1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2020 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. 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>
33 #include <uapi/scsi/fc/fc_fs.h>
34 #include <uapi/scsi/fc/fc_els.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_logmsg.h"
45 #include "lpfc_crtn.h"
46 #include "lpfc_vport.h"
47 #include "lpfc_debugfs.h"
49 static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
51 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
53 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport);
54 static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
55 struct lpfc_nodelist *ndlp, uint8_t retry);
56 static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
57 struct lpfc_iocbq *iocb);
59 static int lpfc_max_els_tries = 3;
62 * lpfc_els_chk_latt - Check host link attention event for a vport
63 * @vport: pointer to a host virtual N_Port data structure.
65 * This routine checks whether there is an outstanding host link
66 * attention event during the discovery process with the @vport. It is done
67 * by reading the HBA's Host Attention (HA) register. If there is any host
68 * link attention events during this @vport's discovery process, the @vport
69 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
70 * be issued if the link state is not already in host link cleared state,
71 * and a return code shall indicate whether the host link attention event
74 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
75 * state in LPFC_VPORT_READY, the request for checking host link attention
76 * event will be ignored and a return code shall indicate no host link
77 * attention event had happened.
80 * 0 - no host link attention event happened
81 * 1 - host link attention event happened
84 lpfc_els_chk_latt(struct lpfc_vport *vport)
86 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
87 struct lpfc_hba *phba = vport->phba;
90 if (vport->port_state >= LPFC_VPORT_READY ||
91 phba->link_state == LPFC_LINK_DOWN ||
92 phba->sli_rev > LPFC_SLI_REV3)
95 /* Read the HBA Host Attention Register */
96 if (lpfc_readl(phba->HAregaddr, &ha_copy))
99 if (!(ha_copy & HA_LATT))
102 /* Pending Link Event during Discovery */
103 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
104 "0237 Pending Link Event during "
105 "Discovery: State x%x\n",
106 phba->pport->port_state);
108 /* CLEAR_LA should re-enable link attention events and
109 * we should then immediately take a LATT event. The
110 * LATT processing should call lpfc_linkdown() which
111 * will cleanup any left over in-progress discovery
114 spin_lock_irq(shost->host_lock);
115 vport->fc_flag |= FC_ABORT_DISCOVERY;
116 spin_unlock_irq(shost->host_lock);
118 if (phba->link_state != LPFC_CLEAR_LA)
119 lpfc_issue_clear_la(phba, vport);
125 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
126 * @vport: pointer to a host virtual N_Port data structure.
127 * @expectRsp: flag indicating whether response is expected.
128 * @cmdSize: size of the ELS command.
129 * @retry: number of retries to the command IOCB when it fails.
130 * @ndlp: pointer to a node-list data structure.
131 * @did: destination identifier.
132 * @elscmd: the ELS command code.
134 * This routine is used for allocating a lpfc-IOCB data structure from
135 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
136 * passed into the routine for discovery state machine to issue an Extended
137 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
138 * and preparation routine that is used by all the discovery state machine
139 * routines and the ELS command-specific fields will be later set up by
140 * the individual discovery machine routines after calling this routine
141 * allocating and preparing a generic IOCB data structure. It fills in the
142 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
143 * payload and response payload (if expected). The reference count on the
144 * ndlp is incremented by 1 and the reference to the ndlp is put into
145 * context1 of the IOCB data structure for this IOCB to hold the ndlp
146 * reference for the command's callback function to access later.
149 * Pointer to the newly allocated/prepared els iocb data structure
150 * NULL - when els iocb data structure allocation/preparation failed
153 lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
154 uint16_t cmdSize, uint8_t retry,
155 struct lpfc_nodelist *ndlp, uint32_t did,
158 struct lpfc_hba *phba = vport->phba;
159 struct lpfc_iocbq *elsiocb;
160 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
161 struct ulp_bde64 *bpl;
165 if (!lpfc_is_link_up(phba))
168 /* Allocate buffer for command iocb */
169 elsiocb = lpfc_sli_get_iocbq(phba);
175 * If this command is for fabric controller and HBA running
176 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
178 if ((did == Fabric_DID) &&
179 (phba->hba_flag & HBA_FIP_SUPPORT) &&
180 ((elscmd == ELS_CMD_FLOGI) ||
181 (elscmd == ELS_CMD_FDISC) ||
182 (elscmd == ELS_CMD_LOGO)))
185 elsiocb->iocb_flag |=
186 ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT)
187 & LPFC_FIP_ELS_ID_MASK);
190 elsiocb->iocb_flag |=
191 ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT)
192 & LPFC_FIP_ELS_ID_MASK);
195 elsiocb->iocb_flag |=
196 ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT)
197 & LPFC_FIP_ELS_ID_MASK);
201 elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
203 icmd = &elsiocb->iocb;
205 /* fill in BDEs for command */
206 /* Allocate buffer for command payload */
207 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
209 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
210 if (!pcmd || !pcmd->virt)
211 goto els_iocb_free_pcmb_exit;
213 INIT_LIST_HEAD(&pcmd->list);
215 /* Allocate buffer for response payload */
217 prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
219 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
221 if (!prsp || !prsp->virt)
222 goto els_iocb_free_prsp_exit;
223 INIT_LIST_HEAD(&prsp->list);
227 /* Allocate buffer for Buffer ptr list */
228 pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
230 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
232 if (!pbuflist || !pbuflist->virt)
233 goto els_iocb_free_pbuf_exit;
235 INIT_LIST_HEAD(&pbuflist->list);
238 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
239 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
240 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
241 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
243 icmd->un.elsreq64.remoteID = did; /* DID */
244 icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
245 if (elscmd == ELS_CMD_FLOGI)
246 icmd->ulpTimeout = FF_DEF_RATOV * 2;
247 else if (elscmd == ELS_CMD_LOGO)
248 icmd->ulpTimeout = phba->fc_ratov;
250 icmd->ulpTimeout = phba->fc_ratov * 2;
252 icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
253 icmd->un.xseq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
254 icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
255 icmd->un.xseq64.bdl.bdeSize = sizeof(struct ulp_bde64);
256 icmd->un.xseq64.xmit_els_remoteID = did; /* DID */
257 icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
259 icmd->ulpBdeCount = 1;
261 icmd->ulpClass = CLASS3;
264 * If we have NPIV enabled, we want to send ELS traffic by VPI.
265 * For SLI4, since the driver controls VPIs we also want to include
266 * all ELS pt2pt protocol traffic as well.
268 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) ||
269 ((phba->sli_rev == LPFC_SLI_REV4) &&
270 (vport->fc_flag & FC_PT2PT))) {
273 icmd->un.elsreq64.myID = vport->fc_myDID;
275 /* For ELS_REQUEST64_CR, use the VPI by default */
276 icmd->ulpContext = phba->vpi_ids[vport->vpi];
280 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
281 if (elscmd == ELS_CMD_ECHO)
282 icmd->ulpCt_l = 0; /* context = invalid RPI */
284 icmd->ulpCt_l = 1; /* context = VPI */
287 bpl = (struct ulp_bde64 *) pbuflist->virt;
288 bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
289 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
290 bpl->tus.f.bdeSize = cmdSize;
291 bpl->tus.f.bdeFlags = 0;
292 bpl->tus.w = le32_to_cpu(bpl->tus.w);
296 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
297 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
298 bpl->tus.f.bdeSize = FCELSSIZE;
299 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
300 bpl->tus.w = le32_to_cpu(bpl->tus.w);
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 "
317 "rpi x%x fc_flag:x%x\n",
318 elscmd, did, elsiocb->iotag,
319 vport->port_state, ndlp->nlp_rpi,
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 rpi x%x fc_flag x%x\n",
327 elscmd, ndlp->nlp_DID, elsiocb->iotag,
328 cmdSize, vport->port_state,
329 ndlp->nlp_rpi, vport->fc_flag);
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);
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->ctx_ndlp = lpfc_nlp_get(ndlp);
417 if (!mbox->ctx_ndlp) {
422 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
423 if (rc == MBX_NOT_FINISHED) {
425 goto fail_issue_reg_login;
430 fail_issue_reg_login:
431 /* decrement the reference count on ndlp just incremented
432 * for the failed mbox command.
436 mp = (struct lpfc_dmabuf *)mbox->ctx_buf;
437 lpfc_mbuf_free(phba, mp->virt, mp->phys);
440 mempool_free(mbox, phba->mbox_mem_pool);
443 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
444 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
445 "0249 Cannot issue Register Fabric login: Err %d\n",
451 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
452 * @vport: pointer to a host virtual N_Port data structure.
454 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
455 * the @vport. This mailbox command is necessary for SLI4 port only.
458 * 0 - successfully issued REG_VFI for @vport
459 * A failure code otherwise.
462 lpfc_issue_reg_vfi(struct lpfc_vport *vport)
464 struct lpfc_hba *phba = vport->phba;
465 LPFC_MBOXQ_t *mboxq = NULL;
466 struct lpfc_nodelist *ndlp;
467 struct lpfc_dmabuf *dmabuf = NULL;
470 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
471 if ((phba->sli_rev == LPFC_SLI_REV4) &&
472 !(phba->link_flag & LS_LOOPBACK_MODE) &&
473 !(vport->fc_flag & FC_PT2PT)) {
474 ndlp = lpfc_findnode_did(vport, Fabric_DID);
481 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
487 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */
488 if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
489 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
494 dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
499 memcpy(dmabuf->virt, &phba->fc_fabparam,
500 sizeof(struct serv_parm));
503 vport->port_state = LPFC_FABRIC_CFG_LINK;
505 lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
507 lpfc_reg_vfi(mboxq, vport, 0);
509 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
510 mboxq->vport = vport;
511 mboxq->ctx_buf = dmabuf;
512 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
513 if (rc == MBX_NOT_FINISHED) {
521 mempool_free(mboxq, phba->mbox_mem_pool);
524 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
528 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
529 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
530 "0289 Issue Register VFI failed: Err %d\n", rc);
535 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
536 * @vport: pointer to a host virtual N_Port data structure.
538 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
539 * the @vport. This mailbox command is necessary for SLI4 port only.
542 * 0 - successfully issued REG_VFI for @vport
543 * A failure code otherwise.
546 lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
548 struct lpfc_hba *phba = vport->phba;
549 struct Scsi_Host *shost;
553 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
555 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
556 "2556 UNREG_VFI mbox allocation failed"
557 "HBA state x%x\n", phba->pport->port_state);
561 lpfc_unreg_vfi(mboxq, vport);
562 mboxq->vport = vport;
563 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
565 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
566 if (rc == MBX_NOT_FINISHED) {
567 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
568 "2557 UNREG_VFI issue mbox failed rc x%x "
570 rc, phba->pport->port_state);
571 mempool_free(mboxq, phba->mbox_mem_pool);
575 shost = lpfc_shost_from_vport(vport);
576 spin_lock_irq(shost->host_lock);
577 vport->fc_flag &= ~FC_VFI_REGISTERED;
578 spin_unlock_irq(shost->host_lock);
583 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
584 * @vport: pointer to a host virtual N_Port data structure.
585 * @sp: pointer to service parameter data structure.
587 * This routine is called from FLOGI/FDISC completion handler functions.
588 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
589 * node nodename is changed in the completion service parameter else return
590 * 0. This function also set flag in the vport data structure to delay
591 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
592 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
593 * node nodename is changed in the completion service parameter.
596 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
597 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
601 lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
602 struct serv_parm *sp)
604 struct lpfc_hba *phba = vport->phba;
605 uint8_t fabric_param_changed = 0;
606 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
608 if ((vport->fc_prevDID != vport->fc_myDID) ||
609 memcmp(&vport->fabric_portname, &sp->portName,
610 sizeof(struct lpfc_name)) ||
611 memcmp(&vport->fabric_nodename, &sp->nodeName,
612 sizeof(struct lpfc_name)) ||
613 (vport->vport_flag & FAWWPN_PARAM_CHG)) {
614 fabric_param_changed = 1;
615 vport->vport_flag &= ~FAWWPN_PARAM_CHG;
618 * Word 1 Bit 31 in common service parameter is overloaded.
619 * Word 1 Bit 31 in FLOGI request is multiple NPort request
620 * Word 1 Bit 31 in FLOGI response is clean address bit
622 * If fabric parameter is changed and clean address bit is
623 * cleared delay nport discovery if
624 * - vport->fc_prevDID != 0 (not initial discovery) OR
625 * - lpfc_delay_discovery module parameter is set.
627 if (fabric_param_changed && !sp->cmn.clean_address_bit &&
628 (vport->fc_prevDID || phba->cfg_delay_discovery)) {
629 spin_lock_irq(shost->host_lock);
630 vport->fc_flag |= FC_DISC_DELAYED;
631 spin_unlock_irq(shost->host_lock);
634 return fabric_param_changed;
639 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
640 * @vport: pointer to a host virtual N_Port data structure.
641 * @ndlp: pointer to a node-list data structure.
642 * @sp: pointer to service parameter data structure.
643 * @irsp: pointer to the IOCB within the lpfc response IOCB.
645 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
646 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
647 * port in a fabric topology. It properly sets up the parameters to the @ndlp
648 * from the IOCB response. It also check the newly assigned N_Port ID to the
649 * @vport against the previously assigned N_Port ID. If it is different from
650 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
651 * is invoked on all the remaining nodes with the @vport to unregister the
652 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
653 * is invoked to register login to the fabric.
656 * 0 - Success (currently, always return 0)
659 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
660 struct serv_parm *sp, IOCB_t *irsp)
662 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
663 struct lpfc_hba *phba = vport->phba;
664 struct lpfc_nodelist *np;
665 struct lpfc_nodelist *next_np;
666 uint8_t fabric_param_changed;
668 spin_lock_irq(shost->host_lock);
669 vport->fc_flag |= FC_FABRIC;
670 spin_unlock_irq(shost->host_lock);
672 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
673 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
674 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
676 phba->fc_edtovResol = sp->cmn.edtovResolution;
677 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
679 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
680 spin_lock_irq(shost->host_lock);
681 vport->fc_flag |= FC_PUBLIC_LOOP;
682 spin_unlock_irq(shost->host_lock);
685 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
686 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
687 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
688 ndlp->nlp_class_sup = 0;
689 if (sp->cls1.classValid)
690 ndlp->nlp_class_sup |= FC_COS_CLASS1;
691 if (sp->cls2.classValid)
692 ndlp->nlp_class_sup |= FC_COS_CLASS2;
693 if (sp->cls3.classValid)
694 ndlp->nlp_class_sup |= FC_COS_CLASS3;
695 if (sp->cls4.classValid)
696 ndlp->nlp_class_sup |= FC_COS_CLASS4;
697 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
698 sp->cmn.bbRcvSizeLsb;
700 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
701 if (fabric_param_changed) {
702 /* Reset FDMI attribute masks based on config parameter */
703 if (phba->cfg_enable_SmartSAN ||
704 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
705 /* Setup appropriate attribute masks */
706 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
707 if (phba->cfg_enable_SmartSAN)
708 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
710 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
712 vport->fdmi_hba_mask = 0;
713 vport->fdmi_port_mask = 0;
717 memcpy(&vport->fabric_portname, &sp->portName,
718 sizeof(struct lpfc_name));
719 memcpy(&vport->fabric_nodename, &sp->nodeName,
720 sizeof(struct lpfc_name));
721 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
723 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
724 if (sp->cmn.response_multiple_NPort) {
725 lpfc_printf_vlog(vport, KERN_WARNING,
727 "1816 FLOGI NPIV supported, "
728 "response data 0x%x\n",
729 sp->cmn.response_multiple_NPort);
730 spin_lock_irq(&phba->hbalock);
731 phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
732 spin_unlock_irq(&phba->hbalock);
734 /* Because we asked f/w for NPIV it still expects us
735 to call reg_vnpid atleast for the physcial host */
736 lpfc_printf_vlog(vport, KERN_WARNING,
738 "1817 Fabric does not support NPIV "
739 "- configuring single port mode.\n");
740 spin_lock_irq(&phba->hbalock);
741 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
742 spin_unlock_irq(&phba->hbalock);
747 * For FC we need to do some special processing because of the SLI
748 * Port's default settings of the Common Service Parameters.
750 if ((phba->sli_rev == LPFC_SLI_REV4) &&
751 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
752 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
753 if (fabric_param_changed)
754 lpfc_unregister_fcf_prep(phba);
756 /* This should just update the VFI CSPs*/
757 if (vport->fc_flag & FC_VFI_REGISTERED)
758 lpfc_issue_reg_vfi(vport);
761 if (fabric_param_changed &&
762 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
764 /* If our NportID changed, we need to ensure all
765 * remaining NPORTs get unreg_login'ed.
767 list_for_each_entry_safe(np, next_np,
768 &vport->fc_nodes, nlp_listp) {
769 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
770 !(np->nlp_flag & NLP_NPR_ADISC))
772 spin_lock_irq(&np->lock);
773 np->nlp_flag &= ~NLP_NPR_ADISC;
774 spin_unlock_irq(&np->lock);
775 lpfc_unreg_rpi(vport, np);
777 lpfc_cleanup_pending_mbox(vport);
779 if (phba->sli_rev == LPFC_SLI_REV4) {
780 lpfc_sli4_unreg_all_rpis(vport);
781 lpfc_mbx_unreg_vpi(vport);
782 spin_lock_irq(shost->host_lock);
783 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
784 spin_unlock_irq(shost->host_lock);
788 * For SLI3 and SLI4, the VPI needs to be reregistered in
789 * response to this fabric parameter change event.
791 spin_lock_irq(shost->host_lock);
792 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
793 spin_unlock_irq(shost->host_lock);
794 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
795 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
797 * Driver needs to re-reg VPI in order for f/w
798 * to update the MAC address.
800 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
801 lpfc_register_new_vport(phba, vport, ndlp);
805 if (phba->sli_rev < LPFC_SLI_REV4) {
806 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
807 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
808 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
809 lpfc_register_new_vport(phba, vport, ndlp);
811 lpfc_issue_fabric_reglogin(vport);
813 ndlp->nlp_type |= NLP_FABRIC;
814 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
815 if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
816 (vport->vpi_state & LPFC_VPI_REGISTERED)) {
817 lpfc_start_fdiscs(phba);
818 lpfc_do_scr_ns_plogi(phba, vport);
819 } else if (vport->fc_flag & FC_VFI_REGISTERED)
820 lpfc_issue_init_vpi(vport);
822 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
823 "3135 Need register VFI: (x%x/%x)\n",
824 vport->fc_prevDID, vport->fc_myDID);
825 lpfc_issue_reg_vfi(vport);
832 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
833 * @vport: pointer to a host virtual N_Port data structure.
834 * @ndlp: pointer to a node-list data structure.
835 * @sp: pointer to service parameter data structure.
837 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
838 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
839 * in a point-to-point topology. First, the @vport's N_Port Name is compared
840 * with the received N_Port Name: if the @vport's N_Port Name is greater than
841 * the received N_Port Name lexicographically, this node shall assign local
842 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
843 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
844 * this node shall just wait for the remote node to issue PLOGI and assign
852 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
853 struct serv_parm *sp)
855 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
856 struct lpfc_hba *phba = vport->phba;
860 spin_lock_irq(shost->host_lock);
861 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
862 vport->fc_flag |= FC_PT2PT;
863 spin_unlock_irq(shost->host_lock);
865 /* If we are pt2pt with another NPort, force NPIV off! */
866 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
868 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
869 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
870 lpfc_unregister_fcf_prep(phba);
872 spin_lock_irq(shost->host_lock);
873 vport->fc_flag &= ~FC_VFI_REGISTERED;
874 spin_unlock_irq(shost->host_lock);
875 phba->fc_topology_changed = 0;
878 rc = memcmp(&vport->fc_portname, &sp->portName,
879 sizeof(vport->fc_portname));
882 /* This side will initiate the PLOGI */
883 spin_lock_irq(shost->host_lock);
884 vport->fc_flag |= FC_PT2PT_PLOGI;
885 spin_unlock_irq(shost->host_lock);
888 * N_Port ID cannot be 0, set our Id to LocalID
889 * the other side will be RemoteID.
894 vport->fc_myDID = PT2PT_LocalID;
896 /* Decrement ndlp reference count indicating that ndlp can be
897 * safely released when other references to it are done.
901 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
904 * Cannot find existing Fabric ndlp, so allocate a
907 ndlp = lpfc_nlp_init(vport, PT2PT_RemoteID);
912 memcpy(&ndlp->nlp_portname, &sp->portName,
913 sizeof(struct lpfc_name));
914 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
915 sizeof(struct lpfc_name));
916 /* Set state will put ndlp onto node list if not already done */
917 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
918 spin_lock_irq(&ndlp->lock);
919 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
920 spin_unlock_irq(&ndlp->lock);
922 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
926 lpfc_config_link(phba, mbox);
928 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
930 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
931 if (rc == MBX_NOT_FINISHED) {
932 mempool_free(mbox, phba->mbox_mem_pool);
936 /* This side will wait for the PLOGI, decrement ndlp reference
937 * count indicating that ndlp can be released when other
938 * references to it are done.
942 /* Start discovery - this should just do CLEAR_LA */
943 lpfc_disc_start(vport);
952 * lpfc_cmpl_els_flogi - Completion callback function for flogi
953 * @phba: pointer to lpfc hba data structure.
954 * @cmdiocb: pointer to lpfc command iocb data structure.
955 * @rspiocb: pointer to lpfc response iocb data structure.
957 * This routine is the top-level completion callback function for issuing
958 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
959 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
960 * retry has been made (either immediately or delayed with lpfc_els_retry()
961 * returning 1), the command IOCB will be released and function returned.
962 * If the retry attempt has been given up (possibly reach the maximum
963 * number of retries), one additional decrement of ndlp reference shall be
964 * invoked before going out after releasing the command IOCB. This will
965 * actually release the remote node (Note, lpfc_els_free_iocb() will also
966 * invoke one decrement of ndlp reference count). If no error reported in
967 * the IOCB status, the command Port ID field is used to determine whether
968 * this is a point-to-point topology or a fabric topology: if the Port ID
969 * field is assigned, it is a fabric topology; otherwise, it is a
970 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
971 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
972 * specific topology completion conditions.
975 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
976 struct lpfc_iocbq *rspiocb)
978 struct lpfc_vport *vport = cmdiocb->vport;
979 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
980 IOCB_t *irsp = &rspiocb->iocb;
981 struct lpfc_nodelist *ndlp = cmdiocb->context1;
982 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
983 struct serv_parm *sp;
987 /* Check to see if link went down during discovery */
988 if (lpfc_els_chk_latt(vport)) {
989 /* One additional decrement on node reference count to
990 * trigger the release of the node
996 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
997 "FLOGI cmpl: status:x%x/x%x state:x%x",
998 irsp->ulpStatus, irsp->un.ulpWord[4],
1001 if (irsp->ulpStatus) {
1003 * In case of FIP mode, perform roundrobin FCF failover
1004 * due to new FCF discovery
1006 if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
1007 (phba->fcf.fcf_flag & FCF_DISCOVERY)) {
1008 if (phba->link_state < LPFC_LINK_UP)
1009 goto stop_rr_fcf_flogi;
1010 if ((phba->fcoe_cvl_eventtag_attn ==
1011 phba->fcoe_cvl_eventtag) &&
1012 (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1013 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1015 goto stop_rr_fcf_flogi;
1017 phba->fcoe_cvl_eventtag_attn =
1018 phba->fcoe_cvl_eventtag;
1019 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1020 "2611 FLOGI failed on FCF (x%x), "
1021 "status:x%x/x%x, tmo:x%x, perform "
1022 "roundrobin FCF failover\n",
1023 phba->fcf.current_rec.fcf_indx,
1024 irsp->ulpStatus, irsp->un.ulpWord[4],
1026 lpfc_sli4_set_fcf_flogi_fail(phba,
1027 phba->fcf.current_rec.fcf_indx);
1028 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
1029 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
1036 if (!(irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
1037 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1038 IOERR_LOOP_OPEN_FAILURE)))
1039 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1040 "2858 FLOGI failure Status:x%x/x%x TMO"
1041 ":x%x Data x%x x%x\n",
1042 irsp->ulpStatus, irsp->un.ulpWord[4],
1043 irsp->ulpTimeout, phba->hba_flag,
1044 phba->fcf.fcf_flag);
1046 /* Check for retry */
1047 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
1050 lpfc_printf_vlog(vport, KERN_WARNING, LOG_TRACE_EVENT,
1051 "0150 FLOGI failure Status:x%x/x%x "
1052 "xri x%x TMO:x%x\n",
1053 irsp->ulpStatus, irsp->un.ulpWord[4],
1054 cmdiocb->sli4_xritag, irsp->ulpTimeout);
1056 /* If this is not a loop open failure, bail out */
1057 if (!(irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
1058 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
1059 IOERR_LOOP_OPEN_FAILURE)))
1062 /* FLOGI failed, so there is no fabric */
1063 spin_lock_irq(shost->host_lock);
1064 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1065 spin_unlock_irq(shost->host_lock);
1067 /* If private loop, then allow max outstanding els to be
1068 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1069 * alpa map would take too long otherwise.
1071 if (phba->alpa_map[0] == 0)
1072 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
1073 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1074 (!(vport->fc_flag & FC_VFI_REGISTERED) ||
1075 (vport->fc_prevDID != vport->fc_myDID) ||
1076 phba->fc_topology_changed)) {
1077 if (vport->fc_flag & FC_VFI_REGISTERED) {
1078 if (phba->fc_topology_changed) {
1079 lpfc_unregister_fcf_prep(phba);
1080 spin_lock_irq(shost->host_lock);
1081 vport->fc_flag &= ~FC_VFI_REGISTERED;
1082 spin_unlock_irq(shost->host_lock);
1083 phba->fc_topology_changed = 0;
1085 lpfc_sli4_unreg_all_rpis(vport);
1089 /* Do not register VFI if the driver aborted FLOGI */
1090 if (!lpfc_error_lost_link(irsp))
1091 lpfc_issue_reg_vfi(vport);
1098 spin_lock_irq(shost->host_lock);
1099 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
1100 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
1101 spin_unlock_irq(shost->host_lock);
1104 * The FLogI succeeded. Sync the data for the CPU before
1107 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1110 sp = prsp->virt + sizeof(uint32_t);
1112 /* FLOGI completes successfully */
1113 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1114 "0101 FLOGI completes successfully, I/O tag:x%x, "
1115 "xri x%x Data: x%x x%x x%x x%x x%x %x\n",
1116 cmdiocb->iotag, cmdiocb->sli4_xritag,
1117 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
1118 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
1119 vport->port_state, vport->fc_flag);
1121 if (vport->port_state == LPFC_FLOGI) {
1123 * If Common Service Parameters indicate Nport
1124 * we are point to point, if Fport we are Fabric.
1127 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
1128 else if (!(phba->hba_flag & HBA_FCOE_MODE))
1129 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
1131 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1132 "2831 FLOGI response with cleared Fabric "
1133 "bit fcf_index 0x%x "
1134 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1136 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1137 phba->fcf.current_rec.fcf_indx,
1138 phba->fcf.current_rec.switch_name[0],
1139 phba->fcf.current_rec.switch_name[1],
1140 phba->fcf.current_rec.switch_name[2],
1141 phba->fcf.current_rec.switch_name[3],
1142 phba->fcf.current_rec.switch_name[4],
1143 phba->fcf.current_rec.switch_name[5],
1144 phba->fcf.current_rec.switch_name[6],
1145 phba->fcf.current_rec.switch_name[7],
1146 phba->fcf.current_rec.fabric_name[0],
1147 phba->fcf.current_rec.fabric_name[1],
1148 phba->fcf.current_rec.fabric_name[2],
1149 phba->fcf.current_rec.fabric_name[3],
1150 phba->fcf.current_rec.fabric_name[4],
1151 phba->fcf.current_rec.fabric_name[5],
1152 phba->fcf.current_rec.fabric_name[6],
1153 phba->fcf.current_rec.fabric_name[7]);
1156 spin_lock_irq(&phba->hbalock);
1157 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1158 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1159 spin_unlock_irq(&phba->hbalock);
1160 phba->fcf.fcf_redisc_attempted = 0; /* reset */
1164 /* Mark the FCF discovery process done */
1165 if (phba->hba_flag & HBA_FIP_SUPPORT)
1166 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
1168 "2769 FLOGI to FCF (x%x) "
1169 "completed successfully\n",
1170 phba->fcf.current_rec.fcf_indx);
1171 spin_lock_irq(&phba->hbalock);
1172 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1173 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1174 spin_unlock_irq(&phba->hbalock);
1175 phba->fcf.fcf_redisc_attempted = 0; /* reset */
1181 spin_lock_irq(&phba->hbalock);
1182 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1183 spin_unlock_irq(&phba->hbalock);
1186 if (!lpfc_error_lost_link(irsp)) {
1187 /* FLOGI failed, so just use loop map to make discovery list */
1188 lpfc_disc_list_loopmap(vport);
1190 /* Start discovery */
1191 lpfc_disc_start(vport);
1192 } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1193 (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1194 IOERR_SLI_ABORTED) &&
1195 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1196 IOERR_SLI_DOWN))) &&
1197 (phba->link_state != LPFC_CLEAR_LA)) {
1198 /* If FLOGI failed enable link interrupt. */
1199 lpfc_issue_clear_la(phba, vport);
1202 lpfc_els_free_iocb(phba, cmdiocb);
1207 * lpfc_cmpl_els_link_down - Completion callback function for ELS command
1208 * aborted during a link down
1209 * @phba: pointer to lpfc hba data structure.
1210 * @cmdiocb: pointer to lpfc command iocb data structure.
1211 * @rspiocb: pointer to lpfc response iocb data structure.
1215 lpfc_cmpl_els_link_down(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1216 struct lpfc_iocbq *rspiocb)
1222 pcmd = (uint32_t *)(((struct lpfc_dmabuf *)cmdiocb->context2)->virt);
1224 irsp = &rspiocb->iocb;
1226 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1227 "6445 ELS completes after LINK_DOWN: "
1228 " Status %x/%x cmd x%x flg x%x\n",
1229 irsp->ulpStatus, irsp->un.ulpWord[4], cmd,
1230 cmdiocb->iocb_flag);
1232 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) {
1233 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
1234 atomic_dec(&phba->fabric_iocb_count);
1236 lpfc_els_free_iocb(phba, cmdiocb);
1240 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1241 * @vport: pointer to a host virtual N_Port data structure.
1242 * @ndlp: pointer to a node-list data structure.
1243 * @retry: number of retries to the command IOCB.
1245 * This routine issues a Fabric Login (FLOGI) Request ELS command
1246 * for a @vport. The initiator service parameters are put into the payload
1247 * of the FLOGI Request IOCB and the top-level callback function pointer
1248 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1249 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1250 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1252 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1253 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1254 * will be stored into the context1 field of the IOCB for the completion
1255 * callback function to the FLOGI ELS command.
1258 * 0 - successfully issued flogi iocb for @vport
1259 * 1 - failed to issue flogi iocb for @vport
1262 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1265 struct lpfc_hba *phba = vport->phba;
1266 struct serv_parm *sp;
1268 struct lpfc_iocbq *elsiocb;
1269 struct lpfc_iocbq defer_flogi_acc;
1275 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1276 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1277 ndlp->nlp_DID, ELS_CMD_FLOGI);
1282 icmd = &elsiocb->iocb;
1283 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1285 /* For FLOGI request, remainder of payload is service parameters */
1286 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
1287 pcmd += sizeof(uint32_t);
1288 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1289 sp = (struct serv_parm *) pcmd;
1291 /* Setup CSPs accordingly for Fabric */
1292 sp->cmn.e_d_tov = 0;
1293 sp->cmn.w2.r_a_tov = 0;
1294 sp->cmn.virtual_fabric_support = 0;
1295 sp->cls1.classValid = 0;
1296 if (sp->cmn.fcphLow < FC_PH3)
1297 sp->cmn.fcphLow = FC_PH3;
1298 if (sp->cmn.fcphHigh < FC_PH3)
1299 sp->cmn.fcphHigh = FC_PH3;
1301 if (phba->sli_rev == LPFC_SLI_REV4) {
1302 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1303 LPFC_SLI_INTF_IF_TYPE_0) {
1304 elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
1305 elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
1306 /* FLOGI needs to be 3 for WQE FCFI */
1307 /* Set the fcfi to the fcfi we registered with */
1308 elsiocb->iocb.ulpContext = phba->fcf.fcfi;
1310 /* Can't do SLI4 class2 without support sequence coalescing */
1311 sp->cls2.classValid = 0;
1312 sp->cls2.seqDelivery = 0;
1314 /* Historical, setting sequential-delivery bit for SLI3 */
1315 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
1316 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
1317 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1318 sp->cmn.request_multiple_Nport = 1;
1319 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1323 sp->cmn.request_multiple_Nport = 0;
1326 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
1327 icmd->un.elsreq64.myID = 0;
1328 icmd->un.elsreq64.fl = 1;
1331 tmo = phba->fc_ratov;
1332 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
1333 lpfc_set_disctmo(vport);
1334 phba->fc_ratov = tmo;
1336 phba->fc_stat.elsXmitFLOGI++;
1337 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
1339 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1340 "Issue FLOGI: opt:x%x",
1341 phba->sli3_options, 0, 0);
1343 elsiocb->context1 = lpfc_nlp_get(ndlp);
1344 if (!elsiocb->context1)
1347 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
1348 if (rc == IOCB_ERROR)
1351 phba->hba_flag |= HBA_FLOGI_ISSUED;
1353 /* Check for a deferred FLOGI ACC condition */
1354 if (phba->defer_flogi_acc_flag) {
1355 did = vport->fc_myDID;
1356 vport->fc_myDID = Fabric_DID;
1358 memset(&defer_flogi_acc, 0, sizeof(struct lpfc_iocbq));
1360 defer_flogi_acc.iocb.ulpContext = phba->defer_flogi_acc_rx_id;
1361 defer_flogi_acc.iocb.unsli3.rcvsli3.ox_id =
1362 phba->defer_flogi_acc_ox_id;
1364 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1365 "3354 Xmit deferred FLOGI ACC: rx_id: x%x,"
1366 " ox_id: x%x, hba_flag x%x\n",
1367 phba->defer_flogi_acc_rx_id,
1368 phba->defer_flogi_acc_ox_id, phba->hba_flag);
1370 /* Send deferred FLOGI ACC */
1371 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, &defer_flogi_acc,
1374 phba->defer_flogi_acc_flag = false;
1376 vport->fc_myDID = did;
1382 lpfc_els_free_iocb(phba, elsiocb);
1387 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1388 * @phba: pointer to lpfc hba data structure.
