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;
458 LPFC_MBOXQ_t *mboxq = NULL;
459 struct lpfc_nodelist *ndlp;
460 struct lpfc_dmabuf *dmabuf = NULL;
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 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
480 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */
481 if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
482 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
487 dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
492 memcpy(dmabuf->virt, &phba->fc_fabparam,
493 sizeof(struct serv_parm));
496 vport->port_state = LPFC_FABRIC_CFG_LINK;
498 lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
500 lpfc_reg_vfi(mboxq, vport, 0);
502 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
503 mboxq->vport = vport;
504 mboxq->context1 = dmabuf;
505 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
506 if (rc == MBX_NOT_FINISHED) {
514 mempool_free(mboxq, phba->mbox_mem_pool);
517 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
521 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
522 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
523 "0289 Issue Register VFI failed: Err %d\n", rc);
528 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
529 * @vport: pointer to a host virtual N_Port data structure.
531 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
532 * the @vport. This mailbox command is necessary for SLI4 port only.
535 * 0 - successfully issued REG_VFI for @vport
536 * A failure code otherwise.
539 lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
541 struct lpfc_hba *phba = vport->phba;
542 struct Scsi_Host *shost;
546 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
548 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
549 "2556 UNREG_VFI mbox allocation failed"
550 "HBA state x%x\n", phba->pport->port_state);
554 lpfc_unreg_vfi(mboxq, vport);
555 mboxq->vport = vport;
556 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
558 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
559 if (rc == MBX_NOT_FINISHED) {
560 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
561 "2557 UNREG_VFI issue mbox failed rc x%x "
563 rc, phba->pport->port_state);
564 mempool_free(mboxq, phba->mbox_mem_pool);
568 shost = lpfc_shost_from_vport(vport);
569 spin_lock_irq(shost->host_lock);
570 vport->fc_flag &= ~FC_VFI_REGISTERED;
571 spin_unlock_irq(shost->host_lock);
576 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
577 * @vport: pointer to a host virtual N_Port data structure.
578 * @sp: pointer to service parameter data structure.
580 * This routine is called from FLOGI/FDISC completion handler functions.
581 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
582 * node nodename is changed in the completion service parameter else return
583 * 0. This function also set flag in the vport data structure to delay
584 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
585 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
586 * node nodename is changed in the completion service parameter.
589 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
590 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
594 lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
595 struct serv_parm *sp)
597 uint8_t fabric_param_changed = 0;
598 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
600 if ((vport->fc_prevDID != vport->fc_myDID) ||
601 memcmp(&vport->fabric_portname, &sp->portName,
602 sizeof(struct lpfc_name)) ||
603 memcmp(&vport->fabric_nodename, &sp->nodeName,
604 sizeof(struct lpfc_name)))
605 fabric_param_changed = 1;
608 * Word 1 Bit 31 in common service parameter is overloaded.
609 * Word 1 Bit 31 in FLOGI request is multiple NPort request
610 * Word 1 Bit 31 in FLOGI response is clean address bit
612 * If fabric parameter is changed and clean address bit is
613 * cleared delay nport discovery if
614 * - vport->fc_prevDID != 0 (not initial discovery) OR
615 * - lpfc_delay_discovery module parameter is set.
617 if (fabric_param_changed && !sp->cmn.clean_address_bit &&
618 (vport->fc_prevDID || lpfc_delay_discovery)) {
619 spin_lock_irq(shost->host_lock);
620 vport->fc_flag |= FC_DISC_DELAYED;
621 spin_unlock_irq(shost->host_lock);
624 return fabric_param_changed;
629 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
630 * @vport: pointer to a host virtual N_Port data structure.
631 * @ndlp: pointer to a node-list data structure.
632 * @sp: pointer to service parameter data structure.
633 * @irsp: pointer to the IOCB within the lpfc response IOCB.
635 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
636 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
637 * port in a fabric topology. It properly sets up the parameters to the @ndlp
638 * from the IOCB response. It also check the newly assigned N_Port ID to the
639 * @vport against the previously assigned N_Port ID. If it is different from
640 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
641 * is invoked on all the remaining nodes with the @vport to unregister the
642 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
643 * is invoked to register login to the fabric.
646 * 0 - Success (currently, always return 0)
649 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
650 struct serv_parm *sp, IOCB_t *irsp)
652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
653 struct lpfc_hba *phba = vport->phba;
654 struct lpfc_nodelist *np;
655 struct lpfc_nodelist *next_np;
656 uint8_t fabric_param_changed;
658 spin_lock_irq(shost->host_lock);
659 vport->fc_flag |= FC_FABRIC;
660 spin_unlock_irq(shost->host_lock);
662 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
663 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
664 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
666 phba->fc_edtovResol = sp->cmn.edtovResolution;
667 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
669 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
670 spin_lock_irq(shost->host_lock);
671 vport->fc_flag |= FC_PUBLIC_LOOP;
672 spin_unlock_irq(shost->host_lock);
675 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
676 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
677 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
678 ndlp->nlp_class_sup = 0;
679 if (sp->cls1.classValid)
680 ndlp->nlp_class_sup |= FC_COS_CLASS1;
681 if (sp->cls2.classValid)
682 ndlp->nlp_class_sup |= FC_COS_CLASS2;
683 if (sp->cls3.classValid)
684 ndlp->nlp_class_sup |= FC_COS_CLASS3;
685 if (sp->cls4.classValid)
686 ndlp->nlp_class_sup |= FC_COS_CLASS4;
687 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
688 sp->cmn.bbRcvSizeLsb;
690 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
691 if (fabric_param_changed) {
692 /* Reset FDMI attribute masks based on config parameter */
693 if (phba->cfg_fdmi_on == LPFC_FDMI_NO_SUPPORT) {
694 vport->fdmi_hba_mask = 0;
695 vport->fdmi_port_mask = 0;
697 /* Setup appropriate attribute masks */
698 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
699 if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
700 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
702 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
706 memcpy(&vport->fabric_portname, &sp->portName,
707 sizeof(struct lpfc_name));
708 memcpy(&vport->fabric_nodename, &sp->nodeName,
709 sizeof(struct lpfc_name));
710 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
712 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
713 if (sp->cmn.response_multiple_NPort) {
714 lpfc_printf_vlog(vport, KERN_WARNING,
716 "1816 FLOGI NPIV supported, "
717 "response data 0x%x\n",
718 sp->cmn.response_multiple_NPort);
719 spin_lock_irq(&phba->hbalock);
720 phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
721 spin_unlock_irq(&phba->hbalock);
723 /* Because we asked f/w for NPIV it still expects us
724 to call reg_vnpid atleast for the physcial host */
725 lpfc_printf_vlog(vport, KERN_WARNING,
727 "1817 Fabric does not support NPIV "
728 "- configuring single port mode.\n");
729 spin_lock_irq(&phba->hbalock);
730 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
731 spin_unlock_irq(&phba->hbalock);
736 * For FC we need to do some special processing because of the SLI
737 * Port's default settings of the Common Service Parameters.
739 if ((phba->sli_rev == LPFC_SLI_REV4) &&
740 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
741 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
742 if (fabric_param_changed)
743 lpfc_unregister_fcf_prep(phba);
745 /* This should just update the VFI CSPs*/
746 if (vport->fc_flag & FC_VFI_REGISTERED)
747 lpfc_issue_reg_vfi(vport);
750 if (fabric_param_changed &&
751 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
753 /* If our NportID changed, we need to ensure all
754 * remaining NPORTs get unreg_login'ed.
756 list_for_each_entry_safe(np, next_np,
757 &vport->fc_nodes, nlp_listp) {
758 if (!NLP_CHK_NODE_ACT(np))
760 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
761 !(np->nlp_flag & NLP_NPR_ADISC))
763 spin_lock_irq(shost->host_lock);
764 np->nlp_flag &= ~NLP_NPR_ADISC;
765 spin_unlock_irq(shost->host_lock);
766 lpfc_unreg_rpi(vport, np);
768 lpfc_cleanup_pending_mbox(vport);
770 if (phba->sli_rev == LPFC_SLI_REV4) {
771 lpfc_sli4_unreg_all_rpis(vport);
772 lpfc_mbx_unreg_vpi(vport);
773 spin_lock_irq(shost->host_lock);
774 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
775 spin_unlock_irq(shost->host_lock);
779 * For SLI3 and SLI4, the VPI needs to be reregistered in
780 * response to this fabric parameter change event.
782 spin_lock_irq(shost->host_lock);
783 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
784 spin_unlock_irq(shost->host_lock);
785 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
786 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
788 * Driver needs to re-reg VPI in order for f/w
789 * to update the MAC address.
791 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
792 lpfc_register_new_vport(phba, vport, ndlp);
796 if (phba->sli_rev < LPFC_SLI_REV4) {
797 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
798 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
799 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
800 lpfc_register_new_vport(phba, vport, ndlp);
802 lpfc_issue_fabric_reglogin(vport);
804 ndlp->nlp_type |= NLP_FABRIC;
805 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
806 if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
807 (vport->vpi_state & LPFC_VPI_REGISTERED)) {
808 lpfc_start_fdiscs(phba);
809 lpfc_do_scr_ns_plogi(phba, vport);
810 } else if (vport->fc_flag & FC_VFI_REGISTERED)
811 lpfc_issue_init_vpi(vport);
813 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
814 "3135 Need register VFI: (x%x/%x)\n",
815 vport->fc_prevDID, vport->fc_myDID);
816 lpfc_issue_reg_vfi(vport);
823 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
824 * @vport: pointer to a host virtual N_Port data structure.
825 * @ndlp: pointer to a node-list data structure.
826 * @sp: pointer to service parameter data structure.
828 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
829 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
830 * in a point-to-point topology. First, the @vport's N_Port Name is compared
831 * with the received N_Port Name: if the @vport's N_Port Name is greater than
832 * the received N_Port Name lexicographically, this node shall assign local
833 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
834 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
835 * this node shall just wait for the remote node to issue PLOGI and assign
843 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
844 struct serv_parm *sp)
846 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
847 struct lpfc_hba *phba = vport->phba;
851 spin_lock_irq(shost->host_lock);
852 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
853 vport->fc_flag |= FC_PT2PT;
854 spin_unlock_irq(shost->host_lock);
856 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
857 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
858 lpfc_unregister_fcf_prep(phba);
860 spin_lock_irq(shost->host_lock);
861 vport->fc_flag &= ~FC_VFI_REGISTERED;
862 spin_unlock_irq(shost->host_lock);
863 phba->fc_topology_changed = 0;
866 rc = memcmp(&vport->fc_portname, &sp->portName,
867 sizeof(vport->fc_portname));
870 /* This side will initiate the PLOGI */
871 spin_lock_irq(shost->host_lock);
872 vport->fc_flag |= FC_PT2PT_PLOGI;
873 spin_unlock_irq(shost->host_lock);
876 * N_Port ID cannot be 0, set our Id to LocalID
877 * the other side will be RemoteID.
882 vport->fc_myDID = PT2PT_LocalID;
884 /* Decrement ndlp reference count indicating that ndlp can be
885 * safely released when other references to it are done.
889 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
892 * Cannot find existing Fabric ndlp, so allocate a
895 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
898 lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID);
899 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
900 ndlp = lpfc_enable_node(vport, ndlp,
901 NLP_STE_UNUSED_NODE);
906 memcpy(&ndlp->nlp_portname, &sp->portName,
907 sizeof(struct lpfc_name));
908 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
909 sizeof(struct lpfc_name));
910 /* Set state will put ndlp onto node list if not already done */
911 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
912 spin_lock_irq(shost->host_lock);
913 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
914 spin_unlock_irq(shost->host_lock);
916 /* This side will wait for the PLOGI, decrement ndlp reference
917 * count indicating that ndlp can be released when other
918 * references to it are done.
922 /* If we are pt2pt with another NPort, force NPIV off! */
923 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
925 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
929 lpfc_config_link(phba, mbox);
931 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
933 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
934 if (rc == MBX_NOT_FINISHED) {
935 mempool_free(mbox, phba->mbox_mem_pool);
945 * lpfc_cmpl_els_flogi - Completion callback function for flogi
946 * @phba: pointer to lpfc hba data structure.
947 * @cmdiocb: pointer to lpfc command iocb data structure.
948 * @rspiocb: pointer to lpfc response iocb data structure.
950 * This routine is the top-level completion callback function for issuing
951 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
952 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
953 * retry has been made (either immediately or delayed with lpfc_els_retry()
954 * returning 1), the command IOCB will be released and function returned.
955 * If the retry attempt has been given up (possibly reach the maximum
956 * number of retries), one additional decrement of ndlp reference shall be
957 * invoked before going out after releasing the command IOCB. This will
958 * actually release the remote node (Note, lpfc_els_free_iocb() will also
959 * invoke one decrement of ndlp reference count). If no error reported in
960 * the IOCB status, the command Port ID field is used to determine whether
961 * this is a point-to-point topology or a fabric topology: if the Port ID
962 * field is assigned, it is a fabric topology; otherwise, it is a
963 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
964 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
965 * specific topology completion conditions.
968 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
969 struct lpfc_iocbq *rspiocb)
971 struct lpfc_vport *vport = cmdiocb->vport;
972 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
973 IOCB_t *irsp = &rspiocb->iocb;
974 struct lpfc_nodelist *ndlp = cmdiocb->context1;
975 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
976 struct serv_parm *sp;
980 /* Check to see if link went down during discovery */
981 if (lpfc_els_chk_latt(vport)) {
982 /* One additional decrement on node reference count to
983 * trigger the release of the node
989 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
990 "FLOGI cmpl: status:x%x/x%x state:x%x",
991 irsp->ulpStatus, irsp->un.ulpWord[4],
994 if (irsp->ulpStatus) {
996 * In case of FIP mode, perform roundrobin FCF failover
997 * due to new FCF discovery
999 if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
1000 (phba->fcf.fcf_flag & FCF_DISCOVERY)) {
1001 if (phba->link_state < LPFC_LINK_UP)
1002 goto stop_rr_fcf_flogi;
1003 if ((phba->fcoe_cvl_eventtag_attn ==
1004 phba->fcoe_cvl_eventtag) &&
1005 (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1006 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1008 goto stop_rr_fcf_flogi;
1010 phba->fcoe_cvl_eventtag_attn =
1011 phba->fcoe_cvl_eventtag;
1012 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1013 "2611 FLOGI failed on FCF (x%x), "
1014 "status:x%x/x%x, tmo:x%x, perform "
1015 "roundrobin FCF failover\n",
1016 phba->fcf.current_rec.fcf_indx,
1017 irsp->ulpStatus, irsp->un.ulpWord[4],
1019 lpfc_sli4_set_fcf_flogi_fail(phba,
1020 phba->fcf.current_rec.fcf_indx);
1021 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
1022 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
1029 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1030 "2858 FLOGI failure Status:x%x/x%x TMO:x%x "
1032 irsp->ulpStatus, irsp->un.ulpWord[4],
1033 irsp->ulpTimeout, phba->hba_flag,
1034 phba->fcf.fcf_flag);
1036 /* Check for retry */
1037 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
1041 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1042 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1043 irsp->ulpStatus, irsp->un.ulpWord[4],
1046 /* FLOGI failed, so there is no fabric */
1047 spin_lock_irq(shost->host_lock);
1048 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1049 spin_unlock_irq(shost->host_lock);
1051 /* If private loop, then allow max outstanding els to be
1052 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1053 * alpa map would take too long otherwise.
1055 if (phba->alpa_map[0] == 0)
1056 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
1057 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1058 (!(vport->fc_flag & FC_VFI_REGISTERED) ||
1059 (vport->fc_prevDID != vport->fc_myDID) ||
1060 phba->fc_topology_changed)) {
1061 if (vport->fc_flag & FC_VFI_REGISTERED) {
1062 if (phba->fc_topology_changed) {
1063 lpfc_unregister_fcf_prep(phba);
1064 spin_lock_irq(shost->host_lock);
1065 vport->fc_flag &= ~FC_VFI_REGISTERED;
1066 spin_unlock_irq(shost->host_lock);
1067 phba->fc_topology_changed = 0;
1069 lpfc_sli4_unreg_all_rpis(vport);
1072 lpfc_issue_reg_vfi(vport);
1078 spin_lock_irq(shost->host_lock);
1079 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
1080 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
1081 spin_unlock_irq(shost->host_lock);
1084 * The FLogI succeeded. Sync the data for the CPU before
1087 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1090 sp = prsp->virt + sizeof(uint32_t);
1092 /* FLOGI completes successfully */
1093 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1094 "0101 FLOGI completes successfully, I/O tag:x%x, "
1095 "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb->iotag,
1096 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
1097 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
1098 vport->port_state, vport->fc_flag);
1100 if (vport->port_state == LPFC_FLOGI) {
1102 * If Common Service Parameters indicate Nport
1103 * we are point to point, if Fport we are Fabric.
1106 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
1107 else if (!(phba->hba_flag & HBA_FCOE_MODE))
1108 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
1110 lpfc_printf_vlog(vport, KERN_ERR,
1112 "2831 FLOGI response with cleared Fabric "
1113 "bit fcf_index 0x%x "
1114 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1116 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1117 phba->fcf.current_rec.fcf_indx,
1118 phba->fcf.current_rec.switch_name[0],
1119 phba->fcf.current_rec.switch_name[1],
1120 phba->fcf.current_rec.switch_name[2],
1121 phba->fcf.current_rec.switch_name[3],
1122 phba->fcf.current_rec.switch_name[4],
1123 phba->fcf.current_rec.switch_name[5],
1124 phba->fcf.current_rec.switch_name[6],
1125 phba->fcf.current_rec.switch_name[7],
1126 phba->fcf.current_rec.fabric_name[0],
1127 phba->fcf.current_rec.fabric_name[1],
1128 phba->fcf.current_rec.fabric_name[2],
1129 phba->fcf.current_rec.fabric_name[3],
1130 phba->fcf.current_rec.fabric_name[4],
1131 phba->fcf.current_rec.fabric_name[5],
1132 phba->fcf.current_rec.fabric_name[6],
1133 phba->fcf.current_rec.fabric_name[7]);
1135 spin_lock_irq(&phba->hbalock);
1136 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1137 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1138 spin_unlock_irq(&phba->hbalock);
1142 /* Mark the FCF discovery process done */
1143 if (phba->hba_flag & HBA_FIP_SUPPORT)
1144 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
1146 "2769 FLOGI to FCF (x%x) "
1147 "completed successfully\n",
1148 phba->fcf.current_rec.fcf_indx);
1149 spin_lock_irq(&phba->hbalock);
1150 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1151 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1152 spin_unlock_irq(&phba->hbalock);
1158 spin_lock_irq(&phba->hbalock);
1159 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1160 spin_unlock_irq(&phba->hbalock);
1164 if (!lpfc_error_lost_link(irsp)) {
1165 /* FLOGI failed, so just use loop map to make discovery list */
1166 lpfc_disc_list_loopmap(vport);
1168 /* Start discovery */
1169 lpfc_disc_start(vport);
1170 } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1171 (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1172 IOERR_SLI_ABORTED) &&
1173 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1174 IOERR_SLI_DOWN))) &&
1175 (phba->link_state != LPFC_CLEAR_LA)) {
1176 /* If FLOGI failed enable link interrupt. */
1177 lpfc_issue_clear_la(phba, vport);
1180 lpfc_els_free_iocb(phba, cmdiocb);
1184 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1185 * @vport: pointer to a host virtual N_Port data structure.
1186 * @ndlp: pointer to a node-list data structure.
1187 * @retry: number of retries to the command IOCB.
1189 * This routine issues a Fabric Login (FLOGI) Request ELS command
1190 * for a @vport. The initiator service parameters are put into the payload
1191 * of the FLOGI Request IOCB and the top-level callback function pointer
1192 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1193 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1194 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1196 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1197 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1198 * will be stored into the context1 field of the IOCB for the completion
1199 * callback function to the FLOGI ELS command.
1202 * 0 - successfully issued flogi iocb for @vport
1203 * 1 - failed to issue flogi iocb for @vport
1206 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1209 struct lpfc_hba *phba = vport->phba;
1210 struct serv_parm *sp;
1212 struct lpfc_iocbq *elsiocb;
1218 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1219 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1220 ndlp->nlp_DID, ELS_CMD_FLOGI);
1225 icmd = &elsiocb->iocb;
1226 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1228 /* For FLOGI request, remainder of payload is service parameters */
1229 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
1230 pcmd += sizeof(uint32_t);
1231 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1232 sp = (struct serv_parm *) pcmd;
1234 /* Setup CSPs accordingly for Fabric */
1235 sp->cmn.e_d_tov = 0;
1236 sp->cmn.w2.r_a_tov = 0;
1237 sp->cmn.virtual_fabric_support = 0;
1238 sp->cls1.classValid = 0;
1239 if (sp->cmn.fcphLow < FC_PH3)
1240 sp->cmn.fcphLow = FC_PH3;
1241 if (sp->cmn.fcphHigh < FC_PH3)
1242 sp->cmn.fcphHigh = FC_PH3;
1244 if (phba->sli_rev == LPFC_SLI_REV4) {
1245 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1246 LPFC_SLI_INTF_IF_TYPE_0) {
1247 elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
1248 elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
1249 /* FLOGI needs to be 3 for WQE FCFI */
1250 /* Set the fcfi to the fcfi we registered with */
1251 elsiocb->iocb.ulpContext = phba->fcf.fcfi;
1253 /* Can't do SLI4 class2 without support sequence coalescing */
1254 sp->cls2.classValid = 0;
1255 sp->cls2.seqDelivery = 0;
1257 /* Historical, setting sequential-delivery bit for SLI3 */
1258 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
1259 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
1260 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1261 sp->cmn.request_multiple_Nport = 1;
1262 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1266 sp->cmn.request_multiple_Nport = 0;
1269 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
1270 icmd->un.elsreq64.myID = 0;
1271 icmd->un.elsreq64.fl = 1;
1274 tmo = phba->fc_ratov;
1275 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
1276 lpfc_set_disctmo(vport);
1277 phba->fc_ratov = tmo;
1279 phba->fc_stat.elsXmitFLOGI++;
1280 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
1282 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1283 "Issue FLOGI: opt:x%x",
1284 phba->sli3_options, 0, 0);
1286 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
1287 if (rc == IOCB_ERROR) {
1288 lpfc_els_free_iocb(phba, elsiocb);
1295 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1296 * @phba: pointer to lpfc hba data structure.
1298 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1299 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1300 * list and issues an abort IOCB commond on each outstanding IOCB that
1301 * contains a active Fabric_DID ndlp. Note that this function is to issue
1302 * the abort IOCB command on all the outstanding IOCBs, thus when this
1303 * function returns, it does not guarantee all the IOCBs are actually aborted.
1306 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1309 lpfc_els_abort_flogi(struct lpfc_hba *phba)
1311 struct lpfc_sli_ring *pring;
1312 struct lpfc_iocbq *iocb, *next_iocb;
1313 struct lpfc_nodelist *ndlp;
1316 /* Abort outstanding I/O on NPort <nlp_DID> */
1317 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1318 "0201 Abort outstanding I/O on NPort x%x\n",
1321 pring = &phba->sli.ring[LPFC_ELS_RING];
1324 * Check the txcmplq for an iocb that matches the nport the driver is
1327 spin_lock_irq(&phba->hbalock);
1328 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1330 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
1331 ndlp = (struct lpfc_nodelist *)(iocb->context1);
1332 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
1333 (ndlp->nlp_DID == Fabric_DID))
1334 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1337 spin_unlock_irq(&phba->hbalock);
1343 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1344 * @vport: pointer to a host virtual N_Port data structure.
1346 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1347 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1348 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1349 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1350 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1351 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1355 * 0 - failed to issue initial flogi for @vport
1356 * 1 - successfully issued initial flogi for @vport
1359 lpfc_initial_flogi(struct lpfc_vport *vport)
1361 struct lpfc_hba *phba = vport->phba;
1362 struct lpfc_nodelist *ndlp;
1364 vport->port_state = LPFC_FLOGI;
1365 lpfc_set_disctmo(vport);
1367 /* First look for the Fabric ndlp */
1368 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1370 /* Cannot find existing Fabric ndlp, so allocate a new one */
1371 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1374 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1375 /* Set the node type */
1376 ndlp->nlp_type |= NLP_FABRIC;
1377 /* Put ndlp onto node list */
1378 lpfc_enqueue_node(vport, ndlp);
1379 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1380 /* re-setup ndlp without removing from node list */
1381 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1386 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
1387 /* This decrement of reference count to node shall kick off
1388 * the release of the node.
1397 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1398 * @vport: pointer to a host virtual N_Port data structure.
1400 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1401 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1402 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1403 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1404 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1405 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1409 * 0 - failed to issue initial fdisc for @vport
1410 * 1 - successfully issued initial fdisc for @vport
1413 lpfc_initial_fdisc(struct lpfc_vport *vport)
1415 struct lpfc_hba *phba = vport->phba;
1416 struct lpfc_nodelist *ndlp;
1418 /* First look for the Fabric ndlp */
1419 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1421 /* Cannot find existing Fabric ndlp, so allocate a new one */
1422 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1425 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1426 /* Put ndlp onto node list */
1427 lpfc_enqueue_node(vport, ndlp);
1428 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1429 /* re-setup ndlp without removing from node list */
1430 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1435 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
1436 /* decrement node reference count to trigger the release of
1446 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1447 * @vport: pointer to a host virtual N_Port data structure.
1449 * This routine checks whether there are more remaining Port Logins
1450 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1451 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1452 * to issue ELS PLOGIs up to the configured discover threads with the
1453 * @vport (@vport->cfg_discovery_threads). The function also decrement
1454 * the @vport's num_disc_node by 1 if it is not already 0.
1457 lpfc_more_plogi(struct lpfc_vport *vport)
1459 if (vport->num_disc_nodes)
1460 vport->num_disc_nodes--;
1462 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1463 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1464 "0232 Continue discovery with %d PLOGIs to go "
1465 "Data: x%x x%x x%x\n",
1466 vport->num_disc_nodes, vport->fc_plogi_cnt,
1467 vport->fc_flag, vport->port_state);
1468 /* Check to see if there are more PLOGIs to be sent */
1469 if (vport->fc_flag & FC_NLP_MORE)
1470 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1471 lpfc_els_disc_plogi(vport);
1477 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1478 * @phba: pointer to lpfc hba data structure.
1479 * @prsp: pointer to response IOCB payload.
1480 * @ndlp: pointer to a node-list data structure.
1482 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1483 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1484 * The following cases are considered N_Port confirmed:
1485 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1486 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1487 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1488 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1489 * 1) if there is a node on vport list other than the @ndlp with the same
1490 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1491 * on that node to release the RPI associated with the node; 2) if there is
1492 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1493 * into, a new node shall be allocated (or activated). In either case, the
1494 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1495 * be released and the new_ndlp shall be put on to the vport node list and
1496 * its pointer returned as the confirmed node.
