1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2016 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 struct lpfc_hba *phba = vport->phba;
598 uint8_t fabric_param_changed = 0;
599 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
601 if ((vport->fc_prevDID != vport->fc_myDID) ||
602 memcmp(&vport->fabric_portname, &sp->portName,
603 sizeof(struct lpfc_name)) ||
604 memcmp(&vport->fabric_nodename, &sp->nodeName,
605 sizeof(struct lpfc_name)))
606 fabric_param_changed = 1;
609 * Word 1 Bit 31 in common service parameter is overloaded.
610 * Word 1 Bit 31 in FLOGI request is multiple NPort request
611 * Word 1 Bit 31 in FLOGI response is clean address bit
613 * If fabric parameter is changed and clean address bit is
614 * cleared delay nport discovery if
615 * - vport->fc_prevDID != 0 (not initial discovery) OR
616 * - lpfc_delay_discovery module parameter is set.
618 if (fabric_param_changed && !sp->cmn.clean_address_bit &&
619 (vport->fc_prevDID || phba->cfg_delay_discovery)) {
620 spin_lock_irq(shost->host_lock);
621 vport->fc_flag |= FC_DISC_DELAYED;
622 spin_unlock_irq(shost->host_lock);
625 return fabric_param_changed;
630 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
631 * @vport: pointer to a host virtual N_Port data structure.
632 * @ndlp: pointer to a node-list data structure.
633 * @sp: pointer to service parameter data structure.
634 * @irsp: pointer to the IOCB within the lpfc response IOCB.
636 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
637 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
638 * port in a fabric topology. It properly sets up the parameters to the @ndlp
639 * from the IOCB response. It also check the newly assigned N_Port ID to the
640 * @vport against the previously assigned N_Port ID. If it is different from
641 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
642 * is invoked on all the remaining nodes with the @vport to unregister the
643 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
644 * is invoked to register login to the fabric.
647 * 0 - Success (currently, always return 0)
650 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
651 struct serv_parm *sp, IOCB_t *irsp)
653 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
654 struct lpfc_hba *phba = vport->phba;
655 struct lpfc_nodelist *np;
656 struct lpfc_nodelist *next_np;
657 uint8_t fabric_param_changed;
659 spin_lock_irq(shost->host_lock);
660 vport->fc_flag |= FC_FABRIC;
661 spin_unlock_irq(shost->host_lock);
663 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
664 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
665 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
667 phba->fc_edtovResol = sp->cmn.edtovResolution;
668 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
670 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
671 spin_lock_irq(shost->host_lock);
672 vport->fc_flag |= FC_PUBLIC_LOOP;
673 spin_unlock_irq(shost->host_lock);
676 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
677 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
678 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
679 ndlp->nlp_class_sup = 0;
680 if (sp->cls1.classValid)
681 ndlp->nlp_class_sup |= FC_COS_CLASS1;
682 if (sp->cls2.classValid)
683 ndlp->nlp_class_sup |= FC_COS_CLASS2;
684 if (sp->cls3.classValid)
685 ndlp->nlp_class_sup |= FC_COS_CLASS3;
686 if (sp->cls4.classValid)
687 ndlp->nlp_class_sup |= FC_COS_CLASS4;
688 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
689 sp->cmn.bbRcvSizeLsb;
691 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
692 if (fabric_param_changed) {
693 /* Reset FDMI attribute masks based on config parameter */
694 if (phba->cfg_enable_SmartSAN ||
695 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
696 /* Setup appropriate attribute masks */
697 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
698 if (phba->cfg_enable_SmartSAN)
699 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
701 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
703 vport->fdmi_hba_mask = 0;
704 vport->fdmi_port_mask = 0;
708 memcpy(&vport->fabric_portname, &sp->portName,
709 sizeof(struct lpfc_name));
710 memcpy(&vport->fabric_nodename, &sp->nodeName,
711 sizeof(struct lpfc_name));
712 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
714 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
715 if (sp->cmn.response_multiple_NPort) {
716 lpfc_printf_vlog(vport, KERN_WARNING,
718 "1816 FLOGI NPIV supported, "
719 "response data 0x%x\n",
720 sp->cmn.response_multiple_NPort);
721 spin_lock_irq(&phba->hbalock);
722 phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
723 spin_unlock_irq(&phba->hbalock);
725 /* Because we asked f/w for NPIV it still expects us
726 to call reg_vnpid atleast for the physcial host */
727 lpfc_printf_vlog(vport, KERN_WARNING,
729 "1817 Fabric does not support NPIV "
730 "- configuring single port mode.\n");
731 spin_lock_irq(&phba->hbalock);
732 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
733 spin_unlock_irq(&phba->hbalock);
738 * For FC we need to do some special processing because of the SLI
739 * Port's default settings of the Common Service Parameters.
741 if ((phba->sli_rev == LPFC_SLI_REV4) &&
742 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
743 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
744 if (fabric_param_changed)
745 lpfc_unregister_fcf_prep(phba);
747 /* This should just update the VFI CSPs*/
748 if (vport->fc_flag & FC_VFI_REGISTERED)
749 lpfc_issue_reg_vfi(vport);
752 if (fabric_param_changed &&
753 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
755 /* If our NportID changed, we need to ensure all
756 * remaining NPORTs get unreg_login'ed.
758 list_for_each_entry_safe(np, next_np,
759 &vport->fc_nodes, nlp_listp) {
760 if (!NLP_CHK_NODE_ACT(np))
762 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
763 !(np->nlp_flag & NLP_NPR_ADISC))
765 spin_lock_irq(shost->host_lock);
766 np->nlp_flag &= ~NLP_NPR_ADISC;
767 spin_unlock_irq(shost->host_lock);
768 lpfc_unreg_rpi(vport, np);
770 lpfc_cleanup_pending_mbox(vport);
772 if (phba->sli_rev == LPFC_SLI_REV4) {
773 lpfc_sli4_unreg_all_rpis(vport);
774 lpfc_mbx_unreg_vpi(vport);
775 spin_lock_irq(shost->host_lock);
776 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
777 spin_unlock_irq(shost->host_lock);
781 * For SLI3 and SLI4, the VPI needs to be reregistered in
782 * response to this fabric parameter change event.
784 spin_lock_irq(shost->host_lock);
785 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
786 spin_unlock_irq(shost->host_lock);
787 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
788 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
790 * Driver needs to re-reg VPI in order for f/w
791 * to update the MAC address.
793 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
794 lpfc_register_new_vport(phba, vport, ndlp);
798 if (phba->sli_rev < LPFC_SLI_REV4) {
799 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
800 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
801 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
802 lpfc_register_new_vport(phba, vport, ndlp);
804 lpfc_issue_fabric_reglogin(vport);
806 ndlp->nlp_type |= NLP_FABRIC;
807 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
808 if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
809 (vport->vpi_state & LPFC_VPI_REGISTERED)) {
810 lpfc_start_fdiscs(phba);
811 lpfc_do_scr_ns_plogi(phba, vport);
812 } else if (vport->fc_flag & FC_VFI_REGISTERED)
813 lpfc_issue_init_vpi(vport);
815 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
816 "3135 Need register VFI: (x%x/%x)\n",
817 vport->fc_prevDID, vport->fc_myDID);
818 lpfc_issue_reg_vfi(vport);
825 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
826 * @vport: pointer to a host virtual N_Port data structure.
827 * @ndlp: pointer to a node-list data structure.
828 * @sp: pointer to service parameter data structure.
830 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
831 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
832 * in a point-to-point topology. First, the @vport's N_Port Name is compared
833 * with the received N_Port Name: if the @vport's N_Port Name is greater than
834 * the received N_Port Name lexicographically, this node shall assign local
835 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
836 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
837 * this node shall just wait for the remote node to issue PLOGI and assign
845 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
846 struct serv_parm *sp)
848 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
849 struct lpfc_hba *phba = vport->phba;
853 spin_lock_irq(shost->host_lock);
854 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
855 vport->fc_flag |= FC_PT2PT;
856 spin_unlock_irq(shost->host_lock);
858 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
859 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
860 lpfc_unregister_fcf_prep(phba);
862 spin_lock_irq(shost->host_lock);
863 vport->fc_flag &= ~FC_VFI_REGISTERED;
864 spin_unlock_irq(shost->host_lock);
865 phba->fc_topology_changed = 0;
868 rc = memcmp(&vport->fc_portname, &sp->portName,
869 sizeof(vport->fc_portname));
872 /* This side will initiate the PLOGI */
873 spin_lock_irq(shost->host_lock);
874 vport->fc_flag |= FC_PT2PT_PLOGI;
875 spin_unlock_irq(shost->host_lock);
878 * N_Port ID cannot be 0, set our Id to LocalID
879 * the other side will be RemoteID.
884 vport->fc_myDID = PT2PT_LocalID;
886 /* Decrement ndlp reference count indicating that ndlp can be
887 * safely released when other references to it are done.
891 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
894 * Cannot find existing Fabric ndlp, so allocate a
897 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
900 lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID);
901 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
902 ndlp = lpfc_enable_node(vport, ndlp,
903 NLP_STE_UNUSED_NODE);
908 memcpy(&ndlp->nlp_portname, &sp->portName,
909 sizeof(struct lpfc_name));
910 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
911 sizeof(struct lpfc_name));
912 /* Set state will put ndlp onto node list if not already done */
913 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
914 spin_lock_irq(shost->host_lock);
915 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
916 spin_unlock_irq(shost->host_lock);
918 /* This side will wait for the PLOGI, decrement ndlp reference
919 * count indicating that ndlp can be released when other
920 * references to it are done.
924 /* If we are pt2pt with another NPort, force NPIV off! */
925 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
927 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
931 lpfc_config_link(phba, mbox);
933 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
935 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
936 if (rc == MBX_NOT_FINISHED) {
937 mempool_free(mbox, phba->mbox_mem_pool);
947 * lpfc_cmpl_els_flogi - Completion callback function for flogi
948 * @phba: pointer to lpfc hba data structure.
949 * @cmdiocb: pointer to lpfc command iocb data structure.
950 * @rspiocb: pointer to lpfc response iocb data structure.
952 * This routine is the top-level completion callback function for issuing
953 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
954 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
955 * retry has been made (either immediately or delayed with lpfc_els_retry()
956 * returning 1), the command IOCB will be released and function returned.
957 * If the retry attempt has been given up (possibly reach the maximum
958 * number of retries), one additional decrement of ndlp reference shall be
959 * invoked before going out after releasing the command IOCB. This will
960 * actually release the remote node (Note, lpfc_els_free_iocb() will also
961 * invoke one decrement of ndlp reference count). If no error reported in
962 * the IOCB status, the command Port ID field is used to determine whether
963 * this is a point-to-point topology or a fabric topology: if the Port ID
964 * field is assigned, it is a fabric topology; otherwise, it is a
965 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
966 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
967 * specific topology completion conditions.
970 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
971 struct lpfc_iocbq *rspiocb)
973 struct lpfc_vport *vport = cmdiocb->vport;
974 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
975 IOCB_t *irsp = &rspiocb->iocb;
976 struct lpfc_nodelist *ndlp = cmdiocb->context1;
977 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
978 struct serv_parm *sp;
982 /* Check to see if link went down during discovery */
983 if (lpfc_els_chk_latt(vport)) {
984 /* One additional decrement on node reference count to
985 * trigger the release of the node
991 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
992 "FLOGI cmpl: status:x%x/x%x state:x%x",
993 irsp->ulpStatus, irsp->un.ulpWord[4],
996 if (irsp->ulpStatus) {
998 * In case of FIP mode, perform roundrobin FCF failover
999 * due to new FCF discovery
1001 if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
1002 (phba->fcf.fcf_flag & FCF_DISCOVERY)) {
1003 if (phba->link_state < LPFC_LINK_UP)
1004 goto stop_rr_fcf_flogi;
1005 if ((phba->fcoe_cvl_eventtag_attn ==
1006 phba->fcoe_cvl_eventtag) &&
1007 (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1008 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1010 goto stop_rr_fcf_flogi;
1012 phba->fcoe_cvl_eventtag_attn =
1013 phba->fcoe_cvl_eventtag;
1014 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1015 "2611 FLOGI failed on FCF (x%x), "
1016 "status:x%x/x%x, tmo:x%x, perform "
1017 "roundrobin FCF failover\n",
1018 phba->fcf.current_rec.fcf_indx,
1019 irsp->ulpStatus, irsp->un.ulpWord[4],
1021 lpfc_sli4_set_fcf_flogi_fail(phba,
1022 phba->fcf.current_rec.fcf_indx);
1023 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
1024 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
1031 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1032 "2858 FLOGI failure Status:x%x/x%x TMO:x%x "
1034 irsp->ulpStatus, irsp->un.ulpWord[4],
1035 irsp->ulpTimeout, phba->hba_flag,
1036 phba->fcf.fcf_flag);
1038 /* Check for retry */
1039 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
1043 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1044 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1045 irsp->ulpStatus, irsp->un.ulpWord[4],
1048 /* FLOGI failed, so there is no fabric */
1049 spin_lock_irq(shost->host_lock);
1050 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1051 spin_unlock_irq(shost->host_lock);
1053 /* If private loop, then allow max outstanding els to be
1054 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1055 * alpa map would take too long otherwise.
1057 if (phba->alpa_map[0] == 0)
1058 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
1059 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1060 (!(vport->fc_flag & FC_VFI_REGISTERED) ||
1061 (vport->fc_prevDID != vport->fc_myDID) ||
1062 phba->fc_topology_changed)) {
1063 if (vport->fc_flag & FC_VFI_REGISTERED) {
1064 if (phba->fc_topology_changed) {
1065 lpfc_unregister_fcf_prep(phba);
1066 spin_lock_irq(shost->host_lock);
1067 vport->fc_flag &= ~FC_VFI_REGISTERED;
1068 spin_unlock_irq(shost->host_lock);
1069 phba->fc_topology_changed = 0;
1071 lpfc_sli4_unreg_all_rpis(vport);
1075 /* Do not register VFI if the driver aborted FLOGI */
1076 if (!lpfc_error_lost_link(irsp))
1077 lpfc_issue_reg_vfi(vport);
1083 spin_lock_irq(shost->host_lock);
1084 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
1085 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
1086 spin_unlock_irq(shost->host_lock);
1089 * The FLogI succeeded. Sync the data for the CPU before
1092 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1095 sp = prsp->virt + sizeof(uint32_t);
1097 /* FLOGI completes successfully */
1098 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1099 "0101 FLOGI completes successfully, I/O tag:x%x, "
1100 "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb->iotag,
1101 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
1102 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
1103 vport->port_state, vport->fc_flag);
1105 if (vport->port_state == LPFC_FLOGI) {
1107 * If Common Service Parameters indicate Nport
1108 * we are point to point, if Fport we are Fabric.
1111 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
1112 else if (!(phba->hba_flag & HBA_FCOE_MODE))
1113 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
1115 lpfc_printf_vlog(vport, KERN_ERR,
1117 "2831 FLOGI response with cleared Fabric "
1118 "bit fcf_index 0x%x "
1119 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1121 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1122 phba->fcf.current_rec.fcf_indx,
1123 phba->fcf.current_rec.switch_name[0],
1124 phba->fcf.current_rec.switch_name[1],
1125 phba->fcf.current_rec.switch_name[2],
1126 phba->fcf.current_rec.switch_name[3],
1127 phba->fcf.current_rec.switch_name[4],
1128 phba->fcf.current_rec.switch_name[5],
1129 phba->fcf.current_rec.switch_name[6],
1130 phba->fcf.current_rec.switch_name[7],
1131 phba->fcf.current_rec.fabric_name[0],
1132 phba->fcf.current_rec.fabric_name[1],
1133 phba->fcf.current_rec.fabric_name[2],
1134 phba->fcf.current_rec.fabric_name[3],
1135 phba->fcf.current_rec.fabric_name[4],
1136 phba->fcf.current_rec.fabric_name[5],
1137 phba->fcf.current_rec.fabric_name[6],
1138 phba->fcf.current_rec.fabric_name[7]);
1140 spin_lock_irq(&phba->hbalock);
1141 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1142 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1143 spin_unlock_irq(&phba->hbalock);
1144 phba->fcf.fcf_redisc_attempted = 0; /* reset */
1148 /* Mark the FCF discovery process done */
1149 if (phba->hba_flag & HBA_FIP_SUPPORT)
1150 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
1152 "2769 FLOGI to FCF (x%x) "
1153 "completed successfully\n",
1154 phba->fcf.current_rec.fcf_indx);
1155 spin_lock_irq(&phba->hbalock);
1156 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1157 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1158 spin_unlock_irq(&phba->hbalock);
1159 phba->fcf.fcf_redisc_attempted = 0; /* reset */
1162 } else if (vport->port_state > LPFC_FLOGI &&
1163 vport->fc_flag & FC_PT2PT) {
1165 * In a p2p topology, it is possible that discovery has
1166 * already progressed, and this completion can be ignored.
1167 * Recheck the indicated topology.
1174 spin_lock_irq(&phba->hbalock);
1175 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1176 spin_unlock_irq(&phba->hbalock);
1180 if (!lpfc_error_lost_link(irsp)) {
1181 /* FLOGI failed, so just use loop map to make discovery list */
1182 lpfc_disc_list_loopmap(vport);
1184 /* Start discovery */
1185 lpfc_disc_start(vport);
1186 } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1187 (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1188 IOERR_SLI_ABORTED) &&
1189 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1190 IOERR_SLI_DOWN))) &&
1191 (phba->link_state != LPFC_CLEAR_LA)) {
1192 /* If FLOGI failed enable link interrupt. */
1193 lpfc_issue_clear_la(phba, vport);
1196 lpfc_els_free_iocb(phba, cmdiocb);
1200 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1201 * @vport: pointer to a host virtual N_Port data structure.
1202 * @ndlp: pointer to a node-list data structure.
1203 * @retry: number of retries to the command IOCB.
1205 * This routine issues a Fabric Login (FLOGI) Request ELS command
1206 * for a @vport. The initiator service parameters are put into the payload
1207 * of the FLOGI Request IOCB and the top-level callback function pointer
1208 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1209 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1210 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1212 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1213 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1214 * will be stored into the context1 field of the IOCB for the completion
1215 * callback function to the FLOGI ELS command.
1218 * 0 - successfully issued flogi iocb for @vport
1219 * 1 - failed to issue flogi iocb for @vport
1222 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1225 struct lpfc_hba *phba = vport->phba;
1226 struct serv_parm *sp;
1228 struct lpfc_iocbq *elsiocb;
1234 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1235 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1236 ndlp->nlp_DID, ELS_CMD_FLOGI);
1241 icmd = &elsiocb->iocb;
1242 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1244 /* For FLOGI request, remainder of payload is service parameters */
1245 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
1246 pcmd += sizeof(uint32_t);
1247 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1248 sp = (struct serv_parm *) pcmd;
1250 /* Setup CSPs accordingly for Fabric */
1251 sp->cmn.e_d_tov = 0;
1252 sp->cmn.w2.r_a_tov = 0;
1253 sp->cmn.virtual_fabric_support = 0;
1254 sp->cls1.classValid = 0;
1255 if (sp->cmn.fcphLow < FC_PH3)
1256 sp->cmn.fcphLow = FC_PH3;
1257 if (sp->cmn.fcphHigh < FC_PH3)
1258 sp->cmn.fcphHigh = FC_PH3;
1260 if (phba->sli_rev == LPFC_SLI_REV4) {
1261 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1262 LPFC_SLI_INTF_IF_TYPE_0) {
1263 elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
1264 elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
1265 /* FLOGI needs to be 3 for WQE FCFI */
1266 /* Set the fcfi to the fcfi we registered with */
1267 elsiocb->iocb.ulpContext = phba->fcf.fcfi;
1269 /* Can't do SLI4 class2 without support sequence coalescing */
1270 sp->cls2.classValid = 0;
1271 sp->cls2.seqDelivery = 0;
1273 /* Historical, setting sequential-delivery bit for SLI3 */
1274 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
1275 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
1276 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1277 sp->cmn.request_multiple_Nport = 1;
1278 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1282 sp->cmn.request_multiple_Nport = 0;
1285 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
1286 icmd->un.elsreq64.myID = 0;
1287 icmd->un.elsreq64.fl = 1;
1290 tmo = phba->fc_ratov;
1291 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
1292 lpfc_set_disctmo(vport);
1293 phba->fc_ratov = tmo;
1295 phba->fc_stat.elsXmitFLOGI++;
1296 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
1298 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1299 "Issue FLOGI: opt:x%x",
1300 phba->sli3_options, 0, 0);
1302 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
1303 if (rc == IOCB_ERROR) {
1304 lpfc_els_free_iocb(phba, elsiocb);
1311 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1312 * @phba: pointer to lpfc hba data structure.
1314 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1315 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1316 * list and issues an abort IOCB commond on each outstanding IOCB that
1317 * contains a active Fabric_DID ndlp. Note that this function is to issue
1318 * the abort IOCB command on all the outstanding IOCBs, thus when this
1319 * function returns, it does not guarantee all the IOCBs are actually aborted.
1322 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1325 lpfc_els_abort_flogi(struct lpfc_hba *phba)
1327 struct lpfc_sli_ring *pring;
1328 struct lpfc_iocbq *iocb, *next_iocb;
1329 struct lpfc_nodelist *ndlp;
1332 /* Abort outstanding I/O on NPort <nlp_DID> */
1333 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1334 "0201 Abort outstanding I/O on NPort x%x\n",
1337 pring = &phba->sli.ring[LPFC_ELS_RING];
1340 * Check the txcmplq for an iocb that matches the nport the driver is
1343 spin_lock_irq(&phba->hbalock);
1344 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1346 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
1347 ndlp = (struct lpfc_nodelist *)(iocb->context1);
1348 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
1349 (ndlp->nlp_DID == Fabric_DID))
1350 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1353 spin_unlock_irq(&phba->hbalock);
1359 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1360 * @vport: pointer to a host virtual N_Port data structure.
1362 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1363 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1364 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1365 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1366 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1367 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1371 * 0 - failed to issue initial flogi for @vport
1372 * 1 - successfully issued initial flogi for @vport
1375 lpfc_initial_flogi(struct lpfc_vport *vport)
1377 struct lpfc_hba *phba = vport->phba;
1378 struct lpfc_nodelist *ndlp;
1380 vport->port_state = LPFC_FLOGI;
1381 lpfc_set_disctmo(vport);
1383 /* First look for the Fabric ndlp */
1384 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1386 /* Cannot find existing Fabric ndlp, so allocate a new one */
1387 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1390 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1391 /* Set the node type */
1392 ndlp->nlp_type |= NLP_FABRIC;
1393 /* Put ndlp onto node list */
1394 lpfc_enqueue_node(vport, ndlp);
1395 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1396 /* re-setup ndlp without removing from node list */
1397 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1402 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
1403 /* This decrement of reference count to node shall kick off
1404 * the release of the node.
1413 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1414 * @vport: pointer to a host virtual N_Port data structure.
1416 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1417 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1418 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1419 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1420 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1421 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1425 * 0 - failed to issue initial fdisc for @vport
1426 * 1 - successfully issued initial fdisc for @vport
1429 lpfc_initial_fdisc(struct lpfc_vport *vport)
1431 struct lpfc_hba *phba = vport->phba;
1432 struct lpfc_nodelist *ndlp;
1434 /* First look for the Fabric ndlp */
1435 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1437 /* Cannot find existing Fabric ndlp, so allocate a new one */
1438 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1441 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1442 /* Put ndlp onto node list */
1443 lpfc_enqueue_node(vport, ndlp);
1444 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1445 /* re-setup ndlp without removing from node list */
1446 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1451 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
1452 /* decrement node reference count to trigger the release of
1462 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1463 * @vport: pointer to a host virtual N_Port data structure.
1465 * This routine checks whether there are more remaining Port Logins
1466 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1467 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1468 * to issue ELS PLOGIs up to the configured discover threads with the
1469 * @vport (@vport->cfg_discovery_threads). The function also decrement
1470 * the @vport's num_disc_node by 1 if it is not already 0.
1473 lpfc_more_plogi(struct lpfc_vport *vport)
1475 if (vport->num_disc_nodes)
1476 vport->num_disc_nodes--;
1478 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1479 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1480 "0232 Continue discovery with %d PLOGIs to go "
1481 "Data: x%x x%x x%x\n",
1482 vport->num_disc_nodes, vport->fc_plogi_cnt,
1483 vport->fc_flag, vport->port_state);
1484 /* Check to see if there are more PLOGIs to be sent */
1485 if (vport->fc_flag & FC_NLP_MORE)
1486 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1487 lpfc_els_disc_plogi(vport);
1493 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1494 * @phba: pointer to lpfc hba data structure.
1495 * @prsp: pointer to response IOCB payload.
1496 * @ndlp: pointer to a node-list data structure.
1498 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1499 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1500 * The following cases are considered N_Port confirmed:
1501 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1502 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1503 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1504 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1505 * 1) if there is a node on vport list other than the @ndlp with the same
1506 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1507 * on that node to release the RPI associated with the node; 2) if there is
1508 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1509 * into, a new node shall be allocated (or activated). In either case, the
1510 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1511 * be released and the new_ndlp shall be put on to the vport node list and
1512 * its pointer returned as the confirmed node.
1514 * Note that before the @ndlp got "released", the keepDID from not-matching
1515 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1516 * of the @ndlp. This is because the release of @ndlp is actually to put it
1517 * into an inactive state on the vport node list and the vport node list
1518 * management algorithm does not allow two node with a same DID.
1521 * pointer to the PLOGI N_Port @ndlp
1523 static struct lpfc_nodelist *
1524 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
1525 struct lpfc_nodelist *ndlp)
1527 struct lpfc_vport *vport = ndlp->vport;
1528 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1529 struct lpfc_nodelist *new_ndlp;
1530 struct lpfc_rport_data *rdata;
1531 struct fc_rport *rport;
1532 struct serv_parm *sp;
1533 uint8_t name[sizeof(struct lpfc_name)];
1534 uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
1535 uint16_t keep_nlp_state;
1538 unsigned long *active_rrqs_xri_bitmap = NULL;
1540 /* Fabric nodes can have the same WWPN so we don't bother searching
1541 * by WWPN. Just return the ndlp that was given to us.
1543 if (ndlp->nlp_type & NLP_FABRIC)
1546 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
1547 memset(name, 0, sizeof(struct lpfc_name));
1549 /* Now we find out if the NPort we are logging into, matches the WWPN
1550 * we have for that ndlp. If not, we have some work to do.
