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);
3596 if (elsiocb->context3) {
3597 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
3598 lpfc_els_free_bpl(phba, buf_ptr);
3600 lpfc_sli_release_iocbq(phba, elsiocb);
3605 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3606 * @phba: pointer to lpfc hba data structure.
3607 * @cmdiocb: pointer to lpfc command iocb data structure.
3608 * @rspiocb: pointer to lpfc response iocb data structure.
3610 * This routine is the completion callback function to the Logout (LOGO)
3611 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3612 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3613 * release the ndlp if it has the last reference remaining (reference count
3614 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3615 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3616 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3617 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3618 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3619 * IOCB data structure.
3622 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3623 struct lpfc_iocbq *rspiocb)
3625 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3626 struct lpfc_vport *vport = cmdiocb->vport;
3629 irsp = &rspiocb->iocb;
3630 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3631 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3632 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
3633 /* ACC to LOGO completes to NPort <nlp_DID> */
3634 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3635 "0109 ACC to LOGO completes to NPort x%x "
3636 "Data: x%x x%x x%x\n",
3637 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3640 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
3641 /* NPort Recovery mode or node is just allocated */
3642 if (!lpfc_nlp_not_used(ndlp)) {
3643 /* If the ndlp is being used by another discovery
3644 * thread, just unregister the RPI.
3646 lpfc_unreg_rpi(vport, ndlp);
3648 /* Indicate the node has already released, should
3649 * not reference to it from within lpfc_els_free_iocb.
3651 cmdiocb->context1 = NULL;
3656 * The driver received a LOGO from the rport and has ACK'd it.
3657 * At this point, the driver is done so release the IOCB
3659 lpfc_els_free_iocb(phba, cmdiocb);
3663 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3664 * @phba: pointer to lpfc hba data structure.
3665 * @pmb: pointer to the driver internal queue element for mailbox command.
3667 * This routine is the completion callback function for unregister default
3668 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3669 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3670 * decrements the ndlp reference count held for this completion callback
3671 * function. After that, it invokes the lpfc_nlp_not_used() to check
3672 * whether there is only one reference left on the ndlp. If so, it will
3673 * perform one more decrement and trigger the release of the ndlp.
3676 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3678 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3679 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3681 pmb->context1 = NULL;
3682 pmb->context2 = NULL;
3684 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3686 mempool_free(pmb, phba->mbox_mem_pool);
3688 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3689 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3690 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3691 atomic_read(&ndlp->kref.refcount),
3692 ndlp->nlp_usg_map, ndlp);
3693 if (NLP_CHK_NODE_ACT(ndlp)) {
3695 /* This is the end of the default RPI cleanup logic for
3696 * this ndlp. If no other discovery threads are using
3697 * this ndlp, free all resources associated with it.
3699 lpfc_nlp_not_used(ndlp);
3701 lpfc_drop_node(ndlp->vport, ndlp);
3709 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3710 * @phba: pointer to lpfc hba data structure.
3711 * @cmdiocb: pointer to lpfc command iocb data structure.
3712 * @rspiocb: pointer to lpfc response iocb data structure.
3714 * This routine is the completion callback function for ELS Response IOCB
3715 * command. In normal case, this callback function just properly sets the
3716 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3717 * field in the command IOCB is not NULL, the referred mailbox command will
3718 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3719 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3720 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3721 * routine shall be invoked trying to release the ndlp if no other threads
3722 * are currently referring it.
3725 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3726 struct lpfc_iocbq *rspiocb)
3728 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3729 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
3730 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
3733 LPFC_MBOXQ_t *mbox = NULL;
3734 struct lpfc_dmabuf *mp = NULL;
3735 uint32_t ls_rjt = 0;
3737 irsp = &rspiocb->iocb;
3739 if (cmdiocb->context_un.mbox)
3740 mbox = cmdiocb->context_un.mbox;
3742 /* First determine if this is a LS_RJT cmpl. Note, this callback
3743 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3745 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
3746 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3747 (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
3748 /* A LS_RJT associated with Default RPI cleanup has its own
3749 * separate code path.
3751 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3755 /* Check to see if link went down during discovery */
3756 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
3758 mp = (struct lpfc_dmabuf *) mbox->context1;
3760 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3763 mempool_free(mbox, phba->mbox_mem_pool);
3765 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3766 (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3767 if (lpfc_nlp_not_used(ndlp)) {
3769 /* Indicate the node has already released,
3770 * should not reference to it from within
3771 * the routine lpfc_els_free_iocb.
3773 cmdiocb->context1 = NULL;
3778 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3779 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3780 irsp->ulpStatus, irsp->un.ulpWord[4],
3781 cmdiocb->iocb.un.elsreq64.remoteID);
3782 /* ELS response tag <ulpIoTag> completes */
3783 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3784 "0110 ELS response tag x%x completes "
3785 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3786 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
3787 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
3788 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3791 if ((rspiocb->iocb.ulpStatus == 0)
3792 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
3793 lpfc_unreg_rpi(vport, ndlp);
3794 /* Increment reference count to ndlp to hold the
3795 * reference to ndlp for the callback function.
3797 mbox->context2 = lpfc_nlp_get(ndlp);
3798 mbox->vport = vport;
3799 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
3800 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3801 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3804 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
3805 ndlp->nlp_prev_state = ndlp->nlp_state;
3806 lpfc_nlp_set_state(vport, ndlp,
3807 NLP_STE_REG_LOGIN_ISSUE);
3810 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
3811 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
3812 != MBX_NOT_FINISHED)
3815 /* Decrement the ndlp reference count we
3816 * set for this failed mailbox command.
3819 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3821 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3822 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3823 "0138 ELS rsp: Cannot issue reg_login for x%x "
3824 "Data: x%x x%x x%x\n",
3825 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3828 if (lpfc_nlp_not_used(ndlp)) {
3830 /* Indicate node has already been released,
3831 * should not reference to it from within
3832 * the routine lpfc_els_free_iocb.
3834 cmdiocb->context1 = NULL;
3837 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3838 if (!lpfc_error_lost_link(irsp) &&
3839 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
3840 if (lpfc_nlp_not_used(ndlp)) {
3842 /* Indicate node has already been
3843 * released, should not reference
3844 * to it from within the routine
3845 * lpfc_els_free_iocb.
3847 cmdiocb->context1 = NULL;
3851 mp = (struct lpfc_dmabuf *) mbox->context1;
3853 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3856 mempool_free(mbox, phba->mbox_mem_pool);
3859 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3860 spin_lock_irq(shost->host_lock);
3861 ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
3862 spin_unlock_irq(shost->host_lock);
3864 /* If the node is not being used by another discovery thread,
3865 * and we are sending a reject, we are done with it.
3866 * Release driver reference count here and free associated
3870 if (lpfc_nlp_not_used(ndlp))
3871 /* Indicate node has already been released,
3872 * should not reference to it from within
3873 * the routine lpfc_els_free_iocb.
3875 cmdiocb->context1 = NULL;
3879 lpfc_els_free_iocb(phba, cmdiocb);
3884 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3885 * @vport: pointer to a host virtual N_Port data structure.
3886 * @flag: the els command code to be accepted.
3887 * @oldiocb: pointer to the original lpfc command iocb data structure.
3888 * @ndlp: pointer to a node-list data structure.
3889 * @mbox: pointer to the driver internal queue element for mailbox command.
3891 * This routine prepares and issues an Accept (ACC) response IOCB
3892 * command. It uses the @flag to properly set up the IOCB field for the
3893 * specific ACC response command to be issued and invokes the
3894 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3895 * @mbox pointer is passed in, it will be put into the context_un.mbox
3896 * field of the IOCB for the completion callback function to issue the
3897 * mailbox command to the HBA later when callback is invoked.
3899 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3900 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3901 * will be stored into the context1 field of the IOCB for the completion
3902 * callback function to the corresponding response ELS IOCB command.
3905 * 0 - Successfully issued acc response
3906 * 1 - Failed to issue acc response
3909 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
3910 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
3913 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3914 struct lpfc_hba *phba = vport->phba;
3917 struct lpfc_iocbq *elsiocb;
3919 struct serv_parm *sp;
3922 ELS_PKT *els_pkt_ptr;
3924 oldcmd = &oldiocb->iocb;
3928 cmdsize = sizeof(uint32_t);
3929 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3930 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3932 spin_lock_irq(shost->host_lock);
3933 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
3934 spin_unlock_irq(shost->host_lock);
3938 icmd = &elsiocb->iocb;
3939 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3940 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3941 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3942 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3943 pcmd += sizeof(uint32_t);
3945 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3946 "Issue ACC: did:x%x flg:x%x",
3947 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3951 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
3952 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3953 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3957 icmd = &elsiocb->iocb;
3958 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3959 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3960 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3963 elsiocb->context_un.mbox = mbox;
3965 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3966 pcmd += sizeof(uint32_t);
3967 sp = (struct serv_parm *)pcmd;
3969 if (flag == ELS_CMD_FLOGI) {
3970 /* Copy the received service parameters back */
3971 memcpy(sp, &phba->fc_fabparam,
3972 sizeof(struct serv_parm));
3974 /* Clear the F_Port bit */
3977 /* Mark all class service parameters as invalid */
3978 sp->cls1.classValid = 0;
3979 sp->cls2.classValid = 0;
3980 sp->cls3.classValid = 0;
3981 sp->cls4.classValid = 0;
3983 /* Copy our worldwide names */
3984 memcpy(&sp->portName, &vport->fc_sparam.portName,
3985 sizeof(struct lpfc_name));
3986 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
3987 sizeof(struct lpfc_name));
3989 memcpy(pcmd, &vport->fc_sparam,
3990 sizeof(struct serv_parm));
3993 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3994 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
3995 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3998 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
3999 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4000 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
4004 icmd = &elsiocb->iocb;
4005 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4006 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4007 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4009 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
4010 sizeof(uint32_t) + sizeof(PRLO));
4011 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
4012 els_pkt_ptr = (ELS_PKT *) pcmd;
4013 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
4015 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4016 "Issue ACC PRLO: did:x%x flg:x%x",
4017 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4022 /* Xmit ELS ACC response tag <ulpIoTag> */
4023 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4024 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4025 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4027 elsiocb->iotag, elsiocb->iocb.ulpContext,
4028 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4029 ndlp->nlp_rpi, vport->fc_flag);
4030 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
4031 spin_lock_irq(shost->host_lock);
4032 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4033 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
4034 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4035 spin_unlock_irq(shost->host_lock);
4036 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
4038 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4041 phba->fc_stat.elsXmitACC++;
4042 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4043 if (rc == IOCB_ERROR) {
4044 lpfc_els_free_iocb(phba, elsiocb);
4051 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4052 * @vport: pointer to a virtual N_Port data structure.
4054 * @oldiocb: pointer to the original lpfc command iocb data structure.
4055 * @ndlp: pointer to a node-list data structure.
4056 * @mbox: pointer to the driver internal queue element for mailbox command.
4058 * This routine prepares and issue an Reject (RJT) response IOCB
4059 * command. If a @mbox pointer is passed in, it will be put into the
4060 * context_un.mbox field of the IOCB for the completion callback function
4061 * to issue to the HBA later.
4063 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4064 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4065 * will be stored into the context1 field of the IOCB for the completion
4066 * callback function to the reject response ELS IOCB command.
4069 * 0 - Successfully issued reject response
4070 * 1 - Failed to issue reject response
4073 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
4074 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4077 struct lpfc_hba *phba = vport->phba;
4080 struct lpfc_iocbq *elsiocb;
4085 cmdsize = 2 * sizeof(uint32_t);
4086 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4087 ndlp->nlp_DID, ELS_CMD_LS_RJT);
4091 icmd = &elsiocb->iocb;
4092 oldcmd = &oldiocb->iocb;
4093 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4094 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4095 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4097 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4098 pcmd += sizeof(uint32_t);
4099 *((uint32_t *) (pcmd)) = rejectError;
4102 elsiocb->context_un.mbox = mbox;
4104 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4105 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4106 "0129 Xmit ELS RJT x%x response tag x%x "
4107 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4109 rejectError, elsiocb->iotag,
4110 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4111 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
4112 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4113 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4114 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4116 phba->fc_stat.elsXmitLSRJT++;
4117 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4118 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4120 if (rc == IOCB_ERROR) {
4121 lpfc_els_free_iocb(phba, elsiocb);
4128 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4129 * @vport: pointer to a virtual N_Port data structure.
4130 * @oldiocb: pointer to the original lpfc command iocb data structure.
4131 * @ndlp: pointer to a node-list data structure.
4133 * This routine prepares and issues an Accept (ACC) response to Address
4134 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4135 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4137 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4138 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4139 * will be stored into the context1 field of the IOCB for the completion
4140 * callback function to the ADISC Accept response ELS IOCB command.
4143 * 0 - Successfully issued acc adisc response
4144 * 1 - Failed to issue adisc acc response
4147 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4148 struct lpfc_nodelist *ndlp)
4150 struct lpfc_hba *phba = vport->phba;
4152 IOCB_t *icmd, *oldcmd;
4153 struct lpfc_iocbq *elsiocb;
4158 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
4159 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4160 ndlp->nlp_DID, ELS_CMD_ACC);
4164 icmd = &elsiocb->iocb;
4165 oldcmd = &oldiocb->iocb;
4166 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4167 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4169 /* Xmit ADISC ACC response tag <ulpIoTag> */
4170 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4171 "0130 Xmit ADISC ACC response iotag x%x xri: "
4172 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4173 elsiocb->iotag, elsiocb->iocb.ulpContext,
4174 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4176 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4178 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4179 pcmd += sizeof(uint32_t);
4181 ap = (ADISC *) (pcmd);
4182 ap->hardAL_PA = phba->fc_pref_ALPA;
4183 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4184 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4185 ap->DID = be32_to_cpu(vport->fc_myDID);
4187 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4188 "Issue ACC ADISC: did:x%x flg:x%x",
4189 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4191 phba->fc_stat.elsXmitACC++;
4192 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4193 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4194 if (rc == IOCB_ERROR) {
4195 lpfc_els_free_iocb(phba, elsiocb);
4202 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4203 * @vport: pointer to a virtual N_Port data structure.
4204 * @oldiocb: pointer to the original lpfc command iocb data structure.
4205 * @ndlp: pointer to a node-list data structure.
4207 * This routine prepares and issues an Accept (ACC) response to Process
4208 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4209 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4211 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4212 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4213 * will be stored into the context1 field of the IOCB for the completion
4214 * callback function to the PRLI Accept response ELS IOCB command.
4217 * 0 - Successfully issued acc prli response
4218 * 1 - Failed to issue acc prli response
4221 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4222 struct lpfc_nodelist *ndlp)
4224 struct lpfc_hba *phba = vport->phba;
4229 struct lpfc_iocbq *elsiocb;
4234 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
4235 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4236 ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
4240 icmd = &elsiocb->iocb;
4241 oldcmd = &oldiocb->iocb;
4242 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4243 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4245 /* Xmit PRLI ACC response tag <ulpIoTag> */
4246 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4247 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4248 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4249 elsiocb->iotag, elsiocb->iocb.ulpContext,
4250 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4252 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4254 *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
4255 pcmd += sizeof(uint32_t);
4257 /* For PRLI, remainder of payload is PRLI parameter page */
4258 memset(pcmd, 0, sizeof(PRLI));
4260 npr = (PRLI *) pcmd;
4263 * If the remote port is a target and our firmware version is 3.20 or
4264 * later, set the following bits for FC-TAPE support.
4266 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4267 (vpd->rev.feaLevelHigh >= 0x02)) {
4268 npr->ConfmComplAllowed = 1;
4270 npr->TaskRetryIdReq = 1;
4273 npr->acceptRspCode = PRLI_REQ_EXECUTED;
4274 npr->estabImagePair = 1;
4275 npr->readXferRdyDis = 1;
4276 npr->ConfmComplAllowed = 1;
4278 npr->prliType = PRLI_FCP_TYPE;
4279 npr->initiatorFunc = 1;
4281 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4282 "Issue ACC PRLI: did:x%x flg:x%x",
4283 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4285 phba->fc_stat.elsXmitACC++;
4286 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4288 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4289 if (rc == IOCB_ERROR) {
4290 lpfc_els_free_iocb(phba, elsiocb);
4297 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4298 * @vport: pointer to a virtual N_Port data structure.
4299 * @format: rnid command format.
4300 * @oldiocb: pointer to the original lpfc command iocb data structure.
4301 * @ndlp: pointer to a node-list data structure.
4303 * This routine issues a Request Node Identification Data (RNID) Accept
4304 * (ACC) response. It constructs the RNID ACC response command according to
4305 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4306 * issue the response. Note that this command does not need to hold the ndlp
4307 * reference count for the callback. So, the ndlp reference count taken by
4308 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4309 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4310 * there is no ndlp reference available.
4312 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4313 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4314 * will be stored into the context1 field of the IOCB for the completion
4315 * callback function. However, for the RNID Accept Response ELS command,
4316 * this is undone later by this routine after the IOCB is allocated.
