* Reject this request because invalid parameters */
5831 stat.un.b.lsRjtRsvd0 = 0;
5832 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5833 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
5834 stat.un.b.vendorUnique = 0;
5837 * We temporarily set fc_myDID to make it look like we are
5838 * a Fabric. This is done just so we end up with the right
5839 * did / sid on the FLOGI LS_RJT rsp.
5841 did = vport->fc_myDID;
5842 vport->fc_myDID = Fabric_DID;
5844 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
5847 /* Now lets put fc_myDID back to what its supposed to be */
5848 vport->fc_myDID = did;
5854 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
5856 /* Now lets put fc_myDID back to what its supposed to be */
5857 vport->fc_myDID = did;
5859 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
5861 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5865 lpfc_config_link(phba, mbox);
5867 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5868 mbox->vport = vport;
5869 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5870 if (rc == MBX_NOT_FINISHED) {
5871 mempool_free(mbox, phba->mbox_mem_pool);
5882 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
5883 * @vport: pointer to a host virtual N_Port data structure.
5884 * @cmdiocb: pointer to lpfc command iocb data structure.
5885 * @ndlp: pointer to a node-list data structure.
5887 * This routine processes Request Node Identification Data (RNID) IOCB
5888 * received as an ELS unsolicited event. Only when the RNID specified format
5889 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
5890 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
5891 * Accept (ACC) the RNID ELS command. All the other RNID formats are
5892 * rejected by invoking the lpfc_els_rsp_reject() routine.
5895 * 0 - Successfully processed rnid iocb (currently always return 0)
5898 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5899 struct lpfc_nodelist *ndlp)
5901 struct lpfc_dmabuf *pcmd;
5907 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5908 lp = (uint32_t *) pcmd->virt;
5915 switch (rn->Format) {
5917 case RNID_TOPOLOGY_DISC:
5919 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
5922 /* Reject this request because format not supported */
5923 stat.un.b.lsRjtRsvd0 = 0;
5924 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5925 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
5926 stat.un.b.vendorUnique = 0;
5927 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
5934 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
5935 * @vport: pointer to a host virtual N_Port data structure.
5936 * @cmdiocb: pointer to lpfc command iocb data structure.
5937 * @ndlp: pointer to a node-list data structure.
5940 * 0 - Successfully processed echo iocb (currently always return 0)
5943 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5944 struct lpfc_nodelist *ndlp)
5948 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
5950 /* skip over first word of echo command to find echo data */
5951 pcmd += sizeof(uint32_t);
5953 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
5958 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
5959 * @vport: pointer to a host virtual N_Port data structure.
5960 * @cmdiocb: pointer to lpfc command iocb data structure.
5961 * @ndlp: pointer to a node-list data structure.
5963 * This routine processes a Link Incident Report Registration(LIRR) IOCB
5964 * received as an ELS unsolicited event. Currently, this function just invokes
5965 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
5968 * 0 - Successfully processed lirr iocb (currently always return 0)
5971 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5972 struct lpfc_nodelist *ndlp)
5976 /* For now, unconditionally reject this command */
5977 stat.un.b.lsRjtRsvd0 = 0;
5978 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5979 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
5980 stat.un.b.vendorUnique = 0;
5981 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5986 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
5987 * @vport: pointer to a host virtual N_Port data structure.
5988 * @cmdiocb: pointer to lpfc command iocb data structure.
5989 * @ndlp: pointer to a node-list data structure.
5991 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
5992 * received as an ELS unsolicited event. A request to RRQ shall only
5993 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
5994 * Nx_Port N_Port_ID of the target Exchange is the same as the
5995 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
5996 * not accepted, an LS_RJT with reason code "Unable to perform
5997 * command request" and reason code explanation "Invalid Originator
5998 * S_ID" shall be returned. For now, we just unconditionally accept
5999 * RRQ from the target.
6002 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6003 struct lpfc_nodelist *ndlp)
6005 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6006 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6007 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
6011 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6012 * @phba: pointer to lpfc hba data structure.
6013 * @pmb: pointer to the driver internal queue element for mailbox command.
6015 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6016 * mailbox command. This callback function is to actually send the Accept
6017 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6018 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6019 * mailbox command, constructs the RPS response with the link statistics
6020 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6021 * response to the RPS.
6023 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6024 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6025 * will be stored into the context1 field of the IOCB for the completion
6026 * callback function to the RPS Accept Response ELS IOCB command.
6030 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6034 struct RLS_RSP *rls_rsp;
6036 struct lpfc_iocbq *elsiocb;
6037 struct lpfc_nodelist *ndlp;
6044 ndlp = (struct lpfc_nodelist *) pmb->context2;
6045 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6046 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6047 pmb->context1 = NULL;
6048 pmb->context2 = NULL;
6050 if (mb->mbxStatus) {
6051 mempool_free(pmb, phba->mbox_mem_pool);
6055 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
6056 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6057 lpfc_max_els_tries, ndlp,
6058 ndlp->nlp_DID, ELS_CMD_ACC);
6060 /* Decrement the ndlp reference count from previous mbox command */
6064 mempool_free(pmb, phba->mbox_mem_pool);
6068 icmd = &elsiocb->iocb;
6069 icmd->ulpContext = rxid;
6070 icmd->unsli3.rcvsli3.ox_id = oxid;
6072 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6073 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6074 pcmd += sizeof(uint32_t); /* Skip past command */
6075 rls_rsp = (struct RLS_RSP *)pcmd;
6077 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6078 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6079 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6080 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6081 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6082 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6083 mempool_free(pmb, phba->mbox_mem_pool);
6084 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6085 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6086 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6087 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6088 elsiocb->iotag, elsiocb->iocb.ulpContext,
6089 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6091 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6092 phba->fc_stat.elsXmitACC++;
6093 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6094 lpfc_els_free_iocb(phba, elsiocb);
6098 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6099 * @phba: pointer to lpfc hba data structure.
6100 * @pmb: pointer to the driver internal queue element for mailbox command.
6102 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6103 * mailbox command. This callback function is to actually send the Accept
6104 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6105 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6106 * mailbox command, constructs the RPS response with the link statistics
6107 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6108 * response to the RPS.
6110 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6111 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6112 * will be stored into the context1 field of the IOCB for the completion
6113 * callback function to the RPS Accept Response ELS IOCB command.
6117 lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6123 struct lpfc_iocbq *elsiocb;
6124 struct lpfc_nodelist *ndlp;
6132 ndlp = (struct lpfc_nodelist *) pmb->context2;
6133 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6134 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6135 pmb->context1 = NULL;
6136 pmb->context2 = NULL;
6138 if (mb->mbxStatus) {
6139 mempool_free(pmb, phba->mbox_mem_pool);
6143 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
6144 mempool_free(pmb, phba->mbox_mem_pool);
6145 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6146 lpfc_max_els_tries, ndlp,
6147 ndlp->nlp_DID, ELS_CMD_ACC);
6149 /* Decrement the ndlp reference count from previous mbox command */
6155 icmd = &elsiocb->iocb;
6156 icmd->ulpContext = rxid;
6157 icmd->unsli3.rcvsli3.ox_id = oxid;
6159 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6160 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6161 pcmd += sizeof(uint32_t); /* Skip past command */
6162 rps_rsp = (RPS_RSP *)pcmd;
6164 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
6168 if (phba->pport->fc_flag & FC_FABRIC)
6172 rps_rsp->portStatus = cpu_to_be16(status);
6173 rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6174 rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6175 rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6176 rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6177 rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6178 rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6179 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6180 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6181 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6182 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6183 elsiocb->iotag, elsiocb->iocb.ulpContext,
6184 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6186 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6187 phba->fc_stat.elsXmitACC++;
6188 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6189 lpfc_els_free_iocb(phba, elsiocb);
6194 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6195 * @vport: pointer to a host virtual N_Port data structure.
6196 * @cmdiocb: pointer to lpfc command iocb data structure.
6197 * @ndlp: pointer to a node-list data structure.
6199 * This routine processes Read Port Status (RPL) IOCB received as an
6200 * ELS unsolicited event. It first checks the remote port state. If the
6201 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6202 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6203 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6204 * for reading the HBA link statistics. It is for the callback function,
6205 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6206 * to actually sending out RPL Accept (ACC) response.
6209 * 0 - Successfully processed rls iocb (currently always return 0)
6212 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6213 struct lpfc_nodelist *ndlp)
6215 struct lpfc_hba *phba = vport->phba;
6219 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6220 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6221 /* reject the unsolicited RPS request and done with it */
6224 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6226 lpfc_read_lnk_stat(phba, mbox);
6227 mbox->context1 = (void *)((unsigned long)
6228 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6229 cmdiocb->iocb.ulpContext)); /* rx_id */
6230 mbox->context2 = lpfc_nlp_get(ndlp);
6231 mbox->vport = vport;
6232 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
6233 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6234 != MBX_NOT_FINISHED)
6235 /* Mbox completion will send ELS Response */
6237 /* Decrement reference count used for the failed mbox
6241 mempool_free(mbox, phba->mbox_mem_pool);
6244 /* issue rejection response */
6245 stat.un.b.lsRjtRsvd0 = 0;
6246 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6247 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6248 stat.un.b.vendorUnique = 0;
6249 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6254 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6255 * @vport: pointer to a host virtual N_Port data structure.
6256 * @cmdiocb: pointer to lpfc command iocb data structure.
6257 * @ndlp: pointer to a node-list data structure.