1498 * Note that before the @ndlp got "released", the keepDID from not-matching
1499 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1500 * of the @ndlp. This is because the release of @ndlp is actually to put it
1501 * into an inactive state on the vport node list and the vport node list
1502 * management algorithm does not allow two node with a same DID.
1505 * pointer to the PLOGI N_Port @ndlp
1507 static struct lpfc_nodelist *
1508 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
1509 struct lpfc_nodelist *ndlp)
1511 struct lpfc_vport *vport = ndlp->vport;
1512 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1513 struct lpfc_nodelist *new_ndlp;
1514 struct lpfc_rport_data *rdata;
1515 struct fc_rport *rport;
1516 struct serv_parm *sp;
1517 uint8_t name[sizeof(struct lpfc_name)];
1518 uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
1519 uint16_t keep_nlp_state;
1522 unsigned long *active_rrqs_xri_bitmap = NULL;
1524 /* Fabric nodes can have the same WWPN so we don't bother searching
1525 * by WWPN. Just return the ndlp that was given to us.
1527 if (ndlp->nlp_type & NLP_FABRIC)
1530 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
1531 memset(name, 0, sizeof(struct lpfc_name));
1533 /* Now we find out if the NPort we are logging into, matches the WWPN
1534 * we have for that ndlp. If not, we have some work to do.
1536 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
1538 if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp))
1540 if (phba->sli_rev == LPFC_SLI_REV4) {
1541 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1543 if (active_rrqs_xri_bitmap)
1544 memset(active_rrqs_xri_bitmap, 0,
1545 phba->cfg_rrq_xri_bitmap_sz);
1548 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1549 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1550 ndlp, ndlp->nlp_DID, new_ndlp);
1553 rc = memcmp(&ndlp->nlp_portname, name,
1554 sizeof(struct lpfc_name));
1556 if (active_rrqs_xri_bitmap)
1557 mempool_free(active_rrqs_xri_bitmap,
1558 phba->active_rrq_pool);
1561 new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1563 if (active_rrqs_xri_bitmap)
1564 mempool_free(active_rrqs_xri_bitmap,
1565 phba->active_rrq_pool);
1568 lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID);
1569 } else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
1570 rc = memcmp(&ndlp->nlp_portname, name,
1571 sizeof(struct lpfc_name));
1573 if (active_rrqs_xri_bitmap)
1574 mempool_free(active_rrqs_xri_bitmap,
1575 phba->active_rrq_pool);
1578 new_ndlp = lpfc_enable_node(vport, new_ndlp,
1579 NLP_STE_UNUSED_NODE);
1581 if (active_rrqs_xri_bitmap)
1582 mempool_free(active_rrqs_xri_bitmap,
1583 phba->active_rrq_pool);
1586 keepDID = new_ndlp->nlp_DID;
1587 if ((phba->sli_rev == LPFC_SLI_REV4) && active_rrqs_xri_bitmap)
1588 memcpy(active_rrqs_xri_bitmap,
1589 new_ndlp->active_rrqs_xri_bitmap,
1590 phba->cfg_rrq_xri_bitmap_sz);
1592 keepDID = new_ndlp->nlp_DID;
1593 if (phba->sli_rev == LPFC_SLI_REV4 &&
1594 active_rrqs_xri_bitmap)
1595 memcpy(active_rrqs_xri_bitmap,
1596 new_ndlp->active_rrqs_xri_bitmap,
1597 phba->cfg_rrq_xri_bitmap_sz);
1600 lpfc_unreg_rpi(vport, new_ndlp);
1601 new_ndlp->nlp_DID = ndlp->nlp_DID;
1602 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
1603 if (phba->sli_rev == LPFC_SLI_REV4)
1604 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1605 ndlp->active_rrqs_xri_bitmap,
1606 phba->cfg_rrq_xri_bitmap_sz);
1608 spin_lock_irq(shost->host_lock);
1609 keep_nlp_flag = new_ndlp->nlp_flag;
1610 new_ndlp->nlp_flag = ndlp->nlp_flag;
1611 ndlp->nlp_flag = keep_nlp_flag;
1612 spin_unlock_irq(shost->host_lock);
1614 /* Set nlp_states accordingly */
1615 keep_nlp_state = new_ndlp->nlp_state;
1616 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
1618 /* Move this back to NPR state */
1619 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1620 /* The new_ndlp is replacing ndlp totally, so we need
1621 * to put ndlp on UNUSED list and try to free it.
1623 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1624 "3179 PLOGI confirm NEW: %x %x\n",
1625 new_ndlp->nlp_DID, keepDID);
1627 /* Fix up the rport accordingly */
1628 rport = ndlp->rport;
1630 rdata = rport->dd_data;
1631 if (rdata->pnode == ndlp) {
1632 /* break the link before dropping the ref */
1635 rdata->pnode = lpfc_nlp_get(new_ndlp);
1636 new_ndlp->rport = rport;
1638 new_ndlp->nlp_type = ndlp->nlp_type;
1640 /* We shall actually free the ndlp with both nlp_DID and
1641 * nlp_portname fields equals 0 to avoid any ndlp on the
1642 * nodelist never to be used.
1644 if (ndlp->nlp_DID == 0) {
1645 spin_lock_irq(&phba->ndlp_lock);
1646 NLP_SET_FREE_REQ(ndlp);
1647 spin_unlock_irq(&phba->ndlp_lock);
1650 /* Two ndlps cannot have the same did on the nodelist */
1651 ndlp->nlp_DID = keepDID;
1652 if (phba->sli_rev == LPFC_SLI_REV4 &&
1653 active_rrqs_xri_bitmap)
1654 memcpy(ndlp->active_rrqs_xri_bitmap,
1655 active_rrqs_xri_bitmap,
1656 phba->cfg_rrq_xri_bitmap_sz);
1658 if (!NLP_CHK_NODE_ACT(ndlp))
1659 lpfc_drop_node(vport, ndlp);
1662 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1663 "3180 PLOGI confirm SWAP: %x %x\n",
1664 new_ndlp->nlp_DID, keepDID);
1666 lpfc_unreg_rpi(vport, ndlp);
1668 /* Two ndlps cannot have the same did */
1669 ndlp->nlp_DID = keepDID;
1670 if (phba->sli_rev == LPFC_SLI_REV4 &&
1671 active_rrqs_xri_bitmap)
1672 memcpy(ndlp->active_rrqs_xri_bitmap,
1673 active_rrqs_xri_bitmap,
1674 phba->cfg_rrq_xri_bitmap_sz);
1676 /* Since we are switching over to the new_ndlp,
1677 * reset the old ndlp state
1679 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1680 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
1681 keep_nlp_state = NLP_STE_NPR_NODE;
1682 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1684 /* Fix up the rport accordingly */
1685 rport = ndlp->rport;
1687 rdata = rport->dd_data;
1688 put_node = rdata->pnode != NULL;
1689 put_rport = ndlp->rport != NULL;
1690 rdata->pnode = NULL;
1695 put_device(&rport->dev);
1698 if (phba->sli_rev == LPFC_SLI_REV4 &&
1699 active_rrqs_xri_bitmap)
1700 mempool_free(active_rrqs_xri_bitmap,
1701 phba->active_rrq_pool);
1706 * lpfc_end_rscn - Check and handle more rscn for a vport
1707 * @vport: pointer to a host virtual N_Port data structure.
1709 * This routine checks whether more Registration State Change
1710 * Notifications (RSCNs) came in while the discovery state machine was in
1711 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1712 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1713 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1714 * handling the RSCNs.
1717 lpfc_end_rscn(struct lpfc_vport *vport)
1719 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1721 if (vport->fc_flag & FC_RSCN_MODE) {
1723 * Check to see if more RSCNs came in while we were
1724 * processing this one.
1726 if (vport->fc_rscn_id_cnt ||
1727 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1728 lpfc_els_handle_rscn(vport);
1730 spin_lock_irq(shost->host_lock);
1731 vport->fc_flag &= ~FC_RSCN_MODE;
1732 spin_unlock_irq(shost->host_lock);
1738 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1739 * @phba: pointer to lpfc hba data structure.
1740 * @cmdiocb: pointer to lpfc command iocb data structure.
1741 * @rspiocb: pointer to lpfc response iocb data structure.
1743 * This routine will call the clear rrq function to free the rrq and
1744 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1745 * exist then the clear_rrq is still called because the rrq needs to
1750 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1751 struct lpfc_iocbq *rspiocb)
1753 struct lpfc_vport *vport = cmdiocb->vport;
1755 struct lpfc_nodelist *ndlp;
1756 struct lpfc_node_rrq *rrq;
1758 /* we pass cmdiocb to state machine which needs rspiocb as well */
1759 rrq = cmdiocb->context_un.rrq;
1760 cmdiocb->context_un.rsp_iocb = rspiocb;
1762 irsp = &rspiocb->iocb;
1763 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1764 "RRQ cmpl: status:x%x/x%x did:x%x",
1765 irsp->ulpStatus, irsp->un.ulpWord[4],
1766 irsp->un.elsreq64.remoteID);
1768 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1769 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) {
1770 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1771 "2882 RRQ completes to NPort x%x "
1772 "with no ndlp. Data: x%x x%x x%x\n",
1773 irsp->un.elsreq64.remoteID,
1774 irsp->ulpStatus, irsp->un.ulpWord[4],
1779 /* rrq completes to NPort <nlp_DID> */
1780 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1781 "2880 RRQ completes to NPort x%x "
1782 "Data: x%x x%x x%x x%x x%x\n",
1783 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1784 irsp->ulpTimeout, rrq->xritag, rrq->rxid);
1786 if (irsp->ulpStatus) {
1787 /* Check for retry */
1788 /* RRQ failed Don't print the vport to vport rjts */
1789 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1790 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1791 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1792 (phba)->pport->cfg_log_verbose & LOG_ELS)
1793 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1794 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1795 ndlp->nlp_DID, irsp->ulpStatus,
1796 irsp->un.ulpWord[4]);
1800 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1801 lpfc_els_free_iocb(phba, cmdiocb);
1805 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1806 * @phba: pointer to lpfc hba data structure.
1807 * @cmdiocb: pointer to lpfc command iocb data structure.
1808 * @rspiocb: pointer to lpfc response iocb data structure.
1810 * This routine is the completion callback function for issuing the Port
1811 * Login (PLOGI) command. For PLOGI completion, there must be an active
1812 * ndlp on the vport node list that matches the remote node ID from the
1813 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1814 * ignored and command IOCB released. The PLOGI response IOCB status is
1815 * checked for error conditons. If there is error status reported, PLOGI
1816 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1817 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1818 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1819 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1820 * there are additional N_Port nodes with the vport that need to perform
1821 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1825 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1826 struct lpfc_iocbq *rspiocb)
1828 struct lpfc_vport *vport = cmdiocb->vport;
1829 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1831 struct lpfc_nodelist *ndlp;
1832 struct lpfc_dmabuf *prsp;
1835 /* we pass cmdiocb to state machine which needs rspiocb as well */
1836 cmdiocb->context_un.rsp_iocb = rspiocb;
1838 irsp = &rspiocb->iocb;
1839 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1840 "PLOGI cmpl: status:x%x/x%x did:x%x",
1841 irsp->ulpStatus, irsp->un.ulpWord[4],
1842 irsp->un.elsreq64.remoteID);
1844 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1845 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
1846 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1847 "0136 PLOGI completes to NPort x%x "
1848 "with no ndlp. Data: x%x x%x x%x\n",
1849 irsp->un.elsreq64.remoteID,
1850 irsp->ulpStatus, irsp->un.ulpWord[4],
1855 /* Since ndlp can be freed in the disc state machine, note if this node
1856 * is being used during discovery.
1858 spin_lock_irq(shost->host_lock);
1859 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1860 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1861 spin_unlock_irq(shost->host_lock);
1864 /* PLOGI completes to NPort <nlp_DID> */
1865 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1866 "0102 PLOGI completes to NPort x%x "
1867 "Data: x%x x%x x%x x%x x%x\n",
1868 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1869 irsp->ulpTimeout, disc, vport->num_disc_nodes);
1870 /* Check to see if link went down during discovery */
1871 if (lpfc_els_chk_latt(vport)) {
1872 spin_lock_irq(shost->host_lock);
1873 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1874 spin_unlock_irq(shost->host_lock);
1878 if (irsp->ulpStatus) {
1879 /* Check for retry */
1880 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1881 /* ELS command is being retried */
1883 spin_lock_irq(shost->host_lock);
1884 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1885 spin_unlock_irq(shost->host_lock);
1889 /* PLOGI failed Don't print the vport to vport rjts */
1890 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1891 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1892 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1893 (phba)->pport->cfg_log_verbose & LOG_ELS)
1894 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1895 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1896 ndlp->nlp_DID, irsp->ulpStatus,
1897 irsp->un.ulpWord[4]);
1898 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1899 if (lpfc_error_lost_link(irsp))
1900 rc = NLP_STE_FREED_NODE;
1902 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1903 NLP_EVT_CMPL_PLOGI);
1905 /* Good status, call state machine */
1906 prsp = list_entry(((struct lpfc_dmabuf *)
1907 cmdiocb->context2)->list.next,
1908 struct lpfc_dmabuf, list);
1909 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
1910 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1911 NLP_EVT_CMPL_PLOGI);
1914 if (disc && vport->num_disc_nodes) {
1915 /* Check to see if there are more PLOGIs to be sent */
1916 lpfc_more_plogi(vport);
1918 if (vport->num_disc_nodes == 0) {
1919 spin_lock_irq(shost->host_lock);
1920 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1921 spin_unlock_irq(shost->host_lock);
1923 lpfc_can_disctmo(vport);
1924 lpfc_end_rscn(vport);
1929 lpfc_els_free_iocb(phba, cmdiocb);
1934 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1935 * @vport: pointer to a host virtual N_Port data structure.
1936 * @did: destination port identifier.
1937 * @retry: number of retries to the command IOCB.
1939 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1940 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1941 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1942 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1943 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1945 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1946 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1947 * will be stored into the context1 field of the IOCB for the completion
1948 * callback function to the PLOGI ELS command.
1951 * 0 - Successfully issued a plogi for @vport
1952 * 1 - failed to issue a plogi for @vport
1955 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
1957 struct lpfc_hba *phba = vport->phba;
1958 struct serv_parm *sp;
1959 struct lpfc_nodelist *ndlp;
1960 struct lpfc_iocbq *elsiocb;
1965 ndlp = lpfc_findnode_did(vport, did);
1966 if (ndlp && !NLP_CHK_NODE_ACT(ndlp))
1969 /* If ndlp is not NULL, we will bump the reference count on it */
1970 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1971 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
1976 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1978 /* For PLOGI request, remainder of payload is service parameters */
1979 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
1980 pcmd += sizeof(uint32_t);
1981 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1982 sp = (struct serv_parm *) pcmd;
1985 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1986 * to device on remote loops work.
1988 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
1989 sp->cmn.altBbCredit = 1;
1991 if (sp->cmn.fcphLow < FC_PH_4_3)
1992 sp->cmn.fcphLow = FC_PH_4_3;
1994 if (sp->cmn.fcphHigh < FC_PH3)
1995 sp->cmn.fcphHigh = FC_PH3;
1997 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1998 "Issue PLOGI: did:x%x",
2001 phba->fc_stat.elsXmitPLOGI++;
2002 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
2003 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2005 if (ret == IOCB_ERROR) {
2006 lpfc_els_free_iocb(phba, elsiocb);
2013 * lpfc_cmpl_els_prli - Completion callback function for prli
2014 * @phba: pointer to lpfc hba data structure.
2015 * @cmdiocb: pointer to lpfc command iocb data structure.
2016 * @rspiocb: pointer to lpfc response iocb data structure.
2018 * This routine is the completion callback function for a Process Login
2019 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2020 * status. If there is error status reported, PRLI retry shall be attempted
2021 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2022 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2023 * ndlp to mark the PRLI completion.
2026 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2027 struct lpfc_iocbq *rspiocb)
2029 struct lpfc_vport *vport = cmdiocb->vport;
2030 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2032 struct lpfc_nodelist *ndlp;
2034 /* we pass cmdiocb to state machine which needs rspiocb as well */
2035 cmdiocb->context_un.rsp_iocb = rspiocb;
2037 irsp = &(rspiocb->iocb);
2038 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2039 spin_lock_irq(shost->host_lock);
2040 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2041 spin_unlock_irq(shost->host_lock);
2043 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2044 "PRLI cmpl: status:x%x/x%x did:x%x",
2045 irsp->ulpStatus, irsp->un.ulpWord[4],
2047 /* PRLI completes to NPort <nlp_DID> */
2048 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2049 "0103 PRLI completes to NPort x%x "
2050 "Data: x%x x%x x%x x%x\n",
2051 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2052 irsp->ulpTimeout, vport->num_disc_nodes);
2054 vport->fc_prli_sent--;
2055 /* Check to see if link went down during discovery */
2056 if (lpfc_els_chk_latt(vport))
2059 if (irsp->ulpStatus) {
2060 /* Check for retry */
2061 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2062 /* ELS command is being retried */
2066 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2067 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
2068 ndlp->nlp_DID, irsp->ulpStatus,
2069 irsp->un.ulpWord[4]);
2070 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2071 if (lpfc_error_lost_link(irsp))
2074 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2077 /* Good status, call state machine */
2078 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2081 lpfc_els_free_iocb(phba, cmdiocb);
2086 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2087 * @vport: pointer to a host virtual N_Port data structure.
2088 * @ndlp: pointer to a node-list data structure.
2089 * @retry: number of retries to the command IOCB.
2091 * This routine issues a Process Login (PRLI) ELS command for the
2092 * @vport. The PRLI service parameters are set up in the payload of the
2093 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2094 * is put to the IOCB completion callback func field before invoking the
2095 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2097 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2098 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2099 * will be stored into the context1 field of the IOCB for the completion
2100 * callback function to the PRLI ELS command.
2103 * 0 - successfully issued prli iocb command for @vport
2104 * 1 - failed to issue prli iocb command for @vport
2107 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2110 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2111 struct lpfc_hba *phba = vport->phba;
2113 struct lpfc_iocbq *elsiocb;
2117 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2118 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2119 ndlp->nlp_DID, ELS_CMD_PRLI);
2123 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2125 /* For PRLI request, remainder of payload is service parameters */
2126 memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t)));
2127 *((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
2128 pcmd += sizeof(uint32_t);
2130 /* For PRLI, remainder of payload is PRLI parameter page */
2131 npr = (PRLI *) pcmd;
2133 * If our firmware version is 3.20 or later,
2134 * set the following bits for FC-TAPE support.
2136 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2137 npr->ConfmComplAllowed = 1;
2139 npr->TaskRetryIdReq = 1;
2141 npr->estabImagePair = 1;
2142 npr->readXferRdyDis = 1;
2143 if (vport->cfg_first_burst_size)
2144 npr->writeXferRdyDis = 1;
2146 /* For FCP support */
2147 npr->prliType = PRLI_FCP_TYPE;
2148 npr->initiatorFunc = 1;
2150 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2151 "Issue PRLI: did:x%x",
2152 ndlp->nlp_DID, 0, 0);
2154 phba->fc_stat.elsXmitPRLI++;
2155 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
2156 spin_lock_irq(shost->host_lock);
2157 ndlp->nlp_flag |= NLP_PRLI_SND;
2158 spin_unlock_irq(shost->host_lock);
2159 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2161 spin_lock_irq(shost->host_lock);
2162 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2163 spin_unlock_irq(shost->host_lock);
2164 lpfc_els_free_iocb(phba, elsiocb);
2167 vport->fc_prli_sent++;
2172 * lpfc_rscn_disc - Perform rscn discovery for a vport
2173 * @vport: pointer to a host virtual N_Port data structure.
2175 * This routine performs Registration State Change Notification (RSCN)
2176 * discovery for a @vport. If the @vport's node port recovery count is not
2177 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2178 * the nodes that need recovery. If none of the PLOGI were needed through
2179 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2180 * invoked to check and handle possible more RSCN came in during the period
2181 * of processing the current ones.
2184 lpfc_rscn_disc(struct lpfc_vport *vport)
2186 lpfc_can_disctmo(vport);
2188 /* RSCN discovery */
2189 /* go thru NPR nodes and issue ELS PLOGIs */
2190 if (vport->fc_npr_cnt)
2191 if (lpfc_els_disc_plogi(vport))
2194 lpfc_end_rscn(vport);
2198 * lpfc_adisc_done - Complete the adisc phase of discovery
2199 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2201 * This function is called when the final ADISC is completed during discovery.
2202 * This function handles clearing link attention or issuing reg_vpi depending
2203 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2205 * This function is called with no locks held.
2208 lpfc_adisc_done(struct lpfc_vport *vport)
2210 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2211 struct lpfc_hba *phba = vport->phba;
2214 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2215 * and continue discovery.
2217 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2218 !(vport->fc_flag & FC_RSCN_MODE) &&
2219 (phba->sli_rev < LPFC_SLI_REV4)) {
2220 /* The ADISCs are complete. Doesn't matter if they
2221 * succeeded or failed because the ADISC completion
2222 * routine guarantees to call the state machine and
2223 * the RPI is either unregistered (failed ADISC response)
2224 * or the RPI is still valid and the node is marked
2225 * mapped for a target. The exchanges should be in the
2226 * correct state. This code is specific to SLI3.
2228 lpfc_issue_clear_la(phba, vport);
2229 lpfc_issue_reg_vpi(phba, vport);
2233 * For SLI2, we need to set port_state to READY
2234 * and continue discovery.
2236 if (vport->port_state < LPFC_VPORT_READY) {
2237 /* If we get here, there is nothing to ADISC */
2238 lpfc_issue_clear_la(phba, vport);
2239 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2240 vport->num_disc_nodes = 0;
2241 /* go thru NPR list, issue ELS PLOGIs */
2242 if (vport->fc_npr_cnt)
2243 lpfc_els_disc_plogi(vport);
2244 if (!vport->num_disc_nodes) {
2245 spin_lock_irq(shost->host_lock);
2246 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2247 spin_unlock_irq(shost->host_lock);
2248 lpfc_can_disctmo(vport);
2249 lpfc_end_rscn(vport);
2252 vport->port_state = LPFC_VPORT_READY;
2254 lpfc_rscn_disc(vport);
2258 * lpfc_more_adisc - Issue more adisc as needed
2259 * @vport: pointer to a host virtual N_Port data structure.
2261 * This routine determines whether there are more ndlps on a @vport
2262 * node list need to have Address Discover (ADISC) issued. If so, it will
2263 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2264 * remaining nodes which need to have ADISC sent.
2267 lpfc_more_adisc(struct lpfc_vport *vport)
2269 if (vport->num_disc_nodes)
2270 vport->num_disc_nodes--;
2271 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2272 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2273 "0210 Continue discovery with %d ADISCs to go "
2274 "Data: x%x x%x x%x\n",
2275 vport->num_disc_nodes, vport->fc_adisc_cnt,
2276 vport->fc_flag, vport->port_state);
2277 /* Check to see if there are more ADISCs to be sent */
2278 if (vport->fc_flag & FC_NLP_MORE) {
2279 lpfc_set_disctmo(vport);
2280 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2281 lpfc_els_disc_adisc(vport);
2283 if (!vport->num_disc_nodes)
2284 lpfc_adisc_done(vport);
2289 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2290 * @phba: pointer to lpfc hba data structure.
2291 * @cmdiocb: pointer to lpfc command iocb data structure.
2292 * @rspiocb: pointer to lpfc response iocb data structure.
2294 * This routine is the completion function for issuing the Address Discover
2295 * (ADISC) command. It first checks to see whether link went down during
2296 * the discovery process. If so, the node will be marked as node port
2297 * recovery for issuing discover IOCB by the link attention handler and
2298 * exit. Otherwise, the response status is checked. If error was reported
2299 * in the response status, the ADISC command shall be retried by invoking
2300 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2301 * the response status, the state machine is invoked to set transition
2302 * with respect to NLP_EVT_CMPL_ADISC event.
2305 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2306 struct lpfc_iocbq *rspiocb)
2308 struct lpfc_vport *vport = cmdiocb->vport;
2309 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2311 struct lpfc_nodelist *ndlp;
2314 /* we pass cmdiocb to state machine which needs rspiocb as well */
2315 cmdiocb->context_un.rsp_iocb = rspiocb;
2317 irsp = &(rspiocb->iocb);
2318 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2320 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2321 "ADISC cmpl: status:x%x/x%x did:x%x",
2322 irsp->ulpStatus, irsp->un.ulpWord[4],
2325 /* Since ndlp can be freed in the disc state machine, note if this node
2326 * is being used during discovery.
2328 spin_lock_irq(shost->host_lock);
2329 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2330 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2331 spin_unlock_irq(shost->host_lock);
2332 /* ADISC completes to NPort <nlp_DID> */
2333 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2334 "0104 ADISC completes to NPort x%x "
2335 "Data: x%x x%x x%x x%x x%x\n",
2336 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2337 irsp->ulpTimeout, disc, vport->num_disc_nodes);
2338 /* Check to see if link went down during discovery */
2339 if (lpfc_els_chk_latt(vport)) {
2340 spin_lock_irq(shost->host_lock);
2341 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2342 spin_unlock_irq(shost->host_lock);
2346 if (irsp->ulpStatus) {
2347 /* Check for retry */
2348 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2349 /* ELS command is being retried */
2351 spin_lock_irq(shost->host_lock);
2352 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2353 spin_unlock_irq(shost->host_lock);
2354 lpfc_set_disctmo(vport);
2359 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2360 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2361 ndlp->nlp_DID, irsp->ulpStatus,
2362 irsp->un.ulpWord[4]);
2363 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2364 if (!lpfc_error_lost_link(irsp))
2365 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2366 NLP_EVT_CMPL_ADISC);
2368 /* Good status, call state machine */
2369 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2370 NLP_EVT_CMPL_ADISC);
2372 /* Check to see if there are more ADISCs to be sent */
2373 if (disc && vport->num_disc_nodes)
2374 lpfc_more_adisc(vport);
2376 lpfc_els_free_iocb(phba, cmdiocb);
2381 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2382 * @vport: pointer to a virtual N_Port data structure.
2383 * @ndlp: pointer to a node-list data structure.
2384 * @retry: number of retries to the command IOCB.
2386 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2387 * @vport. It prepares the payload of the ADISC ELS command, updates the
2388 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2389 * to issue the ADISC ELS command.
2391 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2392 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2393 * will be stored into the context1 field of the IOCB for the completion
2394 * callback function to the ADISC ELS command.
