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);
1147 /* Mark the FCF discovery process done */
1148 if (phba->hba_flag & HBA_FIP_SUPPORT)
1149 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
1151 "2769 FLOGI to FCF (x%x) "
1152 "completed successfully\n",
1153 phba->fcf.current_rec.fcf_indx);
1154 spin_lock_irq(&phba->hbalock);
1155 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1156 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1157 spin_unlock_irq(&phba->hbalock);
1163 spin_lock_irq(&phba->hbalock);
1164 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1165 spin_unlock_irq(&phba->hbalock);
1169 if (!lpfc_error_lost_link(irsp)) {
1170 /* FLOGI failed, so just use loop map to make discovery list */
1171 lpfc_disc_list_loopmap(vport);
1173 /* Start discovery */
1174 lpfc_disc_start(vport);
1175 } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1176 (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1177 IOERR_SLI_ABORTED) &&
1178 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1179 IOERR_SLI_DOWN))) &&
1180 (phba->link_state != LPFC_CLEAR_LA)) {
1181 /* If FLOGI failed enable link interrupt. */
1182 lpfc_issue_clear_la(phba, vport);
1185 lpfc_els_free_iocb(phba, cmdiocb);
1189 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1190 * @vport: pointer to a host virtual N_Port data structure.
1191 * @ndlp: pointer to a node-list data structure.
1192 * @retry: number of retries to the command IOCB.
1194 * This routine issues a Fabric Login (FLOGI) Request ELS command
1195 * for a @vport. The initiator service parameters are put into the payload
1196 * of the FLOGI Request IOCB and the top-level callback function pointer
1197 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1198 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1199 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1201 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1202 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1203 * will be stored into the context1 field of the IOCB for the completion
1204 * callback function to the FLOGI ELS command.
1207 * 0 - successfully issued flogi iocb for @vport
1208 * 1 - failed to issue flogi iocb for @vport
1211 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1214 struct lpfc_hba *phba = vport->phba;
1215 struct serv_parm *sp;
1217 struct lpfc_iocbq *elsiocb;
1223 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1224 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1225 ndlp->nlp_DID, ELS_CMD_FLOGI);
1230 icmd = &elsiocb->iocb;
1231 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1233 /* For FLOGI request, remainder of payload is service parameters */
1234 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
1235 pcmd += sizeof(uint32_t);
1236 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1237 sp = (struct serv_parm *) pcmd;
1239 /* Setup CSPs accordingly for Fabric */
1240 sp->cmn.e_d_tov = 0;
1241 sp->cmn.w2.r_a_tov = 0;
1242 sp->cmn.virtual_fabric_support = 0;
1243 sp->cls1.classValid = 0;
1244 if (sp->cmn.fcphLow < FC_PH3)
1245 sp->cmn.fcphLow = FC_PH3;
1246 if (sp->cmn.fcphHigh < FC_PH3)
1247 sp->cmn.fcphHigh = FC_PH3;
1249 if (phba->sli_rev == LPFC_SLI_REV4) {
1250 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1251 LPFC_SLI_INTF_IF_TYPE_0) {
1252 elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
1253 elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
1254 /* FLOGI needs to be 3 for WQE FCFI */
1255 /* Set the fcfi to the fcfi we registered with */
1256 elsiocb->iocb.ulpContext = phba->fcf.fcfi;
1258 /* Can't do SLI4 class2 without support sequence coalescing */
1259 sp->cls2.classValid = 0;
1260 sp->cls2.seqDelivery = 0;
1262 /* Historical, setting sequential-delivery bit for SLI3 */
1263 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
1264 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
1265 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1266 sp->cmn.request_multiple_Nport = 1;
1267 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1271 sp->cmn.request_multiple_Nport = 0;
1274 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
1275 icmd->un.elsreq64.myID = 0;
1276 icmd->un.elsreq64.fl = 1;
1279 tmo = phba->fc_ratov;
1280 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
1281 lpfc_set_disctmo(vport);
1282 phba->fc_ratov = tmo;
1284 phba->fc_stat.elsXmitFLOGI++;
1285 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
1287 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1288 "Issue FLOGI: opt:x%x",
1289 phba->sli3_options, 0, 0);
1291 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
1292 if (rc == IOCB_ERROR) {
1293 lpfc_els_free_iocb(phba, elsiocb);
1300 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1301 * @phba: pointer to lpfc hba data structure.
1303 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1304 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1305 * list and issues an abort IOCB commond on each outstanding IOCB that
1306 * contains a active Fabric_DID ndlp. Note that this function is to issue
1307 * the abort IOCB command on all the outstanding IOCBs, thus when this
1308 * function returns, it does not guarantee all the IOCBs are actually aborted.
1311 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1314 lpfc_els_abort_flogi(struct lpfc_hba *phba)
1316 struct lpfc_sli_ring *pring;
1317 struct lpfc_iocbq *iocb, *next_iocb;
1318 struct lpfc_nodelist *ndlp;
1321 /* Abort outstanding I/O on NPort <nlp_DID> */
1322 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1323 "0201 Abort outstanding I/O on NPort x%x\n",
1326 pring = &phba->sli.ring[LPFC_ELS_RING];
1329 * Check the txcmplq for an iocb that matches the nport the driver is
1332 spin_lock_irq(&phba->hbalock);
1333 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1335 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
1336 ndlp = (struct lpfc_nodelist *)(iocb->context1);
1337 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
1338 (ndlp->nlp_DID == Fabric_DID))
1339 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1342 spin_unlock_irq(&phba->hbalock);
1348 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1349 * @vport: pointer to a host virtual N_Port data structure.
1351 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1352 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1353 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1354 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1355 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1356 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1360 * 0 - failed to issue initial flogi for @vport
1361 * 1 - successfully issued initial flogi for @vport
1364 lpfc_initial_flogi(struct lpfc_vport *vport)
1366 struct lpfc_hba *phba = vport->phba;
1367 struct lpfc_nodelist *ndlp;
1369 vport->port_state = LPFC_FLOGI;
1370 lpfc_set_disctmo(vport);
1372 /* First look for the Fabric ndlp */
1373 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1375 /* Cannot find existing Fabric ndlp, so allocate a new one */
1376 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1379 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1380 /* Set the node type */
1381 ndlp->nlp_type |= NLP_FABRIC;
1382 /* Put ndlp onto node list */
1383 lpfc_enqueue_node(vport, ndlp);
1384 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1385 /* re-setup ndlp without removing from node list */
1386 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1391 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
1392 /* This decrement of reference count to node shall kick off
1393 * the release of the node.
1402 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1403 * @vport: pointer to a host virtual N_Port data structure.
1405 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1406 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1407 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1408 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1409 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1410 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1414 * 0 - failed to issue initial fdisc for @vport
1415 * 1 - successfully issued initial fdisc for @vport
1418 lpfc_initial_fdisc(struct lpfc_vport *vport)
1420 struct lpfc_hba *phba = vport->phba;
1421 struct lpfc_nodelist *ndlp;
1423 /* First look for the Fabric ndlp */
1424 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1426 /* Cannot find existing Fabric ndlp, so allocate a new one */
1427 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1430 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1431 /* Put ndlp onto node list */
1432 lpfc_enqueue_node(vport, ndlp);
1433 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1434 /* re-setup ndlp without removing from node list */
1435 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1440 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
1441 /* decrement node reference count to trigger the release of
1451 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1452 * @vport: pointer to a host virtual N_Port data structure.
1454 * This routine checks whether there are more remaining Port Logins
1455 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1456 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1457 * to issue ELS PLOGIs up to the configured discover threads with the
1458 * @vport (@vport->cfg_discovery_threads). The function also decrement
1459 * the @vport's num_disc_node by 1 if it is not already 0.
1462 lpfc_more_plogi(struct lpfc_vport *vport)
1464 if (vport->num_disc_nodes)
1465 vport->num_disc_nodes--;
1467 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1468 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1469 "0232 Continue discovery with %d PLOGIs to go "
1470 "Data: x%x x%x x%x\n",
1471 vport->num_disc_nodes, vport->fc_plogi_cnt,
1472 vport->fc_flag, vport->port_state);
1473 /* Check to see if there are more PLOGIs to be sent */
1474 if (vport->fc_flag & FC_NLP_MORE)
1475 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1476 lpfc_els_disc_plogi(vport);
1482 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1483 * @phba: pointer to lpfc hba data structure.
1484 * @prsp: pointer to response IOCB payload.
1485 * @ndlp: pointer to a node-list data structure.
1487 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1488 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1489 * The following cases are considered N_Port confirmed:
1490 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1491 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1492 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1493 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1494 * 1) if there is a node on vport list other than the @ndlp with the same
1495 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1496 * on that node to release the RPI associated with the node; 2) if there is
1497 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1498 * into, a new node shall be allocated (or activated). In either case, the
1499 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1500 * be released and the new_ndlp shall be put on to the vport node list and
1501 * its pointer returned as the confirmed node.
1503 * Note that before the @ndlp got "released", the keepDID from not-matching
1504 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1505 * of the @ndlp. This is because the release of @ndlp is actually to put it
1506 * into an inactive state on the vport node list and the vport node list
1507 * management algorithm does not allow two node with a same DID.
1510 * pointer to the PLOGI N_Port @ndlp
1512 static struct lpfc_nodelist *
1513 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
1514 struct lpfc_nodelist *ndlp)
1516 struct lpfc_vport *vport = ndlp->vport;
1517 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1518 struct lpfc_nodelist *new_ndlp;
1519 struct lpfc_rport_data *rdata;
1520 struct fc_rport *rport;
1521 struct serv_parm *sp;
1522 uint8_t name[sizeof(struct lpfc_name)];
1523 uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
1524 uint16_t keep_nlp_state;
1527 unsigned long *active_rrqs_xri_bitmap = NULL;
1529 /* Fabric nodes can have the same WWPN so we don't bother searching
1530 * by WWPN. Just return the ndlp that was given to us.
1532 if (ndlp->nlp_type & NLP_FABRIC)
1535 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
1536 memset(name, 0, sizeof(struct lpfc_name));
1538 /* Now we find out if the NPort we are logging into, matches the WWPN
1539 * we have for that ndlp. If not, we have some work to do.
1541 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
1543 if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp))
1545 if (phba->sli_rev == LPFC_SLI_REV4) {
1546 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1548 if (active_rrqs_xri_bitmap)
1549 memset(active_rrqs_xri_bitmap, 0,
1550 phba->cfg_rrq_xri_bitmap_sz);
1553 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1554 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1555 ndlp, ndlp->nlp_DID, new_ndlp);
1558 rc = memcmp(&ndlp->nlp_portname, name,
1559 sizeof(struct lpfc_name));
1561 if (active_rrqs_xri_bitmap)
1562 mempool_free(active_rrqs_xri_bitmap,
1563 phba->active_rrq_pool);
1566 new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1568 if (active_rrqs_xri_bitmap)
1569 mempool_free(active_rrqs_xri_bitmap,
1570 phba->active_rrq_pool);
1573 lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID);
1574 } else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
1575 rc = memcmp(&ndlp->nlp_portname, name,
1576 sizeof(struct lpfc_name));
1578 if (active_rrqs_xri_bitmap)
1579 mempool_free(active_rrqs_xri_bitmap,
1580 phba->active_rrq_pool);
1583 new_ndlp = lpfc_enable_node(vport, new_ndlp,
1584 NLP_STE_UNUSED_NODE);
1586 if (active_rrqs_xri_bitmap)
1587 mempool_free(active_rrqs_xri_bitmap,
1588 phba->active_rrq_pool);
1591 keepDID = new_ndlp->nlp_DID;
1592 if ((phba->sli_rev == LPFC_SLI_REV4) && active_rrqs_xri_bitmap)
1593 memcpy(active_rrqs_xri_bitmap,
1594 new_ndlp->active_rrqs_xri_bitmap,
1595 phba->cfg_rrq_xri_bitmap_sz);
1597 keepDID = new_ndlp->nlp_DID;
1598 if (phba->sli_rev == LPFC_SLI_REV4 &&
1599 active_rrqs_xri_bitmap)
1600 memcpy(active_rrqs_xri_bitmap,
1601 new_ndlp->active_rrqs_xri_bitmap,
1602 phba->cfg_rrq_xri_bitmap_sz);
1605 lpfc_unreg_rpi(vport, new_ndlp);
1606 new_ndlp->nlp_DID = ndlp->nlp_DID;
1607 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
1608 if (phba->sli_rev == LPFC_SLI_REV4)
1609 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1610 ndlp->active_rrqs_xri_bitmap,
1611 phba->cfg_rrq_xri_bitmap_sz);
1613 spin_lock_irq(shost->host_lock);
1614 keep_nlp_flag = new_ndlp->nlp_flag;
1615 new_ndlp->nlp_flag = ndlp->nlp_flag;
1616 ndlp->nlp_flag = keep_nlp_flag;
1617 spin_unlock_irq(shost->host_lock);
1619 /* Set nlp_states accordingly */
1620 keep_nlp_state = new_ndlp->nlp_state;
1621 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
1623 /* Move this back to NPR state */
1624 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1625 /* The new_ndlp is replacing ndlp totally, so we need
1626 * to put ndlp on UNUSED list and try to free it.
1628 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1629 "3179 PLOGI confirm NEW: %x %x\n",
1630 new_ndlp->nlp_DID, keepDID);
1632 /* Fix up the rport accordingly */
1633 rport = ndlp->rport;
1635 rdata = rport->dd_data;
1636 if (rdata->pnode == ndlp) {
1637 /* break the link before dropping the ref */
1640 rdata->pnode = lpfc_nlp_get(new_ndlp);
1641 new_ndlp->rport = rport;
1643 new_ndlp->nlp_type = ndlp->nlp_type;
1645 /* We shall actually free the ndlp with both nlp_DID and
1646 * nlp_portname fields equals 0 to avoid any ndlp on the
1647 * nodelist never to be used.
1649 if (ndlp->nlp_DID == 0) {
1650 spin_lock_irq(&phba->ndlp_lock);
1651 NLP_SET_FREE_REQ(ndlp);
1652 spin_unlock_irq(&phba->ndlp_lock);
1655 /* Two ndlps cannot have the same did on the nodelist */
1656 ndlp->nlp_DID = keepDID;
1657 if (phba->sli_rev == LPFC_SLI_REV4 &&
1658 active_rrqs_xri_bitmap)
1659 memcpy(ndlp->active_rrqs_xri_bitmap,
1660 active_rrqs_xri_bitmap,
1661 phba->cfg_rrq_xri_bitmap_sz);
1663 if (!NLP_CHK_NODE_ACT(ndlp))
1664 lpfc_drop_node(vport, ndlp);
1667 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1668 "3180 PLOGI confirm SWAP: %x %x\n",
1669 new_ndlp->nlp_DID, keepDID);
1671 lpfc_unreg_rpi(vport, ndlp);
1673 /* Two ndlps cannot have the same did */
1674 ndlp->nlp_DID = keepDID;
1675 if (phba->sli_rev == LPFC_SLI_REV4 &&
1676 active_rrqs_xri_bitmap)
1677 memcpy(ndlp->active_rrqs_xri_bitmap,
1678 active_rrqs_xri_bitmap,
1679 phba->cfg_rrq_xri_bitmap_sz);
1681 /* Since we are switching over to the new_ndlp,
1682 * reset the old ndlp state
1684 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1685 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
1686 keep_nlp_state = NLP_STE_NPR_NODE;
1687 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1689 /* Fix up the rport accordingly */
1690 rport = ndlp->rport;
1692 rdata = rport->dd_data;
1693 put_node = rdata->pnode != NULL;
1694 put_rport = ndlp->rport != NULL;
1695 rdata->pnode = NULL;
1700 put_device(&rport->dev);
1703 if (phba->sli_rev == LPFC_SLI_REV4 &&
1704 active_rrqs_xri_bitmap)
1705 mempool_free(active_rrqs_xri_bitmap,
1706 phba->active_rrq_pool);
1711 * lpfc_end_rscn - Check and handle more rscn for a vport
1712 * @vport: pointer to a host virtual N_Port data structure.
1714 * This routine checks whether more Registration State Change
1715 * Notifications (RSCNs) came in while the discovery state machine was in
1716 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1717 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1718 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1719 * handling the RSCNs.
1722 lpfc_end_rscn(struct lpfc_vport *vport)
1724 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1726 if (vport->fc_flag & FC_RSCN_MODE) {
1728 * Check to see if more RSCNs came in while we were
1729 * processing this one.
1731 if (vport->fc_rscn_id_cnt ||
1732 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1733 lpfc_els_handle_rscn(vport);
1735 spin_lock_irq(shost->host_lock);
1736 vport->fc_flag &= ~FC_RSCN_MODE;
1737 spin_unlock_irq(shost->host_lock);
1743 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1744 * @phba: pointer to lpfc hba data structure.
1745 * @cmdiocb: pointer to lpfc command iocb data structure.
1746 * @rspiocb: pointer to lpfc response iocb data structure.
1748 * This routine will call the clear rrq function to free the rrq and
1749 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1750 * exist then the clear_rrq is still called because the rrq needs to
1755 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1756 struct lpfc_iocbq *rspiocb)
1758 struct lpfc_vport *vport = cmdiocb->vport;
1760 struct lpfc_nodelist *ndlp;
1761 struct lpfc_node_rrq *rrq;
1763 /* we pass cmdiocb to state machine which needs rspiocb as well */
1764 rrq = cmdiocb->context_un.rrq;
1765 cmdiocb->context_un.rsp_iocb = rspiocb;
1767 irsp = &rspiocb->iocb;
1768 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1769 "RRQ cmpl: status:x%x/x%x did:x%x",
1770 irsp->ulpStatus, irsp->un.ulpWord[4],
1771 irsp->un.elsreq64.remoteID);
1773 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1774 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) {
1775 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1776 "2882 RRQ completes to NPort x%x "
1777 "with no ndlp. Data: x%x x%x x%x\n",
1778 irsp->un.elsreq64.remoteID,
1779 irsp->ulpStatus, irsp->un.ulpWord[4],
1784 /* rrq completes to NPort <nlp_DID> */
1785 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1786 "2880 RRQ completes to NPort x%x "
1787 "Data: x%x x%x x%x x%x x%x\n",
1788 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1789 irsp->ulpTimeout, rrq->xritag, rrq->rxid);
1791 if (irsp->ulpStatus) {
1792 /* Check for retry */
1793 /* RRQ failed Don't print the vport to vport rjts */
1794 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1795 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1796 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1797 (phba)->pport->cfg_log_verbose & LOG_ELS)
1798 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1799 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1800 ndlp->nlp_DID, irsp->ulpStatus,
1801 irsp->un.ulpWord[4]);
1805 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1806 lpfc_els_free_iocb(phba, cmdiocb);
1810 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1811 * @phba: pointer to lpfc hba data structure.
1812 * @cmdiocb: pointer to lpfc command iocb data structure.
1813 * @rspiocb: pointer to lpfc response iocb data structure.
1815 * This routine is the completion callback function for issuing the Port
1816 * Login (PLOGI) command. For PLOGI completion, there must be an active
1817 * ndlp on the vport node list that matches the remote node ID from the
1818 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1819 * ignored and command IOCB released. The PLOGI response IOCB status is
1820 * checked for error conditons. If there is error status reported, PLOGI
1821 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1822 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1823 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1824 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1825 * there are additional N_Port nodes with the vport that need to perform
1826 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1830 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1831 struct lpfc_iocbq *rspiocb)
1833 struct lpfc_vport *vport = cmdiocb->vport;
1834 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1836 struct lpfc_nodelist *ndlp;
1837 struct lpfc_dmabuf *prsp;
1840 /* we pass cmdiocb to state machine which needs rspiocb as well */
1841 cmdiocb->context_un.rsp_iocb = rspiocb;
1843 irsp = &rspiocb->iocb;
1844 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1845 "PLOGI cmpl: status:x%x/x%x did:x%x",
1846 irsp->ulpStatus, irsp->un.ulpWord[4],
1847 irsp->un.elsreq64.remoteID);
1849 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1850 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
1851 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1852 "0136 PLOGI completes to NPort x%x "
1853 "with no ndlp. Data: x%x x%x x%x\n",
1854 irsp->un.elsreq64.remoteID,
1855 irsp->ulpStatus, irsp->un.ulpWord[4],
1860 /* Since ndlp can be freed in the disc state machine, note if this node
1861 * is being used during discovery.
1863 spin_lock_irq(shost->host_lock);
1864 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1865 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1866 spin_unlock_irq(shost->host_lock);
1869 /* PLOGI completes to NPort <nlp_DID> */
1870 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1871 "0102 PLOGI completes to NPort x%x "
1872 "Data: x%x x%x x%x x%x x%x\n",
1873 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1874 irsp->ulpTimeout, disc, vport->num_disc_nodes);
1875 /* Check to see if link went down during discovery */
1876 if (lpfc_els_chk_latt(vport)) {
1877 spin_lock_irq(shost->host_lock);
1878 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1879 spin_unlock_irq(shost->host_lock);
1883 if (irsp->ulpStatus) {
1884 /* Check for retry */
1885 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1886 /* ELS command is being retried */
1888 spin_lock_irq(shost->host_lock);
1889 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1890 spin_unlock_irq(shost->host_lock);
1894 /* PLOGI failed Don't print the vport to vport rjts */
1895 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1896 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1897 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1898 (phba)->pport->cfg_log_verbose & LOG_ELS)
1899 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1900 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1901 ndlp->nlp_DID, irsp->ulpStatus,
1902 irsp->un.ulpWord[4]);
1903 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1904 if (lpfc_error_lost_link(irsp))
1905 rc = NLP_STE_FREED_NODE;
1907 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1908 NLP_EVT_CMPL_PLOGI);
1910 /* Good status, call state machine */
1911 prsp = list_entry(((struct lpfc_dmabuf *)
1912 cmdiocb->context2)->list.next,
1913 struct lpfc_dmabuf, list);
1914 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
1915 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1916 NLP_EVT_CMPL_PLOGI);
1919 if (disc && vport->num_disc_nodes) {
1920 /* Check to see if there are more PLOGIs to be sent */
1921 lpfc_more_plogi(vport);
1923 if (vport->num_disc_nodes == 0) {
1924 spin_lock_irq(shost->host_lock);
1925 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1926 spin_unlock_irq(shost->host_lock);
1928 lpfc_can_disctmo(vport);
1929 lpfc_end_rscn(vport);
1934 lpfc_els_free_iocb(phba, cmdiocb);
1939 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1940 * @vport: pointer to a host virtual N_Port data structure.
1941 * @did: destination port identifier.
1942 * @retry: number of retries to the command IOCB.
1944 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1945 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1946 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1947 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1948 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1950 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1951 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1952 * will be stored into the context1 field of the IOCB for the completion
1953 * callback function to the PLOGI ELS command.
1956 * 0 - Successfully issued a plogi for @vport
1957 * 1 - failed to issue a plogi for @vport
1960 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
1962 struct lpfc_hba *phba = vport->phba;
1963 struct serv_parm *sp;
1964 struct lpfc_nodelist *ndlp;
1965 struct lpfc_iocbq *elsiocb;
1970 ndlp = lpfc_findnode_did(vport, did);
1971 if (ndlp && !NLP_CHK_NODE_ACT(ndlp))
1974 /* If ndlp is not NULL, we will bump the reference count on it */
1975 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1976 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
1981 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1983 /* For PLOGI request, remainder of payload is service parameters */
1984 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
1985 pcmd += sizeof(uint32_t);
1986 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1987 sp = (struct serv_parm *) pcmd;
1990 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1991 * to device on remote loops work.
1993 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
1994 sp->cmn.altBbCredit = 1;
1996 if (sp->cmn.fcphLow < FC_PH_4_3)
1997 sp->cmn.fcphLow = FC_PH_4_3;
1999 if (sp->cmn.fcphHigh < FC_PH3)
2000 sp->cmn.fcphHigh = FC_PH3;
2002 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2003 "Issue PLOGI: did:x%x",
2006 phba->fc_stat.elsXmitPLOGI++;
2007 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
2008 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2010 if (ret == IOCB_ERROR) {
2011 lpfc_els_free_iocb(phba, elsiocb);
2018 * lpfc_cmpl_els_prli - Completion callback function for prli
2019 * @phba: pointer to lpfc hba data structure.
2020 * @cmdiocb: pointer to lpfc command iocb data structure.
2021 * @rspiocb: pointer to lpfc response iocb data structure.
2023 * This routine is the completion callback function for a Process Login
2024 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2025 * status. If there is error status reported, PRLI retry shall be attempted
2026 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2027 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2028 * ndlp to mark the PRLI completion.
