1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
23 /* See Fibre Channel protocol T11 FC-LS for details */
24 #include <linux/blkdev.h>
25 #include <linux/pci.h>
26 #include <linux/slab.h>
27 #include <linux/interrupt.h>
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
37 #include "lpfc_sli4.h"
39 #include "lpfc_disc.h"
40 #include "lpfc_scsi.h"
42 #include "lpfc_logmsg.h"
43 #include "lpfc_crtn.h"
44 #include "lpfc_vport.h"
45 #include "lpfc_debugfs.h"
47 static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
49 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
51 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport);
52 static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
53 struct lpfc_nodelist *ndlp, uint8_t retry);
54 static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
55 struct lpfc_iocbq *iocb);
57 static int lpfc_max_els_tries = 3;
60 * lpfc_els_chk_latt - Check host link attention event for a vport
61 * @vport: pointer to a host virtual N_Port data structure.
63 * This routine checks whether there is an outstanding host link
64 * attention event during the discovery process with the @vport. It is done
65 * by reading the HBA's Host Attention (HA) register. If there is any host
66 * link attention events during this @vport's discovery process, the @vport
67 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
68 * be issued if the link state is not already in host link cleared state,
69 * and a return code shall indicate whether the host link attention event
72 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
73 * state in LPFC_VPORT_READY, the request for checking host link attention
74 * event will be ignored and a return code shall indicate no host link
75 * attention event had happened.
78 * 0 - no host link attention event happened
79 * 1 - host link attention event happened
82 lpfc_els_chk_latt(struct lpfc_vport *vport)
84 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
85 struct lpfc_hba *phba = vport->phba;
88 if (vport->port_state >= LPFC_VPORT_READY ||
89 phba->link_state == LPFC_LINK_DOWN ||
90 phba->sli_rev > LPFC_SLI_REV3)
93 /* Read the HBA Host Attention Register */
94 if (lpfc_readl(phba->HAregaddr, &ha_copy))
97 if (!(ha_copy & HA_LATT))
100 /* Pending Link Event during Discovery */
101 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
102 "0237 Pending Link Event during "
103 "Discovery: State x%x\n",
104 phba->pport->port_state);
106 /* CLEAR_LA should re-enable link attention events and
107 * we should then immediately take a LATT event. The
108 * LATT processing should call lpfc_linkdown() which
109 * will cleanup any left over in-progress discovery
112 spin_lock_irq(shost->host_lock);
113 vport->fc_flag |= FC_ABORT_DISCOVERY;
114 spin_unlock_irq(shost->host_lock);
116 if (phba->link_state != LPFC_CLEAR_LA)
117 lpfc_issue_clear_la(phba, vport);
123 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
124 * @vport: pointer to a host virtual N_Port data structure.
125 * @expectRsp: flag indicating whether response is expected.
126 * @cmdSize: size of the ELS command.
127 * @retry: number of retries to the command IOCB when it fails.
128 * @ndlp: pointer to a node-list data structure.
129 * @did: destination identifier.
130 * @elscmd: the ELS command code.
132 * This routine is used for allocating a lpfc-IOCB data structure from
133 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
134 * passed into the routine for discovery state machine to issue an Extended
135 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
136 * and preparation routine that is used by all the discovery state machine
137 * routines and the ELS command-specific fields will be later set up by
138 * the individual discovery machine routines after calling this routine
139 * allocating and preparing a generic IOCB data structure. It fills in the
140 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
141 * payload and response payload (if expected). The reference count on the
142 * ndlp is incremented by 1 and the reference to the ndlp is put into
143 * context1 of the IOCB data structure for this IOCB to hold the ndlp
144 * reference for the command's callback function to access later.
147 * Pointer to the newly allocated/prepared els iocb data structure
148 * NULL - when els iocb data structure allocation/preparation failed
151 lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
152 uint16_t cmdSize, uint8_t retry,
153 struct lpfc_nodelist *ndlp, uint32_t did,
156 struct lpfc_hba *phba = vport->phba;
157 struct lpfc_iocbq *elsiocb;
158 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
159 struct ulp_bde64 *bpl;
163 if (!lpfc_is_link_up(phba))
166 /* Allocate buffer for command iocb */
167 elsiocb = lpfc_sli_get_iocbq(phba);
173 * If this command is for fabric controller and HBA running
174 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
176 if ((did == Fabric_DID) &&
177 (phba->hba_flag & HBA_FIP_SUPPORT) &&
178 ((elscmd == ELS_CMD_FLOGI) ||
179 (elscmd == ELS_CMD_FDISC) ||
180 (elscmd == ELS_CMD_LOGO)))
183 elsiocb->iocb_flag |=
184 ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT)
185 & LPFC_FIP_ELS_ID_MASK);
188 elsiocb->iocb_flag |=
189 ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT)
190 & LPFC_FIP_ELS_ID_MASK);
193 elsiocb->iocb_flag |=
194 ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT)
195 & LPFC_FIP_ELS_ID_MASK);
199 elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
201 icmd = &elsiocb->iocb;
203 /* fill in BDEs for command */
204 /* Allocate buffer for command payload */
205 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
207 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
208 if (!pcmd || !pcmd->virt)
209 goto els_iocb_free_pcmb_exit;
211 INIT_LIST_HEAD(&pcmd->list);
213 /* Allocate buffer for response payload */
215 prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
217 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
219 if (!prsp || !prsp->virt)
220 goto els_iocb_free_prsp_exit;
221 INIT_LIST_HEAD(&prsp->list);
225 /* Allocate buffer for Buffer ptr list */
226 pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
228 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
230 if (!pbuflist || !pbuflist->virt)
231 goto els_iocb_free_pbuf_exit;
233 INIT_LIST_HEAD(&pbuflist->list);
236 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
237 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
238 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
239 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
241 icmd->un.elsreq64.remoteID = did; /* DID */
242 icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
243 if (elscmd == ELS_CMD_FLOGI)
244 icmd->ulpTimeout = FF_DEF_RATOV * 2;
246 icmd->ulpTimeout = phba->fc_ratov * 2;
248 icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
249 icmd->un.xseq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
250 icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
251 icmd->un.xseq64.bdl.bdeSize = sizeof(struct ulp_bde64);
252 icmd->un.xseq64.xmit_els_remoteID = did; /* DID */
253 icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
255 icmd->ulpBdeCount = 1;
257 icmd->ulpClass = CLASS3;
260 * If we have NPIV enabled, we want to send ELS traffic by VPI.
261 * For SLI4, since the driver controls VPIs we also want to include
262 * all ELS pt2pt protocol traffic as well.
264 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) ||
265 ((phba->sli_rev == LPFC_SLI_REV4) &&
266 (vport->fc_flag & FC_PT2PT))) {
269 icmd->un.elsreq64.myID = vport->fc_myDID;
271 /* For ELS_REQUEST64_CR, use the VPI by default */
272 icmd->ulpContext = phba->vpi_ids[vport->vpi];
276 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
277 if (elscmd == ELS_CMD_ECHO)
278 icmd->ulpCt_l = 0; /* context = invalid RPI */
280 icmd->ulpCt_l = 1; /* context = VPI */
283 bpl = (struct ulp_bde64 *) pbuflist->virt;
284 bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
285 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
286 bpl->tus.f.bdeSize = cmdSize;
287 bpl->tus.f.bdeFlags = 0;
288 bpl->tus.w = le32_to_cpu(bpl->tus.w);
292 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
293 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
294 bpl->tus.f.bdeSize = FCELSSIZE;
295 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
296 bpl->tus.w = le32_to_cpu(bpl->tus.w);
299 /* prevent preparing iocb with NULL ndlp reference */
300 elsiocb->context1 = lpfc_nlp_get(ndlp);
301 if (!elsiocb->context1)
302 goto els_iocb_free_pbuf_exit;
303 elsiocb->context2 = pcmd;
304 elsiocb->context3 = pbuflist;
305 elsiocb->retry = retry;
306 elsiocb->vport = vport;
307 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
310 list_add(&prsp->list, &pcmd->list);
313 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
314 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
315 "0116 Xmit ELS command x%x to remote "
316 "NPORT x%x I/O tag: x%x, port state:x%x"
318 elscmd, did, elsiocb->iotag,
322 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
323 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
324 "0117 Xmit ELS response x%x to remote "
325 "NPORT x%x I/O tag: x%x, size: x%x "
326 "port_state x%x fc_flag x%x\n",
327 elscmd, ndlp->nlp_DID, elsiocb->iotag,
328 cmdSize, vport->port_state,
333 els_iocb_free_pbuf_exit:
335 lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
338 els_iocb_free_prsp_exit:
339 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
342 els_iocb_free_pcmb_exit:
344 lpfc_sli_release_iocbq(phba, elsiocb);
349 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
350 * @vport: pointer to a host virtual N_Port data structure.
352 * This routine issues a fabric registration login for a @vport. An
353 * active ndlp node with Fabric_DID must already exist for this @vport.
354 * The routine invokes two mailbox commands to carry out fabric registration
355 * login through the HBA firmware: the first mailbox command requests the
356 * HBA to perform link configuration for the @vport; and the second mailbox
357 * command requests the HBA to perform the actual fabric registration login
361 * 0 - successfully issued fabric registration login for @vport
362 * -ENXIO -- failed to issue fabric registration login for @vport
365 lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
367 struct lpfc_hba *phba = vport->phba;
369 struct lpfc_dmabuf *mp;
370 struct lpfc_nodelist *ndlp;
371 struct serv_parm *sp;
375 sp = &phba->fc_fabparam;
376 ndlp = lpfc_findnode_did(vport, Fabric_DID);
377 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
382 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
388 vport->port_state = LPFC_FABRIC_CFG_LINK;
389 lpfc_config_link(phba, mbox);
390 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
393 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
394 if (rc == MBX_NOT_FINISHED) {
399 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
404 rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
411 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
413 /* increment the reference count on ndlp to hold reference
414 * for the callback routine.
416 mbox->context2 = lpfc_nlp_get(ndlp);
418 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
419 if (rc == MBX_NOT_FINISHED) {
421 goto fail_issue_reg_login;
426 fail_issue_reg_login:
427 /* decrement the reference count on ndlp just incremented
428 * for the failed mbox command.
431 mp = (struct lpfc_dmabuf *) mbox->context1;
432 lpfc_mbuf_free(phba, mp->virt, mp->phys);
435 mempool_free(mbox, phba->mbox_mem_pool);
438 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
439 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
440 "0249 Cannot issue Register Fabric login: Err %d\n", err);
445 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
446 * @vport: pointer to a host virtual N_Port data structure.
448 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
449 * the @vport. This mailbox command is necessary for SLI4 port only.
452 * 0 - successfully issued REG_VFI for @vport
453 * A failure code otherwise.
456 lpfc_issue_reg_vfi(struct lpfc_vport *vport)
458 struct lpfc_hba *phba = vport->phba;
459 LPFC_MBOXQ_t *mboxq = NULL;
460 struct lpfc_nodelist *ndlp;
461 struct lpfc_dmabuf *dmabuf = NULL;
464 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
465 if ((phba->sli_rev == LPFC_SLI_REV4) &&
466 !(phba->link_flag & LS_LOOPBACK_MODE) &&
467 !(vport->fc_flag & FC_PT2PT)) {
468 ndlp = lpfc_findnode_did(vport, Fabric_DID);
469 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
475 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
481 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */
482 if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
483 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
488 dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
493 memcpy(dmabuf->virt, &phba->fc_fabparam,
494 sizeof(struct serv_parm));
497 vport->port_state = LPFC_FABRIC_CFG_LINK;
499 lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
501 lpfc_reg_vfi(mboxq, vport, 0);
503 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
504 mboxq->vport = vport;
505 mboxq->context1 = dmabuf;
506 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
507 if (rc == MBX_NOT_FINISHED) {
515 mempool_free(mboxq, phba->mbox_mem_pool);
518 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
522 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
523 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
524 "0289 Issue Register VFI failed: Err %d\n", rc);
529 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
530 * @vport: pointer to a host virtual N_Port data structure.
532 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
533 * the @vport. This mailbox command is necessary for SLI4 port only.
536 * 0 - successfully issued REG_VFI for @vport
537 * A failure code otherwise.
540 lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
542 struct lpfc_hba *phba = vport->phba;
543 struct Scsi_Host *shost;
547 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
549 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
550 "2556 UNREG_VFI mbox allocation failed"
551 "HBA state x%x\n", phba->pport->port_state);
555 lpfc_unreg_vfi(mboxq, vport);
556 mboxq->vport = vport;
557 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
559 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
560 if (rc == MBX_NOT_FINISHED) {
561 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
562 "2557 UNREG_VFI issue mbox failed rc x%x "
564 rc, phba->pport->port_state);
565 mempool_free(mboxq, phba->mbox_mem_pool);
569 shost = lpfc_shost_from_vport(vport);
570 spin_lock_irq(shost->host_lock);
571 vport->fc_flag &= ~FC_VFI_REGISTERED;
572 spin_unlock_irq(shost->host_lock);
577 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
578 * @vport: pointer to a host virtual N_Port data structure.
579 * @sp: pointer to service parameter data structure.
581 * This routine is called from FLOGI/FDISC completion handler functions.
582 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
583 * node nodename is changed in the completion service parameter else return
584 * 0. This function also set flag in the vport data structure to delay
585 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
586 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
587 * node nodename is changed in the completion service parameter.
590 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
591 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
595 lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
596 struct serv_parm *sp)
598 struct lpfc_hba *phba = vport->phba;
599 uint8_t fabric_param_changed = 0;
600 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
602 if ((vport->fc_prevDID != vport->fc_myDID) ||
603 memcmp(&vport->fabric_portname, &sp->portName,
604 sizeof(struct lpfc_name)) ||
605 memcmp(&vport->fabric_nodename, &sp->nodeName,
606 sizeof(struct lpfc_name)) ||
607 (vport->vport_flag & FAWWPN_PARAM_CHG)) {
608 fabric_param_changed = 1;
609 vport->vport_flag &= ~FAWWPN_PARAM_CHG;
612 * Word 1 Bit 31 in common service parameter is overloaded.
613 * Word 1 Bit 31 in FLOGI request is multiple NPort request
614 * Word 1 Bit 31 in FLOGI response is clean address bit
616 * If fabric parameter is changed and clean address bit is
617 * cleared delay nport discovery if
618 * - vport->fc_prevDID != 0 (not initial discovery) OR
619 * - lpfc_delay_discovery module parameter is set.
621 if (fabric_param_changed && !sp->cmn.clean_address_bit &&
622 (vport->fc_prevDID || phba->cfg_delay_discovery)) {
623 spin_lock_irq(shost->host_lock);
624 vport->fc_flag |= FC_DISC_DELAYED;
625 spin_unlock_irq(shost->host_lock);
628 return fabric_param_changed;
633 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
634 * @vport: pointer to a host virtual N_Port data structure.
635 * @ndlp: pointer to a node-list data structure.
636 * @sp: pointer to service parameter data structure.
637 * @irsp: pointer to the IOCB within the lpfc response IOCB.
639 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
640 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
641 * port in a fabric topology. It properly sets up the parameters to the @ndlp
642 * from the IOCB response. It also check the newly assigned N_Port ID to the
643 * @vport against the previously assigned N_Port ID. If it is different from
644 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
645 * is invoked on all the remaining nodes with the @vport to unregister the
646 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
647 * is invoked to register login to the fabric.
650 * 0 - Success (currently, always return 0)
653 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
654 struct serv_parm *sp, IOCB_t *irsp)
656 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
657 struct lpfc_hba *phba = vport->phba;
658 struct lpfc_nodelist *np;
659 struct lpfc_nodelist *next_np;
660 uint8_t fabric_param_changed;
662 spin_lock_irq(shost->host_lock);
663 vport->fc_flag |= FC_FABRIC;
664 spin_unlock_irq(shost->host_lock);
666 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
667 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
668 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
670 phba->fc_edtovResol = sp->cmn.edtovResolution;
671 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
673 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
674 spin_lock_irq(shost->host_lock);
675 vport->fc_flag |= FC_PUBLIC_LOOP;
676 spin_unlock_irq(shost->host_lock);
679 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
680 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
681 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
682 ndlp->nlp_class_sup = 0;
683 if (sp->cls1.classValid)
684 ndlp->nlp_class_sup |= FC_COS_CLASS1;
685 if (sp->cls2.classValid)
686 ndlp->nlp_class_sup |= FC_COS_CLASS2;
687 if (sp->cls3.classValid)
688 ndlp->nlp_class_sup |= FC_COS_CLASS3;
689 if (sp->cls4.classValid)
690 ndlp->nlp_class_sup |= FC_COS_CLASS4;
691 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
692 sp->cmn.bbRcvSizeLsb;
694 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
695 if (fabric_param_changed) {
696 /* Reset FDMI attribute masks based on config parameter */
697 if (phba->cfg_enable_SmartSAN ||
698 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
699 /* Setup appropriate attribute masks */
700 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
701 if (phba->cfg_enable_SmartSAN)
702 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
704 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
706 vport->fdmi_hba_mask = 0;
707 vport->fdmi_port_mask = 0;
711 memcpy(&vport->fabric_portname, &sp->portName,
712 sizeof(struct lpfc_name));
713 memcpy(&vport->fabric_nodename, &sp->nodeName,
714 sizeof(struct lpfc_name));
715 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
717 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
718 if (sp->cmn.response_multiple_NPort) {
719 lpfc_printf_vlog(vport, KERN_WARNING,
721 "1816 FLOGI NPIV supported, "
722 "response data 0x%x\n",
723 sp->cmn.response_multiple_NPort);
724 spin_lock_irq(&phba->hbalock);
725 phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
726 spin_unlock_irq(&phba->hbalock);
728 /* Because we asked f/w for NPIV it still expects us
729 to call reg_vnpid atleast for the physcial host */
730 lpfc_printf_vlog(vport, KERN_WARNING,
732 "1817 Fabric does not support NPIV "
733 "- configuring single port mode.\n");
734 spin_lock_irq(&phba->hbalock);
735 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
736 spin_unlock_irq(&phba->hbalock);
741 * For FC we need to do some special processing because of the SLI
742 * Port's default settings of the Common Service Parameters.
744 if ((phba->sli_rev == LPFC_SLI_REV4) &&
745 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
746 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
747 if (fabric_param_changed)
748 lpfc_unregister_fcf_prep(phba);
750 /* This should just update the VFI CSPs*/
751 if (vport->fc_flag & FC_VFI_REGISTERED)
752 lpfc_issue_reg_vfi(vport);
755 if (fabric_param_changed &&
756 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
758 /* If our NportID changed, we need to ensure all
759 * remaining NPORTs get unreg_login'ed.
761 list_for_each_entry_safe(np, next_np,
762 &vport->fc_nodes, nlp_listp) {
763 if (!NLP_CHK_NODE_ACT(np))
765 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
766 !(np->nlp_flag & NLP_NPR_ADISC))
768 spin_lock_irq(shost->host_lock);
769 np->nlp_flag &= ~NLP_NPR_ADISC;
770 spin_unlock_irq(shost->host_lock);
771 lpfc_unreg_rpi(vport, np);
773 lpfc_cleanup_pending_mbox(vport);
775 if (phba->sli_rev == LPFC_SLI_REV4) {
776 lpfc_sli4_unreg_all_rpis(vport);
777 lpfc_mbx_unreg_vpi(vport);
778 spin_lock_irq(shost->host_lock);
779 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
780 spin_unlock_irq(shost->host_lock);
784 * For SLI3 and SLI4, the VPI needs to be reregistered in
785 * response to this fabric parameter change event.
787 spin_lock_irq(shost->host_lock);
788 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
789 spin_unlock_irq(shost->host_lock);
790 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
791 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
793 * Driver needs to re-reg VPI in order for f/w
794 * to update the MAC address.
796 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
797 lpfc_register_new_vport(phba, vport, ndlp);
801 if (phba->sli_rev < LPFC_SLI_REV4) {
802 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
803 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
804 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
805 lpfc_register_new_vport(phba, vport, ndlp);
807 lpfc_issue_fabric_reglogin(vport);
809 ndlp->nlp_type |= NLP_FABRIC;
810 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
811 if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
812 (vport->vpi_state & LPFC_VPI_REGISTERED)) {
813 lpfc_start_fdiscs(phba);
814 lpfc_do_scr_ns_plogi(phba, vport);
815 } else if (vport->fc_flag & FC_VFI_REGISTERED)
816 lpfc_issue_init_vpi(vport);
818 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
819 "3135 Need register VFI: (x%x/%x)\n",
820 vport->fc_prevDID, vport->fc_myDID);
821 lpfc_issue_reg_vfi(vport);
828 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
829 * @vport: pointer to a host virtual N_Port data structure.
830 * @ndlp: pointer to a node-list data structure.
831 * @sp: pointer to service parameter data structure.
833 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
834 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
835 * in a point-to-point topology. First, the @vport's N_Port Name is compared
836 * with the received N_Port Name: if the @vport's N_Port Name is greater than
837 * the received N_Port Name lexicographically, this node shall assign local
838 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
839 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
840 * this node shall just wait for the remote node to issue PLOGI and assign
848 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
849 struct serv_parm *sp)
851 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
852 struct lpfc_hba *phba = vport->phba;
856 spin_lock_irq(shost->host_lock);
857 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
858 vport->fc_flag |= FC_PT2PT;
859 spin_unlock_irq(shost->host_lock);
861 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
862 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
863 lpfc_unregister_fcf_prep(phba);
865 spin_lock_irq(shost->host_lock);
866 vport->fc_flag &= ~FC_VFI_REGISTERED;
867 spin_unlock_irq(shost->host_lock);
868 phba->fc_topology_changed = 0;
871 rc = memcmp(&vport->fc_portname, &sp->portName,
872 sizeof(vport->fc_portname));
875 /* This side will initiate the PLOGI */
876 spin_lock_irq(shost->host_lock);
877 vport->fc_flag |= FC_PT2PT_PLOGI;
878 spin_unlock_irq(shost->host_lock);
881 * N_Port ID cannot be 0, set our Id to LocalID
882 * the other side will be RemoteID.
887 vport->fc_myDID = PT2PT_LocalID;
889 /* Decrement ndlp reference count indicating that ndlp can be
890 * safely released when other references to it are done.
894 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
897 * Cannot find existing Fabric ndlp, so allocate a
900 ndlp = lpfc_nlp_init(vport, PT2PT_RemoteID);
903 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
904 ndlp = lpfc_enable_node(vport, ndlp,
905 NLP_STE_UNUSED_NODE);
910 memcpy(&ndlp->nlp_portname, &sp->portName,
911 sizeof(struct lpfc_name));
912 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
913 sizeof(struct lpfc_name));
914 /* Set state will put ndlp onto node list if not already done */
915 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
916 spin_lock_irq(shost->host_lock);
917 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
918 spin_unlock_irq(shost->host_lock);
920 /* This side will wait for the PLOGI, decrement ndlp reference
921 * count indicating that ndlp can be released when other
922 * references to it are done.
926 /* If we are pt2pt with another NPort, force NPIV off! */
927 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
929 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
933 lpfc_config_link(phba, mbox);
935 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
937 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
938 if (rc == MBX_NOT_FINISHED) {
939 mempool_free(mbox, phba->mbox_mem_pool);
949 * lpfc_cmpl_els_flogi - Completion callback function for flogi
950 * @phba: pointer to lpfc hba data structure.
951 * @cmdiocb: pointer to lpfc command iocb data structure.
952 * @rspiocb: pointer to lpfc response iocb data structure.
954 * This routine is the top-level completion callback function for issuing
955 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
956 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
957 * retry has been made (either immediately or delayed with lpfc_els_retry()
958 * returning 1), the command IOCB will be released and function returned.
959 * If the retry attempt has been given up (possibly reach the maximum
960 * number of retries), one additional decrement of ndlp reference shall be
961 * invoked before going out after releasing the command IOCB. This will
962 * actually release the remote node (Note, lpfc_els_free_iocb() will also
963 * invoke one decrement of ndlp reference count). If no error reported in
964 * the IOCB status, the command Port ID field is used to determine whether
965 * this is a point-to-point topology or a fabric topology: if the Port ID
966 * field is assigned, it is a fabric topology; otherwise, it is a
967 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
968 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
969 * specific topology completion conditions.
972 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
973 struct lpfc_iocbq *rspiocb)
975 struct lpfc_vport *vport = cmdiocb->vport;
976 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
977 IOCB_t *irsp = &rspiocb->iocb;
978 struct lpfc_nodelist *ndlp = cmdiocb->context1;
979 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
980 struct serv_parm *sp;
984 /* Check to see if link went down during discovery */
985 if (lpfc_els_chk_latt(vport)) {
986 /* One additional decrement on node reference count to
987 * trigger the release of the node
993 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
994 "FLOGI cmpl: status:x%x/x%x state:x%x",
995 irsp->ulpStatus, irsp->un.ulpWord[4],
998 if (irsp->ulpStatus) {
1000 * In case of FIP mode, perform roundrobin FCF failover
1001 * due to new FCF discovery
1003 if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
1004 (phba->fcf.fcf_flag & FCF_DISCOVERY)) {
1005 if (phba->link_state < LPFC_LINK_UP)
1006 goto stop_rr_fcf_flogi;
1007 if ((phba->fcoe_cvl_eventtag_attn ==
1008 phba->fcoe_cvl_eventtag) &&
1009 (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1010 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1012 goto stop_rr_fcf_flogi;
1014 phba->fcoe_cvl_eventtag_attn =
1015 phba->fcoe_cvl_eventtag;
1016 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1017 "2611 FLOGI failed on FCF (x%x), "
1018 "status:x%x/x%x, tmo:x%x, perform "
1019 "roundrobin FCF failover\n",
1020 phba->fcf.current_rec.fcf_indx,
1021 irsp->ulpStatus, irsp->un.ulpWord[4],
1023 lpfc_sli4_set_fcf_flogi_fail(phba,
1024 phba->fcf.current_rec.fcf_indx);
1025 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
1026 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
1033 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1034 "2858 FLOGI failure Status:x%x/x%x TMO:x%x "
1036 irsp->ulpStatus, irsp->un.ulpWord[4],
1037 irsp->ulpTimeout, phba->hba_flag,
1038 phba->fcf.fcf_flag);
1040 /* Check for retry */
1041 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
1045 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1046 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1047 irsp->ulpStatus, irsp->un.ulpWord[4],
1051 /* If this is not a loop open failure, bail out */
1052 if (!(irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
1053 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1054 IOERR_LOOP_OPEN_FAILURE)))
1057 /* FLOGI failed, so there is no fabric */
1058 spin_lock_irq(shost->host_lock);
1059 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1060 spin_unlock_irq(shost->host_lock);
1062 /* If private loop, then allow max outstanding els to be
1063 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1064 * alpa map would take too long otherwise.
1066 if (phba->alpa_map[0] == 0)
1067 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
1068 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1069 (!(vport->fc_flag & FC_VFI_REGISTERED) ||
1070 (vport->fc_prevDID != vport->fc_myDID) ||
1071 phba->fc_topology_changed)) {
1072 if (vport->fc_flag & FC_VFI_REGISTERED) {
1073 if (phba->fc_topology_changed) {
1074 lpfc_unregister_fcf_prep(phba);
1075 spin_lock_irq(shost->host_lock);
1076 vport->fc_flag &= ~FC_VFI_REGISTERED;
1077 spin_unlock_irq(shost->host_lock);
1078 phba->fc_topology_changed = 0;
1080 lpfc_sli4_unreg_all_rpis(vport);
1084 /* Do not register VFI if the driver aborted FLOGI */
1085 if (!lpfc_error_lost_link(irsp))
1086 lpfc_issue_reg_vfi(vport);
1092 spin_lock_irq(shost->host_lock);
1093 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
1094 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
1095 spin_unlock_irq(shost->host_lock);
1098 * The FLogI succeeded. Sync the data for the CPU before
1101 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1104 sp = prsp->virt + sizeof(uint32_t);
1106 /* FLOGI completes successfully */
1107 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1108 "0101 FLOGI completes successfully, I/O tag:x%x, "
1109 "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb->iotag,
1110 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
1111 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
1112 vport->port_state, vport->fc_flag);
1114 if (vport->port_state == LPFC_FLOGI) {
1116 * If Common Service Parameters indicate Nport
1117 * we are point to point, if Fport we are Fabric.
1120 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
1121 else if (!(phba->hba_flag & HBA_FCOE_MODE))
1122 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
1124 lpfc_printf_vlog(vport, KERN_ERR,
1126 "2831 FLOGI response with cleared Fabric "
1127 "bit fcf_index 0x%x "
1128 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1130 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1131 phba->fcf.current_rec.fcf_indx,
1132 phba->fcf.current_rec.switch_name[0],
1133 phba->fcf.current_rec.switch_name[1],
1134 phba->fcf.current_rec.switch_name[2],
1135 phba->fcf.current_rec.switch_name[3],
1136 phba->fcf.current_rec.switch_name[4],
1137 phba->fcf.current_rec.switch_name[5],
1138 phba->fcf.current_rec.switch_name[6],
1139 phba->fcf.current_rec.switch_name[7],
1140 phba->fcf.current_rec.fabric_name[0],
1141 phba->fcf.current_rec.fabric_name[1],
1142 phba->fcf.current_rec.fabric_name[2],
1143 phba->fcf.current_rec.fabric_name[3],
1144 phba->fcf.current_rec.fabric_name[4],
1145 phba->fcf.current_rec.fabric_name[5],
1146 phba->fcf.current_rec.fabric_name[6],
1147 phba->fcf.current_rec.fabric_name[7]);
1149 spin_lock_irq(&phba->hbalock);
1150 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1151 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1152 spin_unlock_irq(&phba->hbalock);
1156 /* Mark the FCF discovery process done */
1157 if (phba->hba_flag & HBA_FIP_SUPPORT)
1158 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
1160 "2769 FLOGI to FCF (x%x) "
1161 "completed successfully\n",
1162 phba->fcf.current_rec.fcf_indx);
1163 spin_lock_irq(&phba->hbalock);
1164 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1165 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1166 spin_unlock_irq(&phba->hbalock);
1172 spin_lock_irq(&phba->hbalock);
1173 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1174 spin_unlock_irq(&phba->hbalock);
1178 if (!lpfc_error_lost_link(irsp)) {
1179 /* FLOGI failed, so just use loop map to make discovery list */
1180 lpfc_disc_list_loopmap(vport);
1182 /* Start discovery */
1183 lpfc_disc_start(vport);
1184 } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1185 (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1186 IOERR_SLI_ABORTED) &&
1187 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1188 IOERR_SLI_DOWN))) &&
1189 (phba->link_state != LPFC_CLEAR_LA)) {
1190 /* If FLOGI failed enable link interrupt. */
1191 lpfc_issue_clear_la(phba, vport);
1194 lpfc_els_free_iocb(phba, cmdiocb);
1198 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1199 * @vport: pointer to a host virtual N_Port data structure.