2397 * 0 - successfully issued adisc
2398 * 1 - failed to issue adisc
2401 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2404 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2405 struct lpfc_hba *phba = vport->phba;
2407 struct lpfc_iocbq *elsiocb;
2411 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2412 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2413 ndlp->nlp_DID, ELS_CMD_ADISC);
2417 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2419 /* For ADISC request, remainder of payload is service parameters */
2420 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
2421 pcmd += sizeof(uint32_t);
2423 /* Fill in ADISC payload */
2424 ap = (ADISC *) pcmd;
2425 ap->hardAL_PA = phba->fc_pref_ALPA;
2426 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2427 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2428 ap->DID = be32_to_cpu(vport->fc_myDID);
2430 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2431 "Issue ADISC: did:x%x",
2432 ndlp->nlp_DID, 0, 0);
2434 phba->fc_stat.elsXmitADISC++;
2435 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
2436 spin_lock_irq(shost->host_lock);
2437 ndlp->nlp_flag |= NLP_ADISC_SND;
2438 spin_unlock_irq(shost->host_lock);
2439 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2441 spin_lock_irq(shost->host_lock);
2442 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2443 spin_unlock_irq(shost->host_lock);
2444 lpfc_els_free_iocb(phba, elsiocb);
2451 * lpfc_cmpl_els_logo - Completion callback function for logo
2452 * @phba: pointer to lpfc hba data structure.
2453 * @cmdiocb: pointer to lpfc command iocb data structure.
2454 * @rspiocb: pointer to lpfc response iocb data structure.
2456 * This routine is the completion function for issuing the ELS Logout (LOGO)
2457 * command. If no error status was reported from the LOGO response, the
2458 * state machine of the associated ndlp shall be invoked for transition with
2459 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2460 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2463 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2464 struct lpfc_iocbq *rspiocb)
2466 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2467 struct lpfc_vport *vport = ndlp->vport;
2468 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2470 struct lpfcMboxq *mbox;
2471 unsigned long flags;
2472 uint32_t skip_recovery = 0;
2474 /* we pass cmdiocb to state machine which needs rspiocb as well */
2475 cmdiocb->context_un.rsp_iocb = rspiocb;
2477 irsp = &(rspiocb->iocb);
2478 spin_lock_irq(shost->host_lock);
2479 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2480 spin_unlock_irq(shost->host_lock);
2482 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2483 "LOGO cmpl: status:x%x/x%x did:x%x",
2484 irsp->ulpStatus, irsp->un.ulpWord[4],
2487 /* LOGO completes to NPort <nlp_DID> */
2488 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2489 "0105 LOGO completes to NPort x%x "
2490 "Data: x%x x%x x%x x%x\n",
2491 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2492 irsp->ulpTimeout, vport->num_disc_nodes);
2494 if (lpfc_els_chk_latt(vport)) {
2499 /* Check to see if link went down during discovery */
2500 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
2501 /* NLP_EVT_DEVICE_RM should unregister the RPI
2502 * which should abort all outstanding IOs.
2504 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2510 if (irsp->ulpStatus) {
2511 /* Check for retry */
2512 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2513 /* ELS command is being retried */
2518 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2519 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2520 ndlp->nlp_DID, irsp->ulpStatus,
2521 irsp->un.ulpWord[4]);
2522 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2523 if (lpfc_error_lost_link(irsp)) {
2529 /* Call state machine. This will unregister the rpi if needed. */
2530 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
2533 lpfc_els_free_iocb(phba, cmdiocb);
2534 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2535 if ((vport->fc_flag & FC_PT2PT) &&
2536 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
2537 phba->pport->fc_myDID = 0;
2538 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2540 lpfc_config_link(phba, mbox);
2541 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2542 mbox->vport = vport;
2543 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
2545 mempool_free(mbox, phba->mbox_mem_pool);
2552 * If the node is a target, the handling attempts to recover the port.
2553 * For any other port type, the rpi is unregistered as an implicit
2556 if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
2557 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2558 spin_lock_irqsave(shost->host_lock, flags);
2559 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2560 spin_unlock_irqrestore(shost->host_lock, flags);
2562 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2563 "3187 LOGO completes to NPort x%x: Start "
2564 "Recovery Data: x%x x%x x%x x%x\n",
2565 ndlp->nlp_DID, irsp->ulpStatus,
2566 irsp->un.ulpWord[4], irsp->ulpTimeout,
2567 vport->num_disc_nodes);
2568 lpfc_disc_start(vport);
2574 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2575 * @vport: pointer to a virtual N_Port data structure.
2576 * @ndlp: pointer to a node-list data structure.
2577 * @retry: number of retries to the command IOCB.
2579 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2580 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2581 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2582 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2584 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2585 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2586 * will be stored into the context1 field of the IOCB for the completion
2587 * callback function to the LOGO ELS command.
2590 * 0 - successfully issued logo
2591 * 1 - failed to issue logo
2594 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2597 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2598 struct lpfc_hba *phba = vport->phba;
2599 struct lpfc_iocbq *elsiocb;
2604 spin_lock_irq(shost->host_lock);
2605 if (ndlp->nlp_flag & NLP_LOGO_SND) {
2606 spin_unlock_irq(shost->host_lock);
2609 spin_unlock_irq(shost->host_lock);
2611 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
2612 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2613 ndlp->nlp_DID, ELS_CMD_LOGO);
2617 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2618 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
2619 pcmd += sizeof(uint32_t);
2621 /* Fill in LOGO payload */
2622 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
2623 pcmd += sizeof(uint32_t);
2624 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
2626 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2627 "Issue LOGO: did:x%x",
2628 ndlp->nlp_DID, 0, 0);
2631 * If we are issuing a LOGO, we may try to recover the remote NPort
2632 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2633 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2634 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2635 * for that ELS cmd. To avoid this situation, lets get rid of the
2636 * RPI right now, before any ELS cmds are sent.
2638 spin_lock_irq(shost->host_lock);
2639 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
2640 spin_unlock_irq(shost->host_lock);
2641 if (lpfc_unreg_rpi(vport, ndlp)) {
2642 lpfc_els_free_iocb(phba, elsiocb);
2646 phba->fc_stat.elsXmitLOGO++;
2647 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
2648 spin_lock_irq(shost->host_lock);
2649 ndlp->nlp_flag |= NLP_LOGO_SND;
2650 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
2651 spin_unlock_irq(shost->host_lock);
2652 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2654 if (rc == IOCB_ERROR) {
2655 spin_lock_irq(shost->host_lock);
2656 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2657 spin_unlock_irq(shost->host_lock);
2658 lpfc_els_free_iocb(phba, elsiocb);
2665 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2666 * @phba: pointer to lpfc hba data structure.
2667 * @cmdiocb: pointer to lpfc command iocb data structure.
2668 * @rspiocb: pointer to lpfc response iocb data structure.
2670 * This routine is a generic completion callback function for ELS commands.
2671 * Specifically, it is the callback function which does not need to perform
2672 * any command specific operations. It is currently used by the ELS command
2673 * issuing routines for the ELS State Change Request (SCR),
2674 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2675 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2676 * certain debug loggings, this callback function simply invokes the
2677 * lpfc_els_chk_latt() routine to check whether link went down during the
2678 * discovery process.
2681 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2682 struct lpfc_iocbq *rspiocb)
2684 struct lpfc_vport *vport = cmdiocb->vport;
2687 irsp = &rspiocb->iocb;
2689 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2690 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2691 irsp->ulpStatus, irsp->un.ulpWord[4],
2692 irsp->un.elsreq64.remoteID);
2693 /* ELS cmd tag <ulpIoTag> completes */
2694 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2695 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2696 irsp->ulpIoTag, irsp->ulpStatus,
2697 irsp->un.ulpWord[4], irsp->ulpTimeout);
2698 /* Check to see if link went down during discovery */
2699 lpfc_els_chk_latt(vport);
2700 lpfc_els_free_iocb(phba, cmdiocb);
2705 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2706 * @vport: pointer to a host virtual N_Port data structure.
2707 * @nportid: N_Port identifier to the remote node.
2708 * @retry: number of retries to the command IOCB.
2710 * This routine issues a State Change Request (SCR) to a fabric node
2711 * on a @vport. The remote node @nportid is passed into the function. It
2712 * first search the @vport node list to find the matching ndlp. If no such
2713 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2714 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2715 * routine is invoked to send the SCR IOCB.
2717 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2718 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2719 * will be stored into the context1 field of the IOCB for the completion
2720 * callback function to the SCR ELS command.
2723 * 0 - Successfully issued scr command
2724 * 1 - Failed to issue scr command
2727 lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2729 struct lpfc_hba *phba = vport->phba;
2730 struct lpfc_iocbq *elsiocb;
2733 struct lpfc_nodelist *ndlp;
2735 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
2737 ndlp = lpfc_findnode_did(vport, nportid);
2739 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2742 lpfc_nlp_init(vport, ndlp, nportid);
2743 lpfc_enqueue_node(vport, ndlp);
2744 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2745 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2750 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2751 ndlp->nlp_DID, ELS_CMD_SCR);
2754 /* This will trigger the release of the node just
2761 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2763 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
2764 pcmd += sizeof(uint32_t);
2766 /* For SCR, remainder of payload is SCR parameter page */
2767 memset(pcmd, 0, sizeof(SCR));
2768 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
2770 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2771 "Issue SCR: did:x%x",
2772 ndlp->nlp_DID, 0, 0);
2774 phba->fc_stat.elsXmitSCR++;
2775 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2776 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2778 /* The additional lpfc_nlp_put will cause the following
2779 * lpfc_els_free_iocb routine to trigger the rlease of
2783 lpfc_els_free_iocb(phba, elsiocb);
2786 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2787 * trigger the release of node.
2795 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2796 * @vport: pointer to a host virtual N_Port data structure.
2797 * @nportid: N_Port identifier to the remote node.
2798 * @retry: number of retries to the command IOCB.
2800 * This routine issues a Fibre Channel Address Resolution Response
2801 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2802 * is passed into the function. It first search the @vport node list to find
2803 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2804 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2805 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2807 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2808 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2809 * will be stored into the context1 field of the IOCB for the completion
2810 * callback function to the PARPR ELS command.
2813 * 0 - Successfully issued farpr command
2814 * 1 - Failed to issue farpr command
2817 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2819 struct lpfc_hba *phba = vport->phba;
2820 struct lpfc_iocbq *elsiocb;
2825 struct lpfc_nodelist *ondlp;
2826 struct lpfc_nodelist *ndlp;
2828 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
2830 ndlp = lpfc_findnode_did(vport, nportid);
2832 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2835 lpfc_nlp_init(vport, ndlp, nportid);
2836 lpfc_enqueue_node(vport, ndlp);
2837 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2838 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2843 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2844 ndlp->nlp_DID, ELS_CMD_RNID);
2846 /* This will trigger the release of the node just
2853 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2855 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
2856 pcmd += sizeof(uint32_t);
2858 /* Fill in FARPR payload */
2859 fp = (FARP *) (pcmd);
2860 memset(fp, 0, sizeof(FARP));
2861 lp = (uint32_t *) pcmd;
2862 *lp++ = be32_to_cpu(nportid);
2863 *lp++ = be32_to_cpu(vport->fc_myDID);
2865 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
2867 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
2868 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2869 ondlp = lpfc_findnode_did(vport, nportid);
2870 if (ondlp && NLP_CHK_NODE_ACT(ondlp)) {
2871 memcpy(&fp->OportName, &ondlp->nlp_portname,
2872 sizeof(struct lpfc_name));
2873 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
2874 sizeof(struct lpfc_name));
2877 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2878 "Issue FARPR: did:x%x",
2879 ndlp->nlp_DID, 0, 0);
2881 phba->fc_stat.elsXmitFARPR++;
2882 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2883 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2885 /* The additional lpfc_nlp_put will cause the following
2886 * lpfc_els_free_iocb routine to trigger the release of
2890 lpfc_els_free_iocb(phba, elsiocb);
2893 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2894 * trigger the release of the node.
2901 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2902 * @vport: pointer to a host virtual N_Port data structure.
2903 * @nlp: pointer to a node-list data structure.
2905 * This routine cancels the timer with a delayed IOCB-command retry for
2906 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2907 * removes the ELS retry event if it presents. In addition, if the
2908 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2909 * commands are sent for the @vport's nodes that require issuing discovery
2913 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
2915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2916 struct lpfc_work_evt *evtp;
2918 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
2920 spin_lock_irq(shost->host_lock);
2921 nlp->nlp_flag &= ~NLP_DELAY_TMO;
2922 spin_unlock_irq(shost->host_lock);
2923 del_timer_sync(&nlp->nlp_delayfunc);
2924 nlp->nlp_last_elscmd = 0;
2925 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
2926 list_del_init(&nlp->els_retry_evt.evt_listp);
2927 /* Decrement nlp reference count held for the delayed retry */
2928 evtp = &nlp->els_retry_evt;
2929 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
2931 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
2932 spin_lock_irq(shost->host_lock);
2933 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2934 spin_unlock_irq(shost->host_lock);
2935 if (vport->num_disc_nodes) {
2936 if (vport->port_state < LPFC_VPORT_READY) {
2937 /* Check if there are more ADISCs to be sent */
2938 lpfc_more_adisc(vport);
2940 /* Check if there are more PLOGIs to be sent */
2941 lpfc_more_plogi(vport);
2942 if (vport->num_disc_nodes == 0) {
2943 spin_lock_irq(shost->host_lock);
2944 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2945 spin_unlock_irq(shost->host_lock);
2946 lpfc_can_disctmo(vport);
2947 lpfc_end_rscn(vport);
2956 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2957 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2959 * This routine is invoked by the ndlp delayed-function timer to check
2960 * whether there is any pending ELS retry event(s) with the node. If not, it
2961 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2962 * adds the delayed events to the HBA work list and invokes the
2963 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2964 * event. Note that lpfc_nlp_get() is called before posting the event to
2965 * the work list to hold reference count of ndlp so that it guarantees the
2966 * reference to ndlp will still be available when the worker thread gets
2967 * to the event associated with the ndlp.
2970 lpfc_els_retry_delay(unsigned long ptr)
2972 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
2973 struct lpfc_vport *vport = ndlp->vport;
2974 struct lpfc_hba *phba = vport->phba;
2975 unsigned long flags;
2976 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
2978 spin_lock_irqsave(&phba->hbalock, flags);
2979 if (!list_empty(&evtp->evt_listp)) {
2980 spin_unlock_irqrestore(&phba->hbalock, flags);
2984 /* We need to hold the node by incrementing the reference
2985 * count until the queued work is done
2987 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
2988 if (evtp->evt_arg1) {
2989 evtp->evt = LPFC_EVT_ELS_RETRY;
2990 list_add_tail(&evtp->evt_listp, &phba->work_list);
2991 lpfc_worker_wake_up(phba);
2993 spin_unlock_irqrestore(&phba->hbalock, flags);
2998 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
2999 * @ndlp: pointer to a node-list data structure.
3001 * This routine is the worker-thread handler for processing the @ndlp delayed
3002 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3003 * the last ELS command from the associated ndlp and invokes the proper ELS
3004 * function according to the delayed ELS command to retry the command.
3007 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
3009 struct lpfc_vport *vport = ndlp->vport;
3010 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3011 uint32_t cmd, retry;
3013 spin_lock_irq(shost->host_lock);
3014 cmd = ndlp->nlp_last_elscmd;
3015 ndlp->nlp_last_elscmd = 0;
3017 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
3018 spin_unlock_irq(shost->host_lock);
3022 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3023 spin_unlock_irq(shost->host_lock);
3025 * If a discovery event readded nlp_delayfunc after timer
3026 * firing and before processing the timer, cancel the
3029 del_timer_sync(&ndlp->nlp_delayfunc);
3030 retry = ndlp->nlp_retry;
3031 ndlp->nlp_retry = 0;
3035 lpfc_issue_els_flogi(vport, ndlp, retry);
3038 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
3039 ndlp->nlp_prev_state = ndlp->nlp_state;
3040 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
3044 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
3045 ndlp->nlp_prev_state = ndlp->nlp_state;
3046 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3050 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
3051 ndlp->nlp_prev_state = ndlp->nlp_state;
3052 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3056 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
3057 ndlp->nlp_prev_state = ndlp->nlp_state;
3058 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3062 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
3063 lpfc_issue_els_fdisc(vport, ndlp, retry);
3070 * lpfc_els_retry - Make retry decision on an els command iocb
3071 * @phba: pointer to lpfc hba data structure.
3072 * @cmdiocb: pointer to lpfc command iocb data structure.
3073 * @rspiocb: pointer to lpfc response iocb data structure.
3075 * This routine makes a retry decision on an ELS command IOCB, which has
3076 * failed. The following ELS IOCBs use this function for retrying the command
3077 * when previously issued command responsed with error status: FLOGI, PLOGI,
3078 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3079 * returned error status, it makes the decision whether a retry shall be
3080 * issued for the command, and whether a retry shall be made immediately or
3081 * delayed. In the former case, the corresponding ELS command issuing-function
3082 * is called to retry the command. In the later case, the ELS command shall
3083 * be posted to the ndlp delayed event and delayed function timer set to the
3084 * ndlp for the delayed command issusing.
3087 * 0 - No retry of els command is made
3088 * 1 - Immediate or delayed retry of els command is made
3091 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3092 struct lpfc_iocbq *rspiocb)
3094 struct lpfc_vport *vport = cmdiocb->vport;
3095 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3096 IOCB_t *irsp = &rspiocb->iocb;
3097 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3098 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3101 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
3107 /* Note: context2 may be 0 for internal driver abort
3108 * of delays ELS command.
3111 if (pcmd && pcmd->virt) {
3112 elscmd = (uint32_t *) (pcmd->virt);
3116 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
3117 did = ndlp->nlp_DID;
3119 /* We should only hit this case for retrying PLOGI */
3120 did = irsp->un.elsreq64.remoteID;
3121 ndlp = lpfc_findnode_did(vport, did);
3122 if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp))
3123 && (cmd != ELS_CMD_PLOGI))
3127 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3128 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3129 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
3131 switch (irsp->ulpStatus) {
3132 case IOSTAT_FCP_RSP_ERROR:
3134 case IOSTAT_REMOTE_STOP:
3135 if (phba->sli_rev == LPFC_SLI_REV4) {
3136 /* This IO was aborted by the target, we don't
3137 * know the rxid and because we did not send the
3138 * ABTS we cannot generate and RRQ.
3140 lpfc_set_rrq_active(phba, ndlp,
3141 cmdiocb->sli4_lxritag, 0, 0);
3144 case IOSTAT_LOCAL_REJECT:
3145 switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
3146 case IOERR_LOOP_OPEN_FAILURE:
3147 if (cmd == ELS_CMD_FLOGI) {
3148 if (PCI_DEVICE_ID_HORNET ==
3149 phba->pcidev->device) {
3150 phba->fc_topology = LPFC_TOPOLOGY_LOOP;
3151 phba->pport->fc_myDID = 0;
3152 phba->alpa_map[0] = 0;
3153 phba->alpa_map[1] = 0;
3156 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
3161 case IOERR_ILLEGAL_COMMAND:
3162 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3163 "0124 Retry illegal cmd x%x "
3164 "retry:x%x delay:x%x\n",
3165 cmd, cmdiocb->retry, delay);
3167 /* All command's retry policy */
3169 if (cmdiocb->retry > 2)
3173 case IOERR_NO_RESOURCES:
3174 logerr = 1; /* HBA out of resources */
3176 if (cmdiocb->retry > 100)
3181 case IOERR_ILLEGAL_FRAME:
3186 case IOERR_SEQUENCE_TIMEOUT:
3187 case IOERR_INVALID_RPI:
3188 if (cmd == ELS_CMD_PLOGI &&
3189 did == NameServer_DID) {
3190 /* Continue forever if plogi to */
3191 /* the nameserver fails */
3200 case IOSTAT_NPORT_RJT:
3201 case IOSTAT_FABRIC_RJT:
3202 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
3208 case IOSTAT_NPORT_BSY:
3209 case IOSTAT_FABRIC_BSY:
3210 logerr = 1; /* Fabric / Remote NPort out of resources */
3215 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
3216 /* Added for Vendor specifc support
3217 * Just keep retrying for these Rsn / Exp codes
3219 switch (stat.un.b.lsRjtRsnCode) {
3220 case LSRJT_UNABLE_TPC:
3221 if (stat.un.b.lsRjtRsnCodeExp ==
3222 LSEXP_CMD_IN_PROGRESS) {
3223 if (cmd == ELS_CMD_PLOGI) {
3230 if (stat.un.b.lsRjtRsnCodeExp ==
3231 LSEXP_CANT_GIVE_DATA) {
3232 if (cmd == ELS_CMD_PLOGI) {
3239 if ((cmd == ELS_CMD_PLOGI) ||
3240 (cmd == ELS_CMD_PRLI)) {
3242 maxretry = lpfc_max_els_tries + 1;
3246 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3247 (cmd == ELS_CMD_FDISC) &&
3248 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
3249 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3250 "0125 FDISC Failed (x%x). "
3251 "Fabric out of resources\n",
3252 stat.un.lsRjtError);
3253 lpfc_vport_set_state(vport,
3254 FC_VPORT_NO_FABRIC_RSCS);
3258 case LSRJT_LOGICAL_BSY:
3259 if ((cmd == ELS_CMD_PLOGI) ||
3260 (cmd == ELS_CMD_PRLI)) {
3263 } else if (cmd == ELS_CMD_FDISC) {
3264 /* FDISC retry policy */
3266 if (cmdiocb->retry >= 32)
3272 case LSRJT_LOGICAL_ERR:
3273 /* There are some cases where switches return this
3274 * error when they are not ready and should be returning
3275 * Logical Busy. We should delay every time.
3277 if (cmd == ELS_CMD_FDISC &&
3278 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
3284 case LSRJT_PROTOCOL_ERR:
3285 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3286 (cmd == ELS_CMD_FDISC) &&
3287 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
3288 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
3290 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3291 "0122 FDISC Failed (x%x). "
3292 "Fabric Detected Bad WWN\n",
3293 stat.un.lsRjtError);
3294 lpfc_vport_set_state(vport,
3295 FC_VPORT_FABRIC_REJ_WWN);
3301 case IOSTAT_INTERMED_RSP:
3309 if (did == FDMI_DID)
3312 if ((cmd == ELS_CMD_FLOGI) &&
3313 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
3314 !lpfc_error_lost_link(irsp)) {
3315 /* FLOGI retry policy */
3317 /* retry FLOGI forever */
3318 if (phba->link_flag != LS_LOOPBACK_MODE)
3323 if (cmdiocb->retry >= 100)
3325 else if (cmdiocb->retry >= 32)
3327 } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
3328 /* retry FDISCs every second up to devloss */
3330 maxretry = vport->cfg_devloss_tmo;
3335 if (maxretry && (cmdiocb->retry >= maxretry)) {
3336 phba->fc_stat.elsRetryExceeded++;
3340 if ((vport->load_flag & FC_UNLOADING) != 0)
3344 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
3345 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3346 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3347 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3348 "2849 Stop retry ELS command "
3349 "x%x to remote NPORT x%x, "
3350 "Data: x%x x%x\n", cmd, did,
3351 cmdiocb->retry, delay);
3356 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3357 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3358 "0107 Retry ELS command x%x to remote "
3359 "NPORT x%x Data: x%x x%x\n",
3360 cmd, did, cmdiocb->retry, delay);
3362 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
3363 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
3364 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
3365 IOERR_NO_RESOURCES))) {
3366 /* Don't reset timer for no resources */
3368 /* If discovery / RSCN timer is running, reset it */
3369 if (timer_pending(&vport->fc_disctmo) ||
3370 (vport->fc_flag & FC_RSCN_MODE))
3371 lpfc_set_disctmo(vport);
3374 phba->fc_stat.elsXmitRetry++;
3375 if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
3376 phba->fc_stat.elsDelayRetry++;
3377 ndlp->nlp_retry = cmdiocb->retry;
3379 /* delay is specified in milliseconds */
3380 mod_timer(&ndlp->nlp_delayfunc,
3381 jiffies + msecs_to_jiffies(delay));
3382 spin_lock_irq(shost->host_lock);
3383 ndlp->nlp_flag |= NLP_DELAY_TMO;
3384 spin_unlock_irq(shost->host_lock);
3386 ndlp->nlp_prev_state = ndlp->nlp_state;
3387 if (cmd == ELS_CMD_PRLI)
3388 lpfc_nlp_set_state(vport, ndlp,
3389 NLP_STE_PRLI_ISSUE);
3391 lpfc_nlp_set_state(vport, ndlp,
3393 ndlp->nlp_last_elscmd = cmd;
3399 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
3402 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
3405 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3406 ndlp->nlp_prev_state = ndlp->nlp_state;
3407 lpfc_nlp_set_state(vport, ndlp,
3408 NLP_STE_PLOGI_ISSUE);
3410 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
3413 ndlp->nlp_prev_state = ndlp->nlp_state;
3414 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3415 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
3418 ndlp->nlp_prev_state = ndlp->nlp_state;
3419 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3420 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
3423 ndlp->nlp_prev_state = ndlp->nlp_state;
3424 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3425 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
3429 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3431 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3432 "0137 No retry ELS command x%x to remote "
3433 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3434 cmd, did, irsp->ulpStatus,
3435 irsp->un.ulpWord[4]);
3438 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3439 "0108 No retry ELS command x%x to remote "
3440 "NPORT x%x Retried:%d Error:x%x/%x\n",
3441 cmd, did, cmdiocb->retry, irsp->ulpStatus,
3442 irsp->un.ulpWord[4]);
3448 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3449 * @phba: pointer to lpfc hba data structure.
3450 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3452 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3453 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3454 * checks to see whether there is a lpfc DMA buffer associated with the
3455 * response of the command IOCB. If so, it will be released before releasing
3456 * the lpfc DMA buffer associated with the IOCB itself.
3459 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3462 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
3464 struct lpfc_dmabuf *buf_ptr;
3466 /* Free the response before processing the command. */
3467 if (!list_empty(&buf_ptr1->list)) {
3468 list_remove_head(&buf_ptr1->list, buf_ptr,
3471 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3474 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
3480 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3481 * @phba: pointer to lpfc hba data structure.
3482 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3484 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3485 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3489 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3492 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
3494 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3500 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3501 * @phba: pointer to lpfc hba data structure.
3502 * @elsiocb: pointer to lpfc els command iocb data structure.
3504 * This routine frees a command IOCB and its associated resources. The
3505 * command IOCB data structure contains the reference to various associated
3506 * resources, these fields must be set to NULL if the associated reference
3508 * context1 - reference to ndlp
3509 * context2 - reference to cmd
3510 * context2->next - reference to rsp
3511 * context3 - reference to bpl
3513 * It first properly decrements the reference count held on ndlp for the
3514 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3515 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3516 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3517 * adds the DMA buffer the @phba data structure for the delayed release.