6259 * This routine processes Read Timout Value (RTV) IOCB received as an
6260 * ELS unsolicited event. It first checks the remote port state. If the
6261 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6262 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6263 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6264 * Value (RTV) unsolicited IOCB event.
6266 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6267 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6268 * will be stored into the context1 field of the IOCB for the completion
6269 * callback function to the RPS Accept Response ELS IOCB command.
6272 * 0 - Successfully processed rtv iocb (currently always return 0)
6275 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6276 struct lpfc_nodelist *ndlp)
6278 struct lpfc_hba *phba = vport->phba;
6280 struct RTV_RSP *rtv_rsp;
6282 struct lpfc_iocbq *elsiocb;
6286 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6287 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6288 /* reject the unsolicited RPS request and done with it */
6291 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
6292 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6293 lpfc_max_els_tries, ndlp,
6294 ndlp->nlp_DID, ELS_CMD_ACC);
6299 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6300 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6301 pcmd += sizeof(uint32_t); /* Skip past command */
6303 /* use the command's xri in the response */
6304 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
6305 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
6307 rtv_rsp = (struct RTV_RSP *)pcmd;
6309 /* populate RTV payload */
6310 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
6311 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
6312 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
6313 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
6314 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
6316 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6317 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6318 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6319 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6320 "Data: x%x x%x x%x\n",
6321 elsiocb->iotag, elsiocb->iocb.ulpContext,
6322 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6324 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
6325 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6326 phba->fc_stat.elsXmitACC++;
6327 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6328 lpfc_els_free_iocb(phba, elsiocb);
6332 /* issue rejection response */
6333 stat.un.b.lsRjtRsvd0 = 0;
6334 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6335 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6336 stat.un.b.vendorUnique = 0;
6337 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6341 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6342 * @vport: pointer to a host virtual N_Port data structure.
6343 * @cmdiocb: pointer to lpfc command iocb data structure.
6344 * @ndlp: pointer to a node-list data structure.
6346 * This routine processes Read Port Status (RPS) IOCB received as an
6347 * ELS unsolicited event. It first checks the remote port state. If the
6348 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6349 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6350 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6351 * for reading the HBA link statistics. It is for the callback function,
6352 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6353 * to actually sending out RPS Accept (ACC) response.
6356 * 0 - Successfully processed rps iocb (currently always return 0)
6359 lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6360 struct lpfc_nodelist *ndlp)
6362 struct lpfc_hba *phba = vport->phba;
6366 struct lpfc_dmabuf *pcmd;
6370 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6371 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6372 /* reject the unsolicited RPS request and done with it */
6375 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6376 lp = (uint32_t *) pcmd->virt;
6377 flag = (be32_to_cpu(*lp++) & 0xf);
6381 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
6382 ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
6383 sizeof(struct lpfc_name)) == 0))) {
6385 printk("Fix me....\n");
6387 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6389 lpfc_read_lnk_stat(phba, mbox);
6390 mbox->context1 = (void *)((unsigned long)
6391 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6392 cmdiocb->iocb.ulpContext)); /* rx_id */
6393 mbox->context2 = lpfc_nlp_get(ndlp);
6394 mbox->vport = vport;
6395 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
6396 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6397 != MBX_NOT_FINISHED)
6398 /* Mbox completion will send ELS Response */
6400 /* Decrement reference count used for the failed mbox
6404 mempool_free(mbox, phba->mbox_mem_pool);
6409 /* issue rejection response */
6410 stat.un.b.lsRjtRsvd0 = 0;
6411 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6412 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6413 stat.un.b.vendorUnique = 0;
6414 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6418 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6419 * @vport: pointer to a host virtual N_Port data structure.
6420 * @ndlp: pointer to a node-list data structure.
6421 * @did: DID of the target.
6422 * @rrq: Pointer to the rrq struct.
6424 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6425 * Successful the the completion handler will clear the RRQ.
6428 * 0 - Successfully sent rrq els iocb.
6429 * 1 - Failed to send rrq els iocb.
6432 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
6433 uint32_t did, struct lpfc_node_rrq *rrq)
6435 struct lpfc_hba *phba = vport->phba;
6436 struct RRQ *els_rrq;
6437 struct lpfc_iocbq *elsiocb;
6443 if (ndlp != rrq->ndlp)
6445 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
6448 /* If ndlp is not NULL, we will bump the reference count on it */
6449 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
6450 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
6455 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6457 /* For RRQ request, remainder of payload is Exchange IDs */
6458 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
6459 pcmd += sizeof(uint32_t);
6460 els_rrq = (struct RRQ *) pcmd;
6462 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
6463 bf_set(rrq_rxid, els_rrq, rrq->rxid);
6464 bf_set(rrq_did, els_rrq, vport->fc_myDID);
6465 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
6466 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
6469 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
6470 "Issue RRQ: did:x%x",
6471 did, rrq->xritag, rrq->rxid);
6472 elsiocb->context_un.rrq = rrq;
6473 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
6474 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6476 if (ret == IOCB_ERROR) {
6477 lpfc_els_free_iocb(phba, elsiocb);
6484 * lpfc_send_rrq - Sends ELS RRQ if needed.
6485 * @phba: pointer to lpfc hba data structure.
6486 * @rrq: pointer to the active rrq.
6488 * This routine will call the lpfc_issue_els_rrq if the rrq is
6489 * still active for the xri. If this function returns a failure then
6490 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6492 * Returns 0 Success.
6496 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
6498 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
6500 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
6501 return lpfc_issue_els_rrq(rrq->vport, ndlp,
6508 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6509 * @vport: pointer to a host virtual N_Port data structure.
6510 * @cmdsize: size of the ELS command.
6511 * @oldiocb: pointer to the original lpfc command iocb data structure.
6512 * @ndlp: pointer to a node-list data structure.
6514 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6515 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6517 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6518 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6519 * will be stored into the context1 field of the IOCB for the completion
6520 * callback function to the RPL Accept Response ELS command.
6523 * 0 - Successfully issued ACC RPL ELS command
6524 * 1 - Failed to issue ACC RPL ELS command
6527 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
6528 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
6530 struct lpfc_hba *phba = vport->phba;
6531 IOCB_t *icmd, *oldcmd;
6533 struct lpfc_iocbq *elsiocb;
6536 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
6537 ndlp->nlp_DID, ELS_CMD_ACC);
6542 icmd = &elsiocb->iocb;
6543 oldcmd = &oldiocb->iocb;
6544 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6545 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
6547 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6548 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6549 pcmd += sizeof(uint16_t);
6550 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
6551 pcmd += sizeof(uint16_t);
6553 /* Setup the RPL ACC payload */
6554 rpl_rsp.listLen = be32_to_cpu(1);
6556 rpl_rsp.port_num_blk.portNum = 0;
6557 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
6558 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
6559 sizeof(struct lpfc_name));
6560 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
6561 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
6562 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6563 "0120 Xmit ELS RPL ACC response tag x%x "
6564 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
6566 elsiocb->iotag, elsiocb->iocb.ulpContext,
6567 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6569 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6570 phba->fc_stat.elsXmitACC++;
6571 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
6573 lpfc_els_free_iocb(phba, elsiocb);
6580 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
6581 * @vport: pointer to a host virtual N_Port data structure.
6582 * @cmdiocb: pointer to lpfc command iocb data structure.
6583 * @ndlp: pointer to a node-list data structure.
6585 * This routine processes Read Port List (RPL) IOCB received as an ELS
6586 * unsolicited event. It first checks the remote port state. If the remote
6587 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
6588 * invokes the lpfc_els_rsp_reject() routine to send reject response.
6589 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
6590 * to accept the RPL.
6593 * 0 - Successfully processed rpl iocb (currently always return 0)
6596 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6597 struct lpfc_nodelist *ndlp)
6599 struct lpfc_dmabuf *pcmd;
6606 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6607 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
6608 /* issue rejection response */
6609 stat.un.b.lsRjtRsvd0 = 0;
6610 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6611 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6612 stat.un.b.vendorUnique = 0;
6613 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6615 /* rejected the unsolicited RPL request and done with it */
6619 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6620 lp = (uint32_t *) pcmd->virt;
6621 rpl = (RPL *) (lp + 1);
6622 maxsize = be32_to_cpu(rpl->maxsize);
6624 /* We support only one port */
6625 if ((rpl->index == 0) &&
6627 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
6628 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
6630 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
6632 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
6638 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6639 * @vport: pointer to a virtual N_Port data structure.
6640 * @cmdiocb: pointer to lpfc command iocb data structure.
6641 * @ndlp: pointer to a node-list data structure.
6643 * This routine processes Fibre Channel Address Resolution Protocol
6644 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6645 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6646 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6647 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6648 * remote PortName is compared against the FC PortName stored in the @vport
6649 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6650 * compared against the FC NodeName stored in the @vport data structure.
6651 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6652 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6653 * invoked to send out FARP Response to the remote node. Before sending the
6654 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6655 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6656 * routine is invoked to log into the remote port first.