2031 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2032 struct lpfc_iocbq *rspiocb)
2034 struct lpfc_vport *vport = cmdiocb->vport;
2035 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2037 struct lpfc_nodelist *ndlp;
2039 /* we pass cmdiocb to state machine which needs rspiocb as well */
2040 cmdiocb->context_un.rsp_iocb = rspiocb;
2042 irsp = &(rspiocb->iocb);
2043 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2044 spin_lock_irq(shost->host_lock);
2045 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2046 spin_unlock_irq(shost->host_lock);
2048 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2049 "PRLI cmpl: status:x%x/x%x did:x%x",
2050 irsp->ulpStatus, irsp->un.ulpWord[4],
2052 /* PRLI completes to NPort <nlp_DID> */
2053 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2054 "0103 PRLI completes to NPort x%x "
2055 "Data: x%x x%x x%x x%x\n",
2056 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2057 irsp->ulpTimeout, vport->num_disc_nodes);
2059 vport->fc_prli_sent--;
2060 /* Check to see if link went down during discovery */
2061 if (lpfc_els_chk_latt(vport))
2064 if (irsp->ulpStatus) {
2065 /* Check for retry */
2066 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2067 /* ELS command is being retried */
2071 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2072 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
2073 ndlp->nlp_DID, irsp->ulpStatus,
2074 irsp->un.ulpWord[4]);
2075 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2076 if (lpfc_error_lost_link(irsp))
2079 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2082 /* Good status, call state machine */
2083 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2086 lpfc_els_free_iocb(phba, cmdiocb);
2091 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2092 * @vport: pointer to a host virtual N_Port data structure.
2093 * @ndlp: pointer to a node-list data structure.
2094 * @retry: number of retries to the command IOCB.
2096 * This routine issues a Process Login (PRLI) ELS command for the
2097 * @vport. The PRLI service parameters are set up in the payload of the
2098 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2099 * is put to the IOCB completion callback func field before invoking the
2100 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2102 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2103 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2104 * will be stored into the context1 field of the IOCB for the completion
2105 * callback function to the PRLI ELS command.
2108 * 0 - successfully issued prli iocb command for @vport
2109 * 1 - failed to issue prli iocb command for @vport
2112 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2115 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2116 struct lpfc_hba *phba = vport->phba;
2118 struct lpfc_iocbq *elsiocb;
2122 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2123 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2124 ndlp->nlp_DID, ELS_CMD_PRLI);
2128 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2130 /* For PRLI request, remainder of payload is service parameters */
2131 memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t)));
2132 *((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
2133 pcmd += sizeof(uint32_t);
2135 /* For PRLI, remainder of payload is PRLI parameter page */
2136 npr = (PRLI *) pcmd;
2138 * If our firmware version is 3.20 or later,
2139 * set the following bits for FC-TAPE support.
2141 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2142 npr->ConfmComplAllowed = 1;
2144 npr->TaskRetryIdReq = 1;
2146 npr->estabImagePair = 1;
2147 npr->readXferRdyDis = 1;
2148 if (vport->cfg_first_burst_size)
2149 npr->writeXferRdyDis = 1;
2151 /* For FCP support */
2152 npr->prliType = PRLI_FCP_TYPE;
2153 npr->initiatorFunc = 1;
2155 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2156 "Issue PRLI: did:x%x",
2157 ndlp->nlp_DID, 0, 0);
2159 phba->fc_stat.elsXmitPRLI++;
2160 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
2161 spin_lock_irq(shost->host_lock);
2162 ndlp->nlp_flag |= NLP_PRLI_SND;
2163 spin_unlock_irq(shost->host_lock);
2164 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2166 spin_lock_irq(shost->host_lock);
2167 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2168 spin_unlock_irq(shost->host_lock);
2169 lpfc_els_free_iocb(phba, elsiocb);
2172 vport->fc_prli_sent++;
2177 * lpfc_rscn_disc - Perform rscn discovery for a vport
2178 * @vport: pointer to a host virtual N_Port data structure.
2180 * This routine performs Registration State Change Notification (RSCN)
2181 * discovery for a @vport. If the @vport's node port recovery count is not
2182 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2183 * the nodes that need recovery. If none of the PLOGI were needed through
2184 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2185 * invoked to check and handle possible more RSCN came in during the period
2186 * of processing the current ones.
2189 lpfc_rscn_disc(struct lpfc_vport *vport)
2191 lpfc_can_disctmo(vport);
2193 /* RSCN discovery */
2194 /* go thru NPR nodes and issue ELS PLOGIs */
2195 if (vport->fc_npr_cnt)
2196 if (lpfc_els_disc_plogi(vport))
2199 lpfc_end_rscn(vport);
2203 * lpfc_adisc_done - Complete the adisc phase of discovery
2204 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2206 * This function is called when the final ADISC is completed during discovery.
2207 * This function handles clearing link attention or issuing reg_vpi depending
2208 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2210 * This function is called with no locks held.
2213 lpfc_adisc_done(struct lpfc_vport *vport)
2215 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2216 struct lpfc_hba *phba = vport->phba;
2219 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2220 * and continue discovery.
2222 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2223 !(vport->fc_flag & FC_RSCN_MODE) &&
2224 (phba->sli_rev < LPFC_SLI_REV4)) {
2225 /* The ADISCs are complete. Doesn't matter if they
2226 * succeeded or failed because the ADISC completion
2227 * routine guarantees to call the state machine and
2228 * the RPI is either unregistered (failed ADISC response)
2229 * or the RPI is still valid and the node is marked
2230 * mapped for a target. The exchanges should be in the
2231 * correct state. This code is specific to SLI3.
2233 lpfc_issue_clear_la(phba, vport);
2234 lpfc_issue_reg_vpi(phba, vport);
2238 * For SLI2, we need to set port_state to READY
2239 * and continue discovery.
2241 if (vport->port_state < LPFC_VPORT_READY) {
2242 /* If we get here, there is nothing to ADISC */
2243 lpfc_issue_clear_la(phba, vport);
2244 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2245 vport->num_disc_nodes = 0;
2246 /* go thru NPR list, issue ELS PLOGIs */
2247 if (vport->fc_npr_cnt)
2248 lpfc_els_disc_plogi(vport);
2249 if (!vport->num_disc_nodes) {
2250 spin_lock_irq(shost->host_lock);
2251 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2252 spin_unlock_irq(shost->host_lock);
2253 lpfc_can_disctmo(vport);
2254 lpfc_end_rscn(vport);
2257 vport->port_state = LPFC_VPORT_READY;
2259 lpfc_rscn_disc(vport);
2263 * lpfc_more_adisc - Issue more adisc as needed
2264 * @vport: pointer to a host virtual N_Port data structure.
2266 * This routine determines whether there are more ndlps on a @vport
2267 * node list need to have Address Discover (ADISC) issued. If so, it will
2268 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2269 * remaining nodes which need to have ADISC sent.
2272 lpfc_more_adisc(struct lpfc_vport *vport)
2274 if (vport->num_disc_nodes)
2275 vport->num_disc_nodes--;
2276 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2277 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2278 "0210 Continue discovery with %d ADISCs to go "
2279 "Data: x%x x%x x%x\n",
2280 vport->num_disc_nodes, vport->fc_adisc_cnt,
2281 vport->fc_flag, vport->port_state);
2282 /* Check to see if there are more ADISCs to be sent */
2283 if (vport->fc_flag & FC_NLP_MORE) {
2284 lpfc_set_disctmo(vport);
2285 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2286 lpfc_els_disc_adisc(vport);
2288 if (!vport->num_disc_nodes)
2289 lpfc_adisc_done(vport);
2294 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2295 * @phba: pointer to lpfc hba data structure.
2296 * @cmdiocb: pointer to lpfc command iocb data structure.
2297 * @rspiocb: pointer to lpfc response iocb data structure.
2299 * This routine is the completion function for issuing the Address Discover
2300 * (ADISC) command. It first checks to see whether link went down during
2301 * the discovery process. If so, the node will be marked as node port
2302 * recovery for issuing discover IOCB by the link attention handler and
2303 * exit. Otherwise, the response status is checked. If error was reported
2304 * in the response status, the ADISC command shall be retried by invoking
2305 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2306 * the response status, the state machine is invoked to set transition
2307 * with respect to NLP_EVT_CMPL_ADISC event.
2310 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2311 struct lpfc_iocbq *rspiocb)
2313 struct lpfc_vport *vport = cmdiocb->vport;
2314 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2316 struct lpfc_nodelist *ndlp;
2319 /* we pass cmdiocb to state machine which needs rspiocb as well */
2320 cmdiocb->context_un.rsp_iocb = rspiocb;
2322 irsp = &(rspiocb->iocb);
2323 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2325 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2326 "ADISC cmpl: status:x%x/x%x did:x%x",
2327 irsp->ulpStatus, irsp->un.ulpWord[4],
2330 /* Since ndlp can be freed in the disc state machine, note if this node
2331 * is being used during discovery.
2333 spin_lock_irq(shost->host_lock);
2334 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2335 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2336 spin_unlock_irq(shost->host_lock);
2337 /* ADISC completes to NPort <nlp_DID> */
2338 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2339 "0104 ADISC completes to NPort x%x "
2340 "Data: x%x x%x x%x x%x x%x\n",
2341 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2342 irsp->ulpTimeout, disc, vport->num_disc_nodes);
2343 /* Check to see if link went down during discovery */
2344 if (lpfc_els_chk_latt(vport)) {
2345 spin_lock_irq(shost->host_lock);
2346 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2347 spin_unlock_irq(shost->host_lock);
2351 if (irsp->ulpStatus) {
2352 /* Check for retry */
2353 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2354 /* ELS command is being retried */
2356 spin_lock_irq(shost->host_lock);
2357 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2358 spin_unlock_irq(shost->host_lock);
2359 lpfc_set_disctmo(vport);
2364 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2365 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2366 ndlp->nlp_DID, irsp->ulpStatus,
2367 irsp->un.ulpWord[4]);
2368 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2369 if (!lpfc_error_lost_link(irsp))
2370 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2371 NLP_EVT_CMPL_ADISC);
2373 /* Good status, call state machine */
2374 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2375 NLP_EVT_CMPL_ADISC);
2377 /* Check to see if there are more ADISCs to be sent */
2378 if (disc && vport->num_disc_nodes)
2379 lpfc_more_adisc(vport);
2381 lpfc_els_free_iocb(phba, cmdiocb);
2386 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2387 * @vport: pointer to a virtual N_Port data structure.
2388 * @ndlp: pointer to a node-list data structure.
2389 * @retry: number of retries to the command IOCB.
2391 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2392 * @vport. It prepares the payload of the ADISC ELS command, updates the
2393 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2394 * to issue the ADISC ELS command.
2396 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2397 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2398 * will be stored into the context1 field of the IOCB for the completion
2399 * callback function to the ADISC ELS command.
2402 * 0 - successfully issued adisc
2403 * 1 - failed to issue adisc
2406 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2409 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2410 struct lpfc_hba *phba = vport->phba;
2412 struct lpfc_iocbq *elsiocb;
2416 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2417 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2418 ndlp->nlp_DID, ELS_CMD_ADISC);
2422 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2424 /* For ADISC request, remainder of payload is service parameters */
2425 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
2426 pcmd += sizeof(uint32_t);
2428 /* Fill in ADISC payload */
2429 ap = (ADISC *) pcmd;
2430 ap->hardAL_PA = phba->fc_pref_ALPA;
2431 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2432 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2433 ap->DID = be32_to_cpu(vport->fc_myDID);
2435 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2436 "Issue ADISC: did:x%x",
2437 ndlp->nlp_DID, 0, 0);
2439 phba->fc_stat.elsXmitADISC++;
2440 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
2441 spin_lock_irq(shost->host_lock);
2442 ndlp->nlp_flag |= NLP_ADISC_SND;
2443 spin_unlock_irq(shost->host_lock);
2444 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2446 spin_lock_irq(shost->host_lock);
2447 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2448 spin_unlock_irq(shost->host_lock);
2449 lpfc_els_free_iocb(phba, elsiocb);
2456 * lpfc_cmpl_els_logo - Completion callback function for logo
2457 * @phba: pointer to lpfc hba data structure.
2458 * @cmdiocb: pointer to lpfc command iocb data structure.
2459 * @rspiocb: pointer to lpfc response iocb data structure.
2461 * This routine is the completion function for issuing the ELS Logout (LOGO)
2462 * command. If no error status was reported from the LOGO response, the
2463 * state machine of the associated ndlp shall be invoked for transition with
2464 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2465 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2468 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2469 struct lpfc_iocbq *rspiocb)
2471 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2472 struct lpfc_vport *vport = ndlp->vport;
2473 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2475 struct lpfcMboxq *mbox;
2476 unsigned long flags;
2477 uint32_t skip_recovery = 0;
2479 /* we pass cmdiocb to state machine which needs rspiocb as well */
2480 cmdiocb->context_un.rsp_iocb = rspiocb;
2482 irsp = &(rspiocb->iocb);
2483 spin_lock_irq(shost->host_lock);
2484 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2485 spin_unlock_irq(shost->host_lock);
2487 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2488 "LOGO cmpl: status:x%x/x%x did:x%x",
2489 irsp->ulpStatus, irsp->un.ulpWord[4],
2492 /* LOGO completes to NPort <nlp_DID> */
2493 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2494 "0105 LOGO completes to NPort x%x "
2495 "Data: x%x x%x x%x x%x\n",
2496 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2497 irsp->ulpTimeout, vport->num_disc_nodes);
2499 if (lpfc_els_chk_latt(vport)) {
2504 /* Check to see if link went down during discovery */
2505 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
2506 /* NLP_EVT_DEVICE_RM should unregister the RPI
2507 * which should abort all outstanding IOs.
2509 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2515 if (irsp->ulpStatus) {
2516 /* Check for retry */
2517 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2518 /* ELS command is being retried */
2523 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2524 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2525 ndlp->nlp_DID, irsp->ulpStatus,
2526 irsp->un.ulpWord[4]);
2527 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2528 if (lpfc_error_lost_link(irsp)) {
2534 /* Call state machine. This will unregister the rpi if needed. */
2535 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
2538 lpfc_els_free_iocb(phba, cmdiocb);
2539 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2540 if ((vport->fc_flag & FC_PT2PT) &&
2541 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
2542 phba->pport->fc_myDID = 0;
2543 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2545 lpfc_config_link(phba, mbox);
2546 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2547 mbox->vport = vport;
2548 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
2550 mempool_free(mbox, phba->mbox_mem_pool);
2557 * If the node is a target, the handling attempts to recover the port.
2558 * For any other port type, the rpi is unregistered as an implicit
2561 if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
2562 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2563 spin_lock_irqsave(shost->host_lock, flags);
2564 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2565 spin_unlock_irqrestore(shost->host_lock, flags);
2567 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2568 "3187 LOGO completes to NPort x%x: Start "
2569 "Recovery Data: x%x x%x x%x x%x\n",
2570 ndlp->nlp_DID, irsp->ulpStatus,
2571 irsp->un.ulpWord[4], irsp->ulpTimeout,
2572 vport->num_disc_nodes);
2573 lpfc_disc_start(vport);
2579 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2580 * @vport: pointer to a virtual N_Port data structure.
2581 * @ndlp: pointer to a node-list data structure.
2582 * @retry: number of retries to the command IOCB.
2584 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2585 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2586 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2587 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2589 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2590 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2591 * will be stored into the context1 field of the IOCB for the completion
2592 * callback function to the LOGO ELS command.
2595 * 0 - successfully issued logo
2596 * 1 - failed to issue logo
2599 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2602 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2603 struct lpfc_hba *phba = vport->phba;
2604 struct lpfc_iocbq *elsiocb;
2609 spin_lock_irq(shost->host_lock);
2610 if (ndlp->nlp_flag & NLP_LOGO_SND) {
2611 spin_unlock_irq(shost->host_lock);
2614 spin_unlock_irq(shost->host_lock);
2616 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
2617 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2618 ndlp->nlp_DID, ELS_CMD_LOGO);
2622 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2623 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
2624 pcmd += sizeof(uint32_t);
2626 /* Fill in LOGO payload */
2627 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
2628 pcmd += sizeof(uint32_t);
2629 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
2631 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2632 "Issue LOGO: did:x%x",
2633 ndlp->nlp_DID, 0, 0);
2636 * If we are issuing a LOGO, we may try to recover the remote NPort
2637 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2638 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2639 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2640 * for that ELS cmd. To avoid this situation, lets get rid of the
2641 * RPI right now, before any ELS cmds are sent.
2643 spin_lock_irq(shost->host_lock);
2644 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
2645 spin_unlock_irq(shost->host_lock);
2646 if (lpfc_unreg_rpi(vport, ndlp)) {
2647 lpfc_els_free_iocb(phba, elsiocb);
2651 phba->fc_stat.elsXmitLOGO++;
2652 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
2653 spin_lock_irq(shost->host_lock);
2654 ndlp->nlp_flag |= NLP_LOGO_SND;
2655 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
2656 spin_unlock_irq(shost->host_lock);
2657 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2659 if (rc == IOCB_ERROR) {
2660 spin_lock_irq(shost->host_lock);
2661 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2662 spin_unlock_irq(shost->host_lock);
2663 lpfc_els_free_iocb(phba, elsiocb);
2670 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2671 * @phba: pointer to lpfc hba data structure.
2672 * @cmdiocb: pointer to lpfc command iocb data structure.
2673 * @rspiocb: pointer to lpfc response iocb data structure.
2675 * This routine is a generic completion callback function for ELS commands.
2676 * Specifically, it is the callback function which does not need to perform
2677 * any command specific operations. It is currently used by the ELS command
2678 * issuing routines for the ELS State Change Request (SCR),
2679 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2680 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2681 * certain debug loggings, this callback function simply invokes the
2682 * lpfc_els_chk_latt() routine to check whether link went down during the
2683 * discovery process.
2686 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2687 struct lpfc_iocbq *rspiocb)
2689 struct lpfc_vport *vport = cmdiocb->vport;
2692 irsp = &rspiocb->iocb;
2694 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2695 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2696 irsp->ulpStatus, irsp->un.ulpWord[4],
2697 irsp->un.elsreq64.remoteID);
2698 /* ELS cmd tag <ulpIoTag> completes */
2699 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2700 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2701 irsp->ulpIoTag, irsp->ulpStatus,
2702 irsp->un.ulpWord[4], irsp->ulpTimeout);
2703 /* Check to see if link went down during discovery */
2704 lpfc_els_chk_latt(vport);
2705 lpfc_els_free_iocb(phba, cmdiocb);
2710 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2711 * @vport: pointer to a host virtual N_Port data structure.
2712 * @nportid: N_Port identifier to the remote node.
2713 * @retry: number of retries to the command IOCB.
2715 * This routine issues a State Change Request (SCR) to a fabric node
2716 * on a @vport. The remote node @nportid is passed into the function. It
2717 * first search the @vport node list to find the matching ndlp. If no such
2718 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2719 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2720 * routine is invoked to send the SCR IOCB.
2722 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2723 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2724 * will be stored into the context1 field of the IOCB for the completion
2725 * callback function to the SCR ELS command.
2728 * 0 - Successfully issued scr command
2729 * 1 - Failed to issue scr command
2732 lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2734 struct lpfc_hba *phba = vport->phba;
2735 struct lpfc_iocbq *elsiocb;
2738 struct lpfc_nodelist *ndlp;
2740 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
2742 ndlp = lpfc_findnode_did(vport, nportid);
2744 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2747 lpfc_nlp_init(vport, ndlp, nportid);
2748 lpfc_enqueue_node(vport, ndlp);
2749 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2750 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2755 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2756 ndlp->nlp_DID, ELS_CMD_SCR);
2759 /* This will trigger the release of the node just
2766 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2768 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
2769 pcmd += sizeof(uint32_t);
2771 /* For SCR, remainder of payload is SCR parameter page */
2772 memset(pcmd, 0, sizeof(SCR));
2773 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
2775 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2776 "Issue SCR: did:x%x",
2777 ndlp->nlp_DID, 0, 0);
2779 phba->fc_stat.elsXmitSCR++;
2780 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2781 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2783 /* The additional lpfc_nlp_put will cause the following
2784 * lpfc_els_free_iocb routine to trigger the rlease of
2788 lpfc_els_free_iocb(phba, elsiocb);
2791 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2792 * trigger the release of node.
2800 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2801 * @vport: pointer to a host virtual N_Port data structure.
2802 * @nportid: N_Port identifier to the remote node.
2803 * @retry: number of retries to the command IOCB.
2805 * This routine issues a Fibre Channel Address Resolution Response
2806 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2807 * is passed into the function. It first search the @vport node list to find
2808 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2809 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2810 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2812 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2813 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2814 * will be stored into the context1 field of the IOCB for the completion
2815 * callback function to the PARPR ELS command.
2818 * 0 - Successfully issued farpr command
2819 * 1 - Failed to issue farpr command
2822 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2824 struct lpfc_hba *phba = vport->phba;
2825 struct lpfc_iocbq *elsiocb;
2830 struct lpfc_nodelist *ondlp;
2831 struct lpfc_nodelist *ndlp;
2833 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
2835 ndlp = lpfc_findnode_did(vport, nportid);
2837 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2840 lpfc_nlp_init(vport, ndlp, nportid);
2841 lpfc_enqueue_node(vport, ndlp);
2842 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2843 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2848 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2849 ndlp->nlp_DID, ELS_CMD_RNID);
2851 /* This will trigger the release of the node just
2858 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2860 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
2861 pcmd += sizeof(uint32_t);
2863 /* Fill in FARPR payload */
2864 fp = (FARP *) (pcmd);
2865 memset(fp, 0, sizeof(FARP));
2866 lp = (uint32_t *) pcmd;
2867 *lp++ = be32_to_cpu(nportid);
2868 *lp++ = be32_to_cpu(vport->fc_myDID);
2870 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
2872 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
2873 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2874 ondlp = lpfc_findnode_did(vport, nportid);
2875 if (ondlp && NLP_CHK_NODE_ACT(ondlp)) {
2876 memcpy(&fp->OportName, &ondlp->nlp_portname,
2877 sizeof(struct lpfc_name));
2878 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
2879 sizeof(struct lpfc_name));
2882 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2883 "Issue FARPR: did:x%x",
2884 ndlp->nlp_DID, 0, 0);
2886 phba->fc_stat.elsXmitFARPR++;
2887 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2888 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2890 /* The additional lpfc_nlp_put will cause the following
2891 * lpfc_els_free_iocb routine to trigger the release of
2895 lpfc_els_free_iocb(phba, elsiocb);
2898 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2899 * trigger the release of the node.
2906 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2907 * @vport: pointer to a host virtual N_Port data structure.
2908 * @nlp: pointer to a node-list data structure.
2910 * This routine cancels the timer with a delayed IOCB-command retry for
2911 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2912 * removes the ELS retry event if it presents. In addition, if the
2913 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2914 * commands are sent for the @vport's nodes that require issuing discovery
2918 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
2920 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2921 struct lpfc_work_evt *evtp;
2923 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
2925 spin_lock_irq(shost->host_lock);
2926 nlp->nlp_flag &= ~NLP_DELAY_TMO;
2927 spin_unlock_irq(shost->host_lock);
2928 del_timer_sync(&nlp->nlp_delayfunc);
2929 nlp->nlp_last_elscmd = 0;
2930 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
2931 list_del_init(&nlp->els_retry_evt.evt_listp);
2932 /* Decrement nlp reference count held for the delayed retry */
2933 evtp = &nlp->els_retry_evt;
2934 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
2936 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
2937 spin_lock_irq(shost->host_lock);
2938 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2939 spin_unlock_irq(shost->host_lock);
2940 if (vport->num_disc_nodes) {
2941 if (vport->port_state < LPFC_VPORT_READY) {
2942 /* Check if there are more ADISCs to be sent */
2943 lpfc_more_adisc(vport);
2945 /* Check if there are more PLOGIs to be sent */
2946 lpfc_more_plogi(vport);
2947 if (vport->num_disc_nodes == 0) {
2948 spin_lock_irq(shost->host_lock);
2949 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2950 spin_unlock_irq(shost->host_lock);
2951 lpfc_can_disctmo(vport);
2952 lpfc_end_rscn(vport);
2961 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2962 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2964 * This routine is invoked by the ndlp delayed-function timer to check
2965 * whether there is any pending ELS retry event(s) with the node. If not, it
2966 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2967 * adds the delayed events to the HBA work list and invokes the
2968 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2969 * event. Note that lpfc_nlp_get() is called before posting the event to
2970 * the work list to hold reference count of ndlp so that it guarantees the
2971 * reference to ndlp will still be available when the worker thread gets
2972 * to the event associated with the ndlp.
2975 lpfc_els_retry_delay(unsigned long ptr)
2977 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
2978 struct lpfc_vport *vport = ndlp->vport;
2979 struct lpfc_hba *phba = vport->phba;
2980 unsigned long flags;
2981 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
2983 spin_lock_irqsave(&phba->hbalock, flags);
2984 if (!list_empty(&evtp->evt_listp)) {
2985 spin_unlock_irqrestore(&phba->hbalock, flags);
2989 /* We need to hold the node by incrementing the reference
2990 * count until the queued work is done
2992 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
2993 if (evtp->evt_arg1) {
2994 evtp->evt = LPFC_EVT_ELS_RETRY;
2995 list_add_tail(&evtp->evt_listp, &phba->work_list);
2996 lpfc_worker_wake_up(phba);
2998 spin_unlock_irqrestore(&phba->hbalock, flags);
3003 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
3004 * @ndlp: pointer to a node-list data structure.
3006 * This routine is the worker-thread handler for processing the @ndlp delayed
3007 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3008 * the last ELS command from the associated ndlp and invokes the proper ELS
3009 * function according to the delayed ELS command to retry the command.