4319 * 0 - Successfully issued acc rnid response
4320 * 1 - Failed to issue acc rnid response
4323 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
4324 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4326 struct lpfc_hba *phba = vport->phba;
4328 IOCB_t *icmd, *oldcmd;
4329 struct lpfc_iocbq *elsiocb;
4334 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
4335 + (2 * sizeof(struct lpfc_name));
4337 cmdsize += sizeof(RNID_TOP_DISC);
4339 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4340 ndlp->nlp_DID, ELS_CMD_ACC);
4344 icmd = &elsiocb->iocb;
4345 oldcmd = &oldiocb->iocb;
4346 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4347 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4349 /* Xmit RNID ACC response tag <ulpIoTag> */
4350 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4351 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4352 elsiocb->iotag, elsiocb->iocb.ulpContext);
4353 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4354 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4355 pcmd += sizeof(uint32_t);
4357 memset(pcmd, 0, sizeof(RNID));
4358 rn = (RNID *) (pcmd);
4359 rn->Format = format;
4360 rn->CommonLen = (2 * sizeof(struct lpfc_name));
4361 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4362 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4365 rn->SpecificLen = 0;
4367 case RNID_TOPOLOGY_DISC:
4368 rn->SpecificLen = sizeof(RNID_TOP_DISC);
4369 memcpy(&rn->un.topologyDisc.portName,
4370 &vport->fc_portname, sizeof(struct lpfc_name));
4371 rn->un.topologyDisc.unitType = RNID_HBA;
4372 rn->un.topologyDisc.physPort = 0;
4373 rn->un.topologyDisc.attachedNodes = 0;
4377 rn->SpecificLen = 0;
4381 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4382 "Issue ACC RNID: did:x%x flg:x%x",
4383 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4385 phba->fc_stat.elsXmitACC++;
4386 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4388 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4389 if (rc == IOCB_ERROR) {
4390 lpfc_els_free_iocb(phba, elsiocb);
4397 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4398 * @vport: pointer to a virtual N_Port data structure.
4399 * @iocb: pointer to the lpfc command iocb data structure.
4400 * @ndlp: pointer to a node-list data structure.
4405 lpfc_els_clear_rrq(struct lpfc_vport *vport,
4406 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
4408 struct lpfc_hba *phba = vport->phba;
4413 struct lpfc_node_rrq *prrq;
4416 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
4417 pcmd += sizeof(uint32_t);
4418 rrq = (struct RRQ *)pcmd;
4419 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
4420 rxid = bf_get(rrq_rxid, rrq);
4422 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4423 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4425 be32_to_cpu(bf_get(rrq_did, rrq)),
4426 bf_get(rrq_oxid, rrq),
4428 iocb->iotag, iocb->iocb.ulpContext);
4430 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4431 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4432 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
4433 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
4434 xri = bf_get(rrq_oxid, rrq);
4437 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
4439 lpfc_clr_rrq_active(phba, xri, prrq);
4444 * lpfc_els_rsp_echo_acc - Issue echo acc response
4445 * @vport: pointer to a virtual N_Port data structure.
4446 * @data: pointer to echo data to return in the accept.
4447 * @oldiocb: pointer to the original lpfc command iocb data structure.
4448 * @ndlp: pointer to a node-list data structure.
4451 * 0 - Successfully issued acc echo response
4452 * 1 - Failed to issue acc echo response
4455 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
4456 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4458 struct lpfc_hba *phba = vport->phba;
4459 struct lpfc_iocbq *elsiocb;
4464 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
4466 /* The accumulated length can exceed the BPL_SIZE. For
4467 * now, use this as the limit
4469 if (cmdsize > LPFC_BPL_SIZE)
4470 cmdsize = LPFC_BPL_SIZE;
4471 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4472 ndlp->nlp_DID, ELS_CMD_ACC);
4476 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
4477 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
4479 /* Xmit ECHO ACC response tag <ulpIoTag> */
4480 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4481 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4482 elsiocb->iotag, elsiocb->iocb.ulpContext);
4483 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4484 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4485 pcmd += sizeof(uint32_t);
4486 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
4488 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4489 "Issue ACC ECHO: did:x%x flg:x%x",
4490 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4492 phba->fc_stat.elsXmitACC++;
4493 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4495 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4496 if (rc == IOCB_ERROR) {
4497 lpfc_els_free_iocb(phba, elsiocb);
4504 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4505 * @vport: pointer to a host virtual N_Port data structure.
4507 * This routine issues Address Discover (ADISC) ELS commands to those
4508 * N_Ports which are in node port recovery state and ADISC has not been issued
4509 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4510 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4511 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4512 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4513 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4514 * IOCBs quit for later pick up. On the other hand, after walking through
4515 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4516 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4517 * no more ADISC need to be sent.
4520 * The number of N_Ports with adisc issued.
4523 lpfc_els_disc_adisc(struct lpfc_vport *vport)
4525 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4526 struct lpfc_nodelist *ndlp, *next_ndlp;
4529 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4530 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4531 if (!NLP_CHK_NODE_ACT(ndlp))
4533 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4534 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4535 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
4536 spin_lock_irq(shost->host_lock);
4537 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4538 spin_unlock_irq(shost->host_lock);
4539 ndlp->nlp_prev_state = ndlp->nlp_state;
4540 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4541 lpfc_issue_els_adisc(vport, ndlp, 0);
4543 vport->num_disc_nodes++;
4544 if (vport->num_disc_nodes >=
4545 vport->cfg_discovery_threads) {
4546 spin_lock_irq(shost->host_lock);
4547 vport->fc_flag |= FC_NLP_MORE;
4548 spin_unlock_irq(shost->host_lock);
4553 if (sentadisc == 0) {
4554 spin_lock_irq(shost->host_lock);
4555 vport->fc_flag &= ~FC_NLP_MORE;
4556 spin_unlock_irq(shost->host_lock);
4562 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4563 * @vport: pointer to a host virtual N_Port data structure.
4565 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4566 * which are in node port recovery state, with a @vport. Each time an ELS
4567 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4568 * the per @vport number of discover count (num_disc_nodes) shall be
4569 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4570 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4571 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4572 * later pick up. On the other hand, after walking through all the ndlps with
4573 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4574 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4575 * PLOGI need to be sent.
4578 * The number of N_Ports with plogi issued.
4581 lpfc_els_disc_plogi(struct lpfc_vport *vport)
4583 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4584 struct lpfc_nodelist *ndlp, *next_ndlp;
4587 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4588 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4589 if (!NLP_CHK_NODE_ACT(ndlp))
4591 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4592 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4593 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
4594 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
4595 ndlp->nlp_prev_state = ndlp->nlp_state;
4596 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4597 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4599 vport->num_disc_nodes++;
4600 if (vport->num_disc_nodes >=
4601 vport->cfg_discovery_threads) {
4602 spin_lock_irq(shost->host_lock);
4603 vport->fc_flag |= FC_NLP_MORE;
4604 spin_unlock_irq(shost->host_lock);
4610 lpfc_set_disctmo(vport);
4613 spin_lock_irq(shost->host_lock);
4614 vport->fc_flag &= ~FC_NLP_MORE;
4615 spin_unlock_irq(shost->host_lock);
4621 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
4625 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
4626 desc->payload.els_req = word0;
4627 desc->length = cpu_to_be32(sizeof(desc->payload));
4629 return sizeof(struct fc_rdp_link_service_desc);
4633 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
4634 uint8_t *page_a0, uint8_t *page_a2)
4636 uint16_t wavelength;
4637 uint16_t temperature;
4643 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
4644 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
4646 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
4648 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
4649 &page_a0[SSF_TRANSCEIVER_CODE_B4];
4650 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
4651 &page_a0[SSF_TRANSCEIVER_CODE_B5];
4653 if ((trasn_code_byte4->fc_sw_laser) ||
4654 (trasn_code_byte5->fc_sw_laser_sl) ||
4655 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
4656 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
4657 } else if (trasn_code_byte4->fc_lw_laser) {
4658 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
4659 page_a0[SSF_WAVELENGTH_B0];
4660 if (wavelength == SFP_WAVELENGTH_LC1310)
4661 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
4662 if (wavelength == SFP_WAVELENGTH_LL1550)
4663 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
4665 /* check if its SFP+ */
4666 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
4667 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
4668 << SFP_FLAG_CT_SHIFT;
4670 /* check if its OPTICAL */
4671 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
4672 SFP_FLAG_IS_OPTICAL_PORT : 0)
4673 << SFP_FLAG_IS_OPTICAL_SHIFT;
4675 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
4676 page_a2[SFF_TEMPERATURE_B0]);
4677 vcc = (page_a2[SFF_VCC_B1] << 8 |
4678 page_a2[SFF_VCC_B0]);
4679 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
4680 page_a2[SFF_TXPOWER_B0]);
4681 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
4682 page_a2[SFF_TX_BIAS_CURRENT_B0]);
4683 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
4684 page_a2[SFF_RXPOWER_B0]);
4685 desc->sfp_info.temperature = cpu_to_be16(temperature);
4686 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
4687 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
4688 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
4689 desc->sfp_info.vcc = cpu_to_be16(vcc);
4691 desc->sfp_info.flags = cpu_to_be16(flag);
4692 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
4694 return sizeof(struct fc_rdp_sfp_desc);
4698 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
4703 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
4705 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
4707 desc->info.port_type = cpu_to_be32(type);
4709 desc->info.link_status.link_failure_cnt =
4710 cpu_to_be32(stat->linkFailureCnt);
4711 desc->info.link_status.loss_of_synch_cnt =
4712 cpu_to_be32(stat->lossSyncCnt);
4713 desc->info.link_status.loss_of_signal_cnt =
4714 cpu_to_be32(stat->lossSignalCnt);
4715 desc->info.link_status.primitive_seq_proto_err =
4716 cpu_to_be32(stat->primSeqErrCnt);
4717 desc->info.link_status.invalid_trans_word =
4718 cpu_to_be32(stat->invalidXmitWord);
4719 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
4721 desc->length = cpu_to_be32(sizeof(desc->info));
4723 return sizeof(struct fc_rdp_link_error_status_desc);
4727 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
4728 struct lpfc_vport *vport)
4732 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
4734 bbCredit = vport->fc_sparam.cmn.bbCreditLsb |
4735 (vport->fc_sparam.cmn.bbCreditMsb << 8);
4736 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit);
4737 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
4738 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb |
4739 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8);
4740 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit);
4742 desc->bbc_info.attached_port_bbc = 0;
4745 desc->bbc_info.rtt = 0;
4746 desc->length = cpu_to_be32(sizeof(desc->bbc_info));
4748 return sizeof(struct fc_rdp_bbc_desc);
4752 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
4753 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
4757 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4759 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM];
4760 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM];
4761 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING];
4762 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING];
4764 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4765 flags |= RDP_OET_HIGH_ALARM;
4766 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4767 flags |= RDP_OET_LOW_ALARM;
4768 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4769 flags |= RDP_OET_HIGH_WARNING;
4770 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4771 flags |= RDP_OET_LOW_WARNING;
4773 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
4774 desc->oed_info.function_flags = cpu_to_be32(flags);
4775 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4776 return sizeof(struct fc_rdp_oed_sfp_desc);
4780 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
4781 struct fc_rdp_oed_sfp_desc *desc,
4786 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4788 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM];
4789 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM];
4790 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING];
4791 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING];
4793 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
4794 flags |= RDP_OET_HIGH_ALARM;
4795 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE)
4796 flags |= RDP_OET_LOW_ALARM;
4797 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
4798 flags |= RDP_OET_HIGH_WARNING;
4799 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE)
4800 flags |= RDP_OET_LOW_WARNING;
4802 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
4803 desc->oed_info.function_flags = cpu_to_be32(flags);
4804 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4805 return sizeof(struct fc_rdp_oed_sfp_desc);
4809 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
4810 struct fc_rdp_oed_sfp_desc *desc,
4815 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4817 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM];
4818 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM];
4819 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING];
4820 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING];
4822 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS)
4823 flags |= RDP_OET_HIGH_ALARM;
4824 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS)
4825 flags |= RDP_OET_LOW_ALARM;
4826 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS)
4827 flags |= RDP_OET_HIGH_WARNING;
4828 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS)
4829 flags |= RDP_OET_LOW_WARNING;
4831 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
4832 desc->oed_info.function_flags = cpu_to_be32(flags);
4833 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4834 return sizeof(struct fc_rdp_oed_sfp_desc);
4838 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
4839 struct fc_rdp_oed_sfp_desc *desc,
4844 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4846 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM];
4847 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM];
4848 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING];
4849 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING];
4851 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER)
4852 flags |= RDP_OET_HIGH_ALARM;
4853 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER)
4854 flags |= RDP_OET_LOW_ALARM;
4855 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER)
4856 flags |= RDP_OET_HIGH_WARNING;
4857 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER)
4858 flags |= RDP_OET_LOW_WARNING;
4860 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
4861 desc->oed_info.function_flags = cpu_to_be32(flags);
4862 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4863 return sizeof(struct fc_rdp_oed_sfp_desc);
4868 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
4869 struct fc_rdp_oed_sfp_desc *desc,
4874 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4876 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM];
4877 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM];
4878 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING];
4879 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING];
4881 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER)
4882 flags |= RDP_OET_HIGH_ALARM;
4883 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER)
4884 flags |= RDP_OET_LOW_ALARM;
4885 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER)
4886 flags |= RDP_OET_HIGH_WARNING;
4887 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER)
4888 flags |= RDP_OET_LOW_WARNING;
4890 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
4891 desc->oed_info.function_flags = cpu_to_be32(flags);
4892 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4893 return sizeof(struct fc_rdp_oed_sfp_desc);
4897 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
4898 uint8_t *page_a0, struct lpfc_vport *vport)
4900 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
4901 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
4902 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
4903 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
4904 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 2);
4905 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
4906 desc->length = cpu_to_be32(sizeof(desc->opd_info));
4907 return sizeof(struct fc_rdp_opd_sfp_desc);
4911 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
4913 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
4915 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
4917 desc->info.CorrectedBlocks =
4918 cpu_to_be32(stat->fecCorrBlkCount);
4919 desc->info.UncorrectableBlocks =
4920 cpu_to_be32(stat->fecUncorrBlkCount);
4922 desc->length = cpu_to_be32(sizeof(desc->info));
4924 return sizeof(struct fc_fec_rdp_desc);
4928 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
4930 uint16_t rdp_cap = 0;
4933 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
4935 switch (phba->fc_linkspeed) {
4936 case LPFC_LINK_SPEED_1GHZ:
4937 rdp_speed = RDP_PS_1GB;
4939 case LPFC_LINK_SPEED_2GHZ:
4940 rdp_speed = RDP_PS_2GB;
4942 case LPFC_LINK_SPEED_4GHZ:
4943 rdp_speed = RDP_PS_4GB;
4945 case LPFC_LINK_SPEED_8GHZ:
4946 rdp_speed = RDP_PS_8GB;
4948 case LPFC_LINK_SPEED_10GHZ:
4949 rdp_speed = RDP_PS_10GB;
4951 case LPFC_LINK_SPEED_16GHZ:
4952 rdp_speed = RDP_PS_16GB;
4954 case LPFC_LINK_SPEED_32GHZ:
4955 rdp_speed = RDP_PS_32GB;
4958 rdp_speed = RDP_PS_UNKNOWN;
4962 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
4964 if (phba->lmt & LMT_32Gb)
4965 rdp_cap |= RDP_PS_32GB;
4966 if (phba->lmt & LMT_16Gb)
4967 rdp_cap |= RDP_PS_16GB;
4968 if (phba->lmt & LMT_10Gb)
4969 rdp_cap |= RDP_PS_10GB;
4970 if (phba->lmt & LMT_8Gb)
4971 rdp_cap |= RDP_PS_8GB;
4972 if (phba->lmt & LMT_4Gb)
4973 rdp_cap |= RDP_PS_4GB;
4974 if (phba->lmt & LMT_2Gb)
4975 rdp_cap |= RDP_PS_2GB;
4976 if (phba->lmt & LMT_1Gb)
4977 rdp_cap |= RDP_PS_1GB;
4980 rdp_cap = RDP_CAP_UNKNOWN;
4981 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
4982 rdp_cap |= RDP_CAP_USER_CONFIGURED;
4984 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
4985 desc->length = cpu_to_be32(sizeof(desc->info));
4986 return sizeof(struct fc_rdp_port_speed_desc);
4990 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
4991 struct lpfc_hba *phba)
4994 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
4996 memcpy(desc->port_names.wwnn, phba->wwnn,
4997 sizeof(desc->port_names.wwnn));
4999 memcpy(desc->port_names.wwpn, &phba->wwpn,
5000 sizeof(desc->port_names.wwpn));
5002 desc->length = cpu_to_be32(sizeof(desc->port_names));
5003 return sizeof(struct fc_rdp_port_name_desc);
5007 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
5008 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5011 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5012 if (vport->fc_flag & FC_FABRIC) {
5013 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
5014 sizeof(desc->port_names.wwnn));
5016 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
5017 sizeof(desc->port_names.wwpn));
5018 } else { /* Point to Point */
5019 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
5020 sizeof(desc->port_names.wwnn));
5022 memcpy(desc->port_names.wwnn, &ndlp->nlp_portname,
5023 sizeof(desc->port_names.wwpn));
5026 desc->length = cpu_to_be32(sizeof(desc->port_names));
5027 return sizeof(struct fc_rdp_port_name_desc);
5031 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
5034 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
5035 struct lpfc_vport *vport = ndlp->vport;
5036 struct lpfc_iocbq *elsiocb;
5037 struct ulp_bde64 *bpl;
5040 struct ls_rjt *stat;
5041 struct fc_rdp_res_frame *rdp_res;
5042 uint32_t cmdsize, len;
5046 if (status != SUCCESS)
5049 /* This will change once we know the true size of the RDP payload */
5050 cmdsize = sizeof(struct fc_rdp_res_frame);
5052 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
5053 lpfc_max_els_tries, rdp_context->ndlp,
5054 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
5057 goto free_rdp_context;
5059 icmd = &elsiocb->iocb;
5060 icmd->ulpContext = rdp_context->rx_id;
5061 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5063 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5064 "2171 Xmit RDP response tag x%x xri x%x, "
5065 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
5066 elsiocb->iotag, elsiocb->iocb.ulpContext,
5067 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5069 rdp_res = (struct fc_rdp_res_frame *)
5070 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5071 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5072 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
5073 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5075 /* Update Alarm and Warning */
5076 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS);
5077 phba->sfp_alarm |= *flag_ptr;
5078 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS);
5079 phba->sfp_warning |= *flag_ptr;
5081 /* For RDP payload */
5083 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
5084 (len + pcmd), ELS_CMD_RDP);
5086 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
5087 rdp_context->page_a0, rdp_context->page_a2);
5088 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
5090 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
5091 (len + pcmd), &rdp_context->link_stat);
5092 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
5093 (len + pcmd), phba);
5094 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
5095 (len + pcmd), vport, ndlp);
5096 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
5097 &rdp_context->link_stat);
5098 /* Check if nport is logged, BZ190632 */
5099 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
5100 goto lpfc_skip_descriptor;
5102 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
5103 &rdp_context->link_stat, vport);
5104 len += lpfc_rdp_res_oed_temp_desc(phba,
5105 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5106 rdp_context->page_a2);
5107 len += lpfc_rdp_res_oed_voltage_desc(phba,
5108 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5109 rdp_context->page_a2);
5110 len += lpfc_rdp_res_oed_txbias_desc(phba,
5111 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5112 rdp_context->page_a2);
5113 len += lpfc_rdp_res_oed_txpower_desc(phba,
5114 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5115 rdp_context->page_a2);
5116 len += lpfc_rdp_res_oed_rxpower_desc(phba,
5117 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5118 rdp_context->page_a2);
5119 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
5120 rdp_context->page_a0, vport);
5122 lpfc_skip_descriptor:
5123 rdp_res->length = cpu_to_be32(len - 8);
5124 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5126 /* Now that we know the true size of the payload, update the BPL */
5127 bpl = (struct ulp_bde64 *)
5128 (((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
5129 bpl->tus.f.bdeSize = len;
5130 bpl->tus.f.bdeFlags = 0;
5131 bpl->tus.w = le32_to_cpu(bpl->tus.w);
5133 phba->fc_stat.elsXmitACC++;
5134 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5135 if (rc == IOCB_ERROR)
5136 lpfc_els_free_iocb(phba, elsiocb);
5142 cmdsize = 2 * sizeof(uint32_t);
5143 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
5144 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
5147 goto free_rdp_context;
5149 icmd = &elsiocb->iocb;
5150 icmd->ulpContext = rdp_context->rx_id;
5151 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5152 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5154 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
5155 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5156 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5158 phba->fc_stat.elsXmitLSRJT++;
5159 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5160 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5162 if (rc == IOCB_ERROR)
5163 lpfc_els_free_iocb(phba, elsiocb);
5169 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
5171 LPFC_MBOXQ_t *mbox = NULL;
5174 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5176 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
5177 "7105 failed to allocate mailbox memory");
5181 if (lpfc_sli4_dump_page_a0(phba, mbox))
5182 goto prep_mbox_fail;
5183 mbox->vport = rdp_context->ndlp->vport;
5184 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
5185 mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
5186 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5187 if (rc == MBX_NOT_FINISHED)
5188 goto issue_mbox_fail;
5194 mempool_free(mbox, phba->mbox_mem_pool);
5199 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
5200 * @vport: pointer to a host virtual N_Port data structure.