3518 * If reference to the Buffer Pointer List (BPL) is present, the
3519 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3520 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3521 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3524 * 0 - Success (currently, always return 0)
3527 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
3529 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
3530 struct lpfc_nodelist *ndlp;
3532 ndlp = (struct lpfc_nodelist *)elsiocb->context1;
3534 if (ndlp->nlp_flag & NLP_DEFER_RM) {
3537 /* If the ndlp is not being used by another discovery
3540 if (!lpfc_nlp_not_used(ndlp)) {
3541 /* If ndlp is being used by another discovery
3542 * thread, just clear NLP_DEFER_RM
3544 ndlp->nlp_flag &= ~NLP_DEFER_RM;
3549 elsiocb->context1 = NULL;
3551 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3552 if (elsiocb->context2) {
3553 if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
3554 /* Firmware could still be in progress of DMAing
3555 * payload, so don't free data buffer till after
3558 elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
3559 buf_ptr = elsiocb->context2;
3560 elsiocb->context2 = NULL;
3563 spin_lock_irq(&phba->hbalock);
3564 if (!list_empty(&buf_ptr->list)) {
3565 list_remove_head(&buf_ptr->list,
3566 buf_ptr1, struct lpfc_dmabuf,
3568 INIT_LIST_HEAD(&buf_ptr1->list);
3569 list_add_tail(&buf_ptr1->list,
3573 INIT_LIST_HEAD(&buf_ptr->list);
3574 list_add_tail(&buf_ptr->list, &phba->elsbuf);
3576 spin_unlock_irq(&phba->hbalock);
3579 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
3580 lpfc_els_free_data(phba, buf_ptr1);
3584 if (elsiocb->context3) {
3585 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
3586 lpfc_els_free_bpl(phba, buf_ptr);
3588 lpfc_sli_release_iocbq(phba, elsiocb);
3593 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3594 * @phba: pointer to lpfc hba data structure.
3595 * @cmdiocb: pointer to lpfc command iocb data structure.
3596 * @rspiocb: pointer to lpfc response iocb data structure.
3598 * This routine is the completion callback function to the Logout (LOGO)
3599 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3600 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3601 * release the ndlp if it has the last reference remaining (reference count
3602 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3603 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3604 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3605 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3606 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3607 * IOCB data structure.
3610 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3611 struct lpfc_iocbq *rspiocb)
3613 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3614 struct lpfc_vport *vport = cmdiocb->vport;
3617 irsp = &rspiocb->iocb;
3618 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3619 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3620 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
3621 /* ACC to LOGO completes to NPort <nlp_DID> */
3622 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3623 "0109 ACC to LOGO completes to NPort x%x "
3624 "Data: x%x x%x x%x\n",
3625 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3628 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
3629 /* NPort Recovery mode or node is just allocated */
3630 if (!lpfc_nlp_not_used(ndlp)) {
3631 /* If the ndlp is being used by another discovery
3632 * thread, just unregister the RPI.
3634 lpfc_unreg_rpi(vport, ndlp);
3636 /* Indicate the node has already released, should
3637 * not reference to it from within lpfc_els_free_iocb.
3639 cmdiocb->context1 = NULL;
3644 * The driver received a LOGO from the rport and has ACK'd it.
3645 * At this point, the driver is done so release the IOCB
3647 lpfc_els_free_iocb(phba, cmdiocb);
3651 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3652 * @phba: pointer to lpfc hba data structure.
3653 * @pmb: pointer to the driver internal queue element for mailbox command.
3655 * This routine is the completion callback function for unregister default
3656 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3657 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3658 * decrements the ndlp reference count held for this completion callback
3659 * function. After that, it invokes the lpfc_nlp_not_used() to check
3660 * whether there is only one reference left on the ndlp. If so, it will
3661 * perform one more decrement and trigger the release of the ndlp.
3664 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3666 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3667 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3669 pmb->context1 = NULL;
3670 pmb->context2 = NULL;
3672 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3674 mempool_free(pmb, phba->mbox_mem_pool);
3676 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3677 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3678 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3679 atomic_read(&ndlp->kref.refcount),
3680 ndlp->nlp_usg_map, ndlp);
3681 if (NLP_CHK_NODE_ACT(ndlp)) {
3683 /* This is the end of the default RPI cleanup logic for
3684 * this ndlp. If no other discovery threads are using
3685 * this ndlp, free all resources associated with it.
3687 lpfc_nlp_not_used(ndlp);
3689 lpfc_drop_node(ndlp->vport, ndlp);
3697 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3698 * @phba: pointer to lpfc hba data structure.
3699 * @cmdiocb: pointer to lpfc command iocb data structure.
3700 * @rspiocb: pointer to lpfc response iocb data structure.
3702 * This routine is the completion callback function for ELS Response IOCB
3703 * command. In normal case, this callback function just properly sets the
3704 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3705 * field in the command IOCB is not NULL, the referred mailbox command will
3706 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3707 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3708 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3709 * routine shall be invoked trying to release the ndlp if no other threads
3710 * are currently referring it.
3713 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3714 struct lpfc_iocbq *rspiocb)
3716 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3717 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
3718 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
3721 LPFC_MBOXQ_t *mbox = NULL;
3722 struct lpfc_dmabuf *mp = NULL;
3723 uint32_t ls_rjt = 0;
3725 irsp = &rspiocb->iocb;
3727 if (cmdiocb->context_un.mbox)
3728 mbox = cmdiocb->context_un.mbox;
3730 /* First determine if this is a LS_RJT cmpl. Note, this callback
3731 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3733 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
3734 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3735 (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
3736 /* A LS_RJT associated with Default RPI cleanup has its own
3737 * separate code path.
3739 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3743 /* Check to see if link went down during discovery */
3744 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
3746 mp = (struct lpfc_dmabuf *) mbox->context1;
3748 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3751 mempool_free(mbox, phba->mbox_mem_pool);
3753 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3754 (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3755 if (lpfc_nlp_not_used(ndlp)) {
3757 /* Indicate the node has already released,
3758 * should not reference to it from within
3759 * the routine lpfc_els_free_iocb.
3761 cmdiocb->context1 = NULL;
3766 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3767 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3768 irsp->ulpStatus, irsp->un.ulpWord[4],
3769 cmdiocb->iocb.un.elsreq64.remoteID);
3770 /* ELS response tag <ulpIoTag> completes */
3771 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3772 "0110 ELS response tag x%x completes "
3773 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3774 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
3775 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
3776 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3779 if ((rspiocb->iocb.ulpStatus == 0)
3780 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
3781 lpfc_unreg_rpi(vport, ndlp);
3782 /* Increment reference count to ndlp to hold the
3783 * reference to ndlp for the callback function.
3785 mbox->context2 = lpfc_nlp_get(ndlp);
3786 mbox->vport = vport;
3787 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
3788 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3789 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3792 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
3793 ndlp->nlp_prev_state = ndlp->nlp_state;
3794 lpfc_nlp_set_state(vport, ndlp,
3795 NLP_STE_REG_LOGIN_ISSUE);
3798 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
3799 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
3800 != MBX_NOT_FINISHED)
3803 /* Decrement the ndlp reference count we
3804 * set for this failed mailbox command.
3807 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3809 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3810 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3811 "0138 ELS rsp: Cannot issue reg_login for x%x "
3812 "Data: x%x x%x x%x\n",
3813 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3816 if (lpfc_nlp_not_used(ndlp)) {
3818 /* Indicate node has already been released,
3819 * should not reference to it from within
3820 * the routine lpfc_els_free_iocb.
3822 cmdiocb->context1 = NULL;
3825 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3826 if (!lpfc_error_lost_link(irsp) &&
3827 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
3828 if (lpfc_nlp_not_used(ndlp)) {
3830 /* Indicate node has already been
3831 * released, should not reference
3832 * to it from within the routine
3833 * lpfc_els_free_iocb.
3835 cmdiocb->context1 = NULL;
3839 mp = (struct lpfc_dmabuf *) mbox->context1;
3841 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3844 mempool_free(mbox, phba->mbox_mem_pool);
3847 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3848 spin_lock_irq(shost->host_lock);
3849 ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
3850 spin_unlock_irq(shost->host_lock);
3852 /* If the node is not being used by another discovery thread,
3853 * and we are sending a reject, we are done with it.
3854 * Release driver reference count here and free associated
3858 if (lpfc_nlp_not_used(ndlp))
3859 /* Indicate node has already been released,
3860 * should not reference to it from within
3861 * the routine lpfc_els_free_iocb.
3863 cmdiocb->context1 = NULL;
3867 lpfc_els_free_iocb(phba, cmdiocb);
3872 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3873 * @vport: pointer to a host virtual N_Port data structure.
3874 * @flag: the els command code to be accepted.
3875 * @oldiocb: pointer to the original lpfc command iocb data structure.
3876 * @ndlp: pointer to a node-list data structure.
3877 * @mbox: pointer to the driver internal queue element for mailbox command.
3879 * This routine prepares and issues an Accept (ACC) response IOCB
3880 * command. It uses the @flag to properly set up the IOCB field for the
3881 * specific ACC response command to be issued and invokes the
3882 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3883 * @mbox pointer is passed in, it will be put into the context_un.mbox
3884 * field of the IOCB for the completion callback function to issue the
3885 * mailbox command to the HBA later when callback is invoked.
3887 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3888 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3889 * will be stored into the context1 field of the IOCB for the completion
3890 * callback function to the corresponding response ELS IOCB command.
3893 * 0 - Successfully issued acc response
3894 * 1 - Failed to issue acc response
3897 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
3898 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
3901 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3902 struct lpfc_hba *phba = vport->phba;
3905 struct lpfc_iocbq *elsiocb;
3907 struct serv_parm *sp;
3910 ELS_PKT *els_pkt_ptr;
3912 oldcmd = &oldiocb->iocb;
3916 cmdsize = sizeof(uint32_t);
3917 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3918 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3920 spin_lock_irq(shost->host_lock);
3921 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
3922 spin_unlock_irq(shost->host_lock);
3926 icmd = &elsiocb->iocb;
3927 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3928 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3929 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3930 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3931 pcmd += sizeof(uint32_t);
3933 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3934 "Issue ACC: did:x%x flg:x%x",
3935 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3939 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
3940 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3941 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3945 icmd = &elsiocb->iocb;
3946 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3947 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3948 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3951 elsiocb->context_un.mbox = mbox;
3953 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3954 pcmd += sizeof(uint32_t);
3955 sp = (struct serv_parm *)pcmd;
3957 if (flag == ELS_CMD_FLOGI) {
3958 /* Copy the received service parameters back */
3959 memcpy(sp, &phba->fc_fabparam,
3960 sizeof(struct serv_parm));
3962 /* Clear the F_Port bit */
3965 /* Mark all class service parameters as invalid */
3966 sp->cls1.classValid = 0;
3967 sp->cls2.classValid = 0;
3968 sp->cls3.classValid = 0;
3969 sp->cls4.classValid = 0;
3971 /* Copy our worldwide names */
3972 memcpy(&sp->portName, &vport->fc_sparam.portName,
3973 sizeof(struct lpfc_name));
3974 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
3975 sizeof(struct lpfc_name));
3977 memcpy(pcmd, &vport->fc_sparam,
3978 sizeof(struct serv_parm));
3981 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3982 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
3983 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3986 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
3987 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3988 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
3992 icmd = &elsiocb->iocb;
3993 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3994 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3995 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3997 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
3998 sizeof(uint32_t) + sizeof(PRLO));
3999 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
4000 els_pkt_ptr = (ELS_PKT *) pcmd;
4001 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
4003 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4004 "Issue ACC PRLO: did:x%x flg:x%x",
4005 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4010 /* Xmit ELS ACC response tag <ulpIoTag> */
4011 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4012 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4013 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4015 elsiocb->iotag, elsiocb->iocb.ulpContext,
4016 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4017 ndlp->nlp_rpi, vport->fc_flag);
4018 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
4019 spin_lock_irq(shost->host_lock);
4020 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4021 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
4022 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4023 spin_unlock_irq(shost->host_lock);
4024 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
4026 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4029 phba->fc_stat.elsXmitACC++;
4030 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4031 if (rc == IOCB_ERROR) {
4032 lpfc_els_free_iocb(phba, elsiocb);
4039 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4040 * @vport: pointer to a virtual N_Port data structure.
4042 * @oldiocb: pointer to the original lpfc command iocb data structure.
4043 * @ndlp: pointer to a node-list data structure.
4044 * @mbox: pointer to the driver internal queue element for mailbox command.
4046 * This routine prepares and issue an Reject (RJT) response IOCB
4047 * command. If a @mbox pointer is passed in, it will be put into the
4048 * context_un.mbox field of the IOCB for the completion callback function
4049 * to issue to the HBA later.
4051 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4052 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4053 * will be stored into the context1 field of the IOCB for the completion
4054 * callback function to the reject response ELS IOCB command.
4057 * 0 - Successfully issued reject response
4058 * 1 - Failed to issue reject response
4061 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
4062 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4065 struct lpfc_hba *phba = vport->phba;
4068 struct lpfc_iocbq *elsiocb;
4073 cmdsize = 2 * sizeof(uint32_t);
4074 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4075 ndlp->nlp_DID, ELS_CMD_LS_RJT);
4079 icmd = &elsiocb->iocb;
4080 oldcmd = &oldiocb->iocb;
4081 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4082 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4083 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4085 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4086 pcmd += sizeof(uint32_t);
4087 *((uint32_t *) (pcmd)) = rejectError;
4090 elsiocb->context_un.mbox = mbox;
4092 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4093 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4094 "0129 Xmit ELS RJT x%x response tag x%x "
4095 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4097 rejectError, elsiocb->iotag,
4098 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4099 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
4100 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4101 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4102 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4104 phba->fc_stat.elsXmitLSRJT++;
4105 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4106 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4108 if (rc == IOCB_ERROR) {
4109 lpfc_els_free_iocb(phba, elsiocb);
4116 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4117 * @vport: pointer to a virtual N_Port data structure.
4118 * @oldiocb: pointer to the original lpfc command iocb data structure.
4119 * @ndlp: pointer to a node-list data structure.
4121 * This routine prepares and issues an Accept (ACC) response to Address
4122 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4123 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4125 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4126 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4127 * will be stored into the context1 field of the IOCB for the completion
4128 * callback function to the ADISC Accept response ELS IOCB command.
4131 * 0 - Successfully issued acc adisc response
4132 * 1 - Failed to issue adisc acc response
4135 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4136 struct lpfc_nodelist *ndlp)
4138 struct lpfc_hba *phba = vport->phba;
4140 IOCB_t *icmd, *oldcmd;
4141 struct lpfc_iocbq *elsiocb;
4146 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
4147 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4148 ndlp->nlp_DID, ELS_CMD_ACC);
4152 icmd = &elsiocb->iocb;
4153 oldcmd = &oldiocb->iocb;
4154 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4155 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4157 /* Xmit ADISC ACC response tag <ulpIoTag> */
4158 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4159 "0130 Xmit ADISC ACC response iotag x%x xri: "
4160 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4161 elsiocb->iotag, elsiocb->iocb.ulpContext,
4162 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4164 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4166 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4167 pcmd += sizeof(uint32_t);
4169 ap = (ADISC *) (pcmd);
4170 ap->hardAL_PA = phba->fc_pref_ALPA;
4171 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4172 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4173 ap->DID = be32_to_cpu(vport->fc_myDID);
4175 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4176 "Issue ACC ADISC: did:x%x flg:x%x",
4177 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4179 phba->fc_stat.elsXmitACC++;
4180 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4181 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4182 if (rc == IOCB_ERROR) {
4183 lpfc_els_free_iocb(phba, elsiocb);
4190 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4191 * @vport: pointer to a virtual N_Port data structure.
4192 * @oldiocb: pointer to the original lpfc command iocb data structure.
4193 * @ndlp: pointer to a node-list data structure.
4195 * This routine prepares and issues an Accept (ACC) response to Process
4196 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4197 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4199 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4200 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4201 * will be stored into the context1 field of the IOCB for the completion
4202 * callback function to the PRLI Accept response ELS IOCB command.
4205 * 0 - Successfully issued acc prli response
4206 * 1 - Failed to issue acc prli response
4209 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4210 struct lpfc_nodelist *ndlp)
4212 struct lpfc_hba *phba = vport->phba;
4217 struct lpfc_iocbq *elsiocb;
4222 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
4223 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4224 ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
4228 icmd = &elsiocb->iocb;
4229 oldcmd = &oldiocb->iocb;
4230 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4231 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4233 /* Xmit PRLI ACC response tag <ulpIoTag> */
4234 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4235 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4236 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4237 elsiocb->iotag, elsiocb->iocb.ulpContext,
4238 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4240 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4242 *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
4243 pcmd += sizeof(uint32_t);
4245 /* For PRLI, remainder of payload is PRLI parameter page */
4246 memset(pcmd, 0, sizeof(PRLI));
4248 npr = (PRLI *) pcmd;
4251 * If the remote port is a target and our firmware version is 3.20 or
4252 * later, set the following bits for FC-TAPE support.
4254 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4255 (vpd->rev.feaLevelHigh >= 0x02)) {
4256 npr->ConfmComplAllowed = 1;
4258 npr->TaskRetryIdReq = 1;
4261 npr->acceptRspCode = PRLI_REQ_EXECUTED;
4262 npr->estabImagePair = 1;
4263 npr->readXferRdyDis = 1;
4264 npr->ConfmComplAllowed = 1;
4266 npr->prliType = PRLI_FCP_TYPE;
4267 npr->initiatorFunc = 1;
4269 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4270 "Issue ACC PRLI: did:x%x flg:x%x",
4271 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4273 phba->fc_stat.elsXmitACC++;
4274 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4276 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4277 if (rc == IOCB_ERROR) {
4278 lpfc_els_free_iocb(phba, elsiocb);
4285 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4286 * @vport: pointer to a virtual N_Port data structure.
4287 * @format: rnid command format.
4288 * @oldiocb: pointer to the original lpfc command iocb data structure.
4289 * @ndlp: pointer to a node-list data structure.
4291 * This routine issues a Request Node Identification Data (RNID) Accept
4292 * (ACC) response. It constructs the RNID ACC response command according to
4293 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4294 * issue the response. Note that this command does not need to hold the ndlp
4295 * reference count for the callback. So, the ndlp reference count taken by
4296 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4297 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4298 * there is no ndlp reference available.
4300 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4301 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4302 * will be stored into the context1 field of the IOCB for the completion
4303 * callback function. However, for the RNID Accept Response ELS command,
4304 * this is undone later by this routine after the IOCB is allocated.
4307 * 0 - Successfully issued acc rnid response
4308 * 1 - Failed to issue acc rnid response
4311 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
4312 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4314 struct lpfc_hba *phba = vport->phba;
4316 IOCB_t *icmd, *oldcmd;
4317 struct lpfc_iocbq *elsiocb;
4322 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
4323 + (2 * sizeof(struct lpfc_name));
4325 cmdsize += sizeof(RNID_TOP_DISC);
4327 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4328 ndlp->nlp_DID, ELS_CMD_ACC);
4332 icmd = &elsiocb->iocb;
4333 oldcmd = &oldiocb->iocb;
4334 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4335 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4337 /* Xmit RNID ACC response tag <ulpIoTag> */
4338 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4339 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4340 elsiocb->iotag, elsiocb->iocb.ulpContext);
4341 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4342 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4343 pcmd += sizeof(uint32_t);
4345 memset(pcmd, 0, sizeof(RNID));
4346 rn = (RNID *) (pcmd);
4347 rn->Format = format;
4348 rn->CommonLen = (2 * sizeof(struct lpfc_name));
4349 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4350 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4353 rn->SpecificLen = 0;
4355 case RNID_TOPOLOGY_DISC:
4356 rn->SpecificLen = sizeof(RNID_TOP_DISC);
4357 memcpy(&rn->un.topologyDisc.portName,
4358 &vport->fc_portname, sizeof(struct lpfc_name));
4359 rn->un.topologyDisc.unitType = RNID_HBA;
4360 rn->un.topologyDisc.physPort = 0;
4361 rn->un.topologyDisc.attachedNodes = 0;
4365 rn->SpecificLen = 0;
4369 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4370 "Issue ACC RNID: did:x%x flg:x%x",
4371 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4373 phba->fc_stat.elsXmitACC++;
4374 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4376 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4377 if (rc == IOCB_ERROR) {
4378 lpfc_els_free_iocb(phba, elsiocb);
4385 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4386 * @vport: pointer to a virtual N_Port data structure.
4387 * @iocb: pointer to the lpfc command iocb data structure.
4388 * @ndlp: pointer to a node-list data structure.
4393 lpfc_els_clear_rrq(struct lpfc_vport *vport,
4394 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
4396 struct lpfc_hba *phba = vport->phba;
4401 struct lpfc_node_rrq *prrq;
4404 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
4405 pcmd += sizeof(uint32_t);
4406 rrq = (struct RRQ *)pcmd;
4407 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
4408 rxid = bf_get(rrq_rxid, rrq);
4410 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4411 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4413 be32_to_cpu(bf_get(rrq_did, rrq)),
4414 bf_get(rrq_oxid, rrq),
4416 iocb->iotag, iocb->iocb.ulpContext);
4418 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4419 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4420 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
4421 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
4422 xri = bf_get(rrq_oxid, rrq);
4425 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
4427 lpfc_clr_rrq_active(phba, xri, prrq);
4432 * lpfc_els_rsp_echo_acc - Issue echo acc response
4433 * @vport: pointer to a virtual N_Port data structure.
4434 * @data: pointer to echo data to return in the accept.
4435 * @oldiocb: pointer to the original lpfc command iocb data structure.
4436 * @ndlp: pointer to a node-list data structure.
4439 * 0 - Successfully issued acc echo response
4440 * 1 - Failed to issue acc echo response
4443 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
4444 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4446 struct lpfc_hba *phba = vport->phba;
4447 struct lpfc_iocbq *elsiocb;
4452 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
4454 /* The accumulated length can exceed the BPL_SIZE. For
4455 * now, use this as the limit
4457 if (cmdsize > LPFC_BPL_SIZE)
4458 cmdsize = LPFC_BPL_SIZE;
4459 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4460 ndlp->nlp_DID, ELS_CMD_ACC);
4464 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
4465 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
4467 /* Xmit ECHO ACC response tag <ulpIoTag> */
4468 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4469 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4470 elsiocb->iotag, elsiocb->iocb.ulpContext);
4471 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4472 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4473 pcmd += sizeof(uint32_t);
4474 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
4476 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4477 "Issue ACC ECHO: did:x%x flg:x%x",
4478 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4480 phba->fc_stat.elsXmitACC++;
4481 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4483 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4484 if (rc == IOCB_ERROR) {
4485 lpfc_els_free_iocb(phba, elsiocb);
4492 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4493 * @vport: pointer to a host virtual N_Port data structure.
4495 * This routine issues Address Discover (ADISC) ELS commands to those
4496 * N_Ports which are in node port recovery state and ADISC has not been issued
4497 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4498 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4499 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4500 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4501 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4502 * IOCBs quit for later pick up. On the other hand, after walking through
4503 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4504 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4505 * no more ADISC need to be sent.
4508 * The number of N_Ports with adisc issued.
4511 lpfc_els_disc_adisc(struct lpfc_vport *vport)
4513 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4514 struct lpfc_nodelist *ndlp, *next_ndlp;
4517 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4518 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4519 if (!NLP_CHK_NODE_ACT(ndlp))
4521 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4522 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4523 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
4524 spin_lock_irq(shost->host_lock);
4525 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4526 spin_unlock_irq(shost->host_lock);
4527 ndlp->nlp_prev_state = ndlp->nlp_state;
4528 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4529 lpfc_issue_els_adisc(vport, ndlp, 0);
4531 vport->num_disc_nodes++;
4532 if (vport->num_disc_nodes >=
4533 vport->cfg_discovery_threads) {
4534 spin_lock_irq(shost->host_lock);
4535 vport->fc_flag |= FC_NLP_MORE;
4536 spin_unlock_irq(shost->host_lock);
4541 if (sentadisc == 0) {
4542 spin_lock_irq(shost->host_lock);
4543 vport->fc_flag &= ~FC_NLP_MORE;
4544 spin_unlock_irq(shost->host_lock);
4550 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4551 * @vport: pointer to a host virtual N_Port data structure.
4553 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4554 * which are in node port recovery state, with a @vport. Each time an ELS
4555 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4556 * the per @vport number of discover count (num_disc_nodes) shall be
4557 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4558 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4559 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4560 * later pick up. On the other hand, after walking through all the ndlps with
4561 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4562 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4563 * PLOGI need to be sent.
4566 * The number of N_Ports with plogi issued.