3012 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
3014 struct lpfc_vport *vport = ndlp->vport;
3015 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3016 uint32_t cmd, retry;
3018 spin_lock_irq(shost->host_lock);
3019 cmd = ndlp->nlp_last_elscmd;
3020 ndlp->nlp_last_elscmd = 0;
3022 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
3023 spin_unlock_irq(shost->host_lock);
3027 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3028 spin_unlock_irq(shost->host_lock);
3030 * If a discovery event readded nlp_delayfunc after timer
3031 * firing and before processing the timer, cancel the
3034 del_timer_sync(&ndlp->nlp_delayfunc);
3035 retry = ndlp->nlp_retry;
3036 ndlp->nlp_retry = 0;
3040 lpfc_issue_els_flogi(vport, ndlp, retry);
3043 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
3044 ndlp->nlp_prev_state = ndlp->nlp_state;
3045 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
3049 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
3050 ndlp->nlp_prev_state = ndlp->nlp_state;
3051 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3055 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
3056 ndlp->nlp_prev_state = ndlp->nlp_state;
3057 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3061 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
3062 ndlp->nlp_prev_state = ndlp->nlp_state;
3063 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3067 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
3068 lpfc_issue_els_fdisc(vport, ndlp, retry);
3075 * lpfc_els_retry - Make retry decision on an els command iocb
3076 * @phba: pointer to lpfc hba data structure.
3077 * @cmdiocb: pointer to lpfc command iocb data structure.
3078 * @rspiocb: pointer to lpfc response iocb data structure.
3080 * This routine makes a retry decision on an ELS command IOCB, which has
3081 * failed. The following ELS IOCBs use this function for retrying the command
3082 * when previously issued command responsed with error status: FLOGI, PLOGI,
3083 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3084 * returned error status, it makes the decision whether a retry shall be
3085 * issued for the command, and whether a retry shall be made immediately or
3086 * delayed. In the former case, the corresponding ELS command issuing-function
3087 * is called to retry the command. In the later case, the ELS command shall
3088 * be posted to the ndlp delayed event and delayed function timer set to the
3089 * ndlp for the delayed command issusing.
3092 * 0 - No retry of els command is made
3093 * 1 - Immediate or delayed retry of els command is made
3096 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3097 struct lpfc_iocbq *rspiocb)
3099 struct lpfc_vport *vport = cmdiocb->vport;
3100 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3101 IOCB_t *irsp = &rspiocb->iocb;
3102 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3103 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3106 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
3112 /* Note: context2 may be 0 for internal driver abort
3113 * of delays ELS command.
3116 if (pcmd && pcmd->virt) {
3117 elscmd = (uint32_t *) (pcmd->virt);
3121 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
3122 did = ndlp->nlp_DID;
3124 /* We should only hit this case for retrying PLOGI */
3125 did = irsp->un.elsreq64.remoteID;
3126 ndlp = lpfc_findnode_did(vport, did);
3127 if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp))
3128 && (cmd != ELS_CMD_PLOGI))
3132 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3133 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3134 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
3136 switch (irsp->ulpStatus) {
3137 case IOSTAT_FCP_RSP_ERROR:
3139 case IOSTAT_REMOTE_STOP:
3140 if (phba->sli_rev == LPFC_SLI_REV4) {
3141 /* This IO was aborted by the target, we don't
3142 * know the rxid and because we did not send the
3143 * ABTS we cannot generate and RRQ.
3145 lpfc_set_rrq_active(phba, ndlp,
3146 cmdiocb->sli4_lxritag, 0, 0);
3149 case IOSTAT_LOCAL_REJECT:
3150 switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
3151 case IOERR_LOOP_OPEN_FAILURE:
3152 if (cmd == ELS_CMD_FLOGI) {
3153 if (PCI_DEVICE_ID_HORNET ==
3154 phba->pcidev->device) {
3155 phba->fc_topology = LPFC_TOPOLOGY_LOOP;
3156 phba->pport->fc_myDID = 0;
3157 phba->alpa_map[0] = 0;
3158 phba->alpa_map[1] = 0;
3161 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
3166 case IOERR_ILLEGAL_COMMAND:
3167 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3168 "0124 Retry illegal cmd x%x "
3169 "retry:x%x delay:x%x\n",
3170 cmd, cmdiocb->retry, delay);
3172 /* All command's retry policy */
3174 if (cmdiocb->retry > 2)
3178 case IOERR_NO_RESOURCES:
3179 logerr = 1; /* HBA out of resources */
3181 if (cmdiocb->retry > 100)
3186 case IOERR_ILLEGAL_FRAME:
3191 case IOERR_SEQUENCE_TIMEOUT:
3192 case IOERR_INVALID_RPI:
3193 if (cmd == ELS_CMD_PLOGI &&
3194 did == NameServer_DID) {
3195 /* Continue forever if plogi to */
3196 /* the nameserver fails */
3205 case IOSTAT_NPORT_RJT:
3206 case IOSTAT_FABRIC_RJT:
3207 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
3213 case IOSTAT_NPORT_BSY:
3214 case IOSTAT_FABRIC_BSY:
3215 logerr = 1; /* Fabric / Remote NPort out of resources */
3220 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
3221 /* Added for Vendor specifc support
3222 * Just keep retrying for these Rsn / Exp codes
3224 switch (stat.un.b.lsRjtRsnCode) {
3225 case LSRJT_UNABLE_TPC:
3226 if (stat.un.b.lsRjtRsnCodeExp ==
3227 LSEXP_CMD_IN_PROGRESS) {
3228 if (cmd == ELS_CMD_PLOGI) {
3235 if (stat.un.b.lsRjtRsnCodeExp ==
3236 LSEXP_CANT_GIVE_DATA) {
3237 if (cmd == ELS_CMD_PLOGI) {
3244 if ((cmd == ELS_CMD_PLOGI) ||
3245 (cmd == ELS_CMD_PRLI)) {
3247 maxretry = lpfc_max_els_tries + 1;
3251 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3252 (cmd == ELS_CMD_FDISC) &&
3253 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
3254 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3255 "0125 FDISC Failed (x%x). "
3256 "Fabric out of resources\n",
3257 stat.un.lsRjtError);
3258 lpfc_vport_set_state(vport,
3259 FC_VPORT_NO_FABRIC_RSCS);
3263 case LSRJT_LOGICAL_BSY:
3264 if ((cmd == ELS_CMD_PLOGI) ||
3265 (cmd == ELS_CMD_PRLI)) {
3268 } else if (cmd == ELS_CMD_FDISC) {
3269 /* FDISC retry policy */
3271 if (cmdiocb->retry >= 32)
3277 case LSRJT_LOGICAL_ERR:
3278 /* There are some cases where switches return this
3279 * error when they are not ready and should be returning
3280 * Logical Busy. We should delay every time.
3282 if (cmd == ELS_CMD_FDISC &&
3283 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
3289 case LSRJT_PROTOCOL_ERR:
3290 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3291 (cmd == ELS_CMD_FDISC) &&
3292 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
3293 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
3295 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3296 "0122 FDISC Failed (x%x). "
3297 "Fabric Detected Bad WWN\n",
3298 stat.un.lsRjtError);
3299 lpfc_vport_set_state(vport,
3300 FC_VPORT_FABRIC_REJ_WWN);
3303 case LSRJT_VENDOR_UNIQUE:
3304 if ((stat.un.b.vendorUnique == 0x45) &&
3305 (cmd == ELS_CMD_FLOGI)) {
3312 case IOSTAT_INTERMED_RSP:
3320 if (did == FDMI_DID)
3323 if ((cmd == ELS_CMD_FLOGI) &&
3324 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
3325 !lpfc_error_lost_link(irsp)) {
3326 /* FLOGI retry policy */
3328 /* retry FLOGI forever */
3329 if (phba->link_flag != LS_LOOPBACK_MODE)
3334 if (cmdiocb->retry >= 100)
3336 else if (cmdiocb->retry >= 32)
3338 } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
3339 /* retry FDISCs every second up to devloss */
3341 maxretry = vport->cfg_devloss_tmo;
3346 if (maxretry && (cmdiocb->retry >= maxretry)) {
3347 phba->fc_stat.elsRetryExceeded++;
3351 if ((vport->load_flag & FC_UNLOADING) != 0)
3356 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
3357 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3358 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3359 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3360 "2849 Stop retry ELS command "
3361 "x%x to remote NPORT x%x, "
3362 "Data: x%x x%x\n", cmd, did,
3363 cmdiocb->retry, delay);
3368 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3369 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3370 "0107 Retry ELS command x%x to remote "
3371 "NPORT x%x Data: x%x x%x\n",
3372 cmd, did, cmdiocb->retry, delay);
3374 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
3375 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
3376 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
3377 IOERR_NO_RESOURCES))) {
3378 /* Don't reset timer for no resources */
3380 /* If discovery / RSCN timer is running, reset it */
3381 if (timer_pending(&vport->fc_disctmo) ||
3382 (vport->fc_flag & FC_RSCN_MODE))
3383 lpfc_set_disctmo(vport);
3386 phba->fc_stat.elsXmitRetry++;
3387 if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
3388 phba->fc_stat.elsDelayRetry++;
3389 ndlp->nlp_retry = cmdiocb->retry;
3391 /* delay is specified in milliseconds */
3392 mod_timer(&ndlp->nlp_delayfunc,
3393 jiffies + msecs_to_jiffies(delay));
3394 spin_lock_irq(shost->host_lock);
3395 ndlp->nlp_flag |= NLP_DELAY_TMO;
3396 spin_unlock_irq(shost->host_lock);
3398 ndlp->nlp_prev_state = ndlp->nlp_state;
3399 if (cmd == ELS_CMD_PRLI)
3400 lpfc_nlp_set_state(vport, ndlp,
3401 NLP_STE_PRLI_ISSUE);
3403 lpfc_nlp_set_state(vport, ndlp,
3405 ndlp->nlp_last_elscmd = cmd;
3411 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
3414 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
3417 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3418 ndlp->nlp_prev_state = ndlp->nlp_state;
3419 lpfc_nlp_set_state(vport, ndlp,
3420 NLP_STE_PLOGI_ISSUE);
3422 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
3425 ndlp->nlp_prev_state = ndlp->nlp_state;
3426 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3427 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
3430 ndlp->nlp_prev_state = ndlp->nlp_state;
3431 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3432 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
3435 ndlp->nlp_prev_state = ndlp->nlp_state;
3436 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3437 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
3441 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3443 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3444 "0137 No retry ELS command x%x to remote "
3445 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3446 cmd, did, irsp->ulpStatus,
3447 irsp->un.ulpWord[4]);
3450 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3451 "0108 No retry ELS command x%x to remote "
3452 "NPORT x%x Retried:%d Error:x%x/%x\n",
3453 cmd, did, cmdiocb->retry, irsp->ulpStatus,
3454 irsp->un.ulpWord[4]);
3460 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3461 * @phba: pointer to lpfc hba data structure.
3462 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3464 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3465 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3466 * checks to see whether there is a lpfc DMA buffer associated with the
3467 * response of the command IOCB. If so, it will be released before releasing
3468 * the lpfc DMA buffer associated with the IOCB itself.
3471 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3474 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
3476 struct lpfc_dmabuf *buf_ptr;
3478 /* Free the response before processing the command. */
3479 if (!list_empty(&buf_ptr1->list)) {
3480 list_remove_head(&buf_ptr1->list, buf_ptr,
3483 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3486 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
3492 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3493 * @phba: pointer to lpfc hba data structure.
3494 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3496 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3497 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3501 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3504 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
3506 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3512 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3513 * @phba: pointer to lpfc hba data structure.
3514 * @elsiocb: pointer to lpfc els command iocb data structure.
3516 * This routine frees a command IOCB and its associated resources. The
3517 * command IOCB data structure contains the reference to various associated
3518 * resources, these fields must be set to NULL if the associated reference
3520 * context1 - reference to ndlp
3521 * context2 - reference to cmd
3522 * context2->next - reference to rsp
3523 * context3 - reference to bpl
3525 * It first properly decrements the reference count held on ndlp for the
3526 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3527 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3528 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3529 * adds the DMA buffer the @phba data structure for the delayed release.
3530 * If reference to the Buffer Pointer List (BPL) is present, the
3531 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3532 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3533 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3536 * 0 - Success (currently, always return 0)
3539 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
3541 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
3542 struct lpfc_nodelist *ndlp;
3544 ndlp = (struct lpfc_nodelist *)elsiocb->context1;
3546 if (ndlp->nlp_flag & NLP_DEFER_RM) {
3549 /* If the ndlp is not being used by another discovery
3552 if (!lpfc_nlp_not_used(ndlp)) {
3553 /* If ndlp is being used by another discovery
3554 * thread, just clear NLP_DEFER_RM
3556 ndlp->nlp_flag &= ~NLP_DEFER_RM;
3561 elsiocb->context1 = NULL;
3563 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3564 if (elsiocb->context2) {
3565 if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
3566 /* Firmware could still be in progress of DMAing
3567 * payload, so don't free data buffer till after
3570 elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
3571 buf_ptr = elsiocb->context2;
3572 elsiocb->context2 = NULL;
3575 spin_lock_irq(&phba->hbalock);
3576 if (!list_empty(&buf_ptr->list)) {
3577 list_remove_head(&buf_ptr->list,
3578 buf_ptr1, struct lpfc_dmabuf,
3580 INIT_LIST_HEAD(&buf_ptr1->list);
3581 list_add_tail(&buf_ptr1->list,
3585 INIT_LIST_HEAD(&buf_ptr->list);
3586 list_add_tail(&buf_ptr->list, &phba->elsbuf);
3588 spin_unlock_irq(&phba->hbalock);
3591 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
3592 lpfc_els_free_data(phba, buf_ptr1);
3593 elsiocb->context2 = NULL;
3597 if (elsiocb->context3) {
3598 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
3599 lpfc_els_free_bpl(phba, buf_ptr);
3600 elsiocb->context3 = NULL;
3602 lpfc_sli_release_iocbq(phba, elsiocb);
3607 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3608 * @phba: pointer to lpfc hba data structure.
3609 * @cmdiocb: pointer to lpfc command iocb data structure.
3610 * @rspiocb: pointer to lpfc response iocb data structure.
3612 * This routine is the completion callback function to the Logout (LOGO)
3613 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3614 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3615 * release the ndlp if it has the last reference remaining (reference count
3616 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3617 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3618 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3619 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3620 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3621 * IOCB data structure.
3624 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3625 struct lpfc_iocbq *rspiocb)
3627 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3628 struct lpfc_vport *vport = cmdiocb->vport;
3631 irsp = &rspiocb->iocb;
3632 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3633 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3634 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
3635 /* ACC to LOGO completes to NPort <nlp_DID> */
3636 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3637 "0109 ACC to LOGO completes to NPort x%x "
3638 "Data: x%x x%x x%x\n",
3639 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3642 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
3643 /* NPort Recovery mode or node is just allocated */
3644 if (!lpfc_nlp_not_used(ndlp)) {
3645 /* If the ndlp is being used by another discovery
3646 * thread, just unregister the RPI.
3648 lpfc_unreg_rpi(vport, ndlp);
3650 /* Indicate the node has already released, should
3651 * not reference to it from within lpfc_els_free_iocb.
3653 cmdiocb->context1 = NULL;
3658 * The driver received a LOGO from the rport and has ACK'd it.
3659 * At this point, the driver is done so release the IOCB
3661 lpfc_els_free_iocb(phba, cmdiocb);
3665 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3666 * @phba: pointer to lpfc hba data structure.
3667 * @pmb: pointer to the driver internal queue element for mailbox command.
3669 * This routine is the completion callback function for unregister default
3670 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3671 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3672 * decrements the ndlp reference count held for this completion callback
3673 * function. After that, it invokes the lpfc_nlp_not_used() to check
3674 * whether there is only one reference left on the ndlp. If so, it will
3675 * perform one more decrement and trigger the release of the ndlp.
3678 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3680 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3681 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3683 pmb->context1 = NULL;
3684 pmb->context2 = NULL;
3686 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3688 mempool_free(pmb, phba->mbox_mem_pool);
3690 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3691 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3692 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3693 kref_read(&ndlp->kref),
3694 ndlp->nlp_usg_map, ndlp);
3695 if (NLP_CHK_NODE_ACT(ndlp)) {
3697 /* This is the end of the default RPI cleanup logic for
3698 * this ndlp. If no other discovery threads are using
3699 * this ndlp, free all resources associated with it.
3701 lpfc_nlp_not_used(ndlp);
3703 lpfc_drop_node(ndlp->vport, ndlp);
3711 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3712 * @phba: pointer to lpfc hba data structure.
3713 * @cmdiocb: pointer to lpfc command iocb data structure.
3714 * @rspiocb: pointer to lpfc response iocb data structure.
3716 * This routine is the completion callback function for ELS Response IOCB
3717 * command. In normal case, this callback function just properly sets the
3718 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3719 * field in the command IOCB is not NULL, the referred mailbox command will
3720 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3721 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3722 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3723 * routine shall be invoked trying to release the ndlp if no other threads
3724 * are currently referring it.
3727 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3728 struct lpfc_iocbq *rspiocb)
3730 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3731 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
3732 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
3735 LPFC_MBOXQ_t *mbox = NULL;
3736 struct lpfc_dmabuf *mp = NULL;
3737 uint32_t ls_rjt = 0;
3739 irsp = &rspiocb->iocb;
3741 if (cmdiocb->context_un.mbox)
3742 mbox = cmdiocb->context_un.mbox;
3744 /* First determine if this is a LS_RJT cmpl. Note, this callback
3745 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3747 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
3748 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3749 (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
3750 /* A LS_RJT associated with Default RPI cleanup has its own
3751 * separate code path.
3753 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3757 /* Check to see if link went down during discovery */
3758 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
3760 mp = (struct lpfc_dmabuf *) mbox->context1;
3762 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3765 mempool_free(mbox, phba->mbox_mem_pool);
3767 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3768 (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3769 if (lpfc_nlp_not_used(ndlp)) {
3771 /* Indicate the node has already released,
3772 * should not reference to it from within
3773 * the routine lpfc_els_free_iocb.
3775 cmdiocb->context1 = NULL;
3780 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3781 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3782 irsp->ulpStatus, irsp->un.ulpWord[4],
3783 cmdiocb->iocb.un.elsreq64.remoteID);
3784 /* ELS response tag <ulpIoTag> completes */
3785 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3786 "0110 ELS response tag x%x completes "
3787 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3788 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
3789 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
3790 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3793 if ((rspiocb->iocb.ulpStatus == 0)
3794 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
3795 lpfc_unreg_rpi(vport, ndlp);
3796 /* Increment reference count to ndlp to hold the
3797 * reference to ndlp for the callback function.
3799 mbox->context2 = lpfc_nlp_get(ndlp);
3800 mbox->vport = vport;
3801 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
3802 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3803 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3806 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
3807 ndlp->nlp_prev_state = ndlp->nlp_state;
3808 lpfc_nlp_set_state(vport, ndlp,
3809 NLP_STE_REG_LOGIN_ISSUE);
3812 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
3813 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
3814 != MBX_NOT_FINISHED)
3817 /* Decrement the ndlp reference count we
3818 * set for this failed mailbox command.
3821 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3823 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3824 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3825 "0138 ELS rsp: Cannot issue reg_login for x%x "
3826 "Data: x%x x%x x%x\n",
3827 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3830 if (lpfc_nlp_not_used(ndlp)) {
3832 /* Indicate node has already been released,
3833 * should not reference to it from within
3834 * the routine lpfc_els_free_iocb.
3836 cmdiocb->context1 = NULL;
3839 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3840 if (!lpfc_error_lost_link(irsp) &&
3841 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
3842 if (lpfc_nlp_not_used(ndlp)) {
3844 /* Indicate node has already been
3845 * released, should not reference
3846 * to it from within the routine
3847 * lpfc_els_free_iocb.
3849 cmdiocb->context1 = NULL;
3853 mp = (struct lpfc_dmabuf *) mbox->context1;
3855 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3858 mempool_free(mbox, phba->mbox_mem_pool);
3861 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3862 spin_lock_irq(shost->host_lock);
3863 ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
3864 spin_unlock_irq(shost->host_lock);
3866 /* If the node is not being used by another discovery thread,
3867 * and we are sending a reject, we are done with it.
3868 * Release driver reference count here and free associated
3872 if (lpfc_nlp_not_used(ndlp))
3873 /* Indicate node has already been released,
3874 * should not reference to it from within
3875 * the routine lpfc_els_free_iocb.
3877 cmdiocb->context1 = NULL;
3881 lpfc_els_free_iocb(phba, cmdiocb);
3886 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3887 * @vport: pointer to a host virtual N_Port data structure.
3888 * @flag: the els command code to be accepted.
3889 * @oldiocb: pointer to the original lpfc command iocb data structure.
3890 * @ndlp: pointer to a node-list data structure.
3891 * @mbox: pointer to the driver internal queue element for mailbox command.
3893 * This routine prepares and issues an Accept (ACC) response IOCB
3894 * command. It uses the @flag to properly set up the IOCB field for the
3895 * specific ACC response command to be issued and invokes the
3896 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3897 * @mbox pointer is passed in, it will be put into the context_un.mbox
3898 * field of the IOCB for the completion callback function to issue the
3899 * mailbox command to the HBA later when callback is invoked.
3901 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3902 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3903 * will be stored into the context1 field of the IOCB for the completion
3904 * callback function to the corresponding response ELS IOCB command.
3907 * 0 - Successfully issued acc response
3908 * 1 - Failed to issue acc response
3911 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
3912 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
3915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3916 struct lpfc_hba *phba = vport->phba;
3919 struct lpfc_iocbq *elsiocb;
3921 struct serv_parm *sp;
3924 ELS_PKT *els_pkt_ptr;
3926 oldcmd = &oldiocb->iocb;
3930 cmdsize = sizeof(uint32_t);
3931 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3932 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3934 spin_lock_irq(shost->host_lock);
3935 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
3936 spin_unlock_irq(shost->host_lock);
3940 icmd = &elsiocb->iocb;
3941 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3942 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3943 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3944 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3945 pcmd += sizeof(uint32_t);
3947 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3948 "Issue ACC: did:x%x flg:x%x",
3949 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3953 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
3954 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3955 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3959 icmd = &elsiocb->iocb;
3960 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3961 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3962 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3965 elsiocb->context_un.mbox = mbox;
3967 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3968 pcmd += sizeof(uint32_t);
3969 sp = (struct serv_parm *)pcmd;
3971 if (flag == ELS_CMD_FLOGI) {
3972 /* Copy the received service parameters back */
3973 memcpy(sp, &phba->fc_fabparam,
3974 sizeof(struct serv_parm));
3976 /* Clear the F_Port bit */
3979 /* Mark all class service parameters as invalid */
3980 sp->cls1.classValid = 0;
3981 sp->cls2.classValid = 0;
3982 sp->cls3.classValid = 0;
3983 sp->cls4.classValid = 0;
3985 /* Copy our worldwide names */
3986 memcpy(&sp->portName, &vport->fc_sparam.portName,
3987 sizeof(struct lpfc_name));
3988 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
3989 sizeof(struct lpfc_name));
3991 memcpy(pcmd, &vport->fc_sparam,
3992 sizeof(struct serv_parm));
3995 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3996 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
3997 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4000 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
4001 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4002 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
4006 icmd = &elsiocb->iocb;
4007 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4008 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4009 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4011 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
4012 sizeof(uint32_t) + sizeof(PRLO));
4013 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
4014 els_pkt_ptr = (ELS_PKT *) pcmd;
4015 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
4017 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4018 "Issue ACC PRLO: did:x%x flg:x%x",
4019 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4024 /* Xmit ELS ACC response tag <ulpIoTag> */
4025 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4026 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4027 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4029 elsiocb->iotag, elsiocb->iocb.ulpContext,
4030 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4031 ndlp->nlp_rpi, vport->fc_flag);
4032 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
4033 spin_lock_irq(shost->host_lock);
4034 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4035 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
4036 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4037 spin_unlock_irq(shost->host_lock);
4038 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
4040 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4043 phba->fc_stat.elsXmitACC++;
4044 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4045 if (rc == IOCB_ERROR) {
4046 lpfc_els_free_iocb(phba, elsiocb);
4053 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4054 * @vport: pointer to a virtual N_Port data structure.
4056 * @oldiocb: pointer to the original lpfc command iocb data structure.
4057 * @ndlp: pointer to a node-list data structure.
4058 * @mbox: pointer to the driver internal queue element for mailbox command.
4060 * This routine prepares and issue an Reject (RJT) response IOCB
4061 * command. If a @mbox pointer is passed in, it will be put into the
4062 * context_un.mbox field of the IOCB for the completion callback function
4063 * to issue to the HBA later.
4065 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4066 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4067 * will be stored into the context1 field of the IOCB for the completion
4068 * callback function to the reject response ELS IOCB command.
4071 * 0 - Successfully issued reject response
4072 * 1 - Failed to issue reject response
4075 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
4076 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4079 struct lpfc_hba *phba = vport->phba;
4082 struct lpfc_iocbq *elsiocb;
4087 cmdsize = 2 * sizeof(uint32_t);
4088 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4089 ndlp->nlp_DID, ELS_CMD_LS_RJT);
4093 icmd = &elsiocb->iocb;
4094 oldcmd = &oldiocb->iocb;
4095 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4096 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4097 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4099 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4100 pcmd += sizeof(uint32_t);
4101 *((uint32_t *) (pcmd)) = rejectError;
4104 elsiocb->context_un.mbox = mbox;
4106 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4107 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4108 "0129 Xmit ELS RJT x%x response tag x%x "
4109 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4111 rejectError, elsiocb->iotag,
4112 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4113 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
4114 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4115 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4116 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4118 phba->fc_stat.elsXmitLSRJT++;
4119 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4120 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4122 if (rc == IOCB_ERROR) {
4123 lpfc_els_free_iocb(phba, elsiocb);
4130 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4131 * @vport: pointer to a virtual N_Port data structure.