1200 * @ndlp: pointer to a node-list data structure.
1201 * @retry: number of retries to the command IOCB.
1203 * This routine issues a Fabric Login (FLOGI) Request ELS command
1204 * for a @vport. The initiator service parameters are put into the payload
1205 * of the FLOGI Request IOCB and the top-level callback function pointer
1206 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1207 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1208 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1210 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1211 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1212 * will be stored into the context1 field of the IOCB for the completion
1213 * callback function to the FLOGI ELS command.
1216 * 0 - successfully issued flogi iocb for @vport
1217 * 1 - failed to issue flogi iocb for @vport
1220 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1223 struct lpfc_hba *phba = vport->phba;
1224 struct serv_parm *sp;
1226 struct lpfc_iocbq *elsiocb;
1232 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1233 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1234 ndlp->nlp_DID, ELS_CMD_FLOGI);
1239 icmd = &elsiocb->iocb;
1240 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1242 /* For FLOGI request, remainder of payload is service parameters */
1243 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
1244 pcmd += sizeof(uint32_t);
1245 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1246 sp = (struct serv_parm *) pcmd;
1248 /* Setup CSPs accordingly for Fabric */
1249 sp->cmn.e_d_tov = 0;
1250 sp->cmn.w2.r_a_tov = 0;
1251 sp->cmn.virtual_fabric_support = 0;
1252 sp->cls1.classValid = 0;
1253 if (sp->cmn.fcphLow < FC_PH3)
1254 sp->cmn.fcphLow = FC_PH3;
1255 if (sp->cmn.fcphHigh < FC_PH3)
1256 sp->cmn.fcphHigh = FC_PH3;
1258 if (phba->sli_rev == LPFC_SLI_REV4) {
1259 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1260 LPFC_SLI_INTF_IF_TYPE_0) {
1261 elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
1262 elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
1263 /* FLOGI needs to be 3 for WQE FCFI */
1264 /* Set the fcfi to the fcfi we registered with */
1265 elsiocb->iocb.ulpContext = phba->fcf.fcfi;
1267 /* Can't do SLI4 class2 without support sequence coalescing */
1268 sp->cls2.classValid = 0;
1269 sp->cls2.seqDelivery = 0;
1271 /* Historical, setting sequential-delivery bit for SLI3 */
1272 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
1273 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
1274 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1275 sp->cmn.request_multiple_Nport = 1;
1276 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1280 sp->cmn.request_multiple_Nport = 0;
1283 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
1284 icmd->un.elsreq64.myID = 0;
1285 icmd->un.elsreq64.fl = 1;
1288 tmo = phba->fc_ratov;
1289 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
1290 lpfc_set_disctmo(vport);
1291 phba->fc_ratov = tmo;
1293 phba->fc_stat.elsXmitFLOGI++;
1294 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
1296 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1297 "Issue FLOGI: opt:x%x",
1298 phba->sli3_options, 0, 0);
1300 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
1301 if (rc == IOCB_ERROR) {
1302 lpfc_els_free_iocb(phba, elsiocb);
1309 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1310 * @phba: pointer to lpfc hba data structure.
1312 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1313 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1314 * list and issues an abort IOCB commond on each outstanding IOCB that
1315 * contains a active Fabric_DID ndlp. Note that this function is to issue
1316 * the abort IOCB command on all the outstanding IOCBs, thus when this
1317 * function returns, it does not guarantee all the IOCBs are actually aborted.
1320 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1323 lpfc_els_abort_flogi(struct lpfc_hba *phba)
1325 struct lpfc_sli_ring *pring;
1326 struct lpfc_iocbq *iocb, *next_iocb;
1327 struct lpfc_nodelist *ndlp;
1330 /* Abort outstanding I/O on NPort <nlp_DID> */
1331 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1332 "0201 Abort outstanding I/O on NPort x%x\n",
1335 pring = lpfc_phba_elsring(phba);
1338 * Check the txcmplq for an iocb that matches the nport the driver is
1341 spin_lock_irq(&phba->hbalock);
1342 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1344 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
1345 ndlp = (struct lpfc_nodelist *)(iocb->context1);
1346 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
1347 (ndlp->nlp_DID == Fabric_DID))
1348 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1351 spin_unlock_irq(&phba->hbalock);
1357 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1358 * @vport: pointer to a host virtual N_Port data structure.
1360 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1361 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1362 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1363 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1364 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1365 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1369 * 0 - failed to issue initial flogi for @vport
1370 * 1 - successfully issued initial flogi for @vport
1373 lpfc_initial_flogi(struct lpfc_vport *vport)
1375 struct lpfc_nodelist *ndlp;
1377 vport->port_state = LPFC_FLOGI;
1378 lpfc_set_disctmo(vport);
1380 /* First look for the Fabric ndlp */
1381 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1383 /* Cannot find existing Fabric ndlp, so allocate a new one */
1384 ndlp = lpfc_nlp_init(vport, Fabric_DID);
1387 /* Set the node type */
1388 ndlp->nlp_type |= NLP_FABRIC;
1389 /* Put ndlp onto node list */
1390 lpfc_enqueue_node(vport, ndlp);
1391 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1392 /* re-setup ndlp without removing from node list */
1393 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1398 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
1399 /* This decrement of reference count to node shall kick off
1400 * the release of the node.
1409 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1410 * @vport: pointer to a host virtual N_Port data structure.
1412 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1413 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1414 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1415 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1416 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1417 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1421 * 0 - failed to issue initial fdisc for @vport
1422 * 1 - successfully issued initial fdisc for @vport
1425 lpfc_initial_fdisc(struct lpfc_vport *vport)
1427 struct lpfc_nodelist *ndlp;
1429 /* First look for the Fabric ndlp */
1430 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1432 /* Cannot find existing Fabric ndlp, so allocate a new one */
1433 ndlp = lpfc_nlp_init(vport, Fabric_DID);
1436 /* Put ndlp onto node list */
1437 lpfc_enqueue_node(vport, ndlp);
1438 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1439 /* re-setup ndlp without removing from node list */
1440 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1445 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
1446 /* decrement node reference count to trigger the release of
1456 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1457 * @vport: pointer to a host virtual N_Port data structure.
1459 * This routine checks whether there are more remaining Port Logins
1460 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1461 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1462 * to issue ELS PLOGIs up to the configured discover threads with the
1463 * @vport (@vport->cfg_discovery_threads). The function also decrement
1464 * the @vport's num_disc_node by 1 if it is not already 0.
1467 lpfc_more_plogi(struct lpfc_vport *vport)
1469 if (vport->num_disc_nodes)
1470 vport->num_disc_nodes--;
1472 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1473 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1474 "0232 Continue discovery with %d PLOGIs to go "
1475 "Data: x%x x%x x%x\n",
1476 vport->num_disc_nodes, vport->fc_plogi_cnt,
1477 vport->fc_flag, vport->port_state);
1478 /* Check to see if there are more PLOGIs to be sent */
1479 if (vport->fc_flag & FC_NLP_MORE)
1480 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1481 lpfc_els_disc_plogi(vport);
1487 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1488 * @phba: pointer to lpfc hba data structure.
1489 * @prsp: pointer to response IOCB payload.
1490 * @ndlp: pointer to a node-list data structure.
1492 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1493 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1494 * The following cases are considered N_Port confirmed:
1495 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1496 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1497 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1498 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1499 * 1) if there is a node on vport list other than the @ndlp with the same
1500 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1501 * on that node to release the RPI associated with the node; 2) if there is
1502 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1503 * into, a new node shall be allocated (or activated). In either case, the
1504 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1505 * be released and the new_ndlp shall be put on to the vport node list and
1506 * its pointer returned as the confirmed node.
1508 * Note that before the @ndlp got "released", the keepDID from not-matching
1509 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1510 * of the @ndlp. This is because the release of @ndlp is actually to put it
1511 * into an inactive state on the vport node list and the vport node list
1512 * management algorithm does not allow two node with a same DID.
1515 * pointer to the PLOGI N_Port @ndlp
1517 static struct lpfc_nodelist *
1518 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
1519 struct lpfc_nodelist *ndlp)
1521 struct lpfc_vport *vport = ndlp->vport;
1522 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1523 struct lpfc_nodelist *new_ndlp;
1524 struct lpfc_rport_data *rdata;
1525 struct fc_rport *rport;
1526 struct serv_parm *sp;
1527 uint8_t name[sizeof(struct lpfc_name)];
1528 uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
1529 uint16_t keep_nlp_state;
1532 unsigned long *active_rrqs_xri_bitmap = NULL;
1534 /* Fabric nodes can have the same WWPN so we don't bother searching
1535 * by WWPN. Just return the ndlp that was given to us.
1537 if (ndlp->nlp_type & NLP_FABRIC)
1540 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
1541 memset(name, 0, sizeof(struct lpfc_name));
1543 /* Now we find out if the NPort we are logging into, matches the WWPN
1544 * we have for that ndlp. If not, we have some work to do.
1546 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
1548 if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp))
1550 if (phba->sli_rev == LPFC_SLI_REV4) {
1551 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1553 if (active_rrqs_xri_bitmap)
1554 memset(active_rrqs_xri_bitmap, 0,
1555 phba->cfg_rrq_xri_bitmap_sz);
1558 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1559 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1560 ndlp, ndlp->nlp_DID, new_ndlp);
1563 rc = memcmp(&ndlp->nlp_portname, name,
1564 sizeof(struct lpfc_name));
1566 if (active_rrqs_xri_bitmap)
1567 mempool_free(active_rrqs_xri_bitmap,
1568 phba->active_rrq_pool);
1571 new_ndlp = lpfc_nlp_init(vport, ndlp->nlp_DID);
1573 if (active_rrqs_xri_bitmap)
1574 mempool_free(active_rrqs_xri_bitmap,
1575 phba->active_rrq_pool);
1578 } else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
1579 rc = memcmp(&ndlp->nlp_portname, name,
1580 sizeof(struct lpfc_name));
1582 if (active_rrqs_xri_bitmap)
1583 mempool_free(active_rrqs_xri_bitmap,
1584 phba->active_rrq_pool);
1587 new_ndlp = lpfc_enable_node(vport, new_ndlp,
1588 NLP_STE_UNUSED_NODE);
1590 if (active_rrqs_xri_bitmap)
1591 mempool_free(active_rrqs_xri_bitmap,
1592 phba->active_rrq_pool);
1595 keepDID = new_ndlp->nlp_DID;
1596 if ((phba->sli_rev == LPFC_SLI_REV4) && active_rrqs_xri_bitmap)
1597 memcpy(active_rrqs_xri_bitmap,
1598 new_ndlp->active_rrqs_xri_bitmap,
1599 phba->cfg_rrq_xri_bitmap_sz);
1601 keepDID = new_ndlp->nlp_DID;
1602 if (phba->sli_rev == LPFC_SLI_REV4 &&
1603 active_rrqs_xri_bitmap)
1604 memcpy(active_rrqs_xri_bitmap,
1605 new_ndlp->active_rrqs_xri_bitmap,
1606 phba->cfg_rrq_xri_bitmap_sz);
1609 lpfc_unreg_rpi(vport, new_ndlp);
1610 new_ndlp->nlp_DID = ndlp->nlp_DID;
1611 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
1612 if (phba->sli_rev == LPFC_SLI_REV4)
1613 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1614 ndlp->active_rrqs_xri_bitmap,
1615 phba->cfg_rrq_xri_bitmap_sz);
1617 spin_lock_irq(shost->host_lock);
1618 keep_nlp_flag = new_ndlp->nlp_flag;
1619 new_ndlp->nlp_flag = ndlp->nlp_flag;
1620 ndlp->nlp_flag = keep_nlp_flag;
1621 spin_unlock_irq(shost->host_lock);
1623 /* Set nlp_states accordingly */
1624 keep_nlp_state = new_ndlp->nlp_state;
1625 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
1627 /* Move this back to NPR state */
1628 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1629 /* The new_ndlp is replacing ndlp totally, so we need
1630 * to put ndlp on UNUSED list and try to free it.
1632 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1633 "3179 PLOGI confirm NEW: %x %x\n",
1634 new_ndlp->nlp_DID, keepDID);
1636 /* Fix up the rport accordingly */
1637 rport = ndlp->rport;
1639 rdata = rport->dd_data;
1640 if (rdata->pnode == ndlp) {
1641 /* break the link before dropping the ref */
1644 rdata->pnode = lpfc_nlp_get(new_ndlp);
1645 new_ndlp->rport = rport;
1647 new_ndlp->nlp_type = ndlp->nlp_type;
1649 /* We shall actually free the ndlp with both nlp_DID and
1650 * nlp_portname fields equals 0 to avoid any ndlp on the
1651 * nodelist never to be used.
1653 if (ndlp->nlp_DID == 0) {
1654 spin_lock_irq(&phba->ndlp_lock);
1655 NLP_SET_FREE_REQ(ndlp);
1656 spin_unlock_irq(&phba->ndlp_lock);
1659 /* Two ndlps cannot have the same did on the nodelist */
1660 ndlp->nlp_DID = keepDID;
1661 if (phba->sli_rev == LPFC_SLI_REV4 &&
1662 active_rrqs_xri_bitmap)
1663 memcpy(ndlp->active_rrqs_xri_bitmap,
1664 active_rrqs_xri_bitmap,
1665 phba->cfg_rrq_xri_bitmap_sz);
1667 if (!NLP_CHK_NODE_ACT(ndlp))
1668 lpfc_drop_node(vport, ndlp);
1671 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1672 "3180 PLOGI confirm SWAP: %x %x\n",
1673 new_ndlp->nlp_DID, keepDID);
1675 lpfc_unreg_rpi(vport, ndlp);
1677 /* Two ndlps cannot have the same did */
1678 ndlp->nlp_DID = keepDID;
1679 if (phba->sli_rev == LPFC_SLI_REV4 &&
1680 active_rrqs_xri_bitmap)
1681 memcpy(ndlp->active_rrqs_xri_bitmap,
1682 active_rrqs_xri_bitmap,
1683 phba->cfg_rrq_xri_bitmap_sz);
1685 /* Since we are switching over to the new_ndlp,
1686 * reset the old ndlp state
1688 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1689 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
1690 keep_nlp_state = NLP_STE_NPR_NODE;
1691 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1693 /* Fix up the rport accordingly */
1694 rport = ndlp->rport;
1696 rdata = rport->dd_data;
1697 put_node = rdata->pnode != NULL;
1698 put_rport = ndlp->rport != NULL;
1699 rdata->pnode = NULL;
1704 put_device(&rport->dev);
1707 if (phba->sli_rev == LPFC_SLI_REV4 &&
1708 active_rrqs_xri_bitmap)
1709 mempool_free(active_rrqs_xri_bitmap,
1710 phba->active_rrq_pool);
1715 * lpfc_end_rscn - Check and handle more rscn for a vport
1716 * @vport: pointer to a host virtual N_Port data structure.
1718 * This routine checks whether more Registration State Change
1719 * Notifications (RSCNs) came in while the discovery state machine was in
1720 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1721 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1722 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1723 * handling the RSCNs.
1726 lpfc_end_rscn(struct lpfc_vport *vport)
1728 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1730 if (vport->fc_flag & FC_RSCN_MODE) {
1732 * Check to see if more RSCNs came in while we were
1733 * processing this one.
1735 if (vport->fc_rscn_id_cnt ||
1736 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1737 lpfc_els_handle_rscn(vport);
1739 spin_lock_irq(shost->host_lock);
1740 vport->fc_flag &= ~FC_RSCN_MODE;
1741 spin_unlock_irq(shost->host_lock);
1747 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1748 * @phba: pointer to lpfc hba data structure.
1749 * @cmdiocb: pointer to lpfc command iocb data structure.
1750 * @rspiocb: pointer to lpfc response iocb data structure.
1752 * This routine will call the clear rrq function to free the rrq and
1753 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1754 * exist then the clear_rrq is still called because the rrq needs to
1759 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1760 struct lpfc_iocbq *rspiocb)
1762 struct lpfc_vport *vport = cmdiocb->vport;
1764 struct lpfc_nodelist *ndlp;
1765 struct lpfc_node_rrq *rrq;
1767 /* we pass cmdiocb to state machine which needs rspiocb as well */
1768 rrq = cmdiocb->context_un.rrq;
1769 cmdiocb->context_un.rsp_iocb = rspiocb;
1771 irsp = &rspiocb->iocb;
1772 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1773 "RRQ cmpl: status:x%x/x%x did:x%x",
1774 irsp->ulpStatus, irsp->un.ulpWord[4],
1775 irsp->un.elsreq64.remoteID);
1777 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1778 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) {
1779 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1780 "2882 RRQ completes to NPort x%x "
1781 "with no ndlp. Data: x%x x%x x%x\n",
1782 irsp->un.elsreq64.remoteID,
1783 irsp->ulpStatus, irsp->un.ulpWord[4],
1788 /* rrq completes to NPort <nlp_DID> */
1789 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1790 "2880 RRQ completes to NPort x%x "
1791 "Data: x%x x%x x%x x%x x%x\n",
1792 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1793 irsp->ulpTimeout, rrq->xritag, rrq->rxid);
1795 if (irsp->ulpStatus) {
1796 /* Check for retry */
1797 /* RRQ failed Don't print the vport to vport rjts */
1798 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1799 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1800 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1801 (phba)->pport->cfg_log_verbose & LOG_ELS)
1802 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1803 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1804 ndlp->nlp_DID, irsp->ulpStatus,
1805 irsp->un.ulpWord[4]);
1809 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1810 lpfc_els_free_iocb(phba, cmdiocb);
1814 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1815 * @phba: pointer to lpfc hba data structure.
1816 * @cmdiocb: pointer to lpfc command iocb data structure.
1817 * @rspiocb: pointer to lpfc response iocb data structure.
1819 * This routine is the completion callback function for issuing the Port
1820 * Login (PLOGI) command. For PLOGI completion, there must be an active
1821 * ndlp on the vport node list that matches the remote node ID from the
1822 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1823 * ignored and command IOCB released. The PLOGI response IOCB status is
1824 * checked for error conditons. If there is error status reported, PLOGI
1825 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1826 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1827 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1828 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1829 * there are additional N_Port nodes with the vport that need to perform
1830 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1834 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1835 struct lpfc_iocbq *rspiocb)
1837 struct lpfc_vport *vport = cmdiocb->vport;
1838 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1840 struct lpfc_nodelist *ndlp;
1841 struct lpfc_dmabuf *prsp;
1844 /* we pass cmdiocb to state machine which needs rspiocb as well */
1845 cmdiocb->context_un.rsp_iocb = rspiocb;
1847 irsp = &rspiocb->iocb;
1848 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1849 "PLOGI cmpl: status:x%x/x%x did:x%x",
1850 irsp->ulpStatus, irsp->un.ulpWord[4],
1851 irsp->un.elsreq64.remoteID);
1853 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1854 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
1855 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1856 "0136 PLOGI completes to NPort x%x "
1857 "with no ndlp. Data: x%x x%x x%x\n",
1858 irsp->un.elsreq64.remoteID,
1859 irsp->ulpStatus, irsp->un.ulpWord[4],
1864 /* Since ndlp can be freed in the disc state machine, note if this node
1865 * is being used during discovery.
1867 spin_lock_irq(shost->host_lock);
1868 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1869 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1870 spin_unlock_irq(shost->host_lock);
1873 /* PLOGI completes to NPort <nlp_DID> */
1874 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1875 "0102 PLOGI completes to NPort x%06x "
1876 "Data: x%x x%x x%x x%x x%x\n",
1877 ndlp->nlp_DID, ndlp->nlp_fc4_type,
1878 irsp->ulpStatus, irsp->un.ulpWord[4],
1879 disc, vport->num_disc_nodes);
1881 /* Check to see if link went down during discovery */
1882 if (lpfc_els_chk_latt(vport)) {
1883 spin_lock_irq(shost->host_lock);
1884 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1885 spin_unlock_irq(shost->host_lock);
1889 if (irsp->ulpStatus) {
1890 /* Check for retry */
1891 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1892 /* ELS command is being retried */
1894 spin_lock_irq(shost->host_lock);
1895 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1896 spin_unlock_irq(shost->host_lock);
1900 /* PLOGI failed Don't print the vport to vport rjts */
1901 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1902 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1903 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1904 (phba)->pport->cfg_log_verbose & LOG_ELS)
1905 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1906 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1907 ndlp->nlp_DID, irsp->ulpStatus,
1908 irsp->un.ulpWord[4]);
1909 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1910 if (lpfc_error_lost_link(irsp))
1911 rc = NLP_STE_FREED_NODE;
1913 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1914 NLP_EVT_CMPL_PLOGI);
1916 /* Good status, call state machine */
1917 prsp = list_entry(((struct lpfc_dmabuf *)
1918 cmdiocb->context2)->list.next,
1919 struct lpfc_dmabuf, list);
1920 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
1921 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1922 NLP_EVT_CMPL_PLOGI);
1925 if (disc && vport->num_disc_nodes) {
1926 /* Check to see if there are more PLOGIs to be sent */
1927 lpfc_more_plogi(vport);
1929 if (vport->num_disc_nodes == 0) {
1930 spin_lock_irq(shost->host_lock);
1931 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1932 spin_unlock_irq(shost->host_lock);
1934 lpfc_can_disctmo(vport);
1935 lpfc_end_rscn(vport);
1940 lpfc_els_free_iocb(phba, cmdiocb);
1945 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1946 * @vport: pointer to a host virtual N_Port data structure.
1947 * @did: destination port identifier.
1948 * @retry: number of retries to the command IOCB.
1950 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1951 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1952 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1953 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1954 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1956 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1957 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1958 * will be stored into the context1 field of the IOCB for the completion
1959 * callback function to the PLOGI ELS command.
1962 * 0 - Successfully issued a plogi for @vport
1963 * 1 - failed to issue a plogi for @vport
1966 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
1968 struct lpfc_hba *phba = vport->phba;
1969 struct serv_parm *sp;
1970 struct lpfc_nodelist *ndlp;
1971 struct lpfc_iocbq *elsiocb;
1976 ndlp = lpfc_findnode_did(vport, did);
1977 if (ndlp && !NLP_CHK_NODE_ACT(ndlp))
1980 /* If ndlp is not NULL, we will bump the reference count on it */
1981 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1982 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
1987 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1989 /* For PLOGI request, remainder of payload is service parameters */
1990 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
1991 pcmd += sizeof(uint32_t);
1992 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1993 sp = (struct serv_parm *) pcmd;
1996 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1997 * to device on remote loops work.
1999 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
2000 sp->cmn.altBbCredit = 1;
2002 if (sp->cmn.fcphLow < FC_PH_4_3)
2003 sp->cmn.fcphLow = FC_PH_4_3;
2005 if (sp->cmn.fcphHigh < FC_PH3)
2006 sp->cmn.fcphHigh = FC_PH3;
2008 sp->cmn.valid_vendor_ver_level = 0;
2009 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
2011 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2012 "Issue PLOGI: did:x%x",
2015 /* If our firmware supports this feature, convey that
2016 * information to the target using the vendor specific field.
2018 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
2019 sp->cmn.valid_vendor_ver_level = 1;
2020 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
2021 sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
2024 phba->fc_stat.elsXmitPLOGI++;
2025 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
2026 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2028 if (ret == IOCB_ERROR) {
2029 lpfc_els_free_iocb(phba, elsiocb);
2036 * lpfc_cmpl_els_prli - Completion callback function for prli
2037 * @phba: pointer to lpfc hba data structure.
2038 * @cmdiocb: pointer to lpfc command iocb data structure.
2039 * @rspiocb: pointer to lpfc response iocb data structure.
2041 * This routine is the completion callback function for a Process Login
2042 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2043 * status. If there is error status reported, PRLI retry shall be attempted
2044 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2045 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2046 * ndlp to mark the PRLI completion.
2049 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2050 struct lpfc_iocbq *rspiocb)
2052 struct lpfc_vport *vport = cmdiocb->vport;
2053 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2055 struct lpfc_nodelist *ndlp;
2057 /* we pass cmdiocb to state machine which needs rspiocb as well */
2058 cmdiocb->context_un.rsp_iocb = rspiocb;
2060 irsp = &(rspiocb->iocb);
2061 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2062 spin_lock_irq(shost->host_lock);
2063 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2064 spin_unlock_irq(shost->host_lock);
2066 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2067 "PRLI cmpl: status:x%x/x%x did:x%x",
2068 irsp->ulpStatus, irsp->un.ulpWord[4],
2071 /* Ddriver supports multiple FC4 types. Counters matter. */
2072 vport->fc_prli_sent--;
2074 /* PRLI completes to NPort <nlp_DID> */
2075 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2076 "0103 PRLI completes to NPort x%06x "
2077 "Data: x%x x%x x%x x%x\n",
2078 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2079 vport->num_disc_nodes, ndlp->fc4_prli_sent);
2081 /* Check to see if link went down during discovery */
2082 if (lpfc_els_chk_latt(vport))
2085 if (irsp->ulpStatus) {
2086 /* Check for retry */
2087 ndlp->fc4_prli_sent--;
2088 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2089 /* ELS command is being retried */
2094 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2095 "2754 PRLI failure DID:%06X Status:x%x/x%x, "
2097 ndlp->nlp_DID, irsp->ulpStatus,
2098 irsp->un.ulpWord[4], ndlp->fc4_prli_sent);
2100 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2101 if (lpfc_error_lost_link(irsp))
2104 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2107 /* Good status, call state machine. However, if another
2108 * PRLI is outstanding, don't call the state machine
2109 * because final disposition to Mapped or Unmapped is
2112 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2116 lpfc_els_free_iocb(phba, cmdiocb);
2121 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2122 * @vport: pointer to a host virtual N_Port data structure.
2123 * @ndlp: pointer to a node-list data structure.
2124 * @retry: number of retries to the command IOCB.
2126 * This routine issues a Process Login (PRLI) ELS command for the
2127 * @vport. The PRLI service parameters are set up in the payload of the
2128 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2129 * is put to the IOCB completion callback func field before invoking the
2130 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2132 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2133 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2134 * will be stored into the context1 field of the IOCB for the completion
2135 * callback function to the PRLI ELS command.
2138 * 0 - successfully issued prli iocb command for @vport
2139 * 1 - failed to issue prli iocb command for @vport
2142 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2145 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2146 struct lpfc_hba *phba = vport->phba;
2148 struct lpfc_nvme_prli *npr_nvme;
2149 struct lpfc_iocbq *elsiocb;
2152 u32 local_nlp_type, elscmd;
2154 local_nlp_type = ndlp->nlp_fc4_type;
2157 if (local_nlp_type & NLP_FC4_FCP) {
2158 /* Payload is 4 + 16 = 20 x14 bytes. */
2159 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2160 elscmd = ELS_CMD_PRLI;
2161 } else if (local_nlp_type & NLP_FC4_NVME) {
2162 /* Payload is 4 + 20 = 24 x18 bytes. */
2163 cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli));
2164 elscmd = ELS_CMD_NVMEPRLI;
2166 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2167 "3083 Unknown FC_TYPE x%x ndlp x%06x\n",
2168 ndlp->nlp_fc4_type, ndlp->nlp_DID);
2172 /* SLI3 ports don't support NVME. If this rport is a strict NVME
2173 * FC4 type, implicitly LOGO.
2175 if (phba->sli_rev == LPFC_SLI_REV3 &&
2176 ndlp->nlp_fc4_type == NLP_FC4_NVME) {
2177 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2178 "3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n",
2180 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
2184 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2185 ndlp->nlp_DID, elscmd);
2189 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2191 /* For PRLI request, remainder of payload is service parameters */
2192 memset(pcmd, 0, cmdsize);
2194 if (local_nlp_type & NLP_FC4_FCP) {
2195 /* Remainder of payload is FCP PRLI parameter page.
2196 * Note: this data structure is defined as
2197 * BE/LE in the structure definition so no
2198 * byte swap call is made.
2200 *((uint32_t *)(pcmd)) = ELS_CMD_PRLI;
2201 pcmd += sizeof(uint32_t);
2205 * If our firmware version is 3.20 or later,
2206 * set the following bits for FC-TAPE support.
2208 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2209 npr->ConfmComplAllowed = 1;
2211 npr->TaskRetryIdReq = 1;
2213 npr->estabImagePair = 1;
2214 npr->readXferRdyDis = 1;
2215 if (vport->cfg_first_burst_size)
2216 npr->writeXferRdyDis = 1;
2218 /* For FCP support */
2219 npr->prliType = PRLI_FCP_TYPE;
2220 npr->initiatorFunc = 1;
2221 elsiocb->iocb_flag |= LPFC_PRLI_FCP_REQ;
2223 /* Remove FCP type - processed. */
2224 local_nlp_type &= ~NLP_FC4_FCP;
2225 } else if (local_nlp_type & NLP_FC4_NVME) {
2226 /* Remainder of payload is NVME PRLI parameter page.
2227 * This data structure is the newer definition that
2228 * uses bf macros so a byte swap is required.