1390 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1391 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1392 * list and issues an abort IOCB commond on each outstanding IOCB that
1393 * contains a active Fabric_DID ndlp. Note that this function is to issue
1394 * the abort IOCB command on all the outstanding IOCBs, thus when this
1395 * function returns, it does not guarantee all the IOCBs are actually aborted.
1398 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1401 lpfc_els_abort_flogi(struct lpfc_hba *phba)
1403 struct lpfc_sli_ring *pring;
1404 struct lpfc_iocbq *iocb, *next_iocb;
1405 struct lpfc_nodelist *ndlp;
1408 /* Abort outstanding I/O on NPort <nlp_DID> */
1409 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1410 "0201 Abort outstanding I/O on NPort x%x\n",
1413 pring = lpfc_phba_elsring(phba);
1414 if (unlikely(!pring))
1418 * Check the txcmplq for an iocb that matches the nport the driver is
1421 spin_lock_irq(&phba->hbalock);
1422 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1424 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
1425 ndlp = (struct lpfc_nodelist *)(iocb->context1);
1426 if (ndlp && (ndlp->nlp_DID == Fabric_DID))
1427 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1430 spin_unlock_irq(&phba->hbalock);
1436 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1437 * @vport: pointer to a host virtual N_Port data structure.
1439 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1440 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1441 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1442 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1443 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1444 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1448 * 0 - failed to issue initial flogi for @vport
1449 * 1 - successfully issued initial flogi for @vport
1452 lpfc_initial_flogi(struct lpfc_vport *vport)
1454 struct lpfc_nodelist *ndlp;
1456 vport->port_state = LPFC_FLOGI;
1457 lpfc_set_disctmo(vport);
1459 /* First look for the Fabric ndlp */
1460 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1462 /* Cannot find existing Fabric ndlp, so allocate a new one */
1463 ndlp = lpfc_nlp_init(vport, Fabric_DID);
1466 /* Set the node type */
1467 ndlp->nlp_type |= NLP_FABRIC;
1469 /* Put ndlp onto node list */
1470 lpfc_enqueue_node(vport, ndlp);
1473 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
1474 /* This decrement of reference count to node shall kick off
1475 * the release of the node.
1484 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1485 * @vport: pointer to a host virtual N_Port data structure.
1487 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1488 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1489 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1490 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1491 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1492 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1496 * 0 - failed to issue initial fdisc for @vport
1497 * 1 - successfully issued initial fdisc for @vport
1500 lpfc_initial_fdisc(struct lpfc_vport *vport)
1502 struct lpfc_nodelist *ndlp;
1504 /* First look for the Fabric ndlp */
1505 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1507 /* Cannot find existing Fabric ndlp, so allocate a new one */
1508 ndlp = lpfc_nlp_init(vport, Fabric_DID);
1512 /* NPIV is only supported in Fabrics. */
1513 ndlp->nlp_type |= NLP_FABRIC;
1515 /* Put ndlp onto node list */
1516 lpfc_enqueue_node(vport, ndlp);
1519 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
1520 /* decrement node reference count to trigger the release of
1530 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1531 * @vport: pointer to a host virtual N_Port data structure.
1533 * This routine checks whether there are more remaining Port Logins
1534 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1535 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1536 * to issue ELS PLOGIs up to the configured discover threads with the
1537 * @vport (@vport->cfg_discovery_threads). The function also decrement
1538 * the @vport's num_disc_node by 1 if it is not already 0.
1541 lpfc_more_plogi(struct lpfc_vport *vport)
1543 if (vport->num_disc_nodes)
1544 vport->num_disc_nodes--;
1546 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1547 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1548 "0232 Continue discovery with %d PLOGIs to go "
1549 "Data: x%x x%x x%x\n",
1550 vport->num_disc_nodes, vport->fc_plogi_cnt,
1551 vport->fc_flag, vport->port_state);
1552 /* Check to see if there are more PLOGIs to be sent */
1553 if (vport->fc_flag & FC_NLP_MORE)
1554 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1555 lpfc_els_disc_plogi(vport);
1561 * lpfc_plogi_confirm_nport - Confirm plogi wwpn matches stored ndlp
1562 * @phba: pointer to lpfc hba data structure.
1563 * @prsp: pointer to response IOCB payload.
1564 * @ndlp: pointer to a node-list data structure.
1566 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1567 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1568 * The following cases are considered N_Port confirmed:
1569 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1570 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1571 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1572 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1573 * 1) if there is a node on vport list other than the @ndlp with the same
1574 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1575 * on that node to release the RPI associated with the node; 2) if there is
1576 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1577 * into, a new node shall be allocated (or activated). In either case, the
1578 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1579 * be released and the new_ndlp shall be put on to the vport node list and
1580 * its pointer returned as the confirmed node.
1582 * Note that before the @ndlp got "released", the keepDID from not-matching
1583 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1584 * of the @ndlp. This is because the release of @ndlp is actually to put it
1585 * into an inactive state on the vport node list and the vport node list
1586 * management algorithm does not allow two node with a same DID.
1589 * pointer to the PLOGI N_Port @ndlp
1591 static struct lpfc_nodelist *
1592 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
1593 struct lpfc_nodelist *ndlp)
1595 struct lpfc_vport *vport = ndlp->vport;
1596 struct lpfc_nodelist *new_ndlp;
1597 struct serv_parm *sp;
1598 uint8_t name[sizeof(struct lpfc_name)];
1599 uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
1600 uint32_t keep_new_nlp_flag = 0;
1601 uint16_t keep_nlp_state;
1602 u32 keep_nlp_fc4_type = 0;
1603 struct lpfc_nvme_rport *keep_nrport = NULL;
1604 unsigned long *active_rrqs_xri_bitmap = NULL;
1606 /* Fabric nodes can have the same WWPN so we don't bother searching
1607 * by WWPN. Just return the ndlp that was given to us.
1609 if (ndlp->nlp_type & NLP_FABRIC)
1612 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
1613 memset(name, 0, sizeof(struct lpfc_name));
1615 /* Now we find out if the NPort we are logging into, matches the WWPN
1616 * we have for that ndlp. If not, we have some work to do.
1618 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
1620 /* return immediately if the WWPN matches ndlp */
1621 if (new_ndlp == ndlp)
1624 if (phba->sli_rev == LPFC_SLI_REV4) {
1625 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1627 if (active_rrqs_xri_bitmap)
1628 memset(active_rrqs_xri_bitmap, 0,
1629 phba->cfg_rrq_xri_bitmap_sz);
1632 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
1633 "3178 PLOGI confirm: ndlp x%x x%x x%x: "
1634 "new_ndlp x%x x%x x%x\n",
1635 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_fc4_type,
1636 (new_ndlp ? new_ndlp->nlp_DID : 0),
1637 (new_ndlp ? new_ndlp->nlp_flag : 0),
1638 (new_ndlp ? new_ndlp->nlp_fc4_type : 0));
1641 rc = memcmp(&ndlp->nlp_portname, name,
1642 sizeof(struct lpfc_name));
1644 if (active_rrqs_xri_bitmap)
1645 mempool_free(active_rrqs_xri_bitmap,
1646 phba->active_rrq_pool);
1649 new_ndlp = lpfc_nlp_init(vport, ndlp->nlp_DID);
1651 if (active_rrqs_xri_bitmap)
1652 mempool_free(active_rrqs_xri_bitmap,
1653 phba->active_rrq_pool);
1657 keepDID = new_ndlp->nlp_DID;
1658 if (phba->sli_rev == LPFC_SLI_REV4 &&
1659 active_rrqs_xri_bitmap)
1660 memcpy(active_rrqs_xri_bitmap,
1661 new_ndlp->active_rrqs_xri_bitmap,
1662 phba->cfg_rrq_xri_bitmap_sz);
1665 /* At this point in this routine, we know new_ndlp will be
1666 * returned. however, any previous GID_FTs that were done
1667 * would have updated nlp_fc4_type in ndlp, so we must ensure
1668 * new_ndlp has the right value.
1670 if (vport->fc_flag & FC_FABRIC) {
1671 keep_nlp_fc4_type = new_ndlp->nlp_fc4_type;
1672 new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type;
1675 lpfc_unreg_rpi(vport, new_ndlp);
1676 new_ndlp->nlp_DID = ndlp->nlp_DID;
1677 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
1678 if (phba->sli_rev == LPFC_SLI_REV4)
1679 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1680 ndlp->active_rrqs_xri_bitmap,
1681 phba->cfg_rrq_xri_bitmap_sz);
1683 /* Lock both ndlps */
1684 spin_lock_irq(&ndlp->lock);
1685 spin_lock_irq(&new_ndlp->lock);
1686 keep_new_nlp_flag = new_ndlp->nlp_flag;
1687 keep_nlp_flag = ndlp->nlp_flag;
1688 new_ndlp->nlp_flag = ndlp->nlp_flag;
1690 /* if new_ndlp had NLP_UNREG_INP set, keep it */
1691 if (keep_new_nlp_flag & NLP_UNREG_INP)
1692 new_ndlp->nlp_flag |= NLP_UNREG_INP;
1694 new_ndlp->nlp_flag &= ~NLP_UNREG_INP;
1696 /* if new_ndlp had NLP_RPI_REGISTERED set, keep it */
1697 if (keep_new_nlp_flag & NLP_RPI_REGISTERED)
1698 new_ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1700 new_ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
1702 ndlp->nlp_flag = keep_new_nlp_flag;
1704 /* if ndlp had NLP_UNREG_INP set, keep it */
1705 if (keep_nlp_flag & NLP_UNREG_INP)
1706 ndlp->nlp_flag |= NLP_UNREG_INP;
1708 ndlp->nlp_flag &= ~NLP_UNREG_INP;
1710 /* if ndlp had NLP_RPI_REGISTERED set, keep it */
1711 if (keep_nlp_flag & NLP_RPI_REGISTERED)
1712 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1714 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
1716 spin_unlock_irq(&new_ndlp->lock);
1717 spin_unlock_irq(&ndlp->lock);
1719 /* Set nlp_states accordingly */
1720 keep_nlp_state = new_ndlp->nlp_state;
1721 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
1723 /* interchange the nvme remoteport structs */
1724 keep_nrport = new_ndlp->nrport;
1725 new_ndlp->nrport = ndlp->nrport;
1727 /* Move this back to NPR state */
1728 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1729 /* The new_ndlp is replacing ndlp totally, so we need
1730 * to put ndlp on UNUSED list and try to free it.
1732 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1733 "3179 PLOGI confirm NEW: %x %x\n",
1734 new_ndlp->nlp_DID, keepDID);
1736 /* Two ndlps cannot have the same did on the nodelist.
1737 * Note: for this case, ndlp has a NULL WWPN so setting
1738 * the nlp_fc4_type isn't required.
1740 ndlp->nlp_DID = keepDID;
1741 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1742 if (phba->sli_rev == LPFC_SLI_REV4 &&
1743 active_rrqs_xri_bitmap)
1744 memcpy(ndlp->active_rrqs_xri_bitmap,
1745 active_rrqs_xri_bitmap,
1746 phba->cfg_rrq_xri_bitmap_sz);
1749 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1750 "3180 PLOGI confirm SWAP: %x %x\n",
1751 new_ndlp->nlp_DID, keepDID);
1753 lpfc_unreg_rpi(vport, ndlp);
1755 /* Two ndlps cannot have the same did and the fc4
1756 * type must be transferred because the ndlp is in
1759 ndlp->nlp_DID = keepDID;
1760 ndlp->nlp_fc4_type = keep_nlp_fc4_type;
1762 if (phba->sli_rev == LPFC_SLI_REV4 &&
1763 active_rrqs_xri_bitmap)
1764 memcpy(ndlp->active_rrqs_xri_bitmap,
1765 active_rrqs_xri_bitmap,
1766 phba->cfg_rrq_xri_bitmap_sz);
1768 /* Since we are switching over to the new_ndlp,
1769 * reset the old ndlp state
1771 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1772 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
1773 keep_nlp_state = NLP_STE_NPR_NODE;
1774 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1775 ndlp->nrport = keep_nrport;
1779 * If ndlp is not associated with any rport we can drop it here else
1780 * let dev_loss_tmo_callbk trigger DEVICE_RM event
1782 if (!ndlp->rport && (ndlp->nlp_state == NLP_STE_NPR_NODE))
1783 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
1785 if (phba->sli_rev == LPFC_SLI_REV4 &&
1786 active_rrqs_xri_bitmap)
1787 mempool_free(active_rrqs_xri_bitmap,
1788 phba->active_rrq_pool);
1790 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
1791 "3173 PLOGI confirm exit: new_ndlp x%x x%x x%x\n",
1792 new_ndlp->nlp_DID, new_ndlp->nlp_flag,
1793 new_ndlp->nlp_fc4_type);
1799 * lpfc_end_rscn - Check and handle more rscn for a vport
1800 * @vport: pointer to a host virtual N_Port data structure.
1802 * This routine checks whether more Registration State Change
1803 * Notifications (RSCNs) came in while the discovery state machine was in
1804 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1805 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1806 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1807 * handling the RSCNs.
1810 lpfc_end_rscn(struct lpfc_vport *vport)
1812 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1814 if (vport->fc_flag & FC_RSCN_MODE) {
1816 * Check to see if more RSCNs came in while we were
1817 * processing this one.
1819 if (vport->fc_rscn_id_cnt ||
1820 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1821 lpfc_els_handle_rscn(vport);
1823 spin_lock_irq(shost->host_lock);
1824 vport->fc_flag &= ~FC_RSCN_MODE;
1825 spin_unlock_irq(shost->host_lock);
1831 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1832 * @phba: pointer to lpfc hba data structure.
1833 * @cmdiocb: pointer to lpfc command iocb data structure.
1834 * @rspiocb: pointer to lpfc response iocb data structure.
1836 * This routine will call the clear rrq function to free the rrq and
1837 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1838 * exist then the clear_rrq is still called because the rrq needs to
1843 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1844 struct lpfc_iocbq *rspiocb)
1846 struct lpfc_vport *vport = cmdiocb->vport;
1848 struct lpfc_nodelist *ndlp;
1849 struct lpfc_node_rrq *rrq;
1851 /* we pass cmdiocb to state machine which needs rspiocb as well */
1852 rrq = cmdiocb->context_un.rrq;
1853 cmdiocb->context_un.rsp_iocb = rspiocb;
1855 irsp = &rspiocb->iocb;
1856 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1857 "RRQ cmpl: status:x%x/x%x did:x%x",
1858 irsp->ulpStatus, irsp->un.ulpWord[4],
1859 irsp->un.elsreq64.remoteID);
1861 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1862 if (!ndlp || ndlp != rrq->ndlp) {
1863 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1864 "2882 RRQ completes to NPort x%x "
1865 "with no ndlp. Data: x%x x%x x%x\n",
1866 irsp->un.elsreq64.remoteID,
1867 irsp->ulpStatus, irsp->un.ulpWord[4],
1872 /* rrq completes to NPort <nlp_DID> */
1873 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1874 "2880 RRQ completes to NPort x%x "
1875 "Data: x%x x%x x%x x%x x%x\n",
1876 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1877 irsp->ulpTimeout, rrq->xritag, rrq->rxid);
1879 if (irsp->ulpStatus) {
1880 /* Check for retry */
1881 /* RRQ failed Don't print the vport to vport rjts */
1882 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1883 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1884 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1885 (phba)->pport->cfg_log_verbose & LOG_ELS)
1886 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1887 "2881 RRQ failure DID:%06X Status:"
1889 ndlp->nlp_DID, irsp->ulpStatus,
1890 irsp->un.ulpWord[4]);
1894 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1896 lpfc_els_free_iocb(phba, cmdiocb);
1901 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1902 * @phba: pointer to lpfc hba data structure.
1903 * @cmdiocb: pointer to lpfc command iocb data structure.
1904 * @rspiocb: pointer to lpfc response iocb data structure.
1906 * This routine is the completion callback function for issuing the Port
1907 * Login (PLOGI) command. For PLOGI completion, there must be an active
1908 * ndlp on the vport node list that matches the remote node ID from the
1909 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1910 * ignored and command IOCB released. The PLOGI response IOCB status is
1911 * checked for error conditons. If there is error status reported, PLOGI
1912 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1913 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1914 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1915 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1916 * there are additional N_Port nodes with the vport that need to perform
1917 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1921 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1922 struct lpfc_iocbq *rspiocb)
1924 struct lpfc_vport *vport = cmdiocb->vport;
1925 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1927 struct lpfc_nodelist *ndlp, *free_ndlp;
1928 struct lpfc_dmabuf *prsp;
1931 /* we pass cmdiocb to state machine which needs rspiocb as well */
1932 cmdiocb->context_un.rsp_iocb = rspiocb;
1934 irsp = &rspiocb->iocb;
1935 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1936 "PLOGI cmpl: status:x%x/x%x did:x%x",
1937 irsp->ulpStatus, irsp->un.ulpWord[4],
1938 irsp->un.elsreq64.remoteID);
1940 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1942 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1943 "0136 PLOGI completes to NPort x%x "
1944 "with no ndlp. Data: x%x x%x x%x\n",
1945 irsp->un.elsreq64.remoteID,
1946 irsp->ulpStatus, irsp->un.ulpWord[4],
1951 /* Since ndlp can be freed in the disc state machine, note if this node
1952 * is being used during discovery.
1954 spin_lock_irq(&ndlp->lock);
1955 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1956 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1957 spin_unlock_irq(&ndlp->lock);
1959 /* PLOGI completes to NPort <nlp_DID> */
1960 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1961 "0102 PLOGI completes to NPort x%06x "
1962 "Data: x%x x%x x%x x%x x%x\n",
1963 ndlp->nlp_DID, ndlp->nlp_fc4_type,
1964 irsp->ulpStatus, irsp->un.ulpWord[4],
1965 disc, vport->num_disc_nodes);
1967 /* Check to see if link went down during discovery */
1968 if (lpfc_els_chk_latt(vport)) {
1969 spin_lock_irq(&ndlp->lock);
1970 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1971 spin_unlock_irq(&ndlp->lock);
1975 if (irsp->ulpStatus) {
1976 /* Check for retry */
1977 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1978 /* ELS command is being retried */
1980 spin_lock_irq(&ndlp->lock);
1981 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1982 spin_unlock_irq(&ndlp->lock);
1986 /* PLOGI failed Don't print the vport to vport rjts */
1987 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1988 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1989 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1990 (phba)->pport->cfg_log_verbose & LOG_ELS)
1991 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1992 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1993 ndlp->nlp_DID, irsp->ulpStatus,
1994 irsp->un.ulpWord[4]);
1996 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1997 if (lpfc_error_lost_link(irsp))
2000 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2001 NLP_EVT_CMPL_PLOGI);
2003 /* As long as this node is not registered with the scsi or nvme
2004 * transport, it is no longer an active node. Otherwise
2005 * devloss handles the final cleanup.
2007 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
2008 spin_lock_irq(&ndlp->lock);
2009 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2010 spin_unlock_irq(&ndlp->lock);
2011 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2015 /* Good status, call state machine */
2016 prsp = list_entry(((struct lpfc_dmabuf *)
2017 cmdiocb->context2)->list.next,
2018 struct lpfc_dmabuf, list);
2019 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
2020 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2021 NLP_EVT_CMPL_PLOGI);
2025 if (disc && vport->num_disc_nodes) {
2026 /* Check to see if there are more PLOGIs to be sent */
2027 lpfc_more_plogi(vport);
2029 if (vport->num_disc_nodes == 0) {
2030 spin_lock_irq(shost->host_lock);
2031 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2032 spin_unlock_irq(shost->host_lock);
2034 lpfc_can_disctmo(vport);
2035 lpfc_end_rscn(vport);
2040 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2041 "PLOGI Cmpl PUT: did:x%x refcnt %d",
2042 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
2044 /* Release the reference on the original I/O request. */
2045 free_ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
2047 lpfc_els_free_iocb(phba, cmdiocb);
2048 lpfc_nlp_put(free_ndlp);
2053 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
2054 * @vport: pointer to a host virtual N_Port data structure.
2055 * @did: destination port identifier.
2056 * @retry: number of retries to the command IOCB.
2058 * This routine issues a Port Login (PLOGI) command to a remote N_Port
2059 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
2060 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
2061 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
2062 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
2064 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2065 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2066 * will be stored into the context1 field of the IOCB for the completion
2067 * callback function to the PLOGI ELS command.
2070 * 0 - Successfully issued a plogi for @vport
2071 * 1 - failed to issue a plogi for @vport
2074 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
2076 struct lpfc_hba *phba = vport->phba;
2077 struct Scsi_Host *shost;
2078 struct serv_parm *sp;
2079 struct lpfc_nodelist *ndlp;
2080 struct lpfc_iocbq *elsiocb;
2085 ndlp = lpfc_findnode_did(vport, did);
2088 /* Defer the processing of the issue PLOGI until after the
2089 * outstanding UNREG_RPI mbox command completes, unless we
2090 * are going offline. This logic does not apply for Fabric DIDs
2092 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2093 ((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) &&
2094 !(vport->fc_flag & FC_OFFLINE_MODE)) {
2095 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2096 "4110 Issue PLOGI x%x deferred "
2097 "on NPort x%x rpi x%x Data: x%px\n",
2098 ndlp->nlp_defer_did, ndlp->nlp_DID,
2099 ndlp->nlp_rpi, ndlp);
2101 /* We can only defer 1st PLOGI */
2102 if (ndlp->nlp_defer_did == NLP_EVT_NOTHING_PENDING)
2103 ndlp->nlp_defer_did = did;
2108 /* If ndlp is not NULL, we will bump the reference count on it */
2109 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
2110 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
2115 shost = lpfc_shost_from_vport(vport);
2116 spin_lock_irq(&ndlp->lock);
2117 ndlp->nlp_flag &= ~NLP_FCP_PRLI_RJT;
2118 spin_unlock_irq(&ndlp->lock);
2120 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2122 /* For PLOGI request, remainder of payload is service parameters */
2123 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
2124 pcmd += sizeof(uint32_t);
2125 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
2126 sp = (struct serv_parm *) pcmd;
2129 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
2130 * to device on remote loops work.
2132 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
2133 sp->cmn.altBbCredit = 1;
2135 if (sp->cmn.fcphLow < FC_PH_4_3)
2136 sp->cmn.fcphLow = FC_PH_4_3;
2138 if (sp->cmn.fcphHigh < FC_PH3)
2139 sp->cmn.fcphHigh = FC_PH3;
2141 sp->cmn.valid_vendor_ver_level = 0;
2142 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
2143 sp->cmn.bbRcvSizeMsb &= 0xF;
2145 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2146 "Issue PLOGI: did:x%x",
2149 /* If our firmware supports this feature, convey that
2150 * information to the target using the vendor specific field.
2152 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
2153 sp->cmn.valid_vendor_ver_level = 1;
2154 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
2155 sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
2158 phba->fc_stat.elsXmitPLOGI++;
2159 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
2161 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2162 "Issue PLOGI: did:x%x refcnt %d",
2163 did, kref_read(&ndlp->kref), 0);
2164 elsiocb->context1 = lpfc_nlp_get(ndlp);
2165 if (!elsiocb->context1)
2168 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2176 lpfc_els_free_iocb(phba, elsiocb);
2181 * lpfc_cmpl_els_prli - Completion callback function for prli
2182 * @phba: pointer to lpfc hba data structure.
2183 * @cmdiocb: pointer to lpfc command iocb data structure.
2184 * @rspiocb: pointer to lpfc response iocb data structure.
2186 * This routine is the completion callback function for a Process Login
2187 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2188 * status. If there is error status reported, PRLI retry shall be attempted
2189 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2190 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2191 * ndlp to mark the PRLI completion.
2194 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2195 struct lpfc_iocbq *rspiocb)
2197 struct lpfc_vport *vport = cmdiocb->vport;
2199 struct lpfc_nodelist *ndlp;
2203 /* we pass cmdiocb to state machine which needs rspiocb as well */
2204 cmdiocb->context_un.rsp_iocb = rspiocb;
2206 irsp = &(rspiocb->iocb);
2207 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2208 spin_lock_irq(&ndlp->lock);
2209 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2211 /* Driver supports multiple FC4 types. Counters matter. */
2212 vport->fc_prli_sent--;
2213 ndlp->fc4_prli_sent--;
2214 spin_unlock_irq(&ndlp->lock);
2216 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2217 "PRLI cmpl: status:x%x/x%x did:x%x",
2218 irsp->ulpStatus, irsp->un.ulpWord[4],
2221 /* PRLI completes to NPort <nlp_DID> */
2222 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2223 "0103 PRLI completes to NPort x%06x "
2224 "Data: x%x x%x x%x x%x\n",
2225 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2226 vport->num_disc_nodes, ndlp->fc4_prli_sent);
2228 /* Check to see if link went down during discovery */
2229 if (lpfc_els_chk_latt(vport))
2232 if (irsp->ulpStatus) {
2233 /* Check for retry */
2234 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2235 /* ELS command is being retried */
2239 /* If we don't send GFT_ID to Fabric, a PRLI error
2240 * could be expected.
2242 if ((vport->fc_flag & FC_FABRIC) ||
2243 (vport->cfg_enable_fc4_type != LPFC_ENABLE_BOTH)) {
2245 loglevel = LOG_TRACE_EVENT;
2252 lpfc_printf_vlog(vport, mode, loglevel,
2253 "2754 PRLI failure DID:%06X Status:x%x/x%x, "
2255 ndlp->nlp_DID, irsp->ulpStatus,
2256 irsp->un.ulpWord[4], ndlp->fc4_prli_sent);
2258 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2259 if (lpfc_error_lost_link(irsp))
2262 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2265 /* As long as this node is not registered with the SCSI
2266 * or NVMe transport and no other PRLIs are outstanding,
2267 * it is no longer an active node. Otherwise devloss
2268 * handles the final cleanup.
2270 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) &&
2271 !ndlp->fc4_prli_sent) {
2272 spin_lock_irq(&ndlp->lock);
2273 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2274 spin_unlock_irq(&ndlp->lock);
2275 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2279 /* Good status, call state machine. However, if another
2280 * PRLI is outstanding, don't call the state machine
2281 * because final disposition to Mapped or Unmapped is
2284 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2289 lpfc_els_free_iocb(phba, cmdiocb);
2295 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2296 * @vport: pointer to a host virtual N_Port data structure.
2297 * @ndlp: pointer to a node-list data structure.
2298 * @retry: number of retries to the command IOCB.
2300 * This routine issues a Process Login (PRLI) ELS command for the
2301 * @vport. The PRLI service parameters are set up in the payload of the
2302 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2303 * is put to the IOCB completion callback func field before invoking the
2304 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2306 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2307 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2308 * will be stored into the context1 field of the IOCB for the completion
2309 * callback function to the PRLI ELS command.
2312 * 0 - successfully issued prli iocb command for @vport
2313 * 1 - failed to issue prli iocb command for @vport
2316 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2320 struct lpfc_hba *phba = vport->phba;
2322 struct lpfc_nvme_prli *npr_nvme;
2323 struct lpfc_iocbq *elsiocb;
2326 u32 local_nlp_type, elscmd;
2329 * If we are in RSCN mode, the FC4 types supported from a
2330 * previous GFT_ID command may not be accurate. So, if we
2331 * are a NVME Initiator, always look for the possibility of
2332 * the remote NPort beng a NVME Target.
2334 if (phba->sli_rev == LPFC_SLI_REV4 &&
2335 vport->fc_flag & FC_RSCN_MODE &&
2336 vport->nvmei_support)
2337 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
2338 local_nlp_type = ndlp->nlp_fc4_type;
2340 /* This routine will issue 1 or 2 PRLIs, so zero all the ndlp
2341 * fields here before any of them can complete.
2343 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
2344 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
2345 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
2346 ndlp->nlp_flag &= ~(NLP_FIRSTBURST | NLP_NPR_2B_DISC);
2347 ndlp->nvme_fb_size = 0;
2350 if (local_nlp_type & NLP_FC4_FCP) {
2351 /* Payload is 4 + 16 = 20 x14 bytes. */
2352 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2353 elscmd = ELS_CMD_PRLI;
2354 } else if (local_nlp_type & NLP_FC4_NVME) {
2355 /* Payload is 4 + 20 = 24 x18 bytes. */
2356 cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli));
2357 elscmd = ELS_CMD_NVMEPRLI;
2359 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2360 "3083 Unknown FC_TYPE x%x ndlp x%06x\n",
2361 ndlp->nlp_fc4_type, ndlp->nlp_DID);
2365 /* SLI3 ports don't support NVME. If this rport is a strict NVME
2366 * FC4 type, implicitly LOGO.
2368 if (phba->sli_rev == LPFC_SLI_REV3 &&
2369 ndlp->nlp_fc4_type == NLP_FC4_NVME) {
2370 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2371 "3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n",
2373 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
2377 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2378 ndlp->nlp_DID, elscmd);
2382 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2384 /* For PRLI request, remainder of payload is service parameters */
2385 memset(pcmd, 0, cmdsize);
2387 if (local_nlp_type & NLP_FC4_FCP) {
2388 /* Remainder of payload is FCP PRLI parameter page.
2389 * Note: this data structure is defined as
2390 * BE/LE in the structure definition so no
2391 * byte swap call is made.
2393 *((uint32_t *)(pcmd)) = ELS_CMD_PRLI;
2394 pcmd += sizeof(uint32_t);
2398 * If our firmware version is 3.20 or later,
2399 * set the following bits for FC-TAPE support.
2401 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2402 npr->ConfmComplAllowed = 1;
2404 npr->TaskRetryIdReq = 1;
2406 npr->estabImagePair = 1;
2407 npr->readXferRdyDis = 1;
2408 if (vport->cfg_first_burst_size)
2409 npr->writeXferRdyDis = 1;
2411 /* For FCP support */
2412 npr->prliType = PRLI_FCP_TYPE;
2413 npr->initiatorFunc = 1;
2414 elsiocb->iocb_flag |= LPFC_PRLI_FCP_REQ;
2416 /* Remove FCP type - processed. */
2417 local_nlp_type &= ~NLP_FC4_FCP;
2418 } else if (local_nlp_type & NLP_FC4_NVME) {
2419 /* Remainder of payload is NVME PRLI parameter page.
2420 * This data structure is the newer definition that
2421 * uses bf macros so a byte swap is required.
2423 *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI;
2424 pcmd += sizeof(uint32_t);
2425 npr_nvme = (struct lpfc_nvme_prli *)pcmd;
2426 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
2427 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
2429 bf_set(prli_nsler, npr_nvme, 1);
2430 bf_set(prli_conf, npr_nvme, 1);
2433 /* Only initiators request first burst. */
2434 if ((phba->cfg_nvme_enable_fb) &&
2435 !phba->nvmet_support)
2436 bf_set(prli_fba, npr_nvme, 1);
2438 if (phba->nvmet_support) {
2439 bf_set(prli_tgt, npr_nvme, 1);
2440 bf_set(prli_disc, npr_nvme, 1);
2442 bf_set(prli_init, npr_nvme, 1);
2443 bf_set(prli_conf, npr_nvme, 1);
2446 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
2447 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
2448 elsiocb->iocb_flag |= LPFC_PRLI_NVME_REQ;
2450 /* Remove NVME type - processed. */
2451 local_nlp_type &= ~NLP_FC4_NVME;
2454 phba->fc_stat.elsXmitPRLI++;
2455 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
2456 spin_lock_irq(&ndlp->lock);
2457 ndlp->nlp_flag |= NLP_PRLI_SND;
2459 /* The vport counters are used for lpfc_scan_finished, but
2460 * the ndlp is used to track outstanding PRLIs for different
2463 vport->fc_prli_sent++;
2464 ndlp->fc4_prli_sent++;
2465 spin_unlock_irq(&ndlp->lock);
2467 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2468 "Issue PRLI: did:x%x refcnt %d",
2469 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
2470 elsiocb->context1 = lpfc_nlp_get(ndlp);
2471 if (!elsiocb->context1)
2474 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2475 if (rc == IOCB_ERROR)
2479 /* The driver supports 2 FC4 types. Make sure
2480 * a PRLI is issued for all types before exiting.
2482 if (phba->sli_rev == LPFC_SLI_REV4 &&
2483 local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME))
2484 goto send_next_prli;
2491 spin_lock_irq(&ndlp->lock);
2492 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2493 spin_unlock_irq(&ndlp->lock);
2494 lpfc_els_free_iocb(phba, elsiocb);
2499 * lpfc_rscn_disc - Perform rscn discovery for a vport
2500 * @vport: pointer to a host virtual N_Port data structure.
2502 * This routine performs Registration State Change Notification (RSCN)
2503 * discovery for a @vport. If the @vport's node port recovery count is not
2504 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2505 * the nodes that need recovery. If none of the PLOGI were needed through
2506 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2507 * invoked to check and handle possible more RSCN came in during the period
2508 * of processing the current ones.
2511 lpfc_rscn_disc(struct lpfc_vport *vport)
2513 lpfc_can_disctmo(vport);
2515 /* RSCN discovery */
2516 /* go thru NPR nodes and issue ELS PLOGIs */
2517 if (vport->fc_npr_cnt)
2518 if (lpfc_els_disc_plogi(vport))
2521 lpfc_end_rscn(vport);
2525 * lpfc_adisc_done - Complete the adisc phase of discovery
2526 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2528 * This function is called when the final ADISC is completed during discovery.