4132 * @oldiocb: pointer to the original lpfc command iocb data structure.
4133 * @ndlp: pointer to a node-list data structure.
4135 * This routine prepares and issues an Accept (ACC) response to Address
4136 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4137 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4139 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4140 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4141 * will be stored into the context1 field of the IOCB for the completion
4142 * callback function to the ADISC Accept response ELS IOCB command.
4145 * 0 - Successfully issued acc adisc response
4146 * 1 - Failed to issue adisc acc response
4149 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4150 struct lpfc_nodelist *ndlp)
4152 struct lpfc_hba *phba = vport->phba;
4154 IOCB_t *icmd, *oldcmd;
4155 struct lpfc_iocbq *elsiocb;
4160 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
4161 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4162 ndlp->nlp_DID, ELS_CMD_ACC);
4166 icmd = &elsiocb->iocb;
4167 oldcmd = &oldiocb->iocb;
4168 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4169 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4171 /* Xmit ADISC ACC response tag <ulpIoTag> */
4172 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4173 "0130 Xmit ADISC ACC response iotag x%x xri: "
4174 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4175 elsiocb->iotag, elsiocb->iocb.ulpContext,
4176 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4178 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4180 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4181 pcmd += sizeof(uint32_t);
4183 ap = (ADISC *) (pcmd);
4184 ap->hardAL_PA = phba->fc_pref_ALPA;
4185 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4186 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4187 ap->DID = be32_to_cpu(vport->fc_myDID);
4189 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4190 "Issue ACC ADISC: did:x%x flg:x%x",
4191 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4193 phba->fc_stat.elsXmitACC++;
4194 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4195 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4196 if (rc == IOCB_ERROR) {
4197 lpfc_els_free_iocb(phba, elsiocb);
4204 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4205 * @vport: pointer to a virtual N_Port data structure.
4206 * @oldiocb: pointer to the original lpfc command iocb data structure.
4207 * @ndlp: pointer to a node-list data structure.
4209 * This routine prepares and issues an Accept (ACC) response to Process
4210 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4211 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4213 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4214 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4215 * will be stored into the context1 field of the IOCB for the completion
4216 * callback function to the PRLI Accept response ELS IOCB command.
4219 * 0 - Successfully issued acc prli response
4220 * 1 - Failed to issue acc prli response
4223 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4224 struct lpfc_nodelist *ndlp)
4226 struct lpfc_hba *phba = vport->phba;
4231 struct lpfc_iocbq *elsiocb;
4236 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
4237 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4238 ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
4242 icmd = &elsiocb->iocb;
4243 oldcmd = &oldiocb->iocb;
4244 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4245 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4247 /* Xmit PRLI ACC response tag <ulpIoTag> */
4248 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4249 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4250 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4251 elsiocb->iotag, elsiocb->iocb.ulpContext,
4252 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4254 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4256 *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
4257 pcmd += sizeof(uint32_t);
4259 /* For PRLI, remainder of payload is PRLI parameter page */
4260 memset(pcmd, 0, sizeof(PRLI));
4262 npr = (PRLI *) pcmd;
4265 * If the remote port is a target and our firmware version is 3.20 or
4266 * later, set the following bits for FC-TAPE support.
4268 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4269 (vpd->rev.feaLevelHigh >= 0x02)) {
4270 npr->ConfmComplAllowed = 1;
4272 npr->TaskRetryIdReq = 1;
4275 npr->acceptRspCode = PRLI_REQ_EXECUTED;
4276 npr->estabImagePair = 1;
4277 npr->readXferRdyDis = 1;
4278 npr->ConfmComplAllowed = 1;
4280 npr->prliType = PRLI_FCP_TYPE;
4281 npr->initiatorFunc = 1;
4283 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4284 "Issue ACC PRLI: did:x%x flg:x%x",
4285 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4287 phba->fc_stat.elsXmitACC++;
4288 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4290 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4291 if (rc == IOCB_ERROR) {
4292 lpfc_els_free_iocb(phba, elsiocb);
4299 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4300 * @vport: pointer to a virtual N_Port data structure.
4301 * @format: rnid command format.
4302 * @oldiocb: pointer to the original lpfc command iocb data structure.
4303 * @ndlp: pointer to a node-list data structure.
4305 * This routine issues a Request Node Identification Data (RNID) Accept
4306 * (ACC) response. It constructs the RNID ACC response command according to
4307 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4308 * issue the response. Note that this command does not need to hold the ndlp
4309 * reference count for the callback. So, the ndlp reference count taken by
4310 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4311 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4312 * there is no ndlp reference available.
4314 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4315 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4316 * will be stored into the context1 field of the IOCB for the completion
4317 * callback function. However, for the RNID Accept Response ELS command,
4318 * this is undone later by this routine after the IOCB is allocated.
4321 * 0 - Successfully issued acc rnid response
4322 * 1 - Failed to issue acc rnid response
4325 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
4326 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4328 struct lpfc_hba *phba = vport->phba;
4330 IOCB_t *icmd, *oldcmd;
4331 struct lpfc_iocbq *elsiocb;
4336 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
4337 + (2 * sizeof(struct lpfc_name));
4339 cmdsize += sizeof(RNID_TOP_DISC);
4341 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4342 ndlp->nlp_DID, ELS_CMD_ACC);
4346 icmd = &elsiocb->iocb;
4347 oldcmd = &oldiocb->iocb;
4348 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4349 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4351 /* Xmit RNID ACC response tag <ulpIoTag> */
4352 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4353 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4354 elsiocb->iotag, elsiocb->iocb.ulpContext);
4355 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4356 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4357 pcmd += sizeof(uint32_t);
4359 memset(pcmd, 0, sizeof(RNID));
4360 rn = (RNID *) (pcmd);
4361 rn->Format = format;
4362 rn->CommonLen = (2 * sizeof(struct lpfc_name));
4363 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4364 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4367 rn->SpecificLen = 0;
4369 case RNID_TOPOLOGY_DISC:
4370 rn->SpecificLen = sizeof(RNID_TOP_DISC);
4371 memcpy(&rn->un.topologyDisc.portName,
4372 &vport->fc_portname, sizeof(struct lpfc_name));
4373 rn->un.topologyDisc.unitType = RNID_HBA;
4374 rn->un.topologyDisc.physPort = 0;
4375 rn->un.topologyDisc.attachedNodes = 0;
4379 rn->SpecificLen = 0;
4383 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4384 "Issue ACC RNID: did:x%x flg:x%x",
4385 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4387 phba->fc_stat.elsXmitACC++;
4388 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4390 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4391 if (rc == IOCB_ERROR) {
4392 lpfc_els_free_iocb(phba, elsiocb);
4399 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4400 * @vport: pointer to a virtual N_Port data structure.
4401 * @iocb: pointer to the lpfc command iocb data structure.
4402 * @ndlp: pointer to a node-list data structure.
4407 lpfc_els_clear_rrq(struct lpfc_vport *vport,
4408 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
4410 struct lpfc_hba *phba = vport->phba;
4415 struct lpfc_node_rrq *prrq;
4418 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
4419 pcmd += sizeof(uint32_t);
4420 rrq = (struct RRQ *)pcmd;
4421 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
4422 rxid = bf_get(rrq_rxid, rrq);
4424 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4425 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4427 be32_to_cpu(bf_get(rrq_did, rrq)),
4428 bf_get(rrq_oxid, rrq),
4430 iocb->iotag, iocb->iocb.ulpContext);
4432 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4433 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4434 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
4435 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
4436 xri = bf_get(rrq_oxid, rrq);
4439 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
4441 lpfc_clr_rrq_active(phba, xri, prrq);
4446 * lpfc_els_rsp_echo_acc - Issue echo acc response
4447 * @vport: pointer to a virtual N_Port data structure.
4448 * @data: pointer to echo data to return in the accept.
4449 * @oldiocb: pointer to the original lpfc command iocb data structure.
4450 * @ndlp: pointer to a node-list data structure.
4453 * 0 - Successfully issued acc echo response
4454 * 1 - Failed to issue acc echo response
4457 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
4458 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4460 struct lpfc_hba *phba = vport->phba;
4461 struct lpfc_iocbq *elsiocb;
4466 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
4468 /* The accumulated length can exceed the BPL_SIZE. For
4469 * now, use this as the limit
4471 if (cmdsize > LPFC_BPL_SIZE)
4472 cmdsize = LPFC_BPL_SIZE;
4473 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4474 ndlp->nlp_DID, ELS_CMD_ACC);
4478 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
4479 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
4481 /* Xmit ECHO ACC response tag <ulpIoTag> */
4482 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4483 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4484 elsiocb->iotag, elsiocb->iocb.ulpContext);
4485 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4486 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4487 pcmd += sizeof(uint32_t);
4488 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
4490 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4491 "Issue ACC ECHO: did:x%x flg:x%x",
4492 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4494 phba->fc_stat.elsXmitACC++;
4495 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4497 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4498 if (rc == IOCB_ERROR) {
4499 lpfc_els_free_iocb(phba, elsiocb);
4506 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4507 * @vport: pointer to a host virtual N_Port data structure.
4509 * This routine issues Address Discover (ADISC) ELS commands to those
4510 * N_Ports which are in node port recovery state and ADISC has not been issued
4511 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4512 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4513 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4514 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4515 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4516 * IOCBs quit for later pick up. On the other hand, after walking through
4517 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4518 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4519 * no more ADISC need to be sent.
4522 * The number of N_Ports with adisc issued.
4525 lpfc_els_disc_adisc(struct lpfc_vport *vport)
4527 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4528 struct lpfc_nodelist *ndlp, *next_ndlp;
4531 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4532 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4533 if (!NLP_CHK_NODE_ACT(ndlp))
4535 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4536 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4537 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
4538 spin_lock_irq(shost->host_lock);
4539 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4540 spin_unlock_irq(shost->host_lock);
4541 ndlp->nlp_prev_state = ndlp->nlp_state;
4542 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4543 lpfc_issue_els_adisc(vport, ndlp, 0);
4545 vport->num_disc_nodes++;
4546 if (vport->num_disc_nodes >=
4547 vport->cfg_discovery_threads) {
4548 spin_lock_irq(shost->host_lock);
4549 vport->fc_flag |= FC_NLP_MORE;
4550 spin_unlock_irq(shost->host_lock);
4555 if (sentadisc == 0) {
4556 spin_lock_irq(shost->host_lock);
4557 vport->fc_flag &= ~FC_NLP_MORE;
4558 spin_unlock_irq(shost->host_lock);
4564 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4565 * @vport: pointer to a host virtual N_Port data structure.
4567 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4568 * which are in node port recovery state, with a @vport. Each time an ELS
4569 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4570 * the per @vport number of discover count (num_disc_nodes) shall be
4571 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4572 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4573 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4574 * later pick up. On the other hand, after walking through all the ndlps with
4575 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4576 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4577 * PLOGI need to be sent.
4580 * The number of N_Ports with plogi issued.
4583 lpfc_els_disc_plogi(struct lpfc_vport *vport)
4585 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4586 struct lpfc_nodelist *ndlp, *next_ndlp;
4589 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4590 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4591 if (!NLP_CHK_NODE_ACT(ndlp))
4593 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4594 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4595 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
4596 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
4597 ndlp->nlp_prev_state = ndlp->nlp_state;
4598 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4599 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4601 vport->num_disc_nodes++;
4602 if (vport->num_disc_nodes >=
4603 vport->cfg_discovery_threads) {
4604 spin_lock_irq(shost->host_lock);
4605 vport->fc_flag |= FC_NLP_MORE;
4606 spin_unlock_irq(shost->host_lock);
4612 lpfc_set_disctmo(vport);
4615 spin_lock_irq(shost->host_lock);
4616 vport->fc_flag &= ~FC_NLP_MORE;
4617 spin_unlock_irq(shost->host_lock);
4623 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
4627 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
4628 desc->payload.els_req = word0;
4629 desc->length = cpu_to_be32(sizeof(desc->payload));
4631 return sizeof(struct fc_rdp_link_service_desc);
4635 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
4636 uint8_t *page_a0, uint8_t *page_a2)
4638 uint16_t wavelength;
4639 uint16_t temperature;
4645 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
4646 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
4648 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
4650 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
4651 &page_a0[SSF_TRANSCEIVER_CODE_B4];
4652 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
4653 &page_a0[SSF_TRANSCEIVER_CODE_B5];
4655 if ((trasn_code_byte4->fc_sw_laser) ||
4656 (trasn_code_byte5->fc_sw_laser_sl) ||
4657 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
4658 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
4659 } else if (trasn_code_byte4->fc_lw_laser) {
4660 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
4661 page_a0[SSF_WAVELENGTH_B0];
4662 if (wavelength == SFP_WAVELENGTH_LC1310)
4663 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
4664 if (wavelength == SFP_WAVELENGTH_LL1550)
4665 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
4667 /* check if its SFP+ */
4668 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
4669 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
4670 << SFP_FLAG_CT_SHIFT;
4672 /* check if its OPTICAL */
4673 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
4674 SFP_FLAG_IS_OPTICAL_PORT : 0)
4675 << SFP_FLAG_IS_OPTICAL_SHIFT;
4677 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
4678 page_a2[SFF_TEMPERATURE_B0]);
4679 vcc = (page_a2[SFF_VCC_B1] << 8 |
4680 page_a2[SFF_VCC_B0]);
4681 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
4682 page_a2[SFF_TXPOWER_B0]);
4683 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
4684 page_a2[SFF_TX_BIAS_CURRENT_B0]);
4685 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
4686 page_a2[SFF_RXPOWER_B0]);
4687 desc->sfp_info.temperature = cpu_to_be16(temperature);
4688 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
4689 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
4690 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
4691 desc->sfp_info.vcc = cpu_to_be16(vcc);
4693 desc->sfp_info.flags = cpu_to_be16(flag);
4694 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
4696 return sizeof(struct fc_rdp_sfp_desc);
4700 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
4705 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
4707 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
4709 desc->info.port_type = cpu_to_be32(type);
4711 desc->info.link_status.link_failure_cnt =
4712 cpu_to_be32(stat->linkFailureCnt);
4713 desc->info.link_status.loss_of_synch_cnt =
4714 cpu_to_be32(stat->lossSyncCnt);
4715 desc->info.link_status.loss_of_signal_cnt =
4716 cpu_to_be32(stat->lossSignalCnt);
4717 desc->info.link_status.primitive_seq_proto_err =
4718 cpu_to_be32(stat->primSeqErrCnt);
4719 desc->info.link_status.invalid_trans_word =
4720 cpu_to_be32(stat->invalidXmitWord);
4721 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
4723 desc->length = cpu_to_be32(sizeof(desc->info));
4725 return sizeof(struct fc_rdp_link_error_status_desc);
4729 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
4730 struct lpfc_vport *vport)
4734 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
4736 bbCredit = vport->fc_sparam.cmn.bbCreditLsb |
4737 (vport->fc_sparam.cmn.bbCreditMsb << 8);
4738 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit);
4739 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
4740 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb |
4741 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8);
4742 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit);
4744 desc->bbc_info.attached_port_bbc = 0;
4747 desc->bbc_info.rtt = 0;
4748 desc->length = cpu_to_be32(sizeof(desc->bbc_info));
4750 return sizeof(struct fc_rdp_bbc_desc);
4754 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
4755 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
4759 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4761 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM];
4762 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM];
4763 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING];
4764 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING];
4766 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4767 flags |= RDP_OET_HIGH_ALARM;
4768 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4769 flags |= RDP_OET_LOW_ALARM;
4770 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4771 flags |= RDP_OET_HIGH_WARNING;
4772 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4773 flags |= RDP_OET_LOW_WARNING;
4775 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
4776 desc->oed_info.function_flags = cpu_to_be32(flags);
4777 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4778 return sizeof(struct fc_rdp_oed_sfp_desc);
4782 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
4783 struct fc_rdp_oed_sfp_desc *desc,
4788 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4790 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM];
4791 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM];
4792 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING];
4793 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING];
4795 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
4796 flags |= RDP_OET_HIGH_ALARM;
4797 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE)
4798 flags |= RDP_OET_LOW_ALARM;
4799 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
4800 flags |= RDP_OET_HIGH_WARNING;
4801 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE)
4802 flags |= RDP_OET_LOW_WARNING;
4804 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
4805 desc->oed_info.function_flags = cpu_to_be32(flags);
4806 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4807 return sizeof(struct fc_rdp_oed_sfp_desc);
4811 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
4812 struct fc_rdp_oed_sfp_desc *desc,
4817 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4819 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM];
4820 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM];
4821 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING];
4822 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING];
4824 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS)
4825 flags |= RDP_OET_HIGH_ALARM;
4826 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS)
4827 flags |= RDP_OET_LOW_ALARM;
4828 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS)
4829 flags |= RDP_OET_HIGH_WARNING;
4830 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS)
4831 flags |= RDP_OET_LOW_WARNING;
4833 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
4834 desc->oed_info.function_flags = cpu_to_be32(flags);
4835 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4836 return sizeof(struct fc_rdp_oed_sfp_desc);
4840 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
4841 struct fc_rdp_oed_sfp_desc *desc,
4846 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4848 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM];
4849 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM];
4850 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING];
4851 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING];
4853 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER)
4854 flags |= RDP_OET_HIGH_ALARM;
4855 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER)
4856 flags |= RDP_OET_LOW_ALARM;
4857 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER)
4858 flags |= RDP_OET_HIGH_WARNING;
4859 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER)
4860 flags |= RDP_OET_LOW_WARNING;
4862 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
4863 desc->oed_info.function_flags = cpu_to_be32(flags);
4864 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4865 return sizeof(struct fc_rdp_oed_sfp_desc);
4870 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
4871 struct fc_rdp_oed_sfp_desc *desc,
4876 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4878 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM];
4879 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM];
4880 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING];
4881 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING];
4883 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER)
4884 flags |= RDP_OET_HIGH_ALARM;
4885 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER)
4886 flags |= RDP_OET_LOW_ALARM;
4887 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER)
4888 flags |= RDP_OET_HIGH_WARNING;
4889 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER)
4890 flags |= RDP_OET_LOW_WARNING;
4892 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
4893 desc->oed_info.function_flags = cpu_to_be32(flags);
4894 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4895 return sizeof(struct fc_rdp_oed_sfp_desc);
4899 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
4900 uint8_t *page_a0, struct lpfc_vport *vport)
4902 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
4903 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
4904 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
4905 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
4906 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 2);
4907 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
4908 desc->length = cpu_to_be32(sizeof(desc->opd_info));
4909 return sizeof(struct fc_rdp_opd_sfp_desc);
4913 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
4915 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
4917 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
4919 desc->info.CorrectedBlocks =
4920 cpu_to_be32(stat->fecCorrBlkCount);
4921 desc->info.UncorrectableBlocks =
4922 cpu_to_be32(stat->fecUncorrBlkCount);
4924 desc->length = cpu_to_be32(sizeof(desc->info));
4926 return sizeof(struct fc_fec_rdp_desc);
4930 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
4932 uint16_t rdp_cap = 0;
4935 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
4937 switch (phba->fc_linkspeed) {
4938 case LPFC_LINK_SPEED_1GHZ:
4939 rdp_speed = RDP_PS_1GB;
4941 case LPFC_LINK_SPEED_2GHZ:
4942 rdp_speed = RDP_PS_2GB;
4944 case LPFC_LINK_SPEED_4GHZ:
4945 rdp_speed = RDP_PS_4GB;
4947 case LPFC_LINK_SPEED_8GHZ:
4948 rdp_speed = RDP_PS_8GB;
4950 case LPFC_LINK_SPEED_10GHZ:
4951 rdp_speed = RDP_PS_10GB;
4953 case LPFC_LINK_SPEED_16GHZ:
4954 rdp_speed = RDP_PS_16GB;
4956 case LPFC_LINK_SPEED_32GHZ:
4957 rdp_speed = RDP_PS_32GB;
4960 rdp_speed = RDP_PS_UNKNOWN;
4964 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
4966 if (phba->lmt & LMT_32Gb)
4967 rdp_cap |= RDP_PS_32GB;
4968 if (phba->lmt & LMT_16Gb)
4969 rdp_cap |= RDP_PS_16GB;
4970 if (phba->lmt & LMT_10Gb)
4971 rdp_cap |= RDP_PS_10GB;
4972 if (phba->lmt & LMT_8Gb)
4973 rdp_cap |= RDP_PS_8GB;
4974 if (phba->lmt & LMT_4Gb)
4975 rdp_cap |= RDP_PS_4GB;
4976 if (phba->lmt & LMT_2Gb)
4977 rdp_cap |= RDP_PS_2GB;
4978 if (phba->lmt & LMT_1Gb)
4979 rdp_cap |= RDP_PS_1GB;
4982 rdp_cap = RDP_CAP_UNKNOWN;
4983 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
4984 rdp_cap |= RDP_CAP_USER_CONFIGURED;
4986 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
4987 desc->length = cpu_to_be32(sizeof(desc->info));
4988 return sizeof(struct fc_rdp_port_speed_desc);
4992 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
4993 struct lpfc_hba *phba)
4996 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
4998 memcpy(desc->port_names.wwnn, phba->wwnn,
4999 sizeof(desc->port_names.wwnn));
5001 memcpy(desc->port_names.wwpn, &phba->wwpn,
5002 sizeof(desc->port_names.wwpn));
5004 desc->length = cpu_to_be32(sizeof(desc->port_names));
5005 return sizeof(struct fc_rdp_port_name_desc);
5009 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
5010 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5013 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5014 if (vport->fc_flag & FC_FABRIC) {
5015 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
5016 sizeof(desc->port_names.wwnn));
5018 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
5019 sizeof(desc->port_names.wwpn));
5020 } else { /* Point to Point */
5021 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
5022 sizeof(desc->port_names.wwnn));
5024 memcpy(desc->port_names.wwnn, &ndlp->nlp_portname,
5025 sizeof(desc->port_names.wwpn));
5028 desc->length = cpu_to_be32(sizeof(desc->port_names));
5029 return sizeof(struct fc_rdp_port_name_desc);
5033 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
5036 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
5037 struct lpfc_vport *vport = ndlp->vport;
5038 struct lpfc_iocbq *elsiocb;
5039 struct ulp_bde64 *bpl;
5042 struct ls_rjt *stat;
5043 struct fc_rdp_res_frame *rdp_res;
5044 uint32_t cmdsize, len;
5048 if (status != SUCCESS)
5051 /* This will change once we know the true size of the RDP payload */
5052 cmdsize = sizeof(struct fc_rdp_res_frame);
5054 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
5055 lpfc_max_els_tries, rdp_context->ndlp,
5056 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
5059 goto free_rdp_context;
5061 icmd = &elsiocb->iocb;
5062 icmd->ulpContext = rdp_context->rx_id;
5063 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5065 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5066 "2171 Xmit RDP response tag x%x xri x%x, "
5067 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
5068 elsiocb->iotag, elsiocb->iocb.ulpContext,
5069 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5071 rdp_res = (struct fc_rdp_res_frame *)
5072 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5073 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5074 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
5075 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5077 /* Update Alarm and Warning */
5078 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS);
5079 phba->sfp_alarm |= *flag_ptr;
5080 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS);
5081 phba->sfp_warning |= *flag_ptr;
5083 /* For RDP payload */
5085 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
5086 (len + pcmd), ELS_CMD_RDP);
5088 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
5089 rdp_context->page_a0, rdp_context->page_a2);
5090 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
5092 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
5093 (len + pcmd), &rdp_context->link_stat);
5094 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
5095 (len + pcmd), phba);
5096 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
5097 (len + pcmd), vport, ndlp);
5098 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
5099 &rdp_context->link_stat);
5100 /* Check if nport is logged, BZ190632 */
5101 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
5102 goto lpfc_skip_descriptor;
5104 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
5105 &rdp_context->link_stat, vport);
5106 len += lpfc_rdp_res_oed_temp_desc(phba,
5107 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5108 rdp_context->page_a2);
5109 len += lpfc_rdp_res_oed_voltage_desc(phba,
5110 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5111 rdp_context->page_a2);
5112 len += lpfc_rdp_res_oed_txbias_desc(phba,
5113 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5114 rdp_context->page_a2);
5115 len += lpfc_rdp_res_oed_txpower_desc(phba,
5116 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5117 rdp_context->page_a2);
5118 len += lpfc_rdp_res_oed_rxpower_desc(phba,
5119 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5120 rdp_context->page_a2);
5121 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
5122 rdp_context->page_a0, vport);
5124 lpfc_skip_descriptor:
5125 rdp_res->length = cpu_to_be32(len - 8);
5126 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5128 /* Now that we know the true size of the payload, update the BPL */
5129 bpl = (struct ulp_bde64 *)
5130 (((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
5131 bpl->tus.f.bdeSize = len;
5132 bpl->tus.f.bdeFlags = 0;
5133 bpl->tus.w = le32_to_cpu(bpl->tus.w);
5135 phba->fc_stat.elsXmitACC++;
5136 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5137 if (rc == IOCB_ERROR)
5138 lpfc_els_free_iocb(phba, elsiocb);
5144 cmdsize = 2 * sizeof(uint32_t);
5145 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
5146 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
5149 goto free_rdp_context;
5151 icmd = &elsiocb->iocb;
5152 icmd->ulpContext = rdp_context->rx_id;
5153 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5154 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5156 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
5157 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5158 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5160 phba->fc_stat.elsXmitLSRJT++;
5161 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5162 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5164 if (rc == IOCB_ERROR)
5165 lpfc_els_free_iocb(phba, elsiocb);
5171 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
5173 LPFC_MBOXQ_t *mbox = NULL;
5176 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5178 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
5179 "7105 failed to allocate mailbox memory");
5183 if (lpfc_sli4_dump_page_a0(phba, mbox))
5184 goto prep_mbox_fail;
5185 mbox->vport = rdp_context->ndlp->vport;
5186 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
5187 mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
5188 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5189 if (rc == MBX_NOT_FINISHED)
5190 goto issue_mbox_fail;
5196 mempool_free(mbox, phba->mbox_mem_pool);
5201 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
5202 * @vport: pointer to a host virtual N_Port data structure.