2230 *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI;
2231 pcmd += sizeof(uint32_t);
2232 npr_nvme = (struct lpfc_nvme_prli *)pcmd;
2233 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
2234 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
2236 /* Only initiators request first burst. */
2237 if ((phba->cfg_nvme_enable_fb) &&
2238 !phba->nvmet_support)
2239 bf_set(prli_fba, npr_nvme, 1);
2241 if (phba->nvmet_support) {
2242 bf_set(prli_tgt, npr_nvme, 1);
2243 bf_set(prli_disc, npr_nvme, 1);
2246 bf_set(prli_init, npr_nvme, 1);
2248 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
2249 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
2250 elsiocb->iocb_flag |= LPFC_PRLI_NVME_REQ;
2252 /* Remove NVME type - processed. */
2253 local_nlp_type &= ~NLP_FC4_NVME;
2256 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2257 "Issue PRLI: did:x%x",
2258 ndlp->nlp_DID, 0, 0);
2260 phba->fc_stat.elsXmitPRLI++;
2261 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
2262 spin_lock_irq(shost->host_lock);
2263 ndlp->nlp_flag |= NLP_PRLI_SND;
2264 spin_unlock_irq(shost->host_lock);
2265 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2267 spin_lock_irq(shost->host_lock);
2268 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2269 spin_unlock_irq(shost->host_lock);
2270 lpfc_els_free_iocb(phba, elsiocb);
2274 /* The vport counters are used for lpfc_scan_finished, but
2275 * the ndlp is used to track outstanding PRLIs for different
2278 vport->fc_prli_sent++;
2279 ndlp->fc4_prli_sent++;
2281 /* The driver supports 2 FC4 types. Make sure
2282 * a PRLI is issued for all types before exiting.
2284 if (phba->sli_rev == LPFC_SLI_REV4 &&
2285 local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME))
2286 goto send_next_prli;
2292 * lpfc_rscn_disc - Perform rscn discovery for a vport
2293 * @vport: pointer to a host virtual N_Port data structure.
2295 * This routine performs Registration State Change Notification (RSCN)
2296 * discovery for a @vport. If the @vport's node port recovery count is not
2297 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2298 * the nodes that need recovery. If none of the PLOGI were needed through
2299 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2300 * invoked to check and handle possible more RSCN came in during the period
2301 * of processing the current ones.
2304 lpfc_rscn_disc(struct lpfc_vport *vport)
2306 lpfc_can_disctmo(vport);
2308 /* RSCN discovery */
2309 /* go thru NPR nodes and issue ELS PLOGIs */
2310 if (vport->fc_npr_cnt)
2311 if (lpfc_els_disc_plogi(vport))
2314 lpfc_end_rscn(vport);
2318 * lpfc_adisc_done - Complete the adisc phase of discovery
2319 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2321 * This function is called when the final ADISC is completed during discovery.
2322 * This function handles clearing link attention or issuing reg_vpi depending
2323 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2325 * This function is called with no locks held.
2328 lpfc_adisc_done(struct lpfc_vport *vport)
2330 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2331 struct lpfc_hba *phba = vport->phba;
2334 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2335 * and continue discovery.
2337 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2338 !(vport->fc_flag & FC_RSCN_MODE) &&
2339 (phba->sli_rev < LPFC_SLI_REV4)) {
2340 /* The ADISCs are complete. Doesn't matter if they
2341 * succeeded or failed because the ADISC completion
2342 * routine guarantees to call the state machine and
2343 * the RPI is either unregistered (failed ADISC response)
2344 * or the RPI is still valid and the node is marked
2345 * mapped for a target. The exchanges should be in the
2346 * correct state. This code is specific to SLI3.
2348 lpfc_issue_clear_la(phba, vport);
2349 lpfc_issue_reg_vpi(phba, vport);
2353 * For SLI2, we need to set port_state to READY
2354 * and continue discovery.
2356 if (vport->port_state < LPFC_VPORT_READY) {
2357 /* If we get here, there is nothing to ADISC */
2358 lpfc_issue_clear_la(phba, vport);
2359 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2360 vport->num_disc_nodes = 0;
2361 /* go thru NPR list, issue ELS PLOGIs */
2362 if (vport->fc_npr_cnt)
2363 lpfc_els_disc_plogi(vport);
2364 if (!vport->num_disc_nodes) {
2365 spin_lock_irq(shost->host_lock);
2366 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2367 spin_unlock_irq(shost->host_lock);
2368 lpfc_can_disctmo(vport);
2369 lpfc_end_rscn(vport);
2372 vport->port_state = LPFC_VPORT_READY;
2374 lpfc_rscn_disc(vport);
2378 * lpfc_more_adisc - Issue more adisc as needed
2379 * @vport: pointer to a host virtual N_Port data structure.
2381 * This routine determines whether there are more ndlps on a @vport
2382 * node list need to have Address Discover (ADISC) issued. If so, it will
2383 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2384 * remaining nodes which need to have ADISC sent.
2387 lpfc_more_adisc(struct lpfc_vport *vport)
2389 if (vport->num_disc_nodes)
2390 vport->num_disc_nodes--;
2391 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2392 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2393 "0210 Continue discovery with %d ADISCs to go "
2394 "Data: x%x x%x x%x\n",
2395 vport->num_disc_nodes, vport->fc_adisc_cnt,
2396 vport->fc_flag, vport->port_state);
2397 /* Check to see if there are more ADISCs to be sent */
2398 if (vport->fc_flag & FC_NLP_MORE) {
2399 lpfc_set_disctmo(vport);
2400 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2401 lpfc_els_disc_adisc(vport);
2403 if (!vport->num_disc_nodes)
2404 lpfc_adisc_done(vport);
2409 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2410 * @phba: pointer to lpfc hba data structure.
2411 * @cmdiocb: pointer to lpfc command iocb data structure.
2412 * @rspiocb: pointer to lpfc response iocb data structure.
2414 * This routine is the completion function for issuing the Address Discover
2415 * (ADISC) command. It first checks to see whether link went down during
2416 * the discovery process. If so, the node will be marked as node port
2417 * recovery for issuing discover IOCB by the link attention handler and
2418 * exit. Otherwise, the response status is checked. If error was reported
2419 * in the response status, the ADISC command shall be retried by invoking
2420 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2421 * the response status, the state machine is invoked to set transition
2422 * with respect to NLP_EVT_CMPL_ADISC event.
2425 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2426 struct lpfc_iocbq *rspiocb)
2428 struct lpfc_vport *vport = cmdiocb->vport;
2429 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2431 struct lpfc_nodelist *ndlp;
2434 /* we pass cmdiocb to state machine which needs rspiocb as well */
2435 cmdiocb->context_un.rsp_iocb = rspiocb;
2437 irsp = &(rspiocb->iocb);
2438 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2440 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2441 "ADISC cmpl: status:x%x/x%x did:x%x",
2442 irsp->ulpStatus, irsp->un.ulpWord[4],
2445 /* Since ndlp can be freed in the disc state machine, note if this node
2446 * is being used during discovery.
2448 spin_lock_irq(shost->host_lock);
2449 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2450 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2451 spin_unlock_irq(shost->host_lock);
2452 /* ADISC completes to NPort <nlp_DID> */
2453 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2454 "0104 ADISC completes to NPort x%x "
2455 "Data: x%x x%x x%x x%x x%x\n",
2456 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2457 irsp->ulpTimeout, disc, vport->num_disc_nodes);
2458 /* Check to see if link went down during discovery */
2459 if (lpfc_els_chk_latt(vport)) {
2460 spin_lock_irq(shost->host_lock);
2461 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2462 spin_unlock_irq(shost->host_lock);
2466 if (irsp->ulpStatus) {
2467 /* Check for retry */
2468 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2469 /* ELS command is being retried */
2471 spin_lock_irq(shost->host_lock);
2472 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2473 spin_unlock_irq(shost->host_lock);
2474 lpfc_set_disctmo(vport);
2479 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2480 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2481 ndlp->nlp_DID, irsp->ulpStatus,
2482 irsp->un.ulpWord[4]);
2483 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2484 if (!lpfc_error_lost_link(irsp))
2485 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2486 NLP_EVT_CMPL_ADISC);
2488 /* Good status, call state machine */
2489 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2490 NLP_EVT_CMPL_ADISC);
2492 /* Check to see if there are more ADISCs to be sent */
2493 if (disc && vport->num_disc_nodes)
2494 lpfc_more_adisc(vport);
2496 lpfc_els_free_iocb(phba, cmdiocb);
2501 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2502 * @vport: pointer to a virtual N_Port data structure.
2503 * @ndlp: pointer to a node-list data structure.
2504 * @retry: number of retries to the command IOCB.
2506 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2507 * @vport. It prepares the payload of the ADISC ELS command, updates the
2508 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2509 * to issue the ADISC ELS command.
2511 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2512 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2513 * will be stored into the context1 field of the IOCB for the completion
2514 * callback function to the ADISC ELS command.
2517 * 0 - successfully issued adisc
2518 * 1 - failed to issue adisc
2521 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2524 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2525 struct lpfc_hba *phba = vport->phba;
2527 struct lpfc_iocbq *elsiocb;
2531 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2532 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2533 ndlp->nlp_DID, ELS_CMD_ADISC);
2537 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2539 /* For ADISC request, remainder of payload is service parameters */
2540 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
2541 pcmd += sizeof(uint32_t);
2543 /* Fill in ADISC payload */
2544 ap = (ADISC *) pcmd;
2545 ap->hardAL_PA = phba->fc_pref_ALPA;
2546 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2547 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2548 ap->DID = be32_to_cpu(vport->fc_myDID);
2550 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2551 "Issue ADISC: did:x%x",
2552 ndlp->nlp_DID, 0, 0);
2554 phba->fc_stat.elsXmitADISC++;
2555 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
2556 spin_lock_irq(shost->host_lock);
2557 ndlp->nlp_flag |= NLP_ADISC_SND;
2558 spin_unlock_irq(shost->host_lock);
2559 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2561 spin_lock_irq(shost->host_lock);
2562 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2563 spin_unlock_irq(shost->host_lock);
2564 lpfc_els_free_iocb(phba, elsiocb);
2571 * lpfc_cmpl_els_logo - Completion callback function for logo
2572 * @phba: pointer to lpfc hba data structure.
2573 * @cmdiocb: pointer to lpfc command iocb data structure.
2574 * @rspiocb: pointer to lpfc response iocb data structure.
2576 * This routine is the completion function for issuing the ELS Logout (LOGO)
2577 * command. If no error status was reported from the LOGO response, the
2578 * state machine of the associated ndlp shall be invoked for transition with
2579 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2580 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2583 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2584 struct lpfc_iocbq *rspiocb)
2586 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2587 struct lpfc_vport *vport = ndlp->vport;
2588 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2590 struct lpfcMboxq *mbox;
2591 unsigned long flags;
2592 uint32_t skip_recovery = 0;
2594 /* we pass cmdiocb to state machine which needs rspiocb as well */
2595 cmdiocb->context_un.rsp_iocb = rspiocb;
2597 irsp = &(rspiocb->iocb);
2598 spin_lock_irq(shost->host_lock);
2599 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2600 spin_unlock_irq(shost->host_lock);
2602 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2603 "LOGO cmpl: status:x%x/x%x did:x%x",
2604 irsp->ulpStatus, irsp->un.ulpWord[4],
2607 /* LOGO completes to NPort <nlp_DID> */
2608 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2609 "0105 LOGO completes to NPort x%x "
2610 "Data: x%x x%x x%x x%x\n",
2611 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2612 irsp->ulpTimeout, vport->num_disc_nodes);
2614 if (lpfc_els_chk_latt(vport)) {
2619 /* Check to see if link went down during discovery */
2620 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
2621 /* NLP_EVT_DEVICE_RM should unregister the RPI
2622 * which should abort all outstanding IOs.
2624 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2630 if (irsp->ulpStatus) {
2631 /* Check for retry */
2632 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2633 /* ELS command is being retried */
2638 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2639 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2640 ndlp->nlp_DID, irsp->ulpStatus,
2641 irsp->un.ulpWord[4]);
2642 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2643 if (lpfc_error_lost_link(irsp)) {
2649 /* Call state machine. This will unregister the rpi if needed. */
2650 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
2653 lpfc_els_free_iocb(phba, cmdiocb);
2654 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2655 if ((vport->fc_flag & FC_PT2PT) &&
2656 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
2657 phba->pport->fc_myDID = 0;
2659 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
2660 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
2661 if (phba->nvmet_support)
2662 lpfc_nvmet_update_targetport(phba);
2664 lpfc_nvme_update_localport(phba->pport);
2667 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2669 lpfc_config_link(phba, mbox);
2670 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2671 mbox->vport = vport;
2672 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
2674 mempool_free(mbox, phba->mbox_mem_pool);
2681 * If the node is a target, the handling attempts to recover the port.
2682 * For any other port type, the rpi is unregistered as an implicit
2685 if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
2686 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2687 spin_lock_irqsave(shost->host_lock, flags);
2688 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2689 spin_unlock_irqrestore(shost->host_lock, flags);
2691 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2692 "3187 LOGO completes to NPort x%x: Start "
2693 "Recovery Data: x%x x%x x%x x%x\n",
2694 ndlp->nlp_DID, irsp->ulpStatus,
2695 irsp->un.ulpWord[4], irsp->ulpTimeout,
2696 vport->num_disc_nodes);
2697 lpfc_disc_start(vport);
2703 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2704 * @vport: pointer to a virtual N_Port data structure.
2705 * @ndlp: pointer to a node-list data structure.
2706 * @retry: number of retries to the command IOCB.
2708 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2709 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2710 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2711 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2713 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2714 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2715 * will be stored into the context1 field of the IOCB for the completion
2716 * callback function to the LOGO ELS command.
2719 * 0 - successfully issued logo
2720 * 1 - failed to issue logo
2723 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2726 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2727 struct lpfc_hba *phba = vport->phba;
2728 struct lpfc_iocbq *elsiocb;
2733 spin_lock_irq(shost->host_lock);
2734 if (ndlp->nlp_flag & NLP_LOGO_SND) {
2735 spin_unlock_irq(shost->host_lock);
2738 spin_unlock_irq(shost->host_lock);
2740 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
2741 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2742 ndlp->nlp_DID, ELS_CMD_LOGO);
2746 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2747 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
2748 pcmd += sizeof(uint32_t);
2750 /* Fill in LOGO payload */
2751 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
2752 pcmd += sizeof(uint32_t);
2753 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
2755 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2756 "Issue LOGO: did:x%x",
2757 ndlp->nlp_DID, 0, 0);
2760 * If we are issuing a LOGO, we may try to recover the remote NPort
2761 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2762 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2763 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2764 * for that ELS cmd. To avoid this situation, lets get rid of the
2765 * RPI right now, before any ELS cmds are sent.
2767 spin_lock_irq(shost->host_lock);
2768 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
2769 spin_unlock_irq(shost->host_lock);
2770 if (lpfc_unreg_rpi(vport, ndlp)) {
2771 lpfc_els_free_iocb(phba, elsiocb);
2775 phba->fc_stat.elsXmitLOGO++;
2776 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
2777 spin_lock_irq(shost->host_lock);
2778 ndlp->nlp_flag |= NLP_LOGO_SND;
2779 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
2780 spin_unlock_irq(shost->host_lock);
2781 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2783 if (rc == IOCB_ERROR) {
2784 spin_lock_irq(shost->host_lock);
2785 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2786 spin_unlock_irq(shost->host_lock);
2787 lpfc_els_free_iocb(phba, elsiocb);
2794 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2795 * @phba: pointer to lpfc hba data structure.
2796 * @cmdiocb: pointer to lpfc command iocb data structure.
2797 * @rspiocb: pointer to lpfc response iocb data structure.
2799 * This routine is a generic completion callback function for ELS commands.
2800 * Specifically, it is the callback function which does not need to perform
2801 * any command specific operations. It is currently used by the ELS command
2802 * issuing routines for the ELS State Change Request (SCR),
2803 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2804 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2805 * certain debug loggings, this callback function simply invokes the
2806 * lpfc_els_chk_latt() routine to check whether link went down during the
2807 * discovery process.
2810 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2811 struct lpfc_iocbq *rspiocb)
2813 struct lpfc_vport *vport = cmdiocb->vport;
2816 irsp = &rspiocb->iocb;
2818 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2819 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2820 irsp->ulpStatus, irsp->un.ulpWord[4],
2821 irsp->un.elsreq64.remoteID);
2822 /* ELS cmd tag <ulpIoTag> completes */
2823 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2824 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2825 irsp->ulpIoTag, irsp->ulpStatus,
2826 irsp->un.ulpWord[4], irsp->ulpTimeout);
2827 /* Check to see if link went down during discovery */
2828 lpfc_els_chk_latt(vport);
2829 lpfc_els_free_iocb(phba, cmdiocb);
2834 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2835 * @vport: pointer to a host virtual N_Port data structure.
2836 * @nportid: N_Port identifier to the remote node.
2837 * @retry: number of retries to the command IOCB.
2839 * This routine issues a State Change Request (SCR) to a fabric node
2840 * on a @vport. The remote node @nportid is passed into the function. It
2841 * first search the @vport node list to find the matching ndlp. If no such
2842 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2843 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2844 * routine is invoked to send the SCR IOCB.
2846 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2847 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2848 * will be stored into the context1 field of the IOCB for the completion
2849 * callback function to the SCR ELS command.
2852 * 0 - Successfully issued scr command
2853 * 1 - Failed to issue scr command
2856 lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2858 struct lpfc_hba *phba = vport->phba;
2859 struct lpfc_iocbq *elsiocb;
2862 struct lpfc_nodelist *ndlp;
2864 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
2866 ndlp = lpfc_findnode_did(vport, nportid);
2868 ndlp = lpfc_nlp_init(vport, nportid);
2871 lpfc_enqueue_node(vport, ndlp);
2872 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2873 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2878 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2879 ndlp->nlp_DID, ELS_CMD_SCR);
2882 /* This will trigger the release of the node just
2889 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2891 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
2892 pcmd += sizeof(uint32_t);
2894 /* For SCR, remainder of payload is SCR parameter page */
2895 memset(pcmd, 0, sizeof(SCR));
2896 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
2898 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2899 "Issue SCR: did:x%x",
2900 ndlp->nlp_DID, 0, 0);
2902 phba->fc_stat.elsXmitSCR++;
2903 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2904 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2906 /* The additional lpfc_nlp_put will cause the following
2907 * lpfc_els_free_iocb routine to trigger the rlease of
2911 lpfc_els_free_iocb(phba, elsiocb);
2914 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2915 * trigger the release of node.
2923 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2924 * @vport: pointer to a host virtual N_Port data structure.
2925 * @nportid: N_Port identifier to the remote node.
2926 * @retry: number of retries to the command IOCB.
2928 * This routine issues a Fibre Channel Address Resolution Response
2929 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2930 * is passed into the function. It first search the @vport node list to find
2931 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2932 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2933 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2935 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2936 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2937 * will be stored into the context1 field of the IOCB for the completion
2938 * callback function to the PARPR ELS command.
2941 * 0 - Successfully issued farpr command
2942 * 1 - Failed to issue farpr command
2945 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2947 struct lpfc_hba *phba = vport->phba;
2948 struct lpfc_iocbq *elsiocb;
2953 struct lpfc_nodelist *ondlp;
2954 struct lpfc_nodelist *ndlp;
2956 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
2958 ndlp = lpfc_findnode_did(vport, nportid);
2960 ndlp = lpfc_nlp_init(vport, nportid);
2963 lpfc_enqueue_node(vport, ndlp);
2964 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2965 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2970 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2971 ndlp->nlp_DID, ELS_CMD_RNID);
2973 /* This will trigger the release of the node just
2980 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2982 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
2983 pcmd += sizeof(uint32_t);
2985 /* Fill in FARPR payload */
2986 fp = (FARP *) (pcmd);
2987 memset(fp, 0, sizeof(FARP));
2988 lp = (uint32_t *) pcmd;
2989 *lp++ = be32_to_cpu(nportid);
2990 *lp++ = be32_to_cpu(vport->fc_myDID);
2992 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
2994 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
2995 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2996 ondlp = lpfc_findnode_did(vport, nportid);
2997 if (ondlp && NLP_CHK_NODE_ACT(ondlp)) {
2998 memcpy(&fp->OportName, &ondlp->nlp_portname,
2999 sizeof(struct lpfc_name));
3000 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
3001 sizeof(struct lpfc_name));
3004 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3005 "Issue FARPR: did:x%x",
3006 ndlp->nlp_DID, 0, 0);
3008 phba->fc_stat.elsXmitFARPR++;
3009 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
3010 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
3012 /* The additional lpfc_nlp_put will cause the following
3013 * lpfc_els_free_iocb routine to trigger the release of
3017 lpfc_els_free_iocb(phba, elsiocb);
3020 /* This will cause the callback-function lpfc_cmpl_els_cmd to
3021 * trigger the release of the node.
3028 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
3029 * @vport: pointer to a host virtual N_Port data structure.
3030 * @nlp: pointer to a node-list data structure.
3032 * This routine cancels the timer with a delayed IOCB-command retry for
3033 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
3034 * removes the ELS retry event if it presents. In addition, if the
3035 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
3036 * commands are sent for the @vport's nodes that require issuing discovery
3040 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
3042 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3043 struct lpfc_work_evt *evtp;
3045 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
3047 spin_lock_irq(shost->host_lock);
3048 nlp->nlp_flag &= ~NLP_DELAY_TMO;
3049 spin_unlock_irq(shost->host_lock);
3050 del_timer_sync(&nlp->nlp_delayfunc);
3051 nlp->nlp_last_elscmd = 0;
3052 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
3053 list_del_init(&nlp->els_retry_evt.evt_listp);
3054 /* Decrement nlp reference count held for the delayed retry */
3055 evtp = &nlp->els_retry_evt;
3056 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
3058 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
3059 spin_lock_irq(shost->host_lock);
3060 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
3061 spin_unlock_irq(shost->host_lock);
3062 if (vport->num_disc_nodes) {
3063 if (vport->port_state < LPFC_VPORT_READY) {
3064 /* Check if there are more ADISCs to be sent */
3065 lpfc_more_adisc(vport);
3067 /* Check if there are more PLOGIs to be sent */
3068 lpfc_more_plogi(vport);
3069 if (vport->num_disc_nodes == 0) {
3070 spin_lock_irq(shost->host_lock);
3071 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3072 spin_unlock_irq(shost->host_lock);
3073 lpfc_can_disctmo(vport);
3074 lpfc_end_rscn(vport);
3083 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
3084 * @ptr: holder for the pointer to the timer function associated data (ndlp).
3086 * This routine is invoked by the ndlp delayed-function timer to check
3087 * whether there is any pending ELS retry event(s) with the node. If not, it
3088 * simply returns. Otherwise, if there is at least one ELS delayed event, it
3089 * adds the delayed events to the HBA work list and invokes the
3090 * lpfc_worker_wake_up() routine to wake up worker thread to process the
3091 * event. Note that lpfc_nlp_get() is called before posting the event to
3092 * the work list to hold reference count of ndlp so that it guarantees the
3093 * reference to ndlp will still be available when the worker thread gets
3094 * to the event associated with the ndlp.
3097 lpfc_els_retry_delay(unsigned long ptr)
3099 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
3100 struct lpfc_vport *vport = ndlp->vport;
3101 struct lpfc_hba *phba = vport->phba;
3102 unsigned long flags;
3103 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
3105 spin_lock_irqsave(&phba->hbalock, flags);
3106 if (!list_empty(&evtp->evt_listp)) {
3107 spin_unlock_irqrestore(&phba->hbalock, flags);
3111 /* We need to hold the node by incrementing the reference
3112 * count until the queued work is done
3114 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
3115 if (evtp->evt_arg1) {
3116 evtp->evt = LPFC_EVT_ELS_RETRY;
3117 list_add_tail(&evtp->evt_listp, &phba->work_list);
3118 lpfc_worker_wake_up(phba);
3120 spin_unlock_irqrestore(&phba->hbalock, flags);
3125 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
3126 * @ndlp: pointer to a node-list data structure.
3128 * This routine is the worker-thread handler for processing the @ndlp delayed
3129 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3130 * the last ELS command from the associated ndlp and invokes the proper ELS
3131 * function according to the delayed ELS command to retry the command.
3134 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
3136 struct lpfc_vport *vport = ndlp->vport;
3137 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3138 uint32_t cmd, retry;
3140 spin_lock_irq(shost->host_lock);
3141 cmd = ndlp->nlp_last_elscmd;
3142 ndlp->nlp_last_elscmd = 0;
3144 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
3145 spin_unlock_irq(shost->host_lock);
3149 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3150 spin_unlock_irq(shost->host_lock);
3152 * If a discovery event readded nlp_delayfunc after timer
3153 * firing and before processing the timer, cancel the
3156 del_timer_sync(&ndlp->nlp_delayfunc);
3157 retry = ndlp->nlp_retry;
3158 ndlp->nlp_retry = 0;
3162 lpfc_issue_els_flogi(vport, ndlp, retry);
3165 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
3166 ndlp->nlp_prev_state = ndlp->nlp_state;
3167 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
3171 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
3172 ndlp->nlp_prev_state = ndlp->nlp_state;
3173 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3177 case ELS_CMD_NVMEPRLI:
3178 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
3179 ndlp->nlp_prev_state = ndlp->nlp_state;
3180 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3184 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
3185 ndlp->nlp_prev_state = ndlp->nlp_state;
3186 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3190 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
3191 lpfc_issue_els_fdisc(vport, ndlp, retry);
3198 * lpfc_els_retry - Make retry decision on an els command iocb
3199 * @phba: pointer to lpfc hba data structure.
3200 * @cmdiocb: pointer to lpfc command iocb data structure.
3201 * @rspiocb: pointer to lpfc response iocb data structure.
3203 * This routine makes a retry decision on an ELS command IOCB, which has
3204 * failed. The following ELS IOCBs use this function for retrying the command
3205 * when previously issued command responsed with error status: FLOGI, PLOGI,
3206 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3207 * returned error status, it makes the decision whether a retry shall be
3208 * issued for the command, and whether a retry shall be made immediately or
3209 * delayed. In the former case, the corresponding ELS command issuing-function
3210 * is called to retry the command. In the later case, the ELS command shall
3211 * be posted to the ndlp delayed event and delayed function timer set to the
3212 * ndlp for the delayed command issusing.
3215 * 0 - No retry of els command is made
3216 * 1 - Immediate or delayed retry of els command is made
3219 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3220 struct lpfc_iocbq *rspiocb)
3222 struct lpfc_vport *vport = cmdiocb->vport;
3223 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3224 IOCB_t *irsp = &rspiocb->iocb;
3225 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3226 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3229 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
3235 /* Note: context2 may be 0 for internal driver abort
3236 * of delays ELS command.
3239 if (pcmd && pcmd->virt) {
3240 elscmd = (uint32_t *) (pcmd->virt);
3244 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
3245 did = ndlp->nlp_DID;
3247 /* We should only hit this case for retrying PLOGI */
3248 did = irsp->un.elsreq64.remoteID;
3249 ndlp = lpfc_findnode_did(vport, did);
3250 if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp))
3251 && (cmd != ELS_CMD_PLOGI))
3255 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3256 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3257 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
3259 switch (irsp->ulpStatus) {
3260 case IOSTAT_FCP_RSP_ERROR:
3262 case IOSTAT_REMOTE_STOP:
3263 if (phba->sli_rev == LPFC_SLI_REV4) {
3264 /* This IO was aborted by the target, we don't
3265 * know the rxid and because we did not send the
3266 * ABTS we cannot generate and RRQ.
3268 lpfc_set_rrq_active(phba, ndlp,
3269 cmdiocb->sli4_lxritag, 0, 0);
3272 case IOSTAT_LOCAL_REJECT:
3273 switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
3274 case IOERR_LOOP_OPEN_FAILURE:
3275 if (cmd == ELS_CMD_FLOGI) {
3276 if (PCI_DEVICE_ID_HORNET ==
3277 phba->pcidev->device) {
3278 phba->fc_topology = LPFC_TOPOLOGY_LOOP;
3279 phba->pport->fc_myDID = 0;
3280 phba->alpa_map[0] = 0;
3281 phba->alpa_map[1] = 0;
3284 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
3289 case IOERR_ILLEGAL_COMMAND:
3290 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3291 "0124 Retry illegal cmd x%x "
3292 "retry:x%x delay:x%x\n",
3293 cmd, cmdiocb->retry, delay);
3295 /* All command's retry policy */
3297 if (cmdiocb->retry > 2)
3301 case IOERR_NO_RESOURCES:
3302 logerr = 1; /* HBA out of resources */
3304 if (cmdiocb->retry > 100)
3309 case IOERR_ILLEGAL_FRAME:
3314 case IOERR_SEQUENCE_TIMEOUT:
3315 case IOERR_INVALID_RPI:
3316 if (cmd == ELS_CMD_PLOGI &&
3317 did == NameServer_DID) {
3318 /* Continue forever if plogi to */
3319 /* the nameserver fails */
3328 case IOSTAT_NPORT_RJT:
3329 case IOSTAT_FABRIC_RJT:
3330 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
3336 case IOSTAT_NPORT_BSY:
3337 case IOSTAT_FABRIC_BSY:
3338 logerr = 1; /* Fabric / Remote NPort out of resources */
3343 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
3344 /* Added for Vendor specifc support
3345 * Just keep retrying for these Rsn / Exp codes
3347 switch (stat.un.b.lsRjtRsnCode) {
3348 case LSRJT_UNABLE_TPC:
3349 /* The driver has a VALID PLOGI but the rport has
3350 * rejected the PRLI - can't do it now. Delay
3351 * for 1 second and try again - don't care about
3354 if (cmd == ELS_CMD_PRLI || cmd == ELS_CMD_NVMEPRLI) {
3356 maxretry = lpfc_max_els_tries + 1;
3361 /* Legacy bug fix code for targets with PLOGI delays. */
3362 if (stat.un.b.lsRjtRsnCodeExp ==
3363 LSEXP_CMD_IN_PROGRESS) {
3364 if (cmd == ELS_CMD_PLOGI) {
3371 if (stat.un.b.lsRjtRsnCodeExp ==
3372 LSEXP_CANT_GIVE_DATA) {
3373 if (cmd == ELS_CMD_PLOGI) {
3380 if (cmd == ELS_CMD_PLOGI) {
3382 maxretry = lpfc_max_els_tries + 1;
3386 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3387 (cmd == ELS_CMD_FDISC) &&
3388 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
3389 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3390 "0125 FDISC Failed (x%x). "
3391 "Fabric out of resources\n",
3392 stat.un.lsRjtError);
3393 lpfc_vport_set_state(vport,
3394 FC_VPORT_NO_FABRIC_RSCS);
3398 case LSRJT_LOGICAL_BSY:
3399 if ((cmd == ELS_CMD_PLOGI) ||
3400 (cmd == ELS_CMD_PRLI) ||
3401 (cmd == ELS_CMD_NVMEPRLI)) {
3404 } else if (cmd == ELS_CMD_FDISC) {
3405 /* FDISC retry policy */
3407 if (cmdiocb->retry >= 32)
3413 case LSRJT_LOGICAL_ERR:
3414 /* There are some cases where switches return this
3415 * error when they are not ready and should be returning
3416 * Logical Busy. We should delay every time.