1552 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
1554 if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp))
1556 if (phba->sli_rev == LPFC_SLI_REV4) {
1557 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1559 if (active_rrqs_xri_bitmap)
1560 memset(active_rrqs_xri_bitmap, 0,
1561 phba->cfg_rrq_xri_bitmap_sz);
1564 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1565 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1566 ndlp, ndlp->nlp_DID, new_ndlp);
1569 rc = memcmp(&ndlp->nlp_portname, name,
1570 sizeof(struct lpfc_name));
1572 if (active_rrqs_xri_bitmap)
1573 mempool_free(active_rrqs_xri_bitmap,
1574 phba->active_rrq_pool);
1577 new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1579 if (active_rrqs_xri_bitmap)
1580 mempool_free(active_rrqs_xri_bitmap,
1581 phba->active_rrq_pool);
1584 lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID);
1585 } else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
1586 rc = memcmp(&ndlp->nlp_portname, name,
1587 sizeof(struct lpfc_name));
1589 if (active_rrqs_xri_bitmap)
1590 mempool_free(active_rrqs_xri_bitmap,
1591 phba->active_rrq_pool);
1594 new_ndlp = lpfc_enable_node(vport, new_ndlp,
1595 NLP_STE_UNUSED_NODE);
1597 if (active_rrqs_xri_bitmap)
1598 mempool_free(active_rrqs_xri_bitmap,
1599 phba->active_rrq_pool);
1602 keepDID = new_ndlp->nlp_DID;
1603 if ((phba->sli_rev == LPFC_SLI_REV4) && active_rrqs_xri_bitmap)
1604 memcpy(active_rrqs_xri_bitmap,
1605 new_ndlp->active_rrqs_xri_bitmap,
1606 phba->cfg_rrq_xri_bitmap_sz);
1608 keepDID = new_ndlp->nlp_DID;
1609 if (phba->sli_rev == LPFC_SLI_REV4 &&
1610 active_rrqs_xri_bitmap)
1611 memcpy(active_rrqs_xri_bitmap,
1612 new_ndlp->active_rrqs_xri_bitmap,
1613 phba->cfg_rrq_xri_bitmap_sz);
1616 lpfc_unreg_rpi(vport, new_ndlp);
1617 new_ndlp->nlp_DID = ndlp->nlp_DID;
1618 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
1619 if (phba->sli_rev == LPFC_SLI_REV4)
1620 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1621 ndlp->active_rrqs_xri_bitmap,
1622 phba->cfg_rrq_xri_bitmap_sz);
1624 spin_lock_irq(shost->host_lock);
1625 keep_nlp_flag = new_ndlp->nlp_flag;
1626 new_ndlp->nlp_flag = ndlp->nlp_flag;
1627 ndlp->nlp_flag = keep_nlp_flag;
1628 spin_unlock_irq(shost->host_lock);
1630 /* Set nlp_states accordingly */
1631 keep_nlp_state = new_ndlp->nlp_state;
1632 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
1634 /* Move this back to NPR state */
1635 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1636 /* The new_ndlp is replacing ndlp totally, so we need
1637 * to put ndlp on UNUSED list and try to free it.
1639 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1640 "3179 PLOGI confirm NEW: %x %x\n",
1641 new_ndlp->nlp_DID, keepDID);
1643 /* Fix up the rport accordingly */
1644 rport = ndlp->rport;
1646 rdata = rport->dd_data;
1647 if (rdata->pnode == ndlp) {
1648 /* break the link before dropping the ref */
1651 rdata->pnode = lpfc_nlp_get(new_ndlp);
1652 new_ndlp->rport = rport;
1654 new_ndlp->nlp_type = ndlp->nlp_type;
1656 /* We shall actually free the ndlp with both nlp_DID and
1657 * nlp_portname fields equals 0 to avoid any ndlp on the
1658 * nodelist never to be used.
1660 if (ndlp->nlp_DID == 0) {
1661 spin_lock_irq(&phba->ndlp_lock);
1662 NLP_SET_FREE_REQ(ndlp);
1663 spin_unlock_irq(&phba->ndlp_lock);
1666 /* Two ndlps cannot have the same did on the nodelist */
1667 ndlp->nlp_DID = keepDID;
1668 if (phba->sli_rev == LPFC_SLI_REV4 &&
1669 active_rrqs_xri_bitmap)
1670 memcpy(ndlp->active_rrqs_xri_bitmap,
1671 active_rrqs_xri_bitmap,
1672 phba->cfg_rrq_xri_bitmap_sz);
1674 if (!NLP_CHK_NODE_ACT(ndlp))
1675 lpfc_drop_node(vport, ndlp);
1678 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1679 "3180 PLOGI confirm SWAP: %x %x\n",
1680 new_ndlp->nlp_DID, keepDID);
1682 lpfc_unreg_rpi(vport, ndlp);
1684 /* Two ndlps cannot have the same did */
1685 ndlp->nlp_DID = keepDID;
1686 if (phba->sli_rev == LPFC_SLI_REV4 &&
1687 active_rrqs_xri_bitmap)
1688 memcpy(ndlp->active_rrqs_xri_bitmap,
1689 active_rrqs_xri_bitmap,
1690 phba->cfg_rrq_xri_bitmap_sz);
1692 /* Since we are switching over to the new_ndlp,
1693 * reset the old ndlp state
1695 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1696 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
1697 keep_nlp_state = NLP_STE_NPR_NODE;
1698 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1700 /* Fix up the rport accordingly */
1701 rport = ndlp->rport;
1703 rdata = rport->dd_data;
1704 put_node = rdata->pnode != NULL;
1705 put_rport = ndlp->rport != NULL;
1706 rdata->pnode = NULL;
1711 put_device(&rport->dev);
1714 if (phba->sli_rev == LPFC_SLI_REV4 &&
1715 active_rrqs_xri_bitmap)
1716 mempool_free(active_rrqs_xri_bitmap,
1717 phba->active_rrq_pool);
1722 * lpfc_end_rscn - Check and handle more rscn for a vport
1723 * @vport: pointer to a host virtual N_Port data structure.
1725 * This routine checks whether more Registration State Change
1726 * Notifications (RSCNs) came in while the discovery state machine was in
1727 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1728 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1729 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1730 * handling the RSCNs.
1733 lpfc_end_rscn(struct lpfc_vport *vport)
1735 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1737 if (vport->fc_flag & FC_RSCN_MODE) {
1739 * Check to see if more RSCNs came in while we were
1740 * processing this one.
1742 if (vport->fc_rscn_id_cnt ||
1743 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1744 lpfc_els_handle_rscn(vport);
1746 spin_lock_irq(shost->host_lock);
1747 vport->fc_flag &= ~FC_RSCN_MODE;
1748 spin_unlock_irq(shost->host_lock);
1754 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1755 * @phba: pointer to lpfc hba data structure.
1756 * @cmdiocb: pointer to lpfc command iocb data structure.
1757 * @rspiocb: pointer to lpfc response iocb data structure.
1759 * This routine will call the clear rrq function to free the rrq and
1760 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1761 * exist then the clear_rrq is still called because the rrq needs to
1766 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1767 struct lpfc_iocbq *rspiocb)
1769 struct lpfc_vport *vport = cmdiocb->vport;
1771 struct lpfc_nodelist *ndlp;
1772 struct lpfc_node_rrq *rrq;
1774 /* we pass cmdiocb to state machine which needs rspiocb as well */
1775 rrq = cmdiocb->context_un.rrq;
1776 cmdiocb->context_un.rsp_iocb = rspiocb;
1778 irsp = &rspiocb->iocb;
1779 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1780 "RRQ cmpl: status:x%x/x%x did:x%x",
1781 irsp->ulpStatus, irsp->un.ulpWord[4],
1782 irsp->un.elsreq64.remoteID);
1784 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1785 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) {
1786 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1787 "2882 RRQ completes to NPort x%x "
1788 "with no ndlp. Data: x%x x%x x%x\n",
1789 irsp->un.elsreq64.remoteID,
1790 irsp->ulpStatus, irsp->un.ulpWord[4],
1795 /* rrq completes to NPort <nlp_DID> */
1796 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1797 "2880 RRQ completes to NPort x%x "
1798 "Data: x%x x%x x%x x%x x%x\n",
1799 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1800 irsp->ulpTimeout, rrq->xritag, rrq->rxid);
1802 if (irsp->ulpStatus) {
1803 /* Check for retry */
1804 /* RRQ failed Don't print the vport to vport rjts */
1805 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1806 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1807 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1808 (phba)->pport->cfg_log_verbose & LOG_ELS)
1809 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1810 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1811 ndlp->nlp_DID, irsp->ulpStatus,
1812 irsp->un.ulpWord[4]);
1816 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1817 lpfc_els_free_iocb(phba, cmdiocb);
1821 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1822 * @phba: pointer to lpfc hba data structure.
1823 * @cmdiocb: pointer to lpfc command iocb data structure.
1824 * @rspiocb: pointer to lpfc response iocb data structure.
1826 * This routine is the completion callback function for issuing the Port
1827 * Login (PLOGI) command. For PLOGI completion, there must be an active
1828 * ndlp on the vport node list that matches the remote node ID from the
1829 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1830 * ignored and command IOCB released. The PLOGI response IOCB status is
1831 * checked for error conditons. If there is error status reported, PLOGI
1832 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1833 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1834 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1835 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1836 * there are additional N_Port nodes with the vport that need to perform
1837 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1841 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1842 struct lpfc_iocbq *rspiocb)
1844 struct lpfc_vport *vport = cmdiocb->vport;
1845 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1847 struct lpfc_nodelist *ndlp;
1848 struct lpfc_dmabuf *prsp;
1851 /* we pass cmdiocb to state machine which needs rspiocb as well */
1852 cmdiocb->context_un.rsp_iocb = rspiocb;
1854 irsp = &rspiocb->iocb;
1855 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1856 "PLOGI cmpl: status:x%x/x%x did:x%x",
1857 irsp->ulpStatus, irsp->un.ulpWord[4],
1858 irsp->un.elsreq64.remoteID);
1860 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1861 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
1862 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1863 "0136 PLOGI completes to NPort x%x "
1864 "with no ndlp. Data: x%x x%x x%x\n",
1865 irsp->un.elsreq64.remoteID,
1866 irsp->ulpStatus, irsp->un.ulpWord[4],
1871 /* Since ndlp can be freed in the disc state machine, note if this node
1872 * is being used during discovery.
1874 spin_lock_irq(shost->host_lock);
1875 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1876 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1877 spin_unlock_irq(shost->host_lock);
1880 /* PLOGI completes to NPort <nlp_DID> */
1881 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1882 "0102 PLOGI completes to NPort x%x "
1883 "Data: x%x x%x x%x x%x x%x\n",
1884 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1885 irsp->ulpTimeout, disc, vport->num_disc_nodes);
1886 /* Check to see if link went down during discovery */
1887 if (lpfc_els_chk_latt(vport)) {
1888 spin_lock_irq(shost->host_lock);
1889 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1890 spin_unlock_irq(shost->host_lock);
1894 if (irsp->ulpStatus) {
1895 /* Check for retry */
1896 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1897 /* ELS command is being retried */
1899 spin_lock_irq(shost->host_lock);
1900 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1901 spin_unlock_irq(shost->host_lock);
1905 /* PLOGI failed Don't print the vport to vport rjts */
1906 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1907 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1908 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1909 (phba)->pport->cfg_log_verbose & LOG_ELS)
1910 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1911 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1912 ndlp->nlp_DID, irsp->ulpStatus,
1913 irsp->un.ulpWord[4]);
1914 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1915 if (lpfc_error_lost_link(irsp))
1916 rc = NLP_STE_FREED_NODE;
1918 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1919 NLP_EVT_CMPL_PLOGI);
1921 /* Good status, call state machine */
1922 prsp = list_entry(((struct lpfc_dmabuf *)
1923 cmdiocb->context2)->list.next,
1924 struct lpfc_dmabuf, list);
1925 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
1926 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1927 NLP_EVT_CMPL_PLOGI);
1930 if (disc && vport->num_disc_nodes) {
1931 /* Check to see if there are more PLOGIs to be sent */
1932 lpfc_more_plogi(vport);
1934 if (vport->num_disc_nodes == 0) {
1935 spin_lock_irq(shost->host_lock);
1936 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1937 spin_unlock_irq(shost->host_lock);
1939 lpfc_can_disctmo(vport);
1940 lpfc_end_rscn(vport);
1945 lpfc_els_free_iocb(phba, cmdiocb);
1950 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1951 * @vport: pointer to a host virtual N_Port data structure.
1952 * @did: destination port identifier.
1953 * @retry: number of retries to the command IOCB.
1955 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1956 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1957 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1958 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1959 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1961 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1962 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1963 * will be stored into the context1 field of the IOCB for the completion
1964 * callback function to the PLOGI ELS command.
1967 * 0 - Successfully issued a plogi for @vport
1968 * 1 - failed to issue a plogi for @vport
1971 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
1973 struct lpfc_hba *phba = vport->phba;
1974 struct serv_parm *sp;
1975 struct lpfc_nodelist *ndlp;
1976 struct lpfc_iocbq *elsiocb;
1981 ndlp = lpfc_findnode_did(vport, did);
1982 if (ndlp && !NLP_CHK_NODE_ACT(ndlp))
1985 /* If ndlp is not NULL, we will bump the reference count on it */
1986 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1987 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
1992 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1994 /* For PLOGI request, remainder of payload is service parameters */
1995 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
1996 pcmd += sizeof(uint32_t);
1997 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1998 sp = (struct serv_parm *) pcmd;
2001 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
2002 * to device on remote loops work.
2004 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
2005 sp->cmn.altBbCredit = 1;
2007 if (sp->cmn.fcphLow < FC_PH_4_3)
2008 sp->cmn.fcphLow = FC_PH_4_3;
2010 if (sp->cmn.fcphHigh < FC_PH3)
2011 sp->cmn.fcphHigh = FC_PH3;
2013 sp->cmn.valid_vendor_ver_level = 0;
2014 memset(sp->vendorVersion, 0, sizeof(sp->vendorVersion));
2016 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2017 "Issue PLOGI: did:x%x",
2020 phba->fc_stat.elsXmitPLOGI++;
2021 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
2022 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2024 if (ret == IOCB_ERROR) {
2025 lpfc_els_free_iocb(phba, elsiocb);
2032 * lpfc_cmpl_els_prli - Completion callback function for prli
2033 * @phba: pointer to lpfc hba data structure.
2034 * @cmdiocb: pointer to lpfc command iocb data structure.
2035 * @rspiocb: pointer to lpfc response iocb data structure.
2037 * This routine is the completion callback function for a Process Login
2038 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2039 * status. If there is error status reported, PRLI retry shall be attempted
2040 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2041 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2042 * ndlp to mark the PRLI completion.
2045 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2046 struct lpfc_iocbq *rspiocb)
2048 struct lpfc_vport *vport = cmdiocb->vport;
2049 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2051 struct lpfc_nodelist *ndlp;
2053 /* we pass cmdiocb to state machine which needs rspiocb as well */
2054 cmdiocb->context_un.rsp_iocb = rspiocb;
2056 irsp = &(rspiocb->iocb);
2057 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2058 spin_lock_irq(shost->host_lock);
2059 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2060 spin_unlock_irq(shost->host_lock);
2062 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2063 "PRLI cmpl: status:x%x/x%x did:x%x",
2064 irsp->ulpStatus, irsp->un.ulpWord[4],
2066 /* PRLI completes to NPort <nlp_DID> */
2067 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2068 "0103 PRLI completes to NPort x%x "
2069 "Data: x%x x%x x%x x%x\n",
2070 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2071 irsp->ulpTimeout, vport->num_disc_nodes);
2073 vport->fc_prli_sent--;
2074 /* Check to see if link went down during discovery */
2075 if (lpfc_els_chk_latt(vport))
2078 if (irsp->ulpStatus) {
2079 /* Check for retry */
2080 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2081 /* ELS command is being retried */
2085 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2086 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
2087 ndlp->nlp_DID, irsp->ulpStatus,
2088 irsp->un.ulpWord[4]);
2089 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2090 if (lpfc_error_lost_link(irsp))
2093 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2096 /* Good status, call state machine */
2097 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2100 lpfc_els_free_iocb(phba, cmdiocb);
2105 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2106 * @vport: pointer to a host virtual N_Port data structure.
2107 * @ndlp: pointer to a node-list data structure.
2108 * @retry: number of retries to the command IOCB.
2110 * This routine issues a Process Login (PRLI) ELS command for the
2111 * @vport. The PRLI service parameters are set up in the payload of the
2112 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2113 * is put to the IOCB completion callback func field before invoking the
2114 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2116 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2117 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2118 * will be stored into the context1 field of the IOCB for the completion
2119 * callback function to the PRLI ELS command.
2122 * 0 - successfully issued prli iocb command for @vport
2123 * 1 - failed to issue prli iocb command for @vport
2126 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2129 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2130 struct lpfc_hba *phba = vport->phba;
2132 struct lpfc_iocbq *elsiocb;
2136 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2137 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2138 ndlp->nlp_DID, ELS_CMD_PRLI);
2142 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2144 /* For PRLI request, remainder of payload is service parameters */
2145 memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t)));
2146 *((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
2147 pcmd += sizeof(uint32_t);
2149 /* For PRLI, remainder of payload is PRLI parameter page */
2150 npr = (PRLI *) pcmd;
2152 * If our firmware version is 3.20 or later,
2153 * set the following bits for FC-TAPE support.
2155 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2156 npr->ConfmComplAllowed = 1;
2158 npr->TaskRetryIdReq = 1;
2160 npr->estabImagePair = 1;
2161 npr->readXferRdyDis = 1;
2162 if (vport->cfg_first_burst_size)
2163 npr->writeXferRdyDis = 1;
2165 /* For FCP support */
2166 npr->prliType = PRLI_FCP_TYPE;
2167 npr->initiatorFunc = 1;
2169 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2170 "Issue PRLI: did:x%x",
2171 ndlp->nlp_DID, 0, 0);
2173 phba->fc_stat.elsXmitPRLI++;
2174 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
2175 spin_lock_irq(shost->host_lock);
2176 ndlp->nlp_flag |= NLP_PRLI_SND;
2177 spin_unlock_irq(shost->host_lock);
2178 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2180 spin_lock_irq(shost->host_lock);
2181 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2182 spin_unlock_irq(shost->host_lock);
2183 lpfc_els_free_iocb(phba, elsiocb);
2186 vport->fc_prli_sent++;
2191 * lpfc_rscn_disc - Perform rscn discovery for a vport
2192 * @vport: pointer to a host virtual N_Port data structure.
2194 * This routine performs Registration State Change Notification (RSCN)
2195 * discovery for a @vport. If the @vport's node port recovery count is not
2196 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2197 * the nodes that need recovery. If none of the PLOGI were needed through
2198 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2199 * invoked to check and handle possible more RSCN came in during the period
2200 * of processing the current ones.
2203 lpfc_rscn_disc(struct lpfc_vport *vport)
2205 lpfc_can_disctmo(vport);
2207 /* RSCN discovery */
2208 /* go thru NPR nodes and issue ELS PLOGIs */
2209 if (vport->fc_npr_cnt)
2210 if (lpfc_els_disc_plogi(vport))
2213 lpfc_end_rscn(vport);
2217 * lpfc_adisc_done - Complete the adisc phase of discovery
2218 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2220 * This function is called when the final ADISC is completed during discovery.
2221 * This function handles clearing link attention or issuing reg_vpi depending
2222 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2224 * This function is called with no locks held.
2227 lpfc_adisc_done(struct lpfc_vport *vport)
2229 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2230 struct lpfc_hba *phba = vport->phba;
2233 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2234 * and continue discovery.
2236 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2237 !(vport->fc_flag & FC_RSCN_MODE) &&
2238 (phba->sli_rev < LPFC_SLI_REV4)) {
2239 /* The ADISCs are complete. Doesn't matter if they
2240 * succeeded or failed because the ADISC completion
2241 * routine guarantees to call the state machine and
2242 * the RPI is either unregistered (failed ADISC response)
2243 * or the RPI is still valid and the node is marked
2244 * mapped for a target. The exchanges should be in the
2245 * correct state. This code is specific to SLI3.
2247 lpfc_issue_clear_la(phba, vport);
2248 lpfc_issue_reg_vpi(phba, vport);
2252 * For SLI2, we need to set port_state to READY
2253 * and continue discovery.
2255 if (vport->port_state < LPFC_VPORT_READY) {
2256 /* If we get here, there is nothing to ADISC */
2257 lpfc_issue_clear_la(phba, vport);
2258 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2259 vport->num_disc_nodes = 0;
2260 /* go thru NPR list, issue ELS PLOGIs */
2261 if (vport->fc_npr_cnt)
2262 lpfc_els_disc_plogi(vport);
2263 if (!vport->num_disc_nodes) {
2264 spin_lock_irq(shost->host_lock);
2265 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2266 spin_unlock_irq(shost->host_lock);
2267 lpfc_can_disctmo(vport);
2268 lpfc_end_rscn(vport);
2271 vport->port_state = LPFC_VPORT_READY;
2273 lpfc_rscn_disc(vport);
2277 * lpfc_more_adisc - Issue more adisc as needed
2278 * @vport: pointer to a host virtual N_Port data structure.
2280 * This routine determines whether there are more ndlps on a @vport
2281 * node list need to have Address Discover (ADISC) issued. If so, it will
2282 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2283 * remaining nodes which need to have ADISC sent.
2286 lpfc_more_adisc(struct lpfc_vport *vport)
2288 if (vport->num_disc_nodes)
2289 vport->num_disc_nodes--;
2290 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2291 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2292 "0210 Continue discovery with %d ADISCs to go "
2293 "Data: x%x x%x x%x\n",
2294 vport->num_disc_nodes, vport->fc_adisc_cnt,
2295 vport->fc_flag, vport->port_state);
2296 /* Check to see if there are more ADISCs to be sent */
2297 if (vport->fc_flag & FC_NLP_MORE) {
2298 lpfc_set_disctmo(vport);
2299 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2300 lpfc_els_disc_adisc(vport);
2302 if (!vport->num_disc_nodes)
2303 lpfc_adisc_done(vport);
2308 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2309 * @phba: pointer to lpfc hba data structure.
2310 * @cmdiocb: pointer to lpfc command iocb data structure.
2311 * @rspiocb: pointer to lpfc response iocb data structure.
2313 * This routine is the completion function for issuing the Address Discover
2314 * (ADISC) command. It first checks to see whether link went down during
2315 * the discovery process. If so, the node will be marked as node port
2316 * recovery for issuing discover IOCB by the link attention handler and
2317 * exit. Otherwise, the response status is checked. If error was reported
2318 * in the response status, the ADISC command shall be retried by invoking
2319 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2320 * the response status, the state machine is invoked to set transition
2321 * with respect to NLP_EVT_CMPL_ADISC event.
2324 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2325 struct lpfc_iocbq *rspiocb)
2327 struct lpfc_vport *vport = cmdiocb->vport;
2328 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2330 struct lpfc_nodelist *ndlp;
2333 /* we pass cmdiocb to state machine which needs rspiocb as well */
2334 cmdiocb->context_un.rsp_iocb = rspiocb;
2336 irsp = &(rspiocb->iocb);
2337 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2339 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2340 "ADISC cmpl: status:x%x/x%x did:x%x",
2341 irsp->ulpStatus, irsp->un.ulpWord[4],
2344 /* Since ndlp can be freed in the disc state machine, note if this node
2345 * is being used during discovery.
2347 spin_lock_irq(shost->host_lock);
2348 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2349 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2350 spin_unlock_irq(shost->host_lock);
2351 /* ADISC completes to NPort <nlp_DID> */
2352 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2353 "0104 ADISC completes to NPort x%x "
2354 "Data: x%x x%x x%x x%x x%x\n",
2355 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2356 irsp->ulpTimeout, disc, vport->num_disc_nodes);
2357 /* Check to see if link went down during discovery */
2358 if (lpfc_els_chk_latt(vport)) {
2359 spin_lock_irq(shost->host_lock);
2360 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2361 spin_unlock_irq(shost->host_lock);
2365 if (irsp->ulpStatus) {
2366 /* Check for retry */
2367 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2368 /* ELS command is being retried */
2370 spin_lock_irq(shost->host_lock);
2371 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2372 spin_unlock_irq(shost->host_lock);
2373 lpfc_set_disctmo(vport);
2378 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2379 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2380 ndlp->nlp_DID, irsp->ulpStatus,
2381 irsp->un.ulpWord[4]);
2382 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2383 if (!lpfc_error_lost_link(irsp))
2384 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2385 NLP_EVT_CMPL_ADISC);
2387 /* Good status, call state machine */
2388 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2389 NLP_EVT_CMPL_ADISC);
2391 /* Check to see if there are more ADISCs to be sent */
2392 if (disc && vport->num_disc_nodes)
2393 lpfc_more_adisc(vport);
2395 lpfc_els_free_iocb(phba, cmdiocb);
2400 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2401 * @vport: pointer to a virtual N_Port data structure.
2402 * @ndlp: pointer to a node-list data structure.
2403 * @retry: number of retries to the command IOCB.
2405 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2406 * @vport. It prepares the payload of the ADISC ELS command, updates the
2407 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2408 * to issue the ADISC ELS command.
2410 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2411 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2412 * will be stored into the context1 field of the IOCB for the completion
2413 * callback function to the ADISC ELS command.
2416 * 0 - successfully issued adisc
2417 * 1 - failed to issue adisc
2420 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2423 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2424 struct lpfc_hba *phba = vport->phba;
2426 struct lpfc_iocbq *elsiocb;
2430 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2431 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2432 ndlp->nlp_DID, ELS_CMD_ADISC);
2436 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2438 /* For ADISC request, remainder of payload is service parameters */
2439 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
2440 pcmd += sizeof(uint32_t);
2442 /* Fill in ADISC payload */
2443 ap = (ADISC *) pcmd;
2444 ap->hardAL_PA = phba->fc_pref_ALPA;
2445 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2446 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2447 ap->DID = be32_to_cpu(vport->fc_myDID);
2449 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2450 "Issue ADISC: did:x%x",
2451 ndlp->nlp_DID, 0, 0);
2453 phba->fc_stat.elsXmitADISC++;
2454 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
2455 spin_lock_irq(shost->host_lock);
2456 ndlp->nlp_flag |= NLP_ADISC_SND;
2457 spin_unlock_irq(shost->host_lock);
2458 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2460 spin_lock_irq(shost->host_lock);
2461 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2462 spin_unlock_irq(shost->host_lock);
2463 lpfc_els_free_iocb(phba, elsiocb);
2470 * lpfc_cmpl_els_logo - Completion callback function for logo
2471 * @phba: pointer to lpfc hba data structure.
2472 * @cmdiocb: pointer to lpfc command iocb data structure.
2473 * @rspiocb: pointer to lpfc response iocb data structure.
2475 * This routine is the completion function for issuing the ELS Logout (LOGO)
2476 * command. If no error status was reported from the LOGO response, the
2477 * state machine of the associated ndlp shall be invoked for transition with
2478 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2479 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2482 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2483 struct lpfc_iocbq *rspiocb)
2485 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2486 struct lpfc_vport *vport = ndlp->vport;
2487 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2489 struct lpfcMboxq *mbox;
2490 unsigned long flags;
2491 uint32_t skip_recovery = 0;
2493 /* we pass cmdiocb to state machine which needs rspiocb as well */
2494 cmdiocb->context_un.rsp_iocb = rspiocb;
2496 irsp = &(rspiocb->iocb);
2497 spin_lock_irq(shost->host_lock);
2498 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2499 spin_unlock_irq(shost->host_lock);
2501 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2502 "LOGO cmpl: status:x%x/x%x did:x%x",
2503 irsp->ulpStatus, irsp->un.ulpWord[4],
2506 /* LOGO completes to NPort <nlp_DID> */
2507 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2508 "0105 LOGO completes to NPort x%x "
2509 "Data: x%x x%x x%x x%x\n",
2510 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2511 irsp->ulpTimeout, vport->num_disc_nodes);
2513 if (lpfc_els_chk_latt(vport)) {
2518 /* Check to see if link went down during discovery */
2519 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
2520 /* NLP_EVT_DEVICE_RM should unregister the RPI
2521 * which should abort all outstanding IOs.