5203 * @cmdiocb: pointer to lpfc command iocb data structure.
5204 * @ndlp: pointer to a node-list data structure.
5206 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
5207 * IOCB. First, the payload of the unsolicited RDP is checked.
5208 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
5209 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
5210 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
5211 * gather all data and send RDP response.
5214 * 0 - Sent the acc response
5215 * 1 - Sent the reject response.
5218 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5219 struct lpfc_nodelist *ndlp)
5221 struct lpfc_hba *phba = vport->phba;
5222 struct lpfc_dmabuf *pcmd;
5223 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
5224 struct fc_rdp_req_frame *rdp_req;
5225 struct lpfc_rdp_context *rdp_context;
5229 if (phba->sli_rev < LPFC_SLI_REV4 ||
5230 (bf_get(lpfc_sli_intf_if_type,
5231 &phba->sli4_hba.sli_intf) !=
5232 LPFC_SLI_INTF_IF_TYPE_2)) {
5233 rjt_err = LSRJT_UNABLE_TPC;
5234 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5238 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
5239 rjt_err = LSRJT_UNABLE_TPC;
5240 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5244 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5245 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
5248 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5249 "2422 ELS RDP Request "
5250 "dec len %d tag x%x port_id %d len %d\n",
5251 be32_to_cpu(rdp_req->rdp_des_length),
5252 be32_to_cpu(rdp_req->nport_id_desc.tag),
5253 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
5254 be32_to_cpu(rdp_req->nport_id_desc.length));
5256 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) &&
5257 !phba->cfg_enable_SmartSAN) {
5258 rjt_err = LSRJT_UNABLE_TPC;
5259 rjt_expl = LSEXP_PORT_LOGIN_REQ;
5262 if (sizeof(struct fc_rdp_nport_desc) !=
5263 be32_to_cpu(rdp_req->rdp_des_length))
5265 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
5267 if (RDP_NPORT_ID_SIZE !=
5268 be32_to_cpu(rdp_req->nport_id_desc.length))
5270 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
5272 rjt_err = LSRJT_UNABLE_TPC;
5276 cmd = &cmdiocb->iocb;
5277 rdp_context->ndlp = lpfc_nlp_get(ndlp);
5278 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
5279 rdp_context->rx_id = cmd->ulpContext;
5280 rdp_context->cmpl = lpfc_els_rdp_cmpl;
5281 if (lpfc_get_rdp_info(phba, rdp_context)) {
5282 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
5283 "2423 Unable to send mailbox");
5285 rjt_err = LSRJT_UNABLE_TPC;
5293 rjt_err = LSRJT_LOGICAL_ERR;
5296 memset(&stat, 0, sizeof(stat));
5297 stat.un.b.lsRjtRsnCode = rjt_err;
5298 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
5299 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5305 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5310 struct lpfc_iocbq *elsiocb;
5311 struct lpfc_nodelist *ndlp;
5312 struct ls_rjt *stat;
5313 union lpfc_sli4_cfg_shdr *shdr;
5314 struct lpfc_lcb_context *lcb_context;
5315 struct fc_lcb_res_frame *lcb_res;
5316 uint32_t cmdsize, shdr_status, shdr_add_status;
5320 lcb_context = (struct lpfc_lcb_context *)pmb->context1;
5321 ndlp = lcb_context->ndlp;
5322 pmb->context1 = NULL;
5323 pmb->context2 = NULL;
5325 shdr = (union lpfc_sli4_cfg_shdr *)
5326 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
5327 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5328 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5330 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
5331 "0194 SET_BEACON_CONFIG mailbox "
5332 "completed with status x%x add_status x%x,"
5333 " mbx status x%x\n",
5334 shdr_status, shdr_add_status, mb->mbxStatus);
5336 if (mb->mbxStatus && !(shdr_status &&
5337 shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)) {
5338 mempool_free(pmb, phba->mbox_mem_pool);
5342 mempool_free(pmb, phba->mbox_mem_pool);
5343 cmdsize = sizeof(struct fc_lcb_res_frame);
5344 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5345 lpfc_max_els_tries, ndlp,
5346 ndlp->nlp_DID, ELS_CMD_ACC);
5348 /* Decrement the ndlp reference count from previous mbox command */
5352 goto free_lcb_context;
5354 lcb_res = (struct fc_lcb_res_frame *)
5355 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5357 icmd = &elsiocb->iocb;
5358 icmd->ulpContext = lcb_context->rx_id;
5359 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5361 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5362 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
5363 lcb_res->lcb_sub_command = lcb_context->sub_command;
5364 lcb_res->lcb_type = lcb_context->type;
5365 lcb_res->lcb_frequency = lcb_context->frequency;
5366 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5367 phba->fc_stat.elsXmitACC++;
5368 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5369 if (rc == IOCB_ERROR)
5370 lpfc_els_free_iocb(phba, elsiocb);
5376 cmdsize = sizeof(struct fc_lcb_res_frame);
5377 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5378 lpfc_max_els_tries, ndlp,
5379 ndlp->nlp_DID, ELS_CMD_LS_RJT);
5382 goto free_lcb_context;
5384 icmd = &elsiocb->iocb;
5385 icmd->ulpContext = lcb_context->rx_id;
5386 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5387 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5389 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
5390 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5391 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5393 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5394 phba->fc_stat.elsXmitLSRJT++;
5395 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5396 if (rc == IOCB_ERROR)
5397 lpfc_els_free_iocb(phba, elsiocb);
5403 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
5404 struct lpfc_lcb_context *lcb_context,
5405 uint32_t beacon_state)
5407 struct lpfc_hba *phba = vport->phba;
5408 LPFC_MBOXQ_t *mbox = NULL;
5412 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5416 len = sizeof(struct lpfc_mbx_set_beacon_config) -
5417 sizeof(struct lpfc_sli4_cfg_mhdr);
5418 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5419 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
5420 LPFC_SLI4_MBX_EMBED);
5421 mbox->context1 = (void *)lcb_context;
5422 mbox->vport = phba->pport;
5423 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
5424 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
5425 phba->sli4_hba.physical_port);
5426 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
5428 bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1);
5429 bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0);
5430 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5431 if (rc == MBX_NOT_FINISHED) {
5432 mempool_free(mbox, phba->mbox_mem_pool);
5441 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5442 * @vport: pointer to a host virtual N_Port data structure.
5443 * @cmdiocb: pointer to lpfc command iocb data structure.
5444 * @ndlp: pointer to a node-list data structure.
5446 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5447 * First, the payload of the unsolicited LCB is checked.
5448 * Then based on Subcommand beacon will either turn on or off.
5451 * 0 - Sent the acc response
5452 * 1 - Sent the reject response.
5455 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5456 struct lpfc_nodelist *ndlp)
5458 struct lpfc_hba *phba = vport->phba;
5459 struct lpfc_dmabuf *pcmd;
5461 struct fc_lcb_request_frame *beacon;
5462 struct lpfc_lcb_context *lcb_context;
5463 uint8_t state, rjt_err;
5466 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
5467 lp = (uint8_t *)pcmd->virt;
5468 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
5470 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5471 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5472 "type x%x frequency %x duration x%x\n",
5473 lp[0], lp[1], lp[2],
5474 beacon->lcb_command,
5475 beacon->lcb_sub_command,
5477 beacon->lcb_frequency,
5478 be16_to_cpu(beacon->lcb_duration));
5480 if (phba->sli_rev < LPFC_SLI_REV4 ||
5481 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5482 LPFC_SLI_INTF_IF_TYPE_2)) {
5483 rjt_err = LSRJT_CMD_UNSUPPORTED;
5487 if (phba->hba_flag & HBA_FCOE_MODE) {
5488 rjt_err = LSRJT_CMD_UNSUPPORTED;
5491 if (beacon->lcb_frequency == 0) {
5492 rjt_err = LSRJT_CMD_UNSUPPORTED;
5495 if ((beacon->lcb_type != LPFC_LCB_GREEN) &&
5496 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5497 rjt_err = LSRJT_CMD_UNSUPPORTED;
5500 if ((beacon->lcb_sub_command != LPFC_LCB_ON) &&
5501 (beacon->lcb_sub_command != LPFC_LCB_OFF)) {
5502 rjt_err = LSRJT_CMD_UNSUPPORTED;
5505 if ((beacon->lcb_sub_command == LPFC_LCB_ON) &&
5506 (beacon->lcb_type != LPFC_LCB_GREEN) &&
5507 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5508 rjt_err = LSRJT_CMD_UNSUPPORTED;
5511 if (be16_to_cpu(beacon->lcb_duration) != 0) {
5512 rjt_err = LSRJT_CMD_UNSUPPORTED;
5516 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
5518 rjt_err = LSRJT_UNABLE_TPC;
5522 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
5523 lcb_context->sub_command = beacon->lcb_sub_command;
5524 lcb_context->type = beacon->lcb_type;
5525 lcb_context->frequency = beacon->lcb_frequency;
5526 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
5527 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
5528 lcb_context->ndlp = lpfc_nlp_get(ndlp);
5529 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
5530 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
5531 LOG_ELS, "0193 failed to send mail box");
5534 rjt_err = LSRJT_UNABLE_TPC;
5539 memset(&stat, 0, sizeof(stat));
5540 stat.un.b.lsRjtRsnCode = rjt_err;
5541 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5547 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5548 * @vport: pointer to a host virtual N_Port data structure.
5550 * This routine cleans up any Registration State Change Notification
5551 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5552 * @vport together with the host_lock is used to prevent multiple thread
5553 * trying to access the RSCN array on a same @vport at the same time.
5556 lpfc_els_flush_rscn(struct lpfc_vport *vport)
5558 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5559 struct lpfc_hba *phba = vport->phba;
5562 spin_lock_irq(shost->host_lock);
5563 if (vport->fc_rscn_flush) {
5564 /* Another thread is walking fc_rscn_id_list on this vport */
5565 spin_unlock_irq(shost->host_lock);
5568 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5569 vport->fc_rscn_flush = 1;
5570 spin_unlock_irq(shost->host_lock);
5572 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5573 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
5574 vport->fc_rscn_id_list[i] = NULL;
5576 spin_lock_irq(shost->host_lock);
5577 vport->fc_rscn_id_cnt = 0;
5578 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
5579 spin_unlock_irq(shost->host_lock);
5580 lpfc_can_disctmo(vport);
5581 /* Indicate we are done walking this fc_rscn_id_list */
5582 vport->fc_rscn_flush = 0;
5586 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5587 * @vport: pointer to a host virtual N_Port data structure.
5588 * @did: remote destination port identifier.
5590 * This routine checks whether there is any pending Registration State
5591 * Configuration Notification (RSCN) to a @did on @vport.
5594 * None zero - The @did matched with a pending rscn
5595 * 0 - not able to match @did with a pending rscn
5598 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
5603 uint32_t payload_len, i;
5604 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5606 ns_did.un.word = did;
5608 /* Never match fabric nodes for RSCNs */
5609 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
5612 /* If we are doing a FULL RSCN rediscovery, match everything */
5613 if (vport->fc_flag & FC_RSCN_DISCOVERY)
5616 spin_lock_irq(shost->host_lock);
5617 if (vport->fc_rscn_flush) {
5618 /* Another thread is walking fc_rscn_id_list on this vport */
5619 spin_unlock_irq(shost->host_lock);
5622 /* Indicate we are walking fc_rscn_id_list on this vport */
5623 vport->fc_rscn_flush = 1;
5624 spin_unlock_irq(shost->host_lock);
5625 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5626 lp = vport->fc_rscn_id_list[i]->virt;
5627 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5628 payload_len -= sizeof(uint32_t); /* take off word 0 */
5629 while (payload_len) {
5630 rscn_did.un.word = be32_to_cpu(*lp++);
5631 payload_len -= sizeof(uint32_t);
5632 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
5633 case RSCN_ADDRESS_FORMAT_PORT:
5634 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5635 && (ns_did.un.b.area == rscn_did.un.b.area)
5636 && (ns_did.un.b.id == rscn_did.un.b.id))
5637 goto return_did_out;
5639 case RSCN_ADDRESS_FORMAT_AREA:
5640 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5641 && (ns_did.un.b.area == rscn_did.un.b.area))
5642 goto return_did_out;
5644 case RSCN_ADDRESS_FORMAT_DOMAIN:
5645 if (ns_did.un.b.domain == rscn_did.un.b.domain)
5646 goto return_did_out;
5648 case RSCN_ADDRESS_FORMAT_FABRIC:
5649 goto return_did_out;
5653 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5654 vport->fc_rscn_flush = 0;
5657 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5658 vport->fc_rscn_flush = 0;
5663 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5664 * @vport: pointer to a host virtual N_Port data structure.
5666 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5667 * state machine for a @vport's nodes that are with pending RSCN (Registration
5668 * State Change Notification).
5671 * 0 - Successful (currently alway return 0)
5674 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
5676 struct lpfc_nodelist *ndlp = NULL;
5678 /* Move all affected nodes by pending RSCNs to NPR state. */
5679 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5680 if (!NLP_CHK_NODE_ACT(ndlp) ||
5681 (ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
5682 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
5684 lpfc_disc_state_machine(vport, ndlp, NULL,
5685 NLP_EVT_DEVICE_RECOVERY);
5686 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5692 * lpfc_send_rscn_event - Send an RSCN event to management application
5693 * @vport: pointer to a host virtual N_Port data structure.
5694 * @cmdiocb: pointer to lpfc command iocb data structure.
5696 * lpfc_send_rscn_event sends an RSCN netlink event to management
5700 lpfc_send_rscn_event(struct lpfc_vport *vport,
5701 struct lpfc_iocbq *cmdiocb)
5703 struct lpfc_dmabuf *pcmd;
5704 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5705 uint32_t *payload_ptr;
5706 uint32_t payload_len;
5707 struct lpfc_rscn_event_header *rscn_event_data;
5709 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5710 payload_ptr = (uint32_t *) pcmd->virt;
5711 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
5713 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
5714 payload_len, GFP_KERNEL);
5715 if (!rscn_event_data) {
5716 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5717 "0147 Failed to allocate memory for RSCN event\n");
5720 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
5721 rscn_event_data->payload_length = payload_len;
5722 memcpy(rscn_event_data->rscn_payload, payload_ptr,
5725 fc_host_post_vendor_event(shost,
5726 fc_get_event_number(),
5727 sizeof(struct lpfc_rscn_event_header) + payload_len,
5728 (char *)rscn_event_data,
5731 kfree(rscn_event_data);
5735 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5736 * @vport: pointer to a host virtual N_Port data structure.
5737 * @cmdiocb: pointer to lpfc command iocb data structure.
5738 * @ndlp: pointer to a node-list data structure.
5740 * This routine processes an unsolicited RSCN (Registration State Change
5741 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5742 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5743 * discover state machine is about to begin discovery, it just accepts the
5744 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5745 * contains N_Port IDs for other vports on this HBA, it just accepts the
5746 * RSCN and ignore processing it. If the state machine is in the recovery
5747 * state, the fc_rscn_id_list of this @vport is walked and the
5748 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5749 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5750 * routine is invoked to handle the RSCN event.
5753 * 0 - Just sent the acc response
5754 * 1 - Sent the acc response and waited for name server completion
5757 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5758 struct lpfc_nodelist *ndlp)
5760 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5761 struct lpfc_hba *phba = vport->phba;
5762 struct lpfc_dmabuf *pcmd;
5763 uint32_t *lp, *datap;
5764 uint32_t payload_len, length, nportid, *cmd;
5766 int rscn_id = 0, hba_id = 0;
5769 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5770 lp = (uint32_t *) pcmd->virt;
5772 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5773 payload_len -= sizeof(uint32_t); /* take off word 0 */
5775 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5776 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5777 vport->fc_flag, payload_len, *lp,
5778 vport->fc_rscn_id_cnt);
5780 /* Send an RSCN event to the management application */
5781 lpfc_send_rscn_event(vport, cmdiocb);
5783 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
5784 fc_host_post_event(shost, fc_get_event_number(),
5785 FCH_EVT_RSCN, lp[i]);
5787 /* If we are about to begin discovery, just ACC the RSCN.
5788 * Discovery processing will satisfy it.
5790 if (vport->port_state <= LPFC_NS_QRY) {
5791 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5792 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5793 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5795 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5799 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5800 * just ACC and ignore it.
5802 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5803 !(vport->cfg_peer_port_login)) {
5808 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
5809 i -= sizeof(uint32_t);
5811 if (lpfc_find_vport_by_did(phba, nportid))
5814 if (rscn_id == hba_id) {
5815 /* ALL NPortIDs in RSCN are on HBA */
5816 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5818 "Data: x%x x%x x%x x%x\n",
5819 vport->fc_flag, payload_len,
5820 *lp, vport->fc_rscn_id_cnt);
5821 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5822 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
5823 ndlp->nlp_DID, vport->port_state,
5826 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
5832 spin_lock_irq(shost->host_lock);
5833 if (vport->fc_rscn_flush) {
5834 /* Another thread is walking fc_rscn_id_list on this vport */
5835 vport->fc_flag |= FC_RSCN_DISCOVERY;
5836 spin_unlock_irq(shost->host_lock);
5838 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5841 /* Indicate we are walking fc_rscn_id_list on this vport */
5842 vport->fc_rscn_flush = 1;
5843 spin_unlock_irq(shost->host_lock);
5844 /* Get the array count after successfully have the token */
5845 rscn_cnt = vport->fc_rscn_id_cnt;
5846 /* If we are already processing an RSCN, save the received
5847 * RSCN payload buffer, cmdiocb->context2 to process later.
5849 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
5850 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5851 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
5852 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5854 spin_lock_irq(shost->host_lock);
5855 vport->fc_flag |= FC_RSCN_DEFERRED;
5856 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
5857 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
5858 vport->fc_flag |= FC_RSCN_MODE;
5859 spin_unlock_irq(shost->host_lock);
5861 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
5862 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
5865 (payload_len + length <= LPFC_BPL_SIZE)) {
5866 *cmd &= ELS_CMD_MASK;
5867 *cmd |= cpu_to_be32(payload_len + length);
5868 memcpy(((uint8_t *)cmd) + length, lp,
5871 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
5872 vport->fc_rscn_id_cnt++;
5873 /* If we zero, cmdiocb->context2, the calling
5874 * routine will not try to free it.
5876 cmdiocb->context2 = NULL;
5879 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5880 "0235 Deferred RSCN "
5881 "Data: x%x x%x x%x\n",
5882 vport->fc_rscn_id_cnt, vport->fc_flag,
5885 vport->fc_flag |= FC_RSCN_DISCOVERY;
5886 spin_unlock_irq(shost->host_lock);
5887 /* ReDiscovery RSCN */
5888 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5889 "0234 ReDiscovery RSCN "
5890 "Data: x%x x%x x%x\n",
5891 vport->fc_rscn_id_cnt, vport->fc_flag,
5894 /* Indicate we are done walking fc_rscn_id_list on this vport */
5895 vport->fc_rscn_flush = 0;
5897 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5898 /* send RECOVERY event for ALL nodes that match RSCN payload */
5899 lpfc_rscn_recovery_check(vport);
5900 spin_lock_irq(shost->host_lock);
5901 vport->fc_flag &= ~FC_RSCN_DEFERRED;
5902 spin_unlock_irq(shost->host_lock);
5905 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5906 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
5907 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5909 spin_lock_irq(shost->host_lock);
5910 vport->fc_flag |= FC_RSCN_MODE;
5911 spin_unlock_irq(shost->host_lock);
5912 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
5913 /* Indicate we are done walking fc_rscn_id_list on this vport */
5914 vport->fc_rscn_flush = 0;
5916 * If we zero, cmdiocb->context2, the calling routine will
5917 * not try to free it.
5919 cmdiocb->context2 = NULL;
5920 lpfc_set_disctmo(vport);
5922 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5923 /* send RECOVERY event for ALL nodes that match RSCN payload */
5924 lpfc_rscn_recovery_check(vport);
5925 return lpfc_els_handle_rscn(vport);
5929 * lpfc_els_handle_rscn - Handle rscn for a vport
5930 * @vport: pointer to a host virtual N_Port data structure.
5932 * This routine handles the Registration State Configuration Notification
5933 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5934 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5935 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5936 * NameServer shall be issued. If CT command to the NameServer fails to be
5937 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5938 * RSCN activities with the @vport.
5941 * 0 - Cleaned up rscn on the @vport
5942 * 1 - Wait for plogi to name server before proceed
5945 lpfc_els_handle_rscn(struct lpfc_vport *vport)
5947 struct lpfc_nodelist *ndlp;
5948 struct lpfc_hba *phba = vport->phba;
5950 /* Ignore RSCN if the port is being torn down. */
5951 if (vport->load_flag & FC_UNLOADING) {
5952 lpfc_els_flush_rscn(vport);
5956 /* Start timer for RSCN processing */
5957 lpfc_set_disctmo(vport);
5959 /* RSCN processed */
5960 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5961 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5962 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
5965 /* To process RSCN, first compare RSCN data with NameServer */
5966 vport->fc_ns_retry = 0;
5967 vport->num_disc_nodes = 0;
5969 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5970 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
5971 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
5972 /* Good ndlp, issue CT Request to NameServer */
5973 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0)
5974 /* Wait for NameServer query cmpl before we can
5978 /* If login to NameServer does not exist, issue one */
5979 /* Good status, issue PLOGI to NameServer */
5980 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5981 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5982 /* Wait for NameServer login cmpl before we can
5987 ndlp = lpfc_enable_node(vport, ndlp,
5988 NLP_STE_PLOGI_ISSUE);
5990 lpfc_els_flush_rscn(vport);
5993 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
5995 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
5997 lpfc_els_flush_rscn(vport);
6000 lpfc_nlp_init(vport, ndlp, NameServer_DID);
6001 ndlp->nlp_prev_state = ndlp->nlp_state;
6002 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
6004 ndlp->nlp_type |= NLP_FABRIC;
6005 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
6006 /* Wait for NameServer login cmpl before we can
6012 lpfc_els_flush_rscn(vport);
6017 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
6018 * @vport: pointer to a host virtual N_Port data structure.
6019 * @cmdiocb: pointer to lpfc command iocb data structure.
6020 * @ndlp: pointer to a node-list data structure.
6022 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
6023 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
6024 * point topology. As an unsolicited FLOGI should not be received in a loop
6025 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
6026 * lpfc_check_sparm() routine is invoked to check the parameters in the
6027 * unsolicited FLOGI. If parameters validation failed, the routine
6028 * lpfc_els_rsp_reject() shall be called with reject reason code set to
6029 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
6030 * FLOGI shall be compared with the Port WWN of the @vport to determine who
6031 * will initiate PLOGI. The higher lexicographical value party shall has
6032 * higher priority (as the winning port) and will initiate PLOGI and
6033 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
6034 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
6035 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
6038 * 0 - Successfully processed the unsolicited flogi
6039 * 1 - Failed to process the unsolicited flogi
6042 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6043 struct lpfc_nodelist *ndlp)
6045 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6046 struct lpfc_hba *phba = vport->phba;
6047 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6048 uint32_t *lp = (uint32_t *) pcmd->virt;
6049 IOCB_t *icmd = &cmdiocb->iocb;
6050 struct serv_parm *sp;
6054 uint32_t fc_flag = 0;
6055 uint32_t port_state = 0;
6058 sp = (struct serv_parm *) lp;
6060 /* FLOGI received */
6062 lpfc_set_disctmo(vport);
6064 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6065 /* We should never receive a FLOGI in loop mode, ignore it */
6066 did = icmd->un.elsreq64.remoteID;
6068 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
6070 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
6071 "0113 An FLOGI ELS command x%x was "
6072 "received from DID x%x in Loop Mode\n",
6077 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
6081 * If our portname is greater than the remote portname,
6082 * then we initiate Nport login.