5201 * @cmdiocb: pointer to lpfc command iocb data structure.
5202 * @ndlp: pointer to a node-list data structure.
5204 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
5205 * IOCB. First, the payload of the unsolicited RDP is checked.
5206 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
5207 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
5208 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
5209 * gather all data and send RDP response.
5212 * 0 - Sent the acc response
5213 * 1 - Sent the reject response.
5216 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5217 struct lpfc_nodelist *ndlp)
5219 struct lpfc_hba *phba = vport->phba;
5220 struct lpfc_dmabuf *pcmd;
5221 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
5222 struct fc_rdp_req_frame *rdp_req;
5223 struct lpfc_rdp_context *rdp_context;
5227 if (phba->sli_rev < LPFC_SLI_REV4 ||
5228 (bf_get(lpfc_sli_intf_if_type,
5229 &phba->sli4_hba.sli_intf) !=
5230 LPFC_SLI_INTF_IF_TYPE_2)) {
5231 rjt_err = LSRJT_UNABLE_TPC;
5232 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5236 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
5237 rjt_err = LSRJT_UNABLE_TPC;
5238 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5242 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5243 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
5246 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5247 "2422 ELS RDP Request "
5248 "dec len %d tag x%x port_id %d len %d\n",
5249 be32_to_cpu(rdp_req->rdp_des_length),
5250 be32_to_cpu(rdp_req->nport_id_desc.tag),
5251 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
5252 be32_to_cpu(rdp_req->nport_id_desc.length));
5254 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) &&
5255 !phba->cfg_enable_SmartSAN) {
5256 rjt_err = LSRJT_UNABLE_TPC;
5257 rjt_expl = LSEXP_PORT_LOGIN_REQ;
5260 if (sizeof(struct fc_rdp_nport_desc) !=
5261 be32_to_cpu(rdp_req->rdp_des_length))
5263 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
5265 if (RDP_NPORT_ID_SIZE !=
5266 be32_to_cpu(rdp_req->nport_id_desc.length))
5268 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
5270 rjt_err = LSRJT_UNABLE_TPC;
5274 cmd = &cmdiocb->iocb;
5275 rdp_context->ndlp = lpfc_nlp_get(ndlp);
5276 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
5277 rdp_context->rx_id = cmd->ulpContext;
5278 rdp_context->cmpl = lpfc_els_rdp_cmpl;
5279 if (lpfc_get_rdp_info(phba, rdp_context)) {
5280 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
5281 "2423 Unable to send mailbox");
5283 rjt_err = LSRJT_UNABLE_TPC;
5291 rjt_err = LSRJT_LOGICAL_ERR;
5294 memset(&stat, 0, sizeof(stat));
5295 stat.un.b.lsRjtRsnCode = rjt_err;
5296 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
5297 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5303 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5308 struct lpfc_iocbq *elsiocb;
5309 struct lpfc_nodelist *ndlp;
5310 struct ls_rjt *stat;
5311 union lpfc_sli4_cfg_shdr *shdr;
5312 struct lpfc_lcb_context *lcb_context;
5313 struct fc_lcb_res_frame *lcb_res;
5314 uint32_t cmdsize, shdr_status, shdr_add_status;
5318 lcb_context = (struct lpfc_lcb_context *)pmb->context1;
5319 ndlp = lcb_context->ndlp;
5320 pmb->context1 = NULL;
5321 pmb->context2 = NULL;
5323 shdr = (union lpfc_sli4_cfg_shdr *)
5324 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
5325 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5326 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5328 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
5329 "0194 SET_BEACON_CONFIG mailbox "
5330 "completed with status x%x add_status x%x,"
5331 " mbx status x%x\n",
5332 shdr_status, shdr_add_status, mb->mbxStatus);
5334 if (mb->mbxStatus && !(shdr_status &&
5335 shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)) {
5336 mempool_free(pmb, phba->mbox_mem_pool);
5340 mempool_free(pmb, phba->mbox_mem_pool);
5341 cmdsize = sizeof(struct fc_lcb_res_frame);
5342 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5343 lpfc_max_els_tries, ndlp,
5344 ndlp->nlp_DID, ELS_CMD_ACC);
5346 /* Decrement the ndlp reference count from previous mbox command */
5350 goto free_lcb_context;
5352 lcb_res = (struct fc_lcb_res_frame *)
5353 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5355 icmd = &elsiocb->iocb;
5356 icmd->ulpContext = lcb_context->rx_id;
5357 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5359 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5360 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
5361 lcb_res->lcb_sub_command = lcb_context->sub_command;
5362 lcb_res->lcb_type = lcb_context->type;
5363 lcb_res->lcb_frequency = lcb_context->frequency;
5364 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5365 phba->fc_stat.elsXmitACC++;
5366 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5367 if (rc == IOCB_ERROR)
5368 lpfc_els_free_iocb(phba, elsiocb);
5374 cmdsize = sizeof(struct fc_lcb_res_frame);
5375 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5376 lpfc_max_els_tries, ndlp,
5377 ndlp->nlp_DID, ELS_CMD_LS_RJT);
5380 goto free_lcb_context;
5382 icmd = &elsiocb->iocb;
5383 icmd->ulpContext = lcb_context->rx_id;
5384 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5385 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5387 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
5388 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5389 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5391 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5392 phba->fc_stat.elsXmitLSRJT++;
5393 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5394 if (rc == IOCB_ERROR)
5395 lpfc_els_free_iocb(phba, elsiocb);
5401 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
5402 struct lpfc_lcb_context *lcb_context,
5403 uint32_t beacon_state)
5405 struct lpfc_hba *phba = vport->phba;
5406 LPFC_MBOXQ_t *mbox = NULL;
5410 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5414 len = sizeof(struct lpfc_mbx_set_beacon_config) -
5415 sizeof(struct lpfc_sli4_cfg_mhdr);
5416 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5417 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
5418 LPFC_SLI4_MBX_EMBED);
5419 mbox->context1 = (void *)lcb_context;
5420 mbox->vport = phba->pport;
5421 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
5422 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
5423 phba->sli4_hba.physical_port);
5424 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
5426 bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1);
5427 bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0);
5428 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5429 if (rc == MBX_NOT_FINISHED) {
5430 mempool_free(mbox, phba->mbox_mem_pool);
5439 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5440 * @vport: pointer to a host virtual N_Port data structure.
5441 * @cmdiocb: pointer to lpfc command iocb data structure.
5442 * @ndlp: pointer to a node-list data structure.
5444 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5445 * First, the payload of the unsolicited LCB is checked.
5446 * Then based on Subcommand beacon will either turn on or off.
5449 * 0 - Sent the acc response
5450 * 1 - Sent the reject response.
5453 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5454 struct lpfc_nodelist *ndlp)
5456 struct lpfc_hba *phba = vport->phba;
5457 struct lpfc_dmabuf *pcmd;
5459 struct fc_lcb_request_frame *beacon;
5460 struct lpfc_lcb_context *lcb_context;
5461 uint8_t state, rjt_err;
5464 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
5465 lp = (uint8_t *)pcmd->virt;
5466 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
5468 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5469 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5470 "type x%x frequency %x duration x%x\n",
5471 lp[0], lp[1], lp[2],
5472 beacon->lcb_command,
5473 beacon->lcb_sub_command,
5475 beacon->lcb_frequency,
5476 be16_to_cpu(beacon->lcb_duration));
5478 if (phba->sli_rev < LPFC_SLI_REV4 ||
5479 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5480 LPFC_SLI_INTF_IF_TYPE_2)) {
5481 rjt_err = LSRJT_CMD_UNSUPPORTED;
5485 if (phba->hba_flag & HBA_FCOE_MODE) {
5486 rjt_err = LSRJT_CMD_UNSUPPORTED;
5489 if (beacon->lcb_frequency == 0) {
5490 rjt_err = LSRJT_CMD_UNSUPPORTED;
5493 if ((beacon->lcb_type != LPFC_LCB_GREEN) &&
5494 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5495 rjt_err = LSRJT_CMD_UNSUPPORTED;
5498 if ((beacon->lcb_sub_command != LPFC_LCB_ON) &&
5499 (beacon->lcb_sub_command != LPFC_LCB_OFF)) {
5500 rjt_err = LSRJT_CMD_UNSUPPORTED;
5503 if ((beacon->lcb_sub_command == LPFC_LCB_ON) &&
5504 (beacon->lcb_type != LPFC_LCB_GREEN) &&
5505 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5506 rjt_err = LSRJT_CMD_UNSUPPORTED;
5509 if (be16_to_cpu(beacon->lcb_duration) != 0) {
5510 rjt_err = LSRJT_CMD_UNSUPPORTED;
5514 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
5516 rjt_err = LSRJT_UNABLE_TPC;
5520 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
5521 lcb_context->sub_command = beacon->lcb_sub_command;
5522 lcb_context->type = beacon->lcb_type;
5523 lcb_context->frequency = beacon->lcb_frequency;
5524 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
5525 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
5526 lcb_context->ndlp = lpfc_nlp_get(ndlp);
5527 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
5528 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
5529 LOG_ELS, "0193 failed to send mail box");
5532 rjt_err = LSRJT_UNABLE_TPC;
5537 memset(&stat, 0, sizeof(stat));
5538 stat.un.b.lsRjtRsnCode = rjt_err;
5539 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5545 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5546 * @vport: pointer to a host virtual N_Port data structure.
5548 * This routine cleans up any Registration State Change Notification
5549 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5550 * @vport together with the host_lock is used to prevent multiple thread
5551 * trying to access the RSCN array on a same @vport at the same time.
5554 lpfc_els_flush_rscn(struct lpfc_vport *vport)
5556 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5557 struct lpfc_hba *phba = vport->phba;
5560 spin_lock_irq(shost->host_lock);
5561 if (vport->fc_rscn_flush) {
5562 /* Another thread is walking fc_rscn_id_list on this vport */
5563 spin_unlock_irq(shost->host_lock);
5566 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5567 vport->fc_rscn_flush = 1;
5568 spin_unlock_irq(shost->host_lock);
5570 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5571 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
5572 vport->fc_rscn_id_list[i] = NULL;
5574 spin_lock_irq(shost->host_lock);
5575 vport->fc_rscn_id_cnt = 0;
5576 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
5577 spin_unlock_irq(shost->host_lock);
5578 lpfc_can_disctmo(vport);
5579 /* Indicate we are done walking this fc_rscn_id_list */
5580 vport->fc_rscn_flush = 0;
5584 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5585 * @vport: pointer to a host virtual N_Port data structure.
5586 * @did: remote destination port identifier.
5588 * This routine checks whether there is any pending Registration State
5589 * Configuration Notification (RSCN) to a @did on @vport.
5592 * None zero - The @did matched with a pending rscn
5593 * 0 - not able to match @did with a pending rscn
5596 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
5601 uint32_t payload_len, i;
5602 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5604 ns_did.un.word = did;
5606 /* Never match fabric nodes for RSCNs */
5607 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
5610 /* If we are doing a FULL RSCN rediscovery, match everything */
5611 if (vport->fc_flag & FC_RSCN_DISCOVERY)
5614 spin_lock_irq(shost->host_lock);
5615 if (vport->fc_rscn_flush) {
5616 /* Another thread is walking fc_rscn_id_list on this vport */
5617 spin_unlock_irq(shost->host_lock);
5620 /* Indicate we are walking fc_rscn_id_list on this vport */
5621 vport->fc_rscn_flush = 1;
5622 spin_unlock_irq(shost->host_lock);
5623 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5624 lp = vport->fc_rscn_id_list[i]->virt;
5625 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5626 payload_len -= sizeof(uint32_t); /* take off word 0 */
5627 while (payload_len) {
5628 rscn_did.un.word = be32_to_cpu(*lp++);
5629 payload_len -= sizeof(uint32_t);
5630 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
5631 case RSCN_ADDRESS_FORMAT_PORT:
5632 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5633 && (ns_did.un.b.area == rscn_did.un.b.area)
5634 && (ns_did.un.b.id == rscn_did.un.b.id))
5635 goto return_did_out;
5637 case RSCN_ADDRESS_FORMAT_AREA:
5638 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5639 && (ns_did.un.b.area == rscn_did.un.b.area))
5640 goto return_did_out;
5642 case RSCN_ADDRESS_FORMAT_DOMAIN:
5643 if (ns_did.un.b.domain == rscn_did.un.b.domain)
5644 goto return_did_out;
5646 case RSCN_ADDRESS_FORMAT_FABRIC:
5647 goto return_did_out;
5651 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5652 vport->fc_rscn_flush = 0;
5655 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5656 vport->fc_rscn_flush = 0;
5661 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5662 * @vport: pointer to a host virtual N_Port data structure.
5664 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5665 * state machine for a @vport's nodes that are with pending RSCN (Registration
5666 * State Change Notification).
5669 * 0 - Successful (currently alway return 0)
5672 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
5674 struct lpfc_nodelist *ndlp = NULL;
5676 /* Move all affected nodes by pending RSCNs to NPR state. */
5677 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5678 if (!NLP_CHK_NODE_ACT(ndlp) ||
5679 (ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
5680 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
5682 lpfc_disc_state_machine(vport, ndlp, NULL,
5683 NLP_EVT_DEVICE_RECOVERY);
5684 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5690 * lpfc_send_rscn_event - Send an RSCN event to management application
5691 * @vport: pointer to a host virtual N_Port data structure.
5692 * @cmdiocb: pointer to lpfc command iocb data structure.