2529 * This function handles clearing link attention or issuing reg_vpi depending
2530 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2532 * This function is called with no locks held.
2535 lpfc_adisc_done(struct lpfc_vport *vport)
2537 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2538 struct lpfc_hba *phba = vport->phba;
2541 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2542 * and continue discovery.
2544 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2545 !(vport->fc_flag & FC_RSCN_MODE) &&
2546 (phba->sli_rev < LPFC_SLI_REV4)) {
2547 /* The ADISCs are complete. Doesn't matter if they
2548 * succeeded or failed because the ADISC completion
2549 * routine guarantees to call the state machine and
2550 * the RPI is either unregistered (failed ADISC response)
2551 * or the RPI is still valid and the node is marked
2552 * mapped for a target. The exchanges should be in the
2553 * correct state. This code is specific to SLI3.
2555 lpfc_issue_clear_la(phba, vport);
2556 lpfc_issue_reg_vpi(phba, vport);
2560 * For SLI2, we need to set port_state to READY
2561 * and continue discovery.
2563 if (vport->port_state < LPFC_VPORT_READY) {
2564 /* If we get here, there is nothing to ADISC */
2565 lpfc_issue_clear_la(phba, vport);
2566 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2567 vport->num_disc_nodes = 0;
2568 /* go thru NPR list, issue ELS PLOGIs */
2569 if (vport->fc_npr_cnt)
2570 lpfc_els_disc_plogi(vport);
2571 if (!vport->num_disc_nodes) {
2572 spin_lock_irq(shost->host_lock);
2573 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2574 spin_unlock_irq(shost->host_lock);
2575 lpfc_can_disctmo(vport);
2576 lpfc_end_rscn(vport);
2579 vport->port_state = LPFC_VPORT_READY;
2581 lpfc_rscn_disc(vport);
2585 * lpfc_more_adisc - Issue more adisc as needed
2586 * @vport: pointer to a host virtual N_Port data structure.
2588 * This routine determines whether there are more ndlps on a @vport
2589 * node list need to have Address Discover (ADISC) issued. If so, it will
2590 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2591 * remaining nodes which need to have ADISC sent.
2594 lpfc_more_adisc(struct lpfc_vport *vport)
2596 if (vport->num_disc_nodes)
2597 vport->num_disc_nodes--;
2598 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2599 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2600 "0210 Continue discovery with %d ADISCs to go "
2601 "Data: x%x x%x x%x\n",
2602 vport->num_disc_nodes, vport->fc_adisc_cnt,
2603 vport->fc_flag, vport->port_state);
2604 /* Check to see if there are more ADISCs to be sent */
2605 if (vport->fc_flag & FC_NLP_MORE) {
2606 lpfc_set_disctmo(vport);
2607 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2608 lpfc_els_disc_adisc(vport);
2610 if (!vport->num_disc_nodes)
2611 lpfc_adisc_done(vport);
2616 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2617 * @phba: pointer to lpfc hba data structure.
2618 * @cmdiocb: pointer to lpfc command iocb data structure.
2619 * @rspiocb: pointer to lpfc response iocb data structure.
2621 * This routine is the completion function for issuing the Address Discover
2622 * (ADISC) command. It first checks to see whether link went down during
2623 * the discovery process. If so, the node will be marked as node port
2624 * recovery for issuing discover IOCB by the link attention handler and
2625 * exit. Otherwise, the response status is checked. If error was reported
2626 * in the response status, the ADISC command shall be retried by invoking
2627 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2628 * the response status, the state machine is invoked to set transition
2629 * with respect to NLP_EVT_CMPL_ADISC event.
2632 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2633 struct lpfc_iocbq *rspiocb)
2635 struct lpfc_vport *vport = cmdiocb->vport;
2637 struct lpfc_nodelist *ndlp;
2640 /* we pass cmdiocb to state machine which needs rspiocb as well */
2641 cmdiocb->context_un.rsp_iocb = rspiocb;
2643 irsp = &(rspiocb->iocb);
2644 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2646 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2647 "ADISC cmpl: status:x%x/x%x did:x%x",
2648 irsp->ulpStatus, irsp->un.ulpWord[4],
2651 /* Since ndlp can be freed in the disc state machine, note if this node
2652 * is being used during discovery.
2654 spin_lock_irq(&ndlp->lock);
2655 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2656 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2657 spin_unlock_irq(&ndlp->lock);
2658 /* ADISC completes to NPort <nlp_DID> */
2659 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2660 "0104 ADISC completes to NPort x%x "
2661 "Data: x%x x%x x%x x%x x%x\n",
2662 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2663 irsp->ulpTimeout, disc, vport->num_disc_nodes);
2664 /* Check to see if link went down during discovery */
2665 if (lpfc_els_chk_latt(vport)) {
2666 spin_lock_irq(&ndlp->lock);
2667 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2668 spin_unlock_irq(&ndlp->lock);
2672 if (irsp->ulpStatus) {
2673 /* Check for retry */
2674 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2675 /* ELS command is being retried */
2677 spin_lock_irq(&ndlp->lock);
2678 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2679 spin_unlock_irq(&ndlp->lock);
2680 lpfc_set_disctmo(vport);
2685 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
2686 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2687 ndlp->nlp_DID, irsp->ulpStatus,
2688 irsp->un.ulpWord[4]);
2689 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2690 if (lpfc_error_lost_link(irsp))
2693 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2694 NLP_EVT_CMPL_ADISC);
2696 /* As long as this node is not registered with the SCSI or NVMe
2697 * transport, it is no longer an active node. Otherwise
2698 * devloss handles the final cleanup.
2700 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
2701 spin_lock_irq(&ndlp->lock);
2702 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2703 spin_unlock_irq(&ndlp->lock);
2704 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2708 /* Good status, call state machine */
2709 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2710 NLP_EVT_CMPL_ADISC);
2713 /* Check to see if there are more ADISCs to be sent */
2714 if (disc && vport->num_disc_nodes)
2715 lpfc_more_adisc(vport);
2717 lpfc_els_free_iocb(phba, cmdiocb);
2723 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2724 * @vport: pointer to a virtual N_Port data structure.
2725 * @ndlp: pointer to a node-list data structure.
2726 * @retry: number of retries to the command IOCB.
2728 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2729 * @vport. It prepares the payload of the ADISC ELS command, updates the
2730 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2731 * to issue the ADISC ELS command.
2733 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2734 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2735 * will be stored into the context1 field of the IOCB for the completion
2736 * callback function to the ADISC ELS command.
2739 * 0 - successfully issued adisc
2740 * 1 - failed to issue adisc
2743 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2747 struct lpfc_hba *phba = vport->phba;
2749 struct lpfc_iocbq *elsiocb;
2753 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2754 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2755 ndlp->nlp_DID, ELS_CMD_ADISC);
2759 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2761 /* For ADISC request, remainder of payload is service parameters */
2762 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
2763 pcmd += sizeof(uint32_t);
2765 /* Fill in ADISC payload */
2766 ap = (ADISC *) pcmd;
2767 ap->hardAL_PA = phba->fc_pref_ALPA;
2768 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2769 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2770 ap->DID = be32_to_cpu(vport->fc_myDID);
2772 phba->fc_stat.elsXmitADISC++;
2773 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
2774 spin_lock_irq(&ndlp->lock);
2775 ndlp->nlp_flag |= NLP_ADISC_SND;
2776 spin_unlock_irq(&ndlp->lock);
2777 elsiocb->context1 = lpfc_nlp_get(ndlp);
2778 if (!elsiocb->context1)
2781 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2782 "Issue ADISC: did:x%x refcnt %d",
2783 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
2784 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2785 if (rc == IOCB_ERROR)
2792 spin_lock_irq(&ndlp->lock);
2793 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2794 spin_unlock_irq(&ndlp->lock);
2795 lpfc_els_free_iocb(phba, elsiocb);
2800 * lpfc_cmpl_els_logo - Completion callback function for logo
2801 * @phba: pointer to lpfc hba data structure.
2802 * @cmdiocb: pointer to lpfc command iocb data structure.
2803 * @rspiocb: pointer to lpfc response iocb data structure.
2805 * This routine is the completion function for issuing the ELS Logout (LOGO)
2806 * command. If no error status was reported from the LOGO response, the
2807 * state machine of the associated ndlp shall be invoked for transition with
2808 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2809 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2812 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2813 struct lpfc_iocbq *rspiocb)
2815 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2816 struct lpfc_vport *vport = ndlp->vport;
2818 struct lpfcMboxq *mbox;
2819 unsigned long flags;
2820 uint32_t skip_recovery = 0;
2822 /* we pass cmdiocb to state machine which needs rspiocb as well */
2823 cmdiocb->context_un.rsp_iocb = rspiocb;
2825 irsp = &(rspiocb->iocb);
2826 spin_lock_irq(&ndlp->lock);
2827 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2828 spin_unlock_irq(&ndlp->lock);
2830 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2831 "LOGO cmpl: status:x%x/x%x did:x%x",
2832 irsp->ulpStatus, irsp->un.ulpWord[4],
2835 /* LOGO completes to NPort <nlp_DID> */
2836 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2837 "0105 LOGO completes to NPort x%x "
2838 "Data: x%x x%x x%x x%x\n",
2839 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2840 irsp->ulpTimeout, vport->num_disc_nodes);
2842 if (lpfc_els_chk_latt(vport)) {
2847 /* Check to see if link went down during discovery */
2848 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
2849 /* NLP_EVT_DEVICE_RM should unregister the RPI
2850 * which should abort all outstanding IOs.
2852 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2858 /* The LOGO will not be retried on failure. A LOGO was
2859 * issued to the remote rport and a ACC or RJT or no Answer are
2860 * all acceptable. Note the failure and move forward with
2861 * discovery. The PLOGI will retry.
2863 if (irsp->ulpStatus) {
2865 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
2866 "2756 LOGO failure, No Retry DID:%06X Status:x%x/x%x\n",
2867 ndlp->nlp_DID, irsp->ulpStatus,
2868 irsp->un.ulpWord[4]);
2869 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2870 if (lpfc_error_lost_link(irsp)) {
2876 /* Call state machine. This will unregister the rpi if needed. */
2877 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
2880 /* Driver is done with the IO. */
2881 lpfc_els_free_iocb(phba, cmdiocb);
2884 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2885 if ((vport->fc_flag & FC_PT2PT) &&
2886 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
2887 phba->pport->fc_myDID = 0;
2889 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
2890 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
2891 if (phba->nvmet_support)
2892 lpfc_nvmet_update_targetport(phba);
2894 lpfc_nvme_update_localport(phba->pport);
2897 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2899 lpfc_config_link(phba, mbox);
2900 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2901 mbox->vport = vport;
2902 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
2904 mempool_free(mbox, phba->mbox_mem_pool);
2911 * If the node is a target, the handling attempts to recover the port.
2912 * For any other port type, the rpi is unregistered as an implicit
2915 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) &&
2916 skip_recovery == 0) {
2917 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2918 spin_lock_irqsave(&ndlp->lock, flags);
2919 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2920 spin_unlock_irqrestore(&ndlp->lock, flags);
2922 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2923 "3187 LOGO completes to NPort x%x: Start "
2924 "Recovery Data: x%x x%x x%x x%x\n",
2925 ndlp->nlp_DID, irsp->ulpStatus,
2926 irsp->un.ulpWord[4], irsp->ulpTimeout,
2927 vport->num_disc_nodes);
2928 lpfc_disc_start(vport);
2932 /* Cleanup path for failed REG_RPI handling. If REG_RPI fails, the
2933 * driver sends a LOGO to the rport to cleanup. For fabric and
2934 * initiator ports cleanup the node as long as it the node is not
2935 * register with the transport.
2937 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
2938 spin_lock_irq(&ndlp->lock);
2939 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2940 spin_unlock_irq(&ndlp->lock);
2941 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2947 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2948 * @vport: pointer to a virtual N_Port data structure.
2949 * @ndlp: pointer to a node-list data structure.
2950 * @retry: number of retries to the command IOCB.
2952 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2953 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2954 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2955 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2957 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2958 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2959 * will be stored into the context1 field of the IOCB for the completion
2960 * callback function to the LOGO ELS command.
2962 * Callers of this routine are expected to unregister the RPI first
2965 * 0 - successfully issued logo
2966 * 1 - failed to issue logo
2969 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2972 struct lpfc_hba *phba = vport->phba;
2973 struct lpfc_iocbq *elsiocb;
2978 spin_lock_irq(&ndlp->lock);
2979 if (ndlp->nlp_flag & NLP_LOGO_SND) {
2980 spin_unlock_irq(&ndlp->lock);
2983 spin_unlock_irq(&ndlp->lock);
2985 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
2986 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2987 ndlp->nlp_DID, ELS_CMD_LOGO);
2991 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2992 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
2993 pcmd += sizeof(uint32_t);
2995 /* Fill in LOGO payload */
2996 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
2997 pcmd += sizeof(uint32_t);
2998 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
3000 phba->fc_stat.elsXmitLOGO++;
3001 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
3002 spin_lock_irq(&ndlp->lock);
3003 ndlp->nlp_flag |= NLP_LOGO_SND;
3004 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
3005 spin_unlock_irq(&ndlp->lock);
3006 elsiocb->context1 = lpfc_nlp_get(ndlp);
3007 if (!elsiocb->context1)
3010 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3011 "Issue LOGO: did:x%x refcnt %d",
3012 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
3013 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3014 if (rc == IOCB_ERROR)
3017 spin_lock_irq(&ndlp->lock);
3018 ndlp->nlp_prev_state = ndlp->nlp_state;
3019 spin_unlock_irq(&ndlp->lock);
3020 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3026 spin_lock_irq(&ndlp->lock);
3027 ndlp->nlp_flag &= ~NLP_LOGO_SND;
3028 spin_unlock_irq(&ndlp->lock);
3029 lpfc_els_free_iocb(phba, elsiocb);
3034 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
3035 * @phba: pointer to lpfc hba data structure.
3036 * @cmdiocb: pointer to lpfc command iocb data structure.
3037 * @rspiocb: pointer to lpfc response iocb data structure.
3039 * This routine is a generic completion callback function for ELS commands.
3040 * Specifically, it is the callback function which does not need to perform
3041 * any command specific operations. It is currently used by the ELS command
3042 * issuing routines for RSCN, lpfc_issue_els_rscn, and the ELS Fibre Channel
3043 * Address Resolution Protocol Response (FARPR) routine, lpfc_issue_els_farpr().
3044 * Other than certain debug loggings, this callback function simply invokes the
3045 * lpfc_els_chk_latt() routine to check whether link went down during the
3046 * discovery process.
3049 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3050 struct lpfc_iocbq *rspiocb)
3052 struct lpfc_vport *vport = cmdiocb->vport;
3053 struct lpfc_nodelist *free_ndlp;
3056 irsp = &rspiocb->iocb;
3058 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3059 "ELS cmd cmpl: status:x%x/x%x did:x%x",
3060 irsp->ulpStatus, irsp->un.ulpWord[4],
3061 irsp->un.elsreq64.remoteID);
3063 /* ELS cmd tag <ulpIoTag> completes */
3064 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3065 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
3066 irsp->ulpIoTag, irsp->ulpStatus,
3067 irsp->un.ulpWord[4], irsp->ulpTimeout);
3069 /* Check to see if link went down during discovery */
3070 lpfc_els_chk_latt(vport);
3072 free_ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
3074 lpfc_els_free_iocb(phba, cmdiocb);
3075 lpfc_nlp_put(free_ndlp);
3079 * lpfc_cmpl_els_disc_cmd - Completion callback function for Discovery ELS cmd
3080 * @phba: pointer to lpfc hba data structure.
3081 * @cmdiocb: pointer to lpfc command iocb data structure.
3082 * @rspiocb: pointer to lpfc response iocb data structure.
3084 * This routine is a generic completion callback function for Discovery ELS cmd.
3085 * Currently used by the ELS command issuing routines for the ELS State Change
3086 * Request (SCR), lpfc_issue_els_scr() and the ELS RDF, lpfc_issue_els_rdf().
3087 * These commands will be retried once only for ELS timeout errors.
3090 lpfc_cmpl_els_disc_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3091 struct lpfc_iocbq *rspiocb)
3093 struct lpfc_vport *vport = cmdiocb->vport;
3095 struct lpfc_els_rdf_rsp *prdf;
3096 struct lpfc_dmabuf *pcmd, *prsp;
3099 struct lpfc_nodelist *ndlp = cmdiocb->context1;
3101 irsp = &rspiocb->iocb;
3103 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3104 "ELS cmd cmpl: status:x%x/x%x did:x%x",
3105 irsp->ulpStatus, irsp->un.ulpWord[4],
3106 irsp->un.elsreq64.remoteID);
3107 /* ELS cmd tag <ulpIoTag> completes */
3108 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3109 "0217 ELS cmd tag x%x completes Data: x%x x%x x%x "
3111 irsp->ulpIoTag, irsp->ulpStatus,
3112 irsp->un.ulpWord[4], irsp->ulpTimeout,
3115 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
3119 pdata = (u32 *)pcmd->virt;
3124 /* Only 1 retry for ELS Timeout only */
3125 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
3126 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3127 IOERR_SEQUENCE_TIMEOUT)) {
3129 if (cmdiocb->retry <= 1) {
3132 lpfc_issue_els_scr(vport, cmdiocb->retry);
3135 cmdiocb->context1 = NULL; /* save ndlp refcnt */
3136 lpfc_issue_els_rdf(vport, cmdiocb->retry);
3141 phba->fc_stat.elsRetryExceeded++;
3143 if (irsp->ulpStatus) {
3144 /* ELS discovery cmd completes with error */
3145 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
3146 "4203 ELS cmd x%x error: x%x x%X\n", cmd,
3147 irsp->ulpStatus, irsp->un.ulpWord[4]);
3151 /* The RDF response doesn't have any impact on the running driver
3152 * but the notification descriptors are dumped here for support.
3154 if (cmd == ELS_CMD_RDF) {
3157 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
3161 prdf = (struct lpfc_els_rdf_rsp *)prsp->virt;
3165 for (i = 0; i < ELS_RDF_REG_TAG_CNT &&
3166 i < be32_to_cpu(prdf->reg_d1.reg_desc.count); i++)
3167 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3168 "4677 Fabric RDF Notification Grant Data: "
3171 prdf->reg_d1.desc_tags[i]));
3175 /* Check to see if link went down during discovery */
3176 lpfc_els_chk_latt(vport);
3177 lpfc_els_free_iocb(phba, cmdiocb);
3183 * lpfc_issue_els_scr - Issue a scr to an node on a vport
3184 * @vport: pointer to a host virtual N_Port data structure.
3185 * @retry: retry counter for the command IOCB.
3187 * This routine issues a State Change Request (SCR) to a fabric node
3188 * on a @vport. The remote node is Fabric Controller (0xfffffd). It
3189 * first search the @vport node list to find the matching ndlp. If no such
3190 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
3191 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
3192 * routine is invoked to send the SCR IOCB.
3194 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3195 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3196 * will be stored into the context1 field of the IOCB for the completion
3197 * callback function to the SCR ELS command.
3200 * 0 - Successfully issued scr command
3201 * 1 - Failed to issue scr command
3204 lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry)
3207 struct lpfc_hba *phba = vport->phba;
3208 struct lpfc_iocbq *elsiocb;
3211 struct lpfc_nodelist *ndlp;
3213 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
3215 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID);
3217 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID);
3220 lpfc_enqueue_node(vport, ndlp);
3223 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3224 ndlp->nlp_DID, ELS_CMD_SCR);
3229 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3231 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
3232 pcmd += sizeof(uint32_t);
3234 /* For SCR, remainder of payload is SCR parameter page */
3235 memset(pcmd, 0, sizeof(SCR));
3236 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
3238 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3239 "Issue SCR: did:x%x",
3240 ndlp->nlp_DID, 0, 0);
3242 phba->fc_stat.elsXmitSCR++;
3243 elsiocb->iocb_cmpl = lpfc_cmpl_els_disc_cmd;
3244 elsiocb->context1 = lpfc_nlp_get(ndlp);
3245 if (!elsiocb->context1)
3248 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3249 "Issue SCR: did:x%x refcnt %d",
3250 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
3252 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3253 if (rc == IOCB_ERROR)
3256 /* Keep the ndlp just in case RDF is being sent */
3262 lpfc_els_free_iocb(phba, elsiocb);
3267 * lpfc_issue_els_rscn - Issue an RSCN to the Fabric Controller (Fabric)
3268 * or the other nport (pt2pt).
3269 * @vport: pointer to a host virtual N_Port data structure.
3270 * @retry: number of retries to the command IOCB.
3272 * This routine issues a RSCN to the Fabric Controller (DID 0xFFFFFD)
3273 * when connected to a fabric, or to the remote port when connected
3274 * in point-to-point mode. When sent to the Fabric Controller, it will
3275 * replay the RSCN to registered recipients.
3277 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3278 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3279 * will be stored into the context1 field of the IOCB for the completion
3280 * callback function to the RSCN ELS command.
3283 * 0 - Successfully issued RSCN command
3284 * 1 - Failed to issue RSCN command
3287 lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry)
3290 struct lpfc_hba *phba = vport->phba;
3291 struct lpfc_iocbq *elsiocb;
3292 struct lpfc_nodelist *ndlp;
3294 struct fc_els_rscn rscn;
3295 struct fc_els_rscn_page portid;
3298 uint16_t cmdsize = sizeof(*event);
3300 /* Not supported for private loop */
3301 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
3302 !(vport->fc_flag & FC_PUBLIC_LOOP))
3305 if (vport->fc_flag & FC_PT2PT) {
3306 /* find any mapped nport - that would be the other nport */
3307 ndlp = lpfc_findnode_mapped(vport);
3311 nportid = FC_FID_FCTRL;
3312 /* find the fabric controller node */
3313 ndlp = lpfc_findnode_did(vport, nportid);
3315 /* if one didn't exist, make one */
3316 ndlp = lpfc_nlp_init(vport, nportid);
3319 lpfc_enqueue_node(vport, ndlp);
3323 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3324 ndlp->nlp_DID, ELS_CMD_RSCN_XMT);
3329 event = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
3331 event->rscn.rscn_cmd = ELS_RSCN;
3332 event->rscn.rscn_page_len = sizeof(struct fc_els_rscn_page);
3333 event->rscn.rscn_plen = cpu_to_be16(cmdsize);
3335 nportid = vport->fc_myDID;
3336 /* appears that page flags must be 0 for fabric to broadcast RSCN */
3337 event->portid.rscn_page_flags = 0;
3338 event->portid.rscn_fid[0] = (nportid & 0x00FF0000) >> 16;
3339 event->portid.rscn_fid[1] = (nportid & 0x0000FF00) >> 8;
3340 event->portid.rscn_fid[2] = nportid & 0x000000FF;
3342 phba->fc_stat.elsXmitRSCN++;
3343 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
3344 elsiocb->context1 = lpfc_nlp_get(ndlp);
3345 if (!elsiocb->context1)
3348 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3349 "Issue RSCN: did:x%x",
3350 ndlp->nlp_DID, 0, 0);
3352 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3353 if (rc == IOCB_ERROR)
3356 /* This will cause the callback-function lpfc_cmpl_els_cmd to
3357 * trigger the release of node.
3359 if (!(vport->fc_flag & FC_PT2PT))
3365 lpfc_els_free_iocb(phba, elsiocb);
3370 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
3371 * @vport: pointer to a host virtual N_Port data structure.
3372 * @nportid: N_Port identifier to the remote node.
3373 * @retry: number of retries to the command IOCB.
3375 * This routine issues a Fibre Channel Address Resolution Response
3376 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
3377 * is passed into the function. It first search the @vport node list to find
3378 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
3379 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
3380 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
3382 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3383 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3384 * will be stored into the context1 field of the IOCB for the completion
3385 * callback function to the PARPR ELS command.
3388 * 0 - Successfully issued farpr command
3389 * 1 - Failed to issue farpr command
3392 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
3395 struct lpfc_hba *phba = vport->phba;
3396 struct lpfc_iocbq *elsiocb;
3401 struct lpfc_nodelist *ondlp;
3402 struct lpfc_nodelist *ndlp;
3404 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
3406 ndlp = lpfc_findnode_did(vport, nportid);
3408 ndlp = lpfc_nlp_init(vport, nportid);
3411 lpfc_enqueue_node(vport, ndlp);
3414 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3415 ndlp->nlp_DID, ELS_CMD_RNID);
3419 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3421 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
3422 pcmd += sizeof(uint32_t);
3424 /* Fill in FARPR payload */
3425 fp = (FARP *) (pcmd);
3426 memset(fp, 0, sizeof(FARP));
3427 lp = (uint32_t *) pcmd;
3428 *lp++ = be32_to_cpu(nportid);
3429 *lp++ = be32_to_cpu(vport->fc_myDID);
3431 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
3433 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
3434 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
3435 ondlp = lpfc_findnode_did(vport, nportid);
3437 memcpy(&fp->OportName, &ondlp->nlp_portname,
3438 sizeof(struct lpfc_name));
3439 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
3440 sizeof(struct lpfc_name));
3443 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3444 "Issue FARPR: did:x%x",
3445 ndlp->nlp_DID, 0, 0);
3447 phba->fc_stat.elsXmitFARPR++;
3448 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
3449 elsiocb->context1 = lpfc_nlp_get(ndlp);
3450 if (!elsiocb->context1) {
3451 lpfc_els_free_iocb(phba, elsiocb);
3455 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3456 if (rc == IOCB_ERROR) {
3457 /* The additional lpfc_nlp_put will cause the following
3458 * lpfc_els_free_iocb routine to trigger the release of
3462 lpfc_els_free_iocb(phba, elsiocb);
3465 /* This will cause the callback-function lpfc_cmpl_els_cmd to
3466 * trigger the release of the node.
3468 /* Don't release reference count as RDF is likely outstanding */
3473 * lpfc_issue_els_rdf - Register for diagnostic functions from the fabric.
3474 * @vport: pointer to a host virtual N_Port data structure.
3475 * @retry: retry counter for the command IOCB.
3477 * This routine issues an ELS RDF to the Fabric Controller to register
3478 * for diagnostic functions.
3480 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3481 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3482 * will be stored into the context1 field of the IOCB for the completion
3483 * callback function to the RDF ELS command.
3486 * 0 - Successfully issued rdf command
3487 * 1 - Failed to issue rdf command
3490 lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry)
3492 struct lpfc_hba *phba = vport->phba;
3493 struct lpfc_iocbq *elsiocb;
3494 struct lpfc_els_rdf_req *prdf;
3495 struct lpfc_nodelist *ndlp;
3499 cmdsize = sizeof(*prdf);
3501 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID);
3503 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID);
3506 lpfc_enqueue_node(vport, ndlp);
3509 /* RDF ELS is not required on an NPIV VN_Port. */
3510 if (vport->port_type == LPFC_NPIV_PORT) {
3515 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3516 ndlp->nlp_DID, ELS_CMD_RDF);
3520 /* Configure the payload for the supported FPIN events. */
3521 prdf = (struct lpfc_els_rdf_req *)
3522 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
3523 memset(prdf, 0, cmdsize);
3524 prdf->rdf.fpin_cmd = ELS_RDF;
3525 prdf->rdf.desc_len = cpu_to_be32(sizeof(struct lpfc_els_rdf_req) -
3526 sizeof(struct fc_els_rdf));
3527 prdf->reg_d1.reg_desc.desc_tag = cpu_to_be32(ELS_DTAG_FPIN_REGISTER);
3528 prdf->reg_d1.reg_desc.desc_len = cpu_to_be32(
3529 FC_TLV_DESC_LENGTH_FROM_SZ(prdf->reg_d1));
3530 prdf->reg_d1.reg_desc.count = cpu_to_be32(ELS_RDF_REG_TAG_CNT);
3531 prdf->reg_d1.desc_tags[0] = cpu_to_be32(ELS_DTAG_LNK_INTEGRITY);
3532 prdf->reg_d1.desc_tags[1] = cpu_to_be32(ELS_DTAG_DELIVERY);
3533 prdf->reg_d1.desc_tags[2] = cpu_to_be32(ELS_DTAG_PEER_CONGEST);
3534 prdf->reg_d1.desc_tags[3] = cpu_to_be32(ELS_DTAG_CONGESTION);
3536 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3537 "6444 Xmit RDF to remote NPORT x%x\n",
3540 elsiocb->iocb_cmpl = lpfc_cmpl_els_disc_cmd;
3541 elsiocb->context1 = lpfc_nlp_get(ndlp);
3542 if (!elsiocb->context1)
3545 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3546 "Issue RDF: did:x%x refcnt %d",
3547 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
3549 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3550 if (rc == IOCB_ERROR)
3557 lpfc_els_free_iocb(phba, elsiocb);
3562 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
3563 * @vport: pointer to a host virtual N_Port data structure.
3564 * @nlp: pointer to a node-list data structure.
3566 * This routine cancels the timer with a delayed IOCB-command retry for
3567 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
3568 * removes the ELS retry event if it presents. In addition, if the
3569 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
3570 * commands are sent for the @vport's nodes that require issuing discovery
3574 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
3576 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3577 struct lpfc_work_evt *evtp;
3579 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
3581 spin_lock_irq(&nlp->lock);
3582 nlp->nlp_flag &= ~NLP_DELAY_TMO;
3583 spin_unlock_irq(&nlp->lock);
3584 del_timer_sync(&nlp->nlp_delayfunc);
3585 nlp->nlp_last_elscmd = 0;
3586 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
3587 list_del_init(&nlp->els_retry_evt.evt_listp);
3588 /* Decrement nlp reference count held for the delayed retry */
3589 evtp = &nlp->els_retry_evt;
3590 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
3592 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
3593 spin_lock_irq(&nlp->lock);
3594 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
3595 spin_unlock_irq(&nlp->lock);
3596 if (vport->num_disc_nodes) {
3597 if (vport->port_state < LPFC_VPORT_READY) {
3598 /* Check if there are more ADISCs to be sent */
3599 lpfc_more_adisc(vport);
3601 /* Check if there are more PLOGIs to be sent */
3602 lpfc_more_plogi(vport);
3603 if (vport->num_disc_nodes == 0) {
3604 spin_lock_irq(shost->host_lock);
3605 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3606 spin_unlock_irq(shost->host_lock);
3607 lpfc_can_disctmo(vport);
3608 lpfc_end_rscn(vport);
3617 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
3618 * @t: pointer to the timer function associated data (ndlp).
3620 * This routine is invoked by the ndlp delayed-function timer to check
3621 * whether there is any pending ELS retry event(s) with the node. If not, it
3622 * simply returns. Otherwise, if there is at least one ELS delayed event, it
3623 * adds the delayed events to the HBA work list and invokes the
3624 * lpfc_worker_wake_up() routine to wake up worker thread to process the
3625 * event. Note that lpfc_nlp_get() is called before posting the event to
3626 * the work list to hold reference count of ndlp so that it guarantees the
3627 * reference to ndlp will still be available when the worker thread gets
3628 * to the event associated with the ndlp.
3631 lpfc_els_retry_delay(struct timer_list *t)
3633 struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc);
3634 struct lpfc_vport *vport = ndlp->vport;
3635 struct lpfc_hba *phba = vport->phba;
3636 unsigned long flags;
3637 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
3639 spin_lock_irqsave(&phba->hbalock, flags);
3640 if (!list_empty(&evtp->evt_listp)) {
3641 spin_unlock_irqrestore(&phba->hbalock, flags);
3645 /* We need to hold the node by incrementing the reference
3646 * count until the queued work is done
3648 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
3649 if (evtp->evt_arg1) {
3650 evtp->evt = LPFC_EVT_ELS_RETRY;
3651 list_add_tail(&evtp->evt_listp, &phba->work_list);
3652 lpfc_worker_wake_up(phba);
3654 spin_unlock_irqrestore(&phba->hbalock, flags);
3659 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
3660 * @ndlp: pointer to a node-list data structure.
3662 * This routine is the worker-thread handler for processing the @ndlp delayed
3663 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3664 * the last ELS command from the associated ndlp and invokes the proper ELS
3665 * function according to the delayed ELS command to retry the command.
3668 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
3670 struct lpfc_vport *vport = ndlp->vport;
3671 uint32_t cmd, retry;
3673 spin_lock_irq(&ndlp->lock);
3674 cmd = ndlp->nlp_last_elscmd;
3675 ndlp->nlp_last_elscmd = 0;
3677 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
3678 spin_unlock_irq(&ndlp->lock);
3682 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3683 spin_unlock_irq(&ndlp->lock);
3685 * If a discovery event readded nlp_delayfunc after timer
3686 * firing and before processing the timer, cancel the
3689 del_timer_sync(&ndlp->nlp_delayfunc);
3690 retry = ndlp->nlp_retry;
3691 ndlp->nlp_retry = 0;
3695 lpfc_issue_els_flogi(vport, ndlp, retry);
3698 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
3699 ndlp->nlp_prev_state = ndlp->nlp_state;
3700 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
3704 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
3705 ndlp->nlp_prev_state = ndlp->nlp_state;
3706 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3710 case ELS_CMD_NVMEPRLI:
3711 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
3712 ndlp->nlp_prev_state = ndlp->nlp_state;
3713 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3717 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
3718 ndlp->nlp_prev_state = ndlp->nlp_state;
3719 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3723 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
3724 lpfc_issue_els_fdisc(vport, ndlp, retry);
3731 * lpfc_link_reset - Issue link reset
3732 * @vport: pointer to a virtual N_Port data structure.
3734 * This routine performs link reset by sending INIT_LINK mailbox command.
3735 * For SLI-3 adapter, link attention interrupt is enabled before issuing
3736 * INIT_LINK mailbox command.