6085 rc = memcmp(&vport->fc_portname, &sp->portName,
6086 sizeof(struct lpfc_name));
6089 if (phba->sli_rev < LPFC_SLI_REV4) {
6090 mbox = mempool_alloc(phba->mbox_mem_pool,
6094 lpfc_linkdown(phba);
6095 lpfc_init_link(phba, mbox,
6097 phba->cfg_link_speed);
6098 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
6099 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6100 mbox->vport = vport;
6101 rc = lpfc_sli_issue_mbox(phba, mbox,
6103 lpfc_set_loopback_flag(phba);
6104 if (rc == MBX_NOT_FINISHED)
6105 mempool_free(mbox, phba->mbox_mem_pool);
6109 /* abort the flogi coming back to ourselves
6110 * due to external loopback on the port.
6112 lpfc_els_abort_flogi(phba);
6115 } else if (rc > 0) { /* greater than */
6116 spin_lock_irq(shost->host_lock);
6117 vport->fc_flag |= FC_PT2PT_PLOGI;
6118 spin_unlock_irq(shost->host_lock);
6120 /* If we have the high WWPN we can assign our own
6121 * myDID; otherwise, we have to WAIT for a PLOGI
6122 * from the remote NPort to find out what it
6125 vport->fc_myDID = PT2PT_LocalID;
6127 vport->fc_myDID = PT2PT_RemoteID;
6131 * The vport state should go to LPFC_FLOGI only
6132 * AFTER we issue a FLOGI, not receive one.
6134 spin_lock_irq(shost->host_lock);
6135 fc_flag = vport->fc_flag;
6136 port_state = vport->port_state;
6137 vport->fc_flag |= FC_PT2PT;
6138 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
6139 spin_unlock_irq(shost->host_lock);
6140 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6141 "3311 Rcv Flogi PS x%x new PS x%x "
6142 "fc_flag x%x new fc_flag x%x\n",
6143 port_state, vport->port_state,
6144 fc_flag, vport->fc_flag);
6147 * We temporarily set fc_myDID to make it look like we are
6148 * a Fabric. This is done just so we end up with the right
6149 * did / sid on the FLOGI ACC rsp.
6151 did = vport->fc_myDID;
6152 vport->fc_myDID = Fabric_DID;
6154 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
6157 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
6159 /* Now lets put fc_myDID back to what its supposed to be */
6160 vport->fc_myDID = did;
6166 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
6167 * @vport: pointer to a host virtual N_Port data structure.
6168 * @cmdiocb: pointer to lpfc command iocb data structure.
6169 * @ndlp: pointer to a node-list data structure.
6171 * This routine processes Request Node Identification Data (RNID) IOCB
6172 * received as an ELS unsolicited event. Only when the RNID specified format
6173 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
6174 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
6175 * Accept (ACC) the RNID ELS command. All the other RNID formats are
6176 * rejected by invoking the lpfc_els_rsp_reject() routine.
6179 * 0 - Successfully processed rnid iocb (currently always return 0)
6182 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6183 struct lpfc_nodelist *ndlp)
6185 struct lpfc_dmabuf *pcmd;
6191 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6192 lp = (uint32_t *) pcmd->virt;
6199 switch (rn->Format) {
6201 case RNID_TOPOLOGY_DISC:
6203 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
6206 /* Reject this request because format not supported */
6207 stat.un.b.lsRjtRsvd0 = 0;
6208 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6209 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6210 stat.un.b.vendorUnique = 0;
6211 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6218 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
6219 * @vport: pointer to a host virtual N_Port data structure.
6220 * @cmdiocb: pointer to lpfc command iocb data structure.
6221 * @ndlp: pointer to a node-list data structure.
6224 * 0 - Successfully processed echo iocb (currently always return 0)
6227 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6228 struct lpfc_nodelist *ndlp)
6232 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
6234 /* skip over first word of echo command to find echo data */
6235 pcmd += sizeof(uint32_t);
6237 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
6242 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
6243 * @vport: pointer to a host virtual N_Port data structure.
6244 * @cmdiocb: pointer to lpfc command iocb data structure.
6245 * @ndlp: pointer to a node-list data structure.
6247 * This routine processes a Link Incident Report Registration(LIRR) IOCB
6248 * received as an ELS unsolicited event. Currently, this function just invokes
6249 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
6252 * 0 - Successfully processed lirr iocb (currently always return 0)
6255 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6256 struct lpfc_nodelist *ndlp)
6260 /* For now, unconditionally reject this command */
6261 stat.un.b.lsRjtRsvd0 = 0;
6262 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6263 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6264 stat.un.b.vendorUnique = 0;
6265 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6270 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
6271 * @vport: pointer to a host virtual N_Port data structure.
6272 * @cmdiocb: pointer to lpfc command iocb data structure.
6273 * @ndlp: pointer to a node-list data structure.
6275 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
6276 * received as an ELS unsolicited event. A request to RRQ shall only
6277 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
6278 * Nx_Port N_Port_ID of the target Exchange is the same as the
6279 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
6280 * not accepted, an LS_RJT with reason code "Unable to perform
6281 * command request" and reason code explanation "Invalid Originator
6282 * S_ID" shall be returned. For now, we just unconditionally accept
6283 * RRQ from the target.
6286 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6287 struct lpfc_nodelist *ndlp)
6289 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6290 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6291 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
6295 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6296 * @phba: pointer to lpfc hba data structure.
6297 * @pmb: pointer to the driver internal queue element for mailbox command.
6299 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6300 * mailbox command. This callback function is to actually send the Accept
6301 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6302 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6303 * mailbox command, constructs the RPS response with the link statistics
6304 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6305 * response to the RPS.
6307 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6308 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6309 * will be stored into the context1 field of the IOCB for the completion
6310 * callback function to the RPS Accept Response ELS IOCB command.
6314 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6318 struct RLS_RSP *rls_rsp;
6320 struct lpfc_iocbq *elsiocb;
6321 struct lpfc_nodelist *ndlp;
6328 ndlp = (struct lpfc_nodelist *) pmb->context2;
6329 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6330 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6331 pmb->context1 = NULL;
6332 pmb->context2 = NULL;
6334 if (mb->mbxStatus) {
6335 mempool_free(pmb, phba->mbox_mem_pool);
6339 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
6340 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6341 lpfc_max_els_tries, ndlp,
6342 ndlp->nlp_DID, ELS_CMD_ACC);
6344 /* Decrement the ndlp reference count from previous mbox command */
6348 mempool_free(pmb, phba->mbox_mem_pool);
6352 icmd = &elsiocb->iocb;
6353 icmd->ulpContext = rxid;
6354 icmd->unsli3.rcvsli3.ox_id = oxid;
6356 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6357 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6358 pcmd += sizeof(uint32_t); /* Skip past command */
6359 rls_rsp = (struct RLS_RSP *)pcmd;
6361 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6362 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6363 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6364 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6365 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6366 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6367 mempool_free(pmb, phba->mbox_mem_pool);
6368 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6369 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6370 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6371 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6372 elsiocb->iotag, elsiocb->iocb.ulpContext,
6373 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6375 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6376 phba->fc_stat.elsXmitACC++;
6377 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6378 lpfc_els_free_iocb(phba, elsiocb);
6382 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6383 * @phba: pointer to lpfc hba data structure.
6384 * @pmb: pointer to the driver internal queue element for mailbox command.
6386 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6387 * mailbox command. This callback function is to actually send the Accept
6388 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6389 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6390 * mailbox command, constructs the RPS response with the link statistics
6391 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6392 * response to the RPS.
6394 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6395 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6396 * will be stored into the context1 field of the IOCB for the completion
6397 * callback function to the RPS Accept Response ELS IOCB command.
6401 lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6407 struct lpfc_iocbq *elsiocb;
6408 struct lpfc_nodelist *ndlp;
6416 ndlp = (struct lpfc_nodelist *) pmb->context2;
6417 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6418 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6419 pmb->context1 = NULL;
6420 pmb->context2 = NULL;
6422 if (mb->mbxStatus) {
6423 mempool_free(pmb, phba->mbox_mem_pool);
6427 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
6428 mempool_free(pmb, phba->mbox_mem_pool);
6429 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6430 lpfc_max_els_tries, ndlp,
6431 ndlp->nlp_DID, ELS_CMD_ACC);
6433 /* Decrement the ndlp reference count from previous mbox command */
6439 icmd = &elsiocb->iocb;
6440 icmd->ulpContext = rxid;
6441 icmd->unsli3.rcvsli3.ox_id = oxid;
6443 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6444 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6445 pcmd += sizeof(uint32_t); /* Skip past command */
6446 rps_rsp = (RPS_RSP *)pcmd;
6448 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
6452 if (phba->pport->fc_flag & FC_FABRIC)
6456 rps_rsp->portStatus = cpu_to_be16(status);
6457 rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6458 rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6459 rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6460 rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6461 rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6462 rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6463 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6464 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6465 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6466 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6467 elsiocb->iotag, elsiocb->iocb.ulpContext,
6468 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6470 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6471 phba->fc_stat.elsXmitACC++;
6472 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6473 lpfc_els_free_iocb(phba, elsiocb);
6478 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6479 * @vport: pointer to a host virtual N_Port data structure.
6480 * @cmdiocb: pointer to lpfc command iocb data structure.
6481 * @ndlp: pointer to a node-list data structure.
6483 * This routine processes Read Port Status (RPL) IOCB received as an
6484 * ELS unsolicited event. It first checks the remote port state. If the
6485 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6486 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6487 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6488 * for reading the HBA link statistics. It is for the callback function,
6489 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6490 * to actually sending out RPL Accept (ACC) response.
6493 * 0 - Successfully processed rls iocb (currently always return 0)
6496 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6497 struct lpfc_nodelist *ndlp)
6499 struct lpfc_hba *phba = vport->phba;
6503 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6504 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6505 /* reject the unsolicited RPS request and done with it */
6508 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6510 lpfc_read_lnk_stat(phba, mbox);
6511 mbox->context1 = (void *)((unsigned long)
6512 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6513 cmdiocb->iocb.ulpContext)); /* rx_id */
6514 mbox->context2 = lpfc_nlp_get(ndlp);
6515 mbox->vport = vport;
6516 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
6517 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6518 != MBX_NOT_FINISHED)
6519 /* Mbox completion will send ELS Response */
6521 /* Decrement reference count used for the failed mbox
6525 mempool_free(mbox, phba->mbox_mem_pool);
6528 /* issue rejection response */
6529 stat.un.b.lsRjtRsvd0 = 0;
6530 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6531 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6532 stat.un.b.vendorUnique = 0;
6533 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6538 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6539 * @vport: pointer to a host virtual N_Port data structure.
6540 * @cmdiocb: pointer to lpfc command iocb data structure.
6541 * @ndlp: pointer to a node-list data structure.
6543 * This routine processes Read Timout Value (RTV) IOCB received as an
6544 * ELS unsolicited event. It first checks the remote port state. If the
6545 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6546 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6547 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6548 * Value (RTV) unsolicited IOCB event.
6550 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6551 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6552 * will be stored into the context1 field of the IOCB for the completion
6553 * callback function to the RPS Accept Response ELS IOCB command.
6556 * 0 - Successfully processed rtv iocb (currently always return 0)
6559 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6560 struct lpfc_nodelist *ndlp)
6562 struct lpfc_hba *phba = vport->phba;
6564 struct RTV_RSP *rtv_rsp;
6566 struct lpfc_iocbq *elsiocb;
6570 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6571 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6572 /* reject the unsolicited RPS request and done with it */
6575 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
6576 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6577 lpfc_max_els_tries, ndlp,
6578 ndlp->nlp_DID, ELS_CMD_ACC);
6583 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6584 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6585 pcmd += sizeof(uint32_t); /* Skip past command */
6587 /* use the command's xri in the response */
6588 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
6589 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
6591 rtv_rsp = (struct RTV_RSP *)pcmd;
6593 /* populate RTV payload */
6594 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
6595 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
6596 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
6597 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
6598 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
6600 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6601 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6602 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6603 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6604 "Data: x%x x%x x%x\n",
6605 elsiocb->iotag, elsiocb->iocb.ulpContext,
6606 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6608 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
6609 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6610 phba->fc_stat.elsXmitACC++;
6611 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6612 lpfc_els_free_iocb(phba, elsiocb);
6616 /* issue rejection response */
6617 stat.un.b.lsRjtRsvd0 = 0;
6618 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6619 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6620 stat.un.b.vendorUnique = 0;
6621 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6625 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6626 * @vport: pointer to a host virtual N_Port data structure.
6627 * @cmdiocb: pointer to lpfc command iocb data structure.
6628 * @ndlp: pointer to a node-list data structure.
6630 * This routine processes Read Port Status (RPS) IOCB received as an
6631 * ELS unsolicited event. It first checks the remote port state. If the
6632 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6633 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6634 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6635 * for reading the HBA link statistics. It is for the callback function,
6636 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6637 * to actually sending out RPS Accept (ACC) response.
6640 * 0 - Successfully processed rps iocb (currently always return 0)
6643 lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6644 struct lpfc_nodelist *ndlp)
6646 struct lpfc_hba *phba = vport->phba;
6650 struct lpfc_dmabuf *pcmd;
6654 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6655 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6656 /* reject the unsolicited RPS request and done with it */
6659 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6660 lp = (uint32_t *) pcmd->virt;
6661 flag = (be32_to_cpu(*lp++) & 0xf);
6665 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
6666 ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
6667 sizeof(struct lpfc_name)) == 0))) {
6669 printk("Fix me....\n");
6671 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6673 lpfc_read_lnk_stat(phba, mbox);
6674 mbox->context1 = (void *)((unsigned long)
6675 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6676 cmdiocb->iocb.ulpContext)); /* rx_id */
6677 mbox->context2 = lpfc_nlp_get(ndlp);
6678 mbox->vport = vport;
6679 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
6680 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6681 != MBX_NOT_FINISHED)
6682 /* Mbox completion will send ELS Response */
6684 /* Decrement reference count used for the failed mbox
6688 mempool_free(mbox, phba->mbox_mem_pool);
6693 /* issue rejection response */
6694 stat.un.b.lsRjtRsvd0 = 0;
6695 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6696 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6697 stat.un.b.vendorUnique = 0;
6698 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6702 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6703 * @vport: pointer to a host virtual N_Port data structure.
6704 * @ndlp: pointer to a node-list data structure.
6705 * @did: DID of the target.
6706 * @rrq: Pointer to the rrq struct.
6708 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6709 * Successful the the completion handler will clear the RRQ.
6712 * 0 - Successfully sent rrq els iocb.
6713 * 1 - Failed to send rrq els iocb.
6716 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
6717 uint32_t did, struct lpfc_node_rrq *rrq)
6719 struct lpfc_hba *phba = vport->phba;
6720 struct RRQ *els_rrq;
6721 struct lpfc_iocbq *elsiocb;
6727 if (ndlp != rrq->ndlp)
6729 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
6732 /* If ndlp is not NULL, we will bump the reference count on it */
6733 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
6734 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
6739 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6741 /* For RRQ request, remainder of payload is Exchange IDs */
6742 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
6743 pcmd += sizeof(uint32_t);
6744 els_rrq = (struct RRQ *) pcmd;
6746 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
6747 bf_set(rrq_rxid, els_rrq, rrq->rxid);
6748 bf_set(rrq_did, els_rrq, vport->fc_myDID);
6749 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
6750 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
6753 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
6754 "Issue RRQ: did:x%x",
6755 did, rrq->xritag, rrq->rxid);
6756 elsiocb->context_un.rrq = rrq;
6757 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
6758 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6760 if (ret == IOCB_ERROR) {
6761 lpfc_els_free_iocb(phba, elsiocb);
6768 * lpfc_send_rrq - Sends ELS RRQ if needed.
6769 * @phba: pointer to lpfc hba data structure.
6770 * @rrq: pointer to the active rrq.
6772 * This routine will call the lpfc_issue_els_rrq if the rrq is
6773 * still active for the xri. If this function returns a failure then
6774 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6776 * Returns 0 Success.
6780 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
6782 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
6784 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
6785 return lpfc_issue_els_rrq(rrq->vport, ndlp,
6792 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6793 * @vport: pointer to a host virtual N_Port data structure.
6794 * @cmdsize: size of the ELS command.
6795 * @oldiocb: pointer to the original lpfc command iocb data structure.
6796 * @ndlp: pointer to a node-list data structure.
6798 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6799 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6801 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6802 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6803 * will be stored into the context1 field of the IOCB for the completion
6804 * callback function to the RPL Accept Response ELS command.
6807 * 0 - Successfully issued ACC RPL ELS command
6808 * 1 - Failed to issue ACC RPL ELS command
6811 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
6812 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
6814 struct lpfc_hba *phba = vport->phba;
6815 IOCB_t *icmd, *oldcmd;
6817 struct lpfc_iocbq *elsiocb;
6820 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
6821 ndlp->nlp_DID, ELS_CMD_ACC);
6826 icmd = &elsiocb->iocb;
6827 oldcmd = &oldiocb->iocb;
6828 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6829 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
6831 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6832 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6833 pcmd += sizeof(uint16_t);
6834 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
6835 pcmd += sizeof(uint16_t);
6837 /* Setup the RPL ACC payload */
6838 rpl_rsp.listLen = be32_to_cpu(1);
6840 rpl_rsp.port_num_blk.portNum = 0;
6841 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
6842 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
6843 sizeof(struct lpfc_name));
6844 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
6845 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
6846 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6847 "0120 Xmit ELS RPL ACC response tag x%x "
6848 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
6850 elsiocb->iotag, elsiocb->iocb.ulpContext,
6851 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6853 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6854 phba->fc_stat.elsXmitACC++;
6855 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
6857 lpfc_els_free_iocb(phba, elsiocb);
6864 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
6865 * @vport: pointer to a host virtual N_Port data structure.
6866 * @cmdiocb: pointer to lpfc command iocb data structure.
6867 * @ndlp: pointer to a node-list data structure.
6869 * This routine processes Read Port List (RPL) IOCB received as an ELS
6870 * unsolicited event. It first checks the remote port state. If the remote
6871 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
6872 * invokes the lpfc_els_rsp_reject() routine to send reject response.
6873 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
6874 * to accept the RPL.
6877 * 0 - Successfully processed rpl iocb (currently always return 0)
6880 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6881 struct lpfc_nodelist *ndlp)
6883 struct lpfc_dmabuf *pcmd;
6890 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6891 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
6892 /* issue rejection response */
6893 stat.un.b.lsRjtRsvd0 = 0;
6894 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6895 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6896 stat.un.b.vendorUnique = 0;
6897 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6899 /* rejected the unsolicited RPL request and done with it */
6903 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6904 lp = (uint32_t *) pcmd->virt;
6905 rpl = (RPL *) (lp + 1);
6906 maxsize = be32_to_cpu(rpl->maxsize);
6908 /* We support only one port */
6909 if ((rpl->index == 0) &&
6911 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
6912 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
6914 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
6916 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
6922 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6923 * @vport: pointer to a virtual N_Port data structure.
6924 * @cmdiocb: pointer to lpfc command iocb data structure.
6925 * @ndlp: pointer to a node-list data structure.
6927 * This routine processes Fibre Channel Address Resolution Protocol
6928 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6929 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6930 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6931 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6932 * remote PortName is compared against the FC PortName stored in the @vport
6933 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6934 * compared against the FC NodeName stored in the @vport data structure.
6935 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6936 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6937 * invoked to send out FARP Response to the remote node. Before sending the
6938 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6939 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6940 * routine is invoked to log into the remote port first.
6943 * 0 - Either the FARP Match Mode not supported or successfully processed
6946 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6947 struct lpfc_nodelist *ndlp)
6949 struct lpfc_dmabuf *pcmd;
6953 uint32_t cmd, cnt, did;
6955 icmd = &cmdiocb->iocb;
6956 did = icmd->un.elsreq64.remoteID;
6957 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6958 lp = (uint32_t *) pcmd->virt;
6962 /* FARP-REQ received from DID <did> */
6963 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6964 "0601 FARP-REQ received from DID x%x\n", did);
6965 /* We will only support match on WWPN or WWNN */
6966 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
6971 /* If this FARP command is searching for my portname */
6972 if (fp->Mflags & FARP_MATCH_PORT) {
6973 if (memcmp(&fp->RportName, &vport->fc_portname,
6974 sizeof(struct lpfc_name)) == 0)
6978 /* If this FARP command is searching for my nodename */
6979 if (fp->Mflags & FARP_MATCH_NODE) {
6980 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
6981 sizeof(struct lpfc_name)) == 0)
6986 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
6987 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
6988 /* Log back into the node before sending the FARP. */
6989 if (fp->Rflags & FARP_REQUEST_PLOGI) {
6990 ndlp->nlp_prev_state = ndlp->nlp_state;
6991 lpfc_nlp_set_state(vport, ndlp,
6992 NLP_STE_PLOGI_ISSUE);
6993 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
6996 /* Send a FARP response to that node */
6997 if (fp->Rflags & FARP_REQUEST_FARPR)
6998 lpfc_issue_els_farpr(vport, did, 0);
7005 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
7006 * @vport: pointer to a host virtual N_Port data structure.
7007 * @cmdiocb: pointer to lpfc command iocb data structure.
7008 * @ndlp: pointer to a node-list data structure.
7010 * This routine processes Fibre Channel Address Resolution Protocol
7011 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
7012 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
7013 * the FARP response request.
7016 * 0 - Successfully processed FARPR IOCB (currently always return 0)
7019 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7020 struct lpfc_nodelist *ndlp)
7022 struct lpfc_dmabuf *pcmd;
7027 icmd = &cmdiocb->iocb;
7028 did = icmd->un.elsreq64.remoteID;
7029 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7030 lp = (uint32_t *) pcmd->virt;
7033 /* FARP-RSP received from DID <did> */
7034 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7035 "0600 FARP-RSP received from DID x%x\n", did);
7036 /* ACCEPT the Farp resp request */
7037 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
7043 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
7044 * @vport: pointer to a host virtual N_Port data structure.
7045 * @cmdiocb: pointer to lpfc command iocb data structure.
7046 * @fan_ndlp: pointer to a node-list data structure.
7048 * This routine processes a Fabric Address Notification (FAN) IOCB
7049 * command received as an ELS unsolicited event. The FAN ELS command will
7050 * only be processed on a physical port (i.e., the @vport represents the
7051 * physical port). The fabric NodeName and PortName from the FAN IOCB are
7052 * compared against those in the phba data structure. If any of those is
7053 * different, the lpfc_initial_flogi() routine is invoked to initialize
7054 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
7055 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
7056 * is invoked to register login to the fabric.
7059 * 0 - Successfully processed fan iocb (currently always return 0).
7062 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7063 struct lpfc_nodelist *fan_ndlp)
7065 struct lpfc_hba *phba = vport->phba;
7069 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
7070 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
7072 /* FAN received; Fan does not have a reply sequence */
7073 if ((vport == phba->pport) &&
7074 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
7075 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
7076 sizeof(struct lpfc_name))) ||
7077 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
7078 sizeof(struct lpfc_name)))) {
7079 /* This port has switched fabrics. FLOGI is required */
7080 lpfc_issue_init_vfi(vport);
7082 /* FAN verified - skip FLOGI */
7083 vport->fc_myDID = vport->fc_prevDID;
7084 if (phba->sli_rev < LPFC_SLI_REV4)
7085 lpfc_issue_fabric_reglogin(vport);
7087 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7088 "3138 Need register VFI: (x%x/%x)\n",
7089 vport->fc_prevDID, vport->fc_myDID);
7090 lpfc_issue_reg_vfi(vport);
7098 * lpfc_els_timeout - Handler funciton to the els timer
7099 * @ptr: holder for the timer function associated data.
7101 * This routine is invoked by the ELS timer after timeout. It posts the ELS
7102 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
7103 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
7104 * up the worker thread. It is for the worker thread to invoke the routine
7105 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
7108 lpfc_els_timeout(unsigned long ptr)
7110 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
7111 struct lpfc_hba *phba = vport->phba;
7112 uint32_t tmo_posted;
7113 unsigned long iflag;
7115 spin_lock_irqsave(&vport->work_port_lock, iflag);
7116 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
7117 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
7118 vport->work_port_events |= WORKER_ELS_TMO;
7119 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
7121 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
7122 lpfc_worker_wake_up(phba);
7128 * lpfc_els_timeout_handler - Process an els timeout event
7129 * @vport: pointer to a virtual N_Port data structure.
7131 * This routine is the actual handler function that processes an ELS timeout
7132 * event. It walks the ELS ring to get and abort all the IOCBs (except the
7133 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
7134 * invoking the lpfc_sli_issue_abort_iotag() routine.