3418 if (cmd == ELS_CMD_FDISC &&
3419 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
3425 case LSRJT_PROTOCOL_ERR:
3426 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3427 (cmd == ELS_CMD_FDISC) &&
3428 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
3429 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
3431 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3432 "0122 FDISC Failed (x%x). "
3433 "Fabric Detected Bad WWN\n",
3434 stat.un.lsRjtError);
3435 lpfc_vport_set_state(vport,
3436 FC_VPORT_FABRIC_REJ_WWN);
3439 case LSRJT_VENDOR_UNIQUE:
3440 if ((stat.un.b.vendorUnique == 0x45) &&
3441 (cmd == ELS_CMD_FLOGI)) {
3448 case IOSTAT_INTERMED_RSP:
3456 if (did == FDMI_DID)
3459 if ((cmd == ELS_CMD_FLOGI) &&
3460 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
3461 !lpfc_error_lost_link(irsp)) {
3462 /* FLOGI retry policy */
3464 /* retry FLOGI forever */
3465 if (phba->link_flag != LS_LOOPBACK_MODE)
3470 if (cmdiocb->retry >= 100)
3472 else if (cmdiocb->retry >= 32)
3474 } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
3475 /* retry FDISCs every second up to devloss */
3477 maxretry = vport->cfg_devloss_tmo;
3482 if (maxretry && (cmdiocb->retry >= maxretry)) {
3483 phba->fc_stat.elsRetryExceeded++;
3487 if ((vport->load_flag & FC_UNLOADING) != 0)
3492 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
3493 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3494 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3495 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3496 "2849 Stop retry ELS command "
3497 "x%x to remote NPORT x%x, "
3498 "Data: x%x x%x\n", cmd, did,
3499 cmdiocb->retry, delay);
3504 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3505 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3506 "0107 Retry ELS command x%x to remote "
3507 "NPORT x%x Data: x%x x%x\n",
3508 cmd, did, cmdiocb->retry, delay);
3510 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
3511 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
3512 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
3513 IOERR_NO_RESOURCES))) {
3514 /* Don't reset timer for no resources */
3516 /* If discovery / RSCN timer is running, reset it */
3517 if (timer_pending(&vport->fc_disctmo) ||
3518 (vport->fc_flag & FC_RSCN_MODE))
3519 lpfc_set_disctmo(vport);
3522 phba->fc_stat.elsXmitRetry++;
3523 if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
3524 phba->fc_stat.elsDelayRetry++;
3525 ndlp->nlp_retry = cmdiocb->retry;
3527 /* delay is specified in milliseconds */
3528 mod_timer(&ndlp->nlp_delayfunc,
3529 jiffies + msecs_to_jiffies(delay));
3530 spin_lock_irq(shost->host_lock);
3531 ndlp->nlp_flag |= NLP_DELAY_TMO;
3532 spin_unlock_irq(shost->host_lock);
3534 ndlp->nlp_prev_state = ndlp->nlp_state;
3535 if ((cmd == ELS_CMD_PRLI) ||
3536 (cmd == ELS_CMD_NVMEPRLI))
3537 lpfc_nlp_set_state(vport, ndlp,
3538 NLP_STE_PRLI_ISSUE);
3540 lpfc_nlp_set_state(vport, ndlp,
3542 ndlp->nlp_last_elscmd = cmd;
3548 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
3551 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
3554 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3555 ndlp->nlp_prev_state = ndlp->nlp_state;
3556 lpfc_nlp_set_state(vport, ndlp,
3557 NLP_STE_PLOGI_ISSUE);
3559 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
3562 ndlp->nlp_prev_state = ndlp->nlp_state;
3563 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3564 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
3567 case ELS_CMD_NVMEPRLI:
3568 ndlp->nlp_prev_state = ndlp->nlp_state;
3569 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3570 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
3573 ndlp->nlp_prev_state = ndlp->nlp_state;
3574 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3575 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
3579 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3581 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3582 "0137 No retry ELS command x%x to remote "
3583 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3584 cmd, did, irsp->ulpStatus,
3585 irsp->un.ulpWord[4]);
3588 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3589 "0108 No retry ELS command x%x to remote "
3590 "NPORT x%x Retried:%d Error:x%x/%x\n",
3591 cmd, did, cmdiocb->retry, irsp->ulpStatus,
3592 irsp->un.ulpWord[4]);
3598 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3599 * @phba: pointer to lpfc hba data structure.
3600 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3602 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3603 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3604 * checks to see whether there is a lpfc DMA buffer associated with the
3605 * response of the command IOCB. If so, it will be released before releasing
3606 * the lpfc DMA buffer associated with the IOCB itself.
3609 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3612 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
3614 struct lpfc_dmabuf *buf_ptr;
3616 /* Free the response before processing the command. */
3617 if (!list_empty(&buf_ptr1->list)) {
3618 list_remove_head(&buf_ptr1->list, buf_ptr,
3621 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3624 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
3630 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3631 * @phba: pointer to lpfc hba data structure.
3632 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3634 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3635 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3639 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3642 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
3644 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3650 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3651 * @phba: pointer to lpfc hba data structure.
3652 * @elsiocb: pointer to lpfc els command iocb data structure.
3654 * This routine frees a command IOCB and its associated resources. The
3655 * command IOCB data structure contains the reference to various associated
3656 * resources, these fields must be set to NULL if the associated reference
3658 * context1 - reference to ndlp
3659 * context2 - reference to cmd
3660 * context2->next - reference to rsp
3661 * context3 - reference to bpl
3663 * It first properly decrements the reference count held on ndlp for the
3664 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3665 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3666 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3667 * adds the DMA buffer the @phba data structure for the delayed release.
3668 * If reference to the Buffer Pointer List (BPL) is present, the
3669 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3670 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3671 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3674 * 0 - Success (currently, always return 0)
3677 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
3679 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
3680 struct lpfc_nodelist *ndlp;
3682 ndlp = (struct lpfc_nodelist *)elsiocb->context1;
3684 if (ndlp->nlp_flag & NLP_DEFER_RM) {
3687 /* If the ndlp is not being used by another discovery
3690 if (!lpfc_nlp_not_used(ndlp)) {
3691 /* If ndlp is being used by another discovery
3692 * thread, just clear NLP_DEFER_RM
3694 ndlp->nlp_flag &= ~NLP_DEFER_RM;
3699 elsiocb->context1 = NULL;
3701 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3702 if (elsiocb->context2) {
3703 if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
3704 /* Firmware could still be in progress of DMAing
3705 * payload, so don't free data buffer till after
3708 elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
3709 buf_ptr = elsiocb->context2;
3710 elsiocb->context2 = NULL;
3713 spin_lock_irq(&phba->hbalock);
3714 if (!list_empty(&buf_ptr->list)) {
3715 list_remove_head(&buf_ptr->list,
3716 buf_ptr1, struct lpfc_dmabuf,
3718 INIT_LIST_HEAD(&buf_ptr1->list);
3719 list_add_tail(&buf_ptr1->list,
3723 INIT_LIST_HEAD(&buf_ptr->list);
3724 list_add_tail(&buf_ptr->list, &phba->elsbuf);
3726 spin_unlock_irq(&phba->hbalock);
3729 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
3730 lpfc_els_free_data(phba, buf_ptr1);
3731 elsiocb->context2 = NULL;
3735 if (elsiocb->context3) {
3736 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
3737 lpfc_els_free_bpl(phba, buf_ptr);
3738 elsiocb->context3 = NULL;
3740 lpfc_sli_release_iocbq(phba, elsiocb);
3745 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3746 * @phba: pointer to lpfc hba data structure.
3747 * @cmdiocb: pointer to lpfc command iocb data structure.
3748 * @rspiocb: pointer to lpfc response iocb data structure.
3750 * This routine is the completion callback function to the Logout (LOGO)
3751 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3752 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3753 * release the ndlp if it has the last reference remaining (reference count
3754 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3755 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3756 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3757 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3758 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3759 * IOCB data structure.
3762 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3763 struct lpfc_iocbq *rspiocb)
3765 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3766 struct lpfc_vport *vport = cmdiocb->vport;
3769 irsp = &rspiocb->iocb;
3770 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3771 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3772 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
3773 /* ACC to LOGO completes to NPort <nlp_DID> */
3774 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3775 "0109 ACC to LOGO completes to NPort x%x "
3776 "Data: x%x x%x x%x\n",
3777 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3780 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
3781 /* NPort Recovery mode or node is just allocated */
3782 if (!lpfc_nlp_not_used(ndlp)) {
3783 /* If the ndlp is being used by another discovery
3784 * thread, just unregister the RPI.
3786 lpfc_unreg_rpi(vport, ndlp);
3788 /* Indicate the node has already released, should
3789 * not reference to it from within lpfc_els_free_iocb.
3791 cmdiocb->context1 = NULL;
3796 * The driver received a LOGO from the rport and has ACK'd it.
3797 * At this point, the driver is done so release the IOCB
3799 lpfc_els_free_iocb(phba, cmdiocb);
3803 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3804 * @phba: pointer to lpfc hba data structure.
3805 * @pmb: pointer to the driver internal queue element for mailbox command.
3807 * This routine is the completion callback function for unregister default
3808 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3809 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3810 * decrements the ndlp reference count held for this completion callback
3811 * function. After that, it invokes the lpfc_nlp_not_used() to check
3812 * whether there is only one reference left on the ndlp. If so, it will
3813 * perform one more decrement and trigger the release of the ndlp.
3816 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3818 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3819 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3821 pmb->context1 = NULL;
3822 pmb->context2 = NULL;
3824 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3826 mempool_free(pmb, phba->mbox_mem_pool);
3828 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3829 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3830 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3831 kref_read(&ndlp->kref),
3832 ndlp->nlp_usg_map, ndlp);
3833 if (NLP_CHK_NODE_ACT(ndlp)) {
3835 /* This is the end of the default RPI cleanup logic for
3836 * this ndlp. If no other discovery threads are using
3837 * this ndlp, free all resources associated with it.
3839 lpfc_nlp_not_used(ndlp);
3841 lpfc_drop_node(ndlp->vport, ndlp);
3849 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3850 * @phba: pointer to lpfc hba data structure.
3851 * @cmdiocb: pointer to lpfc command iocb data structure.
3852 * @rspiocb: pointer to lpfc response iocb data structure.
3854 * This routine is the completion callback function for ELS Response IOCB
3855 * command. In normal case, this callback function just properly sets the
3856 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3857 * field in the command IOCB is not NULL, the referred mailbox command will
3858 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3859 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3860 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3861 * routine shall be invoked trying to release the ndlp if no other threads
3862 * are currently referring it.
3865 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3866 struct lpfc_iocbq *rspiocb)
3868 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3869 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
3870 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
3873 LPFC_MBOXQ_t *mbox = NULL;
3874 struct lpfc_dmabuf *mp = NULL;
3875 uint32_t ls_rjt = 0;
3877 irsp = &rspiocb->iocb;
3879 if (cmdiocb->context_un.mbox)
3880 mbox = cmdiocb->context_un.mbox;
3882 /* First determine if this is a LS_RJT cmpl. Note, this callback
3883 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3885 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
3886 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3887 (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
3888 /* A LS_RJT associated with Default RPI cleanup has its own
3889 * separate code path.
3891 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3895 /* Check to see if link went down during discovery */
3896 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
3898 mp = (struct lpfc_dmabuf *) mbox->context1;
3900 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3903 mempool_free(mbox, phba->mbox_mem_pool);
3905 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3906 (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3907 if (lpfc_nlp_not_used(ndlp)) {
3909 /* Indicate the node has already released,
3910 * should not reference to it from within
3911 * the routine lpfc_els_free_iocb.
3913 cmdiocb->context1 = NULL;
3918 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3919 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3920 irsp->ulpStatus, irsp->un.ulpWord[4],
3921 cmdiocb->iocb.un.elsreq64.remoteID);
3922 /* ELS response tag <ulpIoTag> completes */
3923 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3924 "0110 ELS response tag x%x completes "
3925 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3926 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
3927 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
3928 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3931 if ((rspiocb->iocb.ulpStatus == 0)
3932 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
3933 lpfc_unreg_rpi(vport, ndlp);
3934 /* Increment reference count to ndlp to hold the
3935 * reference to ndlp for the callback function.
3937 mbox->context2 = lpfc_nlp_get(ndlp);
3938 mbox->vport = vport;
3939 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
3940 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3941 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3944 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
3945 ndlp->nlp_prev_state = ndlp->nlp_state;
3946 lpfc_nlp_set_state(vport, ndlp,
3947 NLP_STE_REG_LOGIN_ISSUE);
3950 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
3951 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
3952 != MBX_NOT_FINISHED)
3955 /* Decrement the ndlp reference count we
3956 * set for this failed mailbox command.
3959 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3961 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3962 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3963 "0138 ELS rsp: Cannot issue reg_login for x%x "
3964 "Data: x%x x%x x%x\n",
3965 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3968 if (lpfc_nlp_not_used(ndlp)) {
3970 /* Indicate node has already been released,
3971 * should not reference to it from within
3972 * the routine lpfc_els_free_iocb.
3974 cmdiocb->context1 = NULL;
3977 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3978 if (!lpfc_error_lost_link(irsp) &&
3979 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
3980 if (lpfc_nlp_not_used(ndlp)) {
3982 /* Indicate node has already been
3983 * released, should not reference
3984 * to it from within the routine
3985 * lpfc_els_free_iocb.
3987 cmdiocb->context1 = NULL;
3991 mp = (struct lpfc_dmabuf *) mbox->context1;
3993 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3996 mempool_free(mbox, phba->mbox_mem_pool);
3999 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
4000 spin_lock_irq(shost->host_lock);
4001 ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
4002 spin_unlock_irq(shost->host_lock);
4004 /* If the node is not being used by another discovery thread,
4005 * and we are sending a reject, we are done with it.
4006 * Release driver reference count here and free associated
4010 if (lpfc_nlp_not_used(ndlp))
4011 /* Indicate node has already been released,
4012 * should not reference to it from within
4013 * the routine lpfc_els_free_iocb.
4015 cmdiocb->context1 = NULL;
4019 lpfc_els_free_iocb(phba, cmdiocb);
4024 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
4025 * @vport: pointer to a host virtual N_Port data structure.
4026 * @flag: the els command code to be accepted.
4027 * @oldiocb: pointer to the original lpfc command iocb data structure.
4028 * @ndlp: pointer to a node-list data structure.
4029 * @mbox: pointer to the driver internal queue element for mailbox command.
4031 * This routine prepares and issues an Accept (ACC) response IOCB
4032 * command. It uses the @flag to properly set up the IOCB field for the
4033 * specific ACC response command to be issued and invokes the
4034 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
4035 * @mbox pointer is passed in, it will be put into the context_un.mbox
4036 * field of the IOCB for the completion callback function to issue the
4037 * mailbox command to the HBA later when callback is invoked.
4039 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4040 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4041 * will be stored into the context1 field of the IOCB for the completion
4042 * callback function to the corresponding response ELS IOCB command.
4045 * 0 - Successfully issued acc response
4046 * 1 - Failed to issue acc response
4049 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
4050 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4053 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4054 struct lpfc_hba *phba = vport->phba;
4057 struct lpfc_iocbq *elsiocb;
4059 struct serv_parm *sp;
4062 ELS_PKT *els_pkt_ptr;
4064 oldcmd = &oldiocb->iocb;
4068 cmdsize = sizeof(uint32_t);
4069 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4070 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
4072 spin_lock_irq(shost->host_lock);
4073 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4074 spin_unlock_irq(shost->host_lock);
4078 icmd = &elsiocb->iocb;
4079 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4080 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4081 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4082 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4083 pcmd += sizeof(uint32_t);
4085 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4086 "Issue ACC: did:x%x flg:x%x",
4087 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4091 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
4092 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4093 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
4097 icmd = &elsiocb->iocb;
4098 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4099 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4100 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4103 elsiocb->context_un.mbox = mbox;
4105 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4106 pcmd += sizeof(uint32_t);
4107 sp = (struct serv_parm *)pcmd;
4109 if (flag == ELS_CMD_FLOGI) {
4110 /* Copy the received service parameters back */
4111 memcpy(sp, &phba->fc_fabparam,
4112 sizeof(struct serv_parm));
4114 /* Clear the F_Port bit */
4117 /* Mark all class service parameters as invalid */
4118 sp->cls1.classValid = 0;
4119 sp->cls2.classValid = 0;
4120 sp->cls3.classValid = 0;
4121 sp->cls4.classValid = 0;
4123 /* Copy our worldwide names */
4124 memcpy(&sp->portName, &vport->fc_sparam.portName,
4125 sizeof(struct lpfc_name));
4126 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
4127 sizeof(struct lpfc_name));
4129 memcpy(pcmd, &vport->fc_sparam,
4130 sizeof(struct serv_parm));
4132 sp->cmn.valid_vendor_ver_level = 0;
4133 memset(sp->un.vendorVersion, 0,
4134 sizeof(sp->un.vendorVersion));
4136 /* If our firmware supports this feature, convey that
4137 * info to the target using the vendor specific field.
4139 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
4140 sp->cmn.valid_vendor_ver_level = 1;
4141 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
4143 cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
4147 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4148 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
4149 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4152 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
4153 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4154 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
4158 icmd = &elsiocb->iocb;
4159 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4160 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4161 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4163 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
4164 sizeof(uint32_t) + sizeof(PRLO));
4165 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
4166 els_pkt_ptr = (ELS_PKT *) pcmd;
4167 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
4169 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4170 "Issue ACC PRLO: did:x%x flg:x%x",
4171 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4176 /* Xmit ELS ACC response tag <ulpIoTag> */
4177 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4178 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4179 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4181 elsiocb->iotag, elsiocb->iocb.ulpContext,
4182 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4183 ndlp->nlp_rpi, vport->fc_flag);
4184 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
4185 spin_lock_irq(shost->host_lock);
4186 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4187 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
4188 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4189 spin_unlock_irq(shost->host_lock);
4190 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
4192 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4195 phba->fc_stat.elsXmitACC++;
4196 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4197 if (rc == IOCB_ERROR) {
4198 lpfc_els_free_iocb(phba, elsiocb);
4205 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4206 * @vport: pointer to a virtual N_Port data structure.
4208 * @oldiocb: pointer to the original lpfc command iocb data structure.
4209 * @ndlp: pointer to a node-list data structure.
4210 * @mbox: pointer to the driver internal queue element for mailbox command.
4212 * This routine prepares and issue an Reject (RJT) response IOCB
4213 * command. If a @mbox pointer is passed in, it will be put into the
4214 * context_un.mbox field of the IOCB for the completion callback function
4215 * to issue to the HBA later.
4217 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4218 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4219 * will be stored into the context1 field of the IOCB for the completion
4220 * callback function to the reject response ELS IOCB command.
4223 * 0 - Successfully issued reject response
4224 * 1 - Failed to issue reject response
4227 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
4228 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4231 struct lpfc_hba *phba = vport->phba;
4234 struct lpfc_iocbq *elsiocb;
4239 cmdsize = 2 * sizeof(uint32_t);
4240 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4241 ndlp->nlp_DID, ELS_CMD_LS_RJT);
4245 icmd = &elsiocb->iocb;
4246 oldcmd = &oldiocb->iocb;
4247 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4248 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4249 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4251 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4252 pcmd += sizeof(uint32_t);
4253 *((uint32_t *) (pcmd)) = rejectError;
4256 elsiocb->context_un.mbox = mbox;
4258 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4259 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4260 "0129 Xmit ELS RJT x%x response tag x%x "
4261 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4263 rejectError, elsiocb->iotag,
4264 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4265 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
4266 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4267 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4268 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4270 phba->fc_stat.elsXmitLSRJT++;
4271 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4272 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4274 if (rc == IOCB_ERROR) {
4275 lpfc_els_free_iocb(phba, elsiocb);
4282 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4283 * @vport: pointer to a virtual N_Port data structure.
4284 * @oldiocb: pointer to the original lpfc command iocb data structure.
4285 * @ndlp: pointer to a node-list data structure.
4287 * This routine prepares and issues an Accept (ACC) response to Address
4288 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4289 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4291 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4292 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4293 * will be stored into the context1 field of the IOCB for the completion
4294 * callback function to the ADISC Accept response ELS IOCB command.
4297 * 0 - Successfully issued acc adisc response
4298 * 1 - Failed to issue adisc acc response
4301 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4302 struct lpfc_nodelist *ndlp)
4304 struct lpfc_hba *phba = vport->phba;
4306 IOCB_t *icmd, *oldcmd;
4307 struct lpfc_iocbq *elsiocb;
4312 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
4313 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4314 ndlp->nlp_DID, ELS_CMD_ACC);
4318 icmd = &elsiocb->iocb;
4319 oldcmd = &oldiocb->iocb;
4320 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4321 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4323 /* Xmit ADISC ACC response tag <ulpIoTag> */
4324 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4325 "0130 Xmit ADISC ACC response iotag x%x xri: "
4326 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4327 elsiocb->iotag, elsiocb->iocb.ulpContext,
4328 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4330 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4332 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4333 pcmd += sizeof(uint32_t);
4335 ap = (ADISC *) (pcmd);
4336 ap->hardAL_PA = phba->fc_pref_ALPA;
4337 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4338 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4339 ap->DID = be32_to_cpu(vport->fc_myDID);
4341 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4342 "Issue ACC ADISC: did:x%x flg:x%x",
4343 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4345 phba->fc_stat.elsXmitACC++;
4346 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4347 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4348 if (rc == IOCB_ERROR) {
4349 lpfc_els_free_iocb(phba, elsiocb);
4356 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4357 * @vport: pointer to a virtual N_Port data structure.
4358 * @oldiocb: pointer to the original lpfc command iocb data structure.
4359 * @ndlp: pointer to a node-list data structure.
4361 * This routine prepares and issues an Accept (ACC) response to Process
4362 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4363 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4365 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4366 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4367 * will be stored into the context1 field of the IOCB for the completion
4368 * callback function to the PRLI Accept response ELS IOCB command.
4371 * 0 - Successfully issued acc prli response
4372 * 1 - Failed to issue acc prli response
4375 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4376 struct lpfc_nodelist *ndlp)
4378 struct lpfc_hba *phba = vport->phba;
4380 struct lpfc_nvme_prli *npr_nvme;
4384 struct lpfc_iocbq *elsiocb;
4387 uint32_t prli_fc4_req, *req_payload;
4388 struct lpfc_dmabuf *req_buf;
4392 /* Need the incoming PRLI payload to determine if the ACC is for an
4393 * FC4 or NVME PRLI type. The PRLI type is at word 1.
4395 req_buf = (struct lpfc_dmabuf *)oldiocb->context2;
4396 req_payload = (((uint32_t *)req_buf->virt) + 1);
4398 /* PRLI type payload is at byte 3 for FCP or NVME. */
4399 prli_fc4_req = be32_to_cpu(*req_payload);
4400 prli_fc4_req = (prli_fc4_req >> 24) & 0xff;
4401 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4402 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n",
4403 prli_fc4_req, *((uint32_t *)req_payload));
4405 if (prli_fc4_req == PRLI_FCP_TYPE) {
4406 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
4407 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
4408 } else if (prli_fc4_req & PRLI_NVME_TYPE) {
4409 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli);
4410 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK));
4415 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4416 ndlp->nlp_DID, elsrspcmd);
4420 icmd = &elsiocb->iocb;
4421 oldcmd = &oldiocb->iocb;
4422 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4423 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4425 /* Xmit PRLI ACC response tag <ulpIoTag> */
4426 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4427 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4428 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4429 elsiocb->iotag, elsiocb->iocb.ulpContext,
4430 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4432 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4433 memset(pcmd, 0, cmdsize);
4435 *((uint32_t *)(pcmd)) = elsrspcmd;
4436 pcmd += sizeof(uint32_t);
4438 /* For PRLI, remainder of payload is PRLI parameter page */
4441 if (prli_fc4_req == PRLI_FCP_TYPE) {
4443 * If the remote port is a target and our firmware version
4444 * is 3.20 or later, set the following bits for FC-TAPE
4447 npr = (PRLI *) pcmd;
4448 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4449 (vpd->rev.feaLevelHigh >= 0x02)) {
4450 npr->ConfmComplAllowed = 1;
4452 npr->TaskRetryIdReq = 1;
4454 npr->acceptRspCode = PRLI_REQ_EXECUTED;
4455 npr->estabImagePair = 1;
4456 npr->readXferRdyDis = 1;
4457 npr->ConfmComplAllowed = 1;
4458 npr->prliType = PRLI_FCP_TYPE;
4459 npr->initiatorFunc = 1;
4460 } else if (prli_fc4_req & PRLI_NVME_TYPE) {
4461 /* Respond with an NVME PRLI Type */
4462 npr_nvme = (struct lpfc_nvme_prli *) pcmd;
4463 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
4464 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
4465 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED);
4466 if (phba->nvmet_support) {
4467 bf_set(prli_tgt, npr_nvme, 1);
4468 bf_set(prli_disc, npr_nvme, 1);
4469 if (phba->cfg_nvme_enable_fb) {
4470 bf_set(prli_fba, npr_nvme, 1);
4472 /* TBD. Target mode needs to post buffers
4473 * that support the configured first burst
4476 bf_set(prli_fb_sz, npr_nvme,
4477 phba->cfg_nvmet_fb_size);
4480 bf_set(prli_init, npr_nvme, 1);
4483 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
4484 "6015 NVME issue PRLI ACC word1 x%08x "
4485 "word4 x%08x word5 x%08x flag x%x, "
4486 "fcp_info x%x nlp_type x%x\n",
4487 npr_nvme->word1, npr_nvme->word4,
4488 npr_nvme->word5, ndlp->nlp_flag,
4489 ndlp->nlp_fcp_info, ndlp->nlp_type);
4490 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
4491 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
4492 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5);
4494 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4495 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n",
4496 prli_fc4_req, ndlp->nlp_fc4_type,
4499 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4500 "Issue ACC PRLI: did:x%x flg:x%x",
4501 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4503 phba->fc_stat.elsXmitACC++;
4504 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4506 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4507 if (rc == IOCB_ERROR) {
4508 lpfc_els_free_iocb(phba, elsiocb);
4515 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4516 * @vport: pointer to a virtual N_Port data structure.
4517 * @format: rnid command format.
4518 * @oldiocb: pointer to the original lpfc command iocb data structure.
4519 * @ndlp: pointer to a node-list data structure.
4521 * This routine issues a Request Node Identification Data (RNID) Accept
4522 * (ACC) response. It constructs the RNID ACC response command according to
4523 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4524 * issue the response. Note that this command does not need to hold the ndlp
4525 * reference count for the callback. So, the ndlp reference count taken by
4526 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4527 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4528 * there is no ndlp reference available.
4530 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4531 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4532 * will be stored into the context1 field of the IOCB for the completion
4533 * callback function. However, for the RNID Accept Response ELS command,
4534 * this is undone later by this routine after the IOCB is allocated.
4537 * 0 - Successfully issued acc rnid response
4538 * 1 - Failed to issue acc rnid response
4541 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
4542 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4544 struct lpfc_hba *phba = vport->phba;
4546 IOCB_t *icmd, *oldcmd;
4547 struct lpfc_iocbq *elsiocb;
4552 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
4553 + (2 * sizeof(struct lpfc_name));
4555 cmdsize += sizeof(RNID_TOP_DISC);
4557 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4558 ndlp->nlp_DID, ELS_CMD_ACC);
4562 icmd = &elsiocb->iocb;
4563 oldcmd = &oldiocb->iocb;
4564 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4565 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4567 /* Xmit RNID ACC response tag <ulpIoTag> */
4568 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4569 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4570 elsiocb->iotag, elsiocb->iocb.ulpContext);
4571 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4572 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4573 pcmd += sizeof(uint32_t);
4575 memset(pcmd, 0, sizeof(RNID));
4576 rn = (RNID *) (pcmd);
4577 rn->Format = format;
4578 rn->CommonLen = (2 * sizeof(struct lpfc_name));
4579 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4580 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4583 rn->SpecificLen = 0;
4585 case RNID_TOPOLOGY_DISC:
4586 rn->SpecificLen = sizeof(RNID_TOP_DISC);
4587 memcpy(&rn->un.topologyDisc.portName,
4588 &vport->fc_portname, sizeof(struct lpfc_name));
4589 rn->un.topologyDisc.unitType = RNID_HBA;
4590 rn->un.topologyDisc.physPort = 0;
4591 rn->un.topologyDisc.attachedNodes = 0;
4595 rn->SpecificLen = 0;
4599 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4600 "Issue ACC RNID: did:x%x flg:x%x",
4601 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4603 phba->fc_stat.elsXmitACC++;
4604 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4606 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4607 if (rc == IOCB_ERROR) {
4608 lpfc_els_free_iocb(phba, elsiocb);
4615 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4616 * @vport: pointer to a virtual N_Port data structure.
4617 * @iocb: pointer to the lpfc command iocb data structure.