3739 * 0 - Link reset initiated successfully
3740 * 1 - Failed to initiate link reset
3743 lpfc_link_reset(struct lpfc_vport *vport)
3745 struct lpfc_hba *phba = vport->phba;
3750 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3751 "2851 Attempt link reset\n");
3752 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3754 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3755 "2852 Failed to allocate mbox memory");
3759 /* Enable Link attention interrupts */
3760 if (phba->sli_rev <= LPFC_SLI_REV3) {
3761 spin_lock_irq(&phba->hbalock);
3762 phba->sli.sli_flag |= LPFC_PROCESS_LA;
3763 control = readl(phba->HCregaddr);
3764 control |= HC_LAINT_ENA;
3765 writel(control, phba->HCregaddr);
3766 readl(phba->HCregaddr); /* flush */
3767 spin_unlock_irq(&phba->hbalock);
3770 lpfc_init_link(phba, mbox, phba->cfg_topology,
3771 phba->cfg_link_speed);
3772 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3773 mbox->vport = vport;
3774 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3775 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
3776 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3777 "2853 Failed to issue INIT_LINK "
3778 "mbox command, rc:x%x\n", rc);
3779 mempool_free(mbox, phba->mbox_mem_pool);
3787 * lpfc_els_retry - Make retry decision on an els command iocb
3788 * @phba: pointer to lpfc hba data structure.
3789 * @cmdiocb: pointer to lpfc command iocb data structure.
3790 * @rspiocb: pointer to lpfc response iocb data structure.
3792 * This routine makes a retry decision on an ELS command IOCB, which has
3793 * failed. The following ELS IOCBs use this function for retrying the command
3794 * when previously issued command responsed with error status: FLOGI, PLOGI,
3795 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3796 * returned error status, it makes the decision whether a retry shall be
3797 * issued for the command, and whether a retry shall be made immediately or
3798 * delayed. In the former case, the corresponding ELS command issuing-function
3799 * is called to retry the command. In the later case, the ELS command shall
3800 * be posted to the ndlp delayed event and delayed function timer set to the
3801 * ndlp for the delayed command issusing.
3804 * 0 - No retry of els command is made
3805 * 1 - Immediate or delayed retry of els command is made
3808 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3809 struct lpfc_iocbq *rspiocb)
3811 struct lpfc_vport *vport = cmdiocb->vport;
3812 IOCB_t *irsp = &rspiocb->iocb;
3813 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3814 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3817 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
3821 int link_reset = 0, rc;
3824 /* Note: context2 may be 0 for internal driver abort
3825 * of delays ELS command.
3828 if (pcmd && pcmd->virt) {
3829 elscmd = (uint32_t *) (pcmd->virt);
3834 did = ndlp->nlp_DID;
3836 /* We should only hit this case for retrying PLOGI */
3837 did = irsp->un.elsreq64.remoteID;
3838 ndlp = lpfc_findnode_did(vport, did);
3839 if (!ndlp && (cmd != ELS_CMD_PLOGI))
3843 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3844 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3845 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
3847 switch (irsp->ulpStatus) {
3848 case IOSTAT_FCP_RSP_ERROR:
3850 case IOSTAT_REMOTE_STOP:
3851 if (phba->sli_rev == LPFC_SLI_REV4) {
3852 /* This IO was aborted by the target, we don't
3853 * know the rxid and because we did not send the
3854 * ABTS we cannot generate and RRQ.
3856 lpfc_set_rrq_active(phba, ndlp,
3857 cmdiocb->sli4_lxritag, 0, 0);
3860 case IOSTAT_LOCAL_REJECT:
3861 switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
3862 case IOERR_LOOP_OPEN_FAILURE:
3863 if (cmd == ELS_CMD_FLOGI) {
3864 if (PCI_DEVICE_ID_HORNET ==
3865 phba->pcidev->device) {
3866 phba->fc_topology = LPFC_TOPOLOGY_LOOP;
3867 phba->pport->fc_myDID = 0;
3868 phba->alpa_map[0] = 0;
3869 phba->alpa_map[1] = 0;
3872 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
3877 case IOERR_ILLEGAL_COMMAND:
3878 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3879 "0124 Retry illegal cmd x%x "
3880 "retry:x%x delay:x%x\n",
3881 cmd, cmdiocb->retry, delay);
3883 /* All command's retry policy */
3885 if (cmdiocb->retry > 2)
3889 case IOERR_NO_RESOURCES:
3890 logerr = 1; /* HBA out of resources */
3892 if (cmdiocb->retry > 100)
3897 case IOERR_ILLEGAL_FRAME:
3902 case IOERR_INVALID_RPI:
3903 if (cmd == ELS_CMD_PLOGI &&
3904 did == NameServer_DID) {
3905 /* Continue forever if plogi to */
3906 /* the nameserver fails */
3913 case IOERR_SEQUENCE_TIMEOUT:
3914 if (cmd == ELS_CMD_PLOGI &&
3915 did == NameServer_DID &&
3916 (cmdiocb->retry + 1) == maxretry) {
3917 /* Reset the Link */
3927 case IOSTAT_NPORT_RJT:
3928 case IOSTAT_FABRIC_RJT:
3929 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
3935 case IOSTAT_NPORT_BSY:
3936 case IOSTAT_FABRIC_BSY:
3937 logerr = 1; /* Fabric / Remote NPort out of resources */
3942 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
3943 /* Added for Vendor specifc support
3944 * Just keep retrying for these Rsn / Exp codes
3946 switch (stat.un.b.lsRjtRsnCode) {
3947 case LSRJT_UNABLE_TPC:
3948 /* The driver has a VALID PLOGI but the rport has
3949 * rejected the PRLI - can't do it now. Delay
3950 * for 1 second and try again.
3952 * However, if explanation is REQ_UNSUPPORTED there's
3953 * no point to retry PRLI.
3955 if ((cmd == ELS_CMD_PRLI || cmd == ELS_CMD_NVMEPRLI) &&
3956 stat.un.b.lsRjtRsnCodeExp !=
3957 LSEXP_REQ_UNSUPPORTED) {
3959 maxretry = lpfc_max_els_tries + 1;
3964 /* Legacy bug fix code for targets with PLOGI delays. */
3965 if (stat.un.b.lsRjtRsnCodeExp ==
3966 LSEXP_CMD_IN_PROGRESS) {
3967 if (cmd == ELS_CMD_PLOGI) {
3974 if (stat.un.b.lsRjtRsnCodeExp ==
3975 LSEXP_CANT_GIVE_DATA) {
3976 if (cmd == ELS_CMD_PLOGI) {
3983 if (cmd == ELS_CMD_PLOGI) {
3985 maxretry = lpfc_max_els_tries + 1;
3989 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3990 (cmd == ELS_CMD_FDISC) &&
3991 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
3992 lpfc_printf_vlog(vport, KERN_ERR,
3994 "0125 FDISC Failed (x%x). "
3995 "Fabric out of resources\n",
3996 stat.un.lsRjtError);
3997 lpfc_vport_set_state(vport,
3998 FC_VPORT_NO_FABRIC_RSCS);
4002 case LSRJT_LOGICAL_BSY:
4003 if ((cmd == ELS_CMD_PLOGI) ||
4004 (cmd == ELS_CMD_PRLI) ||
4005 (cmd == ELS_CMD_NVMEPRLI)) {
4008 } else if (cmd == ELS_CMD_FDISC) {
4009 /* FDISC retry policy */
4011 if (cmdiocb->retry >= 32)
4017 case LSRJT_LOGICAL_ERR:
4018 /* There are some cases where switches return this
4019 * error when they are not ready and should be returning
4020 * Logical Busy. We should delay every time.
4022 if (cmd == ELS_CMD_FDISC &&
4023 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
4027 } else if (cmd == ELS_CMD_FLOGI &&
4028 stat.un.b.lsRjtRsnCodeExp ==
4029 LSEXP_NOTHING_MORE) {
4030 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf;
4032 lpfc_printf_vlog(vport, KERN_ERR,
4034 "0820 FLOGI Failed (x%x). "
4035 "BBCredit Not Supported\n",
4036 stat.un.lsRjtError);
4040 case LSRJT_PROTOCOL_ERR:
4041 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
4042 (cmd == ELS_CMD_FDISC) &&
4043 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
4044 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
4046 lpfc_printf_vlog(vport, KERN_ERR,
4048 "0122 FDISC Failed (x%x). "
4049 "Fabric Detected Bad WWN\n",
4050 stat.un.lsRjtError);
4051 lpfc_vport_set_state(vport,
4052 FC_VPORT_FABRIC_REJ_WWN);
4055 case LSRJT_VENDOR_UNIQUE:
4056 if ((stat.un.b.vendorUnique == 0x45) &&
4057 (cmd == ELS_CMD_FLOGI)) {
4061 case LSRJT_CMD_UNSUPPORTED:
4062 /* lpfc nvmet returns this type of LS_RJT when it
4063 * receives an FCP PRLI because lpfc nvmet only
4064 * support NVME. ELS request is terminated for FCP4
4067 if (stat.un.b.lsRjtRsnCodeExp ==
4068 LSEXP_REQ_UNSUPPORTED && cmd == ELS_CMD_PRLI) {
4069 spin_lock_irq(&ndlp->lock);
4070 ndlp->nlp_flag |= NLP_FCP_PRLI_RJT;
4071 spin_unlock_irq(&ndlp->lock);
4079 case IOSTAT_INTERMED_RSP:
4088 rc = lpfc_link_reset(vport);
4090 /* Do not give up. Retry PLOGI one more time and attempt
4091 * link reset if PLOGI fails again.
4100 if (did == FDMI_DID)
4103 if ((cmd == ELS_CMD_FLOGI) &&
4104 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
4105 !lpfc_error_lost_link(irsp)) {
4106 /* FLOGI retry policy */
4108 /* retry FLOGI forever */
4109 if (phba->link_flag != LS_LOOPBACK_MODE)
4114 if (cmdiocb->retry >= 100)
4116 else if (cmdiocb->retry >= 32)
4118 } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
4119 /* retry FDISCs every second up to devloss */
4121 maxretry = vport->cfg_devloss_tmo;
4126 if (maxretry && (cmdiocb->retry >= maxretry)) {
4127 phba->fc_stat.elsRetryExceeded++;
4131 if ((vport->load_flag & FC_UNLOADING) != 0)
4136 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
4137 /* Stop retrying PLOGI and FDISC if in FCF discovery */
4138 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4139 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4140 "2849 Stop retry ELS command "
4141 "x%x to remote NPORT x%x, "
4142 "Data: x%x x%x\n", cmd, did,
4143 cmdiocb->retry, delay);
4148 /* Retry ELS command <elsCmd> to remote NPORT <did> */
4149 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4150 "0107 Retry ELS command x%x to remote "
4151 "NPORT x%x Data: x%x x%x\n",
4152 cmd, did, cmdiocb->retry, delay);
4154 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
4155 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
4156 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
4157 IOERR_NO_RESOURCES))) {
4158 /* Don't reset timer for no resources */
4160 /* If discovery / RSCN timer is running, reset it */
4161 if (timer_pending(&vport->fc_disctmo) ||
4162 (vport->fc_flag & FC_RSCN_MODE))
4163 lpfc_set_disctmo(vport);
4166 phba->fc_stat.elsXmitRetry++;
4167 if (ndlp && delay) {
4168 phba->fc_stat.elsDelayRetry++;
4169 ndlp->nlp_retry = cmdiocb->retry;
4171 /* delay is specified in milliseconds */
4172 mod_timer(&ndlp->nlp_delayfunc,
4173 jiffies + msecs_to_jiffies(delay));
4174 spin_lock_irq(&ndlp->lock);
4175 ndlp->nlp_flag |= NLP_DELAY_TMO;
4176 spin_unlock_irq(&ndlp->lock);
4178 ndlp->nlp_prev_state = ndlp->nlp_state;
4179 if ((cmd == ELS_CMD_PRLI) ||
4180 (cmd == ELS_CMD_NVMEPRLI))
4181 lpfc_nlp_set_state(vport, ndlp,
4182 NLP_STE_PRLI_ISSUE);
4184 lpfc_nlp_set_state(vport, ndlp,
4186 ndlp->nlp_last_elscmd = cmd;
4192 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
4195 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
4199 ndlp->nlp_prev_state = ndlp->nlp_state;
4200 lpfc_nlp_set_state(vport, ndlp,
4201 NLP_STE_PLOGI_ISSUE);
4203 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
4206 ndlp->nlp_prev_state = ndlp->nlp_state;
4207 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4208 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
4211 case ELS_CMD_NVMEPRLI:
4212 ndlp->nlp_prev_state = ndlp->nlp_state;
4213 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
4214 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
4217 ndlp->nlp_prev_state = ndlp->nlp_state;
4218 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
4219 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
4223 /* No retry ELS command <elsCmd> to remote NPORT <did> */
4225 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4226 "0137 No retry ELS command x%x to remote "
4227 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
4228 cmd, did, irsp->ulpStatus,
4229 irsp->un.ulpWord[4]);
4232 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4233 "0108 No retry ELS command x%x to remote "
4234 "NPORT x%x Retried:%d Error:x%x/%x\n",
4235 cmd, did, cmdiocb->retry, irsp->ulpStatus,
4236 irsp->un.ulpWord[4]);
4242 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
4243 * @phba: pointer to lpfc hba data structure.
4244 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
4246 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
4247 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
4248 * checks to see whether there is a lpfc DMA buffer associated with the
4249 * response of the command IOCB. If so, it will be released before releasing
4250 * the lpfc DMA buffer associated with the IOCB itself.
4253 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
4256 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
4258 struct lpfc_dmabuf *buf_ptr;
4260 /* Free the response before processing the command. */
4261 if (!list_empty(&buf_ptr1->list)) {
4262 list_remove_head(&buf_ptr1->list, buf_ptr,
4265 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
4268 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
4274 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
4275 * @phba: pointer to lpfc hba data structure.
4276 * @buf_ptr: pointer to the lpfc dma buffer data structure.
4278 * This routine releases the lpfc Direct Memory Access (DMA) buffer
4279 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
4283 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
4286 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
4288 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
4294 * lpfc_els_free_iocb - Free a command iocb and its associated resources
4295 * @phba: pointer to lpfc hba data structure.
4296 * @elsiocb: pointer to lpfc els command iocb data structure.
4298 * This routine frees a command IOCB and its associated resources. The
4299 * command IOCB data structure contains the reference to various associated
4300 * resources, these fields must be set to NULL if the associated reference
4302 * context1 - reference to ndlp
4303 * context2 - reference to cmd
4304 * context2->next - reference to rsp
4305 * context3 - reference to bpl
4307 * It first properly decrements the reference count held on ndlp for the
4308 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
4309 * set, it invokes the lpfc_els_free_data() routine to release the Direct
4310 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
4311 * adds the DMA buffer the @phba data structure for the delayed release.
4312 * If reference to the Buffer Pointer List (BPL) is present, the
4313 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
4314 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
4315 * invoked to release the IOCB data structure back to @phba IOCBQ list.
4318 * 0 - Success (currently, always return 0)
4321 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
4323 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
4325 /* The I/O job is complete. Clear the context1 data. */
4326 elsiocb->context1 = NULL;
4328 /* context2 = cmd, context2->next = rsp, context3 = bpl */
4329 if (elsiocb->context2) {
4330 if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
4331 /* Firmware could still be in progress of DMAing
4332 * payload, so don't free data buffer till after
4335 elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
4336 buf_ptr = elsiocb->context2;
4337 elsiocb->context2 = NULL;
4340 spin_lock_irq(&phba->hbalock);
4341 if (!list_empty(&buf_ptr->list)) {
4342 list_remove_head(&buf_ptr->list,
4343 buf_ptr1, struct lpfc_dmabuf,
4345 INIT_LIST_HEAD(&buf_ptr1->list);
4346 list_add_tail(&buf_ptr1->list,
4350 INIT_LIST_HEAD(&buf_ptr->list);
4351 list_add_tail(&buf_ptr->list, &phba->elsbuf);
4353 spin_unlock_irq(&phba->hbalock);
4356 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
4357 lpfc_els_free_data(phba, buf_ptr1);
4358 elsiocb->context2 = NULL;
4362 if (elsiocb->context3) {
4363 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
4364 lpfc_els_free_bpl(phba, buf_ptr);
4365 elsiocb->context3 = NULL;
4367 lpfc_sli_release_iocbq(phba, elsiocb);
4372 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
4373 * @phba: pointer to lpfc hba data structure.
4374 * @cmdiocb: pointer to lpfc command iocb data structure.
4375 * @rspiocb: pointer to lpfc response iocb data structure.
4377 * This routine is the completion callback function to the Logout (LOGO)
4378 * Accept (ACC) Response ELS command. This routine is invoked to indicate
4379 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
4380 * release the ndlp if it has the last reference remaining (reference count
4381 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
4382 * field to NULL to inform the following lpfc_els_free_iocb() routine no
4383 * ndlp reference count needs to be decremented. Otherwise, the ndlp
4384 * reference use-count shall be decremented by the lpfc_els_free_iocb()
4385 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
4386 * IOCB data structure.
4389 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4390 struct lpfc_iocbq *rspiocb)
4392 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
4393 struct lpfc_vport *vport = cmdiocb->vport;
4396 irsp = &rspiocb->iocb;
4397 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4398 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
4399 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
4400 /* ACC to LOGO completes to NPort <nlp_DID> */
4401 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4402 "0109 ACC to LOGO completes to NPort x%x "
4403 "Data: x%x x%x x%x\n",
4404 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4407 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
4408 /* NPort Recovery mode or node is just allocated */
4409 if (!lpfc_nlp_not_used(ndlp)) {
4410 /* If the ndlp is being used by another discovery
4411 * thread, just unregister the RPI.
4413 lpfc_unreg_rpi(vport, ndlp);
4415 /* Indicate the node has already released, should
4416 * not reference to it from within lpfc_els_free_iocb.
4418 cmdiocb->context1 = NULL;
4423 * The driver received a LOGO from the rport and has ACK'd it.
4424 * At this point, the driver is done so release the IOCB
4426 lpfc_els_free_iocb(phba, cmdiocb);
4431 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
4432 * @phba: pointer to lpfc hba data structure.
4433 * @pmb: pointer to the driver internal queue element for mailbox command.
4435 * This routine is the completion callback function for unregister default
4436 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
4437 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
4438 * decrements the ndlp reference count held for this completion callback
4439 * function. After that, it invokes the lpfc_nlp_not_used() to check
4440 * whether there is only one reference left on the ndlp. If so, it will
4441 * perform one more decrement and trigger the release of the ndlp.
4444 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4446 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4447 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4449 pmb->ctx_buf = NULL;
4450 pmb->ctx_ndlp = NULL;
4452 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4454 mempool_free(pmb, phba->mbox_mem_pool);
4456 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4457 "0006 rpi x%x DID:%x flg:%x %d x%px\n",
4458 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4459 kref_read(&ndlp->kref),
4461 /* This is the end of the default RPI cleanup logic for
4462 * this ndlp and it could get released. Clear the nlp_flags to
4463 * prevent any further processing.
4465 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
4467 lpfc_nlp_not_used(ndlp);
4474 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
4475 * @phba: pointer to lpfc hba data structure.
4476 * @cmdiocb: pointer to lpfc command iocb data structure.
4477 * @rspiocb: pointer to lpfc response iocb data structure.
4479 * This routine is the completion callback function for ELS Response IOCB
4480 * command. In normal case, this callback function just properly sets the
4481 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
4482 * field in the command IOCB is not NULL, the referred mailbox command will
4483 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
4484 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
4485 * link down event occurred during the discovery, the lpfc_nlp_not_used()
4486 * routine shall be invoked trying to release the ndlp if no other threads
4487 * are currently referring it.
4490 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4491 struct lpfc_iocbq *rspiocb)
4493 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
4494 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
4495 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
4498 LPFC_MBOXQ_t *mbox = NULL;
4499 struct lpfc_dmabuf *mp = NULL;
4500 uint32_t ls_rjt = 0;
4502 irsp = &rspiocb->iocb;
4505 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4506 "3177 ELS response failed\n");
4509 if (cmdiocb->context_un.mbox)
4510 mbox = cmdiocb->context_un.mbox;
4512 /* First determine if this is a LS_RJT cmpl. Note, this callback
4513 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
4515 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
4516 if (ndlp && (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
4517 /* A LS_RJT associated with Default RPI cleanup has its own
4518 * separate code path.
4520 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
4524 /* Check to see if link went down during discovery */
4525 if (!ndlp || lpfc_els_chk_latt(vport)) {
4527 mp = (struct lpfc_dmabuf *)mbox->ctx_buf;
4529 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4532 mempool_free(mbox, phba->mbox_mem_pool);
4534 if (ndlp && (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
4535 if (lpfc_nlp_not_used(ndlp)) {
4537 /* Indicate the node has already released,
4538 * should not reference to it from within
4539 * the routine lpfc_els_free_iocb.
4541 cmdiocb->context1 = NULL;
4546 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4547 "ELS rsp cmpl: status:x%x/x%x did:x%x",
4548 irsp->ulpStatus, irsp->un.ulpWord[4],
4549 cmdiocb->iocb.un.elsreq64.remoteID);
4550 /* ELS response tag <ulpIoTag> completes */
4551 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4552 "0110 ELS response tag x%x completes "
4553 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
4554 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
4555 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
4556 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4559 if ((rspiocb->iocb.ulpStatus == 0) &&
4560 (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
4561 if (!lpfc_unreg_rpi(vport, ndlp) &&
4562 (!(vport->fc_flag & FC_PT2PT))) {
4563 if (ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) {
4564 lpfc_printf_vlog(vport, KERN_INFO,
4568 "Data: x%x x%x x%x\n",
4575 lpfc_mbuf_free(phba, mp->virt,
4579 mempool_free(mbox, phba->mbox_mem_pool);
4584 /* Increment reference count to ndlp to hold the
4585 * reference to ndlp for the callback function.
4587 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
4588 if (!mbox->ctx_ndlp)
4591 mbox->vport = vport;
4592 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
4593 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4594 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4597 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
4598 ndlp->nlp_prev_state = ndlp->nlp_state;
4599 lpfc_nlp_set_state(vport, ndlp,
4600 NLP_STE_REG_LOGIN_ISSUE);
4603 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
4604 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
4605 != MBX_NOT_FINISHED)
4608 /* Decrement the ndlp reference count we
4609 * set for this failed mailbox command.
4612 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
4614 /* ELS rsp: Cannot issue reg_login for <NPortid> */
4615 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4616 "0138 ELS rsp: Cannot issue reg_login for x%x "
4617 "Data: x%x x%x x%x\n",
4618 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4621 if (lpfc_nlp_not_used(ndlp)) {
4623 /* Indicate node has already been released,
4624 * should not reference to it from within
4625 * the routine lpfc_els_free_iocb.
4627 cmdiocb->context1 = NULL;
4630 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
4631 if (!lpfc_error_lost_link(irsp) &&
4632 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
4633 if (lpfc_nlp_not_used(ndlp)) {
4635 /* Indicate node has already been
4636 * released, should not reference
4637 * to it from within the routine
4638 * lpfc_els_free_iocb.
4640 cmdiocb->context1 = NULL;
4644 mp = (struct lpfc_dmabuf *)mbox->ctx_buf;
4646 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4649 mempool_free(mbox, phba->mbox_mem_pool);
4652 if (ndlp && shost) {
4653 spin_lock_irq(&ndlp->lock);
4655 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
4656 ndlp->nlp_flag &= ~NLP_RM_DFLT_RPI;
4657 spin_unlock_irq(&ndlp->lock);
4659 /* If the node is not being used by another discovery thread,
4660 * and we are sending a reject, we are done with it.
4661 * Release driver reference count here and free associated
4665 if (lpfc_nlp_not_used(ndlp))
4666 /* Indicate node has already been released,
4667 * should not reference to it from within
4668 * the routine lpfc_els_free_iocb.
4670 cmdiocb->context1 = NULL;
4673 /* Release the originating I/O reference. */
4674 lpfc_els_free_iocb(phba, cmdiocb);
4680 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
4681 * @vport: pointer to a host virtual N_Port data structure.
4682 * @flag: the els command code to be accepted.
4683 * @oldiocb: pointer to the original lpfc command iocb data structure.
4684 * @ndlp: pointer to a node-list data structure.
4685 * @mbox: pointer to the driver internal queue element for mailbox command.
4687 * This routine prepares and issues an Accept (ACC) response IOCB
4688 * command. It uses the @flag to properly set up the IOCB field for the
4689 * specific ACC response command to be issued and invokes the
4690 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
4691 * @mbox pointer is passed in, it will be put into the context_un.mbox
4692 * field of the IOCB for the completion callback function to issue the
4693 * mailbox command to the HBA later when callback is invoked.
4695 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4696 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4697 * will be stored into the context1 field of the IOCB for the completion
4698 * callback function to the corresponding response ELS IOCB command.
4701 * 0 - Successfully issued acc response
4702 * 1 - Failed to issue acc response
4705 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
4706 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4709 struct lpfc_hba *phba = vport->phba;
4712 struct lpfc_iocbq *elsiocb;
4714 struct serv_parm *sp;
4717 ELS_PKT *els_pkt_ptr;
4719 oldcmd = &oldiocb->iocb;
4723 cmdsize = sizeof(uint32_t);
4724 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4725 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
4727 spin_lock_irq(&ndlp->lock);
4728 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4729 spin_unlock_irq(&ndlp->lock);
4733 icmd = &elsiocb->iocb;
4734 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4735 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4736 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4737 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4738 pcmd += sizeof(uint32_t);
4740 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4741 "Issue ACC: did:x%x flg:x%x",
4742 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4746 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
4747 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4748 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
4752 icmd = &elsiocb->iocb;
4753 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4754 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4755 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4758 elsiocb->context_un.mbox = mbox;
4760 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4761 pcmd += sizeof(uint32_t);
4762 sp = (struct serv_parm *)pcmd;
4764 if (flag == ELS_CMD_FLOGI) {
4765 /* Copy the received service parameters back */
4766 memcpy(sp, &phba->fc_fabparam,
4767 sizeof(struct serv_parm));
4769 /* Clear the F_Port bit */
4772 /* Mark all class service parameters as invalid */
4773 sp->cls1.classValid = 0;
4774 sp->cls2.classValid = 0;
4775 sp->cls3.classValid = 0;
4776 sp->cls4.classValid = 0;
4778 /* Copy our worldwide names */
4779 memcpy(&sp->portName, &vport->fc_sparam.portName,
4780 sizeof(struct lpfc_name));
4781 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
4782 sizeof(struct lpfc_name));
4784 memcpy(pcmd, &vport->fc_sparam,
4785 sizeof(struct serv_parm));
4787 sp->cmn.valid_vendor_ver_level = 0;
4788 memset(sp->un.vendorVersion, 0,
4789 sizeof(sp->un.vendorVersion));
4790 sp->cmn.bbRcvSizeMsb &= 0xF;
4792 /* If our firmware supports this feature, convey that
4793 * info to the target using the vendor specific field.
4795 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
4796 sp->cmn.valid_vendor_ver_level = 1;
4797 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
4799 cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
4803 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4804 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
4805 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4808 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
4809 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4810 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
4814 icmd = &elsiocb->iocb;
4815 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4816 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4817 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4819 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
4820 sizeof(uint32_t) + sizeof(PRLO));
4821 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
4822 els_pkt_ptr = (ELS_PKT *) pcmd;
4823 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
4825 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4826 "Issue ACC PRLO: did:x%x flg:x%x",
4827 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4832 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
4833 spin_lock_irq(&ndlp->lock);
4834 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4835 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
4836 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4837 spin_unlock_irq(&ndlp->lock);
4838 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
4840 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4843 phba->fc_stat.elsXmitACC++;
4844 elsiocb->context1 = lpfc_nlp_get(ndlp);
4845 if (!elsiocb->context1)
4848 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4849 if (rc == IOCB_ERROR)
4852 /* Xmit ELS ACC response tag <ulpIoTag> */
4853 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4854 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, "
4855 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x "
4856 "RPI: x%x, fc_flag x%x\n",
4857 rc, elsiocb->iotag, elsiocb->sli4_xritag,
4858 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4859 ndlp->nlp_rpi, vport->fc_flag);
4865 lpfc_els_free_iocb(phba, elsiocb);
4870 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4871 * @vport: pointer to a virtual N_Port data structure.
4872 * @rejectError: reject response to issue
4873 * @oldiocb: pointer to the original lpfc command iocb data structure.
4874 * @ndlp: pointer to a node-list data structure.
4875 * @mbox: pointer to the driver internal queue element for mailbox command.
4877 * This routine prepares and issue an Reject (RJT) response IOCB
4878 * command. If a @mbox pointer is passed in, it will be put into the
4879 * context_un.mbox field of the IOCB for the completion callback function
4880 * to issue to the HBA later.
4882 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4883 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4884 * will be stored into the context1 field of the IOCB for the completion
4885 * callback function to the reject response ELS IOCB command.
4888 * 0 - Successfully issued reject response
4889 * 1 - Failed to issue reject response
4892 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
4893 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4897 struct lpfc_hba *phba = vport->phba;
4900 struct lpfc_iocbq *elsiocb;
4904 cmdsize = 2 * sizeof(uint32_t);
4905 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4906 ndlp->nlp_DID, ELS_CMD_LS_RJT);
4910 icmd = &elsiocb->iocb;
4911 oldcmd = &oldiocb->iocb;
4912 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4913 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4914 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4916 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4917 pcmd += sizeof(uint32_t);
4918 *((uint32_t *) (pcmd)) = rejectError;
4921 elsiocb->context_un.mbox = mbox;
4923 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4924 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4925 "0129 Xmit ELS RJT x%x response tag x%x "
4926 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4928 rejectError, elsiocb->iotag,
4929 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4930 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
4931 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4932 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4933 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4935 phba->fc_stat.elsXmitLSRJT++;
4936 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4937 elsiocb->context1 = lpfc_nlp_get(ndlp);
4938 if (!elsiocb->context1)
4941 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4942 if (rc == IOCB_ERROR)
4950 lpfc_els_free_iocb(phba, elsiocb);
4955 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4956 * @vport: pointer to a virtual N_Port data structure.
4957 * @oldiocb: pointer to the original lpfc command iocb data structure.
4958 * @ndlp: pointer to a node-list data structure.
4960 * This routine prepares and issues an Accept (ACC) response to Address
4961 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4962 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4964 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4965 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4966 * will be stored into the context1 field of the IOCB for the completion
4967 * callback function to the ADISC Accept response ELS IOCB command.
4970 * 0 - Successfully issued acc adisc response
4971 * 1 - Failed to issue adisc acc response
4974 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4975 struct lpfc_nodelist *ndlp)
4977 struct lpfc_hba *phba = vport->phba;
4979 IOCB_t *icmd, *oldcmd;
4980 struct lpfc_iocbq *elsiocb;
4985 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
4986 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4987 ndlp->nlp_DID, ELS_CMD_ACC);
4991 icmd = &elsiocb->iocb;
4992 oldcmd = &oldiocb->iocb;
4993 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4994 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4996 /* Xmit ADISC ACC response tag <ulpIoTag> */
4997 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4998 "0130 Xmit ADISC ACC response iotag x%x xri: "
4999 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
5000 elsiocb->iotag, elsiocb->iocb.ulpContext,
5001 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5003 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5005 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5006 pcmd += sizeof(uint32_t);
5008 ap = (ADISC *) (pcmd);
5009 ap->hardAL_PA = phba->fc_pref_ALPA;
5010 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
5011 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
5012 ap->DID = be32_to_cpu(vport->fc_myDID);
5014 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5015 "Issue ACC ADISC: did:x%x flg:x%x refcnt %d",
5016 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
5018 phba->fc_stat.elsXmitACC++;
5019 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5020 elsiocb->context1 = lpfc_nlp_get(ndlp);
5021 if (!elsiocb->context1)
5024 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5025 if (rc == IOCB_ERROR)
5028 /* Xmit ELS ACC response tag <ulpIoTag> */
5029 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5030 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, "
5031 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x "
5032 "RPI: x%x, fc_flag x%x\n",
5033 rc, elsiocb->iotag, elsiocb->sli4_xritag,
5034 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5035 ndlp->nlp_rpi, vport->fc_flag);
5041 lpfc_els_free_iocb(phba, elsiocb);
5046 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
5047 * @vport: pointer to a virtual N_Port data structure.
5048 * @oldiocb: pointer to the original lpfc command iocb data structure.
5049 * @ndlp: pointer to a node-list data structure.
5051 * This routine prepares and issues an Accept (ACC) response to Process
5052 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
5053 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
5055 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5056 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5057 * will be stored into the context1 field of the IOCB for the completion
5058 * callback function to the PRLI Accept response ELS IOCB command.
5061 * 0 - Successfully issued acc prli response
5062 * 1 - Failed to issue acc prli response
5065 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
5066 struct lpfc_nodelist *ndlp)
5068 struct lpfc_hba *phba = vport->phba;
5070 struct lpfc_nvme_prli *npr_nvme;
5074 struct lpfc_iocbq *elsiocb;
5077 uint32_t prli_fc4_req, *req_payload;
5078 struct lpfc_dmabuf *req_buf;
5082 /* Need the incoming PRLI payload to determine if the ACC is for an
5083 * FC4 or NVME PRLI type. The PRLI type is at word 1.