7137 lpfc_els_timeout_handler(struct lpfc_vport *vport)
7139 struct lpfc_hba *phba = vport->phba;
7140 struct lpfc_sli_ring *pring;
7141 struct lpfc_iocbq *tmp_iocb, *piocb;
7143 struct lpfc_dmabuf *pcmd;
7144 uint32_t els_command = 0;
7146 uint32_t remote_ID = 0xffffffff;
7147 LIST_HEAD(abort_list);
7150 timeout = (uint32_t)(phba->fc_ratov << 1);
7152 pring = &phba->sli.ring[LPFC_ELS_RING];
7153 if ((phba->pport->load_flag & FC_UNLOADING))
7155 spin_lock_irq(&phba->hbalock);
7156 if (phba->sli_rev == LPFC_SLI_REV4)
7157 spin_lock(&pring->ring_lock);
7159 if ((phba->pport->load_flag & FC_UNLOADING)) {
7160 if (phba->sli_rev == LPFC_SLI_REV4)
7161 spin_unlock(&pring->ring_lock);
7162 spin_unlock_irq(&phba->hbalock);
7166 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7169 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
7170 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
7171 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
7174 if (piocb->vport != vport)
7177 pcmd = (struct lpfc_dmabuf *) piocb->context2;
7179 els_command = *(uint32_t *) (pcmd->virt);
7181 if (els_command == ELS_CMD_FARP ||
7182 els_command == ELS_CMD_FARPR ||
7183 els_command == ELS_CMD_FDISC)
7186 if (piocb->drvrTimeout > 0) {
7187 if (piocb->drvrTimeout >= timeout)
7188 piocb->drvrTimeout -= timeout;
7190 piocb->drvrTimeout = 0;
7194 remote_ID = 0xffffffff;
7195 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
7196 remote_ID = cmd->un.elsreq64.remoteID;
7198 struct lpfc_nodelist *ndlp;
7199 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
7200 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
7201 remote_ID = ndlp->nlp_DID;
7203 list_add_tail(&piocb->dlist, &abort_list);
7205 if (phba->sli_rev == LPFC_SLI_REV4)
7206 spin_unlock(&pring->ring_lock);
7207 spin_unlock_irq(&phba->hbalock);
7209 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7211 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7212 "0127 ELS timeout Data: x%x x%x x%x "
7213 "x%x\n", els_command,
7214 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
7215 spin_lock_irq(&phba->hbalock);
7216 list_del_init(&piocb->dlist);
7217 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7218 spin_unlock_irq(&phba->hbalock);
7221 if (!list_empty(&phba->sli.ring[LPFC_ELS_RING].txcmplq))
7222 if (!(phba->pport->load_flag & FC_UNLOADING))
7223 mod_timer(&vport->els_tmofunc,
7224 jiffies + msecs_to_jiffies(1000 * timeout));
7228 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
7229 * @vport: pointer to a host virtual N_Port data structure.
7231 * This routine is used to clean up all the outstanding ELS commands on a
7232 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
7233 * routine. After that, it walks the ELS transmit queue to remove all the
7234 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
7235 * the IOCBs with a non-NULL completion callback function, the callback
7236 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7237 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
7238 * callback function, the IOCB will simply be released. Finally, it walks
7239 * the ELS transmit completion queue to issue an abort IOCB to any transmit
7240 * completion queue IOCB that is associated with the @vport and is not
7241 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
7242 * part of the discovery state machine) out to HBA by invoking the
7243 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
7244 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
7245 * the IOCBs are aborted when this function returns.
7248 lpfc_els_flush_cmd(struct lpfc_vport *vport)
7250 LIST_HEAD(abort_list);
7251 struct lpfc_hba *phba = vport->phba;
7252 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7253 struct lpfc_iocbq *tmp_iocb, *piocb;
7256 lpfc_fabric_abort_vport(vport);
7258 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
7259 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
7260 * ultimately grabs the ring_lock, the driver must splice the list into
7261 * a working list and release the locks before calling the abort.
7263 spin_lock_irq(&phba->hbalock);
7264 if (phba->sli_rev == LPFC_SLI_REV4)
7265 spin_lock(&pring->ring_lock);
7267 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7268 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
7271 if (piocb->vport != vport)
7273 list_add_tail(&piocb->dlist, &abort_list);
7275 if (phba->sli_rev == LPFC_SLI_REV4)
7276 spin_unlock(&pring->ring_lock);
7277 spin_unlock_irq(&phba->hbalock);
7278 /* Abort each iocb on the aborted list and remove the dlist links. */
7279 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7280 spin_lock_irq(&phba->hbalock);
7281 list_del_init(&piocb->dlist);
7282 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7283 spin_unlock_irq(&phba->hbalock);
7285 if (!list_empty(&abort_list))
7286 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7287 "3387 abort list for txq not empty\n");
7288 INIT_LIST_HEAD(&abort_list);
7290 spin_lock_irq(&phba->hbalock);
7291 if (phba->sli_rev == LPFC_SLI_REV4)
7292 spin_lock(&pring->ring_lock);
7294 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
7297 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
7301 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7302 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
7303 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
7304 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7305 cmd->ulpCommand == CMD_ABORT_XRI_CN)
7308 if (piocb->vport != vport)
7311 list_del_init(&piocb->list);
7312 list_add_tail(&piocb->list, &abort_list);
7314 if (phba->sli_rev == LPFC_SLI_REV4)
7315 spin_unlock(&pring->ring_lock);
7316 spin_unlock_irq(&phba->hbalock);
7318 /* Cancell all the IOCBs from the completions list */
7319 lpfc_sli_cancel_iocbs(phba, &abort_list,
7320 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
7326 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7327 * @phba: pointer to lpfc hba data structure.
7329 * This routine is used to clean up all the outstanding ELS commands on a
7330 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7331 * routine. After that, it walks the ELS transmit queue to remove all the
7332 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7333 * the IOCBs with the completion callback function associated, the callback
7334 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7335 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7336 * callback function associated, the IOCB will simply be released. Finally,
7337 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7338 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7339 * management plane IOCBs that are not part of the discovery state machine)
7340 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7343 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
7345 struct lpfc_vport *vport;
7346 list_for_each_entry(vport, &phba->port_list, listentry)
7347 lpfc_els_flush_cmd(vport);
7353 * lpfc_send_els_failure_event - Posts an ELS command failure event
7354 * @phba: Pointer to hba context object.
7355 * @cmdiocbp: Pointer to command iocb which reported error.
7356 * @rspiocbp: Pointer to response iocb which reported error.
7358 * This function sends an event when there is an ELS command
7362 lpfc_send_els_failure_event(struct lpfc_hba *phba,
7363 struct lpfc_iocbq *cmdiocbp,
7364 struct lpfc_iocbq *rspiocbp)
7366 struct lpfc_vport *vport = cmdiocbp->vport;
7367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7368 struct lpfc_lsrjt_event lsrjt_event;
7369 struct lpfc_fabric_event_header fabric_event;
7371 struct lpfc_nodelist *ndlp;
7374 ndlp = cmdiocbp->context1;
7375 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
7378 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
7379 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
7380 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
7381 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
7382 sizeof(struct lpfc_name));
7383 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
7384 sizeof(struct lpfc_name));
7385 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7386 cmdiocbp->context2)->virt);
7387 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
7388 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
7389 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
7390 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
7391 fc_host_post_vendor_event(shost,
7392 fc_get_event_number(),
7393 sizeof(lsrjt_event),
7394 (char *)&lsrjt_event,
7398 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
7399 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
7400 fabric_event.event_type = FC_REG_FABRIC_EVENT;
7401 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
7402 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
7404 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
7405 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
7406 sizeof(struct lpfc_name));
7407 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
7408 sizeof(struct lpfc_name));
7409 fc_host_post_vendor_event(shost,
7410 fc_get_event_number(),
7411 sizeof(fabric_event),
7412 (char *)&fabric_event,
7420 * lpfc_send_els_event - Posts unsolicited els event
7421 * @vport: Pointer to vport object.
7422 * @ndlp: Pointer FC node object.
7423 * @cmd: ELS command code.
7425 * This function posts an event when there is an incoming
7426 * unsolicited ELS command.
7429 lpfc_send_els_event(struct lpfc_vport *vport,
7430 struct lpfc_nodelist *ndlp,
7433 struct lpfc_els_event_header *els_data = NULL;
7434 struct lpfc_logo_event *logo_data = NULL;
7435 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7437 if (*payload == ELS_CMD_LOGO) {
7438 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
7440 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7441 "0148 Failed to allocate memory "
7442 "for LOGO event\n");
7445 els_data = &logo_data->header;
7447 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
7450 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7451 "0149 Failed to allocate memory "
7456 els_data->event_type = FC_REG_ELS_EVENT;
7459 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
7462 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
7465 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
7468 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
7469 /* Copy the WWPN in the LOGO payload */
7470 memcpy(logo_data->logo_wwpn, &payload[2],
7471 sizeof(struct lpfc_name));
7477 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
7478 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
7479 if (*payload == ELS_CMD_LOGO) {
7480 fc_host_post_vendor_event(shost,
7481 fc_get_event_number(),
7482 sizeof(struct lpfc_logo_event),
7487 fc_host_post_vendor_event(shost,
7488 fc_get_event_number(),
7489 sizeof(struct lpfc_els_event_header),
7500 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7501 * @phba: pointer to lpfc hba data structure.
7502 * @pring: pointer to a SLI ring.
7503 * @vport: pointer to a host virtual N_Port data structure.
7504 * @elsiocb: pointer to lpfc els command iocb data structure.
7506 * This routine is used for processing the IOCB associated with a unsolicited
7507 * event. It first determines whether there is an existing ndlp that matches
7508 * the DID from the unsolicited IOCB. If not, it will create a new one with
7509 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7510 * IOCB is then used to invoke the proper routine and to set up proper state
7511 * of the discovery state machine.
7514 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7515 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
7517 struct Scsi_Host *shost;
7518 struct lpfc_nodelist *ndlp;
7521 uint32_t cmd, did, newnode;
7522 uint8_t rjt_exp, rjt_err = 0;
7523 IOCB_t *icmd = &elsiocb->iocb;
7525 if (!vport || !(elsiocb->context2))
7529 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
7531 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
7532 lpfc_post_buffer(phba, pring, 1);
7534 did = icmd->un.rcvels.remoteID;
7535 if (icmd->ulpStatus) {
7536 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7537 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7538 icmd->ulpStatus, icmd->un.ulpWord[4], did);
7542 /* Check to see if link went down during discovery */
7543 if (lpfc_els_chk_latt(vport))
7546 /* Ignore traffic received during vport shutdown. */
7547 if (vport->load_flag & FC_UNLOADING)
7550 /* If NPort discovery is delayed drop incoming ELS */
7551 if ((vport->fc_flag & FC_DISC_DELAYED) &&
7552 (cmd != ELS_CMD_PLOGI))
7555 ndlp = lpfc_findnode_did(vport, did);
7557 /* Cannot find existing Fabric ndlp, so allocate a new one */
7558 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7562 lpfc_nlp_init(vport, ndlp, did);
7563 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7565 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7566 ndlp->nlp_type |= NLP_FABRIC;
7567 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7568 ndlp = lpfc_enable_node(vport, ndlp,
7569 NLP_STE_UNUSED_NODE);
7572 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7574 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7575 ndlp->nlp_type |= NLP_FABRIC;
7576 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
7577 /* This is similar to the new node path */
7578 ndlp = lpfc_nlp_get(ndlp);
7581 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7585 phba->fc_stat.elsRcvFrame++;
7588 * Do not process any unsolicited ELS commands
7589 * if the ndlp is in DEV_LOSS
7591 shost = lpfc_shost_from_vport(vport);
7592 spin_lock_irq(shost->host_lock);
7593 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
7594 spin_unlock_irq(shost->host_lock);
7597 spin_unlock_irq(shost->host_lock);
7599 elsiocb->context1 = lpfc_nlp_get(ndlp);
7600 elsiocb->vport = vport;
7602 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
7603 cmd &= ELS_CMD_MASK;
7605 /* ELS command <elsCmd> received from NPORT <did> */
7606 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7607 "0112 ELS command x%x received from NPORT x%x "
7608 "Data: x%x x%x x%x x%x\n",
7609 cmd, did, vport->port_state, vport->fc_flag,
7610 vport->fc_myDID, vport->fc_prevDID);
7612 /* reject till our FLOGI completes */
7613 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
7614 (cmd != ELS_CMD_FLOGI)) {
7615 rjt_err = LSRJT_LOGICAL_BSY;
7616 rjt_exp = LSEXP_NOTHING_MORE;
7622 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7623 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7624 did, vport->port_state, ndlp->nlp_flag);
7626 phba->fc_stat.elsRcvPLOGI++;
7627 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
7628 if (phba->sli_rev == LPFC_SLI_REV4 &&
7629 (phba->pport->fc_flag & FC_PT2PT)) {
7630 vport->fc_prevDID = vport->fc_myDID;
7631 /* Our DID needs to be updated before registering
7632 * the vfi. This is done in lpfc_rcv_plogi but
7633 * that is called after the reg_vfi.
7635 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
7636 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7637 "3312 Remote port assigned DID x%x "
7638 "%x\n", vport->fc_myDID,
7642 lpfc_send_els_event(vport, ndlp, payload);
7644 /* If Nport discovery is delayed, reject PLOGIs */
7645 if (vport->fc_flag & FC_DISC_DELAYED) {
7646 rjt_err = LSRJT_UNABLE_TPC;
7647 rjt_exp = LSEXP_NOTHING_MORE;
7651 if (vport->port_state < LPFC_DISC_AUTH) {
7652 if (!(phba->pport->fc_flag & FC_PT2PT) ||
7653 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
7654 rjt_err = LSRJT_UNABLE_TPC;
7655 rjt_exp = LSEXP_NOTHING_MORE;
7660 spin_lock_irq(shost->host_lock);
7661 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
7662 spin_unlock_irq(shost->host_lock);
7664 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7669 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7670 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7671 did, vport->port_state, ndlp->nlp_flag);
7673 phba->fc_stat.elsRcvFLOGI++;
7674 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
7679 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7680 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7681 did, vport->port_state, ndlp->nlp_flag);
7683 phba->fc_stat.elsRcvLOGO++;
7684 lpfc_send_els_event(vport, ndlp, payload);
7685 if (vport->port_state < LPFC_DISC_AUTH) {
7686 rjt_err = LSRJT_UNABLE_TPC;
7687 rjt_exp = LSEXP_NOTHING_MORE;
7690 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
7693 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7694 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7695 did, vport->port_state, ndlp->nlp_flag);
7697 phba->fc_stat.elsRcvPRLO++;
7698 lpfc_send_els_event(vport, ndlp, payload);
7699 if (vport->port_state < LPFC_DISC_AUTH) {
7700 rjt_err = LSRJT_UNABLE_TPC;
7701 rjt_exp = LSEXP_NOTHING_MORE;
7704 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
7707 phba->fc_stat.elsRcvLCB++;
7708 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
7711 phba->fc_stat.elsRcvRDP++;
7712 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
7715 phba->fc_stat.elsRcvRSCN++;
7716 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
7721 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7722 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7723 did, vport->port_state, ndlp->nlp_flag);
7725 lpfc_send_els_event(vport, ndlp, payload);
7726 phba->fc_stat.elsRcvADISC++;
7727 if (vport->port_state < LPFC_DISC_AUTH) {
7728 rjt_err = LSRJT_UNABLE_TPC;
7729 rjt_exp = LSEXP_NOTHING_MORE;
7732 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7736 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7737 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7738 did, vport->port_state, ndlp->nlp_flag);
7740 phba->fc_stat.elsRcvPDISC++;
7741 if (vport->port_state < LPFC_DISC_AUTH) {
7742 rjt_err = LSRJT_UNABLE_TPC;
7743 rjt_exp = LSEXP_NOTHING_MORE;
7746 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7750 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7751 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7752 did, vport->port_state, ndlp->nlp_flag);
7754 phba->fc_stat.elsRcvFARPR++;
7755 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
7758 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7759 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7760 did, vport->port_state, ndlp->nlp_flag);
7762 phba->fc_stat.elsRcvFARP++;
7763 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
7766 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7767 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7768 did, vport->port_state, ndlp->nlp_flag);
7770 phba->fc_stat.elsRcvFAN++;
7771 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
7774 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7775 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7776 did, vport->port_state, ndlp->nlp_flag);
7778 phba->fc_stat.elsRcvPRLI++;
7779 if (vport->port_state < LPFC_DISC_AUTH) {
7780 rjt_err = LSRJT_UNABLE_TPC;
7781 rjt_exp = LSEXP_NOTHING_MORE;
7784 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
7787 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7788 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7789 did, vport->port_state, ndlp->nlp_flag);
7791 phba->fc_stat.elsRcvLIRR++;
7792 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
7797 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7798 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7799 did, vport->port_state, ndlp->nlp_flag);
7801 phba->fc_stat.elsRcvRLS++;
7802 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
7807 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7808 "RCV RPS: did:x%x/ste:x%x flg:x%x",
7809 did, vport->port_state, ndlp->nlp_flag);
7811 phba->fc_stat.elsRcvRPS++;
7812 lpfc_els_rcv_rps(vport, elsiocb, ndlp);
7817 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7818 "RCV RPL: did:x%x/ste:x%x flg:x%x",
7819 did, vport->port_state, ndlp->nlp_flag);
7821 phba->fc_stat.elsRcvRPL++;
7822 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
7827 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7828 "RCV RNID: did:x%x/ste:x%x flg:x%x",
7829 did, vport->port_state, ndlp->nlp_flag);
7831 phba->fc_stat.elsRcvRNID++;
7832 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
7837 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7838 "RCV RTV: did:x%x/ste:x%x flg:x%x",
7839 did, vport->port_state, ndlp->nlp_flag);
7840 phba->fc_stat.elsRcvRTV++;
7841 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
7846 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7847 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
7848 did, vport->port_state, ndlp->nlp_flag);
7850 phba->fc_stat.elsRcvRRQ++;
7851 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
7856 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7857 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
7858 did, vport->port_state, ndlp->nlp_flag);
7860 phba->fc_stat.elsRcvECHO++;
7861 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
7866 /* receive this due to exchange closed */
7867 rjt_err = LSRJT_UNABLE_TPC;
7868 rjt_exp = LSEXP_INVALID_OX_RX;
7871 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7872 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
7873 cmd, did, vport->port_state);
7875 /* Unsupported ELS command, reject */
7876 rjt_err = LSRJT_CMD_UNSUPPORTED;
7877 rjt_exp = LSEXP_NOTHING_MORE;
7879 /* Unknown ELS command <elsCmd> received from NPORT <did> */
7880 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7881 "0115 Unknown ELS command x%x "
7882 "received from NPORT x%x\n", cmd, did);
7889 /* check if need to LS_RJT received ELS cmd */
7891 memset(&stat, 0, sizeof(stat));
7892 stat.un.b.lsRjtRsnCode = rjt_err;
7893 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
7894 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
7898 lpfc_nlp_put(elsiocb->context1);
7899 elsiocb->context1 = NULL;
7903 if (vport && !(vport->load_flag & FC_UNLOADING))
7904 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7905 "0111 Dropping received ELS cmd "
7906 "Data: x%x x%x x%x\n",
7907 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
7908 phba->fc_stat.elsRcvDrop++;
7912 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7913 * @phba: pointer to lpfc hba data structure.
7914 * @pring: pointer to a SLI ring.
7915 * @elsiocb: pointer to lpfc els iocb data structure.
7917 * This routine is used to process an unsolicited event received from a SLI
7918 * (Service Level Interface) ring. The actual processing of the data buffer
7919 * associated with the unsolicited event is done by invoking the routine
7920 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7921 * SLI ring on which the unsolicited event was received.
7924 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7925 struct lpfc_iocbq *elsiocb)
7927 struct lpfc_vport *vport = phba->pport;
7928 IOCB_t *icmd = &elsiocb->iocb;
7930 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
7931 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
7933 elsiocb->context1 = NULL;
7934 elsiocb->context2 = NULL;
7935 elsiocb->context3 = NULL;
7937 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
7938 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
7939 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
7940 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
7941 IOERR_RCV_BUFFER_WAITING) {
7942 phba->fc_stat.NoRcvBuf++;
7943 /* Not enough posted buffers; Try posting more buffers */
7944 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
7945 lpfc_post_buffer(phba, pring, 0);
7949 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
7950 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
7951 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
7952 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
7953 vport = phba->pport;
7955 vport = lpfc_find_vport_by_vpid(phba,
7956 icmd->unsli3.rcvsli3.vpi);
7959 /* If there are no BDEs associated
7960 * with this IOCB, there is nothing to do.
7962 if (icmd->ulpBdeCount == 0)
7965 /* type of ELS cmd is first 32bit word
7968 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
7969 elsiocb->context2 = bdeBuf1;
7971 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
7972 icmd->un.cont64[0].addrLow);
7973 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
7977 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7979 * The different unsolicited event handlers would tell us
7980 * if they are done with "mp" by setting context2 to NULL.
7982 if (elsiocb->context2) {
7983 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
7984 elsiocb->context2 = NULL;
7987 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7988 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
7989 icmd->ulpBdeCount == 2) {
7990 elsiocb->context2 = bdeBuf2;
7991 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7992 /* free mp if we are done with it */
7993 if (elsiocb->context2) {
7994 lpfc_in_buf_free(phba, elsiocb->context2);
7995 elsiocb->context2 = NULL;
8001 lpfc_start_fdmi(struct lpfc_vport *vport)
8003 struct lpfc_hba *phba = vport->phba;
8004 struct lpfc_nodelist *ndlp;
8006 /* If this is the first time, allocate an ndlp and initialize
8007 * it. Otherwise, make sure the node is enabled and then do the
8010 ndlp = lpfc_findnode_did(vport, FDMI_DID);
8012 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
8014 lpfc_nlp_init(vport, ndlp, FDMI_DID);
8015 ndlp->nlp_type |= NLP_FABRIC;
8020 if (!NLP_CHK_NODE_ACT(ndlp))
8021 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
8024 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8025 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
8030 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
8031 * @phba: pointer to lpfc hba data structure.
8032 * @vport: pointer to a virtual N_Port data structure.
8034 * This routine issues a Port Login (PLOGI) to the Name Server with
8035 * State Change Request (SCR) for a @vport. This routine will create an
8036 * ndlp for the Name Server associated to the @vport if such node does
8037 * not already exist. The PLOGI to Name Server is issued by invoking the
8038 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
8039 * (FDMI) is configured to the @vport, a FDMI node will be created and
8040 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
8043 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
8045 struct lpfc_nodelist *ndlp;
8046 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8049 * If lpfc_delay_discovery parameter is set and the clean address
8050 * bit is cleared and fc fabric parameters chenged, delay FC NPort
8053 spin_lock_irq(shost->host_lock);
8054 if (vport->fc_flag & FC_DISC_DELAYED) {
8055 spin_unlock_irq(shost->host_lock);
8056 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
8057 "3334 Delay fc port discovery for %d seconds\n",
8059 mod_timer(&vport->delayed_disc_tmo,
8060 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
8063 spin_unlock_irq(shost->host_lock);
8065 ndlp = lpfc_findnode_did(vport, NameServer_DID);
8067 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
8069 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8070 lpfc_disc_start(vport);
8073 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8074 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8075 "0251 NameServer login: no memory\n");
8078 lpfc_nlp_init(vport, ndlp, NameServer_DID);
8079 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
8080 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
8082 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8083 lpfc_disc_start(vport);
8086 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8087 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8088 "0348 NameServer login: node freed\n");
8092 ndlp->nlp_type |= NLP_FABRIC;
8094 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8096 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
8097 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8098 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8099 "0252 Cannot issue NameServer login\n");
8103 if ((phba->cfg_enable_SmartSAN ||
8104 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
8105 (vport->load_flag & FC_ALLOW_FDMI))
8106 lpfc_start_fdmi(vport);
8110 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
8111 * @phba: pointer to lpfc hba data structure.
8112 * @pmb: pointer to the driver internal queue element for mailbox command.
8114 * This routine is the completion callback function to register new vport
8115 * mailbox command. If the new vport mailbox command completes successfully,
8116 * the fabric registration login shall be performed on physical port (the
8117 * new vport created is actually a physical port, with VPI 0) or the port
8118 * login to Name Server for State Change Request (SCR) will be performed
8119 * on virtual port (real virtual port, with VPI greater than 0).
8122 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
8124 struct lpfc_vport *vport = pmb->vport;
8125 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8126 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
8127 MAILBOX_t *mb = &pmb->u.mb;
8130 spin_lock_irq(shost->host_lock);
8131 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8132 spin_unlock_irq(shost->host_lock);
8134 if (mb->mbxStatus) {
8135 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8136 "0915 Register VPI failed : Status: x%x"
8137 " upd bit: x%x \n", mb->mbxStatus,
8138 mb->un.varRegVpi.upd);
8139 if (phba->sli_rev == LPFC_SLI_REV4 &&
8140 mb->un.varRegVpi.upd)
8141 goto mbox_err_exit ;
8143 switch (mb->mbxStatus) {
8144 case 0x11: /* unsupported feature */
8145 case 0x9603: /* max_vpi exceeded */
8146 case 0x9602: /* Link event since CLEAR_LA */
8147 /* giving up on vport registration */
8148 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8149 spin_lock_irq(shost->host_lock);
8150 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
8151 spin_unlock_irq(shost->host_lock);
8152 lpfc_can_disctmo(vport);
8154 /* If reg_vpi fail with invalid VPI status, re-init VPI */
8156 spin_lock_irq(shost->host_lock);
8157 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8158 spin_unlock_irq(shost->host_lock);
8159 lpfc_init_vpi(phba, pmb, vport->vpi);
8161 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
8162 rc = lpfc_sli_issue_mbox(phba, pmb,
8164 if (rc == MBX_NOT_FINISHED) {
8165 lpfc_printf_vlog(vport,
8167 "2732 Failed to issue INIT_VPI"
8168 " mailbox command\n");
8175 /* Try to recover from this error */
8176 if (phba->sli_rev == LPFC_SLI_REV4)
8177 lpfc_sli4_unreg_all_rpis(vport);
8178 lpfc_mbx_unreg_vpi(vport);
8179 spin_lock_irq(shost->host_lock);
8180 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8181 spin_unlock_irq(shost->host_lock);
8182 if (vport->port_type == LPFC_PHYSICAL_PORT
8183 && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
8184 lpfc_issue_init_vfi(vport);
8186 lpfc_initial_fdisc(vport);
8190 spin_lock_irq(shost->host_lock);
8191 vport->vpi_state |= LPFC_VPI_REGISTERED;
8192 spin_unlock_irq(shost->host_lock);
8193 if (vport == phba->pport) {
8194 if (phba->sli_rev < LPFC_SLI_REV4)
8195 lpfc_issue_fabric_reglogin(vport);
8198 * If the physical port is instantiated using
8199 * FDISC, do not start vport discovery.