5694 * lpfc_send_rscn_event sends an RSCN netlink event to management
5698 lpfc_send_rscn_event(struct lpfc_vport *vport,
5699 struct lpfc_iocbq *cmdiocb)
5701 struct lpfc_dmabuf *pcmd;
5702 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5703 uint32_t *payload_ptr;
5704 uint32_t payload_len;
5705 struct lpfc_rscn_event_header *rscn_event_data;
5707 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5708 payload_ptr = (uint32_t *) pcmd->virt;
5709 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
5711 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
5712 payload_len, GFP_KERNEL);
5713 if (!rscn_event_data) {
5714 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5715 "0147 Failed to allocate memory for RSCN event\n");
5718 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
5719 rscn_event_data->payload_length = payload_len;
5720 memcpy(rscn_event_data->rscn_payload, payload_ptr,
5723 fc_host_post_vendor_event(shost,
5724 fc_get_event_number(),
5725 sizeof(struct lpfc_rscn_event_header) + payload_len,
5726 (char *)rscn_event_data,
5729 kfree(rscn_event_data);
5733 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5734 * @vport: pointer to a host virtual N_Port data structure.
5735 * @cmdiocb: pointer to lpfc command iocb data structure.
5736 * @ndlp: pointer to a node-list data structure.
5738 * This routine processes an unsolicited RSCN (Registration State Change
5739 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5740 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5741 * discover state machine is about to begin discovery, it just accepts the
5742 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5743 * contains N_Port IDs for other vports on this HBA, it just accepts the
5744 * RSCN and ignore processing it. If the state machine is in the recovery
5745 * state, the fc_rscn_id_list of this @vport is walked and the
5746 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5747 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5748 * routine is invoked to handle the RSCN event.
5751 * 0 - Just sent the acc response
5752 * 1 - Sent the acc response and waited for name server completion
5755 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5756 struct lpfc_nodelist *ndlp)
5758 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5759 struct lpfc_hba *phba = vport->phba;
5760 struct lpfc_dmabuf *pcmd;
5761 uint32_t *lp, *datap;
5762 uint32_t payload_len, length, nportid, *cmd;
5764 int rscn_id = 0, hba_id = 0;
5767 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5768 lp = (uint32_t *) pcmd->virt;
5770 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5771 payload_len -= sizeof(uint32_t); /* take off word 0 */
5773 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5774 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5775 vport->fc_flag, payload_len, *lp,
5776 vport->fc_rscn_id_cnt);
5778 /* Send an RSCN event to the management application */
5779 lpfc_send_rscn_event(vport, cmdiocb);
5781 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
5782 fc_host_post_event(shost, fc_get_event_number(),
5783 FCH_EVT_RSCN, lp[i]);
5785 /* If we are about to begin discovery, just ACC the RSCN.
5786 * Discovery processing will satisfy it.
5788 if (vport->port_state <= LPFC_NS_QRY) {
5789 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5790 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5791 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5793 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5797 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5798 * just ACC and ignore it.
5800 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5801 !(vport->cfg_peer_port_login)) {
5806 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
5807 i -= sizeof(uint32_t);
5809 if (lpfc_find_vport_by_did(phba, nportid))
5812 if (rscn_id == hba_id) {
5813 /* ALL NPortIDs in RSCN are on HBA */
5814 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5816 "Data: x%x x%x x%x x%x\n",
5817 vport->fc_flag, payload_len,
5818 *lp, vport->fc_rscn_id_cnt);
5819 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5820 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
5821 ndlp->nlp_DID, vport->port_state,
5824 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
5830 spin_lock_irq(shost->host_lock);
5831 if (vport->fc_rscn_flush) {
5832 /* Another thread is walking fc_rscn_id_list on this vport */
5833 vport->fc_flag |= FC_RSCN_DISCOVERY;
5834 spin_unlock_irq(shost->host_lock);
5836 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5839 /* Indicate we are walking fc_rscn_id_list on this vport */
5840 vport->fc_rscn_flush = 1;
5841 spin_unlock_irq(shost->host_lock);
5842 /* Get the array count after successfully have the token */
5843 rscn_cnt = vport->fc_rscn_id_cnt;
5844 /* If we are already processing an RSCN, save the received
5845 * RSCN payload buffer, cmdiocb->context2 to process later.
5847 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
5848 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5849 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
5850 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5852 spin_lock_irq(shost->host_lock);
5853 vport->fc_flag |= FC_RSCN_DEFERRED;
5854 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
5855 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
5856 vport->fc_flag |= FC_RSCN_MODE;
5857 spin_unlock_irq(shost->host_lock);
5859 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
5860 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
5863 (payload_len + length <= LPFC_BPL_SIZE)) {
5864 *cmd &= ELS_CMD_MASK;
5865 *cmd |= cpu_to_be32(payload_len + length);
5866 memcpy(((uint8_t *)cmd) + length, lp,
5869 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
5870 vport->fc_rscn_id_cnt++;
5871 /* If we zero, cmdiocb->context2, the calling
5872 * routine will not try to free it.
5874 cmdiocb->context2 = NULL;
5877 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5878 "0235 Deferred RSCN "
5879 "Data: x%x x%x x%x\n",
5880 vport->fc_rscn_id_cnt, vport->fc_flag,
5883 vport->fc_flag |= FC_RSCN_DISCOVERY;
5884 spin_unlock_irq(shost->host_lock);
5885 /* ReDiscovery RSCN */
5886 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5887 "0234 ReDiscovery RSCN "
5888 "Data: x%x x%x x%x\n",
5889 vport->fc_rscn_id_cnt, vport->fc_flag,
5892 /* Indicate we are done walking fc_rscn_id_list on this vport */
5893 vport->fc_rscn_flush = 0;
5895 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5896 /* send RECOVERY event for ALL nodes that match RSCN payload */
5897 lpfc_rscn_recovery_check(vport);
5898 spin_lock_irq(shost->host_lock);
5899 vport->fc_flag &= ~FC_RSCN_DEFERRED;
5900 spin_unlock_irq(shost->host_lock);
5903 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5904 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
5905 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5907 spin_lock_irq(shost->host_lock);
5908 vport->fc_flag |= FC_RSCN_MODE;
5909 spin_unlock_irq(shost->host_lock);
5910 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
5911 /* Indicate we are done walking fc_rscn_id_list on this vport */
5912 vport->fc_rscn_flush = 0;
5914 * If we zero, cmdiocb->context2, the calling routine will
5915 * not try to free it.
5917 cmdiocb->context2 = NULL;
5918 lpfc_set_disctmo(vport);
5920 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5921 /* send RECOVERY event for ALL nodes that match RSCN payload */
5922 lpfc_rscn_recovery_check(vport);
5923 return lpfc_els_handle_rscn(vport);
5927 * lpfc_els_handle_rscn - Handle rscn for a vport
5928 * @vport: pointer to a host virtual N_Port data structure.
5930 * This routine handles the Registration State Configuration Notification
5931 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5932 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5933 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5934 * NameServer shall be issued. If CT command to the NameServer fails to be
5935 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5936 * RSCN activities with the @vport.
5939 * 0 - Cleaned up rscn on the @vport
5940 * 1 - Wait for plogi to name server before proceed
5943 lpfc_els_handle_rscn(struct lpfc_vport *vport)
5945 struct lpfc_nodelist *ndlp;
5946 struct lpfc_hba *phba = vport->phba;
5948 /* Ignore RSCN if the port is being torn down. */
5949 if (vport->load_flag & FC_UNLOADING) {
5950 lpfc_els_flush_rscn(vport);
5954 /* Start timer for RSCN processing */
5955 lpfc_set_disctmo(vport);
5957 /* RSCN processed */
5958 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5959 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5960 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
5963 /* To process RSCN, first compare RSCN data with NameServer */
5964 vport->fc_ns_retry = 0;
5965 vport->num_disc_nodes = 0;
5967 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5968 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
5969 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
5970 /* Good ndlp, issue CT Request to NameServer */
5971 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0)
5972 /* Wait for NameServer query cmpl before we can
5976 /* If login to NameServer does not exist, issue one */
5977 /* Good status, issue PLOGI to NameServer */
5978 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5979 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5980 /* Wait for NameServer login cmpl before we can
5985 ndlp = lpfc_enable_node(vport, ndlp,
5986 NLP_STE_PLOGI_ISSUE);
5988 lpfc_els_flush_rscn(vport);
5991 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
5993 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
5995 lpfc_els_flush_rscn(vport);
5998 lpfc_nlp_init(vport, ndlp, NameServer_DID);
5999 ndlp->nlp_prev_state = ndlp->nlp_state;
6000 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
6002 ndlp->nlp_type |= NLP_FABRIC;
6003 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
6004 /* Wait for NameServer login cmpl before we can
6010 lpfc_els_flush_rscn(vport);
6015 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
6016 * @vport: pointer to a host virtual N_Port data structure.
6017 * @cmdiocb: pointer to lpfc command iocb data structure.
6018 * @ndlp: pointer to a node-list data structure.
6020 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
6021 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
6022 * point topology. As an unsolicited FLOGI should not be received in a loop
6023 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
6024 * lpfc_check_sparm() routine is invoked to check the parameters in the
6025 * unsolicited FLOGI. If parameters validation failed, the routine
6026 * lpfc_els_rsp_reject() shall be called with reject reason code set to
6027 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
6028 * FLOGI shall be compared with the Port WWN of the @vport to determine who
6029 * will initiate PLOGI. The higher lexicographical value party shall has
6030 * higher priority (as the winning port) and will initiate PLOGI and
6031 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
6032 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
6033 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
6036 * 0 - Successfully processed the unsolicited flogi
6037 * 1 - Failed to process the unsolicited flogi
6040 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6041 struct lpfc_nodelist *ndlp)
6043 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6044 struct lpfc_hba *phba = vport->phba;
6045 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6046 uint32_t *lp = (uint32_t *) pcmd->virt;
6047 IOCB_t *icmd = &cmdiocb->iocb;
6048 struct serv_parm *sp;
6052 uint32_t fc_flag = 0;
6053 uint32_t port_state = 0;
6056 sp = (struct serv_parm *) lp;
6058 /* FLOGI received */
6060 lpfc_set_disctmo(vport);
6062 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6063 /* We should never receive a FLOGI in loop mode, ignore it */
6064 did = icmd->un.elsreq64.remoteID;
6066 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
6068 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
6069 "0113 An FLOGI ELS command x%x was "
6070 "received from DID x%x in Loop Mode\n",
6075 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
6079 * If our portname is greater than the remote portname,
6080 * then we initiate Nport login.
6083 rc = memcmp(&vport->fc_portname, &sp->portName,
6084 sizeof(struct lpfc_name));
6087 if (phba->sli_rev < LPFC_SLI_REV4) {
6088 mbox = mempool_alloc(phba->mbox_mem_pool,
6092 lpfc_linkdown(phba);
6093 lpfc_init_link(phba, mbox,
6095 phba->cfg_link_speed);
6096 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
6097 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6098 mbox->vport = vport;
6099 rc = lpfc_sli_issue_mbox(phba, mbox,
6101 lpfc_set_loopback_flag(phba);
6102 if (rc == MBX_NOT_FINISHED)
6103 mempool_free(mbox, phba->mbox_mem_pool);
6107 /* abort the flogi coming back to ourselves
6108 * due to external loopback on the port.
6110 lpfc_els_abort_flogi(phba);
6113 } else if (rc > 0) { /* greater than */
6114 spin_lock_irq(shost->host_lock);
6115 vport->fc_flag |= FC_PT2PT_PLOGI;
6116 spin_unlock_irq(shost->host_lock);
6118 /* If we have the high WWPN we can assign our own
6119 * myDID; otherwise, we have to WAIT for a PLOGI
6120 * from the remote NPort to find out what it
6123 vport->fc_myDID = PT2PT_LocalID;
6125 vport->fc_myDID = PT2PT_RemoteID;
6129 * The vport state should go to LPFC_FLOGI only
6130 * AFTER we issue a FLOGI, not receive one.
6132 spin_lock_irq(shost->host_lock);
6133 fc_flag = vport->fc_flag;
6134 port_state = vport->port_state;
6135 vport->fc_flag |= FC_PT2PT;
6136 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
6137 spin_unlock_irq(shost->host_lock);
6138 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6139 "3311 Rcv Flogi PS x%x new PS x%x "
6140 "fc_flag x%x new fc_flag x%x\n",
6141 port_state, vport->port_state,
6142 fc_flag, vport->fc_flag);
6145 * We temporarily set fc_myDID to make it look like we are
6146 * a Fabric. This is done just so we end up with the right
6147 * did / sid on the FLOGI ACC rsp.
6149 did = vport->fc_myDID;
6150 vport->fc_myDID = Fabric_DID;
6152 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
6155 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
6157 /* Now lets put fc_myDID back to what its supposed to be */
6158 vport->fc_myDID = did;
6164 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
6165 * @vport: pointer to a host virtual N_Port data structure.
6166 * @cmdiocb: pointer to lpfc command iocb data structure.
6167 * @ndlp: pointer to a node-list data structure.
6169 * This routine processes Request Node Identification Data (RNID) IOCB
6170 * received as an ELS unsolicited event. Only when the RNID specified format
6171 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
6172 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
6173 * Accept (ACC) the RNID ELS command. All the other RNID formats are
6174 * rejected by invoking the lpfc_els_rsp_reject() routine.
6177 * 0 - Successfully processed rnid iocb (currently always return 0)
6180 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6181 struct lpfc_nodelist *ndlp)
6183 struct lpfc_dmabuf *pcmd;
6189 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6190 lp = (uint32_t *) pcmd->virt;
6197 switch (rn->Format) {
6199 case RNID_TOPOLOGY_DISC:
6201 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
6204 /* Reject this request because format not supported */
6205 stat.un.b.lsRjtRsvd0 = 0;
6206 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6207 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6208 stat.un.b.vendorUnique = 0;
6209 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6216 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
6217 * @vport: pointer to a host virtual N_Port data structure.
6218 * @cmdiocb: pointer to lpfc command iocb data structure.
6219 * @ndlp: pointer to a node-list data structure.
6222 * 0 - Successfully processed echo iocb (currently always return 0)
6225 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6226 struct lpfc_nodelist *ndlp)
6230 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
6232 /* skip over first word of echo command to find echo data */
6233 pcmd += sizeof(uint32_t);
6235 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
6240 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
6241 * @vport: pointer to a host virtual N_Port data structure.
6242 * @cmdiocb: pointer to lpfc command iocb data structure.
6243 * @ndlp: pointer to a node-list data structure.
6245 * This routine processes a Link Incident Report Registration(LIRR) IOCB
6246 * received as an ELS unsolicited event. Currently, this function just invokes
6247 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
6250 * 0 - Successfully processed lirr iocb (currently always return 0)
6253 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6254 struct lpfc_nodelist *ndlp)
6258 /* For now, unconditionally reject this command */
6259 stat.un.b.lsRjtRsvd0 = 0;
6260 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6261 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6262 stat.un.b.vendorUnique = 0;
6263 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6268 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
6269 * @vport: pointer to a host virtual N_Port data structure.
6270 * @cmdiocb: pointer to lpfc command iocb data structure.
6271 * @ndlp: pointer to a node-list data structure.
6273 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
6274 * received as an ELS unsolicited event. A request to RRQ shall only
6275 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
6276 * Nx_Port N_Port_ID of the target Exchange is the same as the
6277 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
6278 * not accepted, an LS_RJT with reason code "Unable to perform
6279 * command request" and reason code explanation "Invalid Originator
6280 * S_ID" shall be returned. For now, we just unconditionally accept
6281 * RRQ from the target.
6284 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6285 struct lpfc_nodelist *ndlp)
6287 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6288 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6289 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
6293 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6294 * @phba: pointer to lpfc hba data structure.
6295 * @pmb: pointer to the driver internal queue element for mailbox command.
6297 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6298 * mailbox command. This callback function is to actually send the Accept
6299 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6300 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6301 * mailbox command, constructs the RPS response with the link statistics
6302 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6303 * response to the RPS.
6305 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6306 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6307 * will be stored into the context1 field of the IOCB for the completion
6308 * callback function to the RPS Accept Response ELS IOCB command.
6312 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6316 struct RLS_RSP *rls_rsp;
6318 struct lpfc_iocbq *elsiocb;
6319 struct lpfc_nodelist *ndlp;
6326 ndlp = (struct lpfc_nodelist *) pmb->context2;
6327 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6328 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6329 pmb->context1 = NULL;
6330 pmb->context2 = NULL;
6332 if (mb->mbxStatus) {
6333 mempool_free(pmb, phba->mbox_mem_pool);
6337 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
6338 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6339 lpfc_max_els_tries, ndlp,
6340 ndlp->nlp_DID, ELS_CMD_ACC);
6342 /* Decrement the ndlp reference count from previous mbox command */
6346 mempool_free(pmb, phba->mbox_mem_pool);
6350 icmd = &elsiocb->iocb;
6351 icmd->ulpContext = rxid;
6352 icmd->unsli3.rcvsli3.ox_id = oxid;
6354 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6355 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6356 pcmd += sizeof(uint32_t); /* Skip past command */
6357 rls_rsp = (struct RLS_RSP *)pcmd;
6359 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6360 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6361 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6362 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6363 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6364 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6365 mempool_free(pmb, phba->mbox_mem_pool);
6366 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6367 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6368 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6369 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6370 elsiocb->iotag, elsiocb->iocb.ulpContext,
6371 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6373 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6374 phba->fc_stat.elsXmitACC++;
6375 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6376 lpfc_els_free_iocb(phba, elsiocb);
6380 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6381 * @phba: pointer to lpfc hba data structure.