5085 req_buf = (struct lpfc_dmabuf *)oldiocb->context2;
5086 req_payload = (((uint32_t *)req_buf->virt) + 1);
5088 /* PRLI type payload is at byte 3 for FCP or NVME. */
5089 prli_fc4_req = be32_to_cpu(*req_payload);
5090 prli_fc4_req = (prli_fc4_req >> 24) & 0xff;
5091 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5092 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n",
5093 prli_fc4_req, *((uint32_t *)req_payload));
5095 if (prli_fc4_req == PRLI_FCP_TYPE) {
5096 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
5097 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
5098 } else if (prli_fc4_req & PRLI_NVME_TYPE) {
5099 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli);
5100 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK));
5105 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
5106 ndlp->nlp_DID, elsrspcmd);
5110 icmd = &elsiocb->iocb;
5111 oldcmd = &oldiocb->iocb;
5112 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
5113 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
5115 /* Xmit PRLI ACC response tag <ulpIoTag> */
5116 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5117 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
5118 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5119 elsiocb->iotag, elsiocb->iocb.ulpContext,
5120 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5122 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5123 memset(pcmd, 0, cmdsize);
5125 *((uint32_t *)(pcmd)) = elsrspcmd;
5126 pcmd += sizeof(uint32_t);
5128 /* For PRLI, remainder of payload is PRLI parameter page */
5131 if (prli_fc4_req == PRLI_FCP_TYPE) {
5133 * If the remote port is a target and our firmware version
5134 * is 3.20 or later, set the following bits for FC-TAPE
5137 npr = (PRLI *) pcmd;
5138 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
5139 (vpd->rev.feaLevelHigh >= 0x02)) {
5140 npr->ConfmComplAllowed = 1;
5142 npr->TaskRetryIdReq = 1;
5144 npr->acceptRspCode = PRLI_REQ_EXECUTED;
5145 npr->estabImagePair = 1;
5146 npr->readXferRdyDis = 1;
5147 npr->ConfmComplAllowed = 1;
5148 npr->prliType = PRLI_FCP_TYPE;
5149 npr->initiatorFunc = 1;
5150 } else if (prli_fc4_req & PRLI_NVME_TYPE) {
5151 /* Respond with an NVME PRLI Type */
5152 npr_nvme = (struct lpfc_nvme_prli *) pcmd;
5153 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
5154 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
5155 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED);
5156 if (phba->nvmet_support) {
5157 bf_set(prli_tgt, npr_nvme, 1);
5158 bf_set(prli_disc, npr_nvme, 1);
5159 if (phba->cfg_nvme_enable_fb) {
5160 bf_set(prli_fba, npr_nvme, 1);
5162 /* TBD. Target mode needs to post buffers
5163 * that support the configured first burst
5166 bf_set(prli_fb_sz, npr_nvme,
5167 phba->cfg_nvmet_fb_size);
5170 bf_set(prli_init, npr_nvme, 1);
5173 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
5174 "6015 NVME issue PRLI ACC word1 x%08x "
5175 "word4 x%08x word5 x%08x flag x%x, "
5176 "fcp_info x%x nlp_type x%x\n",
5177 npr_nvme->word1, npr_nvme->word4,
5178 npr_nvme->word5, ndlp->nlp_flag,
5179 ndlp->nlp_fcp_info, ndlp->nlp_type);
5180 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
5181 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
5182 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5);
5184 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5185 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n",
5186 prli_fc4_req, ndlp->nlp_fc4_type,
5189 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5190 "Issue ACC PRLI: did:x%x flg:x%x",
5191 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
5193 phba->fc_stat.elsXmitACC++;
5194 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5195 elsiocb->context1 = lpfc_nlp_get(ndlp);
5196 if (!elsiocb->context1)
5199 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5200 if (rc == IOCB_ERROR)
5207 lpfc_els_free_iocb(phba, elsiocb);
5212 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
5213 * @vport: pointer to a virtual N_Port data structure.
5214 * @format: rnid command format.
5215 * @oldiocb: pointer to the original lpfc command iocb data structure.
5216 * @ndlp: pointer to a node-list data structure.
5218 * This routine issues a Request Node Identification Data (RNID) Accept
5219 * (ACC) response. It constructs the RNID ACC response command according to
5220 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
5221 * issue the response. Note that this command does not need to hold the ndlp
5222 * reference count for the callback. So, the ndlp reference count taken by
5223 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
5224 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
5225 * there is no ndlp reference available.
5227 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5228 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5229 * will be stored into the context1 field of the IOCB for the completion
5230 * callback function. However, for the RNID Accept Response ELS command,
5231 * this is undone later by this routine after the IOCB is allocated.
5234 * 0 - Successfully issued acc rnid response
5235 * 1 - Failed to issue acc rnid response
5238 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
5239 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
5241 struct lpfc_hba *phba = vport->phba;
5243 IOCB_t *icmd, *oldcmd;
5244 struct lpfc_iocbq *elsiocb;
5249 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
5250 + (2 * sizeof(struct lpfc_name));
5252 cmdsize += sizeof(RNID_TOP_DISC);
5254 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
5255 ndlp->nlp_DID, ELS_CMD_ACC);
5259 icmd = &elsiocb->iocb;
5260 oldcmd = &oldiocb->iocb;
5261 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
5262 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
5264 /* Xmit RNID ACC response tag <ulpIoTag> */
5265 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5266 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
5267 elsiocb->iotag, elsiocb->iocb.ulpContext);
5268 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5269 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5270 pcmd += sizeof(uint32_t);
5272 memset(pcmd, 0, sizeof(RNID));
5273 rn = (RNID *) (pcmd);
5274 rn->Format = format;
5275 rn->CommonLen = (2 * sizeof(struct lpfc_name));
5276 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
5277 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
5280 rn->SpecificLen = 0;
5282 case RNID_TOPOLOGY_DISC:
5283 rn->SpecificLen = sizeof(RNID_TOP_DISC);
5284 memcpy(&rn->un.topologyDisc.portName,
5285 &vport->fc_portname, sizeof(struct lpfc_name));
5286 rn->un.topologyDisc.unitType = RNID_HBA;
5287 rn->un.topologyDisc.physPort = 0;
5288 rn->un.topologyDisc.attachedNodes = 0;
5292 rn->SpecificLen = 0;
5296 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5297 "Issue ACC RNID: did:x%x flg:x%x refcnt %d",
5298 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
5300 phba->fc_stat.elsXmitACC++;
5301 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5302 elsiocb->context1 = lpfc_nlp_get(ndlp);
5303 if (!elsiocb->context1)
5306 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5307 if (rc == IOCB_ERROR)
5315 lpfc_els_free_iocb(phba, elsiocb);
5320 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
5321 * @vport: pointer to a virtual N_Port data structure.
5322 * @iocb: pointer to the lpfc command iocb data structure.
5323 * @ndlp: pointer to a node-list data structure.
5328 lpfc_els_clear_rrq(struct lpfc_vport *vport,
5329 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
5331 struct lpfc_hba *phba = vport->phba;
5336 struct lpfc_node_rrq *prrq;
5339 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
5340 pcmd += sizeof(uint32_t);
5341 rrq = (struct RRQ *)pcmd;
5342 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
5343 rxid = bf_get(rrq_rxid, rrq);
5345 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5346 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
5348 be32_to_cpu(bf_get(rrq_did, rrq)),
5349 bf_get(rrq_oxid, rrq),
5351 iocb->iotag, iocb->iocb.ulpContext);
5353 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5354 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
5355 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
5356 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
5357 xri = bf_get(rrq_oxid, rrq);
5360 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
5362 lpfc_clr_rrq_active(phba, xri, prrq);
5367 * lpfc_els_rsp_echo_acc - Issue echo acc response
5368 * @vport: pointer to a virtual N_Port data structure.
5369 * @data: pointer to echo data to return in the accept.
5370 * @oldiocb: pointer to the original lpfc command iocb data structure.
5371 * @ndlp: pointer to a node-list data structure.
5374 * 0 - Successfully issued acc echo response
5375 * 1 - Failed to issue acc echo response
5378 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
5379 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
5381 struct lpfc_hba *phba = vport->phba;
5382 struct lpfc_iocbq *elsiocb;
5387 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
5389 /* The accumulated length can exceed the BPL_SIZE. For
5390 * now, use this as the limit
5392 if (cmdsize > LPFC_BPL_SIZE)
5393 cmdsize = LPFC_BPL_SIZE;
5394 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
5395 ndlp->nlp_DID, ELS_CMD_ACC);
5399 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
5400 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
5402 /* Xmit ECHO ACC response tag <ulpIoTag> */
5403 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5404 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
5405 elsiocb->iotag, elsiocb->iocb.ulpContext);
5406 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5407 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5408 pcmd += sizeof(uint32_t);
5409 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
5411 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5412 "Issue ACC ECHO: did:x%x flg:x%x refcnt %d",
5413 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
5415 phba->fc_stat.elsXmitACC++;
5416 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5417 elsiocb->context1 = lpfc_nlp_get(ndlp);
5418 if (!elsiocb->context1)
5421 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5422 if (rc == IOCB_ERROR)
5429 lpfc_els_free_iocb(phba, elsiocb);
5434 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
5435 * @vport: pointer to a host virtual N_Port data structure.
5437 * This routine issues Address Discover (ADISC) ELS commands to those
5438 * N_Ports which are in node port recovery state and ADISC has not been issued
5439 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
5440 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
5441 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
5442 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
5443 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
5444 * IOCBs quit for later pick up. On the other hand, after walking through
5445 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
5446 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
5447 * no more ADISC need to be sent.
5450 * The number of N_Ports with adisc issued.
5453 lpfc_els_disc_adisc(struct lpfc_vport *vport)
5455 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5456 struct lpfc_nodelist *ndlp, *next_ndlp;
5459 /* go thru NPR nodes and issue any remaining ELS ADISCs */
5460 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
5461 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
5462 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
5463 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
5464 spin_lock_irq(&ndlp->lock);
5465 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5466 spin_unlock_irq(&ndlp->lock);
5467 ndlp->nlp_prev_state = ndlp->nlp_state;
5468 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
5469 lpfc_issue_els_adisc(vport, ndlp, 0);
5471 vport->num_disc_nodes++;
5472 if (vport->num_disc_nodes >=
5473 vport->cfg_discovery_threads) {
5474 spin_lock_irq(shost->host_lock);
5475 vport->fc_flag |= FC_NLP_MORE;
5476 spin_unlock_irq(shost->host_lock);
5481 if (sentadisc == 0) {
5482 spin_lock_irq(shost->host_lock);
5483 vport->fc_flag &= ~FC_NLP_MORE;
5484 spin_unlock_irq(shost->host_lock);
5490 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
5491 * @vport: pointer to a host virtual N_Port data structure.
5493 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
5494 * which are in node port recovery state, with a @vport. Each time an ELS
5495 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
5496 * the per @vport number of discover count (num_disc_nodes) shall be
5497 * incremented. If the num_disc_nodes reaches a pre-configured threshold
5498 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
5499 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
5500 * later pick up. On the other hand, after walking through all the ndlps with
5501 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
5502 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
5503 * PLOGI need to be sent.
5506 * The number of N_Ports with plogi issued.
5509 lpfc_els_disc_plogi(struct lpfc_vport *vport)
5511 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5512 struct lpfc_nodelist *ndlp, *next_ndlp;
5515 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
5516 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
5517 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
5518 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
5519 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
5520 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
5521 ndlp->nlp_prev_state = ndlp->nlp_state;
5522 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
5523 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
5525 vport->num_disc_nodes++;
5526 if (vport->num_disc_nodes >=
5527 vport->cfg_discovery_threads) {
5528 spin_lock_irq(shost->host_lock);
5529 vport->fc_flag |= FC_NLP_MORE;
5530 spin_unlock_irq(shost->host_lock);
5536 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5537 "6452 Discover PLOGI %d flag x%x\n",
5538 sentplogi, vport->fc_flag);
5541 lpfc_set_disctmo(vport);
5544 spin_lock_irq(shost->host_lock);
5545 vport->fc_flag &= ~FC_NLP_MORE;
5546 spin_unlock_irq(shost->host_lock);
5552 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
5556 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
5557 desc->payload.els_req = word0;
5558 desc->length = cpu_to_be32(sizeof(desc->payload));
5560 return sizeof(struct fc_rdp_link_service_desc);
5564 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
5565 uint8_t *page_a0, uint8_t *page_a2)
5567 uint16_t wavelength;
5568 uint16_t temperature;
5574 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
5575 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
5577 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
5579 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
5580 &page_a0[SSF_TRANSCEIVER_CODE_B4];
5581 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
5582 &page_a0[SSF_TRANSCEIVER_CODE_B5];
5584 if ((trasn_code_byte4->fc_sw_laser) ||
5585 (trasn_code_byte5->fc_sw_laser_sl) ||
5586 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
5587 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
5588 } else if (trasn_code_byte4->fc_lw_laser) {
5589 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
5590 page_a0[SSF_WAVELENGTH_B0];
5591 if (wavelength == SFP_WAVELENGTH_LC1310)
5592 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
5593 if (wavelength == SFP_WAVELENGTH_LL1550)
5594 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
5596 /* check if its SFP+ */
5597 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
5598 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
5599 << SFP_FLAG_CT_SHIFT;
5601 /* check if its OPTICAL */
5602 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
5603 SFP_FLAG_IS_OPTICAL_PORT : 0)
5604 << SFP_FLAG_IS_OPTICAL_SHIFT;
5606 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
5607 page_a2[SFF_TEMPERATURE_B0]);
5608 vcc = (page_a2[SFF_VCC_B1] << 8 |
5609 page_a2[SFF_VCC_B0]);
5610 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
5611 page_a2[SFF_TXPOWER_B0]);
5612 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
5613 page_a2[SFF_TX_BIAS_CURRENT_B0]);
5614 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
5615 page_a2[SFF_RXPOWER_B0]);
5616 desc->sfp_info.temperature = cpu_to_be16(temperature);
5617 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
5618 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
5619 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
5620 desc->sfp_info.vcc = cpu_to_be16(vcc);
5622 desc->sfp_info.flags = cpu_to_be16(flag);
5623 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
5625 return sizeof(struct fc_rdp_sfp_desc);
5629 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
5634 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
5636 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
5638 desc->info.port_type = cpu_to_be32(type);
5640 desc->info.link_status.link_failure_cnt =
5641 cpu_to_be32(stat->linkFailureCnt);
5642 desc->info.link_status.loss_of_synch_cnt =
5643 cpu_to_be32(stat->lossSyncCnt);
5644 desc->info.link_status.loss_of_signal_cnt =
5645 cpu_to_be32(stat->lossSignalCnt);
5646 desc->info.link_status.primitive_seq_proto_err =
5647 cpu_to_be32(stat->primSeqErrCnt);
5648 desc->info.link_status.invalid_trans_word =
5649 cpu_to_be32(stat->invalidXmitWord);
5650 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
5652 desc->length = cpu_to_be32(sizeof(desc->info));
5654 return sizeof(struct fc_rdp_link_error_status_desc);
5658 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
5659 struct lpfc_vport *vport)
5663 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
5665 bbCredit = vport->fc_sparam.cmn.bbCreditLsb |
5666 (vport->fc_sparam.cmn.bbCreditMsb << 8);
5667 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit);
5668 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
5669 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb |
5670 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8);
5671 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit);
5673 desc->bbc_info.attached_port_bbc = 0;
5676 desc->bbc_info.rtt = 0;
5677 desc->length = cpu_to_be32(sizeof(desc->bbc_info));
5679 return sizeof(struct fc_rdp_bbc_desc);
5683 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
5684 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
5688 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5690 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM];
5691 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM];
5692 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING];
5693 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING];
5695 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
5696 flags |= RDP_OET_HIGH_ALARM;
5697 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
5698 flags |= RDP_OET_LOW_ALARM;
5699 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
5700 flags |= RDP_OET_HIGH_WARNING;
5701 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
5702 flags |= RDP_OET_LOW_WARNING;
5704 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
5705 desc->oed_info.function_flags = cpu_to_be32(flags);
5706 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5707 return sizeof(struct fc_rdp_oed_sfp_desc);
5711 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
5712 struct fc_rdp_oed_sfp_desc *desc,
5717 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5719 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM];
5720 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM];
5721 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING];
5722 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING];
5724 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
5725 flags |= RDP_OET_HIGH_ALARM;
5726 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE)
5727 flags |= RDP_OET_LOW_ALARM;
5728 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
5729 flags |= RDP_OET_HIGH_WARNING;
5730 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE)
5731 flags |= RDP_OET_LOW_WARNING;
5733 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
5734 desc->oed_info.function_flags = cpu_to_be32(flags);
5735 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5736 return sizeof(struct fc_rdp_oed_sfp_desc);
5740 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
5741 struct fc_rdp_oed_sfp_desc *desc,
5746 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5748 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM];
5749 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM];
5750 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING];
5751 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING];
5753 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS)
5754 flags |= RDP_OET_HIGH_ALARM;
5755 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS)
5756 flags |= RDP_OET_LOW_ALARM;
5757 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS)
5758 flags |= RDP_OET_HIGH_WARNING;
5759 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS)
5760 flags |= RDP_OET_LOW_WARNING;
5762 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
5763 desc->oed_info.function_flags = cpu_to_be32(flags);
5764 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5765 return sizeof(struct fc_rdp_oed_sfp_desc);
5769 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
5770 struct fc_rdp_oed_sfp_desc *desc,
5775 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5777 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM];
5778 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM];
5779 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING];
5780 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING];
5782 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER)
5783 flags |= RDP_OET_HIGH_ALARM;
5784 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER)
5785 flags |= RDP_OET_LOW_ALARM;
5786 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER)
5787 flags |= RDP_OET_HIGH_WARNING;
5788 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER)
5789 flags |= RDP_OET_LOW_WARNING;
5791 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
5792 desc->oed_info.function_flags = cpu_to_be32(flags);
5793 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5794 return sizeof(struct fc_rdp_oed_sfp_desc);
5799 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
5800 struct fc_rdp_oed_sfp_desc *desc,
5805 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5807 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM];
5808 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM];
5809 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING];
5810 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING];
5812 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER)
5813 flags |= RDP_OET_HIGH_ALARM;
5814 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER)
5815 flags |= RDP_OET_LOW_ALARM;
5816 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER)
5817 flags |= RDP_OET_HIGH_WARNING;
5818 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER)
5819 flags |= RDP_OET_LOW_WARNING;
5821 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
5822 desc->oed_info.function_flags = cpu_to_be32(flags);
5823 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5824 return sizeof(struct fc_rdp_oed_sfp_desc);
5828 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
5829 uint8_t *page_a0, struct lpfc_vport *vport)
5831 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
5832 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
5833 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
5834 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
5835 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4);
5836 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
5837 desc->length = cpu_to_be32(sizeof(desc->opd_info));
5838 return sizeof(struct fc_rdp_opd_sfp_desc);
5842 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
5844 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
5846 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
5848 desc->info.CorrectedBlocks =
5849 cpu_to_be32(stat->fecCorrBlkCount);
5850 desc->info.UncorrectableBlocks =
5851 cpu_to_be32(stat->fecUncorrBlkCount);
5853 desc->length = cpu_to_be32(sizeof(desc->info));
5855 return sizeof(struct fc_fec_rdp_desc);
5859 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
5861 uint16_t rdp_cap = 0;
5864 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
5866 switch (phba->fc_linkspeed) {
5867 case LPFC_LINK_SPEED_1GHZ:
5868 rdp_speed = RDP_PS_1GB;
5870 case LPFC_LINK_SPEED_2GHZ:
5871 rdp_speed = RDP_PS_2GB;
5873 case LPFC_LINK_SPEED_4GHZ:
5874 rdp_speed = RDP_PS_4GB;
5876 case LPFC_LINK_SPEED_8GHZ:
5877 rdp_speed = RDP_PS_8GB;
5879 case LPFC_LINK_SPEED_10GHZ:
5880 rdp_speed = RDP_PS_10GB;
5882 case LPFC_LINK_SPEED_16GHZ:
5883 rdp_speed = RDP_PS_16GB;
5885 case LPFC_LINK_SPEED_32GHZ:
5886 rdp_speed = RDP_PS_32GB;
5888 case LPFC_LINK_SPEED_64GHZ:
5889 rdp_speed = RDP_PS_64GB;
5892 rdp_speed = RDP_PS_UNKNOWN;
5896 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
5898 if (phba->lmt & LMT_128Gb)
5899 rdp_cap |= RDP_PS_128GB;
5900 if (phba->lmt & LMT_64Gb)
5901 rdp_cap |= RDP_PS_64GB;
5902 if (phba->lmt & LMT_32Gb)
5903 rdp_cap |= RDP_PS_32GB;
5904 if (phba->lmt & LMT_16Gb)
5905 rdp_cap |= RDP_PS_16GB;
5906 if (phba->lmt & LMT_10Gb)
5907 rdp_cap |= RDP_PS_10GB;
5908 if (phba->lmt & LMT_8Gb)
5909 rdp_cap |= RDP_PS_8GB;
5910 if (phba->lmt & LMT_4Gb)
5911 rdp_cap |= RDP_PS_4GB;
5912 if (phba->lmt & LMT_2Gb)
5913 rdp_cap |= RDP_PS_2GB;
5914 if (phba->lmt & LMT_1Gb)
5915 rdp_cap |= RDP_PS_1GB;
5918 rdp_cap = RDP_CAP_UNKNOWN;
5919 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
5920 rdp_cap |= RDP_CAP_USER_CONFIGURED;
5922 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
5923 desc->length = cpu_to_be32(sizeof(desc->info));
5924 return sizeof(struct fc_rdp_port_speed_desc);
5928 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
5929 struct lpfc_vport *vport)
5932 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5934 memcpy(desc->port_names.wwnn, &vport->fc_nodename,
5935 sizeof(desc->port_names.wwnn));
5937 memcpy(desc->port_names.wwpn, &vport->fc_portname,
5938 sizeof(desc->port_names.wwpn));
5940 desc->length = cpu_to_be32(sizeof(desc->port_names));
5941 return sizeof(struct fc_rdp_port_name_desc);
5945 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
5946 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5949 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5950 if (vport->fc_flag & FC_FABRIC) {
5951 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
5952 sizeof(desc->port_names.wwnn));
5954 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
5955 sizeof(desc->port_names.wwpn));
5956 } else { /* Point to Point */
5957 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
5958 sizeof(desc->port_names.wwnn));
5960 memcpy(desc->port_names.wwpn, &ndlp->nlp_portname,
5961 sizeof(desc->port_names.wwpn));
5964 desc->length = cpu_to_be32(sizeof(desc->port_names));
5965 return sizeof(struct fc_rdp_port_name_desc);
5969 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
5972 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
5973 struct lpfc_vport *vport = ndlp->vport;
5974 struct lpfc_iocbq *elsiocb;
5975 struct ulp_bde64 *bpl;
5978 struct ls_rjt *stat;
5979 struct fc_rdp_res_frame *rdp_res;
5980 uint32_t cmdsize, len;
5984 if (status != SUCCESS)
5987 /* This will change once we know the true size of the RDP payload */
5988 cmdsize = sizeof(struct fc_rdp_res_frame);
5990 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
5991 lpfc_max_els_tries, rdp_context->ndlp,
5992 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
5994 goto free_rdp_context;
5996 icmd = &elsiocb->iocb;
5997 icmd->ulpContext = rdp_context->rx_id;
5998 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
6000 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6001 "2171 Xmit RDP response tag x%x xri x%x, "
6002 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
6003 elsiocb->iotag, elsiocb->iocb.ulpContext,
6004 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6006 rdp_res = (struct fc_rdp_res_frame *)
6007 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6008 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6009 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
6010 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6012 /* Update Alarm and Warning */
6013 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS);
6014 phba->sfp_alarm |= *flag_ptr;
6015 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS);
6016 phba->sfp_warning |= *flag_ptr;
6018 /* For RDP payload */
6020 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
6021 (len + pcmd), ELS_CMD_RDP);
6023 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
6024 rdp_context->page_a0, rdp_context->page_a2);
6025 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
6027 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
6028 (len + pcmd), &rdp_context->link_stat);
6029 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
6030 (len + pcmd), vport);
6031 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
6032 (len + pcmd), vport, ndlp);
6033 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
6034 &rdp_context->link_stat);
6035 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
6036 &rdp_context->link_stat, vport);
6037 len += lpfc_rdp_res_oed_temp_desc(phba,
6038 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6039 rdp_context->page_a2);
6040 len += lpfc_rdp_res_oed_voltage_desc(phba,
6041 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6042 rdp_context->page_a2);
6043 len += lpfc_rdp_res_oed_txbias_desc(phba,
6044 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6045 rdp_context->page_a2);
6046 len += lpfc_rdp_res_oed_txpower_desc(phba,
6047 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6048 rdp_context->page_a2);
6049 len += lpfc_rdp_res_oed_rxpower_desc(phba,
6050 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6051 rdp_context->page_a2);
6052 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
6053 rdp_context->page_a0, vport);
6055 rdp_res->length = cpu_to_be32(len - 8);
6056 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6058 /* Now that we know the true size of the payload, update the BPL */
6059 bpl = (struct ulp_bde64 *)
6060 (((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
6061 bpl->tus.f.bdeSize = len;
6062 bpl->tus.f.bdeFlags = 0;
6063 bpl->tus.w = le32_to_cpu(bpl->tus.w);
6065 phba->fc_stat.elsXmitACC++;
6066 elsiocb->context1 = lpfc_nlp_get(ndlp);
6067 if (!elsiocb->context1) {
6068 lpfc_els_free_iocb(phba, elsiocb);
6069 goto free_rdp_context;
6072 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6073 if (rc == IOCB_ERROR) {
6075 lpfc_els_free_iocb(phba, elsiocb);
6078 goto free_rdp_context;
6081 cmdsize = 2 * sizeof(uint32_t);
6082 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
6083 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
6085 goto free_rdp_context;
6087 icmd = &elsiocb->iocb;
6088 icmd->ulpContext = rdp_context->rx_id;
6089 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
6090 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6092 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
6093 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
6094 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6096 phba->fc_stat.elsXmitLSRJT++;
6097 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6098 elsiocb->context1 = lpfc_nlp_get(ndlp);
6099 if (!elsiocb->context1) {
6100 lpfc_els_free_iocb(phba, elsiocb);
6101 goto free_rdp_context;
6104 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6105 if (rc == IOCB_ERROR) {
6107 lpfc_els_free_iocb(phba, elsiocb);
6111 /* This reference put is for the original unsolicited RDP. If the
6112 * iocb prep failed, there is no reference to remove.
6119 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
6121 LPFC_MBOXQ_t *mbox = NULL;
6124 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6126 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
6127 "7105 failed to allocate mailbox memory");
6131 if (lpfc_sli4_dump_page_a0(phba, mbox))
6132 goto prep_mbox_fail;
6133 mbox->vport = rdp_context->ndlp->vport;
6134 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
6135 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
6136 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6137 if (rc == MBX_NOT_FINISHED)
6138 goto issue_mbox_fail;
6144 mempool_free(mbox, phba->mbox_mem_pool);
6149 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
6150 * @vport: pointer to a host virtual N_Port data structure.
6151 * @cmdiocb: pointer to lpfc command iocb data structure.
6152 * @ndlp: pointer to a node-list data structure.
6154 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
6155 * IOCB. First, the payload of the unsolicited RDP is checked.
6156 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
6157 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
6158 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
6159 * gather all data and send RDP response.
6162 * 0 - Sent the acc response
6163 * 1 - Sent the reject response.
6166 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6167 struct lpfc_nodelist *ndlp)
6169 struct lpfc_hba *phba = vport->phba;
6170 struct lpfc_dmabuf *pcmd;
6171 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
6172 struct fc_rdp_req_frame *rdp_req;
6173 struct lpfc_rdp_context *rdp_context;
6177 if (phba->sli_rev < LPFC_SLI_REV4 ||
6178 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
6179 LPFC_SLI_INTF_IF_TYPE_2) {
6180 rjt_err = LSRJT_UNABLE_TPC;
6181 rjt_expl = LSEXP_REQ_UNSUPPORTED;
6185 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
6186 rjt_err = LSRJT_UNABLE_TPC;
6187 rjt_expl = LSEXP_REQ_UNSUPPORTED;
6191 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6192 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
6194 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6195 "2422 ELS RDP Request "
6196 "dec len %d tag x%x port_id %d len %d\n",
6197 be32_to_cpu(rdp_req->rdp_des_length),
6198 be32_to_cpu(rdp_req->nport_id_desc.tag),
6199 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
6200 be32_to_cpu(rdp_req->nport_id_desc.length));
6202 if (sizeof(struct fc_rdp_nport_desc) !=
6203 be32_to_cpu(rdp_req->rdp_des_length))
6205 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
6207 if (RDP_NPORT_ID_SIZE !=
6208 be32_to_cpu(rdp_req->nport_id_desc.length))
6210 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
6212 rjt_err = LSRJT_UNABLE_TPC;
6216 cmd = &cmdiocb->iocb;
6217 rdp_context->ndlp = lpfc_nlp_get(ndlp);
6218 if (!rdp_context->ndlp) {
6220 rjt_err = LSRJT_UNABLE_TPC;
6223 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
6224 rdp_context->rx_id = cmd->ulpContext;
6225 rdp_context->cmpl = lpfc_els_rdp_cmpl;
6226 if (lpfc_get_rdp_info(phba, rdp_context)) {
6227 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
6228 "2423 Unable to send mailbox");
6230 rjt_err = LSRJT_UNABLE_TPC;
6238 rjt_err = LSRJT_LOGICAL_ERR;
6241 memset(&stat, 0, sizeof(stat));
6242 stat.un.b.lsRjtRsnCode = rjt_err;
6243 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
6244 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6250 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6255 struct lpfc_iocbq *elsiocb;
6256 struct lpfc_nodelist *ndlp;
6257 struct ls_rjt *stat;
6258 union lpfc_sli4_cfg_shdr *shdr;
6259 struct lpfc_lcb_context *lcb_context;
6260 struct fc_lcb_res_frame *lcb_res;
6261 uint32_t cmdsize, shdr_status, shdr_add_status;
6265 lcb_context = (struct lpfc_lcb_context *)pmb->ctx_ndlp;
6266 ndlp = lcb_context->ndlp;
6267 pmb->ctx_ndlp = NULL;
6268 pmb->ctx_buf = NULL;
6270 shdr = (union lpfc_sli4_cfg_shdr *)
6271 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
6272 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6273 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6275 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
6276 "0194 SET_BEACON_CONFIG mailbox "
6277 "completed with status x%x add_status x%x,"
6278 " mbx status x%x\n",
6279 shdr_status, shdr_add_status, mb->mbxStatus);
6281 if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status ||
6282 (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) ||
6283 (shdr_add_status == ADD_STATUS_INVALID_REQUEST)) {
6284 mempool_free(pmb, phba->mbox_mem_pool);
6288 mempool_free(pmb, phba->mbox_mem_pool);
6289 cmdsize = sizeof(struct fc_lcb_res_frame);
6290 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6291 lpfc_max_els_tries, ndlp,
6292 ndlp->nlp_DID, ELS_CMD_ACC);
6294 /* Decrement the ndlp reference count from previous mbox command */
6298 goto free_lcb_context;
6300 lcb_res = (struct fc_lcb_res_frame *)
6301 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
6303 memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame));
6304 icmd = &elsiocb->iocb;
6305 icmd->ulpContext = lcb_context->rx_id;
6306 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
6308 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
6309 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
6310 lcb_res->lcb_sub_command = lcb_context->sub_command;
6311 lcb_res->lcb_type = lcb_context->type;
6312 lcb_res->capability = lcb_context->capability;
6313 lcb_res->lcb_frequency = lcb_context->frequency;
6314 lcb_res->lcb_duration = lcb_context->duration;
6315 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6316 phba->fc_stat.elsXmitACC++;
6318 elsiocb->context1 = lpfc_nlp_get(ndlp);
6319 if (!elsiocb->context1)
6322 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6328 lpfc_els_free_iocb(phba, elsiocb);
6334 cmdsize = sizeof(struct fc_lcb_res_frame);
6335 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6336 lpfc_max_els_tries, ndlp,
6337 ndlp->nlp_DID, ELS_CMD_LS_RJT);
6340 goto free_lcb_context;
6342 icmd = &elsiocb->iocb;
6343 icmd->ulpContext = lcb_context->rx_id;
6344 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
6345 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
6347 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
6348 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
6349 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6351 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)
6352 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
6354 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6355 phba->fc_stat.elsXmitLSRJT++;
6356 elsiocb->context1 = lpfc_nlp_get(ndlp);
6357 if (!elsiocb->context1) {
6358 lpfc_els_free_iocb(phba, elsiocb);
6359 goto free_lcb_context;
6362 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6363 if (rc == IOCB_ERROR) {
6365 lpfc_els_free_iocb(phba, elsiocb);
6372 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
6373 struct lpfc_lcb_context *lcb_context,
6374 uint32_t beacon_state)
6376 struct lpfc_hba *phba = vport->phba;
6377 union lpfc_sli4_cfg_shdr *cfg_shdr;
6378 LPFC_MBOXQ_t *mbox = NULL;
6382 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6386 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
6387 len = sizeof(struct lpfc_mbx_set_beacon_config) -
6388 sizeof(struct lpfc_sli4_cfg_mhdr);
6389 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6390 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
6391 LPFC_SLI4_MBX_EMBED);
6392 mbox->ctx_ndlp = (void *)lcb_context;
6393 mbox->vport = phba->pport;
6394 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
6395 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
6396 phba->sli4_hba.physical_port);
6397 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
6399 mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */
6402 * Check bv1s bit before issuing the mailbox
6403 * if bv1s == 1, LCB V1 supported
6404 * else, LCB V0 supported
6407 if (phba->sli4_hba.pc_sli4_params.bv1s) {
6408 /* COMMON_SET_BEACON_CONFIG_V1 */
6409 cfg_shdr->request.word9 = BEACON_VERSION_V1;
6410 lcb_context->capability |= LCB_CAPABILITY_DURATION;
6411 bf_set(lpfc_mbx_set_beacon_port_type,
6412 &mbox->u.mqe.un.beacon_config, 0);
6413 bf_set(lpfc_mbx_set_beacon_duration_v1,
6414 &mbox->u.mqe.un.beacon_config,
6415 be16_to_cpu(lcb_context->duration));
6417 /* COMMON_SET_BEACON_CONFIG_V0 */
6418 if (be16_to_cpu(lcb_context->duration) != 0) {
6419 mempool_free(mbox, phba->mbox_mem_pool);
6422 cfg_shdr->request.word9 = BEACON_VERSION_V0;
6423 lcb_context->capability &= ~(LCB_CAPABILITY_DURATION);
6424 bf_set(lpfc_mbx_set_beacon_state,
6425 &mbox->u.mqe.un.beacon_config, beacon_state);
6426 bf_set(lpfc_mbx_set_beacon_port_type,
6427 &mbox->u.mqe.un.beacon_config, 1);
6428 bf_set(lpfc_mbx_set_beacon_duration,
6429 &mbox->u.mqe.un.beacon_config,
6430 be16_to_cpu(lcb_context->duration));
6433 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6434 if (rc == MBX_NOT_FINISHED) {
6435 mempool_free(mbox, phba->mbox_mem_pool);
6444 * lpfc_els_rcv_lcb - Process an unsolicited LCB
6445 * @vport: pointer to a host virtual N_Port data structure.