2523 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2529 if (irsp->ulpStatus) {
2530 /* Check for retry */
2531 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2532 /* ELS command is being retried */
2537 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2538 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2539 ndlp->nlp_DID, irsp->ulpStatus,
2540 irsp->un.ulpWord[4]);
2541 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2542 if (lpfc_error_lost_link(irsp)) {
2548 /* Call state machine. This will unregister the rpi if needed. */
2549 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
2552 lpfc_els_free_iocb(phba, cmdiocb);
2553 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2554 if ((vport->fc_flag & FC_PT2PT) &&
2555 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
2556 phba->pport->fc_myDID = 0;
2557 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2559 lpfc_config_link(phba, mbox);
2560 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2561 mbox->vport = vport;
2562 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
2564 mempool_free(mbox, phba->mbox_mem_pool);
2571 * If the node is a target, the handling attempts to recover the port.
2572 * For any other port type, the rpi is unregistered as an implicit
2575 if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
2576 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2577 spin_lock_irqsave(shost->host_lock, flags);
2578 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2579 spin_unlock_irqrestore(shost->host_lock, flags);
2581 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2582 "3187 LOGO completes to NPort x%x: Start "
2583 "Recovery Data: x%x x%x x%x x%x\n",
2584 ndlp->nlp_DID, irsp->ulpStatus,
2585 irsp->un.ulpWord[4], irsp->ulpTimeout,
2586 vport->num_disc_nodes);
2587 lpfc_disc_start(vport);
2593 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2594 * @vport: pointer to a virtual N_Port data structure.
2595 * @ndlp: pointer to a node-list data structure.
2596 * @retry: number of retries to the command IOCB.
2598 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2599 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2600 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2601 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2603 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2604 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2605 * will be stored into the context1 field of the IOCB for the completion
2606 * callback function to the LOGO ELS command.
2609 * 0 - successfully issued logo
2610 * 1 - failed to issue logo
2613 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2616 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2617 struct lpfc_hba *phba = vport->phba;
2618 struct lpfc_iocbq *elsiocb;
2623 spin_lock_irq(shost->host_lock);
2624 if (ndlp->nlp_flag & NLP_LOGO_SND) {
2625 spin_unlock_irq(shost->host_lock);
2628 spin_unlock_irq(shost->host_lock);
2630 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
2631 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2632 ndlp->nlp_DID, ELS_CMD_LOGO);
2636 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2637 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
2638 pcmd += sizeof(uint32_t);
2640 /* Fill in LOGO payload */
2641 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
2642 pcmd += sizeof(uint32_t);
2643 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
2645 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2646 "Issue LOGO: did:x%x",
2647 ndlp->nlp_DID, 0, 0);
2650 * If we are issuing a LOGO, we may try to recover the remote NPort
2651 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2652 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2653 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2654 * for that ELS cmd. To avoid this situation, lets get rid of the
2655 * RPI right now, before any ELS cmds are sent.
2657 spin_lock_irq(shost->host_lock);
2658 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
2659 spin_unlock_irq(shost->host_lock);
2660 if (lpfc_unreg_rpi(vport, ndlp)) {
2661 lpfc_els_free_iocb(phba, elsiocb);
2665 phba->fc_stat.elsXmitLOGO++;
2666 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
2667 spin_lock_irq(shost->host_lock);
2668 ndlp->nlp_flag |= NLP_LOGO_SND;
2669 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
2670 spin_unlock_irq(shost->host_lock);
2671 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2673 if (rc == IOCB_ERROR) {
2674 spin_lock_irq(shost->host_lock);
2675 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2676 spin_unlock_irq(shost->host_lock);
2677 lpfc_els_free_iocb(phba, elsiocb);
2684 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2685 * @phba: pointer to lpfc hba data structure.
2686 * @cmdiocb: pointer to lpfc command iocb data structure.
2687 * @rspiocb: pointer to lpfc response iocb data structure.
2689 * This routine is a generic completion callback function for ELS commands.
2690 * Specifically, it is the callback function which does not need to perform
2691 * any command specific operations. It is currently used by the ELS command
2692 * issuing routines for the ELS State Change Request (SCR),
2693 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2694 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2695 * certain debug loggings, this callback function simply invokes the
2696 * lpfc_els_chk_latt() routine to check whether link went down during the
2697 * discovery process.
2700 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2701 struct lpfc_iocbq *rspiocb)
2703 struct lpfc_vport *vport = cmdiocb->vport;
2706 irsp = &rspiocb->iocb;
2708 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2709 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2710 irsp->ulpStatus, irsp->un.ulpWord[4],
2711 irsp->un.elsreq64.remoteID);
2712 /* ELS cmd tag <ulpIoTag> completes */
2713 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2714 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2715 irsp->ulpIoTag, irsp->ulpStatus,
2716 irsp->un.ulpWord[4], irsp->ulpTimeout);
2717 /* Check to see if link went down during discovery */
2718 lpfc_els_chk_latt(vport);
2719 lpfc_els_free_iocb(phba, cmdiocb);
2724 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2725 * @vport: pointer to a host virtual N_Port data structure.
2726 * @nportid: N_Port identifier to the remote node.
2727 * @retry: number of retries to the command IOCB.
2729 * This routine issues a State Change Request (SCR) to a fabric node
2730 * on a @vport. The remote node @nportid is passed into the function. It
2731 * first search the @vport node list to find the matching ndlp. If no such
2732 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2733 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2734 * routine is invoked to send the SCR IOCB.
2736 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2737 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2738 * will be stored into the context1 field of the IOCB for the completion
2739 * callback function to the SCR ELS command.
2742 * 0 - Successfully issued scr command
2743 * 1 - Failed to issue scr command
2746 lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2748 struct lpfc_hba *phba = vport->phba;
2749 struct lpfc_iocbq *elsiocb;
2752 struct lpfc_nodelist *ndlp;
2754 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
2756 ndlp = lpfc_findnode_did(vport, nportid);
2758 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2761 lpfc_nlp_init(vport, ndlp, nportid);
2762 lpfc_enqueue_node(vport, ndlp);
2763 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2764 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2769 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2770 ndlp->nlp_DID, ELS_CMD_SCR);
2773 /* This will trigger the release of the node just
2780 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2782 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
2783 pcmd += sizeof(uint32_t);
2785 /* For SCR, remainder of payload is SCR parameter page */
2786 memset(pcmd, 0, sizeof(SCR));
2787 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
2789 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2790 "Issue SCR: did:x%x",
2791 ndlp->nlp_DID, 0, 0);
2793 phba->fc_stat.elsXmitSCR++;
2794 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2795 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2797 /* The additional lpfc_nlp_put will cause the following
2798 * lpfc_els_free_iocb routine to trigger the rlease of
2802 lpfc_els_free_iocb(phba, elsiocb);
2805 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2806 * trigger the release of node.
2814 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2815 * @vport: pointer to a host virtual N_Port data structure.
2816 * @nportid: N_Port identifier to the remote node.
2817 * @retry: number of retries to the command IOCB.
2819 * This routine issues a Fibre Channel Address Resolution Response
2820 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2821 * is passed into the function. It first search the @vport node list to find
2822 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2823 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2824 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2826 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2827 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2828 * will be stored into the context1 field of the IOCB for the completion
2829 * callback function to the PARPR ELS command.
2832 * 0 - Successfully issued farpr command
2833 * 1 - Failed to issue farpr command
2836 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2838 struct lpfc_hba *phba = vport->phba;
2839 struct lpfc_iocbq *elsiocb;
2844 struct lpfc_nodelist *ondlp;
2845 struct lpfc_nodelist *ndlp;
2847 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
2849 ndlp = lpfc_findnode_did(vport, nportid);
2851 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2854 lpfc_nlp_init(vport, ndlp, nportid);
2855 lpfc_enqueue_node(vport, ndlp);
2856 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2857 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2862 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2863 ndlp->nlp_DID, ELS_CMD_RNID);
2865 /* This will trigger the release of the node just
2872 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2874 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
2875 pcmd += sizeof(uint32_t);
2877 /* Fill in FARPR payload */
2878 fp = (FARP *) (pcmd);
2879 memset(fp, 0, sizeof(FARP));
2880 lp = (uint32_t *) pcmd;
2881 *lp++ = be32_to_cpu(nportid);
2882 *lp++ = be32_to_cpu(vport->fc_myDID);
2884 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
2886 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
2887 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2888 ondlp = lpfc_findnode_did(vport, nportid);
2889 if (ondlp && NLP_CHK_NODE_ACT(ondlp)) {
2890 memcpy(&fp->OportName, &ondlp->nlp_portname,
2891 sizeof(struct lpfc_name));
2892 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
2893 sizeof(struct lpfc_name));
2896 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2897 "Issue FARPR: did:x%x",
2898 ndlp->nlp_DID, 0, 0);
2900 phba->fc_stat.elsXmitFARPR++;
2901 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2902 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2904 /* The additional lpfc_nlp_put will cause the following
2905 * lpfc_els_free_iocb routine to trigger the release of
2909 lpfc_els_free_iocb(phba, elsiocb);
2912 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2913 * trigger the release of the node.
2920 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2921 * @vport: pointer to a host virtual N_Port data structure.
2922 * @nlp: pointer to a node-list data structure.
2924 * This routine cancels the timer with a delayed IOCB-command retry for
2925 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2926 * removes the ELS retry event if it presents. In addition, if the
2927 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2928 * commands are sent for the @vport's nodes that require issuing discovery
2932 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
2934 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2935 struct lpfc_work_evt *evtp;
2937 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
2939 spin_lock_irq(shost->host_lock);
2940 nlp->nlp_flag &= ~NLP_DELAY_TMO;
2941 spin_unlock_irq(shost->host_lock);
2942 del_timer_sync(&nlp->nlp_delayfunc);
2943 nlp->nlp_last_elscmd = 0;
2944 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
2945 list_del_init(&nlp->els_retry_evt.evt_listp);
2946 /* Decrement nlp reference count held for the delayed retry */
2947 evtp = &nlp->els_retry_evt;
2948 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
2950 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
2951 spin_lock_irq(shost->host_lock);
2952 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2953 spin_unlock_irq(shost->host_lock);
2954 if (vport->num_disc_nodes) {
2955 if (vport->port_state < LPFC_VPORT_READY) {
2956 /* Check if there are more ADISCs to be sent */
2957 lpfc_more_adisc(vport);
2959 /* Check if there are more PLOGIs to be sent */
2960 lpfc_more_plogi(vport);
2961 if (vport->num_disc_nodes == 0) {
2962 spin_lock_irq(shost->host_lock);
2963 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2964 spin_unlock_irq(shost->host_lock);
2965 lpfc_can_disctmo(vport);
2966 lpfc_end_rscn(vport);
2975 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2976 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2978 * This routine is invoked by the ndlp delayed-function timer to check
2979 * whether there is any pending ELS retry event(s) with the node. If not, it
2980 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2981 * adds the delayed events to the HBA work list and invokes the
2982 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2983 * event. Note that lpfc_nlp_get() is called before posting the event to
2984 * the work list to hold reference count of ndlp so that it guarantees the
2985 * reference to ndlp will still be available when the worker thread gets
2986 * to the event associated with the ndlp.
2989 lpfc_els_retry_delay(unsigned long ptr)
2991 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
2992 struct lpfc_vport *vport = ndlp->vport;
2993 struct lpfc_hba *phba = vport->phba;
2994 unsigned long flags;
2995 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
2997 spin_lock_irqsave(&phba->hbalock, flags);
2998 if (!list_empty(&evtp->evt_listp)) {
2999 spin_unlock_irqrestore(&phba->hbalock, flags);
3003 /* We need to hold the node by incrementing the reference
3004 * count until the queued work is done
3006 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
3007 if (evtp->evt_arg1) {
3008 evtp->evt = LPFC_EVT_ELS_RETRY;
3009 list_add_tail(&evtp->evt_listp, &phba->work_list);
3010 lpfc_worker_wake_up(phba);
3012 spin_unlock_irqrestore(&phba->hbalock, flags);
3017 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
3018 * @ndlp: pointer to a node-list data structure.
3020 * This routine is the worker-thread handler for processing the @ndlp delayed
3021 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3022 * the last ELS command from the associated ndlp and invokes the proper ELS
3023 * function according to the delayed ELS command to retry the command.
3026 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
3028 struct lpfc_vport *vport = ndlp->vport;
3029 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3030 uint32_t cmd, retry;
3032 spin_lock_irq(shost->host_lock);
3033 cmd = ndlp->nlp_last_elscmd;
3034 ndlp->nlp_last_elscmd = 0;
3036 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
3037 spin_unlock_irq(shost->host_lock);
3041 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3042 spin_unlock_irq(shost->host_lock);
3044 * If a discovery event readded nlp_delayfunc after timer
3045 * firing and before processing the timer, cancel the
3048 del_timer_sync(&ndlp->nlp_delayfunc);
3049 retry = ndlp->nlp_retry;
3050 ndlp->nlp_retry = 0;
3054 lpfc_issue_els_flogi(vport, ndlp, retry);
3057 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
3058 ndlp->nlp_prev_state = ndlp->nlp_state;
3059 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
3063 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
3064 ndlp->nlp_prev_state = ndlp->nlp_state;
3065 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3069 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
3070 ndlp->nlp_prev_state = ndlp->nlp_state;
3071 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3075 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
3076 ndlp->nlp_prev_state = ndlp->nlp_state;
3077 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3081 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
3082 lpfc_issue_els_fdisc(vport, ndlp, retry);
3089 * lpfc_els_retry - Make retry decision on an els command iocb
3090 * @phba: pointer to lpfc hba data structure.
3091 * @cmdiocb: pointer to lpfc command iocb data structure.
3092 * @rspiocb: pointer to lpfc response iocb data structure.
3094 * This routine makes a retry decision on an ELS command IOCB, which has
3095 * failed. The following ELS IOCBs use this function for retrying the command
3096 * when previously issued command responsed with error status: FLOGI, PLOGI,
3097 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3098 * returned error status, it makes the decision whether a retry shall be
3099 * issued for the command, and whether a retry shall be made immediately or
3100 * delayed. In the former case, the corresponding ELS command issuing-function
3101 * is called to retry the command. In the later case, the ELS command shall
3102 * be posted to the ndlp delayed event and delayed function timer set to the
3103 * ndlp for the delayed command issusing.
3106 * 0 - No retry of els command is made
3107 * 1 - Immediate or delayed retry of els command is made
3110 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3111 struct lpfc_iocbq *rspiocb)
3113 struct lpfc_vport *vport = cmdiocb->vport;
3114 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3115 IOCB_t *irsp = &rspiocb->iocb;
3116 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3117 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3120 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
3126 /* Note: context2 may be 0 for internal driver abort
3127 * of delays ELS command.
3130 if (pcmd && pcmd->virt) {
3131 elscmd = (uint32_t *) (pcmd->virt);
3135 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
3136 did = ndlp->nlp_DID;
3138 /* We should only hit this case for retrying PLOGI */
3139 did = irsp->un.elsreq64.remoteID;
3140 ndlp = lpfc_findnode_did(vport, did);
3141 if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp))
3142 && (cmd != ELS_CMD_PLOGI))
3146 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3147 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3148 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
3150 switch (irsp->ulpStatus) {
3151 case IOSTAT_FCP_RSP_ERROR:
3153 case IOSTAT_REMOTE_STOP:
3154 if (phba->sli_rev == LPFC_SLI_REV4) {
3155 /* This IO was aborted by the target, we don't
3156 * know the rxid and because we did not send the
3157 * ABTS we cannot generate and RRQ.
3159 lpfc_set_rrq_active(phba, ndlp,
3160 cmdiocb->sli4_lxritag, 0, 0);
3163 case IOSTAT_LOCAL_REJECT:
3164 switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
3165 case IOERR_LOOP_OPEN_FAILURE:
3166 if (cmd == ELS_CMD_FLOGI) {
3167 if (PCI_DEVICE_ID_HORNET ==
3168 phba->pcidev->device) {
3169 phba->fc_topology = LPFC_TOPOLOGY_LOOP;
3170 phba->pport->fc_myDID = 0;
3171 phba->alpa_map[0] = 0;
3172 phba->alpa_map[1] = 0;
3175 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
3180 case IOERR_ILLEGAL_COMMAND:
3181 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3182 "0124 Retry illegal cmd x%x "
3183 "retry:x%x delay:x%x\n",
3184 cmd, cmdiocb->retry, delay);
3186 /* All command's retry policy */
3188 if (cmdiocb->retry > 2)
3192 case IOERR_NO_RESOURCES:
3193 logerr = 1; /* HBA out of resources */
3195 if (cmdiocb->retry > 100)
3200 case IOERR_ILLEGAL_FRAME:
3205 case IOERR_SEQUENCE_TIMEOUT:
3206 case IOERR_INVALID_RPI:
3207 if (cmd == ELS_CMD_PLOGI &&
3208 did == NameServer_DID) {
3209 /* Continue forever if plogi to */
3210 /* the nameserver fails */
3219 case IOSTAT_NPORT_RJT:
3220 case IOSTAT_FABRIC_RJT:
3221 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
3227 case IOSTAT_NPORT_BSY:
3228 case IOSTAT_FABRIC_BSY:
3229 logerr = 1; /* Fabric / Remote NPort out of resources */
3234 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
3235 /* Added for Vendor specifc support
3236 * Just keep retrying for these Rsn / Exp codes
3238 switch (stat.un.b.lsRjtRsnCode) {
3239 case LSRJT_UNABLE_TPC:
3240 if (stat.un.b.lsRjtRsnCodeExp ==
3241 LSEXP_CMD_IN_PROGRESS) {
3242 if (cmd == ELS_CMD_PLOGI) {
3249 if (stat.un.b.lsRjtRsnCodeExp ==
3250 LSEXP_CANT_GIVE_DATA) {
3251 if (cmd == ELS_CMD_PLOGI) {
3258 if ((cmd == ELS_CMD_PLOGI) ||
3259 (cmd == ELS_CMD_PRLI)) {
3261 maxretry = lpfc_max_els_tries + 1;
3265 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3266 (cmd == ELS_CMD_FDISC) &&
3267 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
3268 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3269 "0125 FDISC Failed (x%x). "
3270 "Fabric out of resources\n",
3271 stat.un.lsRjtError);
3272 lpfc_vport_set_state(vport,
3273 FC_VPORT_NO_FABRIC_RSCS);
3277 case LSRJT_LOGICAL_BSY:
3278 if ((cmd == ELS_CMD_PLOGI) ||
3279 (cmd == ELS_CMD_PRLI)) {
3282 } else if (cmd == ELS_CMD_FDISC) {
3283 /* FDISC retry policy */
3285 if (cmdiocb->retry >= 32)
3291 case LSRJT_LOGICAL_ERR:
3292 /* There are some cases where switches return this
3293 * error when they are not ready and should be returning
3294 * Logical Busy. We should delay every time.
3296 if (cmd == ELS_CMD_FDISC &&
3297 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
3303 case LSRJT_PROTOCOL_ERR:
3304 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3305 (cmd == ELS_CMD_FDISC) &&
3306 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
3307 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
3309 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3310 "0122 FDISC Failed (x%x). "
3311 "Fabric Detected Bad WWN\n",
3312 stat.un.lsRjtError);
3313 lpfc_vport_set_state(vport,
3314 FC_VPORT_FABRIC_REJ_WWN);
3317 case LSRJT_VENDOR_UNIQUE:
3318 if ((stat.un.b.vendorUnique == 0x45) &&
3319 (cmd == ELS_CMD_FLOGI)) {
3326 case IOSTAT_INTERMED_RSP:
3334 if (did == FDMI_DID)
3337 if ((cmd == ELS_CMD_FLOGI) &&
3338 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
3339 !lpfc_error_lost_link(irsp)) {
3340 /* FLOGI retry policy */
3342 /* retry FLOGI forever */
3343 if (phba->link_flag != LS_LOOPBACK_MODE)
3348 if (cmdiocb->retry >= 100)
3350 else if (cmdiocb->retry >= 32)
3352 } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
3353 /* retry FDISCs every second up to devloss */
3355 maxretry = vport->cfg_devloss_tmo;
3360 if (maxretry && (cmdiocb->retry >= maxretry)) {
3361 phba->fc_stat.elsRetryExceeded++;
3365 if ((vport->load_flag & FC_UNLOADING) != 0)
3370 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
3371 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3372 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3373 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3374 "2849 Stop retry ELS command "
3375 "x%x to remote NPORT x%x, "
3376 "Data: x%x x%x\n", cmd, did,
3377 cmdiocb->retry, delay);
3382 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3383 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3384 "0107 Retry ELS command x%x to remote "
3385 "NPORT x%x Data: x%x x%x\n",
3386 cmd, did, cmdiocb->retry, delay);
3388 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
3389 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
3390 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
3391 IOERR_NO_RESOURCES))) {
3392 /* Don't reset timer for no resources */
3394 /* If discovery / RSCN timer is running, reset it */
3395 if (timer_pending(&vport->fc_disctmo) ||
3396 (vport->fc_flag & FC_RSCN_MODE))
3397 lpfc_set_disctmo(vport);
3400 phba->fc_stat.elsXmitRetry++;
3401 if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
3402 phba->fc_stat.elsDelayRetry++;
3403 ndlp->nlp_retry = cmdiocb->retry;
3405 /* delay is specified in milliseconds */
3406 mod_timer(&ndlp->nlp_delayfunc,
3407 jiffies + msecs_to_jiffies(delay));
3408 spin_lock_irq(shost->host_lock);
3409 ndlp->nlp_flag |= NLP_DELAY_TMO;
3410 spin_unlock_irq(shost->host_lock);
3412 ndlp->nlp_prev_state = ndlp->nlp_state;
3413 if (cmd == ELS_CMD_PRLI)
3414 lpfc_nlp_set_state(vport, ndlp,
3415 NLP_STE_PRLI_ISSUE);
3417 lpfc_nlp_set_state(vport, ndlp,
3419 ndlp->nlp_last_elscmd = cmd;
3425 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
3428 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
3431 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3432 ndlp->nlp_prev_state = ndlp->nlp_state;
3433 lpfc_nlp_set_state(vport, ndlp,
3434 NLP_STE_PLOGI_ISSUE);
3436 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
3439 ndlp->nlp_prev_state = ndlp->nlp_state;
3440 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3441 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
3444 ndlp->nlp_prev_state = ndlp->nlp_state;
3445 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3446 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
3449 ndlp->nlp_prev_state = ndlp->nlp_state;
3450 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3451 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
3455 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3457 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3458 "0137 No retry ELS command x%x to remote "
3459 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3460 cmd, did, irsp->ulpStatus,
3461 irsp->un.ulpWord[4]);
3464 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3465 "0108 No retry ELS command x%x to remote "
3466 "NPORT x%x Retried:%d Error:x%x/%x\n",
3467 cmd, did, cmdiocb->retry, irsp->ulpStatus,
3468 irsp->un.ulpWord[4]);
3474 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3475 * @phba: pointer to lpfc hba data structure.
3476 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3478 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3479 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3480 * checks to see whether there is a lpfc DMA buffer associated with the
3481 * response of the command IOCB. If so, it will be released before releasing
3482 * the lpfc DMA buffer associated with the IOCB itself.
3485 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3488 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
3490 struct lpfc_dmabuf *buf_ptr;
3492 /* Free the response before processing the command. */
3493 if (!list_empty(&buf_ptr1->list)) {
3494 list_remove_head(&buf_ptr1->list, buf_ptr,
3497 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3500 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
3506 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3507 * @phba: pointer to lpfc hba data structure.
3508 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3510 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3511 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3515 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3518 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
3520 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3526 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3527 * @phba: pointer to lpfc hba data structure.
3528 * @elsiocb: pointer to lpfc els command iocb data structure.
3530 * This routine frees a command IOCB and its associated resources. The
3531 * command IOCB data structure contains the reference to various associated
3532 * resources, these fields must be set to NULL if the associated reference
3534 * context1 - reference to ndlp
3535 * context2 - reference to cmd
3536 * context2->next - reference to rsp
3537 * context3 - reference to bpl
3539 * It first properly decrements the reference count held on ndlp for the
3540 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3541 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3542 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3543 * adds the DMA buffer the @phba data structure for the delayed release.
3544 * If reference to the Buffer Pointer List (BPL) is present, the
3545 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3546 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3547 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3550 * 0 - Success (currently, always return 0)
3553 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
3555 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
3556 struct lpfc_nodelist *ndlp;
3558 ndlp = (struct lpfc_nodelist *)elsiocb->context1;
3560 if (ndlp->nlp_flag & NLP_DEFER_RM) {
3563 /* If the ndlp is not being used by another discovery
3566 if (!lpfc_nlp_not_used(ndlp)) {
3567 /* If ndlp is being used by another discovery
3568 * thread, just clear NLP_DEFER_RM
3570 ndlp->nlp_flag &= ~NLP_DEFER_RM;
3575 elsiocb->context1 = NULL;
3577 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3578 if (elsiocb->context2) {
3579 if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
3580 /* Firmware could still be in progress of DMAing
3581 * payload, so don't free data buffer till after
3584 elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
3585 buf_ptr = elsiocb->context2;
3586 elsiocb->context2 = NULL;
3589 spin_lock_irq(&phba->hbalock);
3590 if (!list_empty(&buf_ptr->list)) {
3591 list_remove_head(&buf_ptr->list,
3592 buf_ptr1, struct lpfc_dmabuf,
3594 INIT_LIST_HEAD(&buf_ptr1->list);
3595 list_add_tail(&buf_ptr1->list,
3599 INIT_LIST_HEAD(&buf_ptr->list);
3600 list_add_tail(&buf_ptr->list, &phba->elsbuf);
3602 spin_unlock_irq(&phba->hbalock);
3605 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
3606 lpfc_els_free_data(phba, buf_ptr1);
3607 elsiocb->context2 = NULL;
3611 if (elsiocb->context3) {
3612 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
3613 lpfc_els_free_bpl(phba, buf_ptr);
3614 elsiocb->context3 = NULL;
3616 lpfc_sli_release_iocbq(phba, elsiocb);
3621 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3622 * @phba: pointer to lpfc hba data structure.
3623 * @cmdiocb: pointer to lpfc command iocb data structure.
3624 * @rspiocb: pointer to lpfc response iocb data structure.
3626 * This routine is the completion callback function to the Logout (LOGO)
3627 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3628 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3629 * release the ndlp if it has the last reference remaining (reference count
3630 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3631 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3632 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3633 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3634 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3635 * IOCB data structure.
3638 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3639 struct lpfc_iocbq *rspiocb)
3641 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3642 struct lpfc_vport *vport = cmdiocb->vport;
3645 irsp = &rspiocb->iocb;
3646 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3647 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3648 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
3649 /* ACC to LOGO completes to NPort <nlp_DID> */
3650 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3651 "0109 ACC to LOGO completes to NPort x%x "
3652 "Data: x%x x%x x%x\n",
3653 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3656 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
3657 /* NPort Recovery mode or node is just allocated */
3658 if (!lpfc_nlp_not_used(ndlp)) {
3659 /* If the ndlp is being used by another discovery
3660 * thread, just unregister the RPI.
3662 lpfc_unreg_rpi(vport, ndlp);
3664 /* Indicate the node has already released, should
3665 * not reference to it from within lpfc_els_free_iocb.
3667 cmdiocb->context1 = NULL;
3672 * The driver received a LOGO from the rport and has ACK'd it.
3673 * At this point, the driver is done so release the IOCB
3675 lpfc_els_free_iocb(phba, cmdiocb);
3679 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3680 * @phba: pointer to lpfc hba data structure.