4618 * @ndlp: pointer to a node-list data structure.
4623 lpfc_els_clear_rrq(struct lpfc_vport *vport,
4624 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
4626 struct lpfc_hba *phba = vport->phba;
4631 struct lpfc_node_rrq *prrq;
4634 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
4635 pcmd += sizeof(uint32_t);
4636 rrq = (struct RRQ *)pcmd;
4637 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
4638 rxid = bf_get(rrq_rxid, rrq);
4640 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4641 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4643 be32_to_cpu(bf_get(rrq_did, rrq)),
4644 bf_get(rrq_oxid, rrq),
4646 iocb->iotag, iocb->iocb.ulpContext);
4648 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4649 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4650 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
4651 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
4652 xri = bf_get(rrq_oxid, rrq);
4655 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
4657 lpfc_clr_rrq_active(phba, xri, prrq);
4662 * lpfc_els_rsp_echo_acc - Issue echo acc response
4663 * @vport: pointer to a virtual N_Port data structure.
4664 * @data: pointer to echo data to return in the accept.
4665 * @oldiocb: pointer to the original lpfc command iocb data structure.
4666 * @ndlp: pointer to a node-list data structure.
4669 * 0 - Successfully issued acc echo response
4670 * 1 - Failed to issue acc echo response
4673 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
4674 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4676 struct lpfc_hba *phba = vport->phba;
4677 struct lpfc_iocbq *elsiocb;
4682 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
4684 /* The accumulated length can exceed the BPL_SIZE. For
4685 * now, use this as the limit
4687 if (cmdsize > LPFC_BPL_SIZE)
4688 cmdsize = LPFC_BPL_SIZE;
4689 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4690 ndlp->nlp_DID, ELS_CMD_ACC);
4694 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
4695 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
4697 /* Xmit ECHO ACC response tag <ulpIoTag> */
4698 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4699 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4700 elsiocb->iotag, elsiocb->iocb.ulpContext);
4701 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4702 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4703 pcmd += sizeof(uint32_t);
4704 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
4706 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4707 "Issue ACC ECHO: did:x%x flg:x%x",
4708 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4710 phba->fc_stat.elsXmitACC++;
4711 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4713 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4714 if (rc == IOCB_ERROR) {
4715 lpfc_els_free_iocb(phba, elsiocb);
4722 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4723 * @vport: pointer to a host virtual N_Port data structure.
4725 * This routine issues Address Discover (ADISC) ELS commands to those
4726 * N_Ports which are in node port recovery state and ADISC has not been issued
4727 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4728 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4729 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4730 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4731 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4732 * IOCBs quit for later pick up. On the other hand, after walking through
4733 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4734 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4735 * no more ADISC need to be sent.
4738 * The number of N_Ports with adisc issued.
4741 lpfc_els_disc_adisc(struct lpfc_vport *vport)
4743 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4744 struct lpfc_nodelist *ndlp, *next_ndlp;
4747 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4748 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4749 if (!NLP_CHK_NODE_ACT(ndlp))
4751 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4752 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4753 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
4754 spin_lock_irq(shost->host_lock);
4755 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4756 spin_unlock_irq(shost->host_lock);
4757 ndlp->nlp_prev_state = ndlp->nlp_state;
4758 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4759 lpfc_issue_els_adisc(vport, ndlp, 0);
4761 vport->num_disc_nodes++;
4762 if (vport->num_disc_nodes >=
4763 vport->cfg_discovery_threads) {
4764 spin_lock_irq(shost->host_lock);
4765 vport->fc_flag |= FC_NLP_MORE;
4766 spin_unlock_irq(shost->host_lock);
4771 if (sentadisc == 0) {
4772 spin_lock_irq(shost->host_lock);
4773 vport->fc_flag &= ~FC_NLP_MORE;
4774 spin_unlock_irq(shost->host_lock);
4780 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4781 * @vport: pointer to a host virtual N_Port data structure.
4783 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4784 * which are in node port recovery state, with a @vport. Each time an ELS
4785 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4786 * the per @vport number of discover count (num_disc_nodes) shall be
4787 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4788 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4789 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4790 * later pick up. On the other hand, after walking through all the ndlps with
4791 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4792 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4793 * PLOGI need to be sent.
4796 * The number of N_Ports with plogi issued.
4799 lpfc_els_disc_plogi(struct lpfc_vport *vport)
4801 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4802 struct lpfc_nodelist *ndlp, *next_ndlp;
4805 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4806 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4807 if (!NLP_CHK_NODE_ACT(ndlp))
4809 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4810 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4811 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
4812 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
4813 ndlp->nlp_prev_state = ndlp->nlp_state;
4814 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4815 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4817 vport->num_disc_nodes++;
4818 if (vport->num_disc_nodes >=
4819 vport->cfg_discovery_threads) {
4820 spin_lock_irq(shost->host_lock);
4821 vport->fc_flag |= FC_NLP_MORE;
4822 spin_unlock_irq(shost->host_lock);
4828 lpfc_set_disctmo(vport);
4831 spin_lock_irq(shost->host_lock);
4832 vport->fc_flag &= ~FC_NLP_MORE;
4833 spin_unlock_irq(shost->host_lock);
4839 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
4843 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
4844 desc->payload.els_req = word0;
4845 desc->length = cpu_to_be32(sizeof(desc->payload));
4847 return sizeof(struct fc_rdp_link_service_desc);
4851 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
4852 uint8_t *page_a0, uint8_t *page_a2)
4854 uint16_t wavelength;
4855 uint16_t temperature;
4861 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
4862 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
4864 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
4866 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
4867 &page_a0[SSF_TRANSCEIVER_CODE_B4];
4868 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
4869 &page_a0[SSF_TRANSCEIVER_CODE_B5];
4871 if ((trasn_code_byte4->fc_sw_laser) ||
4872 (trasn_code_byte5->fc_sw_laser_sl) ||
4873 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
4874 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
4875 } else if (trasn_code_byte4->fc_lw_laser) {
4876 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
4877 page_a0[SSF_WAVELENGTH_B0];
4878 if (wavelength == SFP_WAVELENGTH_LC1310)
4879 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
4880 if (wavelength == SFP_WAVELENGTH_LL1550)
4881 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
4883 /* check if its SFP+ */
4884 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
4885 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
4886 << SFP_FLAG_CT_SHIFT;
4888 /* check if its OPTICAL */
4889 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
4890 SFP_FLAG_IS_OPTICAL_PORT : 0)
4891 << SFP_FLAG_IS_OPTICAL_SHIFT;
4893 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
4894 page_a2[SFF_TEMPERATURE_B0]);
4895 vcc = (page_a2[SFF_VCC_B1] << 8 |
4896 page_a2[SFF_VCC_B0]);
4897 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
4898 page_a2[SFF_TXPOWER_B0]);
4899 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
4900 page_a2[SFF_TX_BIAS_CURRENT_B0]);
4901 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
4902 page_a2[SFF_RXPOWER_B0]);
4903 desc->sfp_info.temperature = cpu_to_be16(temperature);
4904 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
4905 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
4906 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
4907 desc->sfp_info.vcc = cpu_to_be16(vcc);
4909 desc->sfp_info.flags = cpu_to_be16(flag);
4910 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
4912 return sizeof(struct fc_rdp_sfp_desc);
4916 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
4921 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
4923 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
4925 desc->info.port_type = cpu_to_be32(type);
4927 desc->info.link_status.link_failure_cnt =
4928 cpu_to_be32(stat->linkFailureCnt);
4929 desc->info.link_status.loss_of_synch_cnt =
4930 cpu_to_be32(stat->lossSyncCnt);
4931 desc->info.link_status.loss_of_signal_cnt =
4932 cpu_to_be32(stat->lossSignalCnt);
4933 desc->info.link_status.primitive_seq_proto_err =
4934 cpu_to_be32(stat->primSeqErrCnt);
4935 desc->info.link_status.invalid_trans_word =
4936 cpu_to_be32(stat->invalidXmitWord);
4937 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
4939 desc->length = cpu_to_be32(sizeof(desc->info));
4941 return sizeof(struct fc_rdp_link_error_status_desc);
4945 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
4946 struct lpfc_vport *vport)
4950 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
4952 bbCredit = vport->fc_sparam.cmn.bbCreditLsb |
4953 (vport->fc_sparam.cmn.bbCreditMsb << 8);
4954 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit);
4955 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
4956 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb |
4957 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8);
4958 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit);
4960 desc->bbc_info.attached_port_bbc = 0;
4963 desc->bbc_info.rtt = 0;
4964 desc->length = cpu_to_be32(sizeof(desc->bbc_info));
4966 return sizeof(struct fc_rdp_bbc_desc);
4970 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
4971 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
4975 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
4977 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM];
4978 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM];
4979 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING];
4980 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING];
4982 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4983 flags |= RDP_OET_HIGH_ALARM;
4984 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4985 flags |= RDP_OET_LOW_ALARM;
4986 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
4987 flags |= RDP_OET_HIGH_WARNING;
4988 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
4989 flags |= RDP_OET_LOW_WARNING;
4991 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
4992 desc->oed_info.function_flags = cpu_to_be32(flags);
4993 desc->length = cpu_to_be32(sizeof(desc->oed_info));
4994 return sizeof(struct fc_rdp_oed_sfp_desc);
4998 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
4999 struct fc_rdp_oed_sfp_desc *desc,
5004 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5006 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM];
5007 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM];
5008 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING];
5009 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING];
5011 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
5012 flags |= RDP_OET_HIGH_ALARM;
5013 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE)
5014 flags |= RDP_OET_LOW_ALARM;
5015 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
5016 flags |= RDP_OET_HIGH_WARNING;
5017 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE)
5018 flags |= RDP_OET_LOW_WARNING;
5020 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
5021 desc->oed_info.function_flags = cpu_to_be32(flags);
5022 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5023 return sizeof(struct fc_rdp_oed_sfp_desc);
5027 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
5028 struct fc_rdp_oed_sfp_desc *desc,
5033 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5035 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM];
5036 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM];
5037 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING];
5038 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING];
5040 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS)
5041 flags |= RDP_OET_HIGH_ALARM;
5042 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS)
5043 flags |= RDP_OET_LOW_ALARM;
5044 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS)
5045 flags |= RDP_OET_HIGH_WARNING;
5046 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS)
5047 flags |= RDP_OET_LOW_WARNING;
5049 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
5050 desc->oed_info.function_flags = cpu_to_be32(flags);
5051 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5052 return sizeof(struct fc_rdp_oed_sfp_desc);
5056 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
5057 struct fc_rdp_oed_sfp_desc *desc,
5062 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5064 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM];
5065 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM];
5066 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING];
5067 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING];
5069 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER)
5070 flags |= RDP_OET_HIGH_ALARM;
5071 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER)
5072 flags |= RDP_OET_LOW_ALARM;
5073 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER)
5074 flags |= RDP_OET_HIGH_WARNING;
5075 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER)
5076 flags |= RDP_OET_LOW_WARNING;
5078 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
5079 desc->oed_info.function_flags = cpu_to_be32(flags);
5080 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5081 return sizeof(struct fc_rdp_oed_sfp_desc);
5086 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
5087 struct fc_rdp_oed_sfp_desc *desc,
5092 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5094 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM];
5095 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM];
5096 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING];
5097 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING];
5099 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER)
5100 flags |= RDP_OET_HIGH_ALARM;
5101 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER)
5102 flags |= RDP_OET_LOW_ALARM;
5103 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER)
5104 flags |= RDP_OET_HIGH_WARNING;
5105 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER)
5106 flags |= RDP_OET_LOW_WARNING;
5108 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
5109 desc->oed_info.function_flags = cpu_to_be32(flags);
5110 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5111 return sizeof(struct fc_rdp_oed_sfp_desc);
5115 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
5116 uint8_t *page_a0, struct lpfc_vport *vport)
5118 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
5119 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
5120 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
5121 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
5122 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4);
5123 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
5124 desc->length = cpu_to_be32(sizeof(desc->opd_info));
5125 return sizeof(struct fc_rdp_opd_sfp_desc);
5129 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
5131 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
5133 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
5135 desc->info.CorrectedBlocks =
5136 cpu_to_be32(stat->fecCorrBlkCount);
5137 desc->info.UncorrectableBlocks =
5138 cpu_to_be32(stat->fecUncorrBlkCount);
5140 desc->length = cpu_to_be32(sizeof(desc->info));
5142 return sizeof(struct fc_fec_rdp_desc);
5146 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
5148 uint16_t rdp_cap = 0;
5151 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
5153 switch (phba->fc_linkspeed) {
5154 case LPFC_LINK_SPEED_1GHZ:
5155 rdp_speed = RDP_PS_1GB;
5157 case LPFC_LINK_SPEED_2GHZ:
5158 rdp_speed = RDP_PS_2GB;
5160 case LPFC_LINK_SPEED_4GHZ:
5161 rdp_speed = RDP_PS_4GB;
5163 case LPFC_LINK_SPEED_8GHZ:
5164 rdp_speed = RDP_PS_8GB;
5166 case LPFC_LINK_SPEED_10GHZ:
5167 rdp_speed = RDP_PS_10GB;
5169 case LPFC_LINK_SPEED_16GHZ:
5170 rdp_speed = RDP_PS_16GB;
5172 case LPFC_LINK_SPEED_32GHZ:
5173 rdp_speed = RDP_PS_32GB;
5176 rdp_speed = RDP_PS_UNKNOWN;
5180 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
5182 if (phba->lmt & LMT_32Gb)
5183 rdp_cap |= RDP_PS_32GB;
5184 if (phba->lmt & LMT_16Gb)
5185 rdp_cap |= RDP_PS_16GB;
5186 if (phba->lmt & LMT_10Gb)
5187 rdp_cap |= RDP_PS_10GB;
5188 if (phba->lmt & LMT_8Gb)
5189 rdp_cap |= RDP_PS_8GB;
5190 if (phba->lmt & LMT_4Gb)
5191 rdp_cap |= RDP_PS_4GB;
5192 if (phba->lmt & LMT_2Gb)
5193 rdp_cap |= RDP_PS_2GB;
5194 if (phba->lmt & LMT_1Gb)
5195 rdp_cap |= RDP_PS_1GB;
5198 rdp_cap = RDP_CAP_UNKNOWN;
5199 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
5200 rdp_cap |= RDP_CAP_USER_CONFIGURED;
5202 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
5203 desc->length = cpu_to_be32(sizeof(desc->info));
5204 return sizeof(struct fc_rdp_port_speed_desc);
5208 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
5209 struct lpfc_vport *vport)
5212 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5214 memcpy(desc->port_names.wwnn, &vport->fc_nodename,
5215 sizeof(desc->port_names.wwnn));
5217 memcpy(desc->port_names.wwpn, &vport->fc_portname,
5218 sizeof(desc->port_names.wwpn));
5220 desc->length = cpu_to_be32(sizeof(desc->port_names));
5221 return sizeof(struct fc_rdp_port_name_desc);
5225 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
5226 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5229 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5230 if (vport->fc_flag & FC_FABRIC) {
5231 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
5232 sizeof(desc->port_names.wwnn));
5234 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
5235 sizeof(desc->port_names.wwpn));
5236 } else { /* Point to Point */
5237 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
5238 sizeof(desc->port_names.wwnn));
5240 memcpy(desc->port_names.wwnn, &ndlp->nlp_portname,
5241 sizeof(desc->port_names.wwpn));
5244 desc->length = cpu_to_be32(sizeof(desc->port_names));
5245 return sizeof(struct fc_rdp_port_name_desc);
5249 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
5252 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
5253 struct lpfc_vport *vport = ndlp->vport;
5254 struct lpfc_iocbq *elsiocb;
5255 struct ulp_bde64 *bpl;
5258 struct ls_rjt *stat;
5259 struct fc_rdp_res_frame *rdp_res;
5260 uint32_t cmdsize, len;
5264 if (status != SUCCESS)
5267 /* This will change once we know the true size of the RDP payload */
5268 cmdsize = sizeof(struct fc_rdp_res_frame);
5270 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
5271 lpfc_max_els_tries, rdp_context->ndlp,
5272 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
5275 goto free_rdp_context;
5277 icmd = &elsiocb->iocb;
5278 icmd->ulpContext = rdp_context->rx_id;
5279 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5281 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5282 "2171 Xmit RDP response tag x%x xri x%x, "
5283 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
5284 elsiocb->iotag, elsiocb->iocb.ulpContext,
5285 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5287 rdp_res = (struct fc_rdp_res_frame *)
5288 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5289 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5290 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
5291 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5293 /* Update Alarm and Warning */
5294 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS);
5295 phba->sfp_alarm |= *flag_ptr;
5296 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS);
5297 phba->sfp_warning |= *flag_ptr;
5299 /* For RDP payload */
5301 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
5302 (len + pcmd), ELS_CMD_RDP);
5304 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
5305 rdp_context->page_a0, rdp_context->page_a2);
5306 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
5308 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
5309 (len + pcmd), &rdp_context->link_stat);
5310 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
5311 (len + pcmd), vport);
5312 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
5313 (len + pcmd), vport, ndlp);
5314 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
5315 &rdp_context->link_stat);
5316 /* Check if nport is logged, BZ190632 */
5317 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
5318 goto lpfc_skip_descriptor;
5320 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
5321 &rdp_context->link_stat, vport);
5322 len += lpfc_rdp_res_oed_temp_desc(phba,
5323 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5324 rdp_context->page_a2);
5325 len += lpfc_rdp_res_oed_voltage_desc(phba,
5326 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5327 rdp_context->page_a2);
5328 len += lpfc_rdp_res_oed_txbias_desc(phba,
5329 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5330 rdp_context->page_a2);
5331 len += lpfc_rdp_res_oed_txpower_desc(phba,
5332 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5333 rdp_context->page_a2);
5334 len += lpfc_rdp_res_oed_rxpower_desc(phba,
5335 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
5336 rdp_context->page_a2);
5337 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
5338 rdp_context->page_a0, vport);
5340 lpfc_skip_descriptor:
5341 rdp_res->length = cpu_to_be32(len - 8);
5342 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5344 /* Now that we know the true size of the payload, update the BPL */
5345 bpl = (struct ulp_bde64 *)
5346 (((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
5347 bpl->tus.f.bdeSize = len;
5348 bpl->tus.f.bdeFlags = 0;
5349 bpl->tus.w = le32_to_cpu(bpl->tus.w);
5351 phba->fc_stat.elsXmitACC++;
5352 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5353 if (rc == IOCB_ERROR)
5354 lpfc_els_free_iocb(phba, elsiocb);
5360 cmdsize = 2 * sizeof(uint32_t);
5361 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
5362 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
5365 goto free_rdp_context;
5367 icmd = &elsiocb->iocb;
5368 icmd->ulpContext = rdp_context->rx_id;
5369 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5370 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5372 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
5373 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5374 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5376 phba->fc_stat.elsXmitLSRJT++;
5377 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5378 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5380 if (rc == IOCB_ERROR)
5381 lpfc_els_free_iocb(phba, elsiocb);
5387 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
5389 LPFC_MBOXQ_t *mbox = NULL;
5392 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5394 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
5395 "7105 failed to allocate mailbox memory");
5399 if (lpfc_sli4_dump_page_a0(phba, mbox))
5400 goto prep_mbox_fail;
5401 mbox->vport = rdp_context->ndlp->vport;
5402 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
5403 mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
5404 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5405 if (rc == MBX_NOT_FINISHED)
5406 goto issue_mbox_fail;
5412 mempool_free(mbox, phba->mbox_mem_pool);
5417 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
5418 * @vport: pointer to a host virtual N_Port data structure.
5419 * @cmdiocb: pointer to lpfc command iocb data structure.
5420 * @ndlp: pointer to a node-list data structure.
5422 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
5423 * IOCB. First, the payload of the unsolicited RDP is checked.
5424 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
5425 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
5426 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
5427 * gather all data and send RDP response.
5430 * 0 - Sent the acc response
5431 * 1 - Sent the reject response.
5434 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5435 struct lpfc_nodelist *ndlp)
5437 struct lpfc_hba *phba = vport->phba;
5438 struct lpfc_dmabuf *pcmd;
5439 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
5440 struct fc_rdp_req_frame *rdp_req;
5441 struct lpfc_rdp_context *rdp_context;
5445 if (phba->sli_rev < LPFC_SLI_REV4 ||
5446 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5447 LPFC_SLI_INTF_IF_TYPE_2) {
5448 rjt_err = LSRJT_UNABLE_TPC;
5449 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5453 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
5454 rjt_err = LSRJT_UNABLE_TPC;
5455 rjt_expl = LSEXP_REQ_UNSUPPORTED;
5459 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5460 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
5463 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5464 "2422 ELS RDP Request "
5465 "dec len %d tag x%x port_id %d len %d\n",
5466 be32_to_cpu(rdp_req->rdp_des_length),
5467 be32_to_cpu(rdp_req->nport_id_desc.tag),
5468 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
5469 be32_to_cpu(rdp_req->nport_id_desc.length));
5471 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) &&
5472 !phba->cfg_enable_SmartSAN) {
5473 rjt_err = LSRJT_UNABLE_TPC;
5474 rjt_expl = LSEXP_PORT_LOGIN_REQ;
5477 if (sizeof(struct fc_rdp_nport_desc) !=
5478 be32_to_cpu(rdp_req->rdp_des_length))
5480 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
5482 if (RDP_NPORT_ID_SIZE !=
5483 be32_to_cpu(rdp_req->nport_id_desc.length))
5485 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
5487 rjt_err = LSRJT_UNABLE_TPC;
5491 cmd = &cmdiocb->iocb;
5492 rdp_context->ndlp = lpfc_nlp_get(ndlp);
5493 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
5494 rdp_context->rx_id = cmd->ulpContext;
5495 rdp_context->cmpl = lpfc_els_rdp_cmpl;
5496 if (lpfc_get_rdp_info(phba, rdp_context)) {
5497 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
5498 "2423 Unable to send mailbox");
5500 rjt_err = LSRJT_UNABLE_TPC;
5508 rjt_err = LSRJT_LOGICAL_ERR;
5511 memset(&stat, 0, sizeof(stat));
5512 stat.un.b.lsRjtRsnCode = rjt_err;
5513 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
5514 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5520 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5525 struct lpfc_iocbq *elsiocb;
5526 struct lpfc_nodelist *ndlp;
5527 struct ls_rjt *stat;
5528 union lpfc_sli4_cfg_shdr *shdr;
5529 struct lpfc_lcb_context *lcb_context;
5530 struct fc_lcb_res_frame *lcb_res;
5531 uint32_t cmdsize, shdr_status, shdr_add_status;
5535 lcb_context = (struct lpfc_lcb_context *)pmb->context1;
5536 ndlp = lcb_context->ndlp;
5537 pmb->context1 = NULL;
5538 pmb->context2 = NULL;
5540 shdr = (union lpfc_sli4_cfg_shdr *)
5541 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
5542 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5543 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5545 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
5546 "0194 SET_BEACON_CONFIG mailbox "
5547 "completed with status x%x add_status x%x,"
5548 " mbx status x%x\n",
5549 shdr_status, shdr_add_status, mb->mbxStatus);
5551 if (mb->mbxStatus && !(shdr_status &&
5552 shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)) {
5553 mempool_free(pmb, phba->mbox_mem_pool);
5557 mempool_free(pmb, phba->mbox_mem_pool);
5558 cmdsize = sizeof(struct fc_lcb_res_frame);
5559 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5560 lpfc_max_els_tries, ndlp,
5561 ndlp->nlp_DID, ELS_CMD_ACC);
5563 /* Decrement the ndlp reference count from previous mbox command */
5567 goto free_lcb_context;
5569 lcb_res = (struct fc_lcb_res_frame *)
5570 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5572 icmd = &elsiocb->iocb;
5573 icmd->ulpContext = lcb_context->rx_id;
5574 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5576 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5577 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
5578 lcb_res->lcb_sub_command = lcb_context->sub_command;
5579 lcb_res->lcb_type = lcb_context->type;
5580 lcb_res->lcb_frequency = lcb_context->frequency;
5581 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5582 phba->fc_stat.elsXmitACC++;
5583 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5584 if (rc == IOCB_ERROR)
5585 lpfc_els_free_iocb(phba, elsiocb);
5591 cmdsize = sizeof(struct fc_lcb_res_frame);
5592 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5593 lpfc_max_els_tries, ndlp,
5594 ndlp->nlp_DID, ELS_CMD_LS_RJT);
5597 goto free_lcb_context;
5599 icmd = &elsiocb->iocb;
5600 icmd->ulpContext = lcb_context->rx_id;
5601 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5602 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5604 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
5605 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5606 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5608 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5609 phba->fc_stat.elsXmitLSRJT++;
5610 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5611 if (rc == IOCB_ERROR)
5612 lpfc_els_free_iocb(phba, elsiocb);
5618 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
5619 struct lpfc_lcb_context *lcb_context,
5620 uint32_t beacon_state)
5622 struct lpfc_hba *phba = vport->phba;
5623 LPFC_MBOXQ_t *mbox = NULL;
5627 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5631 len = sizeof(struct lpfc_mbx_set_beacon_config) -
5632 sizeof(struct lpfc_sli4_cfg_mhdr);
5633 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5634 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
5635 LPFC_SLI4_MBX_EMBED);
5636 mbox->context1 = (void *)lcb_context;
5637 mbox->vport = phba->pport;
5638 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
5639 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
5640 phba->sli4_hba.physical_port);
5641 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
5643 bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1);
5644 bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0);
5645 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5646 if (rc == MBX_NOT_FINISHED) {
5647 mempool_free(mbox, phba->mbox_mem_pool);
5656 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5657 * @vport: pointer to a host virtual N_Port data structure.
5658 * @cmdiocb: pointer to lpfc command iocb data structure.
5659 * @ndlp: pointer to a node-list data structure.
5661 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5662 * First, the payload of the unsolicited LCB is checked.
5663 * Then based on Subcommand beacon will either turn on or off.
5666 * 0 - Sent the acc response
5667 * 1 - Sent the reject response.
5670 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5671 struct lpfc_nodelist *ndlp)
5673 struct lpfc_hba *phba = vport->phba;
5674 struct lpfc_dmabuf *pcmd;
5676 struct fc_lcb_request_frame *beacon;
5677 struct lpfc_lcb_context *lcb_context;
5678 uint8_t state, rjt_err;
5681 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
5682 lp = (uint8_t *)pcmd->virt;
5683 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
5685 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5686 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5687 "type x%x frequency %x duration x%x\n",
5688 lp[0], lp[1], lp[2],
5689 beacon->lcb_command,
5690 beacon->lcb_sub_command,
5692 beacon->lcb_frequency,
5693 be16_to_cpu(beacon->lcb_duration));
5695 if (phba->sli_rev < LPFC_SLI_REV4 ||
5696 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5697 LPFC_SLI_INTF_IF_TYPE_2)) {
5698 rjt_err = LSRJT_CMD_UNSUPPORTED;
5702 if (phba->hba_flag & HBA_FCOE_MODE) {
5703 rjt_err = LSRJT_CMD_UNSUPPORTED;
5706 if (beacon->lcb_sub_command != LPFC_LCB_ON &&
5707 beacon->lcb_sub_command != LPFC_LCB_OFF) {
5708 rjt_err = LSRJT_CMD_UNSUPPORTED;
5711 if (beacon->lcb_sub_command == LPFC_LCB_ON &&
5712 be16_to_cpu(beacon->lcb_duration) != 0) {
5713 rjt_err = LSRJT_CMD_UNSUPPORTED;
5717 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
5719 rjt_err = LSRJT_UNABLE_TPC;
5723 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
5724 lcb_context->sub_command = beacon->lcb_sub_command;
5725 lcb_context->type = beacon->lcb_type;
5726 lcb_context->frequency = beacon->lcb_frequency;
5727 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
5728 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
5729 lcb_context->ndlp = lpfc_nlp_get(ndlp);
5730 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
5731 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
5732 LOG_ELS, "0193 failed to send mail box");
5735 rjt_err = LSRJT_UNABLE_TPC;
5740 memset(&stat, 0, sizeof(stat));
5741 stat.un.b.lsRjtRsnCode = rjt_err;
5742 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5748 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5749 * @vport: pointer to a host virtual N_Port data structure.
5751 * This routine cleans up any Registration State Change Notification
5752 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5753 * @vport together with the host_lock is used to prevent multiple thread
5754 * trying to access the RSCN array on a same @vport at the same time.
5757 lpfc_els_flush_rscn(struct lpfc_vport *vport)
5759 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5760 struct lpfc_hba *phba = vport->phba;
5763 spin_lock_irq(shost->host_lock);
5764 if (vport->fc_rscn_flush) {
5765 /* Another thread is walking fc_rscn_id_list on this vport */
5766 spin_unlock_irq(shost->host_lock);
5769 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5770 vport->fc_rscn_flush = 1;
5771 spin_unlock_irq(shost->host_lock);
5773 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5774 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
5775 vport->fc_rscn_id_list[i] = NULL;
5777 spin_lock_irq(shost->host_lock);
5778 vport->fc_rscn_id_cnt = 0;
5779 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
5780 spin_unlock_irq(shost->host_lock);
5781 lpfc_can_disctmo(vport);
5782 /* Indicate we are done walking this fc_rscn_id_list */
5783 vport->fc_rscn_flush = 0;
5787 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5788 * @vport: pointer to a host virtual N_Port data structure.
5789 * @did: remote destination port identifier.
5791 * This routine checks whether there is any pending Registration State
5792 * Configuration Notification (RSCN) to a @did on @vport.