4569 lpfc_els_disc_plogi(struct lpfc_vport *vport)
4571 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4572 struct lpfc_nodelist *ndlp, *next_ndlp;
4575 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4576 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4577 if (!NLP_CHK_NODE_ACT(ndlp))
4579 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4580 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4581 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
4582 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
4583 ndlp->nlp_prev_state = ndlp->nlp_state;
4584 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4585 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4587 vport->num_disc_nodes++;
4588 if (vport->num_disc_nodes >=
4589 vport->cfg_discovery_threads) {
4590 spin_lock_irq(shost->host_lock);
4591 vport->fc_flag |= FC_NLP_MORE;
4592 spin_unlock_irq(shost->host_lock);
4598 lpfc_set_disctmo(vport);
4601 spin_lock_irq(shost->host_lock);
4602 vport->fc_flag &= ~FC_NLP_MORE;
4603 spin_unlock_irq(shost->host_lock);
4609 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
4613 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
4614 desc->payload.els_req = word0;
4615 desc->length = cpu_to_be32(sizeof(desc->payload));
4619 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
4620 uint8_t *page_a0, uint8_t *page_a2)
4622 uint16_t wavelength;
4623 uint16_t temperature;
4629 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
4630 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
4632 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
4634 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
4635 &page_a0[SSF_TRANSCEIVER_CODE_B4];
4636 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
4637 &page_a0[SSF_TRANSCEIVER_CODE_B5];
4639 if ((trasn_code_byte4->fc_sw_laser) ||
4640 (trasn_code_byte5->fc_sw_laser_sl) ||
4641 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
4642 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
4643 } else if (trasn_code_byte4->fc_lw_laser) {
4644 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
4645 page_a0[SSF_WAVELENGTH_B0];
4646 if (wavelength == SFP_WAVELENGTH_LC1310)
4647 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
4648 if (wavelength == SFP_WAVELENGTH_LL1550)
4649 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
4651 /* check if its SFP+ */
4652 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
4653 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
4654 << SFP_FLAG_CT_SHIFT;
4656 /* check if its OPTICAL */
4657 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
4658 SFP_FLAG_IS_OPTICAL_PORT : 0)
4659 << SFP_FLAG_IS_OPTICAL_SHIFT;
4661 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
4662 page_a2[SFF_TEMPERATURE_B0]);
4663 vcc = (page_a2[SFF_VCC_B1] << 8 |
4664 page_a2[SFF_VCC_B0]);
4665 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
4666 page_a2[SFF_TXPOWER_B0]);
4667 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
4668 page_a2[SFF_TX_BIAS_CURRENT_B0]);
4669 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
4670 page_a2[SFF_RXPOWER_B0]);
4671 desc->sfp_info.temperature = cpu_to_be16(temperature);
4672 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
4673 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
4674 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
4675 desc->sfp_info.vcc = cpu_to_be16(vcc);
4677 desc->sfp_info.flags = cpu_to_be16(flag);
4678 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
4682 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
4687 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
4689 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
4691 desc->info.port_type = cpu_to_be32(type);
4693 desc->info.link_status.link_failure_cnt =
4694 cpu_to_be32(stat->linkFailureCnt);
4695 desc->info.link_status.loss_of_synch_cnt =
4696 cpu_to_be32(stat->lossSyncCnt);
4697 desc->info.link_status.loss_of_signal_cnt =
4698 cpu_to_be32(stat->lossSignalCnt);
4699 desc->info.link_status.primitive_seq_proto_err =
4700 cpu_to_be32(stat->primSeqErrCnt);
4701 desc->info.link_status.invalid_trans_word =
4702 cpu_to_be32(stat->invalidXmitWord);
4703 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
4705 desc->length = cpu_to_be32(sizeof(desc->info));
4709 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
4711 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
4713 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
4715 desc->info.CorrectedBlocks =
4716 cpu_to_be32(stat->fecCorrBlkCount);
4717 desc->info.UncorrectableBlocks =
4718 cpu_to_be32(stat->fecUncorrBlkCount);
4720 desc->length = cpu_to_be32(sizeof(desc->info));
4722 return sizeof(struct fc_fec_rdp_desc);
4726 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
4728 uint16_t rdp_cap = 0;
4731 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
4733 switch (phba->fc_linkspeed) {
4734 case LPFC_LINK_SPEED_1GHZ:
4735 rdp_speed = RDP_PS_1GB;
4737 case LPFC_LINK_SPEED_2GHZ:
4738 rdp_speed = RDP_PS_2GB;
4740 case LPFC_LINK_SPEED_4GHZ:
4741 rdp_speed = RDP_PS_4GB;
4743 case LPFC_LINK_SPEED_8GHZ:
4744 rdp_speed = RDP_PS_8GB;
4746 case LPFC_LINK_SPEED_10GHZ:
4747 rdp_speed = RDP_PS_10GB;
4749 case LPFC_LINK_SPEED_16GHZ:
4750 rdp_speed = RDP_PS_16GB;
4752 case LPFC_LINK_SPEED_32GHZ:
4753 rdp_speed = RDP_PS_32GB;
4756 rdp_speed = RDP_PS_UNKNOWN;
4760 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
4762 if (phba->lmt & LMT_32Gb)
4763 rdp_cap |= RDP_PS_32GB;
4764 if (phba->lmt & LMT_16Gb)
4765 rdp_cap |= RDP_PS_16GB;
4766 if (phba->lmt & LMT_10Gb)
4767 rdp_cap |= RDP_PS_10GB;
4768 if (phba->lmt & LMT_8Gb)
4769 rdp_cap |= RDP_PS_8GB;
4770 if (phba->lmt & LMT_4Gb)
4771 rdp_cap |= RDP_PS_4GB;
4772 if (phba->lmt & LMT_2Gb)
4773 rdp_cap |= RDP_PS_2GB;
4774 if (phba->lmt & LMT_1Gb)
4775 rdp_cap |= RDP_PS_1GB;
4778 rdp_cap = RDP_CAP_UNKNOWN;
4780 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
4781 desc->length = cpu_to_be32(sizeof(desc->info));
4785 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
4786 struct lpfc_hba *phba)
4789 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
4791 memcpy(desc->port_names.wwnn, phba->wwnn,
4792 sizeof(desc->port_names.wwnn));
4794 memcpy(desc->port_names.wwpn, &phba->wwpn,
4795 sizeof(desc->port_names.wwpn));
4797 desc->length = cpu_to_be32(sizeof(desc->port_names));
4801 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
4802 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4805 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
4806 if (vport->fc_flag & FC_FABRIC) {
4807 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
4808 sizeof(desc->port_names.wwnn));
4810 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
4811 sizeof(desc->port_names.wwpn));
4812 } else { /* Point to Point */
4813 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
4814 sizeof(desc->port_names.wwnn));
4816 memcpy(desc->port_names.wwnn, &ndlp->nlp_portname,
4817 sizeof(desc->port_names.wwpn));
4820 desc->length = cpu_to_be32(sizeof(desc->port_names));
4824 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
4827 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
4828 struct lpfc_vport *vport = ndlp->vport;
4829 struct lpfc_iocbq *elsiocb;
4830 struct ulp_bde64 *bpl;
4833 struct ls_rjt *stat;
4834 struct fc_rdp_res_frame *rdp_res;
4838 if (status != SUCCESS)
4841 /* This will change once we know the true size of the RDP payload */
4842 cmdsize = sizeof(struct fc_rdp_res_frame);
4844 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
4845 lpfc_max_els_tries, rdp_context->ndlp,
4846 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
4849 goto free_rdp_context;
4851 icmd = &elsiocb->iocb;
4852 icmd->ulpContext = rdp_context->rx_id;
4853 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
4855 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4856 "2171 Xmit RDP response tag x%x xri x%x, "
4857 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
4858 elsiocb->iotag, elsiocb->iocb.ulpContext,
4859 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4861 rdp_res = (struct fc_rdp_res_frame *)
4862 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4863 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4864 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
4865 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4867 /* For RDP payload */
4868 lpfc_rdp_res_link_service(&rdp_res->link_service_desc, ELS_CMD_RDP);
4870 lpfc_rdp_res_sfp_desc(&rdp_res->sfp_desc,
4871 rdp_context->page_a0, rdp_context->page_a2);
4872 lpfc_rdp_res_speed(&rdp_res->portspeed_desc, phba);
4873 lpfc_rdp_res_link_error(&rdp_res->link_error_desc,
4874 &rdp_context->link_stat);
4875 lpfc_rdp_res_diag_port_names(&rdp_res->diag_port_names_desc, phba);
4876 lpfc_rdp_res_attach_port_names(&rdp_res->attached_port_names_desc,
4878 fec_size = lpfc_rdp_res_fec_desc(&rdp_res->fec_desc,
4879 &rdp_context->link_stat);
4880 rdp_res->length = cpu_to_be32(fec_size + RDP_DESC_PAYLOAD_SIZE);
4881 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4883 /* Now that we know the true size of the payload, update the BPL */
4884 bpl = (struct ulp_bde64 *)
4885 (((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
4886 bpl->tus.f.bdeSize = (fec_size + RDP_DESC_PAYLOAD_SIZE + 8);
4887 bpl->tus.f.bdeFlags = 0;
4888 bpl->tus.w = le32_to_cpu(bpl->tus.w);
4890 phba->fc_stat.elsXmitACC++;
4891 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4892 if (rc == IOCB_ERROR)
4893 lpfc_els_free_iocb(phba, elsiocb);
4899 cmdsize = 2 * sizeof(uint32_t);
4900 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
4901 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
4904 goto free_rdp_context;
4906 icmd = &elsiocb->iocb;
4907 icmd->ulpContext = rdp_context->rx_id;
4908 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
4909 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4911 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4912 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
4913 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
4915 phba->fc_stat.elsXmitLSRJT++;
4916 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4917 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4919 if (rc == IOCB_ERROR)
4920 lpfc_els_free_iocb(phba, elsiocb);
4926 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
4928 LPFC_MBOXQ_t *mbox = NULL;
4931 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4933 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
4934 "7105 failed to allocate mailbox memory");
4938 if (lpfc_sli4_dump_page_a0(phba, mbox))
4939 goto prep_mbox_fail;
4940 mbox->vport = rdp_context->ndlp->vport;
4941 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
4942 mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
4943 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4944 if (rc == MBX_NOT_FINISHED)
4945 goto issue_mbox_fail;
4951 mempool_free(mbox, phba->mbox_mem_pool);
4956 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
4957 * @vport: pointer to a host virtual N_Port data structure.
4958 * @cmdiocb: pointer to lpfc command iocb data structure.
4959 * @ndlp: pointer to a node-list data structure.
4961 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
4962 * IOCB. First, the payload of the unsolicited RDP is checked.
4963 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
4964 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
4965 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
4966 * gather all data and send RDP response.
4969 * 0 - Sent the acc response
4970 * 1 - Sent the reject response.
4973 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
4974 struct lpfc_nodelist *ndlp)
4976 struct lpfc_hba *phba = vport->phba;
4977 struct lpfc_dmabuf *pcmd;
4978 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
4979 struct fc_rdp_req_frame *rdp_req;
4980 struct lpfc_rdp_context *rdp_context;
4984 if (phba->sli_rev < LPFC_SLI_REV4 ||
4985 (bf_get(lpfc_sli_intf_if_type,
4986 &phba->sli4_hba.sli_intf) !=
4987 LPFC_SLI_INTF_IF_TYPE_2)) {
4988 rjt_err = LSRJT_UNABLE_TPC;
4989 rjt_expl = LSEXP_REQ_UNSUPPORTED;
4993 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
4994 rjt_err = LSRJT_UNABLE_TPC;
4995 rjt_expl = LSEXP_REQ_UNSUPPORTED;
4999 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5000 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
5003 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5004 "2422 ELS RDP Request "
5005 "dec len %d tag x%x port_id %d len %d\n",
5006 be32_to_cpu(rdp_req->rdp_des_length),
5007 be32_to_cpu(rdp_req->nport_id_desc.tag),
5008 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
5009 be32_to_cpu(rdp_req->nport_id_desc.length));
5011 if (sizeof(struct fc_rdp_nport_desc) !=
5012 be32_to_cpu(rdp_req->rdp_des_length))
5014 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
5016 if (RDP_NPORT_ID_SIZE !=
5017 be32_to_cpu(rdp_req->nport_id_desc.length))
5019 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
5021 rjt_err = LSRJT_UNABLE_TPC;
5025 cmd = &cmdiocb->iocb;
5026 rdp_context->ndlp = lpfc_nlp_get(ndlp);
5027 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
5028 rdp_context->rx_id = cmd->ulpContext;
5029 rdp_context->cmpl = lpfc_els_rdp_cmpl;
5030 if (lpfc_get_rdp_info(phba, rdp_context)) {
5031 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
5032 "2423 Unable to send mailbox");
5034 rjt_err = LSRJT_UNABLE_TPC;
5042 rjt_err = LSRJT_LOGICAL_ERR;
5045 memset(&stat, 0, sizeof(stat));
5046 stat.un.b.lsRjtRsnCode = rjt_err;
5047 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
5048 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5054 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5059 struct lpfc_iocbq *elsiocb;
5060 struct lpfc_nodelist *ndlp;
5061 struct ls_rjt *stat;
5062 union lpfc_sli4_cfg_shdr *shdr;
5063 struct lpfc_lcb_context *lcb_context;
5064 struct fc_lcb_res_frame *lcb_res;
5065 uint32_t cmdsize, shdr_status, shdr_add_status;
5069 lcb_context = (struct lpfc_lcb_context *)pmb->context1;
5070 ndlp = lcb_context->ndlp;
5071 pmb->context1 = NULL;
5072 pmb->context2 = NULL;
5074 shdr = (union lpfc_sli4_cfg_shdr *)
5075 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
5076 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5077 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5079 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
5080 "0194 SET_BEACON_CONFIG mailbox "
5081 "completed with status x%x add_status x%x,"
5082 " mbx status x%x\n",
5083 shdr_status, shdr_add_status, mb->mbxStatus);
5085 if (mb->mbxStatus && !(shdr_status &&
5086 shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)) {
5087 mempool_free(pmb, phba->mbox_mem_pool);
5091 mempool_free(pmb, phba->mbox_mem_pool);
5092 cmdsize = sizeof(struct fc_lcb_res_frame);
5093 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5094 lpfc_max_els_tries, ndlp,
5095 ndlp->nlp_DID, ELS_CMD_ACC);
5097 /* Decrement the ndlp reference count from previous mbox command */
5101 goto free_lcb_context;
5103 lcb_res = (struct fc_lcb_res_frame *)
5104 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5106 icmd = &elsiocb->iocb;
5107 icmd->ulpContext = lcb_context->rx_id;
5108 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5110 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5111 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
5112 lcb_res->lcb_sub_command = lcb_context->sub_command;
5113 lcb_res->lcb_type = lcb_context->type;
5114 lcb_res->lcb_frequency = lcb_context->frequency;
5115 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5116 phba->fc_stat.elsXmitACC++;
5117 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5118 if (rc == IOCB_ERROR)
5119 lpfc_els_free_iocb(phba, elsiocb);
5125 cmdsize = sizeof(struct fc_lcb_res_frame);
5126 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5127 lpfc_max_els_tries, ndlp,
5128 ndlp->nlp_DID, ELS_CMD_LS_RJT);
5131 goto free_lcb_context;
5133 icmd = &elsiocb->iocb;
5134 icmd->ulpContext = lcb_context->rx_id;
5135 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5136 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5138 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
5139 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5140 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5142 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5143 phba->fc_stat.elsXmitLSRJT++;
5144 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5145 if (rc == IOCB_ERROR)
5146 lpfc_els_free_iocb(phba, elsiocb);
5152 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
5153 struct lpfc_lcb_context *lcb_context,
5154 uint32_t beacon_state)
5156 struct lpfc_hba *phba = vport->phba;
5157 LPFC_MBOXQ_t *mbox = NULL;
5161 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5165 len = sizeof(struct lpfc_mbx_set_beacon_config) -
5166 sizeof(struct lpfc_sli4_cfg_mhdr);
5167 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5168 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
5169 LPFC_SLI4_MBX_EMBED);
5170 mbox->context1 = (void *)lcb_context;
5171 mbox->vport = phba->pport;
5172 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
5173 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
5174 phba->sli4_hba.physical_port);
5175 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
5177 bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1);
5178 bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0);
5179 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5180 if (rc == MBX_NOT_FINISHED) {
5181 mempool_free(mbox, phba->mbox_mem_pool);
5190 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5191 * @vport: pointer to a host virtual N_Port data structure.
5192 * @cmdiocb: pointer to lpfc command iocb data structure.
5193 * @ndlp: pointer to a node-list data structure.
5195 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5196 * First, the payload of the unsolicited LCB is checked.
5197 * Then based on Subcommand beacon will either turn on or off.
5200 * 0 - Sent the acc response
5201 * 1 - Sent the reject response.
5204 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5205 struct lpfc_nodelist *ndlp)
5207 struct lpfc_hba *phba = vport->phba;
5208 struct lpfc_dmabuf *pcmd;
5210 struct fc_lcb_request_frame *beacon;
5211 struct lpfc_lcb_context *lcb_context;
5212 uint8_t state, rjt_err;
5215 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
5216 lp = (uint8_t *)pcmd->virt;
5217 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
5219 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5220 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5221 "type x%x frequency %x duration x%x\n",
5222 lp[0], lp[1], lp[2],
5223 beacon->lcb_command,
5224 beacon->lcb_sub_command,
5226 beacon->lcb_frequency,
5227 be16_to_cpu(beacon->lcb_duration));
5229 if (phba->sli_rev < LPFC_SLI_REV4 ||
5230 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5231 LPFC_SLI_INTF_IF_TYPE_2)) {
5232 rjt_err = LSRJT_CMD_UNSUPPORTED;
5236 if (phba->hba_flag & HBA_FCOE_MODE) {
5237 rjt_err = LSRJT_CMD_UNSUPPORTED;
5240 if (beacon->lcb_frequency == 0) {
5241 rjt_err = LSRJT_CMD_UNSUPPORTED;
5244 if ((beacon->lcb_type != LPFC_LCB_GREEN) &&
5245 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5246 rjt_err = LSRJT_CMD_UNSUPPORTED;
5249 if ((beacon->lcb_sub_command != LPFC_LCB_ON) &&
5250 (beacon->lcb_sub_command != LPFC_LCB_OFF)) {
5251 rjt_err = LSRJT_CMD_UNSUPPORTED;
5254 if ((beacon->lcb_sub_command == LPFC_LCB_ON) &&
5255 (beacon->lcb_type != LPFC_LCB_GREEN) &&
5256 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5257 rjt_err = LSRJT_CMD_UNSUPPORTED;
5260 if (be16_to_cpu(beacon->lcb_duration) != 0) {
5261 rjt_err = LSRJT_CMD_UNSUPPORTED;
5265 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
5267 rjt_err = LSRJT_UNABLE_TPC;
5271 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
5272 lcb_context->sub_command = beacon->lcb_sub_command;
5273 lcb_context->type = beacon->lcb_type;
5274 lcb_context->frequency = beacon->lcb_frequency;
5275 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
5276 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
5277 lcb_context->ndlp = lpfc_nlp_get(ndlp);
5278 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
5279 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
5280 LOG_ELS, "0193 failed to send mail box");
5283 rjt_err = LSRJT_UNABLE_TPC;
5288 memset(&stat, 0, sizeof(stat));
5289 stat.un.b.lsRjtRsnCode = rjt_err;
5290 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5296 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5297 * @vport: pointer to a host virtual N_Port data structure.
5299 * This routine cleans up any Registration State Change Notification
5300 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5301 * @vport together with the host_lock is used to prevent multiple thread
5302 * trying to access the RSCN array on a same @vport at the same time.
5305 lpfc_els_flush_rscn(struct lpfc_vport *vport)
5307 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5308 struct lpfc_hba *phba = vport->phba;
5311 spin_lock_irq(shost->host_lock);
5312 if (vport->fc_rscn_flush) {
5313 /* Another thread is walking fc_rscn_id_list on this vport */
5314 spin_unlock_irq(shost->host_lock);
5317 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5318 vport->fc_rscn_flush = 1;
5319 spin_unlock_irq(shost->host_lock);
5321 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5322 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
5323 vport->fc_rscn_id_list[i] = NULL;
5325 spin_lock_irq(shost->host_lock);
5326 vport->fc_rscn_id_cnt = 0;
5327 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
5328 spin_unlock_irq(shost->host_lock);
5329 lpfc_can_disctmo(vport);
5330 /* Indicate we are done walking this fc_rscn_id_list */
5331 vport->fc_rscn_flush = 0;
5335 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5336 * @vport: pointer to a host virtual N_Port data structure.
5337 * @did: remote destination port identifier.
5339 * This routine checks whether there is any pending Registration State
5340 * Configuration Notification (RSCN) to a @did on @vport.
5343 * None zero - The @did matched with a pending rscn
5344 * 0 - not able to match @did with a pending rscn
5347 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
5352 uint32_t payload_len, i;
5353 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5355 ns_did.un.word = did;
5357 /* Never match fabric nodes for RSCNs */
5358 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
5361 /* If we are doing a FULL RSCN rediscovery, match everything */
5362 if (vport->fc_flag & FC_RSCN_DISCOVERY)
5365 spin_lock_irq(shost->host_lock);
5366 if (vport->fc_rscn_flush) {
5367 /* Another thread is walking fc_rscn_id_list on this vport */
5368 spin_unlock_irq(shost->host_lock);
5371 /* Indicate we are walking fc_rscn_id_list on this vport */
5372 vport->fc_rscn_flush = 1;
5373 spin_unlock_irq(shost->host_lock);
5374 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5375 lp = vport->fc_rscn_id_list[i]->virt;
5376 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5377 payload_len -= sizeof(uint32_t); /* take off word 0 */
5378 while (payload_len) {
5379 rscn_did.un.word = be32_to_cpu(*lp++);
5380 payload_len -= sizeof(uint32_t);
5381 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
5382 case RSCN_ADDRESS_FORMAT_PORT:
5383 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5384 && (ns_did.un.b.area == rscn_did.un.b.area)
5385 && (ns_did.un.b.id == rscn_did.un.b.id))
5386 goto return_did_out;
5388 case RSCN_ADDRESS_FORMAT_AREA:
5389 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5390 && (ns_did.un.b.area == rscn_did.un.b.area))
5391 goto return_did_out;
5393 case RSCN_ADDRESS_FORMAT_DOMAIN:
5394 if (ns_did.un.b.domain == rscn_did.un.b.domain)
5395 goto return_did_out;
5397 case RSCN_ADDRESS_FORMAT_FABRIC:
5398 goto return_did_out;
5402 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5403 vport->fc_rscn_flush = 0;
5406 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5407 vport->fc_rscn_flush = 0;
5412 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5413 * @vport: pointer to a host virtual N_Port data structure.
5415 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5416 * state machine for a @vport's nodes that are with pending RSCN (Registration
5417 * State Change Notification).
5420 * 0 - Successful (currently alway return 0)
5423 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
5425 struct lpfc_nodelist *ndlp = NULL;
5427 /* Move all affected nodes by pending RSCNs to NPR state. */
5428 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5429 if (!NLP_CHK_NODE_ACT(ndlp) ||
5430 (ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
5431 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
5433 lpfc_disc_state_machine(vport, ndlp, NULL,
5434 NLP_EVT_DEVICE_RECOVERY);
5435 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5441 * lpfc_send_rscn_event - Send an RSCN event to management application
5442 * @vport: pointer to a host virtual N_Port data structure.
5443 * @cmdiocb: pointer to lpfc command iocb data structure.
5445 * lpfc_send_rscn_event sends an RSCN netlink event to management
5449 lpfc_send_rscn_event(struct lpfc_vport *vport,
5450 struct lpfc_iocbq *cmdiocb)
5452 struct lpfc_dmabuf *pcmd;
5453 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5454 uint32_t *payload_ptr;
5455 uint32_t payload_len;
5456 struct lpfc_rscn_event_header *rscn_event_data;
5458 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5459 payload_ptr = (uint32_t *) pcmd->virt;
5460 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
5462 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
5463 payload_len, GFP_KERNEL);
5464 if (!rscn_event_data) {
5465 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5466 "0147 Failed to allocate memory for RSCN event\n");
5469 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
5470 rscn_event_data->payload_length = payload_len;
5471 memcpy(rscn_event_data->rscn_payload, payload_ptr,
5474 fc_host_post_vendor_event(shost,
5475 fc_get_event_number(),
5476 sizeof(struct lpfc_rscn_event_header) + payload_len,
5477 (char *)rscn_event_data,
5480 kfree(rscn_event_data);
5484 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5485 * @vport: pointer to a host virtual N_Port data structure.
5486 * @cmdiocb: pointer to lpfc command iocb data structure.
5487 * @ndlp: pointer to a node-list data structure.
5489 * This routine processes an unsolicited RSCN (Registration State Change
5490 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5491 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5492 * discover state machine is about to begin discovery, it just accepts the
5493 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5494 * contains N_Port IDs for other vports on this HBA, it just accepts the
5495 * RSCN and ignore processing it. If the state machine is in the recovery
5496 * state, the fc_rscn_id_list of this @vport is walked and the
5497 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5498 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5499 * routine is invoked to handle the RSCN event.
5502 * 0 - Just sent the acc response
5503 * 1 - Sent the acc response and waited for name server completion
5506 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5507 struct lpfc_nodelist *ndlp)
5509 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5510 struct lpfc_hba *phba = vport->phba;
5511 struct lpfc_dmabuf *pcmd;
5512 uint32_t *lp, *datap;
5513 uint32_t payload_len, length, nportid, *cmd;
5515 int rscn_id = 0, hba_id = 0;
5518 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5519 lp = (uint32_t *) pcmd->virt;
5521 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5522 payload_len -= sizeof(uint32_t); /* take off word 0 */
5524 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5525 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5526 vport->fc_flag, payload_len, *lp,
5527 vport->fc_rscn_id_cnt);
5529 /* Send an RSCN event to the management application */
5530 lpfc_send_rscn_event(vport, cmdiocb);
5532 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
5533 fc_host_post_event(shost, fc_get_event_number(),
5534 FCH_EVT_RSCN, lp[i]);
5536 /* If we are about to begin discovery, just ACC the RSCN.
5537 * Discovery processing will satisfy it.
5539 if (vport->port_state <= LPFC_NS_QRY) {
5540 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5541 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5542 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5544 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5548 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5549 * just ACC and ignore it.
5551 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5552 !(vport->cfg_peer_port_login)) {
5557 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
5558 i -= sizeof(uint32_t);
5560 if (lpfc_find_vport_by_did(phba, nportid))
5563 if (rscn_id == hba_id) {
5564 /* ALL NPortIDs in RSCN are on HBA */
5565 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5567 "Data: x%x x%x x%x x%x\n",
5568 vport->fc_flag, payload_len,
5569 *lp, vport->fc_rscn_id_cnt);
5570 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5571 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
5572 ndlp->nlp_DID, vport->port_state,
5575 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
5581 spin_lock_irq(shost->host_lock);
5582 if (vport->fc_rscn_flush) {
5583 /* Another thread is walking fc_rscn_id_list on this vport */
5584 vport->fc_flag |= FC_RSCN_DISCOVERY;
5585 spin_unlock_irq(shost->host_lock);
5587 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5590 /* Indicate we are walking fc_rscn_id_list on this vport */
5591 vport->fc_rscn_flush = 1;
5592 spin_unlock_irq(shost->host_lock);
5593 /* Get the array count after successfully have the token */
5594 rscn_cnt = vport->fc_rscn_id_cnt;
5595 /* If we are already processing an RSCN, save the received
5596 * RSCN payload buffer, cmdiocb->context2 to process later.
5598 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
5599 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5600 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
5601 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5603 spin_lock_irq(shost->host_lock);
5604 vport->fc_flag |= FC_RSCN_DEFERRED;
5605 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
5606 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
5607 vport->fc_flag |= FC_RSCN_MODE;
5608 spin_unlock_irq(shost->host_lock);
5610 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
5611 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
5614 (payload_len + length <= LPFC_BPL_SIZE)) {
5615 *cmd &= ELS_CMD_MASK;
5616 *cmd |= cpu_to_be32(payload_len + length);
5617 memcpy(((uint8_t *)cmd) + length, lp,
5620 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
5621 vport->fc_rscn_id_cnt++;
5622 /* If we zero, cmdiocb->context2, the calling
5623 * routine will not try to free it.
5625 cmdiocb->context2 = NULL;
5628 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5629 "0235 Deferred RSCN "
5630 "Data: x%x x%x x%x\n",
5631 vport->fc_rscn_id_cnt, vport->fc_flag,
5634 vport->fc_flag |= FC_RSCN_DISCOVERY;
5635 spin_unlock_irq(shost->host_lock);
5636 /* ReDiscovery RSCN */
5637 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5638 "0234 ReDiscovery RSCN "
5639 "Data: x%x x%x x%x\n",
5640 vport->fc_rscn_id_cnt, vport->fc_flag,
5643 /* Indicate we are done walking fc_rscn_id_list on this vport */
5644 vport->fc_rscn_flush = 0;
5646 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5647 /* send RECOVERY event for ALL nodes that match RSCN payload */
5648 lpfc_rscn_recovery_check(vport);
5649 spin_lock_irq(shost->host_lock);
5650 vport->fc_flag &= ~FC_RSCN_DEFERRED;
5651 spin_unlock_irq(shost->host_lock);
5654 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5655 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
5656 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5658 spin_lock_irq(shost->host_lock);
5659 vport->fc_flag |= FC_RSCN_MODE;
5660 spin_unlock_irq(shost->host_lock);
5661 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
5662 /* Indicate we are done walking fc_rscn_id_list on this vport */
5663 vport->fc_rscn_flush = 0;
5665 * If we zero, cmdiocb->context2, the calling routine will
5666 * not try to free it.