6446 * @cmdiocb: pointer to lpfc command iocb data structure.
6447 * @ndlp: pointer to a node-list data structure.
6449 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
6450 * First, the payload of the unsolicited LCB is checked.
6451 * Then based on Subcommand beacon will either turn on or off.
6454 * 0 - Sent the acc response
6455 * 1 - Sent the reject response.
6458 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6459 struct lpfc_nodelist *ndlp)
6461 struct lpfc_hba *phba = vport->phba;
6462 struct lpfc_dmabuf *pcmd;
6464 struct fc_lcb_request_frame *beacon;
6465 struct lpfc_lcb_context *lcb_context;
6466 u8 state, rjt_err = 0;
6469 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
6470 lp = (uint8_t *)pcmd->virt;
6471 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
6473 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6474 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
6475 "type x%x frequency %x duration x%x\n",
6476 lp[0], lp[1], lp[2],
6477 beacon->lcb_command,
6478 beacon->lcb_sub_command,
6480 beacon->lcb_frequency,
6481 be16_to_cpu(beacon->lcb_duration));
6483 if (beacon->lcb_sub_command != LPFC_LCB_ON &&
6484 beacon->lcb_sub_command != LPFC_LCB_OFF) {
6485 rjt_err = LSRJT_CMD_UNSUPPORTED;
6489 if (phba->sli_rev < LPFC_SLI_REV4 ||
6490 phba->hba_flag & HBA_FCOE_MODE ||
6491 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
6492 LPFC_SLI_INTF_IF_TYPE_2)) {
6493 rjt_err = LSRJT_CMD_UNSUPPORTED;
6497 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
6499 rjt_err = LSRJT_UNABLE_TPC;
6503 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
6504 lcb_context->sub_command = beacon->lcb_sub_command;
6505 lcb_context->capability = 0;
6506 lcb_context->type = beacon->lcb_type;
6507 lcb_context->frequency = beacon->lcb_frequency;
6508 lcb_context->duration = beacon->lcb_duration;
6509 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
6510 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
6511 lcb_context->ndlp = lpfc_nlp_get(ndlp);
6512 if (!lcb_context->ndlp) {
6513 rjt_err = LSRJT_UNABLE_TPC;
6517 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
6518 lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT,
6519 "0193 failed to send mail box");
6522 rjt_err = LSRJT_UNABLE_TPC;
6527 memset(&stat, 0, sizeof(stat));
6528 stat.un.b.lsRjtRsnCode = rjt_err;
6529 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6535 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
6536 * @vport: pointer to a host virtual N_Port data structure.
6538 * This routine cleans up any Registration State Change Notification
6539 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
6540 * @vport together with the host_lock is used to prevent multiple thread
6541 * trying to access the RSCN array on a same @vport at the same time.
6544 lpfc_els_flush_rscn(struct lpfc_vport *vport)
6546 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6547 struct lpfc_hba *phba = vport->phba;
6550 spin_lock_irq(shost->host_lock);
6551 if (vport->fc_rscn_flush) {
6552 /* Another thread is walking fc_rscn_id_list on this vport */
6553 spin_unlock_irq(shost->host_lock);
6556 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
6557 vport->fc_rscn_flush = 1;
6558 spin_unlock_irq(shost->host_lock);
6560 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
6561 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
6562 vport->fc_rscn_id_list[i] = NULL;
6564 spin_lock_irq(shost->host_lock);
6565 vport->fc_rscn_id_cnt = 0;
6566 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
6567 spin_unlock_irq(shost->host_lock);
6568 lpfc_can_disctmo(vport);
6569 /* Indicate we are done walking this fc_rscn_id_list */
6570 vport->fc_rscn_flush = 0;
6574 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
6575 * @vport: pointer to a host virtual N_Port data structure.
6576 * @did: remote destination port identifier.
6578 * This routine checks whether there is any pending Registration State
6579 * Configuration Notification (RSCN) to a @did on @vport.
6582 * None zero - The @did matched with a pending rscn
6583 * 0 - not able to match @did with a pending rscn
6586 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
6591 uint32_t payload_len, i;
6592 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6594 ns_did.un.word = did;
6596 /* Never match fabric nodes for RSCNs */
6597 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
6600 /* If we are doing a FULL RSCN rediscovery, match everything */
6601 if (vport->fc_flag & FC_RSCN_DISCOVERY)
6604 spin_lock_irq(shost->host_lock);
6605 if (vport->fc_rscn_flush) {
6606 /* Another thread is walking fc_rscn_id_list on this vport */
6607 spin_unlock_irq(shost->host_lock);
6610 /* Indicate we are walking fc_rscn_id_list on this vport */
6611 vport->fc_rscn_flush = 1;
6612 spin_unlock_irq(shost->host_lock);
6613 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
6614 lp = vport->fc_rscn_id_list[i]->virt;
6615 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
6616 payload_len -= sizeof(uint32_t); /* take off word 0 */
6617 while (payload_len) {
6618 rscn_did.un.word = be32_to_cpu(*lp++);
6619 payload_len -= sizeof(uint32_t);
6620 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
6621 case RSCN_ADDRESS_FORMAT_PORT:
6622 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
6623 && (ns_did.un.b.area == rscn_did.un.b.area)
6624 && (ns_did.un.b.id == rscn_did.un.b.id))
6625 goto return_did_out;
6627 case RSCN_ADDRESS_FORMAT_AREA:
6628 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
6629 && (ns_did.un.b.area == rscn_did.un.b.area))
6630 goto return_did_out;
6632 case RSCN_ADDRESS_FORMAT_DOMAIN:
6633 if (ns_did.un.b.domain == rscn_did.un.b.domain)
6634 goto return_did_out;
6636 case RSCN_ADDRESS_FORMAT_FABRIC:
6637 goto return_did_out;
6641 /* Indicate we are done with walking fc_rscn_id_list on this vport */
6642 vport->fc_rscn_flush = 0;
6645 /* Indicate we are done with walking fc_rscn_id_list on this vport */
6646 vport->fc_rscn_flush = 0;
6651 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
6652 * @vport: pointer to a host virtual N_Port data structure.
6654 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
6655 * state machine for a @vport's nodes that are with pending RSCN (Registration
6656 * State Change Notification).
6659 * 0 - Successful (currently alway return 0)
6662 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
6664 struct lpfc_nodelist *ndlp = NULL;
6666 /* Move all affected nodes by pending RSCNs to NPR state. */
6667 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
6668 if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
6669 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
6672 /* NVME Target mode does not do RSCN Recovery. */
6673 if (vport->phba->nvmet_support)
6676 /* If we are in the process of doing discovery on this
6677 * NPort, let it continue on its own.
6679 switch (ndlp->nlp_state) {
6680 case NLP_STE_PLOGI_ISSUE:
6681 case NLP_STE_ADISC_ISSUE:
6682 case NLP_STE_REG_LOGIN_ISSUE:
6683 case NLP_STE_PRLI_ISSUE:
6684 case NLP_STE_LOGO_ISSUE:
6688 /* Check to see if we need to NVME rescan this target
6691 if (ndlp->nlp_fc4_type & NLP_FC4_NVME &&
6692 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY))
6693 lpfc_nvme_rescan_port(vport, ndlp);
6695 lpfc_disc_state_machine(vport, ndlp, NULL,
6696 NLP_EVT_DEVICE_RECOVERY);
6697 lpfc_cancel_retry_delay_tmo(vport, ndlp);
6703 * lpfc_send_rscn_event - Send an RSCN event to management application
6704 * @vport: pointer to a host virtual N_Port data structure.
6705 * @cmdiocb: pointer to lpfc command iocb data structure.
6707 * lpfc_send_rscn_event sends an RSCN netlink event to management
6711 lpfc_send_rscn_event(struct lpfc_vport *vport,
6712 struct lpfc_iocbq *cmdiocb)
6714 struct lpfc_dmabuf *pcmd;
6715 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6716 uint32_t *payload_ptr;
6717 uint32_t payload_len;
6718 struct lpfc_rscn_event_header *rscn_event_data;
6720 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6721 payload_ptr = (uint32_t *) pcmd->virt;
6722 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
6724 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
6725 payload_len, GFP_KERNEL);
6726 if (!rscn_event_data) {
6727 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
6728 "0147 Failed to allocate memory for RSCN event\n");
6731 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
6732 rscn_event_data->payload_length = payload_len;
6733 memcpy(rscn_event_data->rscn_payload, payload_ptr,
6736 fc_host_post_vendor_event(shost,
6737 fc_get_event_number(),
6738 sizeof(struct lpfc_rscn_event_header) + payload_len,
6739 (char *)rscn_event_data,
6742 kfree(rscn_event_data);
6746 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
6747 * @vport: pointer to a host virtual N_Port data structure.
6748 * @cmdiocb: pointer to lpfc command iocb data structure.
6749 * @ndlp: pointer to a node-list data structure.
6751 * This routine processes an unsolicited RSCN (Registration State Change
6752 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
6753 * to invoke fc_host_post_event() routine to the FC transport layer. If the
6754 * discover state machine is about to begin discovery, it just accepts the
6755 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
6756 * contains N_Port IDs for other vports on this HBA, it just accepts the
6757 * RSCN and ignore processing it. If the state machine is in the recovery
6758 * state, the fc_rscn_id_list of this @vport is walked and the
6759 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
6760 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
6761 * routine is invoked to handle the RSCN event.
6764 * 0 - Just sent the acc response
6765 * 1 - Sent the acc response and waited for name server completion
6768 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6769 struct lpfc_nodelist *ndlp)
6771 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6772 struct lpfc_hba *phba = vport->phba;
6773 struct lpfc_dmabuf *pcmd;
6774 uint32_t *lp, *datap;
6775 uint32_t payload_len, length, nportid, *cmd;
6777 int rscn_id = 0, hba_id = 0;
6780 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6781 lp = (uint32_t *) pcmd->virt;
6783 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
6784 payload_len -= sizeof(uint32_t); /* take off word 0 */
6786 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6787 "0214 RSCN received Data: x%x x%x x%x x%x\n",
6788 vport->fc_flag, payload_len, *lp,
6789 vport->fc_rscn_id_cnt);
6791 /* Send an RSCN event to the management application */
6792 lpfc_send_rscn_event(vport, cmdiocb);
6794 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
6795 fc_host_post_event(shost, fc_get_event_number(),
6796 FCH_EVT_RSCN, lp[i]);
6798 /* Check if RSCN is coming from a direct-connected remote NPort */
6799 if (vport->fc_flag & FC_PT2PT) {
6800 /* If so, just ACC it, no other action needed for now */
6801 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6802 "2024 pt2pt RSCN %08x Data: x%x x%x\n",
6803 *lp, vport->fc_flag, payload_len);
6804 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6806 /* Check to see if we need to NVME rescan this target
6809 if (ndlp->nlp_fc4_type & NLP_FC4_NVME &&
6810 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY))
6811 lpfc_nvme_rescan_port(vport, ndlp);
6815 /* If we are about to begin discovery, just ACC the RSCN.
6816 * Discovery processing will satisfy it.
6818 if (vport->port_state <= LPFC_NS_QRY) {
6819 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6820 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
6821 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6823 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6827 /* If this RSCN just contains NPortIDs for other vports on this HBA,
6828 * just ACC and ignore it.
6830 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
6831 !(vport->cfg_peer_port_login)) {
6836 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
6837 i -= sizeof(uint32_t);
6839 if (lpfc_find_vport_by_did(phba, nportid))
6842 if (rscn_id == hba_id) {
6843 /* ALL NPortIDs in RSCN are on HBA */
6844 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6846 "Data: x%x x%x x%x x%x\n",
6847 vport->fc_flag, payload_len,
6848 *lp, vport->fc_rscn_id_cnt);
6849 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6850 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
6851 ndlp->nlp_DID, vport->port_state,
6854 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
6860 spin_lock_irq(shost->host_lock);
6861 if (vport->fc_rscn_flush) {
6862 /* Another thread is walking fc_rscn_id_list on this vport */
6863 vport->fc_flag |= FC_RSCN_DISCOVERY;
6864 spin_unlock_irq(shost->host_lock);
6866 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6869 /* Indicate we are walking fc_rscn_id_list on this vport */
6870 vport->fc_rscn_flush = 1;
6871 spin_unlock_irq(shost->host_lock);
6872 /* Get the array count after successfully have the token */
6873 rscn_cnt = vport->fc_rscn_id_cnt;
6874 /* If we are already processing an RSCN, save the received
6875 * RSCN payload buffer, cmdiocb->context2 to process later.
6877 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
6878 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6879 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
6880 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6882 spin_lock_irq(shost->host_lock);
6883 vport->fc_flag |= FC_RSCN_DEFERRED;
6885 /* Restart disctmo if its already running */
6886 if (vport->fc_flag & FC_DISC_TMO) {
6887 tmo = ((phba->fc_ratov * 3) + 3);
6888 mod_timer(&vport->fc_disctmo,
6889 jiffies + msecs_to_jiffies(1000 * tmo));
6891 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
6892 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
6893 vport->fc_flag |= FC_RSCN_MODE;
6894 spin_unlock_irq(shost->host_lock);
6896 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
6897 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
6900 (payload_len + length <= LPFC_BPL_SIZE)) {
6901 *cmd &= ELS_CMD_MASK;
6902 *cmd |= cpu_to_be32(payload_len + length);
6903 memcpy(((uint8_t *)cmd) + length, lp,
6906 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
6907 vport->fc_rscn_id_cnt++;
6908 /* If we zero, cmdiocb->context2, the calling
6909 * routine will not try to free it.
6911 cmdiocb->context2 = NULL;
6914 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6915 "0235 Deferred RSCN "
6916 "Data: x%x x%x x%x\n",
6917 vport->fc_rscn_id_cnt, vport->fc_flag,
6920 vport->fc_flag |= FC_RSCN_DISCOVERY;
6921 spin_unlock_irq(shost->host_lock);
6922 /* ReDiscovery RSCN */
6923 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6924 "0234 ReDiscovery RSCN "
6925 "Data: x%x x%x x%x\n",
6926 vport->fc_rscn_id_cnt, vport->fc_flag,
6929 /* Indicate we are done walking fc_rscn_id_list on this vport */
6930 vport->fc_rscn_flush = 0;
6932 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6933 /* send RECOVERY event for ALL nodes that match RSCN payload */
6934 lpfc_rscn_recovery_check(vport);
6937 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6938 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
6939 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6941 spin_lock_irq(shost->host_lock);
6942 vport->fc_flag |= FC_RSCN_MODE;
6943 spin_unlock_irq(shost->host_lock);
6944 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
6945 /* Indicate we are done walking fc_rscn_id_list on this vport */
6946 vport->fc_rscn_flush = 0;
6948 * If we zero, cmdiocb->context2, the calling routine will
6949 * not try to free it.
6951 cmdiocb->context2 = NULL;
6952 lpfc_set_disctmo(vport);
6954 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6955 /* send RECOVERY event for ALL nodes that match RSCN payload */
6956 lpfc_rscn_recovery_check(vport);
6957 return lpfc_els_handle_rscn(vport);
6961 * lpfc_els_handle_rscn - Handle rscn for a vport
6962 * @vport: pointer to a host virtual N_Port data structure.
6964 * This routine handles the Registration State Configuration Notification
6965 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
6966 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
6967 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
6968 * NameServer shall be issued. If CT command to the NameServer fails to be
6969 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
6970 * RSCN activities with the @vport.
6973 * 0 - Cleaned up rscn on the @vport
6974 * 1 - Wait for plogi to name server before proceed
6977 lpfc_els_handle_rscn(struct lpfc_vport *vport)
6979 struct lpfc_nodelist *ndlp;
6980 struct lpfc_hba *phba = vport->phba;
6982 /* Ignore RSCN if the port is being torn down. */
6983 if (vport->load_flag & FC_UNLOADING) {
6984 lpfc_els_flush_rscn(vport);
6988 /* Start timer for RSCN processing */
6989 lpfc_set_disctmo(vport);
6991 /* RSCN processed */
6992 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6993 "0215 RSCN processed Data: x%x x%x x%x x%x x%x x%x\n",
6994 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
6995 vport->port_state, vport->num_disc_nodes,
6998 /* To process RSCN, first compare RSCN data with NameServer */
6999 vport->fc_ns_retry = 0;
7000 vport->num_disc_nodes = 0;
7002 ndlp = lpfc_findnode_did(vport, NameServer_DID);
7003 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
7004 /* Good ndlp, issue CT Request to NameServer. Need to
7005 * know how many gidfts were issued. If none, then just
7006 * flush the RSCN. Otherwise, the outstanding requests
7009 if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) {
7010 if (lpfc_issue_gidft(vport) > 0)
7012 } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) {
7013 if (lpfc_issue_gidpt(vport) > 0)
7019 /* Nameserver login in question. Revalidate. */
7021 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
7022 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
7024 ndlp = lpfc_nlp_init(vport, NameServer_DID);
7026 lpfc_els_flush_rscn(vport);
7029 ndlp->nlp_prev_state = ndlp->nlp_state;
7030 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
7032 ndlp->nlp_type |= NLP_FABRIC;
7033 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
7034 /* Wait for NameServer login cmpl before we can
7040 lpfc_els_flush_rscn(vport);
7045 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
7046 * @vport: pointer to a host virtual N_Port data structure.
7047 * @cmdiocb: pointer to lpfc command iocb data structure.
7048 * @ndlp: pointer to a node-list data structure.
7050 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
7051 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
7052 * point topology. As an unsolicited FLOGI should not be received in a loop
7053 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
7054 * lpfc_check_sparm() routine is invoked to check the parameters in the
7055 * unsolicited FLOGI. If parameters validation failed, the routine
7056 * lpfc_els_rsp_reject() shall be called with reject reason code set to
7057 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
7058 * FLOGI shall be compared with the Port WWN of the @vport to determine who
7059 * will initiate PLOGI. The higher lexicographical value party shall has
7060 * higher priority (as the winning port) and will initiate PLOGI and
7061 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
7062 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
7063 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
7066 * 0 - Successfully processed the unsolicited flogi
7067 * 1 - Failed to process the unsolicited flogi
7070 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7071 struct lpfc_nodelist *ndlp)
7073 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7074 struct lpfc_hba *phba = vport->phba;
7075 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7076 uint32_t *lp = (uint32_t *) pcmd->virt;
7077 IOCB_t *icmd = &cmdiocb->iocb;
7078 struct serv_parm *sp;
7082 uint32_t fc_flag = 0;
7083 uint32_t port_state = 0;
7086 sp = (struct serv_parm *) lp;
7088 /* FLOGI received */
7090 lpfc_set_disctmo(vport);
7092 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7093 /* We should never receive a FLOGI in loop mode, ignore it */
7094 did = icmd->un.elsreq64.remoteID;
7096 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
7098 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
7099 "0113 An FLOGI ELS command x%x was "
7100 "received from DID x%x in Loop Mode\n",
7105 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
7108 * If our portname is greater than the remote portname,
7109 * then we initiate Nport login.
7112 rc = memcmp(&vport->fc_portname, &sp->portName,
7113 sizeof(struct lpfc_name));
7116 if (phba->sli_rev < LPFC_SLI_REV4) {
7117 mbox = mempool_alloc(phba->mbox_mem_pool,
7121 lpfc_linkdown(phba);
7122 lpfc_init_link(phba, mbox,
7124 phba->cfg_link_speed);
7125 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
7126 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
7127 mbox->vport = vport;
7128 rc = lpfc_sli_issue_mbox(phba, mbox,
7130 lpfc_set_loopback_flag(phba);
7131 if (rc == MBX_NOT_FINISHED)
7132 mempool_free(mbox, phba->mbox_mem_pool);
7136 /* abort the flogi coming back to ourselves
7137 * due to external loopback on the port.
7139 lpfc_els_abort_flogi(phba);
7142 } else if (rc > 0) { /* greater than */
7143 spin_lock_irq(shost->host_lock);
7144 vport->fc_flag |= FC_PT2PT_PLOGI;
7145 spin_unlock_irq(shost->host_lock);
7147 /* If we have the high WWPN we can assign our own
7148 * myDID; otherwise, we have to WAIT for a PLOGI
7149 * from the remote NPort to find out what it
7152 vport->fc_myDID = PT2PT_LocalID;
7154 vport->fc_myDID = PT2PT_RemoteID;
7158 * The vport state should go to LPFC_FLOGI only
7159 * AFTER we issue a FLOGI, not receive one.
7161 spin_lock_irq(shost->host_lock);
7162 fc_flag = vport->fc_flag;
7163 port_state = vport->port_state;
7164 vport->fc_flag |= FC_PT2PT;
7165 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
7167 /* Acking an unsol FLOGI. Count 1 for link bounce
7170 vport->rcv_flogi_cnt++;
7171 spin_unlock_irq(shost->host_lock);
7172 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7173 "3311 Rcv Flogi PS x%x new PS x%x "
7174 "fc_flag x%x new fc_flag x%x\n",
7175 port_state, vport->port_state,
7176 fc_flag, vport->fc_flag);
7179 * We temporarily set fc_myDID to make it look like we are
7180 * a Fabric. This is done just so we end up with the right
7181 * did / sid on the FLOGI ACC rsp.
7183 did = vport->fc_myDID;
7184 vport->fc_myDID = Fabric_DID;
7186 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
7188 /* Defer ACC response until AFTER we issue a FLOGI */
7189 if (!(phba->hba_flag & HBA_FLOGI_ISSUED)) {
7190 phba->defer_flogi_acc_rx_id = cmdiocb->iocb.ulpContext;
7191 phba->defer_flogi_acc_ox_id =
7192 cmdiocb->iocb.unsli3.rcvsli3.ox_id;
7194 vport->fc_myDID = did;
7196 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7197 "3344 Deferring FLOGI ACC: rx_id: x%x,"
7198 " ox_id: x%x, hba_flag x%x\n",
7199 phba->defer_flogi_acc_rx_id,
7200 phba->defer_flogi_acc_ox_id, phba->hba_flag);
7202 phba->defer_flogi_acc_flag = true;
7208 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
7210 /* Now lets put fc_myDID back to what its supposed to be */
7211 vport->fc_myDID = did;
7217 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
7218 * @vport: pointer to a host virtual N_Port data structure.
7219 * @cmdiocb: pointer to lpfc command iocb data structure.
7220 * @ndlp: pointer to a node-list data structure.
7222 * This routine processes Request Node Identification Data (RNID) IOCB
7223 * received as an ELS unsolicited event. Only when the RNID specified format
7224 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
7225 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
7226 * Accept (ACC) the RNID ELS command. All the other RNID formats are
7227 * rejected by invoking the lpfc_els_rsp_reject() routine.
7230 * 0 - Successfully processed rnid iocb (currently always return 0)
7233 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7234 struct lpfc_nodelist *ndlp)
7236 struct lpfc_dmabuf *pcmd;
7241 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7242 lp = (uint32_t *) pcmd->virt;
7249 switch (rn->Format) {
7251 case RNID_TOPOLOGY_DISC:
7253 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
7256 /* Reject this request because format not supported */
7257 stat.un.b.lsRjtRsvd0 = 0;
7258 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7259 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7260 stat.un.b.vendorUnique = 0;
7261 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
7268 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
7269 * @vport: pointer to a host virtual N_Port data structure.
7270 * @cmdiocb: pointer to lpfc command iocb data structure.
7271 * @ndlp: pointer to a node-list data structure.
7274 * 0 - Successfully processed echo iocb (currently always return 0)
7277 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7278 struct lpfc_nodelist *ndlp)
7282 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
7284 /* skip over first word of echo command to find echo data */
7285 pcmd += sizeof(uint32_t);
7287 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
7292 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
7293 * @vport: pointer to a host virtual N_Port data structure.
7294 * @cmdiocb: pointer to lpfc command iocb data structure.
7295 * @ndlp: pointer to a node-list data structure.
7297 * This routine processes a Link Incident Report Registration(LIRR) IOCB
7298 * received as an ELS unsolicited event. Currently, this function just invokes
7299 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
7302 * 0 - Successfully processed lirr iocb (currently always return 0)
7305 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7306 struct lpfc_nodelist *ndlp)
7310 /* For now, unconditionally reject this command */
7311 stat.un.b.lsRjtRsvd0 = 0;
7312 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7313 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7314 stat.un.b.vendorUnique = 0;
7315 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7320 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
7321 * @vport: pointer to a host virtual N_Port data structure.
7322 * @cmdiocb: pointer to lpfc command iocb data structure.
7323 * @ndlp: pointer to a node-list data structure.
7325 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
7326 * received as an ELS unsolicited event. A request to RRQ shall only
7327 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
7328 * Nx_Port N_Port_ID of the target Exchange is the same as the
7329 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
7330 * not accepted, an LS_RJT with reason code "Unable to perform
7331 * command request" and reason code explanation "Invalid Originator
7332 * S_ID" shall be returned. For now, we just unconditionally accept
7333 * RRQ from the target.
7336 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7337 struct lpfc_nodelist *ndlp)
7339 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
7340 if (vport->phba->sli_rev == LPFC_SLI_REV4)
7341 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
7345 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
7346 * @phba: pointer to lpfc hba data structure.
7347 * @pmb: pointer to the driver internal queue element for mailbox command.
7349 * This routine is the completion callback function for the MBX_READ_LNK_STAT
7350 * mailbox command. This callback function is to actually send the Accept
7351 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
7352 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
7353 * mailbox command, constructs the RPS response with the link statistics
7354 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
7355 * response to the RPS.
7357 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7358 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7359 * will be stored into the context1 field of the IOCB for the completion
7360 * callback function to the RPS Accept Response ELS IOCB command.
7364 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7369 struct RLS_RSP *rls_rsp;
7371 struct lpfc_iocbq *elsiocb;
7372 struct lpfc_nodelist *ndlp;
7379 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
7380 rxid = (uint16_t)((unsigned long)(pmb->ctx_buf) & 0xffff);
7381 oxid = (uint16_t)(((unsigned long)(pmb->ctx_buf) >> 16) & 0xffff);
7382 pmb->ctx_buf = NULL;
7383 pmb->ctx_ndlp = NULL;
7385 if (mb->mbxStatus) {
7386 mempool_free(pmb, phba->mbox_mem_pool);
7390 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
7391 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
7392 lpfc_max_els_tries, ndlp,
7393 ndlp->nlp_DID, ELS_CMD_ACC);
7395 /* Decrement the ndlp reference count from previous mbox command */
7399 mempool_free(pmb, phba->mbox_mem_pool);
7403 icmd = &elsiocb->iocb;
7404 icmd->ulpContext = rxid;
7405 icmd->unsli3.rcvsli3.ox_id = oxid;
7407 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7408 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
7409 pcmd += sizeof(uint32_t); /* Skip past command */
7410 rls_rsp = (struct RLS_RSP *)pcmd;
7412 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
7413 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
7414 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
7415 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
7416 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
7417 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
7418 mempool_free(pmb, phba->mbox_mem_pool);
7419 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
7420 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
7421 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
7422 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
7423 elsiocb->iotag, elsiocb->iocb.ulpContext,
7424 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
7426 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
7427 phba->fc_stat.elsXmitACC++;
7428 elsiocb->context1 = lpfc_nlp_get(ndlp);
7429 if (!elsiocb->context1)
7432 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7433 if (rc == IOCB_ERROR)
7440 lpfc_els_free_iocb(phba, elsiocb);
7444 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
7445 * @vport: pointer to a host virtual N_Port data structure.
7446 * @cmdiocb: pointer to lpfc command iocb data structure.
7447 * @ndlp: pointer to a node-list data structure.
7449 * This routine processes Read Link Status (RLS) IOCB received as an
7450 * ELS unsolicited event. It first checks the remote port state. If the
7451 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
7452 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
7453 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
7454 * for reading the HBA link statistics. It is for the callback function,
7455 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
7456 * to actually sending out RPL Accept (ACC) response.
7459 * 0 - Successfully processed rls iocb (currently always return 0)
7462 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7463 struct lpfc_nodelist *ndlp)
7465 struct lpfc_hba *phba = vport->phba;
7469 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
7470 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
7471 /* reject the unsolicited RLS request and done with it */
7474 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
7476 lpfc_read_lnk_stat(phba, mbox);
7477 mbox->ctx_buf = (void *)((unsigned long)
7478 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
7479 cmdiocb->iocb.ulpContext)); /* rx_id */
7480 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
7481 if (!mbox->ctx_ndlp)
7483 mbox->vport = vport;
7484 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
7485 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
7486 != MBX_NOT_FINISHED)
7487 /* Mbox completion will send ELS Response */
7489 /* Decrement reference count used for the failed mbox
7494 mempool_free(mbox, phba->mbox_mem_pool);
7497 /* issue rejection response */
7498 stat.un.b.lsRjtRsvd0 = 0;
7499 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7500 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7501 stat.un.b.vendorUnique = 0;
7502 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7507 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
7508 * @vport: pointer to a host virtual N_Port data structure.
7509 * @cmdiocb: pointer to lpfc command iocb data structure.
7510 * @ndlp: pointer to a node-list data structure.
7512 * This routine processes Read Timout Value (RTV) IOCB received as an
7513 * ELS unsolicited event. It first checks the remote port state. If the
7514 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
7515 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
7516 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
7517 * Value (RTV) unsolicited IOCB event.
7519 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7520 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7521 * will be stored into the context1 field of the IOCB for the completion
7522 * callback function to the RTV Accept Response ELS IOCB command.
7525 * 0 - Successfully processed rtv iocb (currently always return 0)
7528 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7529 struct lpfc_nodelist *ndlp)
7532 struct lpfc_hba *phba = vport->phba;
7534 struct RTV_RSP *rtv_rsp;
7536 struct lpfc_iocbq *elsiocb;
7540 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
7541 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
7542 /* reject the unsolicited RTV request and done with it */
7545 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
7546 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
7547 lpfc_max_els_tries, ndlp,
7548 ndlp->nlp_DID, ELS_CMD_ACC);
7553 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7554 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
7555 pcmd += sizeof(uint32_t); /* Skip past command */
7557 /* use the command's xri in the response */
7558 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
7559 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
7561 rtv_rsp = (struct RTV_RSP *)pcmd;
7563 /* populate RTV payload */
7564 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
7565 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
7566 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
7567 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
7568 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
7570 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
7571 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
7572 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
7573 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
7574 "Data: x%x x%x x%x\n",
7575 elsiocb->iotag, elsiocb->iocb.ulpContext,
7576 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
7578 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
7579 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
7580 phba->fc_stat.elsXmitACC++;
7581 elsiocb->context1 = lpfc_nlp_get(ndlp);
7582 if (!elsiocb->context1) {
7583 lpfc_els_free_iocb(phba, elsiocb);
7587 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7588 if (rc == IOCB_ERROR) {
7590 lpfc_els_free_iocb(phba, elsiocb);
7595 /* issue rejection response */
7596 stat.un.b.lsRjtRsvd0 = 0;
7597 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7598 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7599 stat.un.b.vendorUnique = 0;
7600 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7604 /* lpfc_issue_els_rrq - Process an unsolicited rrq iocb
7605 * @vport: pointer to a host virtual N_Port data structure.
7606 * @ndlp: pointer to a node-list data structure.
7607 * @did: DID of the target.
7608 * @rrq: Pointer to the rrq struct.
7610 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
7611 * Successful the the completion handler will clear the RRQ.
7614 * 0 - Successfully sent rrq els iocb.
7615 * 1 - Failed to send rrq els iocb.
7618 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
7619 uint32_t did, struct lpfc_node_rrq *rrq)
7621 struct lpfc_hba *phba = vport->phba;
7622 struct RRQ *els_rrq;
7623 struct lpfc_iocbq *elsiocb;
7629 if (ndlp != rrq->ndlp)
7634 /* If ndlp is not NULL, we will bump the reference count on it */
7635 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
7636 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
7641 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7643 /* For RRQ request, remainder of payload is Exchange IDs */
7644 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
7645 pcmd += sizeof(uint32_t);
7646 els_rrq = (struct RRQ *) pcmd;
7648 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
7649 bf_set(rrq_rxid, els_rrq, rrq->rxid);
7650 bf_set(rrq_did, els_rrq, vport->fc_myDID);
7651 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
7652 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
7655 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
7656 "Issue RRQ: did:x%x",
7657 did, rrq->xritag, rrq->rxid);
7658 elsiocb->context_un.rrq = rrq;
7659 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
7660 elsiocb->context1 = lpfc_nlp_get(ndlp);
7661 if (!elsiocb->context1)
7664 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7665 if (ret == IOCB_ERROR)
7672 lpfc_els_free_iocb(phba, elsiocb);
7677 * lpfc_send_rrq - Sends ELS RRQ if needed.
7678 * @phba: pointer to lpfc hba data structure.
7679 * @rrq: pointer to the active rrq.
7681 * This routine will call the lpfc_issue_els_rrq if the rrq is
7682 * still active for the xri. If this function returns a failure then
7683 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
7685 * Returns 0 Success.