5795 * None zero - The @did matched with a pending rscn
5796 * 0 - not able to match @did with a pending rscn
5799 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
5804 uint32_t payload_len, i;
5805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5807 ns_did.un.word = did;
5809 /* Never match fabric nodes for RSCNs */
5810 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
5813 /* If we are doing a FULL RSCN rediscovery, match everything */
5814 if (vport->fc_flag & FC_RSCN_DISCOVERY)
5817 spin_lock_irq(shost->host_lock);
5818 if (vport->fc_rscn_flush) {
5819 /* Another thread is walking fc_rscn_id_list on this vport */
5820 spin_unlock_irq(shost->host_lock);
5823 /* Indicate we are walking fc_rscn_id_list on this vport */
5824 vport->fc_rscn_flush = 1;
5825 spin_unlock_irq(shost->host_lock);
5826 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5827 lp = vport->fc_rscn_id_list[i]->virt;
5828 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5829 payload_len -= sizeof(uint32_t); /* take off word 0 */
5830 while (payload_len) {
5831 rscn_did.un.word = be32_to_cpu(*lp++);
5832 payload_len -= sizeof(uint32_t);
5833 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
5834 case RSCN_ADDRESS_FORMAT_PORT:
5835 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5836 && (ns_did.un.b.area == rscn_did.un.b.area)
5837 && (ns_did.un.b.id == rscn_did.un.b.id))
5838 goto return_did_out;
5840 case RSCN_ADDRESS_FORMAT_AREA:
5841 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5842 && (ns_did.un.b.area == rscn_did.un.b.area))
5843 goto return_did_out;
5845 case RSCN_ADDRESS_FORMAT_DOMAIN:
5846 if (ns_did.un.b.domain == rscn_did.un.b.domain)
5847 goto return_did_out;
5849 case RSCN_ADDRESS_FORMAT_FABRIC:
5850 goto return_did_out;
5854 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5855 vport->fc_rscn_flush = 0;
5858 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5859 vport->fc_rscn_flush = 0;
5864 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5865 * @vport: pointer to a host virtual N_Port data structure.
5867 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5868 * state machine for a @vport's nodes that are with pending RSCN (Registration
5869 * State Change Notification).
5872 * 0 - Successful (currently alway return 0)
5875 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
5877 struct lpfc_nodelist *ndlp = NULL;
5879 /* Move all affected nodes by pending RSCNs to NPR state. */
5880 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5881 if (!NLP_CHK_NODE_ACT(ndlp) ||
5882 (ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
5883 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
5886 /* NVME Target mode does not do RSCN Recovery. */
5887 if (vport->phba->nvmet_support)
5890 lpfc_disc_state_machine(vport, ndlp, NULL,
5891 NLP_EVT_DEVICE_RECOVERY);
5892 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5898 * lpfc_send_rscn_event - Send an RSCN event to management application
5899 * @vport: pointer to a host virtual N_Port data structure.
5900 * @cmdiocb: pointer to lpfc command iocb data structure.
5902 * lpfc_send_rscn_event sends an RSCN netlink event to management
5906 lpfc_send_rscn_event(struct lpfc_vport *vport,
5907 struct lpfc_iocbq *cmdiocb)
5909 struct lpfc_dmabuf *pcmd;
5910 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5911 uint32_t *payload_ptr;
5912 uint32_t payload_len;
5913 struct lpfc_rscn_event_header *rscn_event_data;
5915 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5916 payload_ptr = (uint32_t *) pcmd->virt;
5917 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
5919 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
5920 payload_len, GFP_KERNEL);
5921 if (!rscn_event_data) {
5922 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5923 "0147 Failed to allocate memory for RSCN event\n");
5926 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
5927 rscn_event_data->payload_length = payload_len;
5928 memcpy(rscn_event_data->rscn_payload, payload_ptr,
5931 fc_host_post_vendor_event(shost,
5932 fc_get_event_number(),
5933 sizeof(struct lpfc_rscn_event_header) + payload_len,
5934 (char *)rscn_event_data,
5937 kfree(rscn_event_data);
5941 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5942 * @vport: pointer to a host virtual N_Port data structure.
5943 * @cmdiocb: pointer to lpfc command iocb data structure.
5944 * @ndlp: pointer to a node-list data structure.
5946 * This routine processes an unsolicited RSCN (Registration State Change
5947 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5948 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5949 * discover state machine is about to begin discovery, it just accepts the
5950 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5951 * contains N_Port IDs for other vports on this HBA, it just accepts the
5952 * RSCN and ignore processing it. If the state machine is in the recovery
5953 * state, the fc_rscn_id_list of this @vport is walked and the
5954 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5955 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5956 * routine is invoked to handle the RSCN event.
5959 * 0 - Just sent the acc response
5960 * 1 - Sent the acc response and waited for name server completion
5963 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5964 struct lpfc_nodelist *ndlp)
5966 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5967 struct lpfc_hba *phba = vport->phba;
5968 struct lpfc_dmabuf *pcmd;
5969 uint32_t *lp, *datap;
5970 uint32_t payload_len, length, nportid, *cmd;
5972 int rscn_id = 0, hba_id = 0;
5975 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5976 lp = (uint32_t *) pcmd->virt;
5978 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5979 payload_len -= sizeof(uint32_t); /* take off word 0 */
5981 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5982 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5983 vport->fc_flag, payload_len, *lp,
5984 vport->fc_rscn_id_cnt);
5986 /* Send an RSCN event to the management application */
5987 lpfc_send_rscn_event(vport, cmdiocb);
5989 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
5990 fc_host_post_event(shost, fc_get_event_number(),
5991 FCH_EVT_RSCN, lp[i]);
5993 /* If we are about to begin discovery, just ACC the RSCN.
5994 * Discovery processing will satisfy it.
5996 if (vport->port_state <= LPFC_NS_QRY) {
5997 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5998 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5999 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6001 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6005 /* If this RSCN just contains NPortIDs for other vports on this HBA,
6006 * just ACC and ignore it.
6008 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
6009 !(vport->cfg_peer_port_login)) {
6014 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
6015 i -= sizeof(uint32_t);
6017 if (lpfc_find_vport_by_did(phba, nportid))
6020 if (rscn_id == hba_id) {
6021 /* ALL NPortIDs in RSCN are on HBA */
6022 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6024 "Data: x%x x%x x%x x%x\n",
6025 vport->fc_flag, payload_len,
6026 *lp, vport->fc_rscn_id_cnt);
6027 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6028 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
6029 ndlp->nlp_DID, vport->port_state,
6032 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
6038 spin_lock_irq(shost->host_lock);
6039 if (vport->fc_rscn_flush) {
6040 /* Another thread is walking fc_rscn_id_list on this vport */
6041 vport->fc_flag |= FC_RSCN_DISCOVERY;
6042 spin_unlock_irq(shost->host_lock);
6044 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6047 /* Indicate we are walking fc_rscn_id_list on this vport */
6048 vport->fc_rscn_flush = 1;
6049 spin_unlock_irq(shost->host_lock);
6050 /* Get the array count after successfully have the token */
6051 rscn_cnt = vport->fc_rscn_id_cnt;
6052 /* If we are already processing an RSCN, save the received
6053 * RSCN payload buffer, cmdiocb->context2 to process later.
6055 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
6056 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6057 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
6058 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6060 spin_lock_irq(shost->host_lock);
6061 vport->fc_flag |= FC_RSCN_DEFERRED;
6062 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
6063 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
6064 vport->fc_flag |= FC_RSCN_MODE;
6065 spin_unlock_irq(shost->host_lock);
6067 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
6068 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
6071 (payload_len + length <= LPFC_BPL_SIZE)) {
6072 *cmd &= ELS_CMD_MASK;
6073 *cmd |= cpu_to_be32(payload_len + length);
6074 memcpy(((uint8_t *)cmd) + length, lp,
6077 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
6078 vport->fc_rscn_id_cnt++;
6079 /* If we zero, cmdiocb->context2, the calling
6080 * routine will not try to free it.
6082 cmdiocb->context2 = NULL;
6085 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6086 "0235 Deferred RSCN "
6087 "Data: x%x x%x x%x\n",
6088 vport->fc_rscn_id_cnt, vport->fc_flag,
6091 vport->fc_flag |= FC_RSCN_DISCOVERY;
6092 spin_unlock_irq(shost->host_lock);
6093 /* ReDiscovery RSCN */
6094 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6095 "0234 ReDiscovery RSCN "
6096 "Data: x%x x%x x%x\n",
6097 vport->fc_rscn_id_cnt, vport->fc_flag,
6100 /* Indicate we are done walking fc_rscn_id_list on this vport */
6101 vport->fc_rscn_flush = 0;
6103 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6104 /* send RECOVERY event for ALL nodes that match RSCN payload */
6105 lpfc_rscn_recovery_check(vport);
6106 spin_lock_irq(shost->host_lock);
6107 vport->fc_flag &= ~FC_RSCN_DEFERRED;
6108 spin_unlock_irq(shost->host_lock);
6111 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6112 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
6113 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6115 spin_lock_irq(shost->host_lock);
6116 vport->fc_flag |= FC_RSCN_MODE;
6117 spin_unlock_irq(shost->host_lock);
6118 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
6119 /* Indicate we are done walking fc_rscn_id_list on this vport */
6120 vport->fc_rscn_flush = 0;
6122 * If we zero, cmdiocb->context2, the calling routine will
6123 * not try to free it.
6125 cmdiocb->context2 = NULL;
6126 lpfc_set_disctmo(vport);
6128 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6129 /* send RECOVERY event for ALL nodes that match RSCN payload */
6130 lpfc_rscn_recovery_check(vport);
6131 return lpfc_els_handle_rscn(vport);
6135 * lpfc_els_handle_rscn - Handle rscn for a vport
6136 * @vport: pointer to a host virtual N_Port data structure.
6138 * This routine handles the Registration State Configuration Notification
6139 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
6140 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
6141 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
6142 * NameServer shall be issued. If CT command to the NameServer fails to be
6143 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
6144 * RSCN activities with the @vport.
6147 * 0 - Cleaned up rscn on the @vport
6148 * 1 - Wait for plogi to name server before proceed
6151 lpfc_els_handle_rscn(struct lpfc_vport *vport)
6153 struct lpfc_nodelist *ndlp;
6155 /* Ignore RSCN if the port is being torn down. */
6156 if (vport->load_flag & FC_UNLOADING) {
6157 lpfc_els_flush_rscn(vport);
6161 /* Start timer for RSCN processing */
6162 lpfc_set_disctmo(vport);
6164 /* RSCN processed */
6165 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6166 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
6167 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
6170 /* To process RSCN, first compare RSCN data with NameServer */
6171 vport->fc_ns_retry = 0;
6172 vport->num_disc_nodes = 0;
6174 ndlp = lpfc_findnode_did(vport, NameServer_DID);
6175 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
6176 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
6177 /* Good ndlp, issue CT Request to NameServer. Need to
6178 * know how many gidfts were issued. If none, then just
6179 * flush the RSCN. Otherwise, the outstanding requests
6182 vport->gidft_inp = 0;
6183 if (lpfc_issue_gidft(vport) > 0)
6186 /* Nameserver login in question. Revalidate. */
6188 ndlp = lpfc_enable_node(vport, ndlp,
6189 NLP_STE_PLOGI_ISSUE);
6191 lpfc_els_flush_rscn(vport);
6194 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
6196 ndlp = lpfc_nlp_init(vport, NameServer_DID);
6198 lpfc_els_flush_rscn(vport);
6201 ndlp->nlp_prev_state = ndlp->nlp_state;
6202 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
6204 ndlp->nlp_type |= NLP_FABRIC;
6205 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
6206 /* Wait for NameServer login cmpl before we can
6212 lpfc_els_flush_rscn(vport);
6217 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
6218 * @vport: pointer to a host virtual N_Port data structure.
6219 * @cmdiocb: pointer to lpfc command iocb data structure.
6220 * @ndlp: pointer to a node-list data structure.
6222 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
6223 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
6224 * point topology. As an unsolicited FLOGI should not be received in a loop
6225 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
6226 * lpfc_check_sparm() routine is invoked to check the parameters in the
6227 * unsolicited FLOGI. If parameters validation failed, the routine
6228 * lpfc_els_rsp_reject() shall be called with reject reason code set to
6229 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
6230 * FLOGI shall be compared with the Port WWN of the @vport to determine who
6231 * will initiate PLOGI. The higher lexicographical value party shall has
6232 * higher priority (as the winning port) and will initiate PLOGI and
6233 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
6234 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
6235 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
6238 * 0 - Successfully processed the unsolicited flogi
6239 * 1 - Failed to process the unsolicited flogi
6242 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6243 struct lpfc_nodelist *ndlp)
6245 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6246 struct lpfc_hba *phba = vport->phba;
6247 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6248 uint32_t *lp = (uint32_t *) pcmd->virt;
6249 IOCB_t *icmd = &cmdiocb->iocb;
6250 struct serv_parm *sp;
6254 uint32_t fc_flag = 0;
6255 uint32_t port_state = 0;
6258 sp = (struct serv_parm *) lp;
6260 /* FLOGI received */
6262 lpfc_set_disctmo(vport);
6264 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6265 /* We should never receive a FLOGI in loop mode, ignore it */
6266 did = icmd->un.elsreq64.remoteID;
6268 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
6270 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
6271 "0113 An FLOGI ELS command x%x was "
6272 "received from DID x%x in Loop Mode\n",
6277 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
6280 * If our portname is greater than the remote portname,
6281 * then we initiate Nport login.
6284 rc = memcmp(&vport->fc_portname, &sp->portName,
6285 sizeof(struct lpfc_name));
6288 if (phba->sli_rev < LPFC_SLI_REV4) {
6289 mbox = mempool_alloc(phba->mbox_mem_pool,
6293 lpfc_linkdown(phba);
6294 lpfc_init_link(phba, mbox,
6296 phba->cfg_link_speed);
6297 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
6298 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6299 mbox->vport = vport;
6300 rc = lpfc_sli_issue_mbox(phba, mbox,
6302 lpfc_set_loopback_flag(phba);
6303 if (rc == MBX_NOT_FINISHED)
6304 mempool_free(mbox, phba->mbox_mem_pool);
6308 /* abort the flogi coming back to ourselves
6309 * due to external loopback on the port.
6311 lpfc_els_abort_flogi(phba);
6314 } else if (rc > 0) { /* greater than */
6315 spin_lock_irq(shost->host_lock);
6316 vport->fc_flag |= FC_PT2PT_PLOGI;
6317 spin_unlock_irq(shost->host_lock);
6319 /* If we have the high WWPN we can assign our own
6320 * myDID; otherwise, we have to WAIT for a PLOGI
6321 * from the remote NPort to find out what it
6324 vport->fc_myDID = PT2PT_LocalID;
6326 vport->fc_myDID = PT2PT_RemoteID;
6330 * The vport state should go to LPFC_FLOGI only
6331 * AFTER we issue a FLOGI, not receive one.
6333 spin_lock_irq(shost->host_lock);
6334 fc_flag = vport->fc_flag;
6335 port_state = vport->port_state;
6336 vport->fc_flag |= FC_PT2PT;
6337 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
6338 spin_unlock_irq(shost->host_lock);
6339 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6340 "3311 Rcv Flogi PS x%x new PS x%x "
6341 "fc_flag x%x new fc_flag x%x\n",
6342 port_state, vport->port_state,
6343 fc_flag, vport->fc_flag);
6346 * We temporarily set fc_myDID to make it look like we are
6347 * a Fabric. This is done just so we end up with the right
6348 * did / sid on the FLOGI ACC rsp.
6350 did = vport->fc_myDID;
6351 vport->fc_myDID = Fabric_DID;
6353 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
6356 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
6358 /* Now lets put fc_myDID back to what its supposed to be */
6359 vport->fc_myDID = did;
6365 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
6366 * @vport: pointer to a host virtual N_Port data structure.
6367 * @cmdiocb: pointer to lpfc command iocb data structure.
6368 * @ndlp: pointer to a node-list data structure.
6370 * This routine processes Request Node Identification Data (RNID) IOCB
6371 * received as an ELS unsolicited event. Only when the RNID specified format
6372 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
6373 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
6374 * Accept (ACC) the RNID ELS command. All the other RNID formats are
6375 * rejected by invoking the lpfc_els_rsp_reject() routine.
6378 * 0 - Successfully processed rnid iocb (currently always return 0)
6381 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6382 struct lpfc_nodelist *ndlp)
6384 struct lpfc_dmabuf *pcmd;
6390 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6391 lp = (uint32_t *) pcmd->virt;
6398 switch (rn->Format) {
6400 case RNID_TOPOLOGY_DISC:
6402 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
6405 /* Reject this request because format not supported */
6406 stat.un.b.lsRjtRsvd0 = 0;
6407 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6408 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6409 stat.un.b.vendorUnique = 0;
6410 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6417 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
6418 * @vport: pointer to a host virtual N_Port data structure.
6419 * @cmdiocb: pointer to lpfc command iocb data structure.
6420 * @ndlp: pointer to a node-list data structure.
6423 * 0 - Successfully processed echo iocb (currently always return 0)
6426 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6427 struct lpfc_nodelist *ndlp)
6431 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
6433 /* skip over first word of echo command to find echo data */
6434 pcmd += sizeof(uint32_t);
6436 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
6441 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
6442 * @vport: pointer to a host virtual N_Port data structure.
6443 * @cmdiocb: pointer to lpfc command iocb data structure.
6444 * @ndlp: pointer to a node-list data structure.
6446 * This routine processes a Link Incident Report Registration(LIRR) IOCB
6447 * received as an ELS unsolicited event. Currently, this function just invokes
6448 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
6451 * 0 - Successfully processed lirr iocb (currently always return 0)
6454 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6455 struct lpfc_nodelist *ndlp)
6459 /* For now, unconditionally reject this command */
6460 stat.un.b.lsRjtRsvd0 = 0;
6461 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6462 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6463 stat.un.b.vendorUnique = 0;
6464 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6469 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
6470 * @vport: pointer to a host virtual N_Port data structure.
6471 * @cmdiocb: pointer to lpfc command iocb data structure.
6472 * @ndlp: pointer to a node-list data structure.
6474 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
6475 * received as an ELS unsolicited event. A request to RRQ shall only
6476 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
6477 * Nx_Port N_Port_ID of the target Exchange is the same as the
6478 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
6479 * not accepted, an LS_RJT with reason code "Unable to perform
6480 * command request" and reason code explanation "Invalid Originator
6481 * S_ID" shall be returned. For now, we just unconditionally accept
6482 * RRQ from the target.
6485 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6486 struct lpfc_nodelist *ndlp)
6488 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6489 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6490 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
6494 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6495 * @phba: pointer to lpfc hba data structure.
6496 * @pmb: pointer to the driver internal queue element for mailbox command.
6498 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6499 * mailbox command. This callback function is to actually send the Accept
6500 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6501 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6502 * mailbox command, constructs the RPS response with the link statistics
6503 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6504 * response to the RPS.
6506 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6507 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6508 * will be stored into the context1 field of the IOCB for the completion
6509 * callback function to the RPS Accept Response ELS IOCB command.
6513 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6517 struct RLS_RSP *rls_rsp;
6519 struct lpfc_iocbq *elsiocb;
6520 struct lpfc_nodelist *ndlp;
6527 ndlp = (struct lpfc_nodelist *) pmb->context2;
6528 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6529 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6530 pmb->context1 = NULL;
6531 pmb->context2 = NULL;
6533 if (mb->mbxStatus) {
6534 mempool_free(pmb, phba->mbox_mem_pool);
6538 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
6539 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6540 lpfc_max_els_tries, ndlp,
6541 ndlp->nlp_DID, ELS_CMD_ACC);
6543 /* Decrement the ndlp reference count from previous mbox command */
6547 mempool_free(pmb, phba->mbox_mem_pool);
6551 icmd = &elsiocb->iocb;
6552 icmd->ulpContext = rxid;
6553 icmd->unsli3.rcvsli3.ox_id = oxid;
6555 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6556 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6557 pcmd += sizeof(uint32_t); /* Skip past command */
6558 rls_rsp = (struct RLS_RSP *)pcmd;
6560 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6561 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6562 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6563 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6564 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6565 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6566 mempool_free(pmb, phba->mbox_mem_pool);
6567 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6568 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6569 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6570 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6571 elsiocb->iotag, elsiocb->iocb.ulpContext,
6572 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6574 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6575 phba->fc_stat.elsXmitACC++;
6576 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6577 lpfc_els_free_iocb(phba, elsiocb);
6581 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6582 * @phba: pointer to lpfc hba data structure.
6583 * @pmb: pointer to the driver internal queue element for mailbox command.
6585 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6586 * mailbox command. This callback function is to actually send the Accept
6587 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6588 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6589 * mailbox command, constructs the RPS response with the link statistics
6590 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6591 * response to the RPS.
6593 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6594 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6595 * will be stored into the context1 field of the IOCB for the completion
6596 * callback function to the RPS Accept Response ELS IOCB command.
6600 lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6606 struct lpfc_iocbq *elsiocb;
6607 struct lpfc_nodelist *ndlp;
6615 ndlp = (struct lpfc_nodelist *) pmb->context2;
6616 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6617 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6618 pmb->context1 = NULL;
6619 pmb->context2 = NULL;
6621 if (mb->mbxStatus) {
6622 mempool_free(pmb, phba->mbox_mem_pool);
6626 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
6627 mempool_free(pmb, phba->mbox_mem_pool);
6628 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6629 lpfc_max_els_tries, ndlp,
6630 ndlp->nlp_DID, ELS_CMD_ACC);
6632 /* Decrement the ndlp reference count from previous mbox command */
6638 icmd = &elsiocb->iocb;
6639 icmd->ulpContext = rxid;
6640 icmd->unsli3.rcvsli3.ox_id = oxid;
6642 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6643 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6644 pcmd += sizeof(uint32_t); /* Skip past command */
6645 rps_rsp = (RPS_RSP *)pcmd;
6647 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
6651 if (phba->pport->fc_flag & FC_FABRIC)
6655 rps_rsp->portStatus = cpu_to_be16(status);
6656 rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6657 rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6658 rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6659 rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6660 rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6661 rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6662 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6663 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6664 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6665 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6666 elsiocb->iotag, elsiocb->iocb.ulpContext,
6667 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6669 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6670 phba->fc_stat.elsXmitACC++;
6671 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6672 lpfc_els_free_iocb(phba, elsiocb);
6677 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6678 * @vport: pointer to a host virtual N_Port data structure.
6679 * @cmdiocb: pointer to lpfc command iocb data structure.
6680 * @ndlp: pointer to a node-list data structure.
6682 * This routine processes Read Port Status (RPL) IOCB received as an
6683 * ELS unsolicited event. It first checks the remote port state. If the
6684 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6685 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6686 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6687 * for reading the HBA link statistics. It is for the callback function,
6688 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6689 * to actually sending out RPL Accept (ACC) response.
6692 * 0 - Successfully processed rls iocb (currently always return 0)
6695 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6696 struct lpfc_nodelist *ndlp)
6698 struct lpfc_hba *phba = vport->phba;
6702 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6703 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6704 /* reject the unsolicited RPS request and done with it */
6707 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6709 lpfc_read_lnk_stat(phba, mbox);
6710 mbox->context1 = (void *)((unsigned long)
6711 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6712 cmdiocb->iocb.ulpContext)); /* rx_id */
6713 mbox->context2 = lpfc_nlp_get(ndlp);
6714 mbox->vport = vport;
6715 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
6716 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6717 != MBX_NOT_FINISHED)
6718 /* Mbox completion will send ELS Response */
6720 /* Decrement reference count used for the failed mbox
6724 mempool_free(mbox, phba->mbox_mem_pool);
6727 /* issue rejection response */
6728 stat.un.b.lsRjtRsvd0 = 0;
6729 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6730 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6731 stat.un.b.vendorUnique = 0;
6732 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6737 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6738 * @vport: pointer to a host virtual N_Port data structure.
6739 * @cmdiocb: pointer to lpfc command iocb data structure.
6740 * @ndlp: pointer to a node-list data structure.
6742 * This routine processes Read Timout Value (RTV) IOCB received as an
6743 * ELS unsolicited event. It first checks the remote port state. If the
6744 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6745 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6746 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6747 * Value (RTV) unsolicited IOCB event.
6749 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6750 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6751 * will be stored into the context1 field of the IOCB for the completion
6752 * callback function to the RPS Accept Response ELS IOCB command.
6755 * 0 - Successfully processed rtv iocb (currently always return 0)
6758 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6759 struct lpfc_nodelist *ndlp)
6761 struct lpfc_hba *phba = vport->phba;
6763 struct RTV_RSP *rtv_rsp;
6765 struct lpfc_iocbq *elsiocb;
6769 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6770 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6771 /* reject the unsolicited RPS request and done with it */
6774 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
6775 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6776 lpfc_max_els_tries, ndlp,
6777 ndlp->nlp_DID, ELS_CMD_ACC);
6782 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6783 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6784 pcmd += sizeof(uint32_t); /* Skip past command */
6786 /* use the command's xri in the response */
6787 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
6788 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
6790 rtv_rsp = (struct RTV_RSP *)pcmd;
6792 /* populate RTV payload */
6793 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
6794 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
6795 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
6796 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
6797 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
6799 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6800 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6801 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6802 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6803 "Data: x%x x%x x%x\n",
6804 elsiocb->iotag, elsiocb->iocb.ulpContext,
6805 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6807 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
6808 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6809 phba->fc_stat.elsXmitACC++;
6810 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6811 lpfc_els_free_iocb(phba, elsiocb);
6815 /* issue rejection response */
6816 stat.un.b.lsRjtRsvd0 = 0;
6817 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6818 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6819 stat.un.b.vendorUnique = 0;
6820 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6824 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6825 * @vport: pointer to a host virtual N_Port data structure.
6826 * @cmdiocb: pointer to lpfc command iocb data structure.
6827 * @ndlp: pointer to a node-list data structure.
6829 * This routine processes Read Port Status (RPS) IOCB received as an
6830 * ELS unsolicited event. It first checks the remote port state. If the
6831 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6832 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6833 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6834 * for reading the HBA link statistics. It is for the callback function,
6835 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6836 * to actually sending out RPS Accept (ACC) response.
6839 * 0 - Successfully processed rps iocb (currently always return 0)
6842 lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6843 struct lpfc_nodelist *ndlp)
6845 struct lpfc_hba *phba = vport->phba;
6849 struct lpfc_dmabuf *pcmd;
6853 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6854 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6855 /* reject the unsolicited RPS request and done with it */
6858 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6859 lp = (uint32_t *) pcmd->virt;
6860 flag = (be32_to_cpu(*lp++) & 0xf);
6864 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
6865 ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
6866 sizeof(struct lpfc_name)) == 0))) {
6868 printk("Fix me....\n");
6870 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6872 lpfc_read_lnk_stat(phba, mbox);
6873 mbox->context1 = (void *)((unsigned long)
6874 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6875 cmdiocb->iocb.ulpContext)); /* rx_id */
6876 mbox->context2 = lpfc_nlp_get(ndlp);
6877 mbox->vport = vport;
6878 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
6879 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6880 != MBX_NOT_FINISHED)
6881 /* Mbox completion will send ELS Response */
6883 /* Decrement reference count used for the failed mbox
6887 mempool_free(mbox, phba->mbox_mem_pool);
6892 /* issue rejection response */
6893 stat.un.b.lsRjtRsvd0 = 0;
6894 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6895 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6896 stat.un.b.vendorUnique = 0;
6897 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6901 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6902 * @vport: pointer to a host virtual N_Port data structure.
6903 * @ndlp: pointer to a node-list data structure.
6904 * @did: DID of the target.
6905 * @rrq: Pointer to the rrq struct.
6907 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6908 * Successful the the completion handler will clear the RRQ.
6911 * 0 - Successfully sent rrq els iocb.
6912 * 1 - Failed to send rrq els iocb.
6915 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
6916 uint32_t did, struct lpfc_node_rrq *rrq)
6918 struct lpfc_hba *phba = vport->phba;
6919 struct RRQ *els_rrq;
6920 struct lpfc_iocbq *elsiocb;
6926 if (ndlp != rrq->ndlp)
6928 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
6931 /* If ndlp is not NULL, we will bump the reference count on it */
6932 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
6933 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
6938 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6940 /* For RRQ request, remainder of payload is Exchange IDs */
6941 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
6942 pcmd += sizeof(uint32_t);
6943 els_rrq = (struct RRQ *) pcmd;
6945 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
6946 bf_set(rrq_rxid, els_rrq, rrq->rxid);
6947 bf_set(rrq_did, els_rrq, vport->fc_myDID);
6948 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
6949 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
6952 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
6953 "Issue RRQ: did:x%x",
6954 did, rrq->xritag, rrq->rxid);
6955 elsiocb->context_un.rrq = rrq;
6956 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
6957 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6959 if (ret == IOCB_ERROR) {
6960 lpfc_els_free_iocb(phba, elsiocb);
6967 * lpfc_send_rrq - Sends ELS RRQ if needed.
6968 * @phba: pointer to lpfc hba data structure.
6969 * @rrq: pointer to the active rrq.
6971 * This routine will call the lpfc_issue_els_rrq if the rrq is
6972 * still active for the xri. If this function returns a failure then
6973 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6975 * Returns 0 Success.
6979 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
6981 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
6983 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
6984 return lpfc_issue_els_rrq(rrq->vport, ndlp,
6991 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6992 * @vport: pointer to a host virtual N_Port data structure.
6993 * @cmdsize: size of the ELS command.
6994 * @oldiocb: pointer to the original lpfc command iocb data structure.
6995 * @ndlp: pointer to a node-list data structure.
6997 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6998 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
7000 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7001 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7002 * will be stored into the context1 field of the IOCB for the completion
7003 * callback function to the RPL Accept Response ELS command.
7006 * 0 - Successfully issued ACC RPL ELS command
7007 * 1 - Failed to issue ACC RPL ELS command
7010 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
7011 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
7013 struct lpfc_hba *phba = vport->phba;
7014 IOCB_t *icmd, *oldcmd;
7016 struct lpfc_iocbq *elsiocb;
7019 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
7020 ndlp->nlp_DID, ELS_CMD_ACC);
7025 icmd = &elsiocb->iocb;
7026 oldcmd = &oldiocb->iocb;
7027 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
7028 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
7030 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7031 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
7032 pcmd += sizeof(uint16_t);
7033 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
7034 pcmd += sizeof(uint16_t);
7036 /* Setup the RPL ACC payload */
7037 rpl_rsp.listLen = be32_to_cpu(1);
7039 rpl_rsp.port_num_blk.portNum = 0;
7040 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
7041 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
7042 sizeof(struct lpfc_name));
7043 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
7044 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
7045 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7046 "0120 Xmit ELS RPL ACC response tag x%x "
7047 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
7049 elsiocb->iotag, elsiocb->iocb.ulpContext,
7050 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
7052 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
7053 phba->fc_stat.elsXmitACC++;
7054 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
7056 lpfc_els_free_iocb(phba, elsiocb);
7063 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
7064 * @vport: pointer to a host virtual N_Port data structure.