5668 cmdiocb->context2 = NULL;
5669 lpfc_set_disctmo(vport);
5671 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5672 /* send RECOVERY event for ALL nodes that match RSCN payload */
5673 lpfc_rscn_recovery_check(vport);
5674 return lpfc_els_handle_rscn(vport);
5678 * lpfc_els_handle_rscn - Handle rscn for a vport
5679 * @vport: pointer to a host virtual N_Port data structure.
5681 * This routine handles the Registration State Configuration Notification
5682 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5683 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5684 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5685 * NameServer shall be issued. If CT command to the NameServer fails to be
5686 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5687 * RSCN activities with the @vport.
5690 * 0 - Cleaned up rscn on the @vport
5691 * 1 - Wait for plogi to name server before proceed
5694 lpfc_els_handle_rscn(struct lpfc_vport *vport)
5696 struct lpfc_nodelist *ndlp;
5697 struct lpfc_hba *phba = vport->phba;
5699 /* Ignore RSCN if the port is being torn down. */
5700 if (vport->load_flag & FC_UNLOADING) {
5701 lpfc_els_flush_rscn(vport);
5705 /* Start timer for RSCN processing */
5706 lpfc_set_disctmo(vport);
5708 /* RSCN processed */
5709 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5710 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5711 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
5714 /* To process RSCN, first compare RSCN data with NameServer */
5715 vport->fc_ns_retry = 0;
5716 vport->num_disc_nodes = 0;
5718 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5719 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
5720 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
5721 /* Good ndlp, issue CT Request to NameServer */
5722 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0)
5723 /* Wait for NameServer query cmpl before we can
5727 /* If login to NameServer does not exist, issue one */
5728 /* Good status, issue PLOGI to NameServer */
5729 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5730 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5731 /* Wait for NameServer login cmpl before we can
5736 ndlp = lpfc_enable_node(vport, ndlp,
5737 NLP_STE_PLOGI_ISSUE);
5739 lpfc_els_flush_rscn(vport);
5742 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
5744 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
5746 lpfc_els_flush_rscn(vport);
5749 lpfc_nlp_init(vport, ndlp, NameServer_DID);
5750 ndlp->nlp_prev_state = ndlp->nlp_state;
5751 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
5753 ndlp->nlp_type |= NLP_FABRIC;
5754 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
5755 /* Wait for NameServer login cmpl before we can
5761 lpfc_els_flush_rscn(vport);
5766 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
5767 * @vport: pointer to a host virtual N_Port data structure.
5768 * @cmdiocb: pointer to lpfc command iocb data structure.
5769 * @ndlp: pointer to a node-list data structure.
5771 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
5772 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
5773 * point topology. As an unsolicited FLOGI should not be received in a loop
5774 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
5775 * lpfc_check_sparm() routine is invoked to check the parameters in the
5776 * unsolicited FLOGI. If parameters validation failed, the routine
5777 * lpfc_els_rsp_reject() shall be called with reject reason code set to
5778 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
5779 * FLOGI shall be compared with the Port WWN of the @vport to determine who
5780 * will initiate PLOGI. The higher lexicographical value party shall has
5781 * higher priority (as the winning port) and will initiate PLOGI and
5782 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
5783 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
5784 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
5787 * 0 - Successfully processed the unsolicited flogi
5788 * 1 - Failed to process the unsolicited flogi
5791 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5792 struct lpfc_nodelist *ndlp)
5794 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5795 struct lpfc_hba *phba = vport->phba;
5796 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5797 uint32_t *lp = (uint32_t *) pcmd->virt;
5798 IOCB_t *icmd = &cmdiocb->iocb;
5799 struct serv_parm *sp;
5803 uint32_t fc_flag = 0;
5804 uint32_t port_state = 0;
5807 sp = (struct serv_parm *) lp;
5809 /* FLOGI received */
5811 lpfc_set_disctmo(vport);
5813 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5814 /* We should never receive a FLOGI in loop mode, ignore it */
5815 did = icmd->un.elsreq64.remoteID;
5817 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
5819 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5820 "0113 An FLOGI ELS command x%x was "
5821 "received from DID x%x in Loop Mode\n",
5826 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
5830 * If our portname is greater than the remote portname,
5831 * then we initiate Nport login.
5834 rc = memcmp(&vport->fc_portname, &sp->portName,
5835 sizeof(struct lpfc_name));
5838 if (phba->sli_rev < LPFC_SLI_REV4) {
5839 mbox = mempool_alloc(phba->mbox_mem_pool,
5843 lpfc_linkdown(phba);
5844 lpfc_init_link(phba, mbox,
5846 phba->cfg_link_speed);
5847 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
5848 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5849 mbox->vport = vport;
5850 rc = lpfc_sli_issue_mbox(phba, mbox,
5852 lpfc_set_loopback_flag(phba);
5853 if (rc == MBX_NOT_FINISHED)
5854 mempool_free(mbox, phba->mbox_mem_pool);
5858 /* abort the flogi coming back to ourselves
5859 * due to external loopback on the port.
5861 lpfc_els_abort_flogi(phba);
5864 } else if (rc > 0) { /* greater than */
5865 spin_lock_irq(shost->host_lock);
5866 vport->fc_flag |= FC_PT2PT_PLOGI;
5867 spin_unlock_irq(shost->host_lock);
5869 /* If we have the high WWPN we can assign our own
5870 * myDID; otherwise, we have to WAIT for a PLOGI
5871 * from the remote NPort to find out what it
5874 vport->fc_myDID = PT2PT_LocalID;
5876 vport->fc_myDID = PT2PT_RemoteID;
5880 * The vport state should go to LPFC_FLOGI only
5881 * AFTER we issue a FLOGI, not receive one.
5883 spin_lock_irq(shost->host_lock);
5884 fc_flag = vport->fc_flag;
5885 port_state = vport->port_state;
5886 vport->fc_flag |= FC_PT2PT;
5887 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
5888 spin_unlock_irq(shost->host_lock);
5889 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5890 "3311 Rcv Flogi PS x%x new PS x%x "
5891 "fc_flag x%x new fc_flag x%x\n",
5892 port_state, vport->port_state,
5893 fc_flag, vport->fc_flag);
5896 * We temporarily set fc_myDID to make it look like we are
5897 * a Fabric. This is done just so we end up with the right
5898 * did / sid on the FLOGI ACC rsp.
5900 did = vport->fc_myDID;
5901 vport->fc_myDID = Fabric_DID;
5903 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
5906 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
5908 /* Now lets put fc_myDID back to what its supposed to be */
5909 vport->fc_myDID = did;
5915 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
5916 * @vport: pointer to a host virtual N_Port data structure.
5917 * @cmdiocb: pointer to lpfc command iocb data structure.
5918 * @ndlp: pointer to a node-list data structure.
5920 * This routine processes Request Node Identification Data (RNID) IOCB
5921 * received as an ELS unsolicited event. Only when the RNID specified format
5922 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
5923 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
5924 * Accept (ACC) the RNID ELS command. All the other RNID formats are
5925 * rejected by invoking the lpfc_els_rsp_reject() routine.
5928 * 0 - Successfully processed rnid iocb (currently always return 0)
5931 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5932 struct lpfc_nodelist *ndlp)
5934 struct lpfc_dmabuf *pcmd;
5940 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5941 lp = (uint32_t *) pcmd->virt;
5948 switch (rn->Format) {
5950 case RNID_TOPOLOGY_DISC:
5952 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
5955 /* Reject this request because format not supported */
5956 stat.un.b.lsRjtRsvd0 = 0;
5957 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5958 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
5959 stat.un.b.vendorUnique = 0;
5960 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
5967 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
5968 * @vport: pointer to a host virtual N_Port data structure.
5969 * @cmdiocb: pointer to lpfc command iocb data structure.
5970 * @ndlp: pointer to a node-list data structure.
5973 * 0 - Successfully processed echo iocb (currently always return 0)
5976 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5977 struct lpfc_nodelist *ndlp)
5981 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
5983 /* skip over first word of echo command to find echo data */
5984 pcmd += sizeof(uint32_t);
5986 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
5991 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
5992 * @vport: pointer to a host virtual N_Port data structure.
5993 * @cmdiocb: pointer to lpfc command iocb data structure.
5994 * @ndlp: pointer to a node-list data structure.
5996 * This routine processes a Link Incident Report Registration(LIRR) IOCB
5997 * received as an ELS unsolicited event. Currently, this function just invokes
5998 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
6001 * 0 - Successfully processed lirr iocb (currently always return 0)
6004 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6005 struct lpfc_nodelist *ndlp)
6009 /* For now, unconditionally reject this command */
6010 stat.un.b.lsRjtRsvd0 = 0;
6011 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6012 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6013 stat.un.b.vendorUnique = 0;
6014 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6019 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
6020 * @vport: pointer to a host virtual N_Port data structure.
6021 * @cmdiocb: pointer to lpfc command iocb data structure.
6022 * @ndlp: pointer to a node-list data structure.
6024 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
6025 * received as an ELS unsolicited event. A request to RRQ shall only
6026 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
6027 * Nx_Port N_Port_ID of the target Exchange is the same as the
6028 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
6029 * not accepted, an LS_RJT with reason code "Unable to perform
6030 * command request" and reason code explanation "Invalid Originator
6031 * S_ID" shall be returned. For now, we just unconditionally accept
6032 * RRQ from the target.
6035 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6036 struct lpfc_nodelist *ndlp)
6038 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6039 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6040 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
6044 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6045 * @phba: pointer to lpfc hba data structure.
6046 * @pmb: pointer to the driver internal queue element for mailbox command.
6048 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6049 * mailbox command. This callback function is to actually send the Accept
6050 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6051 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6052 * mailbox command, constructs the RPS response with the link statistics
6053 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6054 * response to the RPS.
6056 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6057 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6058 * will be stored into the context1 field of the IOCB for the completion
6059 * callback function to the RPS Accept Response ELS IOCB command.
6063 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6067 struct RLS_RSP *rls_rsp;
6069 struct lpfc_iocbq *elsiocb;
6070 struct lpfc_nodelist *ndlp;
6077 ndlp = (struct lpfc_nodelist *) pmb->context2;
6078 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6079 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6080 pmb->context1 = NULL;
6081 pmb->context2 = NULL;
6083 if (mb->mbxStatus) {
6084 mempool_free(pmb, phba->mbox_mem_pool);
6088 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
6089 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6090 lpfc_max_els_tries, ndlp,
6091 ndlp->nlp_DID, ELS_CMD_ACC);
6093 /* Decrement the ndlp reference count from previous mbox command */
6097 mempool_free(pmb, phba->mbox_mem_pool);
6101 icmd = &elsiocb->iocb;
6102 icmd->ulpContext = rxid;
6103 icmd->unsli3.rcvsli3.ox_id = oxid;
6105 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6106 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6107 pcmd += sizeof(uint32_t); /* Skip past command */
6108 rls_rsp = (struct RLS_RSP *)pcmd;
6110 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6111 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6112 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6113 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6114 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6115 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6116 mempool_free(pmb, phba->mbox_mem_pool);
6117 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6118 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6119 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6120 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6121 elsiocb->iotag, elsiocb->iocb.ulpContext,
6122 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6124 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6125 phba->fc_stat.elsXmitACC++;
6126 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6127 lpfc_els_free_iocb(phba, elsiocb);
6131 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6132 * @phba: pointer to lpfc hba data structure.
6133 * @pmb: pointer to the driver internal queue element for mailbox command.
6135 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6136 * mailbox command. This callback function is to actually send the Accept
6137 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6138 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6139 * mailbox command, constructs the RPS response with the link statistics
6140 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6141 * response to the RPS.
6143 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6144 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6145 * will be stored into the context1 field of the IOCB for the completion
6146 * callback function to the RPS Accept Response ELS IOCB command.
6150 lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6156 struct lpfc_iocbq *elsiocb;
6157 struct lpfc_nodelist *ndlp;
6165 ndlp = (struct lpfc_nodelist *) pmb->context2;
6166 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6167 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6168 pmb->context1 = NULL;
6169 pmb->context2 = NULL;
6171 if (mb->mbxStatus) {
6172 mempool_free(pmb, phba->mbox_mem_pool);
6176 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
6177 mempool_free(pmb, phba->mbox_mem_pool);
6178 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6179 lpfc_max_els_tries, ndlp,
6180 ndlp->nlp_DID, ELS_CMD_ACC);
6182 /* Decrement the ndlp reference count from previous mbox command */
6188 icmd = &elsiocb->iocb;
6189 icmd->ulpContext = rxid;
6190 icmd->unsli3.rcvsli3.ox_id = oxid;
6192 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6193 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6194 pcmd += sizeof(uint32_t); /* Skip past command */
6195 rps_rsp = (RPS_RSP *)pcmd;
6197 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
6201 if (phba->pport->fc_flag & FC_FABRIC)
6205 rps_rsp->portStatus = cpu_to_be16(status);
6206 rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6207 rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6208 rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6209 rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6210 rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6211 rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6212 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6213 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6214 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6215 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6216 elsiocb->iotag, elsiocb->iocb.ulpContext,
6217 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6219 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6220 phba->fc_stat.elsXmitACC++;
6221 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6222 lpfc_els_free_iocb(phba, elsiocb);
6227 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6228 * @vport: pointer to a host virtual N_Port data structure.
6229 * @cmdiocb: pointer to lpfc command iocb data structure.
6230 * @ndlp: pointer to a node-list data structure.
6232 * This routine processes Read Port Status (RPL) IOCB received as an
6233 * ELS unsolicited event. It first checks the remote port state. If the
6234 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6235 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6236 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6237 * for reading the HBA link statistics. It is for the callback function,
6238 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6239 * to actually sending out RPL Accept (ACC) response.
6242 * 0 - Successfully processed rls iocb (currently always return 0)
6245 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6246 struct lpfc_nodelist *ndlp)
6248 struct lpfc_hba *phba = vport->phba;
6252 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6253 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6254 /* reject the unsolicited RPS request and done with it */
6257 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6259 lpfc_read_lnk_stat(phba, mbox);
6260 mbox->context1 = (void *)((unsigned long)
6261 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6262 cmdiocb->iocb.ulpContext)); /* rx_id */
6263 mbox->context2 = lpfc_nlp_get(ndlp);
6264 mbox->vport = vport;
6265 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
6266 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6267 != MBX_NOT_FINISHED)
6268 /* Mbox completion will send ELS Response */
6270 /* Decrement reference count used for the failed mbox
6274 mempool_free(mbox, phba->mbox_mem_pool);
6277 /* issue rejection response */
6278 stat.un.b.lsRjtRsvd0 = 0;
6279 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6280 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6281 stat.un.b.vendorUnique = 0;
6282 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6287 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6288 * @vport: pointer to a host virtual N_Port data structure.
6289 * @cmdiocb: pointer to lpfc command iocb data structure.
6290 * @ndlp: pointer to a node-list data structure.
6292 * This routine processes Read Timout Value (RTV) IOCB received as an
6293 * ELS unsolicited event. It first checks the remote port state. If the
6294 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6295 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6296 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6297 * Value (RTV) unsolicited IOCB event.
6299 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6300 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6301 * will be stored into the context1 field of the IOCB for the completion
6302 * callback function to the RPS Accept Response ELS IOCB command.
6305 * 0 - Successfully processed rtv iocb (currently always return 0)
6308 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6309 struct lpfc_nodelist *ndlp)
6311 struct lpfc_hba *phba = vport->phba;
6313 struct RTV_RSP *rtv_rsp;
6315 struct lpfc_iocbq *elsiocb;
6319 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6320 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6321 /* reject the unsolicited RPS request and done with it */
6324 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
6325 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6326 lpfc_max_els_tries, ndlp,
6327 ndlp->nlp_DID, ELS_CMD_ACC);
6332 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6333 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6334 pcmd += sizeof(uint32_t); /* Skip past command */
6336 /* use the command's xri in the response */
6337 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
6338 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
6340 rtv_rsp = (struct RTV_RSP *)pcmd;
6342 /* populate RTV payload */
6343 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
6344 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
6345 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
6346 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
6347 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
6349 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6350 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6351 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6352 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6353 "Data: x%x x%x x%x\n",
6354 elsiocb->iotag, elsiocb->iocb.ulpContext,
6355 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6357 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
6358 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6359 phba->fc_stat.elsXmitACC++;
6360 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6361 lpfc_els_free_iocb(phba, elsiocb);
6365 /* issue rejection response */
6366 stat.un.b.lsRjtRsvd0 = 0;
6367 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6368 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6369 stat.un.b.vendorUnique = 0;
6370 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6374 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6375 * @vport: pointer to a host virtual N_Port data structure.
6376 * @cmdiocb: pointer to lpfc command iocb data structure.
6377 * @ndlp: pointer to a node-list data structure.
6379 * This routine processes Read Port Status (RPS) IOCB received as an
6380 * ELS unsolicited event. It first checks the remote port state. If the
6381 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6382 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6383 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6384 * for reading the HBA link statistics. It is for the callback function,
6385 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6386 * to actually sending out RPS Accept (ACC) response.
6389 * 0 - Successfully processed rps iocb (currently always return 0)
6392 lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6393 struct lpfc_nodelist *ndlp)
6395 struct lpfc_hba *phba = vport->phba;
6399 struct lpfc_dmabuf *pcmd;
6403 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6404 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6405 /* reject the unsolicited RPS request and done with it */
6408 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6409 lp = (uint32_t *) pcmd->virt;
6410 flag = (be32_to_cpu(*lp++) & 0xf);
6414 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
6415 ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
6416 sizeof(struct lpfc_name)) == 0))) {
6418 printk("Fix me....\n");
6420 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6422 lpfc_read_lnk_stat(phba, mbox);
6423 mbox->context1 = (void *)((unsigned long)
6424 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6425 cmdiocb->iocb.ulpContext)); /* rx_id */
6426 mbox->context2 = lpfc_nlp_get(ndlp);
6427 mbox->vport = vport;
6428 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
6429 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6430 != MBX_NOT_FINISHED)
6431 /* Mbox completion will send ELS Response */
6433 /* Decrement reference count used for the failed mbox
6437 mempool_free(mbox, phba->mbox_mem_pool);
6442 /* issue rejection response */
6443 stat.un.b.lsRjtRsvd0 = 0;
6444 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6445 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6446 stat.un.b.vendorUnique = 0;
6447 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6451 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6452 * @vport: pointer to a host virtual N_Port data structure.
6453 * @ndlp: pointer to a node-list data structure.
6454 * @did: DID of the target.
6455 * @rrq: Pointer to the rrq struct.
6457 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6458 * Successful the the completion handler will clear the RRQ.
6461 * 0 - Successfully sent rrq els iocb.
6462 * 1 - Failed to send rrq els iocb.
6465 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
6466 uint32_t did, struct lpfc_node_rrq *rrq)
6468 struct lpfc_hba *phba = vport->phba;
6469 struct RRQ *els_rrq;
6470 struct lpfc_iocbq *elsiocb;
6476 if (ndlp != rrq->ndlp)
6478 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
6481 /* If ndlp is not NULL, we will bump the reference count on it */
6482 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
6483 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
6488 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6490 /* For RRQ request, remainder of payload is Exchange IDs */
6491 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
6492 pcmd += sizeof(uint32_t);
6493 els_rrq = (struct RRQ *) pcmd;
6495 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
6496 bf_set(rrq_rxid, els_rrq, rrq->rxid);
6497 bf_set(rrq_did, els_rrq, vport->fc_myDID);
6498 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
6499 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
6502 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
6503 "Issue RRQ: did:x%x",
6504 did, rrq->xritag, rrq->rxid);
6505 elsiocb->context_un.rrq = rrq;
6506 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
6507 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6509 if (ret == IOCB_ERROR) {
6510 lpfc_els_free_iocb(phba, elsiocb);
6517 * lpfc_send_rrq - Sends ELS RRQ if needed.
6518 * @phba: pointer to lpfc hba data structure.
6519 * @rrq: pointer to the active rrq.
6521 * This routine will call the lpfc_issue_els_rrq if the rrq is
6522 * still active for the xri. If this function returns a failure then
6523 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6525 * Returns 0 Success.
6529 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
6531 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
6533 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
6534 return lpfc_issue_els_rrq(rrq->vport, ndlp,
6541 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6542 * @vport: pointer to a host virtual N_Port data structure.
6543 * @cmdsize: size of the ELS command.
6544 * @oldiocb: pointer to the original lpfc command iocb data structure.
6545 * @ndlp: pointer to a node-list data structure.
6547 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6548 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6550 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6551 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6552 * will be stored into the context1 field of the IOCB for the completion
6553 * callback function to the RPL Accept Response ELS command.
6556 * 0 - Successfully issued ACC RPL ELS command
6557 * 1 - Failed to issue ACC RPL ELS command
6560 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
6561 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
6563 struct lpfc_hba *phba = vport->phba;
6564 IOCB_t *icmd, *oldcmd;
6566 struct lpfc_iocbq *elsiocb;
6569 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
6570 ndlp->nlp_DID, ELS_CMD_ACC);
6575 icmd = &elsiocb->iocb;
6576 oldcmd = &oldiocb->iocb;
6577 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6578 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
6580 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6581 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6582 pcmd += sizeof(uint16_t);
6583 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
6584 pcmd += sizeof(uint16_t);
6586 /* Setup the RPL ACC payload */
6587 rpl_rsp.listLen = be32_to_cpu(1);
6589 rpl_rsp.port_num_blk.portNum = 0;
6590 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
6591 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
6592 sizeof(struct lpfc_name));
6593 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
6594 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
6595 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6596 "0120 Xmit ELS RPL ACC response tag x%x "
6597 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
6599 elsiocb->iotag, elsiocb->iocb.ulpContext,
6600 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6602 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6603 phba->fc_stat.elsXmitACC++;
6604 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
6606 lpfc_els_free_iocb(phba, elsiocb);
6613 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
6614 * @vport: pointer to a host virtual N_Port data structure.
6615 * @cmdiocb: pointer to lpfc command iocb data structure.
6616 * @ndlp: pointer to a node-list data structure.
6618 * This routine processes Read Port List (RPL) IOCB received as an ELS
6619 * unsolicited event. It first checks the remote port state. If the remote
6620 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
6621 * invokes the lpfc_els_rsp_reject() routine to send reject response.
6622 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
6623 * to accept the RPL.
6626 * 0 - Successfully processed rpl iocb (currently always return 0)
6629 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6630 struct lpfc_nodelist *ndlp)
6632 struct lpfc_dmabuf *pcmd;
6639 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6640 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
6641 /* issue rejection response */
6642 stat.un.b.lsRjtRsvd0 = 0;
6643 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6644 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6645 stat.un.b.vendorUnique = 0;
6646 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6648 /* rejected the unsolicited RPL request and done with it */
6652 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6653 lp = (uint32_t *) pcmd->virt;
6654 rpl = (RPL *) (lp + 1);
6655 maxsize = be32_to_cpu(rpl->maxsize);
6657 /* We support only one port */
6658 if ((rpl->index == 0) &&
6660 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
6661 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
6663 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
6665 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
6671 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6672 * @vport: pointer to a virtual N_Port data structure.
6673 * @cmdiocb: pointer to lpfc command iocb data structure.
6674 * @ndlp: pointer to a node-list data structure.
6676 * This routine processes Fibre Channel Address Resolution Protocol
6677 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6678 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6679 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6680 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6681 * remote PortName is compared against the FC PortName stored in the @vport
6682 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6683 * compared against the FC NodeName stored in the @vport data structure.
6684 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6685 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6686 * invoked to send out FARP Response to the remote node. Before sending the
6687 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6688 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6689 * routine is invoked to log into the remote port first.
6692 * 0 - Either the FARP Match Mode not supported or successfully processed
6695 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6696 struct lpfc_nodelist *ndlp)
6698 struct lpfc_dmabuf *pcmd;
6702 uint32_t cmd, cnt, did;
6704 icmd = &cmdiocb->iocb;
6705 did = icmd->un.elsreq64.remoteID;
6706 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6707 lp = (uint32_t *) pcmd->virt;
6711 /* FARP-REQ received from DID <did> */
6712 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6713 "0601 FARP-REQ received from DID x%x\n", did);
6714 /* We will only support match on WWPN or WWNN */
6715 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
6720 /* If this FARP command is searching for my portname */
6721 if (fp->Mflags & FARP_MATCH_PORT) {
6722 if (memcmp(&fp->RportName, &vport->fc_portname,
6723 sizeof(struct lpfc_name)) == 0)
6727 /* If this FARP command is searching for my nodename */
6728 if (fp->Mflags & FARP_MATCH_NODE) {
6729 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
6730 sizeof(struct lpfc_name)) == 0)
6735 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
6736 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
6737 /* Log back into the node before sending the FARP. */
6738 if (fp->Rflags & FARP_REQUEST_PLOGI) {
6739 ndlp->nlp_prev_state = ndlp->nlp_state;
6740 lpfc_nlp_set_state(vport, ndlp,
6741 NLP_STE_PLOGI_ISSUE);
6742 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
6745 /* Send a FARP response to that node */
6746 if (fp->Rflags & FARP_REQUEST_FARPR)
6747 lpfc_issue_els_farpr(vport, did, 0);
6754 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
6755 * @vport: pointer to a host virtual N_Port data structure.
6756 * @cmdiocb: pointer to lpfc command iocb data structure.
6757 * @ndlp: pointer to a node-list data structure.
6759 * This routine processes Fibre Channel Address Resolution Protocol
6760 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
6761 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
6762 * the FARP response request.
6765 * 0 - Successfully processed FARPR IOCB (currently always return 0)
6768 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6769 struct lpfc_nodelist *ndlp)
6771 struct lpfc_dmabuf *pcmd;
6776 icmd = &cmdiocb->iocb;
6777 did = icmd->un.elsreq64.remoteID;
6778 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6779 lp = (uint32_t *) pcmd->virt;
6782 /* FARP-RSP received from DID <did> */
6783 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6784 "0600 FARP-RSP received from DID x%x\n", did);
6785 /* ACCEPT the Farp resp request */
6786 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6792 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
6793 * @vport: pointer to a host virtual N_Port data structure.
6794 * @cmdiocb: pointer to lpfc command iocb data structure.
6795 * @fan_ndlp: pointer to a node-list data structure.
6797 * This routine processes a Fabric Address Notification (FAN) IOCB
6798 * command received as an ELS unsolicited event. The FAN ELS command will
6799 * only be processed on a physical port (i.e., the @vport represents the
6800 * physical port). The fabric NodeName and PortName from the FAN IOCB are
6801 * compared against those in the phba data structure. If any of those is
6802 * different, the lpfc_initial_flogi() routine is invoked to initialize
6803 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
6804 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
6805 * is invoked to register login to the fabric.