6659 * 0 - Either the FARP Match Mode not supported or successfully processed
6662 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6663 struct lpfc_nodelist *ndlp)
6665 struct lpfc_dmabuf *pcmd;
6669 uint32_t cmd, cnt, did;
6671 icmd = &cmdiocb->iocb;
6672 did = icmd->un.elsreq64.remoteID;
6673 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6674 lp = (uint32_t *) pcmd->virt;
6678 /* FARP-REQ received from DID <did> */
6679 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6680 "0601 FARP-REQ received from DID x%x\n", did);
6681 /* We will only support match on WWPN or WWNN */
6682 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
6687 /* If this FARP command is searching for my portname */
6688 if (fp->Mflags & FARP_MATCH_PORT) {
6689 if (memcmp(&fp->RportName, &vport->fc_portname,
6690 sizeof(struct lpfc_name)) == 0)
6694 /* If this FARP command is searching for my nodename */
6695 if (fp->Mflags & FARP_MATCH_NODE) {
6696 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
6697 sizeof(struct lpfc_name)) == 0)
6702 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
6703 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
6704 /* Log back into the node before sending the FARP. */
6705 if (fp->Rflags & FARP_REQUEST_PLOGI) {
6706 ndlp->nlp_prev_state = ndlp->nlp_state;
6707 lpfc_nlp_set_state(vport, ndlp,
6708 NLP_STE_PLOGI_ISSUE);
6709 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
6712 /* Send a FARP response to that node */
6713 if (fp->Rflags & FARP_REQUEST_FARPR)
6714 lpfc_issue_els_farpr(vport, did, 0);
6721 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
6722 * @vport: pointer to a host virtual N_Port data structure.
6723 * @cmdiocb: pointer to lpfc command iocb data structure.
6724 * @ndlp: pointer to a node-list data structure.
6726 * This routine processes Fibre Channel Address Resolution Protocol
6727 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
6728 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
6729 * the FARP response request.
6732 * 0 - Successfully processed FARPR IOCB (currently always return 0)
6735 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6736 struct lpfc_nodelist *ndlp)
6738 struct lpfc_dmabuf *pcmd;
6743 icmd = &cmdiocb->iocb;
6744 did = icmd->un.elsreq64.remoteID;
6745 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6746 lp = (uint32_t *) pcmd->virt;
6749 /* FARP-RSP received from DID <did> */
6750 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6751 "0600 FARP-RSP received from DID x%x\n", did);
6752 /* ACCEPT the Farp resp request */
6753 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6759 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
6760 * @vport: pointer to a host virtual N_Port data structure.
6761 * @cmdiocb: pointer to lpfc command iocb data structure.
6762 * @fan_ndlp: pointer to a node-list data structure.
6764 * This routine processes a Fabric Address Notification (FAN) IOCB
6765 * command received as an ELS unsolicited event. The FAN ELS command will
6766 * only be processed on a physical port (i.e., the @vport represents the
6767 * physical port). The fabric NodeName and PortName from the FAN IOCB are
6768 * compared against those in the phba data structure. If any of those is
6769 * different, the lpfc_initial_flogi() routine is invoked to initialize
6770 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
6771 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
6772 * is invoked to register login to the fabric.
6775 * 0 - Successfully processed fan iocb (currently always return 0).
6778 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6779 struct lpfc_nodelist *fan_ndlp)
6781 struct lpfc_hba *phba = vport->phba;
6785 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
6786 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
6788 /* FAN received; Fan does not have a reply sequence */
6789 if ((vport == phba->pport) &&
6790 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
6791 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
6792 sizeof(struct lpfc_name))) ||
6793 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
6794 sizeof(struct lpfc_name)))) {
6795 /* This port has switched fabrics. FLOGI is required */
6796 lpfc_issue_init_vfi(vport);
6798 /* FAN verified - skip FLOGI */
6799 vport->fc_myDID = vport->fc_prevDID;
6800 if (phba->sli_rev < LPFC_SLI_REV4)
6801 lpfc_issue_fabric_reglogin(vport);
6803 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6804 "3138 Need register VFI: (x%x/%x)\n",
6805 vport->fc_prevDID, vport->fc_myDID);
6806 lpfc_issue_reg_vfi(vport);
6814 * lpfc_els_timeout - Handler funciton to the els timer
6815 * @ptr: holder for the timer function associated data.
6817 * This routine is invoked by the ELS timer after timeout. It posts the ELS
6818 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
6819 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
6820 * up the worker thread. It is for the worker thread to invoke the routine
6821 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
6824 lpfc_els_timeout(unsigned long ptr)
6826 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
6827 struct lpfc_hba *phba = vport->phba;
6828 uint32_t tmo_posted;
6829 unsigned long iflag;
6831 spin_lock_irqsave(&vport->work_port_lock, iflag);
6832 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
6833 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
6834 vport->work_port_events |= WORKER_ELS_TMO;
6835 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
6837 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
6838 lpfc_worker_wake_up(phba);
6844 * lpfc_els_timeout_handler - Process an els timeout event
6845 * @vport: pointer to a virtual N_Port data structure.
6847 * This routine is the actual handler function that processes an ELS timeout
6848 * event. It walks the ELS ring to get and abort all the IOCBs (except the
6849 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
6850 * invoking the lpfc_sli_issue_abort_iotag() routine.
6853 lpfc_els_timeout_handler(struct lpfc_vport *vport)
6855 struct lpfc_hba *phba = vport->phba;
6856 struct lpfc_sli_ring *pring;
6857 struct lpfc_iocbq *tmp_iocb, *piocb;
6859 struct lpfc_dmabuf *pcmd;
6860 uint32_t els_command = 0;
6862 uint32_t remote_ID = 0xffffffff;
6863 LIST_HEAD(abort_list);
6866 timeout = (uint32_t)(phba->fc_ratov << 1);
6868 pring = &phba->sli.ring[LPFC_ELS_RING];
6869 if ((phba->pport->load_flag & FC_UNLOADING))
6871 spin_lock_irq(&phba->hbalock);
6872 if (phba->sli_rev == LPFC_SLI_REV4)
6873 spin_lock(&pring->ring_lock);
6875 if ((phba->pport->load_flag & FC_UNLOADING)) {
6876 if (phba->sli_rev == LPFC_SLI_REV4)
6877 spin_unlock(&pring->ring_lock);
6878 spin_unlock_irq(&phba->hbalock);
6882 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
6885 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
6886 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
6887 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6890 if (piocb->vport != vport)
6893 pcmd = (struct lpfc_dmabuf *) piocb->context2;
6895 els_command = *(uint32_t *) (pcmd->virt);
6897 if (els_command == ELS_CMD_FARP ||
6898 els_command == ELS_CMD_FARPR ||
6899 els_command == ELS_CMD_FDISC)
6902 if (piocb->drvrTimeout > 0) {
6903 if (piocb->drvrTimeout >= timeout)
6904 piocb->drvrTimeout -= timeout;
6906 piocb->drvrTimeout = 0;
6910 remote_ID = 0xffffffff;
6911 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
6912 remote_ID = cmd->un.elsreq64.remoteID;
6914 struct lpfc_nodelist *ndlp;
6915 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
6916 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
6917 remote_ID = ndlp->nlp_DID;
6919 list_add_tail(&piocb->dlist, &abort_list);
6921 if (phba->sli_rev == LPFC_SLI_REV4)
6922 spin_unlock(&pring->ring_lock);
6923 spin_unlock_irq(&phba->hbalock);
6925 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
6927 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
6928 "0127 ELS timeout Data: x%x x%x x%x "
6929 "x%x\n", els_command,
6930 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
6931 spin_lock_irq(&phba->hbalock);
6932 list_del_init(&piocb->dlist);
6933 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
6934 spin_unlock_irq(&phba->hbalock);
6937 if (!list_empty(&phba->sli.ring[LPFC_ELS_RING].txcmplq))
6938 if (!(phba->pport->load_flag & FC_UNLOADING))
6939 mod_timer(&vport->els_tmofunc,
6940 jiffies + msecs_to_jiffies(1000 * timeout));
6944 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
6945 * @vport: pointer to a host virtual N_Port data structure.
6947 * This routine is used to clean up all the outstanding ELS commands on a
6948 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
6949 * routine. After that, it walks the ELS transmit queue to remove all the
6950 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
6951 * the IOCBs with a non-NULL completion callback function, the callback
6952 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6953 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
6954 * callback function, the IOCB will simply be released. Finally, it walks
6955 * the ELS transmit completion queue to issue an abort IOCB to any transmit
6956 * completion queue IOCB that is associated with the @vport and is not
6957 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
6958 * part of the discovery state machine) out to HBA by invoking the
6959 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
6960 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
6961 * the IOCBs are aborted when this function returns.
6964 lpfc_els_flush_cmd(struct lpfc_vport *vport)
6966 LIST_HEAD(abort_list);
6967 struct lpfc_hba *phba = vport->phba;
6968 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
6969 struct lpfc_iocbq *tmp_iocb, *piocb;
6972 lpfc_fabric_abort_vport(vport);
6974 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
6975 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
6976 * ultimately grabs the ring_lock, the driver must splice the list into
6977 * a working list and release the locks before calling the abort.
6979 spin_lock_irq(&phba->hbalock);
6980 if (phba->sli_rev == LPFC_SLI_REV4)
6981 spin_lock(&pring->ring_lock);
6983 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
6984 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
6987 if (piocb->vport != vport)
6989 list_add_tail(&piocb->dlist, &abort_list);
6991 if (phba->sli_rev == LPFC_SLI_REV4)
6992 spin_unlock(&pring->ring_lock);
6993 spin_unlock_irq(&phba->hbalock);
6994 /* Abort each iocb on the aborted list and remove the dlist links. */
6995 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
6996 spin_lock_irq(&phba->hbalock);
6997 list_del_init(&piocb->dlist);
6998 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
6999 spin_unlock_irq(&phba->hbalock);
7001 if (!list_empty(&abort_list))
7002 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7003 "3387 abort list for txq not empty\n");
7004 INIT_LIST_HEAD(&abort_list);
7006 spin_lock_irq(&phba->hbalock);
7007 if (phba->sli_rev == LPFC_SLI_REV4)
7008 spin_lock(&pring->ring_lock);
7010 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
7013 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
7017 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7018 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
7019 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
7020 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7021 cmd->ulpCommand == CMD_ABORT_XRI_CN)
7024 if (piocb->vport != vport)
7027 list_del_init(&piocb->list);
7028 list_add_tail(&piocb->list, &abort_list);
7030 if (phba->sli_rev == LPFC_SLI_REV4)
7031 spin_unlock(&pring->ring_lock);
7032 spin_unlock_irq(&phba->hbalock);
7034 /* Cancell all the IOCBs from the completions list */
7035 lpfc_sli_cancel_iocbs(phba, &abort_list,
7036 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
7042 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7043 * @phba: pointer to lpfc hba data structure.