3681 * @pmb: pointer to the driver internal queue element for mailbox command.
3683 * This routine is the completion callback function for unregister default
3684 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3685 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3686 * decrements the ndlp reference count held for this completion callback
3687 * function. After that, it invokes the lpfc_nlp_not_used() to check
3688 * whether there is only one reference left on the ndlp. If so, it will
3689 * perform one more decrement and trigger the release of the ndlp.
3692 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3694 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3695 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3697 pmb->context1 = NULL;
3698 pmb->context2 = NULL;
3700 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3702 mempool_free(pmb, phba->mbox_mem_pool);
3704 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3705 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3706 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3707 atomic_read(&ndlp->kref.refcount),
3708 ndlp->nlp_usg_map, ndlp);
3709 if (NLP_CHK_NODE_ACT(ndlp)) {
3711 /* This is the end of the default RPI cleanup logic for
3712 * this ndlp. If no other discovery threads are using
3713 * this ndlp, free all resources associated with it.
3715 lpfc_nlp_not_used(ndlp);
3717 lpfc_drop_node(ndlp->vport, ndlp);
3725 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3726 * @phba: pointer to lpfc hba data structure.
3727 * @cmdiocb: pointer to lpfc command iocb data structure.
3728 * @rspiocb: pointer to lpfc response iocb data structure.
3730 * This routine is the completion callback function for ELS Response IOCB
3731 * command. In normal case, this callback function just properly sets the
3732 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3733 * field in the command IOCB is not NULL, the referred mailbox command will
3734 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3735 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3736 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3737 * routine shall be invoked trying to release the ndlp if no other threads
3738 * are currently referring it.
3741 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3742 struct lpfc_iocbq *rspiocb)
3744 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3745 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
3746 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
3749 LPFC_MBOXQ_t *mbox = NULL;
3750 struct lpfc_dmabuf *mp = NULL;
3751 uint32_t ls_rjt = 0;
3753 irsp = &rspiocb->iocb;
3755 if (cmdiocb->context_un.mbox)
3756 mbox = cmdiocb->context_un.mbox;
3758 /* First determine if this is a LS_RJT cmpl. Note, this callback
3759 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3761 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
3762 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3763 (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
3764 /* A LS_RJT associated with Default RPI cleanup has its own
3765 * separate code path.
3767 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3771 /* Check to see if link went down during discovery */
3772 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
3774 mp = (struct lpfc_dmabuf *) mbox->context1;
3776 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3779 mempool_free(mbox, phba->mbox_mem_pool);
3781 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3782 (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3783 if (lpfc_nlp_not_used(ndlp)) {
3785 /* Indicate the node has already released,
3786 * should not reference to it from within
3787 * the routine lpfc_els_free_iocb.
3789 cmdiocb->context1 = NULL;
3794 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3795 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3796 irsp->ulpStatus, irsp->un.ulpWord[4],
3797 cmdiocb->iocb.un.elsreq64.remoteID);
3798 /* ELS response tag <ulpIoTag> completes */
3799 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3800 "0110 ELS response tag x%x completes "
3801 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3802 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
3803 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
3804 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3807 if ((rspiocb->iocb.ulpStatus == 0)
3808 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
3809 lpfc_unreg_rpi(vport, ndlp);
3810 /* Increment reference count to ndlp to hold the
3811 * reference to ndlp for the callback function.
3813 mbox->context2 = lpfc_nlp_get(ndlp);
3814 mbox->vport = vport;
3815 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
3816 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3817 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3820 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
3821 ndlp->nlp_prev_state = ndlp->nlp_state;
3822 lpfc_nlp_set_state(vport, ndlp,
3823 NLP_STE_REG_LOGIN_ISSUE);
3826 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
3827 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
3828 != MBX_NOT_FINISHED)
3831 /* Decrement the ndlp reference count we
3832 * set for this failed mailbox command.
3835 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3837 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3838 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3839 "0138 ELS rsp: Cannot issue reg_login for x%x "
3840 "Data: x%x x%x x%x\n",
3841 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3844 if (lpfc_nlp_not_used(ndlp)) {
3846 /* Indicate node has already been released,
3847 * should not reference to it from within
3848 * the routine lpfc_els_free_iocb.
3850 cmdiocb->context1 = NULL;
3853 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3854 if (!lpfc_error_lost_link(irsp) &&
3855 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
3856 if (lpfc_nlp_not_used(ndlp)) {
3858 /* Indicate node has already been
3859 * released, should not reference
3860 * to it from within the routine
3861 * lpfc_els_free_iocb.
3863 cmdiocb->context1 = NULL;
3867 mp = (struct lpfc_dmabuf *) mbox->context1;
3869 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3872 mempool_free(mbox, phba->mbox_mem_pool);
3875 if (ndlp && NLP_CHK_NODE_ACT(ndlp) && shost) {
3876 spin_lock_irq(shost->host_lock);
3878 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
3879 ndlp->nlp_flag &= ~NLP_RM_DFLT_RPI;
3880 spin_unlock_irq(shost->host_lock);
3882 /* If the node is not being used by another discovery thread,
3883 * and we are sending a reject, we are done with it.
3884 * Release driver reference count here and free associated
3888 if (lpfc_nlp_not_used(ndlp))
3889 /* Indicate node has already been released,
3890 * should not reference to it from within
3891 * the routine lpfc_els_free_iocb.
3893 cmdiocb->context1 = NULL;
3897 lpfc_els_free_iocb(phba, cmdiocb);
3902 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3903 * @vport: pointer to a host virtual N_Port data structure.
3904 * @flag: the els command code to be accepted.
3905 * @oldiocb: pointer to the original lpfc command iocb data structure.
3906 * @ndlp: pointer to a node-list data structure.
3907 * @mbox: pointer to the driver internal queue element for mailbox command.
3909 * This routine prepares and issues an Accept (ACC) response IOCB
3910 * command. It uses the @flag to properly set up the IOCB field for the
3911 * specific ACC response command to be issued and invokes the
3912 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3913 * @mbox pointer is passed in, it will be put into the context_un.mbox
3914 * field of the IOCB for the completion callback function to issue the
3915 * mailbox command to the HBA later when callback is invoked.
3917 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3918 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3919 * will be stored into the context1 field of the IOCB for the completion
3920 * callback function to the corresponding response ELS IOCB command.
3923 * 0 - Successfully issued acc response
3924 * 1 - Failed to issue acc response
3927 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
3928 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
3931 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3932 struct lpfc_hba *phba = vport->phba;
3935 struct lpfc_iocbq *elsiocb;
3937 struct serv_parm *sp;
3940 ELS_PKT *els_pkt_ptr;
3942 oldcmd = &oldiocb->iocb;
3946 cmdsize = sizeof(uint32_t);
3947 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3948 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3950 spin_lock_irq(shost->host_lock);
3951 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
3952 spin_unlock_irq(shost->host_lock);
3956 icmd = &elsiocb->iocb;
3957 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3958 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3959 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3960 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3961 pcmd += sizeof(uint32_t);
3963 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3964 "Issue ACC: did:x%x flg:x%x",
3965 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3969 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
3970 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3971 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3975 icmd = &elsiocb->iocb;
3976 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3977 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3978 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3981 elsiocb->context_un.mbox = mbox;
3983 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3984 pcmd += sizeof(uint32_t);
3985 sp = (struct serv_parm *)pcmd;
3987 if (flag == ELS_CMD_FLOGI) {
3988 /* Copy the received service parameters back */
3989 memcpy(sp, &phba->fc_fabparam,
3990 sizeof(struct serv_parm));
3992 /* Clear the F_Port bit */
3995 /* Mark all class service parameters as invalid */
3996 sp->cls1.classValid = 0;
3997 sp->cls2.classValid = 0;
3998 sp->cls3.classValid = 0;
3999 sp->cls4.classValid = 0;
4001 /* Copy our worldwide names */
4002 memcpy(&sp->portName, &vport->fc_sparam.portName,
4003 sizeof(struct lpfc_name));
4004 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
4005 sizeof(struct lpfc_name));
4007 memcpy(pcmd, &vport->fc_sparam,
4008 sizeof(struct serv_parm));
4010 sp->cmn.valid_vendor_ver_level = 0;
4011 memset(sp->vendorVersion, 0, sizeof(sp->vendorVersion));
4014 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4015 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
4016 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4019 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
4020 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4021 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
4025 icmd = &elsiocb->iocb;
4026 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4027 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4028 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4030 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
4031 sizeof(uint32_t) + sizeof(PRLO));
4032 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
4033 els_pkt_ptr = (ELS_PKT *) pcmd;
4034 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
4036 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4037 "Issue ACC PRLO: did:x%x flg:x%x",
4038 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4043 /* Xmit ELS ACC response tag <ulpIoTag> */
4044 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4045 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4046 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4048 elsiocb->iotag, elsiocb->iocb.ulpContext,
4049 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4050 ndlp->nlp_rpi, vport->fc_flag);
4051 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
4052 spin_lock_irq(shost->host_lock);
4053 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4054 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
4055 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4056 spin_unlock_irq(shost->host_lock);
4057 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
4059 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4062 phba->fc_stat.elsXmitACC++;
4063 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4064 if (rc == IOCB_ERROR) {
4065 lpfc_els_free_iocb(phba, elsiocb);
4072 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4073 * @vport: pointer to a virtual N_Port data structure.
4075 * @oldiocb: pointer to the original lpfc command iocb data structure.
4076 * @ndlp: pointer to a node-list data structure.
4077 * @mbox: pointer to the driver internal queue element for mailbox command.
4079 * This routine prepares and issue an Reject (RJT) response IOCB
4080 * command. If a @mbox pointer is passed in, it will be put into the
4081 * context_un.mbox field of the IOCB for the completion callback function
4082 * to issue to the HBA later.
4084 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4085 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4086 * will be stored into the context1 field of the IOCB for the completion
4087 * callback function to the reject response ELS IOCB command.
4090 * 0 - Successfully issued reject response
4091 * 1 - Failed to issue reject response
4094 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
4095 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4098 struct lpfc_hba *phba = vport->phba;
4101 struct lpfc_iocbq *elsiocb;
4106 cmdsize = 2 * sizeof(uint32_t);
4107 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4108 ndlp->nlp_DID, ELS_CMD_LS_RJT);
4112 icmd = &elsiocb->iocb;
4113 oldcmd = &oldiocb->iocb;
4114 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4115 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4116 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4118 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4119 pcmd += sizeof(uint32_t);
4120 *((uint32_t *) (pcmd)) = rejectError;
4123 elsiocb->context_un.mbox = mbox;
4125 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4126 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4127 "0129 Xmit ELS RJT x%x response tag x%x "
4128 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4130 rejectError, elsiocb->iotag,
4131 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4132 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
4133 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4134 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4135 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4137 phba->fc_stat.elsXmitLSRJT++;
4138 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4139 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4141 if (rc == IOCB_ERROR) {
4142 lpfc_els_free_iocb(phba, elsiocb);
4149 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4150 * @vport: pointer to a virtual N_Port data structure.
4151 * @oldiocb: pointer to the original lpfc command iocb data structure.
4152 * @ndlp: pointer to a node-list data structure.
4154 * This routine prepares and issues an Accept (ACC) response to Address
4155 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4156 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4158 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4159 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4160 * will be stored into the context1 field of the IOCB for the completion
4161 * callback function to the ADISC Accept response ELS IOCB command.
4164 * 0 - Successfully issued acc adisc response
4165 * 1 - Failed to issue adisc acc response
4168 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4169 struct lpfc_nodelist *ndlp)
4171 struct lpfc_hba *phba = vport->phba;
4173 IOCB_t *icmd, *oldcmd;
4174 struct lpfc_iocbq *elsiocb;
4179 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
4180 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4181 ndlp->nlp_DID, ELS_CMD_ACC);
4185 icmd = &elsiocb->iocb;
4186 oldcmd = &oldiocb->iocb;
4187 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4188 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4190 /* Xmit ADISC ACC response tag <ulpIoTag> */
4191 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4192 "0130 Xmit ADISC ACC response iotag x%x xri: "
4193 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4194 elsiocb->iotag, elsiocb->iocb.ulpContext,
4195 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4197 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4199 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4200 pcmd += sizeof(uint32_t);
4202 ap = (ADISC *) (pcmd);
4203 ap->hardAL_PA = phba->fc_pref_ALPA;
4204 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4205 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4206 ap->DID = be32_to_cpu(vport->fc_myDID);
4208 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4209 "Issue ACC ADISC: did:x%x flg:x%x",
4210 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4212 phba->fc_stat.elsXmitACC++;
4213 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4214 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4215 if (rc == IOCB_ERROR) {
4216 lpfc_els_free_iocb(phba, elsiocb);
4223 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4224 * @vport: pointer to a virtual N_Port data structure.
4225 * @oldiocb: pointer to the original lpfc command iocb data structure.
4226 * @ndlp: pointer to a node-list data structure.
4228 * This routine prepares and issues an Accept (ACC) response to Process
4229 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4230 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4232 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4233 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4234 * will be stored into the context1 field of the IOCB for the completion
4235 * callback function to the PRLI Accept response ELS IOCB command.
4238 * 0 - Successfully issued acc prli response
4239 * 1 - Failed to issue acc prli response
4242 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4243 struct lpfc_nodelist *ndlp)
4245 struct lpfc_hba *phba = vport->phba;
4250 struct lpfc_iocbq *elsiocb;
4255 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
4256 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4257 ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
4261 icmd = &elsiocb->iocb;
4262 oldcmd = &oldiocb->iocb;
4263 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4264 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4266 /* Xmit PRLI ACC response tag <ulpIoTag> */
4267 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4268 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4269 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4270 elsiocb->iotag, elsiocb->iocb.ulpContext,
4271 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4273 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4275 *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
4276 pcmd += sizeof(uint32_t);
4278 /* For PRLI, remainder of payload is PRLI parameter page */
4279 memset(pcmd, 0, sizeof(PRLI));
4281 npr = (PRLI *) pcmd;
4284 * If the remote port is a target and our firmware version is 3.20 or
4285 * later, set the following bits for FC-TAPE support.
4287 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4288 (vpd->rev.feaLevelHigh >= 0x02)) {
4289 npr->ConfmComplAllowed = 1;
4291 npr->TaskRetryIdReq = 1;
4294 npr->acceptRspCode = PRLI_REQ_EXECUTED;
4295 npr->estabImagePair = 1;
4296 npr->readXferRdyDis = 1;
4297 npr->ConfmComplAllowed = 1;
4299 npr->prliType = PRLI_FCP_TYPE;
4300 npr->initiatorFunc = 1;
4302 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4303 "Issue ACC PRLI: did:x%x flg:x%x",
4304 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4306 phba->fc_stat.elsXmitACC++;
4307 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4309 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4310 if (rc == IOCB_ERROR) {
4311 lpfc_els_free_iocb(phba, elsiocb);
4318 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4319 * @vport: pointer to a virtual N_Port data structure.
4320 * @format: rnid command format.
4321 * @oldiocb: pointer to the original lpfc command iocb data structure.
4322 * @ndlp: pointer to a node-list data structure.
4324 * This routine issues a Request Node Identification Data (RNID) Accept
4325 * (ACC) response. It constructs the RNID ACC response command according to
4326 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4327 * issue the response. Note that this command does not need to hold the ndlp
4328 * reference count for the callback. So, the ndlp reference count taken by
4329 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4330 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4331 * there is no ndlp reference available.
4333 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4334 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4335 * will be stored into the context1 field of the IOCB for the completion
4336 * callback function. However, for the RNID Accept Response ELS command,
4337 * this is undone later by this routine after the IOCB is allocated.
4340 * 0 - Successfully issued acc rnid response
4341 * 1 - Failed to issue acc rnid response
4344 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
4345 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4347 struct lpfc_hba *phba = vport->phba;
4349 IOCB_t *icmd, *oldcmd;
4350 struct lpfc_iocbq *elsiocb;
4355 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
4356 + (2 * sizeof(struct lpfc_name));
4358 cmdsize += sizeof(RNID_TOP_DISC);
4360 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4361 ndlp->nlp_DID, ELS_CMD_ACC);
4365 icmd = &elsiocb->iocb;
4366 oldcmd = &oldiocb->iocb;
4367 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4368 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4370 /* Xmit RNID ACC response tag <ulpIoTag> */
4371 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4372 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4373 elsiocb->iotag, elsiocb->iocb.ulpContext);
4374 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4375 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4376 pcmd += sizeof(uint32_t);
4378 memset(pcmd, 0, sizeof(RNID));
4379 rn = (RNID *) (pcmd);
4380 rn->Format = format;
4381 rn->CommonLen = (2 * sizeof(struct lpfc_name));
4382 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4383 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4386 rn->SpecificLen = 0;
4388 case RNID_TOPOLOGY_DISC:
4389 rn->SpecificLen = sizeof(RNID_TOP_DISC);
4390 memcpy(&rn->un.topologyDisc.portName,
4391 &vport->fc_portname, sizeof(struct lpfc_name));
4392 rn->un.topologyDisc.unitType = RNID_HBA;
4393 rn->un.topologyDisc.physPort = 0;
4394 rn->un.topologyDisc.attachedNodes = 0;
4398 rn->SpecificLen = 0;
4402 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4403 "Issue ACC RNID: did:x%x flg:x%x",
4404 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4406 phba->fc_stat.elsXmitACC++;
4407 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4409 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4410 if (rc == IOCB_ERROR) {
4411 lpfc_els_free_iocb(phba, elsiocb);
4418 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4419 * @vport: pointer to a virtual N_Port data structure.
4420 * @iocb: pointer to the lpfc command iocb data structure.
4421 * @ndlp: pointer to a node-list data structure.
4426 lpfc_els_clear_rrq(struct lpfc_vport *vport,
4427 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
4429 struct lpfc_hba *phba = vport->phba;
4434 struct lpfc_node_rrq *prrq;
4437 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
4438 pcmd += sizeof(uint32_t);
4439 rrq = (struct RRQ *)pcmd;
4440 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
4441 rxid = bf_get(rrq_rxid, rrq);
4443 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4444 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4446 be32_to_cpu(bf_get(rrq_did, rrq)),
4447 bf_get(rrq_oxid, rrq),
4449 iocb->iotag, iocb->iocb.ulpContext);
4451 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4452 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4453 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
4454 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
4455 xri = bf_get(rrq_oxid, rrq);
4458 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
4460 lpfc_clr_rrq_active(phba, xri, prrq);
4465 * lpfc_els_rsp_echo_acc - Issue echo acc response
4466 * @vport: pointer to a virtual N_Port data structure.
4467 * @data: pointer to echo data to return in the accept.
4468 * @oldiocb: pointer to the original lpfc command iocb data structure.
4469 * @ndlp: pointer to a node-list data structure.
4472 * 0 - Successfully issued acc echo response
4473 * 1 - Failed to issue acc echo response
4476 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
4477 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4479 struct lpfc_hba *phba = vport->phba;
4480 struct lpfc_iocbq *elsiocb;
4485 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
4487 /* The accumulated length can exceed the BPL_SIZE. For
4488 * now, use this as the limit
4490 if (cmdsize > LPFC_BPL_SIZE)
4491 cmdsize = LPFC_BPL_SIZE;
4492 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4493 ndlp->nlp_DID, ELS_CMD_ACC);
4497 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
4498 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
4500 /* Xmit ECHO ACC response tag <ulpIoTag> */
4501 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4502 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4503 elsiocb->iotag, elsiocb->iocb.ulpContext);
4504 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4505 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4506 pcmd += sizeof(uint32_t);
4507 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
4509 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4510 "Issue ACC ECHO: did:x%x flg:x%x",
4511 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4513 phba->fc_stat.elsXmitACC++;
4514 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4516 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4517 if (rc == IOCB_ERROR) {
4518 lpfc_els_free_iocb(phba, elsiocb);
4525 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4526 * @vport: pointer to a host virtual N_Port data structure.
4528 * This routine issues Address Discover (ADISC) ELS commands to those
4529 * N_Ports which are in node port recovery state and ADISC has not been issued
4530 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4531 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4532 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4533 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4534 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4535 * IOCBs quit for later pick up. On the other hand, after walking through
4536 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4537 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4538 * no more ADISC need to be sent.
4541 * The number of N_Ports with adisc issued.
4544 lpfc_els_disc_adisc(struct lpfc_vport *vport)
4546 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4547 struct lpfc_nodelist *ndlp, *next_ndlp;
4550 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4551 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4552 if (!NLP_CHK_NODE_ACT(ndlp))
4554 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4555 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4556 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
4557 spin_lock_irq(shost->host_lock);
4558 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4559 spin_unlock_irq(shost->host_lock);
4560 ndlp->nlp_prev_state = ndlp->nlp_state;
4561 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4562 lpfc_issue_els_adisc(vport, ndlp, 0);
4564 vport->num_disc_nodes++;
4565 if (vport->num_disc_nodes >=
4566 vport->cfg_discovery_threads) {
4567 spin_lock_irq(shost->host_lock);
4568 vport->fc_flag |= FC_NLP_MORE;
4569 spin_unlock_irq(shost->host_lock);
4574 if (sentadisc == 0) {
4575 spin_lock_irq(shost->host_lock);
4576 vport->fc_flag &= ~FC_NLP_MORE;
4577 spin_unlock_irq(shost->host_lock);
4583 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4584 * @vport: pointer to a host virtual N_Port data structure.
4586 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4587 * which are in node port recovery state, with a @vport. Each time an ELS
4588 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4589 * the per @vport number of discover count (num_disc_nodes) shall be
4590 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4591 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4592 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4593 * later pick up. On the other hand, after walking through all the ndlps with
4594 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4595 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4596 * PLOGI need to be sent.
4599 * The number of N_Ports with plogi issued.