8201 if (vport->port_state != LPFC_FDISC)
8202 lpfc_start_fdiscs(phba);
8203 lpfc_do_scr_ns_plogi(phba, vport);
8206 lpfc_do_scr_ns_plogi(phba, vport);
8209 /* Now, we decrement the ndlp reference count held for this
8214 mempool_free(pmb, phba->mbox_mem_pool);
8219 * lpfc_register_new_vport - Register a new vport with a HBA
8220 * @phba: pointer to lpfc hba data structure.
8221 * @vport: pointer to a host virtual N_Port data structure.
8222 * @ndlp: pointer to a node-list data structure.
8224 * This routine registers the @vport as a new virtual port with a HBA.
8225 * It is done through a registering vpi mailbox command.
8228 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
8229 struct lpfc_nodelist *ndlp)
8231 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8234 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8236 lpfc_reg_vpi(vport, mbox);
8237 mbox->vport = vport;
8238 mbox->context2 = lpfc_nlp_get(ndlp);
8239 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
8240 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
8241 == MBX_NOT_FINISHED) {
8242 /* mailbox command not success, decrement ndlp
8243 * reference count for this command
8246 mempool_free(mbox, phba->mbox_mem_pool);
8248 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8249 "0253 Register VPI: Can't send mbox\n");
8253 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8254 "0254 Register VPI: no memory\n");
8260 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8261 spin_lock_irq(shost->host_lock);
8262 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8263 spin_unlock_irq(shost->host_lock);
8268 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
8269 * @phba: pointer to lpfc hba data structure.
8271 * This routine cancels the retry delay timers to all the vports.
8274 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
8276 struct lpfc_vport **vports;
8277 struct lpfc_nodelist *ndlp;
8278 uint32_t link_state;
8281 /* Treat this failure as linkdown for all vports */
8282 link_state = phba->link_state;
8283 lpfc_linkdown(phba);
8284 phba->link_state = link_state;
8286 vports = lpfc_create_vport_work_array(phba);
8289 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8290 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
8292 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
8293 lpfc_els_flush_cmd(vports[i]);
8295 lpfc_destroy_vport_work_array(phba, vports);
8300 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8301 * @phba: pointer to lpfc hba data structure.
8303 * This routine abort all pending discovery commands and
8304 * start a timer to retry FLOGI for the physical port
8308 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
8310 struct lpfc_nodelist *ndlp;
8311 struct Scsi_Host *shost;
8313 /* Cancel the all vports retry delay retry timers */
8314 lpfc_cancel_all_vport_retry_delay_timer(phba);
8316 /* If fabric require FLOGI, then re-instantiate physical login */
8317 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
8321 shost = lpfc_shost_from_vport(phba->pport);
8322 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
8323 spin_lock_irq(shost->host_lock);
8324 ndlp->nlp_flag |= NLP_DELAY_TMO;
8325 spin_unlock_irq(shost->host_lock);
8326 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
8327 phba->pport->port_state = LPFC_FLOGI;
8332 * lpfc_fabric_login_reqd - Check if FLOGI required.
8333 * @phba: pointer to lpfc hba data structure.
8334 * @cmdiocb: pointer to FDISC command iocb.
8335 * @rspiocb: pointer to FDISC response iocb.
8337 * This routine checks if a FLOGI is reguired for FDISC
8341 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
8342 struct lpfc_iocbq *cmdiocb,
8343 struct lpfc_iocbq *rspiocb)
8346 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
8347 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
8354 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8355 * @phba: pointer to lpfc hba data structure.
8356 * @cmdiocb: pointer to lpfc command iocb data structure.
8357 * @rspiocb: pointer to lpfc response iocb data structure.
8359 * This routine is the completion callback function to a Fabric Discover
8360 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8361 * single threaded, each FDISC completion callback function will reset
8362 * the discovery timer for all vports such that the timers will not get
8363 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8364 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8365 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8366 * assigned to the vport has been changed with the completion of the FDISC
8367 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8368 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8369 * routine is invoked to register new vport with the HBA. Otherwise, the
8370 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8371 * Server for State Change Request (SCR).
8374 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8375 struct lpfc_iocbq *rspiocb)
8377 struct lpfc_vport *vport = cmdiocb->vport;
8378 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8379 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
8380 struct lpfc_nodelist *np;
8381 struct lpfc_nodelist *next_np;
8382 IOCB_t *irsp = &rspiocb->iocb;
8383 struct lpfc_iocbq *piocb;
8384 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
8385 struct serv_parm *sp;
8386 uint8_t fabric_param_changed;
8388 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8389 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8390 irsp->ulpStatus, irsp->un.ulpWord[4],
8392 /* Since all FDISCs are being single threaded, we
8393 * must reset the discovery timer for ALL vports
8394 * waiting to send FDISC when one completes.
8396 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
8397 lpfc_set_disctmo(piocb->vport);
8400 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8401 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8402 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
8404 if (irsp->ulpStatus) {
8406 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
8407 lpfc_retry_pport_discovery(phba);
8411 /* Check for retry */
8412 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
8415 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8416 "0126 FDISC failed. (x%x/x%x)\n",
8417 irsp->ulpStatus, irsp->un.ulpWord[4]);
8420 spin_lock_irq(shost->host_lock);
8421 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
8422 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
8423 vport->fc_flag |= FC_FABRIC;
8424 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
8425 vport->fc_flag |= FC_PUBLIC_LOOP;
8426 spin_unlock_irq(shost->host_lock);
8428 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
8429 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
8430 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
8433 sp = prsp->virt + sizeof(uint32_t);
8434 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
8435 memcpy(&vport->fabric_portname, &sp->portName,
8436 sizeof(struct lpfc_name));
8437 memcpy(&vport->fabric_nodename, &sp->nodeName,
8438 sizeof(struct lpfc_name));
8439 if (fabric_param_changed &&
8440 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8441 /* If our NportID changed, we need to ensure all
8442 * remaining NPORTs get unreg_login'ed so we can
8445 list_for_each_entry_safe(np, next_np,
8446 &vport->fc_nodes, nlp_listp) {
8447 if (!NLP_CHK_NODE_ACT(ndlp) ||
8448 (np->nlp_state != NLP_STE_NPR_NODE) ||
8449 !(np->nlp_flag & NLP_NPR_ADISC))
8451 spin_lock_irq(shost->host_lock);
8452 np->nlp_flag &= ~NLP_NPR_ADISC;
8453 spin_unlock_irq(shost->host_lock);
8454 lpfc_unreg_rpi(vport, np);
8456 lpfc_cleanup_pending_mbox(vport);
8458 if (phba->sli_rev == LPFC_SLI_REV4)
8459 lpfc_sli4_unreg_all_rpis(vport);
8461 lpfc_mbx_unreg_vpi(vport);
8462 spin_lock_irq(shost->host_lock);
8463 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8464 if (phba->sli_rev == LPFC_SLI_REV4)
8465 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
8467 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
8468 spin_unlock_irq(shost->host_lock);
8469 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
8470 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8472 * Driver needs to re-reg VPI in order for f/w
8473 * to update the MAC address.
8475 lpfc_register_new_vport(phba, vport, ndlp);
8479 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
8480 lpfc_issue_init_vpi(vport);
8481 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
8482 lpfc_register_new_vport(phba, vport, ndlp);
8484 lpfc_do_scr_ns_plogi(phba, vport);
8487 if (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)
8488 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8489 /* Cancel discovery timer */
8490 lpfc_can_disctmo(vport);
8493 lpfc_els_free_iocb(phba, cmdiocb);
8497 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8498 * @vport: pointer to a virtual N_Port data structure.
8499 * @ndlp: pointer to a node-list data structure.
8500 * @retry: number of retries to the command IOCB.
8502 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8503 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8504 * routine to issue the IOCB, which makes sure only one outstanding fabric
8505 * IOCB will be sent off HBA at any given time.
8507 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8508 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8509 * will be stored into the context1 field of the IOCB for the completion
8510 * callback function to the FDISC ELS command.
8513 * 0 - Successfully issued fdisc iocb command
8514 * 1 - Failed to issue fdisc iocb command
8517 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
8520 struct lpfc_hba *phba = vport->phba;
8522 struct lpfc_iocbq *elsiocb;
8523 struct serv_parm *sp;
8526 int did = ndlp->nlp_DID;
8529 vport->port_state = LPFC_FDISC;
8530 vport->fc_myDID = 0;
8531 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
8532 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
8535 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8536 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8537 "0255 Issue FDISC: no IOCB\n");
8541 icmd = &elsiocb->iocb;
8542 icmd->un.elsreq64.myID = 0;
8543 icmd->un.elsreq64.fl = 1;
8546 * SLI3 ports require a different context type value than SLI4.
8547 * Catch SLI3 ports here and override the prep.
8549 if (phba->sli_rev == LPFC_SLI_REV3) {
8554 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8555 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
8556 pcmd += sizeof(uint32_t); /* CSP Word 1 */
8557 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
8558 sp = (struct serv_parm *) pcmd;
8559 /* Setup CSPs accordingly for Fabric */
8560 sp->cmn.e_d_tov = 0;
8561 sp->cmn.w2.r_a_tov = 0;
8562 sp->cmn.virtual_fabric_support = 0;
8563 sp->cls1.classValid = 0;
8564 sp->cls2.seqDelivery = 1;
8565 sp->cls3.seqDelivery = 1;
8567 pcmd += sizeof(uint32_t); /* CSP Word 2 */
8568 pcmd += sizeof(uint32_t); /* CSP Word 3 */
8569 pcmd += sizeof(uint32_t); /* CSP Word 4 */
8570 pcmd += sizeof(uint32_t); /* Port Name */
8571 memcpy(pcmd, &vport->fc_portname, 8);
8572 pcmd += sizeof(uint32_t); /* Node Name */
8573 pcmd += sizeof(uint32_t); /* Node Name */
8574 memcpy(pcmd, &vport->fc_nodename, 8);
8576 lpfc_set_disctmo(vport);
8578 phba->fc_stat.elsXmitFDISC++;
8579 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
8581 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8582 "Issue FDISC: did:x%x",
8585 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
8586 if (rc == IOCB_ERROR) {
8587 lpfc_els_free_iocb(phba, elsiocb);
8588 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8589 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8590 "0256 Issue FDISC: Cannot send IOCB\n");
8593 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
8598 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8599 * @phba: pointer to lpfc hba data structure.
8600 * @cmdiocb: pointer to lpfc command iocb data structure.
8601 * @rspiocb: pointer to lpfc response iocb data structure.
8603 * This routine is the completion callback function to the issuing of a LOGO
8604 * ELS command off a vport. It frees the command IOCB and then decrement the
8605 * reference count held on ndlp for this completion function, indicating that
8606 * the reference to the ndlp is no long needed. Note that the
8607 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8608 * callback function and an additional explicit ndlp reference decrementation
8609 * will trigger the actual release of the ndlp.
8612 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8613 struct lpfc_iocbq *rspiocb)
8615 struct lpfc_vport *vport = cmdiocb->vport;
8617 struct lpfc_nodelist *ndlp;
8618 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8620 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
8621 irsp = &rspiocb->iocb;
8622 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8623 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8624 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
8626 lpfc_els_free_iocb(phba, cmdiocb);
8627 vport->unreg_vpi_cmpl = VPORT_ERROR;
8629 /* Trigger the release of the ndlp after logo */
8632 /* NPIV LOGO completes to NPort <nlp_DID> */
8633 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8634 "2928 NPIV LOGO completes to NPort x%x "
8635 "Data: x%x x%x x%x x%x\n",
8636 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
8637 irsp->ulpTimeout, vport->num_disc_nodes);
8639 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
8640 spin_lock_irq(shost->host_lock);
8641 vport->fc_flag &= ~FC_NDISC_ACTIVE;
8642 vport->fc_flag &= ~FC_FABRIC;
8643 spin_unlock_irq(shost->host_lock);
8644 lpfc_can_disctmo(vport);
8649 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8650 * @vport: pointer to a virtual N_Port data structure.
8651 * @ndlp: pointer to a node-list data structure.
8653 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8655 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8656 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8657 * will be stored into the context1 field of the IOCB for the completion
8658 * callback function to the LOGO ELS command.
8661 * 0 - Successfully issued logo off the @vport
8662 * 1 - Failed to issue logo off the @vport
8665 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
8667 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8668 struct lpfc_hba *phba = vport->phba;
8669 struct lpfc_iocbq *elsiocb;
8673 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
8674 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
8679 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8680 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
8681 pcmd += sizeof(uint32_t);
8683 /* Fill in LOGO payload */
8684 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
8685 pcmd += sizeof(uint32_t);
8686 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
8688 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8689 "Issue LOGO npiv did:x%x flg:x%x",
8690 ndlp->nlp_DID, ndlp->nlp_flag, 0);
8692 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
8693 spin_lock_irq(shost->host_lock);
8694 ndlp->nlp_flag |= NLP_LOGO_SND;
8695 spin_unlock_irq(shost->host_lock);
8696 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
8698 spin_lock_irq(shost->host_lock);
8699 ndlp->nlp_flag &= ~NLP_LOGO_SND;
8700 spin_unlock_irq(shost->host_lock);
8701 lpfc_els_free_iocb(phba, elsiocb);
8708 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8709 * @ptr: holder for the timer function associated data.
8711 * This routine is invoked by the fabric iocb block timer after
8712 * timeout. It posts the fabric iocb block timeout event by setting the
8713 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8714 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8715 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8716 * posted event WORKER_FABRIC_BLOCK_TMO.
8719 lpfc_fabric_block_timeout(unsigned long ptr)
8721 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
8722 unsigned long iflags;
8723 uint32_t tmo_posted;
8725 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8726 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
8728 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
8729 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8732 lpfc_worker_wake_up(phba);
8737 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8738 * @phba: pointer to lpfc hba data structure.
8740 * This routine issues one fabric iocb from the driver internal list to
8741 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8742 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8743 * remove one pending fabric iocb from the driver internal list and invokes
8744 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8747 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
8749 struct lpfc_iocbq *iocb;
8750 unsigned long iflags;
8756 spin_lock_irqsave(&phba->hbalock, iflags);
8757 /* Post any pending iocb to the SLI layer */
8758 if (atomic_read(&phba->fabric_iocb_count) == 0) {
8759 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
8762 /* Increment fabric iocb count to hold the position */
8763 atomic_inc(&phba->fabric_iocb_count);
8765 spin_unlock_irqrestore(&phba->hbalock, iflags);
8767 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8768 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8769 iocb->iocb_flag |= LPFC_IO_FABRIC;
8771 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8772 "Fabric sched1: ste:x%x",
8773 iocb->vport->port_state, 0, 0);
8775 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8777 if (ret == IOCB_ERROR) {
8778 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8779 iocb->fabric_iocb_cmpl = NULL;
8780 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8782 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
8783 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
8784 iocb->iocb_cmpl(phba, iocb, iocb);
8786 atomic_dec(&phba->fabric_iocb_count);
8795 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
8796 * @phba: pointer to lpfc hba data structure.
8798 * This routine unblocks the issuing fabric iocb command. The function
8799 * will clear the fabric iocb block bit and then invoke the routine
8800 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
8801 * from the driver internal fabric iocb list.
8804 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
8806 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8808 lpfc_resume_fabric_iocbs(phba);
8813 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
8814 * @phba: pointer to lpfc hba data structure.
8816 * This routine blocks the issuing fabric iocb for a specified amount of
8817 * time (currently 100 ms). This is done by set the fabric iocb block bit
8818 * and set up a timeout timer for 100ms. When the block bit is set, no more
8819 * fabric iocb will be issued out of the HBA.
8822 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
8826 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8827 /* Start a timer to unblock fabric iocbs after 100ms */
8829 mod_timer(&phba->fabric_block_timer,
8830 jiffies + msecs_to_jiffies(100));
8836 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
8837 * @phba: pointer to lpfc hba data structure.
8838 * @cmdiocb: pointer to lpfc command iocb data structure.
8839 * @rspiocb: pointer to lpfc response iocb data structure.
8841 * This routine is the callback function that is put to the fabric iocb's
8842 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
8843 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
8844 * function first restores and invokes the original iocb's callback function
8845 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
8846 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
8849 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8850 struct lpfc_iocbq *rspiocb)
8854 if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC)
8857 switch (rspiocb->iocb.ulpStatus) {
8858 case IOSTAT_NPORT_RJT:
8859 case IOSTAT_FABRIC_RJT:
8860 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
8861 lpfc_block_fabric_iocbs(phba);
8865 case IOSTAT_NPORT_BSY:
8866 case IOSTAT_FABRIC_BSY:
8867 lpfc_block_fabric_iocbs(phba);
8871 stat.un.lsRjtError =
8872 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
8873 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
8874 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
8875 lpfc_block_fabric_iocbs(phba);
8879 if (atomic_read(&phba->fabric_iocb_count) == 0)
8882 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
8883 cmdiocb->fabric_iocb_cmpl = NULL;
8884 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
8885 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
8887 atomic_dec(&phba->fabric_iocb_count);
8888 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
8889 /* Post any pending iocbs to HBA */
8890 lpfc_resume_fabric_iocbs(phba);
8895 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
8896 * @phba: pointer to lpfc hba data structure.
8897 * @iocb: pointer to lpfc command iocb data structure.
8899 * This routine is used as the top-level API for issuing a fabric iocb command
8900 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
8901 * function makes sure that only one fabric bound iocb will be outstanding at
8902 * any given time. As such, this function will first check to see whether there
8903 * is already an outstanding fabric iocb on the wire. If so, it will put the
8904 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8905 * issued later. Otherwise, it will issue the iocb on the wire and update the
8906 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8908 * Note, this implementation has a potential sending out fabric IOCBs out of
8909 * order. The problem is caused by the construction of the "ready" boolen does
8910 * not include the condition that the internal fabric IOCB list is empty. As
8911 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8912 * ahead of the fabric IOCBs in the internal list.
8915 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8916 * IOCB_ERROR - failed to issue fabric iocb
8919 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
8921 unsigned long iflags;
8925 if (atomic_read(&phba->fabric_iocb_count) > 1)
8928 spin_lock_irqsave(&phba->hbalock, iflags);
8929 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
8930 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8933 /* Increment fabric iocb count to hold the position */
8934 atomic_inc(&phba->fabric_iocb_count);
8935 spin_unlock_irqrestore(&phba->hbalock, iflags);
8937 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8938 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8939 iocb->iocb_flag |= LPFC_IO_FABRIC;
8941 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8942 "Fabric sched2: ste:x%x",
8943 iocb->vport->port_state, 0, 0);
8945 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8947 if (ret == IOCB_ERROR) {
8948 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8949 iocb->fabric_iocb_cmpl = NULL;
8950 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8951 atomic_dec(&phba->fabric_iocb_count);
8954 spin_lock_irqsave(&phba->hbalock, iflags);
8955 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
8956 spin_unlock_irqrestore(&phba->hbalock, iflags);
8963 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8964 * @vport: pointer to a virtual N_Port data structure.
8966 * This routine aborts all the IOCBs associated with a @vport from the
8967 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8968 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8969 * list, removes each IOCB associated with the @vport off the list, set the
8970 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8971 * associated with the IOCB.
8973 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
8975 LIST_HEAD(completions);
8976 struct lpfc_hba *phba = vport->phba;
8977 struct lpfc_iocbq *tmp_iocb, *piocb;
8979 spin_lock_irq(&phba->hbalock);
8980 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
8983 if (piocb->vport != vport)
8986 list_move_tail(&piocb->list, &completions);
8988 spin_unlock_irq(&phba->hbalock);
8990 /* Cancel all the IOCBs from the completions list */
8991 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8996 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
8997 * @ndlp: pointer to a node-list data structure.
8999 * This routine aborts all the IOCBs associated with an @ndlp from the
9000 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
9001 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9002 * list, removes each IOCB associated with the @ndlp off the list, set the
9003 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9004 * associated with the IOCB.
9006 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
9008 LIST_HEAD(completions);
9009 struct lpfc_hba *phba = ndlp->phba;
9010 struct lpfc_iocbq *tmp_iocb, *piocb;
9011 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9013 spin_lock_irq(&phba->hbalock);
9014 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
9016 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
9018 list_move_tail(&piocb->list, &completions);
9021 spin_unlock_irq(&phba->hbalock);
9023 /* Cancel all the IOCBs from the completions list */
9024 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9029 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
9030 * @phba: pointer to lpfc hba data structure.
9032 * This routine aborts all the IOCBs currently on the driver internal
9033 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
9034 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
9035 * list, removes IOCBs off the list, set the status feild to
9036 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
9039 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
9041 LIST_HEAD(completions);
9043 spin_lock_irq(&phba->hbalock);
9044 list_splice_init(&phba->fabric_iocb_list, &completions);
9045 spin_unlock_irq(&phba->hbalock);
9047 /* Cancel all the IOCBs from the completions list */
9048 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9053 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
9054 * @vport: pointer to lpfc vport data structure.
9056 * This routine is invoked by the vport cleanup for deletions and the cleanup
9057 * for an ndlp on removal.
9060 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
9062 struct lpfc_hba *phba = vport->phba;
9063 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9064 unsigned long iflag = 0;
9066 spin_lock_irqsave(&phba->hbalock, iflag);
9067 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
9068 list_for_each_entry_safe(sglq_entry, sglq_next,
9069 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9070 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
9071 sglq_entry->ndlp = NULL;
9073 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
9074 spin_unlock_irqrestore(&phba->hbalock, iflag);
9079 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
9080 * @phba: pointer to lpfc hba data structure.
9081 * @axri: pointer to the els xri abort wcqe structure.
9083 * This routine is invoked by the worker thread to process a SLI4 slow-path
9087 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
9088 struct sli4_wcqe_xri_aborted *axri)
9090 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
9091 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
9094 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9095 unsigned long iflag = 0;
9096 struct lpfc_nodelist *ndlp;
9097 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9099 spin_lock_irqsave(&phba->hbalock, iflag);
9100 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
9101 list_for_each_entry_safe(sglq_entry, sglq_next,
9102 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9103 if (sglq_entry->sli4_xritag == xri) {
9104 list_del(&sglq_entry->list);
9105 ndlp = sglq_entry->ndlp;
9106 sglq_entry->ndlp = NULL;
9107 spin_lock(&pring->ring_lock);
9108 list_add_tail(&sglq_entry->list,
9109 &phba->sli4_hba.lpfc_sgl_list);
9110 sglq_entry->state = SGL_FREED;
9111 spin_unlock(&pring->ring_lock);
9112 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
9113 spin_unlock_irqrestore(&phba->hbalock, iflag);
9114 lpfc_set_rrq_active(phba, ndlp,
9115 sglq_entry->sli4_lxritag,
9118 /* Check if TXQ queue needs to be serviced */
9119 if (!(list_empty(&pring->txq)))
9120 lpfc_worker_wake_up(phba);
9124 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
9125 lxri = lpfc_sli4_xri_inrange(phba, xri);
9126 if (lxri == NO_XRI) {
9127 spin_unlock_irqrestore(&phba->hbalock, iflag);
9130 spin_lock(&pring->ring_lock);
9131 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
9132 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
9133 spin_unlock(&pring->ring_lock);
9134 spin_unlock_irqrestore(&phba->hbalock, iflag);
9137 sglq_entry->state = SGL_XRI_ABORTED;
9138 spin_unlock(&pring->ring_lock);
9139 spin_unlock_irqrestore(&phba->hbalock, iflag);
9143 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
9144 * @vport: pointer to virtual port object.
9145 * @ndlp: nodelist pointer for the impacted node.
9147 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
9148 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
9149 * the driver is required to send a LOGO to the remote node before it
9150 * attempts to recover its login to the remote node.
9153 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
9154 struct lpfc_nodelist *ndlp)
9156 struct Scsi_Host *shost;
9157 struct lpfc_hba *phba;
9158 unsigned long flags = 0;
9160 shost = lpfc_shost_from_vport(vport);
9162 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
9163 lpfc_printf_log(phba, KERN_INFO,
9164 LOG_SLI, "3093 No rport recovery needed. "
9165 "rport in state 0x%x\n", ndlp->nlp_state);
9168 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9169 "3094 Start rport recovery on shost id 0x%x "
9170 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
9172 shost->host_no, ndlp->nlp_DID,
9173 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
9176 * The rport is not responding. Remove the FCP-2 flag to prevent
9177 * an ADISC in the follow-up recovery code.
9179 spin_lock_irqsave(shost->host_lock, flags);
9180 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
9181 spin_unlock_irqrestore(shost->host_lock, flags);
9182 lpfc_issue_els_logo(vport, ndlp, 0);
9183 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);