7045 * This routine is used to clean up all the outstanding ELS commands on a
7046 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7047 * routine. After that, it walks the ELS transmit queue to remove all the
7048 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7049 * the IOCBs with the completion callback function associated, the callback
7050 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7051 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7052 * callback function associated, the IOCB will simply be released. Finally,
7053 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7054 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7055 * management plane IOCBs that are not part of the discovery state machine)
7056 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7059 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
7061 struct lpfc_vport *vport;
7062 list_for_each_entry(vport, &phba->port_list, listentry)
7063 lpfc_els_flush_cmd(vport);
7069 * lpfc_send_els_failure_event - Posts an ELS command failure event
7070 * @phba: Pointer to hba context object.
7071 * @cmdiocbp: Pointer to command iocb which reported error.
7072 * @rspiocbp: Pointer to response iocb which reported error.
7074 * This function sends an event when there is an ELS command
7078 lpfc_send_els_failure_event(struct lpfc_hba *phba,
7079 struct lpfc_iocbq *cmdiocbp,
7080 struct lpfc_iocbq *rspiocbp)
7082 struct lpfc_vport *vport = cmdiocbp->vport;
7083 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7084 struct lpfc_lsrjt_event lsrjt_event;
7085 struct lpfc_fabric_event_header fabric_event;
7087 struct lpfc_nodelist *ndlp;
7090 ndlp = cmdiocbp->context1;
7091 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
7094 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
7095 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
7096 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
7097 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
7098 sizeof(struct lpfc_name));
7099 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
7100 sizeof(struct lpfc_name));
7101 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7102 cmdiocbp->context2)->virt);
7103 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
7104 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
7105 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
7106 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
7107 fc_host_post_vendor_event(shost,
7108 fc_get_event_number(),
7109 sizeof(lsrjt_event),
7110 (char *)&lsrjt_event,
7114 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
7115 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
7116 fabric_event.event_type = FC_REG_FABRIC_EVENT;
7117 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
7118 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
7120 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
7121 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
7122 sizeof(struct lpfc_name));
7123 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
7124 sizeof(struct lpfc_name));
7125 fc_host_post_vendor_event(shost,
7126 fc_get_event_number(),
7127 sizeof(fabric_event),
7128 (char *)&fabric_event,
7136 * lpfc_send_els_event - Posts unsolicited els event
7137 * @vport: Pointer to vport object.
7138 * @ndlp: Pointer FC node object.
7139 * @cmd: ELS command code.
7141 * This function posts an event when there is an incoming
7142 * unsolicited ELS command.
7145 lpfc_send_els_event(struct lpfc_vport *vport,
7146 struct lpfc_nodelist *ndlp,
7149 struct lpfc_els_event_header *els_data = NULL;
7150 struct lpfc_logo_event *logo_data = NULL;
7151 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7153 if (*payload == ELS_CMD_LOGO) {
7154 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
7156 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7157 "0148 Failed to allocate memory "
7158 "for LOGO event\n");
7161 els_data = &logo_data->header;
7163 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
7166 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7167 "0149 Failed to allocate memory "
7172 els_data->event_type = FC_REG_ELS_EVENT;
7175 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
7178 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
7181 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
7184 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
7185 /* Copy the WWPN in the LOGO payload */
7186 memcpy(logo_data->logo_wwpn, &payload[2],
7187 sizeof(struct lpfc_name));
7193 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
7194 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
7195 if (*payload == ELS_CMD_LOGO) {
7196 fc_host_post_vendor_event(shost,
7197 fc_get_event_number(),
7198 sizeof(struct lpfc_logo_event),
7203 fc_host_post_vendor_event(shost,
7204 fc_get_event_number(),
7205 sizeof(struct lpfc_els_event_header),
7216 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7217 * @phba: pointer to lpfc hba data structure.
7218 * @pring: pointer to a SLI ring.
7219 * @vport: pointer to a host virtual N_Port data structure.
7220 * @elsiocb: pointer to lpfc els command iocb data structure.
7222 * This routine is used for processing the IOCB associated with a unsolicited
7223 * event. It first determines whether there is an existing ndlp that matches
7224 * the DID from the unsolicited IOCB. If not, it will create a new one with
7225 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7226 * IOCB is then used to invoke the proper routine and to set up proper state
7227 * of the discovery state machine.
7230 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7231 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
7233 struct Scsi_Host *shost;
7234 struct lpfc_nodelist *ndlp;
7237 uint32_t cmd, did, newnode;
7238 uint8_t rjt_exp, rjt_err = 0;
7239 IOCB_t *icmd = &elsiocb->iocb;
7241 if (!vport || !(elsiocb->context2))
7245 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
7247 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
7248 lpfc_post_buffer(phba, pring, 1);
7250 did = icmd->un.rcvels.remoteID;
7251 if (icmd->ulpStatus) {
7252 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7253 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7254 icmd->ulpStatus, icmd->un.ulpWord[4], did);
7258 /* Check to see if link went down during discovery */
7259 if (lpfc_els_chk_latt(vport))
7262 /* Ignore traffic received during vport shutdown. */
7263 if (vport->load_flag & FC_UNLOADING)
7266 /* If NPort discovery is delayed drop incoming ELS */
7267 if ((vport->fc_flag & FC_DISC_DELAYED) &&
7268 (cmd != ELS_CMD_PLOGI))
7271 ndlp = lpfc_findnode_did(vport, did);
7273 /* Cannot find existing Fabric ndlp, so allocate a new one */
7274 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7278 lpfc_nlp_init(vport, ndlp, did);
7279 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7281 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7282 ndlp->nlp_type |= NLP_FABRIC;
7283 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7284 ndlp = lpfc_enable_node(vport, ndlp,
7285 NLP_STE_UNUSED_NODE);
7288 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7290 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7291 ndlp->nlp_type |= NLP_FABRIC;
7292 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
7293 /* This is similar to the new node path */
7294 ndlp = lpfc_nlp_get(ndlp);
7297 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7301 phba->fc_stat.elsRcvFrame++;
7304 * Do not process any unsolicited ELS commands
7305 * if the ndlp is in DEV_LOSS
7307 shost = lpfc_shost_from_vport(vport);
7308 spin_lock_irq(shost->host_lock);
7309 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
7310 spin_unlock_irq(shost->host_lock);
7313 spin_unlock_irq(shost->host_lock);
7315 elsiocb->context1 = lpfc_nlp_get(ndlp);
7316 elsiocb->vport = vport;
7318 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
7319 cmd &= ELS_CMD_MASK;
7321 /* ELS command <elsCmd> received from NPORT <did> */
7322 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7323 "0112 ELS command x%x received from NPORT x%x "
7324 "Data: x%x x%x x%x x%x\n",
7325 cmd, did, vport->port_state, vport->fc_flag,
7326 vport->fc_myDID, vport->fc_prevDID);
7329 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7330 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7331 did, vport->port_state, ndlp->nlp_flag);
7333 phba->fc_stat.elsRcvPLOGI++;
7334 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
7335 if (phba->sli_rev == LPFC_SLI_REV4 &&
7336 (phba->pport->fc_flag & FC_PT2PT)) {
7337 vport->fc_prevDID = vport->fc_myDID;
7338 /* Our DID needs to be updated before registering
7339 * the vfi. This is done in lpfc_rcv_plogi but
7340 * that is called after the reg_vfi.
7342 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
7343 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7344 "3312 Remote port assigned DID x%x "
7345 "%x\n", vport->fc_myDID,
7349 lpfc_send_els_event(vport, ndlp, payload);
7351 /* If Nport discovery is delayed, reject PLOGIs */
7352 if (vport->fc_flag & FC_DISC_DELAYED) {
7353 rjt_err = LSRJT_UNABLE_TPC;
7354 rjt_exp = LSEXP_NOTHING_MORE;
7357 if (vport->port_state < LPFC_DISC_AUTH) {
7358 if (!(phba->pport->fc_flag & FC_PT2PT) ||
7359 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
7360 rjt_err = LSRJT_UNABLE_TPC;
7361 rjt_exp = LSEXP_NOTHING_MORE;
7364 /* We get here, and drop thru, if we are PT2PT with
7365 * another NPort and the other side has initiated
7366 * the PLOGI before responding to our FLOGI.