4602 lpfc_els_disc_plogi(struct lpfc_vport *vport)
4604 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4605 struct lpfc_nodelist *ndlp, *next_ndlp;
4608 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4609 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4610 if (!NLP_CHK_NODE_ACT(ndlp))
4612 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4613 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4614 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
4615 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
4616 ndlp->nlp_prev_state = ndlp->nlp_state;
4617 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4618 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4620 vport->num_disc_nodes++;
4621 if (vport->num_disc_nodes >=
4622 vport->cfg_discovery_threads) {
4623 spin_lock_irq(shost->host_lock);
4624 vport->fc_flag |= FC_NLP_MORE;
4625 spin_unlock_irq(shost->host_lock);
4631 lpfc_set_disctmo(vport);
4634 spin_lock_irq(shost->host_lock);
4635 vport->fc_flag &= ~FC_NLP_MORE;
4636 spin_unlock_irq(shost->host_lock);
4642 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
4646 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
4647 desc->payload.els_req = word0;
4648 desc->length = cpu_to_be32(sizeof(desc->payload));
4650 return sizeof(struct fc_rdp_link_service_desc);
4654 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
4655 uint8_t *page_a0, uint8_t *page_a2)
4657 uint16_t wavelength;
4658 uint16_t temperature;
4664 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
4665 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
4667 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
4669 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
4670 &page_a0[SSF_TRANSCEIVER_CODE_B4];
4671 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
4672 &page_a0[SSF_TRANSCEIVER_CODE_B5];
4674 if ((trasn_code_byte4->fc_sw_laser) ||
4675 (trasn_code_byte5->fc_sw_laser_sl) ||
4676 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
4677 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
4678 } else if (trasn_code_byte4->fc_lw_laser) {
4679 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
4680 page_a0[SSF_WAVELENGTH_B0];
4681 if (wavelength == SFP_WAVELENGTH_LC1310)
4682 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
4683 if (wavelength == SFP_WAVELENGTH_LL1550)
4684 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
4686 /* check if its SFP+ */
4687 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
4688 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
4689 << SFP_FLAG_CT_SHIFT;
4691 /* check if its OPTICAL */
4692 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
4693 SFP_FLAG_IS_OPTICAL_PORT : 0)
4694 << SFP_FLAG_IS_OPTICAL_SHIFT;
4696 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
4697 page_a2[SFF_TEMPERATURE_B0]);
4698 vcc = (page_a2[SFF_VCC_B1] << 8 |
4699 page_a2[SFF_VCC_B0]);
4700 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
4701 page_a2[SFF_TXPOWER_B0]);
4702 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
4703 page_a2[SFF_TX_BIAS_CURRENT_B0]);
4704 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
4705 page_a2[SFF_RXPOWER_B0]);
4706 desc->sfp_info.temperature = cpu_to_be16(temperature);
4707 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
4708 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
4709 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
4710 desc->sfp_info.vcc = cpu_to_be16(vcc);
4712 desc->sfp_info.flags = cpu_to_be16(flag);
4713 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
4715 return sizeof(struct fc_rdp_sfp_desc);
4719 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
4724 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
4726 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
4728 desc->info.port_type = cpu_to_be32(type);
4730 desc->info.link_status.link_failure_cnt =
4731 cpu_to_be32(stat->linkFailureCnt);
4732 desc->info.link_status.loss_of_synch_cnt =
4733 cpu_to_be32(stat->lossSyncCnt);
4734 desc->info.link_status.loss_of_signal_cnt =
4735 cpu_to_be32(stat->lossSignalCnt);
4736 desc->info.link_status.primitive_seq_proto_err =
4737 cpu_to_be32(stat->primSeqErrCnt);
4738 desc->info.link_status.invalid_trans_word =
4739 cpu_to_be32(stat->invalidXmitWord);
4740 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
4742 desc->length = cpu_to_be32(sizeof(desc->info));
4744 return sizeof(struct fc_rdp_link_error_status_desc);
4748 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
4749 struct lpfc_vport *vport)
4753 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
4755 bbCredit = vport->fc_sparam.cmn.bbCreditLsb |
4756 (vport->fc_sparam.cmn.bbCreditMsb << 8);
4757 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit);
4758 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
4759 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb |
4760 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8);
4761 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit);
4763 desc->bbc_info.attached_port_bbc = 0;
4766 desc->bbc_info.rtt = 0;
4767 desc->length = cpu_to_be32(sizeof(desc->bbc_info));
4769 return sizeof(struct fc_rdp_bbc_desc);
4773 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
4774 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
4778 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4780 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM];
4781 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM];
4782 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING];
4783 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING];
4785 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4786 flags |= RDP_OET_HIGH_ALARM;
4787 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4788 flags |= RDP_OET_LOW_ALARM;
4789 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4790 flags |= RDP_OET_HIGH_WARNING;
4791 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4792 flags |= RDP_OET_LOW_WARNING;
4794 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
4795 desc->oed_info.function_flags = cpu_to_be32(flags);
4796 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4797 return sizeof(struct fc_rdp_oed_sfp_desc);
4801 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
4802 struct fc_rdp_oed_sfp_desc *desc,
4807 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4809 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM];
4810 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM];
4811 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING];
4812 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING];
4814 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
4815 flags |= RDP_OET_HIGH_ALARM;
4816 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE)
4817 flags |= RDP_OET_LOW_ALARM;
4818 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
4819 flags |= RDP_OET_HIGH_WARNING;
4820 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE)
4821 flags |= RDP_OET_LOW_WARNING;
4823 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
4824 desc->oed_info.function_flags = cpu_to_be32(flags);
4825 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4826 return sizeof(struct fc_rdp_oed_sfp_desc);
4830 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
4831 struct fc_rdp_oed_sfp_desc *desc,
4836 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4838 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM];
4839 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM];
4840 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING];
4841 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING];
4843 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS)
4844 flags |= RDP_OET_HIGH_ALARM;
4845 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS)
4846 flags |= RDP_OET_LOW_ALARM;
4847 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS)
4848 flags |= RDP_OET_HIGH_WARNING;
4849 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS)
4850 flags |= RDP_OET_LOW_WARNING;
4852 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
4853 desc->oed_info.function_flags = cpu_to_be32(flags);
4854 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4855 return sizeof(struct fc_rdp_oed_sfp_desc);
4859 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
4860 struct fc_rdp_oed_sfp_desc *desc,
4865 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4867 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM];
4868 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM];
4869 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING];
4870 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING];
4872 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER)
4873 flags |= RDP_OET_HIGH_ALARM;
4874 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER)
4875 flags |= RDP_OET_LOW_ALARM;
4876 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER)
4877 flags |= RDP_OET_HIGH_WARNING;
4878 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER)
4879 flags |= RDP_OET_LOW_WARNING;
4881 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
4882 desc->oed_info.function_flags = cpu_to_be32(flags);
4883 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4884 return sizeof(struct fc_rdp_oed_sfp_desc);
4889 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
4890 struct fc_rdp_oed_sfp_desc *desc,
4895 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4897 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM];
4898 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM];
4899 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING];
4900 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING];
4902 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER)
4903 flags |= RDP_OET_HIGH_ALARM;
4904 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER)
4905 flags |= RDP_OET_LOW_ALARM;
4906 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER)
4907 flags |= RDP_OET_HIGH_WARNING;
4908 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER)
4909 flags |= RDP_OET_LOW_WARNING;
4911 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
4912 desc->oed_info.function_flags = cpu_to_be32(flags);
4913 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4914 return sizeof(struct fc_rdp_oed_sfp_desc);
4918 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
4919 uint8_t *page_a0, struct lpfc_vport *vport)
4921 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
4922 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
4923 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
4924 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
4925 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 2);
4926 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
4927 desc->length = cpu_to_be32(sizeof(desc->opd_info));
4928 return sizeof(struct fc_rdp_opd_sfp_desc);
4932 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
4934 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
4936 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
4938 desc->info.CorrectedBlocks =
4939 cpu_to_be32(stat->fecCorrBlkCount);
4940 desc->info.UncorrectableBlocks =
4941 cpu_to_be32(stat->fecUncorrBlkCount);
4943 desc->length = cpu_to_be32(sizeof(desc->info));
4945 return sizeof(struct fc_fec_rdp_desc);
4949 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
4951 uint16_t rdp_cap = 0;
4954 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
4956 switch (phba->fc_linkspeed) {
4957 case LPFC_LINK_SPEED_1GHZ:
4958 rdp_speed = RDP_PS_1GB;
4960 case LPFC_LINK_SPEED_2GHZ:
4961 rdp_speed = RDP_PS_2GB;
4963 case LPFC_LINK_SPEED_4GHZ:
4964 rdp_speed = RDP_PS_4GB;
4966 case LPFC_LINK_SPEED_8GHZ:
4967 rdp_speed = RDP_PS_8GB;
4969 case LPFC_LINK_SPEED_10GHZ:
4970 rdp_speed = RDP_PS_10GB;
4972 case LPFC_LINK_SPEED_16GHZ:
4973 rdp_speed = RDP_PS_16GB;
4975 case LPFC_LINK_SPEED_32GHZ:
4976 rdp_speed = RDP_PS_32GB;
4979 rdp_speed = RDP_PS_UNKNOWN;
4983 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
4985 if (phba->lmt & LMT_32Gb)
4986 rdp_cap |= RDP_PS_32GB;
4987 if (phba->lmt & LMT_16Gb)
4988 rdp_cap |= RDP_PS_16GB;
4989 if (phba->lmt & LMT_10Gb)
4990 rdp_cap |= RDP_PS_10GB;
4991 if (phba->lmt & LMT_8Gb)
4992 rdp_cap |= RDP_PS_8GB;
4993 if (phba->lmt & LMT_4Gb)
4994 rdp_cap |= RDP_PS_4GB;
4995 if (phba->lmt & LMT_2Gb)
4996 rdp_cap |= RDP_PS_2GB;
4997 if (phba->lmt & LMT_1Gb)
4998 rdp_cap |= RDP_PS_1GB;
5001 rdp_cap = RDP_CAP_UNKNOWN;
5002 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
5003 rdp_cap |= RDP_CAP_USER_CONFIGURED;
5005 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
5006 desc->length = cpu_to_be32(sizeof(desc->info));
5007 return sizeof(struct fc_rdp_port_speed_desc);
5011 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
5012 struct lpfc_hba *phba)
5015 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5017 memcpy(desc->port_names.wwnn, phba->wwnn,
5018 sizeof(desc->port_names.wwnn));
5020 memcpy(desc->port_names.wwpn, &phba->wwpn,
5021 sizeof(desc->port_names.wwpn));
5023 desc->length = cpu_to_be32(sizeof(desc->port_names));
5024 return sizeof(struct fc_rdp_port_name_desc);
5028 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
5029 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5032 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5033 if (vport->fc_flag & FC_FABRIC) {
5034 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
5035 sizeof(desc->port_names.wwnn));
5037 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
5038 sizeof(desc->port_names.wwpn));
5039 } else { /* Point to Point */
5040 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
5041 sizeof(desc->port_names.wwnn));
5043 memcpy(desc->port_names.wwnn, &ndlp->nlp_portname,
5044 sizeof(desc->port_names.wwpn));
5047 desc->length = cpu_to_be32(sizeof(desc->port_names));
5048 return sizeof(struct fc_rdp_port_name_desc);
5052 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
5055 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
5056 struct lpfc_vport *vport = ndlp->vport;
5057 struct lpfc_iocbq *elsiocb;
5058 struct ulp_bde64 *bpl;
5061 struct ls_rjt *stat;
5062 struct fc_rdp_res_frame *rdp_res;
5063 uint32_t cmdsize, len;
5067 if (status != SUCCESS)
5070 /* This will change once we know the true size of the RDP payload */
5071 cmdsize = sizeof(struct fc_rdp_res_frame);
5073 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
5074 lpfc_max_els_tries, rdp_context->ndlp,
5075 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
5078 goto free_rdp_context;
5080 icmd = &elsiocb->iocb;
5081 icmd->ulpContext = rdp_context->rx_id;
5082 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5084 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5085 "2171 Xmit RDP response tag x%x xri x%x, "
5086 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
5087 elsiocb->iotag, elsiocb->iocb.ulpContext,
5088 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5090 rdp_res = (struct fc_rdp_res_frame *)
5091 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5092 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5093 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
5094 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5096 /* Update Alarm and Warning */
5097 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS);
5098 phba->sfp_alarm |= *flag_ptr;
5099 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS);
5100 phba->sfp_warning |= *flag_ptr;
5102 /* For RDP payload */
5104 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
5105 (len + pcmd), ELS_CMD_RDP);
5107 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
5108 rdp_context->page_a0, rdp_context->page_a2);
5109 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
5111 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
5112 (len + pcmd), &rdp_context->link_stat);
5113 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
5114 (len + pcmd), phba);
5115 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
5116 (len + pcmd), vport, ndlp);
5117 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
5118 &rdp_context->link_stat);
5119 /* Check if nport is logged, BZ190632 */
5120 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
5121 goto lpfc_skip_descriptor;
5123 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
5124 &rdp_context->link_stat, vport);
5125 len += lpfc_rdp_res_oed_temp_desc(phba,
5126 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5127 rdp_context->page_a2);
5128 len += lpfc_rdp_res_oed_voltage_desc(phba,
5129 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5130 rdp_context->page_a2);
5131 len += lpfc_rdp_res_oed_txbias_desc(phba,
5132 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5133 rdp_context->page_a2);
5134 len += lpfc_rdp_res_oed_txpower_desc(phba,
5135 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5136 rdp_context->page_a2);
5137 len += lpfc_rdp_res_oed_rxpower_desc(phba,
5138 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5139 rdp_context->page_a2);
5140 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
5141 rdp_context->page_a0, vport);
5143 lpfc_skip_descriptor:
5144 rdp_res->length = cpu_to_be32(len - 8);
5145 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5147 /* Now that we know the true size of the payload, update the BPL */
5148 bpl = (struct ulp_bde64 *)
5149 (((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
5150 bpl->tus.f.bdeSize = len;
5151 bpl->tus.f.bdeFlags = 0;
5152 bpl->tus.w = le32_to_cpu(bpl->tus.w);
5154 phba->fc_stat.elsXmitACC++;
5155 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5156 if (rc == IOCB_ERROR)
5157 lpfc_els_free_iocb(phba, elsiocb);
5163 cmdsize = 2 * sizeof(uint32_t);
5164 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
5165 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
5168 goto free_rdp_context;
5170 icmd = &elsiocb->iocb;
5171 icmd->ulpContext = rdp_context->rx_id;
5172 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5173 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5175 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
5176 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5177 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5179 phba->fc_stat.elsXmitLSRJT++;
5180 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5181 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5183 if (rc == IOCB_ERROR)
5184 lpfc_els_free_iocb(phba, elsiocb);
5190 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
5192 LPFC_MBOXQ_t *mbox = NULL;
5195 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5197 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
5198 "7105 failed to allocate mailbox memory");
5202 if (lpfc_sli4_dump_page_a0(phba, mbox))
5203 goto prep_mbox_fail;
5204 mbox->vport = rdp_context->ndlp->vport;
5205 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
5206 mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
5207 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5208 if (rc == MBX_NOT_FINISHED)
5209 goto issue_mbox_fail;
5215 mempool_free(mbox, phba->mbox_mem_pool);
5220 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
5221 * @vport: pointer to a host virtual N_Port data structure.
5222 * @cmdiocb: pointer to lpfc command iocb data structure.
5223 * @ndlp: pointer to a node-list data structure.
5225 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
5226 * IOCB. First, the payload of the unsolicited RDP is checked.
5227 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
5228 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
5229 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
5230 * gather all data and send RDP response.
5233 * 0 - Sent the acc response
5234 * 1 - Sent the reject response.
5237 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5238 struct lpfc_nodelist *ndlp)
5240 struct lpfc_hba *phba = vport->phba;
5241 struct lpfc_dmabuf *pcmd;
5242 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
5243 struct fc_rdp_req_frame *rdp_req;
5244 struct lpfc_rdp_context *rdp_context;
5248 if (phba->sli_rev < LPFC_SLI_REV4 ||
5249 (bf_get(lpfc_sli_intf_if_type,
5250 &phba->sli4_hba.sli_intf) !=
5251 LPFC_SLI_INTF_IF_TYPE_2)) {
5252 rjt_err = LSRJT_UNABLE_TPC;
5253 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5257 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
5258 rjt_err = LSRJT_UNABLE_TPC;
5259 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5263 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5264 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
5267 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5268 "2422 ELS RDP Request "
5269 "dec len %d tag x%x port_id %d len %d\n",
5270 be32_to_cpu(rdp_req->rdp_des_length),
5271 be32_to_cpu(rdp_req->nport_id_desc.tag),
5272 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
5273 be32_to_cpu(rdp_req->nport_id_desc.length));
5275 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) &&
5276 !phba->cfg_enable_SmartSAN) {
5277 rjt_err = LSRJT_UNABLE_TPC;
5278 rjt_expl = LSEXP_PORT_LOGIN_REQ;
5281 if (sizeof(struct fc_rdp_nport_desc) !=
5282 be32_to_cpu(rdp_req->rdp_des_length))
5284 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
5286 if (RDP_NPORT_ID_SIZE !=
5287 be32_to_cpu(rdp_req->nport_id_desc.length))
5289 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
5291 rjt_err = LSRJT_UNABLE_TPC;
5295 cmd = &cmdiocb->iocb;
5296 rdp_context->ndlp = lpfc_nlp_get(ndlp);
5297 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
5298 rdp_context->rx_id = cmd->ulpContext;
5299 rdp_context->cmpl = lpfc_els_rdp_cmpl;
5300 if (lpfc_get_rdp_info(phba, rdp_context)) {
5301 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
5302 "2423 Unable to send mailbox");
5304 rjt_err = LSRJT_UNABLE_TPC;
5312 rjt_err = LSRJT_LOGICAL_ERR;
5315 memset(&stat, 0, sizeof(stat));
5316 stat.un.b.lsRjtRsnCode = rjt_err;
5317 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
5318 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5324 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5329 struct lpfc_iocbq *elsiocb;
5330 struct lpfc_nodelist *ndlp;
5331 struct ls_rjt *stat;
5332 union lpfc_sli4_cfg_shdr *shdr;
5333 struct lpfc_lcb_context *lcb_context;
5334 struct fc_lcb_res_frame *lcb_res;
5335 uint32_t cmdsize, shdr_status, shdr_add_status;
5339 lcb_context = (struct lpfc_lcb_context *)pmb->context1;
5340 ndlp = lcb_context->ndlp;
5341 pmb->context1 = NULL;
5342 pmb->context2 = NULL;
5344 shdr = (union lpfc_sli4_cfg_shdr *)
5345 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
5346 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5347 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5349 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
5350 "0194 SET_BEACON_CONFIG mailbox "
5351 "completed with status x%x add_status x%x,"
5352 " mbx status x%x\n",
5353 shdr_status, shdr_add_status, mb->mbxStatus);
5355 if (mb->mbxStatus && !(shdr_status &&
5356 shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)) {
5357 mempool_free(pmb, phba->mbox_mem_pool);
5361 mempool_free(pmb, phba->mbox_mem_pool);
5362 cmdsize = sizeof(struct fc_lcb_res_frame);
5363 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5364 lpfc_max_els_tries, ndlp,
5365 ndlp->nlp_DID, ELS_CMD_ACC);
5367 /* Decrement the ndlp reference count from previous mbox command */
5371 goto free_lcb_context;
5373 lcb_res = (struct fc_lcb_res_frame *)
5374 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5376 icmd = &elsiocb->iocb;
5377 icmd->ulpContext = lcb_context->rx_id;
5378 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5380 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5381 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
5382 lcb_res->lcb_sub_command = lcb_context->sub_command;
5383 lcb_res->lcb_type = lcb_context->type;
5384 lcb_res->lcb_frequency = lcb_context->frequency;
5385 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5386 phba->fc_stat.elsXmitACC++;
5387 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5388 if (rc == IOCB_ERROR)
5389 lpfc_els_free_iocb(phba, elsiocb);
5395 cmdsize = sizeof(struct fc_lcb_res_frame);
5396 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5397 lpfc_max_els_tries, ndlp,
5398 ndlp->nlp_DID, ELS_CMD_LS_RJT);
5401 goto free_lcb_context;
5403 icmd = &elsiocb->iocb;
5404 icmd->ulpContext = lcb_context->rx_id;
5405 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5406 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5408 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
5409 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5410 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5412 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)
5413 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
5415 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5416 phba->fc_stat.elsXmitLSRJT++;
5417 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5418 if (rc == IOCB_ERROR)
5419 lpfc_els_free_iocb(phba, elsiocb);
5425 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
5426 struct lpfc_lcb_context *lcb_context,
5427 uint32_t beacon_state)
5429 struct lpfc_hba *phba = vport->phba;
5430 LPFC_MBOXQ_t *mbox = NULL;
5434 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5438 len = sizeof(struct lpfc_mbx_set_beacon_config) -
5439 sizeof(struct lpfc_sli4_cfg_mhdr);
5440 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5441 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
5442 LPFC_SLI4_MBX_EMBED);
5443 mbox->context1 = (void *)lcb_context;
5444 mbox->vport = phba->pport;
5445 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
5446 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
5447 phba->sli4_hba.physical_port);
5448 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
5450 bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1);
5451 bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0);
5452 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5453 if (rc == MBX_NOT_FINISHED) {
5454 mempool_free(mbox, phba->mbox_mem_pool);
5463 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5464 * @vport: pointer to a host virtual N_Port data structure.
5465 * @cmdiocb: pointer to lpfc command iocb data structure.
5466 * @ndlp: pointer to a node-list data structure.
5468 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5469 * First, the payload of the unsolicited LCB is checked.
5470 * Then based on Subcommand beacon will either turn on or off.
5473 * 0 - Sent the acc response
5474 * 1 - Sent the reject response.
5477 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5478 struct lpfc_nodelist *ndlp)
5480 struct lpfc_hba *phba = vport->phba;
5481 struct lpfc_dmabuf *pcmd;
5483 struct fc_lcb_request_frame *beacon;
5484 struct lpfc_lcb_context *lcb_context;
5485 uint8_t state, rjt_err;
5488 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
5489 lp = (uint8_t *)pcmd->virt;
5490 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
5492 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5493 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5494 "type x%x frequency %x duration x%x\n",
5495 lp[0], lp[1], lp[2],
5496 beacon->lcb_command,
5497 beacon->lcb_sub_command,
5499 beacon->lcb_frequency,
5500 be16_to_cpu(beacon->lcb_duration));
5502 if (phba->sli_rev < LPFC_SLI_REV4 ||
5503 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5504 LPFC_SLI_INTF_IF_TYPE_2)) {
5505 rjt_err = LSRJT_CMD_UNSUPPORTED;
5509 if (phba->hba_flag & HBA_FCOE_MODE) {
5510 rjt_err = LSRJT_CMD_UNSUPPORTED;
5513 if (beacon->lcb_frequency == 0) {
5514 rjt_err = LSRJT_CMD_UNSUPPORTED;
5517 if ((beacon->lcb_type != LPFC_LCB_GREEN) &&
5518 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5519 rjt_err = LSRJT_CMD_UNSUPPORTED;
5522 if ((beacon->lcb_sub_command != LPFC_LCB_ON) &&
5523 (beacon->lcb_sub_command != LPFC_LCB_OFF)) {
5524 rjt_err = LSRJT_CMD_UNSUPPORTED;
5527 if ((beacon->lcb_sub_command == LPFC_LCB_ON) &&
5528 (beacon->lcb_type != LPFC_LCB_GREEN) &&
5529 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5530 rjt_err = LSRJT_CMD_UNSUPPORTED;
5533 if (be16_to_cpu(beacon->lcb_duration) != 0) {
5534 rjt_err = LSRJT_CMD_UNSUPPORTED;
5538 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
5540 rjt_err = LSRJT_UNABLE_TPC;
5544 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
5545 lcb_context->sub_command = beacon->lcb_sub_command;
5546 lcb_context->type = beacon->lcb_type;
5547 lcb_context->frequency = beacon->lcb_frequency;
5548 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
5549 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
5550 lcb_context->ndlp = lpfc_nlp_get(ndlp);
5551 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
5552 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
5553 LOG_ELS, "0193 failed to send mail box");
5556 rjt_err = LSRJT_UNABLE_TPC;
5561 memset(&stat, 0, sizeof(stat));
5562 stat.un.b.lsRjtRsnCode = rjt_err;
5563 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5569 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5570 * @vport: pointer to a host virtual N_Port data structure.
5572 * This routine cleans up any Registration State Change Notification
5573 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5574 * @vport together with the host_lock is used to prevent multiple thread
5575 * trying to access the RSCN array on a same @vport at the same time.
5578 lpfc_els_flush_rscn(struct lpfc_vport *vport)
5580 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5581 struct lpfc_hba *phba = vport->phba;
5584 spin_lock_irq(shost->host_lock);
5585 if (vport->fc_rscn_flush) {
5586 /* Another thread is walking fc_rscn_id_list on this vport */
5587 spin_unlock_irq(shost->host_lock);
5590 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5591 vport->fc_rscn_flush = 1;
5592 spin_unlock_irq(shost->host_lock);
5594 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5595 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
5596 vport->fc_rscn_id_list[i] = NULL;
5598 spin_lock_irq(shost->host_lock);
5599 vport->fc_rscn_id_cnt = 0;
5600 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
5601 spin_unlock_irq(shost->host_lock);
5602 lpfc_can_disctmo(vport);
5603 /* Indicate we are done walking this fc_rscn_id_list */
5604 vport->fc_rscn_flush = 0;
5608 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5609 * @vport: pointer to a host virtual N_Port data structure.
5610 * @did: remote destination port identifier.
5612 * This routine checks whether there is any pending Registration State
5613 * Configuration Notification (RSCN) to a @did on @vport.
5616 * None zero - The @did matched with a pending rscn
5617 * 0 - not able to match @did with a pending rscn
5620 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
5625 uint32_t payload_len, i;
5626 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5628 ns_did.un.word = did;
5630 /* Never match fabric nodes for RSCNs */
5631 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
5634 /* If we are doing a FULL RSCN rediscovery, match everything */
5635 if (vport->fc_flag & FC_RSCN_DISCOVERY)
5638 spin_lock_irq(shost->host_lock);
5639 if (vport->fc_rscn_flush) {
5640 /* Another thread is walking fc_rscn_id_list on this vport */
5641 spin_unlock_irq(shost->host_lock);
5644 /* Indicate we are walking fc_rscn_id_list on this vport */
5645 vport->fc_rscn_flush = 1;
5646 spin_unlock_irq(shost->host_lock);
5647 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5648 lp = vport->fc_rscn_id_list[i]->virt;
5649 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5650 payload_len -= sizeof(uint32_t); /* take off word 0 */
5651 while (payload_len) {
5652 rscn_did.un.word = be32_to_cpu(*lp++);
5653 payload_len -= sizeof(uint32_t);
5654 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
5655 case RSCN_ADDRESS_FORMAT_PORT:
5656 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5657 && (ns_did.un.b.area == rscn_did.un.b.area)
5658 && (ns_did.un.b.id == rscn_did.un.b.id))
5659 goto return_did_out;
5661 case RSCN_ADDRESS_FORMAT_AREA:
5662 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5663 && (ns_did.un.b.area == rscn_did.un.b.area))
5664 goto return_did_out;
5666 case RSCN_ADDRESS_FORMAT_DOMAIN:
5667 if (ns_did.un.b.domain == rscn_did.un.b.domain)
5668 goto return_did_out;
5670 case RSCN_ADDRESS_FORMAT_FABRIC:
5671 goto return_did_out;
5675 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5676 vport->fc_rscn_flush = 0;
5679 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5680 vport->fc_rscn_flush = 0;
5685 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5686 * @vport: pointer to a host virtual N_Port data structure.
5688 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5689 * state machine for a @vport's nodes that are with pending RSCN (Registration
5690 * State Change Notification).
5693 * 0 - Successful (currently alway return 0)
5696 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
5698 struct lpfc_nodelist *ndlp = NULL;
5700 /* Move all affected nodes by pending RSCNs to NPR state. */
5701 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5702 if (!NLP_CHK_NODE_ACT(ndlp) ||
5703 (ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
5704 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
5706 lpfc_disc_state_machine(vport, ndlp, NULL,
5707 NLP_EVT_DEVICE_RECOVERY);
5708 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5714 * lpfc_send_rscn_event - Send an RSCN event to management application
5715 * @vport: pointer to a host virtual N_Port data structure.
5716 * @cmdiocb: pointer to lpfc command iocb data structure.
5718 * lpfc_send_rscn_event sends an RSCN netlink event to management
5722 lpfc_send_rscn_event(struct lpfc_vport *vport,
5723 struct lpfc_iocbq *cmdiocb)
5725 struct lpfc_dmabuf *pcmd;
5726 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5727 uint32_t *payload_ptr;
5728 uint32_t payload_len;
5729 struct lpfc_rscn_event_header *rscn_event_data;
5731 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5732 payload_ptr = (uint32_t *) pcmd->virt;
5733 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
5735 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
5736 payload_len, GFP_KERNEL);
5737 if (!rscn_event_data) {
5738 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5739 "0147 Failed to allocate memory for RSCN event\n");
5742 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
5743 rscn_event_data->payload_length = payload_len;
5744 memcpy(rscn_event_data->rscn_payload, payload_ptr,
5747 fc_host_post_vendor_event(shost,
5748 fc_get_event_number(),
5749 sizeof(struct lpfc_rscn_event_header) + payload_len,
5750 (char *)rscn_event_data,
5753 kfree(rscn_event_data);
5757 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5758 * @vport: pointer to a host virtual N_Port data structure.
5759 * @cmdiocb: pointer to lpfc command iocb data structure.
5760 * @ndlp: pointer to a node-list data structure.
5762 * This routine processes an unsolicited RSCN (Registration State Change
5763 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5764 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5765 * discover state machine is about to begin discovery, it just accepts the
5766 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5767 * contains N_Port IDs for other vports on this HBA, it just accepts the
5768 * RSCN and ignore processing it. If the state machine is in the recovery
5769 * state, the fc_rscn_id_list of this @vport is walked and the
5770 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5771 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5772 * routine is invoked to handle the RSCN event.
5775 * 0 - Just sent the acc response
5776 * 1 - Sent the acc response and waited for name server completion
5779 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5780 struct lpfc_nodelist *ndlp)
5782 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5783 struct lpfc_hba *phba = vport->phba;
5784 struct lpfc_dmabuf *pcmd;
5785 uint32_t *lp, *datap;
5786 uint32_t payload_len, length, nportid, *cmd;
5788 int rscn_id = 0, hba_id = 0;
5791 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5792 lp = (uint32_t *) pcmd->virt;
5794 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5795 payload_len -= sizeof(uint32_t); /* take off word 0 */
5797 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5798 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5799 vport->fc_flag, payload_len, *lp,
5800 vport->fc_rscn_id_cnt);
5802 /* Send an RSCN event to the management application */
5803 lpfc_send_rscn_event(vport, cmdiocb);
5805 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
5806 fc_host_post_event(shost, fc_get_event_number(),
5807 FCH_EVT_RSCN, lp[i]);
5809 /* If we are about to begin discovery, just ACC the RSCN.
5810 * Discovery processing will satisfy it.
5812 if (vport->port_state <= LPFC_NS_QRY) {
5813 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5814 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5815 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5817 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5821 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5822 * just ACC and ignore it.
5824 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5825 !(vport->cfg_peer_port_login)) {
5830 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
5831 i -= sizeof(uint32_t);
5833 if (lpfc_find_vport_by_did(phba, nportid))
5836 if (rscn_id == hba_id) {
5837 /* ALL NPortIDs in RSCN are on HBA */
5838 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5840 "Data: x%x x%x x%x x%x\n",
5841 vport->fc_flag, payload_len,
5842 *lp, vport->fc_rscn_id_cnt);
5843 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5844 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
5845 ndlp->nlp_DID, vport->port_state,
5848 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
5854 spin_lock_irq(shost->host_lock);
5855 if (vport->fc_rscn_flush) {
5856 /* Another thread is walking fc_rscn_id_list on this vport */
5857 vport->fc_flag |= FC_RSCN_DISCOVERY;
5858 spin_unlock_irq(shost->host_lock);
5860 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5863 /* Indicate we are walking fc_rscn_id_list on this vport */
5864 vport->fc_rscn_flush = 1;
5865 spin_unlock_irq(shost->host_lock);
5866 /* Get the array count after successfully have the token */
5867 rscn_cnt = vport->fc_rscn_id_cnt;
5868 /* If we are already processing an RSCN, save the received
5869 * RSCN payload buffer, cmdiocb->context2 to process later.