6808 * 0 - Successfully processed fan iocb (currently always return 0).
6811 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6812 struct lpfc_nodelist *fan_ndlp)
6814 struct lpfc_hba *phba = vport->phba;
6818 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
6819 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
6821 /* FAN received; Fan does not have a reply sequence */
6822 if ((vport == phba->pport) &&
6823 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
6824 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
6825 sizeof(struct lpfc_name))) ||
6826 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
6827 sizeof(struct lpfc_name)))) {
6828 /* This port has switched fabrics. FLOGI is required */
6829 lpfc_issue_init_vfi(vport);
6831 /* FAN verified - skip FLOGI */
6832 vport->fc_myDID = vport->fc_prevDID;
6833 if (phba->sli_rev < LPFC_SLI_REV4)
6834 lpfc_issue_fabric_reglogin(vport);
6836 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6837 "3138 Need register VFI: (x%x/%x)\n",
6838 vport->fc_prevDID, vport->fc_myDID);
6839 lpfc_issue_reg_vfi(vport);
6847 * lpfc_els_timeout - Handler funciton to the els timer
6848 * @ptr: holder for the timer function associated data.
6850 * This routine is invoked by the ELS timer after timeout. It posts the ELS
6851 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
6852 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
6853 * up the worker thread. It is for the worker thread to invoke the routine
6854 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
6857 lpfc_els_timeout(unsigned long ptr)
6859 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
6860 struct lpfc_hba *phba = vport->phba;
6861 uint32_t tmo_posted;
6862 unsigned long iflag;
6864 spin_lock_irqsave(&vport->work_port_lock, iflag);
6865 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
6866 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
6867 vport->work_port_events |= WORKER_ELS_TMO;
6868 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
6870 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
6871 lpfc_worker_wake_up(phba);
6877 * lpfc_els_timeout_handler - Process an els timeout event
6878 * @vport: pointer to a virtual N_Port data structure.
6880 * This routine is the actual handler function that processes an ELS timeout
6881 * event. It walks the ELS ring to get and abort all the IOCBs (except the
6882 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
6883 * invoking the lpfc_sli_issue_abort_iotag() routine.
6886 lpfc_els_timeout_handler(struct lpfc_vport *vport)
6888 struct lpfc_hba *phba = vport->phba;
6889 struct lpfc_sli_ring *pring;
6890 struct lpfc_iocbq *tmp_iocb, *piocb;
6892 struct lpfc_dmabuf *pcmd;
6893 uint32_t els_command = 0;
6895 uint32_t remote_ID = 0xffffffff;
6896 LIST_HEAD(abort_list);
6899 timeout = (uint32_t)(phba->fc_ratov << 1);
6901 pring = &phba->sli.ring[LPFC_ELS_RING];
6902 if ((phba->pport->load_flag & FC_UNLOADING))
6904 spin_lock_irq(&phba->hbalock);
6905 if (phba->sli_rev == LPFC_SLI_REV4)
6906 spin_lock(&pring->ring_lock);
6908 if ((phba->pport->load_flag & FC_UNLOADING)) {
6909 if (phba->sli_rev == LPFC_SLI_REV4)
6910 spin_unlock(&pring->ring_lock);
6911 spin_unlock_irq(&phba->hbalock);
6915 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
6918 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
6919 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
6920 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6923 if (piocb->vport != vport)
6926 pcmd = (struct lpfc_dmabuf *) piocb->context2;
6928 els_command = *(uint32_t *) (pcmd->virt);
6930 if (els_command == ELS_CMD_FARP ||
6931 els_command == ELS_CMD_FARPR ||
6932 els_command == ELS_CMD_FDISC)
6935 if (piocb->drvrTimeout > 0) {
6936 if (piocb->drvrTimeout >= timeout)
6937 piocb->drvrTimeout -= timeout;
6939 piocb->drvrTimeout = 0;
6943 remote_ID = 0xffffffff;
6944 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
6945 remote_ID = cmd->un.elsreq64.remoteID;
6947 struct lpfc_nodelist *ndlp;
6948 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
6949 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
6950 remote_ID = ndlp->nlp_DID;
6952 list_add_tail(&piocb->dlist, &abort_list);
6954 if (phba->sli_rev == LPFC_SLI_REV4)
6955 spin_unlock(&pring->ring_lock);
6956 spin_unlock_irq(&phba->hbalock);
6958 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
6960 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
6961 "0127 ELS timeout Data: x%x x%x x%x "
6962 "x%x\n", els_command,
6963 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
6964 spin_lock_irq(&phba->hbalock);
6965 list_del_init(&piocb->dlist);
6966 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
6967 spin_unlock_irq(&phba->hbalock);
6970 if (!list_empty(&phba->sli.ring[LPFC_ELS_RING].txcmplq))
6971 if (!(phba->pport->load_flag & FC_UNLOADING))
6972 mod_timer(&vport->els_tmofunc,
6973 jiffies + msecs_to_jiffies(1000 * timeout));
6977 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
6978 * @vport: pointer to a host virtual N_Port data structure.
6980 * This routine is used to clean up all the outstanding ELS commands on a
6981 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
6982 * routine. After that, it walks the ELS transmit queue to remove all the
6983 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
6984 * the IOCBs with a non-NULL completion callback function, the callback
6985 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6986 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
6987 * callback function, the IOCB will simply be released. Finally, it walks
6988 * the ELS transmit completion queue to issue an abort IOCB to any transmit
6989 * completion queue IOCB that is associated with the @vport and is not
6990 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
6991 * part of the discovery state machine) out to HBA by invoking the
6992 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
6993 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
6994 * the IOCBs are aborted when this function returns.
6997 lpfc_els_flush_cmd(struct lpfc_vport *vport)
6999 LIST_HEAD(abort_list);
7000 struct lpfc_hba *phba = vport->phba;
7001 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7002 struct lpfc_iocbq *tmp_iocb, *piocb;
7005 lpfc_fabric_abort_vport(vport);
7007 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
7008 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
7009 * ultimately grabs the ring_lock, the driver must splice the list into
7010 * a working list and release the locks before calling the abort.
7012 spin_lock_irq(&phba->hbalock);
7013 if (phba->sli_rev == LPFC_SLI_REV4)
7014 spin_lock(&pring->ring_lock);
7016 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7017 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
7020 if (piocb->vport != vport)
7022 list_add_tail(&piocb->dlist, &abort_list);
7024 if (phba->sli_rev == LPFC_SLI_REV4)
7025 spin_unlock(&pring->ring_lock);
7026 spin_unlock_irq(&phba->hbalock);
7027 /* Abort each iocb on the aborted list and remove the dlist links. */
7028 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7029 spin_lock_irq(&phba->hbalock);
7030 list_del_init(&piocb->dlist);
7031 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7032 spin_unlock_irq(&phba->hbalock);
7034 if (!list_empty(&abort_list))
7035 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7036 "3387 abort list for txq not empty\n");
7037 INIT_LIST_HEAD(&abort_list);
7039 spin_lock_irq(&phba->hbalock);
7040 if (phba->sli_rev == LPFC_SLI_REV4)
7041 spin_lock(&pring->ring_lock);
7043 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
7046 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
7050 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7051 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
7052 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
7053 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7054 cmd->ulpCommand == CMD_ABORT_XRI_CN)
7057 if (piocb->vport != vport)
7060 list_del_init(&piocb->list);
7061 list_add_tail(&piocb->list, &abort_list);
7063 if (phba->sli_rev == LPFC_SLI_REV4)
7064 spin_unlock(&pring->ring_lock);
7065 spin_unlock_irq(&phba->hbalock);
7067 /* Cancell all the IOCBs from the completions list */
7068 lpfc_sli_cancel_iocbs(phba, &abort_list,
7069 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
7075 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7076 * @phba: pointer to lpfc hba data structure.
7078 * This routine is used to clean up all the outstanding ELS commands on a
7079 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7080 * routine. After that, it walks the ELS transmit queue to remove all the
7081 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7082 * the IOCBs with the completion callback function associated, the callback
7083 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7084 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7085 * callback function associated, the IOCB will simply be released. Finally,
7086 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7087 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7088 * management plane IOCBs that are not part of the discovery state machine)
7089 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7092 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
7094 struct lpfc_vport *vport;
7095 list_for_each_entry(vport, &phba->port_list, listentry)
7096 lpfc_els_flush_cmd(vport);
7102 * lpfc_send_els_failure_event - Posts an ELS command failure event
7103 * @phba: Pointer to hba context object.
7104 * @cmdiocbp: Pointer to command iocb which reported error.
7105 * @rspiocbp: Pointer to response iocb which reported error.
7107 * This function sends an event when there is an ELS command
7111 lpfc_send_els_failure_event(struct lpfc_hba *phba,
7112 struct lpfc_iocbq *cmdiocbp,
7113 struct lpfc_iocbq *rspiocbp)
7115 struct lpfc_vport *vport = cmdiocbp->vport;
7116 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7117 struct lpfc_lsrjt_event lsrjt_event;
7118 struct lpfc_fabric_event_header fabric_event;
7120 struct lpfc_nodelist *ndlp;
7123 ndlp = cmdiocbp->context1;
7124 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
7127 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
7128 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
7129 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
7130 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
7131 sizeof(struct lpfc_name));
7132 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
7133 sizeof(struct lpfc_name));
7134 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7135 cmdiocbp->context2)->virt);
7136 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
7137 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
7138 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
7139 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
7140 fc_host_post_vendor_event(shost,
7141 fc_get_event_number(),
7142 sizeof(lsrjt_event),
7143 (char *)&lsrjt_event,
7147 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
7148 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
7149 fabric_event.event_type = FC_REG_FABRIC_EVENT;
7150 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
7151 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
7153 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
7154 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
7155 sizeof(struct lpfc_name));
7156 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
7157 sizeof(struct lpfc_name));
7158 fc_host_post_vendor_event(shost,
7159 fc_get_event_number(),
7160 sizeof(fabric_event),
7161 (char *)&fabric_event,
7169 * lpfc_send_els_event - Posts unsolicited els event
7170 * @vport: Pointer to vport object.
7171 * @ndlp: Pointer FC node object.
7172 * @cmd: ELS command code.
7174 * This function posts an event when there is an incoming
7175 * unsolicited ELS command.
7178 lpfc_send_els_event(struct lpfc_vport *vport,
7179 struct lpfc_nodelist *ndlp,
7182 struct lpfc_els_event_header *els_data = NULL;
7183 struct lpfc_logo_event *logo_data = NULL;
7184 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7186 if (*payload == ELS_CMD_LOGO) {
7187 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
7189 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7190 "0148 Failed to allocate memory "
7191 "for LOGO event\n");
7194 els_data = &logo_data->header;
7196 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
7199 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7200 "0149 Failed to allocate memory "
7205 els_data->event_type = FC_REG_ELS_EVENT;
7208 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
7211 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
7214 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
7217 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
7218 /* Copy the WWPN in the LOGO payload */
7219 memcpy(logo_data->logo_wwpn, &payload[2],
7220 sizeof(struct lpfc_name));
7226 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
7227 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
7228 if (*payload == ELS_CMD_LOGO) {
7229 fc_host_post_vendor_event(shost,
7230 fc_get_event_number(),
7231 sizeof(struct lpfc_logo_event),
7236 fc_host_post_vendor_event(shost,
7237 fc_get_event_number(),
7238 sizeof(struct lpfc_els_event_header),
7249 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7250 * @phba: pointer to lpfc hba data structure.
7251 * @pring: pointer to a SLI ring.
7252 * @vport: pointer to a host virtual N_Port data structure.
7253 * @elsiocb: pointer to lpfc els command iocb data structure.
7255 * This routine is used for processing the IOCB associated with a unsolicited
7256 * event. It first determines whether there is an existing ndlp that matches
7257 * the DID from the unsolicited IOCB. If not, it will create a new one with
7258 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7259 * IOCB is then used to invoke the proper routine and to set up proper state
7260 * of the discovery state machine.
7263 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7264 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
7266 struct Scsi_Host *shost;
7267 struct lpfc_nodelist *ndlp;
7270 uint32_t cmd, did, newnode;
7271 uint8_t rjt_exp, rjt_err = 0;
7272 IOCB_t *icmd = &elsiocb->iocb;
7274 if (!vport || !(elsiocb->context2))
7278 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
7280 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
7281 lpfc_post_buffer(phba, pring, 1);
7283 did = icmd->un.rcvels.remoteID;
7284 if (icmd->ulpStatus) {
7285 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7286 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7287 icmd->ulpStatus, icmd->un.ulpWord[4], did);
7291 /* Check to see if link went down during discovery */
7292 if (lpfc_els_chk_latt(vport))
7295 /* Ignore traffic received during vport shutdown. */
7296 if (vport->load_flag & FC_UNLOADING)
7299 /* If NPort discovery is delayed drop incoming ELS */
7300 if ((vport->fc_flag & FC_DISC_DELAYED) &&
7301 (cmd != ELS_CMD_PLOGI))
7304 ndlp = lpfc_findnode_did(vport, did);
7306 /* Cannot find existing Fabric ndlp, so allocate a new one */
7307 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7311 lpfc_nlp_init(vport, ndlp, did);
7312 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7314 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7315 ndlp->nlp_type |= NLP_FABRIC;
7316 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7317 ndlp = lpfc_enable_node(vport, ndlp,
7318 NLP_STE_UNUSED_NODE);
7321 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7323 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7324 ndlp->nlp_type |= NLP_FABRIC;
7325 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
7326 /* This is similar to the new node path */
7327 ndlp = lpfc_nlp_get(ndlp);
7330 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7334 phba->fc_stat.elsRcvFrame++;
7337 * Do not process any unsolicited ELS commands
7338 * if the ndlp is in DEV_LOSS
7340 shost = lpfc_shost_from_vport(vport);
7341 spin_lock_irq(shost->host_lock);
7342 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
7343 spin_unlock_irq(shost->host_lock);
7346 spin_unlock_irq(shost->host_lock);
7348 elsiocb->context1 = lpfc_nlp_get(ndlp);
7349 elsiocb->vport = vport;
7351 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
7352 cmd &= ELS_CMD_MASK;
7354 /* ELS command <elsCmd> received from NPORT <did> */
7355 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7356 "0112 ELS command x%x received from NPORT x%x "
7357 "Data: x%x x%x x%x x%x\n",
7358 cmd, did, vport->port_state, vport->fc_flag,
7359 vport->fc_myDID, vport->fc_prevDID);
7361 /* reject till our FLOGI completes */
7362 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
7363 (cmd != ELS_CMD_FLOGI)) {
7364 rjt_err = LSRJT_UNABLE_TPC;
7365 rjt_exp = LSEXP_NOTHING_MORE;
7371 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7372 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7373 did, vport->port_state, ndlp->nlp_flag);
7375 phba->fc_stat.elsRcvPLOGI++;
7376 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
7377 if (phba->sli_rev == LPFC_SLI_REV4 &&
7378 (phba->pport->fc_flag & FC_PT2PT)) {
7379 vport->fc_prevDID = vport->fc_myDID;
7380 /* Our DID needs to be updated before registering
7381 * the vfi. This is done in lpfc_rcv_plogi but
7382 * that is called after the reg_vfi.
7384 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
7385 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7386 "3312 Remote port assigned DID x%x "
7387 "%x\n", vport->fc_myDID,
7391 lpfc_send_els_event(vport, ndlp, payload);
7393 /* If Nport discovery is delayed, reject PLOGIs */
7394 if (vport->fc_flag & FC_DISC_DELAYED) {
7395 rjt_err = LSRJT_UNABLE_TPC;
7396 rjt_exp = LSEXP_NOTHING_MORE;
7400 if (vport->port_state < LPFC_DISC_AUTH) {
7401 if (!(phba->pport->fc_flag & FC_PT2PT) ||
7402 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
7403 rjt_err = LSRJT_UNABLE_TPC;
7404 rjt_exp = LSEXP_NOTHING_MORE;
7409 spin_lock_irq(shost->host_lock);
7410 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
7411 spin_unlock_irq(shost->host_lock);
7413 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7418 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7419 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7420 did, vport->port_state, ndlp->nlp_flag);
7422 phba->fc_stat.elsRcvFLOGI++;
7423 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
7428 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7429 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7430 did, vport->port_state, ndlp->nlp_flag);
7432 phba->fc_stat.elsRcvLOGO++;
7433 lpfc_send_els_event(vport, ndlp, payload);
7434 if (vport->port_state < LPFC_DISC_AUTH) {
7435 rjt_err = LSRJT_UNABLE_TPC;
7436 rjt_exp = LSEXP_NOTHING_MORE;
7439 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
7442 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7443 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7444 did, vport->port_state, ndlp->nlp_flag);
7446 phba->fc_stat.elsRcvPRLO++;
7447 lpfc_send_els_event(vport, ndlp, payload);
7448 if (vport->port_state < LPFC_DISC_AUTH) {
7449 rjt_err = LSRJT_UNABLE_TPC;
7450 rjt_exp = LSEXP_NOTHING_MORE;
7453 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
7456 phba->fc_stat.elsRcvLCB++;
7457 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
7460 phba->fc_stat.elsRcvRDP++;
7461 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
7464 phba->fc_stat.elsRcvRSCN++;
7465 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
7470 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7471 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7472 did, vport->port_state, ndlp->nlp_flag);
7474 lpfc_send_els_event(vport, ndlp, payload);
7475 phba->fc_stat.elsRcvADISC++;
7476 if (vport->port_state < LPFC_DISC_AUTH) {
7477 rjt_err = LSRJT_UNABLE_TPC;
7478 rjt_exp = LSEXP_NOTHING_MORE;
7481 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7485 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7486 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7487 did, vport->port_state, ndlp->nlp_flag);
7489 phba->fc_stat.elsRcvPDISC++;
7490 if (vport->port_state < LPFC_DISC_AUTH) {
7491 rjt_err = LSRJT_UNABLE_TPC;
7492 rjt_exp = LSEXP_NOTHING_MORE;
7495 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7499 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7500 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7501 did, vport->port_state, ndlp->nlp_flag);
7503 phba->fc_stat.elsRcvFARPR++;
7504 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
7507 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7508 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7509 did, vport->port_state, ndlp->nlp_flag);
7511 phba->fc_stat.elsRcvFARP++;
7512 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
7515 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7516 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7517 did, vport->port_state, ndlp->nlp_flag);
7519 phba->fc_stat.elsRcvFAN++;
7520 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
7523 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7524 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7525 did, vport->port_state, ndlp->nlp_flag);
7527 phba->fc_stat.elsRcvPRLI++;
7528 if (vport->port_state < LPFC_DISC_AUTH) {
7529 rjt_err = LSRJT_UNABLE_TPC;
7530 rjt_exp = LSEXP_NOTHING_MORE;
7533 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
7536 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7537 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7538 did, vport->port_state, ndlp->nlp_flag);
7540 phba->fc_stat.elsRcvLIRR++;
7541 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
7546 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7547 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7548 did, vport->port_state, ndlp->nlp_flag);
7550 phba->fc_stat.elsRcvRLS++;
7551 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
7556 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7557 "RCV RPS: did:x%x/ste:x%x flg:x%x",
7558 did, vport->port_state, ndlp->nlp_flag);
7560 phba->fc_stat.elsRcvRPS++;
7561 lpfc_els_rcv_rps(vport, elsiocb, ndlp);
7566 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7567 "RCV RPL: did:x%x/ste:x%x flg:x%x",
7568 did, vport->port_state, ndlp->nlp_flag);
7570 phba->fc_stat.elsRcvRPL++;
7571 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
7576 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7577 "RCV RNID: did:x%x/ste:x%x flg:x%x",
7578 did, vport->port_state, ndlp->nlp_flag);
7580 phba->fc_stat.elsRcvRNID++;
7581 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
7586 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7587 "RCV RTV: did:x%x/ste:x%x flg:x%x",
7588 did, vport->port_state, ndlp->nlp_flag);
7589 phba->fc_stat.elsRcvRTV++;
7590 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
7595 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7596 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
7597 did, vport->port_state, ndlp->nlp_flag);
7599 phba->fc_stat.elsRcvRRQ++;
7600 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
7605 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7606 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
7607 did, vport->port_state, ndlp->nlp_flag);
7609 phba->fc_stat.elsRcvECHO++;
7610 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
7615 /* receive this due to exchange closed */
7616 rjt_err = LSRJT_UNABLE_TPC;
7617 rjt_exp = LSEXP_INVALID_OX_RX;
7620 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7621 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
7622 cmd, did, vport->port_state);
7624 /* Unsupported ELS command, reject */
7625 rjt_err = LSRJT_CMD_UNSUPPORTED;
7626 rjt_exp = LSEXP_NOTHING_MORE;
7628 /* Unknown ELS command <elsCmd> received from NPORT <did> */
7629 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7630 "0115 Unknown ELS command x%x "
7631 "received from NPORT x%x\n", cmd, did);
7638 /* check if need to LS_RJT received ELS cmd */
7640 memset(&stat, 0, sizeof(stat));
7641 stat.un.b.lsRjtRsnCode = rjt_err;
7642 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
7643 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
7647 lpfc_nlp_put(elsiocb->context1);
7648 elsiocb->context1 = NULL;
7652 if (vport && !(vport->load_flag & FC_UNLOADING))
7653 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7654 "0111 Dropping received ELS cmd "
7655 "Data: x%x x%x x%x\n",
7656 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
7657 phba->fc_stat.elsRcvDrop++;
7661 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7662 * @phba: pointer to lpfc hba data structure.
7663 * @pring: pointer to a SLI ring.
7664 * @elsiocb: pointer to lpfc els iocb data structure.
7666 * This routine is used to process an unsolicited event received from a SLI
7667 * (Service Level Interface) ring. The actual processing of the data buffer
7668 * associated with the unsolicited event is done by invoking the routine
7669 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7670 * SLI ring on which the unsolicited event was received.
7673 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7674 struct lpfc_iocbq *elsiocb)
7676 struct lpfc_vport *vport = phba->pport;
7677 IOCB_t *icmd = &elsiocb->iocb;
7679 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
7680 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
7682 elsiocb->context1 = NULL;
7683 elsiocb->context2 = NULL;
7684 elsiocb->context3 = NULL;
7686 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
7687 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
7688 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
7689 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
7690 IOERR_RCV_BUFFER_WAITING) {
7691 phba->fc_stat.NoRcvBuf++;
7692 /* Not enough posted buffers; Try posting more buffers */
7693 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
7694 lpfc_post_buffer(phba, pring, 0);
7698 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
7699 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
7700 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
7701 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
7702 vport = phba->pport;
7704 vport = lpfc_find_vport_by_vpid(phba,
7705 icmd->unsli3.rcvsli3.vpi);
7708 /* If there are no BDEs associated
7709 * with this IOCB, there is nothing to do.
7711 if (icmd->ulpBdeCount == 0)
7714 /* type of ELS cmd is first 32bit word
7717 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
7718 elsiocb->context2 = bdeBuf1;
7720 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
7721 icmd->un.cont64[0].addrLow);
7722 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
7726 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7728 * The different unsolicited event handlers would tell us
7729 * if they are done with "mp" by setting context2 to NULL.
7731 if (elsiocb->context2) {
7732 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
7733 elsiocb->context2 = NULL;
7736 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7737 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
7738 icmd->ulpBdeCount == 2) {
7739 elsiocb->context2 = bdeBuf2;
7740 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7741 /* free mp if we are done with it */
7742 if (elsiocb->context2) {
7743 lpfc_in_buf_free(phba, elsiocb->context2);
7744 elsiocb->context2 = NULL;
7750 lpfc_start_fdmi(struct lpfc_vport *vport)
7752 struct lpfc_hba *phba = vport->phba;
7753 struct lpfc_nodelist *ndlp;
7755 /* If this is the first time, allocate an ndlp and initialize
7756 * it. Otherwise, make sure the node is enabled and then do the
7759 ndlp = lpfc_findnode_did(vport, FDMI_DID);
7761 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7763 lpfc_nlp_init(vport, ndlp, FDMI_DID);
7764 ndlp->nlp_type |= NLP_FABRIC;
7769 if (!NLP_CHK_NODE_ACT(ndlp))
7770 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
7773 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
7774 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
7779 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
7780 * @phba: pointer to lpfc hba data structure.
7781 * @vport: pointer to a virtual N_Port data structure.
7783 * This routine issues a Port Login (PLOGI) to the Name Server with
7784 * State Change Request (SCR) for a @vport. This routine will create an
7785 * ndlp for the Name Server associated to the @vport if such node does
7786 * not already exist. The PLOGI to Name Server is issued by invoking the
7787 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
7788 * (FDMI) is configured to the @vport, a FDMI node will be created and
7789 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
7792 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
7794 struct lpfc_nodelist *ndlp;
7795 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7798 * If lpfc_delay_discovery parameter is set and the clean address
7799 * bit is cleared and fc fabric parameters chenged, delay FC NPort
7802 spin_lock_irq(shost->host_lock);
7803 if (vport->fc_flag & FC_DISC_DELAYED) {
7804 spin_unlock_irq(shost->host_lock);
7805 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
7806 "3334 Delay fc port discovery for %d seconds\n",
7808 mod_timer(&vport->delayed_disc_tmo,
7809 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
7812 spin_unlock_irq(shost->host_lock);
7814 ndlp = lpfc_findnode_did(vport, NameServer_DID);
7816 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7818 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7819 lpfc_disc_start(vport);
7822 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7823 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7824 "0251 NameServer login: no memory\n");
7827 lpfc_nlp_init(vport, ndlp, NameServer_DID);
7828 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7829 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
7831 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7832 lpfc_disc_start(vport);
7835 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7836 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7837 "0348 NameServer login: node freed\n");
7841 ndlp->nlp_type |= NLP_FABRIC;
7843 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
7845 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
7846 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7847 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7848 "0252 Cannot issue NameServer login\n");
7852 if ((phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) &&
7853 (vport->load_flag & FC_ALLOW_FDMI))
7854 lpfc_start_fdmi(vport);
7858 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
7859 * @phba: pointer to lpfc hba data structure.
7860 * @pmb: pointer to the driver internal queue element for mailbox command.
7862 * This routine is the completion callback function to register new vport
7863 * mailbox command. If the new vport mailbox command completes successfully,
7864 * the fabric registration login shall be performed on physical port (the
7865 * new vport created is actually a physical port, with VPI 0) or the port
7866 * login to Name Server for State Change Request (SCR) will be performed
7867 * on virtual port (real virtual port, with VPI greater than 0).