7368 if (phba->sli_rev == LPFC_SLI_REV4 &&
7369 (phba->fc_topology_changed ||
7370 vport->fc_myDID != vport->fc_prevDID)) {
7371 lpfc_unregister_fcf_prep(phba);
7372 spin_lock_irq(shost->host_lock);
7373 vport->fc_flag &= ~FC_VFI_REGISTERED;
7374 spin_unlock_irq(shost->host_lock);
7375 phba->fc_topology_changed = 0;
7376 lpfc_issue_reg_vfi(vport);
7380 spin_lock_irq(shost->host_lock);
7381 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
7382 spin_unlock_irq(shost->host_lock);
7384 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7389 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7390 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7391 did, vport->port_state, ndlp->nlp_flag);
7393 phba->fc_stat.elsRcvFLOGI++;
7394 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
7399 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7400 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7401 did, vport->port_state, ndlp->nlp_flag);
7403 phba->fc_stat.elsRcvLOGO++;
7404 lpfc_send_els_event(vport, ndlp, payload);
7405 if (vport->port_state < LPFC_DISC_AUTH) {
7406 rjt_err = LSRJT_UNABLE_TPC;
7407 rjt_exp = LSEXP_NOTHING_MORE;
7410 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
7413 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7414 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7415 did, vport->port_state, ndlp->nlp_flag);
7417 phba->fc_stat.elsRcvPRLO++;
7418 lpfc_send_els_event(vport, ndlp, payload);
7419 if (vport->port_state < LPFC_DISC_AUTH) {
7420 rjt_err = LSRJT_UNABLE_TPC;
7421 rjt_exp = LSEXP_NOTHING_MORE;
7424 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
7427 phba->fc_stat.elsRcvLCB++;
7428 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
7431 phba->fc_stat.elsRcvRDP++;
7432 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
7435 phba->fc_stat.elsRcvRSCN++;
7436 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
7441 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7442 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7443 did, vport->port_state, ndlp->nlp_flag);
7445 lpfc_send_els_event(vport, ndlp, payload);
7446 phba->fc_stat.elsRcvADISC++;
7447 if (vport->port_state < LPFC_DISC_AUTH) {
7448 rjt_err = LSRJT_UNABLE_TPC;
7449 rjt_exp = LSEXP_NOTHING_MORE;
7452 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7456 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7457 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7458 did, vport->port_state, ndlp->nlp_flag);
7460 phba->fc_stat.elsRcvPDISC++;
7461 if (vport->port_state < LPFC_DISC_AUTH) {
7462 rjt_err = LSRJT_UNABLE_TPC;
7463 rjt_exp = LSEXP_NOTHING_MORE;
7466 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7470 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7471 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7472 did, vport->port_state, ndlp->nlp_flag);
7474 phba->fc_stat.elsRcvFARPR++;
7475 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
7478 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7479 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7480 did, vport->port_state, ndlp->nlp_flag);
7482 phba->fc_stat.elsRcvFARP++;
7483 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
7486 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7487 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7488 did, vport->port_state, ndlp->nlp_flag);
7490 phba->fc_stat.elsRcvFAN++;
7491 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
7494 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7495 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7496 did, vport->port_state, ndlp->nlp_flag);
7498 phba->fc_stat.elsRcvPRLI++;
7499 if (vport->port_state < LPFC_DISC_AUTH) {
7500 rjt_err = LSRJT_UNABLE_TPC;
7501 rjt_exp = LSEXP_NOTHING_MORE;
7504 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
7507 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7508 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7509 did, vport->port_state, ndlp->nlp_flag);
7511 phba->fc_stat.elsRcvLIRR++;
7512 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
7517 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7518 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7519 did, vport->port_state, ndlp->nlp_flag);
7521 phba->fc_stat.elsRcvRLS++;
7522 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
7527 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7528 "RCV RPS: did:x%x/ste:x%x flg:x%x",
7529 did, vport->port_state, ndlp->nlp_flag);
7531 phba->fc_stat.elsRcvRPS++;
7532 lpfc_els_rcv_rps(vport, elsiocb, ndlp);
7537 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7538 "RCV RPL: did:x%x/ste:x%x flg:x%x",
7539 did, vport->port_state, ndlp->nlp_flag);
7541 phba->fc_stat.elsRcvRPL++;
7542 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
7547 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7548 "RCV RNID: did:x%x/ste:x%x flg:x%x",
7549 did, vport->port_state, ndlp->nlp_flag);
7551 phba->fc_stat.elsRcvRNID++;
7552 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
7557 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7558 "RCV RTV: did:x%x/ste:x%x flg:x%x",
7559 did, vport->port_state, ndlp->nlp_flag);
7560 phba->fc_stat.elsRcvRTV++;
7561 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
7566 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7567 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
7568 did, vport->port_state, ndlp->nlp_flag);
7570 phba->fc_stat.elsRcvRRQ++;
7571 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
7576 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7577 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
7578 did, vport->port_state, ndlp->nlp_flag);
7580 phba->fc_stat.elsRcvECHO++;
7581 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
7586 /* receive this due to exchange closed */
7587 rjt_err = LSRJT_UNABLE_TPC;
7588 rjt_exp = LSEXP_INVALID_OX_RX;
7591 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7592 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
7593 cmd, did, vport->port_state);
7595 /* Unsupported ELS command, reject */
7596 rjt_err = LSRJT_CMD_UNSUPPORTED;
7597 rjt_exp = LSEXP_NOTHING_MORE;
7599 /* Unknown ELS command <elsCmd> received from NPORT <did> */
7600 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7601 "0115 Unknown ELS command x%x "
7602 "received from NPORT x%x\n", cmd, did);
7608 /* check if need to LS_RJT received ELS cmd */
7610 memset(&stat, 0, sizeof(stat));
7611 stat.un.b.lsRjtRsnCode = rjt_err;
7612 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
7613 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
7617 lpfc_nlp_put(elsiocb->context1);
7618 elsiocb->context1 = NULL;
7622 if (vport && !(vport->load_flag & FC_UNLOADING))
7623 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7624 "0111 Dropping received ELS cmd "
7625 "Data: x%x x%x x%x\n",
7626 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
7627 phba->fc_stat.elsRcvDrop++;
7631 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7632 * @phba: pointer to lpfc hba data structure.
7633 * @pring: pointer to a SLI ring.
7634 * @elsiocb: pointer to lpfc els iocb data structure.
7636 * This routine is used to process an unsolicited event received from a SLI
7637 * (Service Level Interface) ring. The actual processing of the data buffer
7638 * associated with the unsolicited event is done by invoking the routine
7639 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7640 * SLI ring on which the unsolicited event was received.
7643 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7644 struct lpfc_iocbq *elsiocb)
7646 struct lpfc_vport *vport = phba->pport;
7647 IOCB_t *icmd = &elsiocb->iocb;
7649 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
7650 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
7652 elsiocb->context1 = NULL;
7653 elsiocb->context2 = NULL;
7654 elsiocb->context3 = NULL;
7656 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
7657 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
7658 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
7659 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
7660 IOERR_RCV_BUFFER_WAITING) {
7661 phba->fc_stat.NoRcvBuf++;
7662 /* Not enough posted buffers; Try posting more buffers */
7663 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
7664 lpfc_post_buffer(phba, pring, 0);
7668 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
7669 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
7670 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
7671 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
7672 vport = phba->pport;
7674 vport = lpfc_find_vport_by_vpid(phba,
7675 icmd->unsli3.rcvsli3.vpi);
7678 /* If there are no BDEs associated
7679 * with this IOCB, there is nothing to do.
7681 if (icmd->ulpBdeCount == 0)
7684 /* type of ELS cmd is first 32bit word
7687 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
7688 elsiocb->context2 = bdeBuf1;
7690 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
7691 icmd->un.cont64[0].addrLow);
7692 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
7696 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7698 * The different unsolicited event handlers would tell us
7699 * if they are done with "mp" by setting context2 to NULL.
7701 if (elsiocb->context2) {
7702 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
7703 elsiocb->context2 = NULL;
7706 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7707 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
7708 icmd->ulpBdeCount == 2) {
7709 elsiocb->context2 = bdeBuf2;
7710 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7711 /* free mp if we are done with it */
7712 if (elsiocb->context2) {
7713 lpfc_in_buf_free(phba, elsiocb->context2);
7714 elsiocb->context2 = NULL;
7720 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
7721 * @phba: pointer to lpfc hba data structure.
7722 * @vport: pointer to a virtual N_Port data structure.
7724 * This routine issues a Port Login (PLOGI) to the Name Server with
7725 * State Change Request (SCR) for a @vport. This routine will create an
7726 * ndlp for the Name Server associated to the @vport if such node does
7727 * not already exist. The PLOGI to Name Server is issued by invoking the
7728 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
7729 * (FDMI) is configured to the @vport, a FDMI node will be created and
7730 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
7733 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
7735 struct lpfc_nodelist *ndlp, *ndlp_fdmi;
7736 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7739 * If lpfc_delay_discovery parameter is set and the clean address
7740 * bit is cleared and fc fabric parameters chenged, delay FC NPort
7743 spin_lock_irq(shost->host_lock);
7744 if (vport->fc_flag & FC_DISC_DELAYED) {
7745 spin_unlock_irq(shost->host_lock);
7746 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
7747 "3334 Delay fc port discovery for %d seconds\n",
7749 mod_timer(&vport->delayed_disc_tmo,
7750 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
7753 spin_unlock_irq(shost->host_lock);
7755 ndlp = lpfc_findnode_did(vport, NameServer_DID);
7757 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7759 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7760 lpfc_disc_start(vport);
7763 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7764 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7765 "0251 NameServer login: no memory\n");
7768 lpfc_nlp_init(vport, ndlp, NameServer_DID);
7769 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7770 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
7772 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7773 lpfc_disc_start(vport);
7776 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7777 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7778 "0348 NameServer login: node freed\n");
7782 ndlp->nlp_type |= NLP_FABRIC;
7784 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
7786 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
7787 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7788 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7789 "0252 Cannot issue NameServer login\n");
7793 if (vport->cfg_fdmi_on & LPFC_FDMI_SUPPORT) {
7794 /* If this is the first time, allocate an ndlp and initialize
7795 * it. Otherwise, make sure the node is enabled and then do the
7798 ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID);
7800 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
7803 lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID);
7804 ndlp_fdmi->nlp_type |= NLP_FABRIC;
7808 if (!NLP_CHK_NODE_ACT(ndlp_fdmi))
7809 ndlp_fdmi = lpfc_enable_node(vport,
7814 lpfc_nlp_set_state(vport, ndlp_fdmi,
7815 NLP_STE_PLOGI_ISSUE);
7816 lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0);
7822 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
7823 * @phba: pointer to lpfc hba data structure.