7065 * @cmdiocb: pointer to lpfc command iocb data structure.
7066 * @ndlp: pointer to a node-list data structure.
7068 * This routine processes Read Port List (RPL) IOCB received as an ELS
7069 * unsolicited event. It first checks the remote port state. If the remote
7070 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
7071 * invokes the lpfc_els_rsp_reject() routine to send reject response.
7072 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
7073 * to accept the RPL.
7076 * 0 - Successfully processed rpl iocb (currently always return 0)
7079 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7080 struct lpfc_nodelist *ndlp)
7082 struct lpfc_dmabuf *pcmd;
7089 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
7090 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
7091 /* issue rejection response */
7092 stat.un.b.lsRjtRsvd0 = 0;
7093 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7094 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7095 stat.un.b.vendorUnique = 0;
7096 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
7098 /* rejected the unsolicited RPL request and done with it */
7102 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7103 lp = (uint32_t *) pcmd->virt;
7104 rpl = (RPL *) (lp + 1);
7105 maxsize = be32_to_cpu(rpl->maxsize);
7107 /* We support only one port */
7108 if ((rpl->index == 0) &&
7110 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
7111 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
7113 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
7115 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
7121 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
7122 * @vport: pointer to a virtual N_Port data structure.
7123 * @cmdiocb: pointer to lpfc command iocb data structure.
7124 * @ndlp: pointer to a node-list data structure.
7126 * This routine processes Fibre Channel Address Resolution Protocol
7127 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
7128 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
7129 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
7130 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
7131 * remote PortName is compared against the FC PortName stored in the @vport
7132 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
7133 * compared against the FC NodeName stored in the @vport data structure.
7134 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
7135 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
7136 * invoked to send out FARP Response to the remote node. Before sending the
7137 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
7138 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
7139 * routine is invoked to log into the remote port first.
7142 * 0 - Either the FARP Match Mode not supported or successfully processed
7145 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7146 struct lpfc_nodelist *ndlp)
7148 struct lpfc_dmabuf *pcmd;
7152 uint32_t cmd, cnt, did;
7154 icmd = &cmdiocb->iocb;
7155 did = icmd->un.elsreq64.remoteID;
7156 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7157 lp = (uint32_t *) pcmd->virt;
7161 /* FARP-REQ received from DID <did> */
7162 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7163 "0601 FARP-REQ received from DID x%x\n", did);
7164 /* We will only support match on WWPN or WWNN */
7165 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
7170 /* If this FARP command is searching for my portname */
7171 if (fp->Mflags & FARP_MATCH_PORT) {
7172 if (memcmp(&fp->RportName, &vport->fc_portname,
7173 sizeof(struct lpfc_name)) == 0)
7177 /* If this FARP command is searching for my nodename */
7178 if (fp->Mflags & FARP_MATCH_NODE) {
7179 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
7180 sizeof(struct lpfc_name)) == 0)
7185 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
7186 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
7187 /* Log back into the node before sending the FARP. */
7188 if (fp->Rflags & FARP_REQUEST_PLOGI) {
7189 ndlp->nlp_prev_state = ndlp->nlp_state;
7190 lpfc_nlp_set_state(vport, ndlp,
7191 NLP_STE_PLOGI_ISSUE);
7192 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
7195 /* Send a FARP response to that node */
7196 if (fp->Rflags & FARP_REQUEST_FARPR)
7197 lpfc_issue_els_farpr(vport, did, 0);
7204 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
7205 * @vport: pointer to a host virtual N_Port data structure.
7206 * @cmdiocb: pointer to lpfc command iocb data structure.
7207 * @ndlp: pointer to a node-list data structure.
7209 * This routine processes Fibre Channel Address Resolution Protocol
7210 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
7211 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
7212 * the FARP response request.
7215 * 0 - Successfully processed FARPR IOCB (currently always return 0)
7218 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7219 struct lpfc_nodelist *ndlp)
7221 struct lpfc_dmabuf *pcmd;
7226 icmd = &cmdiocb->iocb;
7227 did = icmd->un.elsreq64.remoteID;
7228 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7229 lp = (uint32_t *) pcmd->virt;
7232 /* FARP-RSP received from DID <did> */
7233 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7234 "0600 FARP-RSP received from DID x%x\n", did);
7235 /* ACCEPT the Farp resp request */
7236 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
7242 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
7243 * @vport: pointer to a host virtual N_Port data structure.
7244 * @cmdiocb: pointer to lpfc command iocb data structure.
7245 * @fan_ndlp: pointer to a node-list data structure.
7247 * This routine processes a Fabric Address Notification (FAN) IOCB
7248 * command received as an ELS unsolicited event. The FAN ELS command will
7249 * only be processed on a physical port (i.e., the @vport represents the
7250 * physical port). The fabric NodeName and PortName from the FAN IOCB are
7251 * compared against those in the phba data structure. If any of those is
7252 * different, the lpfc_initial_flogi() routine is invoked to initialize
7253 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
7254 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
7255 * is invoked to register login to the fabric.
7258 * 0 - Successfully processed fan iocb (currently always return 0).
7261 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7262 struct lpfc_nodelist *fan_ndlp)
7264 struct lpfc_hba *phba = vport->phba;
7268 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
7269 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
7271 /* FAN received; Fan does not have a reply sequence */
7272 if ((vport == phba->pport) &&
7273 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
7274 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
7275 sizeof(struct lpfc_name))) ||
7276 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
7277 sizeof(struct lpfc_name)))) {
7278 /* This port has switched fabrics. FLOGI is required */
7279 lpfc_issue_init_vfi(vport);
7281 /* FAN verified - skip FLOGI */
7282 vport->fc_myDID = vport->fc_prevDID;
7283 if (phba->sli_rev < LPFC_SLI_REV4)
7284 lpfc_issue_fabric_reglogin(vport);
7286 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7287 "3138 Need register VFI: (x%x/%x)\n",
7288 vport->fc_prevDID, vport->fc_myDID);
7289 lpfc_issue_reg_vfi(vport);
7297 * lpfc_els_timeout - Handler funciton to the els timer
7298 * @ptr: holder for the timer function associated data.
7300 * This routine is invoked by the ELS timer after timeout. It posts the ELS
7301 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
7302 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
7303 * up the worker thread. It is for the worker thread to invoke the routine
7304 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
7307 lpfc_els_timeout(unsigned long ptr)
7309 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
7310 struct lpfc_hba *phba = vport->phba;
7311 uint32_t tmo_posted;
7312 unsigned long iflag;
7314 spin_lock_irqsave(&vport->work_port_lock, iflag);
7315 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
7316 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
7317 vport->work_port_events |= WORKER_ELS_TMO;
7318 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
7320 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
7321 lpfc_worker_wake_up(phba);
7327 * lpfc_els_timeout_handler - Process an els timeout event
7328 * @vport: pointer to a virtual N_Port data structure.
7330 * This routine is the actual handler function that processes an ELS timeout
7331 * event. It walks the ELS ring to get and abort all the IOCBs (except the
7332 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
7333 * invoking the lpfc_sli_issue_abort_iotag() routine.
7336 lpfc_els_timeout_handler(struct lpfc_vport *vport)
7338 struct lpfc_hba *phba = vport->phba;
7339 struct lpfc_sli_ring *pring;
7340 struct lpfc_iocbq *tmp_iocb, *piocb;
7342 struct lpfc_dmabuf *pcmd;
7343 uint32_t els_command = 0;
7345 uint32_t remote_ID = 0xffffffff;
7346 LIST_HEAD(abort_list);
7349 timeout = (uint32_t)(phba->fc_ratov << 1);
7351 pring = lpfc_phba_elsring(phba);
7353 if ((phba->pport->load_flag & FC_UNLOADING))
7355 spin_lock_irq(&phba->hbalock);
7356 if (phba->sli_rev == LPFC_SLI_REV4)
7357 spin_lock(&pring->ring_lock);
7359 if ((phba->pport->load_flag & FC_UNLOADING)) {
7360 if (phba->sli_rev == LPFC_SLI_REV4)
7361 spin_unlock(&pring->ring_lock);
7362 spin_unlock_irq(&phba->hbalock);
7366 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7369 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
7370 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
7371 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
7374 if (piocb->vport != vport)
7377 pcmd = (struct lpfc_dmabuf *) piocb->context2;
7379 els_command = *(uint32_t *) (pcmd->virt);
7381 if (els_command == ELS_CMD_FARP ||
7382 els_command == ELS_CMD_FARPR ||
7383 els_command == ELS_CMD_FDISC)
7386 if (piocb->drvrTimeout > 0) {
7387 if (piocb->drvrTimeout >= timeout)
7388 piocb->drvrTimeout -= timeout;
7390 piocb->drvrTimeout = 0;
7394 remote_ID = 0xffffffff;
7395 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
7396 remote_ID = cmd->un.elsreq64.remoteID;
7398 struct lpfc_nodelist *ndlp;
7399 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
7400 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
7401 remote_ID = ndlp->nlp_DID;
7403 list_add_tail(&piocb->dlist, &abort_list);
7405 if (phba->sli_rev == LPFC_SLI_REV4)
7406 spin_unlock(&pring->ring_lock);
7407 spin_unlock_irq(&phba->hbalock);
7409 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7411 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7412 "0127 ELS timeout Data: x%x x%x x%x "
7413 "x%x\n", els_command,
7414 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
7415 spin_lock_irq(&phba->hbalock);
7416 list_del_init(&piocb->dlist);
7417 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7418 spin_unlock_irq(&phba->hbalock);
7421 if (!list_empty(&pring->txcmplq))
7422 if (!(phba->pport->load_flag & FC_UNLOADING))
7423 mod_timer(&vport->els_tmofunc,
7424 jiffies + msecs_to_jiffies(1000 * timeout));
7428 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
7429 * @vport: pointer to a host virtual N_Port data structure.
7431 * This routine is used to clean up all the outstanding ELS commands on a
7432 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
7433 * routine. After that, it walks the ELS transmit queue to remove all the
7434 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
7435 * the IOCBs with a non-NULL completion callback function, the callback
7436 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7437 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
7438 * callback function, the IOCB will simply be released. Finally, it walks
7439 * the ELS transmit completion queue to issue an abort IOCB to any transmit
7440 * completion queue IOCB that is associated with the @vport and is not
7441 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
7442 * part of the discovery state machine) out to HBA by invoking the
7443 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
7444 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
7445 * the IOCBs are aborted when this function returns.
7448 lpfc_els_flush_cmd(struct lpfc_vport *vport)
7450 LIST_HEAD(abort_list);
7451 struct lpfc_hba *phba = vport->phba;
7452 struct lpfc_sli_ring *pring;
7453 struct lpfc_iocbq *tmp_iocb, *piocb;
7456 lpfc_fabric_abort_vport(vport);
7458 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
7459 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
7460 * ultimately grabs the ring_lock, the driver must splice the list into
7461 * a working list and release the locks before calling the abort.
7463 spin_lock_irq(&phba->hbalock);
7464 pring = lpfc_phba_elsring(phba);
7466 /* Bail out if we've no ELS wq, like in PCI error recovery case. */
7467 if (unlikely(!pring)) {
7468 spin_unlock_irq(&phba->hbalock);
7472 if (phba->sli_rev == LPFC_SLI_REV4)
7473 spin_lock(&pring->ring_lock);
7475 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7476 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
7479 if (piocb->vport != vport)
7481 list_add_tail(&piocb->dlist, &abort_list);
7483 if (phba->sli_rev == LPFC_SLI_REV4)
7484 spin_unlock(&pring->ring_lock);
7485 spin_unlock_irq(&phba->hbalock);
7486 /* Abort each iocb on the aborted list and remove the dlist links. */
7487 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7488 spin_lock_irq(&phba->hbalock);
7489 list_del_init(&piocb->dlist);
7490 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7491 spin_unlock_irq(&phba->hbalock);
7493 if (!list_empty(&abort_list))
7494 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7495 "3387 abort list for txq not empty\n");
7496 INIT_LIST_HEAD(&abort_list);
7498 spin_lock_irq(&phba->hbalock);
7499 if (phba->sli_rev == LPFC_SLI_REV4)
7500 spin_lock(&pring->ring_lock);
7502 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
7505 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
7509 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7510 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
7511 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
7512 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7513 cmd->ulpCommand == CMD_ABORT_XRI_CN)
7516 if (piocb->vport != vport)
7519 list_del_init(&piocb->list);
7520 list_add_tail(&piocb->list, &abort_list);
7522 if (phba->sli_rev == LPFC_SLI_REV4)
7523 spin_unlock(&pring->ring_lock);
7524 spin_unlock_irq(&phba->hbalock);
7526 /* Cancell all the IOCBs from the completions list */
7527 lpfc_sli_cancel_iocbs(phba, &abort_list,
7528 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
7534 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7535 * @phba: pointer to lpfc hba data structure.
7537 * This routine is used to clean up all the outstanding ELS commands on a
7538 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7539 * routine. After that, it walks the ELS transmit queue to remove all the
7540 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7541 * the IOCBs with the completion callback function associated, the callback
7542 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7543 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7544 * callback function associated, the IOCB will simply be released. Finally,
7545 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7546 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7547 * management plane IOCBs that are not part of the discovery state machine)
7548 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7551 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
7553 struct lpfc_vport *vport;
7554 list_for_each_entry(vport, &phba->port_list, listentry)
7555 lpfc_els_flush_cmd(vport);
7561 * lpfc_send_els_failure_event - Posts an ELS command failure event
7562 * @phba: Pointer to hba context object.
7563 * @cmdiocbp: Pointer to command iocb which reported error.
7564 * @rspiocbp: Pointer to response iocb which reported error.
7566 * This function sends an event when there is an ELS command
7570 lpfc_send_els_failure_event(struct lpfc_hba *phba,
7571 struct lpfc_iocbq *cmdiocbp,
7572 struct lpfc_iocbq *rspiocbp)
7574 struct lpfc_vport *vport = cmdiocbp->vport;
7575 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7576 struct lpfc_lsrjt_event lsrjt_event;
7577 struct lpfc_fabric_event_header fabric_event;
7579 struct lpfc_nodelist *ndlp;
7582 ndlp = cmdiocbp->context1;
7583 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
7586 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
7587 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
7588 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
7589 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
7590 sizeof(struct lpfc_name));
7591 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
7592 sizeof(struct lpfc_name));
7593 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7594 cmdiocbp->context2)->virt);
7595 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
7596 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
7597 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
7598 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
7599 fc_host_post_vendor_event(shost,
7600 fc_get_event_number(),
7601 sizeof(lsrjt_event),
7602 (char *)&lsrjt_event,
7606 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
7607 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
7608 fabric_event.event_type = FC_REG_FABRIC_EVENT;
7609 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
7610 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
7612 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
7613 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
7614 sizeof(struct lpfc_name));
7615 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
7616 sizeof(struct lpfc_name));
7617 fc_host_post_vendor_event(shost,
7618 fc_get_event_number(),
7619 sizeof(fabric_event),
7620 (char *)&fabric_event,
7628 * lpfc_send_els_event - Posts unsolicited els event
7629 * @vport: Pointer to vport object.
7630 * @ndlp: Pointer FC node object.
7631 * @cmd: ELS command code.
7633 * This function posts an event when there is an incoming
7634 * unsolicited ELS command.
7637 lpfc_send_els_event(struct lpfc_vport *vport,
7638 struct lpfc_nodelist *ndlp,
7641 struct lpfc_els_event_header *els_data = NULL;
7642 struct lpfc_logo_event *logo_data = NULL;
7643 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7645 if (*payload == ELS_CMD_LOGO) {
7646 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
7648 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7649 "0148 Failed to allocate memory "
7650 "for LOGO event\n");
7653 els_data = &logo_data->header;
7655 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
7658 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7659 "0149 Failed to allocate memory "
7664 els_data->event_type = FC_REG_ELS_EVENT;
7667 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
7670 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
7673 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
7676 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
7677 /* Copy the WWPN in the LOGO payload */
7678 memcpy(logo_data->logo_wwpn, &payload[2],
7679 sizeof(struct lpfc_name));
7685 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
7686 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
7687 if (*payload == ELS_CMD_LOGO) {
7688 fc_host_post_vendor_event(shost,
7689 fc_get_event_number(),
7690 sizeof(struct lpfc_logo_event),
7695 fc_host_post_vendor_event(shost,
7696 fc_get_event_number(),
7697 sizeof(struct lpfc_els_event_header),
7708 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7709 * @phba: pointer to lpfc hba data structure.
7710 * @pring: pointer to a SLI ring.
7711 * @vport: pointer to a host virtual N_Port data structure.
7712 * @elsiocb: pointer to lpfc els command iocb data structure.
7714 * This routine is used for processing the IOCB associated with a unsolicited
7715 * event. It first determines whether there is an existing ndlp that matches
7716 * the DID from the unsolicited IOCB. If not, it will create a new one with
7717 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7718 * IOCB is then used to invoke the proper routine and to set up proper state
7719 * of the discovery state machine.
7722 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7723 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
7725 struct Scsi_Host *shost;
7726 struct lpfc_nodelist *ndlp;
7729 uint32_t cmd, did, newnode;
7730 uint8_t rjt_exp, rjt_err = 0;
7731 IOCB_t *icmd = &elsiocb->iocb;
7733 if (!vport || !(elsiocb->context2))
7737 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
7739 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
7740 lpfc_post_buffer(phba, pring, 1);
7742 did = icmd->un.rcvels.remoteID;
7743 if (icmd->ulpStatus) {
7744 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7745 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7746 icmd->ulpStatus, icmd->un.ulpWord[4], did);
7750 /* Check to see if link went down during discovery */
7751 if (lpfc_els_chk_latt(vport))
7754 /* Ignore traffic received during vport shutdown. */
7755 if (vport->load_flag & FC_UNLOADING)
7758 /* If NPort discovery is delayed drop incoming ELS */
7759 if ((vport->fc_flag & FC_DISC_DELAYED) &&
7760 (cmd != ELS_CMD_PLOGI))
7763 ndlp = lpfc_findnode_did(vport, did);
7765 /* Cannot find existing Fabric ndlp, so allocate a new one */
7766 ndlp = lpfc_nlp_init(vport, did);
7769 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7771 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7772 ndlp->nlp_type |= NLP_FABRIC;
7773 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7774 ndlp = lpfc_enable_node(vport, ndlp,
7775 NLP_STE_UNUSED_NODE);
7778 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7780 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7781 ndlp->nlp_type |= NLP_FABRIC;
7782 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
7783 /* This is similar to the new node path */
7784 ndlp = lpfc_nlp_get(ndlp);
7787 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7791 phba->fc_stat.elsRcvFrame++;
7794 * Do not process any unsolicited ELS commands
7795 * if the ndlp is in DEV_LOSS
7797 shost = lpfc_shost_from_vport(vport);
7798 spin_lock_irq(shost->host_lock);
7799 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
7800 spin_unlock_irq(shost->host_lock);
7803 spin_unlock_irq(shost->host_lock);
7805 elsiocb->context1 = lpfc_nlp_get(ndlp);
7806 elsiocb->vport = vport;
7808 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
7809 cmd &= ELS_CMD_MASK;
7811 /* ELS command <elsCmd> received from NPORT <did> */
7812 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7813 "0112 ELS command x%x received from NPORT x%x "
7814 "Data: x%x x%x x%x x%x\n",
7815 cmd, did, vport->port_state, vport->fc_flag,
7816 vport->fc_myDID, vport->fc_prevDID);
7818 /* reject till our FLOGI completes */
7819 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
7820 (cmd != ELS_CMD_FLOGI)) {
7821 rjt_err = LSRJT_LOGICAL_BSY;
7822 rjt_exp = LSEXP_NOTHING_MORE;
7828 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7829 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7830 did, vport->port_state, ndlp->nlp_flag);
7832 phba->fc_stat.elsRcvPLOGI++;
7833 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
7834 if (phba->sli_rev == LPFC_SLI_REV4 &&
7835 (phba->pport->fc_flag & FC_PT2PT)) {
7836 vport->fc_prevDID = vport->fc_myDID;
7837 /* Our DID needs to be updated before registering
7838 * the vfi. This is done in lpfc_rcv_plogi but
7839 * that is called after the reg_vfi.
7841 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
7842 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7843 "3312 Remote port assigned DID x%x "
7844 "%x\n", vport->fc_myDID,
7848 lpfc_send_els_event(vport, ndlp, payload);
7850 /* If Nport discovery is delayed, reject PLOGIs */
7851 if (vport->fc_flag & FC_DISC_DELAYED) {
7852 rjt_err = LSRJT_UNABLE_TPC;
7853 rjt_exp = LSEXP_NOTHING_MORE;
7857 if (vport->port_state < LPFC_DISC_AUTH) {
7858 if (!(phba->pport->fc_flag & FC_PT2PT) ||
7859 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
7860 rjt_err = LSRJT_UNABLE_TPC;
7861 rjt_exp = LSEXP_NOTHING_MORE;
7866 spin_lock_irq(shost->host_lock);
7867 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
7868 spin_unlock_irq(shost->host_lock);
7870 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7875 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7876 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7877 did, vport->port_state, ndlp->nlp_flag);
7879 phba->fc_stat.elsRcvFLOGI++;
7880 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
7885 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7886 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7887 did, vport->port_state, ndlp->nlp_flag);
7889 phba->fc_stat.elsRcvLOGO++;
7890 lpfc_send_els_event(vport, ndlp, payload);
7891 if (vport->port_state < LPFC_DISC_AUTH) {
7892 rjt_err = LSRJT_UNABLE_TPC;
7893 rjt_exp = LSEXP_NOTHING_MORE;
7896 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
7899 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7900 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7901 did, vport->port_state, ndlp->nlp_flag);
7903 phba->fc_stat.elsRcvPRLO++;
7904 lpfc_send_els_event(vport, ndlp, payload);
7905 if (vport->port_state < LPFC_DISC_AUTH) {
7906 rjt_err = LSRJT_UNABLE_TPC;
7907 rjt_exp = LSEXP_NOTHING_MORE;
7910 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
7913 phba->fc_stat.elsRcvLCB++;
7914 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
7917 phba->fc_stat.elsRcvRDP++;
7918 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
7921 phba->fc_stat.elsRcvRSCN++;
7922 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
7927 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7928 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7929 did, vport->port_state, ndlp->nlp_flag);
7931 lpfc_send_els_event(vport, ndlp, payload);
7932 phba->fc_stat.elsRcvADISC++;
7933 if (vport->port_state < LPFC_DISC_AUTH) {
7934 rjt_err = LSRJT_UNABLE_TPC;
7935 rjt_exp = LSEXP_NOTHING_MORE;
7938 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7942 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7943 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7944 did, vport->port_state, ndlp->nlp_flag);
7946 phba->fc_stat.elsRcvPDISC++;
7947 if (vport->port_state < LPFC_DISC_AUTH) {
7948 rjt_err = LSRJT_UNABLE_TPC;
7949 rjt_exp = LSEXP_NOTHING_MORE;
7952 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7956 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7957 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7958 did, vport->port_state, ndlp->nlp_flag);
7960 phba->fc_stat.elsRcvFARPR++;
7961 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
7964 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7965 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7966 did, vport->port_state, ndlp->nlp_flag);
7968 phba->fc_stat.elsRcvFARP++;
7969 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
7972 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7973 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7974 did, vport->port_state, ndlp->nlp_flag);
7976 phba->fc_stat.elsRcvFAN++;
7977 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
7980 case ELS_CMD_NVMEPRLI:
7981 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7982 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7983 did, vport->port_state, ndlp->nlp_flag);
7985 phba->fc_stat.elsRcvPRLI++;
7986 if ((vport->port_state < LPFC_DISC_AUTH) &&
7987 (vport->fc_flag & FC_FABRIC)) {
7988 rjt_err = LSRJT_UNABLE_TPC;
7989 rjt_exp = LSEXP_NOTHING_MORE;
7992 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
7995 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7996 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7997 did, vport->port_state, ndlp->nlp_flag);
7999 phba->fc_stat.elsRcvLIRR++;
8000 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
8005 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8006 "RCV RLS: did:x%x/ste:x%x flg:x%x",
8007 did, vport->port_state, ndlp->nlp_flag);
8009 phba->fc_stat.elsRcvRLS++;
8010 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
8015 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8016 "RCV RPS: did:x%x/ste:x%x flg:x%x",
8017 did, vport->port_state, ndlp->nlp_flag);
8019 phba->fc_stat.elsRcvRPS++;
8020 lpfc_els_rcv_rps(vport, elsiocb, ndlp);
8025 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8026 "RCV RPL: did:x%x/ste:x%x flg:x%x",
8027 did, vport->port_state, ndlp->nlp_flag);
8029 phba->fc_stat.elsRcvRPL++;
8030 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
8035 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8036 "RCV RNID: did:x%x/ste:x%x flg:x%x",
8037 did, vport->port_state, ndlp->nlp_flag);
8039 phba->fc_stat.elsRcvRNID++;
8040 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
8045 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8046 "RCV RTV: did:x%x/ste:x%x flg:x%x",
8047 did, vport->port_state, ndlp->nlp_flag);
8048 phba->fc_stat.elsRcvRTV++;
8049 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
8054 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8055 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
8056 did, vport->port_state, ndlp->nlp_flag);
8058 phba->fc_stat.elsRcvRRQ++;
8059 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
8064 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8065 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
8066 did, vport->port_state, ndlp->nlp_flag);
8068 phba->fc_stat.elsRcvECHO++;
8069 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
8074 /* receive this due to exchange closed */
8075 rjt_err = LSRJT_UNABLE_TPC;
8076 rjt_exp = LSEXP_INVALID_OX_RX;
8079 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8080 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
8081 cmd, did, vport->port_state);
8083 /* Unsupported ELS command, reject */
8084 rjt_err = LSRJT_CMD_UNSUPPORTED;
8085 rjt_exp = LSEXP_NOTHING_MORE;
8087 /* Unknown ELS command <elsCmd> received from NPORT <did> */
8088 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8089 "0115 Unknown ELS command x%x "
8090 "received from NPORT x%x\n", cmd, did);
8097 /* check if need to LS_RJT received ELS cmd */
8099 memset(&stat, 0, sizeof(stat));
8100 stat.un.b.lsRjtRsnCode = rjt_err;
8101 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
8102 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
8106 lpfc_nlp_put(elsiocb->context1);
8107 elsiocb->context1 = NULL;
8111 if (vport && !(vport->load_flag & FC_UNLOADING))
8112 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8113 "0111 Dropping received ELS cmd "
8114 "Data: x%x x%x x%x\n",
8115 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
8116 phba->fc_stat.elsRcvDrop++;
8120 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
8121 * @phba: pointer to lpfc hba data structure.
8122 * @pring: pointer to a SLI ring.
8123 * @elsiocb: pointer to lpfc els iocb data structure.
8125 * This routine is used to process an unsolicited event received from a SLI
8126 * (Service Level Interface) ring. The actual processing of the data buffer
8127 * associated with the unsolicited event is done by invoking the routine
8128 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
8129 * SLI ring on which the unsolicited event was received.
8132 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8133 struct lpfc_iocbq *elsiocb)
8135 struct lpfc_vport *vport = phba->pport;
8136 IOCB_t *icmd = &elsiocb->iocb;
8138 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
8139 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
8141 elsiocb->context1 = NULL;
8142 elsiocb->context2 = NULL;
8143 elsiocb->context3 = NULL;
8145 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
8146 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
8147 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
8148 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
8149 IOERR_RCV_BUFFER_WAITING) {
8150 phba->fc_stat.NoRcvBuf++;
8151 /* Not enough posted buffers; Try posting more buffers */
8152 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
8153 lpfc_post_buffer(phba, pring, 0);
8157 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
8158 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
8159 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
8160 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
8161 vport = phba->pport;
8163 vport = lpfc_find_vport_by_vpid(phba,
8164 icmd->unsli3.rcvsli3.vpi);
8167 /* If there are no BDEs associated
8168 * with this IOCB, there is nothing to do.
8170 if (icmd->ulpBdeCount == 0)
8173 /* type of ELS cmd is first 32bit word
8176 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
8177 elsiocb->context2 = bdeBuf1;
8179 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
8180 icmd->un.cont64[0].addrLow);
8181 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
8185 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
8187 * The different unsolicited event handlers would tell us
8188 * if they are done with "mp" by setting context2 to NULL.
8190 if (elsiocb->context2) {
8191 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
8192 elsiocb->context2 = NULL;
8195 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
8196 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
8197 icmd->ulpBdeCount == 2) {
8198 elsiocb->context2 = bdeBuf2;
8199 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
8200 /* free mp if we are done with it */
8201 if (elsiocb->context2) {
8202 lpfc_in_buf_free(phba, elsiocb->context2);
8203 elsiocb->context2 = NULL;
8209 lpfc_start_fdmi(struct lpfc_vport *vport)
8211 struct lpfc_nodelist *ndlp;
8213 /* If this is the first time, allocate an ndlp and initialize
8214 * it. Otherwise, make sure the node is enabled and then do the
8217 ndlp = lpfc_findnode_did(vport, FDMI_DID);
8219 ndlp = lpfc_nlp_init(vport, FDMI_DID);
8221 ndlp->nlp_type |= NLP_FABRIC;
8226 if (!NLP_CHK_NODE_ACT(ndlp))
8227 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
8230 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8231 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
8236 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
8237 * @phba: pointer to lpfc hba data structure.
8238 * @vport: pointer to a virtual N_Port data structure.