5871 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
5872 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5873 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
5874 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5876 spin_lock_irq(shost->host_lock);
5877 vport->fc_flag |= FC_RSCN_DEFERRED;
5878 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
5879 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
5880 vport->fc_flag |= FC_RSCN_MODE;
5881 spin_unlock_irq(shost->host_lock);
5883 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
5884 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
5887 (payload_len + length <= LPFC_BPL_SIZE)) {
5888 *cmd &= ELS_CMD_MASK;
5889 *cmd |= cpu_to_be32(payload_len + length);
5890 memcpy(((uint8_t *)cmd) + length, lp,
5893 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
5894 vport->fc_rscn_id_cnt++;
5895 /* If we zero, cmdiocb->context2, the calling
5896 * routine will not try to free it.
5898 cmdiocb->context2 = NULL;
5901 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5902 "0235 Deferred RSCN "
5903 "Data: x%x x%x x%x\n",
5904 vport->fc_rscn_id_cnt, vport->fc_flag,
5907 vport->fc_flag |= FC_RSCN_DISCOVERY;
5908 spin_unlock_irq(shost->host_lock);
5909 /* ReDiscovery RSCN */
5910 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5911 "0234 ReDiscovery RSCN "
5912 "Data: x%x x%x x%x\n",
5913 vport->fc_rscn_id_cnt, vport->fc_flag,
5916 /* Indicate we are done walking fc_rscn_id_list on this vport */
5917 vport->fc_rscn_flush = 0;
5919 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5920 /* send RECOVERY event for ALL nodes that match RSCN payload */
5921 lpfc_rscn_recovery_check(vport);
5922 spin_lock_irq(shost->host_lock);
5923 vport->fc_flag &= ~FC_RSCN_DEFERRED;
5924 spin_unlock_irq(shost->host_lock);
5927 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5928 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
5929 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5931 spin_lock_irq(shost->host_lock);
5932 vport->fc_flag |= FC_RSCN_MODE;
5933 spin_unlock_irq(shost->host_lock);
5934 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
5935 /* Indicate we are done walking fc_rscn_id_list on this vport */
5936 vport->fc_rscn_flush = 0;
5938 * If we zero, cmdiocb->context2, the calling routine will
5939 * not try to free it.
5941 cmdiocb->context2 = NULL;
5942 lpfc_set_disctmo(vport);
5944 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5945 /* send RECOVERY event for ALL nodes that match RSCN payload */
5946 lpfc_rscn_recovery_check(vport);
5947 return lpfc_els_handle_rscn(vport);
5951 * lpfc_els_handle_rscn - Handle rscn for a vport
5952 * @vport: pointer to a host virtual N_Port data structure.
5954 * This routine handles the Registration State Configuration Notification
5955 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5956 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5957 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5958 * NameServer shall be issued. If CT command to the NameServer fails to be
5959 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5960 * RSCN activities with the @vport.
5963 * 0 - Cleaned up rscn on the @vport
5964 * 1 - Wait for plogi to name server before proceed
5967 lpfc_els_handle_rscn(struct lpfc_vport *vport)
5969 struct lpfc_nodelist *ndlp;
5970 struct lpfc_hba *phba = vport->phba;
5972 /* Ignore RSCN if the port is being torn down. */
5973 if (vport->load_flag & FC_UNLOADING) {
5974 lpfc_els_flush_rscn(vport);
5978 /* Start timer for RSCN processing */
5979 lpfc_set_disctmo(vport);
5981 /* RSCN processed */
5982 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5983 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5984 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
5987 /* To process RSCN, first compare RSCN data with NameServer */
5988 vport->fc_ns_retry = 0;
5989 vport->num_disc_nodes = 0;
5991 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5992 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
5993 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
5994 /* Good ndlp, issue CT Request to NameServer */
5995 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0)
5996 /* Wait for NameServer query cmpl before we can
6000 /* If login to NameServer does not exist, issue one */
6001 /* Good status, issue PLOGI to NameServer */
6002 ndlp = lpfc_findnode_did(vport, NameServer_DID);
6003 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
6004 /* Wait for NameServer login cmpl before we can
6009 ndlp = lpfc_enable_node(vport, ndlp,
6010 NLP_STE_PLOGI_ISSUE);
6012 lpfc_els_flush_rscn(vport);
6015 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
6017 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
6019 lpfc_els_flush_rscn(vport);
6022 lpfc_nlp_init(vport, ndlp, NameServer_DID);
6023 ndlp->nlp_prev_state = ndlp->nlp_state;
6024 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
6026 ndlp->nlp_type |= NLP_FABRIC;
6027 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
6028 /* Wait for NameServer login cmpl before we can
6034 lpfc_els_flush_rscn(vport);
6039 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
6040 * @vport: pointer to a host virtual N_Port data structure.
6041 * @cmdiocb: pointer to lpfc command iocb data structure.
6042 * @ndlp: pointer to a node-list data structure.
6044 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
6045 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
6046 * point topology. As an unsolicited FLOGI should not be received in a loop
6047 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
6048 * lpfc_check_sparm() routine is invoked to check the parameters in the
6049 * unsolicited FLOGI. If parameters validation failed, the routine
6050 * lpfc_els_rsp_reject() shall be called with reject reason code set to
6051 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
6052 * FLOGI shall be compared with the Port WWN of the @vport to determine who
6053 * will initiate PLOGI. The higher lexicographical value party shall has
6054 * higher priority (as the winning port) and will initiate PLOGI and
6055 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
6056 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
6057 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
6060 * 0 - Successfully processed the unsolicited flogi
6061 * 1 - Failed to process the unsolicited flogi
6064 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6065 struct lpfc_nodelist *ndlp)
6067 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6068 struct lpfc_hba *phba = vport->phba;
6069 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6070 uint32_t *lp = (uint32_t *) pcmd->virt;
6071 IOCB_t *icmd = &cmdiocb->iocb;
6072 struct serv_parm *sp;
6076 uint32_t fc_flag = 0;
6077 uint32_t port_state = 0;
6080 sp = (struct serv_parm *) lp;
6082 /* FLOGI received */
6084 lpfc_set_disctmo(vport);
6086 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6087 /* We should never receive a FLOGI in loop mode, ignore it */
6088 did = icmd->un.elsreq64.remoteID;
6090 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
6092 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
6093 "0113 An FLOGI ELS command x%x was "
6094 "received from DID x%x in Loop Mode\n",
6099 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
6103 * If our portname is greater than the remote portname,
6104 * then we initiate Nport login.
6107 rc = memcmp(&vport->fc_portname, &sp->portName,
6108 sizeof(struct lpfc_name));
6111 if (phba->sli_rev < LPFC_SLI_REV4) {
6112 mbox = mempool_alloc(phba->mbox_mem_pool,
6116 lpfc_linkdown(phba);
6117 lpfc_init_link(phba, mbox,
6119 phba->cfg_link_speed);
6120 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
6121 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6122 mbox->vport = vport;
6123 rc = lpfc_sli_issue_mbox(phba, mbox,
6125 lpfc_set_loopback_flag(phba);
6126 if (rc == MBX_NOT_FINISHED)
6127 mempool_free(mbox, phba->mbox_mem_pool);
6131 /* abort the flogi coming back to ourselves
6132 * due to external loopback on the port.
6134 lpfc_els_abort_flogi(phba);
6137 } else if (rc > 0) { /* greater than */
6138 spin_lock_irq(shost->host_lock);
6139 vport->fc_flag |= FC_PT2PT_PLOGI;
6140 spin_unlock_irq(shost->host_lock);
6142 /* If we have the high WWPN we can assign our own
6143 * myDID; otherwise, we have to WAIT for a PLOGI
6144 * from the remote NPort to find out what it
6147 vport->fc_myDID = PT2PT_LocalID;
6149 vport->fc_myDID = PT2PT_RemoteID;
6153 * The vport state should go to LPFC_FLOGI only
6154 * AFTER we issue a FLOGI, not receive one.
6156 spin_lock_irq(shost->host_lock);
6157 fc_flag = vport->fc_flag;
6158 port_state = vport->port_state;
6159 vport->fc_flag |= FC_PT2PT;
6160 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
6161 spin_unlock_irq(shost->host_lock);
6162 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6163 "3311 Rcv Flogi PS x%x new PS x%x "
6164 "fc_flag x%x new fc_flag x%x\n",
6165 port_state, vport->port_state,
6166 fc_flag, vport->fc_flag);
6169 * We temporarily set fc_myDID to make it look like we are
6170 * a Fabric. This is done just so we end up with the right
6171 * did / sid on the FLOGI ACC rsp.
6173 did = vport->fc_myDID;
6174 vport->fc_myDID = Fabric_DID;
6176 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
6179 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
6181 /* Now lets put fc_myDID back to what its supposed to be */
6182 vport->fc_myDID = did;
6188 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
6189 * @vport: pointer to a host virtual N_Port data structure.
6190 * @cmdiocb: pointer to lpfc command iocb data structure.
6191 * @ndlp: pointer to a node-list data structure.
6193 * This routine processes Request Node Identification Data (RNID) IOCB
6194 * received as an ELS unsolicited event. Only when the RNID specified format
6195 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
6196 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
6197 * Accept (ACC) the RNID ELS command. All the other RNID formats are
6198 * rejected by invoking the lpfc_els_rsp_reject() routine.
6201 * 0 - Successfully processed rnid iocb (currently always return 0)
6204 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6205 struct lpfc_nodelist *ndlp)
6207 struct lpfc_dmabuf *pcmd;
6213 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6214 lp = (uint32_t *) pcmd->virt;
6221 switch (rn->Format) {
6223 case RNID_TOPOLOGY_DISC:
6225 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
6228 /* Reject this request because format not supported */
6229 stat.un.b.lsRjtRsvd0 = 0;
6230 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6231 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6232 stat.un.b.vendorUnique = 0;
6233 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6240 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
6241 * @vport: pointer to a host virtual N_Port data structure.
6242 * @cmdiocb: pointer to lpfc command iocb data structure.
6243 * @ndlp: pointer to a node-list data structure.
6246 * 0 - Successfully processed echo iocb (currently always return 0)
6249 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6250 struct lpfc_nodelist *ndlp)
6254 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
6256 /* skip over first word of echo command to find echo data */
6257 pcmd += sizeof(uint32_t);
6259 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
6264 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
6265 * @vport: pointer to a host virtual N_Port data structure.
6266 * @cmdiocb: pointer to lpfc command iocb data structure.
6267 * @ndlp: pointer to a node-list data structure.
6269 * This routine processes a Link Incident Report Registration(LIRR) IOCB
6270 * received as an ELS unsolicited event. Currently, this function just invokes
6271 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
6274 * 0 - Successfully processed lirr iocb (currently always return 0)
6277 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6278 struct lpfc_nodelist *ndlp)
6282 /* For now, unconditionally reject this command */
6283 stat.un.b.lsRjtRsvd0 = 0;
6284 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6285 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6286 stat.un.b.vendorUnique = 0;
6287 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6292 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
6293 * @vport: pointer to a host virtual N_Port data structure.
6294 * @cmdiocb: pointer to lpfc command iocb data structure.
6295 * @ndlp: pointer to a node-list data structure.
6297 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
6298 * received as an ELS unsolicited event. A request to RRQ shall only
6299 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
6300 * Nx_Port N_Port_ID of the target Exchange is the same as the
6301 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
6302 * not accepted, an LS_RJT with reason code "Unable to perform
6303 * command request" and reason code explanation "Invalid Originator
6304 * S_ID" shall be returned. For now, we just unconditionally accept
6305 * RRQ from the target.
6308 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6309 struct lpfc_nodelist *ndlp)
6311 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6312 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6313 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
6317 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6318 * @phba: pointer to lpfc hba data structure.
6319 * @pmb: pointer to the driver internal queue element for mailbox command.
6321 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6322 * mailbox command. This callback function is to actually send the Accept
6323 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6324 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6325 * mailbox command, constructs the RPS response with the link statistics
6326 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6327 * response to the RPS.
6329 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6330 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6331 * will be stored into the context1 field of the IOCB for the completion
6332 * callback function to the RPS Accept Response ELS IOCB command.
6336 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6340 struct RLS_RSP *rls_rsp;
6342 struct lpfc_iocbq *elsiocb;
6343 struct lpfc_nodelist *ndlp;
6350 ndlp = (struct lpfc_nodelist *) pmb->context2;
6351 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6352 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6353 pmb->context1 = NULL;
6354 pmb->context2 = NULL;
6356 if (mb->mbxStatus) {
6357 mempool_free(pmb, phba->mbox_mem_pool);
6361 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
6362 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6363 lpfc_max_els_tries, ndlp,
6364 ndlp->nlp_DID, ELS_CMD_ACC);
6366 /* Decrement the ndlp reference count from previous mbox command */
6370 mempool_free(pmb, phba->mbox_mem_pool);
6374 icmd = &elsiocb->iocb;
6375 icmd->ulpContext = rxid;
6376 icmd->unsli3.rcvsli3.ox_id = oxid;
6378 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6379 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6380 pcmd += sizeof(uint32_t); /* Skip past command */
6381 rls_rsp = (struct RLS_RSP *)pcmd;
6383 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6384 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6385 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6386 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6387 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6388 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6389 mempool_free(pmb, phba->mbox_mem_pool);
6390 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6391 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6392 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6393 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6394 elsiocb->iotag, elsiocb->iocb.ulpContext,
6395 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6397 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6398 phba->fc_stat.elsXmitACC++;
6399 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6400 lpfc_els_free_iocb(phba, elsiocb);
6404 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6405 * @phba: pointer to lpfc hba data structure.
6406 * @pmb: pointer to the driver internal queue element for mailbox command.
6408 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6409 * mailbox command. This callback function is to actually send the Accept
6410 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6411 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6412 * mailbox command, constructs the RPS response with the link statistics
6413 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6414 * response to the RPS.
6416 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6417 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6418 * will be stored into the context1 field of the IOCB for the completion
6419 * callback function to the RPS Accept Response ELS IOCB command.
6423 lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6429 struct lpfc_iocbq *elsiocb;
6430 struct lpfc_nodelist *ndlp;
6438 ndlp = (struct lpfc_nodelist *) pmb->context2;
6439 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6440 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6441 pmb->context1 = NULL;
6442 pmb->context2 = NULL;
6444 if (mb->mbxStatus) {
6445 mempool_free(pmb, phba->mbox_mem_pool);
6449 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
6450 mempool_free(pmb, phba->mbox_mem_pool);
6451 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6452 lpfc_max_els_tries, ndlp,
6453 ndlp->nlp_DID, ELS_CMD_ACC);
6455 /* Decrement the ndlp reference count from previous mbox command */
6461 icmd = &elsiocb->iocb;
6462 icmd->ulpContext = rxid;
6463 icmd->unsli3.rcvsli3.ox_id = oxid;
6465 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6466 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6467 pcmd += sizeof(uint32_t); /* Skip past command */
6468 rps_rsp = (RPS_RSP *)pcmd;
6470 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
6474 if (phba->pport->fc_flag & FC_FABRIC)
6478 rps_rsp->portStatus = cpu_to_be16(status);
6479 rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6480 rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6481 rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6482 rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6483 rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6484 rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6485 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6486 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6487 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6488 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6489 elsiocb->iotag, elsiocb->iocb.ulpContext,
6490 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6492 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6493 phba->fc_stat.elsXmitACC++;
6494 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6495 lpfc_els_free_iocb(phba, elsiocb);
6500 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6501 * @vport: pointer to a host virtual N_Port data structure.
6502 * @cmdiocb: pointer to lpfc command iocb data structure.
6503 * @ndlp: pointer to a node-list data structure.
6505 * This routine processes Read Port Status (RPL) IOCB received as an
6506 * ELS unsolicited event. It first checks the remote port state. If the
6507 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6508 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6509 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6510 * for reading the HBA link statistics. It is for the callback function,
6511 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6512 * to actually sending out RPL Accept (ACC) response.
6515 * 0 - Successfully processed rls iocb (currently always return 0)
6518 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6519 struct lpfc_nodelist *ndlp)
6521 struct lpfc_hba *phba = vport->phba;
6525 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6526 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6527 /* reject the unsolicited RPS request and done with it */
6530 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6532 lpfc_read_lnk_stat(phba, mbox);
6533 mbox->context1 = (void *)((unsigned long)
6534 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6535 cmdiocb->iocb.ulpContext)); /* rx_id */
6536 mbox->context2 = lpfc_nlp_get(ndlp);
6537 mbox->vport = vport;
6538 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
6539 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6540 != MBX_NOT_FINISHED)
6541 /* Mbox completion will send ELS Response */
6543 /* Decrement reference count used for the failed mbox
6547 mempool_free(mbox, phba->mbox_mem_pool);
6550 /* issue rejection response */
6551 stat.un.b.lsRjtRsvd0 = 0;
6552 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6553 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6554 stat.un.b.vendorUnique = 0;
6555 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6560 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6561 * @vport: pointer to a host virtual N_Port data structure.
6562 * @cmdiocb: pointer to lpfc command iocb data structure.
6563 * @ndlp: pointer to a node-list data structure.
6565 * This routine processes Read Timout Value (RTV) IOCB received as an
6566 * ELS unsolicited event. It first checks the remote port state. If the
6567 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6568 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6569 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6570 * Value (RTV) unsolicited IOCB event.
6572 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6573 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6574 * will be stored into the context1 field of the IOCB for the completion
6575 * callback function to the RPS Accept Response ELS IOCB command.
6578 * 0 - Successfully processed rtv iocb (currently always return 0)
6581 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6582 struct lpfc_nodelist *ndlp)
6584 struct lpfc_hba *phba = vport->phba;
6586 struct RTV_RSP *rtv_rsp;
6588 struct lpfc_iocbq *elsiocb;
6592 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6593 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6594 /* reject the unsolicited RPS request and done with it */
6597 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
6598 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6599 lpfc_max_els_tries, ndlp,
6600 ndlp->nlp_DID, ELS_CMD_ACC);
6605 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6606 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6607 pcmd += sizeof(uint32_t); /* Skip past command */
6609 /* use the command's xri in the response */
6610 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
6611 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
6613 rtv_rsp = (struct RTV_RSP *)pcmd;
6615 /* populate RTV payload */
6616 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
6617 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
6618 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
6619 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
6620 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
6622 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6623 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6624 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6625 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6626 "Data: x%x x%x x%x\n",
6627 elsiocb->iotag, elsiocb->iocb.ulpContext,
6628 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6630 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
6631 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6632 phba->fc_stat.elsXmitACC++;
6633 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6634 lpfc_els_free_iocb(phba, elsiocb);
6638 /* issue rejection response */
6639 stat.un.b.lsRjtRsvd0 = 0;
6640 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6641 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6642 stat.un.b.vendorUnique = 0;
6643 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6647 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6648 * @vport: pointer to a host virtual N_Port data structure.
6649 * @cmdiocb: pointer to lpfc command iocb data structure.
6650 * @ndlp: pointer to a node-list data structure.
6652 * This routine processes Read Port Status (RPS) IOCB received as an
6653 * ELS unsolicited event. It first checks the remote port state. If the
6654 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6655 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6656 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6657 * for reading the HBA link statistics. It is for the callback function,
6658 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6659 * to actually sending out RPS Accept (ACC) response.
6662 * 0 - Successfully processed rps iocb (currently always return 0)
6665 lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6666 struct lpfc_nodelist *ndlp)
6668 struct lpfc_hba *phba = vport->phba;
6672 struct lpfc_dmabuf *pcmd;
6676 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6677 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6678 /* reject the unsolicited RPS request and done with it */
6681 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6682 lp = (uint32_t *) pcmd->virt;
6683 flag = (be32_to_cpu(*lp++) & 0xf);
6687 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
6688 ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
6689 sizeof(struct lpfc_name)) == 0))) {
6691 printk("Fix me....\n");
6693 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6695 lpfc_read_lnk_stat(phba, mbox);
6696 mbox->context1 = (void *)((unsigned long)
6697 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6698 cmdiocb->iocb.ulpContext)); /* rx_id */
6699 mbox->context2 = lpfc_nlp_get(ndlp);
6700 mbox->vport = vport;
6701 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
6702 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6703 != MBX_NOT_FINISHED)
6704 /* Mbox completion will send ELS Response */
6706 /* Decrement reference count used for the failed mbox
6710 mempool_free(mbox, phba->mbox_mem_pool);
6715 /* issue rejection response */
6716 stat.un.b.lsRjtRsvd0 = 0;
6717 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6718 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6719 stat.un.b.vendorUnique = 0;
6720 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6724 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6725 * @vport: pointer to a host virtual N_Port data structure.
6726 * @ndlp: pointer to a node-list data structure.
6727 * @did: DID of the target.
6728 * @rrq: Pointer to the rrq struct.
6730 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6731 * Successful the the completion handler will clear the RRQ.
6734 * 0 - Successfully sent rrq els iocb.
6735 * 1 - Failed to send rrq els iocb.
6738 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
6739 uint32_t did, struct lpfc_node_rrq *rrq)
6741 struct lpfc_hba *phba = vport->phba;
6742 struct RRQ *els_rrq;
6743 struct lpfc_iocbq *elsiocb;
6749 if (ndlp != rrq->ndlp)
6751 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
6754 /* If ndlp is not NULL, we will bump the reference count on it */
6755 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
6756 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
6761 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6763 /* For RRQ request, remainder of payload is Exchange IDs */
6764 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
6765 pcmd += sizeof(uint32_t);
6766 els_rrq = (struct RRQ *) pcmd;
6768 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
6769 bf_set(rrq_rxid, els_rrq, rrq->rxid);
6770 bf_set(rrq_did, els_rrq, vport->fc_myDID);
6771 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
6772 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
6775 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
6776 "Issue RRQ: did:x%x",
6777 did, rrq->xritag, rrq->rxid);
6778 elsiocb->context_un.rrq = rrq;
6779 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
6780 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6782 if (ret == IOCB_ERROR) {
6783 lpfc_els_free_iocb(phba, elsiocb);
6790 * lpfc_send_rrq - Sends ELS RRQ if needed.
6791 * @phba: pointer to lpfc hba data structure.
6792 * @rrq: pointer to the active rrq.
6794 * This routine will call the lpfc_issue_els_rrq if the rrq is
6795 * still active for the xri. If this function returns a failure then
6796 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6798 * Returns 0 Success.
6802 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
6804 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
6809 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
6810 return lpfc_issue_els_rrq(rrq->vport, ndlp,
6817 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6818 * @vport: pointer to a host virtual N_Port data structure.
6819 * @cmdsize: size of the ELS command.
6820 * @oldiocb: pointer to the original lpfc command iocb data structure.
6821 * @ndlp: pointer to a node-list data structure.
6823 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6824 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6826 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6827 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6828 * will be stored into the context1 field of the IOCB for the completion
6829 * callback function to the RPL Accept Response ELS command.
6832 * 0 - Successfully issued ACC RPL ELS command
6833 * 1 - Failed to issue ACC RPL ELS command
6836 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
6837 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
6839 struct lpfc_hba *phba = vport->phba;
6840 IOCB_t *icmd, *oldcmd;
6842 struct lpfc_iocbq *elsiocb;
6845 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
6846 ndlp->nlp_DID, ELS_CMD_ACC);
6851 icmd = &elsiocb->iocb;
6852 oldcmd = &oldiocb->iocb;
6853 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6854 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
6856 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6857 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6858 pcmd += sizeof(uint16_t);
6859 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
6860 pcmd += sizeof(uint16_t);
6862 /* Setup the RPL ACC payload */
6863 rpl_rsp.listLen = be32_to_cpu(1);
6865 rpl_rsp.port_num_blk.portNum = 0;
6866 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
6867 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
6868 sizeof(struct lpfc_name));
6869 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
6870 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
6871 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6872 "0120 Xmit ELS RPL ACC response tag x%x "
6873 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
6875 elsiocb->iotag, elsiocb->iocb.ulpContext,
6876 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6878 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6879 phba->fc_stat.elsXmitACC++;
6880 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
6882 lpfc_els_free_iocb(phba, elsiocb);
6889 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
6890 * @vport: pointer to a host virtual N_Port data structure.
6891 * @cmdiocb: pointer to lpfc command iocb data structure.
6892 * @ndlp: pointer to a node-list data structure.
6894 * This routine processes Read Port List (RPL) IOCB received as an ELS
6895 * unsolicited event. It first checks the remote port state. If the remote
6896 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
6897 * invokes the lpfc_els_rsp_reject() routine to send reject response.
6898 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
6899 * to accept the RPL.
6902 * 0 - Successfully processed rpl iocb (currently always return 0)
6905 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6906 struct lpfc_nodelist *ndlp)
6908 struct lpfc_dmabuf *pcmd;
6915 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6916 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
6917 /* issue rejection response */
6918 stat.un.b.lsRjtRsvd0 = 0;
6919 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6920 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6921 stat.un.b.vendorUnique = 0;
6922 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6924 /* rejected the unsolicited RPL request and done with it */
6928 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6929 lp = (uint32_t *) pcmd->virt;
6930 rpl = (RPL *) (lp + 1);
6931 maxsize = be32_to_cpu(rpl->maxsize);
6933 /* We support only one port */
6934 if ((rpl->index == 0) &&
6936 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
6937 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
6939 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
6941 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
6947 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6948 * @vport: pointer to a virtual N_Port data structure.
6949 * @cmdiocb: pointer to lpfc command iocb data structure.
6950 * @ndlp: pointer to a node-list data structure.
6952 * This routine processes Fibre Channel Address Resolution Protocol
6953 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6954 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6955 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6956 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6957 * remote PortName is compared against the FC PortName stored in the @vport
6958 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6959 * compared against the FC NodeName stored in the @vport data structure.
6960 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6961 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6962 * invoked to send out FARP Response to the remote node. Before sending the
6963 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6964 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6965 * routine is invoked to log into the remote port first.
6968 * 0 - Either the FARP Match Mode not supported or successfully processed
6971 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6972 struct lpfc_nodelist *ndlp)
6974 struct lpfc_dmabuf *pcmd;
6978 uint32_t cmd, cnt, did;
6980 icmd = &cmdiocb->iocb;
6981 did = icmd->un.elsreq64.remoteID;
6982 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6983 lp = (uint32_t *) pcmd->virt;
6987 /* FARP-REQ received from DID <did> */
6988 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6989 "0601 FARP-REQ received from DID x%x\n", did);
6990 /* We will only support match on WWPN or WWNN */
6991 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
6996 /* If this FARP command is searching for my portname */
6997 if (fp->Mflags & FARP_MATCH_PORT) {
6998 if (memcmp(&fp->RportName, &vport->fc_portname,
6999 sizeof(struct lpfc_name)) == 0)
7003 /* If this FARP command is searching for my nodename */
7004 if (fp->Mflags & FARP_MATCH_NODE) {
7005 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
7006 sizeof(struct lpfc_name)) == 0)
7011 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
7012 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
7013 /* Log back into the node before sending the FARP. */
7014 if (fp->Rflags & FARP_REQUEST_PLOGI) {
7015 ndlp->nlp_prev_state = ndlp->nlp_state;
7016 lpfc_nlp_set_state(vport, ndlp,
7017 NLP_STE_PLOGI_ISSUE);
7018 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
7021 /* Send a FARP response to that node */
7022 if (fp->Rflags & FARP_REQUEST_FARPR)
7023 lpfc_issue_els_farpr(vport, did, 0);
7030 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
7031 * @vport: pointer to a host virtual N_Port data structure.
7032 * @cmdiocb: pointer to lpfc command iocb data structure.
7033 * @ndlp: pointer to a node-list data structure.
7035 * This routine processes Fibre Channel Address Resolution Protocol
7036 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
7037 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
7038 * the FARP response request.