7824 * @pmb: pointer to the driver internal queue element for mailbox command.
7826 * This routine is the completion callback function to register new vport
7827 * mailbox command. If the new vport mailbox command completes successfully,
7828 * the fabric registration login shall be performed on physical port (the
7829 * new vport created is actually a physical port, with VPI 0) or the port
7830 * login to Name Server for State Change Request (SCR) will be performed
7831 * on virtual port (real virtual port, with VPI greater than 0).
7834 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7836 struct lpfc_vport *vport = pmb->vport;
7837 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7838 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
7839 MAILBOX_t *mb = &pmb->u.mb;
7842 spin_lock_irq(shost->host_lock);
7843 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
7844 spin_unlock_irq(shost->host_lock);
7846 if (mb->mbxStatus) {
7847 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
7848 "0915 Register VPI failed : Status: x%x"
7849 " upd bit: x%x \n", mb->mbxStatus,
7850 mb->un.varRegVpi.upd);
7851 if (phba->sli_rev == LPFC_SLI_REV4 &&
7852 mb->un.varRegVpi.upd)
7853 goto mbox_err_exit ;
7855 switch (mb->mbxStatus) {
7856 case 0x11: /* unsupported feature */
7857 case 0x9603: /* max_vpi exceeded */
7858 case 0x9602: /* Link event since CLEAR_LA */
7859 /* giving up on vport registration */
7860 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7861 spin_lock_irq(shost->host_lock);
7862 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
7863 spin_unlock_irq(shost->host_lock);
7864 lpfc_can_disctmo(vport);
7866 /* If reg_vpi fail with invalid VPI status, re-init VPI */
7868 spin_lock_irq(shost->host_lock);
7869 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7870 spin_unlock_irq(shost->host_lock);
7871 lpfc_init_vpi(phba, pmb, vport->vpi);
7873 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
7874 rc = lpfc_sli_issue_mbox(phba, pmb,
7876 if (rc == MBX_NOT_FINISHED) {
7877 lpfc_printf_vlog(vport,
7879 "2732 Failed to issue INIT_VPI"
7880 " mailbox command\n");
7887 /* Try to recover from this error */
7888 if (phba->sli_rev == LPFC_SLI_REV4)
7889 lpfc_sli4_unreg_all_rpis(vport);
7890 lpfc_mbx_unreg_vpi(vport);
7891 spin_lock_irq(shost->host_lock);
7892 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7893 spin_unlock_irq(shost->host_lock);
7894 if (vport->port_type == LPFC_PHYSICAL_PORT
7895 && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
7896 lpfc_issue_init_vfi(vport);
7898 lpfc_initial_fdisc(vport);
7902 spin_lock_irq(shost->host_lock);
7903 vport->vpi_state |= LPFC_VPI_REGISTERED;
7904 spin_unlock_irq(shost->host_lock);
7905 if (vport == phba->pport) {
7906 if (phba->sli_rev < LPFC_SLI_REV4)
7907 lpfc_issue_fabric_reglogin(vport);
7910 * If the physical port is instantiated using
7911 * FDISC, do not start vport discovery.
7913 if (vport->port_state != LPFC_FDISC)
7914 lpfc_start_fdiscs(phba);
7915 lpfc_do_scr_ns_plogi(phba, vport);
7918 lpfc_do_scr_ns_plogi(phba, vport);
7921 /* Now, we decrement the ndlp reference count held for this
7926 mempool_free(pmb, phba->mbox_mem_pool);
7931 * lpfc_register_new_vport - Register a new vport with a HBA
7932 * @phba: pointer to lpfc hba data structure.
7933 * @vport: pointer to a host virtual N_Port data structure.
7934 * @ndlp: pointer to a node-list data structure.
7936 * This routine registers the @vport as a new virtual port with a HBA.
7937 * It is done through a registering vpi mailbox command.
7940 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
7941 struct lpfc_nodelist *ndlp)
7943 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7946 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7948 lpfc_reg_vpi(vport, mbox);
7949 mbox->vport = vport;
7950 mbox->context2 = lpfc_nlp_get(ndlp);
7951 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
7952 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
7953 == MBX_NOT_FINISHED) {
7954 /* mailbox command not success, decrement ndlp
7955 * reference count for this command
7958 mempool_free(mbox, phba->mbox_mem_pool);
7960 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
7961 "0253 Register VPI: Can't send mbox\n");
7965 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
7966 "0254 Register VPI: no memory\n");
7972 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7973 spin_lock_irq(shost->host_lock);
7974 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
7975 spin_unlock_irq(shost->host_lock);
7980 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
7981 * @phba: pointer to lpfc hba data structure.
7983 * This routine cancels the retry delay timers to all the vports.
7986 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
7988 struct lpfc_vport **vports;
7989 struct lpfc_nodelist *ndlp;
7990 uint32_t link_state;
7993 /* Treat this failure as linkdown for all vports */
7994 link_state = phba->link_state;
7995 lpfc_linkdown(phba);
7996 phba->link_state = link_state;
7998 vports = lpfc_create_vport_work_array(phba);
8001 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8002 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
8004 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
8005 lpfc_els_flush_cmd(vports[i]);
8007 lpfc_destroy_vport_work_array(phba, vports);
8012 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8013 * @phba: pointer to lpfc hba data structure.
8015 * This routine abort all pending discovery commands and
8016 * start a timer to retry FLOGI for the physical port
8020 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
8022 struct lpfc_nodelist *ndlp;
8023 struct Scsi_Host *shost;
8025 /* Cancel the all vports retry delay retry timers */
8026 lpfc_cancel_all_vport_retry_delay_timer(phba);
8028 /* If fabric require FLOGI, then re-instantiate physical login */
8029 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
8033 shost = lpfc_shost_from_vport(phba->pport);
8034 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
8035 spin_lock_irq(shost->host_lock);
8036 ndlp->nlp_flag |= NLP_DELAY_TMO;
8037 spin_unlock_irq(shost->host_lock);
8038 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
8039 phba->pport->port_state = LPFC_FLOGI;
8044 * lpfc_fabric_login_reqd - Check if FLOGI required.
8045 * @phba: pointer to lpfc hba data structure.
8046 * @cmdiocb: pointer to FDISC command iocb.
8047 * @rspiocb: pointer to FDISC response iocb.
8049 * This routine checks if a FLOGI is reguired for FDISC
8053 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
8054 struct lpfc_iocbq *cmdiocb,
8055 struct lpfc_iocbq *rspiocb)
8058 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
8059 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
8066 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8067 * @phba: pointer to lpfc hba data structure.
8068 * @cmdiocb: pointer to lpfc command iocb data structure.
8069 * @rspiocb: pointer to lpfc response iocb data structure.
8071 * This routine is the completion callback function to a Fabric Discover
8072 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8073 * single threaded, each FDISC completion callback function will reset
8074 * the discovery timer for all vports such that the timers will not get
8075 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8076 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8077 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8078 * assigned to the vport has been changed with the completion of the FDISC
8079 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8080 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8081 * routine is invoked to register new vport with the HBA. Otherwise, the
8082 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8083 * Server for State Change Request (SCR).
8086 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8087 struct lpfc_iocbq *rspiocb)
8089 struct lpfc_vport *vport = cmdiocb->vport;
8090 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8091 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
8092 struct lpfc_nodelist *np;
8093 struct lpfc_nodelist *next_np;
8094 IOCB_t *irsp = &rspiocb->iocb;
8095 struct lpfc_iocbq *piocb;
8096 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
8097 struct serv_parm *sp;
8098 uint8_t fabric_param_changed;
8100 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8101 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8102 irsp->ulpStatus, irsp->un.ulpWord[4],
8104 /* Since all FDISCs are being single threaded, we
8105 * must reset the discovery timer for ALL vports
8106 * waiting to send FDISC when one completes.
8108 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
8109 lpfc_set_disctmo(piocb->vport);
8112 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8113 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8114 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
8116 if (irsp->ulpStatus) {
8118 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
8119 lpfc_retry_pport_discovery(phba);
8123 /* Check for retry */
8124 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
8127 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8128 "0126 FDISC failed. (x%x/x%x)\n",
8129 irsp->ulpStatus, irsp->un.ulpWord[4]);
8132 spin_lock_irq(shost->host_lock);
8133 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
8134 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
8135 vport->fc_flag |= FC_FABRIC;
8136 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
8137 vport->fc_flag |= FC_PUBLIC_LOOP;
8138 spin_unlock_irq(shost->host_lock);
8140 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
8141 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
8142 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
8145 sp = prsp->virt + sizeof(uint32_t);
8146 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
8147 memcpy(&vport->fabric_portname, &sp->portName,
8148 sizeof(struct lpfc_name));
8149 memcpy(&vport->fabric_nodename, &sp->nodeName,
8150 sizeof(struct lpfc_name));
8151 if (fabric_param_changed &&
8152 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8153 /* If our NportID changed, we need to ensure all
8154 * remaining NPORTs get unreg_login'ed so we can
8157 list_for_each_entry_safe(np, next_np,
8158 &vport->fc_nodes, nlp_listp) {
8159 if (!NLP_CHK_NODE_ACT(ndlp) ||
8160 (np->nlp_state != NLP_STE_NPR_NODE) ||
8161 !(np->nlp_flag & NLP_NPR_ADISC))
8163 spin_lock_irq(shost->host_lock);
8164 np->nlp_flag &= ~NLP_NPR_ADISC;
8165 spin_unlock_irq(shost->host_lock);
8166 lpfc_unreg_rpi(vport, np);
8168 lpfc_cleanup_pending_mbox(vport);
8170 if (phba->sli_rev == LPFC_SLI_REV4)
8171 lpfc_sli4_unreg_all_rpis(vport);
8173 lpfc_mbx_unreg_vpi(vport);
8174 spin_lock_irq(shost->host_lock);
8175 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8176 if (phba->sli_rev == LPFC_SLI_REV4)
8177 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
8179 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
8180 spin_unlock_irq(shost->host_lock);
8181 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
8182 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8184 * Driver needs to re-reg VPI in order for f/w
8185 * to update the MAC address.