7689 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
7691 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
7696 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
7697 return lpfc_issue_els_rrq(rrq->vport, ndlp,
7704 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
7705 * @vport: pointer to a host virtual N_Port data structure.
7706 * @cmdsize: size of the ELS command.
7707 * @oldiocb: pointer to the original lpfc command iocb data structure.
7708 * @ndlp: pointer to a node-list data structure.
7710 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
7711 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
7713 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7714 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7715 * will be stored into the context1 field of the IOCB for the completion
7716 * callback function to the RPL Accept Response ELS command.
7719 * 0 - Successfully issued ACC RPL ELS command
7720 * 1 - Failed to issue ACC RPL ELS command
7723 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
7724 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
7727 struct lpfc_hba *phba = vport->phba;
7728 IOCB_t *icmd, *oldcmd;
7730 struct lpfc_iocbq *elsiocb;
7733 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
7734 ndlp->nlp_DID, ELS_CMD_ACC);
7739 icmd = &elsiocb->iocb;
7740 oldcmd = &oldiocb->iocb;
7741 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
7742 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
7744 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7745 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
7746 pcmd += sizeof(uint16_t);
7747 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
7748 pcmd += sizeof(uint16_t);
7750 /* Setup the RPL ACC payload */
7751 rpl_rsp.listLen = be32_to_cpu(1);
7753 rpl_rsp.port_num_blk.portNum = 0;
7754 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
7755 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
7756 sizeof(struct lpfc_name));
7757 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
7758 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
7759 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7760 "0120 Xmit ELS RPL ACC response tag x%x "
7761 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
7763 elsiocb->iotag, elsiocb->iocb.ulpContext,
7764 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
7766 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
7767 phba->fc_stat.elsXmitACC++;
7768 elsiocb->context1 = lpfc_nlp_get(ndlp);
7769 if (!elsiocb->context1)
7772 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7773 if (rc == IOCB_ERROR)
7780 lpfc_els_free_iocb(phba, elsiocb);
7785 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
7786 * @vport: pointer to a host virtual N_Port data structure.
7787 * @cmdiocb: pointer to lpfc command iocb data structure.
7788 * @ndlp: pointer to a node-list data structure.
7790 * This routine processes Read Port List (RPL) IOCB received as an ELS
7791 * unsolicited event. It first checks the remote port state. If the remote
7792 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
7793 * invokes the lpfc_els_rsp_reject() routine to send reject response.
7794 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
7795 * to accept the RPL.
7798 * 0 - Successfully processed rpl iocb (currently always return 0)
7801 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7802 struct lpfc_nodelist *ndlp)
7804 struct lpfc_dmabuf *pcmd;
7811 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
7812 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
7813 /* issue rejection response */
7814 stat.un.b.lsRjtRsvd0 = 0;
7815 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7816 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7817 stat.un.b.vendorUnique = 0;
7818 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
7820 /* rejected the unsolicited RPL request and done with it */
7824 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7825 lp = (uint32_t *) pcmd->virt;
7826 rpl = (RPL *) (lp + 1);
7827 maxsize = be32_to_cpu(rpl->maxsize);
7829 /* We support only one port */
7830 if ((rpl->index == 0) &&
7832 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
7833 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
7835 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
7837 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
7843 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
7844 * @vport: pointer to a virtual N_Port data structure.
7845 * @cmdiocb: pointer to lpfc command iocb data structure.
7846 * @ndlp: pointer to a node-list data structure.
7848 * This routine processes Fibre Channel Address Resolution Protocol
7849 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
7850 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
7851 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
7852 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
7853 * remote PortName is compared against the FC PortName stored in the @vport
7854 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
7855 * compared against the FC NodeName stored in the @vport data structure.
7856 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
7857 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
7858 * invoked to send out FARP Response to the remote node. Before sending the
7859 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
7860 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
7861 * routine is invoked to log into the remote port first.
7864 * 0 - Either the FARP Match Mode not supported or successfully processed
7867 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7868 struct lpfc_nodelist *ndlp)
7870 struct lpfc_dmabuf *pcmd;
7876 icmd = &cmdiocb->iocb;
7877 did = icmd->un.elsreq64.remoteID;
7878 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7879 lp = (uint32_t *) pcmd->virt;
7883 /* FARP-REQ received from DID <did> */
7884 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7885 "0601 FARP-REQ received from DID x%x\n", did);
7886 /* We will only support match on WWPN or WWNN */
7887 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
7892 /* If this FARP command is searching for my portname */
7893 if (fp->Mflags & FARP_MATCH_PORT) {
7894 if (memcmp(&fp->RportName, &vport->fc_portname,
7895 sizeof(struct lpfc_name)) == 0)
7899 /* If this FARP command is searching for my nodename */
7900 if (fp->Mflags & FARP_MATCH_NODE) {
7901 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
7902 sizeof(struct lpfc_name)) == 0)
7907 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
7908 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
7909 /* Log back into the node before sending the FARP. */
7910 if (fp->Rflags & FARP_REQUEST_PLOGI) {
7911 ndlp->nlp_prev_state = ndlp->nlp_state;
7912 lpfc_nlp_set_state(vport, ndlp,
7913 NLP_STE_PLOGI_ISSUE);
7914 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
7917 /* Send a FARP response to that node */
7918 if (fp->Rflags & FARP_REQUEST_FARPR)
7919 lpfc_issue_els_farpr(vport, did, 0);
7926 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
7927 * @vport: pointer to a host virtual N_Port data structure.
7928 * @cmdiocb: pointer to lpfc command iocb data structure.
7929 * @ndlp: pointer to a node-list data structure.
7931 * This routine processes Fibre Channel Address Resolution Protocol
7932 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
7933 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
7934 * the FARP response request.
7937 * 0 - Successfully processed FARPR IOCB (currently always return 0)
7940 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7941 struct lpfc_nodelist *ndlp)
7943 struct lpfc_dmabuf *pcmd;
7948 icmd = &cmdiocb->iocb;
7949 did = icmd->un.elsreq64.remoteID;
7950 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7951 lp = (uint32_t *) pcmd->virt;
7954 /* FARP-RSP received from DID <did> */
7955 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7956 "0600 FARP-RSP received from DID x%x\n", did);
7957 /* ACCEPT the Farp resp request */
7958 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
7964 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
7965 * @vport: pointer to a host virtual N_Port data structure.
7966 * @cmdiocb: pointer to lpfc command iocb data structure.
7967 * @fan_ndlp: pointer to a node-list data structure.
7969 * This routine processes a Fabric Address Notification (FAN) IOCB
7970 * command received as an ELS unsolicited event. The FAN ELS command will
7971 * only be processed on a physical port (i.e., the @vport represents the
7972 * physical port). The fabric NodeName and PortName from the FAN IOCB are
7973 * compared against those in the phba data structure. If any of those is
7974 * different, the lpfc_initial_flogi() routine is invoked to initialize
7975 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
7976 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
7977 * is invoked to register login to the fabric.
7980 * 0 - Successfully processed fan iocb (currently always return 0).
7983 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7984 struct lpfc_nodelist *fan_ndlp)
7986 struct lpfc_hba *phba = vport->phba;
7990 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
7991 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
7993 /* FAN received; Fan does not have a reply sequence */
7994 if ((vport == phba->pport) &&
7995 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
7996 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
7997 sizeof(struct lpfc_name))) ||
7998 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
7999 sizeof(struct lpfc_name)))) {
8000 /* This port has switched fabrics. FLOGI is required */
8001 lpfc_issue_init_vfi(vport);
8003 /* FAN verified - skip FLOGI */
8004 vport->fc_myDID = vport->fc_prevDID;
8005 if (phba->sli_rev < LPFC_SLI_REV4)
8006 lpfc_issue_fabric_reglogin(vport);
8008 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8009 "3138 Need register VFI: (x%x/%x)\n",
8010 vport->fc_prevDID, vport->fc_myDID);
8011 lpfc_issue_reg_vfi(vport);
8019 * lpfc_els_timeout - Handler funciton to the els timer
8020 * @t: timer context used to obtain the vport.
8022 * This routine is invoked by the ELS timer after timeout. It posts the ELS
8023 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
8024 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
8025 * up the worker thread. It is for the worker thread to invoke the routine
8026 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
8029 lpfc_els_timeout(struct timer_list *t)
8031 struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc);
8032 struct lpfc_hba *phba = vport->phba;
8033 uint32_t tmo_posted;
8034 unsigned long iflag;
8036 spin_lock_irqsave(&vport->work_port_lock, iflag);
8037 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
8038 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
8039 vport->work_port_events |= WORKER_ELS_TMO;
8040 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
8042 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
8043 lpfc_worker_wake_up(phba);
8049 * lpfc_els_timeout_handler - Process an els timeout event
8050 * @vport: pointer to a virtual N_Port data structure.
8052 * This routine is the actual handler function that processes an ELS timeout
8053 * event. It walks the ELS ring to get and abort all the IOCBs (except the
8054 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
8055 * invoking the lpfc_sli_issue_abort_iotag() routine.
8058 lpfc_els_timeout_handler(struct lpfc_vport *vport)
8060 struct lpfc_hba *phba = vport->phba;
8061 struct lpfc_sli_ring *pring;
8062 struct lpfc_iocbq *tmp_iocb, *piocb;
8064 struct lpfc_dmabuf *pcmd;
8065 uint32_t els_command = 0;
8067 uint32_t remote_ID = 0xffffffff;
8068 LIST_HEAD(abort_list);
8071 timeout = (uint32_t)(phba->fc_ratov << 1);
8073 pring = lpfc_phba_elsring(phba);
8074 if (unlikely(!pring))
8077 if (phba->pport->load_flag & FC_UNLOADING)
8080 spin_lock_irq(&phba->hbalock);
8081 if (phba->sli_rev == LPFC_SLI_REV4)
8082 spin_lock(&pring->ring_lock);
8084 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
8087 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
8088 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8089 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8092 if (piocb->vport != vport)
8095 pcmd = (struct lpfc_dmabuf *) piocb->context2;
8097 els_command = *(uint32_t *) (pcmd->virt);
8099 if (els_command == ELS_CMD_FARP ||
8100 els_command == ELS_CMD_FARPR ||
8101 els_command == ELS_CMD_FDISC)
8104 if (piocb->drvrTimeout > 0) {
8105 if (piocb->drvrTimeout >= timeout)
8106 piocb->drvrTimeout -= timeout;
8108 piocb->drvrTimeout = 0;
8112 remote_ID = 0xffffffff;
8113 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
8114 remote_ID = cmd->un.elsreq64.remoteID;
8116 struct lpfc_nodelist *ndlp;
8117 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
8119 remote_ID = ndlp->nlp_DID;
8121 list_add_tail(&piocb->dlist, &abort_list);
8123 if (phba->sli_rev == LPFC_SLI_REV4)
8124 spin_unlock(&pring->ring_lock);
8125 spin_unlock_irq(&phba->hbalock);
8127 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
8129 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8130 "0127 ELS timeout Data: x%x x%x x%x "
8131 "x%x\n", els_command,
8132 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
8133 spin_lock_irq(&phba->hbalock);
8134 list_del_init(&piocb->dlist);
8135 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
8136 spin_unlock_irq(&phba->hbalock);
8139 if (!list_empty(&pring->txcmplq))
8140 if (!(phba->pport->load_flag & FC_UNLOADING))
8141 mod_timer(&vport->els_tmofunc,
8142 jiffies + msecs_to_jiffies(1000 * timeout));
8146 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
8147 * @vport: pointer to a host virtual N_Port data structure.
8149 * This routine is used to clean up all the outstanding ELS commands on a
8150 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
8151 * routine. After that, it walks the ELS transmit queue to remove all the
8152 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
8153 * the IOCBs with a non-NULL completion callback function, the callback
8154 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
8155 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
8156 * callback function, the IOCB will simply be released. Finally, it walks
8157 * the ELS transmit completion queue to issue an abort IOCB to any transmit
8158 * completion queue IOCB that is associated with the @vport and is not
8159 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
8160 * part of the discovery state machine) out to HBA by invoking the
8161 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
8162 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
8163 * the IOCBs are aborted when this function returns.
8166 lpfc_els_flush_cmd(struct lpfc_vport *vport)
8168 LIST_HEAD(abort_list);
8169 struct lpfc_hba *phba = vport->phba;
8170 struct lpfc_sli_ring *pring;
8171 struct lpfc_iocbq *tmp_iocb, *piocb;
8173 unsigned long iflags = 0;
8175 lpfc_fabric_abort_vport(vport);
8178 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
8179 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
8180 * ultimately grabs the ring_lock, the driver must splice the list into
8181 * a working list and release the locks before calling the abort.
8183 spin_lock_irqsave(&phba->hbalock, iflags);
8184 pring = lpfc_phba_elsring(phba);
8186 /* Bail out if we've no ELS wq, like in PCI error recovery case. */
8187 if (unlikely(!pring)) {
8188 spin_unlock_irqrestore(&phba->hbalock, iflags);
8192 if (phba->sli_rev == LPFC_SLI_REV4)
8193 spin_lock(&pring->ring_lock);
8195 /* First we need to issue aborts to outstanding cmds on txcmpl */
8196 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
8197 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
8200 if (piocb->vport != vport)
8203 if (piocb->iocb_flag & LPFC_DRIVER_ABORTED)
8206 /* On the ELS ring we can have ELS_REQUESTs or
8207 * GEN_REQUESTs waiting for a response.
8210 if (cmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
8211 list_add_tail(&piocb->dlist, &abort_list);
8213 /* If the link is down when flushing ELS commands
8214 * the firmware will not complete them till after
8215 * the link comes back up. This may confuse
8216 * discovery for the new link up, so we need to
8217 * change the compl routine to just clean up the iocb
8218 * and avoid any retry logic.
8220 if (phba->link_state == LPFC_LINK_DOWN)
8221 piocb->iocb_cmpl = lpfc_cmpl_els_link_down;
8223 if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR)
8224 list_add_tail(&piocb->dlist, &abort_list);
8227 if (phba->sli_rev == LPFC_SLI_REV4)
8228 spin_unlock(&pring->ring_lock);
8229 spin_unlock_irqrestore(&phba->hbalock, iflags);
8231 /* Abort each txcmpl iocb on aborted list and remove the dlist links. */
8232 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
8233 spin_lock_irqsave(&phba->hbalock, iflags);
8234 list_del_init(&piocb->dlist);
8235 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
8236 spin_unlock_irqrestore(&phba->hbalock, iflags);
8238 if (!list_empty(&abort_list))
8239 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8240 "3387 abort list for txq not empty\n");
8241 INIT_LIST_HEAD(&abort_list);
8243 spin_lock_irqsave(&phba->hbalock, iflags);
8244 if (phba->sli_rev == LPFC_SLI_REV4)
8245 spin_lock(&pring->ring_lock);
8247 /* No need to abort the txq list,
8248 * just queue them up for lpfc_sli_cancel_iocbs
8250 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
8253 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
8257 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
8258 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
8259 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
8260 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
8261 cmd->ulpCommand == CMD_ABORT_XRI_CN)
8264 if (piocb->vport != vport)
8267 list_del_init(&piocb->list);
8268 list_add_tail(&piocb->list, &abort_list);
8271 /* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */
8272 if (vport == phba->pport) {
8273 list_for_each_entry_safe(piocb, tmp_iocb,
8274 &phba->fabric_iocb_list, list) {
8276 list_del_init(&piocb->list);
8277 list_add_tail(&piocb->list, &abort_list);
8281 if (phba->sli_rev == LPFC_SLI_REV4)
8282 spin_unlock(&pring->ring_lock);
8283 spin_unlock_irqrestore(&phba->hbalock, iflags);
8285 /* Cancel all the IOCBs from the completions list */
8286 lpfc_sli_cancel_iocbs(phba, &abort_list,
8287 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
8293 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
8294 * @phba: pointer to lpfc hba data structure.
8296 * This routine is used to clean up all the outstanding ELS commands on a
8297 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
8298 * routine. After that, it walks the ELS transmit queue to remove all the
8299 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
8300 * the IOCBs with the completion callback function associated, the callback
8301 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
8302 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
8303 * callback function associated, the IOCB will simply be released. Finally,
8304 * it walks the ELS transmit completion queue to issue an abort IOCB to any
8305 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
8306 * management plane IOCBs that are not part of the discovery state machine)
8307 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
8310 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
8312 struct lpfc_vport *vport;
8314 spin_lock_irq(&phba->port_list_lock);
8315 list_for_each_entry(vport, &phba->port_list, listentry)
8316 lpfc_els_flush_cmd(vport);
8317 spin_unlock_irq(&phba->port_list_lock);
8323 * lpfc_send_els_failure_event - Posts an ELS command failure event
8324 * @phba: Pointer to hba context object.
8325 * @cmdiocbp: Pointer to command iocb which reported error.
8326 * @rspiocbp: Pointer to response iocb which reported error.
8328 * This function sends an event when there is an ELS command
8332 lpfc_send_els_failure_event(struct lpfc_hba *phba,
8333 struct lpfc_iocbq *cmdiocbp,
8334 struct lpfc_iocbq *rspiocbp)
8336 struct lpfc_vport *vport = cmdiocbp->vport;
8337 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8338 struct lpfc_lsrjt_event lsrjt_event;
8339 struct lpfc_fabric_event_header fabric_event;
8341 struct lpfc_nodelist *ndlp;
8344 ndlp = cmdiocbp->context1;
8348 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
8349 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
8350 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
8351 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
8352 sizeof(struct lpfc_name));
8353 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
8354 sizeof(struct lpfc_name));
8355 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8356 cmdiocbp->context2)->virt);
8357 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
8358 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
8359 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
8360 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
8361 fc_host_post_vendor_event(shost,
8362 fc_get_event_number(),
8363 sizeof(lsrjt_event),
8364 (char *)&lsrjt_event,
8368 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
8369 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
8370 fabric_event.event_type = FC_REG_FABRIC_EVENT;
8371 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
8372 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
8374 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
8375 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
8376 sizeof(struct lpfc_name));
8377 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
8378 sizeof(struct lpfc_name));
8379 fc_host_post_vendor_event(shost,
8380 fc_get_event_number(),
8381 sizeof(fabric_event),
8382 (char *)&fabric_event,
8390 * lpfc_send_els_event - Posts unsolicited els event
8391 * @vport: Pointer to vport object.
8392 * @ndlp: Pointer FC node object.
8393 * @payload: ELS command code type.
8395 * This function posts an event when there is an incoming
8396 * unsolicited ELS command.
8399 lpfc_send_els_event(struct lpfc_vport *vport,
8400 struct lpfc_nodelist *ndlp,
8403 struct lpfc_els_event_header *els_data = NULL;
8404 struct lpfc_logo_event *logo_data = NULL;
8405 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8407 if (*payload == ELS_CMD_LOGO) {
8408 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
8410 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8411 "0148 Failed to allocate memory "
8412 "for LOGO event\n");
8415 els_data = &logo_data->header;
8417 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
8420 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8421 "0149 Failed to allocate memory "
8426 els_data->event_type = FC_REG_ELS_EVENT;
8429 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
8432 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
8435 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
8438 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
8439 /* Copy the WWPN in the LOGO payload */
8440 memcpy(logo_data->logo_wwpn, &payload[2],
8441 sizeof(struct lpfc_name));
8447 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
8448 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
8449 if (*payload == ELS_CMD_LOGO) {
8450 fc_host_post_vendor_event(shost,
8451 fc_get_event_number(),
8452 sizeof(struct lpfc_logo_event),
8457 fc_host_post_vendor_event(shost,
8458 fc_get_event_number(),
8459 sizeof(struct lpfc_els_event_header),
8469 DECLARE_ENUM2STR_LOOKUP(lpfc_get_tlv_dtag_nm, fc_ls_tlv_dtag,
8470 FC_LS_TLV_DTAG_INIT);
8472 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types,
8473 FC_FPIN_LI_EVT_TYPES_INIT);
8476 * lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event.
8477 * @vport: Pointer to vport object.
8478 * @tlv: Pointer to the Link Integrity Notification Descriptor.
8480 * This function processes a link integrity FPIN event by
8484 lpfc_els_rcv_fpin_li(struct lpfc_vport *vport, struct fc_tlv_desc *tlv)
8486 struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv;
8487 const char *li_evt_str;
8490 li_evt = be16_to_cpu(li->event_type);
8491 li_evt_str = lpfc_get_fpin_li_event_nm(li_evt);
8493 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8494 "4680 FPIN Link Integrity %s (x%x) "
8495 "Detecting PN x%016llx Attached PN x%016llx "
8496 "Duration %d mSecs Count %d Port Cnt %d\n",
8498 be64_to_cpu(li->detecting_wwpn),
8499 be64_to_cpu(li->attached_wwpn),
8500 be32_to_cpu(li->event_threshold),
8501 be32_to_cpu(li->event_count),
8502 be32_to_cpu(li->pname_count));
8506 lpfc_els_rcv_fpin(struct lpfc_vport *vport, struct fc_els_fpin *fpin,
8509 struct fc_tlv_desc *tlv;
8510 const char *dtag_nm;
8511 uint32_t desc_cnt = 0, bytes_remain;
8514 /* FPINs handled only if we are in the right discovery state */
8515 if (vport->port_state < LPFC_DISC_AUTH)
8518 /* make sure there is the full fpin header */
8519 if (fpin_length < sizeof(struct fc_els_fpin))
8522 tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0];
8523 bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc);
8524 bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len));
8526 /* process each descriptor */
8527 while (bytes_remain >= FC_TLV_DESC_HDR_SZ &&
8528 bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) {
8530 dtag = be32_to_cpu(tlv->desc_tag);
8532 case ELS_DTAG_LNK_INTEGRITY:
8533 lpfc_els_rcv_fpin_li(vport, tlv);
8536 dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
8537 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8538 "4678 skipped FPIN descriptor[%d]: "
8540 desc_cnt, dtag, dtag_nm);
8545 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv);
8546 tlv = fc_tlv_next_desc(tlv);
8549 fc_host_fpin_rcv(lpfc_shost_from_vport(vport), fpin_length,
8554 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
8555 * @phba: pointer to lpfc hba data structure.
8556 * @pring: pointer to a SLI ring.
8557 * @vport: pointer to a host virtual N_Port data structure.
8558 * @elsiocb: pointer to lpfc els command iocb data structure.
8560 * This routine is used for processing the IOCB associated with a unsolicited
8561 * event. It first determines whether there is an existing ndlp that matches
8562 * the DID from the unsolicited IOCB. If not, it will create a new one with
8563 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
8564 * IOCB is then used to invoke the proper routine and to set up proper state
8565 * of the discovery state machine.
8568 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8569 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
8571 struct Scsi_Host *shost;
8572 struct lpfc_nodelist *ndlp;
8574 uint32_t *payload, payload_len;
8575 uint32_t cmd, did, newnode;
8576 uint8_t rjt_exp, rjt_err = 0, init_link = 0;
8577 IOCB_t *icmd = &elsiocb->iocb;
8580 if (!vport || !(elsiocb->context2))
8584 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
8585 payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len;
8587 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
8588 lpfc_post_buffer(phba, pring, 1);
8590 did = icmd->un.rcvels.remoteID;
8591 if (icmd->ulpStatus) {
8592 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8593 "RCV Unsol ELS: status:x%x/x%x did:x%x",
8594 icmd->ulpStatus, icmd->un.ulpWord[4], did);
8598 /* Check to see if link went down during discovery */
8599 if (lpfc_els_chk_latt(vport))
8602 /* Ignore traffic received during vport shutdown. */
8603 if (vport->load_flag & FC_UNLOADING)
8606 /* If NPort discovery is delayed drop incoming ELS */
8607 if ((vport->fc_flag & FC_DISC_DELAYED) &&
8608 (cmd != ELS_CMD_PLOGI))
8611 ndlp = lpfc_findnode_did(vport, did);
8613 /* Cannot find existing Fabric ndlp, so allocate a new one */
8614 ndlp = lpfc_nlp_init(vport, did);
8617 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
8619 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
8620 ndlp->nlp_type |= NLP_FABRIC;
8621 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
8622 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
8626 phba->fc_stat.elsRcvFrame++;
8629 * Do not process any unsolicited ELS commands
8630 * if the ndlp is in DEV_LOSS
8632 shost = lpfc_shost_from_vport(vport);
8633 spin_lock_irq(&ndlp->lock);
8634 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
8635 spin_unlock_irq(&ndlp->lock);
8640 spin_unlock_irq(&ndlp->lock);
8642 elsiocb->context1 = lpfc_nlp_get(ndlp);
8643 if (!elsiocb->context1)
8645 elsiocb->vport = vport;
8647 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
8648 cmd &= ELS_CMD_MASK;
8650 /* ELS command <elsCmd> received from NPORT <did> */
8651 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8652 "0112 ELS command x%x received from NPORT x%x "
8653 "Data: x%x x%x x%x x%x\n",
8654 cmd, did, vport->port_state, vport->fc_flag,
8655 vport->fc_myDID, vport->fc_prevDID);
8657 /* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */
8658 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
8659 (cmd != ELS_CMD_FLOGI) &&
8660 !((cmd == ELS_CMD_PLOGI) && (vport->fc_flag & FC_PT2PT))) {
8661 rjt_err = LSRJT_LOGICAL_BSY;
8662 rjt_exp = LSEXP_NOTHING_MORE;
8668 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8669 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
8670 did, vport->port_state, ndlp->nlp_flag);
8672 phba->fc_stat.elsRcvPLOGI++;
8673 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
8674 if (phba->sli_rev == LPFC_SLI_REV4 &&
8675 (phba->pport->fc_flag & FC_PT2PT)) {
8676 vport->fc_prevDID = vport->fc_myDID;
8677 /* Our DID needs to be updated before registering
8678 * the vfi. This is done in lpfc_rcv_plogi but
8679 * that is called after the reg_vfi.
8681 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
8682 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8683 "3312 Remote port assigned DID x%x "
8684 "%x\n", vport->fc_myDID,
8688 lpfc_send_els_event(vport, ndlp, payload);
8690 /* If Nport discovery is delayed, reject PLOGIs */
8691 if (vport->fc_flag & FC_DISC_DELAYED) {
8692 rjt_err = LSRJT_UNABLE_TPC;
8693 rjt_exp = LSEXP_NOTHING_MORE;
8697 if (vport->port_state < LPFC_DISC_AUTH) {
8698 if (!(phba->pport->fc_flag & FC_PT2PT) ||
8699 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
8700 rjt_err = LSRJT_UNABLE_TPC;
8701 rjt_exp = LSEXP_NOTHING_MORE;
8706 spin_lock_irq(&ndlp->lock);
8707 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
8708 spin_unlock_irq(&ndlp->lock);
8710 lpfc_disc_state_machine(vport, ndlp, elsiocb,
8715 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8716 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
8717 did, vport->port_state, ndlp->nlp_flag);
8719 phba->fc_stat.elsRcvFLOGI++;
8721 /* If the driver believes fabric discovery is done and is ready,
8722 * bounce the link. There is some descrepancy.
8724 if (vport->port_state >= LPFC_LOCAL_CFG_LINK &&
8725 vport->fc_flag & FC_PT2PT &&
8726 vport->rcv_flogi_cnt >= 1) {
8727 rjt_err = LSRJT_LOGICAL_BSY;
8728 rjt_exp = LSEXP_NOTHING_MORE;
8733 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
8735 lpfc_disc_state_machine(vport, ndlp, NULL,
8739 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8740 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
8741 did, vport->port_state, ndlp->nlp_flag);
8743 phba->fc_stat.elsRcvLOGO++;
8744 lpfc_send_els_event(vport, ndlp, payload);
8745 if (vport->port_state < LPFC_DISC_AUTH) {
8746 rjt_err = LSRJT_UNABLE_TPC;
8747 rjt_exp = LSEXP_NOTHING_MORE;
8750 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
8753 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8754 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
8755 did, vport->port_state, ndlp->nlp_flag);
8757 phba->fc_stat.elsRcvPRLO++;
8758 lpfc_send_els_event(vport, ndlp, payload);
8759 if (vport->port_state < LPFC_DISC_AUTH) {
8760 rjt_err = LSRJT_UNABLE_TPC;
8761 rjt_exp = LSEXP_NOTHING_MORE;
8764 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
8767 phba->fc_stat.elsRcvLCB++;
8768 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
8771 phba->fc_stat.elsRcvRDP++;
8772 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
8775 phba->fc_stat.elsRcvRSCN++;
8776 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
8778 lpfc_disc_state_machine(vport, ndlp, NULL,
8782 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8783 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
8784 did, vport->port_state, ndlp->nlp_flag);
8786 lpfc_send_els_event(vport, ndlp, payload);
8787 phba->fc_stat.elsRcvADISC++;
8788 if (vport->port_state < LPFC_DISC_AUTH) {
8789 rjt_err = LSRJT_UNABLE_TPC;
8790 rjt_exp = LSEXP_NOTHING_MORE;
8793 lpfc_disc_state_machine(vport, ndlp, elsiocb,
8797 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8798 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
8799 did, vport->port_state, ndlp->nlp_flag);
8801 phba->fc_stat.elsRcvPDISC++;
8802 if (vport->port_state < LPFC_DISC_AUTH) {
8803 rjt_err = LSRJT_UNABLE_TPC;
8804 rjt_exp = LSEXP_NOTHING_MORE;
8807 lpfc_disc_state_machine(vport, ndlp, elsiocb,
8811 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8812 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
8813 did, vport->port_state, ndlp->nlp_flag);
8815 phba->fc_stat.elsRcvFARPR++;
8816 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
8819 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8820 "RCV FARP: did:x%x/ste:x%x flg:x%x",
8821 did, vport->port_state, ndlp->nlp_flag);
8823 phba->fc_stat.elsRcvFARP++;
8824 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
8827 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8828 "RCV FAN: did:x%x/ste:x%x flg:x%x",
8829 did, vport->port_state, ndlp->nlp_flag);
8831 phba->fc_stat.elsRcvFAN++;
8832 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
8835 case ELS_CMD_NVMEPRLI:
8836 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8837 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
8838 did, vport->port_state, ndlp->nlp_flag);
8840 phba->fc_stat.elsRcvPRLI++;
8841 if ((vport->port_state < LPFC_DISC_AUTH) &&
8842 (vport->fc_flag & FC_FABRIC)) {
8843 rjt_err = LSRJT_UNABLE_TPC;
8844 rjt_exp = LSEXP_NOTHING_MORE;
8847 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
8850 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8851 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
8852 did, vport->port_state, ndlp->nlp_flag);
8854 phba->fc_stat.elsRcvLIRR++;
8855 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
8857 lpfc_disc_state_machine(vport, ndlp, NULL,
8861 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8862 "RCV RLS: did:x%x/ste:x%x flg:x%x",
8863 did, vport->port_state, ndlp->nlp_flag);
8865 phba->fc_stat.elsRcvRLS++;
8866 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
8868 lpfc_disc_state_machine(vport, ndlp, NULL,
8872 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8873 "RCV RPL: did:x%x/ste:x%x flg:x%x",
8874 did, vport->port_state, ndlp->nlp_flag);
8876 phba->fc_stat.elsRcvRPL++;
8877 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
8879 lpfc_disc_state_machine(vport, ndlp, NULL,
8883 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8884 "RCV RNID: did:x%x/ste:x%x flg:x%x",
8885 did, vport->port_state, ndlp->nlp_flag);
8887 phba->fc_stat.elsRcvRNID++;
8888 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
8890 lpfc_disc_state_machine(vport, ndlp, NULL,
8894 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8895 "RCV RTV: did:x%x/ste:x%x flg:x%x",
8896 did, vport->port_state, ndlp->nlp_flag);
8897 phba->fc_stat.elsRcvRTV++;
8898 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
8900 lpfc_disc_state_machine(vport, ndlp, NULL,
8904 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8905 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
8906 did, vport->port_state, ndlp->nlp_flag);
8908 phba->fc_stat.elsRcvRRQ++;
8909 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
8911 lpfc_disc_state_machine(vport, ndlp, NULL,
8915 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8916 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
8917 did, vport->port_state, ndlp->nlp_flag);
8919 phba->fc_stat.elsRcvECHO++;
8920 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
8922 lpfc_disc_state_machine(vport, ndlp, NULL,
8926 /* receive this due to exchange closed */
8927 rjt_err = LSRJT_UNABLE_TPC;
8928 rjt_exp = LSEXP_INVALID_OX_RX;
8931 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8932 "RCV FPIN: did:x%x/ste:x%x flg:x%x",
8933 did, vport->port_state, ndlp->nlp_flag);
8935 lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload,
8938 /* There are no replies, so no rjt codes */
8941 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8942 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
8943 cmd, did, vport->port_state);
8945 /* Unsupported ELS command, reject */
8946 rjt_err = LSRJT_CMD_UNSUPPORTED;
8947 rjt_exp = LSEXP_NOTHING_MORE;
8949 /* Unknown ELS command <elsCmd> received from NPORT <did> */
8950 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8951 "0115 Unknown ELS command x%x "
8952 "received from NPORT x%x\n", cmd, did);
8954 lpfc_disc_state_machine(vport, ndlp, NULL,
8960 /* check if need to LS_RJT received ELS cmd */
8962 memset(&stat, 0, sizeof(stat));
8963 stat.un.b.lsRjtRsnCode = rjt_err;
8964 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
8965 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
8967 /* Remove the reference from above for new nodes. */
8969 lpfc_disc_state_machine(vport, ndlp, NULL,
8973 /* Release the reference on this elsiocb, not the ndlp. */
8974 lpfc_nlp_put(elsiocb->context1);
8975 elsiocb->context1 = NULL;
8977 /* Special case. Driver received an unsolicited command that
8978 * unsupportable given the driver's current state. Reset the
8979 * link and start over.