8240 * This routine issues a Port Login (PLOGI) to the Name Server with
8241 * State Change Request (SCR) for a @vport. This routine will create an
8242 * ndlp for the Name Server associated to the @vport if such node does
8243 * not already exist. The PLOGI to Name Server is issued by invoking the
8244 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
8245 * (FDMI) is configured to the @vport, a FDMI node will be created and
8246 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
8249 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
8251 struct lpfc_nodelist *ndlp;
8252 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8255 * If lpfc_delay_discovery parameter is set and the clean address
8256 * bit is cleared and fc fabric parameters chenged, delay FC NPort
8259 spin_lock_irq(shost->host_lock);
8260 if (vport->fc_flag & FC_DISC_DELAYED) {
8261 spin_unlock_irq(shost->host_lock);
8262 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
8263 "3334 Delay fc port discovery for %d seconds\n",
8265 mod_timer(&vport->delayed_disc_tmo,
8266 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
8269 spin_unlock_irq(shost->host_lock);
8271 ndlp = lpfc_findnode_did(vport, NameServer_DID);
8273 ndlp = lpfc_nlp_init(vport, NameServer_DID);
8275 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8276 lpfc_disc_start(vport);
8279 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8280 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8281 "0251 NameServer login: no memory\n");
8284 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
8285 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
8287 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8288 lpfc_disc_start(vport);
8291 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8292 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8293 "0348 NameServer login: node freed\n");
8297 ndlp->nlp_type |= NLP_FABRIC;
8299 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8301 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
8302 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8303 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8304 "0252 Cannot issue NameServer login\n");
8308 if ((phba->cfg_enable_SmartSAN ||
8309 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
8310 (vport->load_flag & FC_ALLOW_FDMI))
8311 lpfc_start_fdmi(vport);
8315 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
8316 * @phba: pointer to lpfc hba data structure.
8317 * @pmb: pointer to the driver internal queue element for mailbox command.
8319 * This routine is the completion callback function to register new vport
8320 * mailbox command. If the new vport mailbox command completes successfully,
8321 * the fabric registration login shall be performed on physical port (the
8322 * new vport created is actually a physical port, with VPI 0) or the port
8323 * login to Name Server for State Change Request (SCR) will be performed
8324 * on virtual port (real virtual port, with VPI greater than 0).
8327 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
8329 struct lpfc_vport *vport = pmb->vport;
8330 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8331 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
8332 MAILBOX_t *mb = &pmb->u.mb;
8335 spin_lock_irq(shost->host_lock);
8336 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8337 spin_unlock_irq(shost->host_lock);
8339 if (mb->mbxStatus) {
8340 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8341 "0915 Register VPI failed : Status: x%x"
8342 " upd bit: x%x \n", mb->mbxStatus,
8343 mb->un.varRegVpi.upd);
8344 if (phba->sli_rev == LPFC_SLI_REV4 &&
8345 mb->un.varRegVpi.upd)
8346 goto mbox_err_exit ;
8348 switch (mb->mbxStatus) {
8349 case 0x11: /* unsupported feature */
8350 case 0x9603: /* max_vpi exceeded */
8351 case 0x9602: /* Link event since CLEAR_LA */
8352 /* giving up on vport registration */
8353 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8354 spin_lock_irq(shost->host_lock);
8355 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
8356 spin_unlock_irq(shost->host_lock);
8357 lpfc_can_disctmo(vport);
8359 /* If reg_vpi fail with invalid VPI status, re-init VPI */
8361 spin_lock_irq(shost->host_lock);
8362 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8363 spin_unlock_irq(shost->host_lock);
8364 lpfc_init_vpi(phba, pmb, vport->vpi);
8366 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
8367 rc = lpfc_sli_issue_mbox(phba, pmb,
8369 if (rc == MBX_NOT_FINISHED) {
8370 lpfc_printf_vlog(vport,
8372 "2732 Failed to issue INIT_VPI"
8373 " mailbox command\n");
8380 /* Try to recover from this error */
8381 if (phba->sli_rev == LPFC_SLI_REV4)
8382 lpfc_sli4_unreg_all_rpis(vport);
8383 lpfc_mbx_unreg_vpi(vport);
8384 spin_lock_irq(shost->host_lock);
8385 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8386 spin_unlock_irq(shost->host_lock);
8387 if (mb->mbxStatus == MBX_NOT_FINISHED)
8389 if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
8390 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
8391 if (phba->sli_rev == LPFC_SLI_REV4)
8392 lpfc_issue_init_vfi(vport);
8394 lpfc_initial_flogi(vport);
8396 lpfc_initial_fdisc(vport);
8401 spin_lock_irq(shost->host_lock);
8402 vport->vpi_state |= LPFC_VPI_REGISTERED;
8403 spin_unlock_irq(shost->host_lock);
8404 if (vport == phba->pport) {
8405 if (phba->sli_rev < LPFC_SLI_REV4)
8406 lpfc_issue_fabric_reglogin(vport);
8409 * If the physical port is instantiated using
8410 * FDISC, do not start vport discovery.
8412 if (vport->port_state != LPFC_FDISC)
8413 lpfc_start_fdiscs(phba);
8414 lpfc_do_scr_ns_plogi(phba, vport);
8417 lpfc_do_scr_ns_plogi(phba, vport);
8420 /* Now, we decrement the ndlp reference count held for this
8425 mempool_free(pmb, phba->mbox_mem_pool);
8430 * lpfc_register_new_vport - Register a new vport with a HBA
8431 * @phba: pointer to lpfc hba data structure.
8432 * @vport: pointer to a host virtual N_Port data structure.
8433 * @ndlp: pointer to a node-list data structure.
8435 * This routine registers the @vport as a new virtual port with a HBA.
8436 * It is done through a registering vpi mailbox command.
8439 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
8440 struct lpfc_nodelist *ndlp)
8442 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8445 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8447 lpfc_reg_vpi(vport, mbox);
8448 mbox->vport = vport;
8449 mbox->context2 = lpfc_nlp_get(ndlp);
8450 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
8451 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
8452 == MBX_NOT_FINISHED) {
8453 /* mailbox command not success, decrement ndlp
8454 * reference count for this command
8457 mempool_free(mbox, phba->mbox_mem_pool);
8459 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8460 "0253 Register VPI: Can't send mbox\n");
8464 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
8465 "0254 Register VPI: no memory\n");
8471 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8472 spin_lock_irq(shost->host_lock);
8473 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
8474 spin_unlock_irq(shost->host_lock);
8479 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
8480 * @phba: pointer to lpfc hba data structure.
8482 * This routine cancels the retry delay timers to all the vports.
8485 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
8487 struct lpfc_vport **vports;
8488 struct lpfc_nodelist *ndlp;
8489 uint32_t link_state;
8492 /* Treat this failure as linkdown for all vports */
8493 link_state = phba->link_state;
8494 lpfc_linkdown(phba);
8495 phba->link_state = link_state;
8497 vports = lpfc_create_vport_work_array(phba);
8500 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8501 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
8503 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
8504 lpfc_els_flush_cmd(vports[i]);
8506 lpfc_destroy_vport_work_array(phba, vports);
8511 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8512 * @phba: pointer to lpfc hba data structure.
8514 * This routine abort all pending discovery commands and
8515 * start a timer to retry FLOGI for the physical port
8519 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
8521 struct lpfc_nodelist *ndlp;
8522 struct Scsi_Host *shost;
8524 /* Cancel the all vports retry delay retry timers */
8525 lpfc_cancel_all_vport_retry_delay_timer(phba);
8527 /* If fabric require FLOGI, then re-instantiate physical login */
8528 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
8532 shost = lpfc_shost_from_vport(phba->pport);
8533 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
8534 spin_lock_irq(shost->host_lock);
8535 ndlp->nlp_flag |= NLP_DELAY_TMO;
8536 spin_unlock_irq(shost->host_lock);
8537 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
8538 phba->pport->port_state = LPFC_FLOGI;
8543 * lpfc_fabric_login_reqd - Check if FLOGI required.
8544 * @phba: pointer to lpfc hba data structure.
8545 * @cmdiocb: pointer to FDISC command iocb.
8546 * @rspiocb: pointer to FDISC response iocb.
8548 * This routine checks if a FLOGI is reguired for FDISC
8552 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
8553 struct lpfc_iocbq *cmdiocb,
8554 struct lpfc_iocbq *rspiocb)
8557 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
8558 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
8565 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8566 * @phba: pointer to lpfc hba data structure.
8567 * @cmdiocb: pointer to lpfc command iocb data structure.
8568 * @rspiocb: pointer to lpfc response iocb data structure.
8570 * This routine is the completion callback function to a Fabric Discover
8571 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8572 * single threaded, each FDISC completion callback function will reset
8573 * the discovery timer for all vports such that the timers will not get
8574 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8575 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8576 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8577 * assigned to the vport has been changed with the completion of the FDISC
8578 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8579 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8580 * routine is invoked to register new vport with the HBA. Otherwise, the
8581 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8582 * Server for State Change Request (SCR).
8585 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8586 struct lpfc_iocbq *rspiocb)
8588 struct lpfc_vport *vport = cmdiocb->vport;
8589 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8590 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
8591 struct lpfc_nodelist *np;
8592 struct lpfc_nodelist *next_np;
8593 IOCB_t *irsp = &rspiocb->iocb;
8594 struct lpfc_iocbq *piocb;
8595 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
8596 struct serv_parm *sp;
8597 uint8_t fabric_param_changed;
8599 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8600 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8601 irsp->ulpStatus, irsp->un.ulpWord[4],
8603 /* Since all FDISCs are being single threaded, we
8604 * must reset the discovery timer for ALL vports
8605 * waiting to send FDISC when one completes.
8607 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
8608 lpfc_set_disctmo(piocb->vport);
8611 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8612 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8613 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
8615 if (irsp->ulpStatus) {
8617 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
8618 lpfc_retry_pport_discovery(phba);
8622 /* Check for retry */
8623 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
8626 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8627 "0126 FDISC failed. (x%x/x%x)\n",
8628 irsp->ulpStatus, irsp->un.ulpWord[4]);
8631 spin_lock_irq(shost->host_lock);
8632 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
8633 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
8634 vport->fc_flag |= FC_FABRIC;
8635 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
8636 vport->fc_flag |= FC_PUBLIC_LOOP;
8637 spin_unlock_irq(shost->host_lock);
8639 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
8640 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
8641 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
8644 sp = prsp->virt + sizeof(uint32_t);
8645 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
8646 memcpy(&vport->fabric_portname, &sp->portName,
8647 sizeof(struct lpfc_name));
8648 memcpy(&vport->fabric_nodename, &sp->nodeName,
8649 sizeof(struct lpfc_name));
8650 if (fabric_param_changed &&
8651 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8652 /* If our NportID changed, we need to ensure all
8653 * remaining NPORTs get unreg_login'ed so we can
8656 list_for_each_entry_safe(np, next_np,
8657 &vport->fc_nodes, nlp_listp) {
8658 if (!NLP_CHK_NODE_ACT(ndlp) ||
8659 (np->nlp_state != NLP_STE_NPR_NODE) ||
8660 !(np->nlp_flag & NLP_NPR_ADISC))
8662 spin_lock_irq(shost->host_lock);
8663 np->nlp_flag &= ~NLP_NPR_ADISC;
8664 spin_unlock_irq(shost->host_lock);
8665 lpfc_unreg_rpi(vport, np);
8667 lpfc_cleanup_pending_mbox(vport);
8669 if (phba->sli_rev == LPFC_SLI_REV4)
8670 lpfc_sli4_unreg_all_rpis(vport);
8672 lpfc_mbx_unreg_vpi(vport);
8673 spin_lock_irq(shost->host_lock);
8674 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8675 if (phba->sli_rev == LPFC_SLI_REV4)
8676 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
8678 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
8679 spin_unlock_irq(shost->host_lock);
8680 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
8681 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8683 * Driver needs to re-reg VPI in order for f/w
8684 * to update the MAC address.
8686 lpfc_register_new_vport(phba, vport, ndlp);
8690 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
8691 lpfc_issue_init_vpi(vport);
8692 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
8693 lpfc_register_new_vport(phba, vport, ndlp);
8695 lpfc_do_scr_ns_plogi(phba, vport);
8698 if (vport->fc_vport &&
8699 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS))
8700 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8701 /* Cancel discovery timer */
8702 lpfc_can_disctmo(vport);
8705 lpfc_els_free_iocb(phba, cmdiocb);
8709 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8710 * @vport: pointer to a virtual N_Port data structure.
8711 * @ndlp: pointer to a node-list data structure.
8712 * @retry: number of retries to the command IOCB.
8714 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8715 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8716 * routine to issue the IOCB, which makes sure only one outstanding fabric
8717 * IOCB will be sent off HBA at any given time.
8719 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8720 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8721 * will be stored into the context1 field of the IOCB for the completion
8722 * callback function to the FDISC ELS command.
8725 * 0 - Successfully issued fdisc iocb command
8726 * 1 - Failed to issue fdisc iocb command
8729 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
8732 struct lpfc_hba *phba = vport->phba;
8734 struct lpfc_iocbq *elsiocb;
8735 struct serv_parm *sp;
8738 int did = ndlp->nlp_DID;
8741 vport->port_state = LPFC_FDISC;
8742 vport->fc_myDID = 0;
8743 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
8744 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
8747 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8748 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8749 "0255 Issue FDISC: no IOCB\n");
8753 icmd = &elsiocb->iocb;
8754 icmd->un.elsreq64.myID = 0;
8755 icmd->un.elsreq64.fl = 1;
8758 * SLI3 ports require a different context type value than SLI4.
8759 * Catch SLI3 ports here and override the prep.
8761 if (phba->sli_rev == LPFC_SLI_REV3) {
8766 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8767 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
8768 pcmd += sizeof(uint32_t); /* CSP Word 1 */
8769 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
8770 sp = (struct serv_parm *) pcmd;
8771 /* Setup CSPs accordingly for Fabric */
8772 sp->cmn.e_d_tov = 0;
8773 sp->cmn.w2.r_a_tov = 0;
8774 sp->cmn.virtual_fabric_support = 0;
8775 sp->cls1.classValid = 0;
8776 sp->cls2.seqDelivery = 1;
8777 sp->cls3.seqDelivery = 1;
8779 pcmd += sizeof(uint32_t); /* CSP Word 2 */
8780 pcmd += sizeof(uint32_t); /* CSP Word 3 */
8781 pcmd += sizeof(uint32_t); /* CSP Word 4 */
8782 pcmd += sizeof(uint32_t); /* Port Name */
8783 memcpy(pcmd, &vport->fc_portname, 8);
8784 pcmd += sizeof(uint32_t); /* Node Name */
8785 pcmd += sizeof(uint32_t); /* Node Name */
8786 memcpy(pcmd, &vport->fc_nodename, 8);
8787 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
8788 lpfc_set_disctmo(vport);
8790 phba->fc_stat.elsXmitFDISC++;
8791 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
8793 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8794 "Issue FDISC: did:x%x",
8797 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
8798 if (rc == IOCB_ERROR) {
8799 lpfc_els_free_iocb(phba, elsiocb);
8800 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8801 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8802 "0256 Issue FDISC: Cannot send IOCB\n");
8805 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
8810 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8811 * @phba: pointer to lpfc hba data structure.
8812 * @cmdiocb: pointer to lpfc command iocb data structure.
8813 * @rspiocb: pointer to lpfc response iocb data structure.
8815 * This routine is the completion callback function to the issuing of a LOGO
8816 * ELS command off a vport. It frees the command IOCB and then decrement the
8817 * reference count held on ndlp for this completion function, indicating that
8818 * the reference to the ndlp is no long needed. Note that the
8819 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8820 * callback function and an additional explicit ndlp reference decrementation
8821 * will trigger the actual release of the ndlp.
8824 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8825 struct lpfc_iocbq *rspiocb)
8827 struct lpfc_vport *vport = cmdiocb->vport;
8829 struct lpfc_nodelist *ndlp;
8830 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8832 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
8833 irsp = &rspiocb->iocb;
8834 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8835 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8836 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
8838 lpfc_els_free_iocb(phba, cmdiocb);
8839 vport->unreg_vpi_cmpl = VPORT_ERROR;
8841 /* Trigger the release of the ndlp after logo */
8844 /* NPIV LOGO completes to NPort <nlp_DID> */
8845 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8846 "2928 NPIV LOGO completes to NPort x%x "
8847 "Data: x%x x%x x%x x%x\n",
8848 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
8849 irsp->ulpTimeout, vport->num_disc_nodes);
8851 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
8852 spin_lock_irq(shost->host_lock);
8853 vport->fc_flag &= ~FC_NDISC_ACTIVE;
8854 vport->fc_flag &= ~FC_FABRIC;
8855 spin_unlock_irq(shost->host_lock);
8856 lpfc_can_disctmo(vport);
8861 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8862 * @vport: pointer to a virtual N_Port data structure.
8863 * @ndlp: pointer to a node-list data structure.
8865 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8867 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8868 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8869 * will be stored into the context1 field of the IOCB for the completion
8870 * callback function to the LOGO ELS command.
8873 * 0 - Successfully issued logo off the @vport
8874 * 1 - Failed to issue logo off the @vport
8877 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
8879 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8880 struct lpfc_hba *phba = vport->phba;
8881 struct lpfc_iocbq *elsiocb;
8885 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
8886 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
8891 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8892 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
8893 pcmd += sizeof(uint32_t);
8895 /* Fill in LOGO payload */
8896 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
8897 pcmd += sizeof(uint32_t);
8898 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
8900 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8901 "Issue LOGO npiv did:x%x flg:x%x",
8902 ndlp->nlp_DID, ndlp->nlp_flag, 0);
8904 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
8905 spin_lock_irq(shost->host_lock);
8906 ndlp->nlp_flag |= NLP_LOGO_SND;
8907 spin_unlock_irq(shost->host_lock);
8908 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
8910 spin_lock_irq(shost->host_lock);
8911 ndlp->nlp_flag &= ~NLP_LOGO_SND;
8912 spin_unlock_irq(shost->host_lock);
8913 lpfc_els_free_iocb(phba, elsiocb);
8920 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8921 * @ptr: holder for the timer function associated data.
8923 * This routine is invoked by the fabric iocb block timer after
8924 * timeout. It posts the fabric iocb block timeout event by setting the
8925 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8926 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8927 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8928 * posted event WORKER_FABRIC_BLOCK_TMO.
8931 lpfc_fabric_block_timeout(unsigned long ptr)
8933 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
8934 unsigned long iflags;
8935 uint32_t tmo_posted;
8937 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8938 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
8940 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
8941 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8944 lpfc_worker_wake_up(phba);
8949 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8950 * @phba: pointer to lpfc hba data structure.
8952 * This routine issues one fabric iocb from the driver internal list to
8953 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8954 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8955 * remove one pending fabric iocb from the driver internal list and invokes
8956 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8959 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
8961 struct lpfc_iocbq *iocb;
8962 unsigned long iflags;
8968 spin_lock_irqsave(&phba->hbalock, iflags);
8969 /* Post any pending iocb to the SLI layer */
8970 if (atomic_read(&phba->fabric_iocb_count) == 0) {
8971 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
8974 /* Increment fabric iocb count to hold the position */
8975 atomic_inc(&phba->fabric_iocb_count);
8977 spin_unlock_irqrestore(&phba->hbalock, iflags);
8979 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8980 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8981 iocb->iocb_flag |= LPFC_IO_FABRIC;
8983 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8984 "Fabric sched1: ste:x%x",
8985 iocb->vport->port_state, 0, 0);
8987 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8989 if (ret == IOCB_ERROR) {
8990 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8991 iocb->fabric_iocb_cmpl = NULL;
8992 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8994 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
8995 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
8996 iocb->iocb_cmpl(phba, iocb, iocb);
8998 atomic_dec(&phba->fabric_iocb_count);
9007 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
9008 * @phba: pointer to lpfc hba data structure.
9010 * This routine unblocks the issuing fabric iocb command. The function
9011 * will clear the fabric iocb block bit and then invoke the routine
9012 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
9013 * from the driver internal fabric iocb list.
9016 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
9018 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
9020 lpfc_resume_fabric_iocbs(phba);
9025 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
9026 * @phba: pointer to lpfc hba data structure.
9028 * This routine blocks the issuing fabric iocb for a specified amount of
9029 * time (currently 100 ms). This is done by set the fabric iocb block bit
9030 * and set up a timeout timer for 100ms. When the block bit is set, no more
9031 * fabric iocb will be issued out of the HBA.
9034 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
9038 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
9039 /* Start a timer to unblock fabric iocbs after 100ms */
9041 mod_timer(&phba->fabric_block_timer,
9042 jiffies + msecs_to_jiffies(100));
9048 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
9049 * @phba: pointer to lpfc hba data structure.
9050 * @cmdiocb: pointer to lpfc command iocb data structure.
9051 * @rspiocb: pointer to lpfc response iocb data structure.
9053 * This routine is the callback function that is put to the fabric iocb's
9054 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
9055 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
9056 * function first restores and invokes the original iocb's callback function
9057 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
9058 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
9061 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9062 struct lpfc_iocbq *rspiocb)
9066 BUG_ON((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC);
9068 switch (rspiocb->iocb.ulpStatus) {
9069 case IOSTAT_NPORT_RJT:
9070 case IOSTAT_FABRIC_RJT:
9071 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
9072 lpfc_block_fabric_iocbs(phba);
9076 case IOSTAT_NPORT_BSY:
9077 case IOSTAT_FABRIC_BSY:
9078 lpfc_block_fabric_iocbs(phba);
9082 stat.un.lsRjtError =
9083 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
9084 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
9085 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
9086 lpfc_block_fabric_iocbs(phba);
9090 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0);
9092 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
9093 cmdiocb->fabric_iocb_cmpl = NULL;
9094 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
9095 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
9097 atomic_dec(&phba->fabric_iocb_count);
9098 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
9099 /* Post any pending iocbs to HBA */
9100 lpfc_resume_fabric_iocbs(phba);
9105 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
9106 * @phba: pointer to lpfc hba data structure.
9107 * @iocb: pointer to lpfc command iocb data structure.
9109 * This routine is used as the top-level API for issuing a fabric iocb command
9110 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
9111 * function makes sure that only one fabric bound iocb will be outstanding at
9112 * any given time. As such, this function will first check to see whether there
9113 * is already an outstanding fabric iocb on the wire. If so, it will put the
9114 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
9115 * issued later. Otherwise, it will issue the iocb on the wire and update the
9116 * fabric iocb count it indicate that there is one fabric iocb on the wire.
9118 * Note, this implementation has a potential sending out fabric IOCBs out of
9119 * order. The problem is caused by the construction of the "ready" boolen does
9120 * not include the condition that the internal fabric IOCB list is empty. As
9121 * such, it is possible a fabric IOCB issued by this routine might be "jump"
9122 * ahead of the fabric IOCBs in the internal list.
9125 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
9126 * IOCB_ERROR - failed to issue fabric iocb
9129 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
9131 unsigned long iflags;
9135 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1);
9137 spin_lock_irqsave(&phba->hbalock, iflags);
9138 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
9139 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
9142 /* Increment fabric iocb count to hold the position */
9143 atomic_inc(&phba->fabric_iocb_count);
9144 spin_unlock_irqrestore(&phba->hbalock, iflags);
9146 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
9147 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
9148 iocb->iocb_flag |= LPFC_IO_FABRIC;
9150 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
9151 "Fabric sched2: ste:x%x",
9152 iocb->vport->port_state, 0, 0);
9154 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
9156 if (ret == IOCB_ERROR) {
9157 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
9158 iocb->fabric_iocb_cmpl = NULL;
9159 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
9160 atomic_dec(&phba->fabric_iocb_count);
9163 spin_lock_irqsave(&phba->hbalock, iflags);
9164 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
9165 spin_unlock_irqrestore(&phba->hbalock, iflags);
9172 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
9173 * @vport: pointer to a virtual N_Port data structure.
9175 * This routine aborts all the IOCBs associated with a @vport from the
9176 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
9177 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9178 * list, removes each IOCB associated with the @vport off the list, set the
9179 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9180 * associated with the IOCB.
9182 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
9184 LIST_HEAD(completions);
9185 struct lpfc_hba *phba = vport->phba;
9186 struct lpfc_iocbq *tmp_iocb, *piocb;
9188 spin_lock_irq(&phba->hbalock);
9189 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
9192 if (piocb->vport != vport)
9195 list_move_tail(&piocb->list, &completions);
9197 spin_unlock_irq(&phba->hbalock);
9199 /* Cancel all the IOCBs from the completions list */
9200 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9205 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
9206 * @ndlp: pointer to a node-list data structure.
9208 * This routine aborts all the IOCBs associated with an @ndlp from the
9209 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
9210 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
9211 * list, removes each IOCB associated with the @ndlp off the list, set the
9212 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
9213 * associated with the IOCB.
9215 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
9217 LIST_HEAD(completions);
9218 struct lpfc_hba *phba = ndlp->phba;
9219 struct lpfc_iocbq *tmp_iocb, *piocb;
9220 struct lpfc_sli_ring *pring;
9222 pring = lpfc_phba_elsring(phba);
9224 spin_lock_irq(&phba->hbalock);
9225 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
9227 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
9229 list_move_tail(&piocb->list, &completions);
9232 spin_unlock_irq(&phba->hbalock);
9234 /* Cancel all the IOCBs from the completions list */
9235 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9240 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
9241 * @phba: pointer to lpfc hba data structure.
9243 * This routine aborts all the IOCBs currently on the driver internal
9244 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
9245 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
9246 * list, removes IOCBs off the list, set the status feild to
9247 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
9250 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
9252 LIST_HEAD(completions);
9254 spin_lock_irq(&phba->hbalock);
9255 list_splice_init(&phba->fabric_iocb_list, &completions);
9256 spin_unlock_irq(&phba->hbalock);
9258 /* Cancel all the IOCBs from the completions list */
9259 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9264 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
9265 * @vport: pointer to lpfc vport data structure.
9267 * This routine is invoked by the vport cleanup for deletions and the cleanup
9268 * for an ndlp on removal.
9271 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
9273 struct lpfc_hba *phba = vport->phba;
9274 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9275 unsigned long iflag = 0;
9277 spin_lock_irqsave(&phba->hbalock, iflag);
9278 spin_lock(&phba->sli4_hba.sgl_list_lock);
9279 list_for_each_entry_safe(sglq_entry, sglq_next,
9280 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9281 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
9282 sglq_entry->ndlp = NULL;
9284 spin_unlock(&phba->sli4_hba.sgl_list_lock);
9285 spin_unlock_irqrestore(&phba->hbalock, iflag);
9290 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
9291 * @phba: pointer to lpfc hba data structure.
9292 * @axri: pointer to the els xri abort wcqe structure.
9294 * This routine is invoked by the worker thread to process a SLI4 slow-path
9298 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
9299 struct sli4_wcqe_xri_aborted *axri)
9301 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
9302 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
9305 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
9306 unsigned long iflag = 0;
9307 struct lpfc_nodelist *ndlp;
9308 struct lpfc_sli_ring *pring;
9310 pring = lpfc_phba_elsring(phba);
9312 spin_lock_irqsave(&phba->hbalock, iflag);
9313 spin_lock(&phba->sli4_hba.sgl_list_lock);
9314 list_for_each_entry_safe(sglq_entry, sglq_next,
9315 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
9316 if (sglq_entry->sli4_xritag == xri) {
9317 list_del(&sglq_entry->list);
9318 ndlp = sglq_entry->ndlp;
9319 sglq_entry->ndlp = NULL;
9320 list_add_tail(&sglq_entry->list,
9321 &phba->sli4_hba.lpfc_els_sgl_list);
9322 sglq_entry->state = SGL_FREED;
9323 spin_unlock(&phba->sli4_hba.sgl_list_lock);
9324 spin_unlock_irqrestore(&phba->hbalock, iflag);
9325 lpfc_set_rrq_active(phba, ndlp,
9326 sglq_entry->sli4_lxritag,
9329 /* Check if TXQ queue needs to be serviced */
9330 if (!(list_empty(&pring->txq)))
9331 lpfc_worker_wake_up(phba);
9335 spin_unlock(&phba->sli4_hba.sgl_list_lock);
9336 lxri = lpfc_sli4_xri_inrange(phba, xri);
9337 if (lxri == NO_XRI) {
9338 spin_unlock_irqrestore(&phba->hbalock, iflag);
9341 spin_lock(&phba->sli4_hba.sgl_list_lock);
9342 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
9343 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
9344 spin_unlock(&phba->sli4_hba.sgl_list_lock);
9345 spin_unlock_irqrestore(&phba->hbalock, iflag);
9348 sglq_entry->state = SGL_XRI_ABORTED;
9349 spin_unlock(&phba->sli4_hba.sgl_list_lock);
9350 spin_unlock_irqrestore(&phba->hbalock, iflag);
9354 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
9355 * @vport: pointer to virtual port object.
9356 * @ndlp: nodelist pointer for the impacted node.
9358 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
9359 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
9360 * the driver is required to send a LOGO to the remote node before it
9361 * attempts to recover its login to the remote node.
9364 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
9365 struct lpfc_nodelist *ndlp)
9367 struct Scsi_Host *shost;
9368 struct lpfc_hba *phba;
9369 unsigned long flags = 0;
9371 shost = lpfc_shost_from_vport(vport);
9373 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
9374 lpfc_printf_log(phba, KERN_INFO,
9375 LOG_SLI, "3093 No rport recovery needed. "
9376 "rport in state 0x%x\n", ndlp->nlp_state);
9379 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9380 "3094 Start rport recovery on shost id 0x%x "
9381 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
9383 shost->host_no, ndlp->nlp_DID,
9384 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
9387 * The rport is not responding. Remove the FCP-2 flag to prevent
9388 * an ADISC in the follow-up recovery code.
9390 spin_lock_irqsave(shost->host_lock, flags);
9391 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
9392 spin_unlock_irqrestore(shost->host_lock, flags);
9393 lpfc_issue_els_logo(vport, ndlp, 0);
9394 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);