8187 lpfc_register_new_vport(phba, vport, ndlp);
8191 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
8192 lpfc_issue_init_vpi(vport);
8193 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
8194 lpfc_register_new_vport(phba, vport, ndlp);
8196 lpfc_do_scr_ns_plogi(phba, vport);
8199 if (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)
8200 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8201 /* Cancel discovery timer */
8202 lpfc_can_disctmo(vport);
8205 lpfc_els_free_iocb(phba, cmdiocb);
8209 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8210 * @vport: pointer to a virtual N_Port data structure.
8211 * @ndlp: pointer to a node-list data structure.
8212 * @retry: number of retries to the command IOCB.
8214 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8215 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8216 * routine to issue the IOCB, which makes sure only one outstanding fabric
8217 * IOCB will be sent off HBA at any given time.
8219 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8220 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8221 * will be stored into the context1 field of the IOCB for the completion
8222 * callback function to the FDISC ELS command.
8225 * 0 - Successfully issued fdisc iocb command
8226 * 1 - Failed to issue fdisc iocb command
8229 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
8232 struct lpfc_hba *phba = vport->phba;
8234 struct lpfc_iocbq *elsiocb;
8235 struct serv_parm *sp;
8238 int did = ndlp->nlp_DID;
8241 vport->port_state = LPFC_FDISC;
8242 vport->fc_myDID = 0;
8243 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
8244 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
8247 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8248 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8249 "0255 Issue FDISC: no IOCB\n");
8253 icmd = &elsiocb->iocb;
8254 icmd->un.elsreq64.myID = 0;
8255 icmd->un.elsreq64.fl = 1;
8258 * SLI3 ports require a different context type value than SLI4.
8259 * Catch SLI3 ports here and override the prep.
8261 if (phba->sli_rev == LPFC_SLI_REV3) {
8266 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8267 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
8268 pcmd += sizeof(uint32_t); /* CSP Word 1 */
8269 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
8270 sp = (struct serv_parm *) pcmd;
8271 /* Setup CSPs accordingly for Fabric */
8272 sp->cmn.e_d_tov = 0;
8273 sp->cmn.w2.r_a_tov = 0;
8274 sp->cmn.virtual_fabric_support = 0;
8275 sp->cls1.classValid = 0;
8276 sp->cls2.seqDelivery = 1;
8277 sp->cls3.seqDelivery = 1;
8279 pcmd += sizeof(uint32_t); /* CSP Word 2 */
8280 pcmd += sizeof(uint32_t); /* CSP Word 3 */
8281 pcmd += sizeof(uint32_t); /* CSP Word 4 */
8282 pcmd += sizeof(uint32_t); /* Port Name */
8283 memcpy(pcmd, &vport->fc_portname, 8);
8284 pcmd += sizeof(uint32_t); /* Node Name */
8285 pcmd += sizeof(uint32_t); /* Node Name */
8286 memcpy(pcmd, &vport->fc_nodename, 8);
8288 lpfc_set_disctmo(vport);
8290 phba->fc_stat.elsXmitFDISC++;
8291 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
8293 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8294 "Issue FDISC: did:x%x",
8297 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
8298 if (rc == IOCB_ERROR) {
8299 lpfc_els_free_iocb(phba, elsiocb);
8300 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8301 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8302 "0256 Issue FDISC: Cannot send IOCB\n");
8305 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
8310 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8311 * @phba: pointer to lpfc hba data structure.
8312 * @cmdiocb: pointer to lpfc command iocb data structure.
8313 * @rspiocb: pointer to lpfc response iocb data structure.
8315 * This routine is the completion callback function to the issuing of a LOGO
8316 * ELS command off a vport. It frees the command IOCB and then decrement the
8317 * reference count held on ndlp for this completion function, indicating that
8318 * the reference to the ndlp is no long needed. Note that the
8319 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8320 * callback function and an additional explicit ndlp reference decrementation
8321 * will trigger the actual release of the ndlp.
8324 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8325 struct lpfc_iocbq *rspiocb)
8327 struct lpfc_vport *vport = cmdiocb->vport;
8329 struct lpfc_nodelist *ndlp;
8330 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8332 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
8333 irsp = &rspiocb->iocb;
8334 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8335 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8336 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
8338 lpfc_els_free_iocb(phba, cmdiocb);
8339 vport->unreg_vpi_cmpl = VPORT_ERROR;
8341 /* Trigger the release of the ndlp after logo */
8344 /* NPIV LOGO completes to NPort <nlp_DID> */
8345 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8346 "2928 NPIV LOGO completes to NPort x%x "
8347 "Data: x%x x%x x%x x%x\n",
8348 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
8349 irsp->ulpTimeout, vport->num_disc_nodes);
8351 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
8352 spin_lock_irq(shost->host_lock);
8353 vport->fc_flag &= ~FC_NDISC_ACTIVE;
8354 vport->fc_flag &= ~FC_FABRIC;
8355 spin_unlock_irq(shost->host_lock);
8356 lpfc_can_disctmo(vport);
8361 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8362 * @vport: pointer to a virtual N_Port data structure.
8363 * @ndlp: pointer to a node-list data structure.
8365 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8367 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8368 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8369 * will be stored into the context1 field of the IOCB for the completion
8370 * callback function to the LOGO ELS command.
8373 * 0 - Successfully issued logo off the @vport
8374 * 1 - Failed to issue logo off the @vport
8377 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
8379 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8380 struct lpfc_hba *phba = vport->phba;
8381 struct lpfc_iocbq *elsiocb;
8385 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
8386 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
8391 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8392 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
8393 pcmd += sizeof(uint32_t);
8395 /* Fill in LOGO payload */
8396 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
8397 pcmd += sizeof(uint32_t);
8398 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
8400 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8401 "Issue LOGO npiv did:x%x flg:x%x",
8402 ndlp->nlp_DID, ndlp->nlp_flag, 0);
8404 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
8405 spin_lock_irq(shost->host_lock);
8406 ndlp->nlp_flag |= NLP_LOGO_SND;
8407 spin_unlock_irq(shost->host_lock);
8408 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
8410 spin_lock_irq(shost->host_lock);
8411 ndlp->nlp_flag &= ~NLP_LOGO_SND;
8412 spin_unlock_irq(shost->host_lock);
8413 lpfc_els_free_iocb(phba, elsiocb);
8420 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8421 * @ptr: holder for the timer function associated data.
8423 * This routine is invoked by the fabric iocb block timer after
8424 * timeout. It posts the fabric iocb block timeout event by setting the
8425 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8426 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8427 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8428 * posted event WORKER_FABRIC_BLOCK_TMO.
8431 lpfc_fabric_block_timeout(unsigned long ptr)
8433 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
8434 unsigned long iflags;
8435 uint32_t tmo_posted;
8437 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8438 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
8440 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
8441 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8444 lpfc_worker_wake_up(phba);
8449 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8450 * @phba: pointer to lpfc hba data structure.
8452 * This routine issues one fabric iocb from the driver internal list to
8453 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8454 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8455 * remove one pending fabric iocb from the driver internal list and invokes
8456 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8459 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
8461 struct lpfc_iocbq *iocb;
8462 unsigned long iflags;
8468 spin_lock_irqsave(&phba->hbalock, iflags);
8469 /* Post any pending iocb to the SLI layer */
8470 if (atomic_read(&phba->fabric_iocb_count) == 0) {
8471 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
8474 /* Increment fabric iocb count to hold the position */
8475 atomic_inc(&phba->fabric_iocb_count);
8477 spin_unlock_irqrestore(&phba->hbalock, iflags);
8479 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8480 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8481 iocb->iocb_flag |= LPFC_IO_FABRIC;
8483 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8484 "Fabric sched1: ste:x%x",
8485 iocb->vport->port_state, 0, 0);
8487 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8489 if (ret == IOCB_ERROR) {
8490 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8491 iocb->fabric_iocb_cmpl = NULL;
8492 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8494 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
8495 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
8496 iocb->iocb_cmpl(phba, iocb, iocb);
8498 atomic_dec(&phba->fabric_iocb_count);
8507 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
8508 * @phba: pointer to lpfc hba data structure.
8510 * This routine unblocks the issuing fabric iocb command. The function
8511 * will clear the fabric iocb block bit and then invoke the routine
8512 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
8513 * from the driver internal fabric iocb list.
8516 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
8518 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8520 lpfc_resume_fabric_iocbs(phba);
8525 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
8526 * @phba: pointer to lpfc hba data structure.