7870 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7872 struct lpfc_vport *vport = pmb->vport;
7873 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7874 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
7875 MAILBOX_t *mb = &pmb->u.mb;
7878 spin_lock_irq(shost->host_lock);
7879 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
7880 spin_unlock_irq(shost->host_lock);
7882 if (mb->mbxStatus) {
7883 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
7884 "0915 Register VPI failed : Status: x%x"
7885 " upd bit: x%x \n", mb->mbxStatus,
7886 mb->un.varRegVpi.upd);
7887 if (phba->sli_rev == LPFC_SLI_REV4 &&
7888 mb->un.varRegVpi.upd)
7889 goto mbox_err_exit ;
7891 switch (mb->mbxStatus) {
7892 case 0x11: /* unsupported feature */
7893 case 0x9603: /* max_vpi exceeded */
7894 case 0x9602: /* Link event since CLEAR_LA */
7895 /* giving up on vport registration */
7896 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7897 spin_lock_irq(shost->host_lock);
7898 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
7899 spin_unlock_irq(shost->host_lock);
7900 lpfc_can_disctmo(vport);
7902 /* If reg_vpi fail with invalid VPI status, re-init VPI */
7904 spin_lock_irq(shost->host_lock);
7905 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7906 spin_unlock_irq(shost->host_lock);
7907 lpfc_init_vpi(phba, pmb, vport->vpi);
7909 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
7910 rc = lpfc_sli_issue_mbox(phba, pmb,
7912 if (rc == MBX_NOT_FINISHED) {
7913 lpfc_printf_vlog(vport,
7915 "2732 Failed to issue INIT_VPI"
7916 " mailbox command\n");
7923 /* Try to recover from this error */
7924 if (phba->sli_rev == LPFC_SLI_REV4)
7925 lpfc_sli4_unreg_all_rpis(vport);
7926 lpfc_mbx_unreg_vpi(vport);
7927 spin_lock_irq(shost->host_lock);
7928 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7929 spin_unlock_irq(shost->host_lock);
7930 if (vport->port_type == LPFC_PHYSICAL_PORT
7931 && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
7932 lpfc_issue_init_vfi(vport);
7934 lpfc_initial_fdisc(vport);
7938 spin_lock_irq(shost->host_lock);
7939 vport->vpi_state |= LPFC_VPI_REGISTERED;
7940 spin_unlock_irq(shost->host_lock);
7941 if (vport == phba->pport) {
7942 if (phba->sli_rev < LPFC_SLI_REV4)
7943 lpfc_issue_fabric_reglogin(vport);
7946 * If the physical port is instantiated using
7947 * FDISC, do not start vport discovery.
7949 if (vport->port_state != LPFC_FDISC)
7950 lpfc_start_fdiscs(phba);
7951 lpfc_do_scr_ns_plogi(phba, vport);
7954 lpfc_do_scr_ns_plogi(phba, vport);
7957 /* Now, we decrement the ndlp reference count held for this
7962 mempool_free(pmb, phba->mbox_mem_pool);
7967 * lpfc_register_new_vport - Register a new vport with a HBA
7968 * @phba: pointer to lpfc hba data structure.
7969 * @vport: pointer to a host virtual N_Port data structure.
7970 * @ndlp: pointer to a node-list data structure.
7972 * This routine registers the @vport as a new virtual port with a HBA.
7973 * It is done through a registering vpi mailbox command.
7976 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
7977 struct lpfc_nodelist *ndlp)
7979 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7982 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7984 lpfc_reg_vpi(vport, mbox);
7985 mbox->vport = vport;
7986 mbox->context2 = lpfc_nlp_get(ndlp);
7987 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
7988 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
7989 == MBX_NOT_FINISHED) {
7990 /* mailbox command not success, decrement ndlp
7991 * reference count for this command
7994 mempool_free(mbox, phba->mbox_mem_pool);
7996 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
7997 "0253 Register VPI: Can't send mbox\n");
8001 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8002 "0254 Register VPI: no memory\n");
8008 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8009 spin_lock_irq(shost->host_lock);
8010 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8011 spin_unlock_irq(shost->host_lock);
8016 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
8017 * @phba: pointer to lpfc hba data structure.
8019 * This routine cancels the retry delay timers to all the vports.
8022 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
8024 struct lpfc_vport **vports;
8025 struct lpfc_nodelist *ndlp;
8026 uint32_t link_state;
8029 /* Treat this failure as linkdown for all vports */
8030 link_state = phba->link_state;
8031 lpfc_linkdown(phba);
8032 phba->link_state = link_state;
8034 vports = lpfc_create_vport_work_array(phba);
8037 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8038 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
8040 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
8041 lpfc_els_flush_cmd(vports[i]);
8043 lpfc_destroy_vport_work_array(phba, vports);
8048 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8049 * @phba: pointer to lpfc hba data structure.
8051 * This routine abort all pending discovery commands and
8052 * start a timer to retry FLOGI for the physical port
8056 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
8058 struct lpfc_nodelist *ndlp;
8059 struct Scsi_Host *shost;
8061 /* Cancel the all vports retry delay retry timers */
8062 lpfc_cancel_all_vport_retry_delay_timer(phba);
8064 /* If fabric require FLOGI, then re-instantiate physical login */
8065 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
8069 shost = lpfc_shost_from_vport(phba->pport);
8070 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
8071 spin_lock_irq(shost->host_lock);
8072 ndlp->nlp_flag |= NLP_DELAY_TMO;
8073 spin_unlock_irq(shost->host_lock);
8074 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
8075 phba->pport->port_state = LPFC_FLOGI;
8080 * lpfc_fabric_login_reqd - Check if FLOGI required.
8081 * @phba: pointer to lpfc hba data structure.
8082 * @cmdiocb: pointer to FDISC command iocb.
8083 * @rspiocb: pointer to FDISC response iocb.
8085 * This routine checks if a FLOGI is reguired for FDISC
8089 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
8090 struct lpfc_iocbq *cmdiocb,
8091 struct lpfc_iocbq *rspiocb)
8094 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
8095 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
8102 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8103 * @phba: pointer to lpfc hba data structure.
8104 * @cmdiocb: pointer to lpfc command iocb data structure.
8105 * @rspiocb: pointer to lpfc response iocb data structure.
8107 * This routine is the completion callback function to a Fabric Discover
8108 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8109 * single threaded, each FDISC completion callback function will reset
8110 * the discovery timer for all vports such that the timers will not get
8111 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8112 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8113 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8114 * assigned to the vport has been changed with the completion of the FDISC
8115 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8116 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8117 * routine is invoked to register new vport with the HBA. Otherwise, the
8118 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8119 * Server for State Change Request (SCR).
8122 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8123 struct lpfc_iocbq *rspiocb)
8125 struct lpfc_vport *vport = cmdiocb->vport;
8126 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8127 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
8128 struct lpfc_nodelist *np;
8129 struct lpfc_nodelist *next_np;
8130 IOCB_t *irsp = &rspiocb->iocb;
8131 struct lpfc_iocbq *piocb;
8132 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
8133 struct serv_parm *sp;
8134 uint8_t fabric_param_changed;
8136 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8137 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8138 irsp->ulpStatus, irsp->un.ulpWord[4],
8140 /* Since all FDISCs are being single threaded, we
8141 * must reset the discovery timer for ALL vports
8142 * waiting to send FDISC when one completes.
8144 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
8145 lpfc_set_disctmo(piocb->vport);
8148 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8149 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8150 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
8152 if (irsp->ulpStatus) {
8154 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
8155 lpfc_retry_pport_discovery(phba);
8159 /* Check for retry */
8160 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
8163 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8164 "0126 FDISC failed. (x%x/x%x)\n",
8165 irsp->ulpStatus, irsp->un.ulpWord[4]);
8168 spin_lock_irq(shost->host_lock);
8169 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
8170 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
8171 vport->fc_flag |= FC_FABRIC;
8172 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
8173 vport->fc_flag |= FC_PUBLIC_LOOP;
8174 spin_unlock_irq(shost->host_lock);
8176 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
8177 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
8178 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
8181 sp = prsp->virt + sizeof(uint32_t);
8182 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
8183 memcpy(&vport->fabric_portname, &sp->portName,
8184 sizeof(struct lpfc_name));
8185 memcpy(&vport->fabric_nodename, &sp->nodeName,
8186 sizeof(struct lpfc_name));
8187 if (fabric_param_changed &&
8188 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8189 /* If our NportID changed, we need to ensure all
8190 * remaining NPORTs get unreg_login'ed so we can
8193 list_for_each_entry_safe(np, next_np,
8194 &vport->fc_nodes, nlp_listp) {
8195 if (!NLP_CHK_NODE_ACT(ndlp) ||
8196 (np->nlp_state != NLP_STE_NPR_NODE) ||
8197 !(np->nlp_flag & NLP_NPR_ADISC))
8199 spin_lock_irq(shost->host_lock);
8200 np->nlp_flag &= ~NLP_NPR_ADISC;
8201 spin_unlock_irq(shost->host_lock);
8202 lpfc_unreg_rpi(vport, np);
8204 lpfc_cleanup_pending_mbox(vport);
8206 if (phba->sli_rev == LPFC_SLI_REV4)
8207 lpfc_sli4_unreg_all_rpis(vport);
8209 lpfc_mbx_unreg_vpi(vport);
8210 spin_lock_irq(shost->host_lock);
8211 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8212 if (phba->sli_rev == LPFC_SLI_REV4)
8213 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
8215 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
8216 spin_unlock_irq(shost->host_lock);
8217 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
8218 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8220 * Driver needs to re-reg VPI in order for f/w
8221 * to update the MAC address.
8223 lpfc_register_new_vport(phba, vport, ndlp);
8227 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
8228 lpfc_issue_init_vpi(vport);
8229 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
8230 lpfc_register_new_vport(phba, vport, ndlp);
8232 lpfc_do_scr_ns_plogi(phba, vport);
8235 if (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)
8236 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8237 /* Cancel discovery timer */
8238 lpfc_can_disctmo(vport);
8241 lpfc_els_free_iocb(phba, cmdiocb);
8245 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8246 * @vport: pointer to a virtual N_Port data structure.
8247 * @ndlp: pointer to a node-list data structure.
8248 * @retry: number of retries to the command IOCB.
8250 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8251 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8252 * routine to issue the IOCB, which makes sure only one outstanding fabric
8253 * IOCB will be sent off HBA at any given time.
8255 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8256 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8257 * will be stored into the context1 field of the IOCB for the completion
8258 * callback function to the FDISC ELS command.
8261 * 0 - Successfully issued fdisc iocb command
8262 * 1 - Failed to issue fdisc iocb command
8265 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
8268 struct lpfc_hba *phba = vport->phba;
8270 struct lpfc_iocbq *elsiocb;
8271 struct serv_parm *sp;
8274 int did = ndlp->nlp_DID;
8277 vport->port_state = LPFC_FDISC;
8278 vport->fc_myDID = 0;
8279 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
8280 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
8283 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8284 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8285 "0255 Issue FDISC: no IOCB\n");
8289 icmd = &elsiocb->iocb;
8290 icmd->un.elsreq64.myID = 0;
8291 icmd->un.elsreq64.fl = 1;
8294 * SLI3 ports require a different context type value than SLI4.
8295 * Catch SLI3 ports here and override the prep.
8297 if (phba->sli_rev == LPFC_SLI_REV3) {
8302 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8303 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
8304 pcmd += sizeof(uint32_t); /* CSP Word 1 */
8305 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
8306 sp = (struct serv_parm *) pcmd;
8307 /* Setup CSPs accordingly for Fabric */
8308 sp->cmn.e_d_tov = 0;
8309 sp->cmn.w2.r_a_tov = 0;
8310 sp->cmn.virtual_fabric_support = 0;
8311 sp->cls1.classValid = 0;
8312 sp->cls2.seqDelivery = 1;
8313 sp->cls3.seqDelivery = 1;
8315 pcmd += sizeof(uint32_t); /* CSP Word 2 */
8316 pcmd += sizeof(uint32_t); /* CSP Word 3 */
8317 pcmd += sizeof(uint32_t); /* CSP Word 4 */
8318 pcmd += sizeof(uint32_t); /* Port Name */
8319 memcpy(pcmd, &vport->fc_portname, 8);
8320 pcmd += sizeof(uint32_t); /* Node Name */
8321 pcmd += sizeof(uint32_t); /* Node Name */
8322 memcpy(pcmd, &vport->fc_nodename, 8);
8324 lpfc_set_disctmo(vport);
8326 phba->fc_stat.elsXmitFDISC++;
8327 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
8329 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8330 "Issue FDISC: did:x%x",
8333 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
8334 if (rc == IOCB_ERROR) {
8335 lpfc_els_free_iocb(phba, elsiocb);
8336 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8337 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8338 "0256 Issue FDISC: Cannot send IOCB\n");
8341 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
8346 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8347 * @phba: pointer to lpfc hba data structure.
8348 * @cmdiocb: pointer to lpfc command iocb data structure.
8349 * @rspiocb: pointer to lpfc response iocb data structure.
8351 * This routine is the completion callback function to the issuing of a LOGO
8352 * ELS command off a vport. It frees the command IOCB and then decrement the
8353 * reference count held on ndlp for this completion function, indicating that
8354 * the reference to the ndlp is no long needed. Note that the
8355 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8356 * callback function and an additional explicit ndlp reference decrementation
8357 * will trigger the actual release of the ndlp.
8360 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8361 struct lpfc_iocbq *rspiocb)
8363 struct lpfc_vport *vport = cmdiocb->vport;
8365 struct lpfc_nodelist *ndlp;
8366 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8368 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
8369 irsp = &rspiocb->iocb;
8370 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8371 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8372 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
8374 lpfc_els_free_iocb(phba, cmdiocb);
8375 vport->unreg_vpi_cmpl = VPORT_ERROR;
8377 /* Trigger the release of the ndlp after logo */
8380 /* NPIV LOGO completes to NPort <nlp_DID> */
8381 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8382 "2928 NPIV LOGO completes to NPort x%x "
8383 "Data: x%x x%x x%x x%x\n",
8384 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
8385 irsp->ulpTimeout, vport->num_disc_nodes);
8387 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
8388 spin_lock_irq(shost->host_lock);
8389 vport->fc_flag &= ~FC_NDISC_ACTIVE;
8390 vport->fc_flag &= ~FC_FABRIC;
8391 spin_unlock_irq(shost->host_lock);
8392 lpfc_can_disctmo(vport);
8397 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8398 * @vport: pointer to a virtual N_Port data structure.
8399 * @ndlp: pointer to a node-list data structure.
8401 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8403 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8404 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8405 * will be stored into the context1 field of the IOCB for the completion
8406 * callback function to the LOGO ELS command.
8409 * 0 - Successfully issued logo off the @vport
8410 * 1 - Failed to issue logo off the @vport
8413 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
8415 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8416 struct lpfc_hba *phba = vport->phba;
8417 struct lpfc_iocbq *elsiocb;
8421 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
8422 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
8427 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8428 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
8429 pcmd += sizeof(uint32_t);
8431 /* Fill in LOGO payload */
8432 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
8433 pcmd += sizeof(uint32_t);
8434 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
8436 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8437 "Issue LOGO npiv did:x%x flg:x%x",
8438 ndlp->nlp_DID, ndlp->nlp_flag, 0);
8440 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
8441 spin_lock_irq(shost->host_lock);
8442 ndlp->nlp_flag |= NLP_LOGO_SND;
8443 spin_unlock_irq(shost->host_lock);
8444 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
8446 spin_lock_irq(shost->host_lock);
8447 ndlp->nlp_flag &= ~NLP_LOGO_SND;
8448 spin_unlock_irq(shost->host_lock);
8449 lpfc_els_free_iocb(phba, elsiocb);
8456 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8457 * @ptr: holder for the timer function associated data.
8459 * This routine is invoked by the fabric iocb block timer after
8460 * timeout. It posts the fabric iocb block timeout event by setting the
8461 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8462 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8463 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8464 * posted event WORKER_FABRIC_BLOCK_TMO.
8467 lpfc_fabric_block_timeout(unsigned long ptr)
8469 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
8470 unsigned long iflags;
8471 uint32_t tmo_posted;
8473 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8474 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
8476 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
8477 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8480 lpfc_worker_wake_up(phba);
8485 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8486 * @phba: pointer to lpfc hba data structure.
8488 * This routine issues one fabric iocb from the driver internal list to
8489 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8490 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8491 * remove one pending fabric iocb from the driver internal list and invokes
8492 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8495 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
8497 struct lpfc_iocbq *iocb;
8498 unsigned long iflags;
8504 spin_lock_irqsave(&phba->hbalock, iflags);
8505 /* Post any pending iocb to the SLI layer */
8506 if (atomic_read(&phba->fabric_iocb_count) == 0) {
8507 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
8510 /* Increment fabric iocb count to hold the position */
8511 atomic_inc(&phba->fabric_iocb_count);
8513 spin_unlock_irqrestore(&phba->hbalock, iflags);
8515 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8516 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8517 iocb->iocb_flag |= LPFC_IO_FABRIC;
8519 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8520 "Fabric sched1: ste:x%x",
8521 iocb->vport->port_state, 0, 0);
8523 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8525 if (ret == IOCB_ERROR) {
8526 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8527 iocb->fabric_iocb_cmpl = NULL;
8528 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8530 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
8531 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
8532 iocb->iocb_cmpl(phba, iocb, iocb);
8534 atomic_dec(&phba->fabric_iocb_count);
8543 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
8544 * @phba: pointer to lpfc hba data structure.
8546 * This routine unblocks the issuing fabric iocb command. The function
8547 * will clear the fabric iocb block bit and then invoke the routine
8548 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
8549 * from the driver internal fabric iocb list.
8552 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
8554 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8556 lpfc_resume_fabric_iocbs(phba);
8561 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
8562 * @phba: pointer to lpfc hba data structure.
8564 * This routine blocks the issuing fabric iocb for a specified amount of
8565 * time (currently 100 ms). This is done by set the fabric iocb block bit
8566 * and set up a timeout timer for 100ms. When the block bit is set, no more
8567 * fabric iocb will be issued out of the HBA.
8570 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
8574 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8575 /* Start a timer to unblock fabric iocbs after 100ms */
8577 mod_timer(&phba->fabric_block_timer,
8578 jiffies + msecs_to_jiffies(100));
8584 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
8585 * @phba: pointer to lpfc hba data structure.
8586 * @cmdiocb: pointer to lpfc command iocb data structure.
8587 * @rspiocb: pointer to lpfc response iocb data structure.
8589 * This routine is the callback function that is put to the fabric iocb's
8590 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
8591 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
8592 * function first restores and invokes the original iocb's callback function
8593 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
8594 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
8597 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8598 struct lpfc_iocbq *rspiocb)
8602 if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC)
8605 switch (rspiocb->iocb.ulpStatus) {
8606 case IOSTAT_NPORT_RJT:
8607 case IOSTAT_FABRIC_RJT:
8608 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
8609 lpfc_block_fabric_iocbs(phba);
8613 case IOSTAT_NPORT_BSY:
8614 case IOSTAT_FABRIC_BSY:
8615 lpfc_block_fabric_iocbs(phba);
8619 stat.un.lsRjtError =
8620 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
8621 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
8622 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
8623 lpfc_block_fabric_iocbs(phba);
8627 if (atomic_read(&phba->fabric_iocb_count) == 0)
8630 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
8631 cmdiocb->fabric_iocb_cmpl = NULL;
8632 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
8633 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
8635 atomic_dec(&phba->fabric_iocb_count);
8636 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
8637 /* Post any pending iocbs to HBA */
8638 lpfc_resume_fabric_iocbs(phba);
8643 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
8644 * @phba: pointer to lpfc hba data structure.
8645 * @iocb: pointer to lpfc command iocb data structure.
8647 * This routine is used as the top-level API for issuing a fabric iocb command
8648 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
8649 * function makes sure that only one fabric bound iocb will be outstanding at
8650 * any given time. As such, this function will first check to see whether there
8651 * is already an outstanding fabric iocb on the wire. If so, it will put the
8652 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8653 * issued later. Otherwise, it will issue the iocb on the wire and update the
8654 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8656 * Note, this implementation has a potential sending out fabric IOCBs out of
8657 * order. The problem is caused by the construction of the "ready" boolen does
8658 * not include the condition that the internal fabric IOCB list is empty. As
8659 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8660 * ahead of the fabric IOCBs in the internal list.
8663 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8664 * IOCB_ERROR - failed to issue fabric iocb
8667 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
8669 unsigned long iflags;
8673 if (atomic_read(&phba->fabric_iocb_count) > 1)
8676 spin_lock_irqsave(&phba->hbalock, iflags);
8677 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
8678 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8681 /* Increment fabric iocb count to hold the position */
8682 atomic_inc(&phba->fabric_iocb_count);
8683 spin_unlock_irqrestore(&phba->hbalock, iflags);
8685 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8686 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8687 iocb->iocb_flag |= LPFC_IO_FABRIC;
8689 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8690 "Fabric sched2: ste:x%x",
8691 iocb->vport->port_state, 0, 0);
8693 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8695 if (ret == IOCB_ERROR) {
8696 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8697 iocb->fabric_iocb_cmpl = NULL;
8698 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8699 atomic_dec(&phba->fabric_iocb_count);
8702 spin_lock_irqsave(&phba->hbalock, iflags);
8703 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
8704 spin_unlock_irqrestore(&phba->hbalock, iflags);
8711 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8712 * @vport: pointer to a virtual N_Port data structure.
8714 * This routine aborts all the IOCBs associated with a @vport from the
8715 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8716 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8717 * list, removes each IOCB associated with the @vport off the list, set the
8718 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8719 * associated with the IOCB.
8721 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
8723 LIST_HEAD(completions);
8724 struct lpfc_hba *phba = vport->phba;
8725 struct lpfc_iocbq *tmp_iocb, *piocb;
8727 spin_lock_irq(&phba->hbalock);
8728 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
8731 if (piocb->vport != vport)
8734 list_move_tail(&piocb->list, &completions);
8736 spin_unlock_irq(&phba->hbalock);
8738 /* Cancel all the IOCBs from the completions list */
8739 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8744 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
8745 * @ndlp: pointer to a node-list data structure.
8747 * This routine aborts all the IOCBs associated with an @ndlp from the
8748 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8749 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8750 * list, removes each IOCB associated with the @ndlp off the list, set the
8751 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8752 * associated with the IOCB.
8754 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
8756 LIST_HEAD(completions);
8757 struct lpfc_hba *phba = ndlp->phba;
8758 struct lpfc_iocbq *tmp_iocb, *piocb;
8759 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8761 spin_lock_irq(&phba->hbalock);
8762 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
8764 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
8766 list_move_tail(&piocb->list, &completions);
8769 spin_unlock_irq(&phba->hbalock);
8771 /* Cancel all the IOCBs from the completions list */
8772 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8777 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
8778 * @phba: pointer to lpfc hba data structure.
8780 * This routine aborts all the IOCBs currently on the driver internal
8781 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
8782 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
8783 * list, removes IOCBs off the list, set the status feild to
8784 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
8787 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
8789 LIST_HEAD(completions);
8791 spin_lock_irq(&phba->hbalock);
8792 list_splice_init(&phba->fabric_iocb_list, &completions);
8793 spin_unlock_irq(&phba->hbalock);
8795 /* Cancel all the IOCBs from the completions list */
8796 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8801 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
8802 * @vport: pointer to lpfc vport data structure.
8804 * This routine is invoked by the vport cleanup for deletions and the cleanup
8805 * for an ndlp on removal.
8808 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
8810 struct lpfc_hba *phba = vport->phba;
8811 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8812 unsigned long iflag = 0;
8814 spin_lock_irqsave(&phba->hbalock, iflag);
8815 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
8816 list_for_each_entry_safe(sglq_entry, sglq_next,
8817 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
8818 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
8819 sglq_entry->ndlp = NULL;
8821 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
8822 spin_unlock_irqrestore(&phba->hbalock, iflag);
8827 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
8828 * @phba: pointer to lpfc hba data structure.
8829 * @axri: pointer to the els xri abort wcqe structure.
8831 * This routine is invoked by the worker thread to process a SLI4 slow-path
8835 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
8836 struct sli4_wcqe_xri_aborted *axri)
8838 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
8839 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
8842 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8843 unsigned long iflag = 0;
8844 struct lpfc_nodelist *ndlp;
8845 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8847 spin_lock_irqsave(&phba->hbalock, iflag);
8848 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
8849 list_for_each_entry_safe(sglq_entry, sglq_next,
8850 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
8851 if (sglq_entry->sli4_xritag == xri) {
8852 list_del(&sglq_entry->list);
8853 ndlp = sglq_entry->ndlp;
8854 sglq_entry->ndlp = NULL;
8855 spin_lock(&pring->ring_lock);
8856 list_add_tail(&sglq_entry->list,
8857 &phba->sli4_hba.lpfc_sgl_list);
8858 sglq_entry->state = SGL_FREED;
8859 spin_unlock(&pring->ring_lock);
8860 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
8861 spin_unlock_irqrestore(&phba->hbalock, iflag);
8862 lpfc_set_rrq_active(phba, ndlp,
8863 sglq_entry->sli4_lxritag,
8866 /* Check if TXQ queue needs to be serviced */
8867 if (!(list_empty(&pring->txq)))
8868 lpfc_worker_wake_up(phba);
8872 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
8873 lxri = lpfc_sli4_xri_inrange(phba, xri);
8874 if (lxri == NO_XRI) {
8875 spin_unlock_irqrestore(&phba->hbalock, iflag);
8878 spin_lock(&pring->ring_lock);
8879 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
8880 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
8881 spin_unlock(&pring->ring_lock);
8882 spin_unlock_irqrestore(&phba->hbalock, iflag);
8885 sglq_entry->state = SGL_XRI_ABORTED;
8886 spin_unlock(&pring->ring_lock);
8887 spin_unlock_irqrestore(&phba->hbalock, iflag);
8891 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
8892 * @vport: pointer to virtual port object.
8893 * @ndlp: nodelist pointer for the impacted node.
8895 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
8896 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
8897 * the driver is required to send a LOGO to the remote node before it
8898 * attempts to recover its login to the remote node.
8901 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
8902 struct lpfc_nodelist *ndlp)
8904 struct Scsi_Host *shost;
8905 struct lpfc_hba *phba;
8906 unsigned long flags = 0;
8908 shost = lpfc_shost_from_vport(vport);
8910 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
8911 lpfc_printf_log(phba, KERN_INFO,
8912 LOG_SLI, "3093 No rport recovery needed. "
8913 "rport in state 0x%x\n", ndlp->nlp_state);
8916 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8917 "3094 Start rport recovery on shost id 0x%x "
8918 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8920 shost->host_no, ndlp->nlp_DID,
8921 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
8924 * The rport is not responding. Remove the FCP-2 flag to prevent
8925 * an ADISC in the follow-up recovery code.
8927 spin_lock_irqsave(shost->host_lock, flags);
8928 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
8929 spin_unlock_irqrestore(shost->host_lock, flags);
8930 lpfc_issue_els_logo(vport, ndlp, 0);
8931 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);