8982 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8985 lpfc_linkdown(phba);
8986 lpfc_init_link(phba, mbox,
8988 phba->cfg_link_speed);
8989 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
8990 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
8991 mbox->vport = vport;
8992 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
8994 mempool_free(mbox, phba->mbox_mem_pool);
9000 if (vport && !(vport->load_flag & FC_UNLOADING))
9001 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9002 "0111 Dropping received ELS cmd "
9003 "Data: x%x x%x x%x\n",
9004 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
9005 phba->fc_stat.elsRcvDrop++;
9009 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
9010 * @phba: pointer to lpfc hba data structure.
9011 * @pring: pointer to a SLI ring.
9012 * @elsiocb: pointer to lpfc els iocb data structure.
9014 * This routine is used to process an unsolicited event received from a SLI
9015 * (Service Level Interface) ring. The actual processing of the data buffer
9016 * associated with the unsolicited event is done by invoking the routine
9017 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
9018 * SLI ring on which the unsolicited event was received.
9021 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9022 struct lpfc_iocbq *elsiocb)
9024 struct lpfc_vport *vport = phba->pport;
9025 IOCB_t *icmd = &elsiocb->iocb;
9027 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
9028 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
9030 elsiocb->context1 = NULL;
9031 elsiocb->context2 = NULL;
9032 elsiocb->context3 = NULL;
9034 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
9035 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
9036 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
9037 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
9038 IOERR_RCV_BUFFER_WAITING) {
9039 phba->fc_stat.NoRcvBuf++;
9040 /* Not enough posted buffers; Try posting more buffers */
9041 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
9042 lpfc_post_buffer(phba, pring, 0);
9046 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
9047 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
9048 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
9049 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
9050 vport = phba->pport;
9052 vport = lpfc_find_vport_by_vpid(phba,
9053 icmd->unsli3.rcvsli3.vpi);
9056 /* If there are no BDEs associated
9057 * with this IOCB, there is nothing to do.
9059 if (icmd->ulpBdeCount == 0)
9062 /* type of ELS cmd is first 32bit word
9065 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
9066 elsiocb->context2 = bdeBuf1;
9068 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
9069 icmd->un.cont64[0].addrLow);
9070 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
9074 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
9076 * The different unsolicited event handlers would tell us
9077 * if they are done with "mp" by setting context2 to NULL.
9079 if (elsiocb->context2) {
9080 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
9081 elsiocb->context2 = NULL;
9084 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
9085 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
9086 icmd->ulpBdeCount == 2) {
9087 elsiocb->context2 = bdeBuf2;
9088 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
9089 /* free mp if we are done with it */
9090 if (elsiocb->context2) {
9091 lpfc_in_buf_free(phba, elsiocb->context2);
9092 elsiocb->context2 = NULL;
9098 lpfc_start_fdmi(struct lpfc_vport *vport)
9100 struct lpfc_nodelist *ndlp;
9102 /* If this is the first time, allocate an ndlp and initialize
9103 * it. Otherwise, make sure the node is enabled and then do the
9106 ndlp = lpfc_findnode_did(vport, FDMI_DID);
9108 ndlp = lpfc_nlp_init(vport, FDMI_DID);
9110 ndlp->nlp_type |= NLP_FABRIC;
9116 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
9117 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
9121 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
9122 * @phba: pointer to lpfc hba data structure.
9123 * @vport: pointer to a virtual N_Port data structure.
9125 * This routine issues a Port Login (PLOGI) to the Name Server with
9126 * State Change Request (SCR) for a @vport. This routine will create an
9127 * ndlp for the Name Server associated to the @vport if such node does
9128 * not already exist. The PLOGI to Name Server is issued by invoking the
9129 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
9130 * (FDMI) is configured to the @vport, a FDMI node will be created and
9131 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
9134 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
9136 struct lpfc_nodelist *ndlp;
9137 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9140 * If lpfc_delay_discovery parameter is set and the clean address
9141 * bit is cleared and fc fabric parameters chenged, delay FC NPort
9144 spin_lock_irq(shost->host_lock);
9145 if (vport->fc_flag & FC_DISC_DELAYED) {
9146 spin_unlock_irq(shost->host_lock);
9147 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9148 "3334 Delay fc port discovery for %d seconds\n",
9150 mod_timer(&vport->delayed_disc_tmo,
9151 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
9154 spin_unlock_irq(shost->host_lock);
9156 ndlp = lpfc_findnode_did(vport, NameServer_DID);
9158 ndlp = lpfc_nlp_init(vport, NameServer_DID);
9160 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9161 lpfc_disc_start(vport);
9164 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9165 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9166 "0251 NameServer login: no memory\n");
9171 ndlp->nlp_type |= NLP_FABRIC;
9173 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
9175 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
9176 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9177 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9178 "0252 Cannot issue NameServer login\n");
9182 if ((phba->cfg_enable_SmartSAN ||
9183 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
9184 (vport->load_flag & FC_ALLOW_FDMI))
9185 lpfc_start_fdmi(vport);
9189 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
9190 * @phba: pointer to lpfc hba data structure.
9191 * @pmb: pointer to the driver internal queue element for mailbox command.
9193 * This routine is the completion callback function to register new vport
9194 * mailbox command. If the new vport mailbox command completes successfully,
9195 * the fabric registration login shall be performed on physical port (the
9196 * new vport created is actually a physical port, with VPI 0) or the port
9197 * login to Name Server for State Change Request (SCR) will be performed
9198 * on virtual port (real virtual port, with VPI greater than 0).
9201 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
9203 struct lpfc_vport *vport = pmb->vport;
9204 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9205 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
9206 MAILBOX_t *mb = &pmb->u.mb;
9209 spin_lock_irq(shost->host_lock);
9210 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
9211 spin_unlock_irq(shost->host_lock);
9213 if (mb->mbxStatus) {
9214 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9215 "0915 Register VPI failed : Status: x%x"
9216 " upd bit: x%x \n", mb->mbxStatus,
9217 mb->un.varRegVpi.upd);
9218 if (phba->sli_rev == LPFC_SLI_REV4 &&
9219 mb->un.varRegVpi.upd)
9220 goto mbox_err_exit ;
9222 switch (mb->mbxStatus) {
9223 case 0x11: /* unsupported feature */
9224 case 0x9603: /* max_vpi exceeded */
9225 case 0x9602: /* Link event since CLEAR_LA */
9226 /* giving up on vport registration */
9227 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9228 spin_lock_irq(shost->host_lock);
9229 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
9230 spin_unlock_irq(shost->host_lock);
9231 lpfc_can_disctmo(vport);
9233 /* If reg_vpi fail with invalid VPI status, re-init VPI */
9235 spin_lock_irq(shost->host_lock);
9236 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
9237 spin_unlock_irq(shost->host_lock);
9238 lpfc_init_vpi(phba, pmb, vport->vpi);
9240 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
9241 rc = lpfc_sli_issue_mbox(phba, pmb,
9243 if (rc == MBX_NOT_FINISHED) {
9244 lpfc_printf_vlog(vport, KERN_ERR,
9246 "2732 Failed to issue INIT_VPI"
9247 " mailbox command\n");
9254 /* Try to recover from this error */
9255 if (phba->sli_rev == LPFC_SLI_REV4)
9256 lpfc_sli4_unreg_all_rpis(vport);
9257 lpfc_mbx_unreg_vpi(vport);
9258 spin_lock_irq(shost->host_lock);
9259 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
9260 spin_unlock_irq(shost->host_lock);
9261 if (mb->mbxStatus == MBX_NOT_FINISHED)
9263 if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
9264 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
9265 if (phba->sli_rev == LPFC_SLI_REV4)
9266 lpfc_issue_init_vfi(vport);
9268 lpfc_initial_flogi(vport);
9270 lpfc_initial_fdisc(vport);
9275 spin_lock_irq(shost->host_lock);
9276 vport->vpi_state |= LPFC_VPI_REGISTERED;
9277 spin_unlock_irq(shost->host_lock);
9278 if (vport == phba->pport) {
9279 if (phba->sli_rev < LPFC_SLI_REV4)
9280 lpfc_issue_fabric_reglogin(vport);
9283 * If the physical port is instantiated using
9284 * FDISC, do not start vport discovery.
9286 if (vport->port_state != LPFC_FDISC)
9287 lpfc_start_fdiscs(phba);
9288 lpfc_do_scr_ns_plogi(phba, vport);
9291 lpfc_do_scr_ns_plogi(phba, vport);
9295 /* Now, we decrement the ndlp reference count held for this
9300 mempool_free(pmb, phba->mbox_mem_pool);
9305 * lpfc_register_new_vport - Register a new vport with a HBA
9306 * @phba: pointer to lpfc hba data structure.
9307 * @vport: pointer to a host virtual N_Port data structure.
9308 * @ndlp: pointer to a node-list data structure.
9310 * This routine registers the @vport as a new virtual port with a HBA.
9311 * It is done through a registering vpi mailbox command.
9314 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
9315 struct lpfc_nodelist *ndlp)
9317 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9320 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9322 lpfc_reg_vpi(vport, mbox);
9323 mbox->vport = vport;
9324 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
9325 if (!mbox->ctx_ndlp) {
9326 mempool_free(mbox, phba->mbox_mem_pool);
9330 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
9331 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
9332 == MBX_NOT_FINISHED) {
9333 /* mailbox command not success, decrement ndlp
9334 * reference count for this command
9337 mempool_free(mbox, phba->mbox_mem_pool);
9339 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9340 "0253 Register VPI: Can't send mbox\n");
9344 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9345 "0254 Register VPI: no memory\n");
9351 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9352 spin_lock_irq(shost->host_lock);
9353 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
9354 spin_unlock_irq(shost->host_lock);
9359 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
9360 * @phba: pointer to lpfc hba data structure.
9362 * This routine cancels the retry delay timers to all the vports.
9365 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
9367 struct lpfc_vport **vports;
9368 struct lpfc_nodelist *ndlp;
9369 uint32_t link_state;
9372 /* Treat this failure as linkdown for all vports */
9373 link_state = phba->link_state;
9374 lpfc_linkdown(phba);
9375 phba->link_state = link_state;
9377 vports = lpfc_create_vport_work_array(phba);
9380 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9381 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
9383 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
9384 lpfc_els_flush_cmd(vports[i]);
9386 lpfc_destroy_vport_work_array(phba, vports);
9391 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
9392 * @phba: pointer to lpfc hba data structure.
9394 * This routine abort all pending discovery commands and
9395 * start a timer to retry FLOGI for the physical port
9399 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
9401 struct lpfc_nodelist *ndlp;
9402 struct Scsi_Host *shost;
9404 /* Cancel the all vports retry delay retry timers */
9405 lpfc_cancel_all_vport_retry_delay_timer(phba);
9407 /* If fabric require FLOGI, then re-instantiate physical login */
9408 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
9412 shost = lpfc_shost_from_vport(phba->pport);
9413 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
9414 spin_lock_irq(&ndlp->lock);
9415 ndlp->nlp_flag |= NLP_DELAY_TMO;
9416 spin_unlock_irq(&ndlp->lock);
9417 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
9418 phba->pport->port_state = LPFC_FLOGI;
9423 * lpfc_fabric_login_reqd - Check if FLOGI required.
9424 * @phba: pointer to lpfc hba data structure.
9425 * @cmdiocb: pointer to FDISC command iocb.
9426 * @rspiocb: pointer to FDISC response iocb.
9428 * This routine checks if a FLOGI is reguired for FDISC
9432 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
9433 struct lpfc_iocbq *cmdiocb,
9434 struct lpfc_iocbq *rspiocb)
9437 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
9438 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
9445 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
9446 * @phba: pointer to lpfc hba data structure.
9447 * @cmdiocb: pointer to lpfc command iocb data structure.
9448 * @rspiocb: pointer to lpfc response iocb data structure.
9450 * This routine is the completion callback function to a Fabric Discover
9451 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
9452 * single threaded, each FDISC completion callback function will reset
9453 * the discovery timer for all vports such that the timers will not get
9454 * unnecessary timeout. The function checks the FDISC IOCB status. If error
9455 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
9456 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
9457 * assigned to the vport has been changed with the completion of the FDISC
9458 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
9459 * are unregistered from the HBA, and then the lpfc_register_new_vport()
9460 * routine is invoked to register new vport with the HBA. Otherwise, the
9461 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
9462 * Server for State Change Request (SCR).
9465 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9466 struct lpfc_iocbq *rspiocb)
9468 struct lpfc_vport *vport = cmdiocb->vport;
9469 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9470 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
9471 struct lpfc_nodelist *np;
9472 struct lpfc_nodelist *next_np;
9473 IOCB_t *irsp = &rspiocb->iocb;
9474 struct lpfc_iocbq *piocb;
9475 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
9476 struct serv_parm *sp;
9477 uint8_t fabric_param_changed;
9479 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
9480 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
9481 irsp->ulpStatus, irsp->un.ulpWord[4],
9483 /* Since all FDISCs are being single threaded, we
9484 * must reset the discovery timer for ALL vports
9485 * waiting to send FDISC when one completes.
9487 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
9488 lpfc_set_disctmo(piocb->vport);
9491 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
9492 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
9493 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
9495 if (irsp->ulpStatus) {
9497 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
9498 lpfc_retry_pport_discovery(phba);
9502 /* Check for retry */
9503 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
9506 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9507 "0126 FDISC failed. (x%x/x%x)\n",
9508 irsp->ulpStatus, irsp->un.ulpWord[4]);
9511 spin_lock_irq(shost->host_lock);
9512 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
9513 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
9514 vport->fc_flag |= FC_FABRIC;
9515 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
9516 vport->fc_flag |= FC_PUBLIC_LOOP;
9517 spin_unlock_irq(shost->host_lock);
9519 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
9520 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
9521 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
9524 sp = prsp->virt + sizeof(uint32_t);
9525 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
9526 memcpy(&vport->fabric_portname, &sp->portName,
9527 sizeof(struct lpfc_name));
9528 memcpy(&vport->fabric_nodename, &sp->nodeName,
9529 sizeof(struct lpfc_name));
9530 if (fabric_param_changed &&
9531 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
9532 /* If our NportID changed, we need to ensure all
9533 * remaining NPORTs get unreg_login'ed so we can
9536 list_for_each_entry_safe(np, next_np,
9537 &vport->fc_nodes, nlp_listp) {
9538 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
9539 !(np->nlp_flag & NLP_NPR_ADISC))
9541 spin_lock_irq(&ndlp->lock);
9542 np->nlp_flag &= ~NLP_NPR_ADISC;
9543 spin_unlock_irq(&ndlp->lock);
9544 lpfc_unreg_rpi(vport, np);
9546 lpfc_cleanup_pending_mbox(vport);
9548 if (phba->sli_rev == LPFC_SLI_REV4)
9549 lpfc_sli4_unreg_all_rpis(vport);
9551 lpfc_mbx_unreg_vpi(vport);
9552 spin_lock_irq(shost->host_lock);
9553 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
9554 if (phba->sli_rev == LPFC_SLI_REV4)
9555 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
9557 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
9558 spin_unlock_irq(shost->host_lock);
9559 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
9560 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
9562 * Driver needs to re-reg VPI in order for f/w
9563 * to update the MAC address.
9565 lpfc_register_new_vport(phba, vport, ndlp);
9566 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
9570 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
9571 lpfc_issue_init_vpi(vport);
9572 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
9573 lpfc_register_new_vport(phba, vport, ndlp);
9575 lpfc_do_scr_ns_plogi(phba, vport);
9577 /* The FDISC completed successfully. Move the fabric ndlp to
9578 * UNMAPPED state and register with the transport.
9580 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
9584 if (vport->fc_vport &&
9585 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS))
9586 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9587 /* Cancel discovery timer */
9588 lpfc_can_disctmo(vport);
9590 lpfc_els_free_iocb(phba, cmdiocb);
9595 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
9596 * @vport: pointer to a virtual N_Port data structure.
9597 * @ndlp: pointer to a node-list data structure.
9598 * @retry: number of retries to the command IOCB.
9600 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
9601 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
9602 * routine to issue the IOCB, which makes sure only one outstanding fabric
9603 * IOCB will be sent off HBA at any given time.
9605 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
9606 * will be incremented by 1 for holding the ndlp and the reference to ndlp
9607 * will be stored into the context1 field of the IOCB for the completion
9608 * callback function to the FDISC ELS command.
9611 * 0 - Successfully issued fdisc iocb command
9612 * 1 - Failed to issue fdisc iocb command
9615 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
9618 struct lpfc_hba *phba = vport->phba;
9620 struct lpfc_iocbq *elsiocb;
9621 struct serv_parm *sp;
9624 int did = ndlp->nlp_DID;
9627 vport->port_state = LPFC_FDISC;
9628 vport->fc_myDID = 0;
9629 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
9630 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
9633 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9634 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9635 "0255 Issue FDISC: no IOCB\n");
9639 icmd = &elsiocb->iocb;
9640 icmd->un.elsreq64.myID = 0;
9641 icmd->un.elsreq64.fl = 1;
9644 * SLI3 ports require a different context type value than SLI4.
9645 * Catch SLI3 ports here and override the prep.
9647 if (phba->sli_rev == LPFC_SLI_REV3) {
9652 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
9653 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
9654 pcmd += sizeof(uint32_t); /* CSP Word 1 */
9655 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
9656 sp = (struct serv_parm *) pcmd;
9657 /* Setup CSPs accordingly for Fabric */
9658 sp->cmn.e_d_tov = 0;
9659 sp->cmn.w2.r_a_tov = 0;
9660 sp->cmn.virtual_fabric_support = 0;
9661 sp->cls1.classValid = 0;
9662 sp->cls2.seqDelivery = 1;
9663 sp->cls3.seqDelivery = 1;
9665 pcmd += sizeof(uint32_t); /* CSP Word 2 */
9666 pcmd += sizeof(uint32_t); /* CSP Word 3 */
9667 pcmd += sizeof(uint32_t); /* CSP Word 4 */
9668 pcmd += sizeof(uint32_t); /* Port Name */
9669 memcpy(pcmd, &vport->fc_portname, 8);
9670 pcmd += sizeof(uint32_t); /* Node Name */
9671 pcmd += sizeof(uint32_t); /* Node Name */
9672 memcpy(pcmd, &vport->fc_nodename, 8);
9673 sp->cmn.valid_vendor_ver_level = 0;
9674 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
9675 lpfc_set_disctmo(vport);
9677 phba->fc_stat.elsXmitFDISC++;
9678 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
9680 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
9681 "Issue FDISC: did:x%x",
9684 elsiocb->context1 = lpfc_nlp_get(ndlp);
9685 if (!elsiocb->context1)
9688 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
9689 if (rc == IOCB_ERROR) {
9694 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
9698 lpfc_els_free_iocb(phba, elsiocb);
9699 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9700 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9701 "0256 Issue FDISC: Cannot send IOCB\n");
9706 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
9707 * @phba: pointer to lpfc hba data structure.
9708 * @cmdiocb: pointer to lpfc command iocb data structure.
9709 * @rspiocb: pointer to lpfc response iocb data structure.
9711 * This routine is the completion callback function to the issuing of a LOGO
9712 * ELS command off a vport. It frees the command IOCB and then decrement the
9713 * reference count held on ndlp for this completion function, indicating that
9714 * the reference to the ndlp is no long needed. Note that the
9715 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
9716 * callback function and an additional explicit ndlp reference decrementation
9717 * will trigger the actual release of the ndlp.
9720 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9721 struct lpfc_iocbq *rspiocb)
9723 struct lpfc_vport *vport = cmdiocb->vport;
9725 struct lpfc_nodelist *ndlp;
9726 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9728 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
9729 irsp = &rspiocb->iocb;
9730 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
9731 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
9732 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
9734 /* NPIV LOGO completes to NPort <nlp_DID> */
9735 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
9736 "2928 NPIV LOGO completes to NPort x%x "
9737 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
9738 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
9739 irsp->ulpTimeout, vport->num_disc_nodes,
9740 kref_read(&ndlp->kref), ndlp->nlp_flag,
9741 ndlp->fc4_xpt_flags);
9743 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
9744 spin_lock_irq(shost->host_lock);
9745 vport->fc_flag &= ~FC_NDISC_ACTIVE;
9746 vport->fc_flag &= ~FC_FABRIC;
9747 spin_unlock_irq(shost->host_lock);
9748 lpfc_can_disctmo(vport);
9751 /* Safe to release resources now. */
9752 lpfc_els_free_iocb(phba, cmdiocb);
9754 vport->unreg_vpi_cmpl = VPORT_ERROR;
9758 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
9759 * @vport: pointer to a virtual N_Port data structure.
9760 * @ndlp: pointer to a node-list data structure.
9762 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
9764 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
9765 * will be incremented by 1 for holding the ndlp and the reference to ndlp
9766 * will be stored into the context1 field of the IOCB for the completion
9767 * callback function to the LOGO ELS command.
9770 * 0 - Successfully issued logo off the @vport
9771 * 1 - Failed to issue logo off the @vport
9774 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
9777 struct lpfc_hba *phba = vport->phba;
9778 struct lpfc_iocbq *elsiocb;
9782 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
9783 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
9788 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
9789 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
9790 pcmd += sizeof(uint32_t);
9792 /* Fill in LOGO payload */
9793 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
9794 pcmd += sizeof(uint32_t);
9795 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
9797 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
9798 "Issue LOGO npiv did:x%x flg:x%x",
9799 ndlp->nlp_DID, ndlp->nlp_flag, 0);
9801 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
9802 spin_lock_irq(&ndlp->lock);
9803 ndlp->nlp_flag |= NLP_LOGO_SND;
9804 spin_unlock_irq(&ndlp->lock);
9805 elsiocb->context1 = lpfc_nlp_get(ndlp);
9806 if (!elsiocb->context1)
9808 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
9809 if (rc == IOCB_ERROR)
9816 spin_lock_irq(&ndlp->lock);
9817 ndlp->nlp_flag &= ~NLP_LOGO_SND;
9818 spin_unlock_irq(&ndlp->lock);
9819 lpfc_els_free_iocb(phba, elsiocb);
9824 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
9825 * @t: timer context used to obtain the lpfc hba.
9827 * This routine is invoked by the fabric iocb block timer after
9828 * timeout. It posts the fabric iocb block timeout event by setting the
9829 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
9830 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
9831 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
9832 * posted event WORKER_FABRIC_BLOCK_TMO.
9835 lpfc_fabric_block_timeout(struct timer_list *t)
9837 struct lpfc_hba *phba = from_timer(phba, t, fabric_block_timer);
9838 unsigned long iflags;
9839 uint32_t tmo_posted;
9841 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
9842 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
9844 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
9845 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
9848 lpfc_worker_wake_up(phba);
9853 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
9854 * @phba: pointer to lpfc hba data structure.
9856 * This routine issues one fabric iocb from the driver internal list to
9857 * the HBA. It first checks whether it's ready to issue one fabric iocb to
9858 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
9859 * remove one pending fabric iocb from the driver internal list and invokes
9860 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
9863 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
9865 struct lpfc_iocbq *iocb;
9866 unsigned long iflags;
9872 spin_lock_irqsave(&phba->hbalock, iflags);
9873 /* Post any pending iocb to the SLI layer */
9874 if (atomic_read(&phba->fabric_iocb_count) == 0) {
9875 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
9878 /* Increment fabric iocb count to hold the position */
9879 atomic_inc(&phba->fabric_iocb_count);
9881 spin_unlock_irqrestore(&phba->hbalock, iflags);
9883 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
9884 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
9885 iocb->iocb_flag |= LPFC_IO_FABRIC;
9887 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
9888 "Fabric sched1: ste:x%x",
9889 iocb->vport->port_state, 0, 0);
9891 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
9893 if (ret == IOCB_ERROR) {
9894 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
9895 iocb->fabric_iocb_cmpl = NULL;
9896 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
9898 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
9899 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
9900 iocb->iocb_cmpl(phba, iocb, iocb);
9902 atomic_dec(&phba->fabric_iocb_count);
9909 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
9910 * @phba: pointer to lpfc hba data structure.
9912 * This routine unblocks the issuing fabric iocb command. The function
9913 * will clear the fabric iocb block bit and then invoke the routine
9914 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
9915 * from the driver internal fabric iocb list.
9918 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
9920 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
9922 lpfc_resume_fabric_iocbs(phba);
9927 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
9928 * @phba: pointer to lpfc hba data structure.
9930 * This routine blocks the issuing fabric iocb for a specified amount of
9931 * time (currently 100 ms). This is done by set the fabric iocb block bit
9932 * and set up a timeout timer for 100ms. When the block bit is set, no more
9933 * fabric iocb will be issued out of the HBA.
9936 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
9940 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
9941 /* Start a timer to unblock fabric iocbs after 100ms */
9943 mod_timer(&phba->fabric_block_timer,
9944 jiffies + msecs_to_jiffies(100));
9950 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
9951 * @phba: pointer to lpfc hba data structure.
9952 * @cmdiocb: pointer to lpfc command iocb data structure.
9953 * @rspiocb: pointer to lpfc response iocb data structure.
9955 * This routine is the callback function that is put to the fabric iocb's
9956 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
9957 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
9958 * function first restores and invokes the original iocb's callback function
9959 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
9960 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
9963 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9964 struct lpfc_iocbq *rspiocb)
9968 BUG_ON((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC);
9970 switch (rspiocb->iocb.ulpStatus) {
9971 case IOSTAT_NPORT_RJT:
9972 case IOSTAT_FABRIC_RJT:
9973 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
9974 lpfc_block_fabric_iocbs(phba);
9978 case IOSTAT_NPORT_BSY:
9979 case IOSTAT_FABRIC_BSY:
9980 lpfc_block_fabric_iocbs(phba);
9984 stat.un.lsRjtError =
9985 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
9986 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
9987 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
9988 lpfc_block_fabric_iocbs(phba);
9992 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0);
9994 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
9995 cmdiocb->fabric_iocb_cmpl = NULL;
9996 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
9997 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
9999 atomic_dec(&phba->fabric_iocb_count);
10000 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
10001 /* Post any pending iocbs to HBA */
10002 lpfc_resume_fabric_iocbs(phba);
10007 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
10008 * @phba: pointer to lpfc hba data structure.
10009 * @iocb: pointer to lpfc command iocb data structure.
10011 * This routine is used as the top-level API for issuing a fabric iocb command
10012 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
10013 * function makes sure that only one fabric bound iocb will be outstanding at
10014 * any given time. As such, this function will first check to see whether there
10015 * is already an outstanding fabric iocb on the wire. If so, it will put the
10016 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
10017 * issued later. Otherwise, it will issue the iocb on the wire and update the
10018 * fabric iocb count it indicate that there is one fabric iocb on the wire.
10020 * Note, this implementation has a potential sending out fabric IOCBs out of
10021 * order. The problem is caused by the construction of the "ready" boolen does
10022 * not include the condition that the internal fabric IOCB list is empty. As
10023 * such, it is possible a fabric IOCB issued by this routine might be "jump"
10024 * ahead of the fabric IOCBs in the internal list.
10027 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
10028 * IOCB_ERROR - failed to issue fabric iocb
10031 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
10033 unsigned long iflags;
10037 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1);
10039 spin_lock_irqsave(&phba->hbalock, iflags);
10040 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
10041 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
10044 /* Increment fabric iocb count to hold the position */
10045 atomic_inc(&phba->fabric_iocb_count);
10046 spin_unlock_irqrestore(&phba->hbalock, iflags);
10048 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
10049 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
10050 iocb->iocb_flag |= LPFC_IO_FABRIC;
10052 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
10053 "Fabric sched2: ste:x%x",
10054 iocb->vport->port_state, 0, 0);
10056 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
10058 if (ret == IOCB_ERROR) {
10059 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
10060 iocb->fabric_iocb_cmpl = NULL;
10061 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
10062 atomic_dec(&phba->fabric_iocb_count);
10065 spin_lock_irqsave(&phba->hbalock, iflags);
10066 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
10067 spin_unlock_irqrestore(&phba->hbalock, iflags);
10068 ret = IOCB_SUCCESS;
10074 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
10075 * @vport: pointer to a virtual N_Port data structure.
10077 * This routine aborts all the IOCBs associated with a @vport from the
10078 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
10079 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
10080 * list, removes each IOCB associated with the @vport off the list, set the
10081 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
10082 * associated with the IOCB.
10084 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
10086 LIST_HEAD(completions);
10087 struct lpfc_hba *phba = vport->phba;
10088 struct lpfc_iocbq *tmp_iocb, *piocb;
10090 spin_lock_irq(&phba->hbalock);
10091 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
10094 if (piocb->vport != vport)
10097 list_move_tail(&piocb->list, &completions);
10099 spin_unlock_irq(&phba->hbalock);
10101 /* Cancel all the IOCBs from the completions list */
10102 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10103 IOERR_SLI_ABORTED);
10107 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
10108 * @ndlp: pointer to a node-list data structure.
10110 * This routine aborts all the IOCBs associated with an @ndlp from the
10111 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
10112 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
10113 * list, removes each IOCB associated with the @ndlp off the list, set the
10114 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
10115 * associated with the IOCB.
10117 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
10119 LIST_HEAD(completions);
10120 struct lpfc_hba *phba = ndlp->phba;
10121 struct lpfc_iocbq *tmp_iocb, *piocb;
10122 struct lpfc_sli_ring *pring;
10124 pring = lpfc_phba_elsring(phba);
10126 if (unlikely(!pring))
10129 spin_lock_irq(&phba->hbalock);
10130 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
10132 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
10134 list_move_tail(&piocb->list, &completions);
10137 spin_unlock_irq(&phba->hbalock);
10139 /* Cancel all the IOCBs from the completions list */
10140 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10141 IOERR_SLI_ABORTED);
10145 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
10146 * @phba: pointer to lpfc hba data structure.
10148 * This routine aborts all the IOCBs currently on the driver internal
10149 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
10150 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
10151 * list, removes IOCBs off the list, set the status feild to
10152 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
10155 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
10157 LIST_HEAD(completions);
10159 spin_lock_irq(&phba->hbalock);
10160 list_splice_init(&phba->fabric_iocb_list, &completions);
10161 spin_unlock_irq(&phba->hbalock);
10163 /* Cancel all the IOCBs from the completions list */
10164 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10165 IOERR_SLI_ABORTED);
10169 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
10170 * @vport: pointer to lpfc vport data structure.
10172 * This routine is invoked by the vport cleanup for deletions and the cleanup
10173 * for an ndlp on removal.
10176 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
10178 struct lpfc_hba *phba = vport->phba;
10179 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
10180 unsigned long iflag = 0;
10182 spin_lock_irqsave(&phba->hbalock, iflag);
10183 spin_lock(&phba->sli4_hba.sgl_list_lock);
10184 list_for_each_entry_safe(sglq_entry, sglq_next,
10185 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
10186 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) {
10187 lpfc_nlp_put(sglq_entry->ndlp);
10188 sglq_entry->ndlp = NULL;
10191 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10192 spin_unlock_irqrestore(&phba->hbalock, iflag);
10197 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
10198 * @phba: pointer to lpfc hba data structure.
10199 * @axri: pointer to the els xri abort wcqe structure.
10201 * This routine is invoked by the worker thread to process a SLI4 slow-path
10205 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
10206 struct sli4_wcqe_xri_aborted *axri)
10208 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
10209 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
10212 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
10213 unsigned long iflag = 0;
10214 struct lpfc_nodelist *ndlp;
10215 struct lpfc_sli_ring *pring;
10217 pring = lpfc_phba_elsring(phba);
10219 spin_lock_irqsave(&phba->hbalock, iflag);
10220 spin_lock(&phba->sli4_hba.sgl_list_lock);
10221 list_for_each_entry_safe(sglq_entry, sglq_next,
10222 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
10223 if (sglq_entry->sli4_xritag == xri) {
10224 list_del(&sglq_entry->list);
10225 ndlp = sglq_entry->ndlp;
10226 sglq_entry->ndlp = NULL;
10227 list_add_tail(&sglq_entry->list,
10228 &phba->sli4_hba.lpfc_els_sgl_list);
10229 sglq_entry->state = SGL_FREED;
10230 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10231 spin_unlock_irqrestore(&phba->hbalock, iflag);
10234 lpfc_set_rrq_active(phba, ndlp,
10235 sglq_entry->sli4_lxritag,
10237 lpfc_nlp_put(ndlp);
10240 /* Check if TXQ queue needs to be serviced */
10241 if (pring && !list_empty(&pring->txq))
10242 lpfc_worker_wake_up(phba);
10246 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10247 lxri = lpfc_sli4_xri_inrange(phba, xri);
10248 if (lxri == NO_XRI) {
10249 spin_unlock_irqrestore(&phba->hbalock, iflag);
10252 spin_lock(&phba->sli4_hba.sgl_list_lock);
10253 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
10254 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
10255 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10256 spin_unlock_irqrestore(&phba->hbalock, iflag);
10259 sglq_entry->state = SGL_XRI_ABORTED;
10260 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10261 spin_unlock_irqrestore(&phba->hbalock, iflag);
10265 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
10266 * @vport: pointer to virtual port object.
10267 * @ndlp: nodelist pointer for the impacted node.
10269 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
10270 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
10271 * the driver is required to send a LOGO to the remote node before it
10272 * attempts to recover its login to the remote node.
10275 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
10276 struct lpfc_nodelist *ndlp)
10278 struct Scsi_Host *shost;
10279 struct lpfc_hba *phba;
10280 unsigned long flags = 0;
10282 shost = lpfc_shost_from_vport(vport);
10283 phba = vport->phba;
10284 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
10285 lpfc_printf_log(phba, KERN_INFO,
10286 LOG_SLI, "3093 No rport recovery needed. "
10287 "rport in state 0x%x\n", ndlp->nlp_state);
10290 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10291 "3094 Start rport recovery on shost id 0x%x "
10292 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
10294 shost->host_no, ndlp->nlp_DID,
10295 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
10298 * The rport is not responding. Remove the FCP-2 flag to prevent
10299 * an ADISC in the follow-up recovery code.
10301 spin_lock_irqsave(&ndlp->lock, flags);
10302 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
10303 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
10304 spin_unlock_irqrestore(&ndlp->lock, flags);
10305 lpfc_unreg_rpi(vport, ndlp);