8528 * This routine blocks the issuing fabric iocb for a specified amount of
8529 * time (currently 100 ms). This is done by set the fabric iocb block bit
8530 * and set up a timeout timer for 100ms. When the block bit is set, no more
8531 * fabric iocb will be issued out of the HBA.
8534 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
8538 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8539 /* Start a timer to unblock fabric iocbs after 100ms */
8541 mod_timer(&phba->fabric_block_timer,
8542 jiffies + msecs_to_jiffies(100));
8548 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
8549 * @phba: pointer to lpfc hba data structure.
8550 * @cmdiocb: pointer to lpfc command iocb data structure.
8551 * @rspiocb: pointer to lpfc response iocb data structure.
8553 * This routine is the callback function that is put to the fabric iocb's
8554 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
8555 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
8556 * function first restores and invokes the original iocb's callback function
8557 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
8558 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
8561 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8562 struct lpfc_iocbq *rspiocb)
8566 if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC)
8569 switch (rspiocb->iocb.ulpStatus) {
8570 case IOSTAT_NPORT_RJT:
8571 case IOSTAT_FABRIC_RJT:
8572 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
8573 lpfc_block_fabric_iocbs(phba);
8577 case IOSTAT_NPORT_BSY:
8578 case IOSTAT_FABRIC_BSY:
8579 lpfc_block_fabric_iocbs(phba);
8583 stat.un.lsRjtError =
8584 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
8585 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
8586 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
8587 lpfc_block_fabric_iocbs(phba);
8591 if (atomic_read(&phba->fabric_iocb_count) == 0)
8594 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
8595 cmdiocb->fabric_iocb_cmpl = NULL;
8596 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
8597 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
8599 atomic_dec(&phba->fabric_iocb_count);
8600 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
8601 /* Post any pending iocbs to HBA */
8602 lpfc_resume_fabric_iocbs(phba);
8607 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
8608 * @phba: pointer to lpfc hba data structure.
8609 * @iocb: pointer to lpfc command iocb data structure.
8611 * This routine is used as the top-level API for issuing a fabric iocb command
8612 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
8613 * function makes sure that only one fabric bound iocb will be outstanding at
8614 * any given time. As such, this function will first check to see whether there
8615 * is already an outstanding fabric iocb on the wire. If so, it will put the
8616 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8617 * issued later. Otherwise, it will issue the iocb on the wire and update the
8618 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8620 * Note, this implementation has a potential sending out fabric IOCBs out of
8621 * order. The problem is caused by the construction of the "ready" boolen does
8622 * not include the condition that the internal fabric IOCB list is empty. As
8623 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8624 * ahead of the fabric IOCBs in the internal list.
8627 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8628 * IOCB_ERROR - failed to issue fabric iocb
8631 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
8633 unsigned long iflags;
8637 if (atomic_read(&phba->fabric_iocb_count) > 1)
8640 spin_lock_irqsave(&phba->hbalock, iflags);
8641 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
8642 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8645 /* Increment fabric iocb count to hold the position */
8646 atomic_inc(&phba->fabric_iocb_count);
8647 spin_unlock_irqrestore(&phba->hbalock, iflags);
8649 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8650 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8651 iocb->iocb_flag |= LPFC_IO_FABRIC;
8653 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8654 "Fabric sched2: ste:x%x",
8655 iocb->vport->port_state, 0, 0);
8657 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8659 if (ret == IOCB_ERROR) {
8660 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8661 iocb->fabric_iocb_cmpl = NULL;
8662 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8663 atomic_dec(&phba->fabric_iocb_count);
8666 spin_lock_irqsave(&phba->hbalock, iflags);
8667 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
8668 spin_unlock_irqrestore(&phba->hbalock, iflags);
8675 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8676 * @vport: pointer to a virtual N_Port data structure.
8678 * This routine aborts all the IOCBs associated with a @vport from the
8679 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8680 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8681 * list, removes each IOCB associated with the @vport off the list, set the
8682 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8683 * associated with the IOCB.
8685 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
8687 LIST_HEAD(completions);
8688 struct lpfc_hba *phba = vport->phba;
8689 struct lpfc_iocbq *tmp_iocb, *piocb;
8691 spin_lock_irq(&phba->hbalock);
8692 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
8695 if (piocb->vport != vport)
8698 list_move_tail(&piocb->list, &completions);
8700 spin_unlock_irq(&phba->hbalock);
8702 /* Cancel all the IOCBs from the completions list */
8703 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8708 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
8709 * @ndlp: pointer to a node-list data structure.
8711 * This routine aborts all the IOCBs associated with an @ndlp from the
8712 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8713 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8714 * list, removes each IOCB associated with the @ndlp off the list, set the
8715 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8716 * associated with the IOCB.
8718 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
8720 LIST_HEAD(completions);
8721 struct lpfc_hba *phba = ndlp->phba;
8722 struct lpfc_iocbq *tmp_iocb, *piocb;
8723 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8725 spin_lock_irq(&phba->hbalock);
8726 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
8728 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
8730 list_move_tail(&piocb->list, &completions);
8733 spin_unlock_irq(&phba->hbalock);
8735 /* Cancel all the IOCBs from the completions list */
8736 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8741 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
8742 * @phba: pointer to lpfc hba data structure.
8744 * This routine aborts all the IOCBs currently on the driver internal
8745 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
8746 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
8747 * list, removes IOCBs off the list, set the status feild to
8748 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
8751 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
8753 LIST_HEAD(completions);
8755 spin_lock_irq(&phba->hbalock);
8756 list_splice_init(&phba->fabric_iocb_list, &completions);
8757 spin_unlock_irq(&phba->hbalock);
8759 /* Cancel all the IOCBs from the completions list */
8760 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8765 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
8766 * @vport: pointer to lpfc vport data structure.
8768 * This routine is invoked by the vport cleanup for deletions and the cleanup
8769 * for an ndlp on removal.
8772 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
8774 struct lpfc_hba *phba = vport->phba;
8775 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8776 unsigned long iflag = 0;
8778 spin_lock_irqsave(&phba->hbalock, iflag);
8779 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
8780 list_for_each_entry_safe(sglq_entry, sglq_next,
8781 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
8782 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
8783 sglq_entry->ndlp = NULL;
8785 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
8786 spin_unlock_irqrestore(&phba->hbalock, iflag);
8791 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
8792 * @phba: pointer to lpfc hba data structure.
8793 * @axri: pointer to the els xri abort wcqe structure.
8795 * This routine is invoked by the worker thread to process a SLI4 slow-path
8799 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
8800 struct sli4_wcqe_xri_aborted *axri)
8802 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
8803 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
8806 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8807 unsigned long iflag = 0;
8808 struct lpfc_nodelist *ndlp;
8809 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8811 spin_lock_irqsave(&phba->hbalock, iflag);
8812 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
8813 list_for_each_entry_safe(sglq_entry, sglq_next,
8814 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
8815 if (sglq_entry->sli4_xritag == xri) {
8816 list_del(&sglq_entry->list);
8817 ndlp = sglq_entry->ndlp;
8818 sglq_entry->ndlp = NULL;
8819 spin_lock(&pring->ring_lock);
8820 list_add_tail(&sglq_entry->list,
8821 &phba->sli4_hba.lpfc_sgl_list);
8822 sglq_entry->state = SGL_FREED;
8823 spin_unlock(&pring->ring_lock);
8824 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
8825 spin_unlock_irqrestore(&phba->hbalock, iflag);
8826 lpfc_set_rrq_active(phba, ndlp,
8827 sglq_entry->sli4_lxritag,
8830 /* Check if TXQ queue needs to be serviced */
8831 if (!(list_empty(&pring->txq)))
8832 lpfc_worker_wake_up(phba);
8836 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
8837 lxri = lpfc_sli4_xri_inrange(phba, xri);
8838 if (lxri == NO_XRI) {
8839 spin_unlock_irqrestore(&phba->hbalock, iflag);
8842 spin_lock(&pring->ring_lock);
8843 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
8844 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
8845 spin_unlock(&pring->ring_lock);
8846 spin_unlock_irqrestore(&phba->hbalock, iflag);
8849 sglq_entry->state = SGL_XRI_ABORTED;
8850 spin_unlock(&pring->ring_lock);
8851 spin_unlock_irqrestore(&phba->hbalock, iflag);
8855 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
8856 * @vport: pointer to virtual port object.
8857 * @ndlp: nodelist pointer for the impacted node.
8859 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
8860 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
8861 * the driver is required to send a LOGO to the remote node before it
8862 * attempts to recover its login to the remote node.
8865 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
8866 struct lpfc_nodelist *ndlp)
8868 struct Scsi_Host *shost;
8869 struct lpfc_hba *phba;
8870 unsigned long flags = 0;
8872 shost = lpfc_shost_from_vport(vport);
8874 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
8875 lpfc_printf_log(phba, KERN_INFO,
8876 LOG_SLI, "3093 No rport recovery needed. "
8877 "rport in state 0x%x\n", ndlp->nlp_state);
8880 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8881 "3094 Start rport recovery on shost id 0x%x "
8882 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8884 shost->host_no, ndlp->nlp_DID,
8885 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
8888 * The rport is not responding. Remove the FCP-2 flag to prevent
8889 * an ADISC in the follow-up recovery code.
8891 spin_lock_irqsave(shost->host_lock, flags);
8892 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
8893 spin_unlock_irqrestore(shost->host_lock, flags);
8894 lpfc_issue_els_logo(vport, ndlp, 0);
8895 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);