6382 * @pmb: pointer to the driver internal queue element for mailbox command.
6384 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6385 * mailbox command. This callback function is to actually send the Accept
6386 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6387 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6388 * mailbox command, constructs the RPS response with the link statistics
6389 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6390 * response to the RPS.
6392 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6393 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6394 * will be stored into the context1 field of the IOCB for the completion
6395 * callback function to the RPS Accept Response ELS IOCB command.
6399 lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6405 struct lpfc_iocbq *elsiocb;
6406 struct lpfc_nodelist *ndlp;
6414 ndlp = (struct lpfc_nodelist *) pmb->context2;
6415 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6416 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6417 pmb->context1 = NULL;
6418 pmb->context2 = NULL;
6420 if (mb->mbxStatus) {
6421 mempool_free(pmb, phba->mbox_mem_pool);
6425 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
6426 mempool_free(pmb, phba->mbox_mem_pool);
6427 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6428 lpfc_max_els_tries, ndlp,
6429 ndlp->nlp_DID, ELS_CMD_ACC);
6431 /* Decrement the ndlp reference count from previous mbox command */
6437 icmd = &elsiocb->iocb;
6438 icmd->ulpContext = rxid;
6439 icmd->unsli3.rcvsli3.ox_id = oxid;
6441 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6442 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6443 pcmd += sizeof(uint32_t); /* Skip past command */
6444 rps_rsp = (RPS_RSP *)pcmd;
6446 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
6450 if (phba->pport->fc_flag & FC_FABRIC)
6454 rps_rsp->portStatus = cpu_to_be16(status);
6455 rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6456 rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6457 rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6458 rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6459 rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6460 rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6461 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6462 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6463 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6464 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6465 elsiocb->iotag, elsiocb->iocb.ulpContext,
6466 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6468 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6469 phba->fc_stat.elsXmitACC++;
6470 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6471 lpfc_els_free_iocb(phba, elsiocb);
6476 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6477 * @vport: pointer to a host virtual N_Port data structure.
6478 * @cmdiocb: pointer to lpfc command iocb data structure.
6479 * @ndlp: pointer to a node-list data structure.
6481 * This routine processes Read Port Status (RPL) IOCB received as an
6482 * ELS unsolicited event. It first checks the remote port state. If the
6483 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6484 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6485 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6486 * for reading the HBA link statistics. It is for the callback function,
6487 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6488 * to actually sending out RPL Accept (ACC) response.
6491 * 0 - Successfully processed rls iocb (currently always return 0)
6494 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6495 struct lpfc_nodelist *ndlp)
6497 struct lpfc_hba *phba = vport->phba;
6501 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6502 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6503 /* reject the unsolicited RPS request and done with it */
6506 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6508 lpfc_read_lnk_stat(phba, mbox);
6509 mbox->context1 = (void *)((unsigned long)
6510 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6511 cmdiocb->iocb.ulpContext)); /* rx_id */
6512 mbox->context2 = lpfc_nlp_get(ndlp);
6513 mbox->vport = vport;
6514 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
6515 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6516 != MBX_NOT_FINISHED)
6517 /* Mbox completion will send ELS Response */
6519 /* Decrement reference count used for the failed mbox
6523 mempool_free(mbox, phba->mbox_mem_pool);
6526 /* issue rejection response */
6527 stat.un.b.lsRjtRsvd0 = 0;
6528 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6529 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6530 stat.un.b.vendorUnique = 0;
6531 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6536 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6537 * @vport: pointer to a host virtual N_Port data structure.
6538 * @cmdiocb: pointer to lpfc command iocb data structure.
6539 * @ndlp: pointer to a node-list data structure.
6541 * This routine processes Read Timout Value (RTV) IOCB received as an
6542 * ELS unsolicited event. It first checks the remote port state. If the
6543 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6544 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6545 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6546 * Value (RTV) unsolicited IOCB event.
6548 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6549 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6550 * will be stored into the context1 field of the IOCB for the completion
6551 * callback function to the RPS Accept Response ELS IOCB command.
6554 * 0 - Successfully processed rtv iocb (currently always return 0)
6557 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6558 struct lpfc_nodelist *ndlp)
6560 struct lpfc_hba *phba = vport->phba;
6562 struct RTV_RSP *rtv_rsp;
6564 struct lpfc_iocbq *elsiocb;
6568 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6569 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6570 /* reject the unsolicited RPS request and done with it */
6573 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
6574 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6575 lpfc_max_els_tries, ndlp,
6576 ndlp->nlp_DID, ELS_CMD_ACC);
6581 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6582 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6583 pcmd += sizeof(uint32_t); /* Skip past command */
6585 /* use the command's xri in the response */
6586 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
6587 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
6589 rtv_rsp = (struct RTV_RSP *)pcmd;
6591 /* populate RTV payload */
6592 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
6593 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
6594 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
6595 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
6596 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
6598 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6599 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6600 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6601 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6602 "Data: x%x x%x x%x\n",
6603 elsiocb->iotag, elsiocb->iocb.ulpContext,
6604 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6606 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
6607 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6608 phba->fc_stat.elsXmitACC++;
6609 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6610 lpfc_els_free_iocb(phba, elsiocb);
6614 /* issue rejection response */
6615 stat.un.b.lsRjtRsvd0 = 0;
6616 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6617 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6618 stat.un.b.vendorUnique = 0;
6619 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6623 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6624 * @vport: pointer to a host virtual N_Port data structure.
6625 * @cmdiocb: pointer to lpfc command iocb data structure.
6626 * @ndlp: pointer to a node-list data structure.
6628 * This routine processes Read Port Status (RPS) IOCB received as an
6629 * ELS unsolicited event. It first checks the remote port state. If the
6630 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6631 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6632 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6633 * for reading the HBA link statistics. It is for the callback function,
6634 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6635 * to actually sending out RPS Accept (ACC) response.
6638 * 0 - Successfully processed rps iocb (currently always return 0)
6641 lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6642 struct lpfc_nodelist *ndlp)
6644 struct lpfc_hba *phba = vport->phba;
6648 struct lpfc_dmabuf *pcmd;
6652 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6653 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6654 /* reject the unsolicited RPS request and done with it */
6657 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6658 lp = (uint32_t *) pcmd->virt;
6659 flag = (be32_to_cpu(*lp++) & 0xf);
6663 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
6664 ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
6665 sizeof(struct lpfc_name)) == 0))) {
6667 printk("Fix me....\n");
6669 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6671 lpfc_read_lnk_stat(phba, mbox);
6672 mbox->context1 = (void *)((unsigned long)
6673 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6674 cmdiocb->iocb.ulpContext)); /* rx_id */
6675 mbox->context2 = lpfc_nlp_get(ndlp);
6676 mbox->vport = vport;
6677 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
6678 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6679 != MBX_NOT_FINISHED)
6680 /* Mbox completion will send ELS Response */
6682 /* Decrement reference count used for the failed mbox
6686 mempool_free(mbox, phba->mbox_mem_pool);
6691 /* issue rejection response */
6692 stat.un.b.lsRjtRsvd0 = 0;
6693 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6694 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6695 stat.un.b.vendorUnique = 0;
6696 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6700 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6701 * @vport: pointer to a host virtual N_Port data structure.
6702 * @ndlp: pointer to a node-list data structure.
6703 * @did: DID of the target.
6704 * @rrq: Pointer to the rrq struct.
6706 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6707 * Successful the the completion handler will clear the RRQ.
6710 * 0 - Successfully sent rrq els iocb.
6711 * 1 - Failed to send rrq els iocb.
6714 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
6715 uint32_t did, struct lpfc_node_rrq *rrq)
6717 struct lpfc_hba *phba = vport->phba;
6718 struct RRQ *els_rrq;
6719 struct lpfc_iocbq *elsiocb;
6725 if (ndlp != rrq->ndlp)
6727 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
6730 /* If ndlp is not NULL, we will bump the reference count on it */
6731 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
6732 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
6737 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6739 /* For RRQ request, remainder of payload is Exchange IDs */
6740 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
6741 pcmd += sizeof(uint32_t);
6742 els_rrq = (struct RRQ *) pcmd;
6744 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
6745 bf_set(rrq_rxid, els_rrq, rrq->rxid);
6746 bf_set(rrq_did, els_rrq, vport->fc_myDID);
6747 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
6748 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
6751 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
6752 "Issue RRQ: did:x%x",
6753 did, rrq->xritag, rrq->rxid);
6754 elsiocb->context_un.rrq = rrq;
6755 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
6756 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6758 if (ret == IOCB_ERROR) {
6759 lpfc_els_free_iocb(phba, elsiocb);
6766 * lpfc_send_rrq - Sends ELS RRQ if needed.
6767 * @phba: pointer to lpfc hba data structure.
6768 * @rrq: pointer to the active rrq.
6770 * This routine will call the lpfc_issue_els_rrq if the rrq is
6771 * still active for the xri. If this function returns a failure then
6772 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6774 * Returns 0 Success.
6778 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
6780 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
6782 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
6783 return lpfc_issue_els_rrq(rrq->vport, ndlp,
6790 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6791 * @vport: pointer to a host virtual N_Port data structure.
6792 * @cmdsize: size of the ELS command.
6793 * @oldiocb: pointer to the original lpfc command iocb data structure.
6794 * @ndlp: pointer to a node-list data structure.
6796 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6797 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6799 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6800 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6801 * will be stored into the context1 field of the IOCB for the completion
6802 * callback function to the RPL Accept Response ELS command.
6805 * 0 - Successfully issued ACC RPL ELS command
6806 * 1 - Failed to issue ACC RPL ELS command
6809 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
6810 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
6812 struct lpfc_hba *phba = vport->phba;
6813 IOCB_t *icmd, *oldcmd;
6815 struct lpfc_iocbq *elsiocb;
6818 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
6819 ndlp->nlp_DID, ELS_CMD_ACC);
6824 icmd = &elsiocb->iocb;
6825 oldcmd = &oldiocb->iocb;
6826 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6827 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
6829 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6830 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6831 pcmd += sizeof(uint16_t);
6832 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
6833 pcmd += sizeof(uint16_t);
6835 /* Setup the RPL ACC payload */
6836 rpl_rsp.listLen = be32_to_cpu(1);
6838 rpl_rsp.port_num_blk.portNum = 0;
6839 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
6840 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
6841 sizeof(struct lpfc_name));
6842 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
6843 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
6844 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6845 "0120 Xmit ELS RPL ACC response tag x%x "
6846 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
6848 elsiocb->iotag, elsiocb->iocb.ulpContext,
6849 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6851 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6852 phba->fc_stat.elsXmitACC++;
6853 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
6855 lpfc_els_free_iocb(phba, elsiocb);
6862 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
6863 * @vport: pointer to a host virtual N_Port data structure.
6864 * @cmdiocb: pointer to lpfc command iocb data structure.
6865 * @ndlp: pointer to a node-list data structure.
6867 * This routine processes Read Port List (RPL) IOCB received as an ELS
6868 * unsolicited event. It first checks the remote port state. If the remote
6869 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
6870 * invokes the lpfc_els_rsp_reject() routine to send reject response.
6871 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
6872 * to accept the RPL.
6875 * 0 - Successfully processed rpl iocb (currently always return 0)
6878 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6879 struct lpfc_nodelist *ndlp)
6881 struct lpfc_dmabuf *pcmd;
6888 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6889 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
6890 /* issue rejection response */
6891 stat.un.b.lsRjtRsvd0 = 0;
6892 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6893 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6894 stat.un.b.vendorUnique = 0;
6895 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6897 /* rejected the unsolicited RPL request and done with it */
6901 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6902 lp = (uint32_t *) pcmd->virt;
6903 rpl = (RPL *) (lp + 1);
6904 maxsize = be32_to_cpu(rpl->maxsize);
6906 /* We support only one port */
6907 if ((rpl->index == 0) &&
6909 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
6910 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
6912 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
6914 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
6920 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6921 * @vport: pointer to a virtual N_Port data structure.
6922 * @cmdiocb: pointer to lpfc command iocb data structure.
6923 * @ndlp: pointer to a node-list data structure.
6925 * This routine processes Fibre Channel Address Resolution Protocol
6926 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6927 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6928 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6929 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6930 * remote PortName is compared against the FC PortName stored in the @vport
6931 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6932 * compared against the FC NodeName stored in the @vport data structure.
6933 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6934 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6935 * invoked to send out FARP Response to the remote node. Before sending the
6936 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6937 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6938 * routine is invoked to log into the remote port first.
6941 * 0 - Either the FARP Match Mode not supported or successfully processed
6944 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6945 struct lpfc_nodelist *ndlp)
6947 struct lpfc_dmabuf *pcmd;
6951 uint32_t cmd, cnt, did;
6953 icmd = &cmdiocb->iocb;
6954 did = icmd->un.elsreq64.remoteID;
6955 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6956 lp = (uint32_t *) pcmd->virt;
6960 /* FARP-REQ received from DID <did> */
6961 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6962 "0601 FARP-REQ received from DID x%x\n", did);
6963 /* We will only support match on WWPN or WWNN */
6964 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
6969 /* If this FARP command is searching for my portname */
6970 if (fp->Mflags & FARP_MATCH_PORT) {
6971 if (memcmp(&fp->RportName, &vport->fc_portname,
6972 sizeof(struct lpfc_name)) == 0)
6976 /* If this FARP command is searching for my nodename */
6977 if (fp->Mflags & FARP_MATCH_NODE) {
6978 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
6979 sizeof(struct lpfc_name)) == 0)
6984 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
6985 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
6986 /* Log back into the node before sending the FARP. */
6987 if (fp->Rflags & FARP_REQUEST_PLOGI) {
6988 ndlp->nlp_prev_state = ndlp->nlp_state;
6989 lpfc_nlp_set_state(vport, ndlp,
6990 NLP_STE_PLOGI_ISSUE);
6991 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
6994 /* Send a FARP response to that node */
6995 if (fp->Rflags & FARP_REQUEST_FARPR)
6996 lpfc_issue_els_farpr(vport, did, 0);
7003 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
7004 * @vport: pointer to a host virtual N_Port data structure.
7005 * @cmdiocb: pointer to lpfc command iocb data structure.
7006 * @ndlp: pointer to a node-list data structure.
7008 * This routine processes Fibre Channel Address Resolution Protocol
7009 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
7010 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
7011 * the FARP response request.
7014 * 0 - Successfully processed FARPR IOCB (currently always return 0)
7017 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7018 struct lpfc_nodelist *ndlp)
7020 struct lpfc_dmabuf *pcmd;
7025 icmd = &cmdiocb->iocb;
7026 did = icmd->un.elsreq64.remoteID;
7027 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7028 lp = (uint32_t *) pcmd->virt;
7031 /* FARP-RSP received from DID <did> */
7032 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7033 "0600 FARP-RSP received from DID x%x\n", did);
7034 /* ACCEPT the Farp resp request */
7035 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
7041 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
7042 * @vport: pointer to a host virtual N_Port data structure.
7043 * @cmdiocb: pointer to lpfc command iocb data structure.
7044 * @fan_ndlp: pointer to a node-list data structure.
7046 * This routine processes a Fabric Address Notification (FAN) IOCB
7047 * command received as an ELS unsolicited event. The FAN ELS command will
7048 * only be processed on a physical port (i.e., the @vport represents the
7049 * physical port). The fabric NodeName and PortName from the FAN IOCB are
7050 * compared against those in the phba data structure. If any of those is
7051 * different, the lpfc_initial_flogi() routine is invoked to initialize
7052 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
7053 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
7054 * is invoked to register login to the fabric.
7057 * 0 - Successfully processed fan iocb (currently always return 0).
7060 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7061 struct lpfc_nodelist *fan_ndlp)
7063 struct lpfc_hba *phba = vport->phba;
7067 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
7068 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
7070 /* FAN received; Fan does not have a reply sequence */
7071 if ((vport == phba->pport) &&
7072 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
7073 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
7074 sizeof(struct lpfc_name))) ||
7075 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
7076 sizeof(struct lpfc_name)))) {
7077 /* This port has switched fabrics. FLOGI is required */
7078 lpfc_issue_init_vfi(vport);
7080 /* FAN verified - skip FLOGI */
7081 vport->fc_myDID = vport->fc_prevDID;
7082 if (phba->sli_rev < LPFC_SLI_REV4)
7083 lpfc_issue_fabric_reglogin(vport);
7085 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7086 "3138 Need register VFI: (x%x/%x)\n",
7087 vport->fc_prevDID, vport->fc_myDID);
7088 lpfc_issue_reg_vfi(vport);
7096 * lpfc_els_timeout - Handler funciton to the els timer
7097 * @ptr: holder for the timer function associated data.
7099 * This routine is invoked by the ELS timer after timeout. It posts the ELS
7100 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
7101 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
7102 * up the worker thread. It is for the worker thread to invoke the routine
7103 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
7106 lpfc_els_timeout(unsigned long ptr)
7108 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
7109 struct lpfc_hba *phba = vport->phba;
7110 uint32_t tmo_posted;
7111 unsigned long iflag;
7113 spin_lock_irqsave(&vport->work_port_lock, iflag);
7114 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
7115 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
7116 vport->work_port_events |= WORKER_ELS_TMO;
7117 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
7119 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
7120 lpfc_worker_wake_up(phba);
7126 * lpfc_els_timeout_handler - Process an els timeout event
7127 * @vport: pointer to a virtual N_Port data structure.