7041 * 0 - Successfully processed FARPR IOCB (currently always return 0)
7044 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7045 struct lpfc_nodelist *ndlp)
7047 struct lpfc_dmabuf *pcmd;
7052 icmd = &cmdiocb->iocb;
7053 did = icmd->un.elsreq64.remoteID;
7054 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7055 lp = (uint32_t *) pcmd->virt;
7058 /* FARP-RSP received from DID <did> */
7059 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7060 "0600 FARP-RSP received from DID x%x\n", did);
7061 /* ACCEPT the Farp resp request */
7062 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
7068 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
7069 * @vport: pointer to a host virtual N_Port data structure.
7070 * @cmdiocb: pointer to lpfc command iocb data structure.
7071 * @fan_ndlp: pointer to a node-list data structure.
7073 * This routine processes a Fabric Address Notification (FAN) IOCB
7074 * command received as an ELS unsolicited event. The FAN ELS command will
7075 * only be processed on a physical port (i.e., the @vport represents the
7076 * physical port). The fabric NodeName and PortName from the FAN IOCB are
7077 * compared against those in the phba data structure. If any of those is
7078 * different, the lpfc_initial_flogi() routine is invoked to initialize
7079 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
7080 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
7081 * is invoked to register login to the fabric.
7084 * 0 - Successfully processed fan iocb (currently always return 0).
7087 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7088 struct lpfc_nodelist *fan_ndlp)
7090 struct lpfc_hba *phba = vport->phba;
7094 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
7095 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
7097 /* FAN received; Fan does not have a reply sequence */
7098 if ((vport == phba->pport) &&
7099 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
7100 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
7101 sizeof(struct lpfc_name))) ||
7102 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
7103 sizeof(struct lpfc_name)))) {
7104 /* This port has switched fabrics. FLOGI is required */
7105 lpfc_issue_init_vfi(vport);
7107 /* FAN verified - skip FLOGI */
7108 vport->fc_myDID = vport->fc_prevDID;
7109 if (phba->sli_rev < LPFC_SLI_REV4)
7110 lpfc_issue_fabric_reglogin(vport);
7112 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7113 "3138 Need register VFI: (x%x/%x)\n",
7114 vport->fc_prevDID, vport->fc_myDID);
7115 lpfc_issue_reg_vfi(vport);
7123 * lpfc_els_timeout - Handler funciton to the els timer
7124 * @ptr: holder for the timer function associated data.
7126 * This routine is invoked by the ELS timer after timeout. It posts the ELS
7127 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
7128 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
7129 * up the worker thread. It is for the worker thread to invoke the routine
7130 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
7133 lpfc_els_timeout(unsigned long ptr)
7135 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
7136 struct lpfc_hba *phba = vport->phba;
7137 uint32_t tmo_posted;
7138 unsigned long iflag;
7140 spin_lock_irqsave(&vport->work_port_lock, iflag);
7141 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
7142 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
7143 vport->work_port_events |= WORKER_ELS_TMO;
7144 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
7146 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
7147 lpfc_worker_wake_up(phba);
7153 * lpfc_els_timeout_handler - Process an els timeout event
7154 * @vport: pointer to a virtual N_Port data structure.
7156 * This routine is the actual handler function that processes an ELS timeout
7157 * event. It walks the ELS ring to get and abort all the IOCBs (except the
7158 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
7159 * invoking the lpfc_sli_issue_abort_iotag() routine.
7162 lpfc_els_timeout_handler(struct lpfc_vport *vport)
7164 struct lpfc_hba *phba = vport->phba;
7165 struct lpfc_sli_ring *pring;
7166 struct lpfc_iocbq *tmp_iocb, *piocb;
7168 struct lpfc_dmabuf *pcmd;
7169 uint32_t els_command = 0;
7171 uint32_t remote_ID = 0xffffffff;
7172 LIST_HEAD(abort_list);
7175 timeout = (uint32_t)(phba->fc_ratov << 1);
7177 pring = &phba->sli.ring[LPFC_ELS_RING];
7178 if ((phba->pport->load_flag & FC_UNLOADING))
7180 spin_lock_irq(&phba->hbalock);
7181 if (phba->sli_rev == LPFC_SLI_REV4)
7182 spin_lock(&pring->ring_lock);
7184 if ((phba->pport->load_flag & FC_UNLOADING)) {
7185 if (phba->sli_rev == LPFC_SLI_REV4)
7186 spin_unlock(&pring->ring_lock);
7187 spin_unlock_irq(&phba->hbalock);
7191 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7194 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
7195 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
7196 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
7199 if (piocb->vport != vport)
7202 pcmd = (struct lpfc_dmabuf *) piocb->context2;
7204 els_command = *(uint32_t *) (pcmd->virt);
7206 if (els_command == ELS_CMD_FARP ||
7207 els_command == ELS_CMD_FARPR ||
7208 els_command == ELS_CMD_FDISC)
7211 if (piocb->drvrTimeout > 0) {
7212 if (piocb->drvrTimeout >= timeout)
7213 piocb->drvrTimeout -= timeout;
7215 piocb->drvrTimeout = 0;
7219 remote_ID = 0xffffffff;
7220 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
7221 remote_ID = cmd->un.elsreq64.remoteID;
7223 struct lpfc_nodelist *ndlp;
7224 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
7225 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
7226 remote_ID = ndlp->nlp_DID;
7228 list_add_tail(&piocb->dlist, &abort_list);
7230 if (phba->sli_rev == LPFC_SLI_REV4)
7231 spin_unlock(&pring->ring_lock);
7232 spin_unlock_irq(&phba->hbalock);
7234 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7236 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7237 "0127 ELS timeout Data: x%x x%x x%x "
7238 "x%x\n", els_command,
7239 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
7240 spin_lock_irq(&phba->hbalock);
7241 list_del_init(&piocb->dlist);
7242 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7243 spin_unlock_irq(&phba->hbalock);
7246 if (!list_empty(&phba->sli.ring[LPFC_ELS_RING].txcmplq))
7247 if (!(phba->pport->load_flag & FC_UNLOADING))
7248 mod_timer(&vport->els_tmofunc,
7249 jiffies + msecs_to_jiffies(1000 * timeout));
7253 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
7254 * @vport: pointer to a host virtual N_Port data structure.
7256 * This routine is used to clean up all the outstanding ELS commands on a
7257 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
7258 * routine. After that, it walks the ELS transmit queue to remove all the
7259 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
7260 * the IOCBs with a non-NULL completion callback function, the callback
7261 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7262 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
7263 * callback function, the IOCB will simply be released. Finally, it walks
7264 * the ELS transmit completion queue to issue an abort IOCB to any transmit
7265 * completion queue IOCB that is associated with the @vport and is not
7266 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
7267 * part of the discovery state machine) out to HBA by invoking the
7268 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
7269 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
7270 * the IOCBs are aborted when this function returns.
7273 lpfc_els_flush_cmd(struct lpfc_vport *vport)
7275 LIST_HEAD(abort_list);
7276 struct lpfc_hba *phba = vport->phba;
7277 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7278 struct lpfc_iocbq *tmp_iocb, *piocb;
7281 lpfc_fabric_abort_vport(vport);
7283 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
7284 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
7285 * ultimately grabs the ring_lock, the driver must splice the list into
7286 * a working list and release the locks before calling the abort.
7288 spin_lock_irq(&phba->hbalock);
7289 if (phba->sli_rev == LPFC_SLI_REV4)
7290 spin_lock(&pring->ring_lock);
7292 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7293 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
7296 if (piocb->vport != vport)
7298 list_add_tail(&piocb->dlist, &abort_list);
7300 if (phba->sli_rev == LPFC_SLI_REV4)
7301 spin_unlock(&pring->ring_lock);
7302 spin_unlock_irq(&phba->hbalock);
7303 /* Abort each iocb on the aborted list and remove the dlist links. */
7304 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7305 spin_lock_irq(&phba->hbalock);
7306 list_del_init(&piocb->dlist);
7307 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7308 spin_unlock_irq(&phba->hbalock);
7310 if (!list_empty(&abort_list))
7311 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7312 "3387 abort list for txq not empty\n");
7313 INIT_LIST_HEAD(&abort_list);
7315 spin_lock_irq(&phba->hbalock);
7316 if (phba->sli_rev == LPFC_SLI_REV4)
7317 spin_lock(&pring->ring_lock);
7319 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
7322 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
7326 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7327 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
7328 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
7329 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7330 cmd->ulpCommand == CMD_ABORT_XRI_CN)
7333 if (piocb->vport != vport)
7336 list_del_init(&piocb->list);
7337 list_add_tail(&piocb->list, &abort_list);
7339 if (phba->sli_rev == LPFC_SLI_REV4)
7340 spin_unlock(&pring->ring_lock);
7341 spin_unlock_irq(&phba->hbalock);
7343 /* Cancell all the IOCBs from the completions list */
7344 lpfc_sli_cancel_iocbs(phba, &abort_list,
7345 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
7351 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7352 * @phba: pointer to lpfc hba data structure.
7354 * This routine is used to clean up all the outstanding ELS commands on a
7355 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7356 * routine. After that, it walks the ELS transmit queue to remove all the
7357 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7358 * the IOCBs with the completion callback function associated, the callback
7359 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7360 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7361 * callback function associated, the IOCB will simply be released. Finally,
7362 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7363 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7364 * management plane IOCBs that are not part of the discovery state machine)
7365 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7368 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
7370 struct lpfc_vport *vport;
7371 list_for_each_entry(vport, &phba->port_list, listentry)
7372 lpfc_els_flush_cmd(vport);
7378 * lpfc_send_els_failure_event - Posts an ELS command failure event
7379 * @phba: Pointer to hba context object.
7380 * @cmdiocbp: Pointer to command iocb which reported error.
7381 * @rspiocbp: Pointer to response iocb which reported error.
7383 * This function sends an event when there is an ELS command
7387 lpfc_send_els_failure_event(struct lpfc_hba *phba,
7388 struct lpfc_iocbq *cmdiocbp,
7389 struct lpfc_iocbq *rspiocbp)
7391 struct lpfc_vport *vport = cmdiocbp->vport;
7392 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7393 struct lpfc_lsrjt_event lsrjt_event;
7394 struct lpfc_fabric_event_header fabric_event;
7396 struct lpfc_nodelist *ndlp;
7399 ndlp = cmdiocbp->context1;
7400 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
7403 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
7404 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
7405 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
7406 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
7407 sizeof(struct lpfc_name));
7408 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
7409 sizeof(struct lpfc_name));
7410 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7411 cmdiocbp->context2)->virt);
7412 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
7413 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
7414 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
7415 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
7416 fc_host_post_vendor_event(shost,
7417 fc_get_event_number(),
7418 sizeof(lsrjt_event),
7419 (char *)&lsrjt_event,
7423 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
7424 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
7425 fabric_event.event_type = FC_REG_FABRIC_EVENT;
7426 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
7427 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
7429 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
7430 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
7431 sizeof(struct lpfc_name));
7432 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
7433 sizeof(struct lpfc_name));
7434 fc_host_post_vendor_event(shost,
7435 fc_get_event_number(),
7436 sizeof(fabric_event),
7437 (char *)&fabric_event,
7445 * lpfc_send_els_event - Posts unsolicited els event
7446 * @vport: Pointer to vport object.
7447 * @ndlp: Pointer FC node object.
7448 * @cmd: ELS command code.
7450 * This function posts an event when there is an incoming
7451 * unsolicited ELS command.
7454 lpfc_send_els_event(struct lpfc_vport *vport,
7455 struct lpfc_nodelist *ndlp,
7458 struct lpfc_els_event_header *els_data = NULL;
7459 struct lpfc_logo_event *logo_data = NULL;
7460 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7462 if (*payload == ELS_CMD_LOGO) {
7463 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
7465 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7466 "0148 Failed to allocate memory "
7467 "for LOGO event\n");
7470 els_data = &logo_data->header;
7472 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
7475 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7476 "0149 Failed to allocate memory "
7481 els_data->event_type = FC_REG_ELS_EVENT;
7484 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
7487 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
7490 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
7493 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
7494 /* Copy the WWPN in the LOGO payload */
7495 memcpy(logo_data->logo_wwpn, &payload[2],
7496 sizeof(struct lpfc_name));
7502 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
7503 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
7504 if (*payload == ELS_CMD_LOGO) {
7505 fc_host_post_vendor_event(shost,
7506 fc_get_event_number(),
7507 sizeof(struct lpfc_logo_event),
7512 fc_host_post_vendor_event(shost,
7513 fc_get_event_number(),
7514 sizeof(struct lpfc_els_event_header),
7525 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7526 * @phba: pointer to lpfc hba data structure.
7527 * @pring: pointer to a SLI ring.
7528 * @vport: pointer to a host virtual N_Port data structure.
7529 * @elsiocb: pointer to lpfc els command iocb data structure.
7531 * This routine is used for processing the IOCB associated with a unsolicited
7532 * event. It first determines whether there is an existing ndlp that matches
7533 * the DID from the unsolicited IOCB. If not, it will create a new one with
7534 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7535 * IOCB is then used to invoke the proper routine and to set up proper state
7536 * of the discovery state machine.
7539 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7540 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
7542 struct Scsi_Host *shost;
7543 struct lpfc_nodelist *ndlp;
7546 uint32_t cmd, did, newnode;
7547 uint8_t rjt_exp, rjt_err = 0;
7548 IOCB_t *icmd = &elsiocb->iocb;
7550 if (!vport || !(elsiocb->context2))
7554 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
7556 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
7557 lpfc_post_buffer(phba, pring, 1);
7559 did = icmd->un.rcvels.remoteID;
7560 if (icmd->ulpStatus) {
7561 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7562 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7563 icmd->ulpStatus, icmd->un.ulpWord[4], did);
7567 /* Check to see if link went down during discovery */
7568 if (lpfc_els_chk_latt(vport))
7571 /* Ignore traffic received during vport shutdown. */
7572 if (vport->load_flag & FC_UNLOADING)
7575 /* If NPort discovery is delayed drop incoming ELS */
7576 if ((vport->fc_flag & FC_DISC_DELAYED) &&
7577 (cmd != ELS_CMD_PLOGI))
7580 ndlp = lpfc_findnode_did(vport, did);
7582 /* Cannot find existing Fabric ndlp, so allocate a new one */
7583 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7587 lpfc_nlp_init(vport, ndlp, did);
7588 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7590 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7591 ndlp->nlp_type |= NLP_FABRIC;
7592 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7593 ndlp = lpfc_enable_node(vport, ndlp,
7594 NLP_STE_UNUSED_NODE);
7597 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7599 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7600 ndlp->nlp_type |= NLP_FABRIC;
7601 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
7602 /* This is similar to the new node path */
7603 ndlp = lpfc_nlp_get(ndlp);
7606 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7610 phba->fc_stat.elsRcvFrame++;
7613 * Do not process any unsolicited ELS commands
7614 * if the ndlp is in DEV_LOSS
7616 shost = lpfc_shost_from_vport(vport);
7617 spin_lock_irq(shost->host_lock);
7618 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
7619 spin_unlock_irq(shost->host_lock);
7624 spin_unlock_irq(shost->host_lock);
7626 elsiocb->context1 = lpfc_nlp_get(ndlp);
7627 elsiocb->vport = vport;
7629 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
7630 cmd &= ELS_CMD_MASK;
7632 /* ELS command <elsCmd> received from NPORT <did> */
7633 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7634 "0112 ELS command x%x received from NPORT x%x "
7635 "Data: x%x x%x x%x x%x\n",
7636 cmd, did, vport->port_state, vport->fc_flag,
7637 vport->fc_myDID, vport->fc_prevDID);
7639 /* reject till our FLOGI completes */
7640 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
7641 (cmd != ELS_CMD_FLOGI)) {
7642 rjt_err = LSRJT_UNABLE_TPC;
7643 rjt_exp = LSEXP_NOTHING_MORE;
7649 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7650 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7651 did, vport->port_state, ndlp->nlp_flag);
7653 phba->fc_stat.elsRcvPLOGI++;
7654 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
7655 if (phba->sli_rev == LPFC_SLI_REV4 &&
7656 (phba->pport->fc_flag & FC_PT2PT)) {
7657 vport->fc_prevDID = vport->fc_myDID;
7658 /* Our DID needs to be updated before registering
7659 * the vfi. This is done in lpfc_rcv_plogi but
7660 * that is called after the reg_vfi.
7662 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
7663 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7664 "3312 Remote port assigned DID x%x "
7665 "%x\n", vport->fc_myDID,
7669 lpfc_send_els_event(vport, ndlp, payload);
7671 /* If Nport discovery is delayed, reject PLOGIs */
7672 if (vport->fc_flag & FC_DISC_DELAYED) {
7673 rjt_err = LSRJT_UNABLE_TPC;
7674 rjt_exp = LSEXP_NOTHING_MORE;
7678 if (vport->port_state < LPFC_DISC_AUTH) {
7679 if (!(phba->pport->fc_flag & FC_PT2PT) ||
7680 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
7681 rjt_err = LSRJT_UNABLE_TPC;
7682 rjt_exp = LSEXP_NOTHING_MORE;
7687 spin_lock_irq(shost->host_lock);
7688 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
7689 spin_unlock_irq(shost->host_lock);
7691 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7696 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7697 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7698 did, vport->port_state, ndlp->nlp_flag);
7700 phba->fc_stat.elsRcvFLOGI++;
7701 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
7706 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7707 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7708 did, vport->port_state, ndlp->nlp_flag);
7710 phba->fc_stat.elsRcvLOGO++;
7711 lpfc_send_els_event(vport, ndlp, payload);
7712 if (vport->port_state < LPFC_DISC_AUTH) {
7713 rjt_err = LSRJT_UNABLE_TPC;
7714 rjt_exp = LSEXP_NOTHING_MORE;
7717 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
7720 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7721 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7722 did, vport->port_state, ndlp->nlp_flag);
7724 phba->fc_stat.elsRcvPRLO++;
7725 lpfc_send_els_event(vport, ndlp, payload);
7726 if (vport->port_state < LPFC_DISC_AUTH) {
7727 rjt_err = LSRJT_UNABLE_TPC;
7728 rjt_exp = LSEXP_NOTHING_MORE;
7731 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
7734 phba->fc_stat.elsRcvLCB++;
7735 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
7738 phba->fc_stat.elsRcvRDP++;
7739 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
7742 phba->fc_stat.elsRcvRSCN++;
7743 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
7748 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7749 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7750 did, vport->port_state, ndlp->nlp_flag);
7752 lpfc_send_els_event(vport, ndlp, payload);
7753 phba->fc_stat.elsRcvADISC++;
7754 if (vport->port_state < LPFC_DISC_AUTH) {
7755 rjt_err = LSRJT_UNABLE_TPC;
7756 rjt_exp = LSEXP_NOTHING_MORE;
7759 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7763 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7764 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7765 did, vport->port_state, ndlp->nlp_flag);
7767 phba->fc_stat.elsRcvPDISC++;
7768 if (vport->port_state < LPFC_DISC_AUTH) {
7769 rjt_err = LSRJT_UNABLE_TPC;
7770 rjt_exp = LSEXP_NOTHING_MORE;
7773 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7777 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7778 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7779 did, vport->port_state, ndlp->nlp_flag);
7781 phba->fc_stat.elsRcvFARPR++;
7782 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
7785 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7786 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7787 did, vport->port_state, ndlp->nlp_flag);
7789 phba->fc_stat.elsRcvFARP++;
7790 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
7793 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7794 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7795 did, vport->port_state, ndlp->nlp_flag);
7797 phba->fc_stat.elsRcvFAN++;
7798 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
7801 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7802 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7803 did, vport->port_state, ndlp->nlp_flag);
7805 phba->fc_stat.elsRcvPRLI++;
7806 if ((vport->port_state < LPFC_DISC_AUTH) &&
7807 (vport->fc_flag & FC_FABRIC)) {
7808 rjt_err = LSRJT_UNABLE_TPC;
7809 rjt_exp = LSEXP_NOTHING_MORE;
7812 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
7815 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7816 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7817 did, vport->port_state, ndlp->nlp_flag);
7819 phba->fc_stat.elsRcvLIRR++;
7820 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
7825 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7826 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7827 did, vport->port_state, ndlp->nlp_flag);
7829 phba->fc_stat.elsRcvRLS++;
7830 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
7835 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7836 "RCV RPS: did:x%x/ste:x%x flg:x%x",
7837 did, vport->port_state, ndlp->nlp_flag);
7839 phba->fc_stat.elsRcvRPS++;
7840 lpfc_els_rcv_rps(vport, elsiocb, ndlp);
7845 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7846 "RCV RPL: did:x%x/ste:x%x flg:x%x",
7847 did, vport->port_state, ndlp->nlp_flag);
7849 phba->fc_stat.elsRcvRPL++;
7850 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
7855 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7856 "RCV RNID: did:x%x/ste:x%x flg:x%x",
7857 did, vport->port_state, ndlp->nlp_flag);
7859 phba->fc_stat.elsRcvRNID++;
7860 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
7865 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7866 "RCV RTV: did:x%x/ste:x%x flg:x%x",
7867 did, vport->port_state, ndlp->nlp_flag);
7868 phba->fc_stat.elsRcvRTV++;
7869 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
7874 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7875 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
7876 did, vport->port_state, ndlp->nlp_flag);
7878 phba->fc_stat.elsRcvRRQ++;
7879 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
7884 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7885 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
7886 did, vport->port_state, ndlp->nlp_flag);
7888 phba->fc_stat.elsRcvECHO++;
7889 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
7894 /* receive this due to exchange closed */
7895 rjt_err = LSRJT_UNABLE_TPC;
7896 rjt_exp = LSEXP_INVALID_OX_RX;
7899 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7900 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
7901 cmd, did, vport->port_state);
7903 /* Unsupported ELS command, reject */
7904 rjt_err = LSRJT_CMD_UNSUPPORTED;
7905 rjt_exp = LSEXP_NOTHING_MORE;
7907 /* Unknown ELS command <elsCmd> received from NPORT <did> */
7908 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7909 "0115 Unknown ELS command x%x "
7910 "received from NPORT x%x\n", cmd, did);
7917 /* check if need to LS_RJT received ELS cmd */
7919 memset(&stat, 0, sizeof(stat));
7920 stat.un.b.lsRjtRsnCode = rjt_err;
7921 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
7922 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
7926 lpfc_nlp_put(elsiocb->context1);
7927 elsiocb->context1 = NULL;
7931 if (vport && !(vport->load_flag & FC_UNLOADING))
7932 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7933 "0111 Dropping received ELS cmd "
7934 "Data: x%x x%x x%x\n",
7935 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
7936 phba->fc_stat.elsRcvDrop++;
7940 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7941 * @phba: pointer to lpfc hba data structure.
7942 * @pring: pointer to a SLI ring.
7943 * @elsiocb: pointer to lpfc els iocb data structure.
7945 * This routine is used to process an unsolicited event received from a SLI
7946 * (Service Level Interface) ring. The actual processing of the data buffer
7947 * associated with the unsolicited event is done by invoking the routine
7948 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7949 * SLI ring on which the unsolicited event was received.
7952 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7953 struct lpfc_iocbq *elsiocb)
7955 struct lpfc_vport *vport = phba->pport;
7956 IOCB_t *icmd = &elsiocb->iocb;
7958 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
7959 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
7961 elsiocb->context1 = NULL;
7962 elsiocb->context2 = NULL;
7963 elsiocb->context3 = NULL;
7965 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
7966 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
7967 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
7968 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
7969 IOERR_RCV_BUFFER_WAITING) {
7970 phba->fc_stat.NoRcvBuf++;
7971 /* Not enough posted buffers; Try posting more buffers */
7972 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
7973 lpfc_post_buffer(phba, pring, 0);
7977 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
7978 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
7979 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
7980 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
7981 vport = phba->pport;
7983 vport = lpfc_find_vport_by_vpid(phba,
7984 icmd->unsli3.rcvsli3.vpi);
7987 /* If there are no BDEs associated
7988 * with this IOCB, there is nothing to do.
7990 if (icmd->ulpBdeCount == 0)
7993 /* type of ELS cmd is first 32bit word
7996 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
7997 elsiocb->context2 = bdeBuf1;
7999 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
8000 icmd->un.cont64[0].addrLow);
8001 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
8005 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
8007 * The different unsolicited event handlers would tell us
8008 * if they are done with "mp" by setting context2 to NULL.
8010 if (elsiocb->context2) {
8011 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
8012 elsiocb->context2 = NULL;
8015 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
8016 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
8017 icmd->ulpBdeCount == 2) {
8018 elsiocb->context2 = bdeBuf2;
8019 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
8020 /* free mp if we are done with it */
8021 if (elsiocb->context2) {
8022 lpfc_in_buf_free(phba, elsiocb->context2);
8023 elsiocb->context2 = NULL;
8029 lpfc_start_fdmi(struct lpfc_vport *vport)
8031 struct lpfc_hba *phba = vport->phba;
8032 struct lpfc_nodelist *ndlp;
8034 /* If this is the first time, allocate an ndlp and initialize
8035 * it. Otherwise, make sure the node is enabled and then do the
8038 ndlp = lpfc_findnode_did(vport, FDMI_DID);
8040 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
8042 lpfc_nlp_init(vport, ndlp, FDMI_DID);
8043 ndlp->nlp_type |= NLP_FABRIC;
8048 if (!NLP_CHK_NODE_ACT(ndlp))
8049 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
8052 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8053 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
8058 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
8059 * @phba: pointer to lpfc hba data structure.
8060 * @vport: pointer to a virtual N_Port data structure.
8062 * This routine issues a Port Login (PLOGI) to the Name Server with
8063 * State Change Request (SCR) for a @vport. This routine will create an
8064 * ndlp for the Name Server associated to the @vport if such node does
8065 * not already exist. The PLOGI to Name Server is issued by invoking the
8066 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
8067 * (FDMI) is configured to the @vport, a FDMI node will be created and
8068 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
8071 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
8073 struct lpfc_nodelist *ndlp;
8074 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8077 * If lpfc_delay_discovery parameter is set and the clean address
8078 * bit is cleared and fc fabric parameters chenged, delay FC NPort
8081 spin_lock_irq(shost->host_lock);
8082 if (vport->fc_flag & FC_DISC_DELAYED) {
8083 spin_unlock_irq(shost->host_lock);
8084 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
8085 "3334 Delay fc port discovery for %d seconds\n",
8087 mod_timer(&vport->delayed_disc_tmo,
8088 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
8091 spin_unlock_irq(shost->host_lock);
8093 ndlp = lpfc_findnode_did(vport, NameServer_DID);
8095 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
8097 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8098 lpfc_disc_start(vport);
8101 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8102 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8103 "0251 NameServer login: no memory\n");
8106 lpfc_nlp_init(vport, ndlp, NameServer_DID);
8107 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
8108 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
8110 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8111 lpfc_disc_start(vport);
8114 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8115 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8116 "0348 NameServer login: node freed\n");
8120 ndlp->nlp_type |= NLP_FABRIC;
8122 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8124 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
8125 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8126 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8127 "0252 Cannot issue NameServer login\n");
8131 if ((phba->cfg_enable_SmartSAN ||
8132 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
8133 (vport->load_flag & FC_ALLOW_FDMI))
8134 lpfc_start_fdmi(vport);
8138 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
8139 * @phba: pointer to lpfc hba data structure.
8140 * @pmb: pointer to the driver internal queue element for mailbox command.