7129 * This routine is the actual handler function that processes an ELS timeout
7130 * event. It walks the ELS ring to get and abort all the IOCBs (except the
7131 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
7132 * invoking the lpfc_sli_issue_abort_iotag() routine.
7135 lpfc_els_timeout_handler(struct lpfc_vport *vport)
7137 struct lpfc_hba *phba = vport->phba;
7138 struct lpfc_sli_ring *pring;
7139 struct lpfc_iocbq *tmp_iocb, *piocb;
7141 struct lpfc_dmabuf *pcmd;
7142 uint32_t els_command = 0;
7144 uint32_t remote_ID = 0xffffffff;
7145 LIST_HEAD(abort_list);
7148 timeout = (uint32_t)(phba->fc_ratov << 1);
7150 pring = &phba->sli.ring[LPFC_ELS_RING];
7151 if ((phba->pport->load_flag & FC_UNLOADING))
7153 spin_lock_irq(&phba->hbalock);
7154 if (phba->sli_rev == LPFC_SLI_REV4)
7155 spin_lock(&pring->ring_lock);
7157 if ((phba->pport->load_flag & FC_UNLOADING)) {
7158 if (phba->sli_rev == LPFC_SLI_REV4)
7159 spin_unlock(&pring->ring_lock);
7160 spin_unlock_irq(&phba->hbalock);
7164 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7167 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
7168 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
7169 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
7172 if (piocb->vport != vport)
7175 pcmd = (struct lpfc_dmabuf *) piocb->context2;
7177 els_command = *(uint32_t *) (pcmd->virt);
7179 if (els_command == ELS_CMD_FARP ||
7180 els_command == ELS_CMD_FARPR ||
7181 els_command == ELS_CMD_FDISC)
7184 if (piocb->drvrTimeout > 0) {
7185 if (piocb->drvrTimeout >= timeout)
7186 piocb->drvrTimeout -= timeout;
7188 piocb->drvrTimeout = 0;
7192 remote_ID = 0xffffffff;
7193 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
7194 remote_ID = cmd->un.elsreq64.remoteID;
7196 struct lpfc_nodelist *ndlp;
7197 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
7198 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
7199 remote_ID = ndlp->nlp_DID;
7201 list_add_tail(&piocb->dlist, &abort_list);
7203 if (phba->sli_rev == LPFC_SLI_REV4)
7204 spin_unlock(&pring->ring_lock);
7205 spin_unlock_irq(&phba->hbalock);
7207 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7209 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7210 "0127 ELS timeout Data: x%x x%x x%x "
7211 "x%x\n", els_command,
7212 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
7213 spin_lock_irq(&phba->hbalock);
7214 list_del_init(&piocb->dlist);
7215 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7216 spin_unlock_irq(&phba->hbalock);
7219 if (!list_empty(&phba->sli.ring[LPFC_ELS_RING].txcmplq))
7220 if (!(phba->pport->load_flag & FC_UNLOADING))
7221 mod_timer(&vport->els_tmofunc,
7222 jiffies + msecs_to_jiffies(1000 * timeout));
7226 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
7227 * @vport: pointer to a host virtual N_Port data structure.
7229 * This routine is used to clean up all the outstanding ELS commands on a
7230 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
7231 * routine. After that, it walks the ELS transmit queue to remove all the
7232 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
7233 * the IOCBs with a non-NULL completion callback function, the callback
7234 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7235 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
7236 * callback function, the IOCB will simply be released. Finally, it walks
7237 * the ELS transmit completion queue to issue an abort IOCB to any transmit
7238 * completion queue IOCB that is associated with the @vport and is not
7239 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
7240 * part of the discovery state machine) out to HBA by invoking the
7241 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
7242 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
7243 * the IOCBs are aborted when this function returns.
7246 lpfc_els_flush_cmd(struct lpfc_vport *vport)
7248 LIST_HEAD(abort_list);
7249 struct lpfc_hba *phba = vport->phba;
7250 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7251 struct lpfc_iocbq *tmp_iocb, *piocb;
7254 lpfc_fabric_abort_vport(vport);
7256 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
7257 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
7258 * ultimately grabs the ring_lock, the driver must splice the list into
7259 * a working list and release the locks before calling the abort.
7261 spin_lock_irq(&phba->hbalock);
7262 if (phba->sli_rev == LPFC_SLI_REV4)
7263 spin_lock(&pring->ring_lock);
7265 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7266 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
7269 if (piocb->vport != vport)
7271 list_add_tail(&piocb->dlist, &abort_list);
7273 if (phba->sli_rev == LPFC_SLI_REV4)
7274 spin_unlock(&pring->ring_lock);
7275 spin_unlock_irq(&phba->hbalock);
7276 /* Abort each iocb on the aborted list and remove the dlist links. */
7277 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7278 spin_lock_irq(&phba->hbalock);
7279 list_del_init(&piocb->dlist);
7280 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7281 spin_unlock_irq(&phba->hbalock);
7283 if (!list_empty(&abort_list))
7284 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7285 "3387 abort list for txq not empty\n");
7286 INIT_LIST_HEAD(&abort_list);
7288 spin_lock_irq(&phba->hbalock);
7289 if (phba->sli_rev == LPFC_SLI_REV4)
7290 spin_lock(&pring->ring_lock);
7292 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
7295 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
7299 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7300 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
7301 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
7302 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7303 cmd->ulpCommand == CMD_ABORT_XRI_CN)
7306 if (piocb->vport != vport)
7309 list_del_init(&piocb->list);
7310 list_add_tail(&piocb->list, &abort_list);
7312 if (phba->sli_rev == LPFC_SLI_REV4)
7313 spin_unlock(&pring->ring_lock);
7314 spin_unlock_irq(&phba->hbalock);
7316 /* Cancell all the IOCBs from the completions list */
7317 lpfc_sli_cancel_iocbs(phba, &abort_list,
7318 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
7324 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7325 * @phba: pointer to lpfc hba data structure.
7327 * This routine is used to clean up all the outstanding ELS commands on a
7328 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7329 * routine. After that, it walks the ELS transmit queue to remove all the
7330 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7331 * the IOCBs with the completion callback function associated, the callback
7332 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7333 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7334 * callback function associated, the IOCB will simply be released. Finally,
7335 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7336 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7337 * management plane IOCBs that are not part of the discovery state machine)
7338 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7341 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
7343 struct lpfc_vport *vport;
7344 list_for_each_entry(vport, &phba->port_list, listentry)
7345 lpfc_els_flush_cmd(vport);
7351 * lpfc_send_els_failure_event - Posts an ELS command failure event
7352 * @phba: Pointer to hba context object.
7353 * @cmdiocbp: Pointer to command iocb which reported error.
7354 * @rspiocbp: Pointer to response iocb which reported error.
7356 * This function sends an event when there is an ELS command
7360 lpfc_send_els_failure_event(struct lpfc_hba *phba,
7361 struct lpfc_iocbq *cmdiocbp,
7362 struct lpfc_iocbq *rspiocbp)
7364 struct lpfc_vport *vport = cmdiocbp->vport;
7365 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7366 struct lpfc_lsrjt_event lsrjt_event;
7367 struct lpfc_fabric_event_header fabric_event;
7369 struct lpfc_nodelist *ndlp;
7372 ndlp = cmdiocbp->context1;
7373 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
7376 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
7377 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
7378 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
7379 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
7380 sizeof(struct lpfc_name));
7381 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
7382 sizeof(struct lpfc_name));
7383 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7384 cmdiocbp->context2)->virt);
7385 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
7386 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
7387 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
7388 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
7389 fc_host_post_vendor_event(shost,
7390 fc_get_event_number(),
7391 sizeof(lsrjt_event),
7392 (char *)&lsrjt_event,
7396 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
7397 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
7398 fabric_event.event_type = FC_REG_FABRIC_EVENT;
7399 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
7400 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
7402 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
7403 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
7404 sizeof(struct lpfc_name));
7405 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
7406 sizeof(struct lpfc_name));
7407 fc_host_post_vendor_event(shost,
7408 fc_get_event_number(),
7409 sizeof(fabric_event),
7410 (char *)&fabric_event,
7418 * lpfc_send_els_event - Posts unsolicited els event
7419 * @vport: Pointer to vport object.
7420 * @ndlp: Pointer FC node object.
7421 * @cmd: ELS command code.
7423 * This function posts an event when there is an incoming
7424 * unsolicited ELS command.
7427 lpfc_send_els_event(struct lpfc_vport *vport,
7428 struct lpfc_nodelist *ndlp,
7431 struct lpfc_els_event_header *els_data = NULL;
7432 struct lpfc_logo_event *logo_data = NULL;
7433 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7435 if (*payload == ELS_CMD_LOGO) {
7436 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
7438 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7439 "0148 Failed to allocate memory "
7440 "for LOGO event\n");
7443 els_data = &logo_data->header;
7445 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
7448 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7449 "0149 Failed to allocate memory "
7454 els_data->event_type = FC_REG_ELS_EVENT;
7457 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
7460 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
7463 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
7466 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
7467 /* Copy the WWPN in the LOGO payload */
7468 memcpy(logo_data->logo_wwpn, &payload[2],
7469 sizeof(struct lpfc_name));
7475 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
7476 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
7477 if (*payload == ELS_CMD_LOGO) {
7478 fc_host_post_vendor_event(shost,
7479 fc_get_event_number(),
7480 sizeof(struct lpfc_logo_event),
7485 fc_host_post_vendor_event(shost,
7486 fc_get_event_number(),
7487 sizeof(struct lpfc_els_event_header),
7498 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7499 * @phba: pointer to lpfc hba data structure.
7500 * @pring: pointer to a SLI ring.
7501 * @vport: pointer to a host virtual N_Port data structure.
7502 * @elsiocb: pointer to lpfc els command iocb data structure.
7504 * This routine is used for processing the IOCB associated with a unsolicited
7505 * event. It first determines whether there is an existing ndlp that matches
7506 * the DID from the unsolicited IOCB. If not, it will create a new one with
7507 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7508 * IOCB is then used to invoke the proper routine and to set up proper state
7509 * of the discovery state machine.
7512 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7513 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
7515 struct Scsi_Host *shost;
7516 struct lpfc_nodelist *ndlp;
7519 uint32_t cmd, did, newnode;
7520 uint8_t rjt_exp, rjt_err = 0;
7521 IOCB_t *icmd = &elsiocb->iocb;
7523 if (!vport || !(elsiocb->context2))
7527 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
7529 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
7530 lpfc_post_buffer(phba, pring, 1);
7532 did = icmd->un.rcvels.remoteID;
7533 if (icmd->ulpStatus) {
7534 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7535 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7536 icmd->ulpStatus, icmd->un.ulpWord[4], did);
7540 /* Check to see if link went down during discovery */
7541 if (lpfc_els_chk_latt(vport))
7544 /* Ignore traffic received during vport shutdown. */
7545 if (vport->load_flag & FC_UNLOADING)
7548 /* If NPort discovery is delayed drop incoming ELS */
7549 if ((vport->fc_flag & FC_DISC_DELAYED) &&
7550 (cmd != ELS_CMD_PLOGI))
7553 ndlp = lpfc_findnode_did(vport, did);
7555 /* Cannot find existing Fabric ndlp, so allocate a new one */
7556 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7560 lpfc_nlp_init(vport, ndlp, did);
7561 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7563 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7564 ndlp->nlp_type |= NLP_FABRIC;
7565 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7566 ndlp = lpfc_enable_node(vport, ndlp,
7567 NLP_STE_UNUSED_NODE);
7570 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7572 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7573 ndlp->nlp_type |= NLP_FABRIC;
7574 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
7575 /* This is similar to the new node path */
7576 ndlp = lpfc_nlp_get(ndlp);
7579 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7583 phba->fc_stat.elsRcvFrame++;
7586 * Do not process any unsolicited ELS commands
7587 * if the ndlp is in DEV_LOSS
7589 shost = lpfc_shost_from_vport(vport);
7590 spin_lock_irq(shost->host_lock);
7591 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
7592 spin_unlock_irq(shost->host_lock);
7595 spin_unlock_irq(shost->host_lock);
7597 elsiocb->context1 = lpfc_nlp_get(ndlp);
7598 elsiocb->vport = vport;
7600 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
7601 cmd &= ELS_CMD_MASK;
7603 /* ELS command <elsCmd> received from NPORT <did> */
7604 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7605 "0112 ELS command x%x received from NPORT x%x "
7606 "Data: x%x x%x x%x x%x\n",
7607 cmd, did, vport->port_state, vport->fc_flag,
7608 vport->fc_myDID, vport->fc_prevDID);
7610 /* reject till our FLOGI completes */
7611 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
7612 (cmd != ELS_CMD_FLOGI)) {
7613 rjt_err = LSRJT_LOGICAL_BSY;
7614 rjt_exp = LSEXP_NOTHING_MORE;
7620 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7621 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7622 did, vport->port_state, ndlp->nlp_flag);
7624 phba->fc_stat.elsRcvPLOGI++;
7625 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
7626 if (phba->sli_rev == LPFC_SLI_REV4 &&
7627 (phba->pport->fc_flag & FC_PT2PT)) {
7628 vport->fc_prevDID = vport->fc_myDID;
7629 /* Our DID needs to be updated before registering
7630 * the vfi. This is done in lpfc_rcv_plogi but
7631 * that is called after the reg_vfi.
7633 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
7634 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7635 "3312 Remote port assigned DID x%x "
7636 "%x\n", vport->fc_myDID,
7640 lpfc_send_els_event(vport, ndlp, payload);
7642 /* If Nport discovery is delayed, reject PLOGIs */
7643 if (vport->fc_flag & FC_DISC_DELAYED) {
7644 rjt_err = LSRJT_UNABLE_TPC;
7645 rjt_exp = LSEXP_NOTHING_MORE;
7649 if (vport->port_state < LPFC_DISC_AUTH) {
7650 if (!(phba->pport->fc_flag & FC_PT2PT) ||
7651 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
7652 rjt_err = LSRJT_UNABLE_TPC;
7653 rjt_exp = LSEXP_NOTHING_MORE;
7658 spin_lock_irq(shost->host_lock);
7659 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
7660 spin_unlock_irq(shost->host_lock);
7662 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7667 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7668 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7669 did, vport->port_state, ndlp->nlp_flag);
7671 phba->fc_stat.elsRcvFLOGI++;
7672 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
7677 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7678 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7679 did, vport->port_state, ndlp->nlp_flag);
7681 phba->fc_stat.elsRcvLOGO++;
7682 lpfc_send_els_event(vport, ndlp, payload);
7683 if (vport->port_state < LPFC_DISC_AUTH) {
7684 rjt_err = LSRJT_UNABLE_TPC;
7685 rjt_exp = LSEXP_NOTHING_MORE;
7688 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
7691 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7692 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7693 did, vport->port_state, ndlp->nlp_flag);
7695 phba->fc_stat.elsRcvPRLO++;
7696 lpfc_send_els_event(vport, ndlp, payload);
7697 if (vport->port_state < LPFC_DISC_AUTH) {
7698 rjt_err = LSRJT_UNABLE_TPC;
7699 rjt_exp = LSEXP_NOTHING_MORE;
7702 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
7705 phba->fc_stat.elsRcvLCB++;
7706 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
7709 phba->fc_stat.elsRcvRDP++;
7710 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
7713 phba->fc_stat.elsRcvRSCN++;
7714 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
7719 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7720 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7721 did, vport->port_state, ndlp->nlp_flag);
7723 lpfc_send_els_event(vport, ndlp, payload);
7724 phba->fc_stat.elsRcvADISC++;
7725 if (vport->port_state < LPFC_DISC_AUTH) {
7726 rjt_err = LSRJT_UNABLE_TPC;
7727 rjt_exp = LSEXP_NOTHING_MORE;
7730 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7734 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7735 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7736 did, vport->port_state, ndlp->nlp_flag);
7738 phba->fc_stat.elsRcvPDISC++;
7739 if (vport->port_state < LPFC_DISC_AUTH) {
7740 rjt_err = LSRJT_UNABLE_TPC;
7741 rjt_exp = LSEXP_NOTHING_MORE;
7744 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7748 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7749 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7750 did, vport->port_state, ndlp->nlp_flag);
7752 phba->fc_stat.elsRcvFARPR++;
7753 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
7756 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7757 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7758 did, vport->port_state, ndlp->nlp_flag);
7760 phba->fc_stat.elsRcvFARP++;
7761 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
7764 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7765 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7766 did, vport->port_state, ndlp->nlp_flag);
7768 phba->fc_stat.elsRcvFAN++;
7769 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
7772 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7773 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7774 did, vport->port_state, ndlp->nlp_flag);
7776 phba->fc_stat.elsRcvPRLI++;
7777 if (vport->port_state < LPFC_DISC_AUTH) {
7778 rjt_err = LSRJT_UNABLE_TPC;
7779 rjt_exp = LSEXP_NOTHING_MORE;
7782 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
7785 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7786 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7787 did, vport->port_state, ndlp->nlp_flag);
7789 phba->fc_stat.elsRcvLIRR++;
7790 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
7795 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7796 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7797 did, vport->port_state, ndlp->nlp_flag);
7799 phba->fc_stat.elsRcvRLS++;
7800 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
7805 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7806 "RCV RPS: did:x%x/ste:x%x flg:x%x",
7807 did, vport->port_state, ndlp->nlp_flag);
7809 phba->fc_stat.elsRcvRPS++;
7810 lpfc_els_rcv_rps(vport, elsiocb, ndlp);
7815 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7816 "RCV RPL: did:x%x/ste:x%x flg:x%x",
7817 did, vport->port_state, ndlp->nlp_flag);
7819 phba->fc_stat.elsRcvRPL++;
7820 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
7825 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7826 "RCV RNID: did:x%x/ste:x%x flg:x%x",
7827 did, vport->port_state, ndlp->nlp_flag);
7829 phba->fc_stat.elsRcvRNID++;
7830 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
7835 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7836 "RCV RTV: did:x%x/ste:x%x flg:x%x",
7837 did, vport->port_state, ndlp->nlp_flag);
7838 phba->fc_stat.elsRcvRTV++;
7839 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
7844 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7845 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
7846 did, vport->port_state, ndlp->nlp_flag);
7848 phba->fc_stat.elsRcvRRQ++;
7849 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
7854 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7855 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
7856 did, vport->port_state, ndlp->nlp_flag);
7858 phba->fc_stat.elsRcvECHO++;
7859 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
7864 /* receive this due to exchange closed */
7865 rjt_err = LSRJT_UNABLE_TPC;
7866 rjt_exp = LSEXP_INVALID_OX_RX;
7869 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7870 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
7871 cmd, did, vport->port_state);
7873 /* Unsupported ELS command, reject */
7874 rjt_err = LSRJT_CMD_UNSUPPORTED;
7875 rjt_exp = LSEXP_NOTHING_MORE;
7877 /* Unknown ELS command <elsCmd> received from NPORT <did> */
7878 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7879 "0115 Unknown ELS command x%x "
7880 "received from NPORT x%x\n", cmd, did);
7887 /* check if need to LS_RJT received ELS cmd */
7889 memset(&stat, 0, sizeof(stat));
7890 stat.un.b.lsRjtRsnCode = rjt_err;
7891 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
7892 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
7896 lpfc_nlp_put(elsiocb->context1);
7897 elsiocb->context1 = NULL;
7901 if (vport && !(vport->load_flag & FC_UNLOADING))
7902 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7903 "0111 Dropping received ELS cmd "
7904 "Data: x%x x%x x%x\n",
7905 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
7906 phba->fc_stat.elsRcvDrop++;
7910 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7911 * @phba: pointer to lpfc hba data structure.
7912 * @pring: pointer to a SLI ring.
7913 * @elsiocb: pointer to lpfc els iocb data structure.
7915 * This routine is used to process an unsolicited event received from a SLI
7916 * (Service Level Interface) ring. The actual processing of the data buffer
7917 * associated with the unsolicited event is done by invoking the routine
7918 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7919 * SLI ring on which the unsolicited event was received.
7922 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7923 struct lpfc_iocbq *elsiocb)
7925 struct lpfc_vport *vport = phba->pport;
7926 IOCB_t *icmd = &elsiocb->iocb;
7928 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
7929 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
7931 elsiocb->context1 = NULL;
7932 elsiocb->context2 = NULL;
7933 elsiocb->context3 = NULL;
7935 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
7936 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
7937 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
7938 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
7939 IOERR_RCV_BUFFER_WAITING) {
7940 phba->fc_stat.NoRcvBuf++;
7941 /* Not enough posted buffers; Try posting more buffers */
7942 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
7943 lpfc_post_buffer(phba, pring, 0);
7947 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
7948 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
7949 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
7950 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
7951 vport = phba->pport;
7953 vport = lpfc_find_vport_by_vpid(phba,
7954 icmd->unsli3.rcvsli3.vpi);
7957 /* If there are no BDEs associated
7958 * with this IOCB, there is nothing to do.
7960 if (icmd->ulpBdeCount == 0)
7963 /* type of ELS cmd is first 32bit word
7966 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
7967 elsiocb->context2 = bdeBuf1;
7969 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
7970 icmd->un.cont64[0].addrLow);
7971 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
7975 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7977 * The different unsolicited event handlers would tell us
7978 * if they are done with "mp" by setting context2 to NULL.
7980 if (elsiocb->context2) {
7981 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
7982 elsiocb->context2 = NULL;
7985 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7986 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
7987 icmd->ulpBdeCount == 2) {
7988 elsiocb->context2 = bdeBuf2;
7989 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7990 /* free mp if we are done with it */
7991 if (elsiocb->context2) {
7992 lpfc_in_buf_free(phba, elsiocb->context2);
7993 elsiocb->context2 = NULL;
7999 lpfc_start_fdmi(struct lpfc_vport *vport)
8001 struct lpfc_hba *phba = vport->phba;
8002 struct lpfc_nodelist *ndlp;
8004 /* If this is the first time, allocate an ndlp and initialize
8005 * it. Otherwise, make sure the node is enabled and then do the
8008 ndlp = lpfc_findnode_did(vport, FDMI_DID);
8010 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
8012 lpfc_nlp_init(vport, ndlp, FDMI_DID);
8013 ndlp->nlp_type |= NLP_FABRIC;
8018 if (!NLP_CHK_NODE_ACT(ndlp))
8019 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
8022 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8023 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
8028 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
8029 * @phba: pointer to lpfc hba data structure.
8030 * @vport: pointer to a virtual N_Port data structure.
8032 * This routine issues a Port Login (PLOGI) to the Name Server with
8033 * State Change Request (SCR) for a @vport. This routine will create an
8034 * ndlp for the Name Server associated to the @vport if such node does
8035 * not already exist. The PLOGI to Name Server is issued by invoking the
8036 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
8037 * (FDMI) is configured to the @vport, a FDMI node will be created and
8038 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
8041 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
8043 struct lpfc_nodelist *ndlp;
8044 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8047 * If lpfc_delay_discovery parameter is set and the clean address
8048 * bit is cleared and fc fabric parameters chenged, delay FC NPort
8051 spin_lock_irq(shost->host_lock);
8052 if (vport->fc_flag & FC_DISC_DELAYED) {
8053 spin_unlock_irq(shost->host_lock);
8054 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
8055 "3334 Delay fc port discovery for %d seconds\n",
8057 mod_timer(&vport->delayed_disc_tmo,
8058 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
8061 spin_unlock_irq(shost->host_lock);
8063 ndlp = lpfc_findnode_did(vport, NameServer_DID);
8065 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
8067 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8068 lpfc_disc_start(vport);
8071 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8072 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8073 "0251 NameServer login: no memory\n");
8076 lpfc_nlp_init(vport, ndlp, NameServer_DID);
8077 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
8078 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
8080 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8081 lpfc_disc_start(vport);
8084 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8085 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8086 "0348 NameServer login: node freed\n");
8090 ndlp->nlp_type |= NLP_FABRIC;
8092 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8094 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
8095 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8096 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8097 "0252 Cannot issue NameServer login\n");
8101 if ((phba->cfg_enable_SmartSAN ||
8102 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
8103 (vport->load_flag & FC_ALLOW_FDMI))
8104 lpfc_start_fdmi(vport);
8108 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
8109 * @phba: pointer to lpfc hba data structure.
8110 * @pmb: pointer to the driver internal queue element for mailbox command.
8112 * This routine is the completion callback function to register new vport
8113 * mailbox command. If the new vport mailbox command completes successfully,
8114 * the fabric registration login shall be performed on physical port (the
8115 * new vport created is actually a physical port, with VPI 0) or the port
8116 * login to Name Server for State Change Request (SCR) will be performed
8117 * on virtual port (real virtual port, with VPI greater than 0).
8120 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
8122 struct lpfc_vport *vport = pmb->vport;
8123 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8124 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
8125 MAILBOX_t *mb = &pmb->u.mb;
8128 spin_lock_irq(shost->host_lock);
8129 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8130 spin_unlock_irq(shost->host_lock);
8132 if (mb->mbxStatus) {
8133 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8134 "0915 Register VPI failed : Status: x%x"
8135 " upd bit: x%x \n", mb->mbxStatus,
8136 mb->un.varRegVpi.upd);
8137 if (phba->sli_rev == LPFC_SLI_REV4 &&
8138 mb->un.varRegVpi.upd)
8139 goto mbox_err_exit ;
8141 switch (mb->mbxStatus) {
8142 case 0x11: /* unsupported feature */
8143 case 0x9603: /* max_vpi exceeded */
8144 case 0x9602: /* Link event since CLEAR_LA */
8145 /* giving up on vport registration */
8146 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8147 spin_lock_irq(shost->host_lock);
8148 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
8149 spin_unlock_irq(shost->host_lock);
8150 lpfc_can_disctmo(vport);
8152 /* If reg_vpi fail with invalid VPI status, re-init VPI */
8154 spin_lock_irq(shost->host_lock);
8155 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8156 spin_unlock_irq(shost->host_lock);
8157 lpfc_init_vpi(phba, pmb, vport->vpi);
8159 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
8160 rc = lpfc_sli_issue_mbox(phba, pmb,
8162 if (rc == MBX_NOT_FINISHED) {
8163 lpfc_printf_vlog(vport,
8165 "2732 Failed to issue INIT_VPI"
8166 " mailbox command\n");
8173 /* Try to recover from this error */
8174 if (phba->sli_rev == LPFC_SLI_REV4)
8175 lpfc_sli4_unreg_all_rpis(vport);
8176 lpfc_mbx_unreg_vpi(vport);
8177 spin_lock_irq(shost->host_lock);
8178 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8179 spin_unlock_irq(shost->host_lock);
8180 if (vport->port_type == LPFC_PHYSICAL_PORT
8181 && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
8182 lpfc_issue_init_vfi(vport);
8184 lpfc_initial_fdisc(vport);
8188 spin_lock_irq(shost->host_lock);
8189 vport->vpi_state |= LPFC_VPI_REGISTERED;
8190 spin_unlock_irq(shost->host_lock);
8191 if (vport == phba->pport) {
8192 if (phba->sli_rev < LPFC_SLI_REV4)
8193 lpfc_issue_fabric_reglogin(vport);
8196 * If the physical port is instantiated using
8197 * FDISC, do not start vport discovery.
8199 if (vport->port_state != LPFC_FDISC)
8200 lpfc_start_fdiscs(phba);
8201 lpfc_do_scr_ns_plogi(phba, vport);
8204 lpfc_do_scr_ns_plogi(phba, vport);
8207 /* Now, we decrement the ndlp reference count held for this
8212 mempool_free(pmb, phba->mbox_mem_pool);
8217 * lpfc_register_new_vport - Register a new vport with a HBA
8218 * @phba: pointer to lpfc hba data structure.
8219 * @vport: pointer to a host virtual N_Port data structure.
8220 * @ndlp: pointer to a node-list data structure.
8222 * This routine registers the @vport as a new virtual port with a HBA.
8223 * It is done through a registering vpi mailbox command.
8226 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
8227 struct lpfc_nodelist *ndlp)
8229 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8232 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8234 lpfc_reg_vpi(vport, mbox);
8235 mbox->vport = vport;
8236 mbox->context2 = lpfc_nlp_get(ndlp);
8237 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
8238 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
8239 == MBX_NOT_FINISHED) {
8240 /* mailbox command not success, decrement ndlp
8241 * reference count for this command
8244 mempool_free(mbox, phba->mbox_mem_pool);
8246 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8247 "0253 Register VPI: Can't send mbox\n");
8251 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8252 "0254 Register VPI: no memory\n");
8258 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8259 spin_lock_irq(shost->host_lock);
8260 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8261 spin_unlock_irq(shost->host_lock);
8266 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
8267 * @phba: pointer to lpfc hba data structure.
8269 * This routine cancels the retry delay timers to all the vports.
8272 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
8274 struct lpfc_vport **vports;
8275 struct lpfc_nodelist *ndlp;
8276 uint32_t link_state;
8279 /* Treat this failure as linkdown for all vports */
8280 link_state = phba->link_state;
8281 lpfc_linkdown(phba);
8282 phba->link_state = link_state;
8284 vports = lpfc_create_vport_work_array(phba);
8287 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8288 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
8290 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
8291 lpfc_els_flush_cmd(vports[i]);
8293 lpfc_destroy_vport_work_array(phba, vports);
8298 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8299 * @phba: pointer to lpfc hba data structure.
8301 * This routine abort all pending discovery commands and
8302 * start a timer to retry FLOGI for the physical port
8306 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
8308 struct lpfc_nodelist *ndlp;
8309 struct Scsi_Host *shost;
8311 /* Cancel the all vports retry delay retry timers */
8312 lpfc_cancel_all_vport_retry_delay_timer(phba);
8314 /* If fabric require FLOGI, then re-instantiate physical login */
8315 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
8319 shost = lpfc_shost_from_vport(phba->pport);
8320 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
8321 spin_lock_irq(shost->host_lock);
8322 ndlp->nlp_flag |= NLP_DELAY_TMO;
8323 spin_unlock_irq(shost->host_lock);
8324 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
8325 phba->pport->port_state = LPFC_FLOGI;
8330 * lpfc_fabric_login_reqd - Check if FLOGI required.
8331 * @phba: pointer to lpfc hba data structure.
8332 * @cmdiocb: pointer to FDISC command iocb.
8333 * @rspiocb: pointer to FDISC response iocb.
8335 * This routine checks if a FLOGI is reguired for FDISC
8339 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
8340 struct lpfc_iocbq *cmdiocb,
8341 struct lpfc_iocbq *rspiocb)
8344 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
8345 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
8352 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8353 * @phba: pointer to lpfc hba data structure.
8354 * @cmdiocb: pointer to lpfc command iocb data structure.
8355 * @rspiocb: pointer to lpfc response iocb data structure.
8357 * This routine is the completion callback function to a Fabric Discover
8358 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8359 * single threaded, each FDISC completion callback function will reset
8360 * the discovery timer for all vports such that the timers will not get
8361 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8362 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8363 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8364 * assigned to the vport has been changed with the completion of the FDISC
8365 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8366 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8367 * routine is invoked to register new vport with the HBA. Otherwise, the
8368 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8369 * Server for State Change Request (SCR).
8372 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8373 struct lpfc_iocbq *rspiocb)
8375 struct lpfc_vport *vport = cmdiocb->vport;
8376 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8377 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
8378 struct lpfc_nodelist *np;
8379 struct lpfc_nodelist *next_np;
8380 IOCB_t *irsp = &rspiocb->iocb;
8381 struct lpfc_iocbq *piocb;
8382 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
8383 struct serv_parm *sp;
8384 uint8_t fabric_param_changed;
8386 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8387 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8388 irsp->ulpStatus, irsp->un.ulpWord[4],
8390 /* Since all FDISCs are being single threaded, we
8391 * must reset the discovery timer for ALL vports
8392 * waiting to send FDISC when one completes.
8394 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
8395 lpfc_set_disctmo(piocb->vport);
8398 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8399 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8400 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
8402 if (irsp->ulpStatus) {
8404 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
8405 lpfc_retry_pport_discovery(phba);
8409 /* Check for retry */
8410 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
8413 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8414 "0126 FDISC failed. (x%x/x%x)\n",
8415 irsp->ulpStatus, irsp->un.ulpWord[4]);
8418 spin_lock_irq(shost->host_lock);
8419 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
8420 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
8421 vport->fc_flag |= FC_FABRIC;
8422 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
8423 vport->fc_flag |= FC_PUBLIC_LOOP;
8424 spin_unlock_irq(shost->host_lock);
8426 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
8427 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
8428 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
8431 sp = prsp->virt + sizeof(uint32_t);
8432 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
8433 memcpy(&vport->fabric_portname, &sp->portName,
8434 sizeof(struct lpfc_name));
8435 memcpy(&vport->fabric_nodename, &sp->nodeName,
8436 sizeof(struct lpfc_name));
8437 if (fabric_param_changed &&
8438 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8439 /* If our NportID changed, we need to ensure all
8440 * remaining NPORTs get unreg_login'ed so we can
8443 list_for_each_entry_safe(np, next_np,
8444 &vport->fc_nodes, nlp_listp) {
8445 if (!NLP_CHK_NODE_ACT(ndlp) ||
8446 (np->nlp_state != NLP_STE_NPR_NODE) ||
8447 !(np->nlp_flag & NLP_NPR_ADISC))
8449 spin_lock_irq(shost->host_lock);
8450 np->nlp_flag &= ~NLP_NPR_ADISC;
8451 spin_unlock_irq(shost->host_lock);
8452 lpfc_unreg_rpi(vport, np);
8454 lpfc_cleanup_pending_mbox(vport);
8456 if (phba->sli_rev == LPFC_SLI_REV4)
8457 lpfc_sli4_unreg_all_rpis(vport);
8459 lpfc_mbx_unreg_vpi(vport);
8460 spin_lock_irq(shost->host_lock);
8461 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8462 if (phba->sli_rev == LPFC_SLI_REV4)
8463 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
8465 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
8466 spin_unlock_irq(shost->host_lock);
8467 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
8468 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8470 * Driver needs to re-reg VPI in order for f/w
8471 * to update the MAC address.
8473 lpfc_register_new_vport(phba, vport, ndlp);
8477 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
8478 lpfc_issue_init_vpi(vport);
8479 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
8480 lpfc_register_new_vport(phba, vport, ndlp);
8482 lpfc_do_scr_ns_plogi(phba, vport);
8485 if (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)
8486 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8487 /* Cancel discovery timer */
8488 lpfc_can_disctmo(vport);
8491 lpfc_els_free_iocb(phba, cmdiocb);
8495 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8496 * @vport: pointer to a virtual N_Port data structure.