8142 * This routine is the completion callback function to register new vport
8143 * mailbox command. If the new vport mailbox command completes successfully,
8144 * the fabric registration login shall be performed on physical port (the
8145 * new vport created is actually a physical port, with VPI 0) or the port
8146 * login to Name Server for State Change Request (SCR) will be performed
8147 * on virtual port (real virtual port, with VPI greater than 0).
8150 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
8152 struct lpfc_vport *vport = pmb->vport;
8153 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8154 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
8155 MAILBOX_t *mb = &pmb->u.mb;
8158 spin_lock_irq(shost->host_lock);
8159 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8160 spin_unlock_irq(shost->host_lock);
8162 if (mb->mbxStatus) {
8163 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8164 "0915 Register VPI failed : Status: x%x"
8165 " upd bit: x%x \n", mb->mbxStatus,
8166 mb->un.varRegVpi.upd);
8167 if (phba->sli_rev == LPFC_SLI_REV4 &&
8168 mb->un.varRegVpi.upd)
8169 goto mbox_err_exit ;
8171 switch (mb->mbxStatus) {
8172 case 0x11: /* unsupported feature */
8173 case 0x9603: /* max_vpi exceeded */
8174 case 0x9602: /* Link event since CLEAR_LA */
8175 /* giving up on vport registration */
8176 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8177 spin_lock_irq(shost->host_lock);
8178 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
8179 spin_unlock_irq(shost->host_lock);
8180 lpfc_can_disctmo(vport);
8182 /* If reg_vpi fail with invalid VPI status, re-init VPI */
8184 spin_lock_irq(shost->host_lock);
8185 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8186 spin_unlock_irq(shost->host_lock);
8187 lpfc_init_vpi(phba, pmb, vport->vpi);
8189 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
8190 rc = lpfc_sli_issue_mbox(phba, pmb,
8192 if (rc == MBX_NOT_FINISHED) {
8193 lpfc_printf_vlog(vport,
8195 "2732 Failed to issue INIT_VPI"
8196 " mailbox command\n");
8203 /* Try to recover from this error */
8204 if (phba->sli_rev == LPFC_SLI_REV4)
8205 lpfc_sli4_unreg_all_rpis(vport);
8206 lpfc_mbx_unreg_vpi(vport);
8207 spin_lock_irq(shost->host_lock);
8208 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8209 spin_unlock_irq(shost->host_lock);
8210 if (mb->mbxStatus == MBX_NOT_FINISHED)
8212 if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
8213 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
8214 if (phba->sli_rev == LPFC_SLI_REV4)
8215 lpfc_issue_init_vfi(vport);
8217 lpfc_initial_flogi(vport);
8219 lpfc_initial_fdisc(vport);
8224 spin_lock_irq(shost->host_lock);
8225 vport->vpi_state |= LPFC_VPI_REGISTERED;
8226 spin_unlock_irq(shost->host_lock);
8227 if (vport == phba->pport) {
8228 if (phba->sli_rev < LPFC_SLI_REV4)
8229 lpfc_issue_fabric_reglogin(vport);
8232 * If the physical port is instantiated using
8233 * FDISC, do not start vport discovery.
8235 if (vport->port_state != LPFC_FDISC)
8236 lpfc_start_fdiscs(phba);
8237 lpfc_do_scr_ns_plogi(phba, vport);
8240 lpfc_do_scr_ns_plogi(phba, vport);
8243 /* Now, we decrement the ndlp reference count held for this
8248 mempool_free(pmb, phba->mbox_mem_pool);
8253 * lpfc_register_new_vport - Register a new vport with a HBA
8254 * @phba: pointer to lpfc hba data structure.
8255 * @vport: pointer to a host virtual N_Port data structure.
8256 * @ndlp: pointer to a node-list data structure.
8258 * This routine registers the @vport as a new virtual port with a HBA.
8259 * It is done through a registering vpi mailbox command.
8262 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
8263 struct lpfc_nodelist *ndlp)
8265 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8268 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8270 lpfc_reg_vpi(vport, mbox);
8271 mbox->vport = vport;
8272 mbox->context2 = lpfc_nlp_get(ndlp);
8273 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
8274 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
8275 == MBX_NOT_FINISHED) {
8276 /* mailbox command not success, decrement ndlp
8277 * reference count for this command
8280 mempool_free(mbox, phba->mbox_mem_pool);
8282 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8283 "0253 Register VPI: Can't send mbox\n");
8287 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8288 "0254 Register VPI: no memory\n");
8294 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8295 spin_lock_irq(shost->host_lock);
8296 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8297 spin_unlock_irq(shost->host_lock);
8302 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
8303 * @phba: pointer to lpfc hba data structure.
8305 * This routine cancels the retry delay timers to all the vports.
8308 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
8310 struct lpfc_vport **vports;
8311 struct lpfc_nodelist *ndlp;
8312 uint32_t link_state;
8315 /* Treat this failure as linkdown for all vports */
8316 link_state = phba->link_state;
8317 lpfc_linkdown(phba);
8318 phba->link_state = link_state;
8320 vports = lpfc_create_vport_work_array(phba);
8323 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8324 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
8326 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
8327 lpfc_els_flush_cmd(vports[i]);
8329 lpfc_destroy_vport_work_array(phba, vports);
8334 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8335 * @phba: pointer to lpfc hba data structure.
8337 * This routine abort all pending discovery commands and
8338 * start a timer to retry FLOGI for the physical port
8342 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
8344 struct lpfc_nodelist *ndlp;
8345 struct Scsi_Host *shost;
8347 /* Cancel the all vports retry delay retry timers */
8348 lpfc_cancel_all_vport_retry_delay_timer(phba);
8350 /* If fabric require FLOGI, then re-instantiate physical login */
8351 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
8355 shost = lpfc_shost_from_vport(phba->pport);
8356 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
8357 spin_lock_irq(shost->host_lock);
8358 ndlp->nlp_flag |= NLP_DELAY_TMO;
8359 spin_unlock_irq(shost->host_lock);
8360 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
8361 phba->pport->port_state = LPFC_FLOGI;
8366 * lpfc_fabric_login_reqd - Check if FLOGI required.
8367 * @phba: pointer to lpfc hba data structure.
8368 * @cmdiocb: pointer to FDISC command iocb.
8369 * @rspiocb: pointer to FDISC response iocb.
8371 * This routine checks if a FLOGI is reguired for FDISC
8375 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
8376 struct lpfc_iocbq *cmdiocb,
8377 struct lpfc_iocbq *rspiocb)
8380 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
8381 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
8388 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8389 * @phba: pointer to lpfc hba data structure.
8390 * @cmdiocb: pointer to lpfc command iocb data structure.
8391 * @rspiocb: pointer to lpfc response iocb data structure.
8393 * This routine is the completion callback function to a Fabric Discover
8394 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8395 * single threaded, each FDISC completion callback function will reset
8396 * the discovery timer for all vports such that the timers will not get
8397 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8398 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8399 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8400 * assigned to the vport has been changed with the completion of the FDISC
8401 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8402 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8403 * routine is invoked to register new vport with the HBA. Otherwise, the
8404 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8405 * Server for State Change Request (SCR).
8408 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8409 struct lpfc_iocbq *rspiocb)
8411 struct lpfc_vport *vport = cmdiocb->vport;
8412 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8413 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
8414 struct lpfc_nodelist *np;
8415 struct lpfc_nodelist *next_np;
8416 IOCB_t *irsp = &rspiocb->iocb;
8417 struct lpfc_iocbq *piocb;
8418 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
8419 struct serv_parm *sp;
8420 uint8_t fabric_param_changed;
8422 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8423 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8424 irsp->ulpStatus, irsp->un.ulpWord[4],
8426 /* Since all FDISCs are being single threaded, we
8427 * must reset the discovery timer for ALL vports
8428 * waiting to send FDISC when one completes.
8430 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
8431 lpfc_set_disctmo(piocb->vport);
8434 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8435 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8436 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
8438 if (irsp->ulpStatus) {
8440 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
8441 lpfc_retry_pport_discovery(phba);
8445 /* Check for retry */
8446 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
8449 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8450 "0126 FDISC failed. (x%x/x%x)\n",
8451 irsp->ulpStatus, irsp->un.ulpWord[4]);
8454 spin_lock_irq(shost->host_lock);
8455 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
8456 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
8457 vport->fc_flag |= FC_FABRIC;
8458 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
8459 vport->fc_flag |= FC_PUBLIC_LOOP;
8460 spin_unlock_irq(shost->host_lock);
8462 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
8463 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
8464 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
8467 sp = prsp->virt + sizeof(uint32_t);
8468 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
8469 memcpy(&vport->fabric_portname, &sp->portName,
8470 sizeof(struct lpfc_name));
8471 memcpy(&vport->fabric_nodename, &sp->nodeName,
8472 sizeof(struct lpfc_name));
8473 if (fabric_param_changed &&
8474 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8475 /* If our NportID changed, we need to ensure all
8476 * remaining NPORTs get unreg_login'ed so we can
8479 list_for_each_entry_safe(np, next_np,
8480 &vport->fc_nodes, nlp_listp) {
8481 if (!NLP_CHK_NODE_ACT(ndlp) ||
8482 (np->nlp_state != NLP_STE_NPR_NODE) ||
8483 !(np->nlp_flag & NLP_NPR_ADISC))
8485 spin_lock_irq(shost->host_lock);
8486 np->nlp_flag &= ~NLP_NPR_ADISC;
8487 spin_unlock_irq(shost->host_lock);
8488 lpfc_unreg_rpi(vport, np);
8490 lpfc_cleanup_pending_mbox(vport);
8492 if (phba->sli_rev == LPFC_SLI_REV4)
8493 lpfc_sli4_unreg_all_rpis(vport);
8495 lpfc_mbx_unreg_vpi(vport);
8496 spin_lock_irq(shost->host_lock);
8497 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8498 if (phba->sli_rev == LPFC_SLI_REV4)
8499 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
8501 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
8502 spin_unlock_irq(shost->host_lock);
8503 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
8504 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8506 * Driver needs to re-reg VPI in order for f/w
8507 * to update the MAC address.
8509 lpfc_register_new_vport(phba, vport, ndlp);
8513 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
8514 lpfc_issue_init_vpi(vport);
8515 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
8516 lpfc_register_new_vport(phba, vport, ndlp);
8518 lpfc_do_scr_ns_plogi(phba, vport);
8521 if (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)
8522 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8523 /* Cancel discovery timer */
8524 lpfc_can_disctmo(vport);
8527 lpfc_els_free_iocb(phba, cmdiocb);
8531 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8532 * @vport: pointer to a virtual N_Port data structure.
8533 * @ndlp: pointer to a node-list data structure.
8534 * @retry: number of retries to the command IOCB.
8536 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8537 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8538 * routine to issue the IOCB, which makes sure only one outstanding fabric
8539 * IOCB will be sent off HBA at any given time.
8541 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8542 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8543 * will be stored into the context1 field of the IOCB for the completion
8544 * callback function to the FDISC ELS command.
8547 * 0 - Successfully issued fdisc iocb command
8548 * 1 - Failed to issue fdisc iocb command
8551 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
8554 struct lpfc_hba *phba = vport->phba;
8556 struct lpfc_iocbq *elsiocb;
8557 struct serv_parm *sp;
8560 int did = ndlp->nlp_DID;
8563 vport->port_state = LPFC_FDISC;
8564 vport->fc_myDID = 0;
8565 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
8566 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
8569 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8570 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8571 "0255 Issue FDISC: no IOCB\n");
8575 icmd = &elsiocb->iocb;
8576 icmd->un.elsreq64.myID = 0;
8577 icmd->un.elsreq64.fl = 1;
8580 * SLI3 ports require a different context type value than SLI4.
8581 * Catch SLI3 ports here and override the prep.
8583 if (phba->sli_rev == LPFC_SLI_REV3) {
8588 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8589 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
8590 pcmd += sizeof(uint32_t); /* CSP Word 1 */
8591 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
8592 sp = (struct serv_parm *) pcmd;
8593 /* Setup CSPs accordingly for Fabric */
8594 sp->cmn.e_d_tov = 0;
8595 sp->cmn.w2.r_a_tov = 0;
8596 sp->cmn.virtual_fabric_support = 0;
8597 sp->cls1.classValid = 0;
8598 sp->cls2.seqDelivery = 1;
8599 sp->cls3.seqDelivery = 1;
8601 pcmd += sizeof(uint32_t); /* CSP Word 2 */
8602 pcmd += sizeof(uint32_t); /* CSP Word 3 */
8603 pcmd += sizeof(uint32_t); /* CSP Word 4 */
8604 pcmd += sizeof(uint32_t); /* Port Name */
8605 memcpy(pcmd, &vport->fc_portname, 8);
8606 pcmd += sizeof(uint32_t); /* Node Name */
8607 pcmd += sizeof(uint32_t); /* Node Name */
8608 memcpy(pcmd, &vport->fc_nodename, 8);
8610 lpfc_set_disctmo(vport);
8612 phba->fc_stat.elsXmitFDISC++;
8613 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
8615 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8616 "Issue FDISC: did:x%x",
8619 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
8620 if (rc == IOCB_ERROR) {
8621 lpfc_els_free_iocb(phba, elsiocb);
8622 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8623 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8624 "0256 Issue FDISC: Cannot send IOCB\n");
8627 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
8632 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8633 * @phba: pointer to lpfc hba data structure.
8634 * @cmdiocb: pointer to lpfc command iocb data structure.
8635 * @rspiocb: pointer to lpfc response iocb data structure.
8637 * This routine is the completion callback function to the issuing of a LOGO
8638 * ELS command off a vport. It frees the command IOCB and then decrement the
8639 * reference count held on ndlp for this completion function, indicating that
8640 * the reference to the ndlp is no long needed. Note that the
8641 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8642 * callback function and an additional explicit ndlp reference decrementation
8643 * will trigger the actual release of the ndlp.
8646 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8647 struct lpfc_iocbq *rspiocb)
8649 struct lpfc_vport *vport = cmdiocb->vport;
8651 struct lpfc_nodelist *ndlp;
8652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8654 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
8655 irsp = &rspiocb->iocb;
8656 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8657 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8658 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
8660 lpfc_els_free_iocb(phba, cmdiocb);
8661 vport->unreg_vpi_cmpl = VPORT_ERROR;
8663 /* Trigger the release of the ndlp after logo */
8666 /* NPIV LOGO completes to NPort <nlp_DID> */
8667 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8668 "2928 NPIV LOGO completes to NPort x%x "
8669 "Data: x%x x%x x%x x%x\n",
8670 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
8671 irsp->ulpTimeout, vport->num_disc_nodes);
8673 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
8674 spin_lock_irq(shost->host_lock);
8675 vport->fc_flag &= ~FC_NDISC_ACTIVE;
8676 vport->fc_flag &= ~FC_FABRIC;
8677 spin_unlock_irq(shost->host_lock);
8678 lpfc_can_disctmo(vport);
8683 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8684 * @vport: pointer to a virtual N_Port data structure.
8685 * @ndlp: pointer to a node-list data structure.
8687 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8689 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8690 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8691 * will be stored into the context1 field of the IOCB for the completion
8692 * callback function to the LOGO ELS command.
8695 * 0 - Successfully issued logo off the @vport
8696 * 1 - Failed to issue logo off the @vport
8699 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
8701 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8702 struct lpfc_hba *phba = vport->phba;
8703 struct lpfc_iocbq *elsiocb;
8707 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
8708 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
8713 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8714 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
8715 pcmd += sizeof(uint32_t);
8717 /* Fill in LOGO payload */
8718 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
8719 pcmd += sizeof(uint32_t);
8720 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
8722 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8723 "Issue LOGO npiv did:x%x flg:x%x",
8724 ndlp->nlp_DID, ndlp->nlp_flag, 0);
8726 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
8727 spin_lock_irq(shost->host_lock);
8728 ndlp->nlp_flag |= NLP_LOGO_SND;
8729 spin_unlock_irq(shost->host_lock);
8730 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
8732 spin_lock_irq(shost->host_lock);
8733 ndlp->nlp_flag &= ~NLP_LOGO_SND;
8734 spin_unlock_irq(shost->host_lock);
8735 lpfc_els_free_iocb(phba, elsiocb);
8742 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8743 * @ptr: holder for the timer function associated data.
8745 * This routine is invoked by the fabric iocb block timer after
8746 * timeout. It posts the fabric iocb block timeout event by setting the
8747 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8748 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8749 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8750 * posted event WORKER_FABRIC_BLOCK_TMO.
8753 lpfc_fabric_block_timeout(unsigned long ptr)
8755 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
8756 unsigned long iflags;
8757 uint32_t tmo_posted;
8759 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8760 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
8762 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
8763 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8766 lpfc_worker_wake_up(phba);
8771 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8772 * @phba: pointer to lpfc hba data structure.
8774 * This routine issues one fabric iocb from the driver internal list to
8775 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8776 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8777 * remove one pending fabric iocb from the driver internal list and invokes
8778 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8781 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
8783 struct lpfc_iocbq *iocb;
8784 unsigned long iflags;
8790 spin_lock_irqsave(&phba->hbalock, iflags);
8791 /* Post any pending iocb to the SLI layer */
8792 if (atomic_read(&phba->fabric_iocb_count) == 0) {
8793 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
8796 /* Increment fabric iocb count to hold the position */
8797 atomic_inc(&phba->fabric_iocb_count);
8799 spin_unlock_irqrestore(&phba->hbalock, iflags);
8801 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8802 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8803 iocb->iocb_flag |= LPFC_IO_FABRIC;
8805 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8806 "Fabric sched1: ste:x%x",
8807 iocb->vport->port_state, 0, 0);
8809 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8811 if (ret == IOCB_ERROR) {
8812 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8813 iocb->fabric_iocb_cmpl = NULL;
8814 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8816 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
8817 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
8818 iocb->iocb_cmpl(phba, iocb, iocb);
8820 atomic_dec(&phba->fabric_iocb_count);
8829 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
8830 * @phba: pointer to lpfc hba data structure.
8832 * This routine unblocks the issuing fabric iocb command. The function
8833 * will clear the fabric iocb block bit and then invoke the routine
8834 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
8835 * from the driver internal fabric iocb list.
8838 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
8840 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8842 lpfc_resume_fabric_iocbs(phba);
8847 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
8848 * @phba: pointer to lpfc hba data structure.
8850 * This routine blocks the issuing fabric iocb for a specified amount of
8851 * time (currently 100 ms). This is done by set the fabric iocb block bit
8852 * and set up a timeout timer for 100ms. When the block bit is set, no more
8853 * fabric iocb will be issued out of the HBA.
8856 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
8860 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8861 /* Start a timer to unblock fabric iocbs after 100ms */
8863 mod_timer(&phba->fabric_block_timer,
8864 jiffies + msecs_to_jiffies(100));
8870 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
8871 * @phba: pointer to lpfc hba data structure.
8872 * @cmdiocb: pointer to lpfc command iocb data structure.
8873 * @rspiocb: pointer to lpfc response iocb data structure.
8875 * This routine is the callback function that is put to the fabric iocb's
8876 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
8877 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
8878 * function first restores and invokes the original iocb's callback function
8879 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
8880 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
8883 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8884 struct lpfc_iocbq *rspiocb)
8888 if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC)
8891 switch (rspiocb->iocb.ulpStatus) {
8892 case IOSTAT_NPORT_RJT:
8893 case IOSTAT_FABRIC_RJT:
8894 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
8895 lpfc_block_fabric_iocbs(phba);
8899 case IOSTAT_NPORT_BSY:
8900 case IOSTAT_FABRIC_BSY:
8901 lpfc_block_fabric_iocbs(phba);
8905 stat.un.lsRjtError =
8906 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
8907 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
8908 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
8909 lpfc_block_fabric_iocbs(phba);
8913 if (atomic_read(&phba->fabric_iocb_count) == 0)
8916 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
8917 cmdiocb->fabric_iocb_cmpl = NULL;
8918 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
8919 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
8921 atomic_dec(&phba->fabric_iocb_count);
8922 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
8923 /* Post any pending iocbs to HBA */
8924 lpfc_resume_fabric_iocbs(phba);
8929 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
8930 * @phba: pointer to lpfc hba data structure.
8931 * @iocb: pointer to lpfc command iocb data structure.
8933 * This routine is used as the top-level API for issuing a fabric iocb command
8934 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
8935 * function makes sure that only one fabric bound iocb will be outstanding at
8936 * any given time. As such, this function will first check to see whether there
8937 * is already an outstanding fabric iocb on the wire. If so, it will put the
8938 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8939 * issued later. Otherwise, it will issue the iocb on the wire and update the
8940 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8942 * Note, this implementation has a potential sending out fabric IOCBs out of
8943 * order. The problem is caused by the construction of the "ready" boolen does
8944 * not include the condition that the internal fabric IOCB list is empty. As
8945 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8946 * ahead of the fabric IOCBs in the internal list.
8949 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8950 * IOCB_ERROR - failed to issue fabric iocb
8953 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
8955 unsigned long iflags;
8959 if (atomic_read(&phba->fabric_iocb_count) > 1)
8962 spin_lock_irqsave(&phba->hbalock, iflags);
8963 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
8964 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8967 /* Increment fabric iocb count to hold the position */
8968 atomic_inc(&phba->fabric_iocb_count);
8969 spin_unlock_irqrestore(&phba->hbalock, iflags);
8971 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8972 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8973 iocb->iocb_flag |= LPFC_IO_FABRIC;
8975 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8976 "Fabric sched2: ste:x%x",
8977 iocb->vport->port_state, 0, 0);
8979 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8981 if (ret == IOCB_ERROR) {
8982 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8983 iocb->fabric_iocb_cmpl = NULL;
8984 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8985 atomic_dec(&phba->fabric_iocb_count);
8988 spin_lock_irqsave(&phba->hbalock, iflags);
8989 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
8990 spin_unlock_irqrestore(&phba->hbalock, iflags);
8997 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8998 * @vport: pointer to a virtual N_Port data structure.
9000 * This routine aborts all the IOCBs associated with a @vport from the
9001 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
9002 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9003 * list, removes each IOCB associated with the @vport off the list, set the
9004 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9005 * associated with the IOCB.
9007 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
9009 LIST_HEAD(completions);
9010 struct lpfc_hba *phba = vport->phba;
9011 struct lpfc_iocbq *tmp_iocb, *piocb;
9013 spin_lock_irq(&phba->hbalock);
9014 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
9017 if (piocb->vport != vport)
9020 list_move_tail(&piocb->list, &completions);
9022 spin_unlock_irq(&phba->hbalock);
9024 /* Cancel all the IOCBs from the completions list */
9025 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9030 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
9031 * @ndlp: pointer to a node-list data structure.
9033 * This routine aborts all the IOCBs associated with an @ndlp from the
9034 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
9035 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9036 * list, removes each IOCB associated with the @ndlp off the list, set the
9037 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9038 * associated with the IOCB.
9040 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
9042 LIST_HEAD(completions);
9043 struct lpfc_hba *phba = ndlp->phba;
9044 struct lpfc_iocbq *tmp_iocb, *piocb;
9045 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9047 spin_lock_irq(&phba->hbalock);
9048 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
9050 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
9052 list_move_tail(&piocb->list, &completions);
9055 spin_unlock_irq(&phba->hbalock);
9057 /* Cancel all the IOCBs from the completions list */
9058 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9063 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
9064 * @phba: pointer to lpfc hba data structure.
9066 * This routine aborts all the IOCBs currently on the driver internal
9067 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
9068 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
9069 * list, removes IOCBs off the list, set the status feild to
9070 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
9073 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
9075 LIST_HEAD(completions);
9077 spin_lock_irq(&phba->hbalock);
9078 list_splice_init(&phba->fabric_iocb_list, &completions);
9079 spin_unlock_irq(&phba->hbalock);
9081 /* Cancel all the IOCBs from the completions list */
9082 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9087 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
9088 * @vport: pointer to lpfc vport data structure.
9090 * This routine is invoked by the vport cleanup for deletions and the cleanup
9091 * for an ndlp on removal.
9094 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
9096 struct lpfc_hba *phba = vport->phba;
9097 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9098 unsigned long iflag = 0;
9100 spin_lock_irqsave(&phba->hbalock, iflag);
9101 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
9102 list_for_each_entry_safe(sglq_entry, sglq_next,
9103 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9104 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
9105 sglq_entry->ndlp = NULL;
9107 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
9108 spin_unlock_irqrestore(&phba->hbalock, iflag);
9113 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
9114 * @phba: pointer to lpfc hba data structure.
9115 * @axri: pointer to the els xri abort wcqe structure.
9117 * This routine is invoked by the worker thread to process a SLI4 slow-path
9121 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
9122 struct sli4_wcqe_xri_aborted *axri)
9124 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
9125 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
9128 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9129 unsigned long iflag = 0;
9130 struct lpfc_nodelist *ndlp;
9131 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9133 spin_lock_irqsave(&phba->hbalock, iflag);
9134 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
9135 list_for_each_entry_safe(sglq_entry, sglq_next,
9136 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9137 if (sglq_entry->sli4_xritag == xri) {
9138 list_del(&sglq_entry->list);
9139 ndlp = sglq_entry->ndlp;
9140 sglq_entry->ndlp = NULL;
9141 spin_lock(&pring->ring_lock);
9142 list_add_tail(&sglq_entry->list,
9143 &phba->sli4_hba.lpfc_sgl_list);
9144 sglq_entry->state = SGL_FREED;
9145 spin_unlock(&pring->ring_lock);
9146 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
9147 spin_unlock_irqrestore(&phba->hbalock, iflag);
9148 lpfc_set_rrq_active(phba, ndlp,
9149 sglq_entry->sli4_lxritag,
9152 /* Check if TXQ queue needs to be serviced */
9153 if (!(list_empty(&pring->txq)))
9154 lpfc_worker_wake_up(phba);
9158 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
9159 lxri = lpfc_sli4_xri_inrange(phba, xri);
9160 if (lxri == NO_XRI) {
9161 spin_unlock_irqrestore(&phba->hbalock, iflag);
9164 spin_lock(&pring->ring_lock);
9165 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
9166 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
9167 spin_unlock(&pring->ring_lock);
9168 spin_unlock_irqrestore(&phba->hbalock, iflag);
9171 sglq_entry->state = SGL_XRI_ABORTED;
9172 spin_unlock(&pring->ring_lock);
9173 spin_unlock_irqrestore(&phba->hbalock, iflag);
9177 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
9178 * @vport: pointer to virtual port object.
9179 * @ndlp: nodelist pointer for the impacted node.
9181 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
9182 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
9183 * the driver is required to send a LOGO to the remote node before it
9184 * attempts to recover its login to the remote node.
9187 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
9188 struct lpfc_nodelist *ndlp)
9190 struct Scsi_Host *shost;
9191 struct lpfc_hba *phba;
9192 unsigned long flags = 0;
9194 shost = lpfc_shost_from_vport(vport);
9196 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
9197 lpfc_printf_log(phba, KERN_INFO,
9198 LOG_SLI, "3093 No rport recovery needed. "
9199 "rport in state 0x%x\n", ndlp->nlp_state);
9202 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9203 "3094 Start rport recovery on shost id 0x%x "
9204 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
9206 shost->host_no, ndlp->nlp_DID,
9207 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
9210 * The rport is not responding. Remove the FCP-2 flag to prevent
9211 * an ADISC in the follow-up recovery code.
9213 spin_lock_irqsave(shost->host_lock, flags);
9214 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
9215 spin_unlock_irqrestore(shost->host_lock, flags);
9216 lpfc_issue_els_logo(vport, ndlp, 0);
9217 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);