8497 * @ndlp: pointer to a node-list data structure.
8498 * @retry: number of retries to the command IOCB.
8500 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8501 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8502 * routine to issue the IOCB, which makes sure only one outstanding fabric
8503 * IOCB will be sent off HBA at any given time.
8505 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8506 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8507 * will be stored into the context1 field of the IOCB for the completion
8508 * callback function to the FDISC ELS command.
8511 * 0 - Successfully issued fdisc iocb command
8512 * 1 - Failed to issue fdisc iocb command
8515 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
8518 struct lpfc_hba *phba = vport->phba;
8520 struct lpfc_iocbq *elsiocb;
8521 struct serv_parm *sp;
8524 int did = ndlp->nlp_DID;
8527 vport->port_state = LPFC_FDISC;
8528 vport->fc_myDID = 0;
8529 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
8530 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
8533 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8534 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8535 "0255 Issue FDISC: no IOCB\n");
8539 icmd = &elsiocb->iocb;
8540 icmd->un.elsreq64.myID = 0;
8541 icmd->un.elsreq64.fl = 1;
8544 * SLI3 ports require a different context type value than SLI4.
8545 * Catch SLI3 ports here and override the prep.
8547 if (phba->sli_rev == LPFC_SLI_REV3) {
8552 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8553 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
8554 pcmd += sizeof(uint32_t); /* CSP Word 1 */
8555 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
8556 sp = (struct serv_parm *) pcmd;
8557 /* Setup CSPs accordingly for Fabric */
8558 sp->cmn.e_d_tov = 0;
8559 sp->cmn.w2.r_a_tov = 0;
8560 sp->cmn.virtual_fabric_support = 0;
8561 sp->cls1.classValid = 0;
8562 sp->cls2.seqDelivery = 1;
8563 sp->cls3.seqDelivery = 1;
8565 pcmd += sizeof(uint32_t); /* CSP Word 2 */
8566 pcmd += sizeof(uint32_t); /* CSP Word 3 */
8567 pcmd += sizeof(uint32_t); /* CSP Word 4 */
8568 pcmd += sizeof(uint32_t); /* Port Name */
8569 memcpy(pcmd, &vport->fc_portname, 8);
8570 pcmd += sizeof(uint32_t); /* Node Name */
8571 pcmd += sizeof(uint32_t); /* Node Name */
8572 memcpy(pcmd, &vport->fc_nodename, 8);
8574 lpfc_set_disctmo(vport);
8576 phba->fc_stat.elsXmitFDISC++;
8577 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
8579 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8580 "Issue FDISC: did:x%x",
8583 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
8584 if (rc == IOCB_ERROR) {
8585 lpfc_els_free_iocb(phba, elsiocb);
8586 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8587 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8588 "0256 Issue FDISC: Cannot send IOCB\n");
8591 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
8596 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8597 * @phba: pointer to lpfc hba data structure.
8598 * @cmdiocb: pointer to lpfc command iocb data structure.
8599 * @rspiocb: pointer to lpfc response iocb data structure.
8601 * This routine is the completion callback function to the issuing of a LOGO
8602 * ELS command off a vport. It frees the command IOCB and then decrement the
8603 * reference count held on ndlp for this completion function, indicating that
8604 * the reference to the ndlp is no long needed. Note that the
8605 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8606 * callback function and an additional explicit ndlp reference decrementation
8607 * will trigger the actual release of the ndlp.
8610 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8611 struct lpfc_iocbq *rspiocb)
8613 struct lpfc_vport *vport = cmdiocb->vport;
8615 struct lpfc_nodelist *ndlp;
8616 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8618 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
8619 irsp = &rspiocb->iocb;
8620 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8621 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8622 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
8624 lpfc_els_free_iocb(phba, cmdiocb);
8625 vport->unreg_vpi_cmpl = VPORT_ERROR;
8627 /* Trigger the release of the ndlp after logo */
8630 /* NPIV LOGO completes to NPort <nlp_DID> */
8631 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8632 "2928 NPIV LOGO completes to NPort x%x "
8633 "Data: x%x x%x x%x x%x\n",
8634 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
8635 irsp->ulpTimeout, vport->num_disc_nodes);
8637 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
8638 spin_lock_irq(shost->host_lock);
8639 vport->fc_flag &= ~FC_NDISC_ACTIVE;
8640 vport->fc_flag &= ~FC_FABRIC;
8641 spin_unlock_irq(shost->host_lock);
8642 lpfc_can_disctmo(vport);
8647 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8648 * @vport: pointer to a virtual N_Port data structure.
8649 * @ndlp: pointer to a node-list data structure.
8651 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8653 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8654 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8655 * will be stored into the context1 field of the IOCB for the completion
8656 * callback function to the LOGO ELS command.
8659 * 0 - Successfully issued logo off the @vport
8660 * 1 - Failed to issue logo off the @vport
8663 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
8665 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8666 struct lpfc_hba *phba = vport->phba;
8667 struct lpfc_iocbq *elsiocb;
8671 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
8672 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
8677 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8678 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
8679 pcmd += sizeof(uint32_t);
8681 /* Fill in LOGO payload */
8682 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
8683 pcmd += sizeof(uint32_t);
8684 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
8686 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8687 "Issue LOGO npiv did:x%x flg:x%x",
8688 ndlp->nlp_DID, ndlp->nlp_flag, 0);
8690 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
8691 spin_lock_irq(shost->host_lock);
8692 ndlp->nlp_flag |= NLP_LOGO_SND;
8693 spin_unlock_irq(shost->host_lock);
8694 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
8696 spin_lock_irq(shost->host_lock);
8697 ndlp->nlp_flag &= ~NLP_LOGO_SND;
8698 spin_unlock_irq(shost->host_lock);
8699 lpfc_els_free_iocb(phba, elsiocb);
8706 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8707 * @ptr: holder for the timer function associated data.
8709 * This routine is invoked by the fabric iocb block timer after
8710 * timeout. It posts the fabric iocb block timeout event by setting the
8711 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8712 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8713 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8714 * posted event WORKER_FABRIC_BLOCK_TMO.
8717 lpfc_fabric_block_timeout(unsigned long ptr)
8719 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
8720 unsigned long iflags;
8721 uint32_t tmo_posted;
8723 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8724 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
8726 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
8727 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8730 lpfc_worker_wake_up(phba);
8735 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8736 * @phba: pointer to lpfc hba data structure.
8738 * This routine issues one fabric iocb from the driver internal list to
8739 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8740 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8741 * remove one pending fabric iocb from the driver internal list and invokes
8742 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8745 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
8747 struct lpfc_iocbq *iocb;
8748 unsigned long iflags;
8754 spin_lock_irqsave(&phba->hbalock, iflags);
8755 /* Post any pending iocb to the SLI layer */
8756 if (atomic_read(&phba->fabric_iocb_count) == 0) {
8757 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
8760 /* Increment fabric iocb count to hold the position */
8761 atomic_inc(&phba->fabric_iocb_count);
8763 spin_unlock_irqrestore(&phba->hbalock, iflags);
8765 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8766 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8767 iocb->iocb_flag |= LPFC_IO_FABRIC;
8769 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8770 "Fabric sched1: ste:x%x",
8771 iocb->vport->port_state, 0, 0);
8773 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8775 if (ret == IOCB_ERROR) {
8776 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8777 iocb->fabric_iocb_cmpl = NULL;
8778 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8780 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
8781 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
8782 iocb->iocb_cmpl(phba, iocb, iocb);
8784 atomic_dec(&phba->fabric_iocb_count);
8793 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
8794 * @phba: pointer to lpfc hba data structure.
8796 * This routine unblocks the issuing fabric iocb command. The function
8797 * will clear the fabric iocb block bit and then invoke the routine
8798 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
8799 * from the driver internal fabric iocb list.
8802 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
8804 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8806 lpfc_resume_fabric_iocbs(phba);
8811 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
8812 * @phba: pointer to lpfc hba data structure.
8814 * This routine blocks the issuing fabric iocb for a specified amount of
8815 * time (currently 100 ms). This is done by set the fabric iocb block bit
8816 * and set up a timeout timer for 100ms. When the block bit is set, no more
8817 * fabric iocb will be issued out of the HBA.
8820 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
8824 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8825 /* Start a timer to unblock fabric iocbs after 100ms */
8827 mod_timer(&phba->fabric_block_timer,
8828 jiffies + msecs_to_jiffies(100));
8834 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
8835 * @phba: pointer to lpfc hba data structure.
8836 * @cmdiocb: pointer to lpfc command iocb data structure.
8837 * @rspiocb: pointer to lpfc response iocb data structure.
8839 * This routine is the callback function that is put to the fabric iocb's
8840 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
8841 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
8842 * function first restores and invokes the original iocb's callback function
8843 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
8844 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
8847 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8848 struct lpfc_iocbq *rspiocb)
8852 if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC)
8855 switch (rspiocb->iocb.ulpStatus) {
8856 case IOSTAT_NPORT_RJT:
8857 case IOSTAT_FABRIC_RJT:
8858 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
8859 lpfc_block_fabric_iocbs(phba);
8863 case IOSTAT_NPORT_BSY:
8864 case IOSTAT_FABRIC_BSY:
8865 lpfc_block_fabric_iocbs(phba);
8869 stat.un.lsRjtError =
8870 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
8871 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
8872 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
8873 lpfc_block_fabric_iocbs(phba);
8877 if (atomic_read(&phba->fabric_iocb_count) == 0)
8880 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
8881 cmdiocb->fabric_iocb_cmpl = NULL;
8882 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
8883 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
8885 atomic_dec(&phba->fabric_iocb_count);
8886 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
8887 /* Post any pending iocbs to HBA */
8888 lpfc_resume_fabric_iocbs(phba);
8893 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
8894 * @phba: pointer to lpfc hba data structure.
8895 * @iocb: pointer to lpfc command iocb data structure.
8897 * This routine is used as the top-level API for issuing a fabric iocb command
8898 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
8899 * function makes sure that only one fabric bound iocb will be outstanding at
8900 * any given time. As such, this function will first check to see whether there
8901 * is already an outstanding fabric iocb on the wire. If so, it will put the
8902 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8903 * issued later. Otherwise, it will issue the iocb on the wire and update the
8904 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8906 * Note, this implementation has a potential sending out fabric IOCBs out of
8907 * order. The problem is caused by the construction of the "ready" boolen does
8908 * not include the condition that the internal fabric IOCB list is empty. As
8909 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8910 * ahead of the fabric IOCBs in the internal list.
8913 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8914 * IOCB_ERROR - failed to issue fabric iocb
8917 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
8919 unsigned long iflags;
8923 if (atomic_read(&phba->fabric_iocb_count) > 1)
8926 spin_lock_irqsave(&phba->hbalock, iflags);
8927 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
8928 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8931 /* Increment fabric iocb count to hold the position */
8932 atomic_inc(&phba->fabric_iocb_count);
8933 spin_unlock_irqrestore(&phba->hbalock, iflags);
8935 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8936 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8937 iocb->iocb_flag |= LPFC_IO_FABRIC;
8939 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8940 "Fabric sched2: ste:x%x",
8941 iocb->vport->port_state, 0, 0);
8943 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8945 if (ret == IOCB_ERROR) {
8946 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8947 iocb->fabric_iocb_cmpl = NULL;
8948 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8949 atomic_dec(&phba->fabric_iocb_count);
8952 spin_lock_irqsave(&phba->hbalock, iflags);
8953 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
8954 spin_unlock_irqrestore(&phba->hbalock, iflags);
8961 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8962 * @vport: pointer to a virtual N_Port data structure.
8964 * This routine aborts all the IOCBs associated with a @vport from the
8965 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8966 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8967 * list, removes each IOCB associated with the @vport off the list, set the
8968 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8969 * associated with the IOCB.
8971 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
8973 LIST_HEAD(completions);
8974 struct lpfc_hba *phba = vport->phba;
8975 struct lpfc_iocbq *tmp_iocb, *piocb;
8977 spin_lock_irq(&phba->hbalock);
8978 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
8981 if (piocb->vport != vport)
8984 list_move_tail(&piocb->list, &completions);
8986 spin_unlock_irq(&phba->hbalock);
8988 /* Cancel all the IOCBs from the completions list */
8989 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8994 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
8995 * @ndlp: pointer to a node-list data structure.
8997 * This routine aborts all the IOCBs associated with an @ndlp from the
8998 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8999 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9000 * list, removes each IOCB associated with the @ndlp off the list, set the
9001 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9002 * associated with the IOCB.
9004 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
9006 LIST_HEAD(completions);
9007 struct lpfc_hba *phba = ndlp->phba;
9008 struct lpfc_iocbq *tmp_iocb, *piocb;
9009 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9011 spin_lock_irq(&phba->hbalock);
9012 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
9014 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
9016 list_move_tail(&piocb->list, &completions);
9019 spin_unlock_irq(&phba->hbalock);
9021 /* Cancel all the IOCBs from the completions list */
9022 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9027 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
9028 * @phba: pointer to lpfc hba data structure.
9030 * This routine aborts all the IOCBs currently on the driver internal
9031 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
9032 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
9033 * list, removes IOCBs off the list, set the status feild to
9034 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
9037 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
9039 LIST_HEAD(completions);
9041 spin_lock_irq(&phba->hbalock);
9042 list_splice_init(&phba->fabric_iocb_list, &completions);
9043 spin_unlock_irq(&phba->hbalock);
9045 /* Cancel all the IOCBs from the completions list */
9046 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9051 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
9052 * @vport: pointer to lpfc vport data structure.
9054 * This routine is invoked by the vport cleanup for deletions and the cleanup
9055 * for an ndlp on removal.
9058 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
9060 struct lpfc_hba *phba = vport->phba;
9061 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9062 unsigned long iflag = 0;
9064 spin_lock_irqsave(&phba->hbalock, iflag);
9065 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
9066 list_for_each_entry_safe(sglq_entry, sglq_next,
9067 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9068 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
9069 sglq_entry->ndlp = NULL;
9071 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
9072 spin_unlock_irqrestore(&phba->hbalock, iflag);
9077 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
9078 * @phba: pointer to lpfc hba data structure.
9079 * @axri: pointer to the els xri abort wcqe structure.
9081 * This routine is invoked by the worker thread to process a SLI4 slow-path
9085 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
9086 struct sli4_wcqe_xri_aborted *axri)
9088 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
9089 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
9092 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9093 unsigned long iflag = 0;
9094 struct lpfc_nodelist *ndlp;
9095 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9097 spin_lock_irqsave(&phba->hbalock, iflag);
9098 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
9099 list_for_each_entry_safe(sglq_entry, sglq_next,
9100 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9101 if (sglq_entry->sli4_xritag == xri) {
9102 list_del(&sglq_entry->list);
9103 ndlp = sglq_entry->ndlp;
9104 sglq_entry->ndlp = NULL;
9105 spin_lock(&pring->ring_lock);
9106 list_add_tail(&sglq_entry->list,
9107 &phba->sli4_hba.lpfc_sgl_list);
9108 sglq_entry->state = SGL_FREED;
9109 spin_unlock(&pring->ring_lock);
9110 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
9111 spin_unlock_irqrestore(&phba->hbalock, iflag);
9112 lpfc_set_rrq_active(phba, ndlp,
9113 sglq_entry->sli4_lxritag,
9116 /* Check if TXQ queue needs to be serviced */
9117 if (!(list_empty(&pring->txq)))
9118 lpfc_worker_wake_up(phba);
9122 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
9123 lxri = lpfc_sli4_xri_inrange(phba, xri);
9124 if (lxri == NO_XRI) {
9125 spin_unlock_irqrestore(&phba->hbalock, iflag);
9128 spin_lock(&pring->ring_lock);
9129 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
9130 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
9131 spin_unlock(&pring->ring_lock);
9132 spin_unlock_irqrestore(&phba->hbalock, iflag);
9135 sglq_entry->state = SGL_XRI_ABORTED;
9136 spin_unlock(&pring->ring_lock);
9137 spin_unlock_irqrestore(&phba->hbalock, iflag);
9141 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
9142 * @vport: pointer to virtual port object.
9143 * @ndlp: nodelist pointer for the impacted node.
9145 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
9146 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
9147 * the driver is required to send a LOGO to the remote node before it
9148 * attempts to recover its login to the remote node.
9151 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
9152 struct lpfc_nodelist *ndlp)
9154 struct Scsi_Host *shost;
9155 struct lpfc_hba *phba;
9156 unsigned long flags = 0;
9158 shost = lpfc_shost_from_vport(vport);
9160 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
9161 lpfc_printf_log(phba, KERN_INFO,
9162 LOG_SLI, "3093 No rport recovery needed. "
9163 "rport in state 0x%x\n", ndlp->nlp_state);
9166 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9167 "3094 Start rport recovery on shost id 0x%x "
9168 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
9170 shost->host_no, ndlp->nlp_DID,
9171 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
9174 * The rport is not responding. Remove the FCP-2 flag to prevent
9175 * an ADISC in the follow-up recovery code.
9177 spin_lock_irqsave(shost->host_lock, flags);
9178 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
9179 spin_unlock_irqrestore(shost->host_lock, flags);
9180 lpfc_issue_els_logo(vport, ndlp, 0);